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 "chrome/browser/ui/webui/devtools_ui.h" 6 7 #include <string> 8 9 #include "base/command_line.h" 10 #include "base/memory/ref_counted_memory.h" 11 #include "base/memory/scoped_ptr.h" 12 #include "base/strings/string_util.h" 13 #include "base/strings/stringprintf.h" 14 #include "chrome/browser/devtools/device/devtools_android_bridge.h" 15 #include "chrome/browser/devtools/devtools_target_impl.h" 16 #include "chrome/browser/profiles/profile.h" 17 #include "chrome/common/chrome_switches.h" 18 #include "chrome/common/url_constants.h" 19 #include "content/public/browser/browser_thread.h" 20 #include "content/public/browser/devtools_http_handler.h" 21 #include "content/public/browser/navigation_controller.h" 22 #include "content/public/browser/navigation_details.h" 23 #include "content/public/browser/navigation_entry.h" 24 #include "content/public/browser/url_data_source.h" 25 #include "content/public/browser/web_contents.h" 26 #include "content/public/browser/web_ui.h" 27 #include "net/url_request/url_fetcher.h" 28 #include "net/url_request/url_fetcher_delegate.h" 29 #include "net/url_request/url_request_context_getter.h" 30 #include "ui/base/resource/resource_bundle.h" 31 32 using content::BrowserThread; 33 using content::WebContents; 34 35 namespace { 36 37 std::string PathWithoutParams(const std::string& path) { 38 return GURL(std::string("chrome-devtools://devtools/") + path) 39 .path().substr(1); 40 } 41 42 const char kRemoteFrontendDomain[] = "chrome-devtools-frontend.appspot.com"; 43 const char kRemoteFrontendBase[] = 44 "https://chrome-devtools-frontend.appspot.com/"; 45 const char kHttpNotFound[] = "HTTP/1.1 404 Not Found\n\n"; 46 47 #if defined(DEBUG_DEVTOOLS) 48 // Local frontend url provided by InspectUI. 49 const char kFallbackFrontendURL[] = 50 "chrome-devtools://devtools/bundled/devtools.html"; 51 #else 52 // URL causing the DevTools window to display a plain text warning. 53 const char kFallbackFrontendURL[] = 54 "data:text/plain,Cannot load DevTools frontend from an untrusted origin"; 55 #endif // defined(DEBUG_DEVTOOLS) 56 57 const char kRemoteOpenPrefix[] = "remote/open"; 58 59 #if defined(DEBUG_DEVTOOLS) 60 const char kLocalSerial[] = "local"; 61 #endif // defined(DEBUG_DEVTOOLS) 62 63 // FetchRequest --------------------------------------------------------------- 64 65 class FetchRequest : public net::URLFetcherDelegate { 66 public: 67 FetchRequest(net::URLRequestContextGetter* request_context, 68 const GURL& url, 69 const content::URLDataSource::GotDataCallback& callback); 70 71 private: 72 virtual ~FetchRequest() {} 73 virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE; 74 scoped_ptr<net::URLFetcher> fetcher_; 75 content::URLDataSource::GotDataCallback callback_; 76 }; 77 78 FetchRequest::FetchRequest( 79 net::URLRequestContextGetter* request_context, 80 const GURL& url, 81 const content::URLDataSource::GotDataCallback& callback) 82 : callback_(callback) { 83 if (!url.is_valid()) { 84 OnURLFetchComplete(NULL); 85 return; 86 } 87 88 fetcher_.reset(net::URLFetcher::Create(url, net::URLFetcher::GET, this)); 89 fetcher_->SetRequestContext(request_context); 90 fetcher_->Start(); 91 } 92 93 void FetchRequest::OnURLFetchComplete(const net::URLFetcher* source) { 94 std::string response; 95 if (source) 96 source->GetResponseAsString(&response); 97 else 98 response = kHttpNotFound; 99 100 callback_.Run(base::RefCountedString::TakeString(&response)); 101 delete this; 102 } 103 104 // DevToolsDataSource --------------------------------------------------------- 105 106 std::string GetMimeTypeForPath(const std::string& path) { 107 std::string filename = PathWithoutParams(path); 108 if (EndsWith(filename, ".html", false)) { 109 return "text/html"; 110 } else if (EndsWith(filename, ".css", false)) { 111 return "text/css"; 112 } else if (EndsWith(filename, ".js", false)) { 113 return "application/javascript"; 114 } else if (EndsWith(filename, ".png", false)) { 115 return "image/png"; 116 } else if (EndsWith(filename, ".gif", false)) { 117 return "image/gif"; 118 } else if (EndsWith(filename, ".manifest", false)) { 119 return "text/cache-manifest"; 120 } 121 return "text/html"; 122 } 123 124 // An URLDataSource implementation that handles chrome-devtools://devtools/ 125 // requests. Three types of requests could be handled based on the URL path: 126 // 1. /bundled/: bundled DevTools frontend is served. 127 // 2. /remote/: remote DevTools frontend is served from App Engine. 128 // 3. /remote/open/: query is URL which is opened on remote device. 129 class DevToolsDataSource : public content::URLDataSource { 130 public: 131 explicit DevToolsDataSource(net::URLRequestContextGetter* request_context); 132 133 // content::URLDataSource implementation. 134 virtual std::string GetSource() const OVERRIDE; 135 136 virtual void StartDataRequest( 137 const std::string& path, 138 int render_process_id, 139 int render_frame_id, 140 const content::URLDataSource::GotDataCallback& callback) OVERRIDE; 141 142 private: 143 // content::URLDataSource overrides. 144 virtual std::string GetMimeType(const std::string& path) const OVERRIDE; 145 virtual bool ShouldAddContentSecurityPolicy() const OVERRIDE; 146 virtual bool ShouldServeMimeTypeAsContentTypeHeader() const OVERRIDE; 147 148 // Serves bundled DevTools frontend from ResourceBundle. 149 void StartBundledDataRequest( 150 const std::string& path, 151 int render_process_id, 152 int render_frame_id, 153 const content::URLDataSource::GotDataCallback& callback); 154 155 // Serves remote DevTools frontend from hard-coded App Engine domain. 156 void StartRemoteDataRequest( 157 const std::string& path, 158 int render_process_id, 159 int render_frame_id, 160 const content::URLDataSource::GotDataCallback& callback); 161 162 virtual ~DevToolsDataSource() {} 163 scoped_refptr<net::URLRequestContextGetter> request_context_; 164 165 DISALLOW_COPY_AND_ASSIGN(DevToolsDataSource); 166 }; 167 168 DevToolsDataSource::DevToolsDataSource( 169 net::URLRequestContextGetter* request_context) 170 : request_context_(request_context) { 171 } 172 173 std::string DevToolsDataSource::GetSource() const { 174 return chrome::kChromeUIDevToolsHost; 175 } 176 177 void DevToolsDataSource::StartDataRequest( 178 const std::string& path, 179 int render_process_id, 180 int render_frame_id, 181 const content::URLDataSource::GotDataCallback& callback) { 182 // Serve request from local bundle. 183 std::string bundled_path_prefix(chrome::kChromeUIDevToolsBundledPath); 184 bundled_path_prefix += "/"; 185 if (StartsWithASCII(path, bundled_path_prefix, false)) { 186 StartBundledDataRequest(path.substr(bundled_path_prefix.length()), 187 render_process_id, render_frame_id, callback); 188 return; 189 } 190 191 // Serve static response while connecting to the remote device. 192 if (StartsWithASCII(path, kRemoteOpenPrefix, false)) { 193 if (!CommandLine::ForCurrentProcess()->HasSwitch( 194 switches::kEnableDevToolsExperiments)) { 195 callback.Run(NULL); 196 return; 197 } 198 std::string response = "Connecting to the device..."; 199 callback.Run(base::RefCountedString::TakeString(&response)); 200 return; 201 } 202 203 // Serve request from remote location. 204 std::string remote_path_prefix(chrome::kChromeUIDevToolsRemotePath); 205 remote_path_prefix += "/"; 206 if (StartsWithASCII(path, remote_path_prefix, false)) { 207 StartRemoteDataRequest(path.substr(remote_path_prefix.length()), 208 render_process_id, render_frame_id, callback); 209 return; 210 } 211 212 callback.Run(NULL); 213 } 214 215 std::string DevToolsDataSource::GetMimeType(const std::string& path) const { 216 return GetMimeTypeForPath(path); 217 } 218 219 bool DevToolsDataSource::ShouldAddContentSecurityPolicy() const { 220 return false; 221 } 222 223 bool DevToolsDataSource::ShouldServeMimeTypeAsContentTypeHeader() const { 224 return true; 225 } 226 227 void DevToolsDataSource::StartBundledDataRequest( 228 const std::string& path, 229 int render_process_id, 230 int render_frame_id, 231 const content::URLDataSource::GotDataCallback& callback) { 232 std::string filename = PathWithoutParams(path); 233 234 int resource_id = 235 content::DevToolsHttpHandler::GetFrontendResourceId(filename); 236 237 DLOG_IF(WARNING, -1 == resource_id) << "Unable to find dev tool resource: " 238 << filename << ". If you compiled with debug_devtools=1, try running" 239 " with --debug-devtools."; 240 const ResourceBundle& rb = ResourceBundle::GetSharedInstance(); 241 scoped_refptr<base::RefCountedStaticMemory> bytes(rb.LoadDataResourceBytes( 242 resource_id)); 243 callback.Run(bytes.get()); 244 } 245 246 void DevToolsDataSource::StartRemoteDataRequest( 247 const std::string& path, 248 int render_process_id, 249 int render_frame_id, 250 const content::URLDataSource::GotDataCallback& callback) { 251 GURL url = GURL(kRemoteFrontendBase + path); 252 CHECK_EQ(url.host(), kRemoteFrontendDomain); 253 new FetchRequest(request_context_.get(), url, callback); 254 } 255 256 // OpenRemotePageRequest ------------------------------------------------------ 257 258 class OpenRemotePageRequest : public DevToolsAndroidBridge::DeviceListListener { 259 public: 260 OpenRemotePageRequest( 261 Profile* profile, 262 const std::string url, 263 const DevToolsAndroidBridge::RemotePageCallback& callback); 264 virtual ~OpenRemotePageRequest() {} 265 266 private: 267 // DevToolsAndroidBridge::Listener overrides. 268 virtual void DeviceListChanged( 269 const DevToolsAndroidBridge::RemoteDevices& devices) OVERRIDE; 270 271 bool OpenInBrowser(DevToolsAndroidBridge::RemoteBrowser* browser); 272 void RemotePageOpened(DevToolsAndroidBridge::RemotePage* page); 273 274 std::string url_; 275 DevToolsAndroidBridge::RemotePageCallback callback_; 276 bool opening_; 277 scoped_refptr<DevToolsAndroidBridge> android_bridge_; 278 279 DISALLOW_COPY_AND_ASSIGN(OpenRemotePageRequest); 280 }; 281 282 OpenRemotePageRequest::OpenRemotePageRequest( 283 Profile* profile, 284 const std::string url, 285 const DevToolsAndroidBridge::RemotePageCallback& callback) 286 : url_(url), 287 callback_(callback), 288 opening_(false), 289 android_bridge_( 290 DevToolsAndroidBridge::Factory::GetForProfile(profile)) { 291 android_bridge_->AddDeviceListListener(this); 292 } 293 294 void OpenRemotePageRequest::DeviceListChanged( 295 const DevToolsAndroidBridge::RemoteDevices& devices) { 296 if (opening_) 297 return; 298 299 for (DevToolsAndroidBridge::RemoteDevices::const_iterator dit = 300 devices.begin(); dit != devices.end(); ++dit) { 301 DevToolsAndroidBridge::RemoteDevice* device = dit->get(); 302 if (!device->is_connected()) 303 continue; 304 305 DevToolsAndroidBridge::RemoteBrowsers& browsers = device->browsers(); 306 for (DevToolsAndroidBridge::RemoteBrowsers::iterator bit = 307 browsers.begin(); bit != browsers.end(); ++bit) { 308 if (OpenInBrowser(bit->get())) { 309 opening_ = true; 310 return; 311 } 312 } 313 } 314 } 315 316 bool OpenRemotePageRequest::OpenInBrowser( 317 DevToolsAndroidBridge::RemoteBrowser* browser) { 318 if (!browser->IsChrome()) 319 return false; 320 #if defined(DEBUG_DEVTOOLS) 321 if (browser->serial() == kLocalSerial) 322 return false; 323 #endif // defined(DEBUG_DEVTOOLS) 324 browser->Open(url_, base::Bind(&OpenRemotePageRequest::RemotePageOpened, 325 base::Unretained(this))); 326 return true; 327 } 328 329 void OpenRemotePageRequest::RemotePageOpened( 330 DevToolsAndroidBridge::RemotePage* page) { 331 callback_.Run(page); 332 android_bridge_->RemoveDeviceListListener(this); 333 delete this; 334 } 335 336 } // namespace 337 338 // DevToolsUI ----------------------------------------------------------------- 339 340 // static 341 GURL DevToolsUI::GetProxyURL(const std::string& frontend_url) { 342 GURL url(frontend_url); 343 if (!url.is_valid() || url.host() != kRemoteFrontendDomain) 344 return GURL(kFallbackFrontendURL); 345 return GURL(base::StringPrintf("%s://%s/%s/%s", 346 content::kChromeDevToolsScheme, 347 chrome::kChromeUIDevToolsHost, 348 chrome::kChromeUIDevToolsRemotePath, 349 url.path().substr(1).c_str())); 350 } 351 352 DevToolsUI::DevToolsUI(content::WebUI* web_ui) 353 : WebUIController(web_ui), 354 content::WebContentsObserver(web_ui->GetWebContents()), 355 bindings_(web_ui->GetWebContents()), 356 weak_factory_(this) { 357 web_ui->SetBindings(0); 358 Profile* profile = Profile::FromWebUI(web_ui); 359 content::URLDataSource::Add( 360 profile, 361 new DevToolsDataSource(profile->GetRequestContext())); 362 } 363 364 DevToolsUI::~DevToolsUI() { 365 } 366 367 void DevToolsUI::NavigationEntryCommitted( 368 const content::LoadCommittedDetails& load_details) { 369 content::NavigationEntry* entry = load_details.entry; 370 if (!CommandLine::ForCurrentProcess()->HasSwitch( 371 switches::kEnableDevToolsExperiments)) { 372 return; 373 } 374 375 if (entry->GetVirtualURL() == remote_frontend_loading_url_) { 376 remote_frontend_loading_url_ = GURL(); 377 return; 378 } 379 380 std::string path = entry->GetVirtualURL().path().substr(1); 381 if (!StartsWithASCII(path, kRemoteOpenPrefix, false)) 382 return; 383 384 bindings_.Detach(); 385 remote_page_opening_url_ = entry->GetVirtualURL(); 386 new OpenRemotePageRequest(Profile::FromWebUI(web_ui()), 387 entry->GetVirtualURL().query(), 388 base::Bind(&DevToolsUI::RemotePageOpened, 389 weak_factory_.GetWeakPtr(), 390 entry->GetVirtualURL())); 391 } 392 393 void DevToolsUI::RemotePageOpened( 394 const GURL& virtual_url, DevToolsAndroidBridge::RemotePage* page) { 395 // Already navigated away while connecting to remote device. 396 if (remote_page_opening_url_ != virtual_url) 397 return; 398 399 scoped_ptr<DevToolsAndroidBridge::RemotePage> my_page(page); 400 remote_page_opening_url_ = GURL(); 401 402 Profile* profile = Profile::FromWebUI(web_ui()); 403 GURL url = DevToolsUIBindings::ApplyThemeToURL(profile, 404 DevToolsUI::GetProxyURL(page->GetFrontendURL())); 405 406 content::NavigationController& navigation_controller = 407 web_ui()->GetWebContents()->GetController(); 408 content::NavigationController::LoadURLParams params(url); 409 params.should_replace_current_entry = true; 410 remote_frontend_loading_url_ = virtual_url; 411 navigation_controller.LoadURLWithParams(params); 412 navigation_controller.GetPendingEntry()->SetVirtualURL(virtual_url); 413 414 bindings_.AttachTo(page->GetTarget()->GetAgentHost()); 415 } 416
