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
  15         # Can't block when the database is locked
  16         if( wfReadOnly() ) {
  17                 $wgOut->readOnlyPage();
  18                 return;
  19         }
  20         # Permission check
  21         if( !$wgUser->isAllowed( 'block' ) ) {
  22                 $wgOut->permissionRequired( 'block' );
  23                 return;
  24         }
  25
  26         $ipb = new IPBlockForm( $par );
  27
  28         $action = $wgRequest->getVal( 'action' );
  29         if( 'success' == $action ) {
  30                 $ipb->showSuccess();
  31         } elseif( $wgRequest->wasPosted() && 'submit' == $action &&
  32                 $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ) ) ) {
  33                 $ipb->doSubmit();
  34         } else {
  35                 $ipb->showForm( '' );
  36         }
  37 }
  38
  39 /**
  40  * Form object for the Special:Blockip page.
  41  *
  42  * @ingroup SpecialPage
  43  */
  44 class IPBlockForm {
  45         var $BlockAddress, $BlockExpiry, $BlockReason;
  46         // The maximum number of edits a user can have and still be hidden
  47         const HIDEUSER_CONTRIBLIMIT = 1000;
  48
  49         public function __construct( $par ) {
  50                 global $wgRequest, $wgUser, $wgBlockAllowsUTEdit;
  51
  52                 $this->BlockAddress = $wgRequest->getVal( 'wpBlockAddress', $wgRequest->getVal( 'ip', $par ) );
  53                 $this->BlockAddress = strtr( $this->BlockAddress, '_', ' ' );
  54                 $this->BlockReason = $wgRequest->getText( 'wpBlockReason' );
  55                 $this->BlockReasonList = $wgRequest->getText( 'wpBlockReasonList' );
  56                 $this->BlockExpiry = $wgRequest->getVal( 'wpBlockExpiry', wfMsg( 'ipbotheroption' ) );
  57                 $this->BlockOther = $wgRequest->getVal( 'wpBlockOther', '' );
  58
  59                 # Unchecked checkboxes are not included in the form data at all, so having one
  60                 # that is true by default is a bit tricky
  61                 $byDefault = !$wgRequest->wasPosted();
  62                 $this->BlockAnonOnly = $wgRequest->getBool( 'wpAnonOnly', $byDefault );
  63                 $this->BlockCreateAccount = $wgRequest->getBool( 'wpCreateAccount', $byDefault );
  64                 $this->BlockEnableAutoblock = $wgRequest->getBool( 'wpEnableAutoblock', $byDefault );
  65                 $this->BlockEmail = false;
  66                 if( self::canBlockEmail( $wgUser ) ) {
  67                         $this->BlockEmail = $wgRequest->getBool( 'wpEmailBan', false );
  68                 }
  69                 $this->BlockWatchUser = $wgRequest->getBool( 'wpWatchUser', false );
  70                 # Re-check user's rights to hide names, very serious, defaults to 0
  71                 $this->BlockHideName = ( $wgRequest->getBool( 'wpHideName', 0 ) && $wgUser->isAllowed( 'hideuser' ) ) ? 1 : 0;
  72                 $this->BlockAllowUsertalk = ( $wgRequest->getBool( 'wpAllowUsertalk', $byDefault ) && $wgBlockAllowsUTEdit );
  73                 $this->BlockReblock = $wgRequest->getBool( 'wpChangeBlock', false );
  74         }
  75
  76         public function showForm( $err ) {
  77                 global $wgOut, $wgUser, $wgSysopUserBans;
  78
  79                 $wgOut->setPageTitle( wfMsg( 'blockip' ) );
  80                 $wgOut->addWikiMsg( 'blockiptext' );
  81
  82                 if( $wgSysopUserBans ) {
  83                         $mIpaddress = Xml::label( wfMsg( 'ipadressorusername' ), 'mw-bi-target' );
  84                 } else {
  85                         $mIpaddress = Xml::label( wfMsg( 'ipaddress' ), 'mw-bi-target' );
  86                 }
  87                 $mIpbexpiry = Xml::label( wfMsg( 'ipbexpiry' ), 'wpBlockExpiry' );
  88                 $mIpbother = Xml::label( wfMsg( 'ipbother' ), 'mw-bi-other' );
  89                 $mIpbreasonother = Xml::label( wfMsg( 'ipbreason' ), 'wpBlockReasonList' );
  90                 $mIpbreason = Xml::label( wfMsg( 'ipbotherreason' ), 'mw-bi-reason' );
  91
  92                 $titleObj = SpecialPage::getTitleFor( 'Blockip' );
  93                 $user = User::newFromName( $this->BlockAddress );
  94
  95                 $alreadyBlocked = false;
  96                 if( $err && $err[0] != 'ipb_already_blocked' ) {
  97                         $key = array_shift( $err );
  98                         $msg = wfMsgReal( $key, $err );
  99                         $wgOut->setSubtitle( wfMsgHtml( 'formerror' ) );
 100                         $wgOut->addHTML( Xml::tags( 'p', array( 'class' => 'error' ), $msg ) );
 101                 } elseif( $this->BlockAddress ) {
 102                         $userId = 0;
 103                         if( is_object( $user ) )
 104                                 $userId = $user->getId();
 105                         $currentBlock = Block::newFromDB( $this->BlockAddress, $userId );
 106                         if( !is_null( $currentBlock ) && !$currentBlock->mAuto && # The block exists and isn't an autoblock
 107                                 ( $currentBlock->mRangeStart == $currentBlock->mRangeEnd || # The block isn't a rangeblock
 108                                 # or if it is, the range is what we're about to block
 109                                 ( $currentBlock->mAddress == $this->BlockAddress ) ) ) {
 110                                         $wgOut->addWikiMsg( 'ipb-needreblock', $this->BlockAddress );
 111                                         $alreadyBlocked = true;
 112                                         # Set the block form settings to the existing block
 113                                         $this->BlockAnonOnly = $currentBlock->mAnonOnly;
 114                                         $this->BlockCreateAccount = $currentBlock->mCreateAccount;
 115                                         $this->BlockEnableAutoblock = $currentBlock->mEnableAutoblock;
 116                                         $this->BlockEmail = $currentBlock->mBlockEmail;
 117                                         $this->BlockHideName = $currentBlock->mHideName;
 118                                         $this->BlockAllowUsertalk = $currentBlock->mAllowUsertalk;
 119                                         if( $currentBlock->mExpiry == 'infinity' ) {
 120                                                 $this->BlockOther = 'indefinite';
 121                                         } else {
 122                                                 $this->BlockOther = wfTimestamp( TS_ISO_8601, $currentBlock->mExpiry );
 123                                         }
 124                                         $this->BlockReason = $currentBlock->mReason;
 125                         }
 126                 }
 127
 128                 $scBlockExpiryOptions = wfMsgForContent( 'ipboptions' );
 129
 130                 $showblockoptions = $scBlockExpiryOptions != '-';
 131                 if( !$showblockoptions ) $mIpbother = $mIpbexpiry;
 132
 133                 $blockExpiryFormOptions = Xml::option( wfMsg( 'ipbotheroption' ), 'other' );
 134                 foreach( explode( ',', $scBlockExpiryOptions ) as $option ) {
 135                         if( strpos( $option, ':' ) === false ) $option = "$option:$option";
 136                         list( $show, $value ) = explode( ':', $option );
 137                         $show = htmlspecialchars( $show );
 138                         $value = htmlspecialchars( $value );
 139                         $blockExpiryFormOptions .= Xml::option( $show, $value, $this->BlockExpiry === $value ? true : false ) . "\n";
 140                 }
 141
 142                 $reasonDropDown = Xml::listDropDown( 'wpBlockReasonList',
 143                         wfMsgForContent( 'ipbreason-dropdown' ),
 144                         wfMsgForContent( 'ipbreasonotherlist' ), $this->BlockReasonList, 'wpBlockDropDown', 4 );
 145
 146                 global $wgStylePath, $wgStyleVersion;
 147                 $wgOut->addHTML(
 148                         Xml::tags( 'script', array( 'type' => 'text/javascript', 'src' => "$wgStylePath/common/block.js?$wgStyleVersion" ), '' ) .
 149                         Xml::openElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalURL( 'action=submit' ), 'id' => 'blockip' ) ) .
 150                         Xml::openElement( 'fieldset' ) .
 151                         Xml::element( 'legend', null, wfMsg( 'blockip-legend' ) ) .
 152                         Xml::openElement( 'table', array( 'border' => '0', 'id' => 'mw-blockip-table' ) ) .
 153                         "<tr>
 154                                 <td class='mw-label'>
 155                                         {$mIpaddress}
 156                                 </td>
 157                                 <td class='mw-input'>" .
 158                                         Html::input( 'wpBlockAddress', $this->BlockAddress, 'text', array(
 159                                                 'tabindex' => '1',
 160                                                 'id' => 'mw-bi-target',
 161                                                 'onchange' => 'updateBlockOptions()',
 162                                                 'size' => '45',
 163                                                 'required' => ''
 164                                         ) + ( $this->BlockAddress ? array() : array( 'autofocus' ) ) ). "
 165                                 </td>
 166                         </tr>
 167                         <tr>"
 168                 );
 169                 if( $showblockoptions ) {
 170                         $wgOut->addHTML("
 171                                 <td class='mw-label'>
 172                                         {$mIpbexpiry}
 173                                 </td>
 174                                 <td class='mw-input'>" .
 175                                         Xml::tags( 'select',
 176                                                 array(
 177                                                         'id' => 'wpBlockExpiry',
 178                                                         'name' => 'wpBlockExpiry',
 179                                                         'onchange' => 'considerChangingExpiryFocus()',
 180                                                         'tabindex' => '2' ),
 181                                                 $blockExpiryFormOptions ) .
 182                                 "</td>"
 183                         );
 184                 }
 185                 $wgOut->addHTML("
 186                         </tr>
 187                         <tr id='wpBlockOther'>
 188                                 <td class='mw-label'>
 189                                         {$mIpbother}
 190                                 </td>
 191                                 <td class='mw-input'>" .
 192                                         Xml::input( 'wpBlockOther', 45, $this->BlockOther,
 193                                                 array( 'tabindex' => '3', 'id' => 'mw-bi-other' ) ) . "
 194                                 </td>
 195                         </tr>
 196                         <tr>
 197                                 <td class='mw-label'>
 198                                         {$mIpbreasonother}
 199                                 </td>
 200                                 <td class='mw-input'>
 201                                         {$reasonDropDown}
 202                                 </td>
 203                         </tr>
 204                         <tr id=\"wpBlockReason\">
 205                                 <td class='mw-label'>
 206                                         {$mIpbreason}
 207                                 </td>
 208                                 <td class='mw-input'>" .
 209                                 Html::input( 'wpBlockReason', $this->BlockReason, 'text', array(
 210                                         'tabindex' => '5',
 211                                         'id' => 'mw-bi-reason',
 212                                         'maxlength' => '200',
 213                                         'size' => '45'
 214                                 ) + ( $this->BlockAddress ? array( 'autofocus' ) : array() ) ) . "
 215                                 </td>
 216                         </tr>
 217                         <tr id='wpAnonOnlyRow'>
 218                                 <td>&nbsp;</td>
 219                                 <td class='mw-input'>" .
 220                                 Xml::checkLabel( wfMsg( 'ipbanononly' ),
 221                                                 'wpAnonOnly', 'wpAnonOnly', $this->BlockAnonOnly,
 222                                                 array( 'tabindex' => '6' ) ) . "
 223                                 </td>
 224                         </tr>
 225                         <tr id='wpCreateAccountRow'>
 226                                 <td>&nbsp;</td>
 227                                 <td class='mw-input'>" .
 228                                         Xml::checkLabel( wfMsg( 'ipbcreateaccount' ),
 229                                                 'wpCreateAccount', 'wpCreateAccount', $this->BlockCreateAccount,
 230                                                 array( 'tabindex' => '7' ) ) . "
 231                                 </td>
 232                         </tr>
 233                         <tr id='wpEnableAutoblockRow'>
 234                                 <td>&nbsp;</td>
 235                                 <td class='mw-input'>" .
 236                                         Xml::checkLabel( wfMsg( 'ipbenableautoblock' ),
 237                                                 'wpEnableAutoblock', 'wpEnableAutoblock', $this->BlockEnableAutoblock,
 238                                                 array( 'tabindex' => '8' ) ) . "
 239                                 </td>
 240                         </tr>"
 241                 );
 242
 243                 if( self::canBlockEmail( $wgUser ) ) {
 244                         $wgOut->addHTML("
 245                                 <tr id='wpEnableEmailBan'>
 246                                         <td>&nbsp;</td>
 247                                         <td class='mw-input'>" .
 248                                                 Xml::checkLabel( wfMsg( 'ipbemailban' ),
 249                                                         'wpEmailBan', 'wpEmailBan', $this->BlockEmail,
 250                                                         array( 'tabindex' => '9' ) ) . "
 251                                         </td>
 252                                 </tr>"
 253                         );
 254                 }
 255
 256                 // Allow some users to hide name from block log, blocklist and listusers
 257                 if( $wgUser->isAllowed( 'hideuser' ) ) {
 258                         $wgOut->addHTML("
 259                                 <tr id='wpEnableHideUser'>
 260                                         <td>&nbsp;</td>
 261                                         <td class='mw-input'><strong>" .
 262                                                 Xml::checkLabel( wfMsg( 'ipbhidename' ),
 263                                                         'wpHideName', 'wpHideName', $this->BlockHideName,
 264                                                         array( 'tabindex' => '10' ) ) . "
 265                                         </strong></td>
 266                                 </tr>"
 267                         );
 268                 }
 269
 270                 # Watchlist their user page?
 271                 $wgOut->addHTML("
 272                         <tr id='wpEnableWatchUser'>
 273                                 <td>&nbsp;</td>
 274                                 <td class='mw-input'>" .
 275                                         Xml::checkLabel( wfMsg( 'ipbwatchuser' ),
 276                                                 'wpWatchUser', 'wpWatchUser', $this->BlockWatchUser,
 277                                                 array( 'tabindex' => '11' ) ) . "
 278                                 </td>
 279                         </tr>"
 280                 );
 281
 282                 # Can we explicitly disallow the use of user_talk?
 283                 global $wgBlockAllowsUTEdit;
 284                 if( $wgBlockAllowsUTEdit ){
 285                         $wgOut->addHTML("
 286                                 <tr id='wpAllowUsertalkRow'>
 287                                         <td>&nbsp;</td>
 288                                         <td class='mw-input'>" .
 289                                                 Xml::checkLabel( wfMsg( 'ipballowusertalk' ),
 290                                                         'wpAllowUsertalk', 'wpAllowUsertalk', $this->BlockAllowUsertalk,
 291                                                         array( 'tabindex' => '12' ) ) . "
 292                                         </td>
 293                                 </tr>"
 294                         );
 295                 }
 296
 297                 $wgOut->addHTML("
 298                         <tr>
 299                                 <td style='padding-top: 1em'>&nbsp;</td>
 300                                 <td  class='mw-submit' style='padding-top: 1em'>" .
 301                                         Xml::submitButton( wfMsg( $alreadyBlocked ? 'ipb-change-block' : 'ipbsubmit' ),
 302                                                 array( 'name' => 'wpBlock', 'tabindex' => '13', 'accesskey' => 's' ) ) . "
 303                                 </td>
 304                         </tr>" .
 305                         Xml::closeElement( 'table' ) .
 306                         Xml::hidden( 'wpEditToken', $wgUser->editToken() ) .
 307                         ( $alreadyBlocked ? Xml::hidden( 'wpChangeBlock', 1 ) : "" ) .
 308                         Xml::closeElement( 'fieldset' ) .
 309                         Xml::closeElement( 'form' ) .
 310                         Xml::tags( 'script', array( 'type' => 'text/javascript' ), 'updateBlockOptions()' ) . "\n"
 311                 );
 312
 313                 $wgOut->addHTML( $this->getConvenienceLinks() );
 314
 315                 if( is_object( $user ) ) {
 316                         $this->showLogFragment( $wgOut, $user->getUserPage() );
 317                 } elseif( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/', $this->BlockAddress ) ) {
 318                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 319                 } 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 ) ) {
 320                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 321                 }
 322         }
 323
 324         /**
 325          * Can we do an email block?
 326          * @param User $user The sysop wanting to make a block
 327          * @return boolean
 328          */
 329         public static function canBlockEmail( $user ) {
 330                 global $wgEnableUserEmail, $wgSysopEmailBans;
 331                 return ( $wgEnableUserEmail && $wgSysopEmailBans && $user->isAllowed( 'blockemail' ) );
 332         }
 333
 334         /**
 335          * Backend block code.
 336          * $userID and $expiry will be filled accordingly
 337          * @return array(message key, arguments) on failure, empty array on success
 338          */
 339         function doBlock( &$userId = null, &$expiry = null ) {
 340                 global $wgUser, $wgSysopUserBans, $wgSysopRangeBans, $wgBlockAllowsUTEdit;
 341
 342                 $userId = 0;
 343                 # Expand valid IPv6 addresses, usernames are left as is
 344                 $this->BlockAddress = IP::sanitizeIP( $this->BlockAddress );
 345                 # isIPv4() and IPv6() are used for final validation
 346                 $rxIP4 = '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}';
 347                 $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}';
 348                 $rxIP = "($rxIP4|$rxIP6)";
 349
 350                 # Check for invalid specifications
 351                 if( !preg_match( "/^$rxIP$/", $this->BlockAddress ) ) {
 352                         $matches = array();
 353                         if( preg_match( "/^($rxIP4)\\/(\\d{1,2})$/", $this->BlockAddress, $matches ) ) {
 354                                 # IPv4
 355                                 if( $wgSysopRangeBans ) {
 356                                         if( !IP::isIPv4( $this->BlockAddress ) || $matches[2] < 16 || $matches[2] > 32 ) {
 357                                                 return array( 'ip_range_invalid' );
 358                                         }
 359                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 360                                 } else {
 361                                         # Range block illegal
 362                                         return array( 'range_block_disabled' );
 363                                 }
 364                         } elseif( preg_match( "/^($rxIP6)\\/(\\d{1,3})$/", $this->BlockAddress, $matches ) ) {
 365                                 # IPv6
 366                                 if( $wgSysopRangeBans ) {
 367                                         if( !IP::isIPv6( $this->BlockAddress ) || $matches[2] < 64 || $matches[2] > 128 ) {
 368                                                 return array( 'ip_range_invalid' );
 369                                         }
 370                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 371                                 } else {
 372                                         # Range block illegal
 373                                         return array('range_block_disabled');
 374                                 }
 375                         } else {
 376                                 # Username block
 377                                 if( $wgSysopUserBans ) {
 378                                         $user = User::newFromName( $this->BlockAddress );
 379                                         if( !is_null( $user ) && $user->getId() ) {
 380                                                 # Use canonical name
 381                                                 $userId = $user->getId();
 382                                                 $this->BlockAddress = $user->getName();
 383                                         } else {
 384                                                 return array( 'nosuchusershort', htmlspecialchars( $user ? $user->getName() : $this->BlockAddress ) );
 385                                         }
 386                                 } else {
 387                                         return array( 'badipaddress' );
 388                                 }
 389                         }
 390                 }
 391
 392                 if( $wgUser->isBlocked() && ( $wgUser->getId() !== $userId ) ) {
 393                         return array( 'cant-block-while-blocked' );
 394                 }
 395
 396                 $reasonstr = $this->BlockReasonList;
 397                 if( $reasonstr != 'other' && $this->BlockReason != '' ) {
 398                         // Entry from drop down menu + additional comment
 399                         $reasonstr .= wfMsgForContent( 'colon-separator' ) . $this->BlockReason;
 400                 } elseif( $reasonstr == 'other' ) {
 401                         $reasonstr = $this->BlockReason;
 402                 }
 403
 404                 $expirestr = $this->BlockExpiry;
 405                 if( $expirestr == 'other' )
 406                         $expirestr = $this->BlockOther;
 407
 408                 if( ( strlen( $expirestr ) == 0) || ( strlen( $expirestr ) > 50 ) ) {
 409                         return array( 'ipb_expiry_invalid' );
 410                 }
 411
 412                 if( false === ( $expiry = Block::parseExpiryInput( $expirestr ) ) ) {
 413                         // Bad expiry.
 414                         return array( 'ipb_expiry_invalid' );
 415                 }
 416
 417                 if( $this->BlockHideName ) {
 418                         // Recheck params here...
 419                         if( !$userId || !$wgUser->isAllowed('hideuser') ) {
 420                                 $this->BlockHideName = false; // IP users should not be hidden
 421                         } elseif( $expiry !== 'infinity' ) {
 422                                 // Bad expiry.
 423                                 return array( 'ipb_expiry_temp' );
 424                         } elseif( User::edits( $userId ) > self::HIDEUSER_CONTRIBLIMIT ) {
 425                                 // Typically, the user should have a handful of edits.
 426                                 // Disallow hiding users with many edits for performance.
 427                                 return array( 'ipb_hide_invalid' );
 428                         }
 429                 }
 430
 431                 # Create block object
 432                 # Note: for a user block, ipb_address is only for display purposes
 433                 $block = new Block( $this->BlockAddress, $userId, $wgUser->getId(),
 434                         $reasonstr, wfTimestampNow(), 0, $expiry, $this->BlockAnonOnly,
 435                         $this->BlockCreateAccount, $this->BlockEnableAutoblock, $this->BlockHideName,
 436                         $this->BlockEmail, isset( $this->BlockAllowUsertalk ) ? $this->BlockAllowUsertalk : $wgBlockAllowsUTEdit
 437                 );
 438
 439                 # Should this be privately logged?
 440                 $suppressLog = (bool)$this->BlockHideName;
 441                 if( wfRunHooks( 'BlockIp', array( &$block, &$wgUser ) ) ) {
 442                         # Try to insert block. Is there a conflicting block?
 443                         if( !$block->insert() ) {
 444                                 # Show form unless the user is already aware of this...
 445                                 if( !$this->BlockReblock ) {
 446                                         return array( 'ipb_already_blocked' );
 447                                 # Otherwise, try to update the block...
 448                                 } else {
 449                                         # This returns direct blocks before autoblocks/rangeblocks, since we should
 450                                         # be sure the user is blocked by now it should work for our purposes
 451                                         $currentBlock = Block::newFromDB( $this->BlockAddress, $userId );
 452                                         if( $block->equals( $currentBlock ) ) {
 453                                                 return array( 'ipb_already_blocked' );
 454                                         }
 455                                         # If the name was hidden and the blocking user cannot hide
 456                                         # names, then don't allow any block changes...
 457                                         if( $currentBlock->mHideName && !$wgUser->isAllowed( 'hideuser' ) ) {
 458                                                 return array( 'cant-see-hidden-user' );
 459                                         }
 460                                         $currentBlock->delete();
 461                                         $block->insert();
 462                                         # If hiding/unhiding a name, this should go in the private logs
 463                                         $suppressLog = $suppressLog || (bool)$currentBlock->mHideName;
 464                                         $log_action = 'reblock';
 465                                         # Unset _deleted fields if requested
 466                                         if( $currentBlock->mHideName && !$this->BlockHideName ) {
 467                                                 self::unsuppressUserName( $this->BlockAddress, $userId );
 468                                         }
 469                                 }
 470                         } else {
 471                                 $log_action = 'block';
 472                         }
 473                         wfRunHooks( 'BlockIpComplete', array( $block, $wgUser ) );
 474
 475                         # Set *_deleted fields if requested
 476                         if( $this->BlockHideName ) {
 477                                 self::suppressUserName( $this->BlockAddress, $userId );
 478                         }
 479
 480                         # Only show watch link when this is no range block
 481                         if( $this->BlockWatchUser && $block->mRangeStart == $block->mRangeEnd ) {
 482                                 $wgUser->addWatch( Title::makeTitle( NS_USER, $this->BlockAddress ) );
 483                         }
 484
 485                         # Block constructor sanitizes certain block options on insert
 486                         $this->BlockEmail = $block->mBlockEmail;
 487                         $this->BlockEnableAutoblock = $block->mEnableAutoblock;
 488
 489                         # Prepare log parameters
 490                         $logParams = array();
 491                         $logParams[] = $expirestr;
 492                         $logParams[] = $this->blockLogFlags();
 493
 494                         # Make log entry, if the name is hidden, put it in the oversight log
 495                         $log_type = $suppressLog ? 'suppress' : 'block';
 496                         $log = new LogPage( $log_type );
 497                         $log->addEntry( $log_action, Title::makeTitle( NS_USER, $this->BlockAddress ),
 498                                 $reasonstr, $logParams );
 499
 500                         # Report to the user
 501                         return array();
 502                 } else {
 503                         return array( 'hookaborted' );
 504                 }
 505         }
 506
 507         public static function suppressUserName( $name, $userId ) {
 508                 $op = '|'; // bitwise OR
 509                 return self::setUsernameBitfields( $name, $userId, $op );
 510         }
 511
 512         public static function unsuppressUserName( $name, $userId ) {
 513                 $op = '&'; // bitwise AND
 514                 return self::setUsernameBitfields( $name, $userId, $op );
 515         }
 516
 517         private static function setUsernameBitfields( $name, $userId, $op ) {
 518                 if( $op !== '|' && $op !== '&' ) return false; // sanity check
 519                 $dbw = wfGetDB( DB_MASTER );
 520                 $delUser = Revision::DELETED_USER | Revision::DELETED_RESTRICTED;
 521                 $delAction = LogPage::DELETED_ACTION | Revision::DELETED_RESTRICTED;
 522                 # Normalize user name
 523                 $userTitle = Title::makeTitleSafe( NS_USER, $name );
 524                 $userDbKey = $userTitle->getDBkey();
 525                 # To suppress, we OR the current bitfields with Revision::DELETED_USER
 526                 # to put a 1 in the username *_deleted bit. To unsuppress we AND the
 527                 # current bitfields with the inverse of Revision::DELETED_USER. The
 528                 # username bit is made to 0 (x & 0 = 0), while others are unchanged (x & 1 = x).
 529                 # The same goes for the sysop-restricted *_deleted bit.
 530                 if( $op == '&' ) {
 531                         $delUser = "~{$delUser}";
 532                         $delAction = "~{$delAction}";
 533                 }
 534                 # Hide name from live edits
 535                 $dbw->update( 'revision', array( "rev_deleted = rev_deleted $op $delUser" ),
 536                         array( 'rev_user' => $userId ), __METHOD__ );
 537                 # Hide name from deleted edits
 538                 $dbw->update( 'archive', array( "ar_deleted = ar_deleted $op $delUser" ),
 539                         array( 'ar_user_text' => $name ), __METHOD__ );
 540                 # Hide name from logs
 541                 $dbw->update( 'logging', array( "log_deleted = log_deleted $op $delUser" ),
 542                         array( 'log_user' => $userId, "log_type != 'suppress'" ), __METHOD__ );
 543                 $dbw->update( 'logging', array( "log_deleted = log_deleted $op $delAction" ),
 544                         array( 'log_namespace' => NS_USER, 'log_title' => $userDbKey,
 545                                 "log_type != 'suppress'" ), __METHOD__ );
 546                 # Hide name from RC
 547                 $dbw->update( 'recentchanges', array( "rc_deleted = rc_deleted $op $delUser" ),
 548                         array( 'rc_user_text' => $name ), __METHOD__ );
 549                 $dbw->update( 'recentchanges', array( "rc_deleted = rc_deleted $op $delAction" ),
 550                         array( 'rc_namespace' => NS_USER, 'rc_title' => $userDbKey, 'rc_logid > 0' ), __METHOD__ );
 551                 # Hide name from live images
 552                 $dbw->update( 'oldimage', array( "oi_deleted = oi_deleted $op $delUser" ),
 553                         array( 'oi_user_text' => $name ), __METHOD__ );
 554                 # Hide name from deleted images
 555                 # WMF - schema change pending
 556                 # $dbw->update( 'filearchive', array( "fa_deleted = fa_deleted $op $delUser" ),
 557                 #       array( 'fa_user_text' => $name ), __METHOD__ );
 558                 # Done!
 559                 return true;
 560         }
 561
 562         /**
 563          * UI entry point for blocking
 564          * Wraps around doBlock()
 565          */
 566         public function doSubmit() {
 567                 global $wgOut;
 568                 $retval = $this->doBlock();
 569                 if( empty( $retval ) ) {
 570                         $titleObj = SpecialPage::getTitleFor( 'Blockip' );
 571                         $wgOut->redirect( $titleObj->getFullURL( 'action=success&ip=' .
 572                                 urlencode( $this->BlockAddress ) ) );
 573                         return;
 574                 }
 575                 $this->showForm( $retval );
 576         }
 577
 578         public function showSuccess() {
 579                 global $wgOut;
 580
 581                 $wgOut->setPageTitle( wfMsg( 'blockip' ) );
 582                 $wgOut->setSubtitle( wfMsg( 'blockipsuccesssub' ) );
 583                 $text = wfMsgExt( 'blockipsuccesstext', array( 'parse' ), $this->BlockAddress );
 584                 $wgOut->addHTML( $text );
 585         }
 586
 587         private function showLogFragment( $out, $title ) {
 588                 global $wgUser;
 589
 590                 // Used to support GENDER in 'blocklog-showlog' and 'blocklog-showsuppresslog'
 591                 $userBlocked = $title->getText();
 592
 593                 LogEventsList::showLogExtract(
 594                         $out,
 595                         'block',
 596                         $title->getPrefixedText(),
 597                         '',
 598                         array(
 599                                 'lim' => 10,
 600                                 'msgKey' => array(
 601                                         'blocklog-showlog',
 602                                         $userBlocked
 603                                 ),
 604                                 'showIfEmpty' => false
 605                         )
 606                 );
 607
 608                 // Add suppression block entries if allowed
 609                 if( $wgUser->isAllowed( 'hideuser' ) ) {
 610                         LogEventsList::showLogExtract( $out, 'suppress', $title->getPrefixedText(), '',
 611                                 array(
 612                                         'lim' => 10,
 613                                         'conds' => array(
 614                                                 'log_action' => array(
 615                                                         'block',
 616                                                         'reblock',
 617                                                         'unblock'
 618                                                 )
 619                                         ),
 620                                         'msgKey' => array(
 621                                                 'blocklog-showsuppresslog',
 622                                                 $userBlocked
 623                                         ),
 624                                         'showIfEmpty' => false
 625                                 )
 626                         );
 627                 }
 628         }
 629
 630         /**
 631          * Return a comma-delimited list of "flags" to be passed to the log
 632          * reader for this block, to provide more information in the logs
 633          *
 634          * @return array
 635          */
 636         private function blockLogFlags() {
 637                 global $wgBlockAllowsUTEdit;
 638                 $flags = array();
 639                 if( $this->BlockAnonOnly && IP::isIPAddress( $this->BlockAddress ) )
 640                         // when blocking a user the option 'anononly' is not available/has no effect -> do not write this into log
 641                         $flags[] = 'anononly';
 642                 if( $this->BlockCreateAccount )
 643                         $flags[] = 'nocreate';
 644                 if( !$this->BlockEnableAutoblock && !IP::isIPAddress( $this->BlockAddress ) )
 645                         // Same as anononly, this is not displayed when blocking an IP address
 646                         $flags[] = 'noautoblock';
 647                 if( $this->BlockEmail )
 648                         $flags[] = 'noemail';
 649                 if( !$this->BlockAllowUsertalk && $wgBlockAllowsUTEdit )
 650                         $flags[] = 'nousertalk';
 651                 if( $this->BlockHideName )
 652                         $flags[] = 'hiddenname';
 653                 return implode( ',', $flags );
 654         }
 655
 656         /**
 657          * Builds unblock and block list links
 658          *
 659          * @return string
 660          */
 661         private function getConvenienceLinks() {
 662                 global $wgUser, $wgLang;
 663                 $skin = $wgUser->getSkin();
 664                 if( $this->BlockAddress )
 665                         $links[] = $this->getContribsLink( $skin );
 666                 $links[] = $this->getUnblockLink( $skin );
 667                 $links[] = $this->getBlockListLink( $skin );
 668                 $title = Title::makeTitle( NS_MEDIAWIKI, 'Ipbreason-dropdown' );
 669                 $links[] = $skin->link(
 670                         $title,
 671                         wfMsgHtml( 'ipb-edit-dropdown' ),
 672                         array(),
 673                         array( 'action' => 'edit' )
 674                 );
 675                 return '<p class="mw-ipb-conveniencelinks">' . $wgLang->pipeList( $links ) . '</p>';
 676         }
 677
 678         /**
 679          * Build a convenient link to a user or IP's contribs
 680          * form
 681          *
 682          * @param $skin Skin to use
 683          * @return string
 684          */
 685         private function getContribsLink( $skin ) {
 686                 $contribsPage = SpecialPage::getTitleFor( 'Contributions', $this->BlockAddress );
 687                 return $skin->link( $contribsPage, wfMsgExt( 'ipb-blocklist-contribs', 'escape', $this->BlockAddress ) );
 688         }
 689
 690         /**
 691          * Build a convenient link to unblock the given username or IP
 692          * address, if available; otherwise link to a blank unblock
 693          * form
 694          *
 695          * @param $skin Skin to use
 696          * @return string
 697          */
 698         private function getUnblockLink( $skin ) {
 699                 $list = SpecialPage::getTitleFor( 'Ipblocklist' );
 700                 $query = array( 'action' => 'unblock' );
 701
 702                 if( $this->BlockAddress ) {
 703                         $addr = strtr( $this->BlockAddress, '_', ' ' );
 704                         $message = wfMsg( 'ipb-unblock-addr', $addr );
 705                         $query['ip'] = $this->BlockAddress;
 706                 } else {
 707                         $message = wfMsg( 'ipb-unblock' );
 708                 }
 709                 return $skin->linkKnown(
 710                         $list,
 711                         htmlspecialchars( $message ),
 712                         array(),
 713                         $query
 714                 );
 715         }
 716
 717         /**
 718          * Build a convenience link to the block list
 719          *
 720          * @param $skin Skin to use
 721          * @return string
 722          */
 723         private function getBlockListLink( $skin ) {
 724                 $list = SpecialPage::getTitleFor( 'Ipblocklist' );
 725                 $query = array();
 726
 727                 if( $this->BlockAddress ) {
 728                         $addr = strtr( $this->BlockAddress, '_', ' ' );
 729                         $message = wfMsg( 'ipb-blocklist-addr', $addr );
 730                         $query['ip'] = $this->BlockAddress;
 731                 } else {
 732                         $message = wfMsg( 'ipb-blocklist' );
 733                 }
 734
 735                 return $skin->linkKnown(
 736                         $list,
 737                         htmlspecialchars( $message ),
 738                         array(),
 739                         $query
 740                 );
 741         }
 742
 743         /**
 744          * Block a list of selected users
 745          * @param array $users
 746          * @param string $reason
 747          * @param string $tag replaces user pages
 748          * @param string $talkTag replaces user talk pages
 749          * @returns array, list of html-safe usernames
 750          */
 751         public static function doMassUserBlock( $users, $reason = '', $tag = '', $talkTag = '' ) {
 752                 global $wgUser;
 753                 $counter = $blockSize = 0;
 754                 $safeUsers = array();
 755                 $log = new LogPage( 'block' );
 756                 foreach( $users as $name ) {
 757                         # Enforce limits
 758                         $counter++;
 759                         $blockSize++;
 760                         # Lets not go *too* fast
 761                         if( $blockSize >= 20 ) {
 762                                 $blockSize = 0;
 763                                 wfWaitForSlaves( 5 );
 764                         }
 765                         $u = User::newFromName( $name, false );
 766                         // If user doesn't exist, it ought to be an IP then
 767                         if( is_null( $u ) || ( !$u->getId() && !IP::isIPAddress( $u->getName() ) ) ) {
 768                                 continue;
 769                         }
 770                         $userTitle = $u->getUserPage();
 771                         $userTalkTitle = $u->getTalkPage();
 772                         $userpage = new Article( $userTitle );
 773                         $usertalk = new Article( $userTalkTitle );
 774                         $safeUsers[] = '[[' . $userTitle->getPrefixedText() . '|' . $userTitle->getText() . ']]';
 775                         $expirestr = $u->getId() ? 'indefinite' : '1 week';
 776                         $expiry = Block::parseExpiryInput( $expirestr );
 777                         $anonOnly = IP::isIPAddress( $u->getName() ) ? 1 : 0;
 778                         // Create the block
 779                         $block = new Block( $u->getName(), // victim
 780                                 $u->getId(), // uid
 781                                 $wgUser->getId(), // blocker
 782                                 $reason, // comment
 783                                 wfTimestampNow(), // block time
 784                                 0, // auto ?
 785                                 $expiry, // duration
 786                                 $anonOnly, // anononly?
 787                                 1, // block account creation?
 788                                 1, // autoblocking?
 789                                 0, // suppress name?
 790                                 0 // block from sending email?
 791                         );
 792                         $oldblock = Block::newFromDB( $u->getName(), $u->getId() );
 793                         if( !$oldblock ) {
 794                                 $block->insert();
 795                                 # Prepare log parameters
 796                                 $logParams = array();
 797                                 $logParams[] = $expirestr;
 798                                 if( $anonOnly ) {
 799                                         $logParams[] = 'anononly';
 800                                 }
 801                                 $logParams[] = 'nocreate';
 802                                 # Add log entry
 803                                 $log->addEntry( 'block', $userTitle, $reason, $logParams );
 804                         }
 805                         # Tag userpage! (check length to avoid mistakes)
 806                         if( strlen( $tag ) > 2 ) {
 807                                 $userpage->doEdit( $tag, $reason, EDIT_MINOR );
 808                         }
 809                         if( strlen( $talkTag ) > 2 ) {
 810                                 $usertalk->doEdit( $talkTag, $reason, EDIT_MINOR );
 811                         }
 812                 }
 813                 return $safeUsers;
 814         }
 815 }