Merge pull request #109 from inthepoche/dev

merge dev into master

1 files changed, 226 insertions, 0 deletions

diff --git a/inc/poche/Tools.class.php b/inc/poche/Tools.class.php
new file mode 100644
index 00000000..d0e43166
--- /dev/null
+++ b/inc/poche/Tools.class.php
@@ -0,0 +1,226 @@
+<?php
+/**
+ * poche, a read it later open source system
+ *
+ * @category   poche
+ * @author     Nicolas Lœuillet <support@inthepoche.com>
+ * @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.
+        $serverport = (!isset($_SERVER["SERVER_PORT"])
+            || $_SERVER["SERVER_PORT"] == '80'
+            || ($https && $_SERVER["SERVER_PORT"] == '443')
+            ? '' : ':' . $_SERVER["SERVER_PORT"]);
+
+        $scriptname = str_replace('/index.php', '/', $_SERVER["SCRIPT_NAME"]);
+
+        if (!isset($_SERVER["SERVER_NAME"])) {
+            return $scriptname;
+        }
+
+        return 'http' . ($https ? 's' : '') . '://'
+            . $_SERVER["SERVER_NAME"] . $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)
+    {
+        $tpl_file = 'home.twig';
+        switch ($view)
+        {
+            case 'install':
+                $tpl_file = 'install.twig';
+                break;
+            case 'import';
+                $tpl_file = 'import.twig';
+                break;
+            case 'export':
+                $tpl_file = 'export.twig';
+                break;
+            case 'config':
+                $tpl_file = 'config.twig';
+                break;
+            case 'view':
+                $tpl_file = 'view.twig';
+                break;
+            default:
+            break;
+        }
+        return $tpl_file;
+    }
+
+    public static function getFile($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, $timeout);
+            curl_setopt($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';
+            } 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) {
+            $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)
+    {
+      $pieces = parse_url($url);
+      $domain = isset($pieces['host']) ? $pieces['host'] : '';
+      if (preg_match('/(?P<domain>[a-z0-9][a-z0-9\-]{1,63}\.[a-z\.]{2,6})$/i', $domain, $regs)) {
+        return $regs['domain'];
+      }
+      
+      return FALSE;
+    }
+}
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