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android / platform / external / chromium_org / 58537e2 / . / chrome / browser / ui / webui / about_ui.cc
blob: cd9f7cf0a564ff976988119fe7335805c18def92 [file] [log] [blame]
// Copyright (c) 2012 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/ui/webui/about_ui.h"
#include <algorithm>
#include <string>
#include <utility>
#include <vector>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/callback.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/statistics_recorder.h"
#include "base/metrics/stats_table.h"
#include "base/path_service.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_piece.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/thread.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/net/predictor.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/ui/browser_dialogs.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/net/url_fixer_upper.h"
#include "chrome/common/render_messages.h"
#include "chrome/common/url_constants.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/url_data_source.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_client.h"
#include "content/public/common/process_type.h"
#include "google_apis/gaia/google_service_auth_error.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/load_flags.h"
#include "net/base/net_util.h"
#include "net/http/http_response_headers.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_request_status.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/webui/jstemplate_builder.h"
#include "ui/webui/web_ui_util.h"
#include "url/gurl.h"
#if defined(ENABLE_THEMES)
#include "chrome/browser/ui/webui/theme_source.h"
#endif
#if defined(OS_LINUX) || defined(OS_OPENBSD)
#include "content/public/browser/zygote_host_linux.h"
#include "content/public/common/sandbox_linux.h"
#endif
#if defined(OS_WIN)
#include "chrome/browser/enumerate_modules_model_win.h"
#endif
#if defined(OS_CHROMEOS)
#include "chrome/browser/browser_process_platform_part_chromeos.h"
#include "chrome/browser/chromeos/customization_document.h"
#include "chrome/browser/chromeos/memory/oom_priority_manager.h"
#include "chromeos/chromeos_switches.h"
#endif
using base::Time;
using base::TimeDelta;
using content::BrowserThread;
using content::WebContents;
namespace {
const char kCreditsJsPath[] = "credits.js";
const char kMemoryJsPath[] = "memory.js";
const char kMemoryCssPath[] = "about_memory.css";
const char kStatsJsPath[] = "stats.js";
const char kStringsJsPath[] = "strings.js";
// chrome://terms falls back to offline page after kOnlineTermsTimeoutSec.
const int kOnlineTermsTimeoutSec = 7;
// 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) {
return base::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:
explicit AboutMemoryHandler(
const content::URLDataSource::GotDataCallback& callback)
: callback_(callback) {
}
virtual void OnDetailsAvailable() OVERRIDE;
private:
virtual ~AboutMemoryHandler() {}
void BindProcessMetrics(DictionaryValue* data,
ProcessMemoryInformation* info);
void AppendProcess(ListValue* child_data, ProcessMemoryInformation* info);
content::URLDataSource::GotDataCallback callback_;
DISALLOW_COPY_AND_ASSIGN(AboutMemoryHandler);
};
#if defined(OS_CHROMEOS)
// Helper class that fetches the online Chrome OS terms. Empty string is
// returned once fetching failed or exceeded |kOnlineTermsTimeoutSec|.
class ChromeOSOnlineTermsHandler : public net::URLFetcherDelegate {
public:
typedef base::Callback<void (ChromeOSOnlineTermsHandler*)> FetchCallback;
explicit ChromeOSOnlineTermsHandler(const FetchCallback& callback,
const std::string& locale)
: fetch_callback_(callback) {
std::string eula_URL = base::StringPrintf(chrome::kOnlineEulaURLPath,
locale.c_str());
eula_fetcher_.reset(net::URLFetcher::Create(0 /* ID used for testing */,
GURL(eula_URL),
net::URLFetcher::GET,
this));
eula_fetcher_->SetRequestContext(
g_browser_process->system_request_context());
eula_fetcher_->AddExtraRequestHeader("Accept: text/html");
eula_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
net::LOAD_DO_NOT_SAVE_COOKIES |
net::LOAD_DISABLE_CACHE);
eula_fetcher_->Start();
// Abort the download attempt if it takes longer than one minute.
download_timer_.Start(FROM_HERE,
base::TimeDelta::FromSeconds(kOnlineTermsTimeoutSec),
this,
&ChromeOSOnlineTermsHandler::OnDownloadTimeout);
}
void GetResponseResult(std::string* response_string) {
std::string mime_type;
if (!eula_fetcher_ ||
!eula_fetcher_->GetStatus().is_success() ||
eula_fetcher_->GetResponseCode() != 200 ||
!eula_fetcher_->GetResponseHeaders()->GetMimeType(&mime_type) ||
mime_type != "text/html" ||
!eula_fetcher_->GetResponseAsString(response_string)) {
response_string->clear();
}
}
private:
// Prevents allocation on the stack. ChromeOSOnlineTermsHandler should be
// created by 'operator new'. |this| takes care of destruction.
virtual ~ChromeOSOnlineTermsHandler() {}
// net::URLFetcherDelegate:
virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE {
if (source != eula_fetcher_.get()) {
NOTREACHED() << "Callback from foreign URL fetcher";
return;
}
fetch_callback_.Run(this);
delete this;
}
void OnDownloadTimeout() {
eula_fetcher_.reset();
fetch_callback_.Run(this);
delete this;
}
// Timer that enforces a timeout on the attempt to download the
// ChromeOS Terms.
base::OneShotTimer<ChromeOSOnlineTermsHandler> download_timer_;
// |fetch_callback_| called when fetching succeeded or failed.
FetchCallback fetch_callback_;
// Helper to fetch online eula.
scoped_ptr<net::URLFetcher> eula_fetcher_;
DISALLOW_COPY_AND_ASSIGN(ChromeOSOnlineTermsHandler);
};
class ChromeOSTermsHandler
: public base::RefCountedThreadSafe<ChromeOSTermsHandler> {
public:
static void Start(const std::string& path,
const content::URLDataSource::GotDataCallback& callback) {
scoped_refptr<ChromeOSTermsHandler> handler(
new ChromeOSTermsHandler(path, callback));
handler->StartOnUIThread();
}
private:
friend class base::RefCountedThreadSafe<ChromeOSTermsHandler>;
ChromeOSTermsHandler(const std::string& path,
const content::URLDataSource::GotDataCallback& callback)
: path_(path),
callback_(callback),
// Previously we were using "initial locale" http://crbug.com/145142
locale_(g_browser_process->GetApplicationLocale()) {
}
virtual ~ChromeOSTermsHandler() {}
void StartOnUIThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (path_ == chrome::kOemEulaURLPath) {
// Load local OEM EULA from the disk.
BrowserThread::PostTask(
BrowserThread::FILE, FROM_HERE,
base::Bind(&ChromeOSTermsHandler::LoadOemEulaFileOnFileThread, this));
} else if (CommandLine::ForCurrentProcess()->HasSwitch(
chromeos::switches::kDisableOnlineEULA)) {
// Fallback to the local file.
BrowserThread::PostTask(
BrowserThread::FILE, FROM_HERE,
base::Bind(&ChromeOSTermsHandler::LoadEulaFileOnFileThread, this));
} else {
// Try to load online version of ChromeOS terms first.
// ChromeOSOnlineTermsHandler object destroys itself.
new ChromeOSOnlineTermsHandler(
base::Bind(&ChromeOSTermsHandler::OnOnlineEULAFetched, this),
locale_);
}
}
void OnOnlineEULAFetched(ChromeOSOnlineTermsHandler* loader) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
loader->GetResponseResult(&contents_);
if (contents_.empty()) {
// Load local ChromeOS terms from the file.
BrowserThread::PostTask(
BrowserThread::FILE, FROM_HERE,
base::Bind(&ChromeOSTermsHandler::LoadEulaFileOnFileThread, this));
} else {
ResponseOnUIThread();
}
}
void LoadOemEulaFileOnFileThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
const chromeos::StartupCustomizationDocument* customization =
chromeos::StartupCustomizationDocument::GetInstance();
if (customization->IsReady()) {
base::FilePath oem_eula_file_path;
if (net::FileURLToFilePath(GURL(customization->GetEULAPage(locale_)),
&oem_eula_file_path)) {
if (!base::ReadFileToString(oem_eula_file_path, &contents_)) {
contents_.clear();
}
}
}
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&ChromeOSTermsHandler::ResponseOnUIThread, this));
}
void LoadEulaFileOnFileThread() {
std::string file_path =
base::StringPrintf(chrome::kEULAPathFormat, locale_.c_str());
if (!base::ReadFileToString(base::FilePath(file_path), &contents_)) {
// No EULA for given language - try en-US as default.
file_path = base::StringPrintf(chrome::kEULAPathFormat, "en-US");
if (!base::ReadFileToString(base::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,
base::Bind(&ChromeOSTermsHandler::ResponseOnUIThread, this));
}
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_ = l10n_util::GetStringUTF8(IDS_TERMS_HTML);
callback_.Run(base::RefCountedString::TakeString(&contents_));
}
// Path in the URL.
const std::string path_;
// Callback to run with the response.
content::URLDataSource::GotDataCallback callback_;
// Locale of the EULA.
const std::string locale_;
// EULA contents that was loaded from file.
std::string contents_;
DISALLOW_COPY_AND_ASSIGN(ChromeOSTermsHandler);
};
#endif
} // namespace
// Individual about handlers ---------------------------------------------------
namespace about_ui {
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(net::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");
}
} // namespace about_ui
using about_ui::AppendHeader;
using about_ui::AppendBody;
using about_ui::AppendFooter;
namespace {
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> hosts(
chrome::kChromeHostURLs,
chrome::kChromeHostURLs + chrome::kNumberOfChromeHostURLs);
std::sort(hosts.begin(), hosts.end());
for (std::vector<std::string>::const_iterator i = hosts.begin();
i != hosts.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
// 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 <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>";
}
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);
}
void AddContentSecurityPolicy(std::string* output) {
output->append("<meta http-equiv='Content-Security-Policy' "
"content='default-src 'none';'>");
}
// TODO(stevenjb): L10N AboutDiscards.
std::string AboutDiscardsRun() {
std::string output;
AppendHeader(&output, 0, "About discards");
output.append(
base::StringPrintf("<meta http-equiv='refresh' content='2;%s'>",
chrome::kChromeUIDiscardsURL));
AddContentSecurityPolicy(&output);
output.append(WrapWithTag("p", "Discarding a tab..."));
g_browser_process->platform_part()->
oom_priority_manager()->LogMemoryAndDiscardTab();
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");
AddContentSecurityPolicy(&output);
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>");
chromeos::OomPriorityManager* oom =
g_browser_process->platform_part()->oom_priority_manager();
std::vector<string16> titles = oom->GetTabTitles();
if (!titles.empty()) {
output.append("<ul>");
std::vector<string16>::iterator it = titles.begin();
for ( ; it != titles.end(); ++it) {
std::string title = UTF16ToUTF8(*it);
title = net::EscapeForHTML(title);
output.append(WrapWithTag("li", title));
}
output.append("</ul>");
} else {
output.append("<p>None found. Wait 10 seconds, then refresh.</p>");
}
output.append(base::StringPrintf("%d discards this session. ",
oom->discard_count()));
output.append(base::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>");
// Start with summary statistics.
output.append(AddStringRow(
"Total", base::IntToString(meminfo.total / 1024)));
output.append(AddStringRow(
"Free", base::IntToString(meminfo.free / 1024)));
int mem_allocated_kb = meminfo.active_anon + meminfo.inactive_anon;
#if defined(ARCH_CPU_ARM_FAMILY)
// ARM counts allocated graphics memory separately from anonymous.
if (meminfo.gem_size != -1)
mem_allocated_kb += meminfo.gem_size / 1024;
#endif
output.append(AddStringRow(
"Allocated", base::IntToString(mem_allocated_kb / 1024)));
// Add some space, then detailed numbers.
output.append(AddStringRow("&nbsp;", "&nbsp;"));
output.append(AddStringRow(
"Buffered", base::IntToString(meminfo.buffers / 1024)));
output.append(AddStringRow(
"Cached", base::IntToString(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(AddStringRow(
"Graphics", base::IntToString(meminfo.gem_size / 1024 / 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(Profile* profile,
const content::URLDataSource::GotDataCallback& callback) {
scoped_refptr<AboutDnsHandler> handler(
new AboutDnsHandler(profile, callback));
handler->StartOnUIThread();
}
private:
friend class base::RefCountedThreadSafe<AboutDnsHandler>;
AboutDnsHandler(Profile* profile,
const content::URLDataSource::GotDataCallback& callback)
: profile_(profile),
callback_(callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
}
virtual ~AboutDnsHandler() {}
// Calls FinishOnUIThread() on completion.
void StartOnUIThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
chrome_browser_net::Predictor* predictor = profile_->GetNetworkPredictor();
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(&AboutDnsHandler::StartOnIOThread, this, 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,
base::Bind(&AboutDnsHandler::FinishOnUIThread, this, data));
}
void FinishOnUIThread(const std::string& data) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
std::string data_copy(data);
callback_.Run(base::RefCountedString::TakeString(&data_copy));
}
Profile* profile_;
// Callback to run with the response.
content::URLDataSource::GotDataCallback callback_;
DISALLOW_COPY_AND_ASSIGN(AboutDnsHandler);
};
void FinishMemoryDataRequest(
const std::string& path,
const content::URLDataSource::GotDataCallback& callback) {
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(callback));
// TODO(jamescook): Maybe this shouldn't update UMA?
handler->StartFetch(MemoryDetails::UPDATE_USER_METRICS);
} else {
int id = IDR_ABOUT_MEMORY_HTML;
if (path == kMemoryJsPath) {
id = IDR_ABOUT_MEMORY_JS;
} else if (path == kMemoryCssPath) {
id = IDR_ABOUT_MEMORY_CSS;
}
std::string result =
ResourceBundle::GetSharedInstance().GetRawDataResource(id).as_string();
callback.Run(base::RefCountedString::TakeString(&result));
}
}
// 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.
CR_DEFINE_STATIC_LOCAL(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::WriteWithOptions(
&root,
base::JSONWriter::OPTIONS_DO_NOT_ESCAPE |
base::JSONWriter::OPTIONS_PRETTY_PRINT,
&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(base::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--) {
scoped_ptr<Value> value;
timers->Remove(index, &value);
// We don't care about the value pointer; it's still tracked
// on the counters list.
ignore_result(value.release());
}
}
}
return data;
}
#if defined(OS_LINUX) || defined(OS_OPENBSD)
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);
base::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>");
// Get expected sandboxing status of renderers.
const int status = content::ZygoteHost::GetInstance()->GetSandboxStatus();
data.append("<table>");
AboutSandboxRow(&data,
std::string(),
IDS_ABOUT_SANDBOX_SUID_SANDBOX,
status & content::kSandboxLinuxSUID);
AboutSandboxRow(&data, "&nbsp;&nbsp;", IDS_ABOUT_SANDBOX_PID_NAMESPACES,
status & content::kSandboxLinuxPIDNS);
AboutSandboxRow(&data, "&nbsp;&nbsp;", IDS_ABOUT_SANDBOX_NET_NAMESPACES,
status & content::kSandboxLinuxNetNS);
AboutSandboxRow(&data,
std::string(),
IDS_ABOUT_SANDBOX_SECCOMP_BPF_SANDBOX,
status & content::kSandboxLinuxSeccompBpf);
data.append("</table>");
// The setuid sandbox is required as our first-layer sandbox.
bool good_layer1 = status & content::kSandboxLinuxSUID &&
status & content::kSandboxLinuxPIDNS &&
status & content::kSandboxLinuxNetNS;
// A second-layer sandbox is also required to be adequately sandboxed.
bool good_layer2 = status & content::kSandboxLinuxSeccompBpf;
bool good = good_layer1 && good_layer2;
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
// 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(
ProcessMemoryInformation::GetFullTypeNameInEnglish(info->process_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
scoped_ptr<DictionaryValue> root(new DictionaryValue);
ListValue* browsers = new ListValue();
root->Set("browsers", browsers);
const std::vector<ProcessData>& browser_processes = processes();
// Aggregate per-process data into browser summary data.
string16 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.empty())
log_string += ASCIIToUTF16(", ");
log_string += browser_processes[index].name + ASCIIToUTF16(", ") +
base::Int64ToString16(aggregate.working_set.priv) +
ASCIIToUTF16(", ") +
base::Int64ToString16(aggregate.working_set.shared) +
ASCIIToUTF16(", ") +
base::Int64ToString16(aggregate.working_set.shareable);
}
if (!log_string.empty())
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].process_type == content::PROCESS_TYPE_BROWSER)
BindProcessMetrics(browser_data, &process.processes[index]);
else
AppendProcess(child_data, &process.processes[index]);
}
root->SetBoolean("show_other_browsers",
browser_defaults::kShowOtherBrowsersInAboutMemory);
DictionaryValue load_time_data;
load_time_data.SetString(
"summary_desc",
l10n_util::GetStringUTF16(IDS_MEMORY_USAGE_SUMMARY_DESC));
webui::SetFontAndTextDirection(&load_time_data);
load_time_data.Set("jstemplateData", root.release());
webui::UseVersion2 version2;
std::string data;
webui::AppendJsonJS(&load_time_data, &data);
callback_.Run(base::RefCountedString::TakeString(&data));
}
} // namespace
// AboutUIHTMLSource ----------------------------------------------------------
AboutUIHTMLSource::AboutUIHTMLSource(const std::string& source_name,
Profile* profile)
: source_name_(source_name),
profile_(profile) {}
AboutUIHTMLSource::~AboutUIHTMLSource() {}
std::string AboutUIHTMLSource::GetSource() const {
return source_name_;
}
void AboutUIHTMLSource::StartDataRequest(
const std::string& path,
int render_process_id,
int render_view_id,
const content::URLDataSource::GotDataCallback& callback) {
std::string response;
// Add your data source here, in alphabetical order.
if (source_name_ == chrome::kChromeUIChromeURLsHost) {
response = ChromeURLs();
} else if (source_name_ == 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 (source_name_ == chrome::kChromeUIDiscardsHost) {
response = AboutDiscards(path);
#endif
} else if (source_name_ == chrome::kChromeUIDNSHost) {
AboutDnsHandler::Start(profile(), callback);
return;
#if defined(OS_LINUX) || defined(OS_OPENBSD)
} else if (source_name_ == chrome::kChromeUILinuxProxyConfigHost) {
response = AboutLinuxProxyConfig();
#endif
} else if (source_name_ == chrome::kChromeUIMemoryHost) {
response = GetAboutMemoryRedirectResponse(profile());
} else if (source_name_ == chrome::kChromeUIMemoryRedirectHost) {
FinishMemoryDataRequest(path, callback);
return;
#if defined(OS_CHROMEOS)
} else if (source_name_ == chrome::kChromeUIOSCreditsHost) {
response = ResourceBundle::GetSharedInstance().GetRawDataResource(
IDR_OS_CREDITS_HTML).as_string();
#endif
#if defined(OS_LINUX) || defined(OS_OPENBSD)
} else if (source_name_ == chrome::kChromeUISandboxHost) {
response = AboutSandbox();
#endif
} else if (source_name_ == chrome::kChromeUIStatsHost) {
response = AboutStats(path);
} else if (source_name_ == chrome::kChromeUITermsHost) {
#if defined(OS_CHROMEOS)
ChromeOSTermsHandler::Start(path, callback);
return;
#else
response = l10n_util::GetStringUTF8(IDS_TERMS_HTML);
#endif
}
FinishDataRequest(response, callback);
}
void AboutUIHTMLSource::FinishDataRequest(
const std::string& html,
const content::URLDataSource::GotDataCallback& callback) {
std::string html_copy(html);
callback.Run(base::RefCountedString::TakeString(&html_copy));
}
std::string AboutUIHTMLSource::GetMimeType(const std::string& path) const {
if (path == kCreditsJsPath ||
path == kStatsJsPath ||
path == kStringsJsPath ||
path == kMemoryJsPath) {
return "application/javascript";
}
return "text/html";
}
bool AboutUIHTMLSource::ShouldAddContentSecurityPolicy() const {
#if defined(OS_CHROMEOS)
if (source_name_ == chrome::kChromeUIOSCreditsHost)
return false;
#endif
return content::URLDataSource::ShouldAddContentSecurityPolicy();
}
bool AboutUIHTMLSource::ShouldDenyXFrameOptions() const {
#if defined(OS_CHROMEOS)
if (source_name_ == chrome::kChromeUITermsHost) {
// chrome://terms page is embedded in iframe to chrome://oobe.
return false;
}
#endif
return content::URLDataSource::ShouldDenyXFrameOptions();
}
AboutUI::AboutUI(content::WebUI* web_ui, const std::string& name)
: WebUIController(web_ui) {
Profile* profile = Profile::FromWebUI(web_ui);
#if defined(ENABLE_THEMES)
// Set up the chrome://theme/ source.
ThemeSource* theme = new ThemeSource(profile);
content::URLDataSource::Add(profile, theme);
#endif
content::URLDataSource::Add(profile, new AboutUIHTMLSource(name, profile));
}