422 lines
15 KiB
C++
422 lines
15 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "libcef/browser/url_request_context_getter.h"
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#if defined(OS_WIN)
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#include <winhttp.h>
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#endif
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#include <string>
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#include <vector>
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#include "libcef/browser/context.h"
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#include "libcef/browser/thread_util.h"
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#include "libcef/browser/url_network_delegate.h"
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#include "libcef/browser/url_request_context_proxy.h"
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#include "libcef/browser/url_request_interceptor.h"
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#include "base/file_util.h"
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#include "base/logging.h"
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#include "base/stl_util.h"
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#include "base/string_split.h"
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#include "base/string_util.h"
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#include "base/threading/thread_restrictions.h"
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#include "base/threading/worker_pool.h"
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#include "chrome/browser/net/sqlite_persistent_cookie_store.h"
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#include "content/public/browser/browser_thread.h"
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#include "net/base/cert_verifier.h"
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#include "net/base/default_server_bound_cert_store.h"
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#include "net/base/host_resolver.h"
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#include "net/base/server_bound_cert_service.h"
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#include "net/base/ssl_config_service_defaults.h"
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#include "net/cookies/cookie_monster.h"
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#include "net/ftp/ftp_network_layer.h"
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#include "net/http/http_auth_handler_factory.h"
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#include "net/http/http_cache.h"
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#include "net/http/http_server_properties_impl.h"
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#include "net/proxy/proxy_config_service.h"
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#include "net/proxy/proxy_config_service_fixed.h"
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#include "net/proxy/proxy_resolver.h"
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#include "net/proxy/proxy_service.h"
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#include "net/url_request/static_http_user_agent_settings.h"
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#include "net/url_request/url_request.h"
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#include "net/url_request/url_request_context.h"
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#include "net/url_request/url_request_context_storage.h"
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#include "net/url_request/url_request_job_factory_impl.h"
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#include "net/url_request/url_request_job_manager.h"
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using content::BrowserThread;
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#if defined(OS_WIN)
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#pragma comment(lib, "winhttp.lib")
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#endif
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namespace {
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#if defined(OS_WIN)
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// ProxyConfigService implementation that does nothing.
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class ProxyConfigServiceNull : public net::ProxyConfigService {
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public:
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ProxyConfigServiceNull() {}
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virtual void AddObserver(Observer* observer) OVERRIDE {}
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virtual void RemoveObserver(Observer* observer) OVERRIDE {}
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virtual ProxyConfigService::ConfigAvailability
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GetLatestProxyConfig(net::ProxyConfig* config) OVERRIDE {
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return ProxyConfigService::CONFIG_VALID;
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}
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virtual void OnLazyPoll() OVERRIDE {}
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DISALLOW_COPY_AND_ASSIGN(ProxyConfigServiceNull);
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};
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#endif // defined(OS_WIN)
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// ProxyResolver implementation that forewards resolution to a CefProxyHandler.
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class CefProxyResolver : public net::ProxyResolver {
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public:
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explicit CefProxyResolver(CefRefPtr<CefProxyHandler> handler)
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: ProxyResolver(false),
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handler_(handler) {}
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virtual ~CefProxyResolver() {}
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virtual int GetProxyForURL(const GURL& url,
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net::ProxyInfo* results,
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const net::CompletionCallback& callback,
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RequestHandle* request,
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const net::BoundNetLog& net_log) OVERRIDE {
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CefProxyInfo proxy_info;
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handler_->GetProxyForUrl(url.spec(), proxy_info);
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if (proxy_info.IsDirect())
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results->UseDirect();
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else if (proxy_info.IsNamedProxy())
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results->UseNamedProxy(proxy_info.ProxyList());
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else if (proxy_info.IsPacString())
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results->UsePacString(proxy_info.ProxyList());
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return net::OK;
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}
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virtual int SetPacScript(
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const scoped_refptr<net::ProxyResolverScriptData>& pac_script,
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const net::CompletionCallback& callback) OVERRIDE {
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return net::OK;
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}
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virtual void CancelRequest(RequestHandle request) OVERRIDE {}
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virtual net::LoadState GetLoadState(RequestHandle request) const OVERRIDE {
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return net::LOAD_STATE_IDLE;
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}
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virtual net::LoadState GetLoadStateThreadSafe(RequestHandle request) const
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OVERRIDE {
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return net::LOAD_STATE_IDLE;
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}
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virtual void CancelSetPacScript() OVERRIDE {}
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protected:
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CefRefPtr<CefProxyHandler> handler_;
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DISALLOW_COPY_AND_ASSIGN(CefProxyResolver);
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};
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} // namespace
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CefURLRequestContextGetter::CefURLRequestContextGetter(
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bool ignore_certificate_errors,
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const FilePath& base_path,
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MessageLoop* io_loop,
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MessageLoop* file_loop)
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: ignore_certificate_errors_(ignore_certificate_errors),
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base_path_(base_path),
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io_loop_(io_loop),
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file_loop_(file_loop) {
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// Must first be created on the UI thread.
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CEF_REQUIRE_UIT();
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#if !defined(OS_WIN)
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// We must create the proxy config service on the UI loop on Linux because it
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// must synchronously run on the glib message loop. This will be passed to
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// the URLRequestContextStorage on the IO thread in GetURLRequestContext().
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CreateProxyConfigService();
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#endif
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}
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CefURLRequestContextGetter::~CefURLRequestContextGetter() {
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STLDeleteElements(&url_request_context_proxies_);
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}
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net::URLRequestContext* CefURLRequestContextGetter::GetURLRequestContext() {
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CEF_REQUIRE_IOT();
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if (!url_request_context_.get()) {
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const FilePath& cache_path = _Context->cache_path();
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url_request_context_.reset(new net::URLRequestContext());
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storage_.reset(
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new net::URLRequestContextStorage(url_request_context_.get()));
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SetCookieStoragePath(cache_path);
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storage_->set_network_delegate(new CefNetworkDelegate);
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storage_->set_server_bound_cert_service(new net::ServerBoundCertService(
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new net::DefaultServerBoundCertStore(NULL),
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base::WorkerPool::GetTaskRunner(true)));
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storage_->set_http_user_agent_settings(
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new net::StaticHttpUserAgentSettings(
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"en-us,en", "iso-8859-1,*,utf-8", EmptyString()));
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storage_->set_host_resolver(net::HostResolver::CreateDefaultResolver(NULL));
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storage_->set_cert_verifier(net::CertVerifier::CreateDefault());
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bool proxy_service_set = false;
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CefRefPtr<CefApp> app = _Context->application();
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if (app.get()) {
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CefRefPtr<CefBrowserProcessHandler> handler =
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app->GetBrowserProcessHandler();
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if (handler.get()) {
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CefRefPtr<CefProxyHandler> proxy_handler = handler->GetProxyHandler();
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if (proxy_handler.get()) {
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// The client will provide proxy resolution.
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CreateProxyConfigService();
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storage_->set_proxy_service(
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new net::ProxyService(proxy_config_service_.release(),
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new CefProxyResolver(proxy_handler), NULL));
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proxy_service_set = true;
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}
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}
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}
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// TODO(jam): use v8 if possible, look at chrome code.
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#if defined(OS_WIN)
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if (!proxy_service_set) {
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const CefSettings& settings = _Context->settings();
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if (!settings.auto_detect_proxy_settings_enabled) {
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// Using the system proxy resolver on Windows when "Automatically detect
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// settings" (auto-detection) is checked under LAN Settings can hurt
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// resource loading performance because the call to
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// WinHttpGetProxyForUrl in proxy_resolver_winhttp.cc will block the
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// IO thread. This is especially true for Windows 7 where auto-
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// detection is checked by default. To avoid slow resource loading on
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// Windows we only use the system proxy resolver if auto-detection is
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// unchecked.
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WINHTTP_CURRENT_USER_IE_PROXY_CONFIG ie_config = {0};
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if (WinHttpGetIEProxyConfigForCurrentUser(&ie_config)) {
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if (ie_config.fAutoDetect == TRUE) {
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storage_->set_proxy_service(
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net::ProxyService::CreateWithoutProxyResolver(
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new ProxyConfigServiceNull(), NULL));
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proxy_service_set = true;
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}
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if (ie_config.lpszAutoConfigUrl)
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GlobalFree(ie_config.lpszAutoConfigUrl);
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if (ie_config.lpszProxy)
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GlobalFree(ie_config.lpszProxy);
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if (ie_config.lpszProxyBypass)
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GlobalFree(ie_config.lpszProxyBypass);
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}
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}
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}
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#endif // defined(OS_WIN)
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if (!proxy_service_set) {
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CreateProxyConfigService();
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storage_->set_proxy_service(
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net::ProxyService::CreateUsingSystemProxyResolver(
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proxy_config_service_.release(), 0, NULL));
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}
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storage_->set_ssl_config_service(new net::SSLConfigServiceDefaults);
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// Add support for single sign-on.
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url_security_manager_.reset(net::URLSecurityManager::Create(NULL, NULL));
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std::vector<std::string> supported_schemes;
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supported_schemes.push_back("basic");
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supported_schemes.push_back("digest");
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supported_schemes.push_back("ntlm");
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supported_schemes.push_back("negotiate");
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storage_->set_http_auth_handler_factory(
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net::HttpAuthHandlerRegistryFactory::Create(
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supported_schemes,
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url_security_manager_.get(),
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url_request_context_->host_resolver(),
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std::string(),
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false,
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false));
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storage_->set_http_server_properties(new net::HttpServerPropertiesImpl);
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net::HttpCache::DefaultBackend* main_backend =
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new net::HttpCache::DefaultBackend(
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cache_path.empty() ? net::MEMORY_CACHE : net::DISK_CACHE,
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cache_path,
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0,
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BrowserThread::GetMessageLoopProxyForThread(
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BrowserThread::CACHE));
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net::HttpNetworkSession::Params network_session_params;
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network_session_params.host_resolver =
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url_request_context_->host_resolver();
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network_session_params.cert_verifier =
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url_request_context_->cert_verifier();
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network_session_params.server_bound_cert_service =
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url_request_context_->server_bound_cert_service();
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network_session_params.proxy_service =
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url_request_context_->proxy_service();
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network_session_params.ssl_config_service =
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url_request_context_->ssl_config_service();
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network_session_params.http_auth_handler_factory =
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url_request_context_->http_auth_handler_factory();
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network_session_params.network_delegate =
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url_request_context_->network_delegate();
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network_session_params.http_server_properties =
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url_request_context_->http_server_properties();
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network_session_params.ignore_certificate_errors =
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ignore_certificate_errors_;
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net::HttpCache* main_cache = new net::HttpCache(network_session_params,
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main_backend);
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storage_->set_http_transaction_factory(main_cache);
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storage_->set_ftp_transaction_factory(
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new net::FtpNetworkLayer(url_request_context_->host_resolver()));
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storage_->set_job_factory(new net::URLRequestJobFactoryImpl);
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request_interceptor_.reset(new CefRequestInterceptor);
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}
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return url_request_context_.get();
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}
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scoped_refptr<base::SingleThreadTaskRunner>
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CefURLRequestContextGetter::GetNetworkTaskRunner() const {
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return BrowserThread::GetMessageLoopProxyForThread(CEF_IOT);
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}
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net::HostResolver* CefURLRequestContextGetter::host_resolver() {
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return url_request_context_->host_resolver();
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}
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void CefURLRequestContextGetter::SetCookieStoragePath(const FilePath& path) {
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CEF_REQUIRE_IOT();
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if (url_request_context_->cookie_store() &&
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((cookie_store_path_.empty() && path.empty()) ||
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cookie_store_path_ == path)) {
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// The path has not changed so don't do anything.
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return;
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}
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scoped_refptr<SQLitePersistentCookieStore> persistent_store;
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if (!path.empty()) {
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// TODO(cef): Move directory creation to the blocking pool instead of
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// allowing file IO on this thread.
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base::ThreadRestrictions::ScopedAllowIO allow_io;
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if (file_util::DirectoryExists(path) ||
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file_util::CreateDirectory(path)) {
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const FilePath& cookie_path = path.AppendASCII("Cookies");
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persistent_store =
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new SQLitePersistentCookieStore(cookie_path, false, NULL);
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} else {
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NOTREACHED() << "The cookie storage directory could not be created";
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}
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}
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// Set the new cookie store that will be used for all new requests. The old
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// cookie store, if any, will be automatically flushed and closed when no
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// longer referenced.
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storage_->set_cookie_store(
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new net::CookieMonster(persistent_store.get(), NULL));
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cookie_store_path_ = path;
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// Restore the previously supported schemes.
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SetCookieSupportedSchemes(cookie_supported_schemes_);
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}
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void CefURLRequestContextGetter::SetCookieSupportedSchemes(
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const std::vector<std::string>& schemes) {
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CEF_REQUIRE_IOT();
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cookie_supported_schemes_ = schemes;
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if (cookie_supported_schemes_.empty()) {
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cookie_supported_schemes_.push_back("http");
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cookie_supported_schemes_.push_back("https");
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}
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std::set<std::string> scheme_set;
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std::vector<std::string>::const_iterator it =
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cookie_supported_schemes_.begin();
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for (; it != cookie_supported_schemes_.end(); ++it)
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scheme_set.insert(*it);
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const char** arr = new const char*[scheme_set.size()];
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std::set<std::string>::const_iterator it2 = scheme_set.begin();
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for (int i = 0; it2 != scheme_set.end(); ++it2, ++i)
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arr[i] = it2->c_str();
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url_request_context_->cookie_store()->GetCookieMonster()->
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SetCookieableSchemes(arr, scheme_set.size());
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delete [] arr;
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}
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CefURLRequestContextProxy*
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CefURLRequestContextGetter::CreateURLRequestContextProxy() {
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CEF_REQUIRE_IOT();
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CefURLRequestContextProxy* proxy = new CefURLRequestContextProxy(this);
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url_request_context_proxies_.insert(proxy);
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return proxy;
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}
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void CefURLRequestContextGetter::ReleaseURLRequestContextProxy(
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CefURLRequestContextProxy* proxy) {
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CEF_REQUIRE_IOT();
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// Don't do anything if we're currently shutting down. The proxy objects will
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// be deleted when this object is destroyed.
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if (_Context->shutting_down())
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return;
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if (proxy->url_requests()->size() == 0) {
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// Safe to delete the proxy.
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RequestContextProxySet::iterator it =
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url_request_context_proxies_.find(proxy);
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DCHECK(it != url_request_context_proxies_.end());
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url_request_context_proxies_.erase(it);
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delete proxy;
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} else {
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proxy->increment_delete_try_count();
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if (proxy->delete_try_count() <= 1) {
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// Cancel the pending requests. This may result in additional tasks being
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// posted on the IO thread.
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std::set<const net::URLRequest*>::iterator it =
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proxy->url_requests()->begin();
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for (; it != proxy->url_requests()->end(); ++it)
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const_cast<net::URLRequest*>(*it)->Cancel();
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// Try to delete the proxy again later.
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CEF_POST_TASK(CEF_IOT,
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base::Bind(&CefURLRequestContextGetter::ReleaseURLRequestContextProxy,
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this, proxy));
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} else {
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NOTREACHED() <<
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"too many retries to delete URLRequestContext proxy object";
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}
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}
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}
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void CefURLRequestContextGetter::CreateProxyConfigService() {
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if (proxy_config_service_.get())
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return;
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proxy_config_service_.reset(
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net::ProxyService::CreateSystemProxyConfigService(
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io_loop_->message_loop_proxy(), file_loop_));
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}
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