<?php /** * wallabag, self hostable application allowing you to not miss any content anymore * * @category wallabag * @author Nicolas LÅ“uillet <nicolas@loeuillet.org> * @copyright 2013 * @license http://www.wtfpl.net/ see COPYING file */ class Tools { public static function initPhp() { define('START_TIME', microtime(true)); if (phpversion() < 5) { die(_('Oops, it seems you don\'t have PHP 5.')); } error_reporting(E_ALL); function stripslashesDeep($value) { return is_array($value) ? array_map('stripslashesDeep', $value) : stripslashes($value); } if (get_magic_quotes_gpc()) { $_POST = array_map('stripslashesDeep', $_POST); $_GET = array_map('stripslashesDeep', $_GET); $_COOKIE = array_map('stripslashesDeep', $_COOKIE); } ob_start(); register_shutdown_function('ob_end_flush'); } public static function getPocheUrl() { $https = (!empty($_SERVER['HTTPS']) && (strtolower($_SERVER['HTTPS']) == 'on')) || (isset($_SERVER["SERVER_PORT"]) && $_SERVER["SERVER_PORT"] == '443') // HTTPS detection. || (isset($_SERVER["SERVER_PORT"]) //Custom HTTPS port detection && $_SERVER["SERVER_PORT"] == SSL_PORT) || (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https'); $serverport = (!isset($_SERVER["SERVER_PORT"]) || $_SERVER["SERVER_PORT"] == '80' || ($https && $_SERVER["SERVER_PORT"] == '443') || ($https && $_SERVER["SERVER_PORT"]==SSL_PORT) //Custom HTTPS port detection ? '' : ':' . $_SERVER["SERVER_PORT"]); $scriptname = str_replace('/index.php', '/', $_SERVER["SCRIPT_NAME"]); if (!isset($_SERVER["HTTP_HOST"])) { return $scriptname; } $host = (isset($_SERVER['HTTP_X_FORWARDED_HOST']) ? $_SERVER['HTTP_X_FORWARDED_HOST'] : (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : $_SERVER['SERVER_NAME'])); return 'http' . ($https ? 's' : '') . '://' . $host . $serverport . $scriptname; } public static function redirect($url = '') { if ($url === '') { $url = (empty($_SERVER['HTTP_REFERER'])?'?':$_SERVER['HTTP_REFERER']); if (isset($_POST['returnurl'])) { $url = $_POST['returnurl']; } } # prevent loop if (empty($url) || parse_url($url, PHP_URL_QUERY) === $_SERVER['QUERY_STRING']) { $url = Tools::getPocheUrl(); } if (substr($url, 0, 1) !== '?') { $ref = Tools::getPocheUrl(); if (substr($url, 0, strlen($ref)) !== $ref) { $url = $ref; } } self::logm('redirect to ' . $url); header('Location: '.$url); exit(); } public static function getTplFile($view) { $views = array( 'install', 'import', 'export', 'config', 'tags', 'edit-tags', 'view', 'login', 'error' ); if (in_array($view, $views)) { return $view . '.twig'; } return 'home.twig'; } public static function getFile($url) { $timeout = 15; $useragent = "Mozilla/5.0 (Windows NT 5.1; rv:18.0) Gecko/20100101 Firefox/18.0"; if (in_array ('curl', get_loaded_extensions())) { # Fetch feed from URL $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_TIMEOUT, $timeout); if (!ini_get('open_basedir') && !ini_get('safe_mode')) { curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); } curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_HEADER, false); # for ssl, do not verified certificate curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($curl, CURLOPT_AUTOREFERER, TRUE ); # FeedBurner requires a proper USER-AGENT... curl_setopt($curl, CURL_HTTP_VERSION_1_1, true); curl_setopt($curl, CURLOPT_ENCODING, "gzip, deflate"); curl_setopt($curl, CURLOPT_USERAGENT, $useragent); $data = curl_exec($curl); $httpcode = curl_getinfo($curl, CURLINFO_HTTP_CODE); $httpcodeOK = isset($httpcode) and ($httpcode == 200 or $httpcode == 301); curl_close($curl); } else { # create http context and add timeout and user-agent $context = stream_context_create( array( 'http' => array( 'timeout' => $timeout, 'header' => "User-Agent: " . $useragent, 'follow_location' => true ), 'ssl' => array( 'verify_peer' => false, 'allow_self_signed' => true ) ) ); # only download page lesser than 4MB $data = @file_get_contents($url, false, $context, -1, 4000000); if (isset($http_response_header) and isset($http_response_header[0])) { $httpcodeOK = isset($http_response_header) and isset($http_response_header[0]) and ((strpos($http_response_header[0], '200 OK') !== FALSE) or (strpos($http_response_header[0], '301 Moved Permanently') !== FALSE)); } } # if response is not empty and response is OK if (isset($data) and isset($httpcodeOK) and $httpcodeOK) { # take charset of page and get it preg_match('#<meta .*charset=.*>#Usi', $data, $meta); # if meta tag is found if (!empty($meta[0])) { preg_match('#charset="?(.*)"#si', $meta[0], $encoding); # if charset is found set it otherwise, set it to utf-8 $html_charset = (!empty($encoding[1])) ? strtolower($encoding[1]) : 'utf-8'; if (empty($encoding[1])) $encoding[1] = 'utf-8'; } else { $html_charset = 'utf-8'; $encoding[1] = ''; } # replace charset of url to charset of page $data = str_replace('charset=' . $encoding[1], 'charset=' . $html_charset, $data); return $data; } else { return FALSE; } } public static function renderJson($data) { header('Cache-Control: no-cache, must-revalidate'); header('Expires: Sat, 26 Jul 1997 05:00:00 GMT'); header('Content-type: application/json; charset=UTF-8'); echo json_encode($data); exit(); } public static function logm($message) { if (DEBUG_POCHE && php_sapi_name() != 'cli') { $t = strval(date('Y/m/d_H:i:s')) . ' - ' . $_SERVER["REMOTE_ADDR"] . ' - ' . strval($message) . "\n"; file_put_contents(CACHE . '/log.txt', $t, FILE_APPEND); error_log('DEBUG POCHE : ' . $message); } } public static function encodeString($string) { return sha1($string . SALT); } public static function checkVar($var, $default = '') { return ((isset ($_REQUEST["$var"])) ? htmlentities($_REQUEST["$var"]) : $default); } public static function getDomain($url) { return parse_url($url, PHP_URL_HOST); } public static function getReadingTime($text) { $word = str_word_count(strip_tags($text)); $minutes = floor($word / 200); $seconds = floor($word % 200 / (200 / 60)); $time = array('minutes' => $minutes, 'seconds' => $seconds); return $minutes; } public static function getDocLanguage($userlanguage) { $lang = explode('.', $userlanguage); return str_replace('_', '-', $lang[0]); } public static function status($status_code) { if (strpos(php_sapi_name(), 'apache') !== false) { header('HTTP/1.0 '.$status_code); } else { header('Status: '.$status_code); } } public static function download_db() { header('Content-Disposition: attachment; filename="poche.sqlite.gz"'); self::status(200); header('Content-Transfer-Encoding: binary'); header('Content-Type: application/octet-stream'); echo gzencode(file_get_contents(STORAGE_SQLITE)); exit; } public static function getPageContent(Url $url) { // Saving and clearing context $REAL = array(); foreach( $GLOBALS as $key => $value ) { if( $key != 'GLOBALS' && $key != '_SESSION' && $key != 'HTTP_SESSION_VARS' ) { $GLOBALS[$key] = array(); $REAL[$key] = $value; } } // Saving and clearing session if ( isset($_SESSION) ) { $REAL_SESSION = array(); foreach( $_SESSION as $key => $value ) { $REAL_SESSION[$key] = $value; unset($_SESSION[$key]); } } // Running code in different context $scope = function() { extract( func_get_arg(1) ); $_GET = $_REQUEST = array( "url" => $url->getUrl(), "max" => 5, "links" => "preserve", "exc" => "", "format" => "json", "submit" => "Create Feed" ); ob_start(); require func_get_arg(0); $json = ob_get_contents(); ob_end_clean(); return $json; }; $json = $scope( "inc/3rdparty/makefulltextfeed.php", array("url" => $url) ); // Clearing and restoring context foreach( $GLOBALS as $key => $value ) { if( $key != "GLOBALS" && $key != "_SESSION" ) { unset($GLOBALS[$key]); } } foreach( $REAL as $key => $value ) { $GLOBALS[$key] = $value; } // Clearing and restoring session if ( isset($REAL_SESSION) ) { foreach( $_SESSION as $key => $value ) { unset($_SESSION[$key]); } foreach( $REAL_SESSION as $key => $value ) { $_SESSION[$key] = $value; } } return json_decode($json, true); } /** * Returns whether we handle an AJAX (XMLHttpRequest) request. * @return boolean whether we handle an AJAX (XMLHttpRequest) request. */ public static function isAjaxRequest() { return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH']==='XMLHttpRequest'; } }