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