1 files changed, 130 insertions, 0 deletions
diff --git a/www/wiki/maintenance/updateRestrictions.php b/www/wiki/maintenance/updateRestrictions.php
new file mode 100644
index 00000000..668ba790
--- /dev/null
+++ b/www/wiki/maintenance/updateRestrictions.php
@@ -0,0 +1,130 @@
+<?php
+/**
+ * Makes the required database updates for Special:ProtectedPages
+ * to show all protected pages, even ones before the page restrictions
+ * schema change. All remaining page_restriction column values are moved
+ * to the new table.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup Maintenance
+ */
+
+require_once __DIR__ . '/Maintenance.php';
+
+/**
+ * Maintenance script that updates page_restrictions table from
+ * old page_restriction column.
+ *
+ * @ingroup Maintenance
+ */
+class UpdateRestrictions extends Maintenance {
+	public function __construct() {
+		parent::__construct();
+		$this->addDescription( 'Updates page_restrictions table from old page_restriction column' );
+		$this->setBatchSize( 1000 );
+	}
+
+	public function execute() {
+		$db = $this->getDB( DB_MASTER );
+		$batchSize = $this->getBatchSize();
+		if ( !$db->tableExists( 'page_restrictions' ) ) {
+			$this->fatalError( "page_restrictions table does not exist" );
+		}
+
+		$start = $db->selectField( 'page', 'MIN(page_id)', '', __METHOD__ );
+		if ( !$start ) {
+			$this->fatalError( "Nothing to do." );
+		}
+		$end = $db->selectField( 'page', 'MAX(page_id)', '', __METHOD__ );
+
+		# Do remaining chunk
+		$end += $batchSize - 1;
+		$blockStart = $start;
+		$blockEnd = $start + $batchSize - 1;
+		$encodedExpiry = 'infinity';
+		while ( $blockEnd <= $end ) {
+			$this->output( "...doing page_id from $blockStart to $blockEnd out of $end\n" );
+			$cond = "page_id BETWEEN " . (int)$blockStart . " AND " . (int)$blockEnd .
+				" AND page_restrictions !=''";
+			$res = $db->select(
+				'page',
+				[ 'page_id', 'page_namespace', 'page_restrictions' ],
+				$cond,
+				__METHOD__
+			);
+			$batch = [];
+			foreach ( $res as $row ) {
+				$oldRestrictions = [];
+				foreach ( explode( ':', trim( $row->page_restrictions ) ) as $restrict ) {
+					$temp = explode( '=', trim( $restrict ) );
+					// Make sure we are not settings restrictions to ""
+					if ( count( $temp ) == 1 && $temp[0] ) {
+						// old old format should be treated as edit/move restriction
+						$oldRestrictions["edit"] = trim( $temp[0] );
+						$oldRestrictions["move"] = trim( $temp[0] );
+					} elseif ( $temp[1] ) {
+						$oldRestrictions[$temp[0]] = trim( $temp[1] );
+					}
+				}
+				# Clear invalid columns
+				if ( $row->page_namespace == NS_MEDIAWIKI ) {
+					$db->update( 'page', [ 'page_restrictions' => '' ],
+						[ 'page_id' => $row->page_id ], __FUNCTION__ );
+					$this->output( "...removed dead page_restrictions column for page {$row->page_id}\n" );
+				}
+				# Update restrictions table
+				foreach ( $oldRestrictions as $action => $restrictions ) {
+					$batch[] = [
+						'pr_page' => $row->page_id,
+						'pr_type' => $action,
+						'pr_level' => $restrictions,
+						'pr_cascade' => 0,
+						'pr_expiry' => $encodedExpiry
+					];
+				}
+			}
+			# We use insert() and not replace() as Article.php replaces
+			# page_restrictions with '' when protected in the restrictions table
+			if ( count( $batch ) ) {
+				$ok = $db->deadlockLoop( [ $db, 'insert' ], 'page_restrictions',
+					$batch, __FUNCTION__, [ 'IGNORE' ] );
+				if ( !$ok ) {
+					throw new MWException( "Deadlock loop failed wtf :(" );
+				}
+			}
+			$blockStart += $batchSize - 1;
+			$blockEnd += $batchSize - 1;
+			wfWaitForSlaves();
+		}
+		$this->output( "...removing dead rows from page_restrictions\n" );
+		// Kill any broken rows from previous imports
+		$db->delete( 'page_restrictions', [ 'pr_level' => '' ] );
+		// Kill other invalid rows
+		$db->deleteJoin(
+			'page_restrictions',
+			'page',
+			'pr_page',
+			'page_id',
+			[ 'page_namespace' => NS_MEDIAWIKI ]
+		);
+		$this->output( "...Done!\n" );
+	}
+}
+
+$maintClass = UpdateRestrictions::class;
+require_once RUN_MAINTENANCE_IF_MAIN;