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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_stream_factory_impl.h"
#include "base/string_number_conversions.h"
#include "base/stl_util-inl.h"
#include "googleurl/src/gurl.h"
#include "net/base/net_log.h"
#include "net/base/net_util.h"
#include "net/http/http_network_session.h"
#include "net/http/http_stream_factory_impl_job.h"
#include "net/http/http_stream_factory_impl_request.h"
#include "net/spdy/spdy_http_stream.h"
namespace net {
namespace {
GURL UpgradeUrlToHttps(const GURL& original_url) {
GURL::Replacements replacements;
// new_sheme and new_port need to be in scope here because GURL::Replacements
// references the memory contained by them directly.
const std::string new_scheme = "https";
const std::string new_port = base::IntToString(443);
replacements.SetSchemeStr(new_scheme);
replacements.SetPortStr(new_port);
return original_url.ReplaceComponents(replacements);
}
} // namespace
HttpStreamFactoryImpl::HttpStreamFactoryImpl(HttpNetworkSession* session)
: session_(session) {}
HttpStreamFactoryImpl::~HttpStreamFactoryImpl() {
DCHECK(request_map_.empty());
DCHECK(spdy_session_request_map_.empty());
std::set<const Job*> tmp_job_set;
tmp_job_set.swap(orphaned_job_set_);
STLDeleteContainerPointers(tmp_job_set.begin(), tmp_job_set.end());
DCHECK(orphaned_job_set_.empty());
tmp_job_set.clear();
tmp_job_set.swap(preconnect_job_set_);
STLDeleteContainerPointers(tmp_job_set.begin(), tmp_job_set.end());
DCHECK(preconnect_job_set_.empty());
}
HttpStreamRequest* HttpStreamFactoryImpl::RequestStream(
const HttpRequestInfo& request_info,
const SSLConfig& ssl_config,
HttpStreamRequest::Delegate* delegate,
const BoundNetLog& net_log) {
Request* request = new Request(request_info.url, this, delegate, net_log);
GURL alternate_url;
bool has_alternate_protocol =
GetAlternateProtocolRequestFor(request_info.url, &alternate_url);
Job* alternate_job = NULL;
if (has_alternate_protocol) {
HttpRequestInfo alternate_request_info = request_info;
alternate_request_info.url = alternate_url;
alternate_job =
new Job(this, session_, alternate_request_info, ssl_config, net_log);
request->AttachJob(alternate_job);
alternate_job->MarkAsAlternate(request_info.url);
}
Job* job = new Job(this, session_, request_info, ssl_config, net_log);
request->AttachJob(job);
if (alternate_job) {
job->WaitFor(alternate_job);
// Make sure to wait until we call WaitFor(), before starting
// |alternate_job|, otherwise |alternate_job| will not notify |job|
// appropriately.
alternate_job->Start(request);
}
// Even if |alternate_job| has already finished, it won't have notified the
// request yet, since we defer that to the next iteration of the MessageLoop,
// so starting |job| is always safe.
job->Start(request);
return request;
}
void HttpStreamFactoryImpl::PreconnectStreams(
int num_streams,
const HttpRequestInfo& request_info,
const SSLConfig& ssl_config,
const BoundNetLog& net_log) {
GURL alternate_url;
bool has_alternate_protocol =
GetAlternateProtocolRequestFor(request_info.url, &alternate_url);
Job* job = NULL;
if (has_alternate_protocol) {
HttpRequestInfo alternate_request_info = request_info;
alternate_request_info.url = alternate_url;
job = new Job(this, session_, alternate_request_info, ssl_config, net_log);
job->MarkAsAlternate(request_info.url);
} else {
job = new Job(this, session_, request_info, ssl_config, net_log);
}
preconnect_job_set_.insert(job);
job->Preconnect(num_streams);
}
void HttpStreamFactoryImpl::AddTLSIntolerantServer(const HostPortPair& server) {
tls_intolerant_servers_.insert(server);
}
bool HttpStreamFactoryImpl::IsTLSIntolerantServer(
const HostPortPair& server) const {
return ContainsKey(tls_intolerant_servers_, server);
}
bool HttpStreamFactoryImpl::GetAlternateProtocolRequestFor(
const GURL& original_url,
GURL* alternate_url) const {
if (!spdy_enabled())
return false;
if (!use_alternate_protocols())
return false;
HostPortPair origin = HostPortPair(original_url.HostNoBrackets(),
original_url.EffectiveIntPort());
const HttpAlternateProtocols& alternate_protocols =
session_->alternate_protocols();
if (!alternate_protocols.HasAlternateProtocolFor(origin))
return false;
HttpAlternateProtocols::PortProtocolPair alternate =
alternate_protocols.GetAlternateProtocolFor(origin);
if (alternate.protocol == HttpAlternateProtocols::BROKEN)
return false;
DCHECK_LE(HttpAlternateProtocols::NPN_SPDY_1, alternate.protocol);
DCHECK_GT(HttpAlternateProtocols::NUM_ALTERNATE_PROTOCOLS,
alternate.protocol);
if (alternate.protocol != HttpAlternateProtocols::NPN_SPDY_2)
return false;
origin.set_port(alternate.port);
if (HttpStreamFactory::HasSpdyExclusion(origin))
return false;
*alternate_url = UpgradeUrlToHttps(original_url);
return true;
}
void HttpStreamFactoryImpl::OrphanJob(Job* job, const Request* request) {
DCHECK(ContainsKey(request_map_, job));
DCHECK_EQ(request_map_[job], request);
DCHECK(!ContainsKey(orphaned_job_set_, job));
request_map_.erase(job);
orphaned_job_set_.insert(job);
job->Orphan(request);
}
void HttpStreamFactoryImpl::OnSpdySessionReady(
scoped_refptr<SpdySession> spdy_session,
bool direct,
const SSLConfig& used_ssl_config,
const ProxyInfo& used_proxy_info,
bool was_npn_negotiated,
bool using_spdy,
const NetLog::Source& source) {
const HostPortProxyPair& spdy_session_key =
spdy_session->host_port_proxy_pair();
while (!spdy_session->IsClosed()) {
// Each iteration may empty out the RequestSet for |spdy_session_key_ in
// |spdy_session_request_map_|. So each time, check for RequestSet and use
// the first one.
//
// TODO(willchan): If it's important, switch RequestSet out for a FIFO
// pqueue (Order by priority first, then FIFO within same priority). Unclear
// that it matters here.
if (!ContainsKey(spdy_session_request_map_, spdy_session_key))
break;
Request* request = *spdy_session_request_map_[spdy_session_key].begin();
request->Complete(was_npn_negotiated,
using_spdy,
source);
bool use_relative_url = direct || request->url().SchemeIs("https");
request->OnStreamReady(NULL, used_ssl_config, used_proxy_info,
new SpdyHttpStream(spdy_session, use_relative_url));
}
// TODO(mbelshe): Alert other valid requests.
}
void HttpStreamFactoryImpl::OnOrphanedJobComplete(const Job* job) {
orphaned_job_set_.erase(job);
delete job;
}
void HttpStreamFactoryImpl::OnPreconnectsComplete(const Job* job) {
preconnect_job_set_.erase(job);
delete job;
OnPreconnectsCompleteInternal();
}
} // namespace net
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