X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/8f374b7233bc2815ccc387e448d208c5434eb961..7f1521bf193b382565eb753043c161f4cb3fcda7:/wp-includes/class-IXR.php

diff --git a/wp-includes/class-IXR.php b/wp-includes/class-IXR.php
index 64a60d46..5930f562 100644
--- a/wp-includes/class-IXR.php
+++ b/wp-includes/class-IXR.php
@@ -30,7 +30,7 @@
  * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * @package IXR
- * @since 1.5
+ * @since 1.5.0
  *
  * @copyright  Incutio Ltd 2010 (http://www.incutio.com)
  * @version    1.7.4 7th September 2010
@@ -43,7 +43,7 @@
  * IXR_Value
  *
  * @package IXR
- * @since 1.5
+ * @since 1.5.0
  */
 class IXR_Value {
     var $data;
@@ -151,7 +151,7 @@ class IXR_Value {
     /**
      * Checks whether or not the supplied array is a struct or not
      *
-     * @param unknown_type $array
+     * @param array $array
      * @return boolean
      */
     function isStruct($array)
@@ -171,7 +171,7 @@ class IXR_Value {
  * IXR_MESSAGE
  *
  * @package IXR
- * @since 1.5
+ * @since 1.5.0
  *
  */
 class IXR_Message
@@ -203,11 +203,44 @@ class IXR_Message
     {
         // first remove the XML declaration
         // merged from WP #10698 - this method avoids the RAM usage of preg_replace on very large messages
-        $header = preg_replace( '/<\?xml.*?\?'.'>/', '', substr($this->message, 0, 100), 1);
-        $this->message = substr_replace($this->message, $header, 0, 100);
-        if (trim($this->message) == '') {
+        $header = preg_replace( '/<\?xml.*?\?'.'>/s', '', substr( $this->message, 0, 100 ), 1 );
+        $this->message = trim( substr_replace( $this->message, $header, 0, 100 ) );
+        if ( '' == $this->message ) {
             return false;
         }
+
+        // Then remove the DOCTYPE
+        $header = preg_replace( '/^<!DOCTYPE[^>]*+>/i', '', substr( $this->message, 0, 200 ), 1 );
+        $this->message = trim( substr_replace( $this->message, $header, 0, 200 ) );
+        if ( '' == $this->message ) {
+            return false;
+        }
+
+        // Check that the root tag is valid
+        $root_tag = substr( $this->message, 0, strcspn( substr( $this->message, 0, 20 ), "> \t\r\n" ) );
+        if ( '<!DOCTYPE' === strtoupper( $root_tag ) ) {
+            return false;
+        }
+        if ( ! in_array( $root_tag, array( '<methodCall', '<methodResponse', '<fault' ) ) ) {
+            return false;
+        }
+
+        // Bail if there are too many elements to parse
+        $element_limit = 30000;
+        if ( function_exists( 'apply_filters' ) ) {
+            /**
+             * Filter the number of elements to parse in an XML-RPC response.
+             *
+             * @since 4.0.0
+             *
+             * @param int $element_limit Default elements limit.
+             */
+            $element_limit = apply_filters( 'xmlrpc_element_limit', $element_limit );
+        }
+        if ( $element_limit && 2 * $element_limit < substr_count( $this->message, '<' ) ) {
+            return false;
+        }
+
         $this->_parser = xml_parser_create();
         // Set XML parser to take the case of tags in to account
         xml_parser_set_option($this->_parser, XML_OPTION_CASE_FOLDING, false);
@@ -332,7 +365,7 @@ class IXR_Message
                     $this->_arraystructs[count($this->_arraystructs)-1][] = $value;
                 }
             } else {
-                // Just add as a paramater
+                // Just add as a parameter
                 $this->params[] = $value;
             }
         }
@@ -344,7 +377,7 @@ class IXR_Message
  * IXR_Server
  *
  * @package IXR
- * @since 1.5
+ * @since 1.5.0
  */
 class IXR_Server
 {
@@ -369,7 +402,11 @@ class IXR_Server
     {
         if (!$data) {
             if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] !== 'POST') {
-            	header('Content-Type: text/plain'); // merged from WP #9093
+                if ( function_exists( 'status_header' ) ) {
+                    status_header( 405 ); // WP #20986
+                    header( 'Allow: POST' );
+                }
+                header('Content-Type: text/plain'); // merged from WP #9093
                 die('XML-RPC server accepts POST requests only.');
             }
 
@@ -425,7 +462,7 @@ EOD;
 
         // Perform the callback and send the response
         if (count($args) == 1) {
-            // If only one paramater just send that instead of the whole array
+            // If only one parameter just send that instead of the whole array
             $args = $args[0];
         }
 
@@ -466,11 +503,18 @@ EOD;
 
     function output($xml)
     {
-        $xml = '<?xml version="1.0"?>'."\n".$xml;
+        $charset = function_exists('get_option') ? get_option('blog_charset') : '';
+        if ($charset)
+            $xml = '<?xml version="1.0" encoding="'.$charset.'"?>'."\n".$xml;
+        else
+            $xml = '<?xml version="1.0"?>'."\n".$xml;
         $length = strlen($xml);
         header('Connection: close');
         header('Content-Length: '.$length);
-        header('Content-Type: text/xml');
+        if ($charset)
+            header('Content-Type: text/xml; charset='.$charset);
+        else
+            header('Content-Type: text/xml');
         header('Date: '.date('r'));
         echo $xml;
         exit;
@@ -548,7 +592,7 @@ EOD;
  * IXR_Request
  *
  * @package IXR
- * @since 1.5
+ * @since 1.5.0
  */
 class IXR_Request
 {
@@ -591,7 +635,7 @@ EOD;
  * IXR_Client
  *
  * @package IXR
- * @since 1.5
+ * @since 1.5.0
  *
  */
 class IXR_Client
@@ -622,6 +666,10 @@ class IXR_Client
             if (!$this->path) {
                 $this->path = '/';
             }
+
+            if ( ! empty( $bits['query'] ) ) {
+                $this->path .= '?' . $bits['query'];
+            }
         } else {
             $this->server = $server;
             $this->path = $path;
@@ -743,7 +791,7 @@ class IXR_Client
  * IXR_Error
  *
  * @package IXR
- * @since 1.5
+ * @since 1.5.0
  */
 class IXR_Error
 {
@@ -785,7 +833,7 @@ EOD;
  * IXR_Date
  *
  * @package IXR
- * @since 1.5
+ * @since 1.5.0
  */
 class IXR_Date {
     var $year;
@@ -848,7 +896,7 @@ class IXR_Date {
  * IXR_Base64
  *
  * @package IXR
- * @since 1.5
+ * @since 1.5.0
  */
 class IXR_Base64
 {
@@ -869,7 +917,7 @@ class IXR_Base64
  * IXR_IntrospectionServer
  *
  * @package IXR
- * @since 1.5
+ * @since 1.5.0
  */
 class IXR_IntrospectionServer extends IXR_Server
 {
@@ -1032,7 +1080,7 @@ class IXR_IntrospectionServer extends IXR_Server
  * IXR_ClientMulticall
  *
  * @package IXR
- * @since 1.5
+ * @since 1.5.0
  */
 class IXR_ClientMulticall extends IXR_Client
 {