diff --git a/src/Wallabag/CoreBundle/Controller/EntryController.php b/src/Wallabag/CoreBundle/Controller/EntryController.php
index 48d193075..c6c94462f 100644
--- a/src/Wallabag/CoreBundle/Controller/EntryController.php
+++ b/src/Wallabag/CoreBundle/Controller/EntryController.php
@@ -8,8 +8,8 @@ use Symfony\Component\HttpFoundation\Request;
 use Wallabag\CoreBundle\Repository;
 use Wallabag\CoreBundle\Entity\Entries;
 use Wallabag\CoreBundle\Service\Extractor;
-use Wallabag\Wallabag\Tools;
-use Wallabag\Wallabag\Url;
+use Wallabag\CoreBundle\Helper\Tools;
+use Wallabag\CoreBundle\Helper\Url;
 
 class EntryController extends Controller
 {
diff --git a/src/Wallabag/CoreBundle/Helper/Tools.php b/src/Wallabag/CoreBundle/Helper/Tools.php
new file mode 100755
index 000000000..c773af37d
--- /dev/null
+++ b/src/Wallabag/CoreBundle/Helper/Tools.php
@@ -0,0 +1,141 @@
+<?php
+
+namespace Wallabag\CoreBundle\Helper;
+
+use \RecursiveIteratorIterator;
+use \RecursiveDirectoryIterator;
+
+final class Tools
+{
+    /**
+     * 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;
+        }
+    }
+
+    /**
+     * Encode a URL by using a salt
+     *
+     * @param $string
+     * @return string
+     */
+    public static function encodeString($string)
+    {
+        return sha1($string . SALT);
+    }
+
+    /**
+     * 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);
+        }
+    }
+
+    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);
+    }
+
+}
diff --git a/src/Wallabag/CoreBundle/Helper/Url.php b/src/Wallabag/CoreBundle/Helper/Url.php
new file mode 100644
index 000000000..b076e7c72
--- /dev/null
+++ b/src/Wallabag/CoreBundle/Helper/Url.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Wallabag\CoreBundle\Helper;
+
+class Url
+{
+    public $url;
+
+    function __construct($url)
+    {
+        $this->url = base64_decode($url);
+    }
+
+    public function getUrl() {
+        return $this->url;
+    }
+
+    public function setUrl($url) {
+        $this->url = $url;
+    }
+
+    public function isCorrect() {
+        return filter_var($this->url, FILTER_VALIDATE_URL) !== FALSE;
+    }
+}
\ No newline at end of file
diff --git a/src/Wallabag/CoreBundle/Service/Extractor.php b/src/Wallabag/CoreBundle/Service/Extractor.php
index 790386d4e..1c6ff0ae8 100644
--- a/src/Wallabag/CoreBundle/Service/Extractor.php
+++ b/src/Wallabag/CoreBundle/Service/Extractor.php
@@ -3,7 +3,7 @@
 namespace Wallabag\CoreBundle\Service;
 
 use Wallabag\CoreBundle\Helper\Content;
-use Wallabag\Wallabag\Url;
+use Wallabag\CoreBundle\Helper\Url;
 
 final class Extractor
 {