| // 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/version_handler.h" |
| |
| #include <stddef.h> |
| |
| #include "base/command_line.h" |
| #include "base/files/file_util.h" |
| #include "base/metrics/field_trial.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "base/task_scheduler/post_task.h" |
| #include "base/threading/thread_restrictions.h" |
| #include "chrome/browser/plugins/plugin_prefs.h" |
| #include "chrome/browser/profiles/profile.h" |
| #include "chrome/grit/generated_resources.h" |
| #include "components/strings/grit/components_strings.h" |
| #include "components/variations/active_field_trials.h" |
| #include "components/version_ui/version_handler_helper.h" |
| #include "components/version_ui/version_ui_constants.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "content/public/browser/plugin_service.h" |
| #include "content/public/browser/web_contents.h" |
| #include "content/public/browser/web_ui.h" |
| #include "content/public/common/content_constants.h" |
| #include "ppapi/features/features.h" |
| #include "ui/base/l10n/l10n_util.h" |
| #include "url/gurl.h" |
| |
| namespace { |
| |
| // Retrieves the executable and profile paths on the FILE thread. |
| void GetFilePaths(const base::FilePath& profile_path, |
| base::string16* exec_path_out, |
| base::string16* profile_path_out) { |
| base::AssertBlockingAllowed(); |
| |
| base::FilePath executable_path = base::MakeAbsoluteFilePath( |
| base::CommandLine::ForCurrentProcess()->GetProgram()); |
| if (!executable_path.empty()) |
| *exec_path_out = executable_path.LossyDisplayName(); |
| else |
| *exec_path_out = l10n_util::GetStringUTF16(IDS_VERSION_UI_PATH_NOTFOUND); |
| |
| base::FilePath profile_path_copy(base::MakeAbsoluteFilePath(profile_path)); |
| if (!profile_path.empty() && !profile_path_copy.empty()) |
| *profile_path_out = profile_path.LossyDisplayName(); |
| else |
| *profile_path_out = l10n_util::GetStringUTF16(IDS_VERSION_UI_PATH_NOTFOUND); |
| } |
| |
| } // namespace |
| |
| VersionHandler::VersionHandler() : weak_ptr_factory_(this) {} |
| |
| VersionHandler::~VersionHandler() { |
| } |
| |
| void VersionHandler::RegisterMessages() { |
| web_ui()->RegisterMessageCallback( |
| version_ui::kRequestVersionInfo, |
| base::BindRepeating(&VersionHandler::HandleRequestVersionInfo, |
| base::Unretained(this))); |
| } |
| |
| void VersionHandler::HandleRequestVersionInfo(const base::ListValue* args) { |
| AllowJavascript(); |
| #if BUILDFLAG(ENABLE_PLUGINS) |
| // The Flash version information is needed in the response, so make sure |
| // the plugins are loaded. |
| content::PluginService::GetInstance()->GetPlugins( |
| base::Bind(&VersionHandler::OnGotPlugins, |
| weak_ptr_factory_.GetWeakPtr())); |
| #endif |
| |
| // Grab the executable path on the FILE thread. It is returned in |
| // OnGotFilePaths. |
| base::string16* exec_path_buffer = new base::string16; |
| base::string16* profile_path_buffer = new base::string16; |
| base::PostTaskWithTraitsAndReply( |
| FROM_HERE, {base::TaskPriority::USER_VISIBLE, base::MayBlock()}, |
| base::BindOnce(&GetFilePaths, Profile::FromWebUI(web_ui())->GetPath(), |
| base::Unretained(exec_path_buffer), |
| base::Unretained(profile_path_buffer)), |
| base::BindOnce( |
| &VersionHandler::OnGotFilePaths, weak_ptr_factory_.GetWeakPtr(), |
| base::Owned(exec_path_buffer), base::Owned(profile_path_buffer))); |
| |
| // Respond with the variations info immediately. |
| CallJavascriptFunction(version_ui::kReturnVariationInfo, |
| *version_ui::GetVariationsList()); |
| GURL current_url = web_ui()->GetWebContents()->GetVisibleURL(); |
| if (current_url.query().find(version_ui::kVariationsShowCmdQuery) != |
| std::string::npos) { |
| CallJavascriptFunction(version_ui::kReturnVariationCmd, |
| version_ui::GetVariationsCommandLineAsValue()); |
| } |
| } |
| |
| void VersionHandler::OnGotFilePaths(base::string16* executable_path_data, |
| base::string16* profile_path_data) { |
| DCHECK_CURRENTLY_ON(content::BrowserThread::UI); |
| |
| base::Value exec_path(*executable_path_data); |
| base::Value profile_path(*profile_path_data); |
| CallJavascriptFunction(version_ui::kReturnFilePaths, exec_path, profile_path); |
| } |
| |
| #if BUILDFLAG(ENABLE_PLUGINS) |
| void VersionHandler::OnGotPlugins( |
| const std::vector<content::WebPluginInfo>& plugins) { |
| // Obtain the version of the first enabled Flash plugin. |
| std::vector<content::WebPluginInfo> info_array; |
| content::PluginService::GetInstance()->GetPluginInfoArray( |
| GURL(), content::kFlashPluginSwfMimeType, false, &info_array, NULL); |
| std::string flash_version_and_path = |
| l10n_util::GetStringUTF8(IDS_PLUGINS_DISABLED_PLUGIN); |
| PluginPrefs* plugin_prefs = |
| PluginPrefs::GetForProfile(Profile::FromWebUI(web_ui())).get(); |
| if (plugin_prefs) { |
| for (size_t i = 0; i < info_array.size(); ++i) { |
| if (plugin_prefs->IsPluginEnabled(info_array[i])) { |
| flash_version_and_path = base::StringPrintf( |
| "%s %s", base::UTF16ToUTF8(info_array[i].version).c_str(), |
| base::UTF16ToUTF8(info_array[i].path.LossyDisplayName()).c_str()); |
| break; |
| } |
| } |
| } |
| |
| base::Value arg(flash_version_and_path); |
| |
| CallJavascriptFunction(version_ui::kReturnFlashVersion, arg); |
| } |
| #endif // BUILDFLAG(ENABLE_PLUGINS) |