maintenance/updaters.inc

   1 <?php
   2 /**
   3  * @addtogroup Maintenance
   4  */
   5
   6  /** */
   7
   8 if ( !defined( 'MEDIAWIKI' ) ) {
   9         echo "This file is not a valid entry point\n";
  10         exit( 1 );
  11 }
  12
  13 require_once 'convertLinks.inc';
  14 require_once 'userDupes.inc';
  15 require_once 'deleteDefaultMessages.php';
  16
  17 $wgRenamedTables = array(
  18 #           from             to                  patch file
  19 #       array( 'group',         'groups',           'patch-rename-group.sql' ),
  20 );
  21
  22 $wgNewTables = array(
  23 #            table          patch file (in maintenance/archives)
  24         array( 'hitcounter',    'patch-hitcounter.sql' ),
  25         array( 'querycache',    'patch-querycache.sql' ),
  26         array( 'objectcache',   'patch-objectcache.sql' ),
  27         array( 'categorylinks', 'patch-categorylinks.sql' ),
  28         array( 'logging',       'patch-logging.sql' ),
  29         array( 'user_newtalk',  'patch-usernewtalk2.sql' ),
  30         array( 'transcache',    'patch-transcache.sql' ),
  31         array( 'trackbacks',    'patch-trackbacks.sql' ),
  32         array( 'externallinks', 'patch-externallinks.sql' ),
  33         array( 'job',           'patch-job.sql' ),
  34         array( 'langlinks',     'patch-langlinks.sql' ),
  35         array( 'querycache_info', 'patch-querycacheinfo.sql' ),
  36         array( 'filearchive',   'patch-filearchive.sql' ),
  37         array( 'querycachetwo', 'patch-querycachetwo.sql' ),
  38 );
  39
  40 $wgNewFields = array(
  41 #           table            field             patch file (in maintenance/archives)
  42         array( 'ipblocks',      'ipb_id',           'patch-ipblocks.sql' ),
  43         array( 'ipblocks',      'ipb_expiry',       'patch-ipb_expiry.sql' ),
  44         array( 'recentchanges', 'rc_type',          'patch-rc_type.sql' ),
  45         array( 'recentchanges', 'rc_ip',            'patch-rc_ip.sql' ),
  46         array( 'recentchanges', 'rc_id',            'patch-rc_id.sql' ),
  47         array( 'recentchanges', 'rc_patrolled',     'patch-rc-patrol.sql' ),
  48         array( 'recentchanges', 'rc_old_len',       'patch-rc_len.sql' ),
  49         array( 'user',          'user_real_name',   'patch-user-realname.sql' ),
  50         array( 'user',          'user_token',       'patch-user_token.sql' ),
  51         array( 'user',          'user_email_token', 'patch-user_email_token.sql' ),
  52         array( 'user',          'user_registration','patch-user_registration.sql' ),
  53         array( 'logging',       'log_params',       'patch-log_params.sql' ),
  54         array( 'archive',       'ar_rev_id',        'patch-archive-rev_id.sql' ),
  55         array( 'archive',       'ar_text_id',       'patch-archive-text_id.sql' ),
  56         array( 'page',          'page_len',         'patch-page_len.sql' ),
  57         array( 'revision',      'rev_deleted',      'patch-rev_deleted.sql' ),
  58         array( 'image',         'img_width',        'patch-img_width.sql' ),
  59         array( 'image',         'img_metadata',     'patch-img_metadata.sql' ),
  60         array( 'image',         'img_media_type',   'patch-img_media_type.sql' ),
  61         array( 'site_stats',    'ss_total_pages',   'patch-ss_total_articles.sql' ),
  62         array( 'interwiki',     'iw_trans',         'patch-interwiki-trans.sql' ),
  63         array( 'ipblocks',      'ipb_range_start',  'patch-ipb_range_start.sql' ),
  64         array( 'site_stats',    'ss_images',        'patch-ss_images.sql' ),
  65         array( 'ipblocks',      'ipb_anon_only',    'patch-ipb_anon_only.sql' ),
  66         array( 'ipblocks',              'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ),
  67         array( 'user',          'user_newpass_time','patch-user_newpass_time.sql' ),
  68         array( 'user',          'user_editcount',   'patch-user_editcount.sql' ),
  69         array( 'recentchanges', 'rc_deleted',           'patch-rc_deleted.sql' ),
  70         array( 'logging',               'log_id',                       'patch-log_id.sql' ),
  71         array( 'logging',               'log_deleted',          'patch-log_deleted.sql' ),
  72         array( 'archive',               'ar_deleted',           'patch-ar_deleted.sql' ),
  73         array( 'ipblocks',              'ipb_deleted',          'patch-ipb_deleted.sql' ),
  74         array( 'filearchive',   'fa_deleted',           'patch-fa_deleted.sql' ),
  75         array( 'revision',          'rev_len',          'patch-rev_len.sql' ),
  76         array( 'archive',           'ar_len',           'patch-ar_len.sql' ),
  77         array( 'revision',          'rev_parent_id',    'patch-rev_parent_id.sql' ),
  78         array( 'page_restrictions', 'pr_id',            'patch-page_restrictions_sortkey.sql' ),
  79 );
  80
  81 function rename_table( $from, $to, $patch ) {
  82         global $wgDatabase;
  83         if ( $wgDatabase->tableExists( $from ) ) {
  84                 if ( $wgDatabase->tableExists( $to ) ) {
  85                         echo "...can't move table $from to $to, $to already exists.\n";
  86                 } else {
  87                         echo "Moving table $from to $to...";
  88                         dbsource( archive($patch), $wgDatabase );
  89                         echo "ok\n";
  90                 }
  91         } else {
  92                 // Source table does not exist
  93                 // Renames are done before creations, so this is typical for a new installation
  94                 // Ignore silently
  95         }
  96 }
  97
  98 function add_table( $name, $patch ) {
  99         global $wgDatabase;
 100         if ( $wgDatabase->tableExists( $name ) ) {
 101                 echo "...$name table already exists.\n";
 102         } else {
 103                 echo "Creating $name table...";
 104                 dbsource( archive($patch), $wgDatabase );
 105                 echo "ok\n";
 106         }
 107 }
 108
 109 function add_field( $table, $field, $patch ) {
 110         global $wgDatabase;
 111         if ( !$wgDatabase->tableExists( $table ) ) {
 112                 echo "...$table table does not exist, skipping new field patch\n";
 113         } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
 114                 echo "...have $field field in $table table.\n";
 115         } else {
 116                 echo "Adding $field field to table $table...";
 117                 dbsource( archive($patch) , $wgDatabase );
 118                 echo "ok\n";
 119         }
 120 }
 121
 122 function do_revision_updates() {
 123         global $wgSoftwareRevision;
 124         if ( $wgSoftwareRevision < 1001 ) {
 125                 update_passwords();
 126         }
 127 }
 128
 129 function update_passwords() {
 130         wfDebugDieBacktrace( "This function needs to be updated or removed.\n" );
 131
 132         global $wgDatabase;
 133         $fname = "Update script: update_passwords()";
 134         print "\nIt appears that you need to update the user passwords in your\n" .
 135           "database. If you have already done this (if you've run this update\n" .
 136           "script once before, for example), doing so again will make all your\n" .
 137           "user accounts inaccessible, so be sure you only do this once.\n" .
 138           "Update user passwords? (yes/no)";
 139
 140         $resp = readconsole();
 141     if ( ! ( "Y" == $resp{0} || "y" == $resp{0} ) ) { return; }
 142
 143         $sql = "SELECT user_id,user_password FROM user";
 144         $source = $wgDatabase->query( $sql, $fname );
 145
 146         while ( $row = $wgDatabase->fetchObject( $source ) ) {
 147                 $id = $row->user_id;
 148                 $oldpass = $row->user_password;
 149                 $newpass = md5( "{$id}-{$oldpass}" );
 150
 151                 $sql = "UPDATE user SET user_password='{$newpass}' " .
 152                   "WHERE user_id={$id}";
 153                 $wgDatabase->query( $sql, $fname );
 154         }
 155 }
 156
 157 function do_interwiki_update() {
 158         # Check that interwiki table exists; if it doesn't source it
 159         global $wgDatabase, $IP;
 160         if( $wgDatabase->tableExists( "interwiki" ) ) {
 161                 echo "...already have interwiki table\n";
 162                 return true;
 163         }
 164         echo "Creating interwiki table: ";
 165         dbsource( archive("patch-interwiki.sql") );
 166         echo "ok\n";
 167         echo "Adding default interwiki definitions: ";
 168         dbsource( "$IP/maintenance/interwiki.sql" );
 169         echo "ok\n";
 170 }
 171
 172 function do_index_update() {
 173         # Check that proper indexes are in place
 174         global $wgDatabase;
 175         $meta = $wgDatabase->fieldInfo( "recentchanges", "rc_timestamp" );
 176         if( $meta->multiple_key == 0 ) {
 177                 echo "Updating indexes to 20031107: ";
 178                 dbsource( archive("patch-indexes.sql") );
 179                 echo "ok\n";
 180                 return true;
 181         }
 182         echo "...indexes seem up to 20031107 standards\n";
 183         return false;
 184 }
 185
 186 function do_image_index_update() {
 187         global $wgDatabase;
 188
 189         $meta = $wgDatabase->fieldInfo( "image", "img_major_mime" );
 190         if( $meta->multiple_key == 0 ) {
 191                 echo "Updating indexes to 20050912: ";
 192                 dbsource( archive("patch-mimesearch-indexes.sql") );
 193                 echo "ok\n";
 194                 return true;
 195         }
 196         echo "...indexes seem up to 20050912 standards\n";
 197         return false;
 198 }
 199
 200 function do_image_name_unique_update() {
 201         global $wgDatabase;
 202         if( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
 203                 echo "...image primary key already set.\n";
 204         } else {
 205                 echo "Making img_name the primary key... ";
 206                 dbsource( archive("patch-image_name_primary.sql"), $wgDatabase );
 207                 echo "ok\n";
 208         }
 209 }
 210
 211 function do_logging_timestamp_index() {
 212         global $wgDatabase;
 213         if( $wgDatabase->indexExists( 'logging', 'times' ) ) {
 214                 echo "...timestamp key on logging already exists.\n";
 215         } else {
 216                 echo "Adding timestamp key on logging table... ";
 217                 dbsource( archive("patch-logging-times-index.sql"), $wgDatabase );
 218                 echo "ok\n";
 219         }
 220 }
 221
 222
 223 function do_watchlist_update() {
 224         global $wgDatabase;
 225         $fname = 'do_watchlist_update';
 226         if( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
 227                 echo "The watchlist table is already set up for email notification.\n";
 228         } else {
 229                 echo "Adding wl_notificationtimestamp field for email notification management.";
 230                 /* ALTER TABLE watchlist ADD (wl_notificationtimestamp varchar(14) binary NOT NULL default '0'); */
 231                 dbsource( archive( 'patch-email-notification.sql' ), $wgDatabase );
 232                 echo "ok\n";
 233         }
 234         # Check if we need to add talk page rows to the watchlist
 235         $talk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', $fname );
 236         $nontalk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', $fname );
 237         if ( $talk != $nontalk ) {
 238                 echo "Adding missing watchlist talk page rows... ";
 239                 flush();
 240
 241                 $wgDatabase->insertSelect( 'watchlist', 'watchlist',
 242                         array(
 243                                 'wl_user' => 'wl_user',
 244                                 'wl_namespace' => 'wl_namespace | 1',
 245                                 'wl_title' => 'wl_title',
 246                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 247                         ), array( 'NOT (wl_namespace & 1)' ), $fname, 'IGNORE' );
 248                 echo "ok\n";
 249         } else {
 250                 echo "...watchlist talk page rows already present\n";
 251         }
 252 }
 253
 254 function do_copy_newtalk_to_watchlist() {
 255         global $wgDatabase;
 256         global $wgCommandLineMode;      # this needs to be saved while getID() and getName() are called
 257
 258         $res = $wgDatabase->safeQuery( 'SELECT user_id, user_ip FROM !',
 259                 $wgDatabase->tableName( 'user_newtalk' ) );
 260         $num_newtalks=$wgDatabase->numRows($res);
 261         echo "Now converting ".$num_newtalks." user_newtalk entries to watchlist table entries ... \n";
 262
 263         $user = new User();
 264         for ( $i = 1; $i <= $num_newtalks; $i++ ) {
 265                 $wluser = $wgDatabase->fetchObject( $res );
 266                 if ($wluser->user_id == 0) { # anonymous users ... have IP numbers as "names"
 267                         if ($user->isIP($wluser->user_ip)) { # do only if it really looks like an IP number (double checked)
 268                                 $wgDatabase->replace( 'watchlist',
 269                                         array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 270                                           array('wl_user'                       => 0,
 271                                                 'wl_namespace'                  => NS_USER_TALK,
 272                                                 'wl_title'                      => $wluser->user_ip,
 273                                                 'wl_notificationtimestamp'      => '19700101000000'
 274                                                 ), 'updaters.inc::do_watchlist_update2'
 275                                         );
 276                         }
 277                 } else { # normal users ... have user_ids
 278                         $user->setID($wluser->user_id);
 279                         $wgDatabase->replace( 'watchlist',
 280                                 array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 281                                   array('wl_user'                       => $user->getID(),
 282                                         'wl_namespace'                  => NS_USER_TALK,
 283                                         'wl_title'                      => $user->getName(),
 284                                         'wl_notificationtimestamp'      => '19700101000000'
 285                                         ), 'updaters.inc::do_watchlist_update3'
 286                                 );
 287                 }
 288         }
 289         echo "Done.\n";
 290 }
 291
 292
 293 function do_user_update() {
 294         global $wgDatabase;
 295         if( $wgDatabase->fieldExists( 'user', 'user_emailauthenticationtimestamp' ) ) {
 296                 echo "User table contains old email authentication field. Dropping... ";
 297                 dbsource( archive( 'patch-email-authentication.sql' ), $wgDatabase );
 298                 echo "ok\n";
 299         } else {
 300                 echo "...user table does not contain old email authentication field.\n";
 301         }
 302 }
 303
 304 /**
 305  * 1.4 betas were missing the 'binary' marker from logging.log_title,
 306  * which causes a collation mismatch error on joins in MySQL 4.1.
 307  */
 308 function do_logging_encoding() {
 309         global $wgDatabase, $wgDBtype;
 310         if ($wgDBtype != 'mysql')
 311                 return;
 312         $logging = $wgDatabase->tableName( 'logging' );
 313         $res = $wgDatabase->query( "SELECT log_title FROM $logging LIMIT 0" );
 314         $flags = explode( ' ', mysql_field_flags( $res, 0 ) );
 315         $wgDatabase->freeResult( $res );
 316
 317         if( in_array( 'binary', $flags ) ) {
 318                 echo "Logging table has correct title encoding.\n";
 319         } else {
 320                 echo "Fixing title encoding on logging table... ";
 321                 dbsource( archive( 'patch-logging-title.sql' ), $wgDatabase );
 322                 echo "ok\n";
 323         }
 324 }
 325
 326 function do_schema_restructuring() {
 327         global $wgDatabase;
 328         $fname="do_schema_restructuring";
 329         if ( $wgDatabase->tableExists( 'page' ) ) {
 330                 echo "...page table already exists.\n";
 331         } else {
 332                 echo "...converting from cur/old to page/revision/text DB structure.\n"; flush();
 333                 echo wfTimestamp( TS_DB );
 334                 echo "......checking for duplicate entries.\n"; flush();
 335
 336                 list ($cur, $old, $page, $revision, $text) = $wgDatabase->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 337
 338                 $rows = $wgDatabase->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 339                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", $fname );
 340
 341                 if ( $wgDatabase->numRows( $rows ) > 0 ) {
 342                         echo wfTimestamp( TS_DB );
 343                         echo "......<b>Found duplicate entries</b>\n";
 344                         echo ( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 345                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 346                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 347                                         $duplicate[$row->cur_namespace] = array();
 348                                 }
 349                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 350                                 echo ( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 351                         }
 352                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 353                         $firstCond = true;
 354                         foreach ( $duplicate as $ns => $titles ) {
 355                                 if ( $firstCond ) {
 356                                         $firstCond = false;
 357                                 } else {
 358                                         $sql .= ' OR ';
 359                                 }
 360                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 361                                 $first = true;
 362                                 foreach ( $titles as $t ) {
 363                                         if ( $first ) {
 364                                                 $sql .= $wgDatabase->addQuotes( $t );
 365                                                 $first = false;
 366                                         } else {
 367                                                 $sql .= ', ' . $wgDatabase->addQuotes( $t );
 368                                         }
 369                                 }
 370                                 $sql .= ") ) \n";
 371                         }
 372                         # By sorting descending, the most recent entry will be the first in the list.
 373                         # All following entries will be deleted by the next while-loop.
 374                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 375
 376                         $rows = $wgDatabase->query( $sql, $fname );
 377
 378                         $prev_title = $prev_namespace = false;
 379                         $deleteId = array();
 380
 381                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 382                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 383                                         $deleteId[] = $row->cur_id;
 384                                 }
 385                                 $prev_title     = $row->cur_title;
 386                                 $prev_namespace = $row->cur_namespace;
 387                         }
 388                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 389                         $rows = $wgDatabase->query( $sql, $fname );
 390                         echo wfTimestamp( TS_DB );
 391                         echo "......<b>Deleted</b> ".$wgDatabase->affectedRows()." records.\n";
 392                 }
 393
 394
 395                 echo wfTimestamp( TS_DB );
 396                 echo "......Creating tables.\n";
 397                 $wgDatabase->query("CREATE TABLE $page (
 398                         page_id int(8) unsigned NOT NULL auto_increment,
 399                         page_namespace int NOT NULL,
 400                         page_title varchar(255) binary NOT NULL,
 401                         page_restrictions tinyblob NOT NULL,
 402                         page_counter bigint(20) unsigned NOT NULL default '0',
 403                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 404                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 405                         page_random real unsigned NOT NULL,
 406                         page_touched char(14) binary NOT NULL default '',
 407                         page_latest int(8) unsigned NOT NULL,
 408                         page_len int(8) unsigned NOT NULL,
 409
 410                         PRIMARY KEY page_id (page_id),
 411                         UNIQUE INDEX name_title (page_namespace,page_title),
 412                         INDEX (page_random),
 413                         INDEX (page_len)
 414                         ) TYPE=InnoDB", $fname );
 415                 $wgDatabase->query("CREATE TABLE $revision (
 416                         rev_id int(8) unsigned NOT NULL auto_increment,
 417                         rev_page int(8) unsigned NOT NULL,
 418                         rev_comment tinyblob NOT NULL,
 419                         rev_user int(5) unsigned NOT NULL default '0',
 420                         rev_user_text varchar(255) binary NOT NULL default '',
 421                         rev_timestamp char(14) binary NOT NULL default '',
 422                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 423                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 424                         rev_parent_id int(8) unsigned default NULL,
 425                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 426                         UNIQUE INDEX rev_id (rev_id),
 427                         INDEX rev_timestamp (rev_timestamp),
 428                         INDEX page_timestamp (rev_page,rev_timestamp),
 429                         INDEX user_timestamp (rev_user,rev_timestamp),
 430                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 431                         ) TYPE=InnoDB", $fname );
 432
 433                 echo wfTimestamp( TS_DB );
 434                 echo "......Locking tables.\n";
 435                 $wgDatabase->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", $fname );
 436
 437                 $maxold = intval( $wgDatabase->selectField( 'old', 'max(old_id)', '', $fname ) );
 438                 echo wfTimestamp( TS_DB );
 439                 echo "......maxold is {$maxold}\n";
 440
 441                 echo wfTimestamp( TS_DB );
 442                 global $wgLegacySchemaConversion;
 443                 if( $wgLegacySchemaConversion ) {
 444                         // Create HistoryBlobCurStub entries.
 445                         // Text will be pulled from the leftover 'cur' table at runtime.
 446                         echo "......Moving metadata from cur; using blob references to text in cur table.\n";
 447                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 448                         $cur_flags = "'object'";
 449                 } else {
 450                         // Copy all cur text in immediately: this may take longer but avoids
 451                         // having to keep an extra table around.
 452                         echo "......Moving text from cur.\n";
 453                         $cur_text = 'cur_text';
 454                         $cur_flags = "''";
 455                 }
 456                 $wgDatabase->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 457                                 old_timestamp, old_minor_edit, old_flags)
 458                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 459                         FROM $cur", $fname );
 460
 461                 echo wfTimestamp( TS_DB );
 462                 echo "......Setting up revision table.\n";
 463                 $wgDatabase->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 464                                 rev_minor_edit)
 465                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 466                                 old_timestamp, old_minor_edit
 467                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", $fname );
 468
 469                 echo wfTimestamp( TS_DB );
 470                 echo "......Setting up page table.\n";
 471                 $wgDatabase->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 472                                 page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 473                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 474                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 475                         FROM $cur,$revision
 476                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", $fname );
 477
 478                 echo wfTimestamp( TS_DB );
 479                 echo "......Unlocking tables.\n";
 480                 $wgDatabase->query( "UNLOCK TABLES", $fname );
 481
 482                 echo wfTimestamp( TS_DB );
 483                 echo "......Renaming old.\n";
 484                 $wgDatabase->query( "ALTER TABLE $old RENAME TO $text", $fname );
 485
 486                 echo wfTimestamp( TS_DB );
 487                 echo "...done.\n";
 488         }
 489 }
 490
 491 function do_inverse_timestamp() {
 492         global $wgDatabase;
 493         if( $wgDatabase->fieldExists( 'revision', 'inverse_timestamp' ) ) {
 494                 echo "Removing revision.inverse_timestamp and fixing indexes... ";
 495                 dbsource( archive( 'patch-inverse_timestamp.sql' ), $wgDatabase );
 496                 echo "ok\n";
 497         } else {
 498                 echo "revision timestamp indexes already up to 2005-03-13\n";
 499         }
 500 }
 501
 502 function do_text_id() {
 503         global $wgDatabase;
 504         if( $wgDatabase->fieldExists( 'revision', 'rev_text_id' ) ) {
 505                 echo "...rev_text_id already in place.\n";
 506         } else {
 507                 echo "Adding rev_text_id field... ";
 508                 dbsource( archive( 'patch-rev_text_id.sql' ), $wgDatabase );
 509                 echo "ok\n";
 510         }
 511 }
 512
 513 function do_namespace_size() {
 514         $tables = array(
 515                 'page'          => 'page',
 516                 'archive'       => 'ar',
 517                 'recentchanges' => 'rc',
 518                 'watchlist'     => 'wl',
 519                 'querycache'    => 'qc',
 520                 'logging'       => 'log',
 521         );
 522         foreach( $tables as $table => $prefix ) {
 523                 do_namespace_size_on( $table, $prefix );
 524                 flush();
 525         }
 526 }
 527
 528 function do_namespace_size_on( $table, $prefix ) {
 529         global $wgDatabase, $wgDBtype;
 530         if ($wgDBtype != 'mysql')
 531                 return;
 532         $field = $prefix . '_namespace';
 533
 534         $tablename = $wgDatabase->tableName( $table );
 535         $result = $wgDatabase->query( "SHOW COLUMNS FROM $tablename LIKE '$field'" );
 536         $info = $wgDatabase->fetchObject( $result );
 537         $wgDatabase->freeResult( $result );
 538
 539         if( substr( $info->Type, 0, 3 ) == 'int' ) {
 540                 echo "...$field is already a full int ($info->Type).\n";
 541         } else {
 542                 echo "Promoting $field from $info->Type to int... ";
 543
 544                 $sql = "ALTER TABLE $tablename MODIFY $field int NOT NULL";
 545                 $wgDatabase->query( $sql );
 546
 547                 echo "ok\n";
 548         }
 549 }
 550
 551 function do_pagelinks_update() {
 552         global $wgDatabase;
 553         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 554                 echo "...already have pagelinks table.\n";
 555         } else {
 556                 echo "Converting links and brokenlinks tables to pagelinks... ";
 557                 dbsource( archive( 'patch-pagelinks.sql' ), $wgDatabase );
 558                 echo "ok\n";
 559                 flush();
 560
 561                 global $wgCanonicalNamespaceNames;
 562                 foreach( $wgCanonicalNamespaceNames as $ns => $name ) {
 563                         if( $ns != 0 ) {
 564                                 do_pagelinks_namespace( $ns );
 565                         }
 566                 }
 567         }
 568 }
 569
 570 function do_pagelinks_namespace( $namespace ) {
 571         global $wgDatabase, $wgContLang;
 572
 573         $ns = intval( $namespace );
 574         echo "Cleaning up broken links for namespace $ns... ";
 575
 576         $pagelinks = $wgDatabase->tableName( 'pagelinks' );
 577         $name = $wgContLang->getNsText( $ns );
 578         $prefix = $wgDatabase->strencode( $name );
 579         $likeprefix = str_replace( '_', '\\_', $prefix);
 580
 581         $sql = "UPDATE $pagelinks
 582                    SET pl_namespace=$ns,
 583                        pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 584                  WHERE pl_namespace=0
 585                    AND pl_title LIKE '$likeprefix:%'";
 586
 587         $wgDatabase->query( $sql, 'do_pagelinks_namespace' );
 588         echo "ok\n";
 589 }
 590
 591 function do_drop_img_type() {
 592         global $wgDatabase;
 593
 594         if( $wgDatabase->fieldExists( 'image', 'img_type' ) ) {
 595                 echo "Dropping unused img_type field in image table... ";
 596                 dbsource( archive( 'patch-drop_img_type.sql' ), $wgDatabase );
 597                 echo "ok\n";
 598         } else {
 599                 echo "No img_type field in image table; Good.\n";
 600         }
 601 }
 602
 603 function do_old_links_update() {
 604         global $wgDatabase;
 605         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 606                 echo "Already have pagelinks; skipping old links table updates.\n";
 607         } else {
 608                 convertLinks(); flush();
 609         }
 610 }
 611
 612 function do_user_unique_update() {
 613         global $wgDatabase;
 614         $duper = new UserDupes( $wgDatabase );
 615         if( $duper->hasUniqueIndex() ) {
 616                 echo "Already have unique user_name index.\n";
 617         } else {
 618                 if( !$duper->clearDupes() ) {
 619                         echo "WARNING: This next step will probably fail due to unfixed duplicates...\n";
 620                 }
 621                 echo "Adding unique index on user_name... ";
 622                 dbsource( archive( 'patch-user_nameindex.sql' ), $wgDatabase );
 623                 echo "ok\n";
 624         }
 625 }
 626
 627 function do_user_groups_update() {
 628         $fname = 'do_user_groups_update';
 629         global $wgDatabase;
 630
 631         if( $wgDatabase->tableExists( 'user_groups' ) ) {
 632                 echo "...user_groups table already exists.\n";
 633                 return do_user_groups_reformat();
 634         }
 635
 636         echo "Adding user_groups table... ";
 637         dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 638         echo "ok\n";
 639
 640         if( !$wgDatabase->tableExists( 'user_rights' ) ) {
 641                 if( $wgDatabase->fieldExists( 'user', 'user_rights' ) ) {
 642                         echo "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion...";
 643                         dbsource( archive( 'patch-user_rights.sql' ), $wgDatabase );
 644                         echo "ok\n";
 645                 } else {
 646                         echo "*** WARNING: couldn't locate user_rights table or field for upgrade.\n";
 647                         echo "*** You may need to manually configure some sysops by manipulating\n";
 648                         echo "*** the user_groups table.\n";
 649                         return;
 650                 }
 651         }
 652
 653         echo "Converting user_rights table to user_groups... ";
 654         $result = $wgDatabase->select( 'user_rights',
 655                 array( 'ur_user', 'ur_rights' ),
 656                 array( "ur_rights != ''" ),
 657                 $fname );
 658
 659         while( $row = $wgDatabase->fetchObject( $result ) ) {
 660                 $groups = array_unique(
 661                         array_map( 'trim',
 662                                 explode( ',', $row->ur_rights ) ) );
 663
 664                 foreach( $groups as $group ) {
 665                         $wgDatabase->insert( 'user_groups',
 666                                 array(
 667                                         'ug_user'  => $row->ur_user,
 668                                         'ug_group' => $group ),
 669                                 $fname );
 670                 }
 671         }
 672         $wgDatabase->freeResult( $result );
 673         echo "ok\n";
 674 }
 675
 676 function do_user_groups_reformat() {
 677         # Check for bogus formats from previous 1.5 alpha code.
 678         global $wgDatabase;
 679         $info = $wgDatabase->fieldInfo( 'user_groups', 'ug_group' );
 680
 681         if( $info->type == 'int' ) {
 682                 $oldug = $wgDatabase->tableName( 'user_groups' );
 683                 $newug = $wgDatabase->tableName( 'user_groups_bogus' );
 684                 echo "user_groups is in bogus intermediate format. Renaming to $newug... ";
 685                 $wgDatabase->query( "ALTER TABLE $oldug RENAME TO $newug" );
 686                 echo "ok\n";
 687
 688                 echo "Re-adding fresh user_groups table... ";
 689                 dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 690                 echo "ok\n";
 691
 692                 echo "***\n";
 693                 echo "*** WARNING: You will need to manually fix up user permissions in the user_groups\n";
 694                 echo "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n";
 695                 echo "***\n";
 696         } else {
 697                 echo "...user_groups is in current format.\n";
 698         }
 699
 700 }
 701
 702 function do_watchlist_null() {
 703         # Make sure wl_notificationtimestamp can be NULL,
 704         # and update old broken items.
 705         global $wgDatabase;
 706         $info = $wgDatabase->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 707
 708         if( $info->not_null ) {
 709                 echo "Making wl_notificationtimestamp nullable... ";
 710                 dbsource( archive( 'patch-watchlist-null.sql' ), $wgDatabase );
 711                 echo "ok\n";
 712         } else {
 713                 echo "...wl_notificationtimestamp is already nullable.\n";
 714         }
 715
 716 }
 717
 718 /**
 719  * @bug 3946
 720  */
 721 function do_page_random_update() {
 722         global $wgDatabase;
 723
 724         echo "Setting page_random to a random value on rows where it equals 0...";
 725
 726         $page = $wgDatabase->tableName( 'page' );
 727         $wgDatabase->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", 'do_page_random_update' );
 728         $rows = $wgDatabase->affectedRows();
 729
 730         echo "changed $rows rows\n";
 731 }
 732
 733 function do_templatelinks_update() {
 734         global $wgDatabase, $wgLoadBalancer;
 735         $fname = 'do_templatelinks_update';
 736
 737         if ( $wgDatabase->tableExists( 'templatelinks' ) ) {
 738                 echo "...templatelinks table already exists\n";
 739                 return;
 740         }
 741         echo "Creating templatelinks table...\n";
 742         dbsource( archive('patch-templatelinks.sql'), $wgDatabase );
 743         echo "Populating...\n";
 744         if ( isset( $wgLoadBalancer ) && $wgLoadBalancer->getServerCount() > 1 ) {
 745                 // Slow, replication-friendly update
 746                 $res = $wgDatabase->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 747                         array( 'pl_namespace' => NS_TEMPLATE ), $fname );
 748                 $count = 0;
 749                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
 750                         $count = ($count + 1) % 100;
 751                         if ( $count == 0 ) {
 752                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
 753                                         wfWaitForSlaves( 10 );
 754                                 } else {
 755                                         sleep( 1 );
 756                                 }
 757                         }
 758                         $wgDatabase->insert( 'templatelinks',
 759                                 array(
 760                                         'tl_from' => $row->pl_from,
 761                                         'tl_namespace' => $row->pl_namespace,
 762                                         'tl_title' => $row->pl_title,
 763                                 ), $fname
 764                         );
 765
 766                 }
 767                 $wgDatabase->freeResult( $res );
 768         } else {
 769                 // Fast update
 770                 $wgDatabase->insertSelect( 'templatelinks', 'pagelinks',
 771                         array(
 772                                 'tl_from' => 'pl_from',
 773                                 'tl_namespace' => 'pl_namespace',
 774                                 'tl_title' => 'pl_title'
 775                         ), array(
 776                                 'pl_namespace' => 10
 777                         ), $fname
 778                 );
 779         }
 780         echo "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n";
 781 }
 782
 783 # July 2006
 784 # Add ( rc_namespace, rc_user_text ) index [R. Church]
 785 function do_rc_indices_update() {
 786         global $wgDatabase;
 787         echo( "Checking for additional recent changes indices...\n" );
 788         # See if we can find the index we want
 789         $info = $wgDatabase->indexInfo( 'recentchanges', 'rc_ns_usertext', __METHOD__ );
 790         if( !$info ) {
 791                 # None, so create
 792                 echo( "...index on ( rc_namespace, rc_user_text ) not found; creating\n" );
 793                 dbsource( archive( 'patch-recentchanges-utindex.sql' ) );
 794         } else {
 795                 # Index seems to exist
 796                 echo( "...index on ( rc_namespace, rc_user_text ) seems to be ok\n" );
 797         }
 798
 799         #Add (rc_user_text, rc_timestamp) index [A. Garrett], November 2006
 800         # See if we can find the index we want
 801         $info = $wgDatabase->indexInfo( 'recentchanges', 'rc_user_text', __METHOD__ );
 802         if( !$info ) {
 803                 # None, so create
 804                 echo( "...index on ( rc_user_text, rc_timestamp ) not found; creating\n" );
 805                 dbsource( archive( 'patch-rc_user_text-index.sql' ) );
 806         } else {
 807                 # Index seems to exist
 808                 echo( "...index on ( rc_user_text, rc_timestamp ) seems to be ok\n" );
 809         }
 810 }
 811
 812 function index_has_field($table, $index, $field) {
 813         global $wgDatabase;
 814         echo( "Checking if $table index $index includes field $field...\n" );
 815         $info = $wgDatabase->indexInfo( $table, $index, __METHOD__ );
 816         if( $info ) {
 817                 foreach($info as $row) {
 818                         if($row->Column_name == $field) {
 819                                 echo( "...index $index on table $table seems to be ok\n" );
 820                                 return true;
 821                         }
 822                 }
 823         }
 824         echo( "...index $index on table $table has no field $field; adding\n" );
 825         return false;
 826 }
 827
 828 function do_backlinking_indices_update() {
 829         echo( "Checking for backlinking indices...\n" );
 830         if (!index_has_field('pagelinks', 'pl_namespace', 'pl_from') ||
 831                 !index_has_field('templatelinks', 'tl_namespace', 'tl_from') ||
 832                 !index_has_field('imagelinks', 'il_to', 'il_from'))
 833         {
 834                 dbsource( archive( 'patch-backlinkindexes.sql' ) );
 835         }
 836 }
 837
 838 function do_stats_init() {
 839         // Sometimes site_stats table is not properly populated.
 840         global $wgDatabase;
 841         echo "Checking site_stats row...";
 842         $row = $wgDatabase->selectRow( 'site_stats', '*', array( 'ss_row_id' => 1 ), __METHOD__ );
 843         if( $row === false ) {
 844                 echo "data is missing! rebuilding...\n";
 845
 846                 global $IP;
 847                 require_once "$IP/maintenance/initStats.inc";
 848                 wfInitStats();
 849         } else {
 850                 echo "ok.\n";
 851         }
 852 }
 853
 854 function purge_cache() {
 855         global $wgDatabase;
 856         # We can't guarantee that the user will be able to use TRUNCATE,
 857         # but we know that DELETE is available to us
 858         echo( "Purging caches..." );
 859         $wgDatabase->delete( 'objectcache', '*', __METHOD__ );
 860         echo( "done.\n" );
 861 }
 862
 863 function do_all_updates( $shared = false, $purge = true ) {
 864         global $wgNewTables, $wgNewFields, $wgRenamedTables, $wgSharedDB, $wgDatabase, $wgDBtype, $IP;
 865
 866         $doUser = !$wgSharedDB || $shared;
 867
 868         if ($wgDBtype === 'postgres') {
 869                 do_postgres_updates();
 870                 return;
 871         }
 872
 873         # Rename tables
 874         foreach ( $wgRenamedTables as $tableRecord ) {
 875                 rename_table( $tableRecord[0], $tableRecord[1], $tableRecord[2] );
 876         }
 877
 878         # Add missing tables
 879         foreach ( $wgNewTables as $tableRecord ) {
 880                 add_table( $tableRecord[0], $tableRecord[1] );
 881                 flush();
 882         }
 883
 884         # Add missing fields
 885         foreach ( $wgNewFields as $fieldRecord ) {
 886                 if ( $fieldRecord[0] != 'user' || $doUser ) {
 887                         add_field( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2] );
 888                 }
 889                 flush();
 890         }
 891
 892         # Do schema updates which require special handling
 893         do_interwiki_update(); flush();
 894         do_index_update(); flush();
 895         do_old_links_update(); flush();
 896         do_image_name_unique_update(); flush();
 897         do_watchlist_update(); flush();
 898         if ( $doUser ) {
 899                 do_user_update(); flush();
 900         }
 901 ######  do_copy_newtalk_to_watchlist(); flush();
 902         do_logging_encoding(); flush();
 903
 904         do_schema_restructuring(); flush();
 905         do_inverse_timestamp(); flush();
 906         do_text_id(); flush();
 907         do_namespace_size(); flush();
 908
 909         do_pagelinks_update(); flush();
 910         do_templatelinks_update(); flush(); // after pagelinks
 911
 912         do_drop_img_type(); flush();
 913
 914         if ( $doUser ) {
 915                 do_user_unique_update(); flush();
 916         }
 917         do_user_groups_update(); flush();
 918
 919         do_watchlist_null(); flush();
 920
 921         //do_image_index_update(); flush();
 922
 923         do_logging_timestamp_index(); flush();
 924
 925         do_page_random_update(); flush();
 926
 927         do_rc_indices_update(); flush();
 928
 929         add_table( 'redirect', 'patch-redirect.sql' );
 930
 931         do_backlinking_indices_update(); flush();
 932
 933         do_restrictions_update(); flush ();
 934
 935         echo "Deleting old default messages (this may take a long time!)..."; flush();
 936         deleteDefaultMessages();
 937         echo "Done\n"; flush();
 938
 939         do_stats_init(); flush();
 940
 941         if( $purge ) {
 942                 purge_cache();
 943                 flush();
 944         }
 945 }
 946
 947 function archive($name) {
 948         global $wgDBtype, $IP;
 949         switch ($wgDBtype) {
 950         case "postgres":
 951                 return "$IP/maintenance/postgres/archives/$name";
 952         default:
 953                 return "$IP/maintenance/archives/$name";
 954         }
 955 }
 956
 957 function do_restrictions_update() {
 958         # Adding page_restrictions table, obsoleting page.page_restrictions.
 959         #  Migrating old restrictions to new table
 960         # -- Andrew Garrett, January 2007.
 961
 962         global $wgDatabase;
 963
 964         $name = 'page_restrictions';
 965         $patch = 'patch-page_restrictions.sql';
 966
 967         if ( $wgDatabase->tableExists( $name ) ) {
 968                 echo "...$name table already exists.\n";
 969         } else {
 970                 echo "Creating $name table...";
 971                 dbsource( archive($patch), $wgDatabase );
 972                 echo "ok\n";
 973
 974                 echo "Migrating old restrictions to new table...";
 975
 976                 $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array("page_restrictions!=''", "page_restrictions!='edit=:move='"), __METHOD__ );
 977
 978                 $count = 0;
 979
 980                 while ($row = $wgDatabase->fetchObject($res) ) {
 981                         $count = ($count + 1) % 100;
 982
 983                         if ($count == 0) {
 984                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
 985                                         wfWaitForSlaves( 10 );
 986                                 } else {
 987                                         sleep( 1 );
 988                                 }
 989                         }
 990
 991                         # Figure out what the restrictions are..
 992                         $id = $row->page_id;
 993                         $flatrestrictions = explode( ':', $row->page_restrictions );
 994
 995                         $restrictions = array ();
 996                         foreach( $flatrestrictions as $restriction ) {
 997                                 $thisrestriction = explode( '=', $restriction, 2 );
 998                                 if( count( $thisrestriction ) == 1 ) {
 999                                         // Compatibility with old protections from before
1000                                         // separate move protection was added.
1001                                         list( $level ) = $thisrestriction;
1002                                         if( $level ) {
1003                                                 $restrictions['edit'] = $level;
1004                                                 $restrictions['move'] = $level;
1005                                         }
1006                                 } else {
1007                                         list( $type, $level ) = $thisrestriction;
1008                                         if( $level ) {
1009                                                 $restrictions[$type] = $level;
1010                                         }
1011                                 }
1012
1013                         $wgDatabase->update( 'page', array ( 'page_restrictions' => ''), array( 'page_id' => $id ), __METHOD__ );
1014
1015                         }
1016
1017                         foreach( $restrictions as $type => $level ) {
1018                                 $wgDatabase->insert( 'page_restrictions', array ( 'pr_page' => $id,
1019                                                                                         'pr_type' => $type,
1020                                                                                         'pr_level' => $level,
1021                                                                                         'pr_cascade' => 0 ),
1022                                                                                         __METHOD__ );
1023                         }
1024                 }
1025                 print "ok\n";
1026         }
1027
1028 }
1029
1030 function
1031 pg_describe_table($table)
1032 {
1033 global  $wgDatabase, $wgDBmwschema;
1034         $q = <<<END
1035 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
1036         WHERE pg_class.relnamespace = pg_namespace.oid
1037           AND attrelid=pg_class.oid AND attnum > 0
1038           AND relname=%s AND nspname=%s
1039 END;
1040         $res = $wgDatabase->query(sprintf($q,
1041                         $wgDatabase->addQuotes($table),
1042                         $wgDatabase->addQuotes($wgDBmwschema)));
1043         if (!$res)
1044                 return null;
1045
1046         $cols = array();
1047         while ($r = $wgDatabase->fetchRow($res)) {
1048                 $cols[] = array(
1049                                 "name" => $r[0],
1050                                 "ord" => $r[1],
1051                         );
1052         }
1053         return $cols;
1054 }
1055
1056 function
1057 pg_describe_index($idx)
1058 {
1059 global  $wgDatabase, $wgDBmwschema;
1060
1061         // first fetch the key (which is a list of columns ords) and
1062         // the table the index applies to (an oid)
1063         $q = <<<END
1064 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
1065         WHERE nspname=%s
1066           AND pg_class.relnamespace = pg_namespace.oid
1067           AND relname=%s
1068           AND indexrelid=pg_class.oid
1069 END;
1070         $res = $wgDatabase->query(sprintf($q,
1071                         $wgDatabase->addQuotes($wgDBmwschema),
1072                         $wgDatabase->addQuotes($idx)));
1073         if (!$res)
1074                 return null;
1075         if (!($r = $wgDatabase->fetchRow($res))) {
1076                 $wgDatabase->freeResult($res);
1077                 return null;
1078         }
1079
1080         $indkey = $r[0];
1081         $relid = intval($r[1]);
1082         $indkeys = explode(" ", $indkey);
1083         $wgDatabase->freeResult($res);
1084
1085         $colnames = array();
1086         foreach ($indkeys as $rid) {
1087                 $query = <<<END
1088 SELECT attname FROM pg_class, pg_attribute
1089         WHERE attrelid=$relid
1090           AND attnum=%d
1091           AND attrelid=pg_class.oid
1092 END;
1093                 $r2 = $wgDatabase->query(sprintf($query, $rid));
1094                 if (!$r2)
1095                         return null;
1096                 if (!($row2 = $wgDatabase->fetchRow($r2))) {
1097                         $wgDatabase->freeResult($r2);
1098                         return null;
1099                 }
1100                 $colnames[] = $row2[0];
1101                 $wgDatabase->freeResult($r2);
1102         }
1103
1104         return $colnames;
1105 }
1106
1107 function
1108 pg_column_has_type($table, $column, $wanttype)
1109 {
1110 global  $wgDatabase, $wgDBname, $wgDBmwschema;
1111
1112         $q = <<<END
1113 SELECT typname FROM pg_class, pg_namespace, pg_attribute, pg_type
1114         WHERE relnamespace=pg_namespace.oid AND relkind='r'
1115               AND attrelid=pg_class.oid AND atttypid=pg_type.oid
1116               AND nspname=%s AND relname=%s AND attname=%s;
1117 END;
1118         $res = $wgDatabase->query(sprintf($q,
1119                         $wgDatabase->addQuotes($wgDBmwschema),
1120                         $wgDatabase->addQuotes($table),
1121                         $wgDatabase->addQuotes($column)));
1122         $row = $wgDatabase->fetchRow($res);
1123         $istype = false;
1124         if ($row)
1125                 $istype = $row[0] === $wanttype;
1126         $wgDatabase->freeResult($res);
1127         return $istype;
1128 }
1129
1130 function
1131 pg_column_exists($table, $column)
1132 {
1133 global  $wgDatabase, $wgDBname, $wgDBmwschema;
1134
1135         $q = <<<END
1136 SELECT 1 FROM pg_class, pg_namespace, pg_attribute
1137         WHERE relnamespace=pg_namespace.oid AND relkind='r'
1138               AND attrelid=pg_class.oid
1139               AND nspname=%s AND relname=%s AND attname=%s;
1140 END;
1141         $res = $wgDatabase->query(sprintf($q,
1142                         $wgDatabase->addQuotes($wgDBmwschema),
1143                         $wgDatabase->addQuotes($table),
1144                         $wgDatabase->addQuotes($column)));
1145         $row = $wgDatabase->fetchRow($res);
1146         $exists = !!$row;
1147         $wgDatabase->freeResult($res);
1148         return $exists;
1149 }
1150
1151 function
1152 pg_column_is_nullable($table, $column)
1153 {
1154 global  $wgDatabase, $wgDBname, $wgDBmwschema;
1155
1156         $q = <<<END
1157 SELECT attnotnull FROM pg_class, pg_namespace, pg_attribute
1158         WHERE relnamespace=pg_namespace.oid AND relkind='r'
1159               AND attrelid=pg_class.oid
1160               AND nspname=%s AND relname=%s AND attname=%s;
1161 END;
1162         $res = $wgDatabase->query(sprintf($q,
1163                         $wgDatabase->addQuotes($wgDBmwschema),
1164                         $wgDatabase->addQuotes($table),
1165                         $wgDatabase->addQuotes($column)));
1166         $row = $wgDatabase->fetchRow($res);
1167         $nullable = ($row[0] === 'f');
1168         $wgDatabase->freeResult($res);
1169         return $nullable;
1170 }
1171
1172 define('PG_RELTYPE_TABLE', 'r');
1173 define('PG_RELTYPE_SEQUENCE', 'S');
1174
1175 function
1176 pg_relation_exists($rel, $type)
1177 {
1178 global  $wgDatabase, $wgDBname, $wgDBmwschema;
1179
1180         $q = <<<END
1181 SELECT 1 FROM pg_class, pg_namespace
1182         WHERE relnamespace=pg_namespace.oid AND relkind=%s
1183               AND nspname=%s AND relname=%s
1184 END;
1185         $res = $wgDatabase->query(sprintf($q,
1186                         $wgDatabase->addQuotes($type),
1187                         $wgDatabase->addQuotes($wgDBmwschema),
1188                         $wgDatabase->addQuotes($rel)));
1189         $row = $wgDatabase->fetchRow($res);
1190         $exists = !!$row;
1191         $wgDatabase->freeResult($res);
1192         return $exists;
1193 }
1194
1195 function
1196 pg_table_exists($table)
1197 {
1198         return pg_relation_exists($table, PG_RELTYPE_TABLE);
1199 }
1200
1201 function
1202 pg_sequence_exists($seq)
1203 {
1204         return pg_relation_exists($seq, PG_RELTYPE_SEQUENCE);
1205 }
1206
1207 function
1208 pg_trigger_exists($table, $trigger)
1209 {
1210 global  $wgDatabase, $wgDBname, $wgDBmwschema;
1211
1212         $q = <<<END
1213 SELECT 1 FROM pg_class, pg_namespace, pg_trigger
1214         WHERE relnamespace=pg_namespace.oid AND relkind='r'
1215               AND tgrelid=pg_class.oid
1216               AND nspname=%s AND relname=%s AND tgname=%s
1217 END;
1218         $res = $wgDatabase->query(sprintf($q,
1219                         $wgDatabase->addQuotes($wgDBmwschema),
1220                         $wgDatabase->addQuotes($table),
1221                         $wgDatabase->addQuotes($trigger)));
1222         $row = $wgDatabase->fetchRow($res);
1223         $exists = !!$row;
1224         $wgDatabase->freeResult($res);
1225         return $exists;
1226 }
1227
1228
1229 function
1230 pg_index_exists($table, $index)
1231 {
1232 global  $wgDatabase, $wgDBmwschema;
1233         $exists = $wgDatabase->selectField("pg_indexes", "indexname",
1234                         array(  "indexname" => $index,
1235                                 "tablename" => $table,
1236                                 "schemaname" => $wgDBmwschema));
1237         return $exists === $index;
1238 }
1239
1240 function
1241 pg_rule_exists($table, $rule)
1242 {
1243 global  $wgDatabase, $wgDBmwschema;
1244         $exists = $wgDatabase->selectField("pg_rules", "rulename",
1245                         array(  "rulename" => $rule,
1246                                 "tablename" => $table,
1247                                 "schemaname" => $wgDBmwschema));
1248         return $exists === $rule;
1249 }
1250
1251 function
1252 pg_fkey_deltype($fkey)
1253 {
1254 global  $wgDatabase, $wgDBmwschema;
1255         $q = <<<END
1256 SELECT confdeltype FROM pg_constraint, pg_namespace
1257         WHERE connamespace=pg_namespace.oid
1258           AND nspname=%s
1259           AND conname=%s;
1260 END;
1261         $r = $wgDatabase->query(sprintf($q,
1262                 $wgDatabase->addQuotes($wgDBmwschema),
1263                 $wgDatabase->addQuotes($fkey)));
1264         if (!($row = $wgDatabase->fetchRow($r)))
1265                 return null;
1266         return $row[0];
1267 }
1268
1269 function
1270 pg_rule_def($table, $rule)
1271 {
1272 global  $wgDatabase, $wgDBmwschema;
1273         $q = <<<END
1274 SELECT definition FROM pg_rules
1275         WHERE schemaname = %s
1276           AND tablename = %s
1277           AND rulename = %s
1278 END;
1279         $r = $wgDatabase->query(sprintf($q,
1280                         $wgDatabase->addQuotes($wgDBmwschema),
1281                         $wgDatabase->addQuotes($table),
1282                         $wgDatabase->addQuotes($rule)));
1283         $row = $wgDatabase->fetchRow($r);
1284         if (!$row)
1285                 return null;
1286         $d = $row[0];
1287         $wgDatabase->freeResult($r);
1288         return $d;
1289 }
1290
1291 function do_postgres_updates() {
1292         global $wgDatabase, $wgVersion, $wgDBmwschema, $wgShowExceptionDetails;
1293
1294         $wgShowExceptionDetails = 1;
1295
1296         # Just in case their LocalSettings.php does not have this:
1297         if ( !isset( $wgDBmwschema ))
1298                 $wgDBmwschema = 'mediawiki';
1299
1300         $newsequences = array(
1301                 "log_log_id_seq"
1302         );
1303
1304         $newtables = array(
1305                 array("mediawiki_version", "patch-mediawiki_version.sql"),
1306                 array("mwuser",            "patch-mwuser.sql"),
1307                 array("pagecontent",       "patch-pagecontent.sql"),
1308                 array("querycachetwo",     "patch-querycachetwo.sql"),
1309                 array("page_restrictions", "patch-page_restrictions.sql"),
1310                 array("profiling",         "patch-profiling.sql"),
1311                 array("redirect",          "patch-redirect.sql"),
1312         );
1313
1314         $newcols = array(
1315                 array("archive",       "ar_len",               "INTEGER"),
1316                 array("ipblocks",      "ipb_anon_only",        "CHAR NOT NULL DEFAULT '0'"),
1317                 array("ipblocks",      "ipb_create_account",   "CHAR NOT NULL DEFAULT '1'"),
1318                 array("ipblocks",      "ipb_deleted",          "INTEGER NOT NULL DEFAULT 0"),
1319                 array("ipblocks",      "ipb_enable_autoblock", "CHAR NOT NULL DEFAULT '1'"),
1320                 array("filearchive",   "fa_deleted",           "INTEGER NOT NULL DEFAULT 0"),
1321                 array("logging",       "log_deleted",          "INTEGER NOT NULL DEFAULT 0")
1322                 array("logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('log_log_id_seq')"),
1323                 array("logging",       "log_params",           "TEXT"),
1324                 array("mwuser",        "user_editcount",       "INTEGER"),
1325                 array("mwuser",        "user_newpass_time",    "TIMESTAMPTZ"),
1326                 array("recentchanges", "rc_deleted",           "INTEGER NOT NULL DEFAULT 0"),
1327                 array("recentchanges", "rc_log_action",        "TEXT"),
1328         array("recentchanges", "rc_log_type",          "TEXT"),
1329         array("recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0"),
1330                 array("recentchanges", "rc_new_len",           "INTEGER"),
1331                 array("recentchanges", "rc_old_len",           "INTEGER"),
1332                 array("recentchanges", "rc_params",            "TEXT"),
1333                 array("revision",      "rev_len",              "INTEGER"),
1334         );
1335
1336
1337         # table, column, desired type, USING clause if needed
1338         $typechanges = array(
1339                 array("image",        "img_size",        "int4",  ""),
1340                 array("image",        "img_width",       "int4",  ""),
1341                 array("image",        "img_height",      "int4",  ""),
1342                 array("ipblocks",     "ipb_address",     "text", "ipb_address::text"),
1343                 array("math",         "math_inputhash",  "bytea", "decode(math_inputhash,'escape')"),
1344                 array("math",         "math_outputhash", "bytea", "decode(math_outputhash,'escape')"),
1345                 array("oldimage",     "oi_size",         "int4",  ""),
1346                 array("oldimage",     "oi_width",        "int4",  ""),
1347                 array("oldimage",     "oi_height",       "int4",  ""),
1348                 array("user_newtalk", "user_ip",         "text", "host(user_ip)"),
1349         );
1350
1351         $newindexes = array(
1352                 array("revision", "rev_text_id_idx", "patch-rev_text_id_idx.sql")
1353         );
1354
1355         $newrules = array(
1356         );
1357
1358
1359         foreach ($newsequences as $ns) {
1360                 if (pg_sequence_exists($ns)) {
1361                         echo "... sequence $ns already exists\n";
1362                         continue;
1363                 }
1364
1365                 echo "... create sequence $ns\n";
1366                 $wgDatabase->query("CREATE SEQUENCE $ns");
1367         }
1368
1369         foreach ($newtables as $nt) {
1370                 if (pg_table_exists($nt[0])) {
1371                         echo "... table $nt[0] already exists\n";
1372                         continue;
1373                 }
1374
1375                 echo "... create table $nt[0]\n";
1376                 dbsource(archive($nt[1]));
1377         }
1378
1379         foreach ($newcols as $nc) {
1380                 if (pg_column_exists($nc[0], $nc[1])) {
1381                         echo "... column $nc[0].$nc[1] already exists\n";
1382                         continue;
1383                 }
1384
1385                 echo "... add column $nc[0].$nc[1]\n";
1386                 $wgDatabase->query("ALTER TABLE $nc[0] ADD $nc[1] $nc[2]");
1387         }
1388
1389         foreach ($typechanges as $tc) {
1390                 if (!pg_column_exists($tc[0], $tc[1])) {
1391                         echo "... error: expected column $tc[0].$tc[1] to exist\n";
1392                         exit(1);
1393                 }
1394
1395                 if (pg_column_has_type($tc[0], $tc[1], $tc[2]))
1396                         echo "... $tc[0].$tc[1] is already $tc[2]\n";
1397                 else {
1398                         echo "... change $tc[0].$tc[1] to $tc[2]\n";
1399                         $sql = "ALTER TABLE $tc[0] ALTER $tc[1] TYPE $tc[2]";
1400                         if (strlen($tc[3])) {
1401                                 $sql .= " USING $tc[3]";
1402                         }
1403                         $sql .= ";\nCOMMIT;\n";
1404                         $wgDatabase->query($sql);
1405                 }
1406         }
1407
1408         foreach ($newindexes as $ni) {
1409                 if (pg_index_exists($ni[0], $ni[1])) {
1410                         echo "... index $ni[1] on $ni[0] already exists\n";
1411                         continue;
1412                 }
1413                 dbsource(archive($ni[2]));
1414         }
1415
1416         foreach ($newrules as $nr) {
1417                 if (pg_rule_exists($nr[0], $nr[1])) {
1418                         echo "... rule $nr[1] on $nr[0] already exists\n";
1419                         continue;
1420                 }
1421                 dbsource(archive($nr[2]));
1422         }
1423
1424         if (!pg_trigger_exists("page", "page_deleted")) {
1425                 echo "... create page_deleted trigger\n";
1426                 dbsource(archive('patch-page_deleted.sql'));
1427         }
1428
1429         if (!pg_column_is_nullable("recentchanges", "rc_cur_id")) {
1430                 echo "... remove NOT NULL constraint on recentchanges.rc_cur_id\n";
1431                 dbsource(archive('patch-rc_cur_id-not-null.sql'));
1432         }
1433
1434         $pu = pg_describe_index("pagelink_unique");
1435         if (!is_null($pu) && ($pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title")) {
1436                 echo "... dropping obsolete pagelink_unique index\n";
1437                 $wgDatabase->query("DROP INDEX pagelink_unique");
1438                 $pu = null;
1439         } else
1440                 echo "... obsolete pagelink_unique index not present\n";
1441
1442         if (is_null($pu)) {
1443                 echo "... adding new pagelink_unique index\n";
1444                 $wgDatabase->query("CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)");
1445         } else
1446                 echo "... already have current pagelink_unique index\n";
1447
1448         if (pg_fkey_deltype("revision_rev_user_fkey") == 'r') {
1449                 echo "... revision_rev_user_fkey is already ON DELETE RESTRICT\n";
1450         } else {
1451                 echo "... change revision_rev_user_fkey to ON DELETE RESTRICT\n";
1452                 dbsource(archive('patch-revision_rev_user_fkey.sql'));
1453         }
1454
1455         if (pg_table_exists("archive2")) {
1456                 echo "... convert archive2 back to normal archive table\n";
1457                 if (pg_rule_exists("archive", "archive_insert")) {
1458                         echo "...   drop rule archive_insert\n";
1459                         $wgDatabase->query("DROP RULE archive_insert ON archive");
1460                 }
1461                 if (pg_rule_exists("archive", "archive_delete")) {
1462                         echo "...   drop rule archive_delete\n";
1463                         $wgDatabase->query("DROP RULE archive_delete ON archive");
1464                 }
1465
1466                 dbsource(archive("patch-remove-archive2.sql"));
1467         } else
1468                 echo "... obsolete archive2 not present\n";
1469
1470         if (!pg_column_exists("archive", "ar_deleted")) {
1471                 echo "... add archive.ar_deleted\n";
1472                 dbsource(archive("patch-archive-ar_deleted.sql"));
1473         } else
1474                 echo "... archive.ar_deleted already exists\n";
1475
1476         return;
1477 }
1478
1479 ?>