--- /dev/null
+<?php
+# Copyright (C) 2005 Brion Vibber <brion@pobox.com>
+# http://www.mediawiki.org/
+#
+# 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.,
+# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# http://www.gnu.org/copyleft/gpl.html
+
+/**
+ * Look for duplicate user table entries and optionally prune them.
+ */
+class UserDupes {
+ var $db;
+ var $unresolvable;
+ var $trimmed;
+
+ /**
+ * Checks the database for duplicate user account records
+ * and remove them in preparation for application of a unique
+ * index on the user_name field. Returns true if the table is
+ * clean or if duplicates have been resolved automatically.
+ *
+ * May return false if there are unresolvable problems.
+ * Status information will be echo'd to stdout.
+ *
+ * @return bool
+ */
+ function clearDupes() {
+ return $this->checkDupes( true );
+ }
+
+ /**
+ * Checks the database for duplicate user account records
+ * in preparation for application of a unique index on the
+ * user_name field. Returns true if the table is clean or
+ * if duplicates can be resolved automatically.
+ *
+ * May return false if there are unresolvable problems.
+ * Status information will be echo'd to stdout.
+ *
+ * @param bool $doDelete pass true to actually remove things
+ * from the database; false to just check.
+ * @return bool
+ */
+ function checkDupes( $doDelete=false ) {
+ global $wgDBname;
+
+ $this->db =& wfGetDB( DB_MASTER );
+ $this->lock();
+
+ echo "Checking for duplicate accounts...\n";
+ $dupes = $this->getDupes();
+ $count = count( $dupes );
+
+ echo "Found $count accounts with duplicate records on $wgDBname.\n";
+ $this->trimmed = 0;
+ $this->unresolvable = 0;
+ foreach( $dupes as $name ) {
+ $this->examine( $name, $doDelete );
+ }
+
+ $this->unlock();
+
+ if( $this->trimmed > 0 ) {
+ echo "\n";
+ if( $doDelete ) {
+ echo "$this->trimmed duplicate user records were deleted from $wgDBname.\n";
+ if( $this->unresolvable == 0 ) {
+ echo "It is now safe to apply the unique index on user_name.\n";
+ }
+ } else {
+ echo "$this->trimmed duplicate user accounts were found on $wgDBname which can be removed safely.\n";
+ echo "Run this script again with the --fix option to automatically delete them.\n";
+ }
+ }
+
+ if( $this->unresolvable > 0 ) {
+ echo "\n";
+ echo "There were $this->unresolvable unresolvable accounts on $wgDBname.\n";
+ echo "These accounts have edits credited to duplicate records,\n";
+ echo "and need to be cleaned up manually before the unique index\n";
+ echo "for user_name can be applied.\n";
+ return false;
+ } else {
+ return true;
+ }
+ }
+
+ /**
+ * We don't want anybody to mess with our stuff...
+ * @access private
+ */
+ function lock() {
+ $fname = 'UserDupes::lock';
+ global $wgVersion;
+ if( version_compare( $wgVersion, '1.5', 'gte' ) ) {
+ $set = array( 'user', 'cur', 'old' );
+ } else {
+ $set = array( 'user', 'revision' );
+ }
+ $names = array_map( array( $this, 'lockTable' ), $set );
+ $tables = implode( ',', $names );
+
+ $result = $this->db->query( "LOCK TABLES $tables", $fname );
+ }
+
+ function lockTable( $table ) {
+ return $this->db->tableName( $table ) . ' WRITE';
+ }
+
+ /**
+ * @access private
+ */
+ function unlock() {
+ $fname = 'UserDupes::unlock';
+ $result = $this->db->query( "UNLOCK TABLES", $fname );
+ }
+
+ /**
+ * Grab usernames for which multiple records are present in the database.
+ * @return array
+ * @access private
+ */
+ function getDupes() {
+ $fname = 'UserDupes::listDupes';
+ $user = $this->db->tableName( 'user' );
+ $result = $this->db->query(
+ "SELECT user_name,COUNT(*) AS n
+ FROM $user
+ GROUP BY user_name
+ HAVING n > 1", $fname );
+
+ $list = array();
+ while( $row = $this->db->fetchObject( $result ) ) {
+ $list[] = $row->user_name;
+ }
+ $this->db->freeResult( $result );
+
+ return $list;
+ }
+
+ /**
+ * Examine user records for the given name. Try to see which record
+ * will be the one that actually gets used, then check remaining records
+ * for edits. If the dupes have no edits, we can safely remove them.
+ * @param string $name
+ * @param bool $doDelete
+ * @access private
+ */
+ function examine( $name, $doDelete ) {
+ $fname = 'UserDupes::listDupes';
+ $result = $this->db->select( 'user',
+ array( 'user_id' ),
+ array( 'user_name' => $name ),
+ $fname );
+
+ $firstRow = $this->db->fetchObject( $result );
+ $firstId = $firstRow->user_id;
+ echo "Record that will be used for '$name' is user_id=$firstId\n";
+
+ while( $row = $this->db->fetchObject( $result ) ) {
+ $dupeId = $row->user_id;
+ echo "... dupe id $dupeId: ";
+ $edits = $this->editCount( $dupeId );
+ if( $edits > 0 ) {
+ $this->unresolvable++;
+ echo "has $edits edits! MANUAL INTERVENTION REQUIRED.\n";
+ continue;
+ } else {
+ $this->trimmed++;
+ echo "ok, no edits. ";
+ if( $doDelete ) {
+ $this->trimAccount( $dupeId );
+ }
+ echo "\n";
+ }
+ }
+ $this->db->freeResult( $result );
+ }
+
+ /**
+ * Count the number of edits attributed to this user.
+ * Does not currently check log table or other things
+ * where it might show up...
+ * @param int $userid
+ * @return int
+ * @access private
+ */
+ function editCount( $userid ) {
+ global $wgVersion;
+ if( version_compare( $wgVersion, '1.5alpha', 'ge' ) ) {
+ return $this->editCountOn( 'revision', 'rev_user', $userid );
+ } else {
+ return $this->editCountOn( 'cur', 'cur_user', $userid ) +
+ $this->editCountOn( 'old', 'old_user', $userid );
+ }
+ }
+
+ /**
+ * Count the number of hits on a given table for this account.
+ * @param string $table
+ * @param string $field
+ * @param int $userid
+ * @return int
+ * @access private
+ */
+ function editCountOn( $table, $field, $userid ) {
+ $fname = 'UserDupes::editCountOn';
+ return IntVal( $this->db->selectField(
+ $table,
+ 'COUNT(*)',
+ array( $field => $userid ),
+ $fname ) );
+ }
+
+ /**
+ * Remove a user account line.
+ * @param int $userid
+ * @access private
+ */
+ function trimAccount( $userid ) {
+ $fname = 'UserDupes::trimAccount';
+ echo "deleting...";
+ $this->db->delete( 'user', array( 'user_id' => $userid ), $fname );
+ echo " ok";
+ }
+
+}
+
+
+?>
\ No newline at end of file
--- /dev/null
+<?php
+# Copyright (C) 2005 Brion Vibber <brion@pobox.com>
+# http://www.mediawiki.org/
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# http://www.gnu.org/copyleft/gpl.html
+
+$options = array( 'fix' );
+
+/** */
+require_once( 'commandLine.inc' );
+require_once( 'maintenance/userDupes.inc' );
+
+$wgTitle = Title::newFromText( 'Dupe user entry cleanup script' );
+
+$fix = isset( $options['fix'] );
+$duper = new UserDupes();
+$retval = $duper->checkDupes( $fix );
+
+if( $retval ) {
+ echo "\nLooks good!\n";
+ exit( 0 );
+} else {
+ echo "\nOh noeees\n";
+ exit( -1 );
+}
+
+?>
\ No newline at end of file
dépôts / lhc / web / wiklou.git / commitdiff