1 files changed, 53 insertions, 0 deletions
diff --git a/library/Icinga/Web/Form/Validator/ReadablePathValidator.php b/library/Icinga/Web/Form/Validator/ReadablePathValidator.php
new file mode 100644
index 0000000..826421c
--- /dev/null
+++ b/library/Icinga/Web/Form/Validator/ReadablePathValidator.php
@@ -0,0 +1,53 @@
+<?php
+/* Icinga Web 2 | (c) 2014 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Web\Form\Validator;
+
+use Zend_Validate_Abstract;
+
+/**
+ * Validator that interprets the value as a filepath and checks if it's readable
+ *
+ * This validator should be preferred due to Zend_Validate_File_Exists is
+ * getting confused if there is another element in the form called `name'.
+ */
+class ReadablePathValidator extends Zend_Validate_Abstract
+{
+    const NOT_READABLE = 'notReadable';
+    const DOES_NOT_EXIST = 'doesNotExist';
+
+    /**
+     * The messages to write on different error states
+     *
+     * @var array
+     *
+     * @see Zend_Validate_Abstract::$_messageTemplates‚
+     */
+    protected $_messageTemplates = array(
+        self::NOT_READABLE      => 'Path is not readable',
+        self::DOES_NOT_EXIST    => 'Path does not exist'
+    );
+
+    /**
+     * Check whether the given value is a readable filepath
+     *
+     * @param   string  $value      The value submitted in the form
+     * @param   mixed   $context    The context of the form
+     *
+     * @return  bool                Whether the value was successfully validated
+     */
+    public function isValid($value, $context = null)
+    {
+        if (false === file_exists($value)) {
+            $this->_error(self::DOES_NOT_EXIST);
+            return false;
+        }
+
+        if (false === is_readable($value)) {
+            $this->_error(self::NOT_READABLE);
+            return false;
+        }
+
+        return true;
+    }
+}