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<?php
/*
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2006 Bharat Mediratta
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Id: valchecks.php 13579 2006-05-02 09:59:13Z jenst $
*/
?>
<?php
/**
* This is a wrapper around different valchecks
* The input is the value, the type its tested against and optional a default
* The return is given by the valcheck function
*/
function sanityCheck($var, $type, $default = NULL, $choices = array()) {
switch ($type) {
case 'int':
return isValidInteger($var, true, NULL, true);
break;
case 'int_notnull':
return isValidInteger($var, true, $default, false);
break;
case 'int_empty':
return isValidInteger($var, true, $default, true);
break;
case 'pictureFrame':
if(array_key_exists($var, available_frames())) {
return array(0, $var, '');
}
else {
return array(2, $var, _("The given frame is not valid."));
}
break;
case 'inChoice':
if(in_array($var, $choices)) {
return array(0, $var, '');
}
elseif (isset($default)) {
return array(1, $default, _("Value was set to given default. Because the original value is not a in the allowed amount of choices."));
}
else {
return array(2, $var, _("The given value is not in the allowed amount of choices."));
}
break;
default:
case 'text':
return isValidText($var, $default);
break;
}
}
/**
* This function checks if a given value is a valid integer.
* Valid means:
* --- its a numeric value
* --- is not lower a given minum (can be 1 or 0)
* You can give a default to correct an invalid input
*
* Return is an array that contains:
* --- Status, can be 0 for OK, 1 for set to default, 2 failure and no default
* --- Original or default value
* --- Debug message
*/
function isValidInteger($mixed, $includingZero = false, $default = NULL, $emptyAllowed = false) {
$minimum = ($includingZero == true) ? 0 : 1;
if ( $mixed == '' && $emptyAllowed) {
return array(0, $mixed, '');
}
if (! is_numeric($mixed)) {
if (isset($default)) {
return array(1,$default, _("Value was set to given default. Because the original value is not numeric."));
} else {
return array(2, false, _("The given Value is not numeric."));
}
}
if($mixed < $minimum) {
if (isset($default)) {
return array(1, $default, _("Value was set to given default. Because the original value is not a valid Integer"));
} else {
return array(2, false, _("The given Value not a valid Integer."));
}
}
return array(0, $mixed, '');
}
function isValidText($text, $default = NULL) {
$sanitized = sanitizeInput($text);
if($sanitized != $text) {
if(isset($default)) {
return array(1, $default, _("Value was set to given default. Because the original value is not a valid text"));
}
else {
return array(1, $sanitized, _("Value was corrected, because the original value is not a valid text"));
}
}
else {
return array(0, $text, '');
}
}
function sanitizeInput($value) {
if(!is_array($value) && strip_tags($value) == $value) {
return $value;
}
require_once(dirname(dirname(__FILE__)) .'/classes/HTML_Safe/Safe.php');
static $safehtml;
if (empty($safehtml)) {
$safehtml =& new HTML_Safe();
}
if(is_array($value)) {
//echo "\n -> Array";
//echo "\n<ul>";
foreach($value as $subkey => $subvalue) {
//printf("\n<li>Checking SubValue: %s", htmlspecialchars($subkey));
$sanitized[$subkey] = sanitizeInput($subvalue);
}
//echo "\n</ul>";
}
else {
//echo " === ". htmlspecialchars($value);
$sanitized = $safehtml->parse($value);
if($sanitized != $value) {
//echo "--->". $sanitized;
}
}
return $sanitized;
}
?>
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