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Diffstat (limited to '3rdparty/asio/src/examples/cpp03/iostreams/http_client.cpp')
-rw-r--r--3rdparty/asio/src/examples/cpp03/iostreams/http_client.cpp91
1 files changed, 91 insertions, 0 deletions
diff --git a/3rdparty/asio/src/examples/cpp03/iostreams/http_client.cpp b/3rdparty/asio/src/examples/cpp03/iostreams/http_client.cpp
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index 00000000000..52ed241cb9f
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+++ b/3rdparty/asio/src/examples/cpp03/iostreams/http_client.cpp
@@ -0,0 +1,91 @@
+//
+// http_client.cpp
+// ~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <iostream>
+#include <istream>
+#include <ostream>
+#include <string>
+#include <asio/ip/tcp.hpp>
+
+using asio::ip::tcp;
+
+int main(int argc, char* argv[])
+{
+ try
+ {
+ if (argc != 3)
+ {
+ std::cout << "Usage: http_client <server> <path>\n";
+ std::cout << "Example:\n";
+ std::cout << " http_client www.boost.org /LICENSE_1_0.txt\n";
+ return 1;
+ }
+
+ asio::ip::tcp::iostream s;
+
+ // The entire sequence of I/O operations must complete within 60 seconds.
+ // If an expiry occurs, the socket is automatically closed and the stream
+ // becomes bad.
+ s.expires_after(asio::chrono::seconds(60));
+
+ // Establish a connection to the server.
+ s.connect(argv[1], "http");
+ if (!s)
+ {
+ std::cout << "Unable to connect: " << s.error().message() << "\n";
+ return 1;
+ }
+
+ // Send the request. We specify the "Connection: close" header so that the
+ // server will close the socket after transmitting the response. This will
+ // allow us to treat all data up until the EOF as the content.
+ s << "GET " << argv[2] << " HTTP/1.0\r\n";
+ s << "Host: " << argv[1] << "\r\n";
+ s << "Accept: */*\r\n";
+ s << "Connection: close\r\n\r\n";
+
+ // By default, the stream is tied with itself. This means that the stream
+ // automatically flush the buffered output before attempting a read. It is
+ // not necessary not explicitly flush the stream at this point.
+
+ // Check that response is OK.
+ std::string http_version;
+ s >> http_version;
+ unsigned int status_code;
+ s >> status_code;
+ std::string status_message;
+ std::getline(s, status_message);
+ if (!s || http_version.substr(0, 5) != "HTTP/")
+ {
+ std::cout << "Invalid response\n";
+ return 1;
+ }
+ if (status_code != 200)
+ {
+ std::cout << "Response returned with status code " << status_code << "\n";
+ return 1;
+ }
+
+ // Process the response headers, which are terminated by a blank line.
+ std::string header;
+ while (std::getline(s, header) && header != "\r")
+ std::cout << header << "\n";
+ std::cout << "\n";
+
+ // Write the remaining data to output.
+ std::cout << s.rdbuf();
+ }
+ catch (std::exception& e)
+ {
+ std::cout << "Exception: " << e.what() << "\n";
+ }
+
+ return 0;
+}