includes/specials/SpecialBlockip.php

   1 <?php
   2 /**
   3  * Constructor for Special:Blockip page
   4  *
   5  * @file
   6  * @ingroup SpecialPage
   7  */
   8
   9 /**
  10  * Constructor
  11  */
  12 function wfSpecialBlockip( $par ) {
  13         global $wgUser, $wgOut, $wgRequest;
  14         # Can't block when the database is locked
  15         if( wfReadOnly() ) {
  16                 $wgOut->readOnlyPage();
  17                 return;
  18         }
  19         # Permission check
  20         if( !$wgUser->isAllowed( 'block' ) ) {
  21                 $wgOut->permissionRequired( 'block' );
  22                 return;
  23         }
  24
  25         $ipb = new IPBlockForm( $par );
  26
  27         $action = $wgRequest->getVal( 'action' );
  28         if( 'success' == $action ) {
  29                 $ipb->showSuccess();
  30         } else if( $wgRequest->wasPosted() && 'submit' == $action &&
  31                 $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ) ) ) {
  32                 $ipb->doSubmit();
  33         } else {
  34                 $ipb->showForm( '' );
  35         }
  36 }
  37
  38 /**
  39  * Form object for the Special:Blockip page.
  40  *
  41  * @ingroup SpecialPage
  42  */
  43 class IPBlockForm {
  44         var $BlockAddress, $BlockExpiry, $BlockReason;
  45
  46         public function __construct( $par ) {
  47                 global $wgRequest, $wgUser, $wgBlockAllowsUTEdit;
  48
  49                 $this->BlockAddress = $wgRequest->getVal( 'wpBlockAddress', $wgRequest->getVal( 'ip', $par ) );
  50                 $this->BlockAddress = strtr( $this->BlockAddress, '_', ' ' );
  51                 $this->BlockReason = $wgRequest->getText( 'wpBlockReason' );
  52                 $this->BlockReasonList = $wgRequest->getText( 'wpBlockReasonList' );
  53                 $this->BlockExpiry = $wgRequest->getVal( 'wpBlockExpiry', wfMsg('ipbotheroption') );
  54                 $this->BlockOther = $wgRequest->getVal( 'wpBlockOther', '' );
  55
  56                 # Unchecked checkboxes are not included in the form data at all, so having one
  57                 # that is true by default is a bit tricky
  58                 $byDefault = !$wgRequest->wasPosted();
  59                 $this->BlockAnonOnly = $wgRequest->getBool( 'wpAnonOnly', $byDefault );
  60                 $this->BlockCreateAccount = $wgRequest->getBool( 'wpCreateAccount', $byDefault );
  61                 $this->BlockEnableAutoblock = $wgRequest->getBool( 'wpEnableAutoblock', $byDefault );
  62                 $this->BlockEmail = $wgRequest->getBool( 'wpEmailBan', false );
  63                 $this->BlockWatchUser = $wgRequest->getBool( 'wpWatchUser', false );
  64                 # Re-check user's rights to hide names, very serious, defaults to 0
  65                 $this->BlockHideName = ( $wgRequest->getBool( 'wpHideName', 0 ) && $wgUser->isAllowed( 'hideuser' ) ) ? 1 : 0;
  66                 $this->BlockAllowUsertalk = ( $wgRequest->getBool( 'wpAllowUsertalk', $byDefault ) && $wgBlockAllowsUTEdit );
  67                 $this->BlockReblock = $wgRequest->getBool( 'wpChangeBlock', false );
  68         }
  69
  70         public function showForm( $err ) {
  71                 global $wgOut, $wgUser, $wgSysopUserBans;
  72
  73                 $wgOut->setPagetitle( wfMsg( 'blockip' ) );
  74                 $wgOut->addWikiMsg( 'blockiptext' );
  75
  76                 if($wgSysopUserBans) {
  77                         $mIpaddress = Xml::label( wfMsg( 'ipadressorusername' ), 'mw-bi-target' );
  78                 } else {
  79                         $mIpaddress = Xml::label( wfMsg( 'ipaddress' ), 'mw-bi-target' );
  80                 }
  81                 $mIpbexpiry = Xml::label( wfMsg( 'ipbexpiry' ), 'wpBlockExpiry' );
  82                 $mIpbother = Xml::label( wfMsg( 'ipbother' ), 'mw-bi-other' );
  83                 $mIpbreasonother = Xml::label( wfMsg( 'ipbreason' ), 'wpBlockReasonList' );
  84                 $mIpbreason = Xml::label( wfMsg( 'ipbotherreason' ), 'mw-bi-reason' );
  85
  86                 $titleObj = SpecialPage::getTitleFor( 'Blockip' );
  87                 $user = User::newFromName( $this->BlockAddress );
  88
  89                 $alreadyBlocked = false;
  90                 if( $err && $err[0] != 'ipb_already_blocked' ) {
  91                         $key = array_shift($err);
  92                         $msg = wfMsgReal($key, $err);
  93                         $wgOut->setSubtitle( wfMsgHtml( 'formerror' ) );
  94                         $wgOut->addHTML( Xml::tags( 'p', array( 'class' => 'error' ), $msg ) );
  95                 } elseif( $this->BlockAddress ) {
  96                         $userId = 0;
  97                         if( is_object( $user ) )
  98                                 $userId = $user->getId();
  99                         $currentBlock = Block::newFromDB( $this->BlockAddress, $userId );
 100                         if( !is_null($currentBlock) && !$currentBlock->mAuto && # The block exists and isn't an autoblock
 101                                 ( $currentBlock->mRangeStart == $currentBlock->mRangeEnd || # The block isn't a rangeblock
 102                                 # or if it is, the range is what we're about to block
 103                                 ( $currentBlock->mAddress == $this->BlockAddress ) ) ) {
 104                                         $wgOut->addWikiMsg( 'ipb-needreblock', $this->BlockAddress );
 105                                         $alreadyBlocked = true;
 106                                         # Set the block form settings to the existing block
 107                                         $this->BlockAnonOnly = $currentBlock->mAnonOnly;
 108                                         $this->BlockCreateAccount = $currentBlock->mCreateAccount;
 109                                         $this->BlockEnableAutoblock = $currentBlock->mEnableAutoblock;
 110                                         $this->BlockEmail = $currentBlock->mBlockEmail;
 111                                         $this->BlockHideName = $currentBlock->mHideName;
 112                                         $this->BlockAllowUsertalk = $currentBlock->mAllowUsertalk;
 113                                         if( $currentBlock->mExpiry == 'infinity' ) {
 114                                                 $this->BlockOther = 'indefinite';
 115                                         } else {
 116                                                 $this->BlockOther = wfTimestamp( TS_ISO_8601, $currentBlock->mExpiry );
 117                                         }
 118                                         $this->BlockReason = $currentBlock->mReason;
 119                         }
 120                 }
 121
 122                 $scBlockExpiryOptions = wfMsgForContent( 'ipboptions' );
 123
 124                 $showblockoptions = $scBlockExpiryOptions != '-';
 125                 if( !$showblockoptions ) $mIpbother = $mIpbexpiry;
 126
 127                 $blockExpiryFormOptions = Xml::option( wfMsg( 'ipbotheroption' ), 'other' );
 128                 foreach (explode(',', $scBlockExpiryOptions) as $option) {
 129                         if( strpos($option, ":") === false ) $option = "$option:$option";
 130                         list($show, $value) = explode(":", $option);
 131                         $show = htmlspecialchars($show);
 132                         $value = htmlspecialchars($value);
 133                         $blockExpiryFormOptions .= Xml::option( $show, $value, $this->BlockExpiry === $value ? true : false ) . "\n";
 134                 }
 135
 136                 $reasonDropDown = Xml::listDropDown( 'wpBlockReasonList',
 137                         wfMsgForContent( 'ipbreason-dropdown' ),
 138                         wfMsgForContent( 'ipbreasonotherlist' ), $this->BlockReasonList, 'wpBlockDropDown', 4 );
 139
 140                 global $wgStylePath, $wgStyleVersion;
 141                 $wgOut->addHTML(
 142                         Xml::tags( 'script', array( 'type' => 'text/javascript', 'src' => "$wgStylePath/common/block.js?$wgStyleVersion" ), '' ) .
 143                         Xml::openElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalURL( "action=submit" ), 'id' => 'blockip' ) ) .
 144                         Xml::openElement( 'fieldset' ) .
 145                         Xml::element( 'legend', null, wfMsg( 'blockip-legend' ) ) .
 146                         Xml::openElement( 'table', array ( 'border' => '0', 'id' => 'mw-blockip-table' ) ) .
 147                         "<tr>
 148                                 <td class='mw-label'>
 149                                         {$mIpaddress}
 150                                 </td>
 151                                 <td class='mw-input'>" .
 152                                         Xml::input( 'wpBlockAddress', 45, $this->BlockAddress,
 153                                                 array(
 154                                                         'tabindex' => '1',
 155                                                         'id' => 'mw-bi-target',
 156                                                         'onchange' => 'updateBlockOptions()' ) ). "
 157                                 </td>
 158                         </tr>
 159                         <tr>"
 160                 );
 161                 if( $showblockoptions ) {
 162                         $wgOut->addHTML("
 163                                 <td class='mw-label'>
 164                                         {$mIpbexpiry}
 165                                 </td>
 166                                 <td class='mw-input'>" .
 167                                         Xml::tags( 'select',
 168                                                 array(
 169                                                         'id' => 'wpBlockExpiry',
 170                                                         'name' => 'wpBlockExpiry',
 171                                                         'onchange' => 'considerChangingExpiryFocus()',
 172                                                         'tabindex' => '2' ),
 173                                                 $blockExpiryFormOptions ) .
 174                                 "</td>"
 175                         );
 176                 }
 177                 $wgOut->addHTML("
 178                         </tr>
 179                         <tr id='wpBlockOther'>
 180                                 <td class='mw-label'>
 181                                         {$mIpbother}
 182                                 </td>
 183                                 <td class='mw-input'>" .
 184                                         Xml::input( 'wpBlockOther', 45, $this->BlockOther,
 185                                                 array( 'tabindex' => '3', 'id' => 'mw-bi-other' ) ) . "
 186                                 </td>
 187                         </tr>
 188                         <tr>
 189                                 <td class='mw-label'>
 190                                         {$mIpbreasonother}
 191                                 </td>
 192                                 <td class='mw-input'>
 193                                         {$reasonDropDown}
 194                                 </td>
 195                         </tr>
 196                         <tr id=\"wpBlockReason\">
 197                                 <td class='mw-label'>
 198                                         {$mIpbreason}
 199                                 </td>
 200                                 <td class='mw-input'>" .
 201                                         Xml::input( 'wpBlockReason', 45, $this->BlockReason,
 202                                                 array( 'tabindex' => '5', 'id' => 'mw-bi-reason', 'maxlength'=> '200' ) ) . "
 203                                 </td>
 204                         </tr>
 205                         <tr id='wpAnonOnlyRow'>
 206                                 <td>&nbsp;</td>
 207                                 <td class='mw-input'>" .
 208                                 Xml::checkLabel( wfMsg( 'ipbanononly' ),
 209                                                 'wpAnonOnly', 'wpAnonOnly', $this->BlockAnonOnly,
 210                                                 array( 'tabindex' => '6' ) ) . "
 211                                 </td>
 212                         </tr>
 213                         <tr id='wpCreateAccountRow'>
 214                                 <td>&nbsp;</td>
 215                                 <td class='mw-input'>" .
 216                                         Xml::checkLabel( wfMsg( 'ipbcreateaccount' ),
 217                                                 'wpCreateAccount', 'wpCreateAccount', $this->BlockCreateAccount,
 218                                                 array( 'tabindex' => '7' ) ) . "
 219                                 </td>
 220                         </tr>
 221                         <tr id='wpEnableAutoblockRow'>
 222                                 <td>&nbsp;</td>
 223                                 <td class='mw-input'>" .
 224                                         Xml::checkLabel( wfMsg( 'ipbenableautoblock' ),
 225                                                 'wpEnableAutoblock', 'wpEnableAutoblock', $this->BlockEnableAutoblock,
 226                                                 array( 'tabindex' => '8' ) ) . "
 227                                 </td>
 228                         </tr>"
 229                 );
 230
 231                 global $wgSysopEmailBans, $wgBlockAllowsUTEdit;
 232                 if( $wgSysopEmailBans && $wgUser->isAllowed( 'blockemail' ) ) {
 233                         $wgOut->addHTML("
 234                                 <tr id='wpEnableEmailBan'>
 235                                         <td>&nbsp;</td>
 236                                         <td class='mw-input'>" .
 237                                                 Xml::checkLabel( wfMsg( 'ipbemailban' ),
 238                                                         'wpEmailBan', 'wpEmailBan', $this->BlockEmail,
 239                                                         array( 'tabindex' => '9' )) . "
 240                                         </td>
 241                                 </tr>"
 242                         );
 243                 }
 244
 245                 // Allow some users to hide name from block log, blocklist and listusers
 246                 if( $wgUser->isAllowed( 'hideuser' ) ) {
 247                         $wgOut->addHTML("
 248                                 <tr id='wpEnableHideUser'>
 249                                         <td>&nbsp;</td>
 250                                         <td class='mw-input'><strong>" .
 251                                                 Xml::checkLabel( wfMsg( 'ipbhidename' ),
 252                                                         'wpHideName', 'wpHideName', $this->BlockHideName,
 253                                                         array( 'tabindex' => '10' ) ) . "
 254                                         </strong></td>
 255                                 </tr>"
 256                         );
 257                 }
 258
 259                 # Watchlist their user page?
 260                 $wgOut->addHTML("
 261                         <tr id='wpEnableWatchUser'>
 262                                 <td>&nbsp;</td>
 263                                 <td class='mw-input'>" .
 264                                         Xml::checkLabel( wfMsg( 'ipbwatchuser' ),
 265                                                 'wpWatchUser', 'wpWatchUser', $this->BlockWatchUser,
 266                                                 array( 'tabindex' => '11' ) ) . "
 267                                 </td>
 268                         </tr>"
 269                 );
 270                 if( $wgBlockAllowsUTEdit ){
 271                         $wgOut->addHTML("
 272                                 <tr id='wpAllowUsertalkRow'>
 273                                         <td>&nbsp;</td>
 274                                         <td class='mw-input'>" .
 275                                                 Xml::checkLabel( wfMsg( 'ipballowusertalk' ),
 276                                                         'wpAllowUsertalk', 'wpAllowUsertalk', $this->BlockAllowUsertalk,
 277                                                         array( 'tabindex' => '12' ) ) . "
 278                                         </td>
 279                                 </tr>"
 280                         );
 281                 }
 282
 283                 $wgOut->addHTML("
 284                         <tr>
 285                                 <td style='padding-top: 1em'>&nbsp;</td>
 286                                 <td  class='mw-submit' style='padding-top: 1em'>" .
 287                                         Xml::submitButton( wfMsg( $alreadyBlocked ? 'ipb-change-block' : 'ipbsubmit' ),
 288                                                 array( 'name' => 'wpBlock', 'tabindex' => '13', 'accesskey' => 's' ) ) . "
 289                                 </td>
 290                         </tr>" .
 291                         Xml::closeElement( 'table' ) .
 292                         Xml::hidden( 'wpEditToken', $wgUser->editToken() ) .
 293                         ( $alreadyBlocked ? Xml::hidden( 'wpChangeBlock', 1 ) : "" ) .
 294                         Xml::closeElement( 'fieldset' ) .
 295                         Xml::closeElement( 'form' ) .
 296                         Xml::tags( 'script', array( 'type' => 'text/javascript' ), 'updateBlockOptions()' ) . "\n"
 297                 );
 298
 299                 $wgOut->addHTML( $this->getConvenienceLinks() );
 300
 301                 if( is_object( $user ) ) {
 302                         $this->showLogFragment( $wgOut, $user->getUserPage() );
 303                 } elseif( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/', $this->BlockAddress ) ) {
 304                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 305                 } elseif( preg_match( '/^\w{1,4}:\w{1,4}:\w{1,4}:\w{1,4}:\w{1,4}:\w{1,4}:\w{1,4}:\w{1,4}/', $this->BlockAddress ) ) {
 306                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 307                 }
 308         }
 309
 310         /**
 311          * Backend block code.
 312          * $userID and $expiry will be filled accordingly
 313          * @return array(message key, arguments) on failure, empty array on success
 314          */
 315         function doBlock( &$userId = null, &$expiry = null ) {
 316                 global $wgUser, $wgSysopUserBans, $wgSysopRangeBans, $wgBlockAllowsUTEdit;
 317
 318                 $userId = 0;
 319                 # Expand valid IPv6 addresses, usernames are left as is
 320                 $this->BlockAddress = IP::sanitizeIP( $this->BlockAddress );
 321                 # isIPv4() and IPv6() are used for final validation
 322                 $rxIP4 = '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}';
 323                 $rxIP6 = '\w{1,4}:\w{1,4}:\w{1,4}:\w{1,4}:\w{1,4}:\w{1,4}:\w{1,4}:\w{1,4}';
 324                 $rxIP = "($rxIP4|$rxIP6)";
 325
 326                 # Check for invalid specifications
 327                 if( !preg_match( "/^$rxIP$/", $this->BlockAddress ) ) {
 328                         $matches = array();
 329                         if( preg_match( "/^($rxIP4)\\/(\\d{1,2})$/", $this->BlockAddress, $matches ) ) {
 330                                 # IPv4
 331                                 if( $wgSysopRangeBans ) {
 332                                         if( !IP::isIPv4( $this->BlockAddress ) || $matches[2] < 16 || $matches[2] > 32 ) {
 333                                                 return array('ip_range_invalid');
 334                                         }
 335                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 336                                 } else {
 337                                         # Range block illegal
 338                                         return array('range_block_disabled');
 339                                 }
 340                         } else if( preg_match( "/^($rxIP6)\\/(\\d{1,3})$/", $this->BlockAddress, $matches ) ) {
 341                                 # IPv6
 342                                 if( $wgSysopRangeBans ) {
 343                                         if( !IP::isIPv6( $this->BlockAddress ) || $matches[2] < 64 || $matches[2] > 128 ) {
 344                                                 return array('ip_range_invalid');
 345                                         }
 346                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 347                                 } else {
 348                                         # Range block illegal
 349                                         return array('range_block_disabled');
 350                                 }
 351                         } else {
 352                                 # Username block
 353                                 if( $wgSysopUserBans ) {
 354                                         $user = User::newFromName( $this->BlockAddress );
 355                                         if( !is_null( $user ) && $user->getId() ) {
 356                                                 # Use canonical name
 357                                                 $userId = $user->getId();
 358                                                 $this->BlockAddress = $user->getName();
 359                                         } else {
 360                                                 return array('nosuchusershort', htmlspecialchars( $user ? $user->getName() : $this->BlockAddress ) );
 361                                         }
 362                                 } else {
 363                                         return array('badipaddress');
 364                                 }
 365                         }
 366                 }
 367
 368                 if( $wgUser->isBlocked() && ( $wgUser->getId() !== $userId ) ) {
 369                         return array( 'cant-block-while-blocked' );
 370                 }
 371
 372                 $reasonstr = $this->BlockReasonList;
 373                 if( $reasonstr != 'other' && $this->BlockReason != '' ) {
 374                         // Entry from drop down menu + additional comment
 375                         $reasonstr .= wfMsgForContent( 'colon-separator' ) . $this->BlockReason;
 376                 } elseif( $reasonstr == 'other' ) {
 377                         $reasonstr = $this->BlockReason;
 378                 }
 379
 380                 $expirestr = $this->BlockExpiry;
 381                 if( $expirestr == 'other' )
 382                         $expirestr = $this->BlockOther;
 383
 384                 if( ( strlen( $expirestr ) == 0) || ( strlen( $expirestr ) > 50) ) {
 385                         return array('ipb_expiry_invalid');
 386                 }
 387
 388                 if( false === ($expiry = Block::parseExpiryInput( $expirestr )) ) {
 389                         // Bad expiry.
 390                         return array('ipb_expiry_invalid');
 391                 }
 392
 393                 if( $this->BlockHideName ) {
 394                         // Recheck params here...
 395                         if( !$userId || !$wgUser->isAllowed('hideuser') ) {
 396                                 $this->BlockHideName = false; // IP users should not be hidden
 397                         } else if( $expiry !== 'infinity' ) {
 398                                 // Bad expiry.
 399                                 return array('ipb_expiry_temp');
 400                         } else if( User::edits($userId) > 3000 ) {
 401                                 // Typically, the user should have a handful of edits.
 402                                 // Disallow hiding users with many edits for performance.
 403                                 return array('ipb_hide_invalid');
 404                         }
 405                 }
 406
 407                 # Create block object
 408                 # Note: for a user block, ipb_address is only for display purposes
 409                 $block = new Block( $this->BlockAddress, $userId, $wgUser->getId(),
 410                         $reasonstr, wfTimestampNow(), 0, $expiry, $this->BlockAnonOnly,
 411                         $this->BlockCreateAccount, $this->BlockEnableAutoblock, $this->BlockHideName,
 412                         $this->BlockEmail, isset( $this->BlockAllowUsertalk ) ? $this->BlockAllowUsertalk : $wgBlockAllowsUTEdit
 413                 );
 414
 415                 # Should this be privately logged?
 416                 $suppressLog = (bool)$this->BlockHideName;
 417                 if( wfRunHooks('BlockIp', array(&$block, &$wgUser)) ) {
 418                         # Try to insert block. Is there a conflicting block?
 419                         if( !$block->insert() ) {
 420                                 # Show form unless the user is already aware of this...
 421                                 if( !$this->BlockReblock ) {
 422                                         return array( 'ipb_already_blocked' );
 423                                 # Otherwise, try to update the block...
 424                                 } else {
 425                                         # This returns direct blocks before autoblocks/rangeblocks, since we should
 426                                         # be sure the user is blocked by now it should work for our purposes
 427                                         $currentBlock = Block::newFromDB( $this->BlockAddress, $userId );
 428                                         if( $block->equals( $currentBlock ) ) {
 429                                                 return array( 'ipb_already_blocked' );
 430                                         }
 431                                         # If the name was hidden and the blocking user cannot hide
 432                                         # names, then don't allow any block changes...
 433                                         if( $currentBlock->mHideName && !$wgUser->isAllowed('hideuser') ) {
 434                                                 return array( 'hookaborted' );
 435                                         }
 436                                         $currentBlock->delete();
 437                                         $block->insert();
 438                                         # If hiding/unhiding a name, this should go in the private logs
 439                                         $suppressLog = $suppressLog || (bool)$currentBlock->mHideName;
 440                                         $log_action = 'reblock';
 441                                         # Unset _deleted fields if requested
 442                                         if( $currentBlock->mHideName && !$this->BlockHideName ) {
 443                                                 self::unsuppressUserName( $this->BlockAddress, $userId );
 444                                         }
 445                                 }
 446                         } else {
 447                                 $log_action = 'block';
 448                         }
 449                         wfRunHooks('BlockIpComplete', array($block, $wgUser));
 450
 451                         # Set *_deleted fields if requested
 452                         if( $this->BlockHideName ) {
 453                                 self::suppressUserName( $this->BlockAddress, $userId );
 454                         }
 455
 456                         if( $this->BlockWatchUser &&
 457                                 # Only show watch link when this is no range block
 458                                 $block->mRangeStart == $block->mRangeEnd) {
 459                                 $wgUser->addWatch ( Title::makeTitle( NS_USER, $this->BlockAddress ) );
 460                         }
 461
 462                         # Block constructor sanitizes certain block options on insert
 463                         $this->BlockEmail = $block->mBlockEmail;
 464                         $this->BlockEnableAutoblock = $block->mEnableAutoblock;
 465
 466                         # Prepare log parameters
 467                         $logParams = array();
 468                         $logParams[] = $expirestr;
 469                         $logParams[] = $this->blockLogFlags();
 470
 471                         # Make log entry, if the name is hidden, put it in the oversight log
 472                         $log_type = $suppressLog ? 'suppress' : 'block';
 473                         $log = new LogPage( $log_type );
 474                         $log->addEntry( $log_action, Title::makeTitle( NS_USER, $this->BlockAddress ),
 475                                 $reasonstr, $logParams );
 476
 477                         # Report to the user
 478                         return array();
 479                 } else {
 480                         return array('hookaborted');
 481                 }
 482         }
 483
 484         public static function suppressUserName( $name, $userId ) {
 485                 $op = '|'; // bitwise OR
 486                 return self::setUsernameBitfields( $name, $userId, $op );
 487         }
 488
 489         public static function unsuppressUserName( $name, $userId ) {
 490                 $op = '&'; // bitwise AND
 491                 return self::setUsernameBitfields( $name, $userId, $op );
 492         }
 493
 494         private static function setUsernameBitfields( $name, $userId, $op ) {
 495                 if( $op !== '|' && $op !== '&' ) return false; // sanity check
 496                 $dbw = wfGetDB( DB_MASTER );
 497                 $delUser = Revision::DELETED_USER | Revision::DELETED_RESTRICTED;
 498                 $delAction = LogPage::DELETED_ACTION | Revision::DELETED_RESTRICTED;
 499                 # Normalize user name
 500                 $userTitle = Title::makeTitleSafe( NS_USER, $name );
 501                 $userDbKey = $userTitle->getDBKey();
 502                 # To suppress, we OR the current bitfields with Revision::DELETED_USER
 503                 # to put a 1 in the username *_deleted bit. To unsuppress we AND the
 504                 # current bitfields with the inverse of Revision::DELETED_USER. The
 505                 # username bit is made to 0 (x & 0 = 0), while others are unchanged (x & 1 = x).
 506                 # The same goes for the sysop-restricted *_deleted bit.
 507                 if( $op == '&' ) {
 508                         $delUser = "~{$delUser}";
 509                         $delAction = "~{$delAction}";
 510                 }
 511                 # Hide name from live edits
 512                 $dbw->update( 'revision', array("rev_deleted = rev_deleted $op $delUser"),
 513                         array('rev_user' => $userId), __METHOD__ );
 514                 # Hide name from deleted edits
 515                 $dbw->update( 'archive', array("ar_deleted = ar_deleted $op $delUser"),
 516                         array('ar_user_text' => $name), __METHOD__ );
 517                 # Hide name from logs
 518                 $dbw->update( 'logging', array("log_deleted = log_deleted $op $delUser"),
 519                         array('log_user' => $userId, "log_type != 'suppress'"), __METHOD__ );
 520                 $dbw->update( 'logging', array("log_deleted = log_deleted $op $delAction"),
 521                         array('log_namespace' => NS_USER, 'log_title' => $userDbKey,
 522                                 "log_type != 'suppress'"), __METHOD__ );
 523                 # Hide name from RC
 524                 $dbw->update( 'recentchanges', array("rc_deleted = rc_deleted $op $delUser"),
 525                         array('rc_user_text' => $name), __METHOD__ );
 526                 $dbw->update( 'recentchanges', array("rc_deleted = rc_deleted $op $delAction"),
 527                         array('rc_namespace' => NS_USER, 'rc_title' => $userDbKey, 'rc_logid > 0'), __METHOD__ );
 528                 # Hide name from live images
 529                 $dbw->update( 'oldimage', array("oi_deleted = oi_deleted $op $delUser"),
 530                         array('oi_user_text' => $name), __METHOD__ );
 531                 # Hide name from deleted images
 532                 # WMF - schema change pending
 533                 # $dbw->update( 'filearchive', array("fa_deleted = fa_deleted $op $delUser"),
 534                 #       array('fa_user_text' => $name), __METHOD__ );
 535                 # Done!
 536                 return true;
 537         }
 538
 539         /**
 540          * UI entry point for blocking
 541          * Wraps around doBlock()
 542          */
 543         public function doSubmit() {
 544                 global $wgOut;
 545                 $retval = $this->doBlock();
 546                 if( empty($retval) ) {
 547                         $titleObj = SpecialPage::getTitleFor( 'Blockip' );
 548                         $wgOut->redirect( $titleObj->getFullURL( 'action=success&ip=' .
 549                                 urlencode( $this->BlockAddress ) ) );
 550                         return;
 551                 }
 552                 $this->showForm( $retval );
 553         }
 554
 555         public function showSuccess() {
 556                 global $wgOut;
 557
 558                 $wgOut->setPagetitle( wfMsg( 'blockip' ) );
 559                 $wgOut->setSubtitle( wfMsg( 'blockipsuccesssub' ) );
 560                 $text = wfMsgExt( 'blockipsuccesstext', array( 'parse' ), $this->BlockAddress );
 561                 $wgOut->addHTML( $text );
 562         }
 563
 564         private function showLogFragment( $out, $title ) {
 565                 global $wgUser;
 566                 $out->addHTML( Xml::element( 'h2', NULL, LogPage::logName( 'block' ) ) );
 567                 $count = LogEventsList::showLogExtract( $out, 'block', $title->getPrefixedText(), '', 10 );
 568                 if( $count > 10 ) {
 569                         $out->addHTML( $wgUser->getSkin()->link(
 570                                 SpecialPage::getTitleFor( 'Log' ),
 571                                 wfMsgHtml( 'blocklog-fulllog' ),
 572                                 array(),
 573                                 array(
 574                                         'type' => 'block',
 575                                         'page' => $title->getPrefixedText() ) ) );
 576                 }
 577                 // Add suppression block entries if allowed
 578                 if( $wgUser->isAllowed('hideuser') ) {
 579                         $out->addHTML( Xml::element( 'h2', NULL, LogPage::logName( 'suppress' ) ) );
 580                         LogEventsList::showLogExtract( $out, 'suppress', $title->getPrefixedText(), '',
 581                                 10, array('log_action' => array('block','reblock','unblock')) );
 582                 }
 583         }
 584
 585         /**
 586          * Return a comma-delimited list of "flags" to be passed to the log
 587          * reader for this block, to provide more information in the logs
 588          *
 589          * @return array
 590          */
 591         private function blockLogFlags() {
 592                 global $wgBlockAllowsUTEdit;
 593                 $flags = array();
 594                 if( $this->BlockAnonOnly && IP::isIPAddress( $this->BlockAddress ) )
 595                         // when blocking a user the option 'anononly' is not available/has no effect -> do not write this into log
 596                         $flags[] = 'anononly';
 597                 if( $this->BlockCreateAccount )
 598                         $flags[] = 'nocreate';
 599                 if( !$this->BlockEnableAutoblock && !IP::isIPAddress( $this->BlockAddress ) )
 600                         // Same as anononly, this is not displayed when blocking an IP address
 601                         $flags[] = 'noautoblock';
 602                 if( $this->BlockEmail )
 603                         $flags[] = 'noemail';
 604                 if( !$this->BlockAllowUsertalk && $wgBlockAllowsUTEdit )
 605                         $flags[] = 'nousertalk';
 606                 if( $this->BlockHideName )
 607                         $flags[] = 'hiddenname';
 608                 return implode( ',', $flags );
 609         }
 610
 611         /**
 612          * Builds unblock and block list links
 613          *
 614          * @return string
 615          */
 616         private function getConvenienceLinks() {
 617                 global $wgUser, $wgLang;
 618                 $skin = $wgUser->getSkin();
 619                 if( $this->BlockAddress )
 620                         $links[] = $this->getContribsLink( $skin );
 621                 $links[] = $this->getUnblockLink( $skin );
 622                 $links[] = $this->getBlockListLink( $skin );
 623                 $links[] = $skin->makeLink ( 'MediaWiki:Ipbreason-dropdown', wfMsgHtml( 'ipb-edit-dropdown' ) );
 624                 return '<p class="mw-ipb-conveniencelinks">' . $wgLang->pipeList( $links ) . '</p>';
 625         }
 626
 627         /**
 628          * Build a convenient link to a user or IP's contribs
 629          * form
 630          *
 631          * @param $skin Skin to use
 632          * @return string
 633          */
 634         private function getContribsLink( $skin ) {
 635                 $contribsPage = SpecialPage::getTitleFor( 'Contributions', $this->BlockAddress );
 636                 return $skin->link( $contribsPage, wfMsgHtml( 'ipb-blocklist-contribs', $this->BlockAddress ) );
 637         }
 638
 639         /**
 640          * Build a convenient link to unblock the given username or IP
 641          * address, if available; otherwise link to a blank unblock
 642          * form
 643          *
 644          * @param $skin Skin to use
 645          * @return string
 646          */
 647         private function getUnblockLink( $skin ) {
 648                 $list = SpecialPage::getTitleFor( 'Ipblocklist' );
 649                 if( $this->BlockAddress ) {
 650                         $addr = htmlspecialchars( strtr( $this->BlockAddress, '_', ' ' ) );
 651                         return $skin->makeKnownLinkObj( $list, wfMsgHtml( 'ipb-unblock-addr', $addr ),
 652                                 'action=unblock&ip=' . urlencode( $this->BlockAddress ) );
 653                 } else {
 654                         return $skin->makeKnownLinkObj( $list, wfMsgHtml( 'ipb-unblock' ),      'action=unblock' );
 655                 }
 656         }
 657
 658         /**
 659          * Build a convenience link to the block list
 660          *
 661          * @param $skin Skin to use
 662          * @return string
 663          */
 664         private function getBlockListLink( $skin ) {
 665                 $list = SpecialPage::getTitleFor( 'Ipblocklist' );
 666                 if( $this->BlockAddress ) {
 667                         $addr = htmlspecialchars( strtr( $this->BlockAddress, '_', ' ' ) );
 668                         return $skin->makeKnownLinkObj( $list, wfMsgHtml( 'ipb-blocklist-addr', $addr ),
 669                                 'ip=' . urlencode( $this->BlockAddress ) );
 670                 } else {
 671                         return $skin->makeKnownLinkObj( $list, wfMsgHtml( 'ipb-blocklist' ) );
 672                 }
 673         }
 674
 675         /**
 676         * Block a list of selected users
 677         * @param array $users
 678         * @param string $reason
 679         * @param string $tag replaces user pages
 680         * @param string $talkTag replaces user talk pages
 681         * @returns array, list of html-safe usernames
 682         */
 683         public static function doMassUserBlock( $users, $reason = '', $tag = '', $talkTag = '' ) {
 684                 global $wgUser;
 685                 $counter = $blockSize = 0;
 686                 $safeUsers = array();
 687                 $log = new LogPage( 'block' );
 688                 foreach( $users as $name ) {
 689                         # Enforce limits
 690                         $counter++;
 691                         $blockSize++;
 692                         # Lets not go *too* fast
 693                         if( $blockSize >= 20 ) {
 694                                 $blockSize = 0;
 695                                 wfWaitForSlaves( 5 );
 696                         }
 697                         $u = User::newFromName( $name, false );
 698                         // If user doesn't exist, it ought to be an IP then
 699                         if( is_null($u) || (!$u->getId() && !IP::isIPAddress( $u->getName() )) ) {
 700                                 continue;
 701                         }
 702                         $userTitle = $u->getUserPage();
 703                         $userTalkTitle = $u->getTalkPage();
 704                         $userpage = new Article( $userTitle );
 705                         $usertalk = new Article( $userTalkTitle );
 706                         $safeUsers[] = '[[' . $userTitle->getPrefixedText() . '|' . $userTitle->getText() . ']]';
 707                         $expirestr = $u->getId() ? 'indefinite' : '1 week';
 708                         $expiry = Block::parseExpiryInput( $expirestr );
 709                         $anonOnly = IP::isIPAddress( $u->getName() ) ? 1 : 0;
 710                         // Create the block
 711                         $block = new Block( $u->getName(), // victim
 712                                 $u->getId(), // uid
 713                                 $wgUser->getId(), // blocker
 714                                 $reason, // comment
 715                                 wfTimestampNow(), // block time
 716                                 0, // auto ?
 717                                 $expiry, // duration
 718                                 $anonOnly, // anononly?
 719                                 1, // block account creation?
 720                                 1, // autoblocking?
 721                                 0, // suppress name?
 722                                 0 // block from sending email?
 723                         );
 724                         $oldblock = Block::newFromDB( $u->getName(), $u->getId() );
 725                         if( !$oldblock ) {
 726                                 $block->insert();
 727                                 # Prepare log parameters
 728                                 $logParams = array();
 729                                 $logParams[] = $expirestr;
 730                                 if( $anonOnly ) {
 731                                         $logParams[] = 'anononly';
 732                                 }
 733                                 $logParams[] = 'nocreate';
 734                                 # Add log entry
 735                                 $log->addEntry( 'block', $userTitle, $reason, $logParams );
 736                         }
 737                         # Tag userpage! (check length to avoid mistakes)
 738                         if( strlen($tag) > 2 ) {
 739                                 $userpage->doEdit( $tag, $reason, EDIT_MINOR );
 740                         }
 741                         if( strlen($talkTag) > 2 ) {
 742                                 $usertalk->doEdit( $talkTag, $reason, EDIT_MINOR );
 743                         }
 744                 }
 745                 return $safeUsers;
 746         }
 747 }