+++ /dev/null
-<?php
-/**
- * wallabag, self hostable application allowing you to not miss any content anymore
- *
- * @category wallabag
- * @author Nicolas Lœuillet <nicolas@loeuillet.org>
- * @copyright 2013
- * @license http://opensource.org/licenses/MIT see COPYING file
- */
-
-final class Tools
-{
- /**
- * Initialize PHP environment
- */
- public static function initPhp()
- {
- define('START_TIME', microtime(true));
-
- 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');
- }
-
- /**
- * Get wallabag instance URL
- *
- * @return string
- */
- 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'
- || $_SERVER["SERVER_PORT"] == HTTP_PORT
- || ($https && $_SERVER["SERVER_PORT"] == '443')
- || ($https && $_SERVER["SERVER_PORT"]==SSL_PORT) //Custom HTTPS port detection
- ? '' : ':' . $_SERVER["SERVER_PORT"]);
-
- if (isset($_SERVER["HTTP_X_FORWARDED_PORT"])) {
- $serverport = ':' . $_SERVER["HTTP_X_FORWARDED_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'] : $_SERVER['SERVER_NAME']));
-
- if (strpos($host, ':') !== false) {
- $serverport = '';
- }
-
- return 'http' . ($https ? 's' : '') . '://'
- . $host . $serverport . $scriptname;
- }
-
- /**
- * Redirects to a URL
- *
- * @param string $url
- */
- public static function redirect($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();
- }
-
- /**
- * Returns name of the template file to display
- *
- * @param $view
- * @return string
- */
- public static function getTplFile($view)
- {
- $views = array(
- 'install', 'import', 'export', 'config', 'tags',
- 'edit-tags', 'view', 'login', 'error', 'about'
- );
-
- return (in_array($view, $views) ? $view . '.twig' : 'home.twig');
- }
-
- /**
- * Download a file (typically, for downloading pictures on web server)
- *
- * @param $url
- * @return bool|mixed|string
- */
- public static function getFile($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;
- }
- }
-
- /**
- * Headers for JSON export
- *
- * @param $data
- */
- public static function renderJson($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();
- }
-
- /**
- * Create new line in log file
- *
- * @param $message
- */
- public static function logm($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);
- }
- }
-
- /**
- * Encode a URL by using a salt
- *
- * @param $string
- * @return string
- */
- public static function encodeString($string)
- {
- return sha1($string . SALT);
- }
-
- /**
- * Cleans a variable
- *
- * @param $var
- * @param string $default
- * @return string
- */
- public static function checkVar($var, $default = '')
- {
- return ((isset($_REQUEST["$var"])) ? htmlentities($_REQUEST["$var"]) : $default);
- }
-
- /**
- * Returns the domain name for a URL
- *
- * @param $url
- * @return string
- */
- public static function getDomain($url)
- {
- return parse_url($url, PHP_URL_HOST);
- }
-
- /**
- * For a given text, we calculate reading time for an article
- *
- * @param $text
- * @return float
- */
- public static function getReadingTime($text)
- {
- return floor(str_word_count(strip_tags($text)) / 200);
- }
-
- /**
- * Returns the correct header for a status code
- *
- * @param $status_code
- */
- private static function _status($status_code)
- {
- if (strpos(php_sapi_name(), 'apache') !== false) {
-
- header('HTTP/1.0 '.$status_code);
- }
- else {
-
- header('Status: '.$status_code);
- }
- }
-
- /**
- * Get the content for a given URL (by a call to FullTextFeed)
- *
- * @param Url $url
- * @return mixed
- */
- 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;
- };
-
- // Silence $scope function to avoid
- // issues with FTRSS when error_reporting is to high
- // FTRSS generates PHP warnings which break output
- $json = @$scope("vendor/wallabag/Fivefilters_Libraries/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';
- }
-
- /*
- * Empty cache folder
- */
- public static function emptyCache()
- {
- $files = new RecursiveIteratorIterator(
- new RecursiveDirectoryIterator(CACHE, RecursiveDirectoryIterator::SKIP_DOTS),
- RecursiveIteratorIterator::CHILD_FIRST
- );
-
- foreach ($files as $fileInfo) {
- $todo = ($fileInfo->isDir() ? 'rmdir' : 'unlink');
- $todo($fileInfo->getRealPath());
- }
-
- Tools::logm('empty cache');
- Tools::redirect();
- }
-
- public static function generateToken()
- {
- if (ini_get('open_basedir') === '') {
- if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
- // alternative to /dev/urandom for Windows
- $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
- } else {
- $token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
- }
- }
- else {
- $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
- }
-
- return str_replace('+', '', $token);
- }
-
-}
projects / github / wallabag / wallabag.git / blobdiff