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, $wgSysopEmailBans, $wgEnableUserEmail;
  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( $wgEnableUserEmail && $wgSysopEmailBans && $wgUser->isAllowed( 'blockemail' ) ) {
  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                                         Xml::input( 'wpBlockAddress', 45, $this->BlockAddress,
 158                                                 array(
 159                                                         'tabindex' => '1',
 160                                                         'id' => 'mw-bi-target',
 161                                                         'onchange' => 'updateBlockOptions()' ) ). "
 162                                 </td>
 163                         </tr>
 164                         <tr>"
 165                 );
 166                 if( $showblockoptions ) {
 167                         $wgOut->addHTML("
 168                                 <td class='mw-label'>
 169                                         {$mIpbexpiry}
 170                                 </td>
 171                                 <td class='mw-input'>" .
 172                                         Xml::tags( 'select',
 173                                                 array(
 174                                                         'id' => 'wpBlockExpiry',
 175                                                         'name' => 'wpBlockExpiry',
 176                                                         'onchange' => 'considerChangingExpiryFocus()',
 177                                                         'tabindex' => '2' ),
 178                                                 $blockExpiryFormOptions ) .
 179                                 "</td>"
 180                         );
 181                 }
 182                 $wgOut->addHTML("
 183                         </tr>
 184                         <tr id='wpBlockOther'>
 185                                 <td class='mw-label'>
 186                                         {$mIpbother}
 187                                 </td>
 188                                 <td class='mw-input'>" .
 189                                         Xml::input( 'wpBlockOther', 45, $this->BlockOther,
 190                                                 array( 'tabindex' => '3', 'id' => 'mw-bi-other' ) ) . "
 191                                 </td>
 192                         </tr>
 193                         <tr>
 194                                 <td class='mw-label'>
 195                                         {$mIpbreasonother}
 196                                 </td>
 197                                 <td class='mw-input'>
 198                                         {$reasonDropDown}
 199                                 </td>
 200                         </tr>
 201                         <tr id=\"wpBlockReason\">
 202                                 <td class='mw-label'>
 203                                         {$mIpbreason}
 204                                 </td>
 205                                 <td class='mw-input'>" .
 206                                         Xml::input( 'wpBlockReason', 45, $this->BlockReason,
 207                                                 array( 'tabindex' => '5', 'id' => 'mw-bi-reason', 'maxlength'=> '200' ) ) . "
 208                                 </td>
 209                         </tr>
 210                         <tr id='wpAnonOnlyRow'>
 211                                 <td>&nbsp;</td>
 212                                 <td class='mw-input'>" .
 213                                 Xml::checkLabel( wfMsg( 'ipbanononly' ),
 214                                                 'wpAnonOnly', 'wpAnonOnly', $this->BlockAnonOnly,
 215                                                 array( 'tabindex' => '6' ) ) . "
 216                                 </td>
 217                         </tr>
 218                         <tr id='wpCreateAccountRow'>
 219                                 <td>&nbsp;</td>
 220                                 <td class='mw-input'>" .
 221                                         Xml::checkLabel( wfMsg( 'ipbcreateaccount' ),
 222                                                 'wpCreateAccount', 'wpCreateAccount', $this->BlockCreateAccount,
 223                                                 array( 'tabindex' => '7' ) ) . "
 224                                 </td>
 225                         </tr>
 226                         <tr id='wpEnableAutoblockRow'>
 227                                 <td>&nbsp;</td>
 228                                 <td class='mw-input'>" .
 229                                         Xml::checkLabel( wfMsg( 'ipbenableautoblock' ),
 230                                                 'wpEnableAutoblock', 'wpEnableAutoblock', $this->BlockEnableAutoblock,
 231                                                 array( 'tabindex' => '8' ) ) . "
 232                                 </td>
 233                         </tr>"
 234                 );
 235
 236                 global $wgSysopEmailBans, $wgBlockAllowsUTEdit, $wgEnableUserEmail;
 237                 if( $wgEnableUserEmail && $wgSysopEmailBans && $wgUser->isAllowed( 'blockemail' ) ) {
 238                         $wgOut->addHTML("
 239                                 <tr id='wpEnableEmailBan'>
 240                                         <td>&nbsp;</td>
 241                                         <td class='mw-input'>" .
 242                                                 Xml::checkLabel( wfMsg( 'ipbemailban' ),
 243                                                         'wpEmailBan', 'wpEmailBan', $this->BlockEmail,
 244                                                         array( 'tabindex' => '9' )) . "
 245                                         </td>
 246                                 </tr>"
 247                         );
 248                 }
 249
 250                 // Allow some users to hide name from block log, blocklist and listusers
 251                 if( $wgUser->isAllowed( 'hideuser' ) ) {
 252                         $wgOut->addHTML("
 253                                 <tr id='wpEnableHideUser'>
 254                                         <td>&nbsp;</td>
 255                                         <td class='mw-input'><strong>" .
 256                                                 Xml::checkLabel( wfMsg( 'ipbhidename' ),
 257                                                         'wpHideName', 'wpHideName', $this->BlockHideName,
 258                                                         array( 'tabindex' => '10' ) ) . "
 259                                         </strong></td>
 260                                 </tr>"
 261                         );
 262                 }
 263
 264                 # Watchlist their user page?
 265                 $wgOut->addHTML("
 266                         <tr id='wpEnableWatchUser'>
 267                                 <td>&nbsp;</td>
 268                                 <td class='mw-input'>" .
 269                                         Xml::checkLabel( wfMsg( 'ipbwatchuser' ),
 270                                                 'wpWatchUser', 'wpWatchUser', $this->BlockWatchUser,
 271                                                 array( 'tabindex' => '11' ) ) . "
 272                                 </td>
 273                         </tr>"
 274                 );
 275                 if( $wgBlockAllowsUTEdit ){
 276                         $wgOut->addHTML("
 277                                 <tr id='wpAllowUsertalkRow'>
 278                                         <td>&nbsp;</td>
 279                                         <td class='mw-input'>" .
 280                                                 Xml::checkLabel( wfMsg( 'ipballowusertalk' ),
 281                                                         'wpAllowUsertalk', 'wpAllowUsertalk', $this->BlockAllowUsertalk,
 282                                                         array( 'tabindex' => '12' ) ) . "
 283                                         </td>
 284                                 </tr>"
 285                         );
 286                 }
 287
 288                 $wgOut->addHTML("
 289                         <tr>
 290                                 <td style='padding-top: 1em'>&nbsp;</td>
 291                                 <td  class='mw-submit' style='padding-top: 1em'>" .
 292                                         Xml::submitButton( wfMsg( $alreadyBlocked ? 'ipb-change-block' : 'ipbsubmit' ),
 293                                                 array( 'name' => 'wpBlock', 'tabindex' => '13', 'accesskey' => 's' ) ) . "
 294                                 </td>
 295                         </tr>" .
 296                         Xml::closeElement( 'table' ) .
 297                         Xml::hidden( 'wpEditToken', $wgUser->editToken() ) .
 298                         ( $alreadyBlocked ? Xml::hidden( 'wpChangeBlock', 1 ) : "" ) .
 299                         Xml::closeElement( 'fieldset' ) .
 300                         Xml::closeElement( 'form' ) .
 301                         Xml::tags( 'script', array( 'type' => 'text/javascript' ), 'updateBlockOptions()' ) . "\n"
 302                 );
 303
 304                 $wgOut->addHTML( $this->getConvenienceLinks() );
 305
 306                 if( is_object( $user ) ) {
 307                         $this->showLogFragment( $wgOut, $user->getUserPage() );
 308                 } elseif( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/', $this->BlockAddress ) ) {
 309                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 310                 } 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 ) ) {
 311                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 312                 }
 313         }
 314
 315         /**
 316          * Backend block code.
 317          * $userID and $expiry will be filled accordingly
 318          * @return array(message key, arguments) on failure, empty array on success
 319          */
 320         function doBlock( &$userId = null, &$expiry = null ) {
 321                 global $wgUser, $wgSysopUserBans, $wgSysopRangeBans, $wgBlockAllowsUTEdit;
 322
 323                 $userId = 0;
 324                 # Expand valid IPv6 addresses, usernames are left as is
 325                 $this->BlockAddress = IP::sanitizeIP( $this->BlockAddress );
 326                 # isIPv4() and IPv6() are used for final validation
 327                 $rxIP4 = '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}';
 328                 $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}';
 329                 $rxIP = "($rxIP4|$rxIP6)";
 330
 331                 # Check for invalid specifications
 332                 if( !preg_match( "/^$rxIP$/", $this->BlockAddress ) ) {
 333                         $matches = array();
 334                         if( preg_match( "/^($rxIP4)\\/(\\d{1,2})$/", $this->BlockAddress, $matches ) ) {
 335                                 # IPv4
 336                                 if( $wgSysopRangeBans ) {
 337                                         if( !IP::isIPv4( $this->BlockAddress ) || $matches[2] < 16 || $matches[2] > 32 ) {
 338                                                 return array('ip_range_invalid');
 339                                         }
 340                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 341                                 } else {
 342                                         # Range block illegal
 343                                         return array('range_block_disabled');
 344                                 }
 345                         } else if( preg_match( "/^($rxIP6)\\/(\\d{1,3})$/", $this->BlockAddress, $matches ) ) {
 346                                 # IPv6
 347                                 if( $wgSysopRangeBans ) {
 348                                         if( !IP::isIPv6( $this->BlockAddress ) || $matches[2] < 64 || $matches[2] > 128 ) {
 349                                                 return array('ip_range_invalid');
 350                                         }
 351                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 352                                 } else {
 353                                         # Range block illegal
 354                                         return array('range_block_disabled');
 355                                 }
 356                         } else {
 357                                 # Username block
 358                                 if( $wgSysopUserBans ) {
 359                                         $user = User::newFromName( $this->BlockAddress );
 360                                         if( !is_null( $user ) && $user->getId() ) {
 361                                                 # Use canonical name
 362                                                 $userId = $user->getId();
 363                                                 $this->BlockAddress = $user->getName();
 364                                         } else {
 365                                                 return array('nosuchusershort', htmlspecialchars( $user ? $user->getName() : $this->BlockAddress ) );
 366                                         }
 367                                 } else {
 368                                         return array('badipaddress');
 369                                 }
 370                         }
 371                 }
 372
 373                 if( $wgUser->isBlocked() && ( $wgUser->getId() !== $userId ) ) {
 374                         return array( 'cant-block-while-blocked' );
 375                 }
 376
 377                 $reasonstr = $this->BlockReasonList;
 378                 if( $reasonstr != 'other' && $this->BlockReason != '' ) {
 379                         // Entry from drop down menu + additional comment
 380                         $reasonstr .= wfMsgForContent( 'colon-separator' ) . $this->BlockReason;
 381                 } elseif( $reasonstr == 'other' ) {
 382                         $reasonstr = $this->BlockReason;
 383                 }
 384
 385                 $expirestr = $this->BlockExpiry;
 386                 if( $expirestr == 'other' )
 387                         $expirestr = $this->BlockOther;
 388
 389                 if( ( strlen( $expirestr ) == 0) || ( strlen( $expirestr ) > 50) ) {
 390                         return array('ipb_expiry_invalid');
 391                 }
 392
 393                 if( false === ($expiry = Block::parseExpiryInput( $expirestr )) ) {
 394                         // Bad expiry.
 395                         return array('ipb_expiry_invalid');
 396                 }
 397
 398                 if( $this->BlockHideName ) {
 399                         // Recheck params here...
 400                         if( !$userId || !$wgUser->isAllowed('hideuser') ) {
 401                                 $this->BlockHideName = false; // IP users should not be hidden
 402                         } else if( $expiry !== 'infinity' ) {
 403                                 // Bad expiry.
 404                                 return array('ipb_expiry_temp');
 405                         } else if( User::edits($userId) > self::HIDEUSER_CONTRIBLIMIT ) {
 406                                 // Typically, the user should have a handful of edits.
 407                                 // Disallow hiding users with many edits for performance.
 408                                 return array('ipb_hide_invalid');
 409                         }
 410                 }
 411
 412                 # Create block object
 413                 # Note: for a user block, ipb_address is only for display purposes
 414                 $block = new Block( $this->BlockAddress, $userId, $wgUser->getId(),
 415                         $reasonstr, wfTimestampNow(), 0, $expiry, $this->BlockAnonOnly,
 416                         $this->BlockCreateAccount, $this->BlockEnableAutoblock, $this->BlockHideName,
 417                         $this->BlockEmail, isset( $this->BlockAllowUsertalk ) ? $this->BlockAllowUsertalk : $wgBlockAllowsUTEdit
 418                 );
 419
 420                 # Should this be privately logged?
 421                 $suppressLog = (bool)$this->BlockHideName;
 422                 if( wfRunHooks('BlockIp', array(&$block, &$wgUser)) ) {
 423                         # Try to insert block. Is there a conflicting block?
 424                         if( !$block->insert() ) {
 425                                 # Show form unless the user is already aware of this...
 426                                 if( !$this->BlockReblock ) {
 427                                         return array( 'ipb_already_blocked' );
 428                                 # Otherwise, try to update the block...
 429                                 } else {
 430                                         # This returns direct blocks before autoblocks/rangeblocks, since we should
 431                                         # be sure the user is blocked by now it should work for our purposes
 432                                         $currentBlock = Block::newFromDB( $this->BlockAddress, $userId );
 433                                         if( $block->equals( $currentBlock ) ) {
 434                                                 return array( 'ipb_already_blocked' );
 435                                         }
 436                                         # If the name was hidden and the blocking user cannot hide
 437                                         # names, then don't allow any block changes...
 438                                         if( $currentBlock->mHideName && !$wgUser->isAllowed('hideuser') ) {
 439                                                 return array( 'hookaborted' );
 440                                         }
 441                                         $currentBlock->delete();
 442                                         $block->insert();
 443                                         # If hiding/unhiding a name, this should go in the private logs
 444                                         $suppressLog = $suppressLog || (bool)$currentBlock->mHideName;
 445                                         $log_action = 'reblock';
 446                                         # Unset _deleted fields if requested
 447                                         if( $currentBlock->mHideName && !$this->BlockHideName ) {
 448                                                 self::unsuppressUserName( $this->BlockAddress, $userId );
 449                                         }
 450                                 }
 451                         } else {
 452                                 $log_action = 'block';
 453                         }
 454                         wfRunHooks('BlockIpComplete', array($block, $wgUser));
 455
 456                         # Set *_deleted fields if requested
 457                         if( $this->BlockHideName ) {
 458                                 self::suppressUserName( $this->BlockAddress, $userId, $reasonstr );
 459                         }
 460
 461                         # Only show watch link when this is no range block
 462                         if( $this->BlockWatchUser && $block->mRangeStart == $block->mRangeEnd ) {
 463                                 $wgUser->addWatch( Title::makeTitle( NS_USER, $this->BlockAddress ) );
 464                         }
 465
 466                         # Block constructor sanitizes certain block options on insert
 467                         $this->BlockEmail = $block->mBlockEmail;
 468                         $this->BlockEnableAutoblock = $block->mEnableAutoblock;
 469
 470                         # Prepare log parameters
 471                         $logParams = array();
 472                         $logParams[] = $expirestr;
 473                         $logParams[] = $this->blockLogFlags();
 474
 475                         # Make log entry, if the name is hidden, put it in the oversight log
 476                         $log_type = $suppressLog ? 'suppress' : 'block';
 477                         $log = new LogPage( $log_type );
 478                         $log->addEntry( $log_action, Title::makeTitle( NS_USER, $this->BlockAddress ),
 479                                 $reasonstr, $logParams );
 480
 481                         # Report to the user
 482                         return array();
 483                 } else {
 484                         return array('hookaborted');
 485                 }
 486         }
 487
 488         public static function suppressUserName( $name, $userId, $reason = '' ) {
 489                 $user = User::newFromName( $name, false );
 490                 # Delete the user pages that exists
 491                 $title = $user->getUserPage();
 492                 if( ($id = $title->getArticleID(GAID_FOR_UPDATE)) ) {
 493                         $article = new Article( $title );
 494                         $article->doDeleteArticle( $reason, true /*suppress*/, $id );
 495                 }
 496                 # Delete the user talk pages that exists
 497                 $title = $user->getTalkPage();
 498                 if( $id = $title->getArticleID(GAID_FOR_UPDATE) ) {
 499                         $article = new Article( $title );
 500                         $article->doDeleteArticle( $reason, true /*suppress*/, $id );
 501                 }
 502                 $op = '|'; // bitwise OR
 503                 return self::setUsernameBitfields( $name, $userId, $op );
 504         }
 505
 506         public static function unsuppressUserName( $name, $userId ) {
 507                 $op = '&'; // bitwise AND
 508                 return self::setUsernameBitfields( $name, $userId, $op );
 509         }
 510
 511         private static function setUsernameBitfields( $name, $userId, $op ) {
 512                 if( $op !== '|' && $op !== '&' ) return false; // sanity check
 513                 $dbw = wfGetDB( DB_MASTER );
 514                 $delUser = Revision::DELETED_USER | Revision::DELETED_RESTRICTED;
 515                 $delAction = LogPage::DELETED_ACTION | Revision::DELETED_RESTRICTED;
 516                 # Normalize user name
 517                 $userTitle = Title::makeTitleSafe( NS_USER, $name );
 518                 $userDbKey = $userTitle->getDBKey();
 519                 # To suppress, we OR the current bitfields with Revision::DELETED_USER
 520                 # to put a 1 in the username *_deleted bit. To unsuppress we AND the
 521                 # current bitfields with the inverse of Revision::DELETED_USER. The
 522                 # username bit is made to 0 (x & 0 = 0), while others are unchanged (x & 1 = x).
 523                 # The same goes for the sysop-restricted *_deleted bit.
 524                 if( $op == '&' ) {
 525                         $delUser = "~{$delUser}";
 526                         $delAction = "~{$delAction}";
 527                 }
 528                 # Hide name from live edits
 529                 $dbw->update( 'revision', array("rev_deleted = rev_deleted $op $delUser"),
 530                         array('rev_user' => $userId), __METHOD__ );
 531                 # Hide name from deleted edits
 532                 $dbw->update( 'archive', array("ar_deleted = ar_deleted $op $delUser"),
 533                         array('ar_user_text' => $name), __METHOD__ );
 534                 # Hide name from logs
 535                 $dbw->update( 'logging', array("log_deleted = log_deleted $op $delUser"),
 536                         array('log_user' => $userId, "log_type != 'suppress'"), __METHOD__ );
 537                 $dbw->update( 'logging', array("log_deleted = log_deleted $op $delAction"),
 538                         array('log_namespace' => NS_USER, 'log_title' => $userDbKey,
 539                                 "log_type != 'suppress'"), __METHOD__ );
 540                 # Hide name from RC
 541                 $dbw->update( 'recentchanges', array("rc_deleted = rc_deleted $op $delUser"),
 542                         array('rc_user_text' => $name), __METHOD__ );
 543                 $dbw->update( 'recentchanges', array("rc_deleted = rc_deleted $op $delAction"),
 544                         array('rc_namespace' => NS_USER, 'rc_title' => $userDbKey, 'rc_logid > 0'), __METHOD__ );
 545                 # Hide name from live images
 546                 $dbw->update( 'oldimage', array("oi_deleted = oi_deleted $op $delUser"),
 547                         array('oi_user_text' => $name), __METHOD__ );
 548                 # Hide name from deleted images
 549                 # WMF - schema change pending
 550                 # $dbw->update( 'filearchive', array("fa_deleted = fa_deleted $op $delUser"),
 551                 #       array('fa_user_text' => $name), __METHOD__ );
 552                 # Done!
 553                 return true;
 554         }
 555
 556         /**
 557          * UI entry point for blocking
 558          * Wraps around doBlock()
 559          */
 560         public function doSubmit() {
 561                 global $wgOut;
 562                 $retval = $this->doBlock();
 563                 if( empty($retval) ) {
 564                         $titleObj = SpecialPage::getTitleFor( 'Blockip' );
 565                         $wgOut->redirect( $titleObj->getFullURL( 'action=success&ip=' .
 566                                 urlencode( $this->BlockAddress ) ) );
 567                         return;
 568                 }
 569                 $this->showForm( $retval );
 570         }
 571
 572         public function showSuccess() {
 573                 global $wgOut;
 574
 575                 $wgOut->setPagetitle( wfMsg( 'blockip' ) );
 576                 $wgOut->setSubtitle( wfMsg( 'blockipsuccesssub' ) );
 577                 $text = wfMsgExt( 'blockipsuccesstext', array( 'parse' ), $this->BlockAddress );
 578                 $wgOut->addHTML( $text );
 579         }
 580
 581         private function showLogFragment( $out, $title ) {
 582                 global $wgUser;
 583                 $out->addHTML( Xml::element( 'h2', NULL, LogPage::logName( 'block' ) ) );
 584                 $count = LogEventsList::showLogExtract( $out, 'block', $title->getPrefixedText(), '', 10 );
 585                 if( $count > 10 ) {
 586                         $out->addHTML( $wgUser->getSkin()->link(
 587                                 SpecialPage::getTitleFor( 'Log' ),
 588                                 wfMsgHtml( 'blocklog-fulllog' ),
 589                                 array(),
 590                                 array(
 591                                         'type' => 'block',
 592                                         'page' => $title->getPrefixedText() ) ) );
 593                 }
 594                 // Add suppression block entries if allowed
 595                 if( $wgUser->isAllowed('hideuser') ) {
 596                         $out->addHTML( Xml::element( 'h2', NULL, LogPage::logName( 'suppress' ) ) );
 597                         LogEventsList::showLogExtract( $out, 'suppress', $title->getPrefixedText(), '',
 598                                 10, array('log_action' => array('block','reblock','unblock')) );
 599                 }
 600         }
 601
 602         /**
 603          * Return a comma-delimited list of "flags" to be passed to the log
 604          * reader for this block, to provide more information in the logs
 605          *
 606          * @return array
 607          */
 608         private function blockLogFlags() {
 609                 global $wgBlockAllowsUTEdit;
 610                 $flags = array();
 611                 if( $this->BlockAnonOnly && IP::isIPAddress( $this->BlockAddress ) )
 612                         // when blocking a user the option 'anononly' is not available/has no effect -> do not write this into log
 613                         $flags[] = 'anononly';
 614                 if( $this->BlockCreateAccount )
 615                         $flags[] = 'nocreate';
 616                 if( !$this->BlockEnableAutoblock && !IP::isIPAddress( $this->BlockAddress ) )
 617                         // Same as anononly, this is not displayed when blocking an IP address
 618                         $flags[] = 'noautoblock';
 619                 if( $this->BlockEmail )
 620                         $flags[] = 'noemail';
 621                 if( !$this->BlockAllowUsertalk && $wgBlockAllowsUTEdit )
 622                         $flags[] = 'nousertalk';
 623                 if( $this->BlockHideName )
 624                         $flags[] = 'hiddenname';
 625                 return implode( ',', $flags );
 626         }
 627
 628         /**
 629          * Builds unblock and block list links
 630          *
 631          * @return string
 632          */
 633         private function getConvenienceLinks() {
 634                 global $wgUser, $wgLang;
 635                 $skin = $wgUser->getSkin();
 636                 if( $this->BlockAddress )
 637                         $links[] = $this->getContribsLink( $skin );
 638                 $links[] = $this->getUnblockLink( $skin );
 639                 $links[] = $this->getBlockListLink( $skin );
 640                 $links[] = $skin->makeLink ( 'MediaWiki:Ipbreason-dropdown', wfMsgHtml( 'ipb-edit-dropdown' ) );
 641                 return '<p class="mw-ipb-conveniencelinks">' . $wgLang->pipeList( $links ) . '</p>';
 642         }
 643
 644         /**
 645          * Build a convenient link to a user or IP's contribs
 646          * form
 647          *
 648          * @param $skin Skin to use
 649          * @return string
 650          */
 651         private function getContribsLink( $skin ) {
 652                 $contribsPage = SpecialPage::getTitleFor( 'Contributions', $this->BlockAddress );
 653                 return $skin->link( $contribsPage, wfMsgHtml( 'ipb-blocklist-contribs', $this->BlockAddress ) );
 654         }
 655
 656         /**
 657          * Build a convenient link to unblock the given username or IP
 658          * address, if available; otherwise link to a blank unblock
 659          * form
 660          *
 661          * @param $skin Skin to use
 662          * @return string
 663          */
 664         private function getUnblockLink( $skin ) {
 665                 $list = SpecialPage::getTitleFor( 'Ipblocklist' );
 666                 if( $this->BlockAddress ) {
 667                         $addr = htmlspecialchars( strtr( $this->BlockAddress, '_', ' ' ) );
 668                         return $skin->makeKnownLinkObj( $list, wfMsgHtml( 'ipb-unblock-addr', $addr ),
 669                                 'action=unblock&ip=' . urlencode( $this->BlockAddress ) );
 670                 } else {
 671                         return $skin->makeKnownLinkObj( $list, wfMsgHtml( 'ipb-unblock' ),      'action=unblock' );
 672                 }
 673         }
 674
 675         /**
 676          * Build a convenience link to the block list
 677          *
 678          * @param $skin Skin to use
 679          * @return string
 680          */
 681         private function getBlockListLink( $skin ) {
 682                 $list = SpecialPage::getTitleFor( 'Ipblocklist' );
 683                 if( $this->BlockAddress ) {
 684                         $addr = htmlspecialchars( strtr( $this->BlockAddress, '_', ' ' ) );
 685                         return $skin->makeKnownLinkObj( $list, wfMsgHtml( 'ipb-blocklist-addr', $addr ),
 686                                 'ip=' . urlencode( $this->BlockAddress ) );
 687                 } else {
 688                         return $skin->makeKnownLinkObj( $list, wfMsgHtml( 'ipb-blocklist' ) );
 689                 }
 690         }
 691
 692         /**
 693         * Block a list of selected users
 694         * @param array $users
 695         * @param string $reason
 696         * @param string $tag replaces user pages
 697         * @param string $talkTag replaces user talk pages
 698         * @returns array, list of html-safe usernames
 699         */
 700         public static function doMassUserBlock( $users, $reason = '', $tag = '', $talkTag = '' ) {
 701                 global $wgUser;
 702                 $counter = $blockSize = 0;
 703                 $safeUsers = array();
 704                 $log = new LogPage( 'block' );
 705                 foreach( $users as $name ) {
 706                         # Enforce limits
 707                         $counter++;
 708                         $blockSize++;
 709                         # Lets not go *too* fast
 710                         if( $blockSize >= 20 ) {
 711                                 $blockSize = 0;
 712                                 wfWaitForSlaves( 5 );
 713                         }
 714                         $u = User::newFromName( $name, false );
 715                         // If user doesn't exist, it ought to be an IP then
 716                         if( is_null($u) || (!$u->getId() && !IP::isIPAddress( $u->getName() )) ) {
 717                                 continue;
 718                         }
 719                         $userTitle = $u->getUserPage();
 720                         $userTalkTitle = $u->getTalkPage();
 721                         $userpage = new Article( $userTitle );
 722                         $usertalk = new Article( $userTalkTitle );
 723                         $safeUsers[] = '[[' . $userTitle->getPrefixedText() . '|' . $userTitle->getText() . ']]';
 724                         $expirestr = $u->getId() ? 'indefinite' : '1 week';
 725                         $expiry = Block::parseExpiryInput( $expirestr );
 726                         $anonOnly = IP::isIPAddress( $u->getName() ) ? 1 : 0;
 727                         // Create the block
 728                         $block = new Block( $u->getName(), // victim
 729                                 $u->getId(), // uid
 730                                 $wgUser->getId(), // blocker
 731                                 $reason, // comment
 732                                 wfTimestampNow(), // block time
 733                                 0, // auto ?
 734                                 $expiry, // duration
 735                                 $anonOnly, // anononly?
 736                                 1, // block account creation?
 737                                 1, // autoblocking?
 738                                 0, // suppress name?
 739                                 0 // block from sending email?
 740                         );
 741                         $oldblock = Block::newFromDB( $u->getName(), $u->getId() );
 742                         if( !$oldblock ) {
 743                                 $block->insert();
 744                                 # Prepare log parameters
 745                                 $logParams = array();
 746                                 $logParams[] = $expirestr;
 747                                 if( $anonOnly ) {
 748                                         $logParams[] = 'anononly';
 749                                 }
 750                                 $logParams[] = 'nocreate';
 751                                 # Add log entry
 752                                 $log->addEntry( 'block', $userTitle, $reason, $logParams );
 753                         }
 754                         # Tag userpage! (check length to avoid mistakes)
 755                         if( strlen($tag) > 2 ) {
 756                                 $userpage->doEdit( $tag, $reason, EDIT_MINOR );
 757                         }
 758                         if( strlen($talkTag) > 2 ) {
 759                                 $usertalk->doEdit( $talkTag, $reason, EDIT_MINOR );
 760                         }
 761                 }
 762                 return $safeUsers;
 763         }
 764 }