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Bootstrap/Load: Add support for XML requests to `wp_die()`. 

In addition to AJAX, XML-RPC, JSON, and JSONP requests, `wp_die()` now handles XML requests correctly, returning information in the expected content type.

Props spacedmonkey, birgire.
Fixes #46026. See #44458.
Built from https://develop.svn.wordpress.org/trunk@45016


git-svn-id: http://core.svn.wordpress.org/trunk@44825 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2019-03-26 23:11:52 +00:00
parent 4101255505
commit 546841949f
3 changed files with 113 additions and 24 deletions
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102
wp-includes/functions.php
View File

@ -3007,9 +3007,21 @@ function wp_die( $message = '', $title = '', $args = array() ) {
* @param callable $function Callback function name.
*/
$function = apply_filters( 'wp_die_xmlrpc_handler', '_xmlrpc_wp_die_handler' );
} elseif ( wp_is_xml_request()
|| function_exists( 'is_feed' ) && is_feed()
|| function_exists( 'is_comment_feed' ) && is_comment_feed()
|| function_exists( 'is_trackback' ) && is_trackback() ) {
/**
* Filters the callback for killing WordPress execution for XML requests.
*
* @since 5.2.0
*
* @param callable $function Callback function name.
*/
$function = apply_filters( 'wp_die_xml_handler', '_xml_wp_die_handler' );
} else {
/**
* Filters the callback for killing WordPress execution for all non-Ajax, non-XML-RPC requests.
* Filters the callback for killing WordPress execution for all non-Ajax, non-JSON, non-XML requests.
*
* @since 3.0.0
*
@ -3218,6 +3230,48 @@ function _default_wp_die_handler( $message, $title = '', $args = array() ) {
}
}
/**
* Kills WordPress execution and displays Ajax response with an error message.
*
* This is the handler for wp_die() when processing Ajax requests.
*
* @since 3.4.0
* @access private
*
* @param string $message Error message.
* @param string $title Optional. Error title (unused). Default empty.
* @param string|array $args Optional. Arguments to control behavior. Default empty array.
*/
function _ajax_wp_die_handler( $message, $title = '', $args = array() ) {
// Set default 'response' to 200 for AJAX requests.
$args = wp_parse_args(
$args,
array( 'response' => 200 )
);
list( $message, $title, $r ) = _wp_die_process_input( $message, $title, $args );
if ( ! headers_sent() ) {
// This is intentional. For backward-compatibility, support passing null here.
if ( null !== $args['response'] ) {
status_header( $r['response'] );
}
nocache_headers();
}
if ( is_scalar( $message ) ) {
$message = (string) $message;
} else {
$message = '0';
}
if ( $r['exit'] ) {
die( $message );
}
echo $message;
}
/**
* Kills WordPress execution and displays JSON response with an error message.
*
@ -3331,45 +3385,47 @@ function _xmlrpc_wp_die_handler( $message, $title = '', $args = array() ) {
}
/**
* Kills WordPress execution and displays Ajax response with an error message.
* Kill WordPress execution and display XML message with error message.
*
* This is the handler for wp_die() when processing Ajax requests.
* This is the handler for wp_die when processing XML requests.
*
* @since 3.4.0
* @since 5.2.0
* @access private
*
* @param string $message Error message.
* @param string $title Optional. Error title (unused). Default empty.
* @param string $title Optional. Error title. Default empty.
* @param string|array $args Optional. Arguments to control behavior. Default empty array.
*/
function _ajax_wp_die_handler( $message, $title = '', $args = array() ) {
// Set default 'response' to 200 for AJAX requests.
$args = wp_parse_args(
$args,
array( 'response' => 200 )
);
function _xml_wp_die_handler( $message, $title = '', $args = array() ) {
list( $message, $title, $r ) = _wp_die_process_input( $message, $title, $args );
$message = htmlspecialchars( $message );
$title = htmlspecialchars( $title );
$xml = <<<EOD
<error>
<code>{$r['code']}</code>
<title><![CDATA[{$title}]]></title>
<message><![CDATA[{$message}]]></message>
<data>
<status>{$r['response']}</status>
</data>
</error>
EOD;
if ( ! headers_sent() ) {
// This is intentional. For backward-compatibility, support passing null here.
if ( null !== $args['response'] ) {
header( 'Content-Type: text/xml; charset=utf-8' );
if ( null !== $r['response'] ) {
status_header( $r['response'] );
}
nocache_headers();
}
if ( is_scalar( $message ) ) {
$message = (string) $message;
} else {
$message = '0';
}
echo $xml;
if ( $r['exit'] ) {
die( $message );
die();
}
echo $message;
}
/**

33
wp-includes/load.php
View File

@ -1529,3 +1529,36 @@ function wp_is_jsonp_request() {
return $jsonp_enabled;
}
/**
*
* Checks whether current request is a XML request, or is expecting a XML response.
*
* @since 5.2.0
*
* @return bool True if Accepts or Content-Type headers contain xml, false otherwise.
*/
function wp_is_xml_request() {
$accepted = array(
'text/xml',
'application/rss+xml',
'application/atom+xml',
'application/rdf+xml',
'text/xml+oembed',
'application/xml+oembed',
);
if ( isset( $_SERVER['HTTP_ACCEPT'] ) ) {
foreach ( $accepted as $type ) {
if ( false !== strpos( $_SERVER['HTTP_ACCEPT'], $type ) ) {
return true;
}
}
}
if ( isset( $_SERVER['CONTENT_TYPE'] ) && in_array( $_SERVER['CONTENT_TYPE'], $accepted, true ) ) {
return true;
}
return false;
}

2
wp-includes/version.php
View File

@ -13,7 +13,7 @@
*
* @global string $wp_version
*/
$wp_version = '5.2-alpha-45015';
$wp_version = '5.2-alpha-45016';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.