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WebCC/webcc/http_client_session.cc

118 lines
3.3 KiB
C++

#include "webcc/http_client_session.h"
#include "webcc/url.h"
namespace webcc {
HttpClientSession::HttpClientSession() {
InitHeaders();
}
HttpResponsePtr HttpClientSession::Request(HttpRequestArgs&& args) {
assert(args.parameters_.size() % 2 == 0);
assert(args.headers_.size() % 2 == 0);
HttpRequest request{ args.method_, args.url_ };
for (std::size_t i = 1; i < args.parameters_.size(); i += 2) {
request.AddParameter(args.parameters_[i - 1], args.parameters_[i]);
}
if (!args.data_.empty()) {
request.SetContent(std::move(args.data_), true);
// TODO: Request-level charset.
if (args.json_) {
request.SetContentType(http::media_types::kApplicationJson, charset_);
} else if (!content_type_.empty()) {
request.SetContentType(content_type_, charset_);
}
}
// Apply the session-level headers.
for (const HttpHeader& h : headers_.data()) {
request.SetHeader(h.first, h.second);
}
// Apply the request-level headers.
// This will overwrite the session-level headers.
for (std::size_t i = 1; i < args.headers_.size(); i += 2) {
request.SetHeader(std::move(args.headers_[i - 1]),
std::move(args.headers_[i]));
}
request.Prepare();
// Determine SSL verify flag.
bool ssl_verify = true;
if (args.ssl_verify_) {
ssl_verify = args.ssl_verify_.value();
} else if (ssl_verify_) {
ssl_verify = ssl_verify_.value();
}
bool reuse = false;
const HttpClientPool::Key key{ request.url() };
HttpClientPtr client = pool_.Get(key);
if (!client) {
client.reset(new HttpClient{ 0, ssl_verify });
reuse = false;
} else {
// TODO: Apply args.ssl_verify even if reuse a client.
reuse = false;
LOG_VERB("Reuse an existing connection.");
}
if (!client->Request(request, args.buffer_size_, !reuse)) {
throw Exception(client->error(), client->timed_out());
}
// Update pool.
if (reuse) {
if (client->closed()) {
pool_.Remove(key);
}
} else {
if (!client->closed()) {
pool_.Add(key, client);
}
}
return client->response();
}
HttpResponsePtr HttpClientSession::Get(const std::string& url,
std::vector<std::string>&& parameters,
std::vector<std::string>&& headers,
HttpRequestArgs&& args) {
return Request(args.method(http::kGet)
.url(url)
.parameters(std::move(parameters))
.headers(std::move(headers)));
}
HttpResponsePtr HttpClientSession::Post(const std::string& url,
std::string&& data, bool json,
std::vector<std::string>&& headers,
HttpRequestArgs&& args) {
return Request(args.method(http::kPost)
.url(url)
.data(std::move(data))
.json(json)
.headers(std::move(headers)));
}
void HttpClientSession::InitHeaders() {
headers_.Add(http::headers::kUserAgent, http::UserAgent());
// TODO: Support gzip, deflate
headers_.Add(http::headers::kAcceptEncoding, "identity");
headers_.Add(http::headers::kAccept, "*/*");
headers_.Add(http::headers::kConnection, "Keep-Alive");
}
} // namespace webcc