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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/browser_about_handler.h"
#include <string>
#include "base/logging.h"
#include "base/memory/singleton.h"
#include "base/string_util.h"
#include "chrome/browser/net/url_fixer_upper.h"
#include "chrome/browser/ui/browser_dialogs.h"
#include "chrome/common/about_handler.h"
#include "chrome/common/url_constants.h"
#include "content/browser/gpu/gpu_process_host_ui_shim.h"
#include "content/browser/sensors/sensors_provider.h"
#if defined(USE_TCMALLOC)
#include "third_party/tcmalloc/chromium/src/google/malloc_extension.h"
#endif
namespace {
// Add paths here to be included in chrome://chrome-urls (about:about).
// These paths will also be suggested by BuiltinProvider.
const char* const kChromePaths[] = {
chrome::kChromeUIAppCacheInternalsHost,
chrome::kChromeUIBlobInternalsHost,
chrome::kChromeUIBookmarksHost,
chrome::kChromeUICacheHost,
chrome::kChromeUIChromeURLsHost,
chrome::kChromeUICrashesHost,
chrome::kChromeUICreditsHost,
chrome::kChromeUIDNSHost,
chrome::kChromeUIDownloadsHost,
chrome::kChromeUIExtensionsHost,
chrome::kChromeUIFlagsHost,
chrome::kChromeUIFlashHost,
chrome::kChromeUIGpuInternalsHost,
chrome::kChromeUIHistogramsHost,
chrome::kChromeUIHistoryHost,
chrome::kChromeUIIPCHost,
chrome::kChromeUIMediaInternalsHost,
chrome::kChromeUIMemoryHost,
chrome::kChromeUINetInternalsHost,
chrome::kChromeUINetworkViewCacheHost,
chrome::kChromeUINewTabHost,
chrome::kChromeUIPluginsHost,
chrome::kChromeUIPrintHost,
chrome::kChromeUIProfilerHost,
chrome::kChromeUIQuotaInternalsHost,
chrome::kChromeUISessionsHost,
chrome::kChromeUISettingsHost,
chrome::kChromeUIStatsHost,
chrome::kChromeUISyncInternalsHost,
chrome::kChromeUITaskManagerHost,
chrome::kChromeUITCMallocHost,
chrome::kChromeUITermsHost,
chrome::kChromeUITracingHost,
chrome::kChromeUIVersionHost,
chrome::kChromeUIWorkersHost,
#if defined(OS_WIN)
chrome::kChromeUIConflictsHost,
#endif
#if defined(OS_LINUX) || defined(OS_OPENBSD)
chrome::kChromeUILinuxProxyConfigHost,
chrome::kChromeUISandboxHost,
#endif
#if defined(OS_CHROMEOS)
chrome::kChromeUIActiveDownloadsHost,
chrome::kChromeUIChooseMobileNetworkHost,
chrome::kChromeUICryptohomeHost,
chrome::kChromeUIDiscardsHost,
chrome::kChromeUIImageBurnerHost,
chrome::kChromeUIKeyboardOverlayHost,
chrome::kChromeUILoginHost,
chrome::kChromeUINetworkHost,
chrome::kChromeUIOobeHost,
chrome::kChromeUIOSCreditsHost,
chrome::kChromeUIProxySettingsHost,
chrome::kChromeUISystemInfoHost,
#endif
};
} // namespace
bool WillHandleBrowserAboutURL(GURL* url,
content::BrowserContext* browser_context) {
// TODO(msw): Eliminate "about:*" constants and literals from code and tests,
// then hopefully we can remove this forced fixup.
*url = URLFixerUpper::FixupURL(url->possibly_invalid_spec(), std::string());
// Check that about: URLs are fixed up to chrome: by URLFixerUpper::FixupURL.
DCHECK((*url == GURL(chrome::kAboutBlankURL)) ||
!url->SchemeIs(chrome::kAboutScheme));
// Only handle chrome://foo/, URLFixerUpper::FixupURL translates about:foo.
// TAB_CONTENTS_WEB handles about:blank, which frames are allowed to access.
if (!url->SchemeIs(chrome::kChromeUIScheme))
return false;
// Circumvent processing URLs that the renderer process will handle.
if (chrome_about_handler::WillHandle(*url))
return false;
std::string host(url->host());
std::string path;
// Replace about with chrome-urls.
if (host == chrome::kChromeUIAboutHost)
host = chrome::kChromeUIChromeURLsHost;
// Replace cache with view-http-cache.
if (host == chrome::kChromeUICacheHost) {
host = chrome::kChromeUINetworkViewCacheHost;
// Replace gpu with gpu-internals.
} else if (host == chrome::kChromeUIGpuHost) {
host = chrome::kChromeUIGpuInternalsHost;
// Replace sync with sync-internals (for legacy reasons).
} else if (host == chrome::kChromeUISyncHost) {
host = chrome::kChromeUISyncInternalsHost;
// Redirect chrome://extensions to chrome://settings/extensions.
} else if (host == chrome::kChromeUIExtensionsHost) {
host = chrome::kChromeUISettingsHost;
path = chrome::kExtensionsSubPage;
}
GURL::Replacements replacements;
replacements.SetHostStr(host);
if (!path.empty())
replacements.SetPathStr(path);
*url = url->ReplaceComponents(replacements);
// Having re-written the URL, make the chrome: handler process it.
return false;
}
bool HandleNonNavigationAboutURL(const GURL& url) {
std::string host(url.host());
// chrome://ipc/ is currently buggy, so we disable it for official builds.
#if !defined(OFFICIAL_BUILD)
#if (defined(OS_MACOSX) || defined(OS_WIN)) && defined(IPC_MESSAGE_LOG_ENABLED)
if (LowerCaseEqualsASCII(url.spec(), chrome::kChromeUIIPCURL)) {
// Run the dialog. This will re-use the existing one if it's already up.
browser::ShowAboutIPCDialog();
return true;
}
#endif
#endif // OFFICIAL_BUILD
// Handle URLs to crash the browser or wreck the gpu process.
if (host == chrome::kChromeUIBrowserCrashHost) {
// Induce an intentional crash in the browser process.
CHECK(false);
}
if (host == chrome::kChromeUIGpuCleanHost) {
GpuProcessHostUIShim* shim = GpuProcessHostUIShim::GetOneInstance();
if (shim)
shim->SimulateRemoveAllContext();
return true;
}
if (host == chrome::kChromeUIGpuCrashHost) {
GpuProcessHostUIShim* shim = GpuProcessHostUIShim::GetOneInstance();
if (shim)
shim->SimulateCrash();
return true;
}
if (host == chrome::kChromeUIGpuHangHost) {
GpuProcessHostUIShim* shim = GpuProcessHostUIShim::GetOneInstance();
if (shim)
shim->SimulateHang();
return true;
}
#if defined(OS_CHROMEOS)
if (host == chrome::kChromeUIRotateHost) {
content::ScreenOrientation change = content::SCREEN_ORIENTATION_TOP;
std::string query(url.query());
if (query == "left") {
change = content::SCREEN_ORIENTATION_LEFT;
} else if (query == "right") {
change = content::SCREEN_ORIENTATION_RIGHT;
} else if (query == "top") {
change = content::SCREEN_ORIENTATION_TOP;
} else if (query == "bottom") {
change = content::SCREEN_ORIENTATION_BOTTOM;
} else {
NOTREACHED() << "Unknown orientation";
}
sensors::Provider::GetInstance()->ScreenOrientationChanged(change);
return true;
}
#endif
return false;
}
std::vector<std::string> ChromePaths() {
std::vector<std::string> paths;
paths.reserve(arraysize(kChromePaths));
for (size_t i = 0; i < arraysize(kChromePaths); i++)
paths.push_back(kChromePaths[i]);
return paths;
}
#if defined(USE_TCMALLOC)
// static
AboutTcmallocOutputs* AboutTcmallocOutputs::GetInstance() {
return Singleton<AboutTcmallocOutputs>::get();
}
AboutTcmallocOutputs::AboutTcmallocOutputs() {}
AboutTcmallocOutputs::~AboutTcmallocOutputs() {}
// Glue between the callback task and the method in the singleton.
void AboutTcmallocRendererCallback(base::ProcessId pid,
const std::string& output) {
AboutTcmallocOutputs::GetInstance()->RendererCallback(pid, output);
}
#endif
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