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chromium / chromium / src / d884200ce8c072f5602b634f24c69e02ae1b3479 / . / chrome / browser / browser_about_handler.cc
blob: 69974ad384e646f6e6f7519a2fffb1230d3f306b [file] [log] [blame]
// 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 <algorithm>
#include <string>
#include <vector>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/command_line.h"
#include "base/file_util.h"
#include "base/i18n/number_formatting.h"
#include "base/json/json_writer.h"
#include "base/memory/singleton.h"
#include "base/metrics/histogram.h"
#include "base/metrics/stats_table.h"
#include "base/path_service.h"
#include "base/string_number_conversions.h"
#include "base/string_piece.h"
#include "base/string_util.h"
#include "base/stringprintf.h"
#include "base/threading/thread.h"
#include "base/tracked_objects.h"
#include "base/utf_string_conversions.h"
#include "base/values.h"
#include "chrome/browser/about_flags.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/defaults.h"
#include "chrome/browser/memory_details.h"
#include "chrome/browser/metrics/histogram_synchronizer.h"
#include "chrome/browser/net/predictor.h"
#include "chrome/browser/net/url_fixer_upper.h"
#include "chrome/browser/plugin_prefs.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/ui/browser_dialogs.h"
#include "chrome/browser/ui/webui/chrome_url_data_manager.h"
#include "chrome/common/about_handler.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_version_info.h"
#include "chrome/common/jstemplate_builder.h"
#include "chrome/common/net/gaia/google_service_auth_error.h"
#include "chrome/common/render_messages.h"
#include "chrome/common/url_constants.h"
#include "content/browser/browser_thread.h"
#include "content/browser/gpu/gpu_process_host.h"
#include "content/browser/renderer_host/render_process_host.h"
#include "content/browser/renderer_host/render_view_host.h"
#include "content/browser/sensors/sensors_provider.h"
#include "content/common/gpu/gpu_messages.h"
#include "crypto/nss_util.h"
#include "googleurl/src/gurl.h"
#include "grit/browser_resources.h"
#include "grit/chromium_strings.h"
#include "grit/generated_resources.h"
#include "grit/locale_settings.h"
#include "net/base/escape.h"
#include "net/base/net_util.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "v8/include/v8.h"
#include "webkit/glue/user_agent.h"
#include "webkit/glue/webkit_glue.h"
#include "webkit/plugins/npapi/plugin_list.h"
#include "webkit/plugins/webplugininfo.h"
#if defined(OS_WIN)
#include "chrome/browser/enumerate_modules_model_win.h"
#elif defined(OS_CHROMEOS)
#include "chrome/browser/chromeos/cros/cros_library.h"
#include "chrome/browser/chromeos/cros/cryptohome_library.h"
#include "chrome/browser/chromeos/cros/network_library.h"
#include "chrome/browser/chromeos/customization_document.h"
#include "chrome/browser/chromeos/login/wizard_controller.h"
#include "chrome/browser/chromeos/version_loader.h"
#include "chrome/browser/oom_priority_manager.h"
#include "content/browser/zygote_host_linux.h"
#elif defined(OS_LINUX)
#include "content/browser/zygote_host_linux.h"
#endif
#if defined(USE_TCMALLOC)
#include "third_party/tcmalloc/chromium/src/google/malloc_extension.h"
#endif
using base::Time;
using base::TimeDelta;
#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
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::kChromeUIQuotaInternalsHost,
chrome::kChromeUISessionsHost,
chrome::kChromeUISettingsHost,
chrome::kChromeUIStatsHost,
chrome::kChromeUISyncInternalsHost,
chrome::kChromeUITaskManagerHost,
chrome::kChromeUITCMallocHost,
chrome::kChromeUITermsHost,
chrome::kChromeUITracingHost,
chrome::kChromeUIVersionHost,
chrome::kChromeUIWorkersHost,
#if defined(TRACK_ALL_TASK_OBJECTS)
chrome::kChromeUITrackingHost,
#endif
#if defined(OS_WIN)
chrome::kChromeUIConflictsHost,
#endif
#if defined(OS_LINUX)
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
};
// AboutSource handles these chrome:// paths.
const char* const kAboutSourceNames[] = {
chrome::kChromeUIChromeURLsHost,
chrome::kChromeUICreditsHost,
chrome::kChromeUIDNSHost,
chrome::kChromeUIHistogramsHost,
chrome::kChromeUIMemoryHost,
chrome::kChromeUIMemoryRedirectHost,
chrome::kChromeUIStatsHost,
chrome::kChromeUITaskManagerHost,
chrome::kChromeUITermsHost,
chrome::kChromeUIVersionHost,
#if defined(TRACK_ALL_TASK_OBJECTS)
chrome::kChromeUITrackingHost,
#endif
#if defined(USE_TCMALLOC)
chrome::kChromeUITCMallocHost,
#endif
#if defined(OS_LINUX)
chrome::kChromeUILinuxProxyConfigHost,
chrome::kChromeUISandboxHost,
#endif
#if defined(OS_CHROMEOS)
chrome::kChromeUICryptohomeHost,
chrome::kChromeUIDiscardsHost,
chrome::kChromeUINetworkHost,
chrome::kChromeUIOSCreditsHost,
#endif
};
const char kCreditsJsPath[] = "credits.js";
const char kMemoryJsPath[] = "memory.js";
const char kStatsJsPath[] = "stats.js";
const char kStringsJsPath[] = "strings.js";
const char kVersionJsPath[] = "version.js";
class AboutSource : public ChromeURLDataManager::DataSource {
public:
// Construct a data source for the specified |source_name|.
AboutSource(const std::string& source_name, Profile* profile);
// Called when the network layer has requested a resource underneath
// the path we registered.
virtual void StartDataRequest(const std::string& path,
bool is_incognito,
int request_id) OVERRIDE;
virtual std::string GetMimeType(const std::string& path) const OVERRIDE;
// Send the response data.
void FinishDataRequest(const std::string& html, int request_id);
Profile* profile() { return profile_; }
private:
virtual ~AboutSource();
Profile* profile_;
DISALLOW_COPY_AND_ASSIGN(AboutSource);
};
// When you type about:memory, it actually loads this intermediate URL that
// redirects you to the final page. This avoids the problem where typing
// "about:memory" on the new tab page or any other page where a process
// transition would occur to the about URL will cause some confusion.
//
// The problem is that during the processing of the memory page, there are two
// processes active, the original and the destination one. This can create the
// impression that we're using more resources than we actually are. This
// redirect solves the problem by eliminating the process transition during the
// time that about memory is being computed.
std::string GetAboutMemoryRedirectResponse(Profile* profile) {
InitializeAboutDataSource(chrome::kChromeUIMemoryRedirectHost, profile);
return StringPrintf("<meta http-equiv=\"refresh\" content=\"0;%s\">",
chrome::kChromeUIMemoryRedirectURL);
}
// Handling about:memory is complicated enough to encapsulate its related
// methods into a single class. The user should create it (on the heap) and call
// its |StartFetch()| method.
class AboutMemoryHandler : public MemoryDetails {
public:
AboutMemoryHandler(AboutSource* source, int request_id)
: source_(source),
request_id_(request_id) {
}
virtual void OnDetailsAvailable() OVERRIDE;
private:
~AboutMemoryHandler() {}
void BindProcessMetrics(DictionaryValue* data,
ProcessMemoryInformation* info);
void AppendProcess(ListValue* child_data, ProcessMemoryInformation* info);
scoped_refptr<AboutSource> source_;
int request_id_;
DISALLOW_COPY_AND_ASSIGN(AboutMemoryHandler);
};
#if defined(OS_CHROMEOS)
// ChromeOSAboutVersionHandler is responsible for loading the Chrome OS
// version.
// ChromeOSAboutVersionHandler handles deleting itself once the version has
// been obtained and AboutSource notified.
class ChromeOSAboutVersionHandler {
public:
ChromeOSAboutVersionHandler(AboutSource* source, int request_id);
// Callback from chromeos::VersionLoader giving the version.
void OnVersion(chromeos::VersionLoader::Handle handle,
std::string version);
private:
// Where the results are fed to.
scoped_refptr<AboutSource> source_;
// ID identifying the request.
int request_id_;
// Handles asynchronously loading the version.
chromeos::VersionLoader loader_;
// Used to request the version.
CancelableRequestConsumer consumer_;
DISALLOW_COPY_AND_ASSIGN(ChromeOSAboutVersionHandler);
};
class ChromeOSTermsHandler
: public base::RefCountedThreadSafe<ChromeOSTermsHandler> {
public:
static void Start(AboutSource* source,
const std::string& path,
int request_id) {
scoped_refptr<ChromeOSTermsHandler> handler(
new ChromeOSTermsHandler(source, path, request_id));
handler->StartOnUIThread();
}
private:
ChromeOSTermsHandler(AboutSource* source,
const std::string& path,
int request_id)
: source_(source),
path_(path),
request_id_(request_id),
locale_(chromeos::WizardController::GetInitialLocale()) {
}
void StartOnUIThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
BrowserThread::PostTask(
BrowserThread::FILE, FROM_HERE,
NewRunnableMethod(this, &ChromeOSTermsHandler::LoadFileOnFileThread));
}
void LoadFileOnFileThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
if (path_ == chrome::kOemEulaURLPath) {
const chromeos::StartupCustomizationDocument* customization =
chromeos::StartupCustomizationDocument::GetInstance();
if (customization->IsReady()) {
FilePath oem_eula_file_path;
if (net::FileURLToFilePath(GURL(customization->GetEULAPage(locale_)),
&oem_eula_file_path)) {
if (!file_util::ReadFileToString(oem_eula_file_path, &contents_)) {
contents_.clear();
}
}
}
} else {
std::string file_path =
StringPrintf(chrome::kEULAPathFormat, locale_.c_str());
if (!file_util::ReadFileToString(FilePath(file_path), &contents_)) {
// No EULA for given language - try en-US as default.
file_path = StringPrintf(chrome::kEULAPathFormat, "en-US");
if (!file_util::ReadFileToString(FilePath(file_path), &contents_)) {
// File with EULA not found, ResponseOnUIThread will load EULA from
// resources if contents_ is empty.
contents_.clear();
}
}
}
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
NewRunnableMethod(this, &ChromeOSTermsHandler::ResponseOnUIThread));
}
void ResponseOnUIThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// If we fail to load Chrome OS EULA from disk, load it from resources.
// Do nothing if OEM EULA load failed.
if (contents_.empty() && path_ != chrome::kOemEulaURLPath) {
contents_ = ResourceBundle::GetSharedInstance().GetRawDataResource(
IDR_TERMS_HTML).as_string();
}
source_->FinishDataRequest(contents_, request_id_);
}
// Where the results are fed to.
scoped_refptr<AboutSource> source_;
// Path in the URL.
std::string path_;
// ID identifying the request.
int request_id_;
// Locale of the EULA.
std::string locale_;
// EULA contents that was loaded from file.
std::string contents_;
DISALLOW_COPY_AND_ASSIGN(ChromeOSTermsHandler);
};
#endif
// Individual about handlers ---------------------------------------------------
void AppendHeader(std::string* output, int refresh,
const std::string& unescaped_title) {
output->append("<!DOCTYPE HTML>\n<html>\n<head>\n");
if (!unescaped_title.empty()) {
output->append("<title>");
output->append(EscapeForHTML(unescaped_title));
output->append("</title>\n");
}
output->append("<meta charset=\"utf-8\">\n");
if (refresh > 0) {
output->append("<meta http-equiv=\"refresh\" content=\"");
output->append(base::IntToString(refresh));
output->append("\"/>\n");
}
}
void AppendBody(std::string *output) {
output->append("</head>\n<body>\n");
}
void AppendFooter(std::string *output) {
output->append("</body>\n</html>\n");
}
std::string ChromeURLs() {
std::string html;
AppendHeader(&html, 0, "Chrome URLs");
AppendBody(&html);
html += "<h2>List of Chrome URLs</h2>\n<ul>\n";
std::vector<std::string> paths(ChromePaths());
for (std::vector<std::string>::const_iterator i = paths.begin();
i != paths.end(); ++i)
html += "<li><a href='chrome://" + *i + "/'>chrome://" + *i + "</a></li>\n";
html += "</ul>\n<h2>For Debug</h2>\n"
"<p>The following pages are for debugging purposes only. Because they "
"crash or hang the renderer, they're not linked directly; you can type "
"them into the address bar if you need them.</p>\n<ul>";
for (int i = 0; i < chrome::kNumberOfChromeDebugURLs; i++)
html += "<li>" + std::string(chrome::kChromeDebugURLs[i]) + "</li>\n";
html += "</ul>\n";
AppendFooter(&html);
return html;
}
#if defined(OS_CHROMEOS)
// Html output helper functions
// TODO(stevenjb): L10N this.
// Helper function to wrap HTML with a tag.
std::string WrapWithTag(const std::string& tag, const std::string& text) {
return "<" + tag + ">" + text + "</" + tag + ">";
}
// Helper function to wrap Html with <th> tag.
std::string WrapWithTH(const std::string& text) {
return "<th>" + text + "</th>";
}
// Helper function to wrap Html with <td> tag.
std::string WrapWithTD(const std::string& text) {
return "<td>" + text + "</td>";
}
// Helper function to wrap Html with <tr> tag.
std::string WrapWithTR(const std::string& text) {
return "<tr>" + text + "</tr>";
}
void AppendRefresh(std::string *output, int refresh, const std::string& name) {
if (refresh > 0) {
output->append("(Auto-refreshing page every ");
output->append(base::IntToString(refresh));
output->append("s)");
} else {
output->append("(To auto-refresh this page: about:");
output->append(name);
output->append("/&lt;secs&gt;)");
}
}
// Helper function to create an Html table header for a Network.
std::string ToHtmlTableHeader(const chromeos::Network* network) {
std::string str =
WrapWithTH("Name") +
WrapWithTH("Active") +
WrapWithTH("State");
if (network->type() == chromeos::TYPE_WIFI ||
network->type() == chromeos::TYPE_CELLULAR) {
str += WrapWithTH("Auto-Connect");
str += WrapWithTH("Strength");
}
if (network->type() == chromeos::TYPE_WIFI) {
str += WrapWithTH("Encryption");
str += WrapWithTH("Passphrase");
str += WrapWithTH("Identity");
}
if (network->type() == chromeos::TYPE_CELLULAR) {
str += WrapWithTH("Technology");
str += WrapWithTH("Connectivity");
str += WrapWithTH("Activation");
str += WrapWithTH("Roaming");
}
if (network->type() == chromeos::TYPE_VPN) {
str += WrapWithTH("Host");
str += WrapWithTH("Provider Type");
str += WrapWithTH("PSK Passphrase");
str += WrapWithTH("Username");
str += WrapWithTH("User Passphrase");
}
str += WrapWithTH("Error");
str += WrapWithTH("IP Address");
return WrapWithTR(str);
}
// Helper function to create an Html table row for a Network.
std::string ToHtmlTableRow(const chromeos::Network* network) {
std::string str =
WrapWithTD(network->name()) +
WrapWithTD(base::IntToString(network->is_active())) +
WrapWithTD(network->GetStateString());
if (network->type() == chromeos::TYPE_WIFI ||
network->type() == chromeos::TYPE_CELLULAR) {
const chromeos::WirelessNetwork* wireless =
static_cast<const chromeos::WirelessNetwork*>(network);
str += WrapWithTD(base::IntToString(wireless->auto_connect()));
str += WrapWithTD(base::IntToString(wireless->strength()));
}
if (network->type() == chromeos::TYPE_WIFI) {
const chromeos::WifiNetwork* wifi =
static_cast<const chromeos::WifiNetwork*>(network);
str += WrapWithTD(wifi->GetEncryptionString());
str += WrapWithTD(std::string(wifi->passphrase().length(), '*'));
str += WrapWithTD(wifi->identity());
}
if (network->type() == chromeos::TYPE_CELLULAR) {
const chromeos::CellularNetwork* cell =
static_cast<const chromeos::CellularNetwork*>(network);
str += WrapWithTH(cell->GetNetworkTechnologyString());
str += WrapWithTH(cell->GetActivationStateString());
str += WrapWithTH(cell->GetRoamingStateString());
}
if (network->type() == chromeos::TYPE_VPN) {
const chromeos::VirtualNetwork* vpn =
static_cast<const chromeos::VirtualNetwork*>(network);
str += WrapWithTH(vpn->server_hostname());
str += WrapWithTH(vpn->GetProviderTypeString());
str += WrapWithTD(std::string(vpn->psk_passphrase().length(), '*'));
str += WrapWithTH(vpn->username());
str += WrapWithTD(std::string(vpn->user_passphrase().length(), '*'));
}
str += WrapWithTD(network->failed() ? network->GetErrorString() : "");
str += WrapWithTD(network->ip_address());
return WrapWithTR(str);
}
std::string GetNetworkHtmlInfo(int refresh) {
chromeos::NetworkLibrary* cros =
chromeos::CrosLibrary::Get()->GetNetworkLibrary();
std::string output;
AppendHeader(&output, refresh, "About Network");
AppendBody(&output);
AppendRefresh(&output, refresh, "network");
if (cros->ethernet_enabled()) {
output.append("<h3>Ethernet:</h3><table border=1>");
const chromeos::EthernetNetwork* ethernet = cros->ethernet_network();
if (ethernet) {
output.append(ToHtmlTableHeader(ethernet));
output.append(ToHtmlTableRow(ethernet));
}
}
if (cros->wifi_enabled()) {
output.append("</table><h3>Wifi Networks:</h3><table border=1>");
const chromeos::WifiNetworkVector& wifi_networks = cros->wifi_networks();
for (size_t i = 0; i < wifi_networks.size(); ++i) {
if (i == 0)
output.append(ToHtmlTableHeader(wifi_networks[i]));
output.append(ToHtmlTableRow(wifi_networks[i]));
}
}
if (cros->cellular_enabled()) {
output.append("</table><h3>Cellular Networks:</h3><table border=1>");
const chromeos::CellularNetworkVector& cellular_networks =
cros->cellular_networks();
for (size_t i = 0; i < cellular_networks.size(); ++i) {
if (i == 0)
output.append(ToHtmlTableHeader(cellular_networks[i]));
output.append(ToHtmlTableRow(cellular_networks[i]));
}
}
{
output.append("</table><h3>Virtual Networks:</h3><table border=1>");
const chromeos::VirtualNetworkVector& virtual_networks =
cros->virtual_networks();
for (size_t i = 0; i < virtual_networks.size(); ++i) {
if (i == 0)
output.append(ToHtmlTableHeader(virtual_networks[i]));
output.append(ToHtmlTableRow(virtual_networks[i]));
}
}
{
output.append(
"</table><h3>Remembered Wi-Fi Networks:</h3><table border=1>");
const chromeos::WifiNetworkVector& remembered_wifi_networks =
cros->remembered_wifi_networks();
for (size_t i = 0; i < remembered_wifi_networks.size(); ++i) {
if (i == 0)
output.append(
ToHtmlTableHeader(remembered_wifi_networks[i]));
output.append(ToHtmlTableRow(remembered_wifi_networks[i]));
}
}
output.append("</table>");
AppendFooter(&output);
return output;
}
std::string AboutNetwork(const std::string& query) {
int refresh;
base::StringToInt(query, &refresh);
return GetNetworkHtmlInfo(refresh);
}
std::string AddBoolRow(const std::string& name, bool value) {
std::string row;
row.append(WrapWithTD(name));
row.append(WrapWithTD(value ? "true" : "false"));
return WrapWithTR(row);
}
std::string AddStringRow(const std::string& name, const std::string& value) {
std::string row;
row.append(WrapWithTD(name));
row.append(WrapWithTD(value));
return WrapWithTR(row);
}
std::string GetCryptohomeHtmlInfo(int refresh) {
chromeos::CryptohomeLibrary* cryptohome =
chromeos::CrosLibrary::Get()->GetCryptohomeLibrary();
std::string output;
AppendHeader(&output, refresh, "About Cryptohome");
AppendBody(&output);
AppendRefresh(&output, refresh, "cryptohome");
output.append("<h3>CryptohomeLibrary:</h3>");
output.append("<table>");
output.append(AddBoolRow("IsMounted", cryptohome->IsMounted()));
output.append(AddBoolRow("TpmIsReady", cryptohome->TpmIsReady()));
output.append(AddBoolRow("TpmIsEnabled", cryptohome->TpmIsEnabled()));
output.append(AddBoolRow("TpmIsOwned", cryptohome->TpmIsOwned()));
output.append(AddBoolRow("TpmIsBeingOwned", cryptohome->TpmIsBeingOwned()));
output.append(AddBoolRow("Pkcs11IsTpmTokenReady",
cryptohome->Pkcs11IsTpmTokenReady()));
output.append("</table>");
std::string token_name, user_pin;
crypto::GetTPMTokenInfo(&token_name, &user_pin);
output.append("<h3>crypto:</h3>");
output.append("<table>");
output.append(AddBoolRow("IsTPMTokenReady", crypto::IsTPMTokenReady()));
output.append(AddStringRow("token_name", token_name));
output.append(AddStringRow("user_pin", std::string(user_pin.length(), '*')));
output.append("</table>");
AppendFooter(&output);
return output;
}
std::string AboutCryptohome(const std::string& query) {
int refresh;
base::StringToInt(query, &refresh);
return GetCryptohomeHtmlInfo(refresh);
}
std::string AboutDiscardsRun() {
std::string output;
AppendHeader(&output, 0, "About discards");
output.append(StringPrintf("<meta http-equiv=\"refresh\" content=\"2;%s\">",
chrome::kChromeUIDiscardsURL));
output.append(WrapWithTag("p", "Discarding a tab..."));
g_browser_process->oom_priority_manager()->DiscardTab();
AppendFooter(&output);
return output;
}
std::string AboutDiscards(const std::string& path) {
std::string output;
const char kRunCommand[] = "run";
if (path == kRunCommand)
return AboutDiscardsRun();
AppendHeader(&output, 0, "About discards");
AppendBody(&output);
output.append("<h3>About discards</h3>");
output.append(
"<p>Tabs sorted from most interesting to least interesting. The least "
"interesting tab may be discarded if we run out of physical memory.</p>");
std::vector<string16> titles =
g_browser_process->oom_priority_manager()->GetTabTitles();
if (!titles.empty()) {
output.append("<ol>");
std::vector<string16>::iterator it = titles.begin();
for ( ; it != titles.end(); ++it) {
std::string title = UTF16ToUTF8(*it);
output.append(WrapWithTag("li", title));
}
output.append("</ol>");
} else {
output.append("<p>None found. Wait 10 seconds, then refresh.</p>");
}
output.append(StringPrintf("<a href='%s%s'>Discard tab now</a>",
chrome::kChromeUIDiscardsURL,
kRunCommand));
base::SystemMemoryInfoKB meminfo;
base::GetSystemMemoryInfo(&meminfo);
output.append("<h3>System memory information in MB</h3>");
output.append("<table>");
output.append(AddStringRow(
"Total", base::IntToString(meminfo.total / 1024)));
output.append(AddStringRow(
"Free", base::IntToString(meminfo.free / 1024)));
output.append(AddStringRow(
"Buffered", base::IntToString(meminfo.buffers / 1024)));
output.append(AddStringRow(
"Cached", base::IntToString(meminfo.cached / 1024)));
output.append(AddStringRow(
"Committed", base::IntToString(
(meminfo.total - meminfo.free - meminfo.buffers - meminfo.cached) / 1024)));
output.append(AddStringRow(
"Active Anon", base::IntToString(meminfo.active_anon / 1024)));
output.append(AddStringRow(
"Inactive Anon", base::IntToString(meminfo.inactive_anon / 1024)));
output.append(AddStringRow(
"Shared", base::IntToString(meminfo.shmem / 1024)));
output.append("</table>");
AppendFooter(&output);
return output;
}
#endif // OS_CHROMEOS
// AboutDnsHandler bounces the request back to the IO thread to collect
// the DNS information.
class AboutDnsHandler : public base::RefCountedThreadSafe<AboutDnsHandler> {
public:
static void Start(AboutSource* source, int request_id) {
scoped_refptr<AboutDnsHandler> handler(
new AboutDnsHandler(source, request_id));
handler->StartOnUIThread();
}
private:
AboutDnsHandler(AboutSource* source, int request_id)
: source_(source),
request_id_(request_id) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
}
// Calls FinishOnUIThread() on completion.
void StartOnUIThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
chrome_browser_net::Predictor* predictor =
source_->profile()->GetNetworkPredictor();
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
NewRunnableMethod(this, &AboutDnsHandler::StartOnIOThread, predictor));
}
void StartOnIOThread(chrome_browser_net::Predictor* predictor) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
std::string data;
AppendHeader(&data, 0, "About DNS");
AppendBody(&data);
chrome_browser_net::Predictor::PredictorGetHtmlInfo(predictor, &data);
AppendFooter(&data);
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
NewRunnableMethod(this, &AboutDnsHandler::FinishOnUIThread, data));
}
void FinishOnUIThread(const std::string& data) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
source_->FinishDataRequest(data, request_id_);
}
// Where the results are fed to.
scoped_refptr<AboutSource> source_;
// ID identifying the request.
int request_id_;
DISALLOW_COPY_AND_ASSIGN(AboutDnsHandler);
};
#if defined(USE_TCMALLOC)
std::string AboutTcmalloc() {
std::string data;
AboutTcmallocOutputsType* outputs =
AboutTcmallocOutputs::GetInstance()->outputs();
// Display any stats for which we sent off requests the last time.
AppendHeader(&data, 0, "About tcmalloc");
AppendBody(&data);
data.append("<p>Stats as of last page load;");
data.append("reload to get stats as of this page load.</p>\n");
data.append("<table width=\"100%\">\n");
for (AboutTcmallocOutputsType::const_iterator oit = outputs->begin();
oit != outputs->end();
oit++) {
data.append("<tr><td bgcolor=\"yellow\">");
data.append(oit->first);
data.append("</td></tr>\n");
data.append("<tr><td><pre>\n");
data.append(oit->second);
data.append("</pre></td></tr>\n");
}
data.append("</table>\n");
AppendFooter(&data);
// Reset our collector singleton.
outputs->clear();
// Populate the collector with stats from the local browser process
// and send off requests to all the renderer processes.
char buffer[1024 * 32];
MallocExtension::instance()->GetStats(buffer, sizeof(buffer));
std::string browser("Browser");
AboutTcmallocOutputs::GetInstance()->SetOutput(browser, buffer);
RenderProcessHost::iterator it(RenderProcessHost::AllHostsIterator());
while (!it.IsAtEnd()) {
it.GetCurrentValue()->Send(new ChromeViewMsg_GetRendererTcmalloc);
it.Advance();
}
return data;
}
#endif
std::string AboutHistograms(const std::string& query) {
TimeDelta wait_time = TimeDelta::FromMilliseconds(10000);
HistogramSynchronizer* current_synchronizer =
HistogramSynchronizer::CurrentSynchronizer();
DCHECK(current_synchronizer != NULL);
current_synchronizer->FetchRendererHistogramsSynchronously(wait_time);
std::string unescaped_query;
std::string unescaped_title("About Histograms");
if (!query.empty()) {
unescaped_query = net::UnescapeURLComponent(query, UnescapeRule::NORMAL);
unescaped_title += " - " + unescaped_query;
}
std::string data;
AppendHeader(&data, 0, unescaped_title);
AppendBody(&data);
base::StatisticsRecorder::WriteHTMLGraph(unescaped_query, &data);
AppendFooter(&data);
return data;
}
void AboutMemory(const std::string& path, AboutSource* source, int request_id) {
if (path == kStringsJsPath) {
// The AboutMemoryHandler cleans itself up, but |StartFetch()| will want the
// refcount to be greater than 0.
scoped_refptr<AboutMemoryHandler>
handler(new AboutMemoryHandler(source, request_id));
handler->StartFetch();
} else {
source->FinishDataRequest(
ResourceBundle::GetSharedInstance().GetRawDataResource(
path == kMemoryJsPath ? IDR_ABOUT_MEMORY_JS :
IDR_ABOUT_MEMORY_HTML).as_string(), request_id);
}
}
#if defined(TRACK_ALL_TASK_OBJECTS)
static std::string AboutTracking(const std::string& query) {
std::string unescaped_title("About Tracking");
if (!query.empty()) {
unescaped_title += " - ";
unescaped_title += net::UnescapeURLComponent(query, UnescapeRule::NORMAL);
}
std::string data;
AppendHeader(&data, 0, unescaped_title);
AppendBody(&data);
tracked_objects::ThreadData::WriteHTML(query, &data);
AppendFooter(&data);
return data;
}
#endif // TRACK_ALL_TASK_OBJECTS
// Handler for filling in the "about:stats" page, as called by the browser's
// About handler processing.
// |query| is roughly the query string of the about:stats URL.
// Returns a string containing the HTML to render for the about:stats page.
// Conditional Output:
// if |query| is "json", returns a JSON format of all counters.
// if |query| is "raw", returns plain text of counter deltas.
// otherwise, returns HTML with pretty JS/HTML to display the data.
std::string AboutStats(const std::string& query) {
// We keep the DictionaryValue tree live so that we can do delta
// stats computations across runs.
static DictionaryValue root;
static base::TimeTicks last_sample_time = base::TimeTicks::Now();
base::TimeTicks now = base::TimeTicks::Now();
base::TimeDelta time_since_last_sample = now - last_sample_time;
last_sample_time = now;
base::StatsTable* table = base::StatsTable::current();
if (!table)
return std::string();
// We maintain two lists - one for counters and one for timers.
// Timers actually get stored on both lists.
ListValue* counters;
if (!root.GetList("counters", &counters)) {
counters = new ListValue();
root.Set("counters", counters);
}
ListValue* timers;
if (!root.GetList("timers", &timers)) {
timers = new ListValue();
root.Set("timers", timers);
}
// NOTE: Counters start at index 1.
for (int index = 1; index <= table->GetMaxCounters(); index++) {
// Get the counter's full name
std::string full_name = table->GetRowName(index);
if (full_name.length() == 0)
break;
DCHECK_EQ(':', full_name[1]);
char counter_type = full_name[0];
std::string name = full_name.substr(2);
// JSON doesn't allow '.' in names.
size_t pos;
while ((pos = name.find(".")) != std::string::npos)
name.replace(pos, 1, ":");
// Try to see if this name already exists.
DictionaryValue* counter = NULL;
for (size_t scan_index = 0;
scan_index < counters->GetSize(); scan_index++) {
DictionaryValue* dictionary;
if (counters->GetDictionary(scan_index, &dictionary)) {
std::string scan_name;
if (dictionary->GetString("name", &scan_name) && scan_name == name) {
counter = dictionary;
}
} else {
NOTREACHED(); // Should always be there
}
}
if (counter == NULL) {
counter = new DictionaryValue();
counter->SetString("name", name);
counters->Append(counter);
}
switch (counter_type) {
case 'c':
{
int new_value = table->GetRowValue(index);
int prior_value = 0;
int delta = 0;
if (counter->GetInteger("value", &prior_value)) {
delta = new_value - prior_value;
}
counter->SetInteger("value", new_value);
counter->SetInteger("delta", delta);
}
break;
case 'm':
{
// TODO(mbelshe): implement me.
}
break;
case 't':
{
int time = table->GetRowValue(index);
counter->SetInteger("time", time);
// Store this on the timers list as well.
timers->Append(counter);
}
break;
default:
NOTREACHED();
}
}
std::string data;
if (query == "json" || query == kStringsJsPath) {
base::JSONWriter::WriteWithOptionalEscape(&root, true, false, &data);
if (query == kStringsJsPath)
data = "var templateData = " + data + ";";
} else if (query == "raw") {
// Dump the raw counters which have changed in text format.
data = "<pre>";
data.append(StringPrintf("Counter changes in the last %ldms\n",
static_cast<long int>(time_since_last_sample.InMilliseconds())));
for (size_t i = 0; i < counters->GetSize(); ++i) {
Value* entry = NULL;
bool rv = counters->Get(i, &entry);
if (!rv)
continue; // None of these should fail.
DictionaryValue* counter = static_cast<DictionaryValue*>(entry);
int delta;
rv = counter->GetInteger("delta", &delta);
if (!rv)
continue;
if (delta > 0) {
std::string name;
rv = counter->GetString("name", &name);
if (!rv)
continue;
int value;
rv = counter->GetInteger("value", &value);
if (!rv)
continue;
data.append(name);
data.append(":");
data.append(base::IntToString(delta));
data.append("\n");
}
}
data.append("</pre>");
} else {
// Get about_stats.html/js from resource bundle.
data = ResourceBundle::GetSharedInstance().GetRawDataResource(
(query == kStatsJsPath ? IDR_ABOUT_STATS_JS : IDR_ABOUT_STATS_HTML)).
as_string();
if (query != kStatsJsPath) {
// Clear the timer list since we stored the data in the timers list
// as well.
for (int index = static_cast<int>(timers->GetSize())-1; index >= 0;
index--) {
Value* value;
timers->Remove(index, &value);
// We don't care about the value pointer; it's still tracked
// on the counters list.
}
}
}
return data;
}
#if defined(OS_LINUX)
std::string AboutLinuxProxyConfig() {
std::string data;
AppendHeader(&data, 0,
l10n_util::GetStringUTF8(IDS_ABOUT_LINUX_PROXY_CONFIG_TITLE));
data.append("<style>body { max-width: 70ex; padding: 2ex 5ex; }</style>");
AppendBody(&data);
FilePath binary = CommandLine::ForCurrentProcess()->GetProgram();
data.append(l10n_util::GetStringFUTF8(
IDS_ABOUT_LINUX_PROXY_CONFIG_BODY,
l10n_util::GetStringUTF16(IDS_PRODUCT_NAME),
ASCIIToUTF16(binary.BaseName().value())));
AppendFooter(&data);
return data;
}
void AboutSandboxRow(std::string* data, const std::string& prefix, int name_id,
bool good) {
data->append("<tr><td>");
data->append(prefix);
data->append(l10n_util::GetStringUTF8(name_id));
if (good) {
data->append("</td><td style=\"color: green;\">");
data->append(
l10n_util::GetStringUTF8(IDS_CONFIRM_MESSAGEBOX_YES_BUTTON_LABEL));
} else {
data->append("</td><td style=\"color: red;\">");
data->append(
l10n_util::GetStringUTF8(IDS_CONFIRM_MESSAGEBOX_NO_BUTTON_LABEL));
}
data->append("</td></tr>");
}
std::string AboutSandbox() {
std::string data;
AppendHeader(&data, 0, l10n_util::GetStringUTF8(IDS_ABOUT_SANDBOX_TITLE));
AppendBody(&data);
data.append("<h1>");
data.append(l10n_util::GetStringUTF8(IDS_ABOUT_SANDBOX_TITLE));
data.append("</h1>");
const int status = ZygoteHost::GetInstance()->sandbox_status();
data.append("<table>");
AboutSandboxRow(&data, "", IDS_ABOUT_SANDBOX_SUID_SANDBOX,
status & ZygoteHost::kSandboxSUID);
AboutSandboxRow(&data, "&nbsp;&nbsp;", IDS_ABOUT_SANDBOX_PID_NAMESPACES,
status & ZygoteHost::kSandboxPIDNS);
AboutSandboxRow(&data, "&nbsp;&nbsp;", IDS_ABOUT_SANDBOX_NET_NAMESPACES,
status & ZygoteHost::kSandboxNetNS);
AboutSandboxRow(&data, "", IDS_ABOUT_SANDBOX_SECCOMP_SANDBOX,
status & ZygoteHost::kSandboxSeccomp);
data.append("</table>");
bool good = ((status & ZygoteHost::kSandboxSUID) &&
(status & ZygoteHost::kSandboxPIDNS)) ||
(status & ZygoteHost::kSandboxSeccomp);
if (good) {
data.append("<p style=\"color: green\">");
data.append(l10n_util::GetStringUTF8(IDS_ABOUT_SANDBOX_OK));
} else {
data.append("<p style=\"color: red\">");
data.append(l10n_util::GetStringUTF8(IDS_ABOUT_SANDBOX_BAD));
}
data.append("</p>");
AppendFooter(&data);
return data;
}
#endif
std::string AboutVersionStaticContent(const std::string& query) {
return ResourceBundle::GetSharedInstance().GetRawDataResource(
query == kVersionJsPath ?
IDR_ABOUT_VERSION_JS :
IDR_ABOUT_VERSION_HTML).as_string();
}
std::string AboutVersionStrings(DictionaryValue* localized_strings,
Profile* profile) {
localized_strings->SetString("title",
l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_TITLE));
chrome::VersionInfo version_info;
localized_strings->SetString("name",
l10n_util::GetStringUTF16(IDS_PRODUCT_NAME));
localized_strings->SetString("version", version_info.Version());
// Bug 79458: Need to evaluate the use of getting the version string on
// this thread.
base::ThreadRestrictions::ScopedAllowIO allow_io;
localized_strings->SetString("version_modifier",
chrome::VersionInfo::GetVersionStringModifier());
localized_strings->SetString("os_name",
l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_OS));
localized_strings->SetString("platform",
l10n_util::GetStringUTF16(IDS_PLATFORM_LABEL));
localized_strings->SetString("os_type", version_info.OSType());
localized_strings->SetString("webkit_version",
webkit_glue::GetWebKitVersion());
localized_strings->SetString("js_engine", "V8");
localized_strings->SetString("js_version", v8::V8::GetVersion());
// Obtain the version of the first enabled Flash plugin.
std::vector<webkit::WebPluginInfo> info_array;
webkit::npapi::PluginList::Singleton()->GetPluginInfoArray(
GURL(), "application/x-shockwave-flash", false, NULL, &info_array, NULL);
string16 flash_version =
l10n_util::GetStringUTF16(IDS_PLUGINS_DISABLED_PLUGIN);
PluginPrefs* plugin_prefs = PluginPrefs::GetForProfile(profile);
for (size_t i = 0; i < info_array.size(); ++i) {
if (plugin_prefs->IsPluginEnabled(info_array[i])) {
flash_version = info_array[i].version;
break;
}
}
localized_strings->SetString("flash_plugin", "Flash");
localized_strings->SetString("flash_version", flash_version);
localized_strings->SetString("company",
l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_COMPANY_NAME));
localized_strings->SetString("copyright",
l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_COPYRIGHT));
localized_strings->SetString("cl", version_info.LastChange());
localized_strings->SetString("official",
l10n_util::GetStringUTF16(
version_info.IsOfficialBuild() ?
IDS_ABOUT_VERSION_OFFICIAL
: IDS_ABOUT_VERSION_UNOFFICIAL));
localized_strings->SetString("user_agent_name",
l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_USER_AGENT));
localized_strings->SetString("useragent", webkit_glue::GetUserAgent(GURL()));
localized_strings->SetString("command_line_name",
l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_COMMAND_LINE));
#if defined(OS_WIN)
localized_strings->SetString("command_line",
WideToUTF16(CommandLine::ForCurrentProcess()->GetCommandLineString()));
#elif defined(OS_POSIX)
std::string command_line = "";
typedef std::vector<std::string> ArgvList;
const ArgvList& argv = CommandLine::ForCurrentProcess()->argv();
for (ArgvList::const_iterator iter = argv.begin(); iter != argv.end(); iter++)
command_line += " " + *iter;
// TODO(viettrungluu): |command_line| could really have any encoding, whereas
// below we assumes it's UTF-8.
localized_strings->SetString("command_line", command_line);
#endif
// Allow IO temporarily based on allow_io (defined above)
// since the following operation will complete quickly
localized_strings->SetString("executable_path_name",
l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_EXECUTABLE_PATH));
FilePath executable_path = CommandLine::ForCurrentProcess()->GetProgram();
if (file_util::AbsolutePath(&executable_path)) {
localized_strings->SetString("executable_path", executable_path.value());
} else {
localized_strings->SetString("executable_path",
l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_PATH_NOTFOUND));
}
localized_strings->SetString("profile_path_name",
l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_PROFILE_PATH));
if (profile) {
FilePath profile_path = profile->GetPath();
if (file_util::AbsolutePath(&profile_path)) {
localized_strings->SetString("profile_path", profile_path.value());
} else {
localized_strings->SetString("profile_path",
l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_PATH_NOTFOUND));
}
} else {
localized_strings->SetString("profile_path",
l10n_util::GetStringUTF16(IDS_ABOUT_VERSION_PATH_NOTFOUND));
}
std::string data;
jstemplate_builder::AppendJsonJS(localized_strings, &data);
return data;
}
// AboutMemoryHandler ----------------------------------------------------------
// Helper for AboutMemory to bind results from a ProcessMetrics object
// to a DictionaryValue. Fills ws_usage and comm_usage so that the objects
// can be used in caller's scope (e.g for appending to a net total).
void AboutMemoryHandler::BindProcessMetrics(DictionaryValue* data,
ProcessMemoryInformation* info) {
DCHECK(data && info);
// Bind metrics to dictionary.
data->SetInteger("ws_priv", static_cast<int>(info->working_set.priv));
data->SetInteger("ws_shareable",
static_cast<int>(info->working_set.shareable));
data->SetInteger("ws_shared", static_cast<int>(info->working_set.shared));
data->SetInteger("comm_priv", static_cast<int>(info->committed.priv));
data->SetInteger("comm_map", static_cast<int>(info->committed.mapped));
data->SetInteger("comm_image", static_cast<int>(info->committed.image));
data->SetInteger("pid", info->pid);
data->SetString("version", info->version);
data->SetInteger("processes", info->num_processes);
}
// Helper for AboutMemory to append memory usage information for all
// sub-processes (i.e. renderers, plugins) used by Chrome.
void AboutMemoryHandler::AppendProcess(ListValue* child_data,
ProcessMemoryInformation* info) {
DCHECK(child_data && info);
// Append a new DictionaryValue for this renderer to our list.
DictionaryValue* child = new DictionaryValue();
child_data->Append(child);
BindProcessMetrics(child, info);
std::string child_label(
ChildProcessInfo::GetFullTypeNameInEnglish(info->type,
info->renderer_type));
if (info->is_diagnostics)
child_label.append(" (diagnostics)");
child->SetString("child_name", child_label);
ListValue* titles = new ListValue();
child->Set("titles", titles);
for (size_t i = 0; i < info->titles.size(); ++i)
titles->Append(new StringValue(info->titles[i]));
}
void AboutMemoryHandler::OnDetailsAvailable() {
// the root of the JSON hierarchy for about:memory jstemplate
DictionaryValue root;
ListValue* browsers = new ListValue();
root.Set("browsers", browsers);
const std::vector<ProcessData>& browser_processes = processes();
// Aggregate per-process data into browser summary data.
std::wstring log_string;
for (size_t index = 0; index < browser_processes.size(); index++) {
if (browser_processes[index].processes.empty())
continue;
// Sum the information for the processes within this browser.
ProcessMemoryInformation aggregate;
ProcessMemoryInformationList::const_iterator iterator;
iterator = browser_processes[index].processes.begin();
aggregate.pid = iterator->pid;
aggregate.version = iterator->version;
while (iterator != browser_processes[index].processes.end()) {
if (!iterator->is_diagnostics ||
browser_processes[index].processes.size() == 1) {
aggregate.working_set.priv += iterator->working_set.priv;
aggregate.working_set.shared += iterator->working_set.shared;
aggregate.working_set.shareable += iterator->working_set.shareable;
aggregate.committed.priv += iterator->committed.priv;
aggregate.committed.mapped += iterator->committed.mapped;
aggregate.committed.image += iterator->committed.image;
aggregate.num_processes++;
}
++iterator;
}
DictionaryValue* browser_data = new DictionaryValue();
browsers->Append(browser_data);
browser_data->SetString("name", browser_processes[index].name);
BindProcessMetrics(browser_data, &aggregate);
// We log memory info as we record it.
if (log_string.length() > 0)
log_string.append(L", ");
log_string.append(UTF16ToWide(browser_processes[index].name));
log_string.append(L", ");
log_string.append(UTF8ToWide(
base::Int64ToString(aggregate.working_set.priv)));
log_string.append(L", ");
log_string.append(UTF8ToWide(
base::Int64ToString(aggregate.working_set.shared)));
log_string.append(L", ");
log_string.append(UTF8ToWide(
base::Int64ToString(aggregate.working_set.shareable)));
}
if (log_string.length() > 0)
VLOG(1) << "memory: " << log_string;
// Set the browser & renderer detailed process data.
DictionaryValue* browser_data = new DictionaryValue();
root.Set("browzr_data", browser_data);
ListValue* child_data = new ListValue();
root.Set("child_data", child_data);
ProcessData process = browser_processes[0]; // Chrome is the first browser.
root.SetString("current_browser_name", process.name);
for (size_t index = 0; index < process.processes.size(); index++) {
if (process.processes[index].type == ChildProcessInfo::BROWSER_PROCESS)
BindProcessMetrics(browser_data, &process.processes[index]);
else
AppendProcess(child_data, &process.processes[index]);
}
root.SetBoolean("show_other_browsers",
browser_defaults::kShowOtherBrowsersInAboutMemory);
std::string data;
jstemplate_builder::AppendJsonJS(&root, &data);
source_->FinishDataRequest(data, request_id_);
}
#if defined(OS_CHROMEOS)
// ChromeOSAboutVersionHandler -----------------------------------------------
ChromeOSAboutVersionHandler::ChromeOSAboutVersionHandler(
AboutSource* source,
int request_id)
: source_(source),
request_id_(request_id) {
loader_.GetVersion(&consumer_,
base::Bind(&ChromeOSAboutVersionHandler::OnVersion,
base::Unretained(this)),
chromeos::VersionLoader::VERSION_FULL);
}
void ChromeOSAboutVersionHandler::OnVersion(
chromeos::VersionLoader::Handle handle,
std::string version) {
DictionaryValue localized_strings;
localized_strings.SetString("os_version", version);
source_->FinishDataRequest(AboutVersionStrings(
&localized_strings, source_->profile()), request_id_);
// CancelableRequestProvider isn't happy when it's deleted and servicing a
// task, so we delay the deletion.
MessageLoop::current()->DeleteSoon(FROM_HERE, this);
}
#endif
} // namespace
// AboutSource -----------------------------------------------------------------
AboutSource::AboutSource(const std::string& source_name, Profile* profile)
: DataSource(source_name, MessageLoop::current()),
profile_(profile) {
}
AboutSource::~AboutSource() {
}
void AboutSource::StartDataRequest(const std::string& path,
bool is_incognito,
int request_id) {
std::string response;
std::string host = source_name();
// Add your data source here, in alphabetical order.
if (host == chrome::kChromeUIChromeURLsHost) {
response = ChromeURLs();
} else if (host == chrome::kChromeUICreditsHost) {
int idr = (path == kCreditsJsPath) ? IDR_CREDITS_JS : IDR_CREDITS_HTML;
response = ResourceBundle::GetSharedInstance().GetRawDataResource(
idr).as_string();
#if defined(OS_CHROMEOS)
} else if (host == chrome::kChromeUICryptohomeHost) {
response = AboutCryptohome(path);
} else if (host == chrome::kChromeUIDiscardsHost) {
response = AboutDiscards(path);
#endif
} else if (host == chrome::kChromeUIDNSHost) {
AboutDnsHandler::Start(this, request_id);
return;
} else if (host == chrome::kChromeUIHistogramsHost) {
response = AboutHistograms(path);
#if defined(OS_LINUX)
} else if (host == chrome::kChromeUILinuxProxyConfigHost) {
response = AboutLinuxProxyConfig();
#endif
} else if (host == chrome::kChromeUIMemoryHost) {
response = GetAboutMemoryRedirectResponse(profile());
} else if (host == chrome::kChromeUIMemoryRedirectHost) {
AboutMemory(path, this, request_id);
return;
#if defined(OS_CHROMEOS)
} else if (host == chrome::kChromeUINetworkHost) {
response = AboutNetwork(path);
} else if (host == chrome::kChromeUIOSCreditsHost) {
response = ResourceBundle::GetSharedInstance().GetRawDataResource(
IDR_OS_CREDITS_HTML).as_string();
#endif
#if defined(OS_LINUX)
} else if (host == chrome::kChromeUISandboxHost) {
response = AboutSandbox();
#endif
} else if (host == chrome::kChromeUIStatsHost) {
response = AboutStats(path);
#if defined(TRACK_ALL_TASK_OBJECTS)
} else if (host == chrome::kChromeUITrackingHost) {
response = AboutTracking(path);
#endif
#if defined(USE_TCMALLOC)
} else if (host == chrome::kChromeUITCMallocHost) {
response = AboutTcmalloc();
#endif
} else if (host == chrome::kChromeUITermsHost) {
#if defined(OS_CHROMEOS)
ChromeOSTermsHandler::Start(this, path, request_id);
return;
#else
response = ResourceBundle::GetSharedInstance().GetRawDataResource(
IDR_TERMS_HTML).as_string();
#endif
} else if (host == chrome::kChromeUIVersionHost) {
if (path == kStringsJsPath) {
#if defined(OS_CHROMEOS)
new ChromeOSAboutVersionHandler(this, request_id);
return;
#else
DictionaryValue localized_strings;
localized_strings.SetString("os_version", "");
response = AboutVersionStrings(&localized_strings, profile_);
#endif
} else {
response = AboutVersionStaticContent(path);
}
}
FinishDataRequest(response, request_id);
}
void AboutSource::FinishDataRequest(const std::string& html, int request_id) {
std::string html_copy(html);
SendResponse(request_id, base::RefCountedString::TakeString(&html_copy));
}
std::string AboutSource::GetMimeType(const std::string& path) const {
if (path == kCreditsJsPath ||
path == kStatsJsPath ||
path == kStringsJsPath ||
path == kVersionJsPath ||
path == kMemoryJsPath) {
return "application/javascript";
}
return "text/html";
}
// -----------------------------------------------------------------------------
void InitializeAboutDataSource(const std::string& name,
content::BrowserContext* browser_context) {
Profile* profile = static_cast<Profile*>(browser_context);
ChromeURLDataManager* manager = profile->GetChromeURLDataManager();
for (size_t i = 0; i < arraysize(kAboutSourceNames); i++) {
if (name == kAboutSourceNames[i]) {
manager->AddDataSource(new AboutSource(name, profile));
return;
}
}
}
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);
// 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);
} else if (host == chrome::kChromeUIGpuCleanHost) {
GpuProcessHost::SendOnIO(
0, content::CAUSE_FOR_GPU_LAUNCH_NO_LAUNCH, new GpuMsg_Clean());
} else if (host == chrome::kChromeUIGpuCrashHost) {
GpuProcessHost::SendOnIO(
0, content::CAUSE_FOR_GPU_LAUNCH_ABOUT_GPUCRASH, new GpuMsg_Crash());
} else if (host == chrome::kChromeUIGpuHangHost) {
GpuProcessHost::SendOnIO(
0, content::CAUSE_FOR_GPU_LAUNCH_ABOUT_GPUHANG, new GpuMsg_Hang());
#if defined(OS_CHROMEOS)
} else if (host == chrome::kChromeUIRotateHost) {
sensors::ScreenOrientation change;
std::string query(url->query());
if (query == "left") {
change.upward = sensors::ScreenOrientation::LEFT;
} else if (query == "right") {
change.upward = sensors::ScreenOrientation::RIGHT;
} else if (query == "top") {
change.upward = sensors::ScreenOrientation::TOP;
} else if (query == "bottom") {
change.upward = sensors::ScreenOrientation::BOTTOM;
} else {
NOTREACHED() << "Unknown orientation";
}
sensors::Provider::GetInstance()->ScreenOrientationChanged(change);
// Nothing to communicate to the user, so show a blank page.
host = chrome::kChromeUIBlankHost;
*url = GURL(chrome::kChromeUIBlankHost);
#endif
}
// Initialize any potentially corresponding AboutSource handler.
InitializeAboutDataSource(host, browser_context);
return true;
}
bool HandleNonNavigationAboutURL(const GURL& url) {
// 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
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;
}