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author Miodrag Milanovic <mmicko@gmail.com>2014-05-30 10:18:47 +0000
committer Miodrag Milanovic <mmicko@gmail.com>2014-05-30 10:18:47 +0000
commitff99c901e9482217fddd445d3ec94be8fdba17a4 (patch)
treee77ad47db76965de147ba94179db22be44bb1b88
parent7dc5e8b5331ef6fff24a823e15a36dda83115954 (diff)
Updated to latest mongoose code in agreement with author (nw)
-rw-r--r--src/emu/webengine.c274
-rw-r--r--src/emu/webengine.h10
-rw-r--r--src/lib/web/mongoose.c9604
-rw-r--r--src/lib/web/mongoose.h470
4 files changed, 4825 insertions, 5533 deletions
diff --git a/src/emu/webengine.c b/src/emu/webengine.c
index c43b5fe54ff..f179653a5e7 100644
--- a/src/emu/webengine.c
+++ b/src/emu/webengine.c
@@ -20,34 +20,6 @@
// WEB ENGINE
//**************************************************************************
-void web_engine::websocket_ready_handler(struct mg_connection *conn) {
- static const char *message = "update_machine";
- mg_websocket_write(conn, WEBSOCKET_OPCODE_TEXT, message, strlen(message));
- m_websockets.append(*global_alloc(simple_list_wrapper<mg_connection>(conn)));
-}
-
-// Arguments:
-// flags: first byte of websocket frame, see websocket RFC,
-// http://tools.ietf.org/html/rfc6455, section 5.2
-// data, data_len: payload data. Mask, if any, is already applied.
-int web_engine::websocket_data_handler(struct mg_connection *conn, int flags,
- char *data, size_t data_len)
-{
- // just Echo example for now
- if ((flags & 0x0f) == WEBSOCKET_OPCODE_TEXT)
- mg_websocket_write(conn, WEBSOCKET_OPCODE_TEXT, data, data_len);
-
- // Returning zero means stoping websocket conversation.
- // Close the conversation if client has sent us "exit" string.
- return memcmp(data, "exit", 4);
-}
-
-static void get_qsvar(const struct mg_request_info *request_info,
- const char *name, char *dst, size_t dst_len) {
- const char *qs = request_info->query_string;
- mg_get_var(qs, strlen(qs == NULL ? "" : qs), name, dst, dst_len);
-}
-
char* websanitize_statefilename ( char* unsanitized )
{
// It's important that we remove any dangerous characters from any filename
@@ -107,7 +79,8 @@ int web_engine::json_game_handler(struct mg_connection *conn)
// Returning non-zero tells mongoose that our function has replied to
// the client, and mongoose should not send client any more data.
- return 1;
+
+ return MG_TRUE;
}
int web_engine::json_slider_handler(struct mg_connection *conn)
@@ -116,7 +89,7 @@ int web_engine::json_slider_handler(struct mg_connection *conn)
astring tempstring;
Json::Value array(Json::arrayValue);
- /* add all sliders */
+ // add all sliders
for (curslider = machine().ui().get_slider_list(); curslider != NULL; curslider = curslider->next)
{
INT32 curval = (*curslider->update)(machine(), curslider->arg, &tempstring, SLIDER_NOCHANGE);
@@ -130,7 +103,7 @@ int web_engine::json_slider_handler(struct mg_connection *conn)
array.append(data);
}
- /* add all sliders */
+ // add all sliders
for (curslider = (slider_state*)machine().osd().get_slider_list(); curslider != NULL; curslider = curslider->next)
{
INT32 curval = (*curslider->update)(machine(), curslider->arg, &tempstring, SLIDER_NOCHANGE);
@@ -154,28 +127,27 @@ int web_engine::json_slider_handler(struct mg_connection *conn)
"%s",
(int)strlen(json), json);
- return 1;
+ return MG_TRUE;
}
// This function will be called by mongoose on every new request.
int web_engine::begin_request_handler(struct mg_connection *conn)
{
- const struct mg_request_info *request_info = mg_get_request_info(conn);
- if (!strncmp(request_info->uri, "/json/",6))
+ if (!strncmp(conn->uri, "/json/",6))
{
- if (!strcmp(request_info->uri, "/json/game"))
+ if (!strcmp(conn->uri, "/json/game"))
{
return json_game_handler(conn);
}
- if (!strcmp(request_info->uri, "/json/slider"))
+ if (!strcmp(conn->uri, "/json/slider"))
{
return json_slider_handler(conn);
}
}
- else if (!strncmp(request_info->uri, "/cmd",4))
+ else if (!strncmp(conn->uri, "/cmd",4))
{
char cmd_name[64];
- get_qsvar(request_info, "name", cmd_name, sizeof(cmd_name));
+ mg_get_var(conn, "name", cmd_name, sizeof(cmd_name));
if(!strcmp(cmd_name,"softreset"))
{
@@ -199,14 +171,14 @@ int web_engine::begin_request_handler(struct mg_connection *conn)
else if(!strcmp(cmd_name,"savestate"))
{
char cmd_val[64];
- get_qsvar(request_info, "val", cmd_val, sizeof(cmd_val));
+ mg_get_var(conn, "val", cmd_val, sizeof(cmd_val));
char *filename = websanitize_statefilename(cmd_val);
m_machine->schedule_save(filename);
}
else if(!strcmp(cmd_name,"loadstate"))
{
char cmd_val[64];
- get_qsvar(request_info, "val", cmd_val, sizeof(cmd_val));
+ mg_get_var(conn, "val", cmd_val, sizeof(cmd_val));
char *filename = cmd_val;
m_machine->schedule_load(filename);
}
@@ -226,14 +198,14 @@ int web_engine::begin_request_handler(struct mg_connection *conn)
// Returning non-zero tells mongoose that our function has replied to
// the client, and mongoose should not send client any more data.
- return 1;
+ return MG_TRUE;
}
- else if (!strncmp(request_info->uri, "/slider",7))
+ else if (!strncmp(conn->uri, "/slider",7))
{
char cmd_id[64];
char cmd_val[64];
- get_qsvar(request_info, "id", cmd_id, sizeof(cmd_id));
- get_qsvar(request_info, "val", cmd_val, sizeof(cmd_val));
+ mg_get_var(conn, "id", cmd_id, sizeof(cmd_id));
+ mg_get_var(conn, "val", cmd_val, sizeof(cmd_val));
int cnt = 0;
int id = atoi(cmd_id);
const slider_state *curslider;
@@ -260,104 +232,105 @@ int web_engine::begin_request_handler(struct mg_connection *conn)
// Returning non-zero tells mongoose that our function has replied to
// the client, and mongoose should not send client any more data.
- return 1;
+ return MG_TRUE;
}
- else if (!strncmp(request_info->uri, "/screenshot.png",15))
+ else if (!strncmp(conn->uri, "/screenshot.png",15))
{
- screen_device_iterator iter(m_machine->root_device());
- screen_device *screen = iter.first();
-
- if (screen == NULL)
+ FILE *fp = (FILE *) conn->connection_param;
+ char buf[200];
+ size_t n = 0;
+ if (fp == NULL)
{
- return 0;
- }
-
- astring fname("screenshot.png");
- emu_file file(m_machine->options().snapshot_directory(), OPEN_FLAG_WRITE | OPEN_FLAG_CREATE | OPEN_FLAG_CREATE_PATHS);
- file_error filerr = file.open(fname);
+ screen_device_iterator iter(m_machine->root_device());
+ screen_device *screen = iter.first();
- if (filerr != FILERR_NONE)
- {
- return 0;
- }
+ if (screen == NULL)
+ {
+ return 0;
+ }
- m_machine->video().save_snapshot(screen, file);
- astring fullpath(file.fullpath());
- file.close();
+ astring fname("screenshot.png");
+ {
+ emu_file file(m_machine->options().snapshot_directory(), OPEN_FLAG_WRITE | OPEN_FLAG_CREATE | OPEN_FLAG_CREATE_PATHS);
+ file_error filerr = file.open(fname);
- mg_send_file(conn,fullpath);
- return 1;
- }
- return 0;
-}
+ if (filerr != FILERR_NONE)
+ {
+ return 0;
+ }
-void *web_engine::websocket_keepalive()
-{
- while(!m_exiting_core)
- {
- osd_ticks_t curtime = osd_ticks();
- if ((curtime - m_lastupdatetime) > osd_ticks_per_second() * 5)
- {
- m_lastupdatetime = curtime;
- for (simple_list_wrapper<mg_connection> *curitem = m_websockets.first(); curitem != NULL; curitem = curitem->next())
+ m_machine->video().save_snapshot(screen, file);
+ astring fullpath(file.fullpath());
+ file.close();
+ }
+
{
- int status = mg_websocket_write(curitem->object(), WEBSOCKET_OPCODE_PING, NULL, 0);
- if (status==0) m_websockets.detach(*curitem); // remove inactive clients
+ emu_file file(m_machine->options().snapshot_directory(), OPEN_FLAG_READ);
+ file_error filerr = file.open(fname);
+
+ if (filerr != FILERR_NONE)
+ {
+ return 0;
+ }
+
+ file.seek(0, SEEK_SET);
+ mg_send_header(conn, "Content-Type", "image/png");
+ mg_send_header(conn, "Cache-Control", "no-cache, no-store, must-revalidate");
+ mg_send_header(conn, "Pragma", "no-cache");
+ mg_send_header(conn, "Expires", "0");
+ do
+ {
+ n = file.read(buf, sizeof(buf));
+ mg_send_data(conn, buf, n);
+ }
+ while (n==sizeof(buf));
+ file.close();
}
}
- osd_sleep(osd_ticks_per_second()/5);
+ return MG_TRUE;
}
- return NULL;
-}
-
-//-------------------------------------------------
-// static callbacks
-//-------------------------------------------------
-static void websocket_ready_handler_static(struct mg_connection *conn)
-{
- const struct mg_request_info *request_info = mg_get_request_info(conn);
- web_engine *engine = static_cast<web_engine *>(request_info->user_data);
- engine->websocket_ready_handler(conn);
+ return 0;
}
-static int websocket_data_handler_static(struct mg_connection *conn, int flags,
- char *data, size_t data_len)
-{
- const struct mg_request_info *request_info = mg_get_request_info(conn);
- web_engine *engine = static_cast<web_engine *>(request_info->user_data);
- return engine->websocket_data_handler(conn, flags, data, data_len);
+static int ev_handler(struct mg_connection *conn, enum mg_event ev) {
+ if (ev == MG_REQUEST) {
+ if (conn->is_websocket) {
+ // This handler is called for each incoming websocket frame, one or more
+ // times for connection lifetime.
+ // Echo websocket data back to the client.
+ //const char *msg = "update_machine";
+ //mg_websocket_write(conn, 1, msg, strlen(msg));
+ return conn->content_len == 4 && !memcmp(conn->content, "exit", 4) ? MG_FALSE : MG_TRUE;
+ } else {
+ web_engine *engine = static_cast<web_engine *>(conn->server_param);
+ return engine->begin_request_handler(conn);
+ }
+ } else if (ev == MG_AUTH) {
+ return MG_TRUE;
+ } else {
+ return MG_FALSE;
+ }
}
-static int begin_request_handler_static(struct mg_connection *conn)
-{
- const struct mg_request_info *request_info = mg_get_request_info(conn);
- web_engine *engine = static_cast<web_engine *>(request_info->user_data);
- return engine->begin_request_handler(conn);
+static int iterate_callback(struct mg_connection *c, enum mg_event ev) {
+ if (ev == MG_POLL && c->is_websocket) {
+ char buf[20];
+ int len = snprintf(buf, sizeof(buf), "%lu",
+ (unsigned long) * (time_t *) c->callback_param);
+ mg_websocket_write(c, 1, buf, len);
+ }
+ return MG_TRUE;
}
-static int begin_http_error_handler_static(struct mg_connection *conn, int status)
-{
- //const struct mg_request_info *request_info = mg_get_request_info(conn);
- if (status == 404) // 404 -- File Not Found
- {
- {
- mg_printf(conn,
- "HTTP/1.1 404 Not Found\r\n"
- "Content-Type: text/plain\r\n"
- "Content-Length: 14\r\n" // Always set Content-Length
- "\r\n"
- "Nothing to do.");
- }
- }
- // Returning non-zero tells mongoose that our function has replied to
- // the client, and mongoose should not send client any more data.
- return 1;
-}
-
-static void *websocket_keepalive_static(void *thread_func_param)
-{
- web_engine *engine = static_cast<web_engine *>(thread_func_param);
- return engine->websocket_keepalive();
+static void *serve(void *server) {
+ time_t current_timer = 0, last_timer = time(NULL);
+ for (;;) mg_poll_server((struct mg_server *) server, 1000);
+ current_timer = time(NULL);
+ if (current_timer - last_timer > 0) {
+ last_timer = current_timer;
+ mg_iterate_over_connections((struct mg_server *)server, iterate_callback, &current_timer);
+ }
+ return NULL;
}
//-------------------------------------------------
@@ -367,32 +340,18 @@ static void *websocket_keepalive_static(void *thread_func_param)
web_engine::web_engine(emu_options &options)
: m_options(options),
m_machine(NULL),
- m_ctx(NULL),
+ m_server(NULL),
m_lastupdatetime(0),
m_exiting_core(false)
{
- struct mg_callbacks callbacks;
-
- // List of options. Last element must be NULL.
- const char *web_options[] = {
- "listening_ports", options.http_port(),
- "document_root", options.http_path(),
- NULL
- };
-
- // Prepare callbacks structure.
- memset(&callbacks, 0, sizeof(callbacks));
- callbacks.begin_request = begin_request_handler_static;
- callbacks.websocket_ready = websocket_ready_handler_static;
- callbacks.websocket_data = websocket_data_handler_static;
- callbacks.http_error = begin_http_error_handler_static;
-
- // Start the web server.
if (m_options.http()) {
- m_ctx = mg_start(&callbacks, this, web_options);
-
- mg_start_thread(websocket_keepalive_static, this);
+ m_server = mg_create_server(this, ev_handler);
+
+ mg_set_option(m_server, "listening_port", options.http_port());
+ mg_set_option(m_server, "document_root", options.http_path());
+
+ mg_start_thread(serve, m_server);
}
}
@@ -414,21 +373,20 @@ web_engine::~web_engine()
void web_engine::close()
{
m_exiting_core = 1;
- osd_sleep(osd_ticks_per_second()/5);
- for (simple_list_wrapper<mg_connection> *curitem = m_websockets.first(); curitem != NULL; curitem = curitem->next())
- {
- mg_websocket_write(curitem->object(), WEBSOCKET_OPCODE_CONNECTION_CLOSE, NULL, 0);
- }
- // Stop the server.
- mg_stop(m_ctx);
+ // Cleanup, and free server instance
+ mg_destroy_server(&m_server);
}
+static int websocket_callback(struct mg_connection *c, enum mg_event ev) {
+ if (c->is_websocket) {
+ const char *message = (const char *)c->callback_param;
+ mg_websocket_write(c, 1, message, strlen(message));
+ }
+ return MG_TRUE;
+}
void web_engine::push_message(const char *message)
{
- for (simple_list_wrapper<mg_connection> *curitem = m_websockets.first(); curitem != NULL; curitem = curitem->next())
- {
- int status = mg_websocket_write(curitem->object(), WEBSOCKET_OPCODE_TEXT, message, strlen(message));
- if (status==0) m_websockets.remove(*curitem); // remove inactive clients
- }
+ if (m_server!=NULL)
+ mg_iterate_over_connections(m_server, websocket_callback, (void*)message);
}
diff --git a/src/emu/webengine.h b/src/emu/webengine.h
index a30826eb92d..85b5efa8342 100644
--- a/src/emu/webengine.h
+++ b/src/emu/webengine.h
@@ -13,7 +13,7 @@
#ifndef __WEB_ENGINE_H__
#define __WEB_ENGINE_H__
-struct mg_context; // Handle for the HTTP service itself
+struct mg_server; // Handle for the HTTP server itself
struct mg_connection; // Handle for the individual connection
class web_engine
@@ -27,12 +27,7 @@ public:
void close();
void set_machine(running_machine &machine) { m_machine = &machine; }
-
- void websocket_ready_handler(struct mg_connection *conn);
- int websocket_data_handler(struct mg_connection *conn, int flags, char *data, size_t data_len);
int begin_request_handler(struct mg_connection *conn);
- int begin_http_error_handler(struct mg_connection *conn, int status);
- void *websocket_keepalive();
protected:
// getters
running_machine &machine() const { return *m_machine; }
@@ -43,10 +38,9 @@ private:
// internal state
emu_options & m_options;
running_machine * m_machine;
- struct mg_context * m_ctx;
+ struct mg_server * m_server;
osd_ticks_t m_lastupdatetime;
bool m_exiting_core;
- simple_list<simple_list_wrapper<mg_connection> > m_websockets;
};
#endif /* __web_engine_H__ */
diff --git a/src/lib/web/mongoose.c b/src/lib/web/mongoose.c
index 346c37a6d9f..9ff2b54aeec 100644
--- a/src/lib/web/mongoose.c
+++ b/src/lib/web/mongoose.c
@@ -1,863 +1,1400 @@
-// Copyright (c) 2004-2013 Sergey Lyubka
+// Copyright (c) 2004-2013 Sergey Lyubka <valenok@gmail.com>
+// Copyright (c) 2013-2014 Cesanta Software Limited
+// All rights reserved
//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
+// This library is dual-licensed: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation. For the terms of this
+// license, see <http://www.gnu.org/licenses/>.
//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
+// You are free to use this library under the terms of the GNU General
+// Public License, but WITHOUT ANY WARRANTY; without even the implied
+// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
+// Alternatively, you can license this library under a commercial
+// license, as set out in <http://cesanta.com/>.
-#define NO_SSL
-#define USE_WEBSOCKET
-
-#if defined(_WIN32)
-#define SETSOCKOPT_CAST const char *
-#else
-#define SETSOCKOPT_CAST void *
-#endif
-
-#if defined(_WIN32)
-#if !defined(_CRT_SECURE_NO_WARNINGS)
-#define _CRT_SECURE_NO_WARNINGS // Disable deprecation warning in VS2005
-#endif
+#ifdef NOEMBED_NET_SKELETON
+#include "net_skeleton.h"
#else
-#ifdef __linux__
-#define _XOPEN_SOURCE 600 // For flockfile() on Linux
-#endif
-#define _LARGEFILE_SOURCE // Enable 64-bit file offsets
-#define __STDC_FORMAT_MACROS // <inttypes.h> wants this for C++
-#define __STDC_LIMIT_MACROS // C++ wants that for INT64_MAX
-#endif
-
-#if defined (_MSC_VER)
-// conditional expression is constant: introduced by FD_SET(..)
-#pragma warning (disable : 4127)
-// non-constant aggregate initializer: issued due to missing C99 support
-#pragma warning (disable : 4204)
-#endif
+// net_skeleton start
+// Copyright (c) 2014 Cesanta Software Limited
+// All rights reserved
+//
+// This software is dual-licensed: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation. For the terms of this
+// license, see <http://www.gnu.org/licenses/>.
+//
+// You are free to use this software under the terms of the GNU General
+// Public License, but WITHOUT ANY WARRANTY; without even the implied
+// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// Alternatively, you can license this software under a commercial
+// license, as set out in <http://cesanta.com/>.
+
+#ifndef NS_SKELETON_HEADER_INCLUDED
+#define NS_SKELETON_HEADER_INCLUDED
+
+#define NS_SKELETON_VERSION "1.1"
+
+#undef UNICODE // Use ANSI WinAPI functions
+#undef _UNICODE // Use multibyte encoding on Windows
+#define _MBCS // Use multibyte encoding on Windows
+#define _INTEGRAL_MAX_BITS 64 // Enable _stati64() on Windows
+#define _CRT_SECURE_NO_WARNINGS // Disable deprecation warning in VS2005+
+#undef WIN32_LEAN_AND_MEAN // Let windows.h always include winsock2.h
+#define _XOPEN_SOURCE 600 // For flockfile() on Linux
+#define __STDC_FORMAT_MACROS // <inttypes.h> wants this for C++
+#define __STDC_LIMIT_MACROS // C++ wants that for INT64_MAX
+#define _LARGEFILE_SOURCE // Enable fseeko() and ftello() functions
+#define _FILE_OFFSET_BITS 64 // Enable 64-bit file offsets
-// Disable WIN32_LEAN_AND_MEAN.
-// This makes windows.h always include winsock2.h
-#ifdef WIN32_LEAN_AND_MEAN
-#undef WIN32_LEAN_AND_MEAN
+#ifdef _MSC_VER
+#pragma warning (disable : 4127) // FD_SET() emits warning, disable it
+#pragma warning (disable : 4204) // missing c99 support
#endif
-#if defined(__SYMBIAN32__)
-#define NO_SSL // SSL is not supported
-#define NO_CGI // CGI is not supported
-#define PATH_MAX FILENAME_MAX
-#endif // __SYMBIAN32__
-
-#ifndef _WIN32_WCE // Some ANSI #includes are not available on Windows CE
#include <sys/types.h>
#include <sys/stat.h>
+#include <assert.h>
#include <errno.h>
-#include <signal.h>
#include <fcntl.h>
-#endif // !_WIN32_WCE
-
-#include <time.h>
-#include <stdlib.h>
#include <stdarg.h>
-#include <assert.h>
-#include <string.h>
-#include <ctype.h>
-#include <limits.h>
#include <stddef.h>
#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <signal.h>
-#if defined(_WIN32) && !defined(__SYMBIAN32__) // Windows specific
-#undef _WIN32_WINNT
-#define _WIN32_WINNT 0x0400 // To make it link in VS2005
-#include <windows.h>
-
-#ifndef PATH_MAX
-#define PATH_MAX MAX_PATH
+#ifdef _WIN32
+#ifdef _MSC_VER
+#pragma comment(lib, "ws2_32.lib") // Linking with winsock library
#endif
-
-#ifndef _WIN32_WCE
+#include <windows.h>
#include <process.h>
-#include <direct.h>
-#include <io.h>
-#else // _WIN32_WCE
-#define NO_CGI // WinCE has no pipes
-
-typedef long off_t;
-
-#define errno GetLastError()
-#define strerror(x) _ultoa(x, (char *) _alloca(sizeof(x) *3 ), 10)
-#endif // _WIN32_WCE
-
-#define MAKEUQUAD(lo, hi) ((uint64_t)(((uint32_t)(lo)) | \
- ((uint64_t)((uint32_t)(hi))) << 32))
-#define RATE_DIFF 10000000 // 100 nsecs
-#define EPOCH_DIFF MAKEUQUAD(0xd53e8000, 0x019db1de)
-#define SYS2UNIX_TIME(lo, hi) \
- (time_t) ((MAKEUQUAD((lo), (hi)) - EPOCH_DIFF) / RATE_DIFF)
-
-// Visual Studio 6 does not know __func__ or __FUNCTION__
-// The rest of MS compilers use __FUNCTION__, not C99 __func__
-// Also use _strtoui64 on modern M$ compilers
-#if defined(_MSC_VER) && _MSC_VER < 1300
+#ifndef EINPROGRESS
+#define EINPROGRESS WSAEINPROGRESS
+#endif
+#ifndef EWOULDBLOCK
+#define EWOULDBLOCK WSAEWOULDBLOCK
+#endif
+#ifndef __func__
#define STRX(x) #x
#define STR(x) STRX(x)
#define __func__ __FILE__ ":" STR(__LINE__)
-#define strtoull(x, y, z) (unsigned __int64) _atoi64(x)
-#define strtoll(x, y, z) _atoi64(x)
-#else
-#define __func__ __FUNCTION__
-#define strtoull(x, y, z) _strtoui64(x, y, z)
-#define strtoll(x, y, z) _strtoi64(x, y, z)
-#endif // _MSC_VER
-
-#define ERRNO GetLastError()
-#define NO_SOCKLEN_T
-#define SSL_LIB "ssleay32.dll"
-#define CRYPTO_LIB "libeay32.dll"
-#define O_NONBLOCK 0
-#if !defined(EWOULDBLOCK)
-#define EWOULDBLOCK WSAEWOULDBLOCK
-#endif // !EWOULDBLOCK
-#define _POSIX_
-#define INT64_FMT "I64d"
-
-#define WINCDECL __cdecl
-#define SHUT_WR 1
+#endif
+#ifndef va_copy
+#define va_copy(x,y) x = y
+#endif // MINGW #defines va_copy
#define snprintf _snprintf
#define vsnprintf _vsnprintf
-#define mg_sleep(x) Sleep(x)
-
-#define pipe(x) _pipe(x, MG_BUF_LEN, _O_BINARY)
-#ifndef popen
-#define popen(x, y) _popen(x, y)
-#endif
-#ifndef pclose
-#define pclose(x) _pclose(x)
-#endif
-#define close(x) _close(x)
-#define dlsym(x,y) GetProcAddress((HINSTANCE) (x), (y))
-#define RTLD_LAZY 0
-#define fseeko(x, y, z) _lseeki64(_fileno(x), (y), (z))
-#define fdopen(x, y) _fdopen((x), (y))
-#define write(x, y, z) _write((x), (y), (unsigned) z)
-#define read(x, y, z) _read((x), (y), (unsigned) z)
-#define flockfile(x) EnterCriticalSection(&global_log_file_lock)
-#define funlockfile(x) LeaveCriticalSection(&global_log_file_lock)
#define sleep(x) Sleep((x) * 1000)
-
-#if !defined(va_copy)
-#define va_copy(x, y) x = y
-#endif // !va_copy MINGW #defines va_copy
-
-#if !defined(fileno)
-#define fileno(x) _fileno(x)
-#endif // !fileno MINGW #defines fileno
-
-typedef HANDLE pthread_mutex_t;
-typedef struct {HANDLE signal, broadcast;} pthread_cond_t;
-typedef DWORD pthread_t;
-#define pid_t HANDLE // MINGW typedefs pid_t to int. Using #define here.
-
-static int pthread_mutex_lock(pthread_mutex_t *);
-static int pthread_mutex_unlock(pthread_mutex_t *);
-static void to_unicode(const char *path, wchar_t *wbuf, size_t wbuf_len);
-struct file;
-static char *mg_fgets(char *buf, size_t size, struct file *filep, char **p);
-
-#if defined(HAVE_STDINT)
-#include <stdint.h>
-#else
-typedef unsigned int uint32_t;
-typedef unsigned short uint16_t;
+#define to64(x) _atoi64(x)
+typedef int socklen_t;
+typedef unsigned char uint8_t;
+typedef unsigned int uint32_t;
+typedef unsigned short uint16_t;
typedef unsigned __int64 uint64_t;
typedef __int64 int64_t;
-#if defined(__GNUC__) || defined(_MSC_VER)
-#define U64(val) val##ULL
+typedef SOCKET sock_t;
#else
-#define U64(val) val
+#include <errno.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <pthread.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <arpa/inet.h> // For inet_pton() when NS_ENABLE_IPV6 is defined
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <sys/select.h>
+#define closesocket(x) close(x)
+#define __cdecl
+#define INVALID_SOCKET (-1)
+#define to64(x) strtoll(x, NULL, 10)
+typedef int sock_t;
#endif
-#define INT64_MAX U64(9223372036854775807)
-#endif // HAVE_STDINT
-
-// POSIX dirent interface
-struct dirent {
- char d_name[PATH_MAX];
-};
-
-typedef struct DIR {
- HANDLE handle;
- WIN32_FIND_DATAW info;
- struct dirent result;
-} DIR;
-
-// Mark required libraries
-#ifdef _MSC_VER
-#pragma comment(lib, "Ws2_32.lib")
+#ifdef NS_ENABLE_DEBUG
+#define DBG(x) do { printf("%-20s ", __func__); printf x; putchar('\n'); \
+ fflush(stdout); } while(0)
+#else
+#define DBG(x)
#endif
-#else // UNIX specific
-#include <sys/wait.h>
-#include <sys/socket.h>
-#ifdef HAVE_POLL
-#include <sys/poll.h>
-#endif
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <sys/time.h>
-#include <stdint.h>
-#include <inttypes.h>
-#include <netdb.h>
+#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
-#include <pwd.h>
-#include <unistd.h>
-#include <dirent.h>
-#if !defined(NO_SSL_DL) && !defined(NO_SSL)
-#include <dlfcn.h>
+#ifdef NS_ENABLE_SSL
+#ifdef __APPLE__
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#endif
-#include <pthread.h>
-#if defined(__MACH__)
-#define SSL_LIB "libssl.dylib"
-#define CRYPTO_LIB "libcrypto.dylib"
+#include <openssl/ssl.h>
#else
-#if !defined(SSL_LIB)
-#define SSL_LIB "libssl.so"
+typedef void *SSL;
+typedef void *SSL_CTX;
#endif
-#if !defined(CRYPTO_LIB)
-#define CRYPTO_LIB "libcrypto.so"
-#endif
-#endif
-#ifndef O_BINARY
-#define O_BINARY 0
-#endif // O_BINARY
-#define closesocket(a) close(a)
-#define mg_mkdir(x, y) mkdir(x, y)
-#define mg_remove(x) remove(x)
-#define mg_sleep(x) usleep((x) * 1000)
-#define ERRNO errno
-#define INVALID_SOCKET (-1)
-#define INT64_FMT PRId64
-typedef int SOCKET;
-#define WINCDECL
-#endif // End of Windows and UNIX specific includes
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
-#ifdef __OS2__
-#define NO_SOCKLEN_T
-#define SHUT_WR 1
+union socket_address {
+ struct sockaddr sa;
+ struct sockaddr_in sin;
+#ifdef NS_ENABLE_IPV6
+ struct sockaddr_in6 sin6;
#endif
-
-#ifndef HAVE_POLL
-struct pollfd {
- int fd;
- short events;
- short revents;
};
-#define POLLIN 1
-#endif
-#include "mongoose.h"
+// IO buffers interface
+struct iobuf {
+ char *buf;
+ size_t len;
+ size_t size;
+};
-#define MONGOOSE_VERSION "3.8"
-#define PASSWORDS_FILE_NAME ".htpasswd"
-#define CGI_ENVIRONMENT_SIZE 4096
-#define MAX_CGI_ENVIR_VARS 64
-#define MG_BUF_LEN 8192
-#define MAX_REQUEST_SIZE 16384
-#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
+void iobuf_init(struct iobuf *, size_t initial_size);
+void iobuf_free(struct iobuf *);
+size_t iobuf_append(struct iobuf *, const void *data, size_t data_size);
+void iobuf_remove(struct iobuf *, size_t data_size);
+
+// Net skeleton interface
+// Events. Meaning of event parameter (evp) is given in the comment.
+enum ns_event {
+ NS_POLL, // Sent to each connection on each call to ns_server_poll()
+ NS_ACCEPT, // New connection accept()-ed. union socket_address *remote_addr
+ NS_CONNECT, // connect() succeeded or failed. int *success_status
+ NS_RECV, // Data has benn received. int *num_bytes
+ NS_SEND, // Data has been written to a socket. int *num_bytes
+ NS_CLOSE // Connection is closed. NULL
+};
-#ifdef _WIN32
-static CRITICAL_SECTION global_log_file_lock;
-#if !defined(NO_SSL)
-static pthread_t pthread_self(void) {
- return GetCurrentThreadId();
-}
-#endif
-#endif // _WIN32
+// Callback function (event handler) prototype, must be defined by user.
+// Net skeleton will call event handler, passing events defined above.
+struct ns_connection;
+typedef void (*ns_callback_t)(struct ns_connection *, enum ns_event, void *evp);
+
+struct ns_server {
+ void *server_data;
+ sock_t listening_sock;
+ struct ns_connection *active_connections;
+ ns_callback_t callback;
+ SSL_CTX *ssl_ctx;
+ SSL_CTX *client_ssl_ctx;
+ sock_t ctl[2];
+};
-#ifdef DEBUG_TRACE
-#undef DEBUG_TRACE
-#define DEBUG_TRACE(x)
-#else
-#if defined(DEBUG)
-#define DEBUG_TRACE(x) do { \
- flockfile(stdout); \
- printf("*** %lu.%p.%s.%d: ", \
- (unsigned long) time(NULL), (void *) pthread_self(), \
- __func__, __LINE__); \
- printf x; \
- putchar('\n'); \
- fflush(stdout); \
- funlockfile(stdout); \
-} while (0)
-#else
-#define DEBUG_TRACE(x)
-#endif // DEBUG
-#endif // DEBUG_TRACE
+struct ns_connection {
+ struct ns_connection *prev, *next;
+ struct ns_server *server;
+ sock_t sock;
+ union socket_address sa;
+ struct iobuf recv_iobuf;
+ struct iobuf send_iobuf;
+ SSL *ssl;
+ void *connection_data;
+ time_t last_io_time;
+ unsigned int flags;
+#define NSF_FINISHED_SENDING_DATA (1 << 0)
+#define NSF_BUFFER_BUT_DONT_SEND (1 << 1)
+#define NSF_SSL_HANDSHAKE_DONE (1 << 2)
+#define NSF_CONNECTING (1 << 3)
+#define NSF_CLOSE_IMMEDIATELY (1 << 4)
+#define NSF_ACCEPTED (1 << 5)
+#define NSF_WANT_READ (1 << 6)
+#define NSF_WANT_WRITE (1 << 7)
+
+#define NSF_USER_1 (1 << 26)
+#define NSF_USER_2 (1 << 27)
+#define NSF_USER_3 (1 << 28)
+#define NSF_USER_4 (1 << 29)
+#define NSF_USER_5 (1 << 30)
+#define NSF_USER_6 (1 << 31)
+};
-// Darwin prior to 7.0 and Win32 do not have socklen_t
-#ifdef NO_SOCKLEN_T
-typedef int socklen_t;
-#endif // NO_SOCKLEN_T
-#define _DARWIN_UNLIMITED_SELECT
+void ns_server_init(struct ns_server *, void *server_data, ns_callback_t);
+void ns_server_free(struct ns_server *);
+int ns_server_poll(struct ns_server *, int milli);
+void ns_server_wakeup(struct ns_server *);
+void ns_server_wakeup_ex(struct ns_server *, ns_callback_t, void *, size_t);
+void ns_iterate(struct ns_server *, ns_callback_t cb, void *param);
+struct ns_connection *ns_add_sock(struct ns_server *, sock_t sock, void *p);
+
+int ns_bind(struct ns_server *, const char *addr);
+int ns_set_ssl_cert(struct ns_server *, const char *ssl_cert);
+int ns_set_ssl_ca_cert(struct ns_server *, const char *ssl_ca_cert);
+struct ns_connection *ns_connect(struct ns_server *, const char *host,
+ int port, int ssl, void *connection_param);
+
+int ns_send(struct ns_connection *, const void *buf, int len);
+int ns_printf(struct ns_connection *, const char *fmt, ...);
+int ns_vprintf(struct ns_connection *, const char *fmt, va_list ap);
+
+// Utility functions
+void *ns_start_thread(void *(*f)(void *), void *p);
+int ns_socketpair(sock_t [2]);
+int ns_socketpair2(sock_t [2], int sock_type); // SOCK_STREAM or SOCK_DGRAM
+void ns_set_close_on_exec(sock_t);
+void ns_sock_to_str(sock_t sock, char *buf, size_t len, int flags);
+int ns_hexdump(const void *buf, int len, char *dst, int dst_len);
+
+#ifdef __cplusplus
+}
+#endif // __cplusplus
+
+#endif // NS_SKELETON_HEADER_INCLUDED
+// Copyright (c) 2014 Cesanta Software Limited
+// All rights reserved
+//
+// This software is dual-licensed: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation. For the terms of this
+// license, see <http://www.gnu.org/licenses/>.
+//
+// You are free to use this software under the terms of the GNU General
+// Public License, but WITHOUT ANY WARRANTY; without even the implied
+// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// Alternatively, you can license this software under a commercial
+// license, as set out in <http://cesanta.com/>.
-#define IP_ADDR_STR_LEN 50 // IPv6 hex string is 46 chars
-#if !defined(MSG_NOSIGNAL)
-#define MSG_NOSIGNAL 0
+#ifndef NS_MALLOC
+#define NS_MALLOC malloc
#endif
-#if !defined(SOMAXCONN)
-#define SOMAXCONN 100
+#ifndef NS_REALLOC
+#define NS_REALLOC realloc
#endif
-#if !defined(PATH_MAX)
-#define PATH_MAX 4096
+#ifndef NS_FREE
+#define NS_FREE free
#endif
-static const char *http_500_error = "Internal Server Error";
-
-#if defined(NO_SSL_DL)
-#include <openssl/ssl.h>
-#else
-// SSL loaded dynamically from DLL.
-// I put the prototypes here to be independent from OpenSSL source installation.
-typedef struct ssl_st SSL;
-typedef struct ssl_method_st SSL_METHOD;
-typedef struct ssl_ctx_st SSL_CTX;
-
-struct ssl_func {
- const char *name; // SSL function name
- void (*ptr)(void); // Function pointer
+struct ctl_msg {
+ ns_callback_t callback;
+ char message[1024 * 8];
};
-#define SSL_free (* (void (*)(SSL *)) ssl_sw[0].ptr)
-#define SSL_accept (* (int (*)(SSL *)) ssl_sw[1].ptr)
-#define SSL_connect (* (int (*)(SSL *)) ssl_sw[2].ptr)
-#define SSL_read (* (int (*)(SSL *, void *, int)) ssl_sw[3].ptr)
-#define SSL_write (* (int (*)(SSL *, const void *,int)) ssl_sw[4].ptr)
-#define SSL_get_error (* (int (*)(SSL *, int)) ssl_sw[5].ptr)
-#define SSL_set_fd (* (int (*)(SSL *, SOCKET)) ssl_sw[6].ptr)
-#define SSL_new (* (SSL * (*)(SSL_CTX *)) ssl_sw[7].ptr)
-#define SSL_CTX_new (* (SSL_CTX * (*)(SSL_METHOD *)) ssl_sw[8].ptr)
-#define SSLv23_server_method (* (SSL_METHOD * (*)(void)) ssl_sw[9].ptr)
-#define SSL_library_init (* (int (*)(void)) ssl_sw[10].ptr)
-#define SSL_CTX_use_PrivateKey_file (* (int (*)(SSL_CTX *, \
- const char *, int)) ssl_sw[11].ptr)
-#define SSL_CTX_use_certificate_file (* (int (*)(SSL_CTX *, \
- const char *, int)) ssl_sw[12].ptr)
-#define SSL_CTX_set_default_passwd_cb \
- (* (void (*)(SSL_CTX *, mg_callback_t)) ssl_sw[13].ptr)
-#define SSL_CTX_free (* (void (*)(SSL_CTX *)) ssl_sw[14].ptr)
-#define SSL_load_error_strings (* (void (*)(void)) ssl_sw[15].ptr)
-#define SSL_CTX_use_certificate_chain_file \
- (* (int (*)(SSL_CTX *, const char *)) ssl_sw[16].ptr)
-#define SSLv23_client_method (* (SSL_METHOD * (*)(void)) ssl_sw[17].ptr)
-#define SSL_pending (* (int (*)(SSL *)) ssl_sw[18].ptr)
-#define SSL_CTX_set_verify (* (void (*)(SSL_CTX *, int, int)) ssl_sw[19].ptr)
-#define SSL_shutdown (* (int (*)(SSL *)) ssl_sw[20].ptr)
-
-#define CRYPTO_num_locks (* (int (*)(void)) crypto_sw[0].ptr)
-#define CRYPTO_set_locking_callback \
- (* (void (*)(void (*)(int, int, const char *, int))) crypto_sw[1].ptr)
-#define CRYPTO_set_id_callback \
- (* (void (*)(unsigned long (*)(void))) crypto_sw[2].ptr)
-#define ERR_get_error (* (unsigned long (*)(void)) crypto_sw[3].ptr)
-#define ERR_error_string (* (char * (*)(unsigned long,char *)) crypto_sw[4].ptr)
-
-// set_ssl_option() function updates this array.
-// It loads SSL library dynamically and changes NULLs to the actual addresses
-// of respective functions. The macros above (like SSL_connect()) are really
-// just calling these functions indirectly via the pointer.
-static struct ssl_func ssl_sw[] = {
- {"SSL_free", NULL},
- {"SSL_accept", NULL},
- {"SSL_connect", NULL},
- {"SSL_read", NULL},
- {"SSL_write", NULL},
- {"SSL_get_error", NULL},
- {"SSL_set_fd", NULL},
- {"SSL_new", NULL},
- {"SSL_CTX_new", NULL},
- {"SSLv23_server_method", NULL},
- {"SSL_library_init", NULL},
- {"SSL_CTX_use_PrivateKey_file", NULL},
- {"SSL_CTX_use_certificate_file",NULL},
- {"SSL_CTX_set_default_passwd_cb",NULL},
- {"SSL_CTX_free", NULL},
- {"SSL_load_error_strings", NULL},
- {"SSL_CTX_use_certificate_chain_file", NULL},
- {"SSLv23_client_method", NULL},
- {"SSL_pending", NULL},
- {"SSL_CTX_set_verify", NULL},
- {"SSL_shutdown", NULL},
- {NULL, NULL}
-};
+void iobuf_init(struct iobuf *iobuf, size_t size) {
+ iobuf->len = iobuf->size = 0;
+ iobuf->buf = NULL;
-// Similar array as ssl_sw. These functions could be located in different lib.
-#if !defined(NO_SSL)
-static struct ssl_func crypto_sw[] = {
- {"CRYPTO_num_locks", NULL},
- {"CRYPTO_set_locking_callback", NULL},
- {"CRYPTO_set_id_callback", NULL},
- {"ERR_get_error", NULL},
- {"ERR_error_string", NULL},
- {NULL, NULL}
-};
-#endif // NO_SSL
-#endif // NO_SSL_DL
+ if (size > 0 && (iobuf->buf = (char *) NS_MALLOC(size)) != NULL) {
+ iobuf->size = size;
+ }
+}
-static const char *month_names[] = {
- "Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
-};
+void iobuf_free(struct iobuf *iobuf) {
+ if (iobuf != NULL) {
+ if (iobuf->buf != NULL) NS_FREE(iobuf->buf);
+ iobuf_init(iobuf, 0);
+ }
+}
-// Unified socket address. For IPv6 support, add IPv6 address structure
-// in the union u.
-union usa {
- struct sockaddr sa;
- struct sockaddr_in sin;
-#if defined(USE_IPV6)
- struct sockaddr_in6 sin6;
-#endif
-};
+size_t iobuf_append(struct iobuf *io, const void *buf, size_t len) {
+ char *p = NULL;
-// Describes a string (chunk of memory).
-struct vec {
- const char *ptr;
- size_t len;
-};
+ assert(io != NULL);
+ assert(io->len <= io->size);
-struct file {
- int is_directory;
- time_t modification_time;
- int64_t size;
- FILE *fp;
- const char *membuf; // Non-NULL if file data is in memory
- // set to 1 if the content is gzipped
- // in which case we need a content-encoding: gzip header
- int gzipped;
-};
-#define STRUCT_FILE_INITIALIZER {0, 0, 0, NULL, NULL, 0}
-
-// Describes listening socket, or socket which was accept()-ed by the master
-// thread and queued for future handling by the worker thread.
-struct socket {
- SOCKET sock; // Listening socket
- union usa lsa; // Local socket address
- union usa rsa; // Remote socket address
- unsigned is_ssl:1; // Is port SSL-ed
- unsigned ssl_redir:1; // Is port supposed to redirect everything to SSL port
-};
+ if (len <= 0) {
+ } else if (io->len + len <= io->size) {
+ memcpy(io->buf + io->len, buf, len);
+ io->len += len;
+ } else if ((p = (char *) NS_REALLOC(io->buf, io->len + len)) != NULL) {
+ io->buf = p;
+ memcpy(io->buf + io->len, buf, len);
+ io->len += len;
+ io->size = io->len;
+ } else {
+ len = 0;
+ }
-// NOTE(lsm): this enum shoulds be in sync with the config_options below.
-enum {
- CGI_EXTENSIONS, CGI_ENVIRONMENT, PUT_DELETE_PASSWORDS_FILE, CGI_INTERPRETER,
- PROTECT_URI, AUTHENTICATION_DOMAIN, SSI_EXTENSIONS, THROTTLE,
- ACCESS_LOG_FILE, ENABLE_DIRECTORY_LISTING, ERROR_LOG_FILE,
- GLOBAL_PASSWORDS_FILE, INDEX_FILES, ENABLE_KEEP_ALIVE, ACCESS_CONTROL_LIST,
- EXTRA_MIME_TYPES, LISTENING_PORTS, DOCUMENT_ROOT, SSL_CERTIFICATE,
- NUM_THREADS, RUN_AS_USER, REWRITE, HIDE_FILES, REQUEST_TIMEOUT,
- NUM_OPTIONS
-};
+ return len;
+}
-static const char *config_options[] = {
- "cgi_pattern", "**.cgi$|**.pl$|**.php$",
- "cgi_environment", NULL,
- "put_delete_auth_file", NULL,
- "cgi_interpreter", NULL,
- "protect_uri", NULL,
- "authentication_domain", "mydomain.com",
- "ssi_pattern", "**.shtml$|**.shtm$",
- "throttle", NULL,
- "access_log_file", NULL,
- "enable_directory_listing", "yes",
- "error_log_file", NULL,
- "global_auth_file", NULL,
- "index_files",
- "index.html,index.htm,index.cgi,index.shtml,index.php,index.lp",
- "enable_keep_alive", "no",
- "access_control_list", NULL,
- "extra_mime_types", NULL,
- "listening_ports", "8080",
- "document_root", ".",
- "ssl_certificate", NULL,
- "num_threads", "50",
- "run_as_user", NULL,
- "url_rewrite_patterns", NULL,
- "hide_files_patterns", NULL,
- "request_timeout_ms", "30000",
- NULL
-};
+void iobuf_remove(struct iobuf *io, size_t n) {
+ if (n > 0 && n <= io->len) {
+ memmove(io->buf, io->buf + n, io->len - n);
+ io->len -= n;
+ }
+}
-struct mg_context {
- volatile int stop_flag; // Should we stop event loop
- SSL_CTX *ssl_ctx; // SSL context
- char *config[NUM_OPTIONS]; // Mongoose configuration parameters
- struct mg_callbacks callbacks; // User-defined callback function
- void *user_data; // User-defined data
-
- struct socket *listening_sockets;
- int num_listening_sockets;
-
- volatile int num_threads; // Number of threads
- pthread_mutex_t mutex; // Protects (max|num)_threads
- pthread_cond_t cond; // Condvar for tracking workers terminations
-
- struct socket queue[20]; // Accepted sockets
- volatile int sq_head; // Head of the socket queue
- volatile int sq_tail; // Tail of the socket queue
- pthread_cond_t sq_full; // Signaled when socket is produced
- pthread_cond_t sq_empty; // Signaled when socket is consumed
-};
+#ifndef NS_DISABLE_THREADS
+void *ns_start_thread(void *(*f)(void *), void *p) {
+#ifdef _WIN32
+ return (void *) _beginthread((void (__cdecl *)(void *)) f, 0, p);
+#else
+ pthread_t thread_id = (pthread_t) 0;
+ pthread_attr_t attr;
-struct mg_connection {
- struct mg_request_info request_info;
- struct mg_context *ctx;
- SSL *ssl; // SSL descriptor
- SSL_CTX *client_ssl_ctx; // SSL context for client connections
- struct socket client; // Connected client
- time_t birth_time; // Time when request was received
- int64_t num_bytes_sent; // Total bytes sent to client
- int64_t content_len; // Content-Length header value
- int64_t consumed_content; // How many bytes of content have been read
- char *buf; // Buffer for received data
- char *path_info; // PATH_INFO part of the URL
- int must_close; // 1 if connection must be closed
- int buf_size; // Buffer size
- int request_len; // Size of the request + headers in a buffer
- int data_len; // Total size of data in a buffer
- int status_code; // HTTP reply status code, e.g. 200
- int throttle; // Throttling, bytes/sec. <= 0 means no throttle
- time_t last_throttle_time; // Last time throttled data was sent
- int64_t last_throttle_bytes;// Bytes sent this second
-};
+ (void) pthread_attr_init(&attr);
+ (void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
-// Directory entry
-struct de {
- struct mg_connection *conn;
- char *file_name;
- struct file file;
-};
+#if NS_STACK_SIZE > 1
+ (void) pthread_attr_setstacksize(&attr, NS_STACK_SIZE);
+#endif
-const char **mg_get_valid_option_names(void) {
- return config_options;
+ pthread_create(&thread_id, &attr, f, p);
+ pthread_attr_destroy(&attr);
+
+ return (void *) thread_id;
+#endif
}
+#endif // NS_DISABLE_THREADS
-static int is_file_in_memory(struct mg_connection *conn, const char *path,
- struct file *filep) {
- size_t size = 0;
- if ((filep->membuf = conn->ctx->callbacks.open_file == NULL ? NULL :
- conn->ctx->callbacks.open_file(conn, path, &size)) != NULL) {
- // NOTE: override filep->size only on success. Otherwise, it might break
- // constructs like if (!mg_stat() || !mg_fopen()) ...
- filep->size = size;
- }
- return filep->membuf != NULL;
+static void ns_add_conn(struct ns_server *server, struct ns_connection *c) {
+ c->next = server->active_connections;
+ server->active_connections = c;
+ c->prev = NULL;
+ if (c->next != NULL) c->next->prev = c;
}
-static int is_file_opened(const struct file *filep) {
- return filep->membuf != NULL || filep->fp != NULL;
+static void ns_remove_conn(struct ns_connection *conn) {
+ if (conn->prev == NULL) conn->server->active_connections = conn->next;
+ if (conn->prev) conn->prev->next = conn->next;
+ if (conn->next) conn->next->prev = conn->prev;
}
-static int mg_fopen(struct mg_connection *conn, const char *path,
- const char *mode, struct file *filep) {
- if (!is_file_in_memory(conn, path, filep)) {
-#ifdef _WIN32
- wchar_t wbuf[PATH_MAX], wmode[20];
- to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
- MultiByteToWideChar(CP_UTF8, 0, mode, -1, wmode, ARRAY_SIZE(wmode));
- filep->fp = _wfopen(wbuf, wmode);
-#else
- filep->fp = fopen(path, mode);
+// Print message to buffer. If buffer is large enough to hold the message,
+// return buffer. If buffer is to small, allocate large enough buffer on heap,
+// and return allocated buffer.
+static int ns_avprintf(char **buf, size_t size, const char *fmt, va_list ap) {
+ va_list ap_copy;
+ int len;
+
+ va_copy(ap_copy, ap);
+ len = vsnprintf(*buf, size, fmt, ap_copy);
+ va_end(ap_copy);
+
+ if (len < 0) {
+ // eCos and Windows are not standard-compliant and return -1 when
+ // the buffer is too small. Keep allocating larger buffers until we
+ // succeed or out of memory.
+ *buf = NULL;
+ while (len < 0) {
+ if (*buf) free(*buf);
+ size *= 2;
+ if ((*buf = (char *) NS_MALLOC(size)) == NULL) break;
+ va_copy(ap_copy, ap);
+ len = vsnprintf(*buf, size, fmt, ap_copy);
+ va_end(ap_copy);
+ }
+ } else if (len > (int) size) {
+ // Standard-compliant code path. Allocate a buffer that is large enough.
+ if ((*buf = (char *) NS_MALLOC(len + 1)) == NULL) {
+ len = -1;
+ } else {
+ va_copy(ap_copy, ap);
+ len = vsnprintf(*buf, len + 1, fmt, ap_copy);
+ va_end(ap_copy);
+ }
+ }
+
+ return len;
+}
+
+int ns_vprintf(struct ns_connection *conn, const char *fmt, va_list ap) {
+ char mem[2000], *buf = mem;
+ int len;
+
+ if ((len = ns_avprintf(&buf, sizeof(mem), fmt, ap)) > 0) {
+ iobuf_append(&conn->send_iobuf, buf, len);
+ }
+ if (buf != mem && buf != NULL) {
+ free(buf);
+ }
+
+ return len;
+}
+
+int ns_printf(struct ns_connection *conn, const char *fmt, ...) {
+ int len;
+ va_list ap;
+ va_start(ap, fmt);
+ len = ns_vprintf(conn, fmt, ap);
+ va_end(ap);
+ return len;
+}
+
+static void ns_call(struct ns_connection *conn, enum ns_event ev, void *p) {
+ if (conn->server->callback) conn->server->callback(conn, ev, p);
+}
+
+static void ns_close_conn(struct ns_connection *conn) {
+ DBG(("%p %d", conn, conn->flags));
+ ns_call(conn, NS_CLOSE, NULL);
+ ns_remove_conn(conn);
+ closesocket(conn->sock);
+ iobuf_free(&conn->recv_iobuf);
+ iobuf_free(&conn->send_iobuf);
+#ifdef NS_ENABLE_SSL
+ if (conn->ssl != NULL) {
+ SSL_free(conn->ssl);
+ }
#endif
- }
-
- return is_file_opened(filep);
+ NS_FREE(conn);
}
-static void mg_fclose(struct file *filep) {
- if (filep != NULL && filep->fp != NULL) {
- fclose(filep->fp);
- }
+void ns_set_close_on_exec(sock_t sock) {
+#ifdef _WIN32
+ (void) SetHandleInformation((HANDLE) sock, HANDLE_FLAG_INHERIT, 0);
+#else
+ fcntl(sock, F_SETFD, FD_CLOEXEC);
+#endif
}
-static int get_option_index(const char *name) {
- int i;
-
- for (i = 0; config_options[i * 2] != NULL; i++) {
- if (strcmp(config_options[i * 2], name) == 0) {
- return i;
- }
- }
- return -1;
-}
-
-const char *mg_get_option(const struct mg_context *ctx, const char *name) {
- int i;
- if ((i = get_option_index(name)) == -1) {
- return NULL;
- } else if (ctx->config[i] == NULL) {
- return "";
- } else {
- return ctx->config[i];
- }
-}
-
-static void sockaddr_to_string(char *buf, size_t len,
- const union usa *usa) {
- buf[0] = '\0';
-#if defined(USE_IPV6)
- inet_ntop(usa->sa.sa_family, usa->sa.sa_family == AF_INET ?
- (void *) &usa->sin.sin_addr :
- (void *) &usa->sin6.sin6_addr, buf, len);
-#elif defined(_WIN32)
- // Only Windoze Vista (and newer) have inet_ntop()
- strncpy(buf, inet_ntoa(usa->sin.sin_addr), len);
+static void ns_set_non_blocking_mode(sock_t sock) {
+#ifdef _WIN32
+ unsigned long on = 1;
+ ioctlsocket(sock, FIONBIO, &on);
#else
- inet_ntop(usa->sa.sa_family, (void *) &usa->sin.sin_addr, buf, len);
+ int flags = fcntl(sock, F_GETFL, 0);
+ fcntl(sock, F_SETFL, flags | O_NONBLOCK);
#endif
}
-static void cry(struct mg_connection *conn,
- PRINTF_FORMAT_STRING(const char *fmt), ...) PRINTF_ARGS(2, 3);
-
-// Print error message to the opened error log stream.
-static void cry(struct mg_connection *conn, const char *fmt, ...) {
- char buf[MG_BUF_LEN], src_addr[IP_ADDR_STR_LEN];
- va_list ap;
- FILE *fp;
- time_t timestamp;
+#ifndef NS_DISABLE_SOCKETPAIR
+int ns_socketpair2(sock_t sp[2], int sock_type) {
+ union socket_address sa;
+ sock_t sock;
+ socklen_t len = sizeof(sa.sin);
+ int ret = 0;
+
+ sp[0] = sp[1] = INVALID_SOCKET;
+
+ (void) memset(&sa, 0, sizeof(sa));
+ sa.sin.sin_family = AF_INET;
+ sa.sin.sin_port = htons(0);
+ sa.sin.sin_addr.s_addr = htonl(0x7f000001);
+
+ if ((sock = socket(AF_INET, sock_type, 0)) != INVALID_SOCKET &&
+ !bind(sock, &sa.sa, len) &&
+ (sock_type == SOCK_DGRAM || !listen(sock, 1)) &&
+ !getsockname(sock, &sa.sa, &len) &&
+ (sp[0] = socket(AF_INET, sock_type, 0)) != INVALID_SOCKET &&
+ !connect(sp[0], &sa.sa, len) &&
+ (sock_type == SOCK_STREAM ||
+ (!getsockname(sp[0], &sa.sa, &len) && !connect(sock, &sa.sa, len))) &&
+ (sp[1] = (sock_type == SOCK_DGRAM ? sock :
+ accept(sock, &sa.sa, &len))) != INVALID_SOCKET) {
+ ns_set_close_on_exec(sp[0]);
+ ns_set_close_on_exec(sp[1]);
+ ret = 1;
+ } else {
+ if (sp[0] != INVALID_SOCKET) closesocket(sp[0]);
+ if (sp[1] != INVALID_SOCKET) closesocket(sp[1]);
+ sp[0] = sp[1] = INVALID_SOCKET;
+ }
+ if (sock_type != SOCK_DGRAM) closesocket(sock);
+
+ return ret;
+}
+
+int ns_socketpair(sock_t sp[2]) {
+ return ns_socketpair2(sp, SOCK_STREAM);
+}
+#endif // NS_DISABLE_SOCKETPAIR
+
+// Valid listening port spec is: [ip_address:]port, e.g. "80", "127.0.0.1:3128"
+static int ns_parse_port_string(const char *str, union socket_address *sa) {
+ unsigned int a, b, c, d, port;
+ int len = 0;
+#ifdef NS_ENABLE_IPV6
+ char buf[100];
+#endif
- va_start(ap, fmt);
- (void) vsnprintf(buf, sizeof(buf), fmt, ap);
- va_end(ap);
+ // MacOS needs that. If we do not zero it, subsequent bind() will fail.
+ // Also, all-zeroes in the socket address means binding to all addresses
+ // for both IPv4 and IPv6 (INADDR_ANY and IN6ADDR_ANY_INIT).
+ memset(sa, 0, sizeof(*sa));
+ sa->sin.sin_family = AF_INET;
+
+ if (sscanf(str, "%u.%u.%u.%u:%u%n", &a, &b, &c, &d, &port, &len) == 5) {
+ // Bind to a specific IPv4 address, e.g. 192.168.1.5:8080
+ sa->sin.sin_addr.s_addr = htonl((a << 24) | (b << 16) | (c << 8) | d);
+ sa->sin.sin_port = htons((uint16_t) port);
+#ifdef NS_ENABLE_IPV6
+ } else if (sscanf(str, "[%49[^]]]:%u%n", buf, &port, &len) == 2 &&
+ inet_pton(AF_INET6, buf, &sa->sin6.sin6_addr)) {
+ // IPv6 address, e.g. [3ffe:2a00:100:7031::1]:8080
+ sa->sin6.sin6_family = AF_INET6;
+ sa->sin6.sin6_port = htons((uint16_t) port);
+#endif
+ } else if (sscanf(str, "%u%n", &port, &len) == 1) {
+ // If only port is specified, bind to IPv4, INADDR_ANY
+ sa->sin.sin_port = htons((uint16_t) port);
+ } else {
+ port = 0; // Parsing failure. Make port invalid.
+ }
- // Do not lock when getting the callback value, here and below.
- // I suppose this is fine, since function cannot disappear in the
- // same way string option can.
- if (conn->ctx->callbacks.log_message == NULL ||
- conn->ctx->callbacks.log_message(conn, buf) == 0) {
- fp = conn->ctx == NULL || conn->ctx->config[ERROR_LOG_FILE] == NULL ? NULL :
- fopen(conn->ctx->config[ERROR_LOG_FILE], "a+");
+ return port <= 0xffff && str[len] == '\0';
+}
- if (fp != NULL) {
- flockfile(fp);
- timestamp = time(NULL);
+// 'sa' must be an initialized address to bind to
+static sock_t ns_open_listening_socket(union socket_address *sa) {
+ socklen_t len = sizeof(*sa);
+ sock_t sock = INVALID_SOCKET;
+#ifndef _WIN32
+ int on = 1;
+#endif
- sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
- fprintf(fp, "[%010lu] [error] [client %s] ", (unsigned long) timestamp,
- src_addr);
+ if ((sock = socket(sa->sa.sa_family, SOCK_STREAM, 6)) != INVALID_SOCKET &&
+#ifndef _WIN32
+ !setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *) &on, sizeof(on)) &&
+#endif
+ !bind(sock, &sa->sa, sa->sa.sa_family == AF_INET ?
+ sizeof(sa->sin) : sizeof(sa->sa)) &&
+ !listen(sock, SOMAXCONN)) {
+ ns_set_non_blocking_mode(sock);
+ // In case port was set to 0, get the real port number
+ (void) getsockname(sock, &sa->sa, &len);
+ } else if (sock != INVALID_SOCKET) {
+ closesocket(sock);
+ sock = INVALID_SOCKET;
+ }
+
+ return sock;
+}
+
+// Certificate generation script is at
+// https://github.com/cesanta/net_skeleton/blob/master/examples/gen_certs.sh
+int ns_set_ssl_ca_cert(struct ns_server *server, const char *cert) {
+#ifdef NS_ENABLE_SSL
+ STACK_OF(X509_NAME) *list = SSL_load_client_CA_file(cert);
+ if (cert != NULL && server->ssl_ctx != NULL && list != NULL) {
+ SSL_CTX_set_client_CA_list(server->ssl_ctx, list);
+ SSL_CTX_set_verify(server->ssl_ctx, SSL_VERIFY_PEER |
+ SSL_VERIFY_FAIL_IF_NO_PEER_CERT, NULL);
+ return 0;
+ }
+#endif
+ return server != NULL && cert == NULL ? 0 : -1;
+}
+
+int ns_set_ssl_cert(struct ns_server *server, const char *cert) {
+#ifdef NS_ENABLE_SSL
+ if (cert != NULL &&
+ (server->ssl_ctx = SSL_CTX_new(SSLv23_server_method())) == NULL) {
+ return -1;
+ } else if (SSL_CTX_use_certificate_file(server->ssl_ctx, cert, 1) == 0 ||
+ SSL_CTX_use_PrivateKey_file(server->ssl_ctx, cert, 1) == 0) {
+ return -2;
+ } else {
+ SSL_CTX_use_certificate_chain_file(server->ssl_ctx, cert);
+ return 0;
+ }
+#endif
+ return server != NULL && cert == NULL ? 0 : -3;
+}
+
+int ns_bind(struct ns_server *server, const char *str) {
+ union socket_address sa;
+ ns_parse_port_string(str, &sa);
+ if (server->listening_sock != INVALID_SOCKET) {
+ closesocket(server->listening_sock);
+ }
+ server->listening_sock = ns_open_listening_socket(&sa);
+ return server->listening_sock == INVALID_SOCKET ? -1 :
+ (int) ntohs(sa.sin.sin_port);
+}
+
+
+static struct ns_connection *accept_conn(struct ns_server *server) {
+ struct ns_connection *c = NULL;
+ union socket_address sa;
+ socklen_t len = sizeof(sa);
+ sock_t sock = INVALID_SOCKET;
+
+ // NOTE(lsm): on Windows, sock is always > FD_SETSIZE
+ if ((sock = accept(server->listening_sock, &sa.sa, &len)) == INVALID_SOCKET) {
+ } else if ((c = (struct ns_connection *) NS_MALLOC(sizeof(*c))) == NULL ||
+ memset(c, 0, sizeof(*c)) == NULL) {
+ closesocket(sock);
+#ifdef NS_ENABLE_SSL
+ } else if (server->ssl_ctx != NULL &&
+ ((c->ssl = SSL_new(server->ssl_ctx)) == NULL ||
+ SSL_set_fd(c->ssl, sock) != 1)) {
+ DBG(("SSL error"));
+ closesocket(sock);
+ free(c);
+ c = NULL;
+#endif
+ } else {
+ ns_set_close_on_exec(sock);
+ ns_set_non_blocking_mode(sock);
+ c->server = server;
+ c->sock = sock;
+ c->flags |= NSF_ACCEPTED;
- if (conn->request_info.request_method != NULL) {
- fprintf(fp, "%s %s: ", conn->request_info.request_method,
- conn->request_info.uri);
- }
+ ns_add_conn(server, c);
+ ns_call(c, NS_ACCEPT, &sa);
+ DBG(("%p %d %p %p", c, c->sock, c->ssl, server->ssl_ctx));
+ }
- fprintf(fp, "%s", buf);
- fputc('\n', fp);
- funlockfile(fp);
- fclose(fp);
- }
- }
+ return c;
}
-// Return fake connection structure. Used for logging, if connection
-// is not applicable at the moment of logging.
-static struct mg_connection *fc(struct mg_context *ctx) {
- static struct mg_connection fake_connection;
- fake_connection.ctx = ctx;
- return &fake_connection;
+static int ns_is_error(int n) {
+ return n == 0 ||
+ (n < 0 && errno != EINTR && errno != EINPROGRESS &&
+ errno != EAGAIN && errno != EWOULDBLOCK
+#ifdef _WIN32
+ && WSAGetLastError() != WSAEINTR && WSAGetLastError() != WSAEWOULDBLOCK
+#endif
+ );
+}
+
+void ns_sock_to_str(sock_t sock, char *buf, size_t len, int flags) {
+ union socket_address sa;
+ socklen_t slen = sizeof(sa);
+
+ if (buf != NULL && len > 0) {
+ buf[0] = '\0';
+ memset(&sa, 0, sizeof(sa));
+ if (flags & 4) {
+ getpeername(sock, &sa.sa, &slen);
+ } else {
+ getsockname(sock, &sa.sa, &slen);
+ }
+ if (flags & 1) {
+#if defined(NS_ENABLE_IPV6)
+ inet_ntop(sa.sa.sa_family, sa.sa.sa_family == AF_INET ?
+ (void *) &sa.sin.sin_addr :
+ (void *) &sa.sin6.sin6_addr, buf, len);
+#elif defined(_WIN32)
+ // Only Windoze Vista (and newer) have inet_ntop()
+ strncpy(buf, inet_ntoa(sa.sin.sin_addr), len);
+#else
+ inet_ntop(sa.sa.sa_family, (void *) &sa.sin.sin_addr, buf, len);
+#endif
+ }
+ if (flags & 2) {
+ snprintf(buf + strlen(buf), len - (strlen(buf) + 1), ":%d",
+ (int) ntohs(sa.sin.sin_port));
+ }
+ }
+}
+
+int ns_hexdump(const void *buf, int len, char *dst, int dst_len) {
+ const unsigned char *p = (const unsigned char *) buf;
+ char ascii[17] = "";
+ int i, idx, n = 0;
+
+ for (i = 0; i < len; i++) {
+ idx = i % 16;
+ if (idx == 0) {
+ if (i > 0) n += snprintf(dst + n, dst_len - n, " %s\n", ascii);
+ n += snprintf(dst + n, dst_len - n, "%04x ", i);
+ }
+ n += snprintf(dst + n, dst_len - n, " %02x", p[i]);
+ ascii[idx] = p[i] < 0x20 || p[i] > 0x7e ? '.' : p[i];
+ ascii[idx + 1] = '\0';
+ }
+
+ while (i++ % 16) n += snprintf(dst + n, dst_len - n, "%s", " ");
+ n += snprintf(dst + n, dst_len - n, " %s\n\n", ascii);
+
+ return n;
+}
+
+static void ns_read_from_socket(struct ns_connection *conn) {
+ char buf[2048];
+ int n = 0;
+
+ if (conn->flags & NSF_CONNECTING) {
+ int ok = 1, ret;
+ socklen_t len = sizeof(ok);
+
+ ret = getsockopt(conn->sock, SOL_SOCKET, SO_ERROR, (char *) &ok, &len);
+ (void) ret;
+#ifdef NS_ENABLE_SSL
+ if (ret == 0 && ok == 0 && conn->ssl != NULL) {
+ int res = SSL_connect(conn->ssl);
+ int ssl_err = SSL_get_error(conn->ssl, res);
+ DBG(("%p %d wres %d %d", conn, conn->flags, res, ssl_err));
+ if (ssl_err == SSL_ERROR_WANT_READ) conn->flags |= NSF_WANT_READ;
+ if (ssl_err == SSL_ERROR_WANT_WRITE) conn->flags |= NSF_WANT_WRITE;
+ if (res == 1) {
+ conn->flags |= NSF_SSL_HANDSHAKE_DONE;
+ } else if (ssl_err == SSL_ERROR_WANT_READ ||
+ ssl_err == SSL_ERROR_WANT_WRITE) {
+ return; // Call us again
+ } else {
+ ok = 1;
+ }
+ }
+#endif
+ conn->flags &= ~NSF_CONNECTING;
+ DBG(("%p ok=%d", conn, ok));
+ if (ok != 0) {
+ conn->flags |= NSF_CLOSE_IMMEDIATELY;
+ }
+ ns_call(conn, NS_CONNECT, &ok);
+ return;
+ }
+
+#ifdef NS_ENABLE_SSL
+ if (conn->ssl != NULL) {
+ if (conn->flags & NSF_SSL_HANDSHAKE_DONE) {
+ n = SSL_read(conn->ssl, buf, sizeof(buf));
+ } else {
+ int res = SSL_accept(conn->ssl);
+ int ssl_err = SSL_get_error(conn->ssl, res);
+ DBG(("%p %d rres %d %d", conn, conn->flags, res, ssl_err));
+ if (ssl_err == SSL_ERROR_WANT_READ) conn->flags |= NSF_WANT_READ;
+ if (ssl_err == SSL_ERROR_WANT_WRITE) conn->flags |= NSF_WANT_WRITE;
+ if (res == 1) {
+ conn->flags |= NSF_SSL_HANDSHAKE_DONE;
+ } else if (ssl_err == SSL_ERROR_WANT_READ ||
+ ssl_err == SSL_ERROR_WANT_WRITE) {
+ return; // Call us again
+ } else {
+ conn->flags |= NSF_CLOSE_IMMEDIATELY;
+ }
+ return;
+ }
+ } else
+#endif
+ {
+ n = recv(conn->sock, buf, sizeof(buf), 0);
+ }
+
+ DBG(("%p %d <- %d bytes", conn, conn->flags, n));
+
+ if (ns_is_error(n)) {
+ conn->flags |= NSF_CLOSE_IMMEDIATELY;
+ } else if (n > 0) {
+ iobuf_append(&conn->recv_iobuf, buf, n);
+ ns_call(conn, NS_RECV, &n);
+ }
+}
+
+static void ns_write_to_socket(struct ns_connection *conn) {
+ struct iobuf *io = &conn->send_iobuf;
+ int n = 0;
+
+#ifdef NS_ENABLE_SSL
+ if (conn->ssl != NULL) {
+ n = SSL_write(conn->ssl, io->buf, io->len);
+ if (n < 0) {
+ int ssl_err = SSL_get_error(conn->ssl, n);
+ DBG(("%p %d %d", conn, n, ssl_err));
+ if (ssl_err == 2 || ssl_err == 3) {
+ return; // Call us again
+ } else {
+ conn->flags |= NSF_CLOSE_IMMEDIATELY;
+ }
+ }
+ } else
+#endif
+ { n = send(conn->sock, io->buf, io->len, 0); }
+
+ DBG(("%p %d -> %d bytes", conn, conn->flags, n));
+
+ ns_call(conn, NS_SEND, &n);
+ if (ns_is_error(n)) {
+ conn->flags |= NSF_CLOSE_IMMEDIATELY;
+ } else if (n > 0) {
+ iobuf_remove(io, n);
+ }
+
+ if (io->len == 0 && conn->flags & NSF_FINISHED_SENDING_DATA) {
+ conn->flags |= NSF_CLOSE_IMMEDIATELY;
+ }
+}
+
+int ns_send(struct ns_connection *conn, const void *buf, int len) {
+ return iobuf_append(&conn->send_iobuf, buf, len);
+}
+
+static void ns_add_to_set(sock_t sock, fd_set *set, sock_t *max_fd) {
+ if (sock != INVALID_SOCKET) {
+ FD_SET(sock, set);
+ if (*max_fd == INVALID_SOCKET || sock > *max_fd) {
+ *max_fd = sock;
+ }
+ }
+}
+
+int ns_server_poll(struct ns_server *server, int milli) {
+ struct ns_connection *conn, *tmp_conn;
+ struct timeval tv;
+ fd_set read_set, write_set;
+ int num_active_connections = 0;
+ sock_t max_fd = INVALID_SOCKET;
+ time_t current_time = time(NULL);
+
+ if (server->listening_sock == INVALID_SOCKET &&
+ server->active_connections == NULL) return 0;
+
+ FD_ZERO(&read_set);
+ FD_ZERO(&write_set);
+ ns_add_to_set(server->listening_sock, &read_set, &max_fd);
+ ns_add_to_set(server->ctl[1], &read_set, &max_fd);
+
+ for (conn = server->active_connections; conn != NULL; conn = tmp_conn) {
+ tmp_conn = conn->next;
+ ns_call(conn, NS_POLL, &current_time);
+ if (!(conn->flags & NSF_WANT_WRITE)) {
+ //DBG(("%p read_set", conn));
+ ns_add_to_set(conn->sock, &read_set, &max_fd);
+ }
+ if (((conn->flags & NSF_CONNECTING) && !(conn->flags & NSF_WANT_READ)) ||
+ (conn->send_iobuf.len > 0 && !(conn->flags & NSF_CONNECTING) &&
+ !(conn->flags & NSF_BUFFER_BUT_DONT_SEND))) {
+ //DBG(("%p write_set", conn));
+ ns_add_to_set(conn->sock, &write_set, &max_fd);
+ }
+ if (conn->flags & NSF_CLOSE_IMMEDIATELY) {
+ ns_close_conn(conn);
+ }
+ }
+
+ tv.tv_sec = milli / 1000;
+ tv.tv_usec = (milli % 1000) * 1000;
+
+ if (select((int) max_fd + 1, &read_set, &write_set, NULL, &tv) > 0) {
+ // Accept new connections
+ if (server->listening_sock != INVALID_SOCKET &&
+ FD_ISSET(server->listening_sock, &read_set)) {
+ // We're not looping here, and accepting just one connection at
+ // a time. The reason is that eCos does not respect non-blocking
+ // flag on a listening socket and hangs in a loop.
+ if ((conn = accept_conn(server)) != NULL) {
+ conn->last_io_time = current_time;
+ }
+ }
+
+ // Read wakeup messages
+ if (server->ctl[1] != INVALID_SOCKET &&
+ FD_ISSET(server->ctl[1], &read_set)) {
+ struct ctl_msg ctl_msg;
+ int len = recv(server->ctl[1], (char *) &ctl_msg, sizeof(ctl_msg), 0);
+ send(server->ctl[1], ctl_msg.message, 1, 0);
+ if (len >= (int) sizeof(ctl_msg.callback) && ctl_msg.callback != NULL) {
+ ns_iterate(server, ctl_msg.callback, ctl_msg.message);
+ }
+ }
+
+ for (conn = server->active_connections; conn != NULL; conn = tmp_conn) {
+ tmp_conn = conn->next;
+ //DBG(("%p LOOP %p", conn, conn->ssl));
+ if (FD_ISSET(conn->sock, &read_set)) {
+ conn->last_io_time = current_time;
+ ns_read_from_socket(conn);
+ }
+ if (FD_ISSET(conn->sock, &write_set)) {
+ if (conn->flags & NSF_CONNECTING) {
+ ns_read_from_socket(conn);
+ } else if (!(conn->flags & NSF_BUFFER_BUT_DONT_SEND)) {
+ conn->last_io_time = current_time;
+ ns_write_to_socket(conn);
+ }
+ }
+ }
+ }
+
+ for (conn = server->active_connections; conn != NULL; conn = tmp_conn) {
+ tmp_conn = conn->next;
+ num_active_connections++;
+ if (conn->flags & NSF_CLOSE_IMMEDIATELY) {
+ ns_close_conn(conn);
+ }
+ }
+ //DBG(("%d active connections", num_active_connections));
+
+ return num_active_connections;
+}
+
+struct ns_connection *ns_connect(struct ns_server *server, const char *host,
+ int port, int use_ssl, void *param) {
+ sock_t sock = INVALID_SOCKET;
+ struct sockaddr_in sin;
+ struct hostent *he = NULL;
+ struct ns_connection *conn = NULL;
+ int connect_ret_val;
+
+ (void) use_ssl;
+
+ if (host == NULL || (he = gethostbyname(host)) == NULL ||
+ (sock = socket(AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) {
+ DBG(("gethostbyname(%s) failed: %s", host, strerror(errno)));
+ return NULL;
+ }
+
+ sin.sin_family = AF_INET;
+ sin.sin_port = htons((uint16_t) port);
+ sin.sin_addr = * (struct in_addr *) he->h_addr_list[0];
+ ns_set_non_blocking_mode(sock);
+
+ connect_ret_val = connect(sock, (struct sockaddr *) &sin, sizeof(sin));
+ if (ns_is_error(connect_ret_val)) {
+ closesocket(sock);
+ return NULL;
+ } else if ((conn = (struct ns_connection *)
+ NS_MALLOC(sizeof(*conn))) == NULL) {
+ closesocket(sock);
+ return NULL;
+ }
+
+ memset(conn, 0, sizeof(*conn));
+ conn->server = server;
+ conn->sock = sock;
+ conn->connection_data = param;
+ conn->flags = NSF_CONNECTING;
+ conn->last_io_time = time(NULL);
+
+#ifdef NS_ENABLE_SSL
+ if (use_ssl &&
+ (conn->ssl = SSL_new(server->client_ssl_ctx)) != NULL) {
+ SSL_set_fd(conn->ssl, sock);
+ }
+#endif
+
+ ns_add_conn(server, conn);
+ DBG(("%p %s:%d %d %p", conn, host, port, conn->sock, conn->ssl));
+
+ return conn;
}
-const char *mg_version(void) {
- return MONGOOSE_VERSION;
+struct ns_connection *ns_add_sock(struct ns_server *s, sock_t sock, void *p) {
+ struct ns_connection *conn;
+ if ((conn = (struct ns_connection *) NS_MALLOC(sizeof(*conn))) != NULL) {
+ memset(conn, 0, sizeof(*conn));
+ ns_set_non_blocking_mode(sock);
+ conn->sock = sock;
+ conn->connection_data = p;
+ conn->server = s;
+ conn->last_io_time = time(NULL);
+ ns_add_conn(s, conn);
+ DBG(("%p %d", conn, sock));
+ }
+ return conn;
}
-struct mg_request_info *mg_get_request_info(struct mg_connection *conn) {
- return &conn->request_info;
+void ns_iterate(struct ns_server *server, ns_callback_t cb, void *param) {
+ struct ns_connection *conn, *tmp_conn;
+
+ for (conn = server->active_connections; conn != NULL; conn = tmp_conn) {
+ tmp_conn = conn->next;
+ cb(conn, NS_POLL, param);
+ }
}
-static void mg_strlcpy(register char *dst, register const char *src, size_t n) {
- for (; *src != '\0' && n > 1; n--) {
- *dst++ = *src++;
- }
- *dst = '\0';
+void ns_server_wakeup_ex(struct ns_server *server, ns_callback_t cb,
+ void *data, size_t len) {
+ struct ctl_msg ctl_msg;
+ if (server->ctl[0] != INVALID_SOCKET && data != NULL &&
+ len < sizeof(ctl_msg.message)) {
+ ctl_msg.callback = cb;
+ memcpy(ctl_msg.message, data, len);
+ send(server->ctl[0], (char *) &ctl_msg,
+ offsetof(struct ctl_msg, message) + len, 0);
+ recv(server->ctl[0], (char *) &len, 1, 0);
+ }
}
-static int lowercase(const char *s) {
- return tolower(* (const unsigned char *) s);
+void ns_server_wakeup(struct ns_server *server) {
+ ns_server_wakeup_ex(server, NULL, (void *) "", 0);
}
-static int mg_strncasecmp(const char *s1, const char *s2, size_t len) {
- int diff = 0;
+void ns_server_init(struct ns_server *s, void *server_data, ns_callback_t cb) {
+ memset(s, 0, sizeof(*s));
+ s->listening_sock = s->ctl[0] = s->ctl[1] = INVALID_SOCKET;
+ s->server_data = server_data;
+ s->callback = cb;
+
+#ifdef _WIN32
+ { WSADATA data; WSAStartup(MAKEWORD(2, 2), &data); }
+#else
+ // Ignore SIGPIPE signal, so if client cancels the request, it
+ // won't kill the whole process.
+ signal(SIGPIPE, SIG_IGN);
+#endif
- if (len > 0)
- do {
- diff = lowercase(s1++) - lowercase(s2++);
- } while (diff == 0 && s1[-1] != '\0' && --len > 0);
+#ifndef NS_DISABLE_SOCKETPAIR
+ do {
+ ns_socketpair2(s->ctl, SOCK_DGRAM);
+ } while (s->ctl[0] == INVALID_SOCKET);
+#endif
- return diff;
+#ifdef NS_ENABLE_SSL
+ SSL_library_init();
+ s->client_ssl_ctx = SSL_CTX_new(SSLv23_client_method());
+#endif
}
-static int mg_strcasecmp(const char *s1, const char *s2) {
- int diff;
+void ns_server_free(struct ns_server *s) {
+ struct ns_connection *conn, *tmp_conn;
+
+ DBG(("%p", s));
+ if (s == NULL) return;
+ // Do one last poll, see https://github.com/cesanta/mongoose/issues/286
+ ns_server_poll(s, 0);
+
+ if (s->listening_sock != INVALID_SOCKET) closesocket(s->listening_sock);
+ if (s->ctl[0] != INVALID_SOCKET) closesocket(s->ctl[0]);
+ if (s->ctl[1] != INVALID_SOCKET) closesocket(s->ctl[1]);
+ s->listening_sock = s->ctl[0] = s->ctl[1] = INVALID_SOCKET;
- do {
- diff = lowercase(s1++) - lowercase(s2++);
- } while (diff == 0 && s1[-1] != '\0');
+ for (conn = s->active_connections; conn != NULL; conn = tmp_conn) {
+ tmp_conn = conn->next;
+ ns_close_conn(conn);
+ }
- return diff;
+#ifdef NS_ENABLE_SSL
+ if (s->ssl_ctx != NULL) SSL_CTX_free(s->ssl_ctx);
+ if (s->client_ssl_ctx != NULL) SSL_CTX_free(s->client_ssl_ctx);
+ s->ssl_ctx = s->client_ssl_ctx = NULL;
+#endif
}
+// net_skeleton end
+#endif // NOEMBED_NET_SKELETON
-static char * mg_strndup(const char *ptr, size_t len) {
- char *p;
+#include <ctype.h>
- if ((p = (char *) malloc(len + 1)) != NULL) {
- mg_strlcpy(p, ptr, len + 1);
- }
+#ifdef _WIN32 //////////////// Windows specific defines and includes
+#include <io.h> // For _lseeki64
+#include <direct.h> // For _mkdir
+#ifndef S_ISDIR
+#define S_ISDIR(x) ((x) & _S_IFDIR)
+#endif
+#ifdef stat
+#undef stat
+#endif
+#ifdef lseek
+#undef lseek
+#endif
+#ifdef popen
+#undef popen
+#endif
+#ifdef pclose
+#undef pclose
+#endif
+#define stat(x, y) mg_stat((x), (y))
+#define fopen(x, y) mg_fopen((x), (y))
+#define open(x, y) mg_open((x), (y))
+#define lseek(x, y, z) _lseeki64((x), (y), (z))
+#define popen(x, y) _popen((x), (y))
+#define pclose(x) _pclose(x)
+#define mkdir(x, y) _mkdir(x)
+#ifndef __func__
+#define STRX(x) #x
+#define STR(x) STRX(x)
+#define __func__ __FILE__ ":" STR(__LINE__)
+#endif
+#define INT64_FMT "I64d"
+#define stat(x, y) mg_stat((x), (y))
+#define fopen(x, y) mg_fopen((x), (y))
+#define open(x, y) mg_open((x), (y))
+#define flockfile(x) ((void) (x))
+#define funlockfile(x) ((void) (x))
+typedef struct _stati64 file_stat_t;
+typedef HANDLE process_id_t;
+#else ////////////// UNIX specific defines and includes
+#include <dirent.h>
+#include <dlfcn.h>
+#include <inttypes.h>
+#include <pwd.h>
+#define O_BINARY 0
+#define INT64_FMT PRId64
+typedef struct stat file_stat_t;
+typedef pid_t process_id_t;
+#endif //////// End of platform-specific defines and includes
- return p;
-}
+#include "mongoose.h"
-static char * mg_strdup(const char *str) {
- return mg_strndup(str, strlen(str));
-}
+#define MAX_REQUEST_SIZE 16384
+#define IOBUF_SIZE 8192
+#define MAX_PATH_SIZE 8192
+#define DEFAULT_CGI_PATTERN "**.cgi$|**.pl$|**.php$"
+#define CGI_ENVIRONMENT_SIZE 8192
+#define MAX_CGI_ENVIR_VARS 64
+#define ENV_EXPORT_TO_CGI "MONGOOSE_CGI"
+#define PASSWORDS_FILE_NAME ".htpasswd"
-static const char *mg_strcasestr(const char *big_str, const char *small_str) {
- int i, big_len = strlen(big_str), small_len = strlen(small_str);
+#ifndef MONGOOSE_USE_WEBSOCKET_PING_INTERVAL
+#define MONGOOSE_USE_WEBSOCKET_PING_INTERVAL 5
+#endif
- for (i = 0; i <= big_len - small_len; i++) {
- if (mg_strncasecmp(big_str + i, small_str, small_len) == 0) {
- return big_str + i;
- }
- }
+// Extra HTTP headers to send in every static file reply
+#if !defined(MONGOOSE_USE_EXTRA_HTTP_HEADERS)
+#define MONGOOSE_USE_EXTRA_HTTP_HEADERS ""
+#endif
- return NULL;
-}
+#ifndef MONGOOSE_POST_SIZE_LIMIT
+#define MONGOOSE_POST_SIZE_LIMIT 0
+#endif
-// Like snprintf(), but never returns negative value, or a value
-// that is larger than a supplied buffer.
-// Thanks to Adam Zeldis to pointing snprintf()-caused vulnerability
-// in his audit report.
-static int mg_vsnprintf(struct mg_connection *conn, char *buf, size_t buflen,
- const char *fmt, va_list ap) {
- int n;
+#ifndef MONGOOSE_IDLE_TIMEOUT_SECONDS
+#define MONGOOSE_IDLE_TIMEOUT_SECONDS 30
+#endif
- if (buflen == 0)
- return 0;
+#ifdef MONGOOSE_NO_SOCKETPAIR
+#define MONGOOSE_NO_CGI
+#endif
- n = vsnprintf(buf, buflen, fmt, ap);
+#ifdef MONGOOSE_NO_FILESYSTEM
+#define MONGOOSE_NO_AUTH
+#define MONGOOSE_NO_CGI
+#define MONGOOSE_NO_DAV
+#define MONGOOSE_NO_DIRECTORY_LISTING
+#define MONGOOSE_NO_LOGGING
+#define MONGOOSE_NO_SSI
+#define MONGOOSE_NO_DL
+#endif
- if (n < 0) {
- cry(conn, "vsnprintf error");
- n = 0;
- } else if (n >= (int) buflen) {
- cry(conn, "truncating vsnprintf buffer: [%.*s]",
- n > 200 ? 200 : n, buf);
- n = (int) buflen - 1;
- }
- buf[n] = '\0';
+struct vec {
+ const char *ptr;
+ int len;
+};
- return n;
-}
+// For directory listing and WevDAV support
+struct dir_entry {
+ struct connection *conn;
+ char *file_name;
+ file_stat_t st;
+};
+
+// NOTE(lsm): this enum shoulds be in sync with the config_options.
+enum {
+ ACCESS_CONTROL_LIST,
+#ifndef MONGOOSE_NO_FILESYSTEM
+ ACCESS_LOG_FILE,
+#ifndef MONGOOSE_NO_AUTH
+ AUTH_DOMAIN,
+#endif
+#ifndef MONGOOSE_NO_CGI
+ CGI_INTERPRETER,
+ CGI_PATTERN,
+#endif
+ DAV_AUTH_FILE,
+ DOCUMENT_ROOT,
+#ifndef MONGOOSE_NO_DIRECTORY_LISTING
+ ENABLE_DIRECTORY_LISTING,
+#endif
+#endif
+ EXTRA_MIME_TYPES,
+#if !defined(MONGOOSE_NO_FILESYSTEM) && !defined(MONGOOSE_NO_AUTH)
+ GLOBAL_AUTH_FILE,
+#endif
+#ifndef MONGOOSE_NO_FILESYSTEM
+ HIDE_FILES_PATTERN,
+ HEXDUMP_FILE,
+ INDEX_FILES,
+#endif
+ LISTENING_PORT,
+#ifndef _WIN32
+ RUN_AS_USER,
+#endif
+#ifndef MONGOOSE_NO_SSI
+ SSI_PATTERN,
+#endif
+#ifdef NS_ENABLE_SSL
+ SSL_CERTIFICATE,
+ SSL_CA_CERTIFICATE,
+ SSL_MITM_CERTS,
+#endif
+ URL_REWRITES,
+ NUM_OPTIONS
+};
-static int mg_snprintf(struct mg_connection *conn, char *buf, size_t buflen,
- PRINTF_FORMAT_STRING(const char *fmt), ...)
- PRINTF_ARGS(4, 5);
+static const char *static_config_options[] = {
+ "access_control_list", NULL,
+#ifndef MONGOOSE_NO_FILESYSTEM
+ "access_log_file", NULL,
+#ifndef MONGOOSE_NO_AUTH
+ "auth_domain", "mydomain.com",
+#endif
+#ifndef MONGOOSE_NO_CGI
+ "cgi_interpreter", NULL,
+ "cgi_pattern", DEFAULT_CGI_PATTERN,
+#endif
+ "dav_auth_file", NULL,
+ "document_root", NULL,
+#ifndef MONGOOSE_NO_DIRECTORY_LISTING
+ "enable_directory_listing", "yes",
+#endif
+#endif
+ "extra_mime_types", NULL,
+#if !defined(MONGOOSE_NO_FILESYSTEM) && !defined(MONGOOSE_NO_AUTH)
+ "global_auth_file", NULL,
+#endif
+#ifndef MONGOOSE_NO_FILESYSTEM
+ "hide_files_patterns", NULL,
+ "hexdump_file", NULL,
+ "index_files","index.html,index.htm,index.shtml,index.cgi,index.php,index.lp",
+#endif
+ "listening_port", NULL,
+#ifndef _WIN32
+ "run_as_user", NULL,
+#endif
+#ifndef MONGOOSE_NO_SSI
+ "ssi_pattern", "**.shtml$|**.shtm$",
+#endif
+#ifdef NS_ENABLE_SSL
+ "ssl_certificate", NULL,
+ "ssl_ca_certificate", NULL,
+ "ssl_mitm_certs", NULL,
+#endif
+ "url_rewrites", NULL,
+ NULL
+};
-static int mg_snprintf(struct mg_connection *conn, char *buf, size_t buflen,
- const char *fmt, ...) {
- va_list ap;
- int n;
+struct mg_server {
+ struct ns_server ns_server;
+ union socket_address lsa; // Listening socket address
+ mg_handler_t event_handler;
+ char *config_options[NUM_OPTIONS];
+};
- va_start(ap, fmt);
- n = mg_vsnprintf(conn, buf, buflen, fmt, ap);
- va_end(ap);
+// Local endpoint representation
+union endpoint {
+ int fd; // Opened regular local file
+ struct ns_connection *nc; // CGI or proxy->target connection
+};
- return n;
-}
+enum endpoint_type {
+ EP_NONE, EP_FILE, EP_CGI, EP_USER, EP_PUT, EP_CLIENT, EP_PROXY
+};
-// Skip the characters until one of the delimiters characters found.
-// 0-terminate resulting word. Skip the delimiter and following whitespaces.
-// Advance pointer to buffer to the next word. Return found 0-terminated word.
-// Delimiters can be quoted with quotechar.
-static char *skip_quoted(char **buf, const char *delimiters,
- const char *whitespace, char quotechar) {
- char *p, *begin_word, *end_word, *end_whitespace;
-
- begin_word = *buf;
- end_word = begin_word + strcspn(begin_word, delimiters);
-
- // Check for quotechar
- if (end_word > begin_word) {
- p = end_word - 1;
- while (*p == quotechar) {
- // If there is anything beyond end_word, copy it
- if (*end_word == '\0') {
- *p = '\0';
- break;
- } else {
- size_t end_off = strcspn(end_word + 1, delimiters);
- memmove (p, end_word, end_off + 1);
- p += end_off; // p must correspond to end_word - 1
- end_word += end_off + 1;
- }
- }
- for (p++; p < end_word; p++) {
- *p = '\0';
- }
- }
-
- if (*end_word == '\0') {
- *buf = end_word;
- } else {
- end_whitespace = end_word + 1 + strspn(end_word + 1, whitespace);
-
- for (p = end_word; p < end_whitespace; p++) {
- *p = '\0';
- }
-
- *buf = end_whitespace;
- }
-
- return begin_word;
-}
-
-// Simplified version of skip_quoted without quote char
-// and whitespace == delimiters
-static char *skip(char **buf, const char *delimiters) {
- return skip_quoted(buf, delimiters, delimiters, 0);
+#define MG_HEADERS_SENT NSF_USER_1
+#define MG_LONG_RUNNING NSF_USER_2
+#define MG_CGI_CONN NSF_USER_3
+#define MG_PROXY_CONN NSF_USER_4
+
+struct connection {
+ struct ns_connection *ns_conn; // NOTE(lsm): main.c depends on this order
+ struct mg_connection mg_conn;
+ struct mg_server *server;
+ union endpoint endpoint;
+ enum endpoint_type endpoint_type;
+ char *path_info;
+ char *request;
+ int64_t num_bytes_sent; // Total number of bytes sent
+ int64_t cl; // Reply content length, for Range support
+ int request_len; // Request length, including last \r\n after last header
+};
+
+#define MG_CONN_2_CONN(c) ((struct connection *) ((char *) (c) - \
+ offsetof(struct connection, mg_conn)))
+
+static void open_local_endpoint(struct connection *conn, int skip_user);
+static void close_local_endpoint(struct connection *conn);
+
+static const struct {
+ const char *extension;
+ size_t ext_len;
+ const char *mime_type;
+} static_builtin_mime_types[] = {
+ {".html", 5, "text/html"},
+ {".htm", 4, "text/html"},
+ {".shtm", 5, "text/html"},
+ {".shtml", 6, "text/html"},
+ {".css", 4, "text/css"},
+ {".js", 3, "application/x-javascript"},
+ {".ico", 4, "image/x-icon"},
+ {".gif", 4, "image/gif"},
+ {".jpg", 4, "image/jpeg"},
+ {".jpeg", 5, "image/jpeg"},
+ {".png", 4, "image/png"},
+ {".svg", 4, "image/svg+xml"},
+ {".txt", 4, "text/plain"},
+ {".torrent", 8, "application/x-bittorrent"},
+ {".wav", 4, "audio/x-wav"},
+ {".mp3", 4, "audio/x-mp3"},
+ {".mid", 4, "audio/mid"},
+ {".m3u", 4, "audio/x-mpegurl"},
+ {".ogg", 4, "application/ogg"},
+ {".ram", 4, "audio/x-pn-realaudio"},
+ {".xml", 4, "text/xml"},
+ {".json", 5, "text/json"},
+ {".xslt", 5, "application/xml"},
+ {".xsl", 4, "application/xml"},
+ {".ra", 3, "audio/x-pn-realaudio"},
+ {".doc", 4, "application/msword"},
+ {".exe", 4, "application/octet-stream"},
+ {".zip", 4, "application/x-zip-compressed"},
+ {".xls", 4, "application/excel"},
+ {".tgz", 4, "application/x-tar-gz"},
+ {".tar", 4, "application/x-tar"},
+ {".gz", 3, "application/x-gunzip"},
+ {".arj", 4, "application/x-arj-compressed"},
+ {".rar", 4, "application/x-rar-compressed"},
+ {".rtf", 4, "application/rtf"},
+ {".pdf", 4, "application/pdf"},
+ {".swf", 4, "application/x-shockwave-flash"},
+ {".mpg", 4, "video/mpeg"},
+ {".webm", 5, "video/webm"},
+ {".mpeg", 5, "video/mpeg"},
+ {".mov", 4, "video/quicktime"},
+ {".mp4", 4, "video/mp4"},
+ {".m4v", 4, "video/x-m4v"},
+ {".asf", 4, "video/x-ms-asf"},
+ {".avi", 4, "video/x-msvideo"},
+ {".bmp", 4, "image/bmp"},
+ {".ttf", 4, "application/x-font-ttf"},
+ {NULL, 0, NULL}
+};
+
+#ifndef MONGOOSE_NO_THREADS
+void *mg_start_thread(void *(*f)(void *), void *p) {
+ return ns_start_thread(f, p);
}
+#endif // MONGOOSE_NO_THREADS
+#if defined(_WIN32) && !defined(MONGOOSE_NO_FILESYSTEM)
+// Encode 'path' which is assumed UTF-8 string, into UNICODE string.
+// wbuf and wbuf_len is a target buffer and its length.
+static void to_wchar(const char *path, wchar_t *wbuf, size_t wbuf_len) {
+ char buf[MAX_PATH_SIZE * 2], buf2[MAX_PATH_SIZE * 2], *p;
-// Return HTTP header value, or NULL if not found.
-static const char *get_header(const struct mg_request_info *ri,
- const char *name) {
- int i;
+ strncpy(buf, path, sizeof(buf));
+ buf[sizeof(buf) - 1] = '\0';
- for (i = 0; i < ri->num_headers; i++)
- if (!mg_strcasecmp(name, ri->http_headers[i].name))
- return ri->http_headers[i].value;
+ // Trim trailing slashes. Leave backslash for paths like "X:\"
+ p = buf + strlen(buf) - 1;
+ while (p > buf && p[-1] != ':' && (p[0] == '\\' || p[0] == '/')) *p-- = '\0';
+
+ // Convert to Unicode and back. If doubly-converted string does not
+ // match the original, something is fishy, reject.
+ memset(wbuf, 0, wbuf_len * sizeof(wchar_t));
+ MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, (int) wbuf_len);
+ WideCharToMultiByte(CP_UTF8, 0, wbuf, (int) wbuf_len, buf2, sizeof(buf2),
+ NULL, NULL);
+ if (strcmp(buf, buf2) != 0) {
+ wbuf[0] = L'\0';
+ }
+}
- return NULL;
+static int mg_stat(const char *path, file_stat_t *st) {
+ wchar_t wpath[MAX_PATH_SIZE];
+ to_wchar(path, wpath, ARRAY_SIZE(wpath));
+ DBG(("[%ls] -> %d", wpath, _wstati64(wpath, st)));
+ return _wstati64(wpath, st);
}
-const char *mg_get_header(const struct mg_connection *conn, const char *name) {
- return get_header(&conn->request_info, name);
+static FILE *mg_fopen(const char *path, const char *mode) {
+ wchar_t wpath[MAX_PATH_SIZE], wmode[10];
+ to_wchar(path, wpath, ARRAY_SIZE(wpath));
+ to_wchar(mode, wmode, ARRAY_SIZE(wmode));
+ return _wfopen(wpath, wmode);
}
+static int mg_open(const char *path, int flag) {
+ wchar_t wpath[MAX_PATH_SIZE];
+ to_wchar(path, wpath, ARRAY_SIZE(wpath));
+ return _wopen(wpath, flag);
+}
+#endif // _WIN32 && !MONGOOSE_NO_FILESYSTEM
+
// A helper function for traversing a comma separated list of values.
// It returns a list pointer shifted to the next value, or NULL if the end
// of the list found.
@@ -865,1218 +1402,2109 @@ const char *mg_get_header(const struct mg_connection *conn, const char *name) {
// vector is initialized to point to the "y" part, and val vector length
// is adjusted to point only to "x".
static const char *next_option(const char *list, struct vec *val,
- struct vec *eq_val) {
- if (list == NULL || *list == '\0') {
- // End of the list
- list = NULL;
- } else {
- val->ptr = list;
- if ((list = strchr(val->ptr, ',')) != NULL) {
- // Comma found. Store length and shift the list ptr
- val->len = list - val->ptr;
- list++;
- } else {
- // This value is the last one
- list = val->ptr + strlen(val->ptr);
- val->len = list - val->ptr;
- }
-
- if (eq_val != NULL) {
- // Value has form "x=y", adjust pointers and lengths
- // so that val points to "x", and eq_val points to "y".
- eq_val->len = 0;
- eq_val->ptr = (const char *) memchr(val->ptr, '=', val->len);
- if (eq_val->ptr != NULL) {
- eq_val->ptr++; // Skip over '=' character
- eq_val->len = val->ptr + val->len - eq_val->ptr;
- val->len = (eq_val->ptr - val->ptr) - 1;
- }
- }
- }
-
- return list;
-}
-
-static int match_prefix(const char *pattern, int pattern_len, const char *str) {
- const char *or_str;
- int i, j, len, res;
-
- if ((or_str = (const char *) memchr(pattern, '|', pattern_len)) != NULL) {
- res = match_prefix(pattern, or_str - pattern, str);
- return res > 0 ? res :
- match_prefix(or_str + 1, (pattern + pattern_len) - (or_str + 1), str);
- }
-
- i = j = 0;
- res = -1;
- for (; i < pattern_len; i++, j++) {
- if (pattern[i] == '?' && str[j] != '\0') {
- continue;
- } else if (pattern[i] == '$') {
- return str[j] == '\0' ? j : -1;
- } else if (pattern[i] == '*') {
- i++;
- if (pattern[i] == '*') {
- i++;
- len = (int) strlen(str + j);
- } else {
- len = (int) strcspn(str + j, "/");
- }
- if (i == pattern_len) {
- return j + len;
- }
- do {
- res = match_prefix(pattern + i, pattern_len - i, str + j + len);
- } while (res == -1 && len-- > 0);
- return res == -1 ? -1 : j + res + len;
- } else if (pattern[i] != str[j]) {
- return -1;
- }
- }
- return j;
-}
-
-// HTTP 1.1 assumes keep alive if "Connection:" header is not set
-// This function must tolerate situations when connection info is not
-// set up, for example if request parsing failed.
-static int should_keep_alive(const struct mg_connection *conn) {
- const char *http_version = conn->request_info.http_version;
- const char *header = mg_get_header(conn, "Connection");
- if (conn->must_close ||
- conn->status_code == 401 ||
- mg_strcasecmp(conn->ctx->config[ENABLE_KEEP_ALIVE], "yes") != 0 ||
- (header != NULL && mg_strcasecmp(header, "keep-alive") != 0) ||
- (header == NULL && http_version && strcmp(http_version, "1.1"))) {
- return 0;
- }
- return 1;
+ struct vec *eq_val) {
+ if (list == NULL || *list == '\0') {
+ // End of the list
+ list = NULL;
+ } else {
+ val->ptr = list;
+ if ((list = strchr(val->ptr, ',')) != NULL) {
+ // Comma found. Store length and shift the list ptr
+ val->len = list - val->ptr;
+ list++;
+ } else {
+ // This value is the last one
+ list = val->ptr + strlen(val->ptr);
+ val->len = list - val->ptr;
+ }
+
+ if (eq_val != NULL) {
+ // Value has form "x=y", adjust pointers and lengths
+ // so that val points to "x", and eq_val points to "y".
+ eq_val->len = 0;
+ eq_val->ptr = (const char *) memchr(val->ptr, '=', val->len);
+ if (eq_val->ptr != NULL) {
+ eq_val->ptr++; // Skip over '=' character
+ eq_val->len = val->ptr + val->len - eq_val->ptr;
+ val->len = (eq_val->ptr - val->ptr) - 1;
+ }
+ }
+ }
+
+ return list;
}
-static const char *suggest_connection_header(const struct mg_connection *conn) {
- return should_keep_alive(conn) ? "keep-alive" : "close";
+// Like snprintf(), but never returns negative value, or a value
+// that is larger than a supplied buffer.
+static int mg_vsnprintf(char *buf, size_t buflen, const char *fmt, va_list ap) {
+ int n;
+ if (buflen < 1) return 0;
+ n = vsnprintf(buf, buflen, fmt, ap);
+ if (n < 0) {
+ n = 0;
+ } else if (n >= (int) buflen) {
+ n = (int) buflen - 1;
+ }
+ buf[n] = '\0';
+ return n;
+}
+
+static int mg_snprintf(char *buf, size_t buflen, const char *fmt, ...) {
+ va_list ap;
+ int n;
+ va_start(ap, fmt);
+ n = mg_vsnprintf(buf, buflen, fmt, ap);
+ va_end(ap);
+ return n;
}
-static void send_http_error(struct mg_connection *, int, const char *,
- PRINTF_FORMAT_STRING(const char *fmt), ...)
- PRINTF_ARGS(4, 5);
-
+// Check whether full request is buffered. Return:
+// -1 if request is malformed
+// 0 if request is not yet fully buffered
+// >0 actual request length, including last \r\n\r\n
+static int get_request_len(const char *s, int buf_len) {
+ const unsigned char *buf = (unsigned char *) s;
+ int i;
+
+ for (i = 0; i < buf_len; i++) {
+ // Control characters are not allowed but >=128 are.
+ // Abort scan as soon as one malformed character is found.
+ if (!isprint(buf[i]) && buf[i] != '\r' && buf[i] != '\n' && buf[i] < 128) {
+ return -1;
+ } else if (buf[i] == '\n' && i + 1 < buf_len && buf[i + 1] == '\n') {
+ return i + 2;
+ } else if (buf[i] == '\n' && i + 2 < buf_len && buf[i + 1] == '\r' &&
+ buf[i + 2] == '\n') {
+ return i + 3;
+ }
+ }
+
+ return 0;
+}
-static void send_http_error(struct mg_connection *conn, int status,
- const char *reason, const char *fmt, ...) {
- char buf[MG_BUF_LEN];
- va_list ap;
- int len = 0;
+// Skip the characters until one of the delimiters characters found.
+// 0-terminate resulting word. Skip the rest of the delimiters if any.
+// Advance pointer to buffer to the next word. Return found 0-terminated word.
+static char *skip(char **buf, const char *delimiters) {
+ char *p, *begin_word, *end_word, *end_delimiters;
- conn->status_code = status;
- if (conn->ctx->callbacks.http_error == NULL ||
- conn->ctx->callbacks.http_error(conn, status)) {
- buf[0] = '\0';
+ begin_word = *buf;
+ end_word = begin_word + strcspn(begin_word, delimiters);
+ end_delimiters = end_word + strspn(end_word, delimiters);
- // Errors 1xx, 204 and 304 MUST NOT send a body
- if (status > 199 && status != 204 && status != 304) {
- len = mg_snprintf(conn, buf, sizeof(buf), "Error %d: %s", status, reason);
- buf[len++] = '\n';
+ for (p = end_word; p < end_delimiters; p++) {
+ *p = '\0';
+ }
- va_start(ap, fmt);
- len += mg_vsnprintf(conn, buf + len, sizeof(buf) - len, fmt, ap);
- va_end(ap);
- }
- DEBUG_TRACE(("[%s]", buf));
+ *buf = end_delimiters;
- mg_printf(conn, "HTTP/1.1 %d %s\r\n"
- "Content-Length: %d\r\n"
- "Connection: %s\r\n\r\n", status, reason, len,
- suggest_connection_header(conn));
- conn->num_bytes_sent += mg_printf(conn, "%s", buf);
- }
+ return begin_word;
}
-#if defined(_WIN32) && !defined(__SYMBIAN32__)
-static int pthread_mutex_init(pthread_mutex_t *mutex, void *unused) {
- (void) unused;
- *mutex = CreateMutex(NULL, FALSE, NULL);
- return *mutex == NULL ? -1 : 0;
+// Parse HTTP headers from the given buffer, advance buffer to the point
+// where parsing stopped.
+static void parse_http_headers(char **buf, struct mg_connection *ri) {
+ size_t i;
+
+ for (i = 0; i < ARRAY_SIZE(ri->http_headers); i++) {
+ ri->http_headers[i].name = skip(buf, ": ");
+ ri->http_headers[i].value = skip(buf, "\r\n");
+ if (ri->http_headers[i].name[0] == '\0')
+ break;
+ ri->num_headers = i + 1;
+ }
+}
+
+static const char *status_code_to_str(int status_code) {
+ switch (status_code) {
+ case 200: return "OK";
+ case 201: return "Created";
+ case 204: return "No Content";
+ case 301: return "Moved Permanently";
+ case 302: return "Found";
+ case 304: return "Not Modified";
+ case 400: return "Bad Request";
+ case 403: return "Forbidden";
+ case 404: return "Not Found";
+ case 405: return "Method Not Allowed";
+ case 409: return "Conflict";
+ case 411: return "Length Required";
+ case 413: return "Request Entity Too Large";
+ case 415: return "Unsupported Media Type";
+ case 423: return "Locked";
+ case 500: return "Server Error";
+ case 501: return "Not Implemented";
+ default: return "Server Error";
+ }
+}
+
+static int call_user(struct connection *conn, enum mg_event ev) {
+ return conn != NULL && conn->server != NULL &&
+ conn->server->event_handler != NULL ?
+ conn->server->event_handler(&conn->mg_conn, ev) : MG_FALSE;
+}
+
+static void send_http_error(struct connection *conn, int code,
+ const char *fmt, ...) {
+ const char *message = status_code_to_str(code);
+ const char *rewrites = conn->server->config_options[URL_REWRITES];
+ char headers[200], body[200];
+ struct vec a, b;
+ va_list ap;
+ int body_len, headers_len, match_code;
+
+ conn->mg_conn.status_code = code;
+
+ // Invoke error handler if it is set
+ if (call_user(conn, MG_HTTP_ERROR) == MG_TRUE) {
+ close_local_endpoint(conn);
+ return;
+ }
+
+ // Handle error code rewrites
+ while ((rewrites = next_option(rewrites, &a, &b)) != NULL) {
+ if ((match_code = atoi(a.ptr)) > 0 && match_code == code) {
+ struct mg_connection *c = &conn->mg_conn;
+ c->status_code = 302;
+ mg_printf(c, "HTTP/1.1 %d Moved\r\n"
+ "Location: %.*s?code=%d&orig_uri=%s&query_string=%s\r\n\r\n",
+ c->status_code, b.len, b.ptr, code, c->uri,
+ c->query_string == NULL ? "" : c->query_string);
+ close_local_endpoint(conn);
+ return;
+ }
+ }
+
+ body_len = mg_snprintf(body, sizeof(body), "%d %s\n", code, message);
+ if (fmt != NULL) {
+ va_start(ap, fmt);
+ body_len += mg_vsnprintf(body + body_len, sizeof(body) - body_len, fmt, ap);
+ va_end(ap);
+ }
+ if ((code >= 300 && code <= 399) || code == 204) {
+ // 3xx errors do not have body
+ body_len = 0;
+ }
+ headers_len = mg_snprintf(headers, sizeof(headers),
+ "HTTP/1.1 %d %s\r\nContent-Length: %d\r\n"
+ "Content-Type: text/plain\r\n\r\n",
+ code, message, body_len);
+ ns_send(conn->ns_conn, headers, headers_len);
+ ns_send(conn->ns_conn, body, body_len);
+ close_local_endpoint(conn); // This will write to the log file
+}
+
+static void write_chunk(struct connection *conn, const char *buf, int len) {
+ char chunk_size[50];
+ int n = mg_snprintf(chunk_size, sizeof(chunk_size), "%X\r\n", len);
+ ns_send(conn->ns_conn, chunk_size, n);
+ ns_send(conn->ns_conn, buf, len);
+ ns_send(conn->ns_conn, "\r\n", 2);
}
-static int pthread_mutex_destroy(pthread_mutex_t *mutex) {
- return CloseHandle(*mutex) == 0 ? -1 : 0;
-}
+int mg_printf(struct mg_connection *conn, const char *fmt, ...) {
+ struct connection *c = MG_CONN_2_CONN(conn);
+ int len;
+ va_list ap;
-static int pthread_mutex_lock(pthread_mutex_t *mutex) {
- return WaitForSingleObject(*mutex, INFINITE) == WAIT_OBJECT_0? 0 : -1;
-}
+ va_start(ap, fmt);
+ len = ns_vprintf(c->ns_conn, fmt, ap);
+ va_end(ap);
-static int pthread_mutex_unlock(pthread_mutex_t *mutex) {
- return ReleaseMutex(*mutex) == 0 ? -1 : 0;
+ return len;
}
-static int pthread_cond_init(pthread_cond_t *cv, const void *unused) {
- (void) unused;
- cv->signal = CreateEvent(NULL, FALSE, FALSE, NULL);
- cv->broadcast = CreateEvent(NULL, TRUE, FALSE, NULL);
- return cv->signal != NULL && cv->broadcast != NULL ? 0 : -1;
+static void ns_forward(struct ns_connection *from, struct ns_connection *to) {
+ DBG(("%p -> %p %zu bytes", from, to, from->recv_iobuf.len));
+ ns_send(to, from->recv_iobuf.buf, from->recv_iobuf.len);
+ iobuf_remove(&from->recv_iobuf, from->recv_iobuf.len);
}
-static int pthread_cond_wait(pthread_cond_t *cv, pthread_mutex_t *mutex) {
- HANDLE handles[] = {cv->signal, cv->broadcast};
- ReleaseMutex(*mutex);
- WaitForMultipleObjects(2, handles, FALSE, INFINITE);
- return WaitForSingleObject(*mutex, INFINITE) == WAIT_OBJECT_0? 0 : -1;
-}
+#ifndef MONGOOSE_NO_CGI
+#ifdef _WIN32
+struct threadparam {
+ sock_t s;
+ HANDLE hPipe;
+};
-static int pthread_cond_signal(pthread_cond_t *cv) {
- return SetEvent(cv->signal) == 0 ? -1 : 0;
+static int wait_until_ready(sock_t sock, int for_read) {
+ fd_set set;
+ FD_ZERO(&set);
+ FD_SET(sock, &set);
+ select(sock + 1, for_read ? &set : 0, for_read ? 0 : &set, 0, 0);
+ return 1;
+}
+
+static void *push_to_stdin(void *arg) {
+ struct threadparam *tp = (struct threadparam *)arg;
+ int n, sent, stop = 0;
+ DWORD k;
+ char buf[IOBUF_SIZE];
+
+ while (!stop && wait_until_ready(tp->s, 1) &&
+ (n = recv(tp->s, buf, sizeof(buf), 0)) > 0) {
+ if (n == -1 && GetLastError() == WSAEWOULDBLOCK) continue;
+ for (sent = 0; !stop && sent < n; sent += k) {
+ if (!WriteFile(tp->hPipe, buf + sent, n - sent, &k, 0)) stop = 1;
+ }
+ }
+ DBG(("%s", "FORWARED EVERYTHING TO CGI"));
+ CloseHandle(tp->hPipe);
+ free(tp);
+ _endthread();
+ return NULL;
+}
+
+static void *pull_from_stdout(void *arg) {
+ struct threadparam *tp = (struct threadparam *)arg;
+ int k, stop = 0;
+ DWORD n, sent;
+ char buf[IOBUF_SIZE];
+
+ while (!stop && ReadFile(tp->hPipe, buf, sizeof(buf), &n, NULL)) {
+ for (sent = 0; !stop && sent < n; sent += k) {
+ if (wait_until_ready(tp->s, 0) &&
+ (k = send(tp->s, buf + sent, n - sent, 0)) <= 0) stop = 1;
+ }
+ }
+ DBG(("%s", "EOF FROM CGI"));
+ CloseHandle(tp->hPipe);
+ shutdown(tp->s, 2); // Without this, IO thread may get truncated data
+ closesocket(tp->s);
+ free(tp);
+ _endthread();
+ return NULL;
+}
+
+static void spawn_stdio_thread(sock_t sock, HANDLE hPipe,
+ void *(*func)(void *)) {
+ struct threadparam *tp = (struct threadparam *)malloc(sizeof(*tp));
+ if (tp != NULL) {
+ tp->s = sock;
+ tp->hPipe = hPipe;
+ mg_start_thread(func, tp);
+ }
+}
+
+static void abs_path(const char *utf8_path, char *abs_path, size_t len) {
+ wchar_t buf[MAX_PATH_SIZE], buf2[MAX_PATH_SIZE];
+ to_wchar(utf8_path, buf, ARRAY_SIZE(buf));
+ GetFullPathNameW(buf, ARRAY_SIZE(buf2), buf2, NULL);
+ WideCharToMultiByte(CP_UTF8, 0, buf2, wcslen(buf2) + 1, abs_path, len, 0, 0);
+}
+
+static process_id_t start_process(char *interp, const char *cmd,
+ const char *env, const char *envp[],
+ const char *dir, sock_t sock) {
+ STARTUPINFOW si = {0};
+ PROCESS_INFORMATION pi = {0};
+ HANDLE a[2], b[2], me = GetCurrentProcess();
+ wchar_t wcmd[MAX_PATH_SIZE], full_dir[MAX_PATH_SIZE];
+ char buf[MAX_PATH_SIZE], buf4[MAX_PATH_SIZE], buf5[MAX_PATH_SIZE],
+ cmdline[MAX_PATH_SIZE], *p;
+ DWORD flags = DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS;
+ FILE *fp;
+
+ si.cb = sizeof(si);
+ si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
+ si.wShowWindow = SW_HIDE;
+ si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
+
+ CreatePipe(&a[0], &a[1], NULL, 0);
+ CreatePipe(&b[0], &b[1], NULL, 0);
+ DuplicateHandle(me, a[0], me, &si.hStdInput, 0, TRUE, flags);
+ DuplicateHandle(me, b[1], me, &si.hStdOutput, 0, TRUE, flags);
+
+ if (interp == NULL && (fp = fopen(cmd, "r")) != NULL) {
+ buf[0] = buf[1] = '\0';
+ fgets(buf, sizeof(buf), fp);
+ buf[sizeof(buf) - 1] = '\0';
+ if (buf[0] == '#' && buf[1] == '!') {
+ interp = buf + 2;
+ for (p = interp + strlen(interp);
+ isspace(* (uint8_t *) p) && p > interp; p--) *p = '\0';
+ }
+ fclose(fp);
+ }
+
+ if (interp != NULL) {
+ abs_path(interp, buf4, ARRAY_SIZE(buf4));
+ interp = buf4;
+ }
+ abs_path(dir, buf5, ARRAY_SIZE(buf5));
+ to_wchar(dir, full_dir, ARRAY_SIZE(full_dir));
+ mg_snprintf(cmdline, sizeof(cmdline), "%s%s\"%s\"",
+ interp ? interp : "", interp ? " " : "", cmd);
+ to_wchar(cmdline, wcmd, ARRAY_SIZE(wcmd));
+
+ if (CreateProcessW(NULL, wcmd, NULL, NULL, TRUE, CREATE_NEW_PROCESS_GROUP,
+ (void *) env, full_dir, &si, &pi) != 0) {
+ spawn_stdio_thread(sock, a[1], push_to_stdin);
+ spawn_stdio_thread(sock, b[0], pull_from_stdout);
+ } else {
+ CloseHandle(a[1]);
+ CloseHandle(b[0]);
+ closesocket(sock);
+ }
+ DBG(("CGI command: [%ls] -> %p", wcmd, pi.hProcess));
+
+ CloseHandle(si.hStdOutput);
+ CloseHandle(si.hStdInput);
+ CloseHandle(a[0]);
+ CloseHandle(b[1]);
+ CloseHandle(pi.hThread);
+ CloseHandle(pi.hProcess);
+
+ return pi.hProcess;
}
+#else
+static process_id_t start_process(const char *interp, const char *cmd,
+ const char *env, const char *envp[],
+ const char *dir, sock_t sock) {
+ char buf[500];
+ process_id_t pid = fork();
+ (void) env;
+
+ if (pid == 0) {
+ (void) chdir(dir);
+ (void) dup2(sock, 0);
+ (void) dup2(sock, 1);
+ closesocket(sock);
+
+ // After exec, all signal handlers are restored to their default values,
+ // with one exception of SIGCHLD. According to POSIX.1-2001 and Linux's
+ // implementation, SIGCHLD's handler will leave unchanged after exec
+ // if it was set to be ignored. Restore it to default action.
+ signal(SIGCHLD, SIG_DFL);
+
+ if (interp == NULL) {
+ execle(cmd, cmd, NULL, envp);
+ } else {
+ execle(interp, interp, cmd, NULL, envp);
+ }
+ snprintf(buf, sizeof(buf), "Status: 500\r\n\r\n"
+ "500 Server Error: %s%s%s: %s", interp == NULL ? "" : interp,
+ interp == NULL ? "" : " ", cmd, strerror(errno));
+ send(1, buf, strlen(buf), 0);
+ exit(EXIT_FAILURE); // exec call failed
+ }
+
+ return pid;
+}
+#endif // _WIN32
-static int pthread_cond_broadcast(pthread_cond_t *cv) {
- // Implementation with PulseEvent() has race condition, see
- // http://www.cs.wustl.edu/~schmidt/win32-cv-1.html
- return PulseEvent(cv->broadcast) == 0 ? -1 : 0;
-}
+// This structure helps to create an environment for the spawned CGI program.
+// Environment is an array of "VARIABLE=VALUE\0" ASCIIZ strings,
+// last element must be NULL.
+// However, on Windows there is a requirement that all these VARIABLE=VALUE\0
+// strings must reside in a contiguous buffer. The end of the buffer is
+// marked by two '\0' characters.
+// We satisfy both worlds: we create an envp array (which is vars), all
+// entries are actually pointers inside buf.
+struct cgi_env_block {
+ struct mg_connection *conn;
+ char buf[CGI_ENVIRONMENT_SIZE]; // Environment buffer
+ const char *vars[MAX_CGI_ENVIR_VARS]; // char *envp[]
+ int len; // Space taken
+ int nvars; // Number of variables in envp[]
+};
+
+// Append VARIABLE=VALUE\0 string to the buffer, and add a respective
+// pointer into the vars array.
+static char *addenv(struct cgi_env_block *block, const char *fmt, ...) {
+ int n, space;
+ char *added;
+ va_list ap;
+
+ // Calculate how much space is left in the buffer
+ space = sizeof(block->buf) - block->len - 2;
+ assert(space >= 0);
+
+ // Make a pointer to the free space int the buffer
+ added = block->buf + block->len;
+
+ // Copy VARIABLE=VALUE\0 string into the free space
+ va_start(ap, fmt);
+ n = mg_vsnprintf(added, (size_t) space, fmt, ap);
+ va_end(ap);
+
+ // Make sure we do not overflow buffer and the envp array
+ if (n > 0 && n + 1 < space &&
+ block->nvars < (int) ARRAY_SIZE(block->vars) - 2) {
+ // Append a pointer to the added string into the envp array
+ block->vars[block->nvars++] = added;
+ // Bump up used length counter. Include \0 terminator
+ block->len += n + 1;
+ }
+
+ return added;
+}
+
+static void addenv2(struct cgi_env_block *blk, const char *name) {
+ const char *s;
+ if ((s = getenv(name)) != NULL) addenv(blk, "%s=%s", name, s);
+}
+
+static void prepare_cgi_environment(struct connection *conn,
+ const char *prog,
+ struct cgi_env_block *blk) {
+ struct mg_connection *ri = &conn->mg_conn;
+ const char *s, *slash;
+ char *p, **opts = conn->server->config_options;
+ int i;
+
+ blk->len = blk->nvars = 0;
+ blk->conn = ri;
+
+ if ((s = getenv("SERVER_NAME")) != NULL) {
+ addenv(blk, "SERVER_NAME=%s", s);
+ } else {
+ addenv(blk, "SERVER_NAME=%s", ri->local_ip);
+ }
+ addenv(blk, "SERVER_ROOT=%s", opts[DOCUMENT_ROOT]);
+ addenv(blk, "DOCUMENT_ROOT=%s", opts[DOCUMENT_ROOT]);
+ addenv(blk, "SERVER_SOFTWARE=%s/%s", "Mongoose", MONGOOSE_VERSION);
+
+ // Prepare the environment block
+ addenv(blk, "%s", "GATEWAY_INTERFACE=CGI/1.1");
+ addenv(blk, "%s", "SERVER_PROTOCOL=HTTP/1.1");
+ addenv(blk, "%s", "REDIRECT_STATUS=200"); // For PHP
+
+ // TODO(lsm): fix this for IPv6 case
+ //addenv(blk, "SERVER_PORT=%d", ri->remote_port);
+
+ addenv(blk, "REQUEST_METHOD=%s", ri->request_method);
+ addenv(blk, "REMOTE_ADDR=%s", ri->remote_ip);
+ addenv(blk, "REMOTE_PORT=%d", ri->remote_port);
+ addenv(blk, "REQUEST_URI=%s%s%s", ri->uri,
+ ri->query_string == NULL ? "" : "?",
+ ri->query_string == NULL ? "" : ri->query_string);
+
+ // SCRIPT_NAME
+ if (conn->path_info != NULL) {
+ addenv(blk, "SCRIPT_NAME=%.*s",
+ (int) (strlen(ri->uri) - strlen(conn->path_info)), ri->uri);
+ addenv(blk, "PATH_INFO=%s", conn->path_info);
+ } else {
+ s = strrchr(prog, '/');
+ slash = strrchr(ri->uri, '/');
+ addenv(blk, "SCRIPT_NAME=%.*s%s",
+ slash == NULL ? 0 : (int) (slash - ri->uri), ri->uri,
+ s == NULL ? prog : s);
+ }
+
+ addenv(blk, "SCRIPT_FILENAME=%s", prog);
+ addenv(blk, "PATH_TRANSLATED=%s", prog);
+ addenv(blk, "HTTPS=%s", conn->ns_conn->ssl != NULL ? "on" : "off");
+
+ if ((s = mg_get_header(ri, "Content-Type")) != NULL)
+ addenv(blk, "CONTENT_TYPE=%s", s);
+
+ if (ri->query_string != NULL)
+ addenv(blk, "QUERY_STRING=%s", ri->query_string);
+
+ if ((s = mg_get_header(ri, "Content-Length")) != NULL)
+ addenv(blk, "CONTENT_LENGTH=%s", s);
+
+ addenv2(blk, "PATH");
+ addenv2(blk, "TMP");
+ addenv2(blk, "TEMP");
+ addenv2(blk, "TMPDIR");
+ addenv2(blk, "PERLLIB");
+ addenv2(blk, ENV_EXPORT_TO_CGI);
+
+#if defined(_WIN32)
+ addenv2(blk, "COMSPEC");
+ addenv2(blk, "SYSTEMROOT");
+ addenv2(blk, "SystemDrive");
+ addenv2(blk, "ProgramFiles");
+ addenv2(blk, "ProgramFiles(x86)");
+ addenv2(blk, "CommonProgramFiles(x86)");
+#else
+ addenv2(blk, "LD_LIBRARY_PATH");
+#endif // _WIN32
+
+ // Add all headers as HTTP_* variables
+ for (i = 0; i < ri->num_headers; i++) {
+ p = addenv(blk, "HTTP_%s=%s",
+ ri->http_headers[i].name, ri->http_headers[i].value);
+
+ // Convert variable name into uppercase, and change - to _
+ for (; *p != '=' && *p != '\0'; p++) {
+ if (*p == '-')
+ *p = '_';
+ *p = (char) toupper(* (unsigned char *) p);
+ }
+ }
+
+ blk->vars[blk->nvars++] = NULL;
+ blk->buf[blk->len++] = '\0';
+
+ assert(blk->nvars < (int) ARRAY_SIZE(blk->vars));
+ assert(blk->len > 0);
+ assert(blk->len < (int) sizeof(blk->buf));
+}
+
+static const char cgi_status[] = "HTTP/1.1 200 OK\r\n";
+
+static void open_cgi_endpoint(struct connection *conn, const char *prog) {
+ struct cgi_env_block blk;
+ char dir[MAX_PATH_SIZE];
+ const char *p;
+ sock_t fds[2];
+
+ prepare_cgi_environment(conn, prog, &blk);
+ // CGI must be executed in its own directory. 'dir' must point to the
+ // directory containing executable program, 'p' must point to the
+ // executable program name relative to 'dir'.
+ if ((p = strrchr(prog, '/')) == NULL) {
+ mg_snprintf(dir, sizeof(dir), "%s", ".");
+ } else {
+ mg_snprintf(dir, sizeof(dir), "%.*s", (int) (p - prog), prog);
+ }
+
+ // Try to create socketpair in a loop until success. ns_socketpair()
+ // can be interrupted by a signal and fail.
+ // TODO(lsm): use sigaction to restart interrupted syscall
+ do {
+ ns_socketpair(fds);
+ } while (fds[0] == INVALID_SOCKET);
+
+ if (start_process(conn->server->config_options[CGI_INTERPRETER],
+ prog, blk.buf, blk.vars, dir, fds[1]) > 0) {
+ conn->endpoint_type = EP_CGI;
+ conn->endpoint.nc = ns_add_sock(&conn->server->ns_server,
+ fds[0], conn);
+ conn->endpoint.nc->flags |= MG_CGI_CONN;
+ ns_send(conn->ns_conn, cgi_status, sizeof(cgi_status) - 1);
+ conn->mg_conn.status_code = 200;
+ conn->ns_conn->flags |= NSF_BUFFER_BUT_DONT_SEND;
+ // Pass POST data to the CGI process
+ conn->endpoint.nc->send_iobuf = conn->ns_conn->recv_iobuf;
+ iobuf_init(&conn->ns_conn->recv_iobuf, 0);
+ } else {
+ closesocket(fds[0]);
+ send_http_error(conn, 500, "start_process(%s) failed", prog);
+ }
-static int pthread_cond_destroy(pthread_cond_t *cv) {
- return CloseHandle(cv->signal) && CloseHandle(cv->broadcast) ? 0 : -1;
+#ifndef _WIN32
+ closesocket(fds[1]); // On Windows, CGI stdio thread closes that socket
+#endif
}
-// For Windows, change all slashes to backslashes in path names.
-static void change_slashes_to_backslashes(char *path) {
- int i;
+static void on_cgi_data(struct ns_connection *nc) {
+ struct connection *conn = (struct connection *) nc->connection_data;
+ const char *status = "500";
+ struct mg_connection c;
+
+ if (!conn) return;
+
+ // Copy CGI data from CGI socket to the client send buffer
+ ns_forward(nc, conn->ns_conn);
+
+ // If reply has not been parsed yet, parse it
+ if (conn->ns_conn->flags & NSF_BUFFER_BUT_DONT_SEND) {
+ struct iobuf *io = &conn->ns_conn->send_iobuf;
+ int s_len = sizeof(cgi_status) - 1;
+ int len = get_request_len(io->buf + s_len, io->len - s_len);
+ char buf[MAX_REQUEST_SIZE], *s = buf;
+
+ if (len == 0) return;
+
+ if (len < 0 || len > (int) sizeof(buf)) {
+ len = io->len;
+ iobuf_remove(io, io->len);
+ send_http_error(conn, 500, "CGI program sent malformed headers: [%.*s]",
+ len, io->buf);
+ } else {
+ memset(&c, 0, sizeof(c));
+ memcpy(buf, io->buf + s_len, len);
+ buf[len - 1] = '\0';
+ parse_http_headers(&s, &c);
+ if (mg_get_header(&c, "Location") != NULL) {
+ status = "302";
+ } else if ((status = (char *) mg_get_header(&c, "Status")) == NULL) {
+ status = "200";
+ }
+ memcpy(io->buf + 9, status, 3);
+ conn->mg_conn.status_code = atoi(status);
+ }
+ conn->ns_conn->flags &= ~NSF_BUFFER_BUT_DONT_SEND;
+ }
+}
+#endif // !MONGOOSE_NO_CGI
+
+static char *mg_strdup(const char *str) {
+ char *copy = (char *) malloc(strlen(str) + 1);
+ if (copy != NULL) {
+ strcpy(copy, str);
+ }
+ return copy;
+}
- for (i = 0; path[i] != '\0'; i++) {
- if (path[i] == '/')
- path[i] = '\\';
- // i > 0 check is to preserve UNC paths, like \\server\file.txt
- if (path[i] == '\\' && i > 0)
- while (path[i + 1] == '\\' || path[i + 1] == '/')
- (void) memmove(path + i + 1,
- path + i + 2, strlen(path + i + 1));
- }
+static int isbyte(int n) {
+ return n >= 0 && n <= 255;
}
-// Encode 'path' which is assumed UTF-8 string, into UNICODE string.
-// wbuf and wbuf_len is a target buffer and its length.
-static void to_unicode(const char *path, wchar_t *wbuf, size_t wbuf_len) {
- char buf[PATH_MAX], buf2[PATH_MAX];
+static int parse_net(const char *spec, uint32_t *net, uint32_t *mask) {
+ int n, a, b, c, d, slash = 32, len = 0;
- mg_strlcpy(buf, path, sizeof(buf));
- change_slashes_to_backslashes(buf);
+ if ((sscanf(spec, "%d.%d.%d.%d/%d%n", &a, &b, &c, &d, &slash, &n) == 5 ||
+ sscanf(spec, "%d.%d.%d.%d%n", &a, &b, &c, &d, &n) == 4) &&
+ isbyte(a) && isbyte(b) && isbyte(c) && isbyte(d) &&
+ slash >= 0 && slash < 33) {
+ len = n;
+ *net = ((uint32_t)a << 24) | ((uint32_t)b << 16) | ((uint32_t)c << 8) | d;
+ *mask = slash ? 0xffffffffU << (32 - slash) : 0;
+ }
- // Convert to Unicode and back. If doubly-converted string does not
- // match the original, something is fishy, reject.
- memset(wbuf, 0, wbuf_len * sizeof(wchar_t));
- MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, (int) wbuf_len);
- WideCharToMultiByte(CP_UTF8, 0, wbuf, (int) wbuf_len, buf2, sizeof(buf2),
- NULL, NULL);
- if (strcmp(buf, buf2) != 0) {
- wbuf[0] = L'\0';
- }
+ return len;
}
-#if defined(_WIN32_WCE)
-static time_t time(time_t *ptime) {
- time_t t;
- SYSTEMTIME st;
- FILETIME ft;
+// Verify given socket address against the ACL.
+// Return -1 if ACL is malformed, 0 if address is disallowed, 1 if allowed.
+static int check_acl(const char *acl, uint32_t remote_ip) {
+ int allowed, flag;
+ uint32_t net, mask;
+ struct vec vec;
+
+ // If any ACL is set, deny by default
+ allowed = acl == NULL ? '+' : '-';
- GetSystemTime(&st);
- SystemTimeToFileTime(&st, &ft);
- t = SYS2UNIX_TIME(ft.dwLowDateTime, ft.dwHighDateTime);
+ while ((acl = next_option(acl, &vec, NULL)) != NULL) {
+ flag = vec.ptr[0];
+ if ((flag != '+' && flag != '-') ||
+ parse_net(&vec.ptr[1], &net, &mask) == 0) {
+ return -1;
+ }
- if (ptime != NULL) {
- *ptime = t;
- }
+ if (net == (remote_ip & mask)) {
+ allowed = flag;
+ }
+ }
- return t;
+ return allowed == '+';
}
-static struct tm *localtime(const time_t *ptime, struct tm *ptm) {
- int64_t t = ((int64_t) *ptime) * RATE_DIFF + EPOCH_DIFF;
- FILETIME ft, lft;
- SYSTEMTIME st;
- TIME_ZONE_INFORMATION tzinfo;
+// Protect against directory disclosure attack by removing '..',
+// excessive '/' and '\' characters
+static void remove_double_dots_and_double_slashes(char *s) {
+ char *p = s;
+
+ while (*s != '\0') {
+ *p++ = *s++;
+ if (s[-1] == '/' || s[-1] == '\\') {
+ // Skip all following slashes, backslashes and double-dots
+ while (s[0] != '\0') {
+ if (s[0] == '/' || s[0] == '\\') { s++; }
+ else if (s[0] == '.' && s[1] == '.') { s += 2; }
+ else { break; }
+ }
+ }
+ }
+ *p = '\0';
+}
+
+int mg_url_decode(const char *src, int src_len, char *dst,
+ int dst_len, int is_form_url_encoded) {
+ int i, j, a, b;
+#define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W')
- if (ptm == NULL) {
- return NULL;
- }
+ for (i = j = 0; i < src_len && j < dst_len - 1; i++, j++) {
+ if (src[i] == '%' && i < src_len - 2 &&
+ isxdigit(* (const unsigned char *) (src + i + 1)) &&
+ isxdigit(* (const unsigned char *) (src + i + 2))) {
+ a = tolower(* (const unsigned char *) (src + i + 1));
+ b = tolower(* (const unsigned char *) (src + i + 2));
+ dst[j] = (char) ((HEXTOI(a) << 4) | HEXTOI(b));
+ i += 2;
+ } else if (is_form_url_encoded && src[i] == '+') {
+ dst[j] = ' ';
+ } else {
+ dst[j] = src[i];
+ }
+ }
- * (int64_t *) &ft = t;
- FileTimeToLocalFileTime(&ft, &lft);
- FileTimeToSystemTime(&lft, &st);
- ptm->tm_year = st.wYear - 1900;
- ptm->tm_mon = st.wMonth - 1;
- ptm->tm_wday = st.wDayOfWeek;
- ptm->tm_mday = st.wDay;
- ptm->tm_hour = st.wHour;
- ptm->tm_min = st.wMinute;
- ptm->tm_sec = st.wSecond;
- ptm->tm_yday = 0; // hope nobody uses this
- ptm->tm_isdst =
- GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_DAYLIGHT ? 1 : 0;
+ dst[j] = '\0'; // Null-terminate the destination
- return ptm;
+ return i >= src_len ? j : -1;
}
-static struct tm *gmtime(const time_t *ptime, struct tm *ptm) {
- // FIXME(lsm): fix this.
- return localtime(ptime, ptm);
+static int is_valid_http_method(const char *s) {
+ return !strcmp(s, "GET") || !strcmp(s, "POST") || !strcmp(s, "HEAD") ||
+ !strcmp(s, "CONNECT") || !strcmp(s, "PUT") || !strcmp(s, "DELETE") ||
+ !strcmp(s, "OPTIONS") || !strcmp(s, "PROPFIND") || !strcmp(s, "MKCOL");
}
-static size_t strftime(char *dst, size_t dst_size, const char *fmt,
- const struct tm *tm) {
- (void) snprintf(dst, dst_size, "implement strftime() for WinCE");
- return 0;
+// Parse HTTP request, fill in mg_request structure.
+// This function modifies the buffer by NUL-terminating
+// HTTP request components, header names and header values.
+// Note that len must point to the last \n of HTTP headers.
+static int parse_http_message(char *buf, int len, struct mg_connection *ri) {
+ int is_request, n;
+
+ // Reset the connection. Make sure that we don't touch fields that are
+ // set elsewhere: remote_ip, remote_port, server_param
+ ri->request_method = ri->uri = ri->http_version = ri->query_string = NULL;
+ ri->num_headers = ri->status_code = ri->is_websocket = ri->content_len = 0;
+
+ buf[len - 1] = '\0';
+
+ // RFC says that all initial whitespaces should be ingored
+ while (*buf != '\0' && isspace(* (unsigned char *) buf)) {
+ buf++;
+ }
+ ri->request_method = skip(&buf, " ");
+ ri->uri = skip(&buf, " ");
+ ri->http_version = skip(&buf, "\r\n");
+
+ // HTTP message could be either HTTP request or HTTP response, e.g.
+ // "GET / HTTP/1.0 ...." or "HTTP/1.0 200 OK ..."
+ is_request = is_valid_http_method(ri->request_method);
+ if ((is_request && memcmp(ri->http_version, "HTTP/", 5) != 0) ||
+ (!is_request && memcmp(ri->request_method, "HTTP/", 5) != 0)) {
+ len = -1;
+ } else {
+ if (is_request) {
+ ri->http_version += 5;
+ }
+ parse_http_headers(&buf, ri);
+
+ if ((ri->query_string = strchr(ri->uri, '?')) != NULL) {
+ *(char *) ri->query_string++ = '\0';
+ }
+ n = (int) strlen(ri->uri);
+ mg_url_decode(ri->uri, n, (char *) ri->uri, n + 1, 0);
+ if (*ri->uri == '/' || *ri->uri == '.') {
+ remove_double_dots_and_double_slashes((char *) ri->uri);
+ }
+ }
+
+ return len;
}
-#endif
-// Windows happily opens files with some garbage at the end of file name.
-// For example, fopen("a.cgi ", "r") on Windows successfully opens
-// "a.cgi", despite one would expect an error back.
-// This function returns non-0 if path ends with some garbage.
-static int path_cannot_disclose_cgi(const char *path) {
- static const char *allowed_last_characters = "_-";
- int last = path[strlen(path) - 1];
- return isalnum(last) || strchr(allowed_last_characters, last) != NULL;
+static int lowercase(const char *s) {
+ return tolower(* (const unsigned char *) s);
}
-static int mg_stat(struct mg_connection *conn, const char *path,
- struct file *filep) {
- wchar_t wbuf[PATH_MAX];
- WIN32_FILE_ATTRIBUTE_DATA info;
+static int mg_strcasecmp(const char *s1, const char *s2) {
+ int diff;
- if (!is_file_in_memory(conn, path, filep)) {
- to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
- if (GetFileAttributesExW(wbuf, GetFileExInfoStandard, &info) != 0) {
- filep->size = MAKEUQUAD(info.nFileSizeLow, info.nFileSizeHigh);
- filep->modification_time = SYS2UNIX_TIME(
- info.ftLastWriteTime.dwLowDateTime,
- info.ftLastWriteTime.dwHighDateTime);
- filep->is_directory = info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
- // If file name is fishy, reset the file structure and return error.
- // Note it is important to reset, not just return the error, cause
- // functions like is_file_opened() check the struct.
- if (!filep->is_directory && !path_cannot_disclose_cgi(path)) {
- memset(filep, 0, sizeof(*filep));
- }
- }
- }
+ do {
+ diff = lowercase(s1++) - lowercase(s2++);
+ } while (diff == 0 && s1[-1] != '\0');
- return filep->membuf != NULL || filep->modification_time != 0;
+ return diff;
}
-static int mg_remove(const char *path) {
- wchar_t wbuf[PATH_MAX];
- to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
- return DeleteFileW(wbuf) ? 0 : -1;
-}
+static int mg_strncasecmp(const char *s1, const char *s2, size_t len) {
+ int diff = 0;
-static int mg_mkdir(const char *path, int mode) {
- char buf[PATH_MAX];
- wchar_t wbuf[PATH_MAX];
+ if (len > 0)
+ do {
+ diff = lowercase(s1++) - lowercase(s2++);
+ } while (diff == 0 && s1[-1] != '\0' && --len > 0);
- (void) mode;
- mg_strlcpy(buf, path, sizeof(buf));
- change_slashes_to_backslashes(buf);
+ return diff;
+}
- (void) MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, ARRAY_SIZE(wbuf));
+// Return HTTP header value, or NULL if not found.
+const char *mg_get_header(const struct mg_connection *ri, const char *s) {
+ int i;
+
+ for (i = 0; i < ri->num_headers; i++)
+ if (!mg_strcasecmp(s, ri->http_headers[i].name))
+ return ri->http_headers[i].value;
+
+ return NULL;
+}
+
+// Perform case-insensitive match of string against pattern
+int mg_match_prefix(const char *pattern, int pattern_len, const char *str) {
+ const char *or_str;
+ int len, res, i = 0, j = 0;
+
+ if ((or_str = (const char *) memchr(pattern, '|', pattern_len)) != NULL) {
+ res = mg_match_prefix(pattern, or_str - pattern, str);
+ return res > 0 ? res : mg_match_prefix(or_str + 1,
+ (pattern + pattern_len) - (or_str + 1), str);
+ }
+
+ for (; i < pattern_len; i++, j++) {
+ if (pattern[i] == '?' && str[j] != '\0') {
+ continue;
+ } else if (pattern[i] == '$') {
+ return str[j] == '\0' ? j : -1;
+ } else if (pattern[i] == '*') {
+ i++;
+ if (pattern[i] == '*') {
+ i++;
+ len = (int) strlen(str + j);
+ } else {
+ len = (int) strcspn(str + j, "/");
+ }
+ if (i == pattern_len) {
+ return j + len;
+ }
+ do {
+ res = mg_match_prefix(pattern + i, pattern_len - i, str + j + len);
+ } while (res == -1 && len-- > 0);
+ return res == -1 ? -1 : j + res + len;
+ } else if (lowercase(&pattern[i]) != lowercase(&str[j])) {
+ return -1;
+ }
+ }
+ return j;
+}
+
+// This function prints HTML pages, and expands "{{something}}" blocks
+// inside HTML by calling appropriate callback functions.
+// Note that {{@path/to/file}} construct outputs embedded file's contents,
+// which provides SSI-like functionality.
+void mg_template(struct mg_connection *conn, const char *s,
+ struct mg_expansion *expansions) {
+ int i, j, pos = 0, inside_marker = 0;
+
+ for (i = 0; s[i] != '\0'; i++) {
+ if (inside_marker == 0 && !memcmp(&s[i], "{{", 2)) {
+ if (i > pos) {
+ mg_send_data(conn, &s[pos], i - pos);
+ }
+ pos = i;
+ inside_marker = 1;
+ }
+ if (inside_marker == 1 && !memcmp(&s[i], "}}", 2)) {
+ for (j = 0; expansions[j].keyword != NULL; j++) {
+ const char *kw = expansions[j].keyword;
+ if ((int) strlen(kw) == i - (pos + 2) &&
+ memcmp(kw, &s[pos + 2], i - (pos + 2)) == 0) {
+ expansions[j].handler(conn);
+ pos = i + 2;
+ break;
+ }
+ }
+ inside_marker = 0;
+ }
+ }
+ if (i > pos) {
+ mg_send_data(conn, &s[pos], i - pos);
+ }
+}
+
+#ifndef MONGOOSE_NO_FILESYSTEM
+static int must_hide_file(struct connection *conn, const char *path) {
+ const char *pw_pattern = "**" PASSWORDS_FILE_NAME "$";
+ const char *pattern = conn->server->config_options[HIDE_FILES_PATTERN];
+ return mg_match_prefix(pw_pattern, strlen(pw_pattern), path) > 0 ||
+ (pattern != NULL && mg_match_prefix(pattern, strlen(pattern), path) > 0);
+}
+
+// Return 1 if real file has been found, 0 otherwise
+static int convert_uri_to_file_name(struct connection *conn, char *buf,
+ size_t buf_len, file_stat_t *st) {
+ struct vec a, b;
+ const char *rewrites = conn->server->config_options[URL_REWRITES];
+ const char *root = conn->server->config_options[DOCUMENT_ROOT];
+#ifndef MONGOOSE_NO_CGI
+ const char *cgi_pat = conn->server->config_options[CGI_PATTERN];
+ char *p;
+#endif
+ const char *uri = conn->mg_conn.uri;
+ const char *domain = mg_get_header(&conn->mg_conn, "Host");
+ int match_len, root_len = root == NULL ? 0 : strlen(root);
+
+ // Perform virtual hosting rewrites
+ if (rewrites != NULL && domain != NULL) {
+ const char *colon = strchr(domain, ':');
+ int domain_len = colon == NULL ? (int) strlen(domain) : colon - domain;
+
+ while ((rewrites = next_option(rewrites, &a, &b)) != NULL) {
+ if (a.len > 1 && a.ptr[0] == '@' && a.len == domain_len + 1 &&
+ mg_strncasecmp(a.ptr + 1, domain, domain_len) == 0) {
+ root = b.ptr;
+ root_len = b.len;
+ break;
+ }
+ }
+ }
+
+ // No filesystem access
+ if (root == NULL || root_len == 0) return 0;
+
+ // Handle URL rewrites
+ mg_snprintf(buf, buf_len, "%.*s%s", root_len, root, uri);
+ rewrites = conn->server->config_options[URL_REWRITES]; // Re-initialize!
+ while ((rewrites = next_option(rewrites, &a, &b)) != NULL) {
+ if ((match_len = mg_match_prefix(a.ptr, a.len, uri)) > 0) {
+ mg_snprintf(buf, buf_len, "%.*s%s", (int) b.len, b.ptr, uri + match_len);
+ break;
+ }
+ }
+
+ if (stat(buf, st) == 0) return 1;
+
+#ifndef MONGOOSE_NO_CGI
+ // Support PATH_INFO for CGI scripts.
+ for (p = buf + strlen(root) + 2; *p != '\0'; p++) {
+ if (*p == '/') {
+ *p = '\0';
+ if (mg_match_prefix(cgi_pat, strlen(cgi_pat), buf) > 0 &&
+ !stat(buf, st)) {
+ DBG(("!!!! [%s]", buf));
+ *p = '/';
+ conn->path_info = mg_strdup(p);
+ *p = '\0';
+ return 1;
+ }
+ *p = '/';
+ }
+ }
+#endif
- return CreateDirectoryW(wbuf, NULL) ? 0 : -1;
+ return 0;
}
+#endif // MONGOOSE_NO_FILESYSTEM
-// Implementation of POSIX opendir/closedir/readdir for Windows.
-static DIR * opendir(const char *name) {
- DIR *dir = NULL;
- wchar_t wpath[PATH_MAX];
- DWORD attrs;
-
- if (name == NULL) {
- SetLastError(ERROR_BAD_ARGUMENTS);
- } else if ((dir = (DIR *) malloc(sizeof(*dir))) == NULL) {
- SetLastError(ERROR_NOT_ENOUGH_MEMORY);
- } else {
- to_unicode(name, wpath, ARRAY_SIZE(wpath));
- attrs = GetFileAttributesW(wpath);
- if (attrs != 0xFFFFFFFF &&
- ((attrs & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)) {
- (void) wcscat(wpath, L"\\*");
- dir->handle = FindFirstFileW(wpath, &dir->info);
- dir->result.d_name[0] = '\0';
- } else {
- free(dir);
- dir = NULL;
- }
- }
-
- return dir;
+static int should_keep_alive(const struct mg_connection *conn) {
+ struct connection *c = MG_CONN_2_CONN(conn);
+ const char *method = conn->request_method;
+ const char *http_version = conn->http_version;
+ const char *header = mg_get_header(conn, "Connection");
+ return method != NULL &&
+ (!strcmp(method, "GET") || c->endpoint_type == EP_USER) &&
+ ((header != NULL && !mg_strcasecmp(header, "keep-alive")) ||
+ (header == NULL && http_version && !strcmp(http_version, "1.1")));
}
-static int closedir(DIR *dir) {
- int result = 0;
+int mg_write(struct mg_connection *c, const void *buf, int len) {
+ struct connection *conn = MG_CONN_2_CONN(c);
+ return ns_send(conn->ns_conn, buf, len);
+}
- if (dir != NULL) {
- if (dir->handle != INVALID_HANDLE_VALUE)
- result = FindClose(dir->handle) ? 0 : -1;
+void mg_send_status(struct mg_connection *c, int status) {
+ if (c->status_code == 0) {
+ c->status_code = status;
+ mg_printf(c, "HTTP/1.1 %d %s\r\n", status, status_code_to_str(status));
+ }
+}
- free(dir);
- } else {
- result = -1;
- SetLastError(ERROR_BAD_ARGUMENTS);
- }
+void mg_send_header(struct mg_connection *c, const char *name, const char *v) {
+ if (c->status_code == 0) {
+ c->status_code = 200;
+ mg_printf(c, "HTTP/1.1 %d %s\r\n", 200, status_code_to_str(200));
+ }
+ mg_printf(c, "%s: %s\r\n", name, v);
+}
- return result;
+static void terminate_headers(struct mg_connection *c) {
+ struct connection *conn = MG_CONN_2_CONN(c);
+ if (!(conn->ns_conn->flags & MG_HEADERS_SENT)) {
+ mg_send_header(c, "Transfer-Encoding", "chunked");
+ mg_write(c, "\r\n", 2);
+ conn->ns_conn->flags |= MG_HEADERS_SENT;
+ }
}
-static struct dirent *readdir(DIR *dir) {
- struct dirent *result = 0;
+void mg_send_data(struct mg_connection *c, const void *data, int data_len) {
+ terminate_headers(c);
+ write_chunk(MG_CONN_2_CONN(c), (const char *) data, data_len);
+}
- if (dir) {
- if (dir->handle != INVALID_HANDLE_VALUE) {
- result = &dir->result;
- (void) WideCharToMultiByte(CP_UTF8, 0,
- dir->info.cFileName, -1, result->d_name,
- sizeof(result->d_name), NULL, NULL);
+void mg_printf_data(struct mg_connection *c, const char *fmt, ...) {
+ struct connection *conn = MG_CONN_2_CONN(c);
+ va_list ap;
+ int len;
+ char mem[IOBUF_SIZE], *buf = mem;
- if (!FindNextFileW(dir->handle, &dir->info)) {
- (void) FindClose(dir->handle);
- dir->handle = INVALID_HANDLE_VALUE;
- }
+ terminate_headers(c);
- } else {
- SetLastError(ERROR_FILE_NOT_FOUND);
- }
- } else {
- SetLastError(ERROR_BAD_ARGUMENTS);
- }
+ va_start(ap, fmt);
+ len = ns_avprintf(&buf, sizeof(mem), fmt, ap);
+ va_end(ap);
- return result;
+ if (len >= 0) {
+ write_chunk((struct connection *) conn, buf, len);
+ }
+ if (buf != mem && buf != NULL) {
+ free(buf);
+ }
}
-#define set_close_on_exec(x) // No FD_CLOEXEC on Windows
-
-int mg_start_thread(mg_thread_func_t f, void *p) {
- return (long)_beginthread((void (__cdecl *)(void *)) f, 0, p) == -1L ? -1 : 0;
+#if !defined(MONGOOSE_NO_WEBSOCKET) || !defined(MONGOOSE_NO_AUTH)
+static int is_big_endian(void) {
+ static const int n = 1;
+ return ((char *) &n)[0] == 0;
}
+#endif
-#if !defined(NO_SSL)
-static HANDLE dlopen(const char *dll_name, int flags) {
- wchar_t wbuf[PATH_MAX];
- (void) flags;
- to_unicode(dll_name, wbuf, ARRAY_SIZE(wbuf));
- return LoadLibraryW(wbuf);
-}
+#ifndef MONGOOSE_NO_WEBSOCKET
+// START OF SHA-1 code
+// Copyright(c) By Steve Reid <steve@edmweb.com>
+#define SHA1HANDSOFF
+#if defined(__sun)
+#include "solarisfixes.h"
#endif
-#if !defined(NO_CGI)
-#define SIGKILL 0
-static int kill(pid_t pid, int sig_num) {
- (void) TerminateProcess(pid, sig_num);
- (void) CloseHandle(pid);
- return 0;
-}
-
-static void trim_trailing_whitespaces(char *s) {
- char *e = s + strlen(s) - 1;
- while (e > s && isspace(* (unsigned char *) e)) {
- *e-- = '\0';
- }
-}
-
-static pid_t spawn_process(struct mg_connection *conn, const char *prog,
- char *envblk, char *envp[], int fd_stdin,
- int fd_stdout, const char *dir) {
- HANDLE me;
- char *p, *interp, full_interp[PATH_MAX], full_dir[PATH_MAX],
- cmdline[PATH_MAX], buf[PATH_MAX];
- struct file file = STRUCT_FILE_INITIALIZER;
- STARTUPINFOA si;
- PROCESS_INFORMATION pi = { 0 };
-
- (void) envp;
-
- memset(&si, 0, sizeof(si));
- si.cb = sizeof(si);
-
- // TODO(lsm): redirect CGI errors to the error log file
- si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
- si.wShowWindow = SW_HIDE;
-
- me = GetCurrentProcess();
- DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdin), me,
- &si.hStdInput, 0, TRUE, DUPLICATE_SAME_ACCESS);
- DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdout), me,
- &si.hStdOutput, 0, TRUE, DUPLICATE_SAME_ACCESS);
-
- // If CGI file is a script, try to read the interpreter line
- interp = conn->ctx->config[CGI_INTERPRETER];
- if (interp == NULL) {
- buf[0] = buf[1] = '\0';
-
- // Read the first line of the script into the buffer
- snprintf(cmdline, sizeof(cmdline), "%s%c%s", dir, '/', prog);
- if (mg_fopen(conn, cmdline, "r", &file)) {
- p = (char *) file.membuf;
- mg_fgets(buf, sizeof(buf), &file, &p);
- mg_fclose(&file);
- buf[sizeof(buf) - 1] = '\0';
- }
-
- if (buf[0] == '#' && buf[1] == '!') {
- trim_trailing_whitespaces(buf + 2);
- } else {
- buf[2] = '\0';
- }
- interp = buf + 2;
- }
-
- if (interp[0] != '\0') {
- GetFullPathNameA(interp, sizeof(full_interp), full_interp, NULL);
- interp = full_interp;
- }
- GetFullPathNameA(dir, sizeof(full_dir), full_dir, NULL);
-
- mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%s%s\\%s",
- interp, interp[0] == '\0' ? "" : " ", full_dir, prog);
-
- DEBUG_TRACE(("Running [%s]", cmdline));
- if (CreateProcessA(NULL, cmdline, NULL, NULL, TRUE,
- CREATE_NEW_PROCESS_GROUP, envblk, NULL, &si, &pi) == 0) {
- cry(conn, "%s: CreateProcess(%s): %ld",
- __func__, cmdline, ERRNO);
- pi.hProcess = (pid_t) -1;
- }
-
- // Always close these to prevent handle leakage.
- (void) close(fd_stdin);
- (void) close(fd_stdout);
-
- (void) CloseHandle(si.hStdOutput);
- (void) CloseHandle(si.hStdInput);
- (void) CloseHandle(pi.hThread);
-
- return (pid_t) pi.hProcess;
-}
-#endif // !NO_CGI
-
-static int set_non_blocking_mode(SOCKET sock) {
- unsigned long on = 1;
- return ioctlsocket(sock, FIONBIO, &on);
-}
-#else
-static int mg_stat(struct mg_connection *conn, const char *path,
- struct file *filep) {
- struct stat st;
-
- if (!is_file_in_memory(conn, path, filep) && !stat(path, &st)) {
- filep->size = st.st_size;
- filep->modification_time = st.st_mtime;
- filep->is_directory = S_ISDIR(st.st_mode);
- } else {
- filep->modification_time = (time_t) 0;
- }
-
- return filep->membuf != NULL || filep->modification_time != (time_t) 0;
-}
-
-static void set_close_on_exec(int fd) {
- fcntl(fd, F_SETFD, FD_CLOEXEC);
-}
-
-int mg_start_thread(mg_thread_func_t func, void *param) {
- pthread_t thread_id;
- pthread_attr_t attr;
- int result;
-
- (void) pthread_attr_init(&attr);
- (void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
- // TODO(lsm): figure out why mongoose dies on Linux if next line is enabled
- // (void) pthread_attr_setstacksize(&attr, sizeof(struct mg_connection) * 5);
-
- result = pthread_create(&thread_id, &attr, func, param);
- pthread_attr_destroy(&attr);
-
- return result;
-}
-
-#ifndef NO_CGI
-static pid_t spawn_process(struct mg_connection *conn, const char *prog,
- char *envblk, char *envp[], int fd_stdin,
- int fd_stdout, const char *dir) {
- pid_t pid;
- const char *interp;
-
- (void) envblk;
-
- if ((pid = fork()) == -1) {
- // Parent
- send_http_error(conn, 500, http_500_error, "fork(): %s", strerror(ERRNO));
- } else if (pid == 0) {
- // Child
- if (chdir(dir) != 0) {
- cry(conn, "%s: chdir(%s): %s", __func__, dir, strerror(ERRNO));
- } else if (dup2(fd_stdin, 0) == -1) {
- cry(conn, "%s: dup2(%d, 0): %s", __func__, fd_stdin, strerror(ERRNO));
- } else if (dup2(fd_stdout, 1) == -1) {
- cry(conn, "%s: dup2(%d, 1): %s", __func__, fd_stdout, strerror(ERRNO));
- } else {
- // Not redirecting stderr to stdout, to avoid output being littered
- // with the error messages.
- (void) close(fd_stdin);
- (void) close(fd_stdout);
-
- // After exec, all signal handlers are restored to their default values,
- // with one exception of SIGCHLD. According to POSIX.1-2001 and Linux's
- // implementation, SIGCHLD's handler will leave unchanged after exec
- // if it was set to be ignored. Restore it to default action.
- signal(SIGCHLD, SIG_DFL);
-
- interp = conn->ctx->config[CGI_INTERPRETER];
- if (interp == NULL) {
- (void) execle(prog, prog, NULL, envp);
- cry(conn, "%s: execle(%s): %s", __func__, prog, strerror(ERRNO));
- } else {
- (void) execle(interp, interp, prog, NULL, envp);
- cry(conn, "%s: execle(%s %s): %s", __func__, interp, prog,
- strerror(ERRNO));
- }
- }
- exit(EXIT_FAILURE);
- }
-
- // Parent. Close stdio descriptors
- (void) close(fd_stdin);
- (void) close(fd_stdout);
-
- return pid;
-}
-#endif // !NO_CGI
-
-static int set_non_blocking_mode(SOCKET sock) {
- int flags;
-
- flags = fcntl(sock, F_GETFL, 0);
- (void) fcntl(sock, F_SETFL, flags | O_NONBLOCK);
-
- return 0;
-}
-#endif // _WIN32
+union char64long16 { unsigned char c[64]; uint32_t l[16]; };
-#ifndef HAVE_POLL
-static int poll(struct pollfd *pfd, int n, int milliseconds) {
- struct timeval tv;
- fd_set set;
- int i, result, maxfd = 0;
-
- tv.tv_sec = milliseconds / 1000;
- tv.tv_usec = (milliseconds % 1000) * 1000;
- FD_ZERO(&set);
-
- for (i = 0; i < n; i++) {
- FD_SET((SOCKET) pfd[i].fd, &set);
- pfd[i].revents = 0;
-
- if (pfd[i].fd > maxfd) {
- maxfd = pfd[i].fd;
- }
- }
-
- if ((result = select(maxfd + 1, &set, NULL, NULL, &tv)) > 0) {
- for (i = 0; i < n; i++) {
- if (FD_ISSET(pfd[i].fd, &set)) {
- pfd[i].revents = POLLIN;
- }
- }
- }
-
- return result;
-}
-#endif // HAVE_POLL
-
-// Write data to the IO channel - opened file descriptor, socket or SSL
-// descriptor. Return number of bytes written.
-static int64_t push(FILE *fp, SOCKET sock, SSL *ssl, const char *buf,
- int64_t len) {
- int64_t sent;
- int n, k;
-
- (void) ssl; // Get rid of warning
- sent = 0;
- while (sent < len) {
- // How many bytes we send in this iteration
- k = len - sent > INT_MAX ? INT_MAX : (int) (len - sent);
-
-#ifndef NO_SSL
- if (ssl != NULL) {
- n = SSL_write(ssl, buf + sent, k);
- } else
-#endif
- if (fp != NULL) {
- n = (int) fwrite(buf + sent, 1, (size_t) k, fp);
- if (ferror(fp))
- n = -1;
- } else {
- n = send(sock, buf + sent, (size_t) k, MSG_NOSIGNAL);
- }
-
- if (n <= 0)
- break;
-
- sent += n;
- }
-
- return sent;
-}
-
-// Read from IO channel - opened file descriptor, socket, or SSL descriptor.
-// Return negative value on error, or number of bytes read on success.
-static int pull(FILE *fp, struct mg_connection *conn, char *buf, int len) {
- int nread;
-
- if (fp != NULL) {
- // Use read() instead of fread(), because if we're reading from the CGI
- // pipe, fread() may block until IO buffer is filled up. We cannot afford
- // to block and must pass all read bytes immediately to the client.
- nread = read(fileno(fp), buf, (size_t) len);
-#ifndef NO_SSL
- } else if (conn->ssl != NULL) {
- nread = SSL_read(conn->ssl, buf, len);
-#endif
- } else {
- nread = recv(conn->client.sock, buf, (size_t) len, 0);
- }
-
- return conn->ctx->stop_flag ? -1 : nread;
-}
-
-static int pull_all(FILE *fp, struct mg_connection *conn, char *buf, int len) {
- int n, nread = 0;
-
- while (len > 0) {
- n = pull(fp, conn, buf + nread, len);
- if (n < 0) {
- nread = n; // Propagate the error
- break;
- } else if (n == 0) {
- break; // No more data to read
- } else {
- conn->consumed_content += n;
- nread += n;
- len -= n;
- }
- }
-
- return nread;
-}
-
-int mg_read(struct mg_connection *conn, void *buf, size_t len) {
- int n, buffered_len, nread;
- const char *body;
-
- // If Content-Length is not set, read until socket is closed
- if (conn->consumed_content == 0 && conn->content_len == 0) {
- conn->content_len = INT64_MAX;
- conn->must_close = 1;
- }
-
- nread = 0;
- if (conn->consumed_content < conn->content_len) {
- // Adjust number of bytes to read.
- int64_t to_read = conn->content_len - conn->consumed_content;
- if (to_read < (int64_t) len) {
- len = (size_t) to_read;
- }
-
- // Return buffered data
- body = conn->buf + conn->request_len + conn->consumed_content;
- buffered_len = &conn->buf[conn->data_len] - body;
- if (buffered_len > 0) {
- if (len < (size_t) buffered_len) {
- buffered_len = (int) len;
- }
- memcpy(buf, body, (size_t) buffered_len);
- len -= buffered_len;
- conn->consumed_content += buffered_len;
- nread += buffered_len;
- buf = (char *) buf + buffered_len;
- }
-
- // We have returned all buffered data. Read new data from the remote socket.
- n = pull_all(NULL, conn, (char *) buf, (int) len);
- nread = n >= 0 ? nread + n : n;
- }
- return nread;
-}
-
-int mg_write(struct mg_connection *conn, const void *buf, size_t len) {
- time_t now;
- int64_t n, total, allowed;
-
- if (conn->throttle > 0) {
- if ((now = time(NULL)) != conn->last_throttle_time) {
- conn->last_throttle_time = now;
- conn->last_throttle_bytes = 0;
- }
- allowed = conn->throttle - conn->last_throttle_bytes;
- if (allowed > (int64_t) len) {
- allowed = len;
- }
- if ((total = push(NULL, conn->client.sock, conn->ssl, (const char *) buf,
- (int64_t) allowed)) == allowed) {
- buf = (char *) buf + total;
- conn->last_throttle_bytes += total;
- while (total < (int64_t) len && conn->ctx->stop_flag == 0) {
- allowed = conn->throttle > (int64_t) len - total ?
- (int64_t) len - total : conn->throttle;
- if ((n = push(NULL, conn->client.sock, conn->ssl, (const char *) buf,
- (int64_t) allowed)) != allowed) {
- break;
- }
- sleep(1);
- conn->last_throttle_bytes = allowed;
- conn->last_throttle_time = time(NULL);
- buf = (char *) buf + n;
- total += n;
- }
- }
- } else {
- total = push(NULL, conn->client.sock, conn->ssl, (const char *) buf,
- (int64_t) len);
- }
- return (int) total;
+#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
+
+static uint32_t blk0(union char64long16 *block, int i) {
+ // Forrest: SHA expect BIG_ENDIAN, swap if LITTLE_ENDIAN
+ if (!is_big_endian()) {
+ block->l[i] = (rol(block->l[i], 24) & 0xFF00FF00) |
+ (rol(block->l[i], 8) & 0x00FF00FF);
+ }
+ return block->l[i];
}
-// Print message to buffer. If buffer is large enough to hold the message,
-// return buffer. If buffer is to small, allocate large enough buffer on heap,
-// and return allocated buffer.
-static int alloc_vprintf(char **buf, size_t size, const char *fmt, va_list ap) {
- va_list ap_copy;
- int len;
+#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \
+ ^block->l[(i+2)&15]^block->l[i&15],1))
+#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(block, i)+0x5A827999+rol(v,5);w=rol(w,30);
+#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30);
+#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);
+#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);
+#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30);
- // Windows is not standard-compliant, and vsnprintf() returns -1 if
- // buffer is too small. Also, older versions of msvcrt.dll do not have
- // _vscprintf(). However, if size is 0, vsnprintf() behaves correctly.
- // Therefore, we make two passes: on first pass, get required message length.
- // On second pass, actually print the message.
- va_copy(ap_copy, ap);
- len = vsnprintf(NULL, 0, fmt, ap_copy);
+typedef struct {
+ uint32_t state[5];
+ uint32_t count[2];
+ unsigned char buffer[64];
+} SHA1_CTX;
- if (len > (int) size &&
- (size = len + 1) > 0 &&
- (*buf = (char *) malloc(size)) == NULL) {
- len = -1; // Allocation failed, mark failure
- } else {
- va_copy(ap_copy, ap);
- vsnprintf(*buf, size, fmt, ap_copy);
- }
+static void SHA1Transform(uint32_t state[5], const unsigned char buffer[64]) {
+ uint32_t a, b, c, d, e;
+ union char64long16 block[1];
+
+ memcpy(block, buffer, 64);
+ a = state[0];
+ b = state[1];
+ c = state[2];
+ d = state[3];
+ e = state[4];
+ R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
+ R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
+ R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11);
+ R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15);
+ R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
+ R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
+ R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
+ R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
+ R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
+ R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
+ R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
+ R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
+ R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
+ R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
+ R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
+ R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
+ R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
+ R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
+ R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
+ R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
+ state[0] += a;
+ state[1] += b;
+ state[2] += c;
+ state[3] += d;
+ state[4] += e;
+ // Erase working structures. The order of operations is important,
+ // used to ensure that compiler doesn't optimize those out.
+ memset(block, 0, sizeof(block));
+ a = b = c = d = e = 0;
+ (void) a; (void) b; (void) c; (void) d; (void) e;
+}
- return len;
+static void SHA1Init(SHA1_CTX* context) {
+ context->state[0] = 0x67452301;
+ context->state[1] = 0xEFCDAB89;
+ context->state[2] = 0x98BADCFE;
+ context->state[3] = 0x10325476;
+ context->state[4] = 0xC3D2E1F0;
+ context->count[0] = context->count[1] = 0;
}
-int mg_vprintf(struct mg_connection *conn, const char *fmt, va_list ap) {
- char mem[MG_BUF_LEN], *buf = mem;
- int len;
+static void SHA1Update(SHA1_CTX* context, const unsigned char* data,
+ uint32_t len) {
+ uint32_t i, j;
+
+ j = context->count[0];
+ if ((context->count[0] += len << 3) < j)
+ context->count[1]++;
+ context->count[1] += (len>>29);
+ j = (j >> 3) & 63;
+ if ((j + len) > 63) {
+ memcpy(&context->buffer[j], data, (i = 64-j));
+ SHA1Transform(context->state, context->buffer);
+ for ( ; i + 63 < len; i += 64) {
+ SHA1Transform(context->state, &data[i]);
+ }
+ j = 0;
+ }
+ else i = 0;
+ memcpy(&context->buffer[j], &data[i], len - i);
+}
- if ((len = alloc_vprintf(&buf, sizeof(mem), fmt, ap)) > 0) {
- len = mg_write(conn, buf, (size_t) len);
- }
- if (buf != mem && buf != NULL) {
- free(buf);
- }
+static void SHA1Final(unsigned char digest[20], SHA1_CTX* context) {
+ unsigned i;
+ unsigned char finalcount[8], c;
+
+ for (i = 0; i < 8; i++) {
+ finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)]
+ >> ((3-(i & 3)) * 8) ) & 255);
+ }
+ c = 0200;
+ SHA1Update(context, &c, 1);
+ while ((context->count[0] & 504) != 448) {
+ c = 0000;
+ SHA1Update(context, &c, 1);
+ }
+ SHA1Update(context, finalcount, 8);
+ for (i = 0; i < 20; i++) {
+ digest[i] = (unsigned char)
+ ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
+ }
+ memset(context, '\0', sizeof(*context));
+ memset(&finalcount, '\0', sizeof(finalcount));
+}
+// END OF SHA1 CODE
- return len;
+static void base64_encode(const unsigned char *src, int src_len, char *dst) {
+ static const char *b64 =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+ int i, j, a, b, c;
+
+ for (i = j = 0; i < src_len; i += 3) {
+ a = src[i];
+ b = i + 1 >= src_len ? 0 : src[i + 1];
+ c = i + 2 >= src_len ? 0 : src[i + 2];
+
+ dst[j++] = b64[a >> 2];
+ dst[j++] = b64[((a & 3) << 4) | (b >> 4)];
+ if (i + 1 < src_len) {
+ dst[j++] = b64[(b & 15) << 2 | (c >> 6)];
+ }
+ if (i + 2 < src_len) {
+ dst[j++] = b64[c & 63];
+ }
+ }
+ while (j % 4 != 0) {
+ dst[j++] = '=';
+ }
+ dst[j++] = '\0';
+}
+
+static void send_websocket_handshake(struct mg_connection *conn,
+ const char *key) {
+ static const char *magic = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
+ char buf[500], sha[20], b64_sha[sizeof(sha) * 2];
+ SHA1_CTX sha_ctx;
+
+ mg_snprintf(buf, sizeof(buf), "%s%s", key, magic);
+ SHA1Init(&sha_ctx);
+ SHA1Update(&sha_ctx, (unsigned char *) buf, strlen(buf));
+ SHA1Final((unsigned char *) sha, &sha_ctx);
+ base64_encode((unsigned char *) sha, sizeof(sha), b64_sha);
+ mg_snprintf(buf, sizeof(buf), "%s%s%s",
+ "HTTP/1.1 101 Switching Protocols\r\n"
+ "Upgrade: websocket\r\n"
+ "Connection: Upgrade\r\n"
+ "Sec-WebSocket-Accept: ", b64_sha, "\r\n\r\n");
+
+ mg_write(conn, buf, strlen(buf));
+}
+
+static int deliver_websocket_frame(struct connection *conn) {
+ // Having buf unsigned char * is important, as it is used below in arithmetic
+ unsigned char *buf = (unsigned char *) conn->ns_conn->recv_iobuf.buf;
+ int i, len, buf_len = conn->ns_conn->recv_iobuf.len, frame_len = 0,
+ mask_len = 0, header_len = 0, data_len = 0, buffered = 0;
+
+ if (buf_len >= 2) {
+ len = buf[1] & 127;
+ mask_len = buf[1] & 128 ? 4 : 0;
+ if (len < 126 && buf_len >= mask_len) {
+ data_len = len;
+ header_len = 2 + mask_len;
+ } else if (len == 126 && buf_len >= 4 + mask_len) {
+ header_len = 4 + mask_len;
+ data_len = ((((int) buf[2]) << 8) + buf[3]);
+ } else if (buf_len >= 10 + mask_len) {
+ header_len = 10 + mask_len;
+ data_len = (int) (((uint64_t) htonl(* (uint32_t *) &buf[2])) << 32) +
+ htonl(* (uint32_t *) &buf[6]);
+ }
+ }
+
+ frame_len = header_len + data_len;
+ buffered = frame_len > 0 && frame_len <= buf_len;
+
+ if (buffered) {
+ conn->mg_conn.content_len = data_len;
+ conn->mg_conn.content = (char *) buf + header_len;
+ conn->mg_conn.wsbits = buf[0];
+
+ // Apply mask if necessary
+ if (mask_len > 0) {
+ for (i = 0; i < data_len; i++) {
+ buf[i + header_len] ^= (buf + header_len - mask_len)[i % 4];
+ }
+ }
+
+ // Call the handler and remove frame from the iobuf
+ if (call_user(conn, MG_REQUEST) == MG_FALSE) {
+ conn->ns_conn->flags |= NSF_FINISHED_SENDING_DATA;
+ }
+ iobuf_remove(&conn->ns_conn->recv_iobuf, frame_len);
+ }
+
+ return buffered;
}
-int mg_printf(struct mg_connection *conn, const char *fmt, ...) {
- va_list ap;
- va_start(ap, fmt);
- return mg_vprintf(conn, fmt, ap);
+int mg_websocket_write(struct mg_connection* conn, int opcode,
+ const char *data, size_t data_len) {
+ unsigned char mem[4192], *copy = mem;
+ size_t copy_len = 0;
+ int retval = -1;
+
+ if (data_len + 10 > sizeof(mem) &&
+ (copy = (unsigned char *) malloc(data_len + 10)) == NULL) {
+ return -1;
+ }
+
+ copy[0] = 0x80 + (opcode & 0x0f);
+
+ // Frame format: http://tools.ietf.org/html/rfc6455#section-5.2
+ if (data_len < 126) {
+ // Inline 7-bit length field
+ copy[1] = data_len;
+ memcpy(copy + 2, data, data_len);
+ copy_len = 2 + data_len;
+ } else if (data_len <= 0xFFFF) {
+ // 16-bit length field
+ copy[1] = 126;
+ * (uint16_t *) (copy + 2) = (uint16_t) htons((uint16_t) data_len);
+ memcpy(copy + 4, data, data_len);
+ copy_len = 4 + data_len;
+ } else {
+ // 64-bit length field
+ copy[1] = 127;
+ * (uint32_t *) (copy + 2) = (uint32_t)
+ htonl((uint32_t) ((uint64_t) data_len >> 32));
+ * (uint32_t *) (copy + 6) = (uint32_t) htonl(data_len & 0xffffffff);
+ memcpy(copy + 10, data, data_len);
+ copy_len = 10 + data_len;
+ }
+
+ if (copy_len > 0) {
+ retval = mg_write(conn, copy, copy_len);
+ }
+ if (copy != mem) {
+ free(copy);
+ }
+
+ return retval;
+}
+
+int mg_websocket_printf(struct mg_connection* conn, int opcode,
+ const char *fmt, ...) {
+ char mem[4192], *buf = mem;
+ va_list ap;
+ int len;
+
+ va_start(ap, fmt);
+ if ((len = ns_avprintf(&buf, sizeof(mem), fmt, ap)) > 0) {
+ mg_websocket_write(conn, opcode, buf, len);
+ }
+ va_end(ap);
+
+ if (buf != mem && buf != NULL) {
+ free(buf);
+ }
+
+ return len;
+}
+
+static void send_websocket_handshake_if_requested(struct mg_connection *conn) {
+ const char *ver = mg_get_header(conn, "Sec-WebSocket-Version"),
+ *key = mg_get_header(conn, "Sec-WebSocket-Key");
+ if (ver != NULL && key != NULL) {
+ conn->is_websocket = 1;
+ if (call_user(MG_CONN_2_CONN(conn), MG_WS_HANDSHAKE) == MG_FALSE) {
+ send_websocket_handshake(conn, key);
+ }
+ }
+}
+
+static void ping_idle_websocket_connection(struct connection *conn, time_t t) {
+ if (t - conn->ns_conn->last_io_time > MONGOOSE_USE_WEBSOCKET_PING_INTERVAL) {
+ mg_websocket_write(&conn->mg_conn, WEBSOCKET_OPCODE_PING, "", 0);
+ }
}
+#else
+#define ping_idle_websocket_connection(conn, t)
+#endif // !MONGOOSE_NO_WEBSOCKET
-int mg_url_decode(const char *src, int src_len, char *dst,
- int dst_len, int is_form_url_encoded) {
- int i, j, a, b;
-#define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W')
+static void write_terminating_chunk(struct connection *conn) {
+ mg_write(&conn->mg_conn, "0\r\n\r\n", 5);
+}
- for (i = j = 0; i < src_len && j < dst_len - 1; i++, j++) {
- if (src[i] == '%' && i < src_len - 2 &&
- isxdigit(* (const unsigned char *) (src + i + 1)) &&
- isxdigit(* (const unsigned char *) (src + i + 2))) {
- a = tolower(* (const unsigned char *) (src + i + 1));
- b = tolower(* (const unsigned char *) (src + i + 2));
- dst[j] = (char) ((HEXTOI(a) << 4) | HEXTOI(b));
- i += 2;
- } else if (is_form_url_encoded && src[i] == '+') {
- dst[j] = ' ';
- } else {
- dst[j] = src[i];
- }
- }
-
- dst[j] = '\0'; // Null-terminate the destination
-
- return i >= src_len ? j : -1;
-}
-
-int mg_get_var(const char *data, size_t data_len, const char *name,
- char *dst, size_t dst_len) {
- const char *p, *e, *s;
- size_t name_len;
- int len;
-
- if (dst == NULL || dst_len == 0) {
- len = -2;
- } else if (data == NULL || name == NULL || data_len == 0) {
- len = -1;
- dst[0] = '\0';
- } else {
- name_len = strlen(name);
- e = data + data_len;
- len = -1;
- dst[0] = '\0';
-
- // data is "var1=val1&var2=val2...". Find variable first
- for (p = data; p + name_len < e; p++) {
- if ((p == data || p[-1] == '&') && p[name_len] == '=' &&
- !mg_strncasecmp(name, p, name_len)) {
- // Point p to variable value
- p += name_len + 1;
-
- // Point s to the end of the value
- s = (const char *) memchr(p, '&', (size_t)(e - p));
- if (s == NULL) {
- s = e;
- }
- assert(s >= p);
-
- // Decode variable into destination buffer
- len = mg_url_decode(p, (size_t)(s - p), dst, dst_len, 1);
-
- // Redirect error code from -1 to -2 (destination buffer too small).
- if (len == -1) {
- len = -2;
- }
- break;
- }
- }
- }
-
- return len;
-}
-
-int mg_get_cookie(const char *cookie_header, const char *var_name,
- char *dst, size_t dst_size) {
- const char *s, *p, *end;
- int name_len, len = -1;
-
- if (dst == NULL || dst_size == 0) {
- len = -2;
- } else if (var_name == NULL || (s = cookie_header) == NULL) {
- len = -1;
- dst[0] = '\0';
- } else {
- name_len = (int) strlen(var_name);
- end = s + strlen(s);
- dst[0] = '\0';
-
- for (; (s = mg_strcasestr(s, var_name)) != NULL; s += name_len) {
- if (s[name_len] == '=') {
- s += name_len + 1;
- if ((p = strchr(s, ' ')) == NULL)
- p = end;
- if (p[-1] == ';')
- p--;
- if (*s == '"' && p[-1] == '"' && p > s + 1) {
- s++;
- p--;
- }
- if ((size_t) (p - s) < dst_size) {
- len = p - s;
- mg_strlcpy(dst, s, (size_t) len + 1);
- } else {
- len = -3;
- }
- break;
- }
- }
- }
- return len;
-}
-
-static void convert_uri_to_file_name(struct mg_connection *conn, char *buf,
- size_t buf_len, struct file *filep) {
- struct vec a, b;
- const char *rewrite, *uri = conn->request_info.uri;
- char *p;
- int match_len;
- char gz_path[PATH_MAX];
- char const* accept_encoding;
-
- // Using buf_len - 1 because memmove() for PATH_INFO may shift part
- // of the path one byte on the right.
- mg_snprintf(conn, buf, buf_len - 1, "%s%s", conn->ctx->config[DOCUMENT_ROOT],
- uri);
-
- rewrite = conn->ctx->config[REWRITE];
- while ((rewrite = next_option(rewrite, &a, &b)) != NULL) {
- if ((match_len = match_prefix(a.ptr, a.len, uri)) > 0) {
- mg_snprintf(conn, buf, buf_len - 1, "%.*s%s", (int) b.len, b.ptr,
- uri + match_len);
- break;
- }
- }
-
- if (mg_stat(conn, buf, filep)) return;
-
- // if we can't find the actual file, look for the file
- // with the same name but a .gz extension. If we find it,
- // use that and set the gzipped flag in the file struct
- // to indicate that the response need to have the content-
- // encoding: gzip header
- // we can only do this if the browser declares support
- if ((accept_encoding = mg_get_header(conn, "Accept-Encoding")) != NULL) {
- if (strstr(accept_encoding,"gzip") != NULL) {
- snprintf(gz_path, sizeof(gz_path), "%s.gz", buf);
- if (mg_stat(conn, gz_path, filep)) {
- filep->gzipped = 1;
- return;
- }
- }
- }
-
- // Support PATH_INFO for CGI scripts.
- for (p = buf + strlen(buf); p > buf + 1; p--) {
- if (*p == '/') {
- *p = '\0';
- if (match_prefix(conn->ctx->config[CGI_EXTENSIONS],
- strlen(conn->ctx->config[CGI_EXTENSIONS]), buf) > 0 &&
- mg_stat(conn, buf, filep)) {
- // Shift PATH_INFO block one character right, e.g.
- // "/x.cgi/foo/bar\x00" => "/x.cgi\x00/foo/bar\x00"
- // conn->path_info is pointing to the local variable "path" declared
- // in handle_request(), so PATH_INFO is not valid after
- // handle_request returns.
- conn->path_info = p + 1;
- memmove(p + 2, p + 1, strlen(p + 1) + 1); // +1 is for trailing \0
- p[1] = '/';
- break;
- } else {
- *p = '/';
- }
- }
- }
+static int call_request_handler(struct connection *conn) {
+ int result;
+ conn->mg_conn.content = conn->ns_conn->recv_iobuf.buf;
+ if ((result = call_user(conn, MG_REQUEST)) == MG_TRUE) {
+ if (conn->ns_conn->flags & MG_HEADERS_SENT) {
+ write_terminating_chunk(conn);
+ }
+ close_local_endpoint(conn);
+ }
+ return result;
}
-// Check whether full request is buffered. Return:
-// -1 if request is malformed
-// 0 if request is not yet fully buffered
-// >0 actual request length, including last \r\n\r\n
-static int get_request_len(const char *buf, int buflen) {
- const char *s, *e;
- int len = 0;
-
- for (s = buf, e = s + buflen - 1; len <= 0 && s < e; s++)
- // Control characters are not allowed but >=128 is.
- if (!isprint(* (const unsigned char *) s) && *s != '\r' &&
- *s != '\n' && * (const unsigned char *) s < 128) {
- len = -1;
- break; // [i_a] abort scan as soon as one malformed character is found;
- // don't let subsequent \r\n\r\n win us over anyhow
- } else if (s[0] == '\n' && s[1] == '\n') {
- len = (int) (s - buf) + 2;
- } else if (s[0] == '\n' && &s[1] < e &&
- s[1] == '\r' && s[2] == '\n') {
- len = (int) (s - buf) + 3;
- }
-
- return len;
+const char *mg_get_mime_type(const char *path, const char *default_mime_type) {
+ const char *ext;
+ size_t i, path_len;
+
+ path_len = strlen(path);
+
+ for (i = 0; static_builtin_mime_types[i].extension != NULL; i++) {
+ ext = path + (path_len - static_builtin_mime_types[i].ext_len);
+ if (path_len > static_builtin_mime_types[i].ext_len &&
+ mg_strcasecmp(ext, static_builtin_mime_types[i].extension) == 0) {
+ return static_builtin_mime_types[i].mime_type;
+ }
+ }
+
+ return default_mime_type;
}
+#ifndef MONGOOSE_NO_FILESYSTEM
// Convert month to the month number. Return -1 on error, or month number
static int get_month_index(const char *s) {
- size_t i;
+ static const char *month_names[] = {
+ "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+ };
+ int i;
- for (i = 0; i < ARRAY_SIZE(month_names); i++)
- if (!strcmp(s, month_names[i]))
- return (int) i;
+ for (i = 0; i < (int) ARRAY_SIZE(month_names); i++)
+ if (!strcmp(s, month_names[i]))
+ return i;
- return -1;
+ return -1;
}
static int num_leap_years(int year) {
- return year / 4 - year / 100 + year / 400;
+ return year / 4 - year / 100 + year / 400;
}
// Parse UTC date-time string, and return the corresponding time_t value.
static time_t parse_date_string(const char *datetime) {
- static const unsigned short days_before_month[] = {
- 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
- };
- char month_str[32];
- int second, minute, hour, day, month, year, leap_days, days;
- time_t result = (time_t) 0;
-
- if (((sscanf(datetime, "%d/%3s/%d %d:%d:%d",
- &day, month_str, &year, &hour, &minute, &second) == 6) ||
- (sscanf(datetime, "%d %3s %d %d:%d:%d",
- &day, month_str, &year, &hour, &minute, &second) == 6) ||
- (sscanf(datetime, "%*3s, %d %3s %d %d:%d:%d",
- &day, month_str, &year, &hour, &minute, &second) == 6) ||
- (sscanf(datetime, "%d-%3s-%d %d:%d:%d",
- &day, month_str, &year, &hour, &minute, &second) == 6)) &&
- year > 1970 &&
- (month = get_month_index(month_str)) != -1) {
- leap_days = num_leap_years(year) - num_leap_years(1970);
- year -= 1970;
- days = year * 365 + days_before_month[month] + (day - 1) + leap_days;
- result = days * 24 * 3600 + hour * 3600 + minute * 60 + second;
- }
-
- return result;
+ static const unsigned short days_before_month[] = {
+ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
+ };
+ char month_str[32];
+ int second, minute, hour, day, month, year, leap_days, days;
+ time_t result = (time_t) 0;
+
+ if (((sscanf(datetime, "%d/%3s/%d %d:%d:%d",
+ &day, month_str, &year, &hour, &minute, &second) == 6) ||
+ (sscanf(datetime, "%d %3s %d %d:%d:%d",
+ &day, month_str, &year, &hour, &minute, &second) == 6) ||
+ (sscanf(datetime, "%*3s, %d %3s %d %d:%d:%d",
+ &day, month_str, &year, &hour, &minute, &second) == 6) ||
+ (sscanf(datetime, "%d-%3s-%d %d:%d:%d",
+ &day, month_str, &year, &hour, &minute, &second) == 6)) &&
+ year > 1970 &&
+ (month = get_month_index(month_str)) != -1) {
+ leap_days = num_leap_years(year) - num_leap_years(1970);
+ year -= 1970;
+ days = year * 365 + days_before_month[month] + (day - 1) + leap_days;
+ result = days * 24 * 3600 + hour * 3600 + minute * 60 + second;
+ }
+
+ return result;
}
-// Protect against directory disclosure attack by removing '..',
-// excessive '/' and '\' characters
-static void remove_double_dots_and_double_slashes(char *s) {
- char *p = s;
-
- while (*s != '\0') {
- *p++ = *s++;
- if (s[-1] == '/' || s[-1] == '\\') {
- // Skip all following slashes, backslashes and double-dots
- while (s[0] != '\0') {
- if (s[0] == '/' || s[0] == '\\') {
- s++;
- } else if (s[0] == '.' && s[1] == '.') {
- s += 2;
- } else {
- break;
- }
- }
- }
- }
- *p = '\0';
+// Look at the "path" extension and figure what mime type it has.
+// Store mime type in the vector.
+static void get_mime_type(const struct mg_server *server, const char *path,
+ struct vec *vec) {
+ struct vec ext_vec, mime_vec;
+ const char *list, *ext;
+ size_t path_len;
+
+ path_len = strlen(path);
+
+ // Scan user-defined mime types first, in case user wants to
+ // override default mime types.
+ list = server->config_options[EXTRA_MIME_TYPES];
+ while ((list = next_option(list, &ext_vec, &mime_vec)) != NULL) {
+ // ext now points to the path suffix
+ ext = path + path_len - ext_vec.len;
+ if (mg_strncasecmp(ext, ext_vec.ptr, ext_vec.len) == 0) {
+ *vec = mime_vec;
+ return;
+ }
+ }
+
+ vec->ptr = mg_get_mime_type(path, "text/plain");
+ vec->len = strlen(vec->ptr);
}
-static const struct {
- const char *extension;
- size_t ext_len;
- const char *mime_type;
-} builtin_mime_types[] = {
- {".html", 5, "text/html"},
- {".htm", 4, "text/html"},
- {".shtm", 5, "text/html"},
- {".shtml", 6, "text/html"},
- {".css", 4, "text/css"},
- {".js", 3, "application/x-javascript"},
- {".ico", 4, "image/x-icon"},
- {".gif", 4, "image/gif"},
- {".jpg", 4, "image/jpeg"},
- {".jpeg", 5, "image/jpeg"},
- {".png", 4, "image/png"},
- {".svg", 4, "image/svg+xml"},
- {".txt", 4, "text/plain"},
- {".torrent", 8, "application/x-bittorrent"},
- {".wav", 4, "audio/x-wav"},
- {".mp3", 4, "audio/x-mp3"},
- {".mid", 4, "audio/mid"},
- {".m3u", 4, "audio/x-mpegurl"},
- {".ogg", 4, "audio/ogg"},
- {".ram", 4, "audio/x-pn-realaudio"},
- {".xml", 4, "text/xml"},
- {".json", 5, "text/json"},
- {".xslt", 5, "application/xml"},
- {".xsl", 4, "application/xml"},
- {".ra", 3, "audio/x-pn-realaudio"},
- {".doc", 4, "application/msword"},
- {".exe", 4, "application/octet-stream"},
- {".zip", 4, "application/x-zip-compressed"},
- {".xls", 4, "application/excel"},
- {".tgz", 4, "application/x-tar-gz"},
- {".tar", 4, "application/x-tar"},
- {".gz", 3, "application/x-gunzip"},
- {".arj", 4, "application/x-arj-compressed"},
- {".rar", 4, "application/x-arj-compressed"},
- {".rtf", 4, "application/rtf"},
- {".pdf", 4, "application/pdf"},
- {".swf", 4, "application/x-shockwave-flash"},
- {".mpg", 4, "video/mpeg"},
- {".webm", 5, "video/webm"},
- {".mpeg", 5, "video/mpeg"},
- {".mov", 4, "video/quicktime"},
- {".mp4", 4, "video/mp4"},
- {".m4v", 4, "video/x-m4v"},
- {".asf", 4, "video/x-ms-asf"},
- {".avi", 4, "video/x-msvideo"},
- {".bmp", 4, "image/bmp"},
- {".ttf", 4, "application/x-font-ttf"},
- {NULL, 0, NULL}
+static const char *suggest_connection_header(const struct mg_connection *conn) {
+ return should_keep_alive(conn) ? "keep-alive" : "close";
+}
+
+static void construct_etag(char *buf, size_t buf_len, const file_stat_t *st) {
+ mg_snprintf(buf, buf_len, "\"%lx.%" INT64_FMT "\"",
+ (unsigned long) st->st_mtime, (int64_t) st->st_size);
+}
+
+// Return True if we should reply 304 Not Modified.
+static int is_not_modified(const struct connection *conn,
+ const file_stat_t *stp) {
+ char etag[64];
+ const char *ims = mg_get_header(&conn->mg_conn, "If-Modified-Since");
+ const char *inm = mg_get_header(&conn->mg_conn, "If-None-Match");
+ construct_etag(etag, sizeof(etag), stp);
+ return (inm != NULL && !mg_strcasecmp(etag, inm)) ||
+ (ims != NULL && stp->st_mtime <= parse_date_string(ims));
+}
+
+// For given directory path, substitute it to valid index file.
+// Return 0 if index file has been found, -1 if not found.
+// If the file is found, it's stats is returned in stp.
+static int find_index_file(struct connection *conn, char *path,
+ size_t path_len, file_stat_t *stp) {
+ const char *list = conn->server->config_options[INDEX_FILES];
+ file_stat_t st;
+ struct vec filename_vec;
+ size_t n = strlen(path), found = 0;
+
+ // The 'path' given to us points to the directory. Remove all trailing
+ // directory separator characters from the end of the path, and
+ // then append single directory separator character.
+ while (n > 0 && path[n - 1] == '/') {
+ n--;
+ }
+ path[n] = '/';
+
+ // Traverse index files list. For each entry, append it to the given
+ // path and see if the file exists. If it exists, break the loop
+ while ((list = next_option(list, &filename_vec, NULL)) != NULL) {
+
+ // Ignore too long entries that may overflow path buffer
+ if (filename_vec.len > (int) (path_len - (n + 2)))
+ continue;
+
+ // Prepare full path to the index file
+ strncpy(path + n + 1, filename_vec.ptr, filename_vec.len);
+ path[n + 1 + filename_vec.len] = '\0';
+
+ //DBG(("[%s]", path));
+
+ // Does it exist?
+ if (!stat(path, &st)) {
+ // Yes it does, break the loop
+ *stp = st;
+ found = 1;
+ break;
+ }
+ }
+
+ // If no index file exists, restore directory path
+ if (!found) {
+ path[n] = '\0';
+ }
+
+ return found;
+}
+
+static int parse_range_header(const char *header, int64_t *a, int64_t *b) {
+ return sscanf(header, "bytes=%" INT64_FMT "-%" INT64_FMT, a, b);
+}
+
+static void gmt_time_string(char *buf, size_t buf_len, time_t *t) {
+ strftime(buf, buf_len, "%a, %d %b %Y %H:%M:%S GMT", gmtime(t));
+}
+
+static void open_file_endpoint(struct connection *conn, const char *path,
+ file_stat_t *st) {
+ char date[64], lm[64], etag[64], range[64], headers[500];
+ const char *msg = "OK", *hdr;
+ time_t curtime = time(NULL);
+ int64_t r1, r2;
+ struct vec mime_vec;
+ int n;
+
+ conn->endpoint_type = EP_FILE;
+ ns_set_close_on_exec(conn->endpoint.fd);
+ conn->mg_conn.status_code = 200;
+
+ get_mime_type(conn->server, path, &mime_vec);
+ conn->cl = st->st_size;
+ range[0] = '\0';
+
+ // If Range: header specified, act accordingly
+ r1 = r2 = 0;
+ hdr = mg_get_header(&conn->mg_conn, "Range");
+ if (hdr != NULL && (n = parse_range_header(hdr, &r1, &r2)) > 0 &&
+ r1 >= 0 && r2 >= 0) {
+ conn->mg_conn.status_code = 206;
+ conn->cl = n == 2 ? (r2 > conn->cl ? conn->cl : r2) - r1 + 1: conn->cl - r1;
+ mg_snprintf(range, sizeof(range), "Content-Range: bytes "
+ "%" INT64_FMT "-%" INT64_FMT "/%" INT64_FMT "\r\n",
+ r1, r1 + conn->cl - 1, (int64_t) st->st_size);
+ msg = "Partial Content";
+ lseek(conn->endpoint.fd, r1, SEEK_SET);
+ }
+
+ // Prepare Etag, Date, Last-Modified headers. Must be in UTC, according to
+ // http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3
+ gmt_time_string(date, sizeof(date), &curtime);
+ gmt_time_string(lm, sizeof(lm), &st->st_mtime);
+ construct_etag(etag, sizeof(etag), st);
+
+ n = mg_snprintf(headers, sizeof(headers),
+ "HTTP/1.1 %d %s\r\n"
+ "Date: %s\r\n"
+ "Last-Modified: %s\r\n"
+ "Etag: %s\r\n"
+ "Content-Type: %.*s\r\n"
+ "Content-Length: %" INT64_FMT "\r\n"
+ "Connection: %s\r\n"
+ "Accept-Ranges: bytes\r\n"
+ "%s%s\r\n",
+ conn->mg_conn.status_code, msg, date, lm, etag,
+ (int) mime_vec.len, mime_vec.ptr, conn->cl,
+ suggest_connection_header(&conn->mg_conn),
+ range, MONGOOSE_USE_EXTRA_HTTP_HEADERS);
+ ns_send(conn->ns_conn, headers, n);
+
+ if (!strcmp(conn->mg_conn.request_method, "HEAD")) {
+ conn->ns_conn->flags |= NSF_FINISHED_SENDING_DATA;
+ close(conn->endpoint.fd);
+ conn->endpoint_type = EP_NONE;
+ }
+}
+#endif // MONGOOSE_NO_FILESYSTEM
+
+static void call_request_handler_if_data_is_buffered(struct connection *conn) {
+ struct iobuf *loc = &conn->ns_conn->recv_iobuf;
+ struct mg_connection *c = &conn->mg_conn;
+
+#ifndef MONGOOSE_NO_WEBSOCKET
+ if (conn->mg_conn.is_websocket) {
+ do { } while (deliver_websocket_frame(conn));
+ } else
+#endif
+ if ((size_t) loc->len >= c->content_len &&
+ call_request_handler(conn) == MG_FALSE) {
+ open_local_endpoint(conn, 1);
+ }
+}
+
+#if !defined(MONGOOSE_NO_DIRECTORY_LISTING) || !defined(MONGOOSE_NO_DAV)
+
+#ifdef _WIN32
+struct dirent {
+ char d_name[MAX_PATH_SIZE];
};
-const char *mg_get_builtin_mime_type(const char *path) {
- const char *ext;
- size_t i, path_len;
+typedef struct DIR {
+ HANDLE handle;
+ WIN32_FIND_DATAW info;
+ struct dirent result;
+} DIR;
- path_len = strlen(path);
+// Implementation of POSIX opendir/closedir/readdir for Windows.
+static DIR *opendir(const char *name) {
+ DIR *dir = NULL;
+ wchar_t wpath[MAX_PATH_SIZE];
+ DWORD attrs;
+
+ if (name == NULL) {
+ SetLastError(ERROR_BAD_ARGUMENTS);
+ } else if ((dir = (DIR *) malloc(sizeof(*dir))) == NULL) {
+ SetLastError(ERROR_NOT_ENOUGH_MEMORY);
+ } else {
+ to_wchar(name, wpath, ARRAY_SIZE(wpath));
+ attrs = GetFileAttributesW(wpath);
+ if (attrs != 0xFFFFFFFF &&
+ ((attrs & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)) {
+ (void) wcscat(wpath, L"\\*");
+ dir->handle = FindFirstFileW(wpath, &dir->info);
+ dir->result.d_name[0] = '\0';
+ } else {
+ free(dir);
+ dir = NULL;
+ }
+ }
+
+ return dir;
+}
- for (i = 0; builtin_mime_types[i].extension != NULL; i++) {
- ext = path + (path_len - builtin_mime_types[i].ext_len);
- if (path_len > builtin_mime_types[i].ext_len &&
- mg_strcasecmp(ext, builtin_mime_types[i].extension) == 0) {
- return builtin_mime_types[i].mime_type;
- }
- }
+static int closedir(DIR *dir) {
+ int result = 0;
+
+ if (dir != NULL) {
+ if (dir->handle != INVALID_HANDLE_VALUE)
+ result = FindClose(dir->handle) ? 0 : -1;
+
+ free(dir);
+ } else {
+ result = -1;
+ SetLastError(ERROR_BAD_ARGUMENTS);
+ }
- return "text/plain";
+ return result;
}
-// Look at the "path" extension and figure what mime type it has.
-// Store mime type in the vector.
-static void get_mime_type(struct mg_context *ctx, const char *path,
- struct vec *vec) {
- struct vec ext_vec, mime_vec;
- const char *list, *ext;
- size_t path_len;
-
- path_len = strlen(path);
-
- // Scan user-defined mime types first, in case user wants to
- // override default mime types.
- list = ctx->config[EXTRA_MIME_TYPES];
- while ((list = next_option(list, &ext_vec, &mime_vec)) != NULL) {
- // ext now points to the path suffix
- ext = path + path_len - ext_vec.len;
- if (mg_strncasecmp(ext, ext_vec.ptr, ext_vec.len) == 0) {
- *vec = mime_vec;
- return;
- }
- }
-
- vec->ptr = mg_get_builtin_mime_type(path);
- vec->len = strlen(vec->ptr);
+static struct dirent *readdir(DIR *dir) {
+ struct dirent *result = 0;
+
+ if (dir) {
+ if (dir->handle != INVALID_HANDLE_VALUE) {
+ result = &dir->result;
+ (void) WideCharToMultiByte(CP_UTF8, 0,
+ dir->info.cFileName, -1, result->d_name,
+ sizeof(result->d_name), NULL, NULL);
+
+ if (!FindNextFileW(dir->handle, &dir->info)) {
+ (void) FindClose(dir->handle);
+ dir->handle = INVALID_HANDLE_VALUE;
+ }
+
+ } else {
+ SetLastError(ERROR_FILE_NOT_FOUND);
+ }
+ } else {
+ SetLastError(ERROR_BAD_ARGUMENTS);
+ }
+
+ return result;
+}
+#endif // _WIN32 POSIX opendir/closedir/readdir implementation
+
+static int scan_directory(struct connection *conn, const char *dir,
+ struct dir_entry **arr) {
+ char path[MAX_PATH_SIZE];
+ struct dir_entry *p;
+ struct dirent *dp;
+ int arr_size = 0, arr_ind = 0, inc = 100;
+ DIR *dirp;
+
+ *arr = NULL;
+ if ((dirp = (opendir(dir))) == NULL) return 0;
+
+ while ((dp = readdir(dirp)) != NULL) {
+ // Do not show current dir and hidden files
+ if (!strcmp(dp->d_name, ".") ||
+ !strcmp(dp->d_name, "..") ||
+ must_hide_file(conn, dp->d_name)) {
+ continue;
+ }
+ mg_snprintf(path, sizeof(path), "%s%c%s", dir, '/', dp->d_name);
+
+ // Resize the array if nesessary
+ if (arr_ind >= arr_size) {
+ if ((p = (struct dir_entry *)
+ realloc(*arr, (inc + arr_size) * sizeof(**arr))) != NULL) {
+ // Memset new chunk to zero, otherwize st_mtime will have garbage which
+ // can make strftime() segfault, see
+ // http://code.google.com/p/mongoose/issues/detail?id=79
+ memset(p + arr_size, 0, sizeof(**arr) * inc);
+
+ *arr = p;
+ arr_size += inc;
+ }
+ }
+
+ if (arr_ind < arr_size) {
+ (*arr)[arr_ind].conn = conn;
+ (*arr)[arr_ind].file_name = strdup(dp->d_name);
+ stat(path, &(*arr)[arr_ind].st);
+ arr_ind++;
+ }
+ }
+ closedir(dirp);
+
+ return arr_ind;
+}
+
+int mg_url_encode(const char *src, size_t s_len, char *dst, size_t dst_len) {
+ static const char *dont_escape = "._-$,;~()";
+ static const char *hex = "0123456789abcdef";
+ size_t i = 0, j = 0;
+
+ for (i = j = 0; dst_len > 0 && i < s_len && j < dst_len - 1; i++, j++) {
+ if (isalnum(* (const unsigned char *) (src + i)) ||
+ strchr(dont_escape, * (const unsigned char *) (src + i)) != NULL) {
+ dst[j] = src[i];
+ } else if (j + 3 < dst_len) {
+ dst[j] = '%';
+ dst[j + 1] = hex[(* (const unsigned char *) (src + i)) >> 4];
+ dst[j + 2] = hex[(* (const unsigned char *) (src + i)) & 0xf];
+ j += 2;
+ }
+ }
+
+ dst[j] = '\0';
+ return j;
+}
+#endif // !NO_DIRECTORY_LISTING || !MONGOOSE_NO_DAV
+
+#ifndef MONGOOSE_NO_DIRECTORY_LISTING
+
+static void print_dir_entry(const struct dir_entry *de) {
+ char size[64], mod[64], href[MAX_PATH_SIZE * 3];
+ int64_t fsize = de->st.st_size;
+ int is_dir = S_ISDIR(de->st.st_mode);
+ const char *slash = is_dir ? "/" : "";
+
+ if (is_dir) {
+ mg_snprintf(size, sizeof(size), "%s", "[DIRECTORY]");
+ } else {
+ // We use (signed) cast below because MSVC 6 compiler cannot
+ // convert unsigned __int64 to double.
+ if (fsize < 1024) {
+ mg_snprintf(size, sizeof(size), "%d", (int) fsize);
+ } else if (fsize < 0x100000) {
+ mg_snprintf(size, sizeof(size), "%.1fk", (double) fsize / 1024.0);
+ } else if (fsize < 0x40000000) {
+ mg_snprintf(size, sizeof(size), "%.1fM", (double) fsize / 1048576);
+ } else {
+ mg_snprintf(size, sizeof(size), "%.1fG", (double) fsize / 1073741824);
+ }
+ }
+ strftime(mod, sizeof(mod), "%d-%b-%Y %H:%M", localtime(&de->st.st_mtime));
+ mg_url_encode(de->file_name, strlen(de->file_name), href, sizeof(href));
+ mg_printf_data(&de->conn->mg_conn,
+ "<tr><td><a href=\"%s%s\">%s%s</a></td>"
+ "<td>&nbsp;%s</td><td>&nbsp;&nbsp;%s</td></tr>\n",
+ href, slash, de->file_name, slash, mod, size);
+}
+
+// Sort directory entries by size, or name, or modification time.
+// On windows, __cdecl specification is needed in case if project is built
+// with __stdcall convention. qsort always requires __cdels callback.
+static int __cdecl compare_dir_entries(const void *p1, const void *p2) {
+ const struct dir_entry *a = (const struct dir_entry *) p1,
+ *b = (const struct dir_entry *) p2;
+ const char *qs = a->conn->mg_conn.query_string ?
+ a->conn->mg_conn.query_string : "na";
+ int cmp_result = 0;
+
+ if (S_ISDIR(a->st.st_mode) && !S_ISDIR(b->st.st_mode)) {
+ return -1; // Always put directories on top
+ } else if (!S_ISDIR(a->st.st_mode) && S_ISDIR(b->st.st_mode)) {
+ return 1; // Always put directories on top
+ } else if (*qs == 'n') {
+ cmp_result = strcmp(a->file_name, b->file_name);
+ } else if (*qs == 's') {
+ cmp_result = a->st.st_size == b->st.st_size ? 0 :
+ a->st.st_size > b->st.st_size ? 1 : -1;
+ } else if (*qs == 'd') {
+ cmp_result = a->st.st_mtime == b->st.st_mtime ? 0 :
+ a->st.st_mtime > b->st.st_mtime ? 1 : -1;
+ }
+
+ return qs[1] == 'd' ? -cmp_result : cmp_result;
+}
+
+static void send_directory_listing(struct connection *conn, const char *dir) {
+ struct dir_entry *arr = NULL;
+ int i, num_entries, sort_direction = conn->mg_conn.query_string != NULL &&
+ conn->mg_conn.query_string[1] == 'd' ? 'a' : 'd';
+
+ mg_send_header(&conn->mg_conn, "Transfer-Encoding", "chunked");
+ mg_send_header(&conn->mg_conn, "Content-Type", "text/html; charset=utf-8");
+
+ mg_printf_data(&conn->mg_conn,
+ "<html><head><title>Index of %s</title>"
+ "<style>th {text-align: left;}</style></head>"
+ "<body><h1>Index of %s</h1><pre><table cellpadding=\"0\">"
+ "<tr><th><a href=\"?n%c\">Name</a></th>"
+ "<th><a href=\"?d%c\">Modified</a></th>"
+ "<th><a href=\"?s%c\">Size</a></th></tr>"
+ "<tr><td colspan=\"3\"><hr></td></tr>",
+ conn->mg_conn.uri, conn->mg_conn.uri,
+ sort_direction, sort_direction, sort_direction);
+
+ num_entries = scan_directory(conn, dir, &arr);
+ qsort(arr, num_entries, sizeof(arr[0]), compare_dir_entries);
+ for (i = 0; i < num_entries; i++) {
+ print_dir_entry(&arr[i]);
+ free(arr[i].file_name);
+ }
+ free(arr);
+
+ write_terminating_chunk(conn);
+ close_local_endpoint(conn);
+}
+#endif // MONGOOSE_NO_DIRECTORY_LISTING
+
+#ifndef MONGOOSE_NO_DAV
+static void print_props(struct connection *conn, const char *uri,
+ file_stat_t *stp) {
+ char mtime[64];
+
+ gmt_time_string(mtime, sizeof(mtime), &stp->st_mtime);
+ mg_printf(&conn->mg_conn,
+ "<d:response>"
+ "<d:href>%s</d:href>"
+ "<d:propstat>"
+ "<d:prop>"
+ "<d:resourcetype>%s</d:resourcetype>"
+ "<d:getcontentlength>%" INT64_FMT "</d:getcontentlength>"
+ "<d:getlastmodified>%s</d:getlastmodified>"
+ "</d:prop>"
+ "<d:status>HTTP/1.1 200 OK</d:status>"
+ "</d:propstat>"
+ "</d:response>\n",
+ uri, S_ISDIR(stp->st_mode) ? "<d:collection/>" : "",
+ (int64_t) stp->st_size, mtime);
+}
+
+static void handle_propfind(struct connection *conn, const char *path,
+ file_stat_t *stp, int exists) {
+ static const char header[] = "HTTP/1.1 207 Multi-Status\r\n"
+ "Connection: close\r\n"
+ "Content-Type: text/xml; charset=utf-8\r\n\r\n"
+ "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+ "<d:multistatus xmlns:d='DAV:'>\n";
+ static const char footer[] = "</d:multistatus>";
+ const char *depth = mg_get_header(&conn->mg_conn, "Depth"),
+ *list_dir = conn->server->config_options[ENABLE_DIRECTORY_LISTING];
+
+ conn->mg_conn.status_code = 207;
+
+ // Print properties for the requested resource itself
+ if (!exists) {
+ conn->mg_conn.status_code = 404;
+ mg_printf(&conn->mg_conn, "%s", "HTTP/1.1 404 Not Found\r\n\r\n");
+ } else if (S_ISDIR(stp->st_mode) && mg_strcasecmp(list_dir, "yes") != 0) {
+ conn->mg_conn.status_code = 403;
+ mg_printf(&conn->mg_conn, "%s",
+ "HTTP/1.1 403 Directory Listing Denied\r\n\r\n");
+ } else {
+ ns_send(conn->ns_conn, header, sizeof(header) - 1);
+ print_props(conn, conn->mg_conn.uri, stp);
+
+ if (S_ISDIR(stp->st_mode) &&
+ (depth == NULL || strcmp(depth, "0") != 0)) {
+ struct dir_entry *arr = NULL;
+ int i, num_entries = scan_directory(conn, path, &arr);
+
+ for (i = 0; i < num_entries; i++) {
+ char buf[MAX_PATH_SIZE * 3];
+ struct dir_entry *de = &arr[i];
+ mg_url_encode(de->file_name, strlen(de->file_name), buf, sizeof(buf));
+ print_props(conn, buf, &de->st);
+ }
+ }
+ ns_send(conn->ns_conn, footer, sizeof(footer) - 1);
+ }
+
+ close_local_endpoint(conn);
+}
+
+static void handle_mkcol(struct connection *conn, const char *path) {
+ int status_code = 500;
+
+ if (conn->mg_conn.content_len > 0) {
+ status_code = 415;
+ } else if (!mkdir(path, 0755)) {
+ status_code = 201;
+ } else if (errno == EEXIST) {
+ status_code = 405;
+ } else if (errno == EACCES) {
+ status_code = 403;
+ } else if (errno == ENOENT) {
+ status_code = 409;
+ }
+ send_http_error(conn, status_code, NULL);
+}
+
+static int remove_directory(const char *dir) {
+ char path[MAX_PATH_SIZE];
+ struct dirent *dp;
+ file_stat_t st;
+ DIR *dirp;
+
+ if ((dirp = opendir(dir)) == NULL) return 0;
+
+ while ((dp = readdir(dirp)) != NULL) {
+ if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) continue;
+ mg_snprintf(path, sizeof(path), "%s%c%s", dir, '/', dp->d_name);
+ stat(path, &st);
+ if (S_ISDIR(st.st_mode)) {
+ remove_directory(path);
+ } else {
+ remove(path);
+ }
+ }
+ closedir(dirp);
+ rmdir(dir);
+
+ return 1;
+}
+
+static void handle_delete(struct connection *conn, const char *path) {
+ file_stat_t st;
+
+ if (stat(path, &st) != 0) {
+ send_http_error(conn, 404, NULL);
+ } else if (S_ISDIR(st.st_mode)) {
+ remove_directory(path);
+ send_http_error(conn, 204, NULL);
+ } else if (remove(path) == 0) {
+ send_http_error(conn, 204, NULL);
+ } else {
+ send_http_error(conn, 423, NULL);
+ }
}
-static int is_big_endian(void) {
- static const int n = 1;
- return ((char *) &n)[0] == 0;
+// For a given PUT path, create all intermediate subdirectories
+// for given path. Return 0 if the path itself is a directory,
+// or -1 on error, 1 if OK.
+static int put_dir(const char *path) {
+ char buf[MAX_PATH_SIZE];
+ const char *s, *p;
+ file_stat_t st;
+
+ // Create intermediate directories if they do not exist
+ for (s = p = path + 1; (p = strchr(s, '/')) != NULL; s = ++p) {
+ if (p - path >= (int) sizeof(buf)) return -1; // Buffer overflow
+ memcpy(buf, path, p - path);
+ buf[p - path] = '\0';
+ if (stat(buf, &st) != 0 && mkdir(buf, 0755) != 0) return -1;
+ if (p[1] == '\0') return 0; // Path is a directory itself
+ }
+
+ return 1;
+}
+
+static void handle_put(struct connection *conn, const char *path) {
+ file_stat_t st;
+ const char *range, *cl_hdr = mg_get_header(&conn->mg_conn, "Content-Length");
+ int64_t r1, r2;
+ int rc;
+
+ conn->mg_conn.status_code = !stat(path, &st) ? 200 : 201;
+ if ((rc = put_dir(path)) == 0) {
+ mg_printf(&conn->mg_conn, "HTTP/1.1 %d OK\r\n\r\n",
+ conn->mg_conn.status_code);
+ close_local_endpoint(conn);
+ } else if (rc == -1) {
+ send_http_error(conn, 500, "put_dir: %s", strerror(errno));
+ } else if (cl_hdr == NULL) {
+ send_http_error(conn, 411, NULL);
+#ifdef _WIN32
+ //On Windows, open() is a macro with 2 params
+ } else if ((conn->endpoint.fd =
+ open(path, O_RDWR | O_CREAT | O_TRUNC)) < 0) {
+#else
+ } else if ((conn->endpoint.fd =
+ open(path, O_RDWR | O_CREAT | O_TRUNC, 0644)) < 0) {
+#endif
+ send_http_error(conn, 500, "open(%s): %s", path, strerror(errno));
+ } else {
+ DBG(("PUT [%s] %zu", path, conn->ns_conn->recv_iobuf.len));
+ conn->endpoint_type = EP_PUT;
+ ns_set_close_on_exec(conn->endpoint.fd);
+ range = mg_get_header(&conn->mg_conn, "Content-Range");
+ conn->cl = to64(cl_hdr);
+ r1 = r2 = 0;
+ if (range != NULL && parse_range_header(range, &r1, &r2) > 0) {
+ conn->mg_conn.status_code = 206;
+ lseek(conn->endpoint.fd, r1, SEEK_SET);
+ conn->cl = r2 > r1 ? r2 - r1 + 1: conn->cl - r1;
+ }
+ mg_printf(&conn->mg_conn, "HTTP/1.1 %d OK\r\nContent-Length: 0\r\n\r\n",
+ conn->mg_conn.status_code);
+ }
+}
+
+static void forward_put_data(struct connection *conn) {
+ struct iobuf *io = &conn->ns_conn->recv_iobuf;
+ size_t k = conn->cl < (int64_t) io->len ? conn->cl : io->len; // To write
+ int n = write(conn->endpoint.fd, io->buf, k); // Write them!
+ if (n > 0) {
+ iobuf_remove(io, n);
+ conn->cl -= n;
+ }
+ if (conn->cl <= 0) {
+ close_local_endpoint(conn);
+ }
+}
+#endif // MONGOOSE_NO_DAV
+
+static void send_options(struct connection *conn) {
+ conn->mg_conn.status_code = 200;
+ mg_printf(&conn->mg_conn, "%s",
+ "HTTP/1.1 200 OK\r\nAllow: GET, POST, HEAD, CONNECT, PUT, "
+ "DELETE, OPTIONS, PROPFIND, MKCOL\r\nDAV: 1\r\n\r\n");
+ close_local_endpoint(conn);
+}
+
+#ifndef MONGOOSE_NO_AUTH
+void mg_send_digest_auth_request(struct mg_connection *c) {
+ struct connection *conn = MG_CONN_2_CONN(c);
+ c->status_code = 401;
+ mg_printf(c,
+ "HTTP/1.1 401 Unauthorized\r\n"
+ "WWW-Authenticate: Digest qop=\"auth\", "
+ "realm=\"%s\", nonce=\"%lu\"\r\n\r\n",
+ conn->server->config_options[AUTH_DOMAIN],
+ (unsigned long) time(NULL));
+ close_local_endpoint(conn);
}
-#ifndef HAVE_MD5
+// Use the global passwords file, if specified by auth_gpass option,
+// or search for .htpasswd in the requested directory.
+static FILE *open_auth_file(struct connection *conn, const char *path) {
+ char name[MAX_PATH_SIZE];
+ const char *p, *gpass = conn->server->config_options[GLOBAL_AUTH_FILE];
+ file_stat_t st;
+ FILE *fp = NULL;
+
+ if (gpass != NULL) {
+ // Use global passwords file
+ fp = fopen(gpass, "r");
+ } else if (!stat(path, &st) && S_ISDIR(st.st_mode)) {
+ mg_snprintf(name, sizeof(name), "%s%c%s", path, '/', PASSWORDS_FILE_NAME);
+ fp = fopen(name, "r");
+ } else {
+ // Try to find .htpasswd in requested directory.
+ if ((p = strrchr(path, '/')) == NULL) p = path;
+ mg_snprintf(name, sizeof(name), "%.*s%c%s",
+ (int) (p - path), path, '/', PASSWORDS_FILE_NAME);
+ fp = fopen(name, "r");
+ }
+
+ return fp;
+}
+
+#if !defined(HAVE_MD5) && !defined(MONGOOSE_NO_AUTH)
typedef struct MD5Context {
- uint32_t buf[4];
- uint32_t bits[2];
- unsigned char in[64];
+ uint32_t buf[4];
+ uint32_t bits[2];
+ unsigned char in[64];
} MD5_CTX;
static void byteReverse(unsigned char *buf, unsigned longs) {
- uint32_t t;
+ uint32_t t;
- // Forrest: MD5 expect LITTLE_ENDIAN, swap if BIG_ENDIAN
- if (is_big_endian()) {
- do {
- t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
- ((unsigned) buf[1] << 8 | buf[0]);
- * (uint32_t *) buf = t;
- buf += 4;
- } while (--longs);
- }
+ // Forrest: MD5 expect LITTLE_ENDIAN, swap if BIG_ENDIAN
+ if (is_big_endian()) {
+ do {
+ t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
+ ((unsigned) buf[1] << 8 | buf[0]);
+ * (uint32_t *) buf = t;
+ buf += 4;
+ } while (--longs);
+ }
}
#define F1(x, y, z) (z ^ (x & (y ^ z)))
@@ -2085,3322 +3513,1474 @@ static void byteReverse(unsigned char *buf, unsigned longs) {
#define F4(x, y, z) (y ^ (x | ~z))
#define MD5STEP(f, w, x, y, z, data, s) \
- ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
+ ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
// Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
// initialization constants.
static void MD5Init(MD5_CTX *ctx) {
- ctx->buf[0] = 0x67452301;
- ctx->buf[1] = 0xefcdab89;
- ctx->buf[2] = 0x98badcfe;
- ctx->buf[3] = 0x10325476;
+ ctx->buf[0] = 0x67452301;
+ ctx->buf[1] = 0xefcdab89;
+ ctx->buf[2] = 0x98badcfe;
+ ctx->buf[3] = 0x10325476;
- ctx->bits[0] = 0;
- ctx->bits[1] = 0;
+ ctx->bits[0] = 0;
+ ctx->bits[1] = 0;
}
static void MD5Transform(uint32_t buf[4], uint32_t const in[16]) {
- register uint32_t a, b, c, d;
-
- a = buf[0];
- b = buf[1];
- c = buf[2];
- d = buf[3];
-
- MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
- MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
- MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
- MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
- MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
- MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
- MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
- MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
- MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
- MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
- MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
- MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
- MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
- MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
- MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
- MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
-
- MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
- MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
- MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
- MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
- MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
- MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
- MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
- MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
- MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
- MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
- MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
- MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
- MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
- MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
- MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
- MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
-
- MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
- MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
- MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
- MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
- MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
- MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
- MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
- MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
- MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
- MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
- MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
- MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
- MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
- MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
- MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
- MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
-
- MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
- MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
- MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
- MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
- MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
- MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
- MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
- MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
- MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
- MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
- MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
- MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
- MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
- MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
- MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
- MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
-
- buf[0] += a;
- buf[1] += b;
- buf[2] += c;
- buf[3] += d;
+ register uint32_t a, b, c, d;
+
+ a = buf[0];
+ b = buf[1];
+ c = buf[2];
+ d = buf[3];
+
+ MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+ MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+ MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+ MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+ MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+ MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+ MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+ MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+ MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+ MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+ MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+ MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+ MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+ MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+ MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+ MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+ MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+ MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+ MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+ MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+ MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+ MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+ MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+ MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+ MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+ MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+ MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+ MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+ MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+ MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+ MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+ MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+ MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+ MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+ MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+ MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+ MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+ MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+ MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+ MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+ MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+ MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+ MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+ MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+ MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+ MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+ MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+ MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+ MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+ MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+ MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+ MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+ MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+ MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+ MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+ MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+ MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+ MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+ MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+ MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+ MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+ MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+ MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+ MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
+ buf[0] += a;
+ buf[1] += b;
+ buf[2] += c;
+ buf[3] += d;
}
static void MD5Update(MD5_CTX *ctx, unsigned char const *buf, unsigned len) {
- uint32_t t;
+ uint32_t t;
- t = ctx->bits[0];
- if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
- ctx->bits[1]++;
- ctx->bits[1] += len >> 29;
+ t = ctx->bits[0];
+ if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
+ ctx->bits[1]++;
+ ctx->bits[1] += len >> 29;
- t = (t >> 3) & 0x3f;
+ t = (t >> 3) & 0x3f;
- if (t) {
- unsigned char *p = (unsigned char *) ctx->in + t;
+ if (t) {
+ unsigned char *p = (unsigned char *) ctx->in + t;
- t = 64 - t;
- if (len < t) {
- memcpy(p, buf, len);
- return;
- }
- memcpy(p, buf, t);
- byteReverse(ctx->in, 16);
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
- buf += t;
- len -= t;
- }
+ t = 64 - t;
+ if (len < t) {
+ memcpy(p, buf, len);
+ return;
+ }
+ memcpy(p, buf, t);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+ buf += t;
+ len -= t;
+ }
- while (len >= 64) {
- memcpy(ctx->in, buf, 64);
- byteReverse(ctx->in, 16);
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
- buf += 64;
- len -= 64;
- }
+ while (len >= 64) {
+ memcpy(ctx->in, buf, 64);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+ buf += 64;
+ len -= 64;
+ }
- memcpy(ctx->in, buf, len);
+ memcpy(ctx->in, buf, len);
}
static void MD5Final(unsigned char digest[16], MD5_CTX *ctx) {
- unsigned count;
- unsigned char *p;
- uint32_t *a;
-
- count = (ctx->bits[0] >> 3) & 0x3F;
-
- p = ctx->in + count;
- *p++ = 0x80;
- count = 64 - 1 - count;
- if (count < 8) {
- memset(p, 0, count);
- byteReverse(ctx->in, 16);
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
- memset(ctx->in, 0, 56);
- } else {
- memset(p, 0, count - 8);
- }
- byteReverse(ctx->in, 14);
-
- a = (uint32_t *)ctx->in;
- a[14] = ctx->bits[0];
- a[15] = ctx->bits[1];
-
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
- byteReverse((unsigned char *) ctx->buf, 4);
- memcpy(digest, ctx->buf, 16);
- memset((char *) ctx, 0, sizeof(*ctx));
+ unsigned count;
+ unsigned char *p;
+ uint32_t *a;
+
+ count = (ctx->bits[0] >> 3) & 0x3F;
+
+ p = ctx->in + count;
+ *p++ = 0x80;
+ count = 64 - 1 - count;
+ if (count < 8) {
+ memset(p, 0, count);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+ memset(ctx->in, 0, 56);
+ } else {
+ memset(p, 0, count - 8);
+ }
+ byteReverse(ctx->in, 14);
+
+ a = (uint32_t *)ctx->in;
+ a[14] = ctx->bits[0];
+ a[15] = ctx->bits[1];
+
+ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+ byteReverse((unsigned char *) ctx->buf, 4);
+ memcpy(digest, ctx->buf, 16);
+ memset((char *) ctx, 0, sizeof(*ctx));
}
#endif // !HAVE_MD5
+
+
// Stringify binary data. Output buffer must be twice as big as input,
// because each byte takes 2 bytes in string representation
static void bin2str(char *to, const unsigned char *p, size_t len) {
- static const char *hex = "0123456789abcdef";
+ static const char *hex = "0123456789abcdef";
- for (; len--; p++) {
- *to++ = hex[p[0] >> 4];
- *to++ = hex[p[0] & 0x0f];
- }
- *to = '\0';
+ for (; len--; p++) {
+ *to++ = hex[p[0] >> 4];
+ *to++ = hex[p[0] & 0x0f];
+ }
+ *to = '\0';
}
// Return stringified MD5 hash for list of strings. Buffer must be 33 bytes.
char *mg_md5(char buf[33], ...) {
- unsigned char hash[16];
- const char *p;
- va_list ap;
- MD5_CTX ctx;
+ unsigned char hash[16];
+ const char *p;
+ va_list ap;
+ MD5_CTX ctx;
- MD5Init(&ctx);
+ MD5Init(&ctx);
- va_start(ap, buf);
- while ((p = va_arg(ap, const char *)) != NULL) {
- MD5Update(&ctx, (const unsigned char *) p, (unsigned) strlen(p));
- }
- va_end(ap);
+ va_start(ap, buf);
+ while ((p = va_arg(ap, const char *)) != NULL) {
+ MD5Update(&ctx, (const unsigned char *) p, (unsigned) strlen(p));
+ }
+ va_end(ap);
- MD5Final(hash, &ctx);
- bin2str(buf, hash, sizeof(hash));
- return buf;
+ MD5Final(hash, &ctx);
+ bin2str(buf, hash, sizeof(hash));
+ return buf;
}
// Check the user's password, return 1 if OK
static int check_password(const char *method, const char *ha1, const char *uri,
- const char *nonce, const char *nc, const char *cnonce,
- const char *qop, const char *response) {
- char ha2[32 + 1], expected_response[32 + 1];
-
- // Some of the parameters may be NULL
- if (method == NULL || nonce == NULL || nc == NULL || cnonce == NULL ||
- qop == NULL || response == NULL) {
- return 0;
- }
-
- // NOTE(lsm): due to a bug in MSIE, we do not compare the URI
- // TODO(lsm): check for authentication timeout
- if (// strcmp(dig->uri, c->ouri) != 0 ||
- strlen(response) != 32
- // || now - strtoul(dig->nonce, NULL, 10) > 3600
- ) {
- return 0;
- }
+ const char *nonce, const char *nc, const char *cnonce,
+ const char *qop, const char *response) {
+ char ha2[32 + 1], expected_response[32 + 1];
+
+#if 0
+ // Check for authentication timeout
+ if ((unsigned long) time(NULL) - (unsigned long) to64(nonce) > 3600 * 2) {
+ return 0;
+ }
+#endif
- mg_md5(ha2, method, ":", uri, NULL);
- mg_md5(expected_response, ha1, ":", nonce, ":", nc,
- ":", cnonce, ":", qop, ":", ha2, NULL);
+ mg_md5(ha2, method, ":", uri, NULL);
+ mg_md5(expected_response, ha1, ":", nonce, ":", nc,
+ ":", cnonce, ":", qop, ":", ha2, NULL);
- return mg_strcasecmp(response, expected_response) == 0;
+ return mg_strcasecmp(response, expected_response) == 0 ? MG_TRUE : MG_FALSE;
}
-// Use the global passwords file, if specified by auth_gpass option,
-// or search for .htpasswd in the requested directory.
-static void open_auth_file(struct mg_connection *conn, const char *path,
- struct file *filep) {
- char name[PATH_MAX];
- const char *p, *e, *gpass = conn->ctx->config[GLOBAL_PASSWORDS_FILE];
- struct file file = STRUCT_FILE_INITIALIZER;
-
- if (gpass != NULL) {
- // Use global passwords file
- if (!mg_fopen(conn, gpass, "r", filep)) {
- cry(conn, "fopen(%s): %s", gpass, strerror(ERRNO));
- }
- // Important: using local struct file to test path for is_directory flag.
- // If filep is used, mg_stat() makes it appear as if auth file was opened.
- } else if (mg_stat(conn, path, &file) && file.is_directory) {
- mg_snprintf(conn, name, sizeof(name), "%s%c%s",
- path, '/', PASSWORDS_FILE_NAME);
- mg_fopen(conn, name, "r", filep);
- } else {
- // Try to find .htpasswd in requested directory.
- for (p = path, e = p + strlen(p) - 1; e > p; e--)
- if (e[0] == '/')
- break;
- mg_snprintf(conn, name, sizeof(name), "%.*s%c%s",
- (int) (e - p), p, '/', PASSWORDS_FILE_NAME);
- mg_fopen(conn, name, "r", filep);
- }
-}
-
-// Parsed Authorization header
-struct ah {
- char *user, *uri, *cnonce, *response, *qop, *nc, *nonce;
-};
-
-// Return 1 on success. Always initializes the ah structure.
-static int parse_auth_header(struct mg_connection *conn, char *buf,
- size_t buf_size, struct ah *ah) {
- char *name, *value, *s;
- const char *auth_header;
-
- (void) memset(ah, 0, sizeof(*ah));
- if ((auth_header = mg_get_header(conn, "Authorization")) == NULL ||
- mg_strncasecmp(auth_header, "Digest ", 7) != 0) {
- return 0;
- }
-
- // Make modifiable copy of the auth header
- (void) mg_strlcpy(buf, auth_header + 7, buf_size);
- s = buf;
-
- // Parse authorization header
- for (;;) {
- // Gobble initial spaces
- while (isspace(* (unsigned char *) s)) {
- s++;
- }
- name = skip_quoted(&s, "=", " ", 0);
- // Value is either quote-delimited, or ends at first comma or space.
- if (s[0] == '\"') {
- s++;
- value = skip_quoted(&s, "\"", " ", '\\');
- if (s[0] == ',') {
- s++;
- }
- } else {
- value = skip_quoted(&s, ", ", " ", 0); // IE uses commas, FF uses spaces
- }
- if (*name == '\0') {
- break;
- }
-
- if (!strcmp(name, "username")) {
- ah->user = value;
- } else if (!strcmp(name, "cnonce")) {
- ah->cnonce = value;
- } else if (!strcmp(name, "response")) {
- ah->response = value;
- } else if (!strcmp(name, "uri")) {
- ah->uri = value;
- } else if (!strcmp(name, "qop")) {
- ah->qop = value;
- } else if (!strcmp(name, "nc")) {
- ah->nc = value;
- } else if (!strcmp(name, "nonce")) {
- ah->nonce = value;
- }
- }
-
- // CGI needs it as REMOTE_USER
- if (ah->user != NULL) {
- conn->request_info.remote_user = mg_strdup(ah->user);
- } else {
- return 0;
- }
-
- return 1;
-}
-
-static char *mg_fgets(char *buf, size_t size, struct file *filep, char **p) {
- char *eof;
- size_t len;
-
- if (filep->membuf != NULL && *p != NULL) {
- eof = (char*)memchr(*p, '\n', &filep->membuf[filep->size] - *p);
- len = (size_t) (eof - *p) > size - 1 ? size - 1 : (size_t) (eof - *p);
- memcpy(buf, *p, len);
- buf[len] = '\0';
- *p = eof;
- return eof;
- } else if (filep->fp != NULL) {
- return fgets(buf, size, filep->fp);
- } else {
- return NULL;
- }
-}
// Authorize against the opened passwords file. Return 1 if authorized.
-static int authorize(struct mg_connection *conn, struct file *filep) {
- struct ah ah;
- char line[256], f_user[256], ha1[256], f_domain[256], buf[MG_BUF_LEN], *p;
+int mg_authorize_digest(struct mg_connection *c, FILE *fp) {
+ struct connection *conn = MG_CONN_2_CONN(c);
+ const char *hdr;
+ char line[256], f_user[256], ha1[256], f_domain[256], user[100], nonce[100],
+ uri[MAX_REQUEST_SIZE], cnonce[100], resp[100], qop[100], nc[100];
+
+ if (c == NULL || fp == NULL) return 0;
+ if ((hdr = mg_get_header(c, "Authorization")) == NULL ||
+ mg_strncasecmp(hdr, "Digest ", 7) != 0) return 0;
+ if (!mg_parse_header(hdr, "username", user, sizeof(user))) return 0;
+ if (!mg_parse_header(hdr, "cnonce", cnonce, sizeof(cnonce))) return 0;
+ if (!mg_parse_header(hdr, "response", resp, sizeof(resp))) return 0;
+ if (!mg_parse_header(hdr, "uri", uri, sizeof(uri))) return 0;
+ if (!mg_parse_header(hdr, "qop", qop, sizeof(qop))) return 0;
+ if (!mg_parse_header(hdr, "nc", nc, sizeof(nc))) return 0;
+ if (!mg_parse_header(hdr, "nonce", nonce, sizeof(nonce))) return 0;
+
+ while (fgets(line, sizeof(line), fp) != NULL) {
+ if (sscanf(line, "%[^:]:%[^:]:%s", f_user, f_domain, ha1) == 3 &&
+ !strcmp(user, f_user) &&
+ // NOTE(lsm): due to a bug in MSIE, we do not compare URIs
+ !strcmp(conn->server->config_options[AUTH_DOMAIN], f_domain))
+ return check_password(c->request_method, ha1, uri,
+ nonce, nc, cnonce, qop, resp);
+ }
+ return MG_FALSE;
+}
- if (!parse_auth_header(conn, buf, sizeof(buf), &ah)) {
- return 0;
- }
- // Loop over passwords file
- p = (char *) filep->membuf;
- while (mg_fgets(line, sizeof(line), filep, &p) != NULL) {
- if (sscanf(line, "%[^:]:%[^:]:%s", f_user, f_domain, ha1) != 3) {
- continue;
- }
+// Return 1 if request is authorised, 0 otherwise.
+static int is_authorized(struct connection *conn, const char *path) {
+ FILE *fp;
+ int authorized = MG_TRUE;
- if (!strcmp(ah.user, f_user) &&
- !strcmp(conn->ctx->config[AUTHENTICATION_DOMAIN], f_domain))
- return check_password(conn->request_info.request_method, ha1, ah.uri,
- ah.nonce, ah.nc, ah.cnonce, ah.qop, ah.response);
- }
+ if ((fp = open_auth_file(conn, path)) != NULL) {
+ authorized = mg_authorize_digest(&conn->mg_conn, fp);
+ fclose(fp);
+ }
- return 0;
+ return authorized;
}
-// Return 1 if request is authorised, 0 otherwise.
-static int check_authorization(struct mg_connection *conn, const char *path) {
- char fname[PATH_MAX];
- struct vec uri_vec, filename_vec;
- const char *list;
- struct file file = STRUCT_FILE_INITIALIZER;
- int authorized = 1;
-
- list = conn->ctx->config[PROTECT_URI];
- while ((list = next_option(list, &uri_vec, &filename_vec)) != NULL) {
- if (!memcmp(conn->request_info.uri, uri_vec.ptr, uri_vec.len)) {
- mg_snprintf(conn, fname, sizeof(fname), "%.*s",
- (int) filename_vec.len, filename_vec.ptr);
- if (!mg_fopen(conn, fname, "r", &file)) {
- cry(conn, "%s: cannot open %s: %s", __func__, fname, strerror(errno));
- }
- break;
- }
- }
-
- if (!is_file_opened(&file)) {
- open_auth_file(conn, path, &file);
- }
-
- if (is_file_opened(&file)) {
- authorized = authorize(conn, &file);
- mg_fclose(&file);
- }
-
- return authorized;
-}
-
-static void send_authorization_request(struct mg_connection *conn) {
- conn->status_code = 401;
- mg_printf(conn,
- "HTTP/1.1 401 Unauthorized\r\n"
- "Content-Length: 0\r\n"
- "WWW-Authenticate: Digest qop=\"auth\", "
- "realm=\"%s\", nonce=\"%lu\"\r\n\r\n",
- conn->ctx->config[AUTHENTICATION_DOMAIN],
- (unsigned long) time(NULL));
-}
-
-static int is_authorized_for_put(struct mg_connection *conn) {
- struct file file = STRUCT_FILE_INITIALIZER;
- const char *passfile = conn->ctx->config[PUT_DELETE_PASSWORDS_FILE];
- int ret = 0;
-
- if (passfile != NULL && mg_fopen(conn, passfile, "r", &file)) {
- ret = authorize(conn, &file);
- mg_fclose(&file);
- }
-
- return ret;
-}
-
-int mg_modify_passwords_file(const char *fname, const char *domain,
- const char *user, const char *pass) {
- int found;
- char line[512], u[512], d[512], ha1[33], tmp[PATH_MAX];
- FILE *fp, *fp2;
-
- found = 0;
- fp = fp2 = NULL;
-
- // Regard empty password as no password - remove user record.
- if (pass != NULL && pass[0] == '\0') {
- pass = NULL;
- }
-
- (void) snprintf(tmp, sizeof(tmp), "%s.tmp", fname);
-
- // Create the file if does not exist
- if ((fp = fopen(fname, "a+")) != NULL) {
- (void) fclose(fp);
- }
-
- // Open the given file and temporary file
- if ((fp = fopen(fname, "r")) == NULL) {
- return 0;
- } else if ((fp2 = fopen(tmp, "w+")) == NULL) {
- fclose(fp);
- return 0;
- }
-
- // Copy the stuff to temporary file
- while (fgets(line, sizeof(line), fp) != NULL) {
- if (sscanf(line, "%[^:]:%[^:]:%*s", u, d) != 2) {
- continue;
- }
-
- if (!strcmp(u, user) && !strcmp(d, domain)) {
- found++;
- if (pass != NULL) {
- mg_md5(ha1, user, ":", domain, ":", pass, NULL);
- fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
- }
- } else {
- fprintf(fp2, "%s", line);
- }
- }
-
- // If new user, just add it
- if (!found && pass != NULL) {
- mg_md5(ha1, user, ":", domain, ":", pass, NULL);
- fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
- }
-
- // Close files
- fclose(fp);
- fclose(fp2);
-
- // Put the temp file in place of real file
- remove(fname);
- rename(tmp, fname);
-
- return 1;
-}
-
-static int conn2(const char *host, int port, int use_ssl,
- char *ebuf, size_t ebuf_len) {
- struct sockaddr_in sin;
- struct hostent *he;
- SOCKET sock = INVALID_SOCKET;
-
- if (host == NULL) {
- snprintf(ebuf, ebuf_len, "%s", "NULL host");
- } else if (use_ssl && SSLv23_client_method == NULL) {
- snprintf(ebuf, ebuf_len, "%s", "SSL is not initialized");
- // TODO(lsm): use something threadsafe instead of gethostbyname()
- } else if ((he = gethostbyname(host)) == NULL) {
- snprintf(ebuf, ebuf_len, "gethostbyname(%s): %s", host, strerror(ERRNO));
- } else if ((sock = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) {
- snprintf(ebuf, ebuf_len, "socket(): %s", strerror(ERRNO));
- } else {
- sin.sin_family = AF_INET;
- sin.sin_port = htons((uint16_t) port);
- sin.sin_addr = * (struct in_addr *) he->h_addr_list[0];
- if (connect(sock, (struct sockaddr *) &sin, sizeof(sin)) != 0) {
- snprintf(ebuf, ebuf_len, "connect(%s:%d): %s",
- host, port, strerror(ERRNO));
- closesocket(sock);
- sock = INVALID_SOCKET;
- }
- }
- return sock;
-}
-
-
-
-void mg_url_encode(const char *src, char *dst, size_t dst_len) {
- static const char *dont_escape = "._-$,;~()";
- static const char *hex = "0123456789abcdef";
- const char *end = dst + dst_len - 1;
-
- for (; *src != '\0' && dst < end; src++, dst++) {
- if (isalnum(*(const unsigned char *) src) ||
- strchr(dont_escape, * (const unsigned char *) src) != NULL) {
- *dst = *src;
- } else if (dst + 2 < end) {
- dst[0] = '%';
- dst[1] = hex[(* (const unsigned char *) src) >> 4];
- dst[2] = hex[(* (const unsigned char *) src) & 0xf];
- dst += 2;
- }
- }
-
- *dst = '\0';
-}
-
-static void print_dir_entry(struct de *de) {
- char size[64], mod[64], href[PATH_MAX];
-
- if (de->file.is_directory) {
- mg_snprintf(de->conn, size, sizeof(size), "%s", "[DIRECTORY]");
- } else {
- // We use (signed) cast below because MSVC 6 compiler cannot
- // convert unsigned __int64 to double. Sigh.
- if (de->file.size < 1024) {
- mg_snprintf(de->conn, size, sizeof(size), "%d", (int) de->file.size);
- } else if (de->file.size < 0x100000) {
- mg_snprintf(de->conn, size, sizeof(size),
- "%.1fk", (double) de->file.size / 1024.0);
- } else if (de->file.size < 0x40000000) {
- mg_snprintf(de->conn, size, sizeof(size),
- "%.1fM", (double) de->file.size / 1048576);
- } else {
- mg_snprintf(de->conn, size, sizeof(size),
- "%.1fG", (double) de->file.size / 1073741824);
- }
- }
- strftime(mod, sizeof(mod), "%d-%b-%Y %H:%M",
- localtime(&de->file.modification_time));
- mg_url_encode(de->file_name, href, sizeof(href));
- de->conn->num_bytes_sent += mg_printf(de->conn,
- "<tr><td><a href=\"%s%s%s\">%s%s</a></td>"
- "<td>&nbsp;%s</td><td>&nbsp;&nbsp;%s</td></tr>\n",
- de->conn->request_info.uri, href, de->file.is_directory ? "/" : "",
- de->file_name, de->file.is_directory ? "/" : "", mod, size);
-}
-
-// This function is called from send_directory() and used for
-// sorting directory entries by size, or name, or modification time.
-// On windows, __cdecl specification is needed in case if project is built
-// with __stdcall convention. qsort always requires __cdels callback.
-static int WINCDECL compare_dir_entries(const void *p1, const void *p2) {
- const struct de *a = (const struct de *) p1, *b = (const struct de *) p2;
- const char *query_string = a->conn->request_info.query_string;
- int cmp_result = 0;
-
- if (query_string == NULL) {
- query_string = "na";
- }
-
- if (a->file.is_directory && !b->file.is_directory) {
- return -1; // Always put directories on top
- } else if (!a->file.is_directory && b->file.is_directory) {
- return 1; // Always put directories on top
- } else if (*query_string == 'n') {
- cmp_result = strcmp(a->file_name, b->file_name);
- } else if (*query_string == 's') {
- cmp_result = a->file.size == b->file.size ? 0 :
- a->file.size > b->file.size ? 1 : -1;
- } else if (*query_string == 'd') {
- cmp_result = a->file.modification_time == b->file.modification_time ? 0 :
- a->file.modification_time > b->file.modification_time ? 1 : -1;
- }
-
- return query_string[1] == 'd' ? -cmp_result : cmp_result;
-}
-
-static int must_hide_file(struct mg_connection *conn, const char *path) {
- const char *pw_pattern = "**" PASSWORDS_FILE_NAME "$";
- const char *pattern = conn->ctx->config[HIDE_FILES];
- return match_prefix(pw_pattern, strlen(pw_pattern), path) > 0 ||
- (pattern != NULL && match_prefix(pattern, strlen(pattern), path) > 0);
-}
-
-static int scan_directory(struct mg_connection *conn, const char *dir,
- void *data, void (*cb)(struct de *, void *)) {
- char path[PATH_MAX];
- struct dirent *dp;
- DIR *dirp;
- struct de de;
-
- if ((dirp = opendir(dir)) == NULL) {
- return 0;
- } else {
- de.conn = conn;
-
- while ((dp = readdir(dirp)) != NULL) {
- // Do not show current dir and hidden files
- if (!strcmp(dp->d_name, ".") ||
- !strcmp(dp->d_name, "..") ||
- must_hide_file(conn, dp->d_name)) {
- continue;
- }
-
- mg_snprintf(conn, path, sizeof(path), "%s%c%s", dir, '/', dp->d_name);
-
- // If we don't memset stat structure to zero, mtime will have
- // garbage and strftime() will segfault later on in
- // print_dir_entry(). memset is required only if mg_stat()
- // fails. For more details, see
- // http://code.google.com/p/mongoose/issues/detail?id=79
- memset(&de.file, 0, sizeof(de.file));
- mg_stat(conn, path, &de.file);
-
- de.file_name = dp->d_name;
- cb(&de, data);
- }
- (void) closedir(dirp);
- }
- return 1;
-}
-
-static int remove_directory(struct mg_connection *conn, const char *dir) {
- char path[PATH_MAX];
- struct dirent *dp;
- DIR *dirp;
- struct de de;
-
- if ((dirp = opendir(dir)) == NULL) {
- return 0;
- } else {
- de.conn = conn;
-
- while ((dp = readdir(dirp)) != NULL) {
- // Do not show current dir (but show hidden files as they will also be removed)
- if (!strcmp(dp->d_name, ".") ||
- !strcmp(dp->d_name, "..")) {
- continue;
- }
-
- mg_snprintf(conn, path, sizeof(path), "%s%c%s", dir, '/', dp->d_name);
-
- // If we don't memset stat structure to zero, mtime will have
- // garbage and strftime() will segfault later on in
- // print_dir_entry(). memset is required only if mg_stat()
- // fails. For more details, see
- // http://code.google.com/p/mongoose/issues/detail?id=79
- memset(&de.file, 0, sizeof(de.file));
- mg_stat(conn, path, &de.file);
- if(de.file.modification_time) {
- if(de.file.is_directory) {
- remove_directory(conn, path);
- } else {
- mg_remove(path);
- }
- }
-
- }
- (void) closedir(dirp);
-
- rmdir(dir);
- }
-
- return 1;
-}
-
-struct dir_scan_data {
- struct de *entries;
- int num_entries;
- int arr_size;
-};
+static int is_authorized_for_dav(struct connection *conn) {
+ const char *auth_file = conn->server->config_options[DAV_AUTH_FILE];
+ const char *method = conn->mg_conn.request_method;
+ FILE *fp;
+ int authorized = MG_FALSE;
-// Behaves like realloc(), but frees original pointer on failure
-static void *realloc2(void *ptr, size_t size) {
- void *new_ptr = realloc(ptr, size);
- if (new_ptr == NULL) {
- free(ptr);
- }
- return new_ptr;
-}
-
-static void dir_scan_callback(struct de *de, void *data) {
- struct dir_scan_data *dsd = (struct dir_scan_data *) data;
-
- if (dsd->entries == NULL || dsd->num_entries >= dsd->arr_size) {
- dsd->arr_size *= 2;
- dsd->entries = (struct de *) realloc2(dsd->entries, dsd->arr_size *
- sizeof(dsd->entries[0]));
- }
- if (dsd->entries == NULL) {
- // TODO(lsm): propagate an error to the caller
- dsd->num_entries = 0;
- } else {
- dsd->entries[dsd->num_entries].file_name = mg_strdup(de->file_name);
- dsd->entries[dsd->num_entries].file = de->file;
- dsd->entries[dsd->num_entries].conn = de->conn;
- dsd->num_entries++;
- }
-}
-
-static void handle_directory_request(struct mg_connection *conn,
- const char *dir) {
- int i, sort_direction;
- struct dir_scan_data data = { NULL, 0, 128 };
-
- if (!scan_directory(conn, dir, &data, dir_scan_callback)) {
- send_http_error(conn, 500, "Cannot open directory",
- "Error: opendir(%s): %s", dir, strerror(ERRNO));
- return;
- }
-
- sort_direction = conn->request_info.query_string != NULL &&
- conn->request_info.query_string[1] == 'd' ? 'a' : 'd';
-
- conn->must_close = 1;
- mg_printf(conn, "%s",
- "HTTP/1.1 200 OK\r\n"
- "Connection: close\r\n"
- "Content-Type: text/html; charset=utf-8\r\n\r\n");
-
- conn->num_bytes_sent += mg_printf(conn,
- "<html><head><title>Index of %s</title>"
- "<style>th {text-align: left;}</style></head>"
- "<body><h1>Index of %s</h1><pre><table cellpadding=\"0\">"
- "<tr><th><a href=\"?n%c\">Name</a></th>"
- "<th><a href=\"?d%c\">Modified</a></th>"
- "<th><a href=\"?s%c\">Size</a></th></tr>"
- "<tr><td colspan=\"3\"><hr></td></tr>",
- conn->request_info.uri, conn->request_info.uri,
- sort_direction, sort_direction, sort_direction);
-
- // Print first entry - link to a parent directory
- conn->num_bytes_sent += mg_printf(conn,
- "<tr><td><a href=\"%s%s\">%s</a></td>"
- "<td>&nbsp;%s</td><td>&nbsp;&nbsp;%s</td></tr>\n",
- conn->request_info.uri, "..", "Parent directory", "-", "-");
-
- // Sort and print directory entries
- qsort(data.entries, (size_t) data.num_entries, sizeof(data.entries[0]),
- compare_dir_entries);
- for (i = 0; i < data.num_entries; i++) {
- print_dir_entry(&data.entries[i]);
- free(data.entries[i].file_name);
- }
- free(data.entries);
-
- conn->num_bytes_sent += mg_printf(conn, "%s", "</table></body></html>");
- conn->status_code = 200;
-}
-
-// Send len bytes from the opened file to the client.
-static void send_file_data(struct mg_connection *conn, struct file *filep,
- int64_t offset, int64_t len) {
- char buf[MG_BUF_LEN];
- int to_read, num_read, num_written;
-
- // Sanity check the offset
- offset = offset < 0 ? 0 : offset > filep->size ? filep->size : offset;
-
- if (len > 0 && filep->membuf != NULL && filep->size > 0) {
- if (len > filep->size - offset) {
- len = filep->size - offset;
- }
- mg_write(conn, filep->membuf + offset, (size_t) len);
- } else if (len > 0 && filep->fp != NULL) {
- fseeko(filep->fp, offset, SEEK_SET);
- while (len > 0) {
- // Calculate how much to read from the file in the buffer
- to_read = sizeof(buf);
- if ((int64_t) to_read > len) {
- to_read = (int) len;
- }
-
- // Read from file, exit the loop on error
- if ((num_read = fread(buf, 1, (size_t) to_read, filep->fp)) <= 0) {
- break;
- }
-
- // Send read bytes to the client, exit the loop on error
- if ((num_written = mg_write(conn, buf, (size_t) num_read)) != num_read) {
- break;
- }
-
- // Both read and were successful, adjust counters
- conn->num_bytes_sent += num_written;
- len -= num_written;
- }
- }
-}
+ // If dav_auth_file is not set, allow non-authorized PROPFIND
+ if (method != NULL && !strcmp(method, "PROPFIND") && auth_file == NULL) {
+ authorized = MG_TRUE;
+ } else if (auth_file != NULL && (fp = fopen(auth_file, "r")) != NULL) {
+ authorized = mg_authorize_digest(&conn->mg_conn, fp);
+ fclose(fp);
+ }
-static int parse_range_header(const char *header, int64_t *a, int64_t *b) {
- return sscanf(header, "bytes=%" INT64_FMT "-%" INT64_FMT, a, b);
+ return authorized;
}
-static void gmt_time_string(char *buf, size_t buf_len, time_t *t) {
- strftime(buf, buf_len, "%a, %d %b %Y %H:%M:%S GMT", gmtime(t));
+static int is_dav_request(const struct connection *conn) {
+ const char *s = conn->mg_conn.request_method;
+ return !strcmp(s, "PUT") || !strcmp(s, "DELETE") ||
+ !strcmp(s, "MKCOL") || !strcmp(s, "PROPFIND");
}
+#endif // MONGOOSE_NO_AUTH
-static void construct_etag(char *buf, size_t buf_len,
- const struct file *filep) {
- snprintf(buf, buf_len, "\"%lx.%" INT64_FMT "\"",
- (unsigned long) filep->modification_time, filep->size);
-}
+static int parse_header(const char *str, int str_len, const char *var_name,
+ char *buf, size_t buf_size) {
+ int ch = ' ', len = 0, n = strlen(var_name);
+ const char *p, *end = str + str_len, *s = NULL;
-static void fclose_on_exec(struct file *filep) {
- if (filep != NULL && filep->fp != NULL) {
-#ifndef _WIN32
- fcntl(fileno(filep->fp), F_SETFD, FD_CLOEXEC);
-#endif
- }
-}
-
-static void handle_file_request(struct mg_connection *conn, const char *path,
- struct file *filep) {
- char date[64], lm[64], etag[64], range[64];
- const char *msg = "OK", *hdr;
- time_t curtime = time(NULL);
- int64_t cl, r1, r2;
- struct vec mime_vec;
- int n;
- char gz_path[PATH_MAX];
- char const* encoding = "";
-
- get_mime_type(conn->ctx, path, &mime_vec);
- cl = filep->size;
- conn->status_code = 200;
- range[0] = '\0';
-
- // if this file is in fact a pre-gzipped file, rewrite its filename
- // it's important to rewrite the filename after resolving
- // the mime type from it, to preserve the actual file's type
- if (filep->gzipped) {
- snprintf(gz_path, sizeof(gz_path), "%s.gz", path);
- path = gz_path;
- encoding = "Content-Encoding: gzip\r\n";
- }
-
- if (!mg_fopen(conn, path, "rb", filep)) {
- send_http_error(conn, 500, http_500_error,
- "fopen(%s): %s", path, strerror(ERRNO));
- return;
- }
-
- fclose_on_exec(filep);
-
- // If Range: header specified, act accordingly
- r1 = r2 = 0;
- hdr = mg_get_header(conn, "Range");
- if (hdr != NULL && (n = parse_range_header(hdr, &r1, &r2)) > 0 &&
- r1 >= 0 && r2 >= 0) {
- // actually, range requests don't play well with a pre-gzipped
- // file (since the range is specified in the uncmpressed space)
- if (filep->gzipped) {
- send_http_error(conn, 501, "Not Implemented", "range requests in gzipped files are not supported");
- return;
- }
- conn->status_code = 206;
- cl = n == 2 ? (r2 > cl ? cl : r2) - r1 + 1: cl - r1;
- mg_snprintf(conn, range, sizeof(range),
- "Content-Range: bytes "
- "%" INT64_FMT "-%"
- INT64_FMT "/%" INT64_FMT "\r\n",
- r1, r1 + cl - 1, filep->size);
- msg = "Partial Content";
- }
-
- // Prepare Etag, Date, Last-Modified headers. Must be in UTC, according to
- // http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3
- gmt_time_string(date, sizeof(date), &curtime);
- gmt_time_string(lm, sizeof(lm), &filep->modification_time);
- construct_etag(etag, sizeof(etag), filep);
-
- (void) mg_printf(conn,
- "HTTP/1.1 %d %s\r\n"
- "Date: %s\r\n"
- "Last-Modified: %s\r\n"
- "Etag: %s\r\n"
- "Content-Type: %.*s\r\n"
- "Content-Length: %" INT64_FMT "\r\n"
- "Connection: %s\r\n"
- "Accept-Ranges: bytes\r\n"
- "%s%s\r\n",
- conn->status_code, msg, date, lm, etag, (int) mime_vec.len,
- mime_vec.ptr, cl, suggest_connection_header(conn), range, encoding);
-
- if (strcmp(conn->request_info.request_method, "HEAD") != 0) {
- send_file_data(conn, filep, r1, cl);
- }
- mg_fclose(filep);
-}
-
-void mg_send_file(struct mg_connection *conn, const char *path) {
- struct file file = STRUCT_FILE_INITIALIZER;
- if (mg_stat(conn, path, &file)) {
- handle_file_request(conn, path, &file);
- } else {
- send_http_error(conn, 404, "Not Found", "%s", "File not found");
- }
-}
+ if (buf != NULL && buf_size > 0) buf[0] = '\0';
+ // Find where variable starts
+ for (s = str; s != NULL && s + n < end; s++) {
+ if ((s == str || s[-1] == ' ' || s[-1] == ',') && s[n] == '=' &&
+ !memcmp(s, var_name, n)) break;
+ }
-// Parse HTTP headers from the given buffer, advance buffer to the point
-// where parsing stopped.
-static void parse_http_headers(char **buf, struct mg_request_info *ri) {
- int i;
+ if (s != NULL && &s[n + 1] < end) {
+ s += n + 1;
+ if (*s == '"' || *s == '\'') ch = *s++;
+ p = s;
+ while (p < end && p[0] != ch && p[0] != ',' && len < (int) buf_size) {
+ if (p[0] == '\\' && p[1] == ch) p++;
+ buf[len++] = *p++;
+ }
+ if (len >= (int) buf_size || (ch != ' ' && *p != ch)) {
+ len = 0;
+ } else {
+ if (len > 0 && s[len - 1] == ',') len--;
+ if (len > 0 && s[len - 1] == ';') len--;
+ buf[len] = '\0';
+ }
+ }
- for (i = 0; i < (int) ARRAY_SIZE(ri->http_headers); i++) {
- ri->http_headers[i].name = skip_quoted(buf, ":", " ", 0);
- ri->http_headers[i].value = skip(buf, "\r\n");
- if (ri->http_headers[i].name[0] == '\0')
- break;
- ri->num_headers = i + 1;
- }
+ return len;
}
-static int is_valid_http_method(const char *method) {
- return !strcmp(method, "GET") || !strcmp(method, "POST") ||
- !strcmp(method, "HEAD") || !strcmp(method, "CONNECT") ||
- !strcmp(method, "PUT") || !strcmp(method, "DELETE") ||
- !strcmp(method, "OPTIONS") || !strcmp(method, "PROPFIND")
- || !strcmp(method, "MKCOL")
- ;
+int mg_parse_header(const char *s, const char *var_name, char *buf,
+ size_t buf_size) {
+ return parse_header(s, s == NULL ? 0 : strlen(s), var_name, buf, buf_size);
}
-// Parse HTTP request, fill in mg_request_info structure.
-// This function modifies the buffer by NUL-terminating
-// HTTP request components, header names and header values.
-static int parse_http_message(char *buf, int len, struct mg_request_info *ri) {
- int is_request, request_length = get_request_len(buf, len);
- if (request_length > 0) {
- // Reset attributes. DO NOT TOUCH is_ssl, remote_ip, remote_port
- ri->remote_user = ri->request_method = ri->uri = ri->http_version = NULL;
- ri->num_headers = 0;
-
- buf[request_length - 1] = '\0';
-
- // RFC says that all initial whitespaces should be ingored
- while (*buf != '\0' && isspace(* (unsigned char *) buf)) {
- buf++;
- }
- ri->request_method = skip(&buf, " ");
- ri->uri = skip(&buf, " ");
- ri->http_version = skip(&buf, "\r\n");
- if (((is_request = is_valid_http_method(ri->request_method)) &&
- memcmp(ri->http_version, "HTTP/", 5) != 0) ||
- (!is_request && memcmp(ri->request_method, "HTTP/", 5)) != 0) {
- request_length = -1;
- } else {
- if (is_request) {
- ri->http_version += 5;
- }
- parse_http_headers(&buf, ri);
- }
- }
- return request_length;
-}
-
-// Keep reading the input (either opened file descriptor fd, or socket sock,
-// or SSL descriptor ssl) into buffer buf, until \r\n\r\n appears in the
-// buffer (which marks the end of HTTP request). Buffer buf may already
-// have some data. The length of the data is stored in nread.
-// Upon every read operation, increase nread by the number of bytes read.
-static int read_request(FILE *fp, struct mg_connection *conn,
- char *buf, int bufsiz, int *nread) {
- int request_len, n = 0;
-
- request_len = get_request_len(buf, *nread);
- while (*nread < bufsiz && request_len == 0 &&
- (n = pull(fp, conn, buf + *nread, bufsiz - *nread)) > 0) {
- *nread += n;
- assert(*nread <= bufsiz);
- request_len = get_request_len(buf, *nread);
- }
-
- return request_len <= 0 && n <= 0 ? -1 : request_len;
-}
+#ifndef MONGOOSE_NO_SSI
+static void send_ssi_file(struct mg_connection *, const char *, FILE *, int);
-// For given directory path, substitute it to valid index file.
-// Return 0 if index file has been found, -1 if not found.
-// If the file is found, it's stats is returned in stp.
-static int substitute_index_file(struct mg_connection *conn, char *path,
- size_t path_len, struct file *filep) {
- const char *list = conn->ctx->config[INDEX_FILES];
- struct file file = STRUCT_FILE_INITIALIZER;
- struct vec filename_vec;
- size_t n = strlen(path);
- int found = 0;
-
- // The 'path' given to us points to the directory. Remove all trailing
- // directory separator characters from the end of the path, and
- // then append single directory separator character.
- while (n > 0 && path[n - 1] == '/') {
- n--;
- }
- path[n] = '/';
-
- // Traverse index files list. For each entry, append it to the given
- // path and see if the file exists. If it exists, break the loop
- while ((list = next_option(list, &filename_vec, NULL)) != NULL) {
- // Ignore too long entries that may overflow path buffer
- if (filename_vec.len > path_len - (n + 2))
- continue;
-
- // Prepare full path to the index file
- mg_strlcpy(path + n + 1, filename_vec.ptr, filename_vec.len + 1);
-
- // Does it exist?
- if (mg_stat(conn, path, &file)) {
- // Yes it does, break the loop
- *filep = file;
- found = 1;
- break;
- }
- }
-
- // If no index file exists, restore directory path
- if (!found) {
- path[n] = '\0';
- }
-
- return found;
+static void send_file_data(struct mg_connection *conn, FILE *fp) {
+ char buf[IOBUF_SIZE];
+ int n;
+ while ((n = fread(buf, 1, sizeof(buf), fp)) > 0) {
+ mg_write(conn, buf, n);
+ }
}
-// Return True if we should reply 304 Not Modified.
-static int is_not_modified(const struct mg_connection *conn,
- const struct file *filep) {
- char etag[64];
- const char *ims = mg_get_header(conn, "If-Modified-Since");
- const char *inm = mg_get_header(conn, "If-None-Match");
- construct_etag(etag, sizeof(etag), filep);
- return (inm != NULL && !mg_strcasecmp(etag, inm)) ||
- (ims != NULL && filep->modification_time <= parse_date_string(ims));
-}
-
-static int forward_body_data(struct mg_connection *conn, FILE *fp,
- SOCKET sock, SSL *ssl) {
- const char *expect, *body;
- char buf[MG_BUF_LEN];
- int to_read, nread, buffered_len, success = 0;
-
- expect = mg_get_header(conn, "Expect");
- assert(fp != NULL);
-
- if (conn->content_len == -1) {
- send_http_error(conn, 411, "Length Required", "%s", "");
- } else if (expect != NULL && mg_strcasecmp(expect, "100-continue")) {
- send_http_error(conn, 417, "Expectation Failed", "%s", "");
- } else {
- if (expect != NULL) {
- (void) mg_printf(conn, "%s", "HTTP/1.1 100 Continue\r\n\r\n");
- }
-
- body = conn->buf + conn->request_len + conn->consumed_content;
- buffered_len = &conn->buf[conn->data_len] - body;
- assert(buffered_len >= 0);
- assert(conn->consumed_content == 0);
-
- if (buffered_len > 0) {
- if ((int64_t) buffered_len > conn->content_len) {
- buffered_len = (int) conn->content_len;
- }
- push(fp, sock, ssl, body, (int64_t) buffered_len);
- conn->consumed_content += buffered_len;
- }
-
- nread = 0;
- while (conn->consumed_content < conn->content_len) {
- to_read = sizeof(buf);
- if ((int64_t) to_read > conn->content_len - conn->consumed_content) {
- to_read = (int) (conn->content_len - conn->consumed_content);
- }
- nread = pull(NULL, conn, buf, to_read);
- if (nread <= 0 || push(fp, sock, ssl, buf, nread) != nread) {
- break;
- }
- conn->consumed_content += nread;
- }
-
- if (conn->consumed_content == conn->content_len) {
- success = nread >= 0;
- }
-
- // Each error code path in this function must send an error
- if (!success) {
- send_http_error(conn, 577, http_500_error, "%s", "");
- }
- }
-
- return success;
-}
-
-#if !defined(NO_CGI)
-// This structure helps to create an environment for the spawned CGI program.
-// Environment is an array of "VARIABLE=VALUE\0" ASCIIZ strings,
-// last element must be NULL.
-// However, on Windows there is a requirement that all these VARIABLE=VALUE\0
-// strings must reside in a contiguous buffer. The end of the buffer is
-// marked by two '\0' characters.
-// We satisfy both worlds: we create an envp array (which is vars), all
-// entries are actually pointers inside buf.
-struct cgi_env_block {
- struct mg_connection *conn;
- char buf[CGI_ENVIRONMENT_SIZE]; // Environment buffer
- int len; // Space taken
- char *vars[MAX_CGI_ENVIR_VARS]; // char **envp
- int nvars; // Number of variables
-};
-
-static char *addenv(struct cgi_env_block *block,
- PRINTF_FORMAT_STRING(const char *fmt), ...)
- PRINTF_ARGS(2, 3);
-
-// Append VARIABLE=VALUE\0 string to the buffer, and add a respective
-// pointer into the vars array.
-static char *addenv(struct cgi_env_block *block, const char *fmt, ...) {
- int n, space;
- char *added;
- va_list ap;
-
- // Calculate how much space is left in the buffer
- space = sizeof(block->buf) - block->len - 2;
- assert(space >= 0);
-
- // Make a pointer to the free space int the buffer
- added = block->buf + block->len;
-
- // Copy VARIABLE=VALUE\0 string into the free space
- va_start(ap, fmt);
- n = mg_vsnprintf(block->conn, added, (size_t) space, fmt, ap);
- va_end(ap);
-
- // Make sure we do not overflow buffer and the envp array
- if (n > 0 && n + 1 < space &&
- block->nvars < (int) ARRAY_SIZE(block->vars) - 2) {
- // Append a pointer to the added string into the envp array
- block->vars[block->nvars++] = added;
- // Bump up used length counter. Include \0 terminator
- block->len += n + 1;
- } else {
- cry(block->conn, "%s: CGI env buffer truncated for [%s]", __func__, fmt);
- }
-
- return added;
-}
-
-static void prepare_cgi_environment(struct mg_connection *conn,
- const char *prog,
- struct cgi_env_block *blk) {
- const char *s, *slash;
- struct vec var_vec;
- char *p, src_addr[IP_ADDR_STR_LEN];
- int i;
-
- blk->len = blk->nvars = 0;
- blk->conn = conn;
- sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
-
- addenv(blk, "SERVER_NAME=%s", conn->ctx->config[AUTHENTICATION_DOMAIN]);
- addenv(blk, "SERVER_ROOT=%s", conn->ctx->config[DOCUMENT_ROOT]);
- addenv(blk, "DOCUMENT_ROOT=%s", conn->ctx->config[DOCUMENT_ROOT]);
-
- // Prepare the environment block
- addenv(blk, "%s", "GATEWAY_INTERFACE=CGI/1.1");
- addenv(blk, "%s", "SERVER_PROTOCOL=HTTP/1.1");
- addenv(blk, "%s", "REDIRECT_STATUS=200"); // For PHP
-
- // TODO(lsm): fix this for IPv6 case
- addenv(blk, "SERVER_PORT=%d", ntohs(conn->client.lsa.sin.sin_port));
-
- addenv(blk, "REQUEST_METHOD=%s", conn->request_info.request_method);
- addenv(blk, "REMOTE_ADDR=%s", src_addr);
- addenv(blk, "REMOTE_PORT=%d", conn->request_info.remote_port);
- addenv(blk, "REQUEST_URI=%s", conn->request_info.uri);
-
- // SCRIPT_NAME
- assert(conn->request_info.uri[0] == '/');
- slash = strrchr(conn->request_info.uri, '/');
- if ((s = strrchr(prog, '/')) == NULL)
- s = prog;
- addenv(blk, "SCRIPT_NAME=%.*s%s", (int) (slash - conn->request_info.uri),
- conn->request_info.uri, s);
-
- addenv(blk, "SCRIPT_FILENAME=%s", prog);
- addenv(blk, "PATH_TRANSLATED=%s", prog);
- addenv(blk, "HTTPS=%s", conn->ssl == NULL ? "off" : "on");
-
- if ((s = mg_get_header(conn, "Content-Type")) != NULL)
- addenv(blk, "CONTENT_TYPE=%s", s);
-
- if (conn->request_info.query_string != NULL)
- addenv(blk, "QUERY_STRING=%s", conn->request_info.query_string);
-
- if ((s = mg_get_header(conn, "Content-Length")) != NULL)
- addenv(blk, "CONTENT_LENGTH=%s", s);
-
- if ((s = getenv("PATH")) != NULL)
- addenv(blk, "PATH=%s", s);
-
- if (conn->path_info != NULL) {
- addenv(blk, "PATH_INFO=%s", conn->path_info);
- }
-
-#if defined(_WIN32)
- if ((s = getenv("COMSPEC")) != NULL) {
- addenv(blk, "COMSPEC=%s", s);
- }
- if ((s = getenv("SYSTEMROOT")) != NULL) {
- addenv(blk, "SYSTEMROOT=%s", s);
- }
- if ((s = getenv("SystemDrive")) != NULL) {
- addenv(blk, "SystemDrive=%s", s);
- }
- if ((s = getenv("ProgramFiles")) != NULL) {
- addenv(blk, "ProgramFiles=%s", s);
- }
- if ((s = getenv("ProgramFiles(x86)")) != NULL) {
- addenv(blk, "ProgramFiles(x86)=%s", s);
- }
-#else
- if ((s = getenv("LD_LIBRARY_PATH")) != NULL)
- addenv(blk, "LD_LIBRARY_PATH=%s", s);
-#endif // _WIN32
-
- if ((s = getenv("PERLLIB")) != NULL)
- addenv(blk, "PERLLIB=%s", s);
-
- if (conn->request_info.remote_user != NULL) {
- addenv(blk, "REMOTE_USER=%s", conn->request_info.remote_user);
- addenv(blk, "%s", "AUTH_TYPE=Digest");
- }
-
- // Add all headers as HTTP_* variables
- for (i = 0; i < conn->request_info.num_headers; i++) {
- p = addenv(blk, "HTTP_%s=%s",
- conn->request_info.http_headers[i].name,
- conn->request_info.http_headers[i].value);
-
- // Convert variable name into uppercase, and change - to _
- for (; *p != '=' && *p != '\0'; p++) {
- if (*p == '-')
- *p = '_';
- *p = (char) toupper(* (unsigned char *) p);
- }
- }
-
- // Add user-specified variables
- s = conn->ctx->config[CGI_ENVIRONMENT];
- while ((s = next_option(s, &var_vec, NULL)) != NULL) {
- addenv(blk, "%.*s", (int) var_vec.len, var_vec.ptr);
- }
-
- blk->vars[blk->nvars++] = NULL;
- blk->buf[blk->len++] = '\0';
-
- assert(blk->nvars < (int) ARRAY_SIZE(blk->vars));
- assert(blk->len > 0);
- assert(blk->len < (int) sizeof(blk->buf));
-}
-
-static void handle_cgi_request(struct mg_connection *conn, const char *prog) {
- int headers_len, data_len, i, fd_stdin[2], fd_stdout[2];
- const char *status, *status_text;
- char buf[16384], *pbuf, dir[PATH_MAX], *p;
- struct mg_request_info ri;
- struct cgi_env_block blk;
- FILE *in, *out;
- struct file fout = STRUCT_FILE_INITIALIZER;
- pid_t pid;
- ri.mg_request_info::num_headers = 0;
-
- prepare_cgi_environment(conn, prog, &blk);
-
- // CGI must be executed in its own directory. 'dir' must point to the
- // directory containing executable program, 'p' must point to the
- // executable program name relative to 'dir'.
- (void) mg_snprintf(conn, dir, sizeof(dir), "%s", prog);
- if ((p = strrchr(dir, '/')) != NULL) {
- *p++ = '\0';
- } else {
- dir[0] = '.', dir[1] = '\0';
- p = (char *) prog;
- }
-
- pid = (pid_t) -1;
- fd_stdin[0] = fd_stdin[1] = fd_stdout[0] = fd_stdout[1] = -1;
- in = out = NULL;
-
- if (pipe(fd_stdin) != 0 || pipe(fd_stdout) != 0) {
- send_http_error(conn, 500, http_500_error,
- "Cannot create CGI pipe: %s", strerror(ERRNO));
- goto done;
- }
-
- pid = spawn_process(conn, p, blk.buf, blk.vars, fd_stdin[0], fd_stdout[1],
- dir);
- // spawn_process() must close those!
- // If we don't mark them as closed, close() attempt before
- // return from this function throws an exception on Windows.
- // Windows does not like when closed descriptor is closed again.
- fd_stdin[0] = fd_stdout[1] = -1;
-
- if (pid == (pid_t) -1) {
- send_http_error(conn, 500, http_500_error,
- "Cannot spawn CGI process [%s]: %s", prog, strerror(ERRNO));
- goto done;
- }
-
- if ((in = fdopen(fd_stdin[1], "wb")) == NULL ||
- (out = fdopen(fd_stdout[0], "rb")) == NULL) {
- send_http_error(conn, 500, http_500_error,
- "fopen: %s", strerror(ERRNO));
- goto done;
- }
-
- setbuf(in, NULL);
- setbuf(out, NULL);
- fout.fp = out;
-
- // Send POST data to the CGI process if needed
- if (!strcmp(conn->request_info.request_method, "POST") &&
- !forward_body_data(conn, in, INVALID_SOCKET, NULL)) {
- goto done;
- }
-
- // Close so child gets an EOF.
- fclose(in);
- in = NULL;
- fd_stdin[1] = -1;
-
- // Now read CGI reply into a buffer. We need to set correct
- // status code, thus we need to see all HTTP headers first.
- // Do not send anything back to client, until we buffer in all
- // HTTP headers.
- data_len = 0;
- headers_len = read_request(out, conn, buf, sizeof(buf), &data_len);
- if (headers_len <= 0) {
- send_http_error(conn, 500, http_500_error,
- "CGI program sent malformed or too big (>%u bytes) "
- "HTTP headers: [%.*s]",
- (unsigned) sizeof(buf), data_len, buf);
- goto done;
- }
- pbuf = buf;
- buf[headers_len - 1] = '\0';
- parse_http_headers(&pbuf, &ri);
-
- // Make up and send the status line
- status_text = "OK";
- if ((status = get_header(&ri, "Status")) != NULL) {
- conn->status_code = atoi(status);
- status_text = status;
- while (isdigit(* (unsigned char *) status_text) || *status_text == ' ') {
- status_text++;
- }
- } else if (get_header(&ri, "Location") != NULL) {
- conn->status_code = 302;
- } else {
- conn->status_code = 200;
- }
- if (get_header(&ri, "Connection") != NULL &&
- !mg_strcasecmp(get_header(&ri, "Connection"), "keep-alive")) {
- conn->must_close = 1;
- }
- (void) mg_printf(conn, "HTTP/1.1 %d %s\r\n", conn->status_code,
- status_text);
-
- // Send headers
- for (i = 0; i < ri.num_headers; i++) {
- mg_printf(conn, "%s: %s\r\n",
- ri.http_headers[i].name, ri.http_headers[i].value);
- }
- mg_write(conn, "\r\n", 2);
-
- // Send chunk of data that may have been read after the headers
- conn->num_bytes_sent += mg_write(conn, buf + headers_len,
- (size_t)(data_len - headers_len));
-
- // Read the rest of CGI output and send to the client
- send_file_data(conn, &fout, 0, INT64_MAX);
-
-done:
- if (pid != (pid_t) -1) {
- kill(pid, SIGKILL);
- }
- if (fd_stdin[0] != -1) {
- close(fd_stdin[0]);
- }
- if (fd_stdout[1] != -1) {
- close(fd_stdout[1]);
- }
-
- if (in != NULL) {
- fclose(in);
- } else if (fd_stdin[1] != -1) {
- close(fd_stdin[1]);
- }
-
- if (out != NULL) {
- fclose(out);
- } else if (fd_stdout[0] != -1) {
- close(fd_stdout[0]);
- }
-}
-#endif // !NO_CGI
-
-// For a given PUT path, create all intermediate subdirectories
-// for given path. Return 0 if the path itself is a directory,
-// or -1 on error, 1 if OK.
-static int put_dir(struct mg_connection *conn, const char *path) {
- char buf[PATH_MAX];
- const char *s, *p;
- struct file file = STRUCT_FILE_INITIALIZER;
- int len, res = 1;
-
- for (s = p = path + 2; (p = strchr(s, '/')) != NULL; s = ++p) {
- len = p - path;
- if (len >= (int) sizeof(buf)) {
- res = -1;
- break;
- }
- memcpy(buf, path, len);
- buf[len] = '\0';
-
- // Try to create intermediate directory
- DEBUG_TRACE(("mkdir(%s)", buf));
- if (!mg_stat(conn, buf, &file) && mg_mkdir(buf, 0755) != 0) {
- res = -1;
- break;
- }
-
- // Is path itself a directory?
- if (p[1] == '\0') {
- res = 0;
- }
- }
-
- return res;
-}
-
-static void mkcol(struct mg_connection *conn, const char *path) {
- int rc, body_len;
- struct de de;
- memset(&de.file, 0, sizeof(de.file));
- mg_stat(conn, path, &de.file);
-
- if(de.file.modification_time) {
- send_http_error(conn, 405, "Method Not Allowed",
- "mkcol(%s): %s", path, strerror(ERRNO));
- return;
- }
-
- body_len = conn->data_len - conn->request_len;
- if(body_len > 0) {
- send_http_error(conn, 415, "Unsupported media type",
- "mkcol(%s): %s", path, strerror(ERRNO));
- return;
- }
-
- rc = mg_mkdir(path, 0755);
-
- if (rc == 0) {
- conn->status_code = 201;
- mg_printf(conn, "HTTP/1.1 %d Created\r\n\r\n", conn->status_code);
- } else if (rc == -1) {
- if(errno == EEXIST)
- send_http_error(conn, 405, "Method Not Allowed",
- "mkcol(%s): %s", path, strerror(ERRNO));
- else if(errno == EACCES)
- send_http_error(conn, 403, "Forbidden",
- "mkcol(%s): %s", path, strerror(ERRNO));
- else if(errno == ENOENT)
- send_http_error(conn, 409, "Conflict",
- "mkcol(%s): %s", path, strerror(ERRNO));
- else
- send_http_error(conn, 500, http_500_error,
- "fopen(%s): %s", path, strerror(ERRNO));
- }
-}
-
-static void put_file(struct mg_connection *conn, const char *path) {
- struct file file = STRUCT_FILE_INITIALIZER;
- const char *range;
- int64_t r1, r2;
- int rc;
-
- conn->status_code = mg_stat(conn, path, &file) ? 200 : 201;
-
- if ((rc = put_dir(conn, path)) == 0) {
- mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n", conn->status_code);
- } else if (rc == -1) {
- send_http_error(conn, 500, http_500_error,
- "put_dir(%s): %s", path, strerror(ERRNO));
- } else if (!mg_fopen(conn, path, "wb+", &file) || file.fp == NULL) {
- mg_fclose(&file);
- send_http_error(conn, 500, http_500_error,
- "fopen(%s): %s", path, strerror(ERRNO));
- } else {
- fclose_on_exec(&file);
- range = mg_get_header(conn, "Content-Range");
- r1 = r2 = 0;
- if (range != NULL && parse_range_header(range, &r1, &r2) > 0) {
- conn->status_code = 206;
- fseeko(file.fp, r1, SEEK_SET);
- }
- if (forward_body_data(conn, file.fp, INVALID_SOCKET, NULL)) {
- mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n", conn->status_code);
- }
- mg_fclose(&file);
- }
-}
-
-static void send_ssi_file(struct mg_connection *, const char *,
- struct file *, int);
-
static void do_ssi_include(struct mg_connection *conn, const char *ssi,
- char *tag, int include_level) {
- char file_name[MG_BUF_LEN], path[PATH_MAX], *p;
- struct file file = STRUCT_FILE_INITIALIZER;
-
- // sscanf() is safe here, since send_ssi_file() also uses buffer
- // of size MG_BUF_LEN to get the tag. So strlen(tag) is always < MG_BUF_LEN.
- if (sscanf(tag, " virtual=\"%[^\"]\"", file_name) == 1) {
- // File name is relative to the webserver root
- (void) mg_snprintf(conn, path, sizeof(path), "%s%c%s",
- conn->ctx->config[DOCUMENT_ROOT], '/', file_name);
- } else if (sscanf(tag, " file=\"%[^\"]\"", file_name) == 1) {
- // File name is relative to the webserver working directory
- // or it is absolute system path
- (void) mg_snprintf(conn, path, sizeof(path), "%s", file_name);
- } else if (sscanf(tag, " \"%[^\"]\"", file_name) == 1) {
- // File name is relative to the currect document
- (void) mg_snprintf(conn, path, sizeof(path), "%s", ssi);
- if ((p = strrchr(path, '/')) != NULL) {
- p[1] = '\0';
- }
- (void) mg_snprintf(conn, path + strlen(path),
- sizeof(path) - strlen(path), "%s", file_name);
- } else {
- cry(conn, "Bad SSI #include: [%s]", tag);
- return;
- }
-
- if (!mg_fopen(conn, path, "rb", &file)) {
- cry(conn, "Cannot open SSI #include: [%s]: fopen(%s): %s",
- tag, path, strerror(ERRNO));
- } else {
- fclose_on_exec(&file);
- if (match_prefix(conn->ctx->config[SSI_EXTENSIONS],
- strlen(conn->ctx->config[SSI_EXTENSIONS]), path) > 0) {
- send_ssi_file(conn, path, &file, include_level + 1);
- } else {
- send_file_data(conn, &file, 0, INT64_MAX);
- }
- mg_fclose(&file);
- }
-}
-
-#if !defined(NO_POPEN)
+ char *tag, int include_level) {
+ char file_name[IOBUF_SIZE], path[MAX_PATH_SIZE], *p;
+ char **opts = (MG_CONN_2_CONN(conn))->server->config_options;
+ FILE *fp;
+
+ // sscanf() is safe here, since send_ssi_file() also uses buffer
+ // of size MG_BUF_LEN to get the tag. So strlen(tag) is always < MG_BUF_LEN.
+ if (sscanf(tag, " virtual=\"%[^\"]\"", file_name) == 1) {
+ // File name is relative to the webserver root
+ mg_snprintf(path, sizeof(path), "%s%c%s",
+ opts[DOCUMENT_ROOT], '/', file_name);
+ } else if (sscanf(tag, " abspath=\"%[^\"]\"", file_name) == 1) {
+ // File name is relative to the webserver working directory
+ // or it is absolute system path
+ mg_snprintf(path, sizeof(path), "%s", file_name);
+ } else if (sscanf(tag, " file=\"%[^\"]\"", file_name) == 1 ||
+ sscanf(tag, " \"%[^\"]\"", file_name) == 1) {
+ // File name is relative to the currect document
+ mg_snprintf(path, sizeof(path), "%s", ssi);
+ if ((p = strrchr(path, '/')) != NULL) {
+ p[1] = '\0';
+ }
+ mg_snprintf(path + strlen(path), sizeof(path) - strlen(path), "%s",
+ file_name);
+ } else {
+ mg_printf(conn, "Bad SSI #include: [%s]", tag);
+ return;
+ }
+
+ if ((fp = fopen(path, "rb")) == NULL) {
+ mg_printf(conn, "Cannot open SSI #include: [%s]: fopen(%s): %s",
+ tag, path, strerror(errno));
+ } else {
+ ns_set_close_on_exec(fileno(fp));
+ if (mg_match_prefix(opts[SSI_PATTERN], strlen(opts[SSI_PATTERN]),
+ path) > 0) {
+ send_ssi_file(conn, path, fp, include_level + 1);
+ } else {
+ send_file_data(conn, fp);
+ }
+ fclose(fp);
+ }
+}
+
+#ifndef MONGOOSE_NO_POPEN
static void do_ssi_exec(struct mg_connection *conn, char *tag) {
- char cmd[MG_BUF_LEN];
- struct file file = STRUCT_FILE_INITIALIZER;
-
- if (sscanf(tag, " \"%[^\"]\"", cmd) != 1) {
- cry(conn, "Bad SSI #exec: [%s]", tag);
- } else if ((file.fp = popen(cmd, "r")) == NULL) {
- cry(conn, "Cannot SSI #exec: [%s]: %s", cmd, strerror(ERRNO));
- } else {
- send_file_data(conn, &file, 0, INT64_MAX);
- pclose(file.fp);
- }
-}
-#endif // !NO_POPEN
+ char cmd[IOBUF_SIZE];
+ FILE *fp;
-static int mg_fgetc(struct file *filep, int offset) {
- if (filep->membuf != NULL && offset >=0 && offset < filep->size) {
- return ((unsigned char *) filep->membuf)[offset];
- } else if (filep->fp != NULL) {
- return fgetc(filep->fp);
- } else {
- return EOF;
- }
+ if (sscanf(tag, " \"%[^\"]\"", cmd) != 1) {
+ mg_printf(conn, "Bad SSI #exec: [%s]", tag);
+ } else if ((fp = popen(cmd, "r")) == NULL) {
+ mg_printf(conn, "Cannot SSI #exec: [%s]: %s", cmd, strerror(errno));
+ } else {
+ send_file_data(conn, fp);
+ pclose(fp);
+ }
}
+#endif // !MONGOOSE_NO_POPEN
static void send_ssi_file(struct mg_connection *conn, const char *path,
- struct file *filep, int include_level) {
- char buf[MG_BUF_LEN];
- int ch, offset, len, in_ssi_tag;
-
- if (include_level > 10) {
- cry(conn, "SSI #include level is too deep (%s)", path);
- return;
- }
-
- in_ssi_tag = len = offset = 0;
- while ((ch = mg_fgetc(filep, offset)) != EOF) {
- if (in_ssi_tag && ch == '>') {
- in_ssi_tag = 0;
- buf[len++] = (char) ch;
- buf[len] = '\0';
- assert(len <= (int) sizeof(buf));
- if (len < 6 || memcmp(buf, "<!--#", 5) != 0) {
- // Not an SSI tag, pass it
- (void) mg_write(conn, buf, (size_t) len);
- } else {
- if (!memcmp(buf + 5, "include", 7)) {
- do_ssi_include(conn, path, buf + 12, include_level);
-#if !defined(NO_POPEN)
- } else if (!memcmp(buf + 5, "exec", 4)) {
- do_ssi_exec(conn, buf + 9);
+ FILE *fp, int include_level) {
+ char buf[IOBUF_SIZE];
+ int ch, offset, len, in_ssi_tag;
+
+ if (include_level > 10) {
+ mg_printf(conn, "SSI #include level is too deep (%s)", path);
+ return;
+ }
+
+ in_ssi_tag = len = offset = 0;
+ while ((ch = fgetc(fp)) != EOF) {
+ if (in_ssi_tag && ch == '>') {
+ in_ssi_tag = 0;
+ buf[len++] = (char) ch;
+ buf[len] = '\0';
+ assert(len <= (int) sizeof(buf));
+ if (len < 6 || memcmp(buf, "<!--#", 5) != 0) {
+ // Not an SSI tag, pass it
+ (void) mg_write(conn, buf, (size_t) len);
+ } else {
+ if (!memcmp(buf + 5, "include", 7)) {
+ do_ssi_include(conn, path, buf + 12, include_level);
+#if !defined(MONGOOSE_NO_POPEN)
+ } else if (!memcmp(buf + 5, "exec", 4)) {
+ do_ssi_exec(conn, buf + 9);
#endif // !NO_POPEN
- } else {
- cry(conn, "%s: unknown SSI " "command: \"%s\"", path, buf);
- }
- }
- len = 0;
- } else if (in_ssi_tag) {
- if (len == 5 && memcmp(buf, "<!--#", 5) != 0) {
- // Not an SSI tag
- in_ssi_tag = 0;
- } else if (len == (int) sizeof(buf) - 2) {
- cry(conn, "%s: SSI tag is too large", path);
- len = 0;
- }
- buf[len++] = ch & 0xff;
- } else if (ch == '<') {
- in_ssi_tag = 1;
- if (len > 0) {
- mg_write(conn, buf, (size_t) len);
- }
- len = 0;
- buf[len++] = ch & 0xff;
- } else {
- buf[len++] = ch & 0xff;
- if (len == (int) sizeof(buf)) {
- mg_write(conn, buf, (size_t) len);
- len = 0;
- }
- }
- }
-
- // Send the rest of buffered data
- if (len > 0) {
- mg_write(conn, buf, (size_t) len);
- }
-}
-
-static void handle_ssi_file_request(struct mg_connection *conn,
- const char *path) {
- struct file file = STRUCT_FILE_INITIALIZER;
-
- if (!mg_fopen(conn, path, "rb", &file)) {
- send_http_error(conn, 500, http_500_error, "fopen(%s): %s", path,
- strerror(ERRNO));
- } else {
- conn->must_close = 1;
- fclose_on_exec(&file);
- mg_printf(conn, "HTTP/1.1 200 OK\r\n"
- "Content-Type: text/html\r\nConnection: %s\r\n\r\n",
- suggest_connection_header(conn));
- send_ssi_file(conn, path, &file, 0);
- mg_fclose(&file);
- }
-}
-
-static void send_options(struct mg_connection *conn) {
- conn->status_code = 200;
-
- mg_printf(conn, "%s", "HTTP/1.1 200 OK\r\n"
- "Allow: GET, POST, HEAD, CONNECT, PUT, DELETE, OPTIONS, PROPFIND, MKCOL\r\n"
- "DAV: 1\r\n\r\n");
-}
-
-// Writes PROPFIND properties for a collection element
-static void print_props(struct mg_connection *conn, const char* uri,
- struct file *filep) {
- char mtime[64];
- gmt_time_string(mtime, sizeof(mtime), &filep->modification_time);
- conn->num_bytes_sent += mg_printf(conn,
- "<d:response>"
- "<d:href>%s</d:href>"
- "<d:propstat>"
- "<d:prop>"
- "<d:resourcetype>%s</d:resourcetype>"
- "<d:getcontentlength>%" INT64_FMT "</d:getcontentlength>"
- "<d:getlastmodified>%s</d:getlastmodified>"
- "</d:prop>"
- "<d:status>HTTP/1.1 200 OK</d:status>"
- "</d:propstat>"
- "</d:response>\n",
- uri,
- filep->is_directory ? "<d:collection/>" : "",
- filep->size,
- mtime);
-}
-
-static void print_dav_dir_entry(struct de *de, void *data) {
- char href[PATH_MAX];
- char href_encoded[PATH_MAX];
- struct mg_connection *conn = (struct mg_connection *) data;
- mg_snprintf(conn, href, sizeof(href), "%s%s",
- conn->request_info.uri, de->file_name);
- mg_url_encode(href, href_encoded, PATH_MAX-1);
- print_props(conn, href_encoded, &de->file);
-}
-
-static void handle_propfind(struct mg_connection *conn, const char *path,
- struct file *filep) {
- const char *depth = mg_get_header(conn, "Depth");
-
- conn->must_close = 1;
- conn->status_code = 207;
- mg_printf(conn, "HTTP/1.1 207 Multi-Status\r\n"
- "Connection: close\r\n"
- "Content-Type: text/xml; charset=utf-8\r\n\r\n");
-
- conn->num_bytes_sent += mg_printf(conn,
- "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
- "<d:multistatus xmlns:d='DAV:'>\n");
-
- // Print properties for the requested resource itself
- print_props(conn, conn->request_info.uri, filep);
-
- // If it is a directory, print directory entries too if Depth is not 0
- if (filep->is_directory &&
- !mg_strcasecmp(conn->ctx->config[ENABLE_DIRECTORY_LISTING], "yes") &&
- (depth == NULL || strcmp(depth, "0") != 0)) {
- scan_directory(conn, path, conn, &print_dav_dir_entry);
- }
-
- conn->num_bytes_sent += mg_printf(conn, "%s\n", "</d:multistatus>");
-}
-
-#if defined(USE_WEBSOCKET)
-
-// START OF SHA-1 code
-// Copyright(c) By Steve Reid <steve@edmweb.com>
-#define SHA1HANDSOFF
-#if defined(__sun)
-#include "solarisfixes.h"
-#endif
-
-union char64long16 { unsigned char c[64]; uint32_t l[16]; };
-
-#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
-
-static uint32_t blk0(union char64long16 *block, int i) {
- // Forrest: SHA expect BIG_ENDIAN, swap if LITTLE_ENDIAN
- if (!is_big_endian()) {
- block->l[i] = (rol(block->l[i], 24) & 0xFF00FF00) |
- (rol(block->l[i], 8) & 0x00FF00FF);
- }
- return block->l[i];
+ } else {
+ mg_printf(conn, "%s: unknown SSI " "command: \"%s\"", path, buf);
+ }
+ }
+ len = 0;
+ } else if (in_ssi_tag) {
+ if (len == 5 && memcmp(buf, "<!--#", 5) != 0) {
+ // Not an SSI tag
+ in_ssi_tag = 0;
+ } else if (len == (int) sizeof(buf) - 2) {
+ mg_printf(conn, "%s: SSI tag is too large", path);
+ len = 0;
+ }
+ buf[len++] = ch & 0xff;
+ } else if (ch == '<') {
+ in_ssi_tag = 1;
+ if (len > 0) {
+ mg_write(conn, buf, (size_t) len);
+ }
+ len = 0;
+ buf[len++] = ch & 0xff;
+ } else {
+ buf[len++] = ch & 0xff;
+ if (len == (int) sizeof(buf)) {
+ mg_write(conn, buf, (size_t) len);
+ len = 0;
+ }
+ }
+ }
+
+ // Send the rest of buffered data
+ if (len > 0) {
+ mg_write(conn, buf, (size_t) len);
+ }
+}
+
+static void handle_ssi_request(struct connection *conn, const char *path) {
+ FILE *fp;
+ struct vec mime_vec;
+
+ if ((fp = fopen(path, "rb")) == NULL) {
+ send_http_error(conn, 500, "fopen(%s): %s", path, strerror(errno));
+ } else {
+ ns_set_close_on_exec(fileno(fp));
+ get_mime_type(conn->server, path, &mime_vec);
+ conn->mg_conn.status_code = 200;
+ mg_printf(&conn->mg_conn,
+ "HTTP/1.1 %d OK\r\n"
+ "Content-Type: %.*s\r\n"
+ "Connection: close\r\n\r\n",
+ conn->mg_conn.status_code, (int) mime_vec.len, mime_vec.ptr);
+ send_ssi_file(&conn->mg_conn, path, fp, 0);
+ fclose(fp);
+ close_local_endpoint(conn);
+ }
}
+#endif
-#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \
- ^block->l[(i+2)&15]^block->l[i&15],1))
-#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(block, i)+0x5A827999+rol(v,5);w=rol(w,30);
-#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30);
-#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);
-#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);
-#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30);
-
-typedef struct {
- uint32_t state[5];
- uint32_t count[2];
- unsigned char buffer[64];
-} SHA1_CTX;
-
-static void SHA1Transform(uint32_t state[5], const unsigned char buffer[64]) {
- uint32_t a, b, c, d, e;
- union char64long16 block[1];
-
- memcpy(block, buffer, 64);
- a = state[0];
- b = state[1];
- c = state[2];
- d = state[3];
- e = state[4];
- R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
- R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
- R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11);
- R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15);
- R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
- R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
- R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
- R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
- R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
- R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
- R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
- R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
- R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
- R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
- R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
- R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
- R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
- R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
- R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
- R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
- state[0] += a;
- state[1] += b;
- state[2] += c;
- state[3] += d;
- state[4] += e;
- a = b = c = d = e = 0;
- memset(block, '\0', sizeof(block));
-}
+static int parse_url(const char *url, char *proto, size_t plen,
+ char *host, size_t hlen, unsigned short *port) {
+ int n;
+ char fmt1[100], fmt2[100], fmt3[100];
+
+ *port = 80;
+ proto[0] = host[0] = '\0';
+
+ snprintf(fmt1, sizeof(fmt1), "%%%zu[a-z]://%%%zu[^: ]:%%hu%%n", plen, hlen);
+ snprintf(fmt2, sizeof(fmt2), "%%%zu[a-z]://%%%zu[^/ ]%%n", plen, hlen);
+ snprintf(fmt3, sizeof(fmt3), "%%%zu[^: ]:%%hu%%n", hlen);
+
+ if (sscanf(url, fmt1, proto, host, port, &n) == 3 ||
+ sscanf(url, fmt2, proto, host, &n) == 2) {
+ return n;
+ } else if (sscanf(url, fmt3, host, port, &n) == 2) {
+ proto[0] = '\0';
+ return n;
+ }
+
+ return 0;
+}
+
+static void proxy_request(struct ns_connection *pc, struct mg_connection *c) {
+ int i, sent_close_header = 0;
+
+ ns_printf(pc, "%s %s HTTP/%s\r\n", c->request_method, c->uri,
+ c->http_version);
+ for (i = 0; i < c->num_headers; i++) {
+ if (mg_strcasecmp(c->http_headers[i].name, "Connection") == 0) {
+ // Force connection close, cause we don't parse proxy replies
+ // therefore we don't know message boundaries
+ //ns_printf(pc, "%s: %s\r\n", "Connection", "close");
+ sent_close_header = 1;
+ //} else {
+ }
+ ns_printf(pc, "%s: %s\r\n", c->http_headers[i].name,
+ c->http_headers[i].value);
+ }
+ if (!sent_close_header) {
+ ns_printf(pc, "%s: %s\r\n", "Connection", "close");
+ }
+ ns_printf(pc, "%s", "\r\n");
+ ns_send(pc, c->content, c->content_len);
+
+}
+
+static void proxify_connection(struct connection *conn) {
+ char proto[10], host[500], cert[500];
+ unsigned short port = 80;
+ struct mg_connection *c = &conn->mg_conn;
+ struct ns_server *server = &conn->server->ns_server;
+ struct ns_connection *pc;
+ int n, use_ssl;
+
+ proto[0] = host[0] = cert[0] = '\0';
+ n = parse_url(c->uri, proto, sizeof(proto), host, sizeof(host), &port);
+
+#ifdef NS_ENABLE_SSL
+ // Find out whether we should be in the MITM mode
+ {
+ const char *certs = conn->server->config_options[SSL_MITM_CERTS];
+ int host_len = strlen(host);
+ struct vec a, b;
+
+ while ((certs = next_option(certs, &a, &b)) != NULL) {
+ if (a.len == host_len && mg_strncasecmp(a.ptr, host, a.len) == 0) {
+ snprintf(cert, sizeof(cert), "%.*s", b.len, b.ptr);
+ break;
+ }
+ }
+ }
+#endif
-static void SHA1Init(SHA1_CTX* context) {
- context->state[0] = 0x67452301;
- context->state[1] = 0xEFCDAB89;
- context->state[2] = 0x98BADCFE;
- context->state[3] = 0x10325476;
- context->state[4] = 0xC3D2E1F0;
- context->count[0] = context->count[1] = 0;
-}
+ use_ssl = port != 80 && cert[0] != '\0';
+
+ if (n > 0 &&
+ (pc = ns_connect(server, host, port, use_ssl, conn)) != NULL) {
+ // Interlink two connections
+ pc->flags |= MG_PROXY_CONN;
+ conn->endpoint_type = EP_PROXY;
+ conn->endpoint.nc = pc;
+ DBG(("%p [%s] -> %p %d", conn, c->uri, pc, use_ssl));
+
+ if (strcmp(c->request_method, "CONNECT") == 0) {
+ // For CONNECT request, reply with 200 OK. Tunnel is established.
+ mg_printf(c, "%s", "HTTP/1.1 200 OK\r\n\r\n");
+ conn->request_len = 0;
+ free(conn->request);
+ conn->request = NULL;
+#ifdef NS_ENABLE_SSL
+ if (use_ssl) {
+ SSL_CTX *ctx;
+
+ DBG(("%s", "Triggering MITM mode: terminating SSL connection"));
+ SSL_library_init();
+ ctx = SSL_CTX_new(SSLv23_server_method());
+
+ if (ctx == NULL) {
+ pc->flags |= NSF_CLOSE_IMMEDIATELY;
+ } else {
+ SSL_CTX_use_certificate_file(ctx, cert, 1);
+ SSL_CTX_use_PrivateKey_file(ctx, cert, 1);
+ SSL_CTX_use_certificate_chain_file(ctx, cert);
+
+ // When clear-text reply is pushed to client, switch to SSL mode.
+ n = send(conn->ns_conn->sock, conn->ns_conn->send_iobuf.buf,
+ conn->ns_conn->send_iobuf.len, 0);
+ DBG(("%p %lu %d SEND", c, conn->ns_conn->send_iobuf.len, n));
+ conn->ns_conn->send_iobuf.len = 0;
+ if ((conn->ns_conn->ssl = SSL_new(ctx)) != NULL) {
+ //SSL_set_fd((SSL *) c->connection_param, conn->ns_conn->sock);
+ SSL_set_fd(conn->ns_conn->ssl, conn->ns_conn->sock);
+ }
+ SSL_CTX_free(ctx);
+ }
+ }
+#endif
+ } else {
+ // For other methods, forward the request to the target host.
+ c->uri += n;
+ proxy_request(pc, c);
+ }
+ } else {
+ conn->ns_conn->flags |= NSF_CLOSE_IMMEDIATELY;
+ }
+}
+
+static void open_local_endpoint(struct connection *conn, int skip_user) {
+#ifndef MONGOOSE_NO_FILESYSTEM
+ file_stat_t st;
+ char path[MAX_PATH_SIZE];
+ int exists = 0, is_directory = 0;
+#ifndef MONGOOSE_NO_CGI
+ const char *cgi_pat = conn->server->config_options[CGI_PATTERN];
+#else
+ const char *cgi_pat = DEFAULT_CGI_PATTERN;
+#endif
+#ifndef MONGOOSE_NO_DIRECTORY_LISTING
+ const char *dir_lst = conn->server->config_options[ENABLE_DIRECTORY_LISTING];
+#else
+ const char *dir_lst = "yes";
+#endif
+#endif
-static void SHA1Update(SHA1_CTX* context, const unsigned char* data,
- uint32_t len) {
- uint32_t i, j;
-
- j = context->count[0];
- if ((context->count[0] += len << 3) < j)
- context->count[1]++;
- context->count[1] += (len>>29);
- j = (j >> 3) & 63;
- if ((j + len) > 63) {
- memcpy(&context->buffer[j], data, (i = 64-j));
- SHA1Transform(context->state, context->buffer);
- for ( ; i + 63 < len; i += 64) {
- SHA1Transform(context->state, &data[i]);
- }
- j = 0;
- }
- else i = 0;
- memcpy(&context->buffer[j], &data[i], len - i);
-}
+ // If EP_USER was set in a prev call, reset it
+ conn->endpoint_type = EP_NONE;
-static void SHA1Final(unsigned char digest[20], SHA1_CTX* context) {
- unsigned i;
- unsigned char finalcount[8], c;
-
- for (i = 0; i < 8; i++) {
- finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)]
- >> ((3-(i & 3)) * 8) ) & 255);
- }
- c = 0200;
- SHA1Update(context, &c, 1);
- while ((context->count[0] & 504) != 448) {
- c = 0000;
- SHA1Update(context, &c, 1);
- }
- SHA1Update(context, finalcount, 8);
- for (i = 0; i < 20; i++) {
- digest[i] = (unsigned char)
- ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
- }
- memset(context, '\0', sizeof(*context));
- memset(&finalcount, '\0', sizeof(finalcount));
-}
-// END OF SHA1 CODE
+#ifndef MONGOOSE_NO_AUTH
+ if (conn->server->event_handler && call_user(conn, MG_AUTH) == MG_FALSE) {
+ mg_send_digest_auth_request(&conn->mg_conn);
+ return;
+ }
+#endif
-static void base64_encode(const unsigned char *src, int src_len, char *dst) {
- static const char *b64 =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
- int i, j, a, b, c;
-
- for (i = j = 0; i < src_len; i += 3) {
- a = src[i];
- b = i + 1 >= src_len ? 0 : src[i + 1];
- c = i + 2 >= src_len ? 0 : src[i + 2];
-
- dst[j++] = b64[a >> 2];
- dst[j++] = b64[((a & 3) << 4) | (b >> 4)];
- if (i + 1 < src_len) {
- dst[j++] = b64[(b & 15) << 2 | (c >> 6)];
- }
- if (i + 2 < src_len) {
- dst[j++] = b64[c & 63];
- }
- }
- while (j % 4 != 0) {
- dst[j++] = '=';
- }
- dst[j++] = '\0';
-}
-
-static void send_websocket_handshake(struct mg_connection *conn) {
- static const char *magic = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
- char buf[100], sha[20], b64_sha[sizeof(sha) * 2];
- SHA1_CTX sha_ctx;
-
- mg_snprintf(conn, buf, sizeof(buf), "%s%s",
- mg_get_header(conn, "Sec-WebSocket-Key"), magic);
- SHA1Init(&sha_ctx);
- SHA1Update(&sha_ctx, (unsigned char *) buf, strlen(buf));
- SHA1Final((unsigned char *) sha, &sha_ctx);
- base64_encode((unsigned char *) sha, sizeof(sha), b64_sha);
- mg_printf(conn, "%s%s%s",
- "HTTP/1.1 101 Switching Protocols\r\n"
- "Upgrade: websocket\r\n"
- "Connection: Upgrade\r\n"
- "Sec-WebSocket-Accept: ", b64_sha, "\r\n\r\n");
-}
-
-static void read_websocket(struct mg_connection *conn) {
- // Pointer to the beginning of the portion of the incoming websocket message
- // queue. The original websocket upgrade request is never removed,
- // so the queue begins after it.
- unsigned char *buf = (unsigned char *) conn->buf + conn->request_len;
- int bits, n, stop = 0;
- size_t i, len, mask_len = 0, data_len = 0, header_len, body_len;
- // data points to the place where the message is stored when passed to the
- // websocket_data callback. This is either mem on the stack,
- // or a dynamically allocated buffer if it is too large.
- char mem[4 * 1024], mask[4], *data;
-
- assert(conn->content_len == 0);
-
- // Loop continuously, reading messages from the socket, invoking the callback,
- // and waiting repeatedly until an error occurs.
- while (!stop) {
- header_len = 0;
- // body_len is the length of the entire queue in bytes
- // len is the length of the current message
- // data_len is the length of the current message's data payload
- // header_len is the length of the current message's header
- if ((body_len = conn->data_len - conn->request_len) >= 2) {
- len = buf[1] & 127;
- mask_len = buf[1] & 128 ? 4 : 0;
- if (len < 126 && body_len >= mask_len) {
- data_len = len;
- header_len = 2 + mask_len;
- } else if (len == 126 && body_len >= 4 + mask_len) {
- header_len = 4 + mask_len;
- data_len = ((((int) buf[2]) << 8) + buf[3]);
- } else if (body_len >= 10 + mask_len) {
- header_len = 10 + mask_len;
- data_len = (((uint64_t) htonl(* (uint32_t *) &buf[2])) << 32) +
- htonl(* (uint32_t *) &buf[6]);
- }
- }
-
- // Data layout is as follows:
- // conn->buf buf
- // v v frame1 | frame2
- // |---------------------|----------------|--------------|-------
- // | |<--header_len-->|<--data_len-->|
- // |<-conn->request_len->|<-----body_len----------->|
- // |<-------------------conn->data_len------------->|
-
- if (header_len > 0) {
- // Allocate space to hold websocket payload
- data = mem;
- if (data_len > sizeof(mem) && (data = (char*)malloc(data_len)) == NULL) {
- // Allocation failed, exit the loop and then close the connection
- // TODO: notify user about the failure
- break;
- }
-
- // Save mask and bits, otherwise it may be clobbered by memmove below
- bits = buf[0];
- memcpy(mask, buf + header_len - mask_len, mask_len);
-
- // Read frame payload into the allocated buffer.
- assert(body_len >= header_len);
- if (data_len + header_len > body_len) {
- len = body_len - header_len;
- memcpy(data, buf + header_len, len);
- // TODO: handle pull error
- pull_all(NULL, conn, data + len, data_len - len);
- conn->data_len = conn->request_len;
- } else {
- len = data_len + header_len;
- memcpy(data, buf + header_len, data_len);
- memmove(buf, buf + len, body_len - len);
- conn->data_len -= len;
- }
-
- // Apply mask if necessary
- if (mask_len > 0) {
- for (i = 0; i < data_len; i++) {
- data[i] ^= mask[i % 4];
- }
- }
-
- // Exit the loop if callback signalled to exit,
- // or "connection close" opcode received.
- if ((conn->ctx->callbacks.websocket_data != NULL &&
- !conn->ctx->callbacks.websocket_data(conn, bits, data, data_len)) ||
- (bits & 0xf) == 8) { // Opcode == 8, connection close
- stop = 1;
- }
-
- if (data != mem) {
- free(data);
- }
- // Not breaking the loop, process next websocket frame.
- } else {
- // Buffering websocket request
- if ((n = pull(NULL, conn, conn->buf + conn->data_len,
- conn->buf_size - conn->data_len)) <= 0) {
- break;
- }
- conn->data_len += n;
- }
- }
+ // Call URI handler if one is registered for this URI
+ if (skip_user == 0 && conn->server->event_handler != NULL) {
+ conn->endpoint_type = EP_USER;
+#if MONGOOSE_POST_SIZE_LIMIT > 1
+ {
+ const char *cl = mg_get_header(&conn->mg_conn, "Content-Length");
+ if ((strcmp(conn->mg_conn.request_method, "POST") == 0 ||
+ strcmp(conn->mg_conn.request_method, "PUT") == 0) &&
+ (cl == NULL || to64(cl) > MONGOOSE_POST_SIZE_LIMIT)) {
+ send_http_error(conn, 500, "POST size > %zu",
+ (size_t) MONGOOSE_POST_SIZE_LIMIT);
+ }
+ }
+#endif
+ return;
+ }
+
+ if (strcmp(conn->mg_conn.request_method, "CONNECT") == 0 ||
+ memcmp(conn->mg_conn.uri, "http", 4) == 0) {
+ proxify_connection(conn);
+ return;
+ }
+
+#ifdef MONGOOSE_NO_FILESYSTEM
+ if (!strcmp(conn->mg_conn.request_method, "OPTIONS")) {
+ send_options(conn);
+ } else {
+ send_http_error(conn, 404, NULL);
+ }
+#else
+ exists = convert_uri_to_file_name(conn, path, sizeof(path), &st);
+ is_directory = S_ISDIR(st.st_mode);
+
+ if (!strcmp(conn->mg_conn.request_method, "OPTIONS")) {
+ send_options(conn);
+ } else if (conn->server->config_options[DOCUMENT_ROOT] == NULL) {
+ send_http_error(conn, 404, NULL);
+#ifndef MONGOOSE_NO_AUTH
+ } else if ((!is_dav_request(conn) && !is_authorized(conn, path)) ||
+ (is_dav_request(conn) && !is_authorized_for_dav(conn))) {
+ mg_send_digest_auth_request(&conn->mg_conn);
+ close_local_endpoint(conn);
+#endif
+#ifndef MONGOOSE_NO_DAV
+ } else if (!strcmp(conn->mg_conn.request_method, "PROPFIND")) {
+ handle_propfind(conn, path, &st, exists);
+ } else if (!strcmp(conn->mg_conn.request_method, "MKCOL")) {
+ handle_mkcol(conn, path);
+ } else if (!strcmp(conn->mg_conn.request_method, "DELETE")) {
+ handle_delete(conn, path);
+ } else if (!strcmp(conn->mg_conn.request_method, "PUT")) {
+ handle_put(conn, path);
+#endif
+ } else if (!exists || must_hide_file(conn, path)) {
+ send_http_error(conn, 404, NULL);
+ } else if (is_directory &&
+ conn->mg_conn.uri[strlen(conn->mg_conn.uri) - 1] != '/') {
+ conn->mg_conn.status_code = 301;
+ mg_printf(&conn->mg_conn, "HTTP/1.1 301 Moved Permanently\r\n"
+ "Location: %s/\r\n\r\n", conn->mg_conn.uri);
+ close_local_endpoint(conn);
+ } else if (is_directory && !find_index_file(conn, path, sizeof(path), &st)) {
+ if (!mg_strcasecmp(dir_lst, "yes")) {
+#ifndef MONGOOSE_NO_DIRECTORY_LISTING
+ send_directory_listing(conn, path);
+#else
+ send_http_error(conn, 501, NULL);
+#endif
+ } else {
+ send_http_error(conn, 403, NULL);
+ }
+ } else if (mg_match_prefix(cgi_pat, strlen(cgi_pat), path) > 0) {
+#if !defined(MONGOOSE_NO_CGI)
+ open_cgi_endpoint(conn, path);
+#else
+ send_http_error(conn, 501, NULL);
+#endif // !MONGOOSE_NO_CGI
+#ifndef MONGOOSE_NO_SSI
+ } else if (mg_match_prefix(conn->server->config_options[SSI_PATTERN],
+ strlen(conn->server->config_options[SSI_PATTERN]),
+ path) > 0) {
+ handle_ssi_request(conn, path);
+#endif
+ } else if (is_not_modified(conn, &st)) {
+ send_http_error(conn, 304, NULL);
+ } else if ((conn->endpoint.fd = open(path, O_RDONLY | O_BINARY)) != -1) {
+ // O_BINARY is required for Windows, otherwise in default text mode
+ // two bytes \r\n will be read as one.
+ open_file_endpoint(conn, path, &st);
+ } else {
+ send_http_error(conn, 404, NULL);
+ }
+#endif // MONGOOSE_NO_FILESYSTEM
}
-int mg_websocket_write(struct mg_connection* conn, int opcode,
- const char *data, size_t data_len) {
- unsigned char *copy;
- size_t copy_len = 0;
- int retval = -1;
-
- if ((copy = (unsigned char *) malloc(data_len + 10)) == NULL) {
- return -1;
- }
-
- copy[0] = 0x80 + (opcode & 0x0f);
-
- // Frame format: http://tools.ietf.org/html/rfc6455#section-5.2
- if (data_len < 126) {
- // Inline 7-bit length field
- copy[1] = data_len;
- memcpy(copy + 2, data, data_len);
- copy_len = 2 + data_len;
- } else if (data_len <= 0xFFFF) {
- // 16-bit length field
- copy[1] = 126;
- * (uint16_t *) (copy + 2) = htons(data_len);
- memcpy(copy + 4, data, data_len);
- copy_len = 4 + data_len;
- } else {
- // 64-bit length field
- copy[1] = 127;
- * (uint32_t *) (copy + 2) = htonl((uint64_t) data_len >> 32);
- * (uint32_t *) (copy + 6) = htonl(data_len & 0xffffffff);
- memcpy(copy + 10, data, data_len);
- copy_len = 10 + data_len;
- }
-
- // Not thread safe
- if (copy_len > 0) {
- retval = mg_write(conn, copy, copy_len);
- }
- free(copy);
-
- return retval;
-}
-
-static void handle_websocket_request(struct mg_connection *conn) {
- const char *version = mg_get_header(conn, "Sec-WebSocket-Version");
- if (version == NULL || strcmp(version, "13") != 0) {
- send_http_error(conn, 426, "Upgrade Required", "%s", "Upgrade Required");
- } else if (conn->ctx->callbacks.websocket_connect != NULL &&
- conn->ctx->callbacks.websocket_connect(conn) != 0) {
- // Callback has returned non-zero, do not proceed with handshake
- } else {
- send_websocket_handshake(conn);
- if (conn->ctx->callbacks.websocket_ready != NULL) {
- conn->ctx->callbacks.websocket_ready(conn);
- }
- read_websocket(conn);
- }
-}
-
-static int is_websocket_request(const struct mg_connection *conn) {
- const char *host, *upgrade, *connection, *version, *key;
-
- host = mg_get_header(conn, "Host");
- upgrade = mg_get_header(conn, "Upgrade");
- connection = mg_get_header(conn, "Connection");
- key = mg_get_header(conn, "Sec-WebSocket-Key");
- version = mg_get_header(conn, "Sec-WebSocket-Version");
-
- return host != NULL && upgrade != NULL && connection != NULL &&
- key != NULL && version != NULL &&
- mg_strcasestr(upgrade, "websocket") != NULL &&
- mg_strcasestr(connection, "Upgrade") != NULL;
-}
-#endif // !USE_WEBSOCKET
+static void send_continue_if_expected(struct connection *conn) {
+ static const char expect_response[] = "HTTP/1.1 100 Continue\r\n\r\n";
+ const char *expect_hdr = mg_get_header(&conn->mg_conn, "Expect");
-static int isbyte(int n) {
- return n >= 0 && n <= 255;
+ if (expect_hdr != NULL && !mg_strcasecmp(expect_hdr, "100-continue")) {
+ ns_send(conn->ns_conn, expect_response, sizeof(expect_response) - 1);
+ }
}
-static int parse_net(const char *spec, uint32_t *net, uint32_t *mask) {
- int n, a, b, c, d, slash = 32, len = 0;
-
- if ((sscanf(spec, "%d.%d.%d.%d/%d%n", &a, &b, &c, &d, &slash, &n) == 5 ||
- sscanf(spec, "%d.%d.%d.%d%n", &a, &b, &c, &d, &n) == 4) &&
- isbyte(a) && isbyte(b) && isbyte(c) && isbyte(d) &&
- slash >= 0 && slash < 33) {
- len = n;
- *net = ((uint32_t)a << 24) | ((uint32_t)b << 16) | ((uint32_t)c << 8) | d;
- *mask = slash ? 0xffffffffU << (32 - slash) : 0;
- }
-
- return len;
-}
-
-static int set_throttle(const char *spec, uint32_t remote_ip, const char *uri) {
- int throttle = 0;
- struct vec vec, val;
- uint32_t net, mask;
- char mult;
- double v;
-
- while ((spec = next_option(spec, &vec, &val)) != NULL) {
- mult = ',';
- if (sscanf(val.ptr, "%lf%c", &v, &mult) < 1 || v < 0 ||
- (lowercase(&mult) != 'k' && lowercase(&mult) != 'm' && mult != ',')) {
- continue;
- }
- v *= lowercase(&mult) == 'k' ? 1024 : lowercase(&mult) == 'm' ? 1048576 : 1;
- if (vec.len == 1 && vec.ptr[0] == '*') {
- throttle = (int) v;
- } else if (parse_net(vec.ptr, &net, &mask) > 0) {
- if ((remote_ip & mask) == net) {
- throttle = (int) v;
- }
- } else if (match_prefix(vec.ptr, vec.len, uri) > 0) {
- throttle = (int) v;
- }
- }
-
- return throttle;
-}
-
-static uint32_t get_remote_ip(const struct mg_connection *conn) {
- return ntohl(* (uint32_t *) &conn->client.rsa.sin.sin_addr);
-}
-
-#ifdef USE_LUA
-#include "mod_lua.c"
-#endif // USE_LUA
-
-int mg_upload(struct mg_connection *conn, const char *destination_dir) {
- const char *content_type_header, *boundary_start;
- char buf[MG_BUF_LEN], path[PATH_MAX], fname[1024], boundary[100], *s;
- FILE *fp;
- int bl, n, i, j, headers_len, boundary_len, eof,
- len = 0, num_uploaded_files = 0;
-
- // Request looks like this:
- //
- // POST /upload HTTP/1.1
- // Host: 127.0.0.1:8080
- // Content-Length: 244894
- // Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryRVr
- //
- // ------WebKitFormBoundaryRVr
- // Content-Disposition: form-data; name="file"; filename="accum.png"
- // Content-Type: image/png
- //
- // <89>PNG
- // <PNG DATA>
- // ------WebKitFormBoundaryRVr
-
- // Extract boundary string from the Content-Type header
- if ((content_type_header = mg_get_header(conn, "Content-Type")) == NULL ||
- (boundary_start = mg_strcasestr(content_type_header,
- "boundary=")) == NULL ||
- (sscanf(boundary_start, "boundary=\"%99[^\"]\"", boundary) == 0 &&
- sscanf(boundary_start, "boundary=%99s", boundary) == 0) ||
- boundary[0] == '\0') {
- return num_uploaded_files;
- }
-
- boundary_len = strlen(boundary);
- bl = boundary_len + 4; // \r\n--<boundary>
- for (;;) {
- // Pull in headers
- assert(len >= 0 && len <= (int) sizeof(buf));
- while ((n = mg_read(conn, buf + len, sizeof(buf) - len)) > 0) {
- len += n;
- }
- if ((headers_len = get_request_len(buf, len)) <= 0) {
- break;
- }
-
- // Fetch file name.
- fname[0] = '\0';
- for (i = j = 0; i < headers_len; i++) {
- if (buf[i] == '\r' && buf[i + 1] == '\n') {
- buf[i] = buf[i + 1] = '\0';
- // TODO(lsm): don't expect filename to be the 3rd field,
- // parse the header properly instead.
- sscanf(&buf[j], "Content-Disposition: %*s %*s filename=\"%1023[^\"]",
- fname);
- j = i + 2;
- }
- }
-
- // Give up if the headers are not what we expect
- if (fname[0] == '\0') {
- break;
- }
-
- // Move data to the beginning of the buffer
- assert(len >= headers_len);
- memmove(buf, &buf[headers_len], len - headers_len);
- len -= headers_len;
-
- // We open the file with exclusive lock held. This guarantee us
- // there is no other thread can save into the same file simultaneously.
- fp = NULL;
- // Construct destination file name. Do not allow paths to have slashes.
- if ((s = strrchr(fname, '/')) == NULL &&
- (s = strrchr(fname, '\\')) == NULL) {
- s = fname;
- }
-
- // Open file in binary mode. TODO: set an exclusive lock.
- snprintf(path, sizeof(path), "%s/%s", destination_dir, s);
- if ((fp = fopen(path, "wb")) == NULL) {
- break;
- }
-
- // Read POST data, write into file until boundary is found.
- eof = n = 0;
- do {
- len += n;
- for (i = 0; i < len - bl; i++) {
- if (!memcmp(&buf[i], "\r\n--", 4) &&
- !memcmp(&buf[i + 4], boundary, boundary_len)) {
- // Found boundary, that's the end of file data.
- fwrite(buf, 1, i, fp);
- eof = 1;
- memmove(buf, &buf[i + bl], len - (i + bl));
- len -= i + bl;
- break;
- }
- }
- if (!eof && len > bl) {
- fwrite(buf, 1, len - bl, fp);
- memmove(buf, &buf[len - bl], bl);
- len = bl;
- }
- } while (!eof && (n = mg_read(conn, buf + len, sizeof(buf) - len)) > 0);
- fclose(fp);
- if (eof) {
- num_uploaded_files++;
- if (conn->ctx->callbacks.upload != NULL) {
- conn->ctx->callbacks.upload(conn, path);
- }
- }
- }
-
- return num_uploaded_files;
-}
-
-static int is_put_or_delete_request(const struct mg_connection *conn) {
- const char *s = conn->request_info.request_method;
- return s != NULL && (!strcmp(s, "PUT") || !strcmp(s, "DELETE") || !strcmp(s, "MKCOL"));
-}
-
-static int get_first_ssl_listener_index(const struct mg_context *ctx) {
- int i, index = -1;
- for (i = 0; index == -1 && i < ctx->num_listening_sockets; i++) {
- index = ctx->listening_sockets[i].is_ssl ? i : -1;
- }
- return index;
-}
-
-static void redirect_to_https_port(struct mg_connection *conn, int ssl_index) {
- char host[1025];
- const char *host_header;
-
- if ((host_header = mg_get_header(conn, "Host")) == NULL ||
- sscanf(host_header, "%1024[^:]", host) == 0) {
- // Cannot get host from the Host: header. Fallback to our IP address.
- sockaddr_to_string(host, sizeof(host), &conn->client.lsa);
- }
-
- mg_printf(conn, "HTTP/1.1 302 Found\r\nLocation: https://%s:%d%s\r\n\r\n",
- host, (int) ntohs(conn->ctx->listening_sockets[ssl_index].
- lsa.sin.sin_port), conn->request_info.uri);
-}
-
-// This is the heart of the Mongoose's logic.
-// This function is called when the request is read, parsed and validated,
-// and Mongoose must decide what action to take: serve a file, or
-// a directory, or call embedded function, etcetera.
-static void handle_request(struct mg_connection *conn) {
- struct mg_request_info *ri = &conn->request_info;
- char path[PATH_MAX];
- int uri_len, ssl_index;
- struct file file = STRUCT_FILE_INITIALIZER;
-
- if ((conn->request_info.query_string = strchr(ri->uri, '?')) != NULL) {
- * ((char *) conn->request_info.query_string++) = '\0';
- }
- uri_len = (int) strlen(ri->uri);
- mg_url_decode(ri->uri, uri_len, (char *) ri->uri, uri_len + 1, 0);
- remove_double_dots_and_double_slashes((char *) ri->uri);
- convert_uri_to_file_name(conn, path, sizeof(path), &file);
- conn->throttle = set_throttle(conn->ctx->config[THROTTLE],
- get_remote_ip(conn), ri->uri);
-
- DEBUG_TRACE(("%s", ri->uri));
- // Perform redirect and auth checks before calling begin_request() handler.
- // Otherwise, begin_request() would need to perform auth checks and redirects.
- if (!conn->client.is_ssl && conn->client.ssl_redir &&
- (ssl_index = get_first_ssl_listener_index(conn->ctx)) > -1) {
- redirect_to_https_port(conn, ssl_index);
- } else if (!is_put_or_delete_request(conn) &&
- !check_authorization(conn, path)) {
- send_authorization_request(conn);
- } else if (conn->ctx->callbacks.begin_request != NULL &&
- conn->ctx->callbacks.begin_request(conn)) {
- // Do nothing, callback has served the request
-#if defined(USE_WEBSOCKET)
- } else if (is_websocket_request(conn)) {
- handle_websocket_request(conn);
+// Conform to http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html#sec5.1.2
+static int is_valid_uri(const char *uri) {
+ unsigned short n;
+ return uri[0] == '/' ||
+ strcmp(uri, "*") == 0 || // OPTIONS method can use asterisk URI
+ memcmp(uri, "http", 4) == 0 || // Naive check for the absolute URI
+ sscanf(uri, "%*[^ :]:%hu", &n) > 0; // CONNECT method can use host:port
+}
+
+static void try_parse(struct connection *conn) {
+ struct iobuf *io = &conn->ns_conn->recv_iobuf;
+
+ if (conn->request_len == 0 &&
+ (conn->request_len = get_request_len(io->buf, io->len)) > 0) {
+ // If request is buffered in, remove it from the iobuf. This is because
+ // iobuf could be reallocated, and pointers in parsed request could
+ // become invalid.
+ conn->request = (char *) malloc(conn->request_len);
+ memcpy(conn->request, io->buf, conn->request_len);
+ //DBG(("%p [%.*s]", conn, conn->request_len, conn->request));
+ iobuf_remove(io, conn->request_len);
+ conn->request_len = parse_http_message(conn->request, conn->request_len,
+ &conn->mg_conn);
+ if (conn->request_len > 0) {
+ const char *cl_hdr = mg_get_header(&conn->mg_conn, "Content-Length");
+ conn->cl = cl_hdr == NULL ? 0 : to64(cl_hdr);
+ conn->mg_conn.content_len = (size_t) conn->cl;
+ }
+ }
+}
+
+static void do_proxy(struct connection *conn) {
+ if (conn->request_len == 0) {
+ DBG(("%p parsing", conn));
+ try_parse(conn);
+ if (conn->request_len > 0 &&
+ call_user(conn, MG_REQUEST) == MG_FALSE) {
+ proxy_request(conn->endpoint.nc, &conn->mg_conn);
+ } else if (conn->request_len < 0) {
+ ns_forward(conn->ns_conn, conn->endpoint.nc);
+ }
+ } else {
+ DBG(("%p forwarding", conn));
+ ns_forward(conn->ns_conn, conn->endpoint.nc);
+ }
+}
+
+static void on_recv_data(struct connection *conn) {
+ struct iobuf *io = &conn->ns_conn->recv_iobuf;
+
+ if (conn->endpoint_type == EP_PROXY && conn->endpoint.nc != NULL) {
+ do_proxy(conn);
+ return;
+ }
+
+ try_parse(conn);
+ DBG(("%p %d %zu %d", conn, conn->request_len, io->len, conn->ns_conn->flags));
+ if (conn->request_len < 0 ||
+ (conn->request_len > 0 && !is_valid_uri(conn->mg_conn.uri))) {
+ send_http_error(conn, 400, NULL);
+ } else if (conn->request_len == 0 && io->len > MAX_REQUEST_SIZE) {
+ send_http_error(conn, 413, NULL);
+ } else if (conn->request_len > 0 &&
+ strcmp(conn->mg_conn.http_version, "1.0") != 0 &&
+ strcmp(conn->mg_conn.http_version, "1.1") != 0) {
+ send_http_error(conn, 505, NULL);
+ } else if (conn->request_len > 0 && conn->endpoint_type == EP_NONE) {
+#ifndef MONGOOSE_NO_WEBSOCKET
+ send_websocket_handshake_if_requested(&conn->mg_conn);
#endif
- } else if (!strcmp(ri->request_method, "OPTIONS")) {
- send_options(conn);
- } else if (conn->ctx->config[DOCUMENT_ROOT] == NULL) {
- send_http_error(conn, 404, "Not Found", "Not Found");
- } else if (is_put_or_delete_request(conn) &&
- (is_authorized_for_put(conn) != 1)) {
- send_authorization_request(conn);
- } else if (!strcmp(ri->request_method, "PUT")) {
- put_file(conn, path);
- } else if (!strcmp(ri->request_method, "MKCOL")) {
- mkcol(conn, path);
- } else if (!strcmp(ri->request_method, "DELETE")) {
- struct de de;
- memset(&de.file, 0, sizeof(de.file));
- if(!mg_stat(conn, path, &de.file)) {
- send_http_error(conn, 404, "Not Found", "%s", "File not found");
- } else {
- if(de.file.modification_time) {
- if(de.file.is_directory) {
- remove_directory(conn, path);
- send_http_error(conn, 204, "No Content", "%s", "");
- } else if (mg_remove(path) == 0) {
- send_http_error(conn, 204, "No Content", "%s", "");
- } else {
- send_http_error(conn, 423, "Locked", "remove(%s): %s", path,
- strerror(ERRNO));
- }
- }
- else {
- send_http_error(conn, 500, http_500_error, "remove(%s): %s", path,
- strerror(ERRNO));
- }
- }
- } else if ((file.membuf == NULL && file.modification_time == (time_t) 0) ||
- must_hide_file(conn, path)) {
- send_http_error(conn, 404, "Not Found", "%s", "File not found");
- } else if (file.is_directory && ri->uri[uri_len - 1] != '/') {
- mg_printf(conn, "HTTP/1.1 301 Moved Permanently\r\n"
- "Location: %s/\r\n\r\n", ri->uri);
- } else if (!strcmp(ri->request_method, "PROPFIND")) {
- handle_propfind(conn, path, &file);
- } else if (file.is_directory &&
- !substitute_index_file(conn, path, sizeof(path), &file)) {
- if (!mg_strcasecmp(conn->ctx->config[ENABLE_DIRECTORY_LISTING], "yes")) {
- handle_directory_request(conn, path);
- } else {
- send_http_error(conn, 403, "Directory Listing Denied",
- "Directory listing denied");
- }
-#ifdef USE_LUA
- } else if (match_prefix("**.lp$", 6, path) > 0) {
- handle_lsp_request(conn, path, &file, NULL);
+ send_continue_if_expected(conn);
+ open_local_endpoint(conn, 0);
+ }
+
+#ifndef MONGOOSE_NO_CGI
+ if (conn->endpoint_type == EP_CGI && conn->endpoint.nc != NULL) {
+ ns_forward(conn->ns_conn, conn->endpoint.nc);
+ }
#endif
-#if !defined(NO_CGI)
- } else if (match_prefix(conn->ctx->config[CGI_EXTENSIONS],
- strlen(conn->ctx->config[CGI_EXTENSIONS]),
- path) > 0) {
- if (strcmp(ri->request_method, "POST") &&
- strcmp(ri->request_method, "HEAD") &&
- strcmp(ri->request_method, "GET")) {
- send_http_error(conn, 501, "Not Implemented",
- "Method %s is not implemented", ri->request_method);
- } else {
- handle_cgi_request(conn, path);
- }
-#endif // !NO_CGI
- } else if (match_prefix(conn->ctx->config[SSI_EXTENSIONS],
- strlen(conn->ctx->config[SSI_EXTENSIONS]),
- path) > 0) {
- handle_ssi_file_request(conn, path);
- } else if (is_not_modified(conn, &file)) {
- send_http_error(conn, 304, "Not Modified", "%s", "");
- } else {
- handle_file_request(conn, path, &file);
- }
-}
-
-static void close_all_listening_sockets(struct mg_context *ctx) {
- int i;
- for (i = 0; i < ctx->num_listening_sockets; i++) {
- closesocket(ctx->listening_sockets[i].sock);
- }
- free(ctx->listening_sockets);
-}
-
-// Valid listening port specification is: [ip_address:]port[s]
-// Examples: 80, 443s, 127.0.0.1:3128, 1.2.3.4:8080s
-// TODO(lsm): add parsing of the IPv6 address
-static int parse_port_string(const struct vec *vec, struct socket *so) {
- int a, b, c, d, port, len;
-
- // MacOS needs that. If we do not zero it, subsequent bind() will fail.
- // Also, all-zeroes in the socket address means binding to all addresses
- // for both IPv4 and IPv6 (INADDR_ANY and IN6ADDR_ANY_INIT).
- memset(so, 0, sizeof(*so));
-
- if (sscanf(vec->ptr, "%d.%d.%d.%d:%d%n", &a, &b, &c, &d, &port, &len) == 5) {
- // Bind to a specific IPv4 address
- so->lsa.sin.sin_addr.s_addr = htonl((a << 24) | (b << 16) | (c << 8) | d);
- } else if (sscanf(vec->ptr, "%d%n", &port, &len) != 1 ||
- len <= 0 ||
- len > (int) vec->len ||
- port < 1 ||
- port > 65535 ||
- (vec->ptr[len] && vec->ptr[len] != 's' &&
- vec->ptr[len] != 'r' && vec->ptr[len] != ',')) {
- return 0;
- }
-
- so->is_ssl = vec->ptr[len] == 's';
- so->ssl_redir = vec->ptr[len] == 'r';
-#if defined(USE_IPV6)
- so->lsa.sin6.sin6_family = AF_INET6;
- so->lsa.sin6.sin6_port = htons((uint16_t) port);
-#else
- so->lsa.sin.sin_family = AF_INET;
- so->lsa.sin.sin_port = htons((uint16_t) port);
+ if (conn->endpoint_type == EP_USER) {
+ call_request_handler_if_data_is_buffered(conn);
+ }
+#ifndef MONGOOSE_NO_DAV
+ if (conn->endpoint_type == EP_PUT && io->len > 0) {
+ forward_put_data(conn);
+ }
#endif
-
- return 1;
}
-static int set_ports_option(struct mg_context *ctx) {
- const char *list = ctx->config[LISTENING_PORTS];
- int on = 1, success = 1;
-#if defined(USE_IPV6)
- int off = 0;
-#endif
- struct vec vec;
- struct socket so, *ptr;
-
- while (success && (list = next_option(list, &vec, NULL)) != NULL) {
- if (!parse_port_string(&vec, &so)) {
- cry(fc(ctx), "%s: %.*s: invalid port spec. Expecting list of: %s",
- __func__, (int) vec.len, vec.ptr, "[IP_ADDRESS:]PORT[s|p]");
- success = 0;
- } else if (so.is_ssl && ctx->ssl_ctx == NULL) {
- cry(fc(ctx), "Cannot add SSL socket, is -ssl_certificate option set?");
- success = 0;
- } else if ((so.sock = socket(so.lsa.sa.sa_family, SOCK_STREAM, 6)) ==
- INVALID_SOCKET ||
- // On Windows, SO_REUSEADDR is recommended only for
- // broadcast UDP sockets
- setsockopt(so.sock, SOL_SOCKET, SO_REUSEADDR,
- (SETSOCKOPT_CAST) &on, sizeof(on)) != 0 ||
-#if defined(USE_IPV6)
- setsockopt(so.sock, IPPROTO_IPV6, IPV6_V6ONLY, (SETSOCKOPT_CAST) &off,
- sizeof(off)) != 0 ||
-#endif
- bind(so.sock, &so.lsa.sa, sizeof(so.lsa)) != 0 ||
- listen(so.sock, SOMAXCONN) != 0) {
- cry(fc(ctx), "%s: cannot bind to %.*s: %s", __func__,
- (int) vec.len, vec.ptr, strerror(ERRNO));
- closesocket(so.sock);
- success = 0;
- } else if ((ptr = (struct socket*)realloc(ctx->listening_sockets,
- (ctx->num_listening_sockets + 1) *
- sizeof(ctx->listening_sockets[0]))) == NULL) {
- closesocket(so.sock);
- success = 0;
- } else {
- set_close_on_exec(so.sock);
- ctx->listening_sockets = ptr;
- ctx->listening_sockets[ctx->num_listening_sockets] = so;
- ctx->num_listening_sockets++;
- }
- }
-
- if (!success) {
- close_all_listening_sockets(ctx);
- }
-
- return success;
+static void call_http_client_handler(struct connection *conn) {
+ //conn->mg_conn.status_code = code;
+ // For responses without Content-Lengh, use the whole buffer
+ if (conn->cl == 0) {
+ conn->mg_conn.content_len = conn->ns_conn->recv_iobuf.len;
+ }
+ conn->mg_conn.content = conn->ns_conn->recv_iobuf.buf;
+ if (call_user(conn, MG_REPLY) == MG_FALSE) {
+ conn->ns_conn->flags |= NSF_CLOSE_IMMEDIATELY;
+ }
+ iobuf_remove(&conn->ns_conn->recv_iobuf, conn->mg_conn.content_len);
+ conn->mg_conn.status_code = 0;
+ conn->cl = conn->num_bytes_sent = conn->request_len = 0;
+ free(conn->request);
+ conn->request = NULL;
}
-static void log_header(const struct mg_connection *conn, const char *header,
- FILE *fp) {
- const char *header_value;
+static void process_response(struct connection *conn) {
+ struct iobuf *io = &conn->ns_conn->recv_iobuf;
- if ((header_value = mg_get_header(conn, header)) == NULL) {
- (void) fprintf(fp, "%s", " -");
- } else {
- (void) fprintf(fp, " \"%s\"", header_value);
- }
+ try_parse(conn);
+ DBG(("%p %d %zu", conn, conn->request_len, io->len));
+ if (conn->request_len < 0 ||
+ (conn->request_len == 0 && io->len > MAX_REQUEST_SIZE)) {
+ call_http_client_handler(conn);
+ } else if ((int64_t) io->len >= conn->cl) {
+ call_http_client_handler(conn);
+ }
}
-static void log_access(const struct mg_connection *conn) {
- const struct mg_request_info *ri;
- FILE *fp;
- char date[64], src_addr[IP_ADDR_STR_LEN];
-
- fp = conn->ctx->config[ACCESS_LOG_FILE] == NULL ? NULL :
- fopen(conn->ctx->config[ACCESS_LOG_FILE], "a+");
+struct mg_connection *mg_connect(struct mg_server *server, const char *host,
+ int port, int use_ssl) {
+ struct ns_connection *nsconn;
+ struct connection *conn;
- if (fp == NULL)
- return;
+ nsconn = ns_connect(&server->ns_server, host, port, use_ssl, NULL);
+ if (nsconn == NULL) return 0;
- strftime(date, sizeof(date), "%d/%b/%Y:%H:%M:%S %z",
- localtime(&conn->birth_time));
+ if ((conn = (struct connection *) calloc(1, sizeof(*conn))) == NULL) {
+ nsconn->flags |= NSF_CLOSE_IMMEDIATELY;
+ return 0;
+ }
- ri = &conn->request_info;
- flockfile(fp);
+ // Interlink two structs
+ conn->ns_conn = nsconn;
+ nsconn->connection_data = conn;
- sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
- fprintf(fp, "%s - %s [%s] \"%s %s HTTP/%s\" %d %" INT64_FMT,
- src_addr, ri->remote_user == NULL ? "-" : ri->remote_user, date,
- ri->request_method ? ri->request_method : "-",
- ri->uri ? ri->uri : "-", ri->http_version,
- conn->status_code, conn->num_bytes_sent);
- log_header(conn, "Referer", fp);
- log_header(conn, "User-Agent", fp);
- fputc('\n', fp);
- fflush(fp);
+ conn->server = server;
+ conn->endpoint_type = EP_CLIENT;
+ //conn->handler = handler;
+ conn->mg_conn.server_param = server->ns_server.server_data;
+ conn->ns_conn->flags = NSF_CONNECTING;
- funlockfile(fp);
- fclose(fp);
+ return &conn->mg_conn;
}
-// Verify given socket address against the ACL.
-// Return -1 if ACL is malformed, 0 if address is disallowed, 1 if allowed.
-static int check_acl(struct mg_context *ctx, uint32_t remote_ip) {
- int allowed, flag;
- uint32_t net, mask;
- struct vec vec;
- const char *list = ctx->config[ACCESS_CONTROL_LIST];
-
- // If any ACL is set, deny by default
- allowed = list == NULL ? '+' : '-';
-
- while ((list = next_option(list, &vec, NULL)) != NULL) {
- flag = vec.ptr[0];
- if ((flag != '+' && flag != '-') ||
- parse_net(&vec.ptr[1], &net, &mask) == 0) {
- cry(fc(ctx), "%s: subnet must be [+|-]x.x.x.x[/x]", __func__);
- return -1;
- }
-
- if (net == (remote_ip & mask)) {
- allowed = flag;
- }
- }
-
- return allowed == '+';
-}
-
-#if !defined(_WIN32)
-static int set_uid_option(struct mg_context *ctx) {
- struct passwd *pw;
- const char *uid = ctx->config[RUN_AS_USER];
- int success = 0;
-
- if (uid == NULL) {
- success = 1;
- } else {
- if ((pw = getpwnam(uid)) == NULL) {
- cry(fc(ctx), "%s: unknown user [%s]", __func__, uid);
- } else if (setgid(pw->pw_gid) == -1) {
- cry(fc(ctx), "%s: setgid(%s): %s", __func__, uid, strerror(errno));
- } else if (setuid(pw->pw_uid) == -1) {
- cry(fc(ctx), "%s: setuid(%s): %s", __func__, uid, strerror(errno));
- } else {
- success = 1;
- }
- }
-
- return success;
-}
-#endif // !_WIN32
-
-#if !defined(NO_SSL)
-static pthread_mutex_t *ssl_mutexes;
-
-static int sslize(struct mg_connection *conn, SSL_CTX *s, int (*func)(SSL *)) {
- return (conn->ssl = SSL_new(s)) != NULL &&
- SSL_set_fd(conn->ssl, conn->client.sock) == 1 &&
- func(conn->ssl) == 1;
-}
-
-// Return OpenSSL error message
-static const char *ssl_error(void) {
- unsigned long err;
- err = ERR_get_error();
- return err == 0 ? "" : ERR_error_string(err, NULL);
-}
-
-static void ssl_locking_callback(int mode, int mutex_num, const char *file,
- int line) {
- (void) line;
- (void) file;
-
- if (mode & 1) { // 1 is CRYPTO_LOCK
- (void) pthread_mutex_lock(&ssl_mutexes[mutex_num]);
- } else {
- (void) pthread_mutex_unlock(&ssl_mutexes[mutex_num]);
- }
-}
-
-static unsigned long ssl_id_callback(void) {
- return (unsigned long) pthread_self();
-}
-
-#if !defined(NO_SSL_DL)
-static int load_dll(struct mg_context *ctx, const char *dll_name,
- struct ssl_func *sw) {
- union {void *p; void (*fp)(void);} u;
- void *dll_handle;
- struct ssl_func *fp;
-
- if ((dll_handle = dlopen(dll_name, RTLD_LAZY)) == NULL) {
- cry(fc(ctx), "%s: cannot load %s", __func__, dll_name);
- return 0;
- }
-
- for (fp = sw; fp->name != NULL; fp++) {
-#ifdef _WIN32
- // GetProcAddress() returns pointer to function
- u.fp = (void (*)(void)) dlsym(dll_handle, fp->name);
-#else
- // dlsym() on UNIX returns void *. ISO C forbids casts of data pointers to
- // function pointers. We need to use a union to make a cast.
- u.p = dlsym(dll_handle, fp->name);
-#endif // _WIN32
- if (u.fp == NULL) {
- cry(fc(ctx), "%s: %s: cannot find %s", __func__, dll_name, fp->name);
- return 0;
- } else {
- fp->ptr = u.fp;
- }
- }
-
- return 1;
-}
-#endif // NO_SSL_DL
-
-// Dynamically load SSL library. Set up ctx->ssl_ctx pointer.
-static int set_ssl_option(struct mg_context *ctx) {
- int i, size;
- const char *pem;
-
- // If PEM file is not specified, skip SSL initialization.
- if ((pem = ctx->config[SSL_CERTIFICATE]) == NULL) {
- return 1;
- }
-
-#if !defined(NO_SSL_DL)
- if (!load_dll(ctx, SSL_LIB, ssl_sw) ||
- !load_dll(ctx, CRYPTO_LIB, crypto_sw)) {
- return 0;
- }
-#endif // NO_SSL_DL
-
- // Initialize SSL library
- SSL_library_init();
- SSL_load_error_strings();
-
- if ((ctx->ssl_ctx = SSL_CTX_new(SSLv23_server_method())) == NULL) {
- cry(fc(ctx), "SSL_CTX_new (server) error: %s", ssl_error());
- return 0;
- }
-
- // If user callback returned non-NULL, that means that user callback has
- // set up certificate itself. In this case, skip sertificate setting.
- if ((ctx->callbacks.init_ssl == NULL ||
- !ctx->callbacks.init_ssl(ctx->ssl_ctx, ctx->user_data)) &&
- (SSL_CTX_use_certificate_file(ctx->ssl_ctx, pem, 1) == 0 ||
- SSL_CTX_use_PrivateKey_file(ctx->ssl_ctx, pem, 1) == 0)) {
- cry(fc(ctx), "%s: cannot open %s: %s", __func__, pem, ssl_error());
- return 0;
- }
-
- if (pem != NULL) {
- (void) SSL_CTX_use_certificate_chain_file(ctx->ssl_ctx, pem);
- }
-
- // Initialize locking callbacks, needed for thread safety.
- // http://www.openssl.org/support/faq.html#PROG1
- size = sizeof(pthread_mutex_t) * CRYPTO_num_locks();
- if ((ssl_mutexes = (pthread_mutex_t *) malloc((size_t)size)) == NULL) {
- cry(fc(ctx), "%s: cannot allocate mutexes: %s", __func__, ssl_error());
- return 0;
- }
-
- for (i = 0; i < CRYPTO_num_locks(); i++) {
- pthread_mutex_init(&ssl_mutexes[i], NULL);
- }
-
- CRYPTO_set_locking_callback(&ssl_locking_callback);
- CRYPTO_set_id_callback(&ssl_id_callback);
-
- return 1;
-}
-
-static void uninitialize_ssl(struct mg_context *ctx) {
- int i;
- if (ctx->ssl_ctx != NULL) {
- CRYPTO_set_locking_callback(NULL);
- for (i = 0; i < CRYPTO_num_locks(); i++) {
- pthread_mutex_destroy(&ssl_mutexes[i]);
- }
- CRYPTO_set_locking_callback(NULL);
- CRYPTO_set_id_callback(NULL);
- }
-}
-#endif // !NO_SSL
-
-static int set_gpass_option(struct mg_context *ctx) {
- struct file file = STRUCT_FILE_INITIALIZER;
- const char *path = ctx->config[GLOBAL_PASSWORDS_FILE];
- if (path != NULL && !mg_stat(fc(ctx), path, &file)) {
- cry(fc(ctx), "Cannot open %s: %s", path, strerror(ERRNO));
- return 0;
- }
- return 1;
-}
-
-static int set_acl_option(struct mg_context *ctx) {
- return check_acl(ctx, (uint32_t) 0x7f000001UL) != -1;
-}
-
-static void reset_per_request_attributes(struct mg_connection *conn) {
- conn->path_info = NULL;
- conn->num_bytes_sent = conn->consumed_content = 0;
- conn->status_code = -1;
- conn->must_close = conn->request_len = conn->throttle = 0;
-}
-
-static void close_socket_gracefully(struct mg_connection *conn) {
-#if defined(_WIN32)
- char buf[MG_BUF_LEN];
- int n;
+#ifndef MONGOOSE_NO_LOGGING
+static void log_header(const struct mg_connection *conn, const char *header,
+ FILE *fp) {
+ const char *header_value;
+
+ if ((header_value = mg_get_header(conn, header)) == NULL) {
+ (void) fprintf(fp, "%s", " -");
+ } else {
+ (void) fprintf(fp, " \"%s\"", header_value);
+ }
+}
+
+static void log_access(const struct connection *conn, const char *path) {
+ const struct mg_connection *c = &conn->mg_conn;
+ FILE *fp = (path == NULL) ? NULL : fopen(path, "a+");
+ char date[64], user[100];
+ time_t now;
+
+ if (fp == NULL) return;
+ now = time(NULL);
+ strftime(date, sizeof(date), "%d/%b/%Y:%H:%M:%S %z", localtime(&now));
+
+ flockfile(fp);
+ mg_parse_header(mg_get_header(&conn->mg_conn, "Authorization"), "username",
+ user, sizeof(user));
+ fprintf(fp, "%s - %s [%s] \"%s %s%s%s HTTP/%s\" %d %" INT64_FMT,
+ c->remote_ip, user[0] == '\0' ? "-" : user, date,
+ c->request_method ? c->request_method : "-",
+ c->uri ? c->uri : "-", c->query_string ? "?" : "",
+ c->query_string ? c->query_string : "",
+ c->http_version, c->status_code, conn->num_bytes_sent);
+ log_header(c, "Referer", fp);
+ log_header(c, "User-Agent", fp);
+ fputc('\n', fp);
+ fflush(fp);
+
+ funlockfile(fp);
+ fclose(fp);
+}
#endif
- struct linger linger;
-
- // Set linger option to avoid socket hanging out after close. This prevent
- // ephemeral port exhaust problem under high QPS.
- linger.l_onoff = 1;
- linger.l_linger = 1;
- setsockopt(conn->client.sock, SOL_SOCKET, SO_LINGER,
- (char *) &linger, sizeof(linger));
- // Send FIN to the client
- shutdown(conn->client.sock, SHUT_WR);
- set_non_blocking_mode(conn->client.sock);
-
-#if defined(_WIN32)
- // Read and discard pending incoming data. If we do not do that and close the
- // socket, the data in the send buffer may be discarded. This
- // behaviour is seen on Windows, when client keeps sending data
- // when server decides to close the connection; then when client
- // does recv() it gets no data back.
- do {
- n = pull(NULL, conn, buf, sizeof(buf));
- } while (n > 0);
+static void close_local_endpoint(struct connection *conn) {
+ struct mg_connection *c = &conn->mg_conn;
+ // Must be done before free()
+ int keep_alive = should_keep_alive(&conn->mg_conn) &&
+ (conn->endpoint_type == EP_FILE || conn->endpoint_type == EP_USER);
+ DBG(("%p %d %d %d", conn, conn->endpoint_type, keep_alive,
+ conn->ns_conn->flags));
+
+ switch (conn->endpoint_type) {
+ case EP_PUT:
+ case EP_FILE:
+ close(conn->endpoint.fd);
+ break;
+ case EP_CGI:
+ case EP_PROXY:
+ if (conn->endpoint.nc != NULL) {
+ DBG(("%p %p %p :-)", conn, conn->ns_conn, conn->endpoint.nc));
+ conn->endpoint.nc->flags |= NSF_CLOSE_IMMEDIATELY;
+ conn->endpoint.nc->connection_data = NULL;
+ }
+ break;
+ default: break;
+ }
+
+#ifndef MONGOOSE_NO_LOGGING
+ if (c->status_code > 0 && conn->endpoint_type != EP_CLIENT &&
+ c->status_code != 400) {
+ log_access(conn, conn->server->config_options[ACCESS_LOG_FILE]);
+ }
#endif
- // Now we know that our FIN is ACK-ed, safe to close
- closesocket(conn->client.sock);
-}
+ // Gobble possible POST data sent to the URI handler
+ iobuf_free(&conn->ns_conn->recv_iobuf);
+ free(conn->request);
+ free(conn->path_info);
+
+ conn->endpoint_type = EP_NONE;
+ conn->cl = conn->num_bytes_sent = conn->request_len = 0;
+ conn->ns_conn->flags &= ~(NSF_FINISHED_SENDING_DATA |
+ NSF_BUFFER_BUT_DONT_SEND | NSF_CLOSE_IMMEDIATELY |
+ MG_HEADERS_SENT | MG_LONG_RUNNING);
+ c->num_headers = c->status_code = c->is_websocket = c->content_len = 0;
+ conn->endpoint.nc = NULL;
+ c->request_method = c->uri = c->http_version = c->query_string = NULL;
+ conn->request = conn->path_info = NULL;
+
+ if (keep_alive) {
+ on_recv_data(conn); // Can call us recursively if pipelining is used
+ } else {
+ conn->ns_conn->flags |= conn->ns_conn->send_iobuf.len == 0 ?
+ NSF_CLOSE_IMMEDIATELY : NSF_FINISHED_SENDING_DATA;
+ }
+}
+
+static void transfer_file_data(struct connection *conn) {
+ char buf[IOBUF_SIZE];
+ int n = read(conn->endpoint.fd, buf, conn->cl < (int64_t) sizeof(buf) ?
+ (int) conn->cl : (int) sizeof(buf));
+
+ if (n <= 0) {
+ close_local_endpoint(conn);
+ } else if (n > 0) {
+ conn->cl -= n;
+ ns_send(conn->ns_conn, buf, n);
+ if (conn->cl <= 0) {
+ close_local_endpoint(conn);
+ }
+ }
+}
+
+int mg_poll_server(struct mg_server *server, int milliseconds) {
+ return ns_server_poll(&server->ns_server, milliseconds);
+}
+
+void mg_destroy_server(struct mg_server **server) {
+ if (server != NULL && *server != NULL) {
+ struct mg_server *s = *server;
+ int i;
+
+ ns_server_free(&s->ns_server);
+ for (i = 0; i < (int) ARRAY_SIZE(s->config_options); i++) {
+ free(s->config_options[i]); // It is OK to free(NULL)
+ }
+ free(s);
+ *server = NULL;
+ }
+}
+
+struct mg_iterator {
+ mg_handler_t cb;
+ void *param;
+};
-static void close_connection(struct mg_connection *conn) {
- conn->must_close = 1;
+static void iter(struct ns_connection *nsconn, enum ns_event ev, void *param) {
+ if (ev == NS_POLL) {
+ struct mg_iterator *it = (struct mg_iterator *) param;
+ struct connection *c = (struct connection *) nsconn->connection_data;
+ if (c != NULL) c->mg_conn.callback_param = it->param;
+ it->cb(&c->mg_conn, MG_POLL);
+ }
+}
+
+// Apply function to all active connections.
+void mg_iterate_over_connections(struct mg_server *server, mg_handler_t cb,
+ void *param) {
+ struct mg_iterator it = { cb, param };
+ ns_iterate(&server->ns_server, iter, &it);
+}
+
+static int get_var(const char *data, size_t data_len, const char *name,
+ char *dst, size_t dst_len) {
+ const char *p, *e, *s;
+ size_t name_len;
+ int len;
+
+ if (dst == NULL || dst_len == 0) {
+ len = -2;
+ } else if (data == NULL || name == NULL || data_len == 0) {
+ len = -1;
+ dst[0] = '\0';
+ } else {
+ name_len = strlen(name);
+ e = data + data_len;
+ len = -1;
+ dst[0] = '\0';
+
+ // data is "var1=val1&var2=val2...". Find variable first
+ for (p = data; p + name_len < e; p++) {
+ if ((p == data || p[-1] == '&') && p[name_len] == '=' &&
+ !mg_strncasecmp(name, p, name_len)) {
+
+ // Point p to variable value
+ p += name_len + 1;
+
+ // Point s to the end of the value
+ s = (const char *) memchr(p, '&', (size_t)(e - p));
+ if (s == NULL) {
+ s = e;
+ }
+ assert(s >= p);
+
+ // Decode variable into destination buffer
+ len = mg_url_decode(p, (size_t)(s - p), dst, dst_len, 1);
+
+ // Redirect error code from -1 to -2 (destination buffer too small).
+ if (len == -1) {
+ len = -2;
+ }
+ break;
+ }
+ }
+ }
+
+ return len;
+}
+
+int mg_get_var(const struct mg_connection *conn, const char *name,
+ char *dst, size_t dst_len) {
+ int len = get_var(conn->query_string, conn->query_string == NULL ? 0 :
+ strlen(conn->query_string), name, dst, dst_len);
+ if (len < 0) {
+ len = get_var(conn->content, conn->content_len, name, dst, dst_len);
+ }
+ return len;
+}
+
+static int get_line_len(const char *buf, int buf_len) {
+ int len = 0;
+ while (len < buf_len && buf[len] != '\n') len++;
+ return buf[len] == '\n' ? len + 1: -1;
+}
+
+int mg_parse_multipart(const char *buf, int buf_len,
+ char *var_name, int var_name_len,
+ char *file_name, int file_name_len,
+ const char **data, int *data_len) {
+ static const char cd[] = "Content-Disposition: ";
+ //struct mg_connection c;
+ int hl, bl, n, ll, pos, cdl = sizeof(cd) - 1;
+ //char *p;
+
+ if (buf == NULL || buf_len <= 0) return 0;
+ if ((hl = get_request_len(buf, buf_len)) <= 0) return 0;
+ if (buf[0] != '-' || buf[1] != '-' || buf[2] == '\n') return 0;
+
+ // Get boundary length
+ bl = get_line_len(buf, buf_len);
+
+ // Loop through headers, fetch variable name and file name
+ var_name[0] = file_name[0] = '\0';
+ for (n = bl; (ll = get_line_len(buf + n, hl - n)) > 0; n += ll) {
+ if (mg_strncasecmp(cd, buf + n, cdl) == 0) {
+ parse_header(buf + n + cdl, ll - (cdl + 2), "name",
+ var_name, var_name_len);
+ parse_header(buf + n + cdl, ll - (cdl + 2), "filename",
+ file_name, file_name_len);
+ }
+ }
+
+ // Scan body, search for terminating boundary
+ for (pos = hl; pos + (bl - 2) < buf_len; pos++) {
+ if (buf[pos] == '-' && !memcmp(buf, &buf[pos], bl - 2)) {
+ if (data_len != NULL) *data_len = (pos - 2) - hl;
+ if (data != NULL) *data = buf + hl;
+ return pos;
+ }
+ }
+
+ return 0;
+}
-#ifndef NO_SSL
- if (conn->ssl != NULL) {
- // Run SSL_shutdown twice to ensure completly close SSL connection
- SSL_shutdown(conn->ssl);
- SSL_free(conn->ssl);
- conn->ssl = NULL;
- }
-#endif
- if (conn->client.sock != INVALID_SOCKET) {
- close_socket_gracefully(conn);
- conn->client.sock = INVALID_SOCKET;
- }
+const char **mg_get_valid_option_names(void) {
+ return static_config_options;
}
-void mg_close_connection(struct mg_connection *conn) {
-#ifndef NO_SSL
- if (conn->client_ssl_ctx != NULL) {
- SSL_CTX_free((SSL_CTX *) conn->client_ssl_ctx);
- }
+static int get_option_index(const char *name) {
+ int i;
+
+ for (i = 0; static_config_options[i * 2] != NULL; i++) {
+ if (strcmp(static_config_options[i * 2], name) == 0) {
+ return i;
+ }
+ }
+ return -1;
+}
+
+static void set_default_option_values(char **opts) {
+ const char *value, **all_opts = mg_get_valid_option_names();
+ int i;
+
+ for (i = 0; all_opts[i * 2] != NULL; i++) {
+ value = all_opts[i * 2 + 1];
+ if (opts[i] == NULL && value != NULL) {
+ opts[i] = mg_strdup(value);
+ }
+ }
+}
+
+const char *mg_set_option(struct mg_server *server, const char *name,
+ const char *value) {
+ int ind = get_option_index(name);
+ const char *error_msg = NULL;
+ char **v = NULL;
+
+ if (ind < 0) return "No such option";
+ v = &server->config_options[ind];
+
+ // Return success immediately if setting to the same value
+ if ((*v == NULL && value == NULL) ||
+ (value != NULL && *v != NULL && !strcmp(value, *v))) {
+ return NULL;
+ }
+
+ if (*v != NULL) {
+ free(*v);
+ *v = NULL;
+ }
+
+ if (value == NULL || value[0] == '\0') return NULL;
+
+ *v = mg_strdup(value);
+ DBG(("%s [%s]", name, *v));
+
+ if (ind == LISTENING_PORT) {
+ int port = ns_bind(&server->ns_server, value);
+ if (port < 0) {
+ error_msg = "Cannot bind to port";
+ } else {
+ if (!strcmp(value, "0")) {
+ char buf[10];
+ mg_snprintf(buf, sizeof(buf), "%d", port);
+ free(*v);
+ *v = mg_strdup(buf);
+ }
+ }
+#ifndef _WIN32
+ } else if (ind == RUN_AS_USER) {
+ struct passwd *pw;
+ if ((pw = getpwnam(value)) == NULL) {
+ error_msg = "Unknown user";
+ } else if (setgid(pw->pw_gid) != 0) {
+ error_msg = "setgid() failed";
+ } else if (setuid(pw->pw_uid) != 0) {
+ error_msg = "setuid() failed";
+ }
#endif
- close_connection(conn);
- free(conn);
-}
-
-struct mg_connection *mg_connect(const char *host, int port, int use_ssl,
- char *ebuf, size_t ebuf_len) {
- static struct mg_context fake_ctx;
- struct mg_connection *conn = NULL;
- SOCKET sock;
-
- if ((sock = conn2(host, port, use_ssl, ebuf, ebuf_len)) == INVALID_SOCKET) {
- } else if ((conn = (struct mg_connection *)
- calloc(1, sizeof(*conn) + MAX_REQUEST_SIZE)) == NULL) {
- snprintf(ebuf, ebuf_len, "calloc(): %s", strerror(ERRNO));
- closesocket(sock);
-#ifndef NO_SSL
- } else if (use_ssl && (conn->client_ssl_ctx =
- SSL_CTX_new(SSLv23_client_method())) == NULL) {
- snprintf(ebuf, ebuf_len, "SSL_CTX_new error");
- closesocket(sock);
- free(conn);
- conn = NULL;
-#endif // NO_SSL
- } else {
- socklen_t len;
- conn->buf_size = MAX_REQUEST_SIZE;
- conn->buf = (char *) (conn + 1);
- conn->ctx = &fake_ctx;
- conn->client.sock = sock;
- getsockname(sock, &conn->client.rsa.sa, &len);
- conn->client.is_ssl = use_ssl;
-#ifndef NO_SSL
- if (use_ssl) {
- // SSL_CTX_set_verify call is needed to switch off server certificate
- // checking, which is off by default in OpenSSL and on in yaSSL.
- SSL_CTX_set_verify(conn->client_ssl_ctx, 0, 0);
- sslize(conn, conn->client_ssl_ctx, SSL_connect);
- }
+#ifdef NS_ENABLE_SSL
+ } else if (ind == SSL_CERTIFICATE) {
+ int res = ns_set_ssl_cert(&server->ns_server, value);
+ if (res == -2) {
+ error_msg = "Cannot load PEM";
+ } else if (res == -3) {
+ error_msg = "SSL not enabled";
+ } else if (res == -1) {
+ error_msg = "SSL_CTX_new() failed";
+ }
+ } else if (ind == SSL_CA_CERTIFICATE) {
+ if (ns_set_ssl_ca_cert(&server->ns_server, value) != 0) {
+ error_msg = "Error setting CA cert";
+ }
#endif
- }
-
- return conn;
+ }
+
+ return error_msg;
+}
+
+static void set_ips(struct ns_connection *nc, int is_rem) {
+ struct connection *conn = (struct connection *) nc->connection_data;
+ struct mg_connection *c = &conn->mg_conn;
+ char buf[100];
+
+ ns_sock_to_str(nc->sock, buf, sizeof(buf), is_rem ? 7 : 3);
+ sscanf(buf, "%47[^:]:%hu",
+ is_rem ? c->remote_ip : c->local_ip,
+ is_rem ? &c->remote_port : &c->local_port);
+ //DBG(("%p %s %s", conn, is_rem ? "rem" : "loc", buf));
+}
+
+static void on_accept(struct ns_connection *nc, union socket_address *sa) {
+ struct mg_server *server = (struct mg_server *) nc->server;
+ struct connection *conn;
+
+ if (!check_acl(server->config_options[ACCESS_CONTROL_LIST],
+ ntohl(* (uint32_t *) &sa->sin.sin_addr)) ||
+ (conn = (struct connection *) calloc(1, sizeof(*conn))) == NULL) {
+ nc->flags |= NSF_CLOSE_IMMEDIATELY;
+ } else {
+ // Circularly link two connection structures
+ nc->connection_data = conn;
+ conn->ns_conn = nc;
+
+ // Initialize the rest of connection attributes
+ conn->server = server;
+ conn->mg_conn.server_param = nc->server->server_data;
+ set_ips(nc, 1);
+ set_ips(nc, 0);
+ }
+}
+
+#ifndef MONGOOSE_NO_FILESYSTEM
+static void hexdump(struct ns_connection *nc, const char *path,
+ int num_bytes, int is_sent) {
+ const struct iobuf *io = is_sent ? &nc->send_iobuf : &nc->recv_iobuf;
+ FILE *fp;
+ char *buf, src[60], dst[60];
+ int buf_size = num_bytes * 5 + 100;
+
+ if (path != NULL && (fp = fopen(path, "a")) != NULL) {
+ ns_sock_to_str(nc->sock, src, sizeof(src), 3);
+ ns_sock_to_str(nc->sock, dst, sizeof(dst), 7);
+ fprintf(fp, "%lu %p %s %s %s %d\n", (unsigned long) time(NULL),
+ nc->connection_data, src,
+ is_sent == 0 ? "<-" : is_sent == 1 ? "->" :
+ is_sent == 2 ? "<A" : "C>", dst, num_bytes);
+ if (num_bytes > 0 && (buf = (char *) malloc(buf_size)) != NULL) {
+ ns_hexdump(io->buf + (is_sent ? 0 : io->len) - (is_sent ? 0 : num_bytes),
+ num_bytes, buf, buf_size);
+ fprintf(fp, "%s", buf);
+ free(buf);
+ }
+ fclose(fp);
+ }
}
-
-static int is_valid_uri(const char *uri) {
- // Conform to http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html#sec5.1.2
- // URI can be an asterisk (*) or should start with slash.
- return uri[0] == '/' || (uri[0] == '*' && uri[1] == '\0');
-}
-
-static int getreq(struct mg_connection *conn, char *ebuf, size_t ebuf_len) {
- const char *cl;
-
- ebuf[0] = '\0';
- reset_per_request_attributes(conn);
- conn->request_len = read_request(NULL, conn, conn->buf, conn->buf_size,
- &conn->data_len);
- assert(conn->request_len < 0 || conn->data_len >= conn->request_len);
-
- if (conn->request_len == 0 && conn->data_len == conn->buf_size) {
- snprintf(ebuf, ebuf_len, "%s", "Request Too Large");
- } else if (conn->request_len <= 0) {
- snprintf(ebuf, ebuf_len, "%s", "Client closed connection");
- } else if (parse_http_message(conn->buf, conn->buf_size,
- &conn->request_info) <= 0) {
- snprintf(ebuf, ebuf_len, "Bad request: [%.*s]", conn->data_len, conn->buf);
- } else {
- // Request is valid
- if ((cl = get_header(&conn->request_info, "Content-Length")) != NULL) {
- conn->content_len = strtoll(cl, NULL, 10);
- } else if (!mg_strcasecmp(conn->request_info.request_method, "POST") ||
- !mg_strcasecmp(conn->request_info.request_method, "PUT")) {
- conn->content_len = -1;
- } else {
- conn->content_len = 0;
- }
- conn->birth_time = time(NULL);
- }
- return ebuf[0] == '\0';
-}
-
-struct mg_connection *mg_download(const char *host, int port, int use_ssl,
- char *ebuf, size_t ebuf_len,
- const char *fmt, ...) {
- struct mg_connection *conn;
- va_list ap;
-
- va_start(ap, fmt);
- ebuf[0] = '\0';
- if ((conn = mg_connect(host, port, use_ssl, ebuf, ebuf_len)) == NULL) {
- } else if (mg_vprintf(conn, fmt, ap) <= 0) {
- snprintf(ebuf, ebuf_len, "%s", "Error sending request");
- } else {
- getreq(conn, ebuf, ebuf_len);
- }
- if (ebuf[0] != '\0' && conn != NULL) {
- mg_close_connection(conn);
- conn = NULL;
- }
-
- return conn;
-}
-
-static void process_new_connection(struct mg_connection *conn) {
- struct mg_request_info *ri = &conn->request_info;
- int keep_alive_enabled, keep_alive, discard_len;
- char ebuf[100];
-
- keep_alive_enabled = !strcmp(conn->ctx->config[ENABLE_KEEP_ALIVE], "yes");
- keep_alive = 0;
-
- // Important: on new connection, reset the receiving buffer. Credit goes
- // to crule42.
- conn->data_len = 0;
- do {
- if (!getreq(conn, ebuf, sizeof(ebuf))) {
- send_http_error(conn, 500, "Server Error", "%s", ebuf);
- conn->must_close = 1;
- } else if (!is_valid_uri(conn->request_info.uri)) {
- snprintf(ebuf, sizeof(ebuf), "Invalid URI: [%s]", ri->uri);
- send_http_error(conn, 400, "Bad Request", "%s", ebuf);
- } else if (strcmp(ri->http_version, "1.0") &&
- strcmp(ri->http_version, "1.1")) {
- snprintf(ebuf, sizeof(ebuf), "Bad HTTP version: [%s]", ri->http_version);
- send_http_error(conn, 505, "Bad HTTP version", "%s", ebuf);
- }
-
- if (ebuf[0] == '\0') {
- handle_request(conn);
- if (conn->ctx->callbacks.end_request != NULL) {
- conn->ctx->callbacks.end_request(conn, conn->status_code);
- }
- log_access(conn);
- }
- if (ri->remote_user != NULL) {
- free((void *) ri->remote_user);
- // Important! When having connections with and without auth
- // would cause double free and then crash
- ri->remote_user = NULL;
- }
-
- // NOTE(lsm): order is important here. should_keep_alive() call
- // is using parsed request, which will be invalid after memmove's below.
- // Therefore, memorize should_keep_alive() result now for later use
- // in loop exit condition.
- keep_alive = conn->ctx->stop_flag == 0 && keep_alive_enabled &&
- conn->content_len >= 0 && should_keep_alive(conn);
-
- // Discard all buffered data for this request
- discard_len = conn->content_len >= 0 && conn->request_len > 0 &&
- conn->request_len + conn->content_len < (int64_t) conn->data_len ?
- (int) (conn->request_len + conn->content_len) : conn->data_len;
- assert(discard_len >= 0);
- memmove(conn->buf, conn->buf + discard_len, conn->data_len - discard_len);
- conn->data_len -= discard_len;
- assert(conn->data_len >= 0);
- assert(conn->data_len <= conn->buf_size);
- } while (keep_alive);
-}
-
-// Worker threads take accepted socket from the queue
-static int consume_socket(struct mg_context *ctx, struct socket *sp) {
- (void) pthread_mutex_lock(&ctx->mutex);
- DEBUG_TRACE(("going idle"));
-
- // If the queue is empty, wait. We're idle at this point.
- while (ctx->sq_head == ctx->sq_tail && ctx->stop_flag == 0) {
- pthread_cond_wait(&ctx->sq_full, &ctx->mutex);
- }
-
- // If we're stopping, sq_head may be equal to sq_tail.
- if (ctx->sq_head > ctx->sq_tail) {
- // Copy socket from the queue and increment tail
- *sp = ctx->queue[ctx->sq_tail % ARRAY_SIZE(ctx->queue)];
- ctx->sq_tail++;
- DEBUG_TRACE(("grabbed socket %d, going busy", sp->sock));
-
- // Wrap pointers if needed
- while (ctx->sq_tail > (int) ARRAY_SIZE(ctx->queue)) {
- ctx->sq_tail -= ARRAY_SIZE(ctx->queue);
- ctx->sq_head -= ARRAY_SIZE(ctx->queue);
- }
- }
-
- (void) pthread_cond_signal(&ctx->sq_empty);
- (void) pthread_mutex_unlock(&ctx->mutex);
-
- return !ctx->stop_flag;
-}
-
-static void *worker_thread(void *thread_func_param) {
- struct mg_context *ctx = (struct mg_context *)thread_func_param;
- struct mg_connection *conn;
-
- conn = (struct mg_connection *) calloc(1, sizeof(*conn) + MAX_REQUEST_SIZE);
- if (conn == NULL) {
- cry(fc(ctx), "%s", "Cannot create new connection struct, OOM");
- } else {
- conn->buf_size = MAX_REQUEST_SIZE;
- conn->buf = (char *) (conn + 1);
- conn->ctx = ctx;
- conn->request_info.user_data = ctx->user_data;
-
- // Call consume_socket() even when ctx->stop_flag > 0, to let it signal
- // sq_empty condvar to wake up the master waiting in produce_socket()
- while (consume_socket(ctx, &conn->client)) {
- conn->birth_time = time(NULL);
-
- // Fill in IP, port info early so even if SSL setup below fails,
- // error handler would have the corresponding info.
- // Thanks to Johannes Winkelmann for the patch.
- // TODO(lsm): Fix IPv6 case
- conn->request_info.remote_port = ntohs(conn->client.rsa.sin.sin_port);
- memcpy(&conn->request_info.remote_ip,
- &conn->client.rsa.sin.sin_addr.s_addr, 4);
- conn->request_info.remote_ip = ntohl(conn->request_info.remote_ip);
- conn->request_info.is_ssl = conn->client.is_ssl;
-
- if (!conn->client.is_ssl
-#ifndef NO_SSL
- || sslize(conn, conn->ctx->ssl_ctx, SSL_accept)
#endif
- ) {
- process_new_connection(conn);
- }
-
- close_connection(conn);
- }
- free(conn);
- }
-
- // Signal master that we're done with connection and exiting
- (void) pthread_mutex_lock(&ctx->mutex);
- ctx->num_threads--;
- (void) pthread_cond_signal(&ctx->cond);
- assert(ctx->num_threads >= 0);
- (void) pthread_mutex_unlock(&ctx->mutex);
- DEBUG_TRACE(("exiting"));
- return NULL;
-}
-
-// Master thread adds accepted socket to a queue
-static void produce_socket(struct mg_context *ctx, const struct socket *sp) {
- (void) pthread_mutex_lock(&ctx->mutex);
-
- // If the queue is full, wait
- while (ctx->stop_flag == 0 &&
- ctx->sq_head - ctx->sq_tail >= (int) ARRAY_SIZE(ctx->queue)) {
- (void) pthread_cond_wait(&ctx->sq_empty, &ctx->mutex);
- }
-
- if (ctx->sq_head - ctx->sq_tail < (int) ARRAY_SIZE(ctx->queue)) {
- // Copy socket to the queue and increment head
- ctx->queue[ctx->sq_head % ARRAY_SIZE(ctx->queue)] = *sp;
- ctx->sq_head++;
- DEBUG_TRACE(("queued socket %d", sp->sock));
- }
-
- (void) pthread_cond_signal(&ctx->sq_full);
- (void) pthread_mutex_unlock(&ctx->mutex);
-}
+static void mg_ev_handler(struct ns_connection *nc, enum ns_event ev, void *p) {
+ struct connection *conn = (struct connection *) nc->connection_data;
+ struct mg_server *server = (struct mg_server *) nc->server;
+
+ // Send NS event to the handler. Note that call_user won't send an event
+ // if conn == NULL. Therefore, repeat this for NS_ACCEPT event as well.
+#ifdef MONGOOSE_SEND_NS_EVENTS
+ {
+ struct connection *conn = (struct connection *) nc->connection_data;
+ if (conn != NULL) conn->mg_conn.callback_param = p;
+ call_user(conn, (enum mg_event) ev);
+ }
+#endif
-static int set_sock_timeout(SOCKET sock, int milliseconds) {
-#ifdef _WIN32
- DWORD t = milliseconds;
-#else
- struct timeval t;
- t.tv_sec = milliseconds / 1000;
- t.tv_usec = (milliseconds * 1000) % 1000000;
+ switch (ev) {
+ case NS_ACCEPT:
+ on_accept(nc, (union socket_address *) p);
+#ifndef MONGOOSE_NO_FILESYSTEM
+ hexdump(nc, server->config_options[HEXDUMP_FILE], 0, 2);
#endif
- return setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (SETSOCKOPT_CAST) &t, sizeof(t)) ||
- setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (SETSOCKOPT_CAST) &t, sizeof(t));
-}
-
-static void accept_new_connection(const struct socket *listener,
- struct mg_context *ctx) {
- struct socket so;
- char src_addr[IP_ADDR_STR_LEN];
- socklen_t len = sizeof(so.rsa);
- int on = 1;
-
- if ((so.sock = accept(listener->sock, &so.rsa.sa, &len)) == INVALID_SOCKET) {
- } else if (!check_acl(ctx, ntohl(* (uint32_t *) &so.rsa.sin.sin_addr))) {
- sockaddr_to_string(src_addr, sizeof(src_addr), &so.rsa);
- cry(fc(ctx), "%s: %s is not allowed to connect", __func__, src_addr);
- closesocket(so.sock);
- } else {
- // Put so socket structure into the queue
- DEBUG_TRACE(("Accepted socket %d", (int) so.sock));
- so.is_ssl = listener->is_ssl;
- so.ssl_redir = listener->ssl_redir;
- getsockname(so.sock, &so.lsa.sa, &len);
- // Set TCP keep-alive. This is needed because if HTTP-level keep-alive
- // is enabled, and client resets the connection, server won't get
- // TCP FIN or RST and will keep the connection open forever. With TCP
- // keep-alive, next keep-alive handshake will figure out that the client
- // is down and will close the server end.
- // Thanks to Igor Klopov who suggested the patch.
- setsockopt(so.sock, SOL_SOCKET, SO_KEEPALIVE, (SETSOCKOPT_CAST) &on, sizeof(on));
- set_sock_timeout(so.sock, atoi(ctx->config[REQUEST_TIMEOUT]));
- produce_socket(ctx, &so);
- }
-}
-
-static void *master_thread(void *thread_func_param) {
- struct mg_context *ctx = (struct mg_context *)thread_func_param;
- struct pollfd *pfd;
- int i;
-
- // Increase priority of the master thread
-#if defined(_WIN32)
- SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_ABOVE_NORMAL);
+#ifdef MONGOOSE_SEND_NS_EVENTS
+ {
+ struct connection *conn = (struct connection *) nc->connection_data;
+ if (conn != NULL) conn->mg_conn.callback_param = p;
+ call_user(conn, (enum mg_event) ev);
+ }
#endif
-
-#if defined(ISSUE_317)
- struct sched_param sched_param;
- sched_param.sched_priority = sched_get_priority_max(SCHED_RR);
- pthread_setschedparam(pthread_self(), SCHED_RR, &sched_param);
+ break;
+
+ case NS_CONNECT:
+ if (nc->connection_data != NULL) {
+ set_ips(nc, 1);
+ set_ips(nc, 0);
+ }
+#ifndef MONGOOSE_NO_FILESYSTEM
+ hexdump(nc, server->config_options[HEXDUMP_FILE], 0, 3);
#endif
-
- pfd = (struct pollfd *)calloc(ctx->num_listening_sockets, sizeof(pfd[0]));
- while (pfd != NULL && ctx->stop_flag == 0) {
- for (i = 0; i < ctx->num_listening_sockets; i++) {
- pfd[i].fd = ctx->listening_sockets[i].sock;
- pfd[i].events = POLLIN;
- }
-
- if (poll(pfd, ctx->num_listening_sockets, 200) > 0) {
- for (i = 0; i < ctx->num_listening_sockets; i++) {
- // NOTE(lsm): on QNX, poll() returns POLLRDNORM after the
- // successfull poll, and POLLIN is defined as (POLLRDNORM | POLLRDBAND)
- // Therefore, we're checking pfd[i].revents & POLLIN, not
- // pfd[i].revents == POLLIN.
- if (ctx->stop_flag == 0 && (pfd[i].revents & POLLIN)) {
- accept_new_connection(&ctx->listening_sockets[i], ctx);
- }
- }
- }
- }
- free(pfd);
- DEBUG_TRACE(("stopping workers"));
-
- // Stop signal received: somebody called mg_stop. Quit.
- close_all_listening_sockets(ctx);
-
- // Wakeup workers that are waiting for connections to handle.
- pthread_cond_broadcast(&ctx->sq_full);
-
- // Wait until all threads finish
- (void) pthread_mutex_lock(&ctx->mutex);
- while (ctx->num_threads > 0) {
- (void) pthread_cond_wait(&ctx->cond, &ctx->mutex);
- }
- (void) pthread_mutex_unlock(&ctx->mutex);
-
- // All threads exited, no sync is needed. Destroy mutex and condvars
- (void) pthread_mutex_destroy(&ctx->mutex);
- (void) pthread_cond_destroy(&ctx->cond);
- (void) pthread_cond_destroy(&ctx->sq_empty);
- (void) pthread_cond_destroy(&ctx->sq_full);
-
-#if !defined(NO_SSL)
- uninitialize_ssl(ctx);
+ conn->mg_conn.status_code = * (int *) p;
+ if (conn->mg_conn.status_code != 0 ||
+ (!(nc->flags & MG_PROXY_CONN) &&
+ call_user(conn, MG_CONNECT) == MG_FALSE)) {
+ nc->flags |= NSF_CLOSE_IMMEDIATELY;
+ }
+ break;
+
+ case NS_RECV:
+#ifndef MONGOOSE_NO_FILESYSTEM
+ hexdump(nc, server->config_options[HEXDUMP_FILE], * (int *) p, 0);
#endif
- DEBUG_TRACE(("exiting"));
-
- // Signal mg_stop() that we're done.
- // WARNING: This must be the very last thing this
- // thread does, as ctx becomes invalid after this line.
- ctx->stop_flag = 2;
- return NULL;
-}
-
-static void free_context(struct mg_context *ctx) {
- int i;
-
- // Deallocate config parameters
- for (i = 0; i < NUM_OPTIONS; i++) {
- if (ctx->config[i] != NULL)
- free(ctx->config[i]);
- }
-
-#ifndef NO_SSL
- // Deallocate SSL context
- if (ctx->ssl_ctx != NULL) {
- SSL_CTX_free(ctx->ssl_ctx);
- }
- if (ssl_mutexes != NULL) {
- free(ssl_mutexes);
- ssl_mutexes = NULL;
- }
-#endif // !NO_SSL
-
- // Deallocate context itself
- free(ctx);
-}
-
-void mg_stop(struct mg_context *ctx) {
- if (!ctx) return;
- ctx->stop_flag = 1;
-
- // Wait until mg_fini() stops
- while (ctx->stop_flag != 2) {
- (void) mg_sleep(10);
- }
- free_context(ctx);
-
-#if defined(_WIN32) && !defined(__SYMBIAN32__)
- (void) WSACleanup();
-#endif // _WIN32
-}
-
-struct mg_context *mg_start(const struct mg_callbacks *callbacks,
- void *user_data,
- const char **options) {
- struct mg_context *ctx;
- const char *name, *value, *default_value;
- int i;
-
-#if defined(_WIN32) && !defined(__SYMBIAN32__)
- WSADATA data;
- WSAStartup(MAKEWORD(2,2), &data);
- InitializeCriticalSection(&global_log_file_lock);
-#endif // _WIN32
-
- // Allocate context and initialize reasonable general case defaults.
- // TODO(lsm): do proper error handling here.
- if ((ctx = (struct mg_context *) calloc(1, sizeof(*ctx))) == NULL) {
- return NULL;
- }
- ctx->callbacks = *callbacks;
- ctx->user_data = user_data;
-
- while (options && (name = *options++) != NULL) {
- if ((i = get_option_index(name)) == -1) {
- cry(fc(ctx), "Invalid option: %s", name);
- free_context(ctx);
- return NULL;
- } else if ((value = *options++) == NULL) {
- cry(fc(ctx), "%s: option value cannot be NULL", name);
- free_context(ctx);
- return NULL;
- }
- if (ctx->config[i] != NULL) {
- cry(fc(ctx), "warning: %s: duplicate option", name);
- free(ctx->config[i]);
- }
- ctx->config[i] = mg_strdup(value);
- DEBUG_TRACE(("[%s] -> [%s]", name, value));
- }
-
- // Set default value if needed
- for (i = 0; config_options[i * 2] != NULL; i++) {
- default_value = config_options[i * 2 + 1];
- if (ctx->config[i] == NULL && default_value != NULL) {
- ctx->config[i] = mg_strdup(default_value);
- }
- }
-
- // NOTE(lsm): order is important here. SSL certificates must
- // be initialized before listening ports. UID must be set last.
- if (!set_gpass_option(ctx) ||
-#if !defined(NO_SSL)
- !set_ssl_option(ctx) ||
+ if (nc->flags & NSF_ACCEPTED) {
+ on_recv_data(conn);
+#ifndef MONGOOSE_NO_CGI
+ } else if (nc->flags & MG_CGI_CONN) {
+ on_cgi_data(nc);
#endif
- !set_ports_option(ctx) ||
-#if !defined(_WIN32)
- !set_uid_option(ctx) ||
+ } else if (nc->flags & MG_PROXY_CONN) {
+ if (conn != NULL) {
+ ns_forward(nc, conn->ns_conn);
+ }
+ } else {
+ process_response(conn);
+ }
+ break;
+
+ case NS_SEND:
+#ifndef MONGOOSE_NO_FILESYSTEM
+ hexdump(nc, server->config_options[HEXDUMP_FILE], * (int *) p, 1);
#endif
- !set_acl_option(ctx)) {
- free_context(ctx);
- return NULL;
- }
-
-#if !defined(_WIN32) && !defined(__SYMBIAN32__)
- // Ignore SIGPIPE signal, so if browser cancels the request, it
- // won't kill the whole process.
- (void) signal(SIGPIPE, SIG_IGN);
- // Also ignoring SIGCHLD to let the OS to reap zombies properly.
- (void) signal(SIGCHLD, SIG_IGN);
-#endif // !_WIN32
-
- (void) pthread_mutex_init(&ctx->mutex, NULL);
- (void) pthread_cond_init(&ctx->cond, NULL);
- (void) pthread_cond_init(&ctx->sq_empty, NULL);
- (void) pthread_cond_init(&ctx->sq_full, NULL);
-
- // Start master (listening) thread
- mg_start_thread(master_thread, ctx);
-
- // Start worker threads
- for (i = 0; i < atoi(ctx->config[NUM_THREADS]); i++) {
- if (mg_start_thread(worker_thread, ctx) != 0) {
- cry(fc(ctx), "Cannot start worker thread: %ld", (long) ERRNO);
- } else {
- ctx->num_threads++;
- }
- }
-
- return ctx;
+ break;
+
+ case NS_CLOSE:
+ nc->connection_data = NULL;
+ if (nc->flags & (MG_CGI_CONN | MG_PROXY_CONN)) {
+ DBG(("%p %p closing cgi/proxy conn", conn, nc));
+ if (conn && conn->ns_conn) {
+ conn->ns_conn->flags &= ~NSF_BUFFER_BUT_DONT_SEND;
+ conn->ns_conn->flags |= conn->ns_conn->send_iobuf.len > 0 ?
+ NSF_FINISHED_SENDING_DATA : NSF_CLOSE_IMMEDIATELY;
+ conn->endpoint.nc = NULL;
+ }
+ } else if (conn != NULL) {
+ DBG(("%p %p %d closing", conn, nc, conn->endpoint_type));
+
+ if (conn->endpoint_type == EP_CLIENT && nc->recv_iobuf.len > 0) {
+ call_http_client_handler(conn);
+ }
+
+ call_user(conn, MG_CLOSE);
+ close_local_endpoint(conn);
+ conn->ns_conn = NULL;
+ free(conn);
+ }
+ break;
+
+ case NS_POLL:
+ if (call_user(conn, MG_POLL) == MG_TRUE) {
+ nc->flags |= NSF_FINISHED_SENDING_DATA;
+ }
+
+ if (conn != NULL && conn->endpoint_type == EP_FILE) {
+ transfer_file_data(conn);
+ }
+
+ // Expire idle connections
+ {
+ time_t current_time = * (time_t *) p;
+
+ if (conn != NULL && conn->mg_conn.is_websocket) {
+ ping_idle_websocket_connection(conn, current_time);
+ }
+
+ if (nc->last_io_time + MONGOOSE_IDLE_TIMEOUT_SECONDS < current_time) {
+ mg_ev_handler(nc, NS_CLOSE, NULL);
+ nc->flags |= NSF_CLOSE_IMMEDIATELY;
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+static void iter2(struct ns_connection *nc, enum ns_event ev, void *param) {
+ mg_handler_t func = NULL;
+ struct connection *conn = (struct connection *) nc->connection_data;
+ const char *msg = (const char *) param;
+ int n;
+ (void) ev;
+
+ //DBG(("%p [%s]", conn, msg));
+ if (sscanf(msg, "%p %n", &func, &n) && func != NULL) {
+ conn->mg_conn.callback_param = (void *) (msg + n);
+ func(&conn->mg_conn, MG_POLL);
+ }
+}
+
+void mg_wakeup_server_ex(struct mg_server *server, mg_handler_t cb,
+ const char *fmt, ...) {
+ va_list ap;
+ char buf[8 * 1024];
+ int len;
+
+ // Encode callback (cb) into a buffer
+ len = snprintf(buf, sizeof(buf), "%p ", cb);
+ va_start(ap, fmt);
+ len += vsnprintf(buf + len, sizeof(buf) - len, fmt, ap);
+ va_end(ap);
+
+ // "len + 1" is to include terminating \0 in the message
+ ns_server_wakeup_ex(&server->ns_server, iter2, buf, len + 1);
+}
+
+void mg_wakeup_server(struct mg_server *server) {
+ ns_server_wakeup_ex(&server->ns_server, NULL, (void *) "", 0);
+}
+
+void mg_set_listening_socket(struct mg_server *server, int sock) {
+ if (server->ns_server.listening_sock != INVALID_SOCKET) {
+ closesocket(server->ns_server.listening_sock);
+ }
+ server->ns_server.listening_sock = (sock_t) sock;
+}
+
+int mg_get_listening_socket(struct mg_server *server) {
+ return server->ns_server.listening_sock;
+}
+
+const char *mg_get_option(const struct mg_server *server, const char *name) {
+ const char **opts = (const char **) server->config_options;
+ int i = get_option_index(name);
+ return i == -1 ? NULL : opts[i] == NULL ? "" : opts[i];
+}
+
+struct mg_server *mg_create_server(void *server_data, mg_handler_t handler) {
+ struct mg_server *server = (struct mg_server *) calloc(1, sizeof(*server));
+ ns_server_init(&server->ns_server, server_data, mg_ev_handler);
+ set_default_option_values(server->config_options);
+ server->event_handler = handler;
+ return server;
}
diff --git a/src/lib/web/mongoose.h b/src/lib/web/mongoose.h
index 64c3a174966..008a54580b8 100644
--- a/src/lib/web/mongoose.h
+++ b/src/lib/web/mongoose.h
@@ -1,380 +1,140 @@
-// Copyright (c) 2004-2012 Sergey Lyubka
+// Copyright (c) 2004-2013 Sergey Lyubka <valenok@gmail.com>
+// Copyright (c) 2013-2014 Cesanta Software Limited
+// All rights reserved
//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
+// This library is dual-licensed: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation. For the terms of this
+// license, see <http://www.gnu.org/licenses/>.
//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
+// You are free to use this library under the terms of the GNU General
+// Public License, but WITHOUT ANY WARRANTY; without even the implied
+// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
+// Alternatively, you can license this library under a commercial
+// license, as set out in <http://cesanta.com/>.
+//
+// NOTE: Detailed API documentation is at http://cesanta.com/#docs
#ifndef MONGOOSE_HEADER_INCLUDED
#define MONGOOSE_HEADER_INCLUDED
-#include <stdio.h>
-#include <stddef.h>
+#define MONGOOSE_VERSION "5.4"
+
+#include <stdio.h> // required for FILE
+#include <stddef.h> // required for size_t
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
-struct mg_context; // Handle for the HTTP service itself
-struct mg_connection; // Handle for the individual connection
-
-
-// This structure contains information about the HTTP request.
-struct mg_request_info {
- const char *request_method; // "GET", "POST", etc
- const char *uri; // URL-decoded URI
- const char *http_version; // E.g. "1.0", "1.1"
- const char *query_string; // URL part after '?', not including '?', or NULL
- const char *remote_user; // Authenticated user, or NULL if no auth used
- long remote_ip; // Client's IP address
- int remote_port; // Client's port
- int is_ssl; // 1 if SSL-ed, 0 if not
- void *user_data; // User data pointer passed to mg_start()
-
- int num_headers; // Number of HTTP headers
- struct mg_header {
- const char *name; // HTTP header name
- const char *value; // HTTP header value
- } http_headers[64]; // Maximum 64 headers
+// This structure contains information about HTTP request.
+struct mg_connection {
+ const char *request_method; // "GET", "POST", etc
+ const char *uri; // URL-decoded URI
+ const char *http_version; // E.g. "1.0", "1.1"
+ const char *query_string; // URL part after '?', not including '?', or NULL
+
+ char remote_ip[48]; // Max IPv6 string length is 45 characters
+ char local_ip[48]; // Local IP address
+ unsigned short remote_port; // Client's port
+ unsigned short local_port; // Local port number
+
+ int num_headers; // Number of HTTP headers
+ struct mg_header {
+ const char *name; // HTTP header name
+ const char *value; // HTTP header value
+ } http_headers[30];
+
+ char *content; // POST (or websocket message) data, or NULL
+ size_t content_len; // Data length
+
+ int is_websocket; // Connection is a websocket connection
+ int status_code; // HTTP status code for HTTP error handler
+ int wsbits; // First byte of the websocket frame
+ void *server_param; // Parameter passed to mg_add_uri_handler()
+ void *connection_param; // Placeholder for connection-specific data
+ void *callback_param; // Needed by mg_iterate_over_connections()
};
-
-// This structure needs to be passed to mg_start(), to let mongoose know
-// which callbacks to invoke. For detailed description, see
-// https://github.com/valenok/mongoose/blob/master/UserManual.md
-struct mg_callbacks {
- // Called when mongoose has received new HTTP request.
- // If callback returns non-zero,
- // callback must process the request by sending valid HTTP headers and body,
- // and mongoose will not do any further processing.
- // If callback returns 0, mongoose processes the request itself. In this case,
- // callback must not send any data to the client.
- int (*begin_request)(struct mg_connection *);
-
- // Called when mongoose has finished processing request.
- void (*end_request)(const struct mg_connection *, int reply_status_code);
-
- // Called when mongoose is about to log a message. If callback returns
- // non-zero, mongoose does not log anything.
- int (*log_message)(const struct mg_connection *, const char *message);
-
- // Called when mongoose initializes SSL library.
- int (*init_ssl)(void *ssl_context, void *user_data);
-
- // Called when websocket request is received, before websocket handshake.
- // If callback returns 0, mongoose proceeds with handshake, otherwise
- // cinnection is closed immediately.
- int (*websocket_connect)(const struct mg_connection *);
-
- // Called when websocket handshake is successfully completed, and
- // connection is ready for data exchange.
- void (*websocket_ready)(struct mg_connection *);
-
- // Called when data frame has been received from the client.
- // Parameters:
- // bits: first byte of the websocket frame, see websocket RFC at
- // http://tools.ietf.org/html/rfc6455, section 5.2
- // data, data_len: payload, with mask (if any) already applied.
- // Return value:
- // non-0: keep this websocket connection opened.
- // 0: close this websocket connection.
- int (*websocket_data)(struct mg_connection *, int bits,
- char *data, size_t data_len);
-
- // Called when mongoose tries to open a file. Used to intercept file open
- // calls, and serve file data from memory instead.
- // Parameters:
- // path: Full path to the file to open.
- // data_len: Placeholder for the file size, if file is served from memory.
- // Return value:
- // NULL: do not serve file from memory, proceed with normal file open.
- // non-NULL: pointer to the file contents in memory. data_len must be
- // initilized with the size of the memory block.
- const char * (*open_file)(const struct mg_connection *,
- const char *path, size_t *data_len);
-
- // Called when mongoose is about to serve Lua server page (.lp file), if
- // Lua support is enabled.
- // Parameters:
- // lua_context: "lua_State *" pointer.
- void (*init_lua)(struct mg_connection *, void *lua_context);
-
- // Called when mongoose has uploaded a file to a temporary directory as a
- // result of mg_upload() call.
- // Parameters:
- // file_file: full path name to the uploaded file.
- void (*upload)(struct mg_connection *, const char *file_name);
-
- // Called when mongoose is about to send HTTP error to the client.
- // Implementing this callback allows to create custom error pages.
- // Parameters:
- // status: HTTP error status code.
- int (*http_error)(struct mg_connection *, int status);
+struct mg_server; // Opaque structure describing server instance
+enum mg_result { MG_FALSE, MG_TRUE, MG_MORE };
+enum mg_event {
+ MG_POLL = 100, // Callback return value is ignored
+ MG_CONNECT, // If callback returns MG_FALSE, connect fails
+ MG_AUTH, // If callback returns MG_FALSE, authentication fails
+ MG_REQUEST, // If callback returns MG_FALSE, Mongoose continues with req
+ MG_REPLY, // If callback returns MG_FALSE, Mongoose closes connection
+ MG_CLOSE, // Connection is closed, callback return value is ignored
+ MG_WS_HANDSHAKE, // New websocket connection, handshake request
+ MG_HTTP_ERROR // If callback returns MG_FALSE, Mongoose continues with err
};
+typedef int (*mg_handler_t)(struct mg_connection *, enum mg_event);
-// Start web server.
-//
-// Parameters:
-// callbacks: mg_callbacks structure with user-defined callbacks.
-// options: NULL terminated list of option_name, option_value pairs that
-// specify Mongoose configuration parameters.
-//
-// Side-effects: on UNIX, ignores SIGCHLD and SIGPIPE signals. If custom
-// processing is required for these, signal handlers must be set up
-// after calling mg_start().
-//
-//
-// Example:
-// const char *options[] = {
-// "document_root", "/var/www",
-// "listening_ports", "80,443s",
-// NULL
-// };
-// struct mg_context *ctx = mg_start(&my_func, NULL, options);
-//
-// Refer to https://github.com/valenok/mongoose/blob/master/UserManual.md
-// for the list of valid option and their possible values.
-//
-// Return:
-// web server context, or NULL on error.
-struct mg_context *mg_start(const struct mg_callbacks *callbacks,
- void *user_data,
- const char **configuration_options);
-
-
-// Stop the web server.
-//
-// Must be called last, when an application wants to stop the web server and
-// release all associated resources. This function blocks until all Mongoose
-// threads are stopped. Context pointer becomes invalid.
-void mg_stop(struct mg_context *);
-
-
-// Get the value of particular configuration parameter.
-// The value returned is read-only. Mongoose does not allow changing
-// configuration at run time.
-// If given parameter name is not valid, NULL is returned. For valid
-// names, return value is guaranteed to be non-NULL. If parameter is not
-// set, zero-length string is returned.
-const char *mg_get_option(const struct mg_context *ctx, const char *name);
-
-
-// Return array of strings that represent valid configuration options.
-// For each option, a short name, long name, and default value is returned.
-// Array is NULL terminated.
-const char **mg_get_valid_option_names(void);
-
-
-// Add, edit or delete the entry in the passwords file.
-//
-// This function allows an application to manipulate .htpasswd files on the
-// fly by adding, deleting and changing user records. This is one of the
-// several ways of implementing authentication on the server side. For another,
-// cookie-based way please refer to the examples/chat.c in the source tree.
-//
-// If password is not NULL, entry is added (or modified if already exists).
-// If password is NULL, entry is deleted.
-//
-// Return:
-// 1 on success, 0 on error.
-int mg_modify_passwords_file(const char *passwords_file_name,
- const char *domain,
- const char *user,
- const char *password);
-
-
-// Return information associated with the request.
-struct mg_request_info *mg_get_request_info(struct mg_connection *);
-
-
-// Send data to the client.
-// Return:
-// 0 when the connection has been closed
-// -1 on error
-// >0 number of bytes written on success
-int mg_write(struct mg_connection *, const void *buf, size_t len);
-
-
-// Send data to a websocket client wrapped in a websocket frame.
-// It is unsafe to read/write to this connection from another thread.
-// This function is available when mongoose is compiled with -DUSE_WEBSOCKET
-//
-// Return:
-// 0 when the connection has been closed
-// -1 on error
-// >0 number of bytes written on success
-int mg_websocket_write(struct mg_connection* conn, int opcode,
- const char *data, size_t data_len);
-
-// Opcodes, from http://tools.ietf.org/html/rfc6455
+// Websocket opcodes, from http://tools.ietf.org/html/rfc6455
enum {
- WEBSOCKET_OPCODE_CONTINUATION = 0x0,
- WEBSOCKET_OPCODE_TEXT = 0x1,
- WEBSOCKET_OPCODE_BINARY = 0x2,
- WEBSOCKET_OPCODE_CONNECTION_CLOSE = 0x8,
- WEBSOCKET_OPCODE_PING = 0x9,
- WEBSOCKET_OPCODE_PONG = 0xa
+ WEBSOCKET_OPCODE_CONTINUATION = 0x0,
+ WEBSOCKET_OPCODE_TEXT = 0x1,
+ WEBSOCKET_OPCODE_BINARY = 0x2,
+ WEBSOCKET_OPCODE_CONNECTION_CLOSE = 0x8,
+ WEBSOCKET_OPCODE_PING = 0x9,
+ WEBSOCKET_OPCODE_PONG = 0xa
};
+// Server management functions
+struct mg_server *mg_create_server(void *server_param, mg_handler_t handler);
+void mg_destroy_server(struct mg_server **);
+const char *mg_set_option(struct mg_server *, const char *opt, const char *val);
+int mg_poll_server(struct mg_server *, int milliseconds);
+const char **mg_get_valid_option_names(void);
+const char *mg_get_option(const struct mg_server *server, const char *name);
+void mg_set_listening_socket(struct mg_server *, int sock);
+int mg_get_listening_socket(struct mg_server *);
+void mg_iterate_over_connections(struct mg_server *, mg_handler_t, void *);
+void mg_wakeup_server(struct mg_server *);
+void mg_wakeup_server_ex(struct mg_server *, mg_handler_t, const char *, ...);
+struct mg_connection *mg_connect(struct mg_server *, const char *, int, int);
+
+// Connection management functions
+void mg_send_status(struct mg_connection *, int status_code);
+void mg_send_header(struct mg_connection *, const char *name, const char *val);
+void mg_send_data(struct mg_connection *, const void *data, int data_len);
+void mg_printf_data(struct mg_connection *, const char *format, ...);
+
+int mg_websocket_write(struct mg_connection *, int opcode,
+ const char *data, size_t data_len);
+int mg_websocket_printf(struct mg_connection* conn, int opcode,
+ const char *fmt, ...);
+
+// Deprecated in favor of mg_send_* interface
+int mg_write(struct mg_connection *, const void *buf, int len);
+int mg_printf(struct mg_connection *conn, const char *fmt, ...);
-// Macros for enabling compiler-specific checks for printf-like arguments.
-#undef PRINTF_FORMAT_STRING
-#if defined(_MSC_VER) && (_MSC_VER >= 1400)
-#include <sal.h>
-#if defined(_MSC_VER) && (_MSC_VER > 1400)
-#define PRINTF_FORMAT_STRING(s) _Printf_format_string_ s
-#else
-#define PRINTF_FORMAT_STRING(s) __format_string s
-#endif
-#else
-#define PRINTF_FORMAT_STRING(s) s
-#endif
-
-#ifdef __GNUC__
-#define PRINTF_ARGS(x, y) __attribute__((format(printf, x, y)))
-#else
-#define PRINTF_ARGS(x, y)
-#endif
-
-// Send data to the client using printf() semantics.
-//
-// Works exactly like mg_write(), but allows to do message formatting.
-int mg_printf(struct mg_connection *,
- PRINTF_FORMAT_STRING(const char *fmt), ...) PRINTF_ARGS(2, 3);
-
-
-// Send contents of the entire file together with HTTP headers.
-void mg_send_file(struct mg_connection *conn, const char *path);
-
-
-// Read data from the remote end, return number of bytes read.
-// Return:
-// 0 connection has been closed by peer. No more data could be read.
-// < 0 read error. No more data could be read from the connection.
-// > 0 number of bytes read into the buffer.
-int mg_read(struct mg_connection *, void *buf, size_t len);
-
-
-// Get the value of particular HTTP header.
-//
-// This is a helper function. It traverses request_info->http_headers array,
-// and if the header is present in the array, returns its value. If it is
-// not present, NULL is returned.
const char *mg_get_header(const struct mg_connection *, const char *name);
-
-
-// Get a value of particular form variable.
-//
-// Parameters:
-// data: pointer to form-uri-encoded buffer. This could be either POST data,
-// or request_info.query_string.
-// data_len: length of the encoded data.
-// var_name: variable name to decode from the buffer
-// dst: destination buffer for the decoded variable
-// dst_len: length of the destination buffer
-//
-// Return:
-// On success, length of the decoded variable.
-// On error:
-// -1 (variable not found).
-// -2 (destination buffer is NULL, zero length or too small to hold the
-// decoded variable).
-//
-// Destination buffer is guaranteed to be '\0' - terminated if it is not
-// NULL or zero length.
-int mg_get_var(const char *data, size_t data_len,
- const char *var_name, char *dst, size_t dst_len);
-
-// Fetch value of certain cookie variable into the destination buffer.
-//
-// Destination buffer is guaranteed to be '\0' - terminated. In case of
-// failure, dst[0] == '\0'. Note that RFC allows many occurrences of the same
-// parameter. This function returns only first occurrence.
-//
-// Return:
-// On success, value length.
-// On error:
-// -1 (either "Cookie:" header is not present at all or the requested
-// parameter is not found).
-// -2 (destination buffer is NULL, zero length or too small to hold the
-// value).
-int mg_get_cookie(const char *cookie, const char *var_name,
- char *buf, size_t buf_len);
-
-
-// Download data from the remote web server.
-// host: host name to connect to, e.g. "foo.com", or "10.12.40.1".
-// port: port number, e.g. 80.
-// use_ssl: wether to use SSL connection.
-// error_buffer, error_buffer_size: error message placeholder.
-// request_fmt,...: HTTP request.
-// Return:
-// On success, valid pointer to the new connection, suitable for mg_read().
-// On error, NULL. error_buffer contains error message.
-// Example:
-// char ebuf[100];
-// struct mg_connection *conn;
-// conn = mg_download("google.com", 80, 0, ebuf, sizeof(ebuf),
-// "%s", "GET / HTTP/1.0\r\nHost: google.com\r\n\r\n");
-struct mg_connection *mg_download(const char *host, int port, int use_ssl,
- char *error_buffer, size_t error_buffer_size,
- PRINTF_FORMAT_STRING(const char *request_fmt),
- ...) PRINTF_ARGS(6, 7);
-
-
-// Close the connection opened by mg_download().
-void mg_close_connection(struct mg_connection *conn);
-
-
-// File upload functionality. Each uploaded file gets saved into a temporary
-// file and MG_UPLOAD event is sent.
-// Return number of uploaded files.
-int mg_upload(struct mg_connection *conn, const char *destination_dir);
-
-
-// Convenience function -- create detached thread.
-// Return: 0 on success, non-0 on error.
-typedef void * (*mg_thread_func_t)(void *);
-int mg_start_thread(mg_thread_func_t f, void *p);
-
-
-// Return builtin mime type for the given file name.
-// For unrecognized extensions, "text/plain" is returned.
-const char *mg_get_builtin_mime_type(const char *file_name);
-
-
-// Return Mongoose version.
-const char *mg_version(void);
-
-// URL-decode input buffer into destination buffer.
-// 0-terminate the destination buffer.
-// form-url-encoded data differs from URI encoding in a way that it
-// uses '+' as character for space, see RFC 1866 section 8.2.1
-// http://ftp.ics.uci.edu/pub/ietf/html/rfc1866.txt
-// Return: length of the decoded data, or -1 if dst buffer is too small.
-int mg_url_decode(const char *src, int src_len, char *dst,
- int dst_len, int is_form_url_encoded);
-
-// MD5 hash given strings.
-// Buffer 'buf' must be 33 bytes long. Varargs is a NULL terminated list of
-// ASCIIz strings. When function returns, buf will contain human-readable
-// MD5 hash. Example:
-// char buf[33];
-// mg_md5(buf, "aa", "bb", NULL);
+const char *mg_get_mime_type(const char *name, const char *default_mime_type);
+int mg_get_var(const struct mg_connection *conn, const char *var_name,
+ char *buf, size_t buf_len);
+int mg_parse_header(const char *hdr, const char *var_name, char *buf, size_t);
+int mg_parse_multipart(const char *buf, int buf_len,
+ char *var_name, int var_name_len,
+ char *file_name, int file_name_len,
+ const char **data, int *data_len);
+
+// Utility functions
+void *mg_start_thread(void *(*func)(void *), void *param);
char *mg_md5(char buf[33], ...);
+int mg_authorize_digest(struct mg_connection *c, FILE *fp);
+int mg_url_encode(const char *src, size_t s_len, char *dst, size_t dst_len);
+int mg_url_decode(const char *src, int src_len, char *dst, int dst_len, int);
+
+// Templates support
+struct mg_expansion {
+ const char *keyword;
+ void (*handler)(struct mg_connection *);
+};
+void mg_template(struct mg_connection *, const char *text,
+ struct mg_expansion *expansions);
#ifdef __cplusplus