From 93313d760c7e0db93f00ab2ff972b1495a8d67ae Mon Sep 17 00:00:00 2001
From: rvelices <rv-github@modusoptimus.com>
Date: Fri, 17 Oct 2008 01:06:00 +0000
Subject: - mysql potential injection paranoia + code compaction in
 common.inc.php

git-svn-id: http://piwigo.org/svn/branches/2.0@2765 68402e56-0260-453c-a942-63ccdbb3a9ee
---
 include/common.inc.php       | 61 +++++++-------------------------------------
 include/ws_functions.inc.php | 10 +++++---
 2 files changed, 15 insertions(+), 56 deletions(-)

diff --git a/include/common.inc.php b/include/common.inc.php
index cbe1d6d89..0b1a2b581 100644
--- a/include/common.inc.php
+++ b/include/common.inc.php
@@ -36,64 +36,21 @@ set_magic_quotes_runtime(0); // Disable magic_quotes_runtime
 //
 if( !get_magic_quotes_gpc() )
 {
+  function sanitize_mysql_kv(&$v, $k)
+  {
+    $v = addslashes($v);
+  }
   if( is_array( $_GET ) )
   {
-    while( list($k, $v) = each($_GET) )
-    {
-      if( is_array($_GET[$k]) )
-      {
-        while( list($k2, $v2) = each($_GET[$k]) )
-        {
-          $_GET[$k][$k2] = addslashes($v2);
-        }
-        @reset($_GET[$k]);
-      }
-      else
-      {
-        $_GET[$k] = addslashes($v);
-      }
-    }
-    @reset($_GET);
+    array_walk_recursive( $_GET, 'sanitize_mysql_kv' );
   }
-
-  if( is_array($_POST) )
+  if( is_array( $_POST ) )
   {
-    while( list($k, $v) = each($_POST) )
-    {
-      if( is_array($_POST[$k]) )
-      {
-        while( list($k2, $v2) = each($_POST[$k]) )
-        {
-          $_POST[$k][$k2] = addslashes($v2);
-        }
-        @reset($_POST[$k]);
-      }
-      else
-      {
-        $_POST[$k] = addslashes($v);
-      }
-    }
-    @reset($_POST);
+    array_walk_recursive( $_POST, 'sanitize_mysql_kv' );
   }
-
-  if( is_array($_COOKIE) )
+  if( is_array( $_COOKIE ) )
   {
-    while( list($k, $v) = each($_COOKIE) )
-    {
-      if( is_array($_COOKIE[$k]) )
-      {
-        while( list($k2, $v2) = each($_COOKIE[$k]) )
-        {
-          $_COOKIE[$k][$k2] = addslashes($v2);
-        }
-        @reset($_COOKIE[$k]);
-      }
-      else
-      {
-        $_COOKIE[$k] = addslashes($v);
-      }
-    }
-    @reset($_COOKIE);
+    array_walk_recursive( $_COOKIE, 'sanitize_mysql_kv' );
   }
 }
 if ( !empty($_SERVER["PATH_INFO"]) )
diff --git a/include/ws_functions.inc.php b/include/ws_functions.inc.php
index e4470f6c4..4bf48578a 100644
--- a/include/ws_functions.inc.php
+++ b/include/ws_functions.inc.php
@@ -187,6 +187,7 @@ function ws_caddie_add($params, &$service)
   {
     return new PwgError(401, 'Access denied');
   }
+  $params['image_id'] = array_map( 'intval',$params['image_id'] );
   if ( empty($params['image_id']) )
   {
     return new PwgError(WS_ERR_INVALID_PARAM, "Invalid image_id");
@@ -291,7 +292,7 @@ SELECT i.*, GROUP_CONCAT(category_id) cat_ids
     AND ', $where_clauses).'
 GROUP BY i.id
 '.$order_by.'
-LIMIT '.$params['per_page']*$params['page'].','.$params['per_page'];
+LIMIT '.(int)($params['per_page']*$params['page']).','.(int)$params['per_page'];
 
     $result = pwg_query($query);
     while ($row = mysql_fetch_assoc($result))
@@ -683,8 +684,8 @@ SELECT id, date, author, content
   FROM '.COMMENTS_TABLE.'
   WHERE '.$where_comments.'
   ORDER BY date
-  LIMIT '.$params['comments_per_page']*(int)$params['comments_page'].
-    ','.$params['comments_per_page'];
+  LIMIT '.(int)($params['comments_per_page']*$params['comments_page']).
+    ','.(int)$params['comments_per_page'];
 
     $result = pwg_query($query);
     while ($row = mysql_fetch_assoc($result))
@@ -857,6 +858,7 @@ function ws_images_setPrivacyLevel($params, &$service)
   {
     return new PwgError(401, 'Access denied');
   }
+  $params['image_id'] = array_map( 'intval',$params['image_id'] );
   if ( empty($params['image_id']) )
   {
     return new PwgError(WS_ERR_INVALID_PARAM, "Invalid image_id");
@@ -1262,7 +1264,7 @@ SELECT DISTINCT i.* FROM '.IMAGES_TABLE.' i
   WHERE '. implode('
     AND ', $where_clauses).'
 '.$order_by.'
-LIMIT '.$params['per_page']*$params['page'].','.$params['per_page'];
+LIMIT '.(int)($params['per_page']*$params['page']).','.(int)$params['per_page'];
 
     $result = pwg_query($query);
     while ($row = mysql_fetch_assoc($result))
-- 
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