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Use mysql_real_escape_string() only in prepare(), insert(), and update(). escape() uses addslashes only. Add array support to escape(). see #9189 

git-svn-id: https://develop.svn.wordpress.org/trunk@10604 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Ryan Boren 2009-02-20 19:05:12 +00:00
parent 999851f2cb
commit 37b231b542
1 changed files with 49 additions and 15 deletions
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64
wp-includes/wp-db.php
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@ -427,19 +427,53 @@ class wpdb {
}
}
/**
* Escapes content for insertion into the database, for security
*
* @since 0.71
*
* @param string $string
* @return string query safe string
*/
function escape($string) {
function _weak_escape($string) {
return addslashes($string);
}
function _real_escape($string) {
if ( $this->dbh && $this->real_escape )
return mysql_real_escape_string( $string, $this->dbh );
else
return addslashes( $string );
return addslashes( $string );
}
function _escape($data) {
if ( is_array($data) ) {
foreach ( (array) $data as $k => $v ) {
if ( is_array($v) )
$data[$k] = $this->_escape( $v );
else
$data[$k] = $this->_real_escape( $v );
}
} else {
$data = $this->_real_escape( $data );
}
return $data;
}
/**
* Escapes content for insertion into the database using addslashes(), for security
*
* @since 0.71
*
* @param string|array $data
* @return string query safe string
*/
function escape($data) {
if ( is_array($data) ) {
foreach ( (array) $data as $k => $v ) {
if ( is_array($v) )
$data[$k] = $this->escape( $v );
else
$data[$k] = $this->_weak_escape( $v );
}
} else {
$data = $this->_weak_escape( $data );
}
return $data;
}
/**
@ -449,8 +483,8 @@ class wpdb {
*
* @param string $s
*/
function escape_by_ref(&$s) {
$s = $this->escape($s);
function escape_by_ref(&$string) {
$string = $this->_real_escape( $string );
}
/**
@ -665,7 +699,7 @@ class wpdb {
* @return mixed Results of $this->query()
*/
function insert($table, $data) {
$data = add_magic_quotes($data);
$data = $this->_escape($data);
$fields = array_keys($data);
return $this->query("INSERT INTO $table (`" . implode('`,`',$fields) . "`) VALUES ('".implode("','",$data)."')");
}
@ -681,14 +715,14 @@ class wpdb {
* @return mixed Results of $this->query()
*/
function update($table, $data, $where){
$data = add_magic_quotes($data);
$data = $this->_escape($data);
$bits = $wheres = array();
foreach ( (array) array_keys($data) as $k )
$bits[] = "`$k` = '$data[$k]'";
if ( is_array( $where ) )
foreach ( $where as $c => $v )
$wheres[] = "$c = '" . $this->escape( $v ) . "'";
$wheres[] = "$c = '" . $this->_escape( $v ) . "'";
else
return false;