components/cronet/android/url_request_context_adapter.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 "components/cronet/android/url_request_context_adapter.h"
   6
   7 #include <limits>
   8
   9 #include "base/bind.h"
  10 #include "base/files/file_util.h"
  11 #include "base/message_loop/message_loop.h"
  12 #include "base/single_thread_task_runner.h"
  13 #include "components/cronet/url_request_context_config.h"
  14 #include "net/android/network_change_notifier_factory_android.h"
  15 #include "net/base/net_errors.h"
  16 #include "net/base/net_log_logger.h"
  17 #include "net/base/net_util.h"
  18 #include "net/base/network_change_notifier.h"
  19 #include "net/cert/cert_verifier.h"
  20 #include "net/http/http_auth_handler_factory.h"
  21 #include "net/http/http_network_layer.h"
  22 #include "net/http/http_server_properties.h"
  23 #include "net/proxy/proxy_service.h"
  24 #include "net/ssl/ssl_config_service_defaults.h"
  25 #include "net/url_request/static_http_user_agent_settings.h"
  26 #include "net/url_request/url_request_context_builder.h"
  27 #include "net/url_request/url_request_context_storage.h"
  28 #include "net/url_request/url_request_job_factory_impl.h"
  29
  30 namespace {
  31
  32 // MessageLoop on the main thread, which is where objects that receive Java
  33 // notifications generally live.
  34 base::MessageLoop* g_main_message_loop = nullptr;
  35
  36 net::NetworkChangeNotifier* g_network_change_notifier = nullptr;
  37
  38 class BasicNetworkDelegate : public net::NetworkDelegate {
  39  public:
  40   BasicNetworkDelegate() {}
  41   virtual ~BasicNetworkDelegate() {}
  42
  43  private:
  44   // net::NetworkDelegate implementation.
  45   int OnBeforeURLRequest(net::URLRequest* request,
  46                          const net::CompletionCallback& callback,
  47                          GURL* new_url) override {
  48     return net::OK;
  49   }
  50
  51   int OnBeforeSendHeaders(net::URLRequest* request,
  52                           const net::CompletionCallback& callback,
  53                           net::HttpRequestHeaders* headers) override {
  54     return net::OK;
  55   }
  56
  57   void OnSendHeaders(net::URLRequest* request,
  58                      const net::HttpRequestHeaders& headers) override {}
  59
  60   int OnHeadersReceived(
  61       net::URLRequest* request,
  62       const net::CompletionCallback& callback,
  63       const net::HttpResponseHeaders* original_response_headers,
  64       scoped_refptr<net::HttpResponseHeaders>* _response_headers,
  65       GURL* allowed_unsafe_redirect_url) override {
  66     return net::OK;
  67   }
  68
  69   void OnBeforeRedirect(net::URLRequest* request,
  70                         const GURL& new_location) override {}
  71
  72   void OnResponseStarted(net::URLRequest* request) override {}
  73
  74   void OnRawBytesRead(const net::URLRequest& request,
  75                       int bytes_read) override {}
  76
  77   void OnCompleted(net::URLRequest* request, bool started) override {}
  78
  79   void OnURLRequestDestroyed(net::URLRequest* request) override {}
  80
  81   void OnPACScriptError(int line_number,
  82                         const base::string16& error) override {}
  83
  84   NetworkDelegate::AuthRequiredResponse OnAuthRequired(
  85       net::URLRequest* request,
  86       const net::AuthChallengeInfo& auth_info,
  87       const AuthCallback& callback,
  88       net::AuthCredentials* credentials) override {
  89     return net::NetworkDelegate::AUTH_REQUIRED_RESPONSE_NO_ACTION;
  90   }
  91
  92   bool OnCanGetCookies(const net::URLRequest& request,
  93                        const net::CookieList& cookie_list) override {
  94     return false;
  95   }
  96
  97   bool OnCanSetCookie(const net::URLRequest& request,
  98                       const std::string& cookie_line,
  99                       net::CookieOptions* options) override {
 100     return false;
 101   }
 102
 103   bool OnCanAccessFile(const net::URLRequest& request,
 104                        const base::FilePath& path) const override {
 105     return false;
 106   }
 107
 108   bool OnCanThrottleRequest(
 109       const net::URLRequest& request) const override {
 110     return false;
 111   }
 112
 113   DISALLOW_COPY_AND_ASSIGN(BasicNetworkDelegate);
 114 };
 115
 116 }  // namespace
 117
 118 namespace cronet {
 119
 120 URLRequestContextAdapter::URLRequestContextAdapter(
 121     URLRequestContextAdapterDelegate* delegate,
 122     std::string user_agent) {
 123   delegate_ = delegate;
 124   user_agent_ = user_agent;
 125 }
 126
 127 void URLRequestContextAdapter::Initialize(
 128     scoped_ptr<URLRequestContextConfig> config) {
 129   network_thread_ = new base::Thread("network");
 130   base::Thread::Options options;
 131   options.message_loop_type = base::MessageLoop::TYPE_IO;
 132   network_thread_->StartWithOptions(options);
 133   config_ = config.Pass();
 134 }
 135
 136 void URLRequestContextAdapter::InitRequestContextOnMainThread() {
 137   if (!base::MessageLoop::current()) {
 138     DCHECK(!g_main_message_loop);
 139     g_main_message_loop = new base::MessageLoopForUI();
 140     base::MessageLoopForUI::current()->Start();
 141   }
 142   DCHECK_EQ(g_main_message_loop, base::MessageLoop::current());
 143   if (!g_network_change_notifier) {
 144     net::NetworkChangeNotifier::SetFactory(
 145         new net::NetworkChangeNotifierFactoryAndroid());
 146     g_network_change_notifier = net::NetworkChangeNotifier::Create();
 147   }
 148   proxy_config_service_.reset(net::ProxyService::CreateSystemProxyConfigService(
 149       GetNetworkTaskRunner(), NULL));
 150   GetNetworkTaskRunner()->PostTask(
 151       FROM_HERE,
 152       base::Bind(&URLRequestContextAdapter::InitRequestContextOnNetworkThread,
 153                  this));
 154 }
 155
 156 void URLRequestContextAdapter::InitRequestContextOnNetworkThread() {
 157   DCHECK(GetNetworkTaskRunner()->BelongsToCurrentThread());
 158   DCHECK(config_);
 159   // TODO(mmenke):  Add method to have the builder enable SPDY.
 160   net::URLRequestContextBuilder context_builder;
 161   context_builder.set_network_delegate(new BasicNetworkDelegate());
 162   context_builder.set_proxy_config_service(proxy_config_service_.get());
 163   config_->ConfigureURLRequestContextBuilder(&context_builder);
 164
 165   context_.reset(context_builder.Build());
 166
 167   // Currently (circa M39) enabling QUIC requires setting probability threshold.
 168   if (config_->enable_quic) {
 169     context_->http_server_properties()
 170         ->SetAlternateProtocolProbabilityThreshold(0.0f);
 171     for (size_t hint = 0; hint < config_->quic_hints.size(); ++hint) {
 172       const URLRequestContextConfig::QuicHint& quic_hint =
 173           *config_->quic_hints[hint];
 174       if (quic_hint.host.empty()) {
 175         LOG(ERROR) << "Empty QUIC hint host: " << quic_hint.host;
 176         continue;
 177       }
 178
 179       url::CanonHostInfo host_info;
 180       std::string canon_host(net::CanonicalizeHost(quic_hint.host, &host_info));
 181       if (!host_info.IsIPAddress() &&
 182           !net::IsCanonicalizedHostCompliant(canon_host)) {
 183         LOG(ERROR) << "Invalid QUIC hint host: " << quic_hint.host;
 184         continue;
 185       }
 186
 187       if (quic_hint.port <= std::numeric_limits<uint16>::min() ||
 188           quic_hint.port > std::numeric_limits<uint16>::max()) {
 189         LOG(ERROR) << "Invalid QUIC hint port: "
 190                    << quic_hint.port;
 191         continue;
 192       }
 193
 194       if (quic_hint.alternate_port <= std::numeric_limits<uint16>::min() ||
 195           quic_hint.alternate_port > std::numeric_limits<uint16>::max()) {
 196         LOG(ERROR) << "Invalid QUIC hint alternate port: "
 197                    << quic_hint.alternate_port;
 198         continue;
 199       }
 200
 201       net::HostPortPair quic_hint_host_port_pair(canon_host,
 202                                                  quic_hint.port);
 203       context_->http_server_properties()->SetAlternateProtocol(
 204           quic_hint_host_port_pair,
 205           static_cast<uint16>(quic_hint.alternate_port),
 206           net::AlternateProtocol::QUIC,
 207           1.0f);
 208     }
 209   }
 210   config_.reset(NULL);
 211
 212   if (VLOG_IS_ON(2)) {
 213     net_log_observer_.reset(new NetLogObserver());
 214     context_->net_log()->AddThreadSafeObserver(net_log_observer_.get(),
 215                                                net::NetLog::LOG_ALL_BUT_BYTES);
 216   }
 217
 218   is_context_initialized_ = true;
 219   while (!tasks_waiting_for_context_.empty()) {
 220     tasks_waiting_for_context_.front().Run();
 221     tasks_waiting_for_context_.pop();
 222   }
 223
 224   delegate_->OnContextInitialized(this);
 225 }
 226
 227 void URLRequestContextAdapter::PostTaskToNetworkThread(
 228     const tracked_objects::Location& posted_from,
 229     const RunAfterContextInitTask& callback) {
 230   GetNetworkTaskRunner()->PostTask(
 231       posted_from,
 232       base::Bind(
 233           &URLRequestContextAdapter::RunTaskAfterContextInitOnNetworkThread,
 234           this,
 235           callback));
 236 }
 237
 238 void URLRequestContextAdapter::RunTaskAfterContextInitOnNetworkThread(
 239     const RunAfterContextInitTask& callback) {
 240   DCHECK(GetNetworkTaskRunner()->BelongsToCurrentThread());
 241   if (is_context_initialized_) {
 242     callback.Run();
 243     return;
 244   }
 245   tasks_waiting_for_context_.push(callback);
 246 }
 247
 248 URLRequestContextAdapter::~URLRequestContextAdapter() {
 249   DCHECK(GetNetworkTaskRunner()->BelongsToCurrentThread());
 250   if (net_log_observer_) {
 251     context_->net_log()->RemoveThreadSafeObserver(net_log_observer_.get());
 252     net_log_observer_.reset();
 253   }
 254   StopNetLogHelper();
 255   // TODO(mef): Ensure that |network_thread_| is destroyed properly.
 256 }
 257
 258 const std::string& URLRequestContextAdapter::GetUserAgent(
 259     const GURL& url) const {
 260   return user_agent_;
 261 }
 262
 263 net::URLRequestContext* URLRequestContextAdapter::GetURLRequestContext() {
 264   DCHECK(GetNetworkTaskRunner()->BelongsToCurrentThread());
 265   if (!context_) {
 266     LOG(ERROR) << "URLRequestContext is not set up";
 267   }
 268   return context_.get();
 269 }
 270
 271 scoped_refptr<base::SingleThreadTaskRunner>
 272 URLRequestContextAdapter::GetNetworkTaskRunner() const {
 273   return network_thread_->message_loop_proxy();
 274 }
 275
 276 void URLRequestContextAdapter::StartNetLogToFile(const std::string& file_name) {
 277   PostTaskToNetworkThread(
 278       FROM_HERE,
 279       base::Bind(
 280           &URLRequestContextAdapter::StartNetLogToFileHelper, this, file_name));
 281 }
 282
 283 void URLRequestContextAdapter::StopNetLog() {
 284   PostTaskToNetworkThread(
 285       FROM_HERE, base::Bind(&URLRequestContextAdapter::StopNetLogHelper, this));
 286 }
 287
 288 void URLRequestContextAdapter::StartNetLogToFileHelper(
 289     const std::string& file_name) {
 290   DCHECK(GetNetworkTaskRunner()->BelongsToCurrentThread());
 291   // Do nothing if already logging to a file.
 292   if (net_log_logger_)
 293     return;
 294
 295   base::FilePath file_path(file_name);
 296   FILE* file = base::OpenFile(file_path, "w");
 297   if (!file)
 298     return;
 299
 300   scoped_ptr<base::Value> constants(net::NetLogLogger::GetConstants());
 301   net_log_logger_.reset(new net::NetLogLogger(file, *constants));
 302   net_log_logger_->StartObserving(context_->net_log());
 303 }
 304
 305 void URLRequestContextAdapter::StopNetLogHelper() {
 306   DCHECK(GetNetworkTaskRunner()->BelongsToCurrentThread());
 307   if (net_log_logger_) {
 308     net_log_logger_->StopObserving();
 309     net_log_logger_.reset();
 310   }
 311 }
 312
 313 void NetLogObserver::OnAddEntry(const net::NetLog::Entry& entry) {
 314   VLOG(2) << "Net log entry: type=" << entry.type()
 315           << ", source=" << entry.source().type << ", phase=" << entry.phase();
 316 }
 317
 318 }  // namespace cronet