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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/http/http_network_layer.h"
#include "base/logging.h"
#include "base/string_util.h"
#include "net/http/http_network_session.h"
#include "net/http/http_network_transaction.h"
#include "net/socket/client_socket_factory.h"
#include "net/spdy/spdy_framer.h"
#include "net/spdy/spdy_network_transaction.h"
#include "net/spdy/spdy_session.h"
namespace net {
//-----------------------------------------------------------------------------
// static
HttpTransactionFactory* HttpNetworkLayer::CreateFactory(
NetworkChangeNotifier* network_change_notifier,
HostResolver* host_resolver,
ProxyService* proxy_service,
SSLConfigService* ssl_config_service,
HttpAuthHandlerFactory* http_auth_handler_factory) {
DCHECK(proxy_service);
return new HttpNetworkLayer(ClientSocketFactory::GetDefaultFactory(),
network_change_notifier,
host_resolver, proxy_service, ssl_config_service,
http_auth_handler_factory);
}
// static
HttpTransactionFactory* HttpNetworkLayer::CreateFactory(
HttpNetworkSession* session) {
DCHECK(session);
return new HttpNetworkLayer(session);
}
//-----------------------------------------------------------------------------
bool HttpNetworkLayer::force_spdy_ = false;
HttpNetworkLayer::HttpNetworkLayer(
ClientSocketFactory* socket_factory,
NetworkChangeNotifier* network_change_notifier,
HostResolver* host_resolver,
ProxyService* proxy_service,
SSLConfigService* ssl_config_service,
HttpAuthHandlerFactory* http_auth_handler_factory)
: socket_factory_(socket_factory),
network_change_notifier_(network_change_notifier),
host_resolver_(host_resolver),
proxy_service_(proxy_service),
ssl_config_service_(ssl_config_service),
session_(NULL),
http_auth_handler_factory_(http_auth_handler_factory),
suspended_(false) {
DCHECK(proxy_service_);
DCHECK(ssl_config_service_.get());
}
HttpNetworkLayer::HttpNetworkLayer(HttpNetworkSession* session)
: socket_factory_(ClientSocketFactory::GetDefaultFactory()),
network_change_notifier_(NULL),
ssl_config_service_(NULL),
session_(session),
http_auth_handler_factory_(NULL),
suspended_(false) {
DCHECK(session_.get());
}
HttpNetworkLayer::~HttpNetworkLayer() {
}
int HttpNetworkLayer::CreateTransaction(scoped_ptr<HttpTransaction>* trans) {
if (suspended_)
return ERR_NETWORK_IO_SUSPENDED;
if (force_spdy_)
trans->reset(new SpdyNetworkTransaction(GetSession()));
else
trans->reset(new HttpNetworkTransaction(GetSession()));
return OK;
}
HttpCache* HttpNetworkLayer::GetCache() {
return NULL;
}
void HttpNetworkLayer::Suspend(bool suspend) {
suspended_ = suspend;
if (suspend && session_)
session_->Flush();
}
HttpNetworkSession* HttpNetworkLayer::GetSession() {
if (!session_) {
DCHECK(proxy_service_);
session_ = new HttpNetworkSession(
network_change_notifier_, host_resolver_, proxy_service_,
socket_factory_, ssl_config_service_,
http_auth_handler_factory_);
// These were just temps for lazy-initializing HttpNetworkSession.
network_change_notifier_ = NULL;
host_resolver_ = NULL;
proxy_service_ = NULL;
socket_factory_ = NULL;
http_auth_handler_factory_ = NULL;
}
return session_;
}
// static
void HttpNetworkLayer::EnableSpdy(const std::string& mode) {
static const char kDisableSSL[] = "no-ssl";
static const char kDisableCompression[] = "no-compress";
static const char kEnableNPN[] = "npn";
std::vector<std::string> spdy_options;
SplitString(mode, ',', &spdy_options);
// Force spdy mode (use SpdyNetworkTransaction for all http requests).
force_spdy_ = true;
for (std::vector<std::string>::iterator it = spdy_options.begin();
it != spdy_options.end(); ++it) {
const std::string& option = *it;
// Disable SSL
if (option == kDisableSSL) {
SpdySession::SetSSLMode(false);
} else if (option == kDisableCompression) {
spdy::SpdyFramer::set_enable_compression_default(false);
} else if (option == kEnableNPN) {
HttpNetworkTransaction::SetNextProtos("\007http1.1\004spdy");
force_spdy_ = false;
} else if (option.empty() && it == spdy_options.begin()) {
continue;
} else {
LOG(DFATAL) << "Unrecognized spdy option: " << option;
}
}
}
} // namespace net
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