1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "extensions/common/extension_l10n_util.h"
12 #include "base/file_util.h"
13 #include "base/files/file_enumerator.h"
14 #include "base/json/json_file_value_serializer.h"
15 #include "base/logging.h"
16 #include "base/memory/linked_ptr.h"
17 #include "base/strings/stringprintf.h"
18 #include "base/strings/utf_string_conversions.h"
19 #include "base/values.h"
20 #include "extensions/common/constants.h"
21 #include "extensions/common/error_utils.h"
22 #include "extensions/common/file_util.h"
23 #include "extensions/common/manifest_constants.h"
24 #include "extensions/common/message_bundle.h"
25 #include "third_party/icu/source/common/unicode/uloc.h"
26 #include "ui/base/l10n/l10n_util.h"
28 namespace errors = extensions::manifest_errors;
29 namespace keys = extensions::manifest_keys;
33 // Loads contents of the messages file for given locale. If file is not found,
34 // or there was parsing error we return NULL and set |error|.
35 // Caller owns the returned object.
36 base::DictionaryValue* LoadMessageFile(const base::FilePath& locale_path,
37 const std::string& locale,
40 locale_path.AppendASCII(locale).Append(extensions::kMessagesFilename);
41 JSONFileValueSerializer messages_serializer(file);
42 base::Value* dictionary = messages_serializer.Deserialize(NULL, error);
45 // JSONFileValueSerializer just returns NULL if file cannot be found. It
46 // doesn't set the error, so we have to do it.
47 *error = base::StringPrintf("Catalog file is missing for locale %s.",
50 *error = extensions::ErrorUtils::FormatErrorMessage(
51 errors::kLocalesInvalidLocale,
52 base::UTF16ToUTF8(file.LossyDisplayName()),
57 return static_cast<base::DictionaryValue*>(dictionary);
60 // Localizes manifest value of string type for a given key.
61 bool LocalizeManifestValue(const std::string& key,
62 const extensions::MessageBundle& messages,
63 base::DictionaryValue* manifest,
66 if (!manifest->GetString(key, &result))
69 if (!messages.ReplaceMessages(&result, error))
72 manifest->SetString(key, result);
76 // Localizes manifest value of list type for a given key.
77 bool LocalizeManifestListValue(const std::string& key,
78 const extensions::MessageBundle& messages,
79 base::DictionaryValue* manifest,
81 base::ListValue* list = NULL;
82 if (!manifest->GetList(key, &list))
86 for (size_t i = 0; i < list->GetSize(); ++i) {
88 if (list->GetString(i, &result)) {
89 if (messages.ReplaceMessages(&result, error))
90 list->Set(i, new base::StringValue(result));
98 std::string& GetProcessLocale() {
99 CR_DEFINE_STATIC_LOCAL(std::string, locale, ());
105 namespace extension_l10n_util {
107 void SetProcessLocale(const std::string& locale) {
108 GetProcessLocale() = locale;
111 std::string GetDefaultLocaleFromManifest(const base::DictionaryValue& manifest,
112 std::string* error) {
113 std::string default_locale;
114 if (manifest.GetString(keys::kDefaultLocale, &default_locale))
115 return default_locale;
117 *error = errors::kInvalidDefaultLocale;
118 return std::string();
121 bool ShouldRelocalizeManifest(const base::DictionaryValue* manifest) {
125 if (!manifest->HasKey(keys::kDefaultLocale))
128 std::string manifest_current_locale;
129 manifest->GetString(keys::kCurrentLocale, &manifest_current_locale);
130 return manifest_current_locale != CurrentLocaleOrDefault();
133 bool LocalizeManifest(const extensions::MessageBundle& messages,
134 base::DictionaryValue* manifest,
135 std::string* error) {
138 if (!manifest->GetString(keys::kName, &result)) {
139 *error = errors::kInvalidName;
142 if (!LocalizeManifestValue(keys::kName, messages, manifest, error)) {
146 // Initialize short name.
147 if (!LocalizeManifestValue(keys::kShortName, messages, manifest, error))
150 // Initialize description.
151 if (!LocalizeManifestValue(keys::kDescription, messages, manifest, error))
154 // Initialize browser_action.default_title
155 std::string key(keys::kBrowserAction);
157 key.append(keys::kPageActionDefaultTitle);
158 if (!LocalizeManifestValue(key, messages, manifest, error))
161 // Initialize page_action.default_title
162 key.assign(keys::kPageAction);
164 key.append(keys::kPageActionDefaultTitle);
165 if (!LocalizeManifestValue(key, messages, manifest, error))
168 // Initialize omnibox.keyword.
169 if (!LocalizeManifestValue(keys::kOmniboxKeyword, messages, manifest, error))
172 base::ListValue* file_handlers = NULL;
173 if (manifest->GetList(keys::kFileBrowserHandlers, &file_handlers)) {
174 key.assign(keys::kFileBrowserHandlers);
175 for (size_t i = 0; i < file_handlers->GetSize(); i++) {
176 base::DictionaryValue* handler = NULL;
177 if (!file_handlers->GetDictionary(i, &handler)) {
178 *error = errors::kInvalidFileBrowserHandler;
181 if (!LocalizeManifestValue(
182 keys::kPageActionDefaultTitle, messages, handler, error))
187 base::ListValue* media_galleries_handlers = NULL;
188 if (manifest->GetList(keys::kMediaGalleriesHandlers,
189 &media_galleries_handlers)) {
190 key.assign(keys::kMediaGalleriesHandlers);
191 for (size_t i = 0; i < media_galleries_handlers->GetSize(); i++) {
192 base::DictionaryValue* handler = NULL;
193 if (!media_galleries_handlers->GetDictionary(i, &handler)) {
194 *error = errors::kInvalidMediaGalleriesHandler;
197 if (!LocalizeManifestValue(
198 keys::kPageActionDefaultTitle, messages, handler, error))
203 // Initialize all input_components
204 base::ListValue* input_components = NULL;
205 if (manifest->GetList(keys::kInputComponents, &input_components)) {
206 for (size_t i = 0; i < input_components->GetSize(); ++i) {
207 base::DictionaryValue* module = NULL;
208 if (!input_components->GetDictionary(i, &module)) {
209 *error = errors::kInvalidInputComponents;
212 if (!LocalizeManifestValue(keys::kName, messages, module, error))
214 if (!LocalizeManifestValue(keys::kDescription, messages, module, error))
219 // Initialize app.launch.local_path.
220 if (!LocalizeManifestValue(keys::kLaunchLocalPath, messages, manifest, error))
223 // Initialize app.launch.web_url.
224 if (!LocalizeManifestValue(keys::kLaunchWebURL, messages, manifest, error))
227 // Initialize description of commmands.
228 base::DictionaryValue* commands_handler = NULL;
229 if (manifest->GetDictionary(keys::kCommands, &commands_handler)) {
230 for (base::DictionaryValue::Iterator iter(*commands_handler);
234 base::StringPrintf("commands.%s.description", iter.key().c_str()));
235 if (!LocalizeManifestValue(key, messages, manifest, error))
240 // Initialize search_provider fields.
241 base::DictionaryValue* search_provider = NULL;
242 if (manifest->GetDictionary(keys::kOverrideSearchProvider,
244 for (base::DictionaryValue::Iterator iter(*search_provider);
247 key.assign(base::StringPrintf(
248 "%s.%s", keys::kOverrideSearchProvider, iter.key().c_str()));
250 (key == keys::kSettingsOverrideAlternateUrls)
251 ? LocalizeManifestListValue(key, messages, manifest, error)
252 : LocalizeManifestValue(key, messages, manifest, error);
258 // Initialize chrome_settings_overrides.homepage.
259 if (!LocalizeManifestValue(
260 keys::kOverrideHomepage, messages, manifest, error))
263 // Initialize chrome_settings_overrides.startup_pages.
264 if (!LocalizeManifestListValue(
265 keys::kOverrideStartupPage, messages, manifest, error))
268 // Add current locale key to the manifest, so we can overwrite prefs
269 // with new manifest when chrome locale changes.
270 manifest->SetString(keys::kCurrentLocale, CurrentLocaleOrDefault());
274 bool LocalizeExtension(const base::FilePath& extension_path,
275 base::DictionaryValue* manifest,
276 std::string* error) {
279 std::string default_locale = GetDefaultLocaleFromManifest(*manifest, error);
281 scoped_ptr<extensions::MessageBundle> message_bundle(
282 extensions::file_util::LoadMessageBundle(
283 extension_path, default_locale, error));
285 if (!message_bundle.get() && !error->empty())
288 if (message_bundle.get() &&
289 !LocalizeManifest(*message_bundle, manifest, error))
295 bool AddLocale(const std::set<std::string>& chrome_locales,
296 const base::FilePath& locale_folder,
297 const std::string& locale_name,
298 std::set<std::string>* valid_locales,
299 std::string* error) {
300 // Accept name that starts with a . but don't add it to the list of supported
302 if (locale_name.find(".") == 0)
304 if (chrome_locales.find(locale_name) == chrome_locales.end()) {
305 // Warn if there is an extension locale that's not in the Chrome list,
307 DLOG(WARNING) << base::StringPrintf("Supplied locale %s is not supported.",
308 locale_name.c_str());
311 // Check if messages file is actually present (but don't check content).
312 if (base::PathExists(locale_folder.Append(extensions::kMessagesFilename))) {
313 valid_locales->insert(locale_name);
315 *error = base::StringPrintf("Catalog file is missing for locale %s.",
316 locale_name.c_str());
323 std::string CurrentLocaleOrDefault() {
324 std::string current_locale = l10n_util::NormalizeLocale(GetProcessLocale());
325 if (current_locale.empty())
326 current_locale = "en";
328 return current_locale;
331 void GetAllLocales(std::set<std::string>* all_locales) {
332 const std::vector<std::string>& available_locales =
333 l10n_util::GetAvailableLocales();
334 // Add all parents of the current locale to the available locales set.
335 // I.e. for sr_Cyrl_RS we add sr_Cyrl_RS, sr_Cyrl and sr.
336 for (size_t i = 0; i < available_locales.size(); ++i) {
337 std::vector<std::string> result;
338 l10n_util::GetParentLocales(available_locales[i], &result);
339 all_locales->insert(result.begin(), result.end());
343 void GetAllFallbackLocales(const std::string& application_locale,
344 const std::string& default_locale,
345 std::vector<std::string>* all_fallback_locales) {
346 DCHECK(all_fallback_locales);
347 if (!application_locale.empty() && application_locale != default_locale)
348 l10n_util::GetParentLocales(application_locale, all_fallback_locales);
349 all_fallback_locales->push_back(default_locale);
352 bool GetValidLocales(const base::FilePath& locale_path,
353 std::set<std::string>* valid_locales,
354 std::string* error) {
355 std::set<std::string> chrome_locales;
356 GetAllLocales(&chrome_locales);
358 // Enumerate all supplied locales in the extension.
359 base::FileEnumerator locales(
360 locale_path, false, base::FileEnumerator::DIRECTORIES);
361 base::FilePath locale_folder;
362 while (!(locale_folder = locales.Next()).empty()) {
363 std::string locale_name = locale_folder.BaseName().MaybeAsASCII();
364 if (locale_name.empty()) {
366 continue; // Not ASCII.
369 chrome_locales, locale_folder, locale_name, valid_locales, error)) {
374 if (valid_locales->empty()) {
375 *error = errors::kLocalesNoValidLocaleNamesListed;
382 extensions::MessageBundle* LoadMessageCatalogs(
383 const base::FilePath& locale_path,
384 const std::string& default_locale,
385 const std::string& application_locale,
386 const std::set<std::string>& valid_locales,
387 std::string* error) {
388 std::vector<std::string> all_fallback_locales;
389 GetAllFallbackLocales(
390 application_locale, default_locale, &all_fallback_locales);
392 std::vector<linked_ptr<base::DictionaryValue> > catalogs;
393 for (size_t i = 0; i < all_fallback_locales.size(); ++i) {
394 // Skip all parent locales that are not supplied.
395 if (valid_locales.find(all_fallback_locales[i]) == valid_locales.end())
397 linked_ptr<base::DictionaryValue> catalog(
398 LoadMessageFile(locale_path, all_fallback_locales[i], error));
399 if (!catalog.get()) {
400 // If locale is valid, but messages.json is corrupted or missing, return
404 catalogs.push_back(catalog);
408 return extensions::MessageBundle::Create(catalogs, error);
411 bool ValidateExtensionLocales(const base::FilePath& extension_path,
412 const base::DictionaryValue* manifest,
413 std::string* error) {
414 std::string default_locale = GetDefaultLocaleFromManifest(*manifest, error);
416 if (default_locale.empty())
419 base::FilePath locale_path = extension_path.Append(extensions::kLocaleFolder);
421 std::set<std::string> valid_locales;
422 if (!GetValidLocales(locale_path, &valid_locales, error))
425 for (std::set<std::string>::const_iterator locale = valid_locales.begin();
426 locale != valid_locales.end();
428 std::string locale_error;
429 scoped_ptr<base::DictionaryValue> catalog(
430 LoadMessageFile(locale_path, *locale, &locale_error));
432 if (!locale_error.empty()) {
435 error->append(locale_error);
439 return error->empty();
442 bool ShouldSkipValidation(const base::FilePath& locales_path,
443 const base::FilePath& locale_path,
444 const std::set<std::string>& all_locales) {
445 // Since we use this string as a key in a DictionaryValue, be paranoid about
446 // skipping any strings with '.'. This happens sometimes, for example with
447 // '.svn' directories.
448 base::FilePath relative_path;
449 if (!locales_path.AppendRelativePath(locale_path, &relative_path)) {
453 std::string subdir = relative_path.MaybeAsASCII();
455 return true; // Non-ASCII.
457 if (std::find(subdir.begin(), subdir.end(), '.') != subdir.end())
460 if (all_locales.find(subdir) == all_locales.end())
466 ScopedLocaleForTest::ScopedLocaleForTest()
467 : locale_(extension_l10n_util::CurrentLocaleOrDefault()) {}
469 ScopedLocaleForTest::ScopedLocaleForTest(const std::string& locale)
470 : locale_(extension_l10n_util::CurrentLocaleOrDefault()) {
471 extension_l10n_util::SetProcessLocale(locale);
474 ScopedLocaleForTest::~ScopedLocaleForTest() {
475 extension_l10n_util::SetProcessLocale(locale_);
478 } // namespace extension_l10n_util