luishdez · February 21, 2014 03:15 · Feb 21, 2014
diff --git a/UserProvider.php b/UserProvider.php
@@ -0,0 +1,41 @@
+class UserProvider
+{
+    /** ... */
+
+    protected function enableRememberMe($username)
+    {
+        $rememberMeValue = $this->generateRememberMeCookie($username);
+        $this->session->set('REMEMBER_ME', $rememberMeValue);
+    }
+
+    protected function generateRememberMeCookie($username)
+    {
+        $key = 'ThisTokenIsNotSoSecretChangeIt';
+        $class = 'MyCompany\Bundle\UserBundle\Entity\User';
+        $password = 'none';
+        $expires = time()+2592000;
+
+        $hash = hash('sha256', $class.$username.$expires.$password.$key);
+
+        return $this->encodeCookie(
+            array(
+                $class,
+                base64_encode($username),
+                $expires,
+                $hash
+            )
+        );
+    }
+
+    /**
+     * Encodes the cookie parts
+     *
+     * @param array $cookieParts
+     *
+     * @return string
+     */
+    protected function encodeCookie(array $cookieParts)
+    {
+        return base64_encode(implode(':', $cookieParts));
+    }
+}