cef/libcef/browser/url_request_context_getter.cc

423 lines
15 KiB
C++

// 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 "libcef/browser/url_request_context_getter.h"
#if defined(OS_WIN)
#include <winhttp.h>
#endif
#include <string>
#include <vector>
#include "libcef/browser/context.h"
#include "libcef/browser/thread_util.h"
#include "libcef/browser/url_network_delegate.h"
#include "libcef/browser/url_request_context_proxy.h"
#include "libcef/browser/url_request_interceptor.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/stl_util.h"
#include "base/string_split.h"
#include "base/string_util.h"
#include "base/threading/thread_restrictions.h"
#include "base/threading/worker_pool.h"
#include "chrome/browser/net/sqlite_persistent_cookie_store.h"
#include "content/public/browser/browser_thread.h"
#include "net/base/cert_verifier.h"
#include "net/base/default_server_bound_cert_store.h"
#include "net/base/host_resolver.h"
#include "net/base/server_bound_cert_service.h"
#include "net/base/ssl_config_service_defaults.h"
#include "net/cookies/cookie_monster.h"
#include "net/ftp/ftp_network_layer.h"
#include "net/http/http_auth_handler_factory.h"
#include "net/http/http_cache.h"
#include "net/http/http_server_properties_impl.h"
#include "net/proxy/proxy_config_service.h"
#include "net/proxy/proxy_config_service_fixed.h"
#include "net/proxy/proxy_resolver.h"
#include "net/proxy/proxy_service.h"
#include "net/url_request/static_http_user_agent_settings.h"
#include "net/url_request/url_request.h"
#include "net/url_request/url_request_context.h"
#include "net/url_request/url_request_context_storage.h"
#include "net/url_request/url_request_job_factory_impl.h"
#include "net/url_request/url_request_job_manager.h"
using content::BrowserThread;
#if defined(OS_WIN)
#pragma comment(lib, "winhttp.lib")
#endif
namespace {
#if defined(OS_WIN)
// ProxyConfigService implementation that does nothing.
class ProxyConfigServiceNull : public net::ProxyConfigService {
public:
ProxyConfigServiceNull() {}
virtual void AddObserver(Observer* observer) OVERRIDE {}
virtual void RemoveObserver(Observer* observer) OVERRIDE {}
virtual ProxyConfigService::ConfigAvailability
GetLatestProxyConfig(net::ProxyConfig* config) OVERRIDE {
return ProxyConfigService::CONFIG_VALID;
}
virtual void OnLazyPoll() OVERRIDE {}
DISALLOW_COPY_AND_ASSIGN(ProxyConfigServiceNull);
};
#endif // defined(OS_WIN)
// ProxyResolver implementation that forewards resolution to a CefProxyHandler.
class CefProxyResolver : public net::ProxyResolver {
public:
explicit CefProxyResolver(CefRefPtr<CefProxyHandler> handler)
: ProxyResolver(false),
handler_(handler) {}
virtual ~CefProxyResolver() {}
virtual int GetProxyForURL(const GURL& url,
net::ProxyInfo* results,
const net::CompletionCallback& callback,
RequestHandle* request,
const net::BoundNetLog& net_log) OVERRIDE {
CefProxyInfo proxy_info;
handler_->GetProxyForUrl(url.spec(), proxy_info);
if (proxy_info.IsDirect())
results->UseDirect();
else if (proxy_info.IsNamedProxy())
results->UseNamedProxy(proxy_info.ProxyList());
else if (proxy_info.IsPacString())
results->UsePacString(proxy_info.ProxyList());
return net::OK;
}
virtual int SetPacScript(
const scoped_refptr<net::ProxyResolverScriptData>& pac_script,
const net::CompletionCallback& callback) OVERRIDE {
return net::OK;
}
virtual void CancelRequest(RequestHandle request) OVERRIDE {}
virtual net::LoadState GetLoadState(RequestHandle request) const OVERRIDE {
return net::LOAD_STATE_IDLE;
}
virtual net::LoadState GetLoadStateThreadSafe(RequestHandle request) const
OVERRIDE {
return net::LOAD_STATE_IDLE;
}
virtual void CancelSetPacScript() OVERRIDE {}
protected:
CefRefPtr<CefProxyHandler> handler_;
DISALLOW_COPY_AND_ASSIGN(CefProxyResolver);
};
} // namespace
CefURLRequestContextGetter::CefURLRequestContextGetter(
bool ignore_certificate_errors,
const FilePath& base_path,
MessageLoop* io_loop,
MessageLoop* file_loop)
: ignore_certificate_errors_(ignore_certificate_errors),
base_path_(base_path),
io_loop_(io_loop),
file_loop_(file_loop) {
// Must first be created on the UI thread.
CEF_REQUIRE_UIT();
#if !defined(OS_WIN)
// We must create the proxy config service on the UI loop on Linux because it
// must synchronously run on the glib message loop. This will be passed to
// the URLRequestContextStorage on the IO thread in GetURLRequestContext().
CreateProxyConfigService();
#endif
}
CefURLRequestContextGetter::~CefURLRequestContextGetter() {
CEF_REQUIRE_IOT();
STLDeleteElements(&url_request_context_proxies_);
}
net::URLRequestContext* CefURLRequestContextGetter::GetURLRequestContext() {
CEF_REQUIRE_IOT();
if (!url_request_context_.get()) {
const FilePath& cache_path = _Context->cache_path();
url_request_context_.reset(new net::URLRequestContext());
storage_.reset(
new net::URLRequestContextStorage(url_request_context_.get()));
SetCookieStoragePath(cache_path);
storage_->set_network_delegate(new CefNetworkDelegate);
storage_->set_server_bound_cert_service(new net::ServerBoundCertService(
new net::DefaultServerBoundCertStore(NULL),
base::WorkerPool::GetTaskRunner(true)));
storage_->set_http_user_agent_settings(
new net::StaticHttpUserAgentSettings(
"en-us,en", "iso-8859-1,*,utf-8", EmptyString()));
storage_->set_host_resolver(net::HostResolver::CreateDefaultResolver(NULL));
storage_->set_cert_verifier(net::CertVerifier::CreateDefault());
bool proxy_service_set = false;
CefRefPtr<CefApp> app = _Context->application();
if (app.get()) {
CefRefPtr<CefBrowserProcessHandler> handler =
app->GetBrowserProcessHandler();
if (handler.get()) {
CefRefPtr<CefProxyHandler> proxy_handler = handler->GetProxyHandler();
if (proxy_handler.get()) {
// The client will provide proxy resolution.
CreateProxyConfigService();
storage_->set_proxy_service(
new net::ProxyService(proxy_config_service_.release(),
new CefProxyResolver(proxy_handler), NULL));
proxy_service_set = true;
}
}
}
// TODO(jam): use v8 if possible, look at chrome code.
#if defined(OS_WIN)
if (!proxy_service_set) {
const CefSettings& settings = _Context->settings();
if (!settings.auto_detect_proxy_settings_enabled) {
// Using the system proxy resolver on Windows when "Automatically detect
// settings" (auto-detection) is checked under LAN Settings can hurt
// resource loading performance because the call to
// WinHttpGetProxyForUrl in proxy_resolver_winhttp.cc will block the
// IO thread. This is especially true for Windows 7 where auto-
// detection is checked by default. To avoid slow resource loading on
// Windows we only use the system proxy resolver if auto-detection is
// unchecked.
WINHTTP_CURRENT_USER_IE_PROXY_CONFIG ie_config = {0};
if (WinHttpGetIEProxyConfigForCurrentUser(&ie_config)) {
if (ie_config.fAutoDetect == TRUE) {
storage_->set_proxy_service(
net::ProxyService::CreateWithoutProxyResolver(
new ProxyConfigServiceNull(), NULL));
proxy_service_set = true;
}
if (ie_config.lpszAutoConfigUrl)
GlobalFree(ie_config.lpszAutoConfigUrl);
if (ie_config.lpszProxy)
GlobalFree(ie_config.lpszProxy);
if (ie_config.lpszProxyBypass)
GlobalFree(ie_config.lpszProxyBypass);
}
}
}
#endif // defined(OS_WIN)
if (!proxy_service_set) {
CreateProxyConfigService();
storage_->set_proxy_service(
net::ProxyService::CreateUsingSystemProxyResolver(
proxy_config_service_.release(), 0, NULL));
}
storage_->set_ssl_config_service(new net::SSLConfigServiceDefaults);
// Add support for single sign-on.
url_security_manager_.reset(net::URLSecurityManager::Create(NULL, NULL));
std::vector<std::string> supported_schemes;
supported_schemes.push_back("basic");
supported_schemes.push_back("digest");
supported_schemes.push_back("ntlm");
supported_schemes.push_back("negotiate");
storage_->set_http_auth_handler_factory(
net::HttpAuthHandlerRegistryFactory::Create(
supported_schemes,
url_security_manager_.get(),
url_request_context_->host_resolver(),
std::string(),
false,
false));
storage_->set_http_server_properties(new net::HttpServerPropertiesImpl);
net::HttpCache::DefaultBackend* main_backend =
new net::HttpCache::DefaultBackend(
cache_path.empty() ? net::MEMORY_CACHE : net::DISK_CACHE,
cache_path,
0,
BrowserThread::GetMessageLoopProxyForThread(
BrowserThread::CACHE));
net::HttpNetworkSession::Params network_session_params;
network_session_params.host_resolver =
url_request_context_->host_resolver();
network_session_params.cert_verifier =
url_request_context_->cert_verifier();
network_session_params.server_bound_cert_service =
url_request_context_->server_bound_cert_service();
network_session_params.proxy_service =
url_request_context_->proxy_service();
network_session_params.ssl_config_service =
url_request_context_->ssl_config_service();
network_session_params.http_auth_handler_factory =
url_request_context_->http_auth_handler_factory();
network_session_params.network_delegate =
url_request_context_->network_delegate();
network_session_params.http_server_properties =
url_request_context_->http_server_properties();
network_session_params.ignore_certificate_errors =
ignore_certificate_errors_;
net::HttpCache* main_cache = new net::HttpCache(network_session_params,
main_backend);
storage_->set_http_transaction_factory(main_cache);
storage_->set_ftp_transaction_factory(
new net::FtpNetworkLayer(url_request_context_->host_resolver()));
storage_->set_job_factory(new net::URLRequestJobFactoryImpl);
request_interceptor_.reset(new CefRequestInterceptor);
}
return url_request_context_.get();
}
scoped_refptr<base::SingleThreadTaskRunner>
CefURLRequestContextGetter::GetNetworkTaskRunner() const {
return BrowserThread::GetMessageLoopProxyForThread(CEF_IOT);
}
net::HostResolver* CefURLRequestContextGetter::host_resolver() {
return url_request_context_->host_resolver();
}
void CefURLRequestContextGetter::SetCookieStoragePath(const FilePath& path) {
CEF_REQUIRE_IOT();
if (url_request_context_->cookie_store() &&
((cookie_store_path_.empty() && path.empty()) ||
cookie_store_path_ == path)) {
// The path has not changed so don't do anything.
return;
}
scoped_refptr<SQLitePersistentCookieStore> persistent_store;
if (!path.empty()) {
// TODO(cef): Move directory creation to the blocking pool instead of
// allowing file IO on this thread.
base::ThreadRestrictions::ScopedAllowIO allow_io;
if (file_util::DirectoryExists(path) ||
file_util::CreateDirectory(path)) {
const FilePath& cookie_path = path.AppendASCII("Cookies");
persistent_store =
new SQLitePersistentCookieStore(cookie_path, false, NULL);
} else {
NOTREACHED() << "The cookie storage directory could not be created";
}
}
// Set the new cookie store that will be used for all new requests. The old
// cookie store, if any, will be automatically flushed and closed when no
// longer referenced.
storage_->set_cookie_store(
new net::CookieMonster(persistent_store.get(), NULL));
cookie_store_path_ = path;
// Restore the previously supported schemes.
SetCookieSupportedSchemes(cookie_supported_schemes_);
}
void CefURLRequestContextGetter::SetCookieSupportedSchemes(
const std::vector<std::string>& schemes) {
CEF_REQUIRE_IOT();
cookie_supported_schemes_ = schemes;
if (cookie_supported_schemes_.empty()) {
cookie_supported_schemes_.push_back("http");
cookie_supported_schemes_.push_back("https");
}
std::set<std::string> scheme_set;
std::vector<std::string>::const_iterator it =
cookie_supported_schemes_.begin();
for (; it != cookie_supported_schemes_.end(); ++it)
scheme_set.insert(*it);
const char** arr = new const char*[scheme_set.size()];
std::set<std::string>::const_iterator it2 = scheme_set.begin();
for (int i = 0; it2 != scheme_set.end(); ++it2, ++i)
arr[i] = it2->c_str();
url_request_context_->cookie_store()->GetCookieMonster()->
SetCookieableSchemes(arr, scheme_set.size());
delete [] arr;
}
CefURLRequestContextProxy*
CefURLRequestContextGetter::CreateURLRequestContextProxy() {
CEF_REQUIRE_IOT();
CefURLRequestContextProxy* proxy = new CefURLRequestContextProxy(this);
url_request_context_proxies_.insert(proxy);
return proxy;
}
void CefURLRequestContextGetter::ReleaseURLRequestContextProxy(
CefURLRequestContextProxy* proxy) {
CEF_REQUIRE_IOT();
// Don't do anything if we're currently shutting down. The proxy objects will
// be deleted when this object is destroyed.
if (_Context->shutting_down())
return;
if (proxy->url_requests()->size() == 0) {
// Safe to delete the proxy.
RequestContextProxySet::iterator it =
url_request_context_proxies_.find(proxy);
DCHECK(it != url_request_context_proxies_.end());
url_request_context_proxies_.erase(it);
delete proxy;
} else {
proxy->increment_delete_try_count();
if (proxy->delete_try_count() <= 1) {
// Cancel the pending requests. This may result in additional tasks being
// posted on the IO thread.
std::set<const net::URLRequest*>::iterator it =
proxy->url_requests()->begin();
for (; it != proxy->url_requests()->end(); ++it)
const_cast<net::URLRequest*>(*it)->Cancel();
// Try to delete the proxy again later.
CEF_POST_TASK(CEF_IOT,
base::Bind(&CefURLRequestContextGetter::ReleaseURLRequestContextProxy,
this, proxy));
} else {
NOTREACHED() <<
"too many retries to delete URLRequestContext proxy object";
}
}
}
void CefURLRequestContextGetter::CreateProxyConfigService() {
if (proxy_config_service_.get())
return;
proxy_config_service_.reset(
net::ProxyService::CreateSystemProxyConfigService(
io_loop_->message_loop_proxy(), file_loop_));
}