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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/extensions/chrome_component_extension_resource_manager.h"
#include <map>
#include <string>
#include "base/check.h"
#include "base/containers/contains.h"
#include "base/containers/span.h"
#include "base/files/file_path.h"
#include "base/path_service.h"
#include "base/values.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/grit/chrome_unscaled_resources.h"
#include "chrome/grit/component_extension_resources_map.h"
#include "chrome/grit/theme_resources.h"
#include "content/public/browser/browser_thread.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension_id.h"
#include "pdf/buildflags.h"
#include "ppapi/buildflags/buildflags.h"
#include "ui/base/resource/resource_bundle.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "ash/keyboard/ui/resources/keyboard_resource_util.h"
#include "ash/webui/file_manager/untrusted_resources/grit/file_manager_untrusted_resources_map.h"
#include "base/command_line.h"
#include "chrome/browser/ash/file_manager/file_manager_string_util.h"
#include "chrome/browser/browser_process.h"
#include "ui/file_manager/grit/file_manager_gen_resources_map.h"
#include "ui/file_manager/grit/file_manager_resources_map.h"
#if BUILDFLAG(ENABLE_INK)
#include "chromeos/grit/chromeos_media_app_bundle_resources.h"
#endif // BUILDFLAG(ENABLE_INK)
#endif // BUILDFLAG(IS_CHROMEOS)
#if BUILDFLAG(ENABLE_PDF)
#include <utility>
#include "chrome/browser/pdf/pdf_extension_util.h"
#include "chrome/grit/pdf_resources_map.h"
#endif // BUILDFLAG(ENABLE_PDF)
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_MAC)
#include "chrome/grit/tts_engine_resources_map.h"
#endif // BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_MAC)
namespace extensions {
class ChromeComponentExtensionResourceManager::Data {
public:
using TemplateReplacementMap =
std::map<ExtensionId, ui::TemplateReplacements>;
Data();
Data(const Data&) = delete;
Data& operator=(const Data&) = delete;
~Data() = default;
const std::map<base::FilePath, int>& path_to_resource_id() const {
return path_to_resource_id_;
}
const TemplateReplacementMap& template_replacements() const {
return template_replacements_;
}
private:
void AddComponentResourceEntries(
base::span<const webui::ResourcePath> entries);
// A map from a resource path to the resource ID. Used by
// ChromeComponentExtensionResourceManager::IsComponentExtensionResource().
std::map<base::FilePath, int> path_to_resource_id_;
// A map from an extension ID to its i18n template replacements.
TemplateReplacementMap template_replacements_;
};
ChromeComponentExtensionResourceManager::Data::Data() {
static const webui::ResourcePath kExtraComponentExtensionResources[] = {
#if BUILDFLAG(IS_CHROMEOS)
{"web_store/webstore_icon_128.png", IDR_WEBSTORE_APP_ICON_128},
{"web_store/webstore_icon_16.png", IDR_WEBSTORE_APP_ICON_16},
#else
{"web_store/webstore_icon_128.png", IDR_WEBSTORE_ICON},
{"web_store/webstore_icon_16.png", IDR_WEBSTORE_ICON_16},
#endif
#if BUILDFLAG(IS_CHROMEOS)
{"chrome_app/chrome_app_icon_32.png", IDR_CHROME_APP_ICON_32},
{"chrome_app/chrome_app_icon_192.png", IDR_CHROME_APP_ICON_192},
#if BUILDFLAG(ENABLE_INK)
// Built in go/bbsrc/lib/BUILD
{"pdf/ink/ink_engine_ink.wasm", IDR_MEDIA_APP_INK_ENGINE_INK_WASM},
{"pdf/ink/ink_lib_binary.js", IDR_MEDIA_APP_EXPORT_CANVAS_BIN_JS},
{"pdf/ink/ink_loader.js", IDR_MEDIA_APP_INK_JS},
#endif // BUILDFLAG(ENABLE_INK)
#endif // BUILDFLAG(IS_CHROMEOS)
};
AddComponentResourceEntries(kComponentExtensionResources);
AddComponentResourceEntries(kExtraComponentExtensionResources);
#if BUILDFLAG(IS_CHROMEOS)
// Add Files app JS modules resources.
AddComponentResourceEntries(kFileManagerResources);
AddComponentResourceEntries(kFileManagerGenResources);
// Add Files app resources to display untrusted content in <webview> frames.
// Files app extension's resource paths need to be prefixed by
// "file_manager/".
for (const auto& resource : kFileManagerUntrustedResources) {
base::FilePath resource_path =
base::FilePath("file_manager").AppendASCII(resource.path);
resource_path = resource_path.NormalizePathSeparators();
DCHECK(!base::Contains(path_to_resource_id_, resource_path));
path_to_resource_id_[resource_path] = resource.id;
}
// ResourceBundle and g_browser_process are not always initialized in unit
// tests.
if (ui::ResourceBundle::HasSharedInstance() && g_browser_process) {
// TODO(crbug.com/404131876): Remove g_browser_process usage.
const std::string& application_locale =
g_browser_process->GetApplicationLocale();
ui::TemplateReplacements file_manager_replacements;
ui::TemplateReplacementsFromDictionaryValue(
GetFileManagerStrings(application_locale), &file_manager_replacements);
template_replacements_[extension_misc::kFilesManagerAppId] =
std::move(file_manager_replacements);
}
AddComponentResourceEntries(keyboard::GetKeyboardExtensionResources());
#endif
#if BUILDFLAG(ENABLE_PDF)
AddComponentResourceEntries(kPdfResources);
// ResourceBundle is not always initialized in unit tests.
if (ui::ResourceBundle::HasSharedInstance()) {
base::Value::Dict dict;
pdf_extension_util::AddStrings(
pdf_extension_util::PdfViewerContext::kPdfViewer, &dict);
ui::TemplateReplacements pdf_viewer_replacements;
ui::TemplateReplacementsFromDictionaryValue(dict, &pdf_viewer_replacements);
template_replacements_[extension_misc::kPdfExtensionId] =
std::move(pdf_viewer_replacements);
}
#endif
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_MAC)
AddComponentResourceEntries(kTtsEngineResources);
#endif // BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_MAC)
}
void ChromeComponentExtensionResourceManager::Data::AddComponentResourceEntries(
base::span<const webui::ResourcePath> entries) {
for (const auto& entry : entries) {
base::FilePath resource_path = base::FilePath().AppendASCII(entry.path);
resource_path = resource_path.NormalizePathSeparators();
DCHECK(!base::Contains(path_to_resource_id_, resource_path));
path_to_resource_id_[resource_path] = entry.id;
}
}
ChromeComponentExtensionResourceManager::
ChromeComponentExtensionResourceManager() = default;
ChromeComponentExtensionResourceManager::
~ChromeComponentExtensionResourceManager() = default;
bool ChromeComponentExtensionResourceManager::IsComponentExtensionResource(
const base::FilePath& extension_path,
const base::FilePath& resource_path,
int* resource_id) const {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
base::FilePath directory_path = extension_path;
base::FilePath resources_dir;
base::FilePath relative_path;
if (!base::PathService::Get(chrome::DIR_RESOURCES, &resources_dir) ||
!resources_dir.AppendRelativePath(directory_path, &relative_path)) {
return false;
}
relative_path = relative_path.Append(resource_path);
relative_path = relative_path.NormalizePathSeparators();
LazyInitData();
auto entry = data_->path_to_resource_id().find(relative_path);
if (entry == data_->path_to_resource_id().end())
return false;
*resource_id = entry->second;
return true;
}
const ui::TemplateReplacements*
ChromeComponentExtensionResourceManager::GetTemplateReplacementsForExtension(
const ExtensionId& extension_id) const {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
LazyInitData();
#if BUILDFLAG(IS_CHROMEOS)
if (extension_id == extension_misc::kFilesManagerAppId) {
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
// Disable $i18n{} template JS string replacement during JS code coverage.
base::FilePath devtools_code_coverage_dir_ =
command_line->GetSwitchValuePath("devtools-code-coverage");
if (!devtools_code_coverage_dir_.empty())
return nullptr;
}
#endif
auto it = data_->template_replacements().find(extension_id);
return it != data_->template_replacements().end() ? &it->second : nullptr;
}
void ChromeComponentExtensionResourceManager::LazyInitData() const {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
if (!data_)
data_ = std::make_unique<Data>();
}
} // namespace extensions
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