chromecast/browser/url_request_context_factory.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chromecast/browser/url_request_context_factory.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/files/file_path.h"
   9 #include "base/macros.h"
  10 #include "base/threading/worker_pool.h"
  11 #include "chromecast/base/chromecast_switches.h"
  12 #include "chromecast/browser/cast_http_user_agent_settings.h"
  13 #include "chromecast/browser/cast_network_delegate.h"
  14 #include "content/public/browser/browser_context.h"
  15 #include "content/public/browser/browser_thread.h"
  16 #include "content/public/browser/cookie_store_factory.h"
  17 #include "content/public/common/content_switches.h"
  18 #include "content/public/common/url_constants.h"
  19 #include "net/cert/cert_verifier.h"
  20 #include "net/cert_net/nss_ocsp.h"
  21 #include "net/cookies/cookie_store.h"
  22 #include "net/dns/host_resolver.h"
  23 #include "net/http/http_auth_handler_factory.h"
  24 #include "net/http/http_network_layer.h"
  25 #include "net/http/http_server_properties_impl.h"
  26 #include "net/http/http_stream_factory.h"
  27 #include "net/proxy/proxy_service.h"
  28 #include "net/socket/next_proto.h"
  29 #include "net/ssl/channel_id_service.h"
  30 #include "net/ssl/default_channel_id_store.h"
  31 #include "net/ssl/ssl_config_service_defaults.h"
  32 #include "net/url_request/data_protocol_handler.h"
  33 #include "net/url_request/file_protocol_handler.h"
  34 #include "net/url_request/url_request_context.h"
  35 #include "net/url_request/url_request_context_getter.h"
  36 #include "net/url_request/url_request_intercepting_job_factory.h"
  37 #include "net/url_request/url_request_job_factory_impl.h"
  38
  39 namespace chromecast {
  40 namespace shell {
  41
  42 namespace {
  43
  44 const char kCookieStoreFile[] = "Cookies";
  45
  46 }  // namespace
  47
  48 // Private classes to expose URLRequestContextGetter that call back to the
  49 // URLRequestContextFactory to create the URLRequestContext on demand.
  50 //
  51 // The URLRequestContextFactory::URLRequestContextGetter class is used for both
  52 // the system and media URLRequestCotnexts.
  53 class URLRequestContextFactory::URLRequestContextGetter
  54     : public net::URLRequestContextGetter {
  55  public:
  56   URLRequestContextGetter(URLRequestContextFactory* factory, bool is_media)
  57       : is_media_(is_media),
  58         factory_(factory) {
  59   }
  60
  61   net::URLRequestContext* GetURLRequestContext() override {
  62     if (!request_context_) {
  63       if (is_media_) {
  64         request_context_.reset(factory_->CreateMediaRequestContext());
  65       } else {
  66         request_context_.reset(factory_->CreateSystemRequestContext());
  67 #if defined(USE_NSS_CERTS)
  68         // Set request context used by NSS for Crl requests.
  69         net::SetURLRequestContextForNSSHttpIO(request_context_.get());
  70 #endif  // defined(USE_NSS_CERTS)
  71       }
  72     }
  73     return request_context_.get();
  74   }
  75
  76   scoped_refptr<base::SingleThreadTaskRunner>
  77       GetNetworkTaskRunner() const override {
  78     return content::BrowserThread::GetMessageLoopProxyForThread(
  79         content::BrowserThread::IO);
  80   }
  81
  82  private:
  83   ~URLRequestContextGetter() override {}
  84
  85   const bool is_media_;
  86   URLRequestContextFactory* const factory_;
  87   scoped_ptr<net::URLRequestContext> request_context_;
  88
  89   DISALLOW_COPY_AND_ASSIGN(URLRequestContextGetter);
  90 };
  91
  92 // The URLRequestContextFactory::MainURLRequestContextGetter class is used for
  93 // the main URLRequestContext.
  94 class URLRequestContextFactory::MainURLRequestContextGetter
  95     : public net::URLRequestContextGetter {
  96  public:
  97   MainURLRequestContextGetter(
  98       URLRequestContextFactory* factory,
  99       content::BrowserContext* browser_context,
 100       content::ProtocolHandlerMap* protocol_handlers,
 101       content::URLRequestInterceptorScopedVector request_interceptors)
 102       : browser_context_(browser_context),
 103         factory_(factory),
 104         request_interceptors_(request_interceptors.Pass()) {
 105     std::swap(protocol_handlers_, *protocol_handlers);
 106   }
 107
 108   net::URLRequestContext* GetURLRequestContext() override {
 109     if (!request_context_) {
 110       request_context_.reset(factory_->CreateMainRequestContext(
 111           browser_context_, &protocol_handlers_, request_interceptors_.Pass()));
 112       protocol_handlers_.clear();
 113     }
 114     return request_context_.get();
 115   }
 116
 117   scoped_refptr<base::SingleThreadTaskRunner>
 118       GetNetworkTaskRunner() const override {
 119     return content::BrowserThread::GetMessageLoopProxyForThread(
 120         content::BrowserThread::IO);
 121   }
 122
 123  private:
 124   ~MainURLRequestContextGetter() override {}
 125
 126   content::BrowserContext* const browser_context_;
 127   URLRequestContextFactory* const factory_;
 128   content::ProtocolHandlerMap protocol_handlers_;
 129   content::URLRequestInterceptorScopedVector request_interceptors_;
 130   scoped_ptr<net::URLRequestContext> request_context_;
 131
 132   DISALLOW_COPY_AND_ASSIGN(MainURLRequestContextGetter);
 133 };
 134
 135 URLRequestContextFactory::URLRequestContextFactory()
 136     : app_network_delegate_(CastNetworkDelegate::Create()),
 137       system_network_delegate_(CastNetworkDelegate::Create()),
 138       system_dependencies_initialized_(false),
 139       main_dependencies_initialized_(false),
 140       media_dependencies_initialized_(false) {
 141 }
 142
 143 URLRequestContextFactory::~URLRequestContextFactory() {
 144 }
 145
 146 void URLRequestContextFactory::InitializeOnUIThread(net::NetLog* net_log) {
 147   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 148   // Cast http user agent settings must be initialized in UI thread
 149   // because it registers itself to pref notification observer which is not
 150   // thread safe.
 151   http_user_agent_settings_.reset(new CastHttpUserAgentSettings());
 152
 153   // Proxy config service should be initialized in UI thread, since
 154   // ProxyConfigServiceDelegate on Android expects UI thread.
 155   proxy_config_service_.reset(net::ProxyService::CreateSystemProxyConfigService(
 156       content::BrowserThread::GetMessageLoopProxyForThread(
 157           content::BrowserThread::IO),
 158       content::BrowserThread::GetMessageLoopProxyForThread(
 159           content::BrowserThread::FILE)));
 160
 161   net_log_ = net_log;
 162 }
 163
 164 net::URLRequestContextGetter* URLRequestContextFactory::CreateMainGetter(
 165     content::BrowserContext* browser_context,
 166     content::ProtocolHandlerMap* protocol_handlers,
 167     content::URLRequestInterceptorScopedVector request_interceptors) {
 168   DCHECK(!main_getter_.get())
 169       << "Main URLRequestContextGetter already initialized";
 170   main_getter_ = new MainURLRequestContextGetter(this,
 171                                                  browser_context,
 172                                                  protocol_handlers,
 173                                                  request_interceptors.Pass());
 174   return main_getter_.get();
 175 }
 176
 177 net::URLRequestContextGetter* URLRequestContextFactory::GetMainGetter() {
 178   CHECK(main_getter_.get());
 179   return main_getter_.get();
 180 }
 181
 182 net::URLRequestContextGetter* URLRequestContextFactory::GetSystemGetter() {
 183   if (!system_getter_.get()) {
 184     system_getter_ = new URLRequestContextGetter(this, false);
 185   }
 186   return system_getter_.get();
 187 }
 188
 189 net::URLRequestContextGetter* URLRequestContextFactory::GetMediaGetter() {
 190   if (!media_getter_.get()) {
 191     media_getter_ = new URLRequestContextGetter(this, true);
 192   }
 193   return media_getter_.get();
 194 }
 195
 196 void URLRequestContextFactory::InitializeSystemContextDependencies() {
 197   if (system_dependencies_initialized_)
 198     return;
 199
 200   host_resolver_ = net::HostResolver::CreateDefaultResolver(NULL);
 201
 202   // TODO(lcwu): http://crbug.com/392352. For performance and security reasons,
 203   // a persistent (on-disk) HttpServerProperties and ChannelIDService might be
 204   // desirable in the future.
 205   channel_id_service_.reset(
 206       new net::ChannelIDService(new net::DefaultChannelIDStore(NULL),
 207                                 base::WorkerPool::GetTaskRunner(true)));
 208
 209   cert_verifier_.reset(net::CertVerifier::CreateDefault());
 210
 211   ssl_config_service_ = new net::SSLConfigServiceDefaults;
 212
 213   transport_security_state_.reset(new net::TransportSecurityState());
 214   http_auth_handler_factory_.reset(
 215       net::HttpAuthHandlerFactory::CreateDefault(host_resolver_.get()));
 216
 217   http_server_properties_.reset(new net::HttpServerPropertiesImpl);
 218
 219   proxy_service_.reset(net::ProxyService::CreateUsingSystemProxyResolver(
 220       proxy_config_service_.release(), 0, NULL));
 221   system_dependencies_initialized_ = true;
 222 }
 223
 224 void URLRequestContextFactory::InitializeMainContextDependencies(
 225     net::HttpTransactionFactory* transaction_factory,
 226     content::ProtocolHandlerMap* protocol_handlers,
 227     content::URLRequestInterceptorScopedVector request_interceptors) {
 228   if (main_dependencies_initialized_)
 229     return;
 230
 231   main_transaction_factory_.reset(transaction_factory);
 232   scoped_ptr<net::URLRequestJobFactoryImpl> job_factory(
 233       new net::URLRequestJobFactoryImpl());
 234   // Keep ProtocolHandlers added in sync with
 235   // CastContentBrowserClient::IsHandledURL().
 236   bool set_protocol = false;
 237   for (content::ProtocolHandlerMap::iterator it = protocol_handlers->begin();
 238        it != protocol_handlers->end();
 239        ++it) {
 240     set_protocol = job_factory->SetProtocolHandler(
 241         it->first, it->second.release());
 242     DCHECK(set_protocol);
 243   }
 244   set_protocol = job_factory->SetProtocolHandler(
 245       url::kDataScheme,
 246       new net::DataProtocolHandler);
 247   DCHECK(set_protocol);
 248
 249   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
 250       switches::kEnableLocalFileAccesses)) {
 251     set_protocol = job_factory->SetProtocolHandler(
 252         url::kFileScheme,
 253         new net::FileProtocolHandler(
 254             content::BrowserThread::GetBlockingPool()->
 255                 GetTaskRunnerWithShutdownBehavior(
 256                     base::SequencedWorkerPool::SKIP_ON_SHUTDOWN)));
 257     DCHECK(set_protocol);
 258   }
 259
 260   // Set up interceptors in the reverse order.
 261   scoped_ptr<net::URLRequestJobFactory> top_job_factory = job_factory.Pass();
 262   for (content::URLRequestInterceptorScopedVector::reverse_iterator i =
 263            request_interceptors.rbegin();
 264        i != request_interceptors.rend();
 265        ++i) {
 266     top_job_factory.reset(new net::URLRequestInterceptingJobFactory(
 267         top_job_factory.Pass(), make_scoped_ptr(*i)));
 268   }
 269   request_interceptors.weak_clear();
 270
 271   main_job_factory_.reset(top_job_factory.release());
 272
 273   main_dependencies_initialized_ = true;
 274 }
 275
 276 void URLRequestContextFactory::InitializeMediaContextDependencies(
 277     net::HttpTransactionFactory* transaction_factory) {
 278   if (media_dependencies_initialized_)
 279     return;
 280
 281   media_transaction_factory_.reset(transaction_factory);
 282   media_dependencies_initialized_ = true;
 283 }
 284
 285 void URLRequestContextFactory::PopulateNetworkSessionParams(
 286     bool ignore_certificate_errors,
 287     net::HttpNetworkSession::Params* params) {
 288   params->host_resolver = host_resolver_.get();
 289   params->cert_verifier = cert_verifier_.get();
 290   params->channel_id_service = channel_id_service_.get();
 291   params->ssl_config_service = ssl_config_service_.get();
 292   params->transport_security_state = transport_security_state_.get();
 293   params->http_auth_handler_factory = http_auth_handler_factory_.get();
 294   params->http_server_properties = http_server_properties_->GetWeakPtr();
 295   params->ignore_certificate_errors = ignore_certificate_errors;
 296   params->proxy_service = proxy_service_.get();
 297
 298   // TODO(lcwu): http://crbug.com/329681. Remove this once spdy is enabled
 299   // by default at the content level.
 300   params->next_protos = net::NextProtosSpdy31();
 301   params->use_alternate_protocols = true;
 302 }
 303
 304 net::URLRequestContext* URLRequestContextFactory::CreateSystemRequestContext() {
 305   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
 306   InitializeSystemContextDependencies();
 307   net::HttpNetworkSession::Params system_params;
 308   PopulateNetworkSessionParams(false, &system_params);
 309   system_transaction_factory_.reset(new net::HttpNetworkLayer(
 310       new net::HttpNetworkSession(system_params)));
 311   system_job_factory_.reset(new net::URLRequestJobFactoryImpl());
 312
 313   net::URLRequestContext* system_context = new net::URLRequestContext();
 314   system_context->set_host_resolver(host_resolver_.get());
 315   system_context->set_channel_id_service(channel_id_service_.get());
 316   system_context->set_cert_verifier(cert_verifier_.get());
 317   system_context->set_proxy_service(proxy_service_.get());
 318   system_context->set_ssl_config_service(ssl_config_service_.get());
 319   system_context->set_transport_security_state(
 320       transport_security_state_.get());
 321   system_context->set_http_auth_handler_factory(
 322       http_auth_handler_factory_.get());
 323   system_context->set_http_server_properties(
 324       http_server_properties_->GetWeakPtr());
 325   system_context->set_http_transaction_factory(
 326       system_transaction_factory_.get());
 327   system_context->set_http_user_agent_settings(
 328       http_user_agent_settings_.get());
 329   system_context->set_job_factory(system_job_factory_.get());
 330   system_context->set_cookie_store(
 331       content::CreateCookieStore(content::CookieStoreConfig()));
 332   system_context->set_network_delegate(system_network_delegate_.get());
 333   system_context->set_net_log(net_log_);
 334   return system_context;
 335 }
 336
 337 net::URLRequestContext* URLRequestContextFactory::CreateMediaRequestContext() {
 338   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
 339   DCHECK(main_getter_.get())
 340       << "Getting MediaRequestContext before MainRequestContext";
 341   net::URLRequestContext* main_context = main_getter_->GetURLRequestContext();
 342
 343   // Set non caching backend.
 344   net::HttpNetworkSession* main_session =
 345       main_transaction_factory_->GetSession();
 346   InitializeMediaContextDependencies(
 347       new net::HttpNetworkLayer(main_session));
 348
 349   net::URLRequestContext* media_context = new net::URLRequestContext();
 350   media_context->CopyFrom(main_context);
 351   media_context->set_http_transaction_factory(
 352       media_transaction_factory_.get());
 353   media_context->set_net_log(net_log_);
 354   return media_context;
 355 }
 356
 357 net::URLRequestContext* URLRequestContextFactory::CreateMainRequestContext(
 358     content::BrowserContext* browser_context,
 359     content::ProtocolHandlerMap* protocol_handlers,
 360     content::URLRequestInterceptorScopedVector request_interceptors) {
 361   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
 362   InitializeSystemContextDependencies();
 363
 364   bool ignore_certificate_errors = false;
 365   base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
 366   if (cmd_line->HasSwitch(switches::kIgnoreCertificateErrors)) {
 367     ignore_certificate_errors = true;
 368   }
 369   net::HttpNetworkSession::Params network_session_params;
 370   PopulateNetworkSessionParams(ignore_certificate_errors,
 371                                &network_session_params);
 372   InitializeMainContextDependencies(
 373       new net::HttpNetworkLayer(
 374           new net::HttpNetworkSession(network_session_params)),
 375       protocol_handlers,
 376       request_interceptors.Pass());
 377
 378   content::CookieStoreConfig cookie_config(
 379       browser_context->GetPath().Append(kCookieStoreFile),
 380       content::CookieStoreConfig::PERSISTANT_SESSION_COOKIES,
 381       NULL, NULL);
 382   cookie_config.background_task_runner =
 383       scoped_refptr<base::SequencedTaskRunner>();
 384   scoped_refptr<net::CookieStore> cookie_store =
 385       content::CreateCookieStore(cookie_config);
 386
 387   net::URLRequestContext* main_context = new net::URLRequestContext();
 388   main_context->set_host_resolver(host_resolver_.get());
 389   main_context->set_channel_id_service(channel_id_service_.get());
 390   main_context->set_cert_verifier(cert_verifier_.get());
 391   main_context->set_proxy_service(proxy_service_.get());
 392   main_context->set_ssl_config_service(ssl_config_service_.get());
 393   main_context->set_transport_security_state(transport_security_state_.get());
 394   main_context->set_http_auth_handler_factory(
 395       http_auth_handler_factory_.get());
 396   main_context->set_http_server_properties(
 397       http_server_properties_->GetWeakPtr());
 398   main_context->set_cookie_store(cookie_store.get());
 399   main_context->set_http_user_agent_settings(
 400       http_user_agent_settings_.get());
 401
 402   main_context->set_http_transaction_factory(
 403       main_transaction_factory_.get());
 404   main_context->set_job_factory(main_job_factory_.get());
 405   main_context->set_network_delegate(app_network_delegate_.get());
 406   main_context->set_net_log(net_log_);
 407   return main_context;
 408 }
 409
 410 void URLRequestContextFactory::InitializeNetworkDelegates() {
 411   app_network_delegate_->Initialize(false);
 412   LOG(INFO) << "Initialized app network delegate.";
 413   system_network_delegate_->Initialize(false);
 414   LOG(INFO) << "Initialized system network delegate.";
 415 }
 416
 417 }  // namespace shell
 418 }  // namespace chromecast