maintenance/FiveUpgrade.inc

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup Maintenance
   5  */
   6
   7 require_once( 'updaters.inc' );
   8
   9 define( 'MW_UPGRADE_COPY',     false );
  10 define( 'MW_UPGRADE_ENCODE',   true  );
  11 define( 'MW_UPGRADE_NULL',     null  );
  12 define( 'MW_UPGRADE_CALLBACK', null  ); // for self-documentation only
  13
  14 /**
  15  * @ingroup Maintenance
  16  */
  17 class FiveUpgrade {
  18         function FiveUpgrade() {
  19                 $this->conversionTables = $this->prepareWindows1252();
  20
  21                 $this->loadBalancers = array();
  22                 $this->dbw = wfGetDB( DB_MASTER );
  23                 $this->dbr = $this->streamConnection();
  24
  25                 $this->cleanupSwaps = array();
  26                 $this->emailAuth = false; # don't preauthenticate emails
  27                 $this->maxLag    = 10; # if slaves are lagged more than 10 secs, wait
  28         }
  29
  30         function doing( $step ) {
  31                 return is_null( $this->step ) || $step == $this->step;
  32         }
  33
  34         function upgrade( $step ) {
  35                 $this->step = $step;
  36
  37                 $tables = array(
  38                         'page',
  39                         'links',
  40                         'user',
  41                         'image',
  42                         'oldimage',
  43                         'watchlist',
  44                         'logging',
  45                         'archive',
  46                         'imagelinks',
  47                         'categorylinks',
  48                         'ipblocks',
  49                         'recentchanges',
  50                         'querycache' );
  51                 foreach ( $tables as $table ) {
  52                         if ( $this->doing( $table ) ) {
  53                                 $method = 'upgrade' . ucfirst( $table );
  54                                 $this->$method();
  55                         }
  56                 }
  57
  58                 if ( $this->doing( 'cleanup' ) ) {
  59                         $this->upgradeCleanup();
  60                 }
  61         }
  62
  63
  64         /**
  65          * Open a connection to the master server with the admin rights.
  66          * @return Database
  67          * @access private
  68          */
  69         function newConnection() {
  70                 $lb = wfGetLBFactory()->newMainLB();
  71                 $db = $lb->getConnection( DB_MASTER );
  72
  73                 $this->loadBalancers[] = $lb;
  74                 return $db;
  75         }
  76
  77         /**
  78          * Commit transactions and close the connections when we're done...
  79          */
  80         function close() {
  81                 foreach ( $this->loadBalancers as $lb ) {
  82                         $lb->commitMasterChanges();
  83                         $lb->closeAll();
  84                 }
  85         }
  86
  87         /**
  88          * Open a second connection to the master server, with buffering off.
  89          * This will let us stream large datasets in and write in chunks on the
  90          * other end.
  91          * @return Database
  92          * @access private
  93          */
  94         function streamConnection() {
  95                 global $wgDBtype;
  96
  97                 $timeout = 3600 * 24;
  98                 $db = $this->newConnection();
  99                 $db->bufferResults( false );
 100                 if ( $wgDBtype == 'mysql' ) {
 101                         $db->query( "SET net_read_timeout=$timeout" );
 102                         $db->query( "SET net_write_timeout=$timeout" );
 103                 }
 104                 return $db;
 105         }
 106
 107         /**
 108          * Prepare a conversion array for converting Windows Code Page 1252 to
 109          * UTF-8. This should provide proper conversion of text that was miscoded
 110          * as Windows-1252 by naughty user-agents, and doesn't rely on an outside
 111          * iconv library.
 112          *
 113          * @return array
 114          * @access private
 115          */
 116         function prepareWindows1252() {
 117                 # Mappings from:
 118                 # http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP1252.TXT
 119                 static $cp1252 = array(
 120                         0x80 => 0x20AC, # EURO SIGN
 121                         0x81 => 0xFFFD, # REPLACEMENT CHARACTER (no mapping)
 122                         0x82 => 0x201A, # SINGLE LOW-9 QUOTATION MARK
 123                         0x83 => 0x0192, # LATIN SMALL LETTER F WITH HOOK
 124                         0x84 => 0x201E, # DOUBLE LOW-9 QUOTATION MARK
 125                         0x85 => 0x2026, # HORIZONTAL ELLIPSIS
 126                         0x86 => 0x2020, # DAGGER
 127                         0x87 => 0x2021, # DOUBLE DAGGER
 128                         0x88 => 0x02C6, # MODIFIER LETTER CIRCUMFLEX ACCENT
 129                         0x89 => 0x2030, # PER MILLE SIGN
 130                         0x8A => 0x0160, # LATIN CAPITAL LETTER S WITH CARON
 131                         0x8B => 0x2039, # SINGLE LEFT-POINTING ANGLE QUOTATION MARK
 132                         0x8C => 0x0152, # LATIN CAPITAL LIGATURE OE
 133                         0x8D => 0xFFFD, # REPLACEMENT CHARACTER (no mapping)
 134                         0x8E => 0x017D, # LATIN CAPITAL LETTER Z WITH CARON
 135                         0x8F => 0xFFFD, # REPLACEMENT CHARACTER (no mapping)
 136                         0x90 => 0xFFFD, # REPLACEMENT CHARACTER (no mapping)
 137                         0x91 => 0x2018, # LEFT SINGLE QUOTATION MARK
 138                         0x92 => 0x2019, # RIGHT SINGLE QUOTATION MARK
 139                         0x93 => 0x201C, # LEFT DOUBLE QUOTATION MARK
 140                         0x94 => 0x201D, # RIGHT DOUBLE QUOTATION MARK
 141                         0x95 => 0x2022, # BULLET
 142                         0x96 => 0x2013, # EN DASH
 143                         0x97 => 0x2014, # EM DASH
 144                         0x98 => 0x02DC, # SMALL TILDE
 145                         0x99 => 0x2122, # TRADE MARK SIGN
 146                         0x9A => 0x0161, # LATIN SMALL LETTER S WITH CARON
 147                         0x9B => 0x203A, # SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
 148                         0x9C => 0x0153, # LATIN SMALL LIGATURE OE
 149                         0x9D => 0xFFFD, # REPLACEMENT CHARACTER (no mapping)
 150                         0x9E => 0x017E, # LATIN SMALL LETTER Z WITH CARON
 151                         0x9F => 0x0178, # LATIN CAPITAL LETTER Y WITH DIAERESIS
 152                         );
 153                 $pairs = array();
 154                 for ( $i = 0; $i < 0x100; $i++ ) {
 155                         $unicode = isset( $cp1252[$i] ) ? $cp1252[$i] : $i;
 156                         $pairs[chr( $i )] = codepointToUtf8( $unicode );
 157                 }
 158                 return $pairs;
 159         }
 160
 161         /**
 162          * Convert from 8-bit Windows-1252 to UTF-8 if necessary.
 163          * @param string $text
 164          * @return string
 165          * @access private
 166          */
 167         function conv( $text ) {
 168                 global $wgUseLatin1;
 169                 return is_null( $text )
 170                         ? null
 171                         : ( $wgUseLatin1
 172                                 ? strtr( $text, $this->conversionTables )
 173                                 : $text );
 174         }
 175
 176         /**
 177          * Dump timestamp and message to output
 178          * @param string $message
 179          * @access private
 180          */
 181         function log( $message ) {
 182                 echo wfWikiID() . ' ' . wfTimestamp( TS_DB ) . ': ' . $message . "\n";
 183                 flush();
 184         }
 185
 186         /**
 187          * Initialize the chunked-insert system.
 188          * Rows will be inserted in chunks of the given number, rather
 189          * than in a giant INSERT...SELECT query, to keep the serialized
 190          * MySQL database replication from getting hung up. This way other
 191          * things can be going on during conversion without waiting for
 192          * slaves to catch up as badly.
 193          *
 194          * @param int $chunksize Number of rows to insert at once
 195          * @param int $final Total expected number of rows / id of last row,
 196          *                   used for progress reports.
 197          * @param string $table to insert on
 198          * @param string $fname function name to report in SQL
 199          * @access private
 200          */
 201         function setChunkScale( $chunksize, $final, $table, $fname ) {
 202                 $this->chunkSize  = $chunksize;
 203                 $this->chunkFinal = $final;
 204                 $this->chunkCount = 0;
 205                 $this->chunkStartTime = wfTime();
 206                 $this->chunkOptions = array( 'IGNORE' );
 207                 $this->chunkTable = $table;
 208                 $this->chunkFunction = $fname;
 209         }
 210
 211         /**
 212          * Chunked inserts: perform an insert if we've reached the chunk limit.
 213          * Prints a progress report with estimated completion time.
 214          * @param array &$chunk -- This will be emptied if an insert is done.
 215          * @param int $key A key identifier to use in progress estimation in
 216          *                 place of the number of rows inserted. Use this if
 217          *                 you provided a max key number instead of a count
 218          *                 as the final chunk number in setChunkScale()
 219          * @access private
 220          */
 221         function addChunk( &$chunk, $key = null ) {
 222                 if ( count( $chunk ) >= $this->chunkSize ) {
 223                         $this->insertChunk( $chunk );
 224
 225                         $this->chunkCount += count( $chunk );
 226                         $now = wfTime();
 227                         $delta = $now - $this->chunkStartTime;
 228                         $rate = $this->chunkCount / $delta;
 229
 230                         if ( is_null( $key ) ) {
 231                                 $completed = $this->chunkCount;
 232                         } else {
 233                                 $completed = $key;
 234                         }
 235                         $portion = $completed / $this->chunkFinal;
 236
 237                         $estimatedTotalTime = $delta / $portion;
 238                         $eta = $this->chunkStartTime + $estimatedTotalTime;
 239
 240                         printf( "%s: %6.2f%% done on %s; ETA %s [%d/%d] %.2f/sec\n",
 241                                 wfTimestamp( TS_DB, intval( $now ) ),
 242                                 $portion * 100.0,
 243                                 $this->chunkTable,
 244                                 wfTimestamp( TS_DB, intval( $eta ) ),
 245                                 $completed,
 246                                 $this->chunkFinal,
 247                                 $rate );
 248                         flush();
 249
 250                         $chunk = array();
 251                 }
 252         }
 253
 254         /**
 255          * Chunked inserts: perform an insert unconditionally, at the end, and log.
 256          * @param array &$chunk -- This will be emptied if an insert is done.
 257          * @access private
 258          */
 259         function lastChunk( &$chunk ) {
 260                 $n = count( $chunk );
 261                 if ( $n > 0 ) {
 262                         $this->insertChunk( $chunk );
 263                 }
 264                 $this->log( "100.00% done on $this->chunkTable (last chunk $n rows)." );
 265         }
 266
 267         /**
 268          * Chunked inserts: perform an insert.
 269          * @param array &$chunk -- This will be emptied if an insert is done.
 270          * @access private
 271          */
 272         function insertChunk( &$chunk ) {
 273                 // Give slaves a chance to catch up
 274                 wfWaitForSlaves( $this->maxLag );
 275                 $this->dbw->insert( $this->chunkTable, $chunk, $this->chunkFunction, $this->chunkOptions );
 276         }
 277
 278
 279         /**
 280          * Copy and transcode a table to table_temp.
 281          * @param string $name Base name of the source table
 282          * @param string $tabledef CREATE TABLE definition, w/ $1 for the name
 283          * @param array $fields set of destination fields to these constants:
 284          *              MW_UPGRADE_COPY   - straight copy
 285          *              MW_UPGRADE_ENCODE - for old Latin1 wikis, conv to UTF-8
 286          *              MW_UPGRADE_NULL   - just put NULL
 287          * @param callable $callback An optional callback to modify the data
 288          *                           or perform other processing. Func should be
 289          *                           ( object $row, array $copy ) and return $copy
 290          * @access private
 291          */
 292         function copyTable( $name, $tabledef, $fields, $callback = null ) {
 293                 $fname = 'FiveUpgrade::copyTable';
 294
 295                 $name_temp = $name . '_temp';
 296                 $this->log( "Migrating $name table to $name_temp..." );
 297
 298                 $table_temp = $this->dbw->tableName( $name_temp );
 299
 300                 // Create temporary table; we're going to copy everything in there,
 301                 // then at the end rename the final tables into place.
 302                 $def = str_replace( '$1', $table_temp, $tabledef );
 303                 $this->dbw->query( $def, $fname );
 304
 305                 $numRecords = $this->dbw->selectField( $name, 'COUNT(*)', '', $fname );
 306                 $this->setChunkScale( 100, $numRecords, $name_temp, $fname );
 307
 308                 // Pull all records from the second, streaming database connection.
 309                 $sourceFields = array_keys( array_filter( $fields,
 310                         create_function( '$x', 'return $x !== MW_UPGRADE_NULL;' ) ) );
 311                 $result = $this->dbr->select( $name,
 312                         $sourceFields,
 313                         '',
 314                         $fname );
 315
 316                 $add = array();
 317                 while ( $row = $this->dbr->fetchObject( $result ) ) {
 318                         $copy = array();
 319                         foreach ( $fields as $field => $source ) {
 320                                 if ( $source === MW_UPGRADE_COPY ) {
 321                                         $copy[$field] = $row->$field;
 322                                 } elseif ( $source === MW_UPGRADE_ENCODE ) {
 323                                         $copy[$field] = $this->conv( $row->$field );
 324                                 } elseif ( $source === MW_UPGRADE_NULL ) {
 325                                         $copy[$field] = null;
 326                                 } else {
 327                                         $this->log( "Unknown field copy type: $field => $source" );
 328                                 }
 329                         }
 330                         if ( is_callable( $callback ) ) {
 331                                 $copy = call_user_func( $callback, $row, $copy );
 332                         }
 333                         $add[] = $copy;
 334                         $this->addChunk( $add );
 335                 }
 336                 $this->lastChunk( $add );
 337
 338                 $this->log( "Done converting $name." );
 339                 $this->cleanupSwaps[] = $name;
 340         }
 341
 342         function upgradePage() {
 343                 $fname = "FiveUpgrade::upgradePage";
 344                 $chunksize = 100;
 345
 346                 if ( $this->dbw->tableExists( 'page' ) ) {
 347                         $this->log( 'Page table already exists; aborting.' );
 348                         die( -1 );
 349                 }
 350
 351                 $this->log( "Checking cur table for unique title index and applying if necessary" );
 352                 $this->checkDupes();
 353
 354                 $this->log( "...converting from cur/old to page/revision/text DB structure." );
 355
 356                 list ( $cur, $old, $page, $revision, $text ) = $this->dbw->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 357
 358                 $this->log( "Creating page and revision tables..." );
 359                 $this->dbw->query( "CREATE TABLE $page (
 360                         page_id int(8) unsigned NOT NULL auto_increment,
 361                         page_namespace int NOT NULL,
 362                         page_title varchar(255) binary NOT NULL,
 363                         page_restrictions tinyblob NOT NULL default '',
 364                         page_counter bigint(20) unsigned NOT NULL default '0',
 365                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 366                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 367                         page_random real unsigned NOT NULL,
 368                         page_touched char(14) binary NOT NULL default '',
 369                         page_latest int(8) unsigned NOT NULL,
 370                         page_len int(8) unsigned NOT NULL,
 371
 372                         PRIMARY KEY page_id (page_id),
 373                         UNIQUE INDEX name_title (page_namespace,page_title),
 374                         INDEX (page_random),
 375                         INDEX (page_len)
 376                         ) TYPE=InnoDB", $fname );
 377                 $this->dbw->query( "CREATE TABLE $revision (
 378                         rev_id int(8) unsigned NOT NULL auto_increment,
 379                         rev_page int(8) unsigned NOT NULL,
 380                         rev_text_id int(8) unsigned NOT NULL,
 381                         rev_comment tinyblob NOT NULL default '',
 382                         rev_user int(5) unsigned NOT NULL default '0',
 383                         rev_user_text varchar(255) binary NOT NULL default '',
 384                         rev_timestamp char(14) binary NOT NULL default '',
 385                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 386                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 387
 388                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 389                         UNIQUE INDEX rev_id (rev_id),
 390                         INDEX rev_timestamp (rev_timestamp),
 391                         INDEX page_timestamp (rev_page,rev_timestamp),
 392                         INDEX user_timestamp (rev_user,rev_timestamp),
 393                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 394                         ) TYPE=InnoDB", $fname );
 395
 396                 $maxold = intval( $this->dbw->selectField( 'old', 'max(old_id)', '', $fname ) );
 397                 $this->log( "Last old record is {$maxold}" );
 398
 399                 global $wgLegacySchemaConversion;
 400                 if ( $wgLegacySchemaConversion ) {
 401                         // Create HistoryBlobCurStub entries.
 402                         // Text will be pulled from the leftover 'cur' table at runtime.
 403                         echo "......Moving metadata from cur; using blob references to text in cur table.\n";
 404                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 405                         $cur_flags = "'object'";
 406                 } else {
 407                         // Copy all cur text in immediately: this may take longer but avoids
 408                         // having to keep an extra table around.
 409                         echo "......Moving text from cur.\n";
 410                         $cur_text = 'cur_text';
 411                         $cur_flags = "''";
 412                 }
 413
 414                 $maxcur = $this->dbw->selectField( 'cur', 'max(cur_id)', '', $fname );
 415                 $this->log( "Last cur entry is $maxcur" );
 416
 417                 /**
 418                  * Copy placeholder records for each page's current version into old
 419                  * Don't do any conversion here; text records are converted at runtime
 420                  * based on the flags (and may be originally binary!) while the meta
 421                  * fields will be converted in the old -> rev and cur -> page steps.
 422                  */
 423                 $this->setChunkScale( $chunksize, $maxcur, 'old', $fname );
 424                 $result = $this->dbr->query(
 425                         "SELECT cur_id, cur_namespace, cur_title, $cur_text AS text, cur_comment,
 426                         cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags AS flags
 427                         FROM $cur
 428                         ORDER BY cur_id", $fname );
 429                 $add = array();
 430                 while ( $row = $this->dbr->fetchObject( $result ) ) {
 431                         $add[] = array(
 432                                 'old_namespace'  => $row->cur_namespace,
 433                                 'old_title'      => $row->cur_title,
 434                                 'old_text'       => $row->text,
 435                                 'old_comment'    => $row->cur_comment,
 436                                 'old_user'       => $row->cur_user,
 437                                 'old_user_text'  => $row->cur_user_text,
 438                                 'old_timestamp'  => $row->cur_timestamp,
 439                                 'old_minor_edit' => $row->cur_minor_edit,
 440                                 'old_flags'      => $row->flags );
 441                         $this->addChunk( $add, $row->cur_id );
 442                 }
 443                 $this->lastChunk( $add );
 444
 445                 /**
 446                  * Copy revision metadata from old into revision.
 447                  * We'll also do UTF-8 conversion of usernames and comments.
 448                  */
 449                 # $newmaxold = $this->dbw->selectField( 'old', 'max(old_id)', '', $fname );
 450                 # $this->setChunkScale( $chunksize, $newmaxold, 'revision', $fname );
 451                 # $countold = $this->dbw->selectField( 'old', 'count(old_id)', '', $fname );
 452                 $countold = $this->dbw->selectField( 'old', 'max(old_id)', '', $fname );
 453                 $this->setChunkScale( $chunksize, $countold, 'revision', $fname );
 454
 455                 $this->log( "......Setting up revision table." );
 456                 $result = $this->dbr->query(
 457                         "SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 458                         old_timestamp, old_minor_edit
 459                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title",
 460                         $fname );
 461
 462                 $add = array();
 463                 while ( $row = $this->dbr->fetchObject( $result ) ) {
 464                         $add[] = array(
 465                                 'rev_id'         =>              $row->old_id,
 466                                 'rev_page'       =>              $row->cur_id,
 467                                 'rev_text_id'    =>              $row->old_id,
 468                                 'rev_comment'    => $this->conv( $row->old_comment ),
 469                                 'rev_user'       =>              $row->old_user,
 470                                 'rev_user_text'  => $this->conv( $row->old_user_text ),
 471                                 'rev_timestamp'  =>              $row->old_timestamp,
 472                                 'rev_minor_edit' =>              $row->old_minor_edit );
 473                         $this->addChunk( $add );
 474                 }
 475                 $this->lastChunk( $add );
 476
 477
 478                 /**
 479                  * Copy page metadata from cur into page.
 480                  * We'll also do UTF-8 conversion of titles.
 481                  */
 482                 $this->log( "......Setting up page table." );
 483                 $this->setChunkScale( $chunksize, $maxcur, 'page', $fname );
 484                 $result = $this->dbr->query( "
 485                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 486                                 cur_random, cur_touched, rev_id, LENGTH(cur_text) AS len
 487                         FROM $cur,$revision
 488                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}
 489                         ORDER BY cur_id", $fname );
 490                 $add = array();
 491                 while ( $row = $this->dbr->fetchObject( $result ) ) {
 492                         $add[] = array(
 493                                 'page_id'           =>              $row->cur_id,
 494                                 'page_namespace'    =>              $row->cur_namespace,
 495                                 'page_title'        => $this->conv( $row->cur_title ),
 496                                 'page_restrictions' =>              $row->cur_restrictions,
 497                                 'page_counter'      =>              $row->cur_counter,
 498                                 'page_is_redirect'  =>              $row->cur_is_redirect,
 499                                 'page_is_new'       =>              $row->cur_is_new,
 500                                 'page_random'       =>              $row->cur_random,
 501                                 'page_touched'      =>              $this->dbw->timestamp(),
 502                                 'page_latest'       =>              $row->rev_id,
 503                                 'page_len'          =>              $row->len );
 504                         # $this->addChunk( $add, $row->cur_id );
 505                         $this->addChunk( $add );
 506                 }
 507                 $this->lastChunk( $add );
 508
 509                 $this->log( "...done with cur/old -> page/revision." );
 510         }
 511
 512         function upgradeLinks() {
 513                 $fname = 'FiveUpgrade::upgradeLinks';
 514                 $chunksize = 200;
 515                 list ( $links, $brokenlinks, $pagelinks, $cur ) = $this->dbw->tableNamesN( 'links', 'brokenlinks', 'pagelinks', 'cur' );
 516
 517                 $this->log( 'Checking for interwiki table change in case of bogus items...' );
 518                 if ( $this->dbw->fieldExists( 'interwiki', 'iw_trans' ) ) {
 519                         $this->log( 'interwiki has iw_trans.' );
 520                 } else {
 521                         global $IP;
 522                         $this->log( 'adding iw_trans...' );
 523                         $this->dbw->sourceFile( $IP . '/maintenance/archives/patch-interwiki-trans.sql' );
 524                         $this->log( 'added iw_trans.' );
 525                 }
 526
 527                 $this->log( 'Creating pagelinks table...' );
 528                 $this->dbw->query( "
 529 CREATE TABLE $pagelinks (
 530   -- Key to the page_id of the page containing the link.
 531   pl_from int(8) unsigned NOT NULL default '0',
 532
 533   -- Key to page_namespace/page_title of the target page.
 534   -- The target page may or may not exist, and due to renames
 535   -- and deletions may refer to different page records as time
 536   -- goes by.
 537   pl_namespace int NOT NULL default '0',
 538   pl_title varchar(255) binary NOT NULL default '',
 539
 540   UNIQUE KEY pl_from(pl_from,pl_namespace,pl_title),
 541   KEY (pl_namespace,pl_title)
 542
 543 ) TYPE=InnoDB" );
 544
 545                 $this->log( 'Importing live links -> pagelinks' );
 546                 $nlinks = $this->dbw->selectField( 'links', 'count(*)', '', $fname );
 547                 if ( $nlinks ) {
 548                         $this->setChunkScale( $chunksize, $nlinks, 'pagelinks', $fname );
 549                         $result = $this->dbr->query( "
 550                           SELECT l_from,cur_namespace,cur_title
 551                                 FROM $links, $cur
 552                                 WHERE l_to=cur_id", $fname );
 553                         $add = array();
 554                         while ( $row = $this->dbr->fetchObject( $result ) ) {
 555                                 $add[] = array(
 556                                         'pl_from'      =>              $row->l_from,
 557                                         'pl_namespace' =>              $row->cur_namespace,
 558                                         'pl_title'     => $this->conv( $row->cur_title ) );
 559                                 $this->addChunk( $add );
 560                         }
 561                         $this->lastChunk( $add );
 562                 } else {
 563                         $this->log( 'no links!' );
 564                 }
 565
 566                 $this->log( 'Importing brokenlinks -> pagelinks' );
 567                 $nbrokenlinks = $this->dbw->selectField( 'brokenlinks', 'count(*)', '', $fname );
 568                 if ( $nbrokenlinks ) {
 569                         $this->setChunkScale( $chunksize, $nbrokenlinks, 'pagelinks', $fname );
 570                         $result = $this->dbr->query(
 571                                 "SELECT bl_from, bl_to FROM $brokenlinks",
 572                                 $fname );
 573                         $add = array();
 574                         while ( $row = $this->dbr->fetchObject( $result ) ) {
 575                                 $pagename = $this->conv( $row->bl_to );
 576                                 $title = Title::newFromText( $pagename );
 577                                 if ( is_null( $title ) ) {
 578                                         $this->log( "** invalid brokenlink: $row->bl_from -> '$pagename' (converted from '$row->bl_to')" );
 579                                 } else {
 580                                         $add[] = array(
 581                                                 'pl_from'      => $row->bl_from,
 582                                                 'pl_namespace' => $title->getNamespace(),
 583                                                 'pl_title'     => $title->getDBkey() );
 584                                         $this->addChunk( $add );
 585                                 }
 586                         }
 587                         $this->lastChunk( $add );
 588                 } else {
 589                         $this->log( 'no brokenlinks!' );
 590                 }
 591
 592                 $this->log( 'Done with links.' );
 593         }
 594
 595         function upgradeUser() {
 596                 // Apply unique index, if necessary:
 597                 $duper = new UserDupes( $this->dbw );
 598                 if ( $duper->hasUniqueIndex() ) {
 599                         $this->log( "Already have unique user_name index." );
 600                 } else {
 601                         $this->log( "Clearing user duplicates..." );
 602                         if ( !$duper->clearDupes() ) {
 603                                 $this->log( "WARNING: Duplicate user accounts, may explode!" );
 604                         }
 605                 }
 606
 607                 $tabledef = <<<END
 608 CREATE TABLE $1 (
 609   user_id int(5) unsigned NOT NULL auto_increment,
 610   user_name varchar(255) binary NOT NULL default '',
 611   user_real_name varchar(255) binary NOT NULL default '',
 612   user_password tinyblob NOT NULL default '',
 613   user_newpassword tinyblob NOT NULL default '',
 614   user_email tinytext NOT NULL default '',
 615   user_options blob NOT NULL default '',
 616   user_touched char(14) binary NOT NULL default '',
 617   user_token char(32) binary NOT NULL default '',
 618   user_email_authenticated CHAR(14) BINARY,
 619   user_email_token CHAR(32) BINARY,
 620   user_email_token_expires CHAR(14) BINARY,
 621
 622   PRIMARY KEY user_id (user_id),
 623   UNIQUE INDEX user_name (user_name),
 624   INDEX (user_email_token)
 625
 626 ) TYPE=InnoDB
 627 END;
 628                 $fields = array(
 629                         'user_id'                  => MW_UPGRADE_COPY,
 630                         'user_name'                => MW_UPGRADE_ENCODE,
 631                         'user_real_name'           => MW_UPGRADE_ENCODE,
 632                         'user_password'            => MW_UPGRADE_COPY,
 633                         'user_newpassword'         => MW_UPGRADE_COPY,
 634                         'user_email'               => MW_UPGRADE_ENCODE,
 635                         'user_options'             => MW_UPGRADE_ENCODE,
 636                         'user_touched'             => MW_UPGRADE_CALLBACK,
 637                         'user_token'               => MW_UPGRADE_COPY,
 638                         'user_email_authenticated' => MW_UPGRADE_CALLBACK,
 639                         'user_email_token'         => MW_UPGRADE_NULL,
 640                         'user_email_token_expires' => MW_UPGRADE_NULL );
 641                 $this->copyTable( 'user', $tabledef, $fields,
 642                         array( &$this, 'userCallback' ) );
 643         }
 644
 645         function userCallback( $row, $copy ) {
 646                 $now = $this->dbw->timestamp();
 647                 $copy['user_touched'] = $now;
 648                 $copy['user_email_authenticated'] = $this->emailAuth ? $now : null;
 649                 return $copy;
 650         }
 651
 652         function upgradeImage() {
 653                 $tabledef = <<<END
 654 CREATE TABLE $1 (
 655   img_name varchar(255) binary NOT NULL default '',
 656   img_size int(8) unsigned NOT NULL default '0',
 657   img_width int(5)  NOT NULL default '0',
 658   img_height int(5)  NOT NULL default '0',
 659   img_metadata mediumblob NOT NULL,
 660   img_bits int(3)  NOT NULL default '0',
 661   img_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
 662   img_major_mime ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") NOT NULL default "unknown",
 663   img_minor_mime varchar(32) NOT NULL default "unknown",
 664   img_description tinyblob NOT NULL default '',
 665   img_user int(5) unsigned NOT NULL default '0',
 666   img_user_text varchar(255) binary NOT NULL default '',
 667   img_timestamp char(14) binary NOT NULL default '',
 668
 669   PRIMARY KEY img_name (img_name),
 670   INDEX img_size (img_size),
 671   INDEX img_timestamp (img_timestamp)
 672 ) TYPE=InnoDB
 673 END;
 674                 $fields = array(
 675                         'img_name'        => MW_UPGRADE_ENCODE,
 676                         'img_size'        => MW_UPGRADE_COPY,
 677                         'img_width'       => MW_UPGRADE_CALLBACK,
 678                         'img_height'      => MW_UPGRADE_CALLBACK,
 679                         'img_metadata'    => MW_UPGRADE_CALLBACK,
 680                         'img_bits'        => MW_UPGRADE_CALLBACK,
 681                         'img_media_type'  => MW_UPGRADE_CALLBACK,
 682                         'img_major_mime'  => MW_UPGRADE_CALLBACK,
 683                         'img_minor_mime'  => MW_UPGRADE_CALLBACK,
 684                         'img_description' => MW_UPGRADE_ENCODE,
 685                         'img_user'        => MW_UPGRADE_COPY,
 686                         'img_user_text'   => MW_UPGRADE_ENCODE,
 687                         'img_timestamp'   => MW_UPGRADE_COPY );
 688                 $this->copyTable( 'image', $tabledef, $fields,
 689                         array( &$this, 'imageCallback' ) );
 690         }
 691
 692         function imageCallback( $row, $copy ) {
 693                 global $options;
 694                 if ( !isset( $options['noimage'] ) ) {
 695                         // Fill in the new image info fields
 696                         $info = $this->imageInfo( $row->img_name );
 697
 698                         $copy['img_width'     ] = $info['width'];
 699                         $copy['img_height'    ] = $info['height'];
 700                         $copy['img_metadata'  ] = ""; // loaded on-demand
 701                         $copy['img_bits'      ] = $info['bits'];
 702                         $copy['img_media_type'] = $info['media'];
 703                         $copy['img_major_mime'] = $info['major'];
 704                         $copy['img_minor_mime'] = $info['minor'];
 705                 }
 706
 707                 // If doing UTF8 conversion the file must be renamed
 708                 $this->renameFile( $row->img_name, 'wfImageDir' );
 709
 710                 return $copy;
 711         }
 712
 713         function imageInfo( $filename ) {
 714                 $info = array(
 715                         'width'  => 0,
 716                         'height' => 0,
 717                         'bits'   => 0,
 718                         'media'  => '',
 719                         'major'  => '',
 720                         'minor'  => '' );
 721
 722                 $magic = MimeMagic::singleton();
 723                 $mime = $magic->guessMimeType( $filename, true );
 724                 list( $info['major'], $info['minor'] ) = explode( '/', $mime );
 725
 726                 $info['media'] = $magic->getMediaType( $filename, $mime );
 727
 728                 $image = UnregisteredLocalFile::newFromPath( $filename, $mime );
 729
 730                 $info['width'] = $image->getWidth();
 731                 $info['height'] = $image->getHeight();
 732
 733                 $gis = $image->getImageSize( $filename );
 734                 if ( isset( $gis['bits'] ) ) {
 735                         $info['bits'] = $gis['bits'];
 736                 }
 737
 738                 return $info;
 739         }
 740
 741
 742         /**
 743          * Truncate a table.
 744          * @param string $table The table name to be truncated
 745          */
 746         function clearTable( $table ) {
 747                 print "Clearing $table...\n";
 748                 $tableName = $this->db->tableName( $table );
 749                 $this->db->query( "TRUNCATE $tableName" );
 750         }
 751
 752         /**
 753          * Rename a given image or archived image file to the converted filename,
 754          * leaving a symlink for URL compatibility.
 755          *
 756          * @param string $oldname pre-conversion filename
 757          * @param string $basename pre-conversion base filename for dir hashing, if an archive
 758          * @access private
 759          */
 760         function renameFile( $oldname, $subdirCallback = 'wfImageDir', $basename = null ) {
 761                 $newname = $this->conv( $oldname );
 762                 if ( $newname == $oldname ) {
 763                         // No need to rename; another field triggered this row.
 764                         return false;
 765                 }
 766
 767                 if ( is_null( $basename ) ) $basename = $oldname;
 768                 $ubasename = $this->conv( $basename );
 769                 $oldpath = call_user_func( $subdirCallback, $basename ) . '/' . $oldname;
 770                 $newpath = call_user_func( $subdirCallback, $ubasename ) . '/' . $newname;
 771
 772                 $this->log( "$oldpath -> $newpath" );
 773                 if ( rename( $oldpath, $newpath ) ) {
 774                         $relpath = wfRelativePath( $newpath, dirname( $oldpath ) );
 775                         if ( !symlink( $relpath, $oldpath ) ) {
 776                                 $this->log( "... symlink failed!" );
 777                         }
 778                         return $newname;
 779                 } else {
 780                         $this->log( "... rename failed!" );
 781                         return false;
 782                 }
 783         }
 784
 785         function upgradeOldImage() {
 786                 $tabledef = <<<END
 787 CREATE TABLE $1 (
 788   -- Base filename: key to image.img_name
 789   oi_name varchar(255) binary NOT NULL default '',
 790
 791   -- Filename of the archived file.
 792   -- This is generally a timestamp and '!' prepended to the base name.
 793   oi_archive_name varchar(255) binary NOT NULL default '',
 794
 795   -- Other fields as in image...
 796   oi_size int(8) unsigned NOT NULL default 0,
 797   oi_width int(5) NOT NULL default 0,
 798   oi_height int(5) NOT NULL default 0,
 799   oi_bits int(3) NOT NULL default 0,
 800   oi_description tinyblob NOT NULL default '',
 801   oi_user int(5) unsigned NOT NULL default '0',
 802   oi_user_text varchar(255) binary NOT NULL default '',
 803   oi_timestamp char(14) binary NOT NULL default '',
 804
 805   INDEX oi_name (oi_name(10))
 806
 807 ) TYPE=InnoDB;
 808 END;
 809                 $fields = array(
 810                         'oi_name'         => MW_UPGRADE_ENCODE,
 811                         'oi_archive_name' => MW_UPGRADE_ENCODE,
 812                         'oi_size'         => MW_UPGRADE_COPY,
 813                         'oi_width'        => MW_UPGRADE_CALLBACK,
 814                         'oi_height'       => MW_UPGRADE_CALLBACK,
 815                         'oi_bits'         => MW_UPGRADE_CALLBACK,
 816                         'oi_description'  => MW_UPGRADE_ENCODE,
 817                         'oi_user'         => MW_UPGRADE_COPY,
 818                         'oi_user_text'    => MW_UPGRADE_ENCODE,
 819                         'oi_timestamp'    => MW_UPGRADE_COPY );
 820                 $this->copyTable( 'oldimage', $tabledef, $fields,
 821                         array( &$this, 'oldimageCallback' ) );
 822         }
 823
 824         function oldimageCallback( $row, $copy ) {
 825                 global $options;
 826                 if ( !isset( $options['noimage'] ) ) {
 827                         // Fill in the new image info fields
 828                         $info = $this->imageInfo( $row->oi_archive_name, 'wfImageArchiveDir', $row->oi_name );
 829                         $copy['oi_width' ] = $info['width' ];
 830                         $copy['oi_height'] = $info['height'];
 831                         $copy['oi_bits'  ] = $info['bits'  ];
 832                 }
 833
 834                 // If doing UTF8 conversion the file must be renamed
 835                 $this->renameFile( $row->oi_archive_name, 'wfImageArchiveDir', $row->oi_name );
 836
 837                 return $copy;
 838         }
 839
 840
 841         function upgradeWatchlist() {
 842                 $fname = 'FiveUpgrade::upgradeWatchlist';
 843                 $chunksize = 100;
 844
 845                 list ( $watchlist, $watchlist_temp ) = $this->dbw->tableNamesN( 'watchlist', 'watchlist_temp' );
 846
 847                 $this->log( 'Migrating watchlist table to watchlist_temp...' );
 848                 $this->dbw->query(
 849 "CREATE TABLE $watchlist_temp (
 850   -- Key to user_id
 851   wl_user int(5) unsigned NOT NULL,
 852
 853   -- Key to page_namespace/page_title
 854   -- Note that users may watch patches which do not exist yet,
 855   -- or existed in the past but have been deleted.
 856   wl_namespace int NOT NULL default '0',
 857   wl_title varchar(255) binary NOT NULL default '',
 858
 859   -- Timestamp when user was last sent a notification e-mail;
 860   -- cleared when the user visits the page.
 861   -- FIXME: add proper null support etc
 862   wl_notificationtimestamp varchar(14) binary NOT NULL default '0',
 863
 864   UNIQUE KEY (wl_user, wl_namespace, wl_title),
 865   KEY namespace_title (wl_namespace,wl_title)
 866
 867 ) TYPE=InnoDB;", $fname );
 868
 869                 // Fix encoding for Latin-1 upgrades, add some fields,
 870                 // and double article to article+talk pairs
 871                 $numwatched = $this->dbw->selectField( 'watchlist', 'count(*)', '', $fname );
 872
 873                 $this->setChunkScale( $chunksize, $numwatched * 2, 'watchlist_temp', $fname );
 874                 $result = $this->dbr->select( 'watchlist',
 875                         array(
 876                                 'wl_user',
 877                                 'wl_namespace',
 878                                 'wl_title' ),
 879                         '',
 880                         $fname );
 881
 882                 $add = array();
 883                 while ( $row = $this->dbr->fetchObject( $result ) ) {
 884                         $add[] = array(
 885                                 'wl_user'      =>                          $row->wl_user,
 886                                 'wl_namespace' => MWNamespace::getSubject( $row->wl_namespace ),
 887                                 'wl_title'     =>             $this->conv( $row->wl_title ),
 888                                 'wl_notificationtimestamp' =>              '0' );
 889                         $this->addChunk( $add );
 890
 891                         $add[] = array(
 892                                 'wl_user'      =>                          $row->wl_user,
 893                                 'wl_namespace' =>    MWNamespace::getTalk( $row->wl_namespace ),
 894                                 'wl_title'     =>             $this->conv( $row->wl_title ),
 895                                 'wl_notificationtimestamp' =>              '0' );
 896                         $this->addChunk( $add );
 897                 }
 898                 $this->lastChunk( $add );
 899
 900                 $this->log( 'Done converting watchlist.' );
 901                 $this->cleanupSwaps[] = 'watchlist';
 902         }
 903
 904         function upgradeLogging() {
 905                 $tabledef = <<<ENDS
 906 CREATE TABLE $1 (
 907   -- Symbolic keys for the general log type and the action type
 908   -- within the log. The output format will be controlled by the
 909   -- action field, but only the type controls categorization.
 910   log_type char(10) NOT NULL default '',
 911   log_action char(10) NOT NULL default '',
 912
 913   -- Timestamp. Duh.
 914   log_timestamp char(14) NOT NULL default '19700101000000',
 915
 916   -- The user who performed this action; key to user_id
 917   log_user int unsigned NOT NULL default 0,
 918
 919   -- Key to the page affected. Where a user is the target,
 920   -- this will point to the user page.
 921   log_namespace int NOT NULL default 0,
 922   log_title varchar(255) binary NOT NULL default '',
 923
 924   -- Freeform text. Interpreted as edit history comments.
 925   log_comment varchar(255) NOT NULL default '',
 926
 927   -- LF separated list of miscellaneous parameters
 928   log_params blob NOT NULL default '',
 929
 930   KEY type_time (log_type, log_timestamp),
 931   KEY user_time (log_user, log_timestamp),
 932   KEY page_time (log_namespace, log_title, log_timestamp)
 933
 934 ) TYPE=InnoDB
 935 ENDS;
 936                 $fields = array(
 937                         'log_type'      => MW_UPGRADE_COPY,
 938                         'log_action'    => MW_UPGRADE_COPY,
 939                         'log_timestamp' => MW_UPGRADE_COPY,
 940                         'log_user'      => MW_UPGRADE_COPY,
 941                         'log_namespace' => MW_UPGRADE_COPY,
 942                         'log_title'     => MW_UPGRADE_ENCODE,
 943                         'log_comment'   => MW_UPGRADE_ENCODE,
 944                         'log_params'    => MW_UPGRADE_ENCODE );
 945                 $this->copyTable( 'logging', $tabledef, $fields );
 946         }
 947
 948         function upgradeArchive() {
 949                 $tabledef = <<<ENDS
 950 CREATE TABLE $1 (
 951   ar_namespace int NOT NULL default '0',
 952   ar_title varchar(255) binary NOT NULL default '',
 953   ar_text mediumblob NOT NULL default '',
 954
 955   ar_comment tinyblob NOT NULL default '',
 956   ar_user int(5) unsigned NOT NULL default '0',
 957   ar_user_text varchar(255) binary NOT NULL,
 958   ar_timestamp char(14) binary NOT NULL default '',
 959   ar_minor_edit tinyint(1) NOT NULL default '0',
 960
 961   ar_flags tinyblob NOT NULL default '',
 962
 963   ar_rev_id int(8) unsigned,
 964   ar_text_id int(8) unsigned,
 965
 966   KEY name_title_timestamp (ar_namespace,ar_title,ar_timestamp)
 967
 968 ) TYPE=InnoDB
 969 ENDS;
 970                 $fields = array(
 971                         'ar_namespace'  => MW_UPGRADE_COPY,
 972                         'ar_title'      => MW_UPGRADE_ENCODE,
 973                         'ar_text'       => MW_UPGRADE_COPY,
 974                         'ar_comment'    => MW_UPGRADE_ENCODE,
 975                         'ar_user'       => MW_UPGRADE_COPY,
 976                         'ar_user_text'  => MW_UPGRADE_ENCODE,
 977                         'ar_timestamp'  => MW_UPGRADE_COPY,
 978                         'ar_minor_edit' => MW_UPGRADE_COPY,
 979                         'ar_flags'      => MW_UPGRADE_COPY,
 980                         'ar_rev_id'     => MW_UPGRADE_NULL,
 981                         'ar_text_id'    => MW_UPGRADE_NULL );
 982                 $this->copyTable( 'archive', $tabledef, $fields );
 983         }
 984
 985         function upgradeImagelinks() {
 986                 global $wgUseLatin1;
 987                 if ( $wgUseLatin1 ) {
 988                         $tabledef = <<<ENDS
 989 CREATE TABLE $1 (
 990   -- Key to page_id of the page containing the image / media link.
 991   il_from int(8) unsigned NOT NULL default '0',
 992
 993   -- Filename of target image.
 994   -- This is also the page_title of the file's description page;
 995   -- all such pages are in namespace 6 (NS_FILE).
 996   il_to varchar(255) binary NOT NULL default '',
 997
 998   UNIQUE KEY il_from(il_from,il_to),
 999   KEY (il_to)
1000
1001 ) TYPE=InnoDB
1002 ENDS;
1003                         $fields = array(
1004                                 'il_from' => MW_UPGRADE_COPY,
1005                                 'il_to'   => MW_UPGRADE_ENCODE );
1006                         $this->copyTable( 'imagelinks', $tabledef, $fields );
1007                 }
1008         }
1009
1010         function upgradeCategorylinks() {
1011                 global $wgUseLatin1;
1012                 if ( $wgUseLatin1 ) {
1013                         $tabledef = <<<ENDS
1014 CREATE TABLE $1 (
1015   cl_from int(8) unsigned NOT NULL default '0',
1016   cl_to varchar(255) binary NOT NULL default '',
1017   cl_sortkey varchar(86) binary NOT NULL default '',
1018   cl_timestamp timestamp NOT NULL,
1019
1020   UNIQUE KEY cl_from(cl_from,cl_to),
1021   KEY cl_sortkey(cl_to,cl_sortkey),
1022   KEY cl_timestamp(cl_to,cl_timestamp)
1023 ) TYPE=InnoDB
1024 ENDS;
1025                         $fields = array(
1026                                 'cl_from'      => MW_UPGRADE_COPY,
1027                                 'cl_to'        => MW_UPGRADE_ENCODE,
1028                                 'cl_sortkey'   => MW_UPGRADE_ENCODE,
1029                                 'cl_timestamp' => MW_UPGRADE_COPY );
1030                         $this->copyTable( 'categorylinks', $tabledef, $fields );
1031                 }
1032         }
1033
1034         function upgradeIpblocks() {
1035                 global $wgUseLatin1;
1036                 if ( $wgUseLatin1 ) {
1037                         $tabledef = <<<ENDS
1038 CREATE TABLE $1 (
1039   ipb_id int(8) NOT NULL auto_increment,
1040   ipb_address varchar(40) binary NOT NULL default '',
1041   ipb_user int(8) unsigned NOT NULL default '0',
1042   ipb_by int(8) unsigned NOT NULL default '0',
1043   ipb_reason tinyblob NOT NULL default '',
1044   ipb_timestamp char(14) binary NOT NULL default '',
1045   ipb_auto tinyint(1) NOT NULL default '0',
1046   ipb_expiry char(14) binary NOT NULL default '',
1047
1048   PRIMARY KEY ipb_id (ipb_id),
1049   INDEX ipb_address (ipb_address),
1050   INDEX ipb_user (ipb_user)
1051
1052 ) TYPE=InnoDB
1053 ENDS;
1054                         $fields = array(
1055                                 'ipb_id'        => MW_UPGRADE_COPY,
1056                                 'ipb_address'   => MW_UPGRADE_COPY,
1057                                 'ipb_user'      => MW_UPGRADE_COPY,
1058                                 'ipb_by'        => MW_UPGRADE_COPY,
1059                                 'ipb_reason'    => MW_UPGRADE_ENCODE,
1060                                 'ipb_timestamp' => MW_UPGRADE_COPY,
1061                                 'ipb_auto'      => MW_UPGRADE_COPY,
1062                                 'ipb_expiry'    => MW_UPGRADE_COPY );
1063                         $this->copyTable( 'ipblocks', $tabledef, $fields );
1064                 }
1065         }
1066
1067         function upgradeRecentchanges() {
1068                 // There's a format change in the namespace field
1069                 $tabledef = <<<ENDS
1070 CREATE TABLE $1 (
1071   rc_id int(8) NOT NULL auto_increment,
1072   rc_timestamp varchar(14) binary NOT NULL default '',
1073   rc_cur_time varchar(14) binary NOT NULL default '',
1074
1075   rc_user int(10) unsigned NOT NULL default '0',
1076   rc_user_text varchar(255) binary NOT NULL default '',
1077
1078   rc_namespace int NOT NULL default '0',
1079   rc_title varchar(255) binary NOT NULL default '',
1080
1081   rc_comment varchar(255) binary NOT NULL default '',
1082   rc_minor tinyint(3) unsigned NOT NULL default '0',
1083
1084   rc_bot tinyint(3) unsigned NOT NULL default '0',
1085   rc_new tinyint(3) unsigned NOT NULL default '0',
1086
1087   rc_cur_id int(10) unsigned NOT NULL default '0',
1088   rc_this_oldid int(10) unsigned NOT NULL default '0',
1089   rc_last_oldid int(10) unsigned NOT NULL default '0',
1090
1091   rc_type tinyint(3) unsigned NOT NULL default '0',
1092   rc_moved_to_ns tinyint(3) unsigned NOT NULL default '0',
1093   rc_moved_to_title varchar(255) binary NOT NULL default '',
1094
1095   rc_patrolled tinyint(3) unsigned NOT NULL default '0',
1096
1097   rc_ip char(15) NOT NULL default '',
1098
1099   PRIMARY KEY rc_id (rc_id),
1100   INDEX rc_timestamp (rc_timestamp),
1101   INDEX rc_namespace_title (rc_namespace, rc_title),
1102   INDEX rc_cur_id (rc_cur_id),
1103   INDEX new_name_timestamp(rc_new,rc_namespace,rc_timestamp),
1104   INDEX rc_ip (rc_ip)
1105
1106 ) TYPE=InnoDB
1107 ENDS;
1108                 $fields = array(
1109                         'rc_id'             => MW_UPGRADE_COPY,
1110                         'rc_timestamp'      => MW_UPGRADE_COPY,
1111                         'rc_cur_time'       => MW_UPGRADE_COPY,
1112                         'rc_user'           => MW_UPGRADE_COPY,
1113                         'rc_user_text'      => MW_UPGRADE_ENCODE,
1114                         'rc_namespace'      => MW_UPGRADE_COPY,
1115                         'rc_title'          => MW_UPGRADE_ENCODE,
1116                         'rc_comment'        => MW_UPGRADE_ENCODE,
1117                         'rc_minor'          => MW_UPGRADE_COPY,
1118                         'rc_bot'            => MW_UPGRADE_COPY,
1119                         'rc_new'            => MW_UPGRADE_COPY,
1120                         'rc_cur_id'         => MW_UPGRADE_COPY,
1121                         'rc_this_oldid'     => MW_UPGRADE_COPY,
1122                         'rc_last_oldid'     => MW_UPGRADE_COPY,
1123                         'rc_type'           => MW_UPGRADE_COPY,
1124                         'rc_moved_to_ns'    => MW_UPGRADE_COPY,
1125                         'rc_moved_to_title' => MW_UPGRADE_ENCODE,
1126                         'rc_patrolled'      => MW_UPGRADE_COPY,
1127                         'rc_ip'             => MW_UPGRADE_COPY );
1128                 $this->copyTable( 'recentchanges', $tabledef, $fields );
1129         }
1130
1131         function upgradeQuerycache() {
1132                 // There's a format change in the namespace field
1133                 $tabledef = <<<ENDS
1134 CREATE TABLE $1 (
1135   -- A key name, generally the base name of of the special page.
1136   qc_type char(32) NOT NULL,
1137
1138   -- Some sort of stored value. Sizes, counts...
1139   qc_value int(5) unsigned NOT NULL default '0',
1140
1141   -- Target namespace+title
1142   qc_namespace int NOT NULL default '0',
1143   qc_title char(255) binary NOT NULL default '',
1144
1145   KEY (qc_type,qc_value)
1146
1147 ) TYPE=InnoDB
1148 ENDS;
1149                 $fields = array(
1150                         'qc_type'      => MW_UPGRADE_COPY,
1151                         'qc_value'     => MW_UPGRADE_COPY,
1152                         'qc_namespace' => MW_UPGRADE_COPY,
1153                         'qc_title'     => MW_UPGRADE_ENCODE );
1154                 $this->copyTable( 'querycache', $tabledef, $fields );
1155         }
1156
1157         /**
1158          * Check for duplicate rows in "cur" table and move duplicates entries in
1159          * "old" table.
1160          *
1161          * This was in cleanupDupes.inc before.
1162          */
1163         function checkDupes() {
1164                 $dbw = wfGetDB( DB_MASTER );
1165                 if ( $dbw->indexExists( 'cur', 'name_title' ) &&
1166                         $dbw->indexUnique( 'cur', 'name_title' ) ) {
1167                         echo wfWikiID() . ": cur table has the current unique index; no duplicate entries.\n";
1168                         return;
1169                 } elseif ( $dbw->indexExists( 'cur', 'name_title_dup_prevention' ) ) {
1170                         echo wfWikiID() . ": cur table has a temporary name_title_dup_prevention unique index; no duplicate entries.\n";
1171                         return;
1172                 }
1173
1174                 echo wfWikiID() . ": cur table has the old non-unique index and may have duplicate entries.\n";
1175
1176                 $dbw = wfGetDB( DB_MASTER );
1177                 $cur = $dbw->tableName( 'cur' );
1178                 $old = $dbw->tableName( 'old' );
1179                 $dbw->query( "LOCK TABLES $cur WRITE, $old WRITE" );
1180                 echo "Checking for duplicate cur table entries... (this may take a while on a large wiki)\n";
1181                 $res = $dbw->query( <<<END
1182 SELECT cur_namespace,cur_title,count(*) as c,min(cur_id) as id
1183   FROM $cur
1184  GROUP BY cur_namespace,cur_title
1185 HAVING c > 1
1186 END
1187                 );
1188                 $n = $dbw->numRows( $res );
1189                 echo "Found $n titles with duplicate entries.\n";
1190                 if ( $n > 0 ) {
1191                         echo "Correcting...\n";
1192                         while ( $row = $dbw->fetchObject( $res ) ) {
1193                                 $ns = intval( $row->cur_namespace );
1194                                 $title = $dbw->addQuotes( $row->cur_title );
1195
1196                                 # Get the first responding ID; that'll be the one we keep.
1197                                 $id = $dbw->selectField( 'cur', 'cur_id', array(
1198                                         'cur_namespace' => $row->cur_namespace,
1199                                         'cur_title'     => $row->cur_title ) );
1200
1201                                 echo "$ns:$row->cur_title (canonical ID $id)\n";
1202                                 if ( $id != $row->id ) {
1203                                         echo "  ** minimum ID $row->id; ";
1204                                         $timeMin = $dbw->selectField( 'cur', 'cur_timestamp', array(
1205                                                 'cur_id' => $row->id ) );
1206                                         $timeFirst = $dbw->selectField( 'cur', 'cur_timestamp', array(
1207                                                 'cur_id' => $id ) );
1208                                         if ( $timeMin == $timeFirst ) {
1209                                                 echo "timestamps match at $timeFirst; ok\n";
1210                                         } else {
1211                                                 echo "timestamps don't match! min: $timeMin, first: $timeFirst; ";
1212                                                 if ( $timeMin > $timeFirst ) {
1213                                                         $id = $row->id;
1214                                                         echo "keeping minimum: $id\n";
1215                                                 } else {
1216                                                         echo "keeping first: $id\n";
1217                                                 }
1218                                         }
1219                                 }
1220
1221                                 $dbw->query( <<<END
1222 INSERT
1223   INTO $old
1224       (old_namespace, old_title,      old_text,
1225        old_comment,   old_user,       old_user_text,
1226        old_timestamp, old_minor_edit, old_flags,
1227        inverse_timestamp)
1228 SELECT cur_namespace, cur_title,      cur_text,
1229        cur_comment,   cur_user,       cur_user_text,
1230        cur_timestamp, cur_minor_edit, '',
1231        inverse_timestamp
1232   FROM $cur
1233  WHERE cur_namespace=$ns
1234    AND cur_title=$title
1235    AND cur_id != $id
1236 END
1237                                 );
1238                                 $dbw->query( <<<END
1239 DELETE
1240   FROM $cur
1241  WHERE cur_namespace=$ns
1242    AND cur_title=$title
1243    AND cur_id != $id
1244 END
1245                                         );
1246                         }
1247                 }
1248                 $dbw->query( 'UNLOCK TABLES' );
1249                 echo "Done.\n";
1250         }
1251
1252         /**
1253          * Rename all our temporary tables into final place.
1254          * We've left things in place so a read-only wiki can continue running
1255          * on the old code during all this.
1256          */
1257         function upgradeCleanup() {
1258                 $this->renameTable( 'old', 'text' );
1259
1260                 foreach ( $this->cleanupSwaps as $table ) {
1261                         $this->swap( $table );
1262                 }
1263         }
1264
1265         function renameTable( $from, $to ) {
1266                 $this->log( "Renaming $from to $to..." );
1267
1268                 $fromtable = $this->dbw->tableName( $from );
1269                 $totable   = $this->dbw->tableName( $to );
1270                 $this->dbw->query( "ALTER TABLE $fromtable RENAME TO $totable" );
1271         }
1272
1273         function swap( $base ) {
1274                 $this->renameTable( $base, "{$base}_old" );
1275                 $this->renameTable( "{$base}_temp", $base );
1276         }
1277
1278 }