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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/socket/client_socket_factory.h"
#include "base/lazy_instance.h"
#include "build/build_config.h"
#include "net/base/cert_database.h"
#include "net/socket/client_socket_handle.h"
#if defined(OS_WIN)
#include "net/socket/ssl_client_socket_nss.h"
#include "net/socket/ssl_client_socket_win.h"
#elif defined(USE_OPENSSL)
#include "net/socket/ssl_client_socket_openssl.h"
#elif defined(USE_NSS)
#include "net/socket/ssl_client_socket_nss.h"
#elif defined(OS_MACOSX)
#include "net/socket/ssl_client_socket_mac.h"
#include "net/socket/ssl_client_socket_nss.h"
#endif
#include "net/socket/ssl_host_info.h"
#include "net/socket/tcp_client_socket.h"
#include "net/udp/udp_client_socket.h"
namespace net {
class X509Certificate;
namespace {
bool g_use_system_ssl = false;
class DefaultClientSocketFactory : public ClientSocketFactory,
public CertDatabase::Observer {
public:
DefaultClientSocketFactory() {
CertDatabase::AddObserver(this);
}
virtual ~DefaultClientSocketFactory() {
CertDatabase::RemoveObserver(this);
}
virtual void OnUserCertAdded(const X509Certificate* cert) {
ClearSSLSessionCache();
}
virtual void OnCertTrustChanged(const X509Certificate* cert) {
// Per wtc, we actually only need to flush when trust is reduced.
// Always flush now because OnCertTrustChanged does not tell us this.
// See comments in ClientSocketPoolManager::OnCertTrustChanged.
ClearSSLSessionCache();
}
virtual DatagramClientSocket* CreateDatagramClientSocket(
DatagramSocket::BindType bind_type,
const RandIntCallback& rand_int_cb,
NetLog* net_log,
const NetLog::Source& source) {
return new UDPClientSocket(bind_type, rand_int_cb, net_log, source);
}
virtual StreamSocket* CreateTransportClientSocket(
const AddressList& addresses,
NetLog* net_log,
const NetLog::Source& source) {
return new TCPClientSocket(addresses, net_log, source);
}
virtual SSLClientSocket* CreateSSLClientSocket(
ClientSocketHandle* transport_socket,
const HostPortPair& host_and_port,
const SSLConfig& ssl_config,
SSLHostInfo* ssl_host_info,
const SSLClientSocketContext& context) {
scoped_ptr<SSLHostInfo> shi(ssl_host_info);
#if defined(OS_WIN)
if (g_use_system_ssl) {
return new SSLClientSocketWin(transport_socket, host_and_port,
ssl_config, context);
}
return new SSLClientSocketNSS(transport_socket, host_and_port, ssl_config,
shi.release(), context);
#elif defined(USE_OPENSSL)
return new SSLClientSocketOpenSSL(transport_socket, host_and_port,
ssl_config, context);
#elif defined(USE_NSS)
return new SSLClientSocketNSS(transport_socket, host_and_port, ssl_config,
shi.release(), context);
#elif defined(OS_MACOSX)
if (g_use_system_ssl) {
return new SSLClientSocketMac(transport_socket, host_and_port,
ssl_config, context);
}
return new SSLClientSocketNSS(transport_socket, host_and_port, ssl_config,
shi.release(), context);
#else
NOTIMPLEMENTED();
return NULL;
#endif
}
void ClearSSLSessionCache() {
SSLClientSocket::ClearSessionCache();
}
};
static base::LazyInstance<DefaultClientSocketFactory>
g_default_client_socket_factory = LAZY_INSTANCE_INITIALIZER;
} // namespace
// Deprecated function (http://crbug.com/37810) that takes a StreamSocket.
SSLClientSocket* ClientSocketFactory::CreateSSLClientSocket(
StreamSocket* transport_socket,
const HostPortPair& host_and_port,
const SSLConfig& ssl_config,
SSLHostInfo* ssl_host_info,
const SSLClientSocketContext& context) {
ClientSocketHandle* socket_handle = new ClientSocketHandle();
socket_handle->set_socket(transport_socket);
return CreateSSLClientSocket(socket_handle, host_and_port, ssl_config,
ssl_host_info, context);
}
// static
ClientSocketFactory* ClientSocketFactory::GetDefaultFactory() {
return g_default_client_socket_factory.Pointer();
}
// static
void ClientSocketFactory::UseSystemSSL() {
g_use_system_ssl = true;
#if defined(OS_WIN)
// Reflect the capability of SSLClientSocketWin.
SSLConfigService::SetDefaultVersionMax(SSL_PROTOCOL_VERSION_TLS1);
#elif defined(OS_MACOSX)
// Reflect the capability of SSLClientSocketMac.
SSLConfigService::SetDefaultVersionMax(SSL_PROTOCOL_VERSION_TLS1);
#endif
}
} // namespace net
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