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