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Diffstat (limited to '')
| -rw-r--r-- | include/functions.inc.php | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/functions.inc.php b/include/functions.inc.php index 273d63776..dbcaf6a97 100644 --- a/include/functions.inc.php +++ b/include/functions.inc.php @@ -1492,4 +1492,47 @@ function get_comment_post_key($image_id) ) ); } + +/* + * breaks the script execution if the given value doesn't match the given + * pattern. This should happen only during hacking attempts. + * + * @param string param_name + * @param mixed param_value + * @param boolean is_array + * @param string pattern + * + * @return void + */ +function check_input_parameter($param_name, $param_value, $is_array, $pattern) +{ + // it's ok if the input parameter is null + if (empty($param_value)) + { + return true; + } + + if ($is_array) + { + if (!is_array($param_value)) + { + die('[Hacking attempt] the input parameter "'.$param_name.'" should be an array'); + } + + foreach ($param_value as $item_to_check) + { + if (!preg_match($pattern, $item_to_check)) + { + die('[Hacking attempt] an item is not valid in input parameter "'.$param_name.'"'); + } + } + } + else + { + if (!preg_match($pattern, $param_value)) + { + die('[Hacking attempt] the input parameter "'.$param_name.'" is not valid'); + } + } +} ?>
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