Implement UrlValidator

library/Icinga/Web/Form/Validator/UrlValidator.php

@@ -0,0 +1,41 @@
+<?php
+/* Icinga Web 2 | (c) 2016 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Web\Form\Validator;
+
+use Zend_Validate_Abstract;
+
+/**
+ * Validator that checks whether a textfield doesn't contain raw double quotes
+ */
+class UrlValidator extends Zend_Validate_Abstract
+{
+    /**
+     * Error templates
+     *
+     * @var array
+     *
+     * @see Zend_Validate_Abstract::$_messageTemplates
+     */
+    protected $_messageTemplates = array(
+        'HAS_QUOTES' => 'The url must not contain raw double quotes. If you really need double quotes, use %22 instead.'
+    );
+
+    /**
+     * Validate the input value
+     *
+     * @param   string  $value      The string to validate
+     *
+     * @return  bool    true if and only if the input is valid, otherwise false
+     *
+     * @see     Zend_Validate_Abstract::isValid()
+     */
+    public function isValid($value)
+    {
+        $hasQuotes = false === strpos($value, '"');
+        if (! $hasQuotes) {
+            $this->_error('HAS_QUOTES');
+        }
+        return $hasQuotes;
+    }
+}