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/browser_about_handler.h" 6 7 #include <algorithm> 8 #include <string> 9 10 #include "base/command_line.h" 11 #include "base/logging.h" 12 #include "base/memory/singleton.h" 13 #include "base/strings/string_util.h" 14 #include "chrome/browser/lifetime/application_lifetime.h" 15 #include "chrome/browser/ui/browser_dialogs.h" 16 #include "chrome/common/chrome_switches.h" 17 #include "chrome/common/net/url_fixer_upper.h" 18 #include "chrome/common/url_constants.h" 19 20 bool WillHandleBrowserAboutURL(GURL* url, 21 content::BrowserContext* browser_context) { 22 // TODO(msw): Eliminate "about:*" constants and literals from code and tests, 23 // then hopefully we can remove this forced fixup. 24 *url = URLFixerUpper::FixupURL(url->possibly_invalid_spec(), std::string()); 25 26 // Check that about: URLs are fixed up to chrome: by URLFixerUpper::FixupURL. 27 DCHECK((*url == GURL(content::kAboutBlankURL)) || 28 !url->SchemeIs(chrome::kAboutScheme)); 29 30 // Only handle chrome://foo/, URLFixerUpper::FixupURL translates about:foo. 31 if (!url->SchemeIs(chrome::kChromeUIScheme)) 32 return false; 33 34 std::string host(url->host()); 35 std::string path; 36 // Replace about with chrome-urls. 37 if (host == chrome::kChromeUIAboutHost) 38 host = chrome::kChromeUIChromeURLsHost; 39 // Replace cache with view-http-cache. 40 if (host == chrome::kChromeUICacheHost) { 41 host = content::kChromeUINetworkViewCacheHost; 42 // Replace sync with sync-internals (for legacy reasons). 43 } else if (host == chrome::kChromeUISyncHost) { 44 host = chrome::kChromeUISyncInternalsHost; 45 // Redirect chrome://extensions. 46 } else if (host == chrome::kChromeUIExtensionsHost) { 47 host = chrome::kChromeUIUberHost; 48 path = chrome::kChromeUIExtensionsHost + url->path(); 49 // Redirect chrome://settings/extensions (legacy URL). 50 } else if (host == chrome::kChromeUISettingsHost && 51 url->path() == std::string("/") + chrome::kExtensionsSubPage) { 52 host = chrome::kChromeUIUberHost; 53 path = chrome::kChromeUIExtensionsHost; 54 // Redirect chrome://history. 55 } else if (host == chrome::kChromeUIHistoryHost) { 56 #if defined(OS_ANDROID) 57 // On Android, redirect directly to chrome://history-frame since 58 // uber page is unsupported. 59 host = chrome::kChromeUIHistoryFrameHost; 60 #else 61 host = chrome::kChromeUIUberHost; 62 path = chrome::kChromeUIHistoryHost + url->path(); 63 #endif 64 // Redirect chrome://settings 65 } else if (host == chrome::kChromeUISettingsHost) { 66 host = chrome::kChromeUIUberHost; 67 path = chrome::kChromeUISettingsHost + url->path(); 68 // Redirect chrome://help 69 } else if (host == chrome::kChromeUIHelpHost) { 70 host = chrome::kChromeUIUberHost; 71 path = chrome::kChromeUIHelpHost + url->path(); 72 } else if (host == chrome::kChromeUIRestartHost) { 73 // Call AttemptRestart after chrome::Navigate() completes to avoid access of 74 // gtk objects after they are destoyed by BrowserWindowGtk::Close(). 75 base::MessageLoop::current()->PostTask(FROM_HERE, 76 base::Bind(&chrome::AttemptRestart)); 77 } 78 GURL::Replacements replacements; 79 replacements.SetHostStr(host); 80 if (!path.empty()) 81 replacements.SetPathStr(path); 82 *url = url->ReplaceComponents(replacements); 83 84 // Having re-written the URL, make the chrome: handler process it. 85 return false; 86 } 87 88 bool HandleNonNavigationAboutURL(const GURL& url) { 89 // chrome://ipc/ is currently buggy, so we disable it for official builds. 90 #if !defined(OFFICIAL_BUILD) 91 92 #if (defined(OS_MACOSX) || defined(OS_WIN)) && defined(IPC_MESSAGE_LOG_ENABLED) 93 if (LowerCaseEqualsASCII(url.spec(), chrome::kChromeUIIPCURL)) { 94 // Run the dialog. This will re-use the existing one if it's already up. 95 chrome::ShowAboutIPCDialog(); 96 return true; 97 } 98 #endif 99 100 #endif // OFFICIAL_BUILD 101 102 return false; 103 } 104 105
