00001 <?php
00025 require_once( dirname(__FILE__) . '/Maintenance.php' );
00026
00027 class RemoveUnusedAccounts extends Maintenance {
00028 public function __construct() {
00029 parent::__construct();
00030 $this->addOption( 'delete', 'Actually delete the account' );
00031 $this->addOption( 'ignore-groups', 'List of comma-separated groups to exclude', false, true );
00032 $this->addOption( 'ignore-touched', 'Skip accounts touched in last N days', false, true );
00033 }
00034
00035 public function execute() {
00036
00037 $this->output( "Remove unused accounts\n\n" );
00038
00039 # Do an initial scan for inactive accounts and report the result
00040 $this->output( "Checking for unused user accounts...\n" );
00041 $del = array();
00042 $dbr = wfGetDB( DB_SLAVE );
00043 $res = $dbr->select( 'user', array( 'user_id', 'user_name', 'user_touched' ), '', __METHOD__ );
00044 if( $this->hasOption('ignore-groups') ) {
00045 $excludedGroups = explode( ',', $this->getOption('ignore-groups') );
00046 } else {
00047 $excludedGroups = array();
00048 }
00049 $touched = $this->getOption( 'ignore-touched', "1" );
00050 if( !ctype_digit( $touched ) ) {
00051 $this->error( "Please put a valid positive integer on the --ignore-touched parameter.", true );
00052 }
00053 $touchedSeconds = 86400 * $touched;
00054 foreach( $res as $row ) {
00055 # Check the account, but ignore it if it's within a $excludedGroups group or if it's touched within the $touchedSeconds seconds.
00056 $instance = User::newFromId( $row->user_id );
00057 if( count( array_intersect( $instance->getEffectiveGroups(), $excludedGroups ) ) == 0
00058 && $this->isInactiveAccount( $row->user_id, true )
00059 && wfTimestamp( TS_UNIX, $row->user_touched ) < wfTimestamp( TS_UNIX, time() - $touchedSeconds )
00060 ) {
00061 # Inactive; print out the name and flag it
00062 $del[] = $row->user_id;
00063 $this->output( $row->user_name . "\n" );
00064 }
00065 }
00066 $count = count( $del );
00067 $this->output( "...found {$count}.\n" );
00068
00069 # If required, go back and delete each marked account
00070 if( $count > 0 && $this->hasOption('delete') ) {
00071 $this->output( "\nDeleting inactive accounts..." );
00072 $dbw = wfGetDB( DB_MASTER );
00073 $dbw->delete( 'user', array( 'user_id' => $del ), __METHOD__ );
00074 $this->output( "done.\n" );
00075 # Update the site_stats.ss_users field
00076 $users = $dbw->selectField( 'user', 'COUNT(*)', array(), __METHOD__ );
00077 $dbw->update( 'site_stats', array( 'ss_users' => $users ), array( 'ss_row_id' => 1 ), __METHOD__ );
00078 } elseif( $count > 0 ) {
00079 $this->output( "\nRun the script again with --delete to remove them from the database.\n" );
00080 }
00081 $this->output( "\n" );
00082 }
00083
00092 private function isInactiveAccount( $id, $master = false ) {
00093 $dbo = wfGetDB( $master ? DB_MASTER : DB_SLAVE );
00094 $checks = array( 'revision' => 'rev', 'archive' => 'ar', 'logging' => 'log',
00095 'image' => 'img', 'oldimage' => 'oi' );
00096 $count = 0;
00097
00098 $dbo->begin();
00099 foreach( $checks as $table => $fprefix ) {
00100 $conds = array( $fprefix . '_user' => $id );
00101 $count += (int)$dbo->selectField( $table, 'COUNT(*)', $conds, __METHOD__ );
00102 }
00103 $dbo->commit();
00104
00105 return $count == 0;
00106 }
00107 }
00108
00109 $maintClass = "RemoveUnusedAccounts";
00110 require_once( DO_MAINTENANCE );