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HttpClient.cc
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136 lines (116 loc) · 3.36 KB
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/*
* Copyright (C) 2021 Frank Mertens.
*
* Distribution and use is allowed under the terms of the GNU General Public License version 3
* (see CoreComponents/LICENSE-gpl-3.0).
*
*/
#include <cc/HttpClient>
#include <cc/HttpResponseParser>
#include <cc/TlsClientStream>
#include <cc/HttpStream>
#include <cc/TapBuffer>
#include <cc/ClientSocket>
#include <cc/Uri>
#include <cc/StreamTap>
#include <cc/KernelInfo>
namespace cc {
struct HttpClient::State: public Object::State
{
State(const Uri &uri, const TlsClientOptions &tlsOptions):
address_{uri.resolve()},
host_{uri.host()}
{
const bool useTls = !(
uri.scheme() == "http" ||
(uri.scheme() == "" && (uri.port() == 80 || uri.port() == 8080))
);
if (uri.port() <= 0) {
address_.setPort(useTls ? 443 : 80);
}
initiate(useTls, tlsOptions);
}
State(const SocketAddress &address, const TlsClientOptions &tlsOptions):
address_{address},
host_{address.networkAddress()}
{
const bool useTls = !(address.port() == 80 || address.port() == 8080);
initiate(useTls, tlsOptions);
}
~State()
{
try {
parser_ = HttpResponseParser{};
stream_ = Stream{};
socket_.shutdown();
}
catch (...)
{}
}
void initiate(bool useTls, TlsClientOptions tlsOptions)
{
socket_ = ClientSocket{address_};
stream_ = socket_;
if (useTls) {
TlsClientOptions options = tlsOptions;
if (options.serverName() == "") options.setServerName(host_);
stream_ = TlsClientStream{stream_, options};
}
parser_ = HttpResponseParser{stream_};
}
HttpResponse query(const String &method, const String &path, const Generate &generate)
{
HttpRequestGenerator request{stream_};
request.setMethod(method);
request.setHost(host_);
request.setPath(path != "" ? path : "/");
request.setHeader("User-Agent", userAgent());
generate(request);
return parser_.readResponse();
}
static String userAgent()
{
KernelInfo kernel;
static String info =
Format{"cc_http 1.0 (%%; %%)"}
<< kernel.name()
<< kernel.machine();
return info;
}
static void generateDefault(HttpMessageGenerator &request)
{
request.transmit();
}
SocketAddress address_;
String host_;
ClientSocket socket_;
Stream stream_;
HttpResponseParser parser_;
};
HttpClient::HttpClient(const Uri &uri, const TlsClientOptions &tlsOptions):
Object{new State{uri, tlsOptions}}
{}
HttpClient::HttpClient(const SocketAddress &address, const TlsClientOptions &tlsOptions):
Object{new State{address, tlsOptions}}
{}
SocketAddress HttpClient::address() const
{
return me().address_;
}
bool HttpClient::waitEstablished(int timeout)
{
return me().stream_.waitEstablished(timeout);
}
HttpResponse HttpClient::query(const String &method, const String &path, const Generate &generate)
{
return me().query(method, path, generate ? generate : HttpClient::State::generateDefault);
}
HttpClient::State &HttpClient::me()
{
return Object::me.as<State>();
}
const HttpClient::State &HttpClient::me() const
{
return Object::me.as<State>();
}
} // namespace cc