includes/SpecialMovepage.php

   1 <?
   2 include_once( "LinksUpdate.php" );
   3
   4 function wfSpecialMovepage()
   5 {
   6         global $wgUser, $wgOut, $action, $target;
   7
   8         if ( 0 == $wgUser->getID() or $wgUser->isBlocked() ) {
   9                 $wgOut->errorpage( "movenologin", "movenologintext" );
  10                 return;
  11         }
  12         if ( wfReadOnly() ) {
  13                 $wgOut->readOnlyPage();
  14                 return;
  15         }
  16         $fields = array( "wpNewTitle", "wpOldTitle" );
  17         wfCleanFormFields( $fields );
  18
  19         $f = new MovePageForm();
  20
  21         if ( "success" == $action ) { $f->showSuccess(); }
  22         else if ( "submit" == $action ) { $f->doSubmit(); }
  23         else { $f->showForm( "" ); }
  24 }
  25
  26 class MovePageForm {
  27
  28         var $ot, $nt;           # Old, new Title objects
  29         var $ons, $nns;         # Namespaces
  30         var $odt, $ndt;         # Pagenames (dbkey form)
  31         var $oft, $nft;         # Full page titles (DBkey form)
  32         var $ofx, $nfx;         # Full page titles (Text form)
  33         var $oldid, $newid;     # "cur_id" field (yes, both from "cur")
  34         var $talkmoved = 0;
  35
  36         function showForm( $err )
  37         {
  38                 global $wgOut, $wgUser, $wgLang;
  39                 global $wpNewTitle, $wpOldTitle, $wpMovetalk, $target;
  40
  41                 $wgOut->setPagetitle( wfMsg( "movepage" ) );
  42
  43                 if ( ! $wpOldTitle ) {
  44                         $target = wfCleanQueryVar( $target );
  45                         if ( "" == $target ) {
  46                                 $wgOut->errorpage( "notargettitle", "notargettext" );
  47                                 return;
  48                         }
  49                         $wpOldTitle = $target;
  50                 }
  51                 $ot = Title::newFromURL( $wpOldTitle );
  52                 $ott = $ot->getPrefixedText();
  53
  54                 $wgOut->addWikiText( wfMsg( "movepagetext" ) );
  55                 if ( ! Namespace::isTalk( $ot->getNamespace() ) )
  56                         $wgOut->addWikiText( "\n\n" . wfMsg( "movepagetalktext" ) );
  57
  58                 $ma = wfMsg( "movearticle" );
  59                 $newt = wfMsg( "newtitle" );
  60                 $mpb = wfMsg( "movepagebtn" );
  61                 $movetalk = wfMsg( "movetalk" );
  62
  63                 $action = wfLocalUrlE( $wgLang->specialPage( "Movepage" ),
  64                   "action=submit" );
  65
  66                 if ( "" != $err ) {
  67                         $wgOut->setSubtitle( wfMsg( "formerror" ) );
  68                         $wgOut->addHTML( "<p><font color='red' size='+1'>{$err}</font>\n" );
  69                 }
  70                 $wgOut->addHTML( "<p>
  71 <form id=\"movepage\" method=\"post\" action=\"{$action}\">
  72 <table border=0><tr>
  73 <td align=right>{$ma}:</td>
  74 <td align=left><strong>{$ott}</strong></td>
  75 </tr><tr>
  76 <td align=right>{$newt}:</td>
  77 <td align=left>
  78 <input type=text size=40 name=\"wpNewTitle\" value=\"{$wpNewTitle}\">
  79 <input type=hidden name=\"wpOldTitle\" value=\"{$wpOldTitle}\">
  80 </td>
  81 </tr>" );
  82
  83                 if ( ! Namespace::isTalk( $ot->getNamespace() ) ) {
  84                         $wgOut->addHTML(
  85 "<tr>
  86 <td align=right>
  87 <input type=checkbox name=\"wpMovetalk\" checked value=\"1\">
  88 </td><td>{$movetalk}</td>
  89 </tr>" );
  90                 }
  91                 $wgOut->addHTML(
  92 "<tr>
  93 <td>&nbsp;</td><td align=left>
  94 <input type=submit name=\"wpMove\" value=\"{$mpb}\">
  95 </td></tr></table>
  96 </form>\n" );
  97
  98         }
  99
 100         function doSubmit()
 101         {
 102                 global $wgOut, $wgUser, $wgLang;
 103                 global $wpNewTitle, $wpOldTitle, $wpMovetalk, $target;
 104                 global $wgDeferredUpdateList;
 105                 $fname = "MovePageForm::doSubmit";
 106
 107                 $this->ot = Title::newFromText( $wpOldTitle );
 108                 $this->nt = Title::newFromText( $wpNewTitle );
 109                 $this->ons = $this->ot->getNamespace();
 110                 $this->nns = $this->nt->getNamespace();
 111                 $this->odt = wfStrencode( $this->ot->getDBkey() );
 112                 $this->ndt = wfStrencode( $this->nt->getDBkey() );
 113                 $this->oft = wfStrencode( $this->ot->getPrefixedDBkey() );
 114                 $this->nft = wfStrencode( $this->nt->getPrefixedDBkey() );
 115                 $this->ofx = $this->ot->getPrefixedText();
 116                 $this->nfx = $this->nt->getPrefixedText();
 117
 118                 $this->oldid = $this->ot->getArticleID();
 119                 $this->newid = $this->nt->getArticleID();
 120
 121                 if ( strlen( trim( $this->ndt ) ) < 1 ) {
 122                         $this->showForm( wfMsg( "articleexists" ) );
 123                         return;
 124                 }
 125                 if ( ( ! Namespace::isMovable( $this->ons ) ) ||
 126                          ( "" == $this->odt ) ||
 127                          ( "" != $this->ot->getInterwiki() ) ||
 128                      ( ! Namespace::isMovable( $nns ) ) ||
 129                          ( "" == $this->ndt ) ||
 130                          ( "" != $this->nt->getInterwiki() ) ) {
 131                         $this->showForm( wfMsg( "badarticleerror" ) );
 132                         return;
 133                 }
 134                 # The move is allowed only if (1) the target doesn't exist, or
 135                 # (2) the target is a redirect to the source, and has no history
 136                 # (so we can undo bad moves right after they're done).
 137
 138                 if ( 0 != $this->newid ) { # Target exists; check for validity
 139                         if ( ! $this->isValidTarget() ) {
 140                                 $this->showForm( wfMsg( "articleexists" ) );
 141                                 return;
 142                         }
 143                         $this->moveOverExistingRedirect();
 144                 } else { # Target didn't exist, do normal move.
 145                         $this->moveToNewTitle();
 146                 }
 147
 148                 $this->updateWatchlists();
 149
 150                 $u = new SearchUpdate( $this->oldid, $this->nt->getPrefixedDBkey() );
 151                 $u->doUpdate();
 152                 $u = new SearchUpdate( $this->newid, $this->ot->getPrefixedDBkey(), "" );
 153                 $u->doUpdate();
 154
 155                 # Move talk page if (1) the checkbox says to, (2) the source
 156                 # and target namespaces are identical, (3) the namespaces are not
 157                 # themselves talk namespaces, and of course (4) it exists.
 158
 159                 if ( ( 1 == $wpMovetalk ) &&
 160                          ( ! Namespace::isTalk( $this->ons ) ) &&
 161                          ( $this->ons == $this->nns ) ) {
 162
 163                         $this->ons = $this->nns = Namespace::getTalk( $this->ons );
 164
 165                         $this->ot = Title::newFromText( Title::makeName(
 166                           $this->ons, $wpOldTitle ) );
 167                         $this->nt = Title::newFromText( Title::makeName(
 168                           $this->nns, $wpNewTitle ) );
 169
 170                         # odt, ndt, ofx, nfx remain the same
 171
 172                         $this->oft = wfStrencode( $this->ot->getPrefixedDBkey() );
 173                         $this->nft = wfStrencode( $this->nt->getPrefixedDBkey() );
 174
 175                         $this->oldid = $this->ot->getArticleID();
 176                         $this->newid = $this->nt->getArticleID();
 177
 178                         if ( 0 != $this->oldid ) {
 179                                 if ( 0 != $this->newid ) {
 180                                         if ( $this->isValidTarget() ) {
 181                                                 $this->moveOverExistingRedirect();
 182                                                 $this->talkmoved = 1;
 183                                         } else {
 184                                                 $this->talkmoved = 'invalid';
 185                                         }
 186                                 } else {
 187                                         $this->moveToNewTitle();
 188                                         $this->talkmoved = 1;
 189                                 }
 190                                 $u = new SearchUpdate( $this->oldid, $this->nt->getPrefixedDBkey() );
 191                                 $u->doUpdate();
 192                                 $u = new SearchUpdate( $this->newid, $this->ot->getPrefixedDBkey(), "" );
 193                                 $u->doUpdate();
 194                         }
 195                 }
 196                 $success = wfLocalUrl( $wgLang->specialPage( "Movepage" ),
 197                   "action=success&oldtitle=" . wfUrlencode( $this->ofx ) .
 198                   "&newtitle=" . wfUrlencode( $this->nfx ) .
 199                   "&talkmoved={$this->talkmoved}" );
 200
 201                 $wgOut->redirect( $success );
 202         }
 203
 204         function showSuccess()
 205         {
 206                 global $wgOut, $wgUser;
 207                 global $newtitle, $oldtitle, $talkmoved;
 208
 209                 $wgOut->setPagetitle( wfMsg( "movepage" ) );
 210                 $wgOut->setSubtitle( wfMsg( "pagemovedsub" ) );
 211
 212                 $fields = array( "oldtitle", "newtitle" );
 213                 wfCleanFormFields( $fields );
 214
 215                 $text = str_replace( "$1", $oldtitle, wfMsg( "pagemovedtext" ) );
 216                 $text = str_replace( "$2", $newtitle, $text );
 217                 $wgOut->addWikiText( $text );
 218
 219                 if ( 1 == $talkmoved ) {
 220                         $wgOut->addHTML( "\n<p>" . wfMsg( "talkpagemoved" ) );
 221                 } elseif( 'invalid' == $talkmoved ) {
 222                         $wgOut->addHTML( "\n<p><strong>" . wfMsg( "talkexists" ) . "</strong>" );
 223                 } else {
 224                         $ot = Title::newFromURL( $oldtitle );
 225                         if ( ! Namespace::isTalk( $ot->getNamespace() ) ) {
 226                                 $wgOut->addHTML( "\n<p>" . wfMsg( "talkpagenotmoved" ) );
 227                         }
 228                 }
 229         }
 230
 231         # Is the the existing target title valid?
 232
 233         function isValidTarget()
 234         {
 235                 $fname = "MovePageForm::isValidTarget";
 236
 237                 $sql = "SELECT cur_is_redirect,cur_text FROM cur " .
 238                   "WHERE cur_id={$this->newid}";
 239                 $res = wfQuery( $sql, DB_READ, $fname );
 240                 $obj = wfFetchObject( $res );
 241
 242                 if ( 0 == $obj->cur_is_redirect ) { return false; }
 243
 244                 if ( preg_match( "/\\[\\[\\s*([^\\]]*)]]/", $obj->cur_text, $m ) ) {
 245                         $rt = Title::newFromText( $m[1] );
 246                         if ( 0 != strcmp( wfStrencode( $rt->getPrefixedDBkey() ),
 247                           $this->oft ) ) {
 248                                 return false;
 249                         }
 250                 }
 251                 $sql = "SELECT old_id FROM old WHERE old_namespace={$this->nns} " .
 252                   "AND old_title='{$this->ndt}'";
 253                 $res = wfQuery( $sql, DB_READ, $fname );
 254                 if ( 0 != wfNumRows( $res ) ) { return false; }
 255
 256                 return true;
 257         }
 258
 259         # Move page to title which is presently a redirect to the source
 260         # page.  Handling link tables here is tricky.
 261
 262         function moveOverExistingRedirect()
 263         {
 264                 global $wgUser;
 265                 $fname = "MovePageForm::moveOverExistingRedirect";
 266                 $mt = wfMsg( "movedto" );
 267
 268         $now = wfTimestampNow();
 269                 $sql = "UPDATE cur SET cur_touched='{$now}'," .
 270                   "cur_namespace={$this->nns},cur_title='{$this->ndt}' " .
 271                   "WHERE cur_id={$this->oldid}";
 272                 wfQuery( $sql, DB_WRITE, $fname );
 273
 274                 $sql = "UPDATE cur SET cur_touched='{$now}'," .
 275                   "cur_namespace={$this->ons},cur_title='{$this->odt}'," .
 276                   "cur_text='#REDIRECT [[{$this->nft}]]\n',cur_comment='" .
 277                   "{$mt} \\\"{$this->nft}\\\"',cur_user='" .  $wgUser->getID() .
 278                   "',cur_minor_edit=0,cur_counter=0,cur_restrictions=''," .
 279                   "cur_user_text='" . wfStrencode( $wgUser->getName() ) . "'," .
 280                   "cur_is_redirect=1,cur_is_new=0 WHERE cur_id={$this->newid}";
 281                 wfQuery( $sql, DB_WRITE, $fname );
 282
 283                 $sql = "UPDATE old SET " .
 284                   "old_namespace={$this->nns},old_title='{$this->ndt}' WHERE " .
 285                   "old_namespace={$this->ons} AND old_title='{$this->odt}'";
 286                 wfQuery( $sql, DB_WRITE, $fname );
 287
 288                 $sql = "UPDATE recentchanges SET ".
 289                         "rc_namespace={$this->nns}, rc_title='{$this->ndt}' WHERE ".
 290                         "rc_cur_id={$this->oldid}";
 291         wfQuery( $sql, DB_WRITE, $fname );
 292
 293                 $sql = "INSERT INTO recentchanges (rc_namespace,rc_title,
 294                         rc_comment,rc_user,rc_user_text,rc_timestamp,
 295                         rc_cur_time,rc_cur_id,rc_new)
 296                         VALUES ({$this->ons},'{$this->odt}'," .
 297                   "'{$mt} \\\"{$this->nft}\\\"','" .
 298                   $wgUser->getID() . "','" . wfStrencode( $wgUser->getName() ) .
 299           "','{$now}','{$now}',{$this->newid},1)";
 300         wfQuery( $sql, DB_WRITE, $fname );
 301
 302                 # The only link from here should be the old redirect
 303
 304                 $sql = "DELETE FROM links WHERE l_from='{$this->nft}'";
 305                 wfQuery( $sql, DB_WRITE, $fname );
 306
 307                 $sql = "UPDATE links SET l_from='{$this->nft}' WHERE l_from='{$this->oft}'";
 308                 wfQuery( $sql, DB_WRITE, $fname );
 309
 310                 # Swap links.  Using MAXINT as a temp; if there's ever an article
 311                 # with id 4294967295, this will fail, but I think that's pretty safe
 312
 313                 $sql = "UPDATE links SET l_to=4294967295 WHERE l_to={$this->oldid}";
 314                 wfQuery( $sql, DB_WRITE, $fname );
 315
 316                 $sql = "UPDATE links SET l_to={$this->oldid} WHERE l_to={$this->newid}";
 317                 wfQuery( $sql, DB_WRITE, $fname );
 318
 319                 $sql = "UPDATE links SET l_to={$this->newid} WHERE l_to=4294967295";
 320                 wfQuery( $sql, DB_WRITE, $fname );
 321
 322                 # Note: the insert below must be after the updates above!
 323
 324                 $sql = "INSERT INTO links (l_from,l_to) VALUES ('{$this->oft}',{$this->oldid})";
 325                 wfQuery( $sql, DB_WRITE, $fname );
 326
 327                 $sql = "UPDATE imagelinks SET il_from='{$this->nft}' WHERE il_from='{$this->oft}'";
 328                 wfQuery( $sql, DB_WRITE, $fname );
 329         }
 330
 331         # Move page to non-existing title.
 332
 333         function moveToNewTitle()
 334         {
 335                 global $wgUser;
 336                 $fname = "MovePageForm::moveToNewTitle";
 337                 $mt = wfMsg( "movedto" );
 338
 339                 $now = wfTimestampNow();
 340                 $won = wfInvertTimestamp( $now );
 341                 $sql = "UPDATE cur SET cur_touched='{$now}'," .
 342                   "cur_namespace={$this->nns},cur_title='{$this->ndt}' " .
 343                   "WHERE cur_id={$this->oldid}";
 344                 wfQuery( $sql, DB_WRITE, $fname );
 345
 346                 $common = "{$this->ons},'{$this->odt}'," .
 347                   "'{$mt} \\\"{$this->nft}\\\"','" .
 348                   $wgUser->getID() . "','" . wfStrencode( $wgUser->getName() ) .
 349           "','{$now}'";
 350                 $sql = "INSERT INTO cur (cur_namespace,cur_title," .
 351                   "cur_comment,cur_user,cur_user_text,cur_timestamp,inverse_timestamp," .
 352                   "cur_touched,cur_text,cur_is_redirect,cur_is_new) " .
 353                   "VALUES ({$common},'{$won}','{$now}','#REDIRECT [[{$this->nft}]]\n',1,1)";
 354                 wfQuery( $sql, DB_WRITE, $fname );
 355                 $this->newid = wfInsertId();
 356
 357                 $sql = "UPDATE old SET " .
 358                   "old_namespace={$this->nns},old_title='{$this->ndt}' WHERE " .
 359                   "old_namespace={$this->ons} AND old_title='{$this->odt}'";
 360                 wfQuery( $sql, DB_WRITE, $fname );
 361
 362         $sql = "UPDATE recentchanges SET ".
 363                         "rc_namespace={$this->nns}, rc_title='{$this->ndt}' WHERE ".
 364                         "rc_namespace={$this->ons} AND rc_title='{$this->odt}'";
 365         wfQuery( $sql, DB_WRITE, $fname );
 366
 367                 $sql = "INSERT INTO recentchanges (rc_namespace,rc_title,
 368                         rc_comment,rc_user,rc_user_text,rc_timestamp,
 369                         rc_cur_time,rc_cur_id,rc_new)
 370                         VALUES ({$common},'{$now}',{$this->newid},1)";
 371         wfQuery( $sql, DB_WRITE, $fname );
 372
 373                 $sql = "UPDATE links SET l_from='{$this->nft}' WHERE l_from='{$this->oft}'";
 374                 wfQuery( $sql, DB_WRITE, $fname );
 375
 376                 $sql = "UPDATE links SET l_to={$this->newid} WHERE l_to={$this->oldid}";
 377                 wfQuery( $sql, DB_WRITE, $fname );
 378
 379                 $sql = "INSERT INTO links (l_from,l_to) VALUES ('{$this->oft}',{$this->oldid})";
 380                 wfQuery( $sql, DB_WRITE, $fname );
 381
 382                 # Non-existent target may have had broken links to it; these must
 383                 # now be removed and made into good links.
 384                 $update = new LinksUpdate( $this->oldid, $this->nft );
 385                 $update->fixBrokenLinks();
 386
 387                 $sql = "UPDATE imagelinks SET il_from='{$this->nft}' WHERE il_from='{$this->oft}'";
 388                 wfQuery( $sql, DB_WRITE, $fname );
 389         }
 390
 391         function updateWatchlists()
 392         {
 393                 $oldnamespace = $this->ons & ~1;
 394                 $newnamespace = $this->nns & ~1;
 395                 $oldtitle = $this->odt;
 396                 $newtitle = $this->ndt;
 397
 398                 if( $oldnamespace == $newnamespace and $oldtitle == $newtitle )
 399                         return;
 400
 401                 $sql = "SELECT wl_user FROM watchlist
 402                         WHERE wl_namespace={$oldnamespace} AND wl_title='{$oldtitle}'";
 403                 $res = wfQuery( $sql, DB_READ, $fname );
 404                 if( $s = wfFetchObject( $res ) ) {
 405                         $sql = "REPLACE INTO watchlist (wl_user,wl_namespace,wl_title)
 406                                 VALUES ({$s->wl_user},{$newnamespace},'{$newtitle}')";
 407                         while( $s = wfFetchObject( $res ) ) {
 408                                 $sql .= ",({$s->wl_user},{$newnamespace},'{$newtitle}')";
 409                         }
 410                         wfQuery( $sql, DB_WRITE, $fname );
 411                 }
 412         }
 413
 414 }
 415 ?>