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<?php
/**
* Piwik - free/libre analytics platform
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*
*/
namespace Piwik\Plugins\LanguagesManager;
use Piwik\Db;
use Piwik\Development;
use Piwik\Filesystem;
use Piwik\Piwik;
use Piwik\Cache as PiwikCache;
use Piwik\Plugin\Manager as PluginManager;
use Piwik\Translation\Loader\DevelopmentLoader;
/**
* The LanguagesManager API lets you access existing Piwik translations, and change Users languages preferences.
*
* "getTranslationsForLanguage" will return all translation strings for a given language,
* so you can leverage Piwik translations in your application (and automatically benefit from the <a href='http://piwik.org/translations/' rel='noreferrer' target='_blank'>40+ translations</a>!).
* This is mostly useful to developers who integrate Piwik API results in their own application.
*
* You can also request the default language to load for a user via "getLanguageForUser",
* or update it via "setLanguageForUser".
*
* @method static \Piwik\Plugins\LanguagesManager\API getInstance()
*/
class API extends \Piwik\Plugin\API
{
protected $availableLanguageNames = null;
protected $languageNames = null;
/**
* Returns true if specified language is available
*
* @param string $languageCode
* @return bool true if language available; false otherwise
*/
public function isLanguageAvailable($languageCode)
{
return $languageCode !== false
&& Filesystem::isValidFilename($languageCode)
&& in_array($languageCode, $this->getAvailableLanguages());
}
/**
* Return array of available languages
*
* @return array Array of strings, each containing its ISO language code
*/
public function getAvailableLanguages()
{
if (!is_null($this->languageNames)) {
return $this->languageNames;
}
$path = PIWIK_INCLUDE_PATH . "/lang/";
$languagesPath = _glob($path . "*.json");
$pathLength = strlen($path);
$languages = array();
if ($languagesPath) {
foreach ($languagesPath as $language) {
$languages[] = substr($language, $pathLength, -strlen('.json'));
}
}
$this->enableDevelopmentLanguageInDevEnvironment($languages);
/**
* Hook called after loading available language files.
*
* Use this hook to customise the list of languagesPath available in Piwik.
*
* @param array
*/
Piwik::postEvent('LanguageManager.getAvailableLanguages', array(&$languages));
$this->languageNames = $languages;
return $languages;
}
/**
* Return information on translations (code, language, % translated, etc)
*
* @return array Array of arrays
*/
public function getAvailableLanguagesInfo()
{
$data = file_get_contents(PIWIK_INCLUDE_PATH . '/lang/en.json');
$englishTranslation = json_decode($data, true);
// merge with plugin translations if any
$pluginFiles = glob(sprintf('%s/plugins/*/lang/en.json', PIWIK_INCLUDE_PATH));
foreach ($pluginFiles as $file) {
$data = file_get_contents($file);
$pluginTranslations = json_decode($data, true);
$englishTranslation = array_merge_recursive($englishTranslation, $pluginTranslations);
}
$filenames = $this->getAvailableLanguages();
$languagesInfo = array();
foreach ($filenames as $filename) {
$data = file_get_contents(sprintf('%s/lang/%s.json', PIWIK_INCLUDE_PATH, $filename));
$translations = json_decode($data, true);
// merge with plugin translations if any
$pluginFiles = glob(sprintf('%s/plugins/*/lang/%s.json', PIWIK_INCLUDE_PATH, $filename));
foreach ($pluginFiles as $file) {
$data = file_get_contents($file);
$pluginTranslations = json_decode($data, true);
$translations = array_merge_recursive($translations, $pluginTranslations);
}
$intersect = function ($array, $array2) {
$res = $array;
foreach ($array as $module => $keys) {
if (!isset($array2[$module])) {
unset($res[$module]);
} else {
$res[$module] = array_intersect_key($res[$module], array_filter($array2[$module], 'strlen'));
}
}
return $res;
};
$translationStringsDone = $intersect($englishTranslation, $translations);
$percentageComplete = count($translationStringsDone, COUNT_RECURSIVE) / count($englishTranslation, COUNT_RECURSIVE);
$percentageComplete = round(100 * $percentageComplete, 0);
$languageInfo = array('code' => $filename,
'name' => $translations['Intl']['OriginalLanguageName'],
'english_name' => $translations['Intl']['EnglishLanguageName'],
'translators' => $translations['General']['TranslatorName'],
'translators_email' => $translations['General']['TranslatorEmail'],
'percentage_complete' => $percentageComplete . '%',
);
$languagesInfo[] = $languageInfo;
}
return $languagesInfo;
}
/**
* Return array of available languages
*
* @return array Arry of array, each containing its ISO language code and name of the language
*/
public function getAvailableLanguageNames()
{
$this->loadAvailableLanguages();
return $this->availableLanguageNames;
}
/**
* Returns translation strings by language
*
* @param string $languageCode ISO language code
* @return array|false Array of arrays, each containing 'label' (translation index) and 'value' (translated string); false if language unavailable
*/
public function getTranslationsForLanguage($languageCode)
{
if (!$this->isLanguageAvailable($languageCode)) {
return false;
}
$data = file_get_contents(PIWIK_INCLUDE_PATH . "/lang/$languageCode.json");
$translations = json_decode($data, true);
$languageInfo = array();
foreach ($translations as $module => $keys) {
foreach ($keys as $key => $value) {
$languageInfo[] = array(
'label' => sprintf("%s_%s", $module, $key),
'value' => $value
);
}
}
foreach (PluginManager::getInstance()->getLoadedPluginsName() as $pluginName) {
$translations = $this->getPluginTranslationsForLanguage($pluginName, $languageCode);
if (!empty($translations)) {
foreach ($translations as $keys) {
$languageInfo[] = $keys;
}
}
}
return $languageInfo;
}
/**
* Returns translation strings by language for given plugin
*
* @param string $pluginName name of plugin
* @param string $languageCode ISO language code
* @return array|false Array of arrays, each containing 'label' (translation index) and 'value' (translated string); false if language unavailable
*
* @ignore
*/
public function getPluginTranslationsForLanguage($pluginName, $languageCode)
{
if (!$this->isLanguageAvailable($languageCode)) {
return false;
}
$languageFile = PIWIK_INCLUDE_PATH . "/plugins/$pluginName/lang/$languageCode.json";
if (!file_exists($languageFile)) {
return false;
}
$data = file_get_contents($languageFile);
$translations = json_decode($data, true);
$languageInfo = array();
foreach ($translations as $module => $keys) {
foreach ($keys as $key => $value) {
$languageInfo[] = array(
'label' => sprintf("%s_%s", $module, $key),
'value' => $value
);
}
}
return $languageInfo;
}
/**
* Returns the language for the user
*
* @param string $login
* @return string
*/
public function getLanguageForUser($login)
{
if ($login == 'anonymous') {
return false;
}
Piwik::checkUserHasSuperUserAccessOrIsTheUser($login);
$lang = $this->getModel()->getLanguageForUser($login);
return $lang;
}
private function getModel()
{
return new Model();
}
/**
* Sets the language for the user
*
* @param string $login
* @param string $languageCode
* @return bool
*/
public function setLanguageForUser($login, $languageCode)
{
Piwik::checkUserHasSuperUserAccessOrIsTheUser($login);
Piwik::checkUserIsNotAnonymous();
if (!$this->isLanguageAvailable($languageCode)) {
return false;
}
$this->getModel()->setLanguageForUser($login, $languageCode);
return true;
}
private function loadAvailableLanguages()
{
if (!is_null($this->availableLanguageNames)) {
return;
}
$cacheId = 'availableLanguages';
$cache = PiwikCache::getEagerCache();
if ($cache->contains($cacheId)) {
$languagesInfo = $cache->fetch($cacheId);
} else {
$filenames = $this->getAvailableLanguages();
$languagesInfo = array();
foreach ($filenames as $filename) {
$data = file_get_contents(PIWIK_INCLUDE_PATH . "/plugins/Intl/lang/$filename.json");
$translations = json_decode($data, true);
$languagesInfo[] = array(
'code' => $filename,
'name' => $translations['Intl']['OriginalLanguageName'],
'english_name' => $translations['Intl']['EnglishLanguageName']
);
}
$cache->save($cacheId, $languagesInfo);
}
$this->availableLanguageNames = $languagesInfo;
}
private function enableDevelopmentLanguageInDevEnvironment(&$languages)
{
if (!Development::isEnabled()) {
$key = array_search(DevelopmentLoader::LANGUAGE_ID, $languages);
if ($key) {
unset($languages[$key]);
}
}
}
}
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