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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_session.h"
#include <utility>
#include "base/logging.h"
#include "base/stl_util-inl.h"
#include "base/string_util.h"
#include "net/http/http_auth_handler_factory.h"
#include "net/http/url_security_manager.h"
#include "net/spdy/spdy_session_pool.h"
namespace net {
namespace {
// Total limit of sockets.
int g_max_sockets = 256;
// Default to allow up to 6 connections per host. Experiment and tuning may
// try other values (greater than 0). Too large may cause many problems, such
// as home routers blocking the connections!?!? See http://crbug.com/12066.
int g_max_sockets_per_group = 6;
// The max number of sockets to allow per proxy server. This applies both to
// http and SOCKS proxies. See http://crbug.com/12066 and
// http://crbug.com/44501 for details about proxy server connection limits.
int g_max_sockets_per_proxy_server = 32;
} // namespace
// TODO(mbelshe): Move the socket factories into HttpStreamFactory.
HttpNetworkSession::HttpNetworkSession(
HostResolver* host_resolver,
ProxyService* proxy_service,
ClientSocketFactory* client_socket_factory,
SSLConfigService* ssl_config_service,
SpdySessionPool* spdy_session_pool,
HttpAuthHandlerFactory* http_auth_handler_factory,
HttpNetworkDelegate* network_delegate,
NetLog* net_log)
: tcp_pool_histograms_(new ClientSocketPoolHistograms("TCP")),
tcp_for_http_proxy_pool_histograms_(
new ClientSocketPoolHistograms("TCPforHTTPProxy")),
http_proxy_pool_histograms_(new ClientSocketPoolHistograms("HTTPProxy")),
tcp_for_https_proxy_pool_histograms_(
new ClientSocketPoolHistograms("TCPforHTTPSProxy")),
ssl_for_https_proxy_pool_histograms_(
new ClientSocketPoolHistograms("SSLforHTTPSProxy")),
tcp_for_socks_pool_histograms_(
new ClientSocketPoolHistograms("TCPforSOCKS")),
socks_pool_histograms_(new ClientSocketPoolHistograms("SOCK")),
ssl_pool_histograms_(new ClientSocketPoolHistograms("SSL")),
tcp_socket_pool_(new TCPClientSocketPool(
g_max_sockets, g_max_sockets_per_group, tcp_pool_histograms_,
host_resolver, client_socket_factory, net_log)),
ssl_socket_pool_(new SSLClientSocketPool(
g_max_sockets, g_max_sockets_per_group, ssl_pool_histograms_,
host_resolver, client_socket_factory, tcp_socket_pool_, NULL,
NULL, net_log)),
socket_factory_(client_socket_factory),
host_resolver_(host_resolver),
proxy_service_(proxy_service),
ssl_config_service_(ssl_config_service),
spdy_session_pool_(spdy_session_pool),
http_stream_factory_(new HttpStreamFactory()),
http_auth_handler_factory_(http_auth_handler_factory),
network_delegate_(network_delegate),
net_log_(net_log) {
DCHECK(proxy_service);
DCHECK(ssl_config_service);
}
HttpNetworkSession::~HttpNetworkSession() {
}
const scoped_refptr<HttpProxyClientSocketPool>&
HttpNetworkSession::GetSocketPoolForHTTPProxy(const HostPortPair& http_proxy) {
HTTPProxySocketPoolMap::const_iterator it =
http_proxy_socket_pools_.find(http_proxy);
if (it != http_proxy_socket_pools_.end())
return it->second;
std::pair<HTTPProxySocketPoolMap::iterator, bool> ret =
http_proxy_socket_pools_.insert(
std::make_pair(
http_proxy,
new HttpProxyClientSocketPool(
g_max_sockets_per_proxy_server, g_max_sockets_per_group,
http_proxy_pool_histograms_, host_resolver_,
new TCPClientSocketPool(
g_max_sockets_per_proxy_server, g_max_sockets_per_group,
tcp_for_http_proxy_pool_histograms_, host_resolver_,
socket_factory_, net_log_),
new SSLClientSocketPool(
g_max_sockets_per_proxy_server, g_max_sockets_per_group,
ssl_for_https_proxy_pool_histograms_, host_resolver_,
socket_factory_,
new TCPClientSocketPool(
g_max_sockets_per_proxy_server,
g_max_sockets_per_group,
tcp_for_https_proxy_pool_histograms_, host_resolver_,
socket_factory_, net_log_),
NULL, NULL, net_log_),
net_log_)));
return ret.first->second;
}
const scoped_refptr<SOCKSClientSocketPool>&
HttpNetworkSession::GetSocketPoolForSOCKSProxy(
const HostPortPair& socks_proxy) {
SOCKSSocketPoolMap::const_iterator it = socks_socket_pools_.find(socks_proxy);
if (it != socks_socket_pools_.end())
return it->second;
std::pair<SOCKSSocketPoolMap::iterator, bool> ret =
socks_socket_pools_.insert(
std::make_pair(socks_proxy, new SOCKSClientSocketPool(
g_max_sockets_per_proxy_server, g_max_sockets_per_group,
socks_pool_histograms_, host_resolver_,
new TCPClientSocketPool(g_max_sockets_per_proxy_server,
g_max_sockets_per_group, tcp_for_socks_pool_histograms_,
host_resolver_, socket_factory_, net_log_),
net_log_)));
return ret.first->second;
}
const scoped_refptr<SSLClientSocketPool>&
HttpNetworkSession::GetSocketPoolForSSLWithProxy(
const HostPortPair& proxy_server) {
SSLSocketPoolMap::const_iterator it =
ssl_socket_pools_for_proxies_.find(proxy_server);
if (it != ssl_socket_pools_for_proxies_.end())
return it->second;
SSLClientSocketPool* new_pool = new SSLClientSocketPool(
g_max_sockets_per_proxy_server, g_max_sockets_per_group,
ssl_pool_histograms_, host_resolver_, socket_factory_,
NULL,
GetSocketPoolForHTTPProxy(proxy_server),
GetSocketPoolForSOCKSProxy(proxy_server),
net_log_);
std::pair<SSLSocketPoolMap::iterator, bool> ret =
ssl_socket_pools_for_proxies_.insert(std::make_pair(proxy_server,
new_pool));
return ret.first->second;
}
// static
int HttpNetworkSession::max_sockets_per_group() {
return g_max_sockets_per_group;
}
// static
void HttpNetworkSession::set_max_sockets_per_group(int socket_count) {
DCHECK_LT(0, socket_count);
// The following is a sanity check... but we should NEVER be near this value.
DCHECK_GT(100, socket_count);
g_max_sockets_per_group = socket_count;
}
// static
void HttpNetworkSession::set_max_sockets_per_proxy_server(int socket_count) {
DCHECK_LT(0, socket_count);
DCHECK_GT(100, socket_count); // Sanity check.
// Assert this case early on. The max number of sockets per group cannot
// exceed the max number of sockets per proxy server.
DCHECK_LE(g_max_sockets_per_group, socket_count);
g_max_sockets_per_proxy_server = socket_count;
}
} // namespace net
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