| // 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 <stddef.h> |
| #include <stdint.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/files/file_util.h" |
| #include "base/format_macros.h" |
| #include "base/i18n/number_formatting.h" |
| #include "base/json/json_writer.h" |
| #include "base/macros.h" |
| #include "base/memory/singleton.h" |
| #include "base/metrics/statistics_recorder.h" |
| #include "base/process/process_metrics.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/string_piece.h" |
| #include "base/strings/string_split.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 "build/build_config.h" |
| #include "chrome/browser/about_flags.h" |
| #include "chrome/browser/browser_process.h" |
| #include "chrome/browser/defaults.h" |
| #include "chrome/browser/memory/tab_manager.h" |
| #include "chrome/browser/memory/tab_stats.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/url_constants.h" |
| #include "chrome/grit/chromium_strings.h" |
| #include "chrome/grit/generated_resources.h" |
| #include "chrome/grit/locale_settings.h" |
| #include "components/strings/grit/components_locale_settings.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/components_resources.h" |
| #include "net/base/escape.h" |
| #include "net/base/filename_util.h" |
| #include "net/base/load_flags.h" |
| #include "net/http/http_response_headers.h" |
| #include "net/url_request/url_fetcher.h" |
| #include "net/url_request/url_request_status.h" |
| #include "third_party/brotli/dec/decode.h" |
| #include "ui/base/l10n/l10n_util.h" |
| #include "ui/base/resource/resource_bundle.h" |
| #include "ui/base/webui/jstemplate_builder.h" |
| #include "ui/base/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/win/enumerate_modules_model.h" |
| #endif |
| |
| #if defined(OS_CHROMEOS) |
| #include "chrome/browser/browser_process_platform_part_chromeos.h" |
| #include "chrome/browser/chromeos/customization/customization_document.h" |
| #endif |
| |
| using base::Time; |
| using base::TimeDelta; |
| using content::BrowserThread; |
| using content::WebContents; |
| |
| namespace { |
| |
| const char kCreditsJsPath[] = "credits.js"; |
| const char kStatsJsPath[] = "stats.js"; |
| const char kStringsJsPath[] = "strings.js"; |
| |
| #if defined(OS_CHROMEOS) |
| |
| const char kKeyboardUtilsPath[] = "keyboard_utils.js"; |
| |
| // chrome://terms falls back to offline page after kOnlineTermsTimeoutSec. |
| const int kOnlineTermsTimeoutSec = 7; |
| |
| // 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_ = |
| 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. |
| ~ChromeOSOnlineTermsHandler() override {} |
| |
| // net::URLFetcherDelegate: |
| 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 download_timer_; |
| |
| // |fetch_callback_| called when fetching succeeded or failed. |
| FetchCallback fetch_callback_; |
| |
| // Helper to fetch online eula. |
| std::unique_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_CURRENTLY_ON(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 { |
| // 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_CURRENTLY_ON(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_CURRENTLY_ON(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_CURRENTLY_ON(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); |
| }; |
| |
| class ChromeOSCreditsHandler |
| : public base::RefCountedThreadSafe<ChromeOSCreditsHandler> { |
| public: |
| static void Start(const std::string& path, |
| const content::URLDataSource::GotDataCallback& callback) { |
| scoped_refptr<ChromeOSCreditsHandler> handler( |
| new ChromeOSCreditsHandler(path, callback)); |
| handler->StartOnUIThread(); |
| } |
| |
| private: |
| friend class base::RefCountedThreadSafe<ChromeOSCreditsHandler>; |
| |
| ChromeOSCreditsHandler( |
| const std::string& path, |
| const content::URLDataSource::GotDataCallback& callback) |
| : path_(path), callback_(callback) {} |
| |
| virtual ~ChromeOSCreditsHandler() {} |
| |
| void StartOnUIThread() { |
| DCHECK_CURRENTLY_ON(BrowserThread::UI); |
| if (path_ == kKeyboardUtilsPath) { |
| contents_ = ResourceBundle::GetSharedInstance() |
| .GetRawDataResource(IDR_KEYBOARD_UTILS_JS) |
| .as_string(); |
| ResponseOnUIThread(); |
| return; |
| } |
| // Load local Chrome OS credits from the disk. |
| BrowserThread::PostBlockingPoolTaskAndReply( |
| FROM_HERE, |
| base::Bind(&ChromeOSCreditsHandler::LoadCreditsFileOnBlockingPool, |
| this), |
| base::Bind(&ChromeOSCreditsHandler::ResponseOnUIThread, this)); |
| } |
| |
| void LoadCreditsFileOnBlockingPool() { |
| DCHECK(BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread()); |
| base::FilePath credits_file_path(chrome::kChromeOSCreditsPath); |
| if (!base::ReadFileToString(credits_file_path, &contents_)) { |
| // File with credits not found, ResponseOnUIThread will load credits |
| // from resources if contents_ is empty. |
| contents_.clear(); |
| } |
| } |
| |
| void ResponseOnUIThread() { |
| DCHECK_CURRENTLY_ON(BrowserThread::UI); |
| // If we fail to load Chrome OS credits from disk, load it from resources. |
| if (contents_.empty() && path_ != kKeyboardUtilsPath) { |
| contents_ = ResourceBundle::GetSharedInstance() |
| .GetRawDataResource(IDR_OS_CREDITS_HTML) |
| .as_string(); |
| } |
| callback_.Run(base::RefCountedString::TakeString(&contents_)); |
| } |
| |
| // Path in the URL. |
| const std::string path_; |
| |
| // Callback to run with the response. |
| content::URLDataSource::GotDataCallback callback_; |
| |
| // Chrome OS credits contents that was loaded from file. |
| std::string contents_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ChromeOSCreditsHandler); |
| }; |
| #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_WIN) || defined(OS_MACOSX) || defined(OS_CHROMEOS) |
| |
| const char kAboutDiscardsRunCommand[] = "run"; |
| |
| // 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 BuildAboutDiscardsRunPage() { |
| 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...")); |
| AppendFooter(&output); |
| return output; |
| } |
| |
| std::vector<std::string> GetHtmlTabDescriptorsForDiscardPage() { |
| memory::TabManager* tab_manager = g_browser_process->GetTabManager(); |
| memory::TabStatsList stats = tab_manager->GetTabStats(); |
| std::vector<std::string> titles; |
| titles.reserve(stats.size()); |
| for (memory::TabStatsList::iterator it = stats.begin(); it != stats.end(); |
| ++it) { |
| std::string str; |
| str.reserve(4096); |
| str += "<b>"; |
| str += it->is_app ? "[App] " : ""; |
| str += it->is_internal_page ? "[Internal] " : ""; |
| str += it->is_media ? "[Media] " : ""; |
| str += it->is_pinned ? "[Pinned] " : ""; |
| str += it->is_discarded ? "[Discarded] " : ""; |
| str += "</b>"; |
| str += net::EscapeForHTML(base::UTF16ToUTF8(it->title)); |
| #if defined(OS_CHROMEOS) |
| str += base::StringPrintf(" (%d) ", it->oom_score); |
| #endif |
| if (!it->is_discarded) { |
| str += base::StringPrintf(" <a href='%s%s/%" PRId64 "'>Discard</a>", |
| chrome::kChromeUIDiscardsURL, |
| kAboutDiscardsRunCommand, it->tab_contents_id); |
| } |
| str += base::StringPrintf(" (%d discards this session)", |
| it->discard_count); |
| titles.push_back(str); |
| } |
| return titles; |
| } |
| |
| std::string AboutDiscards(const std::string& path) { |
| std::string output; |
| int64_t web_content_id; |
| memory::TabManager* tab_manager = g_browser_process->GetTabManager(); |
| |
| std::vector<std::string> path_split = base::SplitString( |
| path, "/", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL); |
| if (path_split.size() == 2 && path_split[0] == kAboutDiscardsRunCommand && |
| base::StringToInt64(path_split[1], &web_content_id)) { |
| tab_manager->DiscardTabById(web_content_id); |
| return BuildAboutDiscardsRunPage(); |
| } else if (path_split.size() == 1 && |
| path_split[0] == kAboutDiscardsRunCommand) { |
| tab_manager->DiscardTab(); |
| return BuildAboutDiscardsRunPage(); |
| } |
| |
| AppendHeader(&output, 0, "About discards"); |
| AddContentSecurityPolicy(&output); |
| AppendBody(&output); |
| output.append("<h3>Discarded Tabs</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<std::string> titles = GetHtmlTabDescriptorsForDiscardPage(); |
| if (!titles.empty()) { |
| output.append("<ul>"); |
| std::vector<std::string>::iterator it = titles.begin(); |
| for ( ; it != titles.end(); ++it) { |
| output.append(WrapWithTag("li", *it)); |
| } |
| output.append("</ul>"); |
| } else { |
| output.append("<p>None found. Wait 10 seconds, then refresh.</p>"); |
| } |
| output.append(base::StringPrintf("%d discards this session. ", |
| tab_manager->discard_count())); |
| output.append(base::StringPrintf("<a href='%s%s'>Discard tab now</a>", |
| chrome::kChromeUIDiscardsURL, |
| kAboutDiscardsRunCommand)); |
| |
| 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))); |
| #if defined(OS_CHROMEOS) |
| 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(" ", " ")); |
| 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))); |
| #endif // OS_CHROMEOS |
| output.append("</table>"); |
| AppendFooter(&output); |
| return output; |
| } |
| |
| #endif // OS_WIN || 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_CURRENTLY_ON(BrowserThread::UI); |
| } |
| |
| virtual ~AboutDnsHandler() {} |
| |
| // Calls FinishOnUIThread() on completion. |
| void StartOnUIThread() { |
| DCHECK_CURRENTLY_ON(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_CURRENTLY_ON(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_CURRENTLY_ON(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); |
| }; |
| |
| #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 = base::CommandLine::ForCurrentProcess()->GetProgram(); |
| data.append(l10n_util::GetStringFUTF8( |
| IDS_ABOUT_LINUX_PROXY_CONFIG_BODY, |
| l10n_util::GetStringUTF16(IDS_PRODUCT_NAME), |
| base::ASCIIToUTF16(binary.BaseName().value()))); |
| AppendFooter(&data); |
| return data; |
| } |
| |
| void AboutSandboxRow(std::string* data, int name_id, bool good) { |
| data->append("<tr><td>"); |
| 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()->GetRendererSandboxStatus(); |
| |
| data.append("<table>"); |
| |
| AboutSandboxRow(&data, IDS_ABOUT_SANDBOX_SUID_SANDBOX, |
| status & content::kSandboxLinuxSUID); |
| AboutSandboxRow(&data, IDS_ABOUT_SANDBOX_NAMESPACE_SANDBOX, |
| status & content::kSandboxLinuxUserNS); |
| AboutSandboxRow(&data, IDS_ABOUT_SANDBOX_PID_NAMESPACES, |
| status & content::kSandboxLinuxPIDNS); |
| AboutSandboxRow(&data, IDS_ABOUT_SANDBOX_NET_NAMESPACES, |
| status & content::kSandboxLinuxNetNS); |
| AboutSandboxRow(&data, IDS_ABOUT_SANDBOX_SECCOMP_BPF_SANDBOX, |
| status & content::kSandboxLinuxSeccompBPF); |
| AboutSandboxRow(&data, IDS_ABOUT_SANDBOX_SECCOMP_BPF_SANDBOX_TSYNC, |
| status & content::kSandboxLinuxSeccompTSYNC); |
| AboutSandboxRow(&data, IDS_ABOUT_SANDBOX_YAMA_LSM, |
| status & content::kSandboxLinuxYama); |
| |
| data.append("</table>"); |
| |
| // Require either the setuid or namespace sandbox for our first-layer sandbox. |
| bool good_layer1 = (status & content::kSandboxLinuxSUID || |
| status & content::kSandboxLinuxUserNS) && |
| 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 |
| |
| } // 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_frame_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 = IDR_ABOUT_UI_CREDITS_HTML; |
| if (path == kCreditsJsPath) |
| idr = IDR_ABOUT_UI_CREDITS_JS; |
| #if defined(OS_CHROMEOS) |
| else if (path == kKeyboardUtilsPath) |
| idr = IDR_KEYBOARD_UTILS_JS; |
| #endif |
| |
| base::StringPiece raw_response = |
| ResourceBundle::GetSharedInstance().GetRawDataResource(idr); |
| if (idr == IDR_ABOUT_UI_CREDITS_HTML) { |
| size_t decoded_size; |
| const uint8_t* encoded_response_buffer = |
| reinterpret_cast<const uint8_t*>(raw_response.data()); |
| CHECK(BrotliDecompressedSize(raw_response.size(), encoded_response_buffer, |
| &decoded_size)); |
| |
| // Resizing the response and using it as the buffer Brotli decompresses |
| // into. |
| response.resize(decoded_size); |
| CHECK(BrotliDecompressBuffer(raw_response.size(), encoded_response_buffer, |
| &decoded_size, |
| reinterpret_cast<uint8_t*>(&response[0])) == |
| BROTLI_RESULT_SUCCESS); |
| } else { |
| response = raw_response.as_string(); |
| } |
| #if defined(OS_WIN) || defined(OS_MACOSX) || 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 |
| #if defined(OS_CHROMEOS) |
| } else if (source_name_ == chrome::kChromeUIOSCreditsHost) { |
| ChromeOSCreditsHandler::Start(path, callback); |
| return; |
| #endif |
| #if defined(OS_LINUX) || defined(OS_OPENBSD) |
| } else if (source_name_ == chrome::kChromeUISandboxHost) { |
| response = AboutSandbox(); |
| #endif |
| #if !defined(OS_ANDROID) |
| } else if (source_name_ == chrome::kChromeUITermsHost) { |
| #if defined(OS_CHROMEOS) |
| ChromeOSTermsHandler::Start(path, callback); |
| return; |
| #else |
| response = l10n_util::GetStringUTF8(IDS_TERMS_HTML); |
| #endif |
| #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 || |
| #if defined(OS_CHROMEOS) |
| path == kKeyboardUtilsPath || |
| #endif |
| path == kStatsJsPath || |
| path == kStringsJsPath) { |
| 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)); |
| } |