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// Copyright (c) 2012 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/logging.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "net/base/host_mapping_rules.h"
#include "net/base/host_port_pair.h"
#include "net/http/http_network_session.h"
#include "url/gurl.h"
namespace net {
// WARNING: If you modify or add any static flags, you must keep them in sync
// with |ResetStaticSettingsToInit|. This is critical for unit test isolation.
// static
bool HttpStreamFactory::spdy_enabled_ = true;
HttpStreamFactory::~HttpStreamFactory() {}
// static
void HttpStreamFactory::ResetStaticSettingsToInit() {
spdy_enabled_ = true;
}
void HttpStreamFactory::ProcessAlternateProtocol(
const base::WeakPtr<HttpServerProperties>& http_server_properties,
const std::vector<std::string>& alternate_protocol_values,
const HostPortPair& http_host_port_pair,
const HttpNetworkSession& session) {
AlternateProtocol protocol = UNINITIALIZED_ALTERNATE_PROTOCOL;
int port = 0;
double probability = 1;
for (size_t i = 0; i < alternate_protocol_values.size(); ++i) {
const std::string& alternate_protocol_str = alternate_protocol_values[i];
if (StartsWithASCII(alternate_protocol_str, "p=", true)) {
if (!base::StringToDouble(alternate_protocol_str.substr(2),
&probability) ||
probability < 0 || probability > 1) {
DVLOG(1) << kAlternateProtocolHeader
<< " header has unrecognizable probability: "
<< alternate_protocol_values[i];
return;
}
continue;
}
std::vector<std::string> port_protocol_vector;
base::SplitString(alternate_protocol_str, ':', &port_protocol_vector);
if (port_protocol_vector.size() != 2) {
DVLOG(1) << kAlternateProtocolHeader
<< " header has too many tokens: "
<< alternate_protocol_str;
return;
}
if (!base::StringToInt(port_protocol_vector[0], &port) ||
port <= 0 || port >= 1 << 16) {
DVLOG(1) << kAlternateProtocolHeader
<< " header has unrecognizable port: "
<< port_protocol_vector[0];
return;
}
protocol = AlternateProtocolFromString(port_protocol_vector[1]);
if (IsAlternateProtocolValid(protocol) &&
!session.IsProtocolEnabled(protocol)) {
DVLOG(1) << kAlternateProtocolHeader
<< " header has unrecognized protocol: "
<< port_protocol_vector[1];
return;
}
}
if (protocol == UNINITIALIZED_ALTERNATE_PROTOCOL)
return;
HostPortPair host_port(http_host_port_pair);
const HostMappingRules* mapping_rules = GetHostMappingRules();
if (mapping_rules)
mapping_rules->RewriteHost(&host_port);
if (http_server_properties->HasAlternateProtocol(host_port)) {
const AlternateProtocolInfo existing_alternate =
http_server_properties->GetAlternateProtocol(host_port);
// If we think the alternate protocol is broken, don't change it.
if (existing_alternate.is_broken)
return;
}
http_server_properties->SetAlternateProtocol(host_port, port, protocol,
probability);
}
GURL HttpStreamFactory::ApplyHostMappingRules(const GURL& url,
HostPortPair* endpoint) {
const HostMappingRules* mapping_rules = GetHostMappingRules();
if (mapping_rules && mapping_rules->RewriteHost(endpoint)) {
url::Replacements<char> replacements;
const std::string port_str = base::IntToString(endpoint->port());
replacements.SetPort(port_str.c_str(), url::Component(0, port_str.size()));
replacements.SetHost(endpoint->host().c_str(),
url::Component(0, endpoint->host().size()));
return url.ReplaceComponents(replacements);
}
return url;
}
HttpStreamFactory::HttpStreamFactory() {}
} // namespace net
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