Add user_image support

Added image as a property of User object populated from user_image
parameter in launch message

Author: Stephen Vickers

src/ToolProvider/ToolProvider.php

@@ -15,7 +15,7 @@
  * @author  Stephen P Vickers <svickers@imsglobal.org>
  * @copyright  IMS Global Learning Consortium Inc
  * @date  2016
- * @version  3.0.0
+ * @version  3.0.2
  * @license  GNU Lesser General Public License, version 3 (<http://www.gnu.org/licenses/lgpl.html>)
  */
 class ToolProvider
@@ -1074,6 +1074,11 @@ private function authenticate()
             $email = (isset($_POST['lis_person_contact_email_primary'])) ? $_POST['lis_person_contact_email_primary'] : '';
             $this->user->setEmail($email, $this->defaultEmail);
 
+// Set the user image URI
+            if (isset($_POST['user_image'])) {
+                $this->user->image = $_POST['user_image'];
+            }
+
 // Set the user roles
             if (isset($_POST['roles'])) {
                 $this->user->roles = self::parseRoles($_POST['roles']);

src/ToolProvider/User.php

@@ -9,7 +9,7 @@
  * @author  Stephen P Vickers <svickers@imsglobal.org>
  * @copyright  IMS Global Learning Consortium Inc
  * @date  2016
- * @version 3.0.0
+ * @version 3.0.2
  * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
  */
 class User
@@ -39,6 +39,12 @@ class User
  * @var string $email
  */
     public $email = '';
+/**
+ * User's image URI.
+ *
+ * @var string $image
+ */
+    public $image = '';
 /**
  * Roles for user.
  *
@@ -121,6 +127,7 @@ public function initialize()
         $this->lastname = '';
         $this->fullname = '';
         $this->email = '';
+        $this->image = '';
         $this->roles = array();
         $this->groups = array();
         $this->ltiResultSourcedId = null;