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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/common/manifest_handlers/default_locale_handler.h"
#include <memory>
#include "base/files/file_enumerator.h"
#include "base/files/file_util.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension_l10n_util.h"
#include "extensions/common/manifest.h"
#include "extensions/common/manifest_constants.h"
#include "extensions/strings/grit/extensions_strings.h"
#include "ui/base/l10n/l10n_util.h"
namespace extensions {
namespace keys = manifest_keys;
namespace errors = manifest_errors;
// static
const std::string& LocaleInfo::GetDefaultLocale(const Extension* extension) {
LocaleInfo* info = static_cast<LocaleInfo*>(
extension->GetManifestData(keys::kDefaultLocale));
return info ? info->default_locale : base::EmptyString();
}
DefaultLocaleHandler::DefaultLocaleHandler() = default;
DefaultLocaleHandler::~DefaultLocaleHandler() = default;
bool DefaultLocaleHandler::Parse(Extension* extension, std::u16string* error) {
std::unique_ptr<LocaleInfo> info(new LocaleInfo);
const std::string* default_locale =
extension->manifest()->FindStringPath(keys::kDefaultLocale);
if (default_locale == nullptr ||
!l10n_util::IsValidLocaleSyntax(*default_locale)) {
*error = manifest_errors::kInvalidDefaultLocale16;
return false;
}
info->default_locale = *default_locale;
extension->SetManifestData(keys::kDefaultLocale, std::move(info));
return true;
}
bool DefaultLocaleHandler::Validate(
const Extension& extension,
std::string* error,
std::vector<InstallWarning>* warnings) const {
// default_locale and _locales have to be both present or both missing.
const base::FilePath path = extension.path().Append(kLocaleFolder);
bool path_exists = base::PathExists(path);
std::string default_locale =
extensions::LocaleInfo::GetDefaultLocale(&extension);
// If both default locale and _locales folder are empty, skip verification.
if (default_locale.empty() && !path_exists) {
return true;
}
if (default_locale.empty() && path_exists) {
*error = l10n_util::GetStringUTF8(
IDS_EXTENSION_LOCALES_NO_DEFAULT_LOCALE_SPECIFIED);
return false;
} else if (!default_locale.empty() && !path_exists) {
*error = errors::kLocalesTreeMissing;
return false;
}
// Treat all folders under _locales as valid locales.
base::FileEnumerator locales(path, false, base::FileEnumerator::DIRECTORIES);
std::set<std::string> all_locales;
extension_l10n_util::GetAllLocales(&all_locales);
const base::FilePath default_locale_path = path.AppendASCII(default_locale);
bool has_default_locale_message_file = false;
bool gzipped_messages_allowed =
extension_l10n_util::GetGzippedMessagesPermissionForLocation(
extension.location()) ==
extension_l10n_util::GzippedMessagesPermission::kAllowForTrustedSource;
base::FilePath locale_path;
while (!(locale_path = locales.Next()).empty()) {
if (extension_l10n_util::ShouldSkipValidation(path, locale_path,
all_locales))
continue;
base::FilePath messages_path = locale_path.Append(kMessagesFilename);
base::FilePath gzipped_messages_path =
locale_path.Append(kGzippedMessagesFilename);
// Fail unless plain exists or (gzip allowed and gzip exists)
if (!base::PathExists(messages_path) &&
!(gzipped_messages_allowed &&
base::PathExists(gzipped_messages_path))) {
*error = base::StringPrintf(
"%s %s",
base::UTF16ToUTF8(errors::kLocalesMessagesFileMissing).c_str(),
base::UTF16ToUTF8(messages_path.LossyDisplayName()).c_str());
return false;
}
if (locale_path == default_locale_path) {
has_default_locale_message_file = true;
}
}
// Only message file for default locale has to exist.
if (!has_default_locale_message_file) {
*error = errors::kLocalesNoDefaultMessages;
return false;
}
return true;
}
bool DefaultLocaleHandler::AlwaysValidateForType(Manifest::Type type) const {
// Required to validate _locales directory; see Validate.
return true;
}
base::span<const char* const> DefaultLocaleHandler::Keys() const {
static constexpr const char* kKeys[] = {keys::kDefaultLocale};
return kKeys;
}
} // namespace extensions
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