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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/http/http_basic_state.h"
#include <set>
#include <utility>
#include "base/check_op.h"
#include "base/no_destructor.h"
#include "net/base/io_buffer.h"
#include "net/base/ip_endpoint.h"
#include "net/base/load_timing_info.h"
#include "net/base/net_errors.h"
#include "net/http/http_request_info.h"
#include "net/http/http_response_body_drainer.h"
#include "net/http/http_stream_parser.h"
#include "net/http/http_util.h"
#include "net/socket/stream_socket.h"
#include "net/socket/stream_socket_handle.h"
#include "net/ssl/ssl_info.h"
#include "url/gurl.h"
namespace net {
HttpBasicState::HttpBasicState(std::unique_ptr<StreamSocketHandle> connection,
bool is_for_get_to_http_proxy)
: read_buf_(base::MakeRefCounted<GrowableIOBuffer>()),
connection_(std::move(connection)),
is_for_get_to_http_proxy_(is_for_get_to_http_proxy) {
CHECK(connection_) << "StreamSocketHandle passed to HttpBasicState must "
"not be NULL. See crbug.com/790776";
}
HttpBasicState::~HttpBasicState() = default;
void HttpBasicState::Initialize(const HttpRequestInfo* request_info,
RequestPriority priority,
const NetLogWithSource& net_log) {
DCHECK(!parser_.get());
traffic_annotation_ = request_info->traffic_annotation;
parser_ = std::make_unique<HttpStreamParser>(
connection_->socket(),
connection_->reuse_type() ==
StreamSocketHandle::SocketReuseType::kReusedIdle,
request_info->url, request_info->method, request_info->upload_data_stream,
read_buf_.get(), net_log);
}
void HttpBasicState::Close(bool not_reusable) {
// `parser_` is null if the owner of `this` is created by an orphaned
// HttpStreamFactory::Job in which case InitializeStream() will not have been
// called. This also protects against null dereference in the case where
// ReleaseConnection() has been called.
//
// TODO(mmenke): Can these cases be handled a bit more cleanly?
if (!parser_) {
return;
}
StreamSocket* socket = connection_->socket();
if (not_reusable && socket) {
socket->Disconnect();
}
parser()->OnConnectionClose();
connection_->Reset();
}
std::unique_ptr<StreamSocketHandle> HttpBasicState::ReleaseConnection() {
// The HttpStreamParser object still has a pointer to the connection. Just to
// be extra-sure it doesn't touch the connection again, delete it here rather
// than leaving it until the destructor is called.
parser_.reset();
return std::move(connection_);
}
scoped_refptr<GrowableIOBuffer> HttpBasicState::read_buf() const {
return read_buf_;
}
std::string HttpBasicState::GenerateRequestLine() const {
return HttpUtil::GenerateRequestLine(parser_->method(), parser_->url(),
is_for_get_to_http_proxy_);
}
bool HttpBasicState::IsConnectionReused() const {
return connection_->reuse_type() ==
StreamSocketHandle::SocketReuseType::kReusedIdle ||
connection_->reuse_type() ==
StreamSocketHandle::SocketReuseType::kUnusedIdle;
}
void HttpBasicState::SetConnectionReused() {
connection_->set_reuse_type(StreamSocketHandle::SocketReuseType::kReusedIdle);
}
bool HttpBasicState::CanReuseConnection() const {
return parser_ && connection_->socket() && parser_->CanReuseConnection();
}
bool HttpBasicState::GetLoadTimingInfo(LoadTimingInfo* load_timing_info) const {
return connection_->GetLoadTimingInfo(IsConnectionReused(), load_timing_info);
}
void HttpBasicState::GetSSLInfo(SSLInfo* ssl_info) {
CHECK(connection_);
if (!connection_->socket() || !connection_->socket()->GetSSLInfo(ssl_info)) {
*ssl_info = SSLInfo();
}
}
int HttpBasicState::GetRemoteEndpoint(IPEndPoint* endpoint) {
if (!connection_ || !connection_->socket()) {
return ERR_SOCKET_NOT_CONNECTED;
}
return connection_->socket()->GetPeerAddress(endpoint);
}
const std::set<std::string>& HttpBasicState::GetDnsAliases() const {
static const base::NoDestructor<std::set<std::string>> emptyset_result;
return (connection_ && connection_->socket())
? connection_->socket()->GetDnsAliases()
: *emptyset_result;
}
} // namespace net
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