/** * Return userdata (user ID, language) based on a signed string and an accept-language string. * @param string $signed_string JSON string, generally from a cookie, signed with an MD5 hash * @param string $accept_language_header Content of the HTTP Accept-Language request header, e.g. "en-us,en;q=0.5" * @return string Array with user ID and user language. */ function read_userdata($signed_string, $accept_language_header) { $default_language = get_preferred_language($accept_language_header); if (preg_match('/^(\\w{8})$/', $signed_string)) { // looks like an old-style user ID cookie rather than a signed string //error_log("found plain username in: {$signed_string}\n", 3, dirname(__FILE__).'/../tmp/log.txt'); return array($signed_string, $default_language); } if (preg_match('/^(.+) (\\w{32})$/', $signed_string, $m)) { list($encoded_value, $found_signature) = array($m[1], $m[2]); $expected_signature = md5($encoded_value . COOKIE_SIGNATURE); if ($expected_signature == $found_signature) { // signature checks out //error_log("found encoded userdata in: {$signed_string}\n", 3, dirname(__FILE__).'/../tmp/log.txt'); $userdata = json_decode($encoded_value, true); $language = empty($userdata['language']) ? $default_language : $userdata['language']; return array($userdata['user'], $language); } } //error_log("found no userdata in: {$signed_string}\n", 3, dirname(__FILE__).'/../tmp/log.txt'); return array(null, $default_language); }
return $code; } } return null; } /** * Get a language variable in a specific language */ function custompages_get_lang($variable) { return get_lang($variable, null, $_SESSION['user_language_choice']); } $language_file = array('courses', 'index', 'registration', 'admin', 'userInfo'); $available_langs = array('en', 'fr', 'es'); $chamilo_langs = array(null => 'english', 'en' => 'english', 'fr' => 'french', 'nl' => 'dutch', 'de' => 'german', 'es' => 'spanish'); $lang_match = $chamilo_langs[get_preferred_language($available_langs)]; // recover previous value ... if (isset($_SESSION['user_language_choice'])) { $lang_match = $_SESSION['user_language_choice']; } // Chamilo parameter, on logout if (isset($_REQUEST['language']) && !empty($_REQUEST['language']) && in_array($_REQUEST['language'], $chamilo_langs)) { $lang_match = $_REQUEST['language']; } // Incoming link parameter if (isset($_REQUEST['lang']) && !empty($_REQUEST['lang']) && in_array($_REQUEST['lang'], $available_langs)) { $lang_match = $chamilo_langs[$_REQUEST['lang']]; } global $_configuration; if (isset($_configuration['auto_detect_language_custom_pages']) && $_configuration['auto_detect_language_custom_pages'] == true) { // Auto detect