nghttp2/examples/asio-cl.cc

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/*
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2015 Tatsuhiro Tsujikawa
*
* 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:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* 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.
*/
#include <iostream>
#include <nghttp2/asio_http2_client.h>
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using boost::asio::ip::tcp;
using namespace nghttp2::asio_http2;
using namespace nghttp2::asio_http2::client;
int main(int argc, char *argv[]) {
try {
if (argc < 2) {
std::cerr << "Usage: asio-cl URI" << std::endl;
return 1;
}
boost::system::error_code ec;
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boost::asio::io_service io_service;
std::string uri = argv[1];
std::string scheme, host, service;
if (host_service_from_uri(ec, scheme, host, service, uri)) {
std::cerr << "error: bad URI: " << ec.message() << std::endl;
return 1;
}
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boost::asio::ssl::context tls_ctx(boost::asio::ssl::context::sslv23);
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tls_ctx.set_default_verify_paths();
// disabled to make development easier...
// tls_ctx.set_verify_mode(boost::asio::ssl::verify_peer);
configure_tls_context(ec, tls_ctx);
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auto sess = scheme == "https" ? session(io_service, tls_ctx, host, service)
: session(io_service, host, service);
sess.on_connect([&sess, &uri](tcp::resolver::iterator endpoint_it) {
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boost::system::error_code ec;
auto req = sess.submit(ec, "GET", uri);
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if (ec) {
std::cerr << "error: " << ec.message() << std::endl;
return;
}
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req->on_response([&sess, req](const response &res) {
std::cerr << "HTTP/2 " << res.status_code() << std::endl;
for (auto &kv : res.header()) {
std::cerr << kv.first << ": " << kv.second.value << "\n";
}
std::cerr << std::endl;
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res.on_data([&sess](const uint8_t *data, std::size_t len) {
if (len == 0) {
// eof
sess.shutdown();
return;
}
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std::cerr.write(reinterpret_cast<const char *>(data), len);
std::cerr << std::endl;
});
});
});
sess.on_error([](const boost::system::error_code &ec) {
std::cerr << "error: " << ec.message() << std::endl;
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});
io_service.run();
} catch (std::exception &e) {
std::cerr << "exception: " << e.what() << "\n";
}
return 0;
}