mirror of
https://github.com/YunoHost-Apps/mediawiki_ynh.git
synced 2024-09-03 19:46:05 +02:00
112 lines
3.1 KiB
PHP
112 lines
3.1 KiB
PHP
<?php
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/**
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* Convert history stubs that point to an external row to direct external
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* pointers.
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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 Maintenance ExternalStorage
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*/
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define( 'REPORTING_INTERVAL', 100 );
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if ( !defined( 'MEDIAWIKI' ) ) {
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$optionsWithArgs = array( 'm' );
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require_once __DIR__ . '/../commandLine.inc';
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resolveStubs();
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}
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/**
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* Convert history stubs that point to an external row to direct
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* external pointers
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*/
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function resolveStubs() {
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$fname = 'resolveStubs';
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$dbr = wfGetDB( DB_SLAVE );
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$maxID = $dbr->selectField( 'text', 'MAX(old_id)', false, $fname );
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$blockSize = 10000;
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$numBlocks = intval( $maxID / $blockSize ) + 1;
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for ( $b = 0; $b < $numBlocks; $b++ ) {
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wfWaitForSlaves();
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printf( "%5.2f%%\n", $b / $numBlocks * 100 );
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$start = intval( $maxID / $numBlocks ) * $b + 1;
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$end = intval( $maxID / $numBlocks ) * ( $b + 1 );
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$res = $dbr->select( 'text', array( 'old_id', 'old_text', 'old_flags' ),
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"old_id>=$start AND old_id<=$end " .
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"AND old_flags LIKE '%object%' AND old_flags NOT LIKE '%external%' " .
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'AND LOWER(CONVERT(LEFT(old_text,22) USING latin1)) = \'o:15:"historyblobstub"\'',
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$fname );
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foreach ( $res as $row ) {
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resolveStub( $row->old_id, $row->old_text, $row->old_flags );
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}
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}
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print "100%\n";
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}
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/**
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* Resolve a history stub
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*/
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function resolveStub( $id, $stubText, $flags ) {
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$fname = 'resolveStub';
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$stub = unserialize( $stubText );
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$flags = explode( ',', $flags );
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$dbr = wfGetDB( DB_SLAVE );
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$dbw = wfGetDB( DB_MASTER );
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if ( strtolower( get_class( $stub ) ) !== 'historyblobstub' ) {
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print "Error found object of class " . get_class( $stub ) . ", expecting historyblobstub\n";
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return;
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}
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# Get the (maybe) external row
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$externalRow = $dbr->selectRow( 'text', array( 'old_text' ),
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array( 'old_id' => $stub->mOldId, 'old_flags' . $dbr->buildLike( $dbr->anyString(), 'external', $dbr->anyString() ) ),
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$fname
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);
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if ( !$externalRow ) {
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# Object wasn't external
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return;
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}
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# Preserve the legacy encoding flag, but switch from object to external
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if ( in_array( 'utf-8', $flags ) ) {
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$newFlags = 'external,utf-8';
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} else {
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$newFlags = 'external';
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}
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# Update the row
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# print "oldid=$id\n";
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$dbw->update( 'text',
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array( /* SET */
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'old_flags' => $newFlags,
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'old_text' => $externalRow->old_text . '/' . $stub->mHash
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),
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array( /* WHERE */
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'old_id' => $id
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), $fname
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);
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}
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