maintenance/FiveUpgrade.inc

   1 <?php
   2
   3 require_once( 'cleanupDupes.inc' );
   4 require_once( 'userDupes.inc' );
   5 require_once( 'updaters.inc' );
   6
   7 define( 'MW_UPGRADE_COPY',     false );
   8 define( 'MW_UPGRADE_ENCODE',   true  );
   9 define( 'MW_UPGRADE_NULL',     null  );
  10 define( 'MW_UPGRADE_CALLBACK', null  ); // for self-documentation only
  11
  12 class FiveUpgrade {
  13         function FiveUpgrade() {
  14                 $this->conversionTables = $this->prepareWindows1252();
  15
  16                 $this->dbw =& $this->newConnection();
  17                 $this->dbr =& $this->streamConnection();
  18
  19                 $this->cleanupSwaps = array();
  20                 $this->emailAuth = false; # don't preauthenticate emails
  21                 $this->maxLag    = 10; # if slaves are lagged more than 10 secs, wait
  22         }
  23
  24         function doing( $step ) {
  25                 return is_null( $this->step ) || $step == $this->step;
  26         }
  27
  28         function upgrade( $step ) {
  29                 $this->step = $step;
  30
  31                 $tables = array(
  32                         'page',
  33                         'links',
  34                         'user',
  35                         'image',
  36                         'oldimage',
  37                         'watchlist',
  38                         'logging',
  39                         'archive',
  40                         'imagelinks',
  41                         'categorylinks',
  42                         'ipblocks',
  43                         'recentchanges',
  44                         'querycache' );
  45                 foreach( $tables as $table ) {
  46                         if( $this->doing( $table ) ) {
  47                                 $method = 'upgrade' . ucfirst( $table );
  48                                 $this->$method();
  49                         }
  50                 }
  51
  52                 if( $this->doing( 'cleanup' ) ) {
  53                         $this->upgradeCleanup();
  54                 }
  55         }
  56
  57
  58         /**
  59          * Open a connection to the master server with the admin rights.
  60          * @return Database
  61          * @access private
  62          */
  63         function &newConnection() {
  64                 global $wgDBadminuser, $wgDBadminpassword;
  65                 global $wgDBserver, $wgDBname;
  66                 $db = new Database( $wgDBserver, $wgDBadminuser, $wgDBadminpassword, $wgDBname );
  67                 return $db;
  68         }
  69
  70         /**
  71          * Open a second connection to the master server, with buffering off.
  72          * This will let us stream large datasets in and write in chunks on the
  73          * other end.
  74          * @return Database
  75          * @access private
  76          */
  77         function &streamConnection() {
  78                 $timeout = 3600 * 24;
  79                 $db =& $this->newConnection();
  80                 $db->bufferResults( false );
  81                 $db->query( "SET net_read_timeout=$timeout" );
  82                 $db->query( "SET net_write_timeout=$timeout" );
  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 => 0xFFFD, #REPLACEMENT CHARACTER (no mapping)
 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 => 0xFFFD, #REPLACEMENT CHARACTER (no mapping)
 113                         0x8E => 0x017D, #LATIN CAPITAL LETTER Z WITH CARON
 114                         0x8F => 0xFFFD, #REPLACEMENT CHARACTER (no mapping)
 115                         0x90 => 0xFFFD, #REPLACEMENT CHARACTER (no mapping)
 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 => 0xFFFD, #REPLACEMENT CHARACTER (no mapping)
 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 wfWikiID() . ' ' . 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( 'IGNORE' );
 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                 // Give slaves a chance to catch up
 253                 wfWaitForSlaves( $this->maxLag );
 254                 $this->dbw->insert( $this->chunkTable, $chunk, $this->chunkFunction, $this->chunkOptions );
 255         }
 256
 257
 258         /**
 259          * Copy and transcode a table to table_temp.
 260          * @param string $name Base name of the source table
 261          * @param string $tabledef CREATE TABLE definition, w/ $1 for the name
 262          * @param array $fields set of destination fields to these constants:
 263          *              MW_UPGRADE_COPY   - straight copy
 264          *              MW_UPGRADE_ENCODE - for old Latin1 wikis, conv to UTF-8
 265          *              MW_UPGRADE_NULL   - just put NULL
 266          * @param callable $callback An optional callback to modify the data
 267          *                           or perform other processing. Func should be
 268          *                           ( object $row, array $copy ) and return $copy
 269          * @access private
 270          */
 271         function copyTable( $name, $tabledef, $fields, $callback = null ) {
 272                 $fname = 'FiveUpgrade::copyTable';
 273
 274                 $name_temp = $name . '_temp';
 275                 $this->log( "Migrating $name table to $name_temp..." );
 276
 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                 if( $this->dbw->tableExists( 'page' ) ) {
 327                         $this->log( 'Page table already exists; aborting.' );
 328                         die( -1 );
 329                 }
 330
 331                 $this->log( "Checking cur table for unique title index and applying if necessary" );
 332                 checkDupes( true );
 333
 334                 $this->log( "...converting from cur/old to page/revision/text DB structure." );
 335
 336                 list ($cur, $old, $page, $revision, $text) = $this->dbw->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 337
 338                 $this->log( "Creating page and revision tables..." );
 339                 $this->dbw->query("CREATE TABLE $page (
 340                         page_id int(8) unsigned NOT NULL auto_increment,
 341                         page_namespace int NOT NULL,
 342                         page_title varchar(255) binary NOT NULL,
 343                         page_restrictions tinyblob NOT NULL default '',
 344                         page_counter bigint(20) unsigned NOT NULL default '0',
 345                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 346                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 347                         page_random real unsigned NOT NULL,
 348                         page_touched char(14) binary NOT NULL default '',
 349                         page_latest int(8) unsigned NOT NULL,
 350                         page_len int(8) unsigned NOT NULL,
 351
 352                         PRIMARY KEY page_id (page_id),
 353                         UNIQUE INDEX name_title (page_namespace,page_title),
 354                         INDEX (page_random),
 355                         INDEX (page_len)
 356                         ) TYPE=InnoDB", $fname );
 357                 $this->dbw->query("CREATE TABLE $revision (
 358                         rev_id int(8) unsigned NOT NULL auto_increment,
 359                         rev_page int(8) unsigned NOT NULL,
 360                         rev_text_id int(8) unsigned NOT NULL,
 361                         rev_comment tinyblob NOT NULL default '',
 362                         rev_user int(5) unsigned NOT NULL default '0',
 363                         rev_user_text varchar(255) binary NOT NULL default '',
 364                         rev_timestamp char(14) binary NOT NULL default '',
 365                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 366                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 367
 368                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 369                         UNIQUE INDEX rev_id (rev_id),
 370                         INDEX rev_timestamp (rev_timestamp),
 371                         INDEX page_timestamp (rev_page,rev_timestamp),
 372                         INDEX user_timestamp (rev_user,rev_timestamp),
 373                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 374                         ) TYPE=InnoDB", $fname );
 375
 376                 $maxold = intval( $this->dbw->selectField( 'old', 'max(old_id)', '', $fname ) );
 377                 $this->log( "Last old record is {$maxold}" );
 378
 379                 global $wgLegacySchemaConversion;
 380                 if( $wgLegacySchemaConversion ) {
 381                         // Create HistoryBlobCurStub entries.
 382                         // Text will be pulled from the leftover 'cur' table at runtime.
 383                         echo "......Moving metadata from cur; using blob references to text in cur table.\n";
 384                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 385                         $cur_flags = "'object'";
 386                 } else {
 387                         // Copy all cur text in immediately: this may take longer but avoids
 388                         // having to keep an extra table around.
 389                         echo "......Moving text from cur.\n";
 390                         $cur_text = 'cur_text';
 391                         $cur_flags = "''";
 392                 }
 393
 394                 $maxcur = $this->dbw->selectField( 'cur', 'max(cur_id)', '', $fname );
 395                 $this->log( "Last cur entry is $maxcur" );
 396
 397                 /**
 398                  * Copy placeholder records for each page's current version into old
 399                  * Don't do any conversion here; text records are converted at runtime
 400                  * based on the flags (and may be originally binary!) while the meta
 401                  * fields will be converted in the old -> rev and cur -> page steps.
 402                  */
 403                 $this->setChunkScale( $chunksize, $maxcur, 'old', $fname );
 404                 $result = $this->dbr->query(
 405                         "SELECT cur_id, cur_namespace, cur_title, $cur_text AS text, cur_comment,
 406                         cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags AS flags
 407                         FROM $cur
 408                         ORDER BY cur_id", $fname );
 409                 $add = array();
 410                 while( $row = $this->dbr->fetchObject( $result ) ) {
 411                         $add[] = array(
 412                                 'old_namespace'  => $row->cur_namespace,
 413                                 'old_title'      => $row->cur_title,
 414                                 'old_text'       => $row->text,
 415                                 'old_comment'    => $row->cur_comment,
 416                                 'old_user'       => $row->cur_user,
 417                                 'old_user_text'  => $row->cur_user_text,
 418                                 'old_timestamp'  => $row->cur_timestamp,
 419                                 'old_minor_edit' => $row->cur_minor_edit,
 420                                 'old_flags'      => $row->flags );
 421                         $this->addChunk( $add, $row->cur_id );
 422                 }
 423                 $this->lastChunk( $add );
 424                 $this->dbr->freeResult( $result );
 425
 426                 /**
 427                  * Copy revision metadata from old into revision.
 428                  * We'll also do UTF-8 conversion of usernames and comments.
 429                  */
 430                 #$newmaxold = $this->dbw->selectField( 'old', 'max(old_id)', '', $fname );
 431                 #$this->setChunkScale( $chunksize, $newmaxold, 'revision', $fname );
 432                 #$countold = $this->dbw->selectField( 'old', 'count(old_id)', '', $fname );
 433                 $countold = $this->dbw->selectField( 'old', 'max(old_id)', '', $fname );
 434                 $this->setChunkScale( $chunksize, $countold, 'revision', $fname );
 435
 436                 $this->log( "......Setting up revision table." );
 437                 $result = $this->dbr->query(
 438                         "SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 439                         old_timestamp, old_minor_edit
 440                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title",
 441                         $fname );
 442
 443                 $add = array();
 444                 while( $row = $this->dbr->fetchObject( $result ) ) {
 445                         $add[] = array(
 446                                 'rev_id'         =>              $row->old_id,
 447                                 'rev_page'       =>              $row->cur_id,
 448                                 'rev_text_id'    =>              $row->old_id,
 449                                 'rev_comment'    => $this->conv( $row->old_comment ),
 450                                 'rev_user'       =>              $row->old_user,
 451                                 'rev_user_text'  => $this->conv( $row->old_user_text ),
 452                                 'rev_timestamp'  =>              $row->old_timestamp,
 453                                 'rev_minor_edit' =>              $row->old_minor_edit );
 454                         $this->addChunk( $add );
 455                 }
 456                 $this->lastChunk( $add );
 457                 $this->dbr->freeResult( $result );
 458
 459
 460                 /**
 461                  * Copy page metadata from cur into page.
 462                  * We'll also do UTF-8 conversion of titles.
 463                  */
 464                 $this->log( "......Setting up page table." );
 465                 $this->setChunkScale( $chunksize, $maxcur, 'page', $fname );
 466                 $result = $this->dbr->query( "
 467                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 468                                 cur_random, cur_touched, rev_id, LENGTH(cur_text) AS len
 469                         FROM $cur,$revision
 470                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}
 471                         ORDER BY cur_id", $fname );
 472                 $add = array();
 473                 while( $row = $this->dbr->fetchObject( $result ) ) {
 474                         $add[] = array(
 475                                 'page_id'           =>              $row->cur_id,
 476                                 'page_namespace'    =>              $row->cur_namespace,
 477                                 'page_title'        => $this->conv( $row->cur_title ),
 478                                 'page_restrictions' =>              $row->cur_restrictions,
 479                                 'page_counter'      =>              $row->cur_counter,
 480                                 'page_is_redirect'  =>              $row->cur_is_redirect,
 481                                 'page_is_new'       =>              $row->cur_is_new,
 482                                 'page_random'       =>              $row->cur_random,
 483                                 'page_touched'      =>              $this->dbw->timestamp(),
 484                                 'page_latest'       =>              $row->rev_id,
 485                                 'page_len'          =>              $row->len );
 486                         #$this->addChunk( $add, $row->cur_id );
 487                         $this->addChunk( $add );
 488                 }
 489                 $this->lastChunk( $add );
 490                 $this->dbr->freeResult( $result );
 491
 492                 $this->log( "...done with cur/old -> page/revision." );
 493         }
 494
 495         function upgradeLinks() {
 496                 $fname = 'FiveUpgrade::upgradeLinks';
 497                 $chunksize = 200;
 498                 list ($links, $brokenlinks, $pagelinks, $cur) = $this->dbw->tableNamesN( 'links', 'brokenlinks', 'pagelinks', 'cur' );
 499
 500                 $this->log( 'Checking for interwiki table change in case of bogus items...' );
 501                 if( $this->dbw->fieldExists( 'interwiki', 'iw_trans' ) ) {
 502                         $this->log( 'interwiki has iw_trans.' );
 503                 } else {
 504                         global $IP;
 505                         $this->log( 'adding iw_trans...' );
 506                         dbsource( $IP . '/maintenance/archives/patch-interwiki-trans.sql', $this->dbw );
 507                         $this->log( 'added iw_trans.' );
 508                 }
 509
 510                 $this->log( 'Creating pagelinks table...' );
 511                 $this->dbw->query( "
 512 CREATE TABLE $pagelinks (
 513   -- Key to the page_id of the page containing the link.
 514   pl_from int(8) unsigned NOT NULL default '0',
 515
 516   -- Key to page_namespace/page_title of the target page.
 517   -- The target page may or may not exist, and due to renames
 518   -- and deletions may refer to different page records as time
 519   -- goes by.
 520   pl_namespace int NOT NULL default '0',
 521   pl_title varchar(255) binary NOT NULL default '',
 522
 523   UNIQUE KEY pl_from(pl_from,pl_namespace,pl_title),
 524   KEY (pl_namespace,pl_title)
 525
 526 ) TYPE=InnoDB" );
 527
 528                 $this->log( 'Importing live links -> pagelinks' );
 529                 $nlinks = $this->dbw->selectField( 'links', 'count(*)', '', $fname );
 530                 if( $nlinks ) {
 531                         $this->setChunkScale( $chunksize, $nlinks, 'pagelinks', $fname );
 532                         $result = $this->dbr->query( "
 533                           SELECT l_from,cur_namespace,cur_title
 534                                 FROM $links, $cur
 535                                 WHERE l_to=cur_id", $fname );
 536                         $add = array();
 537                         while( $row = $this->dbr->fetchObject( $result ) ) {
 538                                 $add[] = array(
 539                                         'pl_from'      =>              $row->l_from,
 540                                         'pl_namespace' =>              $row->cur_namespace,
 541                                         'pl_title'     => $this->conv( $row->cur_title ) );
 542                                 $this->addChunk( $add );
 543                         }
 544                         $this->lastChunk( $add );
 545                 } else {
 546                         $this->log( 'no links!' );
 547                 }
 548
 549                 $this->log( 'Importing brokenlinks -> pagelinks' );
 550                 $nbrokenlinks = $this->dbw->selectField( 'brokenlinks', 'count(*)', '', $fname );
 551                 if( $nbrokenlinks ) {
 552                         $this->setChunkScale( $chunksize, $nbrokenlinks, 'pagelinks', $fname );
 553                         $result = $this->dbr->query(
 554                                 "SELECT bl_from, bl_to FROM $brokenlinks",
 555                                 $fname );
 556                         $add = array();
 557                         while( $row = $this->dbr->fetchObject( $result ) ) {
 558                                 $pagename = $this->conv( $row->bl_to );
 559                                 $title = Title::newFromText( $pagename );
 560                                 if( is_null( $title ) ) {
 561                                         $this->log( "** invalid brokenlink: $row->bl_from -> '$pagename' (converted from '$row->bl_to')" );
 562                                 } else {
 563                                         $add[] = array(
 564                                                 'pl_from'      => $row->bl_from,
 565                                                 'pl_namespace' => $title->getNamespace(),
 566                                                 'pl_title'     => $title->getDBkey() );
 567                                         $this->addChunk( $add );
 568                                 }
 569                         }
 570                         $this->lastChunk( $add );
 571                 } else {
 572                         $this->log( 'no brokenlinks!' );
 573                 }
 574
 575                 $this->log( 'Done with links.' );
 576         }
 577
 578         function upgradeUser() {
 579                 // Apply unique index, if necessary:
 580                 $duper = new UserDupes( $this->dbw );
 581                 if( $duper->hasUniqueIndex() ) {
 582                         $this->log( "Already have unique user_name index." );
 583                 } else {
 584                         $this->log( "Clearing user duplicates..." );
 585                         if( !$duper->clearDupes() ) {
 586                                 $this->log( "WARNING: Duplicate user accounts, may explode!" );
 587                         }
 588                 }
 589
 590                 $tabledef = <<<END
 591 CREATE TABLE $1 (
 592   user_id int(5) unsigned NOT NULL auto_increment,
 593   user_name varchar(255) binary NOT NULL default '',
 594   user_real_name varchar(255) binary NOT NULL default '',
 595   user_password tinyblob NOT NULL default '',
 596   user_newpassword tinyblob NOT NULL default '',
 597   user_email tinytext NOT NULL default '',
 598   user_options blob NOT NULL default '',
 599   user_touched char(14) binary NOT NULL default '',
 600   user_token char(32) binary NOT NULL default '',
 601   user_email_authenticated CHAR(14) BINARY,
 602   user_email_token CHAR(32) BINARY,
 603   user_email_token_expires CHAR(14) BINARY,
 604
 605   PRIMARY KEY user_id (user_id),
 606   UNIQUE INDEX user_name (user_name),
 607   INDEX (user_email_token)
 608
 609 ) TYPE=InnoDB
 610 END;
 611                 $fields = array(
 612                         'user_id'                  => MW_UPGRADE_COPY,
 613                         'user_name'                => MW_UPGRADE_ENCODE,
 614                         'user_real_name'           => MW_UPGRADE_ENCODE,
 615                         'user_password'            => MW_UPGRADE_COPY,
 616                         'user_newpassword'         => MW_UPGRADE_COPY,
 617                         'user_email'               => MW_UPGRADE_ENCODE,
 618                         'user_options'             => MW_UPGRADE_ENCODE,
 619                         'user_touched'             => MW_UPGRADE_CALLBACK,
 620                         'user_token'               => MW_UPGRADE_COPY,
 621                         'user_email_authenticated' => MW_UPGRADE_CALLBACK,
 622                         'user_email_token'         => MW_UPGRADE_NULL,
 623                         'user_email_token_expires' => MW_UPGRADE_NULL );
 624                 $this->copyTable( 'user', $tabledef, $fields,
 625                         array( &$this, 'userCallback' ) );
 626         }
 627
 628         function userCallback( $row, $copy ) {
 629                 $now = $this->dbw->timestamp();
 630                 $copy['user_touched'] = $now;
 631                 $copy['user_email_authenticated'] = $this->emailAuth ? $now : null;
 632                 return $copy;
 633         }
 634
 635         function upgradeImage() {
 636                 $tabledef = <<<END
 637 CREATE TABLE $1 (
 638   img_name varchar(255) binary NOT NULL default '',
 639   img_size int(8) unsigned NOT NULL default '0',
 640   img_width int(5)  NOT NULL default '0',
 641   img_height int(5)  NOT NULL default '0',
 642   img_metadata mediumblob NOT NULL,
 643   img_bits int(3)  NOT NULL default '0',
 644   img_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
 645   img_major_mime ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") NOT NULL default "unknown",
 646   img_minor_mime varchar(32) NOT NULL default "unknown",
 647   img_description tinyblob NOT NULL default '',
 648   img_user int(5) unsigned NOT NULL default '0',
 649   img_user_text varchar(255) binary NOT NULL default '',
 650   img_timestamp char(14) binary NOT NULL default '',
 651
 652   PRIMARY KEY img_name (img_name),
 653   INDEX img_size (img_size),
 654   INDEX img_timestamp (img_timestamp)
 655 ) TYPE=InnoDB
 656 END;
 657                 $fields = array(
 658                         'img_name'        => MW_UPGRADE_ENCODE,
 659                         'img_size'        => MW_UPGRADE_COPY,
 660                         'img_width'       => MW_UPGRADE_CALLBACK,
 661                         'img_height'      => MW_UPGRADE_CALLBACK,
 662                         'img_metadata'    => MW_UPGRADE_CALLBACK,
 663                         'img_bits'        => MW_UPGRADE_CALLBACK,
 664                         'img_media_type'  => MW_UPGRADE_CALLBACK,
 665                         'img_major_mime'  => MW_UPGRADE_CALLBACK,
 666                         'img_minor_mime'  => MW_UPGRADE_CALLBACK,
 667                         'img_description' => MW_UPGRADE_ENCODE,
 668                         'img_user'        => MW_UPGRADE_COPY,
 669                         'img_user_text'   => MW_UPGRADE_ENCODE,
 670                         'img_timestamp'   => MW_UPGRADE_COPY );
 671                 $this->copyTable( 'image', $tabledef, $fields,
 672                         array( &$this, 'imageCallback' ) );
 673         }
 674
 675         function imageCallback( $row, $copy ) {
 676                 global $options;
 677                 if( !isset( $options['noimage'] ) ) {
 678                         // Fill in the new image info fields
 679                         $info = $this->imageInfo( $row->img_name );
 680
 681                         $copy['img_width'     ] = $info['width'];
 682                         $copy['img_height'    ] = $info['height'];
 683                         $copy['img_metadata'  ] = ""; // loaded on-demand
 684                         $copy['img_bits'      ] = $info['bits'];
 685                         $copy['img_media_type'] = $info['media'];
 686                         $copy['img_major_mime'] = $info['major'];
 687                         $copy['img_minor_mime'] = $info['minor'];
 688                 }
 689
 690                 // If doing UTF8 conversion the file must be renamed
 691                 $this->renameFile( $row->img_name, 'wfImageDir' );
 692
 693                 return $copy;
 694         }
 695
 696         function imageInfo( $name, $subdirCallback='wfImageDir', $basename = null ) {
 697                 if( is_null( $basename ) ) $basename = $name;
 698                 $dir = call_user_func( $subdirCallback, $basename );
 699                 $filename = $dir . '/' . $name;
 700                 $info = array(
 701                         'width'  => 0,
 702                         'height' => 0,
 703                         'bits'   => 0,
 704                         'media'  => '',
 705                         'major'  => '',
 706                         'minor'  => '' );
 707
 708                 $magic =& wfGetMimeMagic();
 709                 $mime = $magic->guessMimeType( $filename, true );
 710                 list( $info['major'], $info['minor'] ) = explode( '/', $mime );
 711
 712                 $info['media'] = $magic->getMediaType( $filename, $mime );
 713
 714                 # Height and width
 715                 $gis = false;
 716                 if( $mime == 'image/svg' ) {
 717                         $gis = wfGetSVGsize( $filename );
 718                 } elseif( $magic->isPHPImageType( $mime ) ) {
 719                         $gis = getimagesize( $filename );
 720                 } else {
 721                         $this->log( "Surprising mime type: $mime" );
 722                 }
 723                 if( $gis ) {
 724                         $info['width' ] = $gis[0];
 725                         $info['height'] = $gis[1];
 726                 }
 727                 if( isset( $gis['bits'] ) ) {
 728                         $info['bits'] = $gis['bits'];
 729                 }
 730
 731                 return $info;
 732         }
 733
 734
 735         /**
 736          * Truncate a table.
 737          * @param string $table The table name to be truncated
 738          */
 739         function clearTable( $table ) {
 740                 print "Clearing $table...\n";
 741                 $tableName = $this->db->tableName( $table );
 742                 $this->db->query( "TRUNCATE $tableName" );
 743         }
 744
 745         /**
 746          * Rename a given image or archived image file to the converted filename,
 747          * leaving a symlink for URL compatibility.
 748          *
 749          * @param string $oldname pre-conversion filename
 750          * @param string $basename pre-conversion base filename for dir hashing, if an archive
 751          * @access private
 752          */
 753         function renameFile( $oldname, $subdirCallback='wfImageDir', $basename=null ) {
 754                 $newname = $this->conv( $oldname );
 755                 if( $newname == $oldname ) {
 756                         // No need to rename; another field triggered this row.
 757                         return false;
 758                 }
 759
 760                 if( is_null( $basename ) ) $basename = $oldname;
 761                 $ubasename = $this->conv( $basename );
 762                 $oldpath = call_user_func( $subdirCallback, $basename ) . '/' . $oldname;
 763                 $newpath = call_user_func( $subdirCallback, $ubasename ) . '/' . $newname;
 764
 765                 $this->log( "$oldpath -> $newpath" );
 766                 if( rename( $oldpath, $newpath ) ) {
 767                         $relpath = wfRelativePath( $newpath, dirname( $oldpath ) );
 768                         if( !symlink( $relpath, $oldpath ) ) {
 769                                 $this->log( "... symlink failed!" );
 770                         }
 771                         return $newname;
 772                 } else {
 773                         $this->log( "... rename failed!" );
 774                         return false;
 775                 }
 776         }
 777
 778         function upgradeOldImage() {
 779                 $tabledef = <<<END
 780 CREATE TABLE $1 (
 781   -- Base filename: key to image.img_name
 782   oi_name varchar(255) binary NOT NULL default '',
 783
 784   -- Filename of the archived file.
 785   -- This is generally a timestamp and '!' prepended to the base name.
 786   oi_archive_name varchar(255) binary NOT NULL default '',
 787
 788   -- Other fields as in image...
 789   oi_size int(8) unsigned NOT NULL default 0,
 790   oi_width int(5) NOT NULL default 0,
 791   oi_height int(5) NOT NULL default 0,
 792   oi_bits int(3) NOT NULL default 0,
 793   oi_description tinyblob NOT NULL default '',
 794   oi_user int(5) unsigned NOT NULL default '0',
 795   oi_user_text varchar(255) binary NOT NULL default '',
 796   oi_timestamp char(14) binary NOT NULL default '',
 797
 798   INDEX oi_name (oi_name(10))
 799
 800 ) TYPE=InnoDB;
 801 END;
 802                 $fields = array(
 803                         'oi_name'         => MW_UPGRADE_ENCODE,
 804                         'oi_archive_name' => MW_UPGRADE_ENCODE,
 805                         'oi_size'         => MW_UPGRADE_COPY,
 806                         'oi_width'        => MW_UPGRADE_CALLBACK,
 807                         'oi_height'       => MW_UPGRADE_CALLBACK,
 808                         'oi_bits'         => MW_UPGRADE_CALLBACK,
 809                         'oi_description'  => MW_UPGRADE_ENCODE,
 810                         'oi_user'         => MW_UPGRADE_COPY,
 811                         'oi_user_text'    => MW_UPGRADE_ENCODE,
 812                         'oi_timestamp'    => MW_UPGRADE_COPY );
 813                 $this->copyTable( 'oldimage', $tabledef, $fields,
 814                         array( &$this, 'oldimageCallback' ) );
 815         }
 816
 817         function oldimageCallback( $row, $copy ) {
 818                 global $options;
 819                 if( !isset( $options['noimage'] ) ) {
 820                         // Fill in the new image info fields
 821                         $info = $this->imageInfo( $row->oi_archive_name, 'wfImageArchiveDir', $row->oi_name );
 822                         $copy['oi_width' ] = $info['width' ];
 823                         $copy['oi_height'] = $info['height'];
 824                         $copy['oi_bits'  ] = $info['bits'  ];
 825                 }
 826
 827                 // If doing UTF8 conversion the file must be renamed
 828                 $this->renameFile( $row->oi_archive_name, 'wfImageArchiveDir', $row->oi_name );
 829
 830                 return $copy;
 831         }
 832
 833
 834         function upgradeWatchlist() {
 835                 $fname = 'FiveUpgrade::upgradeWatchlist';
 836                 $chunksize = 100;
 837
 838                 list ($watchlist, $watchlist_temp) = $this->dbw->tableNamesN( 'watchlist', 'watchlist_temp' );
 839
 840                 $this->log( 'Migrating watchlist table to watchlist_temp...' );
 841                 $this->dbw->query(
 842 "CREATE TABLE $watchlist_temp (
 843   -- Key to user_id
 844   wl_user int(5) unsigned NOT NULL,
 845
 846   -- Key to page_namespace/page_title
 847   -- Note that users may watch patches which do not exist yet,
 848   -- or existed in the past but have been deleted.
 849   wl_namespace int NOT NULL default '0',
 850   wl_title varchar(255) binary NOT NULL default '',
 851
 852   -- Timestamp when user was last sent a notification e-mail;
 853   -- cleared when the user visits the page.
 854   -- FIXME: add proper null support etc
 855   wl_notificationtimestamp varchar(14) binary NOT NULL default '0',
 856
 857   UNIQUE KEY (wl_user, wl_namespace, wl_title),
 858   KEY namespace_title (wl_namespace,wl_title)
 859
 860 ) TYPE=InnoDB;", $fname );
 861
 862                 // Fix encoding for Latin-1 upgrades, add some fields,
 863                 // and double article to article+talk pairs
 864                 $numwatched = $this->dbw->selectField( 'watchlist', 'count(*)', '', $fname );
 865
 866                 $this->setChunkScale( $chunksize, $numwatched * 2, 'watchlist_temp', $fname );
 867                 $result = $this->dbr->select( 'watchlist',
 868                         array(
 869                                 'wl_user',
 870                                 'wl_namespace',
 871                                 'wl_title' ),
 872                         '',
 873                         $fname );
 874
 875                 $add = array();
 876                 while( $row = $this->dbr->fetchObject( $result ) ) {
 877                         $add[] = array(
 878                                 'wl_user'      =>                        $row->wl_user,
 879                                 'wl_namespace' => Namespace::getSubject( $row->wl_namespace ),
 880                                 'wl_title'     =>           $this->conv( $row->wl_title ),
 881                                 'wl_notificationtimestamp' =>            '0' );
 882                         $this->addChunk( $add );
 883
 884                         $add[] = array(
 885                                 'wl_user'      =>                        $row->wl_user,
 886                                 'wl_namespace' =>    Namespace::getTalk( $row->wl_namespace ),
 887                                 'wl_title'     =>           $this->conv( $row->wl_title ),
 888                                 'wl_notificationtimestamp' =>            '0' );
 889                         $this->addChunk( $add );
 890                 }
 891                 $this->lastChunk( $add );
 892                 $this->dbr->freeResult( $result );
 893
 894                 $this->log( 'Done converting watchlist.' );
 895                 $this->cleanupSwaps[] = 'watchlist';
 896         }
 897
 898         function upgradeLogging() {
 899                 $tabledef = <<<END
 900 CREATE TABLE $1 (
 901   -- Symbolic keys for the general log type and the action type
 902   -- within the log. The output format will be controlled by the
 903   -- action field, but only the type controls categorization.
 904   log_type char(10) NOT NULL default '',
 905   log_action char(10) NOT NULL default '',
 906
 907   -- Timestamp. Duh.
 908   log_timestamp char(14) NOT NULL default '19700101000000',
 909
 910   -- The user who performed this action; key to user_id
 911   log_user int unsigned NOT NULL default 0,
 912
 913   -- Key to the page affected. Where a user is the target,
 914   -- this will point to the user page.
 915   log_namespace int NOT NULL default 0,
 916   log_title varchar(255) binary NOT NULL default '',
 917
 918   -- Freeform text. Interpreted as edit history comments.
 919   log_comment varchar(255) NOT NULL default '',
 920
 921   -- LF separated list of miscellaneous parameters
 922   log_params blob NOT NULL default '',
 923
 924   KEY type_time (log_type, log_timestamp),
 925   KEY user_time (log_user, log_timestamp),
 926   KEY page_time (log_namespace, log_title, log_timestamp)
 927
 928 ) TYPE=InnoDB
 929 END;
 930                 $fields = array(
 931                         'log_type'      => MW_UPGRADE_COPY,
 932                         'log_action'    => MW_UPGRADE_COPY,
 933                         'log_timestamp' => MW_UPGRADE_COPY,
 934                         'log_user'      => MW_UPGRADE_COPY,
 935                         'log_namespace' => MW_UPGRADE_COPY,
 936                         'log_title'     => MW_UPGRADE_ENCODE,
 937                         'log_comment'   => MW_UPGRADE_ENCODE,
 938                         'log_params'    => MW_UPGRADE_ENCODE );
 939                 $this->copyTable( 'logging', $tabledef, $fields );
 940         }
 941
 942         function upgradeArchive() {
 943                 $tabledef = <<<END
 944 CREATE TABLE $1 (
 945   ar_namespace int NOT NULL default '0',
 946   ar_title varchar(255) binary NOT NULL default '',
 947   ar_text mediumblob NOT NULL default '',
 948
 949   ar_comment tinyblob NOT NULL default '',
 950   ar_user int(5) unsigned NOT NULL default '0',
 951   ar_user_text varchar(255) binary NOT NULL,
 952   ar_timestamp char(14) binary NOT NULL default '',
 953   ar_minor_edit tinyint(1) NOT NULL default '0',
 954
 955   ar_flags tinyblob NOT NULL default '',
 956
 957   ar_rev_id int(8) unsigned,
 958   ar_text_id int(8) unsigned,
 959
 960   KEY name_title_timestamp (ar_namespace,ar_title,ar_timestamp)
 961
 962 ) TYPE=InnoDB
 963 END;
 964                 $fields = array(
 965                         'ar_namespace'  => MW_UPGRADE_COPY,
 966                         'ar_title'      => MW_UPGRADE_ENCODE,
 967                         'ar_text'       => MW_UPGRADE_COPY,
 968                         'ar_comment'    => MW_UPGRADE_ENCODE,
 969                         'ar_user'       => MW_UPGRADE_COPY,
 970                         'ar_user_text'  => MW_UPGRADE_ENCODE,
 971                         'ar_timestamp'  => MW_UPGRADE_COPY,
 972                         'ar_minor_edit' => MW_UPGRADE_COPY,
 973                         'ar_flags'      => MW_UPGRADE_COPY,
 974                         'ar_rev_id'     => MW_UPGRADE_NULL,
 975                         'ar_text_id'    => MW_UPGRADE_NULL );
 976                 $this->copyTable( 'archive', $tabledef, $fields );
 977         }
 978
 979         function upgradeImagelinks() {
 980                 global $wgUseLatin1;
 981                 if( $wgUseLatin1 ) {
 982                         $tabledef = <<<END
 983 CREATE TABLE $1 (
 984   -- Key to page_id of the page containing the image / media link.
 985   il_from int(8) unsigned NOT NULL default '0',
 986
 987   -- Filename of target image.
 988   -- This is also the page_title of the file's description page;
 989   -- all such pages are in namespace 6 (NS_IMAGE).
 990   il_to varchar(255) binary NOT NULL default '',
 991
 992   UNIQUE KEY il_from(il_from,il_to),
 993   KEY (il_to)
 994
 995 ) TYPE=InnoDB
 996 END;
 997                         $fields = array(
 998                                 'il_from' => MW_UPGRADE_COPY,
 999                                 'il_to'   => MW_UPGRADE_ENCODE );
1000                         $this->copyTable( 'imagelinks', $tabledef, $fields );
1001                 }
1002         }
1003
1004         function upgradeCategorylinks() {
1005                 global $wgUseLatin1;
1006                 if( $wgUseLatin1 ) {
1007                         $tabledef = <<<END
1008 CREATE TABLE $1 (
1009   cl_from int(8) unsigned NOT NULL default '0',
1010   cl_to varchar(255) binary NOT NULL default '',
1011   cl_sortkey varchar(86) binary NOT NULL default '',
1012   cl_timestamp timestamp NOT NULL,
1013
1014   UNIQUE KEY cl_from(cl_from,cl_to),
1015   KEY cl_sortkey(cl_to,cl_sortkey),
1016   KEY cl_timestamp(cl_to,cl_timestamp)
1017 ) TYPE=InnoDB
1018 END;
1019                         $fields = array(
1020                                 'cl_from'      => MW_UPGRADE_COPY,
1021                                 'cl_to'        => MW_UPGRADE_ENCODE,
1022                                 'cl_sortkey'   => MW_UPGRADE_ENCODE,
1023                                 'cl_timestamp' => MW_UPGRADE_COPY );
1024                         $this->copyTable( 'categorylinks', $tabledef, $fields );
1025                 }
1026         }
1027
1028         function upgradeIpblocks() {
1029                 global $wgUseLatin1;
1030                 if( $wgUseLatin1 ) {
1031                         $tabledef = <<<END
1032 CREATE TABLE $1 (
1033   ipb_id int(8) NOT NULL auto_increment,
1034   ipb_address varchar(40) binary NOT NULL default '',
1035   ipb_user int(8) unsigned NOT NULL default '0',
1036   ipb_by int(8) unsigned NOT NULL default '0',
1037   ipb_reason tinyblob NOT NULL default '',
1038   ipb_timestamp char(14) binary NOT NULL default '',
1039   ipb_auto tinyint(1) NOT NULL default '0',
1040   ipb_expiry char(14) binary NOT NULL default '',
1041
1042   PRIMARY KEY ipb_id (ipb_id),
1043   INDEX ipb_address (ipb_address),
1044   INDEX ipb_user (ipb_user)
1045
1046 ) TYPE=InnoDB
1047 END;
1048                         $fields = array(
1049                                 'ipb_id'        => MW_UPGRADE_COPY,
1050                                 'ipb_address'   => MW_UPGRADE_COPY,
1051                                 'ipb_user'      => MW_UPGRADE_COPY,
1052                                 'ipb_by'        => MW_UPGRADE_COPY,
1053                                 'ipb_reason'    => MW_UPGRADE_ENCODE,
1054                                 'ipb_timestamp' => MW_UPGRADE_COPY,
1055                                 'ipb_auto'      => MW_UPGRADE_COPY,
1056                                 'ipb_expiry'    => MW_UPGRADE_COPY );
1057                         $this->copyTable( 'ipblocks', $tabledef, $fields );
1058                 }
1059         }
1060
1061         function upgradeRecentchanges() {
1062                 // There's a format change in the namespace field
1063                 $tabledef = <<<END
1064 CREATE TABLE $1 (
1065   rc_id int(8) NOT NULL auto_increment,
1066   rc_timestamp varchar(14) binary NOT NULL default '',
1067   rc_cur_time varchar(14) binary NOT NULL default '',
1068
1069   rc_user int(10) unsigned NOT NULL default '0',
1070   rc_user_text varchar(255) binary NOT NULL default '',
1071
1072   rc_namespace int NOT NULL default '0',
1073   rc_title varchar(255) binary NOT NULL default '',
1074
1075   rc_comment varchar(255) binary NOT NULL default '',
1076   rc_minor tinyint(3) unsigned NOT NULL default '0',
1077
1078   rc_bot tinyint(3) unsigned NOT NULL default '0',
1079   rc_new tinyint(3) unsigned NOT NULL default '0',
1080
1081   rc_cur_id int(10) unsigned NOT NULL default '0',
1082   rc_this_oldid int(10) unsigned NOT NULL default '0',
1083   rc_last_oldid int(10) unsigned NOT NULL default '0',
1084
1085   rc_type tinyint(3) unsigned NOT NULL default '0',
1086   rc_moved_to_ns tinyint(3) unsigned NOT NULL default '0',
1087   rc_moved_to_title varchar(255) binary NOT NULL default '',
1088
1089   rc_patrolled tinyint(3) unsigned NOT NULL default '0',
1090
1091   rc_ip char(15) NOT NULL default '',
1092
1093   PRIMARY KEY rc_id (rc_id),
1094   INDEX rc_timestamp (rc_timestamp),
1095   INDEX rc_namespace_title (rc_namespace, rc_title),
1096   INDEX rc_cur_id (rc_cur_id),
1097   INDEX new_name_timestamp(rc_new,rc_namespace,rc_timestamp),
1098   INDEX rc_ip (rc_ip)
1099
1100 ) TYPE=InnoDB
1101 END;
1102                 $fields = array(
1103                         'rc_id'             => MW_UPGRADE_COPY,
1104                         'rc_timestamp'      => MW_UPGRADE_COPY,
1105                         'rc_cur_time'       => MW_UPGRADE_COPY,
1106                         'rc_user'           => MW_UPGRADE_COPY,
1107                         'rc_user_text'      => MW_UPGRADE_ENCODE,
1108                         'rc_namespace'      => MW_UPGRADE_COPY,
1109                         'rc_title'          => MW_UPGRADE_ENCODE,
1110                         'rc_comment'        => MW_UPGRADE_ENCODE,
1111                         'rc_minor'          => MW_UPGRADE_COPY,
1112                         'rc_bot'            => MW_UPGRADE_COPY,
1113                         'rc_new'            => MW_UPGRADE_COPY,
1114                         'rc_cur_id'         => MW_UPGRADE_COPY,
1115                         'rc_this_oldid'     => MW_UPGRADE_COPY,
1116                         'rc_last_oldid'     => MW_UPGRADE_COPY,
1117                         'rc_type'           => MW_UPGRADE_COPY,
1118                         'rc_moved_to_ns'    => MW_UPGRADE_COPY,
1119                         'rc_moved_to_title' => MW_UPGRADE_ENCODE,
1120                         'rc_patrolled'      => MW_UPGRADE_COPY,
1121                         'rc_ip'             => MW_UPGRADE_COPY );
1122                 $this->copyTable( 'recentchanges', $tabledef, $fields );
1123         }
1124
1125         function upgradeQuerycache() {
1126                 // There's a format change in the namespace field
1127                 $tabledef = <<<END
1128 CREATE TABLE $1 (
1129   -- A key name, generally the base name of of the special page.
1130   qc_type char(32) NOT NULL,
1131
1132   -- Some sort of stored value. Sizes, counts...
1133   qc_value int(5) unsigned NOT NULL default '0',
1134
1135   -- Target namespace+title
1136   qc_namespace int NOT NULL default '0',
1137   qc_title char(255) binary NOT NULL default '',
1138
1139   KEY (qc_type,qc_value)
1140
1141 ) TYPE=InnoDB
1142 END;
1143                 $fields = array(
1144                         'qc_type'      => MW_UPGRADE_COPY,
1145                         'qc_value'     => MW_UPGRADE_COPY,
1146                         'qc_namespace' => MW_UPGRADE_COPY,
1147                         'qc_title'     => MW_UPGRADE_ENCODE );
1148                 $this->copyTable( 'querycache', $tabledef, $fields );
1149         }
1150
1151         /**
1152          * Rename all our temporary tables into final place.
1153          * We've left things in place so a read-only wiki can continue running
1154          * on the old code during all this.
1155          */
1156         function upgradeCleanup() {
1157                 $this->renameTable( 'old', 'text' );
1158
1159                 foreach( $this->cleanupSwaps as $table ) {
1160                         $this->swap( $table );
1161                 }
1162         }
1163
1164         function renameTable( $from, $to ) {
1165                 $this->log( "Renaming $from to $to..." );
1166
1167                 $fromtable = $this->dbw->tableName( $from );
1168                 $totable   = $this->dbw->tableName( $to );
1169                 $this->dbw->query( "ALTER TABLE $fromtable RENAME TO $totable" );
1170         }
1171
1172         function swap( $base ) {
1173                 $this->renameTable( $base, "{$base}_old" );
1174                 $this->renameTable( "{$base}_temp", $base );
1175         }
1176
1177 }
1178
1179 ?>