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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.h"
#include "base/stl_util-inl.h"
#include "base/string_number_conversions.h"
#include "base/string_split.h"
#include "base/string_util.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_request.h"
namespace net {
// static
const HostMappingRules* HttpStreamFactory::host_mapping_rules_ = NULL;
// static
const std::string* HttpStreamFactory::next_protos_ = NULL;
// static
bool HttpStreamFactory::spdy_enabled_ = true;
// static
bool HttpStreamFactory::use_alternate_protocols_ = false;
// static
bool HttpStreamFactory::force_spdy_over_ssl_ = true;
// static
bool HttpStreamFactory::force_spdy_always_ = false;
// static
bool HttpStreamFactory::ignore_certificate_errors_ = false;
// static
void HttpStreamFactory::SetHostMappingRules(const std::string& rules) {
HostMappingRules* host_mapping_rules = new HostMappingRules();
host_mapping_rules->SetRulesFromString(rules);
delete host_mapping_rules_;
host_mapping_rules_ = host_mapping_rules;
}
HttpStreamFactory::HttpStreamFactory() {
}
HttpStreamFactory::~HttpStreamFactory() {
RequestCallbackMap request_callback_map;
request_callback_map.swap(request_callback_map_);
for (RequestCallbackMap::iterator it = request_callback_map.begin();
it != request_callback_map.end(); ++it) {
delete it->first;
// We don't invoke the callback in the destructor.
}
}
StreamRequest* HttpStreamFactory::RequestStream(
const HttpRequestInfo* request_info,
SSLConfig* ssl_config,
ProxyInfo* proxy_info,
HttpNetworkSession* session,
StreamRequest::Delegate* delegate,
const BoundNetLog& net_log) {
HttpStreamRequest* stream = new HttpStreamRequest(this, session);
stream->Start(request_info, ssl_config, proxy_info, delegate, net_log);
return stream;
}
int HttpStreamFactory::PreconnectStreams(
int num_streams,
const HttpRequestInfo* request_info,
SSLConfig* ssl_config,
ProxyInfo* proxy_info,
HttpNetworkSession* session,
const BoundNetLog& net_log,
CompletionCallback* callback) {
HttpStreamRequest* stream = new HttpStreamRequest(this, session);
int rv = stream->Preconnect(num_streams, request_info, ssl_config,
proxy_info, this, net_log);
DCHECK_EQ(ERR_IO_PENDING, rv);
request_callback_map_[stream] = callback;
return rv;
}
void HttpStreamFactory::AddTLSIntolerantServer(const GURL& url) {
tls_intolerant_servers_.insert(GetHostAndPort(url));
}
bool HttpStreamFactory::IsTLSIntolerantServer(const GURL& url) {
return ContainsKey(tls_intolerant_servers_, GetHostAndPort(url));
}
void HttpStreamFactory::ProcessAlternateProtocol(
HttpAlternateProtocols* alternate_protocols,
const std::string& alternate_protocol_str,
const HostPortPair& http_host_port_pair) {
std::vector<std::string> port_protocol_vector;
base::SplitString(alternate_protocol_str, ':', &port_protocol_vector);
if (port_protocol_vector.size() != 2) {
DLOG(WARNING) << HttpAlternateProtocols::kHeader
<< " header has too many tokens: "
<< alternate_protocol_str;
return;
}
int port;
if (!base::StringToInt(port_protocol_vector[0], &port) ||
port <= 0 || port >= 1 << 16) {
DLOG(WARNING) << HttpAlternateProtocols::kHeader
<< " header has unrecognizable port: "
<< port_protocol_vector[0];
return;
}
HttpAlternateProtocols::Protocol protocol = HttpAlternateProtocols::BROKEN;
// We skip NPN_SPDY_1 here, because we've rolled the protocol version to 2.
for (int i = HttpAlternateProtocols::NPN_SPDY_2;
i < HttpAlternateProtocols::NUM_ALTERNATE_PROTOCOLS; ++i) {
if (port_protocol_vector[1] == HttpAlternateProtocols::kProtocolStrings[i])
protocol = static_cast<HttpAlternateProtocols::Protocol>(i);
}
if (protocol == HttpAlternateProtocols::BROKEN) {
// Currently, we only recognize the npn-spdy protocol.
DLOG(WARNING) << HttpAlternateProtocols::kHeader
<< " header has unrecognized protocol: "
<< port_protocol_vector[1];
return;
}
HostPortPair host_port(http_host_port_pair);
if (host_mapping_rules_)
host_mapping_rules_->RewriteHost(&host_port);
if (alternate_protocols->HasAlternateProtocolFor(host_port)) {
const HttpAlternateProtocols::PortProtocolPair existing_alternate =
alternate_protocols->GetAlternateProtocolFor(host_port);
// If we think the alternate protocol is broken, don't change it.
if (existing_alternate.protocol == HttpAlternateProtocols::BROKEN)
return;
}
alternate_protocols->SetAlternateProtocolFor(host_port, port, protocol);
}
GURL HttpStreamFactory::ApplyHostMappingRules(const GURL& url,
HostPortPair* endpoint) {
if (host_mapping_rules_ && host_mapping_rules_->RewriteHost(endpoint)) {
url_canon::Replacements<char> replacements;
const std::string port_str = base::IntToString(endpoint->port());
replacements.SetPort(port_str.c_str(),
url_parse::Component(0, port_str.size()));
replacements.SetHost(endpoint->host().c_str(),
url_parse::Component(0, endpoint->host().size()));
return url.ReplaceComponents(replacements);
}
return url;
}
void HttpStreamFactory::OnPreconnectsComplete(
HttpStreamRequest* request, int result) {
RequestCallbackMap::iterator it = request_callback_map_.find(request);
DCHECK(it != request_callback_map_.end());
CompletionCallback* callback = it->second;
request_callback_map_.erase(it);
delete request;
callback->Run(result);
}
} // namespace net
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