1 // Copyright (c) 2012 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 "android_webview/browser/net/aw_url_request_context_getter.h" 6 7 #include <vector> 8 9 #include "android_webview/browser/aw_content_browser_client.h" 10 #include "android_webview/browser/aw_request_interceptor.h" 11 #include "android_webview/browser/net/aw_network_delegate.h" 12 #include "android_webview/browser/net/aw_url_request_job_factory.h" 13 #include "android_webview/browser/net/init_native_callback.h" 14 #include "android_webview/common/aw_switches.h" 15 #include "base/command_line.h" 16 #include "base/strings/string_number_conversions.h" 17 #include "base/threading/sequenced_worker_pool.h" 18 #include "content/public/browser/browser_thread.h" 19 #include "content/public/browser/content_browser_client.h" 20 #include "content/public/browser/cookie_store_factory.h" 21 #include "content/public/common/content_client.h" 22 #include "content/public/common/content_switches.h" 23 #include "content/public/common/url_constants.h" 24 #include "net/base/cache_type.h" 25 #include "net/cookies/cookie_store.h" 26 #include "net/dns/mapped_host_resolver.h" 27 #include "net/http/http_cache.h" 28 #include "net/http/http_stream_factory.h" 29 #include "net/proxy/proxy_service.h" 30 #include "net/url_request/data_protocol_handler.h" 31 #include "net/url_request/file_protocol_handler.h" 32 #include "net/url_request/protocol_intercept_job_factory.h" 33 #include "net/url_request/url_request_context_builder.h" 34 #include "net/url_request/url_request_context.h" 35 36 using content::BrowserThread; 37 38 namespace android_webview { 39 40 41 namespace { 42 43 void ApplyCmdlineOverridesToURLRequestContextBuilder( 44 net::URLRequestContextBuilder* builder) { 45 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); 46 if (command_line.HasSwitch(switches::kHostResolverRules)) { 47 // If hostname remappings were specified on the command-line, layer these 48 // rules on top of the real host resolver. This allows forwarding all 49 // requests through a designated test server. 50 scoped_ptr<net::MappedHostResolver> host_resolver( 51 new net::MappedHostResolver( 52 net::HostResolver::CreateDefaultResolver(NULL))); 53 host_resolver->SetRulesFromString( 54 command_line.GetSwitchValueASCII(switches::kHostResolverRules)); 55 builder->set_host_resolver(host_resolver.release()); 56 } 57 } 58 59 void ApplyCmdlineOverridesToNetworkSessionParams( 60 net::HttpNetworkSession::Params* params) { 61 int value; 62 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); 63 if (command_line.HasSwitch(switches::kTestingFixedHttpPort)) { 64 base::StringToInt(command_line.GetSwitchValueASCII( 65 switches::kTestingFixedHttpPort), &value); 66 params->testing_fixed_http_port = value; 67 } 68 if (command_line.HasSwitch(switches::kTestingFixedHttpsPort)) { 69 base::StringToInt(command_line.GetSwitchValueASCII( 70 switches::kTestingFixedHttpsPort), &value); 71 params->testing_fixed_https_port = value; 72 } 73 } 74 75 void PopulateNetworkSessionParams( 76 net::URLRequestContext* context, 77 net::HttpNetworkSession::Params* params) { 78 params->host_resolver = context->host_resolver(); 79 params->cert_verifier = context->cert_verifier(); 80 params->server_bound_cert_service = context->server_bound_cert_service(); 81 params->transport_security_state = context->transport_security_state(); 82 params->proxy_service = context->proxy_service(); 83 params->ssl_config_service = context->ssl_config_service(); 84 params->http_auth_handler_factory = context->http_auth_handler_factory(); 85 params->network_delegate = context->network_delegate(); 86 params->http_server_properties = context->http_server_properties(); 87 params->net_log = context->net_log(); 88 ApplyCmdlineOverridesToNetworkSessionParams(params); 89 } 90 91 scoped_ptr<net::URLRequestJobFactory> CreateJobFactory( 92 content::ProtocolHandlerMap* protocol_handlers) { 93 scoped_ptr<AwURLRequestJobFactory> aw_job_factory(new AwURLRequestJobFactory); 94 bool set_protocol = aw_job_factory->SetProtocolHandler( 95 chrome::kFileScheme, 96 new net::FileProtocolHandler( 97 content::BrowserThread::GetBlockingPool()-> 98 GetTaskRunnerWithShutdownBehavior( 99 base::SequencedWorkerPool::SKIP_ON_SHUTDOWN))); 100 DCHECK(set_protocol); 101 set_protocol = aw_job_factory->SetProtocolHandler( 102 chrome::kDataScheme, new net::DataProtocolHandler()); 103 DCHECK(set_protocol); 104 set_protocol = aw_job_factory->SetProtocolHandler( 105 chrome::kBlobScheme, (*protocol_handlers)[chrome::kBlobScheme].release()); 106 DCHECK(set_protocol); 107 set_protocol = aw_job_factory->SetProtocolHandler( 108 chrome::kFileSystemScheme, 109 (*protocol_handlers)[chrome::kFileSystemScheme].release()); 110 DCHECK(set_protocol); 111 set_protocol = aw_job_factory->SetProtocolHandler( 112 chrome::kChromeUIScheme, 113 (*protocol_handlers)[chrome::kChromeUIScheme].release()); 114 DCHECK(set_protocol); 115 set_protocol = aw_job_factory->SetProtocolHandler( 116 chrome::kChromeDevToolsScheme, 117 (*protocol_handlers)[chrome::kChromeDevToolsScheme].release()); 118 DCHECK(set_protocol); 119 protocol_handlers->clear(); 120 121 // Create a chain of URLRequestJobFactories. The handlers will be invoked 122 // in the order in which they appear in the protocol_handlers vector. 123 typedef std::vector<net::URLRequestJobFactory::ProtocolHandler*> 124 ProtocolHandlerVector; 125 ProtocolHandlerVector protocol_interceptors; 126 127 // Note that even though the content:// scheme handler is created here, 128 // it cannot be used by child processes until access to it is granted via 129 // ChildProcessSecurityPolicy::GrantScheme(). This is done in 130 // AwContentBrowserClient. 131 protocol_interceptors.push_back( 132 CreateAndroidContentProtocolHandler().release()); 133 protocol_interceptors.push_back( 134 CreateAndroidAssetFileProtocolHandler().release()); 135 // The AwRequestInterceptor must come after the content and asset file job 136 // factories. This for WebViewClassic compatibility where it was not 137 // possible to intercept resource loads to resolvable content:// and 138 // file:// URIs. 139 // This logical dependency is also the reason why the Content 140 // ProtocolHandler has to be added as a ProtocolInterceptJobFactory rather 141 // than via SetProtocolHandler. 142 protocol_interceptors.push_back(new AwRequestInterceptor()); 143 144 // The chain of responsibility will execute the handlers in reverse to the 145 // order in which the elements of the chain are created. 146 scoped_ptr<net::URLRequestJobFactory> job_factory(aw_job_factory.Pass()); 147 for (ProtocolHandlerVector::reverse_iterator 148 i = protocol_interceptors.rbegin(); 149 i != protocol_interceptors.rend(); 150 ++i) { 151 job_factory.reset(new net::ProtocolInterceptJobFactory( 152 job_factory.Pass(), make_scoped_ptr(*i))); 153 } 154 155 return job_factory.Pass(); 156 } 157 158 } // namespace 159 160 AwURLRequestContextGetter::AwURLRequestContextGetter( 161 const base::FilePath& partition_path, net::CookieStore* cookie_store) 162 : partition_path_(partition_path), 163 cookie_store_(cookie_store), 164 proxy_config_service_(net::ProxyService::CreateSystemProxyConfigService( 165 GetNetworkTaskRunner(), 166 NULL /* Ignored on Android */)) { 167 // CreateSystemProxyConfigService for Android must be called on main thread. 168 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 169 } 170 171 AwURLRequestContextGetter::~AwURLRequestContextGetter() { 172 } 173 174 void AwURLRequestContextGetter::InitializeURLRequestContext() { 175 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); 176 DCHECK(!url_request_context_); 177 178 net::URLRequestContextBuilder builder; 179 builder.set_user_agent(content::GetUserAgent(GURL())); 180 builder.set_network_delegate(new AwNetworkDelegate()); 181 #if !defined(DISABLE_FTP_SUPPORT) 182 builder.set_ftp_enabled(false); // Android WebView does not support ftp yet. 183 #endif 184 builder.set_proxy_config_service(proxy_config_service_.release()); 185 builder.set_accept_language(net::HttpUtil::GenerateAcceptLanguageHeader( 186 AwContentBrowserClient::GetAcceptLangsImpl())); 187 ApplyCmdlineOverridesToURLRequestContextBuilder(&builder); 188 189 url_request_context_.reset(builder.Build()); 190 // TODO(mnaganov): Fix URLRequestContextBuilder to use proper threads. 191 net::HttpNetworkSession::Params network_session_params; 192 193 net::BackendType cache_type = net::CACHE_BACKEND_SIMPLE; 194 if (CommandLine::ForCurrentProcess()->HasSwitch( 195 switches::kDisableSimpleCache)) { 196 cache_type = net::CACHE_BACKEND_BLOCKFILE; 197 } 198 PopulateNetworkSessionParams(url_request_context_.get(), 199 &network_session_params); 200 201 net::HttpCache* main_cache = new net::HttpCache( 202 network_session_params, 203 new net::HttpCache::DefaultBackend( 204 net::DISK_CACHE, 205 cache_type, 206 partition_path_.Append(FILE_PATH_LITERAL("Cache")), 207 20 * 1024 * 1024, // 20M 208 BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE))); 209 main_http_factory_.reset(main_cache); 210 url_request_context_->set_http_transaction_factory(main_cache); 211 url_request_context_->set_cookie_store(cookie_store_); 212 213 job_factory_ = CreateJobFactory(&protocol_handlers_); 214 url_request_context_->set_job_factory(job_factory_.get()); 215 216 // TODO(sgurun) remove once crbug.com/329681 is fixed. Should be 217 // called only once. 218 net::HttpStreamFactory::EnableNpnSpdy31(); 219 } 220 221 net::URLRequestContext* AwURLRequestContextGetter::GetURLRequestContext() { 222 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); 223 if (!url_request_context_) 224 InitializeURLRequestContext(); 225 226 return url_request_context_.get(); 227 } 228 229 scoped_refptr<base::SingleThreadTaskRunner> 230 AwURLRequestContextGetter::GetNetworkTaskRunner() const { 231 return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO); 232 } 233 234 void AwURLRequestContextGetter::SetProtocolHandlers( 235 content::ProtocolHandlerMap* protocol_handlers) { 236 std::swap(protocol_handlers_, *protocol_handlers); 237 } 238 239 } // namespace android_webview 240
