maintenance/upgrade1_5.php

   1 <?php
   2
   3 // Alternate 1.4 -> 1.5 schema upgrade
   4 // This does only the main tables + UTF-8
   5 // and is designed to allow upgrades to interleave
   6 // with other updates on the replication stream so
   7 // that large wikis can be upgraded without disrupting
   8 // other services.
   9 //
  10 // Note: this script DOES NOT apply every update, nor
  11 // will it probably handle much older versions, etc.
  12 // Run this, FOLLOWED BY update.php, for upgrading
  13 // from 1.4.5 release to 1.5.
  14
  15 $options = array( 'step' );
  16
  17 require_once( 'commandLine.inc' );
  18 require_once( 'cleanupDupes.inc' );
  19 require_once( 'userDupes.inc' );
  20 require_once( 'updaters.inc' );
  21
  22 define( 'MW_UPGRADE_COPY',     false );
  23 define( 'MW_UPGRADE_ENCODE',   true  );
  24 define( 'MW_UPGRADE_NULL',     null  );
  25 define( 'MW_UPGRADE_CALLBACK', null  ); // for self-documentation only
  26
  27 class FiveUpgrade {
  28         function FiveUpgrade() {
  29                 global $wgDatabase;
  30                 $this->conversionTables = $this->prepareWindows1252();
  31
  32                 $this->dbw =& $this->newConnection();
  33                 $this->dbr =& $this->streamConnection();
  34
  35                 $this->cleanupSwaps = array();
  36                 $this->emailAuth = false; # don't preauthenticate emails
  37                 $this->maxLag    = 10; # if slaves are lagged more than 10 secs, wait
  38         }
  39
  40         function doing( $step ) {
  41                 return is_null( $this->step ) || $step == $this->step;
  42         }
  43
  44         function upgrade( $step ) {
  45                 $this->step = $step;
  46
  47                 $tables = array(
  48                         'page',
  49                         'links',
  50                         'user',
  51                         'image',
  52                         'oldimage',
  53                         'watchlist',
  54                         'logging',
  55                         'archive',
  56                         'imagelinks',
  57                         'categorylinks',
  58                         'ipblocks',
  59                         'recentchanges',
  60                         'querycache' );
  61                 foreach( $tables as $table ) {
  62                         if( $this->doing( $table ) ) {
  63                                 $method = 'upgrade' . ucfirst( $table );
  64                                 $this->$method();
  65                         }
  66                 }
  67
  68                 if( $this->doing( 'cleanup' ) ) {
  69                         $this->upgradeCleanup();
  70                 }
  71         }
  72
  73
  74         /**
  75          * Open a connection to the master server with the admin rights.
  76          * @return Database
  77          * @access private
  78          */
  79         function &newConnection() {
  80                 global $wgDBadminuser, $wgDBadminpassword;
  81                 global $wgDBserver, $wgDBname;
  82                 $db =& new Database( $wgDBserver, $wgDBadminuser, $wgDBadminpassword, $wgDBname );
  83                 return $db;
  84         }
  85
  86         /**
  87          * Open a second connection to the master server, with buffering off.
  88          * This will let us stream large datasets in and write in chunks on the
  89          * other end.
  90          * @return Database
  91          * @access private
  92          */
  93         function &streamConnection() {
  94                 $timeout = 3600 * 24;
  95                 $db =& $this->newConnection();
  96                 $db->bufferResults( false );
  97                 $db->query( "SET net_read_timeout=$timeout" );
  98                 $db->query( "SET net_write_timeout=$timeout" );
  99                 return $db;
 100         }
 101
 102         /**
 103          * Prepare a conversion array for converting Windows Code Page 1252 to
 104          * UTF-8. This should provide proper conversion of text that was miscoded
 105          * as Windows-1252 by naughty user-agents, and doesn't rely on an outside
 106          * iconv library.
 107          *
 108          * @return array
 109          * @access private
 110          */
 111         function prepareWindows1252() {
 112                 # Mappings from:
 113                 # http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP1252.TXT
 114                 static $cp1252 = array(
 115                         0x80 => 0x20AC, #EURO SIGN
 116                         0x81 => UNICODE_REPLACEMENT,
 117                         0x82 => 0x201A, #SINGLE LOW-9 QUOTATION MARK
 118                         0x83 => 0x0192, #LATIN SMALL LETTER F WITH HOOK
 119                         0x84 => 0x201E, #DOUBLE LOW-9 QUOTATION MARK
 120                         0x85 => 0x2026, #HORIZONTAL ELLIPSIS
 121                         0x86 => 0x2020, #DAGGER
 122                         0x87 => 0x2021, #DOUBLE DAGGER
 123                         0x88 => 0x02C6, #MODIFIER LETTER CIRCUMFLEX ACCENT
 124                         0x89 => 0x2030, #PER MILLE SIGN
 125                         0x8A => 0x0160, #LATIN CAPITAL LETTER S WITH CARON
 126                         0x8B => 0x2039, #SINGLE LEFT-POINTING ANGLE QUOTATION MARK
 127                         0x8C => 0x0152, #LATIN CAPITAL LIGATURE OE
 128                         0x8D => UNICODE_REPLACEMENT,
 129                         0x8E => 0x017D, #LATIN CAPITAL LETTER Z WITH CARON
 130                         0x8F => UNICODE_REPLACEMENT,
 131                         0x90 => UNICODE_REPLACEMENT,
 132                         0x91 => 0x2018, #LEFT SINGLE QUOTATION MARK
 133                         0x92 => 0x2019, #RIGHT SINGLE QUOTATION MARK
 134                         0x93 => 0x201C, #LEFT DOUBLE QUOTATION MARK
 135                         0x94 => 0x201D, #RIGHT DOUBLE QUOTATION MARK
 136                         0x95 => 0x2022, #BULLET
 137                         0x96 => 0x2013, #EN DASH
 138                         0x97 => 0x2014, #EM DASH
 139                         0x98 => 0x02DC, #SMALL TILDE
 140                         0x99 => 0x2122, #TRADE MARK SIGN
 141                         0x9A => 0x0161, #LATIN SMALL LETTER S WITH CARON
 142                         0x9B => 0x203A, #SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
 143                         0x9C => 0x0153, #LATIN SMALL LIGATURE OE
 144                         0x9D => UNICODE_REPLACEMENT,
 145                         0x9E => 0x017E, #LATIN SMALL LETTER Z WITH CARON
 146                         0x9F => 0x0178, #LATIN CAPITAL LETTER Y WITH DIAERESIS
 147                         );
 148                 $pairs = array();
 149                 for( $i = 0; $i < 0x100; $i++ ) {
 150                         $unicode = isset( $cp1252[$i] ) ? $cp1252[$i] : $i;
 151                         $pairs[chr( $i )] = codepointToUtf8( $unicode );
 152                 }
 153                 return $pairs;
 154         }
 155
 156         /**
 157          * Convert from 8-bit Windows-1252 to UTF-8 if necessary.
 158          * @param string $text
 159          * @return string
 160          * @access private
 161          */
 162         function conv( $text ) {
 163                 global $wgUseLatin1;
 164                 return is_null( $text )
 165                         ? null
 166                         : ( $wgUseLatin1
 167                                 ? strtr( $text, $this->conversionTables )
 168                                 : $text );
 169         }
 170
 171         /**
 172          * Dump timestamp and message to output
 173          * @param string $message
 174          * @access private
 175          */
 176         function log( $message ) {
 177                 echo wfTimestamp( TS_DB ) . ': ' . $message . "\n";
 178                 flush();
 179         }
 180
 181         /**
 182          * Initialize the chunked-insert system.
 183          * Rows will be inserted in chunks of the given number, rather
 184          * than in a giant INSERT...SELECT query, to keep the serialized
 185          * MySQL database replication from getting hung up. This way other
 186          * things can be going on during conversion without waiting for
 187          * slaves to catch up as badly.
 188          *
 189          * @param int $chunksize Number of rows to insert at once
 190          * @param int $final Total expected number of rows / id of last row,
 191          *                   used for progress reports.
 192          * @param string $table to insert on
 193          * @param string $fname function name to report in SQL
 194          * @access private
 195          */
 196         function setChunkScale( $chunksize, $final, $table, $fname ) {
 197                 $this->chunkSize  = $chunksize;
 198                 $this->chunkFinal = $final;
 199                 $this->chunkCount = 0;
 200                 $this->chunkStartTime = wfTime();
 201                 $this->chunkOptions = array();
 202                 $this->chunkTable = $table;
 203                 $this->chunkFunction = $fname;
 204         }
 205
 206         /**
 207          * Chunked inserts: perform an insert if we've reached the chunk limit.
 208          * Prints a progress report with estimated completion time.
 209          * @param array &$chunk -- This will be emptied if an insert is done.
 210          * @param int $key A key identifier to use in progress estimation in
 211          *                 place of the number of rows inserted. Use this if
 212          *                 you provided a max key number instead of a count
 213          *                 as the final chunk number in setChunkScale()
 214          * @access private
 215          */
 216         function addChunk( &$chunk, $key = null ) {
 217                 if( count( $chunk ) >= $this->chunkSize ) {
 218                         $this->insertChunk( $chunk );
 219
 220                         $this->chunkCount += count( $chunk );
 221                         $now = wfTime();
 222                         $delta = $now - $this->chunkStartTime;
 223                         $rate = $this->chunkCount / $delta;
 224
 225                         if( is_null( $key ) ) {
 226                                 $completed = $this->chunkCount;
 227                         } else {
 228                                 $completed = $key;
 229                         }
 230                         $portion = $completed / $this->chunkFinal;
 231
 232                         $estimatedTotalTime = $delta / $portion;
 233                         $eta = $this->chunkStartTime + $estimatedTotalTime;
 234
 235                         printf( "%s: %6.2f%% done on %s; ETA %s [%d/%d] %.2f/sec\n",
 236                                 wfTimestamp( TS_DB, intval( $now ) ),
 237                                 $portion * 100.0,
 238                                 $this->chunkTable,
 239                                 wfTimestamp( TS_DB, intval( $eta ) ),
 240                                 $completed,
 241                                 $this->chunkFinal,
 242                                 $rate );
 243                         flush();
 244
 245                         $chunk = array();
 246                 }
 247         }
 248
 249         /**
 250          * Chunked inserts: perform an insert unconditionally, at the end, and log.
 251          * @param array &$chunk -- This will be emptied if an insert is done.
 252          * @access private
 253          */
 254         function lastChunk( &$chunk ) {
 255                 $n = count( $chunk );
 256                 if( $n > 0 ) {
 257                         $this->insertChunk( $chunk );
 258                 }
 259                 $this->log( "100.00% done on $this->chunkTable (last chunk $n rows)." );
 260         }
 261
 262         /**
 263          * Chunked inserts: perform an insert.
 264          * @param array &$chunk -- This will be emptied if an insert is done.
 265          * @access private
 266          */
 267         function insertChunk( &$chunk ) {
 268                 // Give slaves a chance to catch up
 269                 wfWaitForSlaves( $this->maxLag );
 270                 $this->dbw->insert( $this->chunkTable, $chunk, $this->chunkFunction, $this->chunkOptions );
 271         }
 272
 273
 274         /**
 275          * Copy and transcode a table to table_temp.
 276          * @param string $name Base name of the source table
 277          * @param string $tabledef CREATE TABLE definition, w/ $1 for the name
 278          * @param array $fields set of destination fields to these constants:
 279          *              MW_UPGRADE_COPY   - straight copy
 280          *              MW_UPGRADE_ENCODE - for old Latin1 wikis, conv to UTF-8
 281          *              MW_UPGRADE_NULL   - just put NULL
 282          * @param callable $callback An optional callback to modify the data
 283          *                           or perform other processing. Func should be
 284          *                           ( object $row, array $copy ) and return $copy
 285          * @access private
 286          */
 287         function copyTable( $name, $tabledef, $fields, $callback = null ) {
 288                 $fname = 'FiveUpgrade::copyTable';
 289
 290                 $name_temp = $name . '_temp';
 291                 $this->log( "Migrating $name table to $name_temp..." );
 292
 293                 $table      = $this->dbw->tableName( $name );
 294                 $table_temp = $this->dbw->tableName( $name_temp );
 295
 296                 // Create temporary table; we're going to copy everything in there,
 297                 // then at the end rename the final tables into place.
 298                 $def = str_replace( '$1', $table_temp, $tabledef );
 299                 $this->dbw->query( $def, $fname );
 300
 301                 $numRecords = $this->dbw->selectField( $name, 'COUNT(*)', '', $fname );
 302                 $this->setChunkScale( 100, $numRecords, $name_temp, $fname );
 303
 304                 // Pull all records from the second, streaming database connection.
 305                 $sourceFields = array_keys( array_filter( $fields,
 306                         create_function( '$x', 'return $x !== MW_UPGRADE_NULL;' ) ) );
 307                 $result = $this->dbr->select( $name,
 308                         $sourceFields,
 309                         '',
 310                         $fname );
 311
 312                 $add = array();
 313                 while( $row = $this->dbr->fetchObject( $result ) ) {
 314                         $copy = array();
 315                         foreach( $fields as $field => $source ) {
 316                                 if( $source === MW_UPGRADE_COPY ) {
 317                                         $copy[$field] = $row->$field;
 318                                 } elseif( $source === MW_UPGRADE_ENCODE ) {
 319                                         $copy[$field] = $this->conv( $row->$field );
 320                                 } elseif( $source === MW_UPGRADE_NULL ) {
 321                                         $copy[$field] = null;
 322                                 } else {
 323                                         $this->log( "Unknown field copy type: $field => $source" );
 324                                 }
 325                         }
 326                         if( is_callable( $callback ) ) {
 327                                 $copy = call_user_func( $callback, $row, $copy );
 328                         }
 329                         $add[] = $copy;
 330                         $this->addChunk( $add );
 331                 }
 332                 $this->lastChunk( $add );
 333                 $this->dbr->freeResult( $result );
 334
 335                 $this->log( "Done converting $name." );
 336                 $this->cleanupSwaps[] = $name;
 337         }
 338
 339         function upgradePage() {
 340                 $fname = "FiveUpgrade::upgradePage";
 341                 $chunksize = 100;
 342
 343                 if( $this->dbw->tableExists( 'page' ) ) {
 344                         $this->log( 'Page table already exists; aborting.' );
 345                         die( -1 );
 346                 }
 347
 348                 $this->log( "Checking cur table for unique title index and applying if necessary" );
 349                 checkDupes( true );
 350
 351                 $this->log( "...converting from cur/old to page/revision/text DB structure." );
 352
 353                 extract( $this->dbw->tableNames( 'cur', 'old', 'page', 'revision', 'text' ) );
 354
 355                 $this->log( "Creating page and revision tables..." );
 356                 $this->dbw->query("CREATE TABLE $page (
 357                         page_id int(8) unsigned NOT NULL auto_increment,
 358                         page_namespace int NOT NULL,
 359                         page_title varchar(255) binary NOT NULL,
 360                         page_restrictions tinyblob NOT NULL default '',
 361                         page_counter bigint(20) unsigned NOT NULL default '0',
 362                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 363                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 364                         page_random real unsigned NOT NULL,
 365                         page_touched char(14) binary NOT NULL default '',
 366                         page_latest int(8) unsigned NOT NULL,
 367                         page_len int(8) unsigned NOT NULL,
 368
 369                         PRIMARY KEY page_id (page_id),
 370                         UNIQUE INDEX name_title (page_namespace,page_title),
 371                         INDEX (page_random),
 372                         INDEX (page_len)
 373                         ) TYPE=InnoDB", $fname );
 374                 $this->dbw->query("CREATE TABLE $revision (
 375                         rev_id int(8) unsigned NOT NULL auto_increment,
 376                         rev_page int(8) unsigned NOT NULL,
 377                         rev_text_id int(8) unsigned NOT NULL,
 378                         rev_comment tinyblob NOT NULL default '',
 379                         rev_user int(5) unsigned NOT NULL default '0',
 380                         rev_user_text varchar(255) binary NOT NULL default '',
 381                         rev_timestamp char(14) binary NOT NULL default '',
 382                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 383                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 384
 385                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 386                         UNIQUE INDEX rev_id (rev_id),
 387                         INDEX rev_timestamp (rev_timestamp),
 388                         INDEX page_timestamp (rev_page,rev_timestamp),
 389                         INDEX user_timestamp (rev_user,rev_timestamp),
 390                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 391                         ) TYPE=InnoDB", $fname );
 392
 393                 $maxold = IntVal( $this->dbw->selectField( 'old', 'max(old_id)', '', $fname ) );
 394                 $this->log( "Last old record is {$maxold}" );
 395
 396                 global $wgLegacySchemaConversion;
 397                 if( $wgLegacySchemaConversion ) {
 398                         // Create HistoryBlobCurStub entries.
 399                         // Text will be pulled from the leftover 'cur' table at runtime.
 400                         echo "......Moving metadata from cur; using blob references to text in cur table.\n";
 401                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 402                         $cur_flags = "'object'";
 403                 } else {
 404                         // Copy all cur text in immediately: this may take longer but avoids
 405                         // having to keep an extra table around.
 406                         echo "......Moving text from cur.\n";
 407                         $cur_text = 'cur_text';
 408                         $cur_flags = "''";
 409                 }
 410
 411                 $maxcur = $this->dbw->selectField( 'cur', 'max(cur_id)', '', $fname );
 412                 $this->log( "Last cur entry is $maxcur" );
 413
 414                 /**
 415                  * Copy placeholder records for each page's current version into old
 416                  * Don't do any conversion here; text records are converted at runtime
 417                  * based on the flags (and may be originally binary!) while the meta
 418                  * fields will be converted in the old -> rev and cur -> page steps.
 419                  */
 420                 $this->setChunkScale( $chunksize, $maxcur, 'old', $fname );
 421                 $result = $this->dbr->query(
 422                         "SELECT cur_id, cur_namespace, cur_title, $cur_text AS text, cur_comment,
 423                         cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags AS flags
 424                         FROM $cur
 425                         ORDER BY cur_id", $fname );
 426                 $add = array();
 427                 while( $row = $this->dbr->fetchObject( $result ) ) {
 428                         $add[] = array(
 429                                 'old_namespace'  => $row->cur_namespace,
 430                                 'old_title'      => $row->cur_title,
 431                                 'old_text'       => $row->text,
 432                                 'old_comment'    => $row->cur_comment,
 433                                 'old_user'       => $row->cur_user,
 434                                 'old_user_text'  => $row->cur_user_text,
 435                                 'old_timestamp'  => $row->cur_timestamp,
 436                                 'old_minor_edit' => $row->cur_minor_edit,
 437                                 'old_flags'      => $row->flags );
 438                         $this->addChunk( $add, $row->cur_id );
 439                 }
 440                 $this->lastChunk( $add );
 441                 $this->dbr->freeResult( $result );
 442
 443                 /**
 444                  * Copy revision metadata from old into revision.
 445                  * We'll also do UTF-8 conversion of usernames and comments.
 446                  */
 447                 #$newmaxold = $this->dbw->selectField( 'old', 'max(old_id)', '', $fname );
 448                 #$this->setChunkScale( $chunksize, $newmaxold, 'revision', $fname );
 449                 $countold = $this->dbw->selectField( 'old', 'count(old_id)', '', $fname );
 450                 $this->setChunkScale( $chunksize, $countold, 'revision', $fname );
 451
 452                 $this->log( "......Setting up revision table." );
 453                 $result = $this->dbr->query(
 454                         "SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 455                         old_timestamp, old_minor_edit
 456                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title",
 457                         $fname );
 458
 459                 $add = array();
 460                 while( $row = $this->dbr->fetchObject( $result ) ) {
 461                         $add[] = array(
 462                                 'rev_id'         =>              $row->old_id,
 463                                 'rev_page'       =>              $row->cur_id,
 464                                 'rev_text_id'    =>              $row->old_id,
 465                                 'rev_comment'    => $this->conv( $row->old_comment ),
 466                                 'rev_user'       =>              $row->old_user,
 467                                 'rev_user_text'  => $this->conv( $row->old_user_text ),
 468                                 'rev_timestamp'  =>              $row->old_timestamp,
 469                                 'rev_minor_edit' =>              $row->old_minor_edit );
 470                         $this->addChunk( $add );
 471                 }
 472                 $this->lastChunk( $add );
 473                 $this->dbr->freeResult( $result );
 474
 475
 476                 /**
 477                  * Copy page metadata from cur into page.
 478                  * We'll also do UTF-8 conversion of titles.
 479                  */
 480                 $this->log( "......Setting up page table." );
 481                 $this->setChunkScale( $chunksize, $maxcur, 'page', $fname );
 482                 $result = $this->dbr->query( "
 483                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 484                                 cur_random, cur_touched, rev_id, LENGTH(cur_text) AS len
 485                         FROM $cur,$revision
 486                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}
 487                         ORDER BY cur_id", $fname );
 488                 $add = array();
 489                 while( $row = $this->dbr->fetchObject( $result ) ) {
 490                         $add[] = array(
 491                                 'page_id'           =>              $row->cur_id,
 492                                 'page_namespace'    =>              $row->cur_namespace,
 493                                 'page_title'        => $this->conv( $row->cur_title ),
 494                                 'page_restrictions' =>              $row->cur_restrictions,
 495                                 'page_counter'      =>              $row->cur_counter,
 496                                 'page_is_redirect'  =>              $row->cur_is_redirect,
 497                                 'page_is_new'       =>              $row->cur_is_new,
 498                                 'page_random'       =>              $row->cur_random,
 499                                 'page_touched'      =>              $this->dbw->timestamp(),
 500                                 'page_latest'       =>              $row->rev_id,
 501                                 'page_len'          =>              $row->len );
 502                         $this->addChunk( $add, $row->cur_id );
 503                 }
 504                 $this->lastChunk( $add );
 505                 $this->dbr->freeResult( $result );
 506
 507                 $this->log( "...done with cur/old -> page/revision." );
 508         }
 509
 510         function upgradeLinks() {
 511                 $fname = 'FiveUpgrade::upgradeLinks';
 512                 $chunksize = 200;
 513                 extract( $this->dbw->tableNames( 'links', 'brokenlinks', 'pagelinks', 'page' ) );
 514
 515                 $this->log( 'Creating pagelinks table...' );
 516                 $this->dbw->query( "
 517 CREATE TABLE $pagelinks (
 518   -- Key to the page_id of the page containing the link.
 519   pl_from int(8) unsigned NOT NULL default '0',
 520
 521   -- Key to page_namespace/page_title of the target page.
 522   -- The target page may or may not exist, and due to renames
 523   -- and deletions may refer to different page records as time
 524   -- goes by.
 525   pl_namespace int NOT NULL default '0',
 526   pl_title varchar(255) binary NOT NULL default '',
 527
 528   UNIQUE KEY pl_from(pl_from,pl_namespace,pl_title),
 529   KEY (pl_namespace,pl_title)
 530
 531 ) TYPE=InnoDB" );
 532
 533                 $this->log( 'Importing live links -> pagelinks' );
 534                 $nlinks = $this->dbw->selectField( 'links', 'count(*)', '', $fname );
 535                 if( $nlinks ) {
 536                         $this->setChunkScale( $chunksize, $nlinks, 'pagelinks', $fname );
 537                         $result = $this->dbr->query( "
 538                           SELECT l_from,page_namespace,page_title
 539                                 FROM $links, $page
 540                                 WHERE l_to=page_id", $fname );
 541                         $add = array();
 542                         while( $row = $this->dbr->fetchObject( $result ) ) {
 543                                 $add[] = array(
 544                                         'pl_from'      => $row->l_from,
 545                                         'pl_namespace' => $row->page_namespace,
 546                                         'pl_title'     => $row->page_title );
 547                                 $this->addChunk( $add );
 548                         }
 549                         $this->lastChunk( $add );
 550                 } else {
 551                         $this->log( 'no links!' );
 552                 }
 553
 554                 $this->log( 'Importing brokenlinks -> pagelinks' );
 555                 $nbrokenlinks = $this->dbw->selectField( 'brokenlinks', 'count(*)', '', $fname );
 556                 if( $nbrokenlinks ) {
 557                         $this->setChunkScale( $chunksize, $nbrokenlinks, 'pagelinks', $fname );
 558                         $this->chunkOptions = array( 'IGNORE' );
 559                         $result = $this->dbr->query(
 560                                 "SELECT bl_from, bl_to FROM $brokenlinks",
 561                                 $fname );
 562                         $add = array();
 563                         while( $row = $this->dbr->fetchObject( $result ) ) {
 564                                 $pagename = $this->conv( $row->bl_to );
 565                                 $title = Title::newFromText( $pagename );
 566                                 if( is_null( $title ) ) {
 567                                         $this->log( "** invalid brokenlink: $row->bl_from -> '$pagename' (converted from '$row->bl_to')" );
 568                                 } else {
 569                                         $add[] = array(
 570                                                 'pl_from'      => $row->bl_from,
 571                                                 'pl_namespace' => $title->getNamespace(),
 572                                                 'pl_title'     => $title->getDBkey() );
 573                                         $this->addChunk( $add );
 574                                 }
 575                         }
 576                         $this->lastChunk( $add );
 577                 } else {
 578                         $this->log( 'no brokenlinks!' );
 579                 }
 580
 581                 $this->log( 'Done with links.' );
 582         }
 583
 584         function upgradeUser() {
 585                 // Apply unique index, if necessary:
 586                 $duper = new UserDupes( $this->dbw );
 587                 if( $duper->hasUniqueIndex() ) {
 588                         $this->log( "Already have unique user_name index." );
 589                 } else {
 590                         $this->log( "Clearing user duplicates..." );
 591                         if( !$duper->clearDupes() ) {
 592                                 $this->log( "WARNING: Duplicate user accounts, may explode!" );
 593                         }
 594                 }
 595
 596                 $tabledef = <<<END
 597 CREATE TABLE $1 (
 598   user_id int(5) unsigned NOT NULL auto_increment,
 599   user_name varchar(255) binary NOT NULL default '',
 600   user_real_name varchar(255) binary NOT NULL default '',
 601   user_password tinyblob NOT NULL default '',
 602   user_newpassword tinyblob NOT NULL default '',
 603   user_email tinytext NOT NULL default '',
 604   user_options blob NOT NULL default '',
 605   user_touched char(14) binary NOT NULL default '',
 606   user_token char(32) binary NOT NULL default '',
 607   user_email_authenticated CHAR(14) BINARY,
 608   user_email_token CHAR(32) BINARY,
 609   user_email_token_expires CHAR(14) BINARY,
 610
 611   PRIMARY KEY user_id (user_id),
 612   UNIQUE INDEX user_name (user_name),
 613   INDEX (user_email_token)
 614
 615 ) TYPE=InnoDB
 616 END;
 617                 $fields = array(
 618                         'user_id'                  => MW_UPGRADE_COPY,
 619                         'user_name'                => MW_UPGRADE_ENCODE,
 620                         'user_real_name'           => MW_UPGRADE_ENCODE,
 621                         'user_password'            => MW_UPGRADE_COPY,
 622                         'user_newpassword'         => MW_UPGRADE_COPY,
 623                         'user_email'               => MW_UPGRADE_ENCODE,
 624                         'user_options'             => MW_UPGRADE_ENCODE,
 625                         'user_touched'             => MW_UPGRADE_CALLBACK,
 626                         'user_token'               => MW_UPGRADE_COPY,
 627                         'user_email_authenticated' => MW_UPGRADE_CALLBACK,
 628                         'user_email_token'         => MW_UPGRADE_NULL,
 629                         'user_email_token_expires' => MW_UPGRADE_NULL );
 630                 $this->copyTable( 'user', $tabledef, $fields,
 631                         array( &$this, 'userCallback' ) );
 632         }
 633
 634         function userCallback( $row, $copy ) {
 635                 $now = $this->dbw->timestamp();
 636                 $copy['user_touched'] = $now;
 637                 $copy['user_email_authenticated'] = $this->emailAuth ? $now : null;
 638                 return $copy;
 639         }
 640
 641         function upgradeImage() {
 642                 $tabledef = <<<END
 643 CREATE TABLE $1 (
 644   img_name varchar(255) binary NOT NULL default '',
 645   img_size int(8) unsigned NOT NULL default '0',
 646   img_width int(5)  NOT NULL default '0',
 647   img_height int(5)  NOT NULL default '0',
 648   img_metadata mediumblob NOT NULL,
 649   img_bits int(3)  NOT NULL default '0',
 650   img_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
 651   img_major_mime ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") NOT NULL default "unknown",
 652   img_minor_mime varchar(32) NOT NULL default "unknown",
 653   img_description tinyblob NOT NULL default '',
 654   img_user int(5) unsigned NOT NULL default '0',
 655   img_user_text varchar(255) binary NOT NULL default '',
 656   img_timestamp char(14) binary NOT NULL default '',
 657
 658   PRIMARY KEY img_name (img_name),
 659   INDEX img_size (img_size),
 660   INDEX img_timestamp (img_timestamp)
 661 ) TYPE=InnoDB
 662 END;
 663                 $fields = array(
 664                         'img_name'        => MW_UPGRADE_ENCODE,
 665                         'img_size'        => MW_UPGRADE_COPY,
 666                         'img_width'       => MW_UPGRADE_CALLBACK,
 667                         'img_height'      => MW_UPGRADE_CALLBACK,
 668                         'img_metadata'    => MW_UPGRADE_CALLBACK,
 669                         'img_bits'        => MW_UPGRADE_CALLBACK,
 670                         'img_media_type'  => MW_UPGRADE_CALLBACK,
 671                         'img_major_mime'  => MW_UPGRADE_CALLBACK,
 672                         'img_minor_mime'  => MW_UPGRADE_CALLBACK,
 673                         'img_description' => MW_UPGRADE_ENCODE,
 674                         'img_user'        => MW_UPGRADE_COPY,
 675                         'img_user_text'   => MW_UPGRADE_ENCODE,
 676                         'img_timestamp'   => MW_UPGRADE_COPY );
 677                 $this->copyTable( 'image', $tabledef, $fields,
 678                         array( &$this, 'imageCallback' ) );
 679         }
 680
 681         function imageCallback( $row, $copy ) {
 682                 // Fill in the new image info fields
 683                 $info = $this->imageInfo( $row->img_name );
 684
 685                 $copy['img_width'     ] = $info['width'];
 686                 $copy['img_height'    ] = $info['height'];
 687                 $copy['img_metadata'  ] = ""; // loaded on-demand
 688                 $copy['img_bits'      ] = $info['bits'];
 689                 $copy['img_media_type'] = $info['media'];
 690                 $copy['img_major_mime'] = $info['major'];
 691                 $copy['img_minor_mime'] = $info['minor'];
 692
 693                 // If doing UTF8 conversion the file must be renamed
 694                 $this->renameFile( $row->img_name, 'wfImageDir' );
 695
 696                 return $copy;
 697         }
 698
 699         function imageInfo( $name, $subdirCallback='wfImageDir', $basename = null ) {
 700                 if( is_null( $basename ) ) $basename = $name;
 701                 $dir = call_user_func( $subdirCallback, $basename );
 702                 $filename = $dir . '/' . $name;
 703                 $info = array(
 704                         'width'  => 0,
 705                         'height' => 0,
 706                         'bits'   => 0,
 707                         'media'  => '',
 708                         'major'  => '',
 709                         'minor'  => '' );
 710
 711                 $magic =& wfGetMimeMagic();
 712                 $mime = $magic->guessMimeType( $filename, true );
 713                 list( $info['major'], $info['minor'] ) = explode( '/', $mime );
 714
 715                 $info['media'] = $magic->getMediaType( $filename, $mime );
 716
 717                 # Height and width
 718                 $gis = false;
 719                 if( $mime == 'image/svg' ) {
 720                         $gis = wfGetSVGsize( $this->imagePath );
 721                 } elseif( $magic->isPHPImageType( $mime ) ) {
 722                         $gis = getimagesize( $filename );
 723                 } else {
 724                         $this->log( "Surprising mime type: $mime" );
 725                 }
 726                 if( $gis ) {
 727                         $info['width' ] = $gis[0];
 728                         $info['height'] = $gis[1];
 729                 }
 730                 if( isset( $gis['bits'] ) ) {
 731                         $info['bits'] = $gis['bits'];
 732                 }
 733
 734                 return $info;
 735         }
 736
 737
 738         /**
 739          * Truncate a table.
 740          * @param string $table The table name to be truncated
 741          */
 742         function clearTable( $table ) {
 743                 print "Clearing $table...\n";
 744                 $tableName = $this->db->tableName( $table );
 745                 $this->db->query( 'TRUNCATE $tableName' );
 746         }
 747
 748         /**
 749          * Rename a given image or archived image file to the converted filename,
 750          * leaving a symlink for URL compatibility.
 751          *
 752          * @param string $oldname pre-conversion filename
 753          * @param string $basename pre-conversion base filename for dir hashing, if an archive
 754          * @access private
 755          */
 756         function renameFile( $oldname, $subdirCallback='wfImageDir', $basename=null ) {
 757                 $newname = $this->conv( $oldname );
 758                 if( $newname == $oldname ) {
 759                         // No need to rename; another field triggered this row.
 760                         return;
 761                 }
 762
 763                 if( is_null( $basename ) ) $basename = $oldname;
 764                 $ubasename = $this->conv( $basename );
 765                 $oldpath = call_user_func( $subdirCallback, $basename ) . '/' . $oldname;
 766                 $newpath = call_user_func( $subdirCallback, $ubasename ) . '/' . $newname;
 767
 768                 $this->log( "$oldpath -> $newpath" );
 769                 if( rename( $oldpath, $newpath ) ) {
 770                         $relpath = $this->relativize( $newpath, dirname( $oldpath ) );
 771                         if( !symlink( $relpath, $oldpath ) ) {
 772                                 $this->log( "... symlink failed!" );
 773                         }
 774                 } else {
 775                         $this->log( "... rename failed!" );
 776                 }
 777         }
 778
 779         /**
 780          * Generate a relative path name to the given file.
 781          * Assumes Unix-style paths, separators, and semantics.
 782          *
 783          * @param string $path Absolute destination path including target filename
 784          * @param string $from Absolute source path, directory only
 785          * @return string
 786          * @access private
 787          * @static
 788          */
 789         function relativize( $path, $from ) {
 790                 $pieces  = explode( '/', dirname( $path ) );
 791                 $against = explode( '/', $from );
 792
 793                 // Trim off common prefix
 794                 while( count( $pieces ) && count( $against )
 795                         && $pieces[0] == $against[0] ) {
 796                         array_shift( $pieces );
 797                         array_shift( $against );
 798                 }
 799
 800                 // relative dots to bump us to the parent
 801                 while( count( $against ) ) {
 802                         array_unshift( $pieces, '..' );
 803                         array_shift( $against );
 804                 }
 805
 806                 array_push( $pieces, basename( $path ) );
 807
 808                 return implode( '/', $pieces );
 809         }
 810
 811         function upgradeOldImage() {
 812                 $tabledef = <<<END
 813 CREATE TABLE $1 (
 814   -- Base filename: key to image.img_name
 815   oi_name varchar(255) binary NOT NULL default '',
 816
 817   -- Filename of the archived file.
 818   -- This is generally a timestamp and '!' prepended to the base name.
 819   oi_archive_name varchar(255) binary NOT NULL default '',
 820
 821   -- Other fields as in image...
 822   oi_size int(8) unsigned NOT NULL default 0,
 823   oi_width int(5) NOT NULL default 0,
 824   oi_height int(5) NOT NULL default 0,
 825   oi_bits int(3) NOT NULL default 0,
 826   oi_description tinyblob NOT NULL default '',
 827   oi_user int(5) unsigned NOT NULL default '0',
 828   oi_user_text varchar(255) binary NOT NULL default '',
 829   oi_timestamp char(14) binary NOT NULL default '',
 830
 831   INDEX oi_name (oi_name(10))
 832
 833 ) TYPE=InnoDB;
 834 END;
 835                 $fields = array(
 836                         'oi_name'         => MW_UPGRADE_ENCODE,
 837                         'oi_archive_name' => MW_UPGRADE_ENCODE,
 838                         'oi_size'         => MW_UPGRADE_COPY,
 839                         'oi_width'        => MW_UPGRADE_CALLBACK,
 840                         'oi_height'       => MW_UPGRADE_CALLBACK,
 841                         'oi_bits'         => MW_UPGRADE_CALLBACK,
 842                         'oi_description'  => MW_UPGRADE_ENCODE,
 843                         'oi_user'         => MW_UPGRADE_COPY,
 844                         'oi_user_text'    => MW_UPGRADE_ENCODE,
 845                         'oi_timestamp'    => MW_UPGRADE_COPY );
 846                 $this->copyTable( 'oldimage', $tabledef, $fields,
 847                         array( &$this, 'oldimageCallback' ) );
 848         }
 849
 850         function oldimageCallback( $row, $copy ) {
 851                 // Fill in the new image info fields
 852                 $info = $this->imageInfo( $row->oi_archive_name, 'wfImageArchiveDir', $row->oi_name );
 853                 $copy['oi_width' ] = $info['width' ];
 854                 $copy['oi_height'] = $info['height'];
 855                 $copy['oi_bits'  ] = $info['bits'  ];
 856
 857                 // If doing UTF8 conversion the file must be renamed
 858                 $this->renameFile( $row->oi_archive_name, 'wfImageArchiveDir', $row->oi_name );
 859
 860                 return $copy;
 861         }
 862
 863
 864         function upgradeWatchlist() {
 865                 $fname = 'FiveUpgrade::upgradeWatchlist';
 866                 $chunksize = 100;
 867
 868                 extract( $this->dbw->tableNames( 'watchlist', 'watchlist_temp' ) );
 869
 870                 $this->log( 'Migrating watchlist table to watchlist_temp...' );
 871                 $this->dbw->query(
 872 "CREATE TABLE $watchlist_temp (
 873   -- Key to user_id
 874   wl_user int(5) unsigned NOT NULL,
 875
 876   -- Key to page_namespace/page_title
 877   -- Note that users may watch patches which do not exist yet,
 878   -- or existed in the past but have been deleted.
 879   wl_namespace int NOT NULL default '0',
 880   wl_title varchar(255) binary NOT NULL default '',
 881
 882   -- Timestamp when user was last sent a notification e-mail;
 883   -- cleared when the user visits the page.
 884   -- FIXME: add proper null support etc
 885   wl_notificationtimestamp varchar(14) binary NOT NULL default '0',
 886
 887   UNIQUE KEY (wl_user, wl_namespace, wl_title),
 888   KEY namespace_title (wl_namespace,wl_title)
 889
 890 ) TYPE=InnoDB;", $fname );
 891
 892                 // Fix encoding for Latin-1 upgrades, add some fields,
 893                 // and double article to article+talk pairs
 894                 $numwatched = $this->dbw->selectField( 'watchlist', 'count(*)', '', $fname );
 895
 896                 $this->setChunkScale( $chunksize, $numwatched * 2, 'watchlist_temp', $fname );
 897                 $result = $this->dbr->select( 'watchlist',
 898                         array(
 899                                 'wl_user',
 900                                 'wl_namespace',
 901                                 'wl_title' ),
 902                         '',
 903                         $fname );
 904
 905                 $add = array();
 906                 while( $row = $this->dbr->fetchObject( $result ) ) {
 907                         $now = $this->dbw->timestamp();
 908                         $add[] = array(
 909                                 'wl_user'      =>                        $row->wl_user,
 910                                 'wl_namespace' => Namespace::getSubject( $row->wl_namespace ),
 911                                 'wl_title'     =>           $this->conv( $row->wl_title ),
 912                                 'wl_notificationtimestamp' =>            '0' );
 913                         $this->addChunk( $add );
 914
 915                         $add[] = array(
 916                                 'wl_user'      =>                        $row->wl_user,
 917                                 'wl_namespace' =>    Namespace::getTalk( $row->wl_namespace ),
 918                                 'wl_title'     =>           $this->conv( $row->wl_title ),
 919                                 'wl_notificationtimestamp' =>            '0' );
 920                         $this->addChunk( $add );
 921                 }
 922                 $this->lastChunk( $add );
 923                 $this->dbr->freeResult( $result );
 924
 925                 $this->log( 'Done converting watchlist.' );
 926                 $this->cleanupSwaps[] = 'watchlist';
 927         }
 928
 929         function upgradeLogging() {
 930                 $tabledef = <<<END
 931 CREATE TABLE $1 (
 932   -- Symbolic keys for the general log type and the action type
 933   -- within the log. The output format will be controlled by the
 934   -- action field, but only the type controls categorization.
 935   log_type char(10) NOT NULL default '',
 936   log_action char(10) NOT NULL default '',
 937
 938   -- Timestamp. Duh.
 939   log_timestamp char(14) NOT NULL default '19700101000000',
 940
 941   -- The user who performed this action; key to user_id
 942   log_user int unsigned NOT NULL default 0,
 943
 944   -- Key to the page affected. Where a user is the target,
 945   -- this will point to the user page.
 946   log_namespace int NOT NULL default 0,
 947   log_title varchar(255) binary NOT NULL default '',
 948
 949   -- Freeform text. Interpreted as edit history comments.
 950   log_comment varchar(255) NOT NULL default '',
 951
 952   -- LF separated list of miscellaneous parameters
 953   log_params blob NOT NULL default '',
 954
 955   KEY type_time (log_type, log_timestamp),
 956   KEY user_time (log_user, log_timestamp),
 957   KEY page_time (log_namespace, log_title, log_timestamp)
 958
 959 ) TYPE=InnoDB
 960 END;
 961                 $fields = array(
 962                         'log_type'      => MW_UPGRADE_COPY,
 963                         'log_action'    => MW_UPGRADE_COPY,
 964                         'log_timestamp' => MW_UPGRADE_COPY,
 965                         'log_user'      => MW_UPGRADE_COPY,
 966                         'log_namespace' => MW_UPGRADE_COPY,
 967                         'log_title'     => MW_UPGRADE_ENCODE,
 968                         'log_comment'   => MW_UPGRADE_ENCODE,
 969                         'log_params'    => MW_UPGRADE_ENCODE );
 970                 $this->copyTable( 'logging', $tabledef, $fields );
 971         }
 972
 973         function upgradeArchive() {
 974                 $tabledef = <<<END
 975 CREATE TABLE $1 (
 976   ar_namespace int NOT NULL default '0',
 977   ar_title varchar(255) binary NOT NULL default '',
 978   ar_text mediumblob NOT NULL default '',
 979
 980   ar_comment tinyblob NOT NULL default '',
 981   ar_user int(5) unsigned NOT NULL default '0',
 982   ar_user_text varchar(255) binary NOT NULL,
 983   ar_timestamp char(14) binary NOT NULL default '',
 984   ar_minor_edit tinyint(1) NOT NULL default '0',
 985
 986   ar_flags tinyblob NOT NULL default '',
 987
 988   ar_rev_id int(8) unsigned,
 989   ar_text_id int(8) unsigned,
 990
 991   KEY name_title_timestamp (ar_namespace,ar_title,ar_timestamp)
 992
 993 ) TYPE=InnoDB
 994 END;
 995                 $fields = array(
 996                         'ar_namespace'  => MW_UPGRADE_COPY,
 997                         'ar_title'      => MW_UPGRADE_ENCODE,
 998                         'ar_text'       => MW_UPGRADE_COPY,
 999                         'ar_comment'    => MW_UPGRADE_ENCODE,
1000                         'ar_user'       => MW_UPGRADE_COPY,
1001                         'ar_user_text'  => MW_UPGRADE_ENCODE,
1002                         'ar_timestamp'  => MW_UPGRADE_COPY,
1003                         'ar_minor_edit' => MW_UPGRADE_COPY,
1004                         'ar_flags'      => MW_UPGRADE_COPY,
1005                         'ar_rev_id'     => MW_UPGRADE_NULL,
1006                         'ar_text_id'    => MW_UPGRADE_NULL );
1007                 $this->copyTable( 'archive', $tabledef, $fields );
1008         }
1009
1010         function upgradeImagelinks() {
1011                 global $wgUseLatin1;
1012                 if( $wgUseLatin1 ) {
1013                         $tabledef = <<<END
1014 CREATE TABLE $1 (
1015   -- Key to page_id of the page containing the image / media link.
1016   il_from int(8) unsigned NOT NULL default '0',
1017
1018   -- Filename of target image.
1019   -- This is also the page_title of the file's description page;
1020   -- all such pages are in namespace 6 (NS_IMAGE).
1021   il_to varchar(255) binary NOT NULL default '',
1022
1023   UNIQUE KEY il_from(il_from,il_to),
1024   KEY (il_to)
1025
1026 ) TYPE=InnoDB
1027 END;
1028                         $fields = array(
1029                                 'il_from' => MW_UPGRADE_COPY,
1030                                 'il_to'   => MW_UPGRADE_ENCODE );
1031                         $this->copyTable( 'imagelinks', $tabledef, $fields );
1032                 }
1033         }
1034
1035         function upgradeCategorylinks() {
1036                 global $wgUseLatin1;
1037                 if( $wgUseLatin1 ) {
1038                         $tabledef = <<<END
1039 CREATE TABLE $1 (
1040   cl_from int(8) unsigned NOT NULL default '0',
1041   cl_to varchar(255) binary NOT NULL default '',
1042   cl_sortkey varchar(86) binary NOT NULL default '',
1043   cl_timestamp timestamp NOT NULL,
1044
1045   UNIQUE KEY cl_from(cl_from,cl_to),
1046   KEY cl_sortkey(cl_to,cl_sortkey),
1047   KEY cl_timestamp(cl_to,cl_timestamp)
1048 ) TYPE=InnoDB
1049 END;
1050                         $fields = array(
1051                                 'cl_from'      => MW_UPGRADE_COPY,
1052                                 'cl_to'        => MW_UPGRADE_ENCODE,
1053                                 'cl_sortkey'   => MW_UPGRADE_ENCODE,
1054                                 'cl_timestamp' => MW_UPGRADE_COPY );
1055                         $this->copyTable( 'categorylinks', $tabledef, $fields );
1056                 }
1057         }
1058
1059         function upgradeIpblocks() {
1060                 global $wgUseLatin1;
1061                 if( $wgUseLatin1 ) {
1062                         $tabledef = <<<END
1063 CREATE TABLE $1 (
1064   ipb_id int(8) NOT NULL auto_increment,
1065   ipb_address varchar(40) binary NOT NULL default '',
1066   ipb_user int(8) unsigned NOT NULL default '0',
1067   ipb_by int(8) unsigned NOT NULL default '0',
1068   ipb_reason tinyblob NOT NULL default '',
1069   ipb_timestamp char(14) binary NOT NULL default '',
1070   ipb_auto tinyint(1) NOT NULL default '0',
1071   ipb_expiry char(14) binary NOT NULL default '',
1072
1073   PRIMARY KEY ipb_id (ipb_id),
1074   INDEX ipb_address (ipb_address),
1075   INDEX ipb_user (ipb_user)
1076
1077 ) TYPE=InnoDB
1078 END;
1079                         $fields = array(
1080                                 'ipb_id'        => MW_UPGRADE_COPY,
1081                                 'ipb_address'   => MW_UPGRADE_COPY,
1082                                 'ipb_user'      => MW_UPGRADE_COPY,
1083                                 'ipb_by'        => MW_UPGRADE_COPY,
1084                                 'ipb_reason'    => MW_UPGRADE_ENCODE,
1085                                 'ipb_timestamp' => MW_UPGRADE_COPY,
1086                                 'ipb_auto'      => MW_UPGRADE_COPY,
1087                                 'ipb_expiry'    => MW_UPGRADE_COPY );
1088                         $this->copyTable( 'ipblocks', $tabledef, $fields );
1089                 }
1090         }
1091
1092         function upgradeRecentchanges() {
1093                 // There's a format change in the namespace field
1094                 $tabledef = <<<END
1095 CREATE TABLE $1 (
1096   rc_id int(8) NOT NULL auto_increment,
1097   rc_timestamp varchar(14) binary NOT NULL default '',
1098   rc_cur_time varchar(14) binary NOT NULL default '',
1099
1100   rc_user int(10) unsigned NOT NULL default '0',
1101   rc_user_text varchar(255) binary NOT NULL default '',
1102
1103   rc_namespace int NOT NULL default '0',
1104   rc_title varchar(255) binary NOT NULL default '',
1105
1106   rc_comment varchar(255) binary NOT NULL default '',
1107   rc_minor tinyint(3) unsigned NOT NULL default '0',
1108
1109   rc_bot tinyint(3) unsigned NOT NULL default '0',
1110   rc_new tinyint(3) unsigned NOT NULL default '0',
1111
1112   rc_cur_id int(10) unsigned NOT NULL default '0',
1113   rc_this_oldid int(10) unsigned NOT NULL default '0',
1114   rc_last_oldid int(10) unsigned NOT NULL default '0',
1115
1116   rc_type tinyint(3) unsigned NOT NULL default '0',
1117   rc_moved_to_ns tinyint(3) unsigned NOT NULL default '0',
1118   rc_moved_to_title varchar(255) binary NOT NULL default '',
1119
1120   rc_patrolled tinyint(3) unsigned NOT NULL default '0',
1121
1122   rc_ip char(15) NOT NULL default '',
1123
1124   PRIMARY KEY rc_id (rc_id),
1125   INDEX rc_timestamp (rc_timestamp),
1126   INDEX rc_namespace_title (rc_namespace, rc_title),
1127   INDEX rc_cur_id (rc_cur_id),
1128   INDEX new_name_timestamp(rc_new,rc_namespace,rc_timestamp),
1129   INDEX rc_ip (rc_ip)
1130
1131 ) TYPE=InnoDB
1132 END;
1133                 $fields = array(
1134                         'rc_id'             => MW_UPGRADE_COPY,
1135                         'rc_timestamp'      => MW_UPGRADE_COPY,
1136                         'rc_cur_time'       => MW_UPGRADE_COPY,
1137                         'rc_user'           => MW_UPGRADE_COPY,
1138                         'rc_user_text'      => MW_UPGRADE_ENCODE,
1139                         'rc_namespace'      => MW_UPGRADE_COPY,
1140                         'rc_title'          => MW_UPGRADE_ENCODE,
1141                         'rc_comment'        => MW_UPGRADE_ENCODE,
1142                         'rc_minor'          => MW_UPGRADE_COPY,
1143                         'rc_bot'            => MW_UPGRADE_COPY,
1144                         'rc_new'            => MW_UPGRADE_COPY,
1145                         'rc_cur_id'         => MW_UPGRADE_COPY,
1146                         'rc_this_oldid'     => MW_UPGRADE_COPY,
1147                         'rc_last_oldid'     => MW_UPGRADE_COPY,
1148                         'rc_type'           => MW_UPGRADE_COPY,
1149                         'rc_moved_to_ns'    => MW_UPGRADE_COPY,
1150                         'rc_moved_to_title' => MW_UPGRADE_ENCODE,
1151                         'rc_patrolled'      => MW_UPGRADE_COPY,
1152                         'rc_ip'             => MW_UPGRADE_COPY );
1153                 $this->copyTable( 'recentchanges', $tabledef, $fields );
1154         }
1155
1156         function upgradeQuerycache() {
1157                 // There's a format change in the namespace field
1158                 $tabledef = <<<END
1159 CREATE TABLE $1 (
1160   -- A key name, generally the base name of of the special page.
1161   qc_type char(32) NOT NULL,
1162
1163   -- Some sort of stored value. Sizes, counts...
1164   qc_value int(5) unsigned NOT NULL default '0',
1165
1166   -- Target namespace+title
1167   qc_namespace int NOT NULL default '0',
1168   qc_title char(255) binary NOT NULL default '',
1169
1170   KEY (qc_type,qc_value)
1171
1172 ) TYPE=InnoDB
1173 END;
1174                 $fields = array(
1175                         'qc_type'      => MW_UPGRADE_COPY,
1176                         'qc_value'     => MW_UPGRADE_COPY,
1177                         'qc_namespace' => MW_UPGRADE_COPY,
1178                         'qc_title'     => MW_UPGRADE_ENCODE );
1179                 $this->copyTable( 'querycache', $tabledef, $fields );
1180         }
1181
1182         /**
1183          * Rename all our temporary tables into final place.
1184          * We've left things in place so a read-only wiki can continue running
1185          * on the old code during all this.
1186          */
1187         function upgradeCleanup() {
1188                 $this->renameTable( 'old', 'text' );
1189
1190                 foreach( $this->cleanupSwaps as $table ) {
1191                         $this->swap( $table );
1192                 }
1193         }
1194
1195         function renameTable( $from, $to ) {
1196                 $this->log( "Renaming $from to $to..." );
1197
1198                 $fromtable = $this->dbw->tableName( $from );
1199                 $totable   = $this->dbw->tableName( $to );
1200                 $this->dbw->query( "ALTER TABLE $fromtable RENAME TO $totable" );
1201         }
1202
1203         function swap( $base ) {
1204                 $this->renameTable( $base, "{$base}_old" );
1205                 $this->renameTable( "{$base}_temp", $base );
1206         }
1207
1208 }
1209
1210 $upgrade = new FiveUpgrade();
1211 $step = isset( $options['step'] ) ? $options['step'] : null;
1212 $upgrade->upgrade( $step );
1213
1214 ?>