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         // The maximum number of edits a user can have and still be hidden
  46         const HIDEUSER_CONTRIBLIMIT = 1000;
  47
  48         public function __construct( $par ) {
  49                 global $wgRequest, $wgUser, $wgBlockAllowsUTEdit;
  50
  51                 $this->BlockAddress = $wgRequest->getVal( 'wpBlockAddress', $wgRequest->getVal( 'ip', $par ) );
  52                 $this->BlockAddress = strtr( $this->BlockAddress, '_', ' ' );
  53                 $this->BlockReason = $wgRequest->getText( 'wpBlockReason' );
  54                 $this->BlockReasonList = $wgRequest->getText( 'wpBlockReasonList' );
  55                 $this->BlockExpiry = $wgRequest->getVal( 'wpBlockExpiry', wfMsg('ipbotheroption') );
  56                 $this->BlockOther = $wgRequest->getVal( 'wpBlockOther', '' );
  57
  58                 # Unchecked checkboxes are not included in the form data at all, so having one
  59                 # that is true by default is a bit tricky
  60                 $byDefault = !$wgRequest->wasPosted();
  61                 $this->BlockAnonOnly = $wgRequest->getBool( 'wpAnonOnly', $byDefault );
  62                 $this->BlockCreateAccount = $wgRequest->getBool( 'wpCreateAccount', $byDefault );
  63                 $this->BlockEnableAutoblock = $wgRequest->getBool( 'wpEnableAutoblock', $byDefault );
  64                 $this->BlockEmail = false;
  65                 if( self::canBlockEmail( $wgUser ) ) {
  66                         $this->BlockEmail = $wgRequest->getBool( 'wpEmailBan', false );
  67                 }
  68                 $this->BlockWatchUser = $wgRequest->getBool( 'wpWatchUser', false );
  69                 # Re-check user's rights to hide names, very serious, defaults to 0
  70                 $this->BlockHideName = ( $wgRequest->getBool( 'wpHideName', 0 ) && $wgUser->isAllowed( 'hideuser' ) ) ? 1 : 0;
  71                 $this->BlockAllowUsertalk = ( $wgRequest->getBool( 'wpAllowUsertalk', $byDefault ) && $wgBlockAllowsUTEdit );
  72                 $this->BlockReblock = $wgRequest->getBool( 'wpChangeBlock', false );
  73         }
  74
  75         public function showForm( $err ) {
  76                 global $wgOut, $wgUser, $wgSysopUserBans;
  77
  78                 $wgOut->setPagetitle( wfMsg( 'blockip' ) );
  79                 $wgOut->addWikiMsg( 'blockiptext' );
  80
  81                 if($wgSysopUserBans) {
  82                         $mIpaddress = Xml::label( wfMsg( 'ipadressorusername' ), 'mw-bi-target' );
  83                 } else {
  84                         $mIpaddress = Xml::label( wfMsg( 'ipaddress' ), 'mw-bi-target' );
  85                 }
  86                 $mIpbexpiry = Xml::label( wfMsg( 'ipbexpiry' ), 'wpBlockExpiry' );
  87                 $mIpbother = Xml::label( wfMsg( 'ipbother' ), 'mw-bi-other' );
  88                 $mIpbreasonother = Xml::label( wfMsg( 'ipbreason' ), 'wpBlockReasonList' );
  89                 $mIpbreason = Xml::label( wfMsg( 'ipbotherreason' ), 'mw-bi-reason' );
  90
  91                 $titleObj = SpecialPage::getTitleFor( 'Blockip' );
  92                 $user = User::newFromName( $this->BlockAddress );
  93
  94                 $alreadyBlocked = false;
  95                 if( $err && $err[0] != 'ipb_already_blocked' ) {
  96                         $key = array_shift($err);
  97                         $msg = wfMsgReal($key, $err);
  98                         $wgOut->setSubtitle( wfMsgHtml( 'formerror' ) );
  99                         $wgOut->addHTML( Xml::tags( 'p', array( 'class' => 'error' ), $msg ) );
 100                 } elseif( $this->BlockAddress ) {
 101                         $userId = 0;
 102                         if( is_object( $user ) )
 103                                 $userId = $user->getId();
 104                         $currentBlock = Block::newFromDB( $this->BlockAddress, $userId );
 105                         if( !is_null($currentBlock) && !$currentBlock->mAuto && # The block exists and isn't an autoblock
 106                                 ( $currentBlock->mRangeStart == $currentBlock->mRangeEnd || # The block isn't a rangeblock
 107                                 # or if it is, the range is what we're about to block
 108                                 ( $currentBlock->mAddress == $this->BlockAddress ) ) ) {
 109                                         $wgOut->addWikiMsg( 'ipb-needreblock', $this->BlockAddress );
 110                                         $alreadyBlocked = true;
 111                                         # Set the block form settings to the existing block
 112                                         $this->BlockAnonOnly = $currentBlock->mAnonOnly;
 113                                         $this->BlockCreateAccount = $currentBlock->mCreateAccount;
 114                                         $this->BlockEnableAutoblock = $currentBlock->mEnableAutoblock;
 115                                         $this->BlockEmail = $currentBlock->mBlockEmail;
 116                                         $this->BlockHideName = $currentBlock->mHideName;
 117                                         $this->BlockAllowUsertalk = $currentBlock->mAllowUsertalk;
 118                                         if( $currentBlock->mExpiry == 'infinity' ) {
 119                                                 $this->BlockOther = 'indefinite';
 120                                         } else {
 121                                                 $this->BlockOther = wfTimestamp( TS_ISO_8601, $currentBlock->mExpiry );
 122                                         }
 123                                         $this->BlockReason = $currentBlock->mReason;
 124                         }
 125                 }
 126
 127                 $scBlockExpiryOptions = wfMsgForContent( 'ipboptions' );
 128
 129                 $showblockoptions = $scBlockExpiryOptions != '-';
 130                 if( !$showblockoptions ) $mIpbother = $mIpbexpiry;
 131
 132                 $blockExpiryFormOptions = Xml::option( wfMsg( 'ipbotheroption' ), 'other' );
 133                 foreach (explode(',', $scBlockExpiryOptions) as $option) {
 134                         if( strpos($option, ":") === false ) $option = "$option:$option";
 135                         list($show, $value) = explode(":", $option);
 136                         $show = htmlspecialchars($show);
 137                         $value = htmlspecialchars($value);
 138                         $blockExpiryFormOptions .= Xml::option( $show, $value, $this->BlockExpiry === $value ? true : false ) . "\n";
 139                 }
 140
 141                 $reasonDropDown = Xml::listDropDown( 'wpBlockReasonList',
 142                         wfMsgForContent( 'ipbreason-dropdown' ),
 143                         wfMsgForContent( 'ipbreasonotherlist' ), $this->BlockReasonList, 'wpBlockDropDown', 4 );
 144
 145                 global $wgStylePath, $wgStyleVersion;
 146                 $wgOut->addHTML(
 147                         Xml::tags( 'script', array( 'type' => 'text/javascript', 'src' => "$wgStylePath/common/block.js?$wgStyleVersion" ), '' ) .
 148                         Xml::openElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalURL( "action=submit" ), 'id' => 'blockip' ) ) .
 149                         Xml::openElement( 'fieldset' ) .
 150                         Xml::element( 'legend', null, wfMsg( 'blockip-legend' ) ) .
 151                         Xml::openElement( 'table', array ( 'border' => '0', 'id' => 'mw-blockip-table' ) ) .
 152                         "<tr>
 153                                 <td class='mw-label'>
 154                                         {$mIpaddress}
 155                                 </td>
 156                                 <td class='mw-input'>" .
 157                                         Html::input( 'wpBlockAddress', $this->BlockAddress, 'text', array(
 158                                                 'tabindex' => '1',
 159                                                 'id' => 'mw-bi-target',
 160                                                 'onchange' => 'updateBlockOptions()',
 161                                                 'size' => '45',
 162                                                 'required' => ''
 163                                         ) + ( $this->BlockAddress ? array() : array( 'autofocus' ) ) ). "
 164                                 </td>
 165                         </tr>
 166                         <tr>"
 167                 );
 168                 if( $showblockoptions ) {
 169                         $wgOut->addHTML("
 170                                 <td class='mw-label'>
 171                                         {$mIpbexpiry}
 172                                 </td>
 173                                 <td class='mw-input'>" .
 174                                         Xml::tags( 'select',
 175                                                 array(
 176                                                         'id' => 'wpBlockExpiry',
 177                                                         'name' => 'wpBlockExpiry',
 178                                                         'onchange' => 'considerChangingExpiryFocus()',
 179                                                         'tabindex' => '2' ),
 180                                                 $blockExpiryFormOptions ) .
 181                                 "</td>"
 182                         );
 183                 }
 184                 $wgOut->addHTML("
 185                         </tr>
 186                         <tr id='wpBlockOther'>
 187                                 <td class='mw-label'>
 188                                         {$mIpbother}
 189                                 </td>
 190                                 <td class='mw-input'>" .
 191                                         Xml::input( 'wpBlockOther', 45, $this->BlockOther,
 192                                                 array( 'tabindex' => '3', 'id' => 'mw-bi-other' ) ) . "
 193                                 </td>
 194                         </tr>
 195                         <tr>
 196                                 <td class='mw-label'>
 197                                         {$mIpbreasonother}
 198                                 </td>
 199                                 <td class='mw-input'>
 200                                         {$reasonDropDown}
 201                                 </td>
 202                         </tr>
 203                         <tr id=\"wpBlockReason\">
 204                                 <td class='mw-label'>
 205                                         {$mIpbreason}
 206                                 </td>
 207                                 <td class='mw-input'>" .
 208                                 Html::input( 'wpBlockReason', $this->BlockReason, 'text', array(
 209                                         'tabindex' => '5',
 210                                         'id' => 'mw-bi-reason',
 211                                         'maxlength' => '200',
 212                                         'size' => '45'
 213                                 ) + ( $this->BlockAddress ? array( 'autofocus' ) : array() ) ) . "
 214                                 </td>
 215                         </tr>
 216                         <tr id='wpAnonOnlyRow'>
 217                                 <td>&nbsp;</td>
 218                                 <td class='mw-input'>" .
 219                                 Xml::checkLabel( wfMsg( 'ipbanononly' ),
 220                                                 'wpAnonOnly', 'wpAnonOnly', $this->BlockAnonOnly,
 221                                                 array( 'tabindex' => '6' ) ) . "
 222                                 </td>
 223                         </tr>
 224                         <tr id='wpCreateAccountRow'>
 225                                 <td>&nbsp;</td>
 226                                 <td class='mw-input'>" .
 227                                         Xml::checkLabel( wfMsg( 'ipbcreateaccount' ),
 228                                                 'wpCreateAccount', 'wpCreateAccount', $this->BlockCreateAccount,
 229                                                 array( 'tabindex' => '7' ) ) . "
 230                                 </td>
 231                         </tr>
 232                         <tr id='wpEnableAutoblockRow'>
 233                                 <td>&nbsp;</td>
 234                                 <td class='mw-input'>" .
 235                                         Xml::checkLabel( wfMsg( 'ipbenableautoblock' ),
 236                                                 'wpEnableAutoblock', 'wpEnableAutoblock', $this->BlockEnableAutoblock,
 237                                                 array( 'tabindex' => '8' ) ) . "
 238                                 </td>
 239                         </tr>"
 240                 );
 241
 242                 if( self::canBlockEmail( $wgUser ) ) {
 243                         $wgOut->addHTML("
 244                                 <tr id='wpEnableEmailBan'>
 245                                         <td>&nbsp;</td>
 246                                         <td class='mw-input'>" .
 247                                                 Xml::checkLabel( wfMsg( 'ipbemailban' ),
 248                                                         'wpEmailBan', 'wpEmailBan', $this->BlockEmail,
 249                                                         array( 'tabindex' => '9' )) . "
 250                                         </td>
 251                                 </tr>"
 252                         );
 253                 }
 254
 255                 // Allow some users to hide name from block log, blocklist and listusers
 256                 if( $wgUser->isAllowed( 'hideuser' ) ) {
 257                         $wgOut->addHTML("
 258                                 <tr id='wpEnableHideUser'>
 259                                         <td>&nbsp;</td>
 260                                         <td class='mw-input'><strong>" .
 261                                                 Xml::checkLabel( wfMsg( 'ipbhidename' ),
 262                                                         'wpHideName', 'wpHideName', $this->BlockHideName,
 263                                                         array( 'tabindex' => '10' ) ) . "
 264                                         </strong></td>
 265                                 </tr>"
 266                         );
 267                 }
 268
 269                 # Watchlist their user page?
 270                 $wgOut->addHTML("
 271                         <tr id='wpEnableWatchUser'>
 272                                 <td>&nbsp;</td>
 273                                 <td class='mw-input'>" .
 274                                         Xml::checkLabel( wfMsg( 'ipbwatchuser' ),
 275                                                 'wpWatchUser', 'wpWatchUser', $this->BlockWatchUser,
 276                                                 array( 'tabindex' => '11' ) ) . "
 277                                 </td>
 278                         </tr>"
 279                 );
 280
 281                 # Can we explicitly disallow the use of user_talk?
 282                 global $wgBlockAllowsUTEdit;
 283                 if( $wgBlockAllowsUTEdit ){
 284                         $wgOut->addHTML("
 285                                 <tr id='wpAllowUsertalkRow'>
 286                                         <td>&nbsp;</td>
 287                                         <td class='mw-input'>" .
 288                                                 Xml::checkLabel( wfMsg( 'ipballowusertalk' ),
 289                                                         'wpAllowUsertalk', 'wpAllowUsertalk', $this->BlockAllowUsertalk,
 290                                                         array( 'tabindex' => '12' ) ) . "
 291                                         </td>
 292                                 </tr>"
 293                         );
 294                 }
 295
 296                 $wgOut->addHTML("
 297                         <tr>
 298                                 <td style='padding-top: 1em'>&nbsp;</td>
 299                                 <td  class='mw-submit' style='padding-top: 1em'>" .
 300                                         Xml::submitButton( wfMsg( $alreadyBlocked ? 'ipb-change-block' : 'ipbsubmit' ),
 301                                                 array( 'name' => 'wpBlock', 'tabindex' => '13', 'accesskey' => 's' ) ) . "
 302                                 </td>
 303                         </tr>" .
 304                         Xml::closeElement( 'table' ) .
 305                         Xml::hidden( 'wpEditToken', $wgUser->editToken() ) .
 306                         ( $alreadyBlocked ? Xml::hidden( 'wpChangeBlock', 1 ) : "" ) .
 307                         Xml::closeElement( 'fieldset' ) .
 308                         Xml::closeElement( 'form' ) .
 309                         Xml::tags( 'script', array( 'type' => 'text/javascript' ), 'updateBlockOptions()' ) . "\n"
 310                 );
 311
 312                 $wgOut->addHTML( $this->getConvenienceLinks() );
 313
 314                 if( is_object( $user ) ) {
 315                         $this->showLogFragment( $wgOut, $user->getUserPage() );
 316                 } elseif( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/', $this->BlockAddress ) ) {
 317                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 318                 } 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 ) ) {
 319                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 320                 }
 321         }
 322
 323         /**
 324          * Can we do an email block?
 325          * @param User $user The sysop wanting to make a block
 326          * @return boolean
 327          */
 328         public static function canBlockEmail( $user ) {
 329                 global $wgEnableUserEmail, $wgSysopEmailBans;
 330                 return ($wgEnableUserEmail && $wgSysopEmailBans && $user->isAllowed( 'blockemail' ));
 331         }
 332
 333         /**
 334          * Backend block code.
 335          * $userID and $expiry will be filled accordingly
 336          * @return array(message key, arguments) on failure, empty array on success
 337          */
 338         function doBlock( &$userId = null, &$expiry = null ) {
 339                 global $wgUser, $wgSysopUserBans, $wgSysopRangeBans, $wgBlockAllowsUTEdit;
 340
 341                 $userId = 0;
 342                 # Expand valid IPv6 addresses, usernames are left as is
 343                 $this->BlockAddress = IP::sanitizeIP( $this->BlockAddress );
 344                 # isIPv4() and IPv6() are used for final validation
 345                 $rxIP4 = '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}';
 346                 $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}';
 347                 $rxIP = "($rxIP4|$rxIP6)";
 348
 349                 # Check for invalid specifications
 350                 if( !preg_match( "/^$rxIP$/", $this->BlockAddress ) ) {
 351                         $matches = array();
 352                         if( preg_match( "/^($rxIP4)\\/(\\d{1,2})$/", $this->BlockAddress, $matches ) ) {
 353                                 # IPv4
 354                                 if( $wgSysopRangeBans ) {
 355                                         if( !IP::isIPv4( $this->BlockAddress ) || $matches[2] < 16 || $matches[2] > 32 ) {
 356                                                 return array('ip_range_invalid');
 357                                         }
 358                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 359                                 } else {
 360                                         # Range block illegal
 361                                         return array('range_block_disabled');
 362                                 }
 363                         } else if( preg_match( "/^($rxIP6)\\/(\\d{1,3})$/", $this->BlockAddress, $matches ) ) {
 364                                 # IPv6
 365                                 if( $wgSysopRangeBans ) {
 366                                         if( !IP::isIPv6( $this->BlockAddress ) || $matches[2] < 64 || $matches[2] > 128 ) {
 367                                                 return array('ip_range_invalid');
 368                                         }
 369                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 370                                 } else {
 371                                         # Range block illegal
 372                                         return array('range_block_disabled');
 373                                 }
 374                         } else {
 375                                 # Username block
 376                                 if( $wgSysopUserBans ) {
 377                                         $user = User::newFromName( $this->BlockAddress );
 378                                         if( !is_null( $user ) && $user->getId() ) {
 379                                                 # Use canonical name
 380                                                 $userId = $user->getId();
 381                                                 $this->BlockAddress = $user->getName();
 382                                         } else {
 383                                                 return array('nosuchusershort', htmlspecialchars( $user ? $user->getName() : $this->BlockAddress ) );
 384                                         }
 385                                 } else {
 386                                         return array('badipaddress');
 387                                 }
 388                         }
 389                 }
 390
 391                 if( $wgUser->isBlocked() && ( $wgUser->getId() !== $userId ) ) {
 392                         return array( 'cant-block-while-blocked' );
 393                 }
 394
 395                 $reasonstr = $this->BlockReasonList;
 396                 if( $reasonstr != 'other' && $this->BlockReason != '' ) {
 397                         // Entry from drop down menu + additional comment
 398                         $reasonstr .= wfMsgForContent( 'colon-separator' ) . $this->BlockReason;
 399                 } elseif( $reasonstr == 'other' ) {
 400                         $reasonstr = $this->BlockReason;
 401                 }
 402
 403                 $expirestr = $this->BlockExpiry;
 404                 if( $expirestr == 'other' )
 405                         $expirestr = $this->BlockOther;
 406
 407                 if( ( strlen( $expirestr ) == 0) || ( strlen( $expirestr ) > 50) ) {
 408                         return array('ipb_expiry_invalid');
 409                 }
 410
 411                 if( false === ($expiry = Block::parseExpiryInput( $expirestr )) ) {
 412                         // Bad expiry.
 413                         return array('ipb_expiry_invalid');
 414                 }
 415
 416                 if( $this->BlockHideName ) {
 417                         // Recheck params here...
 418                         if( !$userId || !$wgUser->isAllowed('hideuser') ) {
 419                                 $this->BlockHideName = false; // IP users should not be hidden
 420                         } else if( $expiry !== 'infinity' ) {
 421                                 // Bad expiry.
 422                                 return array('ipb_expiry_temp');
 423                         } else if( User::edits($userId) > self::HIDEUSER_CONTRIBLIMIT ) {
 424                                 // Typically, the user should have a handful of edits.
 425                                 // Disallow hiding users with many edits for performance.
 426                                 return array('ipb_hide_invalid');
 427                         }
 428                 }
 429
 430                 # Create block object
 431                 # Note: for a user block, ipb_address is only for display purposes
 432                 $block = new Block( $this->BlockAddress, $userId, $wgUser->getId(),
 433                         $reasonstr, wfTimestampNow(), 0, $expiry, $this->BlockAnonOnly,
 434                         $this->BlockCreateAccount, $this->BlockEnableAutoblock, $this->BlockHideName,
 435                         $this->BlockEmail, isset( $this->BlockAllowUsertalk ) ? $this->BlockAllowUsertalk : $wgBlockAllowsUTEdit
 436                 );
 437
 438                 # Should this be privately logged?
 439                 $suppressLog = (bool)$this->BlockHideName;
 440                 if( wfRunHooks('BlockIp', array(&$block, &$wgUser)) ) {
 441                         # Try to insert block. Is there a conflicting block?
 442                         if( !$block->insert() ) {
 443                                 # Show form unless the user is already aware of this...
 444                                 if( !$this->BlockReblock ) {
 445                                         return array( 'ipb_already_blocked' );
 446                                 # Otherwise, try to update the block...
 447                                 } else {
 448                                         # This returns direct blocks before autoblocks/rangeblocks, since we should
 449                                         # be sure the user is blocked by now it should work for our purposes
 450                                         $currentBlock = Block::newFromDB( $this->BlockAddress, $userId );
 451                                         if( $block->equals( $currentBlock ) ) {
 452                                                 return array( 'ipb_already_blocked' );
 453                                         }
 454                                         # If the name was hidden and the blocking user cannot hide
 455                                         # names, then don't allow any block changes...
 456                                         if( $currentBlock->mHideName && !$wgUser->isAllowed('hideuser') ) {
 457                                                 return array( 'hookaborted' );
 458                                         }
 459                                         $currentBlock->delete();
 460                                         $block->insert();
 461                                         # If hiding/unhiding a name, this should go in the private logs
 462                                         $suppressLog = $suppressLog || (bool)$currentBlock->mHideName;
 463                                         $log_action = 'reblock';
 464                                         # Unset _deleted fields if requested
 465                                         if( $currentBlock->mHideName && !$this->BlockHideName ) {
 466                                                 self::unsuppressUserName( $this->BlockAddress, $userId );
 467                                         }
 468                                 }
 469                         } else {
 470                                 $log_action = 'block';
 471                         }
 472                         wfRunHooks('BlockIpComplete', array($block, $wgUser));
 473
 474                         # Set *_deleted fields if requested
 475                         if( $this->BlockHideName ) {
 476                                 self::suppressUserName( $this->BlockAddress, $userId );
 477                         }
 478
 479                         # Only show watch link when this is no range block
 480                         if( $this->BlockWatchUser && $block->mRangeStart == $block->mRangeEnd ) {
 481                                 $wgUser->addWatch( Title::makeTitle( NS_USER, $this->BlockAddress ) );
 482                         }
 483
 484                         # Block constructor sanitizes certain block options on insert
 485                         $this->BlockEmail = $block->mBlockEmail;
 486                         $this->BlockEnableAutoblock = $block->mEnableAutoblock;
 487
 488                         # Prepare log parameters
 489                         $logParams = array();
 490                         $logParams[] = $expirestr;
 491                         $logParams[] = $this->blockLogFlags();
 492
 493                         # Make log entry, if the name is hidden, put it in the oversight log
 494                         $log_type = $suppressLog ? 'suppress' : 'block';
 495                         $log = new LogPage( $log_type );
 496                         $log->addEntry( $log_action, Title::makeTitle( NS_USER, $this->BlockAddress ),
 497                                 $reasonstr, $logParams );
 498
 499                         # Report to the user
 500                         return array();
 501                 } else {
 502                         return array('hookaborted');
 503                 }
 504         }
 505
 506         public static function suppressUserName( $name, $userId ) {
 507                 $op = '|'; // bitwise OR
 508                 return self::setUsernameBitfields( $name, $userId, $op );
 509         }
 510
 511         public static function unsuppressUserName( $name, $userId ) {
 512                 $op = '&'; // bitwise AND
 513                 return self::setUsernameBitfields( $name, $userId, $op );
 514         }
 515
 516         private static function setUsernameBitfields( $name, $userId, $op ) {
 517                 if( $op !== '|' && $op !== '&' ) return false; // sanity check
 518                 $dbw = wfGetDB( DB_MASTER );
 519                 $delUser = Revision::DELETED_USER | Revision::DELETED_RESTRICTED;
 520                 $delAction = LogPage::DELETED_ACTION | Revision::DELETED_RESTRICTED;
 521                 # Normalize user name
 522                 $userTitle = Title::makeTitleSafe( NS_USER, $name );
 523                 $userDbKey = $userTitle->getDBkey();
 524                 # To suppress, we OR the current bitfields with Revision::DELETED_USER
 525                 # to put a 1 in the username *_deleted bit. To unsuppress we AND the
 526                 # current bitfields with the inverse of Revision::DELETED_USER. The
 527                 # username bit is made to 0 (x & 0 = 0), while others are unchanged (x & 1 = x).
 528                 # The same goes for the sysop-restricted *_deleted bit.
 529                 if( $op == '&' ) {
 530                         $delUser = "~{$delUser}";
 531                         $delAction = "~{$delAction}";
 532                 }
 533                 # Hide name from live edits
 534                 $dbw->update( 'revision', array("rev_deleted = rev_deleted $op $delUser"),
 535                         array('rev_user' => $userId), __METHOD__ );
 536                 # Hide name from deleted edits
 537                 $dbw->update( 'archive', array("ar_deleted = ar_deleted $op $delUser"),
 538                         array('ar_user_text' => $name), __METHOD__ );
 539                 # Hide name from logs
 540                 $dbw->update( 'logging', array("log_deleted = log_deleted $op $delUser"),
 541                         array('log_user' => $userId, "log_type != 'suppress'"), __METHOD__ );
 542                 $dbw->update( 'logging', array("log_deleted = log_deleted $op $delAction"),
 543                         array('log_namespace' => NS_USER, 'log_title' => $userDbKey,
 544                                 "log_type != 'suppress'"), __METHOD__ );
 545                 # Hide name from RC
 546                 $dbw->update( 'recentchanges', array("rc_deleted = rc_deleted $op $delUser"),
 547                         array('rc_user_text' => $name), __METHOD__ );
 548                 $dbw->update( 'recentchanges', array("rc_deleted = rc_deleted $op $delAction"),
 549                         array('rc_namespace' => NS_USER, 'rc_title' => $userDbKey, 'rc_logid > 0'), __METHOD__ );
 550                 # Hide name from live images
 551                 $dbw->update( 'oldimage', array("oi_deleted = oi_deleted $op $delUser"),
 552                         array('oi_user_text' => $name), __METHOD__ );
 553                 # Hide name from deleted images
 554                 # WMF - schema change pending
 555                 # $dbw->update( 'filearchive', array("fa_deleted = fa_deleted $op $delUser"),
 556                 #       array('fa_user_text' => $name), __METHOD__ );
 557                 # Done!
 558                 return true;
 559         }
 560
 561         /**
 562          * UI entry point for blocking
 563          * Wraps around doBlock()
 564          */
 565         public function doSubmit() {
 566                 global $wgOut;
 567                 $retval = $this->doBlock();
 568                 if( empty($retval) ) {
 569                         $titleObj = SpecialPage::getTitleFor( 'Blockip' );
 570                         $wgOut->redirect( $titleObj->getFullURL( 'action=success&ip=' .
 571                                 urlencode( $this->BlockAddress ) ) );
 572                         return;
 573                 }
 574                 $this->showForm( $retval );
 575         }
 576
 577         public function showSuccess() {
 578                 global $wgOut;
 579
 580                 $wgOut->setPagetitle( wfMsg( 'blockip' ) );
 581                 $wgOut->setSubtitle( wfMsg( 'blockipsuccesssub' ) );
 582                 $text = wfMsgExt( 'blockipsuccesstext', array( 'parse' ), $this->BlockAddress );
 583                 $wgOut->addHTML( $text );
 584         }
 585
 586         private function showLogFragment( $out, $title ) {
 587                 global $wgUser;
 588                 LogEventsList::showLogExtract( $out, 'block', $title->getPrefixedText(), '',
 589                         array( 'lim' => 10, 'msgKey' => array( 'blocklog-showlog' ) ) );
 590                 // Add suppression block entries if allowed
 591                 if( $wgUser->isAllowed( 'hideuser' ) ) {
 592                         LogEventsList::showLogExtract( $out, 'suppress', $title->getPrefixedText(), '',
 593                                 array('lim' => 10, 'conds' => array('log_action' => array('block','reblock','unblock')),
 594                                 'msgKey' => array( 'blocklog-showsuppresslog' ) ) );
 595                 }
 596         }
 597
 598         /**
 599          * Return a comma-delimited list of "flags" to be passed to the log
 600          * reader for this block, to provide more information in the logs
 601          *
 602          * @return array
 603          */
 604         private function blockLogFlags() {
 605                 global $wgBlockAllowsUTEdit;
 606                 $flags = array();
 607                 if( $this->BlockAnonOnly && IP::isIPAddress( $this->BlockAddress ) )
 608                         // when blocking a user the option 'anononly' is not available/has no effect -> do not write this into log
 609                         $flags[] = 'anononly';
 610                 if( $this->BlockCreateAccount )
 611                         $flags[] = 'nocreate';
 612                 if( !$this->BlockEnableAutoblock && !IP::isIPAddress( $this->BlockAddress ) )
 613                         // Same as anononly, this is not displayed when blocking an IP address
 614                         $flags[] = 'noautoblock';
 615                 if( $this->BlockEmail )
 616                         $flags[] = 'noemail';
 617                 if( !$this->BlockAllowUsertalk && $wgBlockAllowsUTEdit )
 618                         $flags[] = 'nousertalk';
 619                 if( $this->BlockHideName )
 620                         $flags[] = 'hiddenname';
 621                 return implode( ',', $flags );
 622         }
 623
 624         /**
 625          * Builds unblock and block list links
 626          *
 627          * @return string
 628          */
 629         private function getConvenienceLinks() {
 630                 global $wgUser, $wgLang;
 631                 $skin = $wgUser->getSkin();
 632                 if( $this->BlockAddress )
 633                         $links[] = $this->getContribsLink( $skin );
 634                 $links[] = $this->getUnblockLink( $skin );
 635                 $links[] = $this->getBlockListLink( $skin );
 636                 $title = Title::makeTitle( NS_MEDIAWIKI, 'Ipbreason-dropdown' );
 637                 $links[] = $skin->link(
 638                         $title,
 639                         wfMsgHtml( 'ipb-edit-dropdown' ),
 640                         array(),
 641                         array( 'action' => 'edit' )
 642                 );
 643                 return '<p class="mw-ipb-conveniencelinks">' . $wgLang->pipeList( $links ) . '</p>';
 644         }
 645
 646         /**
 647          * Build a convenient link to a user or IP's contribs
 648          * form
 649          *
 650          * @param $skin Skin to use
 651          * @return string
 652          */
 653         private function getContribsLink( $skin ) {
 654                 $contribsPage = SpecialPage::getTitleFor( 'Contributions', $this->BlockAddress );
 655                 return $skin->link( $contribsPage, wfMsgExt( 'ipb-blocklist-contribs', 'escape', $this->BlockAddress ) );
 656         }
 657
 658         /**
 659          * Build a convenient link to unblock the given username or IP
 660          * address, if available; otherwise link to a blank unblock
 661          * form
 662          *
 663          * @param $skin Skin to use
 664          * @return string
 665          */
 666         private function getUnblockLink( $skin ) {
 667                 $list = SpecialPage::getTitleFor( 'Ipblocklist' );
 668                 $query = array( 'action' => 'unblock' );
 669
 670                 if( $this->BlockAddress ) {
 671                         $addr = strtr( $this->BlockAddress, '_', ' ' );
 672                         $message = wfMsg( 'ipb-unblock-addr', $addr );
 673                         $query['ip'] = $this->BlockAddress;
 674                 } else {
 675                         $message = wfMsg( 'ipb-unblock' );
 676                 }
 677                 return $skin->linkKnown(
 678                         $list,
 679                         htmlspecialchars($message),
 680                         array(),
 681                         $query
 682                 );
 683         }
 684
 685         /**
 686          * Build a convenience link to the block list
 687          *
 688          * @param $skin Skin to use
 689          * @return string
 690          */
 691         private function getBlockListLink( $skin ) {
 692                 $list = SpecialPage::getTitleFor( 'Ipblocklist' );
 693                 $query = array();
 694
 695                 if( $this->BlockAddress ) {
 696                         $addr = strtr( $this->BlockAddress, '_', ' ' );
 697                         $message = wfMsg( 'ipb-blocklist-addr', $addr );
 698                         $query['ip'] = $this->BlockAddress;
 699                 } else {
 700                         $message = wfMsg( 'ipb-blocklist' );
 701                 }
 702
 703                 return $skin->linkKnown(
 704                         $list,
 705                         htmlspecialchars($message),
 706                         array(),
 707                         $query
 708                 );
 709         }
 710
 711         /**
 712         * Block a list of selected users
 713         * @param array $users
 714         * @param string $reason
 715         * @param string $tag replaces user pages
 716         * @param string $talkTag replaces user talk pages
 717         * @returns array, list of html-safe usernames
 718         */
 719         public static function doMassUserBlock( $users, $reason = '', $tag = '', $talkTag = '' ) {
 720                 global $wgUser;
 721                 $counter = $blockSize = 0;
 722                 $safeUsers = array();
 723                 $log = new LogPage( 'block' );
 724                 foreach( $users as $name ) {
 725                         # Enforce limits
 726                         $counter++;
 727                         $blockSize++;
 728                         # Lets not go *too* fast
 729                         if( $blockSize >= 20 ) {
 730                                 $blockSize = 0;
 731                                 wfWaitForSlaves( 5 );
 732                         }
 733                         $u = User::newFromName( $name, false );
 734                         // If user doesn't exist, it ought to be an IP then
 735                         if( is_null($u) || (!$u->getId() && !IP::isIPAddress( $u->getName() )) ) {
 736                                 continue;
 737                         }
 738                         $userTitle = $u->getUserPage();
 739                         $userTalkTitle = $u->getTalkPage();
 740                         $userpage = new Article( $userTitle );
 741                         $usertalk = new Article( $userTalkTitle );
 742                         $safeUsers[] = '[[' . $userTitle->getPrefixedText() . '|' . $userTitle->getText() . ']]';
 743                         $expirestr = $u->getId() ? 'indefinite' : '1 week';
 744                         $expiry = Block::parseExpiryInput( $expirestr );
 745                         $anonOnly = IP::isIPAddress( $u->getName() ) ? 1 : 0;
 746                         // Create the block
 747                         $block = new Block( $u->getName(), // victim
 748                                 $u->getId(), // uid
 749                                 $wgUser->getId(), // blocker
 750                                 $reason, // comment
 751                                 wfTimestampNow(), // block time
 752                                 0, // auto ?
 753                                 $expiry, // duration
 754                                 $anonOnly, // anononly?
 755                                 1, // block account creation?
 756                                 1, // autoblocking?
 757                                 0, // suppress name?
 758                                 0 // block from sending email?
 759                         );
 760                         $oldblock = Block::newFromDB( $u->getName(), $u->getId() );
 761                         if( !$oldblock ) {
 762                                 $block->insert();
 763                                 # Prepare log parameters
 764                                 $logParams = array();
 765                                 $logParams[] = $expirestr;
 766                                 if( $anonOnly ) {
 767                                         $logParams[] = 'anononly';
 768                                 }
 769                                 $logParams[] = 'nocreate';
 770                                 # Add log entry
 771                                 $log->addEntry( 'block', $userTitle, $reason, $logParams );
 772                         }
 773                         # Tag userpage! (check length to avoid mistakes)
 774                         if( strlen($tag) > 2 ) {
 775                                 $userpage->doEdit( $tag, $reason, EDIT_MINOR );
 776                         }
 777                         if( strlen($talkTag) > 2 ) {
 778                                 $usertalk->doEdit( $talkTag, $reason, EDIT_MINOR );
 779                         }
 780                 }
 781                 return $safeUsers;
 782         }
 783 }