26505b170a
Until now, we relied on setting MW_NO_SETUP which was a) hacky, b) irreversable, and c) likely to be forgotten if you didn't use one of the wrappers like runChild(). Instead, move the freaky magic to doMaintenance and have *it* check if it's in a specific call stack that indicates this is being run from the file scope and should be executed. Rename DO_MAINTENANCE to RUN_MAINTENANCE_IF_MAIN so it's nice and clear what magic happens behind the require_once().
84 lines
2.3 KiB
PHP
84 lines
2.3 KiB
PHP
<?php
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/**
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* Communications protocol...
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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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* @ingroup Maintenance
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*/
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require_once( dirname( __FILE__ ) . '/Maintenance.php' );
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class FetchText extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->mDescription = "Fetch the revision text from an old_id";
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}
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/*
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* returns a string containing the following in order:
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* textid
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* \n
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* length of text (-1 on error = failure to retrieve/unserialize/gunzip/etc)
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* \n
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* text (may be empty)
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*
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* note that that the text string itself is *not* followed by newline
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*/
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public function execute() {
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$db = wfGetDB( DB_SLAVE );
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$stdin = $this->getStdin();
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while ( !feof( $stdin ) ) {
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$line = fgets( $stdin );
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if ( $line === false ) {
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// We appear to have lost contact...
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break;
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}
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$textId = intval( $line );
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$text = $this->doGetText( $db, $textId );
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if ($text === false) {
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# actual error, not zero-length text
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$textLen = "-1";
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}
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else {
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$textLen = strlen($text);
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}
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$this->output( $textId . "\n" . $textLen . "\n" . $text );
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}
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}
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/**
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* May throw a database error if, say, the server dies during query.
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* @param $db Database object
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* @param $id int The old_id
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* @return String
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*/
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private function doGetText( $db, $id ) {
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$id = intval( $id );
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$row = $db->selectRow( 'text',
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array( 'old_text', 'old_flags' ),
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array( 'old_id' => $id ),
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__METHOD__ );
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$text = Revision::getRevisionText( $row );
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if ( $text === false ) {
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return false;
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}
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return $text;
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}
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}
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$maintClass = "FetchText";
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require_once( RUN_MAINTENANCE_IF_MAIN );
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