From 9ddd910d78781f29612abe32e0886284ca44f7b7 Mon Sep 17 00:00:00 2001
From: Laurent Opprecht <laurent.opprecht@unige.ch>
Date: Wed, 16 May 2012 10:11:58 +0200
Subject: [PATCH] add url validation rule for forms

---
 main/inc/lib/autoload.class.php               |  8 +++++-
 .../lib/formvalidator/FormValidator.class.php |  1 +
 main/inc/lib/formvalidator/Rule/Url.php       | 27 +++++++++++++++++++
 3 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 main/inc/lib/formvalidator/Rule/Url.php

diff --git a/main/inc/lib/autoload.class.php b/main/inc/lib/autoload.class.php
index ca33f8902b..78092c7e8a 100644
--- a/main/inc/lib/autoload.class.php
+++ b/main/inc/lib/autoload.class.php
@@ -123,6 +123,9 @@ class Autoload
         $result['FillBlanks'] = '/main/exercice/fill_blanks.class.php';
         $result['FlatViewDataGenerator'] = '/main/gradebook/lib/flatview_data_generator.class.php';
         $result['FlatViewTable'] = '/main/gradebook/lib/fe/flatviewtable.class.php';
+        $result['FormElement'] = '/main/media/lib/form_element.class.php';
+        $result['FormElementTextarea'] = '/main/media/lib/form_element_textarea.class.php';
+        $result['FormRule'] = '/main/media/lib/form_rule.class.php';
         $result['FormValidator'] = '/main/inc/lib/formvalidator/FormValidator.class.php';
         $result['Forum'] = '/main/coursecopy/classes/Forum.class.php';
         $result['ForumCategory'] = '/main/coursecopy/classes/ForumCategory.class.php';
@@ -228,6 +231,8 @@ class Autoload
         $result['Login'] = '/main/inc/lib/login.lib.php';
         $result['LoginRedirection'] = '/main/inc/lib/login_redirection.class.php';
         $result['Matching'] = '/main/exercice/matching.class.php';
+        $result['Media'] = '/main/media/model/media.class.php';
+        $result['MediaForm'] = '/main/media/lib/media_form.class.php';
         $result['MessageManager'] = '/main/inc/lib/message.lib.php';
         $result['MultipleAnswer'] = '/main/exercice/multiple_answer.class.php';
         $result['MultipleAnswerCombination'] = '/main/exercice/multiple_answer_combination.class.php';
@@ -425,6 +430,7 @@ class Autoload
         $result['xhtdoc'] = '/main/inc/lib/xht.lib.php';
         $result['xmddoc'] = '/main/inc/lib/xmd.lib.php';
 
+
         return $result;
     }
 
@@ -487,7 +493,7 @@ class AutoloadClassFinder
         $this->synch(Chamilo::path('/main'));
         ksort($this->map);
     }
-    
+
     public function __invoke()
     {
         $this->run();
diff --git a/main/inc/lib/formvalidator/FormValidator.class.php b/main/inc/lib/formvalidator/FormValidator.class.php
index 645303c41c..b59afa5329 100644
--- a/main/inc/lib/formvalidator/FormValidator.class.php
+++ b/main/inc/lib/formvalidator/FormValidator.class.php
@@ -143,6 +143,7 @@ class FormValidator extends HTML_QuickForm
         $this->registerRule('username', null, 'HTML_QuickForm_Rule_Username', $dir . 'Rule/Username.php');
         $this->registerRule('filetype', null, 'HTML_QuickForm_Rule_Filetype', $dir . 'Rule/Filetype.php');
         $this->registerRule('multiple_required', 'required', 'HTML_QuickForm_Rule_MultipleRequired', $dir . 'Rule/MultipleRequired.php');
+        $this->registerRule('url', null, 'HTML_QuickForm_Rule_Url', $dir . 'Rule/Url.php');
 
         // Modify the default templates
         $renderer = & $this->defaultRenderer();
diff --git a/main/inc/lib/formvalidator/Rule/Url.php b/main/inc/lib/formvalidator/Rule/Url.php
new file mode 100644
index 0000000000..5267aa7f07
--- /dev/null
+++ b/main/inc/lib/formvalidator/Rule/Url.php
@@ -0,0 +1,27 @@
+<?php
+
+/**
+ * Abstract base class for QuickForm validation rules
+ */
+require_once 'HTML/QuickForm/Rule.php';
+
+/**
+ * Validate urls
+ *
+ */
+class HTML_QuickForm_Rule_Url extends HTML_QuickForm_Rule
+{
+
+    /**
+     * Validates url
+     *
+     * @param string $url    
+     * @return boolean  Returns true if valid, false otherwise.
+     */
+    function validate($url)
+    {
+        return (bool) filter_var($url, FILTER_VALIDATE_URL);
+    }
+
+}
+