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