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_browser_context.h"
10 #include "android_webview/browser/aw_content_browser_client.h"
11 #include "android_webview/browser/aw_request_interceptor.h"
12 #include "android_webview/browser/net/aw_network_delegate.h"
13 #include "android_webview/browser/net/aw_url_request_job_factory.h"
14 #include "android_webview/browser/net/init_native_callback.h"
15 #include "android_webview/common/aw_content_client.h"
16 #include "base/command_line.h"
17 #include "base/strings/string_number_conversions.h"
18 #include "base/threading/sequenced_worker_pool.h"
19 #include "base/threading/worker_pool.h"
20 #include "components/data_reduction_proxy/browser/data_reduction_proxy_auth_request_handler.h"
21 #include "components/data_reduction_proxy/browser/data_reduction_proxy_config_service.h"
22 #include "components/data_reduction_proxy/browser/data_reduction_proxy_settings.h"
23 #include "content/public/browser/browser_thread.h"
24 #include "content/public/browser/content_browser_client.h"
25 #include "content/public/browser/cookie_store_factory.h"
26 #include "content/public/common/content_client.h"
27 #include "content/public/common/content_switches.h"
28 #include "content/public/common/url_constants.h"
29 #include "net/base/cache_type.h"
30 #include "net/base/net_log.h"
31 #include "net/cookies/cookie_store.h"
32 #include "net/dns/mapped_host_resolver.h"
33 #include "net/http/http_cache.h"
34 #include "net/http/http_stream_factory.h"
35 #include "net/proxy/proxy_service.h"
36 #include "net/socket/next_proto.h"
37 #include "net/ssl/default_channel_id_store.h"
38 #include "net/url_request/data_protocol_handler.h"
39 #include "net/url_request/file_protocol_handler.h"
40 #include "net/url_request/url_request_context_builder.h"
41 #include "net/url_request/url_request_context.h"
42 #include "net/url_request/url_request_intercepting_job_factory.h"
43 #include "net/url_request/url_request_interceptor.h"
44
45 using content::BrowserThread;
46 using data_reduction_proxy::DataReductionProxySettings;
47
48 namespace android_webview {
49
50
51 namespace {
52
ApplyCmdlineOverridesToURLRequestContextBuilder(net::URLRequestContextBuilder * builder)53 void ApplyCmdlineOverridesToURLRequestContextBuilder(
54 net::URLRequestContextBuilder* builder) {
55 const CommandLine& command_line = *CommandLine::ForCurrentProcess();
56 if (command_line.HasSwitch(switches::kHostResolverRules)) {
57 // If hostname remappings were specified on the command-line, layer these
58 // rules on top of the real host resolver. This allows forwarding all
59 // requests through a designated test server.
60 scoped_ptr<net::MappedHostResolver> host_resolver(
61 new net::MappedHostResolver(
62 net::HostResolver::CreateDefaultResolver(NULL)));
63 host_resolver->SetRulesFromString(
64 command_line.GetSwitchValueASCII(switches::kHostResolverRules));
65 builder->set_host_resolver(host_resolver.release());
66 }
67 }
68
ApplyCmdlineOverridesToNetworkSessionParams(net::HttpNetworkSession::Params * params)69 void ApplyCmdlineOverridesToNetworkSessionParams(
70 net::HttpNetworkSession::Params* params) {
71 int value;
72 const CommandLine& command_line = *CommandLine::ForCurrentProcess();
73 if (command_line.HasSwitch(switches::kTestingFixedHttpPort)) {
74 base::StringToInt(command_line.GetSwitchValueASCII(
75 switches::kTestingFixedHttpPort), &value);
76 params->testing_fixed_http_port = value;
77 }
78 if (command_line.HasSwitch(switches::kTestingFixedHttpsPort)) {
79 base::StringToInt(command_line.GetSwitchValueASCII(
80 switches::kTestingFixedHttpsPort), &value);
81 params->testing_fixed_https_port = value;
82 }
83 if (command_line.HasSwitch(switches::kIgnoreCertificateErrors)) {
84 params->ignore_certificate_errors = true;
85 }
86 }
87
PopulateNetworkSessionParams(net::URLRequestContext * context,net::HttpNetworkSession::Params * params)88 void PopulateNetworkSessionParams(
89 net::URLRequestContext* context,
90 net::HttpNetworkSession::Params* params) {
91 params->host_resolver = context->host_resolver();
92 params->cert_verifier = context->cert_verifier();
93 params->channel_id_service = context->channel_id_service();
94 params->transport_security_state = context->transport_security_state();
95 params->proxy_service = context->proxy_service();
96 params->ssl_config_service = context->ssl_config_service();
97 params->http_auth_handler_factory = context->http_auth_handler_factory();
98 params->network_delegate = context->network_delegate();
99 params->http_server_properties = context->http_server_properties();
100 params->net_log = context->net_log();
101 // TODO(sgurun) remove once crbug.com/329681 is fixed.
102 params->next_protos = net::NextProtosSpdy31();
103 params->use_alternate_protocols = true;
104
105 ApplyCmdlineOverridesToNetworkSessionParams(params);
106 }
107
CreateJobFactory(content::ProtocolHandlerMap * protocol_handlers,content::URLRequestInterceptorScopedVector request_interceptors)108 scoped_ptr<net::URLRequestJobFactory> CreateJobFactory(
109 content::ProtocolHandlerMap* protocol_handlers,
110 content::URLRequestInterceptorScopedVector request_interceptors) {
111 scoped_ptr<AwURLRequestJobFactory> aw_job_factory(new AwURLRequestJobFactory);
112 bool set_protocol = aw_job_factory->SetProtocolHandler(
113 url::kFileScheme,
114 new net::FileProtocolHandler(
115 content::BrowserThread::GetBlockingPool()->
116 GetTaskRunnerWithShutdownBehavior(
117 base::SequencedWorkerPool::SKIP_ON_SHUTDOWN)));
118 DCHECK(set_protocol);
119 set_protocol = aw_job_factory->SetProtocolHandler(
120 url::kDataScheme, new net::DataProtocolHandler());
121 DCHECK(set_protocol);
122 set_protocol = aw_job_factory->SetProtocolHandler(
123 url::kBlobScheme,
124 (*protocol_handlers)[url::kBlobScheme].release());
125 DCHECK(set_protocol);
126 set_protocol = aw_job_factory->SetProtocolHandler(
127 url::kFileSystemScheme,
128 (*protocol_handlers)[url::kFileSystemScheme].release());
129 DCHECK(set_protocol);
130 set_protocol = aw_job_factory->SetProtocolHandler(
131 content::kChromeUIScheme,
132 (*protocol_handlers)[content::kChromeUIScheme].release());
133 DCHECK(set_protocol);
134 set_protocol = aw_job_factory->SetProtocolHandler(
135 content::kChromeDevToolsScheme,
136 (*protocol_handlers)[content::kChromeDevToolsScheme].release());
137 DCHECK(set_protocol);
138 protocol_handlers->clear();
139
140 // Note that even though the content:// scheme handler is created here,
141 // it cannot be used by child processes until access to it is granted via
142 // ChildProcessSecurityPolicy::GrantScheme(). This is done in
143 // AwContentBrowserClient.
144 request_interceptors.push_back(
145 CreateAndroidContentRequestInterceptor().release());
146 request_interceptors.push_back(
147 CreateAndroidAssetFileRequestInterceptor().release());
148 // The AwRequestInterceptor must come after the content and asset file job
149 // factories. This for WebViewClassic compatibility where it was not
150 // possible to intercept resource loads to resolvable content:// and
151 // file:// URIs.
152 // This logical dependency is also the reason why the Content
153 // URLRequestInterceptor has to be added as an interceptor rather than as a
154 // ProtocolHandler.
155 request_interceptors.push_back(new AwRequestInterceptor());
156
157 // The chain of responsibility will execute the handlers in reverse to the
158 // order in which the elements of the chain are created.
159 scoped_ptr<net::URLRequestJobFactory> job_factory(aw_job_factory.Pass());
160 for (content::URLRequestInterceptorScopedVector::reverse_iterator i =
161 request_interceptors.rbegin();
162 i != request_interceptors.rend();
163 ++i) {
164 job_factory.reset(new net::URLRequestInterceptingJobFactory(
165 job_factory.Pass(), make_scoped_ptr(*i)));
166 }
167 request_interceptors.weak_clear();
168
169 return job_factory.Pass();
170 }
171
172 } // namespace
173
AwURLRequestContextGetter(const base::FilePath & partition_path,net::CookieStore * cookie_store,scoped_ptr<data_reduction_proxy::DataReductionProxyConfigService> config_service)174 AwURLRequestContextGetter::AwURLRequestContextGetter(
175 const base::FilePath& partition_path, net::CookieStore* cookie_store,
176 scoped_ptr<data_reduction_proxy::DataReductionProxyConfigService>
177 config_service)
178 : partition_path_(partition_path),
179 cookie_store_(cookie_store),
180 net_log_(new net::NetLog()) {
181 data_reduction_proxy_config_service_ = config_service.Pass();
182 // CreateSystemProxyConfigService for Android must be called on main thread.
183 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
184 }
185
~AwURLRequestContextGetter()186 AwURLRequestContextGetter::~AwURLRequestContextGetter() {
187 }
188
InitializeURLRequestContext()189 void AwURLRequestContextGetter::InitializeURLRequestContext() {
190 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
191 DCHECK(!url_request_context_);
192
193 net::URLRequestContextBuilder builder;
194 builder.set_user_agent(GetUserAgent());
195 AwNetworkDelegate* aw_network_delegate = new AwNetworkDelegate();
196 builder.set_network_delegate(aw_network_delegate);
197 #if !defined(DISABLE_FTP_SUPPORT)
198 builder.set_ftp_enabled(false); // Android WebView does not support ftp yet.
199 #endif
200 DCHECK(data_reduction_proxy_config_service_.get());
201 // Android provides a local HTTP proxy that handles all the proxying.
202 // Create the proxy without a resolver since we rely on this local HTTP proxy.
203 // TODO(sgurun) is this behavior guaranteed through SDK?
204 builder.set_proxy_service(
205 net::ProxyService::CreateWithoutProxyResolver(
206 data_reduction_proxy_config_service_.release(),
207 net_log_.get()));
208 builder.set_accept_language(net::HttpUtil::GenerateAcceptLanguageHeader(
209 AwContentBrowserClient::GetAcceptLangsImpl()));
210 builder.set_net_log(net_log_.get());
211 builder.set_channel_id_enabled(false);
212 ApplyCmdlineOverridesToURLRequestContextBuilder(&builder);
213
214 url_request_context_.reset(builder.Build());
215 // TODO(mnaganov): Fix URLRequestContextBuilder to use proper threads.
216 net::HttpNetworkSession::Params network_session_params;
217
218 PopulateNetworkSessionParams(url_request_context_.get(),
219 &network_session_params);
220
221 net::HttpCache* main_cache = new net::HttpCache(
222 network_session_params,
223 new net::HttpCache::DefaultBackend(
224 net::DISK_CACHE,
225 net::CACHE_BACKEND_SIMPLE,
226 partition_path_.Append(FILE_PATH_LITERAL("Cache")),
227 20 * 1024 * 1024, // 20M
228 BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE)));
229
230 AwBrowserContext* browser_context = AwBrowserContext::GetDefault();
231 DCHECK(browser_context);
232 DataReductionProxySettings* data_reduction_proxy_settings =
233 browser_context->GetDataReductionProxySettings();
234 DCHECK(data_reduction_proxy_settings);
235 data_reduction_proxy_auth_request_handler_.reset(
236 new data_reduction_proxy::DataReductionProxyAuthRequestHandler(
237 data_reduction_proxy::kClientAndroidWebview,
238 data_reduction_proxy_settings->params(),
239 BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
240
241 // Compression statistics are not gathered for WebView, so
242 // DataReductionProxyStatisticsPrefs is not instantiated and passed to the
243 // network delegate.
244 aw_network_delegate->set_data_reduction_proxy_params(
245 data_reduction_proxy_settings->params());
246 aw_network_delegate->set_data_reduction_proxy_auth_request_handler(
247 data_reduction_proxy_auth_request_handler_.get());
248
249 main_http_factory_.reset(main_cache);
250 url_request_context_->set_http_transaction_factory(main_cache);
251 url_request_context_->set_cookie_store(cookie_store_);
252
253 job_factory_ = CreateJobFactory(&protocol_handlers_,
254 request_interceptors_.Pass());
255 url_request_context_->set_job_factory(job_factory_.get());
256 }
257
GetURLRequestContext()258 net::URLRequestContext* AwURLRequestContextGetter::GetURLRequestContext() {
259 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
260 if (!url_request_context_)
261 InitializeURLRequestContext();
262
263 return url_request_context_.get();
264 }
265
266 scoped_refptr<base::SingleThreadTaskRunner>
GetNetworkTaskRunner() const267 AwURLRequestContextGetter::GetNetworkTaskRunner() const {
268 return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
269 }
270
SetHandlersAndInterceptors(content::ProtocolHandlerMap * protocol_handlers,content::URLRequestInterceptorScopedVector request_interceptors)271 void AwURLRequestContextGetter::SetHandlersAndInterceptors(
272 content::ProtocolHandlerMap* protocol_handlers,
273 content::URLRequestInterceptorScopedVector request_interceptors) {
274 std::swap(protocol_handlers_, *protocol_handlers);
275 request_interceptors_.swap(request_interceptors);
276 }
277
278 data_reduction_proxy::DataReductionProxyAuthRequestHandler*
GetDataReductionProxyAuthRequestHandler() const279 AwURLRequestContextGetter::GetDataReductionProxyAuthRequestHandler() const {
280 return data_reduction_proxy_auth_request_handler_.get();
281 }
282
GetNetLog()283 net::NetLog* AwURLRequestContextGetter::GetNetLog() {
284 return net_log_.get();
285 }
286
SetKeyOnIO(const std::string & key)287 void AwURLRequestContextGetter::SetKeyOnIO(const std::string& key) {
288 DCHECK(data_reduction_proxy_auth_request_handler_);
289 data_reduction_proxy_auth_request_handler_->InitAuthentication(key);
290 }
291
292 } // namespace android_webview
293