Expiration time (#62)

Expose cookie life time parameter to customize it. Default is 3600.
Minor fixes for code quality

Author: munvier

examples/ajax-broker/api.php

@@ -8,8 +8,8 @@
     header("Content-Type: application/json");
     header("HTTP/1.1 400 Bad Request");
     echo json_encode(['error' => 'Command not specified']);
-    exit();
-} 
+    return;
+}
 
 try {
     $result = $broker->{$_REQUEST['command']}();
@@ -22,7 +22,7 @@
 if (!empty($_GET['callback'])) {
     if (!isset($result)) $result = null;
     if (!isset($status)) $status = isset($result) ? 200 : 204;
-    
+
     header('Content-Type: application/javascript');
     echo $_GET['callback'] . '(' . json_encode($result) . ', ' . $status . ')';
     return;

src/Broker.php

@@ -1,8 +1,6 @@
 <?php
 namespace Jasny\SSO;
 
-use Jasny\ValidationResult;
-
 /**
  * Single sign-on broker.
  *
@@ -41,14 +39,20 @@ class Broker
      */
     protected $userinfo;
 
+    /**
+     * Cookie lifetime
+     * @var int
+     */
+    protected $cookie_lifetime;
+
     /**
      * Class constructor
      *
      * @param string $url    Url of SSO server
      * @param string $broker My identifier, given by SSO provider.
      * @param string $secret My secret word, given by SSO provider.
      */
-    public function __construct($url, $broker, $secret)
+    public function __construct($url, $broker, $secret, $cookie_lifetime = 3600)
     {
         if (!$url) throw new \InvalidArgumentException("SSO server URL not specified");
         if (!$broker) throw new \InvalidArgumentException("SSO broker id not specified");
@@ -57,6 +61,7 @@ public function __construct($url, $broker, $secret)
         $this->url = $url;
         $this->broker = $broker;
         $this->secret = $secret;
+        $this->cookie_lifetime = $cookie_lifetime;
 
         if (isset($_COOKIE[$this->getCookieName()])) $this->token = $_COOKIE[$this->getCookieName()];
     }
@@ -95,7 +100,7 @@ public function generateToken()
         if (isset($this->token)) return;
 
         $this->token = base_convert(md5(uniqid(rand(), true)), 16, 36);
-        setcookie($this->getCookieName(), $this->token, time() + 3600, '/');
+        setcookie($this->getCookieName(), $this->token, time() + $this->cookie_lifetime, '/');
     }
 
     /**

src/NotAttachedException.php

@@ -8,4 +8,4 @@
 class NotAttachedException extends Exception
 {
 
-}
+}

src/Server.php

@@ -68,9 +68,9 @@ public function startBrokerSession()
     {
         if (isset($this->brokerId)) return;
 
-        $sid =  $this->getBrokerSessionID();
+        $sid = $this->getBrokerSessionID();
 
-        if ($sid == false) {
+        if ($sid === false) {
             return $this->fail("Broker didn't send a session key", 400);
         }