aa21e125a3
Xhprof generates this data now. Custom profiling of various sub-function units are kept. Calls to profiler represented about 3% of page execution time on Special:BlankPage (1.5% in/out); after this change it's down to about 0.98% of page execution time. Change-Id: Id9a1dc9d8f80bbd52e42226b724a1e1213d07af7
158 lines
3.9 KiB
PHP
158 lines
3.9 KiB
PHP
<?php
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/**
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* Handle ajax requests and send them to the proper handler.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Ajax
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*/
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/**
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* @defgroup Ajax Ajax
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*/
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/**
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* Object-Oriented Ajax functions.
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* @ingroup Ajax
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*/
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class AjaxDispatcher {
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/**
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* The way the request was made, either a 'get' or a 'post'
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* @var string $mode
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*/
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private $mode;
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/**
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* Name of the requested handler
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* @var string $func_name
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*/
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private $func_name;
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/** Arguments passed
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* @var array $args
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*/
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private $args;
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/**
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* @var Config
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*/
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private $config;
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/**
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* Load up our object with user supplied data
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*/
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function __construct( Config $config ) {
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$this->config = $config;
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$this->mode = "";
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if ( !empty( $_GET["rs"] ) ) {
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$this->mode = "get";
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}
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if ( !empty( $_POST["rs"] ) ) {
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$this->mode = "post";
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}
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switch ( $this->mode ) {
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case 'get':
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$this->func_name = isset( $_GET["rs"] ) ? $_GET["rs"] : '';
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if ( !empty( $_GET["rsargs"] ) ) {
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$this->args = $_GET["rsargs"];
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} else {
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$this->args = array();
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}
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break;
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case 'post':
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$this->func_name = isset( $_POST["rs"] ) ? $_POST["rs"] : '';
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if ( !empty( $_POST["rsargs"] ) ) {
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$this->args = $_POST["rsargs"];
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} else {
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$this->args = array();
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}
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break;
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default:
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return;
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# Or we could throw an exception:
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# throw new MWException( __METHOD__ . ' called without any data (mode empty).' );
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}
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}
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/**
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* Pass the request to our internal function.
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* BEWARE! Data are passed as they have been supplied by the user,
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* they should be carefully handled in the function processing the
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* request.
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*
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* @param User $user
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*/
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function performAction( User $user ) {
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if ( empty( $this->mode ) ) {
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return;
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}
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if ( !in_array( $this->func_name, $this->config->get( 'AjaxExportList' ) ) ) {
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wfDebug( __METHOD__ . ' Bad Request for unknown function ' . $this->func_name . "\n" );
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wfHttpError(
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400,
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'Bad Request',
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"unknown function " . $this->func_name
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);
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} elseif ( !User::isEveryoneAllowed( 'read' ) && !$user->isAllowed( 'read' ) ) {
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wfHttpError(
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403,
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'Forbidden',
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'You are not allowed to view pages.' );
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} else {
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wfDebug( __METHOD__ . ' dispatching ' . $this->func_name . "\n" );
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try {
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$result = call_user_func_array( $this->func_name, $this->args );
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if ( $result === false || $result === null ) {
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wfDebug( __METHOD__ . ' ERROR while dispatching '
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. $this->func_name . "(" . var_export( $this->args, true ) . "): "
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. "no data returned\n" );
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wfHttpError( 500, 'Internal Error',
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"{$this->func_name} returned no data" );
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} else {
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if ( is_string( $result ) ) {
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$result = new AjaxResponse( $result );
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}
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$result->sendHeaders();
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$result->printText();
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wfDebug( __METHOD__ . ' dispatch complete for ' . $this->func_name . "\n" );
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}
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} catch ( Exception $e ) {
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wfDebug( __METHOD__ . ' ERROR while dispatching '
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. $this->func_name . "(" . var_export( $this->args, true ) . "): "
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. get_class( $e ) . ": " . $e->getMessage() . "\n" );
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if ( !headers_sent() ) {
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wfHttpError( 500, 'Internal Error',
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$e->getMessage() );
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} else {
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print $e->getMessage();
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}
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}
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}
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}
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}
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