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 null
  71                 if( $wgUser->isAllowed( 'hideuser' ) ) {
  72                         $this->BlockHideName = $wgRequest->getBool( 'wpHideName', null );
  73                 } else {
  74                         $this->BlockHideName = false;
  75                 }
  76                 $this->BlockAllowUsertalk = ( $wgRequest->getBool( 'wpAllowUsertalk', $byDefault ) && $wgBlockAllowsUTEdit );
  77                 $this->BlockReblock = $wgRequest->getBool( 'wpChangeBlock', false );
  78
  79                 $this->wasPosted = $wgRequest->wasPosted();
  80         }
  81
  82         public function showForm( $err ) {
  83                 global $wgOut, $wgUser, $wgSysopUserBans;
  84
  85                 $wgOut->setPageTitle( wfMsg( 'blockip' ) );
  86                 $wgOut->addWikiMsg( 'blockiptext' );
  87
  88                 if( $wgSysopUserBans ) {
  89                         $mIpaddress = Xml::label( wfMsg( 'ipadressorusername' ), 'mw-bi-target' );
  90                 } else {
  91                         $mIpaddress = Xml::label( wfMsg( 'ipaddress' ), 'mw-bi-target' );
  92                 }
  93                 $mIpbexpiry = Xml::label( wfMsg( 'ipbexpiry' ), 'wpBlockExpiry' );
  94                 $mIpbother = Xml::label( wfMsg( 'ipbother' ), 'mw-bi-other' );
  95                 $mIpbreasonother = Xml::label( wfMsg( 'ipbreason' ), 'wpBlockReasonList' );
  96                 $mIpbreason = Xml::label( wfMsg( 'ipbotherreason' ), 'mw-bi-reason' );
  97
  98                 $titleObj = SpecialPage::getTitleFor( 'Blockip' );
  99                 $user = User::newFromName( $this->BlockAddress );
 100
 101                 $alreadyBlocked = false;
 102                 if( $err && $err[0] != 'ipb_already_blocked' ) {
 103                         $key = array_shift( $err );
 104                         $msg = wfMsgReal( $key, $err );
 105                         $wgOut->setSubtitle( wfMsgHtml( 'formerror' ) );
 106                         $wgOut->addHTML( Xml::tags( 'p', array( 'class' => 'error' ), $msg ) );
 107                 } elseif( $this->BlockAddress ) {
 108                         # Get other blocks, i.e. from GlobalBlocking or TorBlock extension
 109                         wfRunHooks( 'getOtherBlockLogLink', array( &$otherBlockedMsgs, $this->BlockAddress ) );
 110
 111                         $userId = is_object( $user ) ? $user->getId() : 0;
 112                         $currentBlock = Block::newFromDB( $this->BlockAddress, $userId );
 113                         if( !is_null( $currentBlock ) && !$currentBlock->mAuto && # The block exists and isn't an autoblock
 114                                 ( $currentBlock->mRangeStart == $currentBlock->mRangeEnd || # The block isn't a rangeblock
 115                                 # or if it is, the range is what we're about to block
 116                                 ( $currentBlock->mAddress == $this->BlockAddress ) )
 117                         ) {
 118                                 $alreadyBlocked = true;
 119                                 # Set the block form settings to the existing block
 120                                 if( !$this->wasPosted ) {
 121                                         $this->BlockAnonOnly = $currentBlock->mAnonOnly;
 122                                         $this->BlockCreateAccount = $currentBlock->mCreateAccount;
 123                                         $this->BlockEnableAutoblock = $currentBlock->mEnableAutoblock;
 124                                         $this->BlockEmail = $currentBlock->mBlockEmail;
 125                                         $this->BlockHideName = $currentBlock->mHideName;
 126                                         $this->BlockAllowUsertalk = $currentBlock->mAllowUsertalk;
 127                                         if( $currentBlock->mExpiry == 'infinity' ) {
 128                                                 $this->BlockOther = 'indefinite';
 129                                         } else {
 130                                                 $this->BlockOther = wfTimestamp( TS_ISO_8601, $currentBlock->mExpiry );
 131                                         }
 132                                         $this->BlockReason = $currentBlock->mReason;
 133                                 }
 134                         }
 135                 }
 136
 137                 # Show other blocks from extensions, i.e. GlockBlocking and TorBlock
 138                 if( count( $otherBlockedMsgs ) ) {
 139                         $wgOut->addHTML(
 140                                 Html::rawElement( 'h2', array(), wfMsgExt( 'ipb-otherblocks-header', 'parseinline',  count( $otherBlockedMsgs ) ) ) . "\n"
 141                         );
 142                         $list = '';
 143                         foreach( $otherBlockedMsgs as $link ) {
 144                                 $list .= Html::rawElement( 'li', array(), $link ) . "\n";
 145                         }
 146                         $wgOut->addHTML( Html::rawElement( 'ul', array( 'class' => 'mw-blockip-alreadyblocked' ), $list ) . "\n" );
 147                 }
 148
 149                 # Username/IP is blocked already locally
 150                 if( $alreadyBlocked ) {
 151                         $wgOut->addWikiMsg( 'ipb-needreblock', $this->BlockAddress );
 152                 }
 153
 154                 $scBlockExpiryOptions = wfMsgForContent( 'ipboptions' );
 155
 156                 $showblockoptions = $scBlockExpiryOptions != '-';
 157                 if( !$showblockoptions ) $mIpbother = $mIpbexpiry;
 158
 159                 $blockExpiryFormOptions = Xml::option( wfMsg( 'ipbotheroption' ), 'other' );
 160                 foreach( explode( ',', $scBlockExpiryOptions ) as $option ) {
 161                         if( strpos( $option, ':' ) === false ) $option = "$option:$option";
 162                         list( $show, $value ) = explode( ':', $option );
 163                         $show = htmlspecialchars( $show );
 164                         $value = htmlspecialchars( $value );
 165                         $blockExpiryFormOptions .= Xml::option( $show, $value, $this->BlockExpiry === $value ? true : false ) . "\n";
 166                 }
 167
 168                 $reasonDropDown = Xml::listDropDown( 'wpBlockReasonList',
 169                         wfMsgForContent( 'ipbreason-dropdown' ),
 170                         wfMsgForContent( 'ipbreasonotherlist' ), $this->BlockReasonList, 'wpBlockDropDown', 4 );
 171
 172                 global $wgStylePath, $wgStyleVersion;
 173                 $wgOut->addHTML(
 174                         Xml::tags( 'script', array( 'type' => 'text/javascript', 'src' => "$wgStylePath/common/block.js?$wgStyleVersion" ), '' ) .
 175                         Xml::openElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalURL( 'action=submit' ), 'id' => 'blockip' ) ) .
 176                         Xml::openElement( 'fieldset' ) .
 177                         Xml::element( 'legend', null, wfMsg( 'blockip-legend' ) ) .
 178                         Xml::openElement( 'table', array( 'border' => '0', 'id' => 'mw-blockip-table' ) ) .
 179                         "<tr>
 180                                 <td class='mw-label'>
 181                                         {$mIpaddress}
 182                                 </td>
 183                                 <td class='mw-input'>" .
 184                                         Html::input( 'wpBlockAddress', $this->BlockAddress, 'text', array(
 185                                                 'tabindex' => '1',
 186                                                 'id' => 'mw-bi-target',
 187                                                 'onchange' => 'updateBlockOptions()',
 188                                                 'size' => '45',
 189                                                 'required' => ''
 190                                         ) + ( $this->BlockAddress ? array() : array( 'autofocus' ) ) ). "
 191                                 </td>
 192                         </tr>
 193                         <tr>"
 194                 );
 195                 if( $showblockoptions ) {
 196                         $wgOut->addHTML("
 197                                 <td class='mw-label'>
 198                                         {$mIpbexpiry}
 199                                 </td>
 200                                 <td class='mw-input'>" .
 201                                         Xml::tags( 'select',
 202                                                 array(
 203                                                         'id' => 'wpBlockExpiry',
 204                                                         'name' => 'wpBlockExpiry',
 205                                                         'onchange' => 'considerChangingExpiryFocus()',
 206                                                         'tabindex' => '2' ),
 207                                                 $blockExpiryFormOptions ) .
 208                                 "</td>"
 209                         );
 210                 }
 211                 $wgOut->addHTML("
 212                         </tr>
 213                         <tr id='wpBlockOther'>
 214                                 <td class='mw-label'>
 215                                         {$mIpbother}
 216                                 </td>
 217                                 <td class='mw-input'>" .
 218                                         Xml::input( 'wpBlockOther', 45, $this->BlockOther,
 219                                                 array( 'tabindex' => '3', 'id' => 'mw-bi-other' ) ) . "
 220                                 </td>
 221                         </tr>
 222                         <tr>
 223                                 <td class='mw-label'>
 224                                         {$mIpbreasonother}
 225                                 </td>
 226                                 <td class='mw-input'>
 227                                         {$reasonDropDown}
 228                                 </td>
 229                         </tr>
 230                         <tr id=\"wpBlockReason\">
 231                                 <td class='mw-label'>
 232                                         {$mIpbreason}
 233                                 </td>
 234                                 <td class='mw-input'>" .
 235                                 Html::input( 'wpBlockReason', $this->BlockReason, 'text', array(
 236                                         'tabindex' => '5',
 237                                         'id' => 'mw-bi-reason',
 238                                         'maxlength' => '200',
 239                                         'size' => '45'
 240                                 ) + ( $this->BlockAddress ? array( 'autofocus' ) : array() ) ) . "
 241                                 </td>
 242                         </tr>
 243                         <tr id='wpAnonOnlyRow'>
 244                                 <td>&nbsp;</td>
 245                                 <td class='mw-input'>" .
 246                                 Xml::checkLabel( wfMsg( 'ipbanononly' ),
 247                                                 'wpAnonOnly', 'wpAnonOnly', $this->BlockAnonOnly,
 248                                                 array( 'tabindex' => '6' ) ) . "
 249                                 </td>
 250                         </tr>
 251                         <tr id='wpCreateAccountRow'>
 252                                 <td>&nbsp;</td>
 253                                 <td class='mw-input'>" .
 254                                         Xml::checkLabel( wfMsg( 'ipbcreateaccount' ),
 255                                                 'wpCreateAccount', 'wpCreateAccount', $this->BlockCreateAccount,
 256                                                 array( 'tabindex' => '7' ) ) . "
 257                                 </td>
 258                         </tr>
 259                         <tr id='wpEnableAutoblockRow'>
 260                                 <td>&nbsp;</td>
 261                                 <td class='mw-input'>" .
 262                                         Xml::checkLabel( wfMsg( 'ipbenableautoblock' ),
 263                                                 'wpEnableAutoblock', 'wpEnableAutoblock', $this->BlockEnableAutoblock,
 264                                                 array( 'tabindex' => '8' ) ) . "
 265                                 </td>
 266                         </tr>"
 267                 );
 268
 269                 if( self::canBlockEmail( $wgUser ) ) {
 270                         $wgOut->addHTML("
 271                                 <tr id='wpEnableEmailBan'>
 272                                         <td>&nbsp;</td>
 273                                         <td class='mw-input'>" .
 274                                                 Xml::checkLabel( wfMsg( 'ipbemailban' ),
 275                                                         'wpEmailBan', 'wpEmailBan', $this->BlockEmail,
 276                                                         array( 'tabindex' => '9' ) ) . "
 277                                         </td>
 278                                 </tr>"
 279                         );
 280                 }
 281
 282                 // Allow some users to hide name from block log, blocklist and listusers
 283                 if( $wgUser->isAllowed( 'hideuser' ) ) {
 284                         $wgOut->addHTML("
 285                                 <tr id='wpEnableHideUser'>
 286                                         <td>&nbsp;</td>
 287                                         <td class='mw-input'><strong>" .
 288                                                 Xml::checkLabel( wfMsg( 'ipbhidename' ),
 289                                                         'wpHideName', 'wpHideName', $this->BlockHideName,
 290                                                         array( 'tabindex' => '10' )
 291                                                 ) . "
 292                                         </strong></td>
 293                                 </tr>"
 294                         );
 295                 }
 296
 297                 # Watchlist their user page?
 298                 $wgOut->addHTML("
 299                         <tr id='wpEnableWatchUser'>
 300                                 <td>&nbsp;</td>
 301                                 <td class='mw-input'>" .
 302                                         Xml::checkLabel( wfMsg( 'ipbwatchuser' ),
 303                                                 'wpWatchUser', 'wpWatchUser', $this->BlockWatchUser,
 304                                                 array( 'tabindex' => '11' ) ) . "
 305                                 </td>
 306                         </tr>"
 307                 );
 308
 309                 # Can we explicitly disallow the use of user_talk?
 310                 global $wgBlockAllowsUTEdit;
 311                 if( $wgBlockAllowsUTEdit ){
 312                         $wgOut->addHTML("
 313                                 <tr id='wpAllowUsertalkRow'>
 314                                         <td>&nbsp;</td>
 315                                         <td class='mw-input'>" .
 316                                                 Xml::checkLabel( wfMsg( 'ipballowusertalk' ),
 317                                                         'wpAllowUsertalk', 'wpAllowUsertalk', $this->BlockAllowUsertalk,
 318                                                         array( 'tabindex' => '12' ) ) . "
 319                                         </td>
 320                                 </tr>"
 321                         );
 322                 }
 323
 324                 $wgOut->addHTML("
 325                         <tr>
 326                                 <td style='padding-top: 1em'>&nbsp;</td>
 327                                 <td  class='mw-submit' style='padding-top: 1em'>" .
 328                                         Xml::submitButton( wfMsg( $alreadyBlocked ? 'ipb-change-block' : 'ipbsubmit' ),
 329                                                 array( 'name' => 'wpBlock', 'tabindex' => '13', 'accesskey' => 's' ) ) . "
 330                                 </td>
 331                         </tr>" .
 332                         Xml::closeElement( 'table' ) .
 333                         Xml::hidden( 'wpEditToken', $wgUser->editToken() ) .
 334                         ( $alreadyBlocked ? Xml::hidden( 'wpChangeBlock', 1 ) : "" ) .
 335                         Xml::closeElement( 'fieldset' ) .
 336                         Xml::closeElement( 'form' ) .
 337                         Xml::tags( 'script', array( 'type' => 'text/javascript' ), 'updateBlockOptions()' ) . "\n"
 338                 );
 339
 340                 $wgOut->addHTML( $this->getConvenienceLinks() );
 341
 342                 if( is_object( $user ) ) {
 343                         $this->showLogFragment( $wgOut, $user->getUserPage() );
 344                 } elseif( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/', $this->BlockAddress ) ) {
 345                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 346                 } 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 ) ) {
 347                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 348                 }
 349         }
 350
 351         /**
 352          * Can we do an email block?
 353          * @param User $user The sysop wanting to make a block
 354          * @return boolean
 355          */
 356         public static function canBlockEmail( $user ) {
 357                 global $wgEnableUserEmail, $wgSysopEmailBans;
 358                 return ( $wgEnableUserEmail && $wgSysopEmailBans && $user->isAllowed( 'blockemail' ) );
 359         }
 360
 361         /**
 362          * Backend block code.
 363          * $userID and $expiry will be filled accordingly
 364          * @return array(message key, arguments) on failure, empty array on success
 365          */
 366         function doBlock( &$userId = null, &$expiry = null ) {
 367                 global $wgUser, $wgSysopUserBans, $wgSysopRangeBans, $wgBlockAllowsUTEdit, $wgBlockCIDRLimit;
 368
 369                 $userId = 0;
 370                 # Expand valid IPv6 addresses, usernames are left as is
 371                 $this->BlockAddress = IP::sanitizeIP( $this->BlockAddress );
 372                 # isIPv4() and IPv6() are used for final validation
 373                 $rxIP4 = '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}';
 374                 $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}';
 375                 $rxIP = "($rxIP4|$rxIP6)";
 376
 377                 # Check for invalid specifications
 378                 if( !preg_match( "/^$rxIP$/", $this->BlockAddress ) ) {
 379                         $matches = array();
 380                         if( preg_match( "/^($rxIP4)\\/(\\d{1,2})$/", $this->BlockAddress, $matches ) ) {
 381                                 # IPv4
 382                                 if( $wgSysopRangeBans ) {
 383                                         if( !IP::isIPv4( $this->BlockAddress ) || $matches[2] < $wgBlockCIDRLimit || $matches[2] > 32 ) {
 384                                                 return array( 'ip_range_invalid' );
 385                                         }
 386                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 387                                 } else {
 388                                         # Range block illegal
 389                                         return array( 'range_block_disabled' );
 390                                 }
 391                         } elseif( preg_match( "/^($rxIP6)\\/(\\d{1,3})$/", $this->BlockAddress, $matches ) ) {
 392                                 # IPv6
 393                                 if( $wgSysopRangeBans ) {
 394                                         if( !IP::isIPv6( $this->BlockAddress ) || $matches[2] < 64 || $matches[2] > 128 ) {
 395                                                 return array( 'ip_range_invalid' );
 396                                         }
 397                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 398                                 } else {
 399                                         # Range block illegal
 400                                         return array('range_block_disabled');
 401                                 }
 402                         } else {
 403                                 # Username block
 404                                 if( $wgSysopUserBans ) {
 405                                         $user = User::newFromName( $this->BlockAddress );
 406                                         if( !is_null( $user ) && $user->getId() ) {
 407                                                 # Use canonical name
 408                                                 $userId = $user->getId();
 409                                                 $this->BlockAddress = $user->getName();
 410                                         } else {
 411                                                 return array( 'nosuchusershort', htmlspecialchars( $user ? $user->getName() : $this->BlockAddress ) );
 412                                         }
 413                                 } else {
 414                                         return array( 'badipaddress' );
 415                                 }
 416                         }
 417                 }
 418
 419                 if( $wgUser->isBlocked() && ( $wgUser->getId() !== $userId ) ) {
 420                         return array( 'cant-block-while-blocked' );
 421                 }
 422
 423                 $reasonstr = $this->BlockReasonList;
 424                 if( $reasonstr != 'other' && $this->BlockReason != '' ) {
 425                         // Entry from drop down menu + additional comment
 426                         $reasonstr .= wfMsgForContent( 'colon-separator' ) . $this->BlockReason;
 427                 } elseif( $reasonstr == 'other' ) {
 428                         $reasonstr = $this->BlockReason;
 429                 }
 430
 431                 $expirestr = $this->BlockExpiry;
 432                 if( $expirestr == 'other' )
 433                         $expirestr = $this->BlockOther;
 434
 435                 if( ( strlen( $expirestr ) == 0) || ( strlen( $expirestr ) > 50 ) ) {
 436                         return array( 'ipb_expiry_invalid' );
 437                 }
 438
 439                 if( false === ( $expiry = Block::parseExpiryInput( $expirestr ) ) ) {
 440                         // Bad expiry.
 441                         return array( 'ipb_expiry_invalid' );
 442                 }
 443
 444                 if( $this->BlockHideName ) {
 445                         // Recheck params here...
 446                         if( !$userId || !$wgUser->isAllowed('hideuser') ) {
 447                                 $this->BlockHideName = false; // IP users should not be hidden
 448                         } elseif( $expiry !== 'infinity' ) {
 449                                 // Bad expiry.
 450                                 return array( 'ipb_expiry_temp' );
 451                         } elseif( User::edits( $userId ) > self::HIDEUSER_CONTRIBLIMIT ) {
 452                                 // Typically, the user should have a handful of edits.
 453                                 // Disallow hiding users with many edits for performance.
 454                                 return array( 'ipb_hide_invalid' );
 455                         }
 456                 }
 457
 458                 # Create block object
 459                 # Note: for a user block, ipb_address is only for display purposes
 460                 $block = new Block( $this->BlockAddress, $userId, $wgUser->getId(),
 461                         $reasonstr, wfTimestampNow(), 0, $expiry, $this->BlockAnonOnly,
 462                         $this->BlockCreateAccount, $this->BlockEnableAutoblock, $this->BlockHideName,
 463                         $this->BlockEmail,
 464                         isset( $this->BlockAllowUsertalk ) ? $this->BlockAllowUsertalk : $wgBlockAllowsUTEdit
 465                 );
 466
 467                 # Should this be privately logged?
 468                 $suppressLog = (bool)$this->BlockHideName;
 469                 if( wfRunHooks( 'BlockIp', array( &$block, &$wgUser ) ) ) {
 470                         # Try to insert block. Is there a conflicting block?
 471                         if( !$block->insert() ) {
 472                                 # Show form unless the user is already aware of this...
 473                                 if( !$this->BlockReblock ) {
 474                                         return array( 'ipb_already_blocked' );
 475                                 # Otherwise, try to update the block...
 476                                 } else {
 477                                         # This returns direct blocks before autoblocks/rangeblocks, since we should
 478                                         # be sure the user is blocked by now it should work for our purposes
 479                                         $currentBlock = Block::newFromDB( $this->BlockAddress, $userId );
 480                                         if( $block->equals( $currentBlock ) ) {
 481                                                 return array( 'ipb_already_blocked' );
 482                                         }
 483                                         # If the name was hidden and the blocking user cannot hide
 484                                         # names, then don't allow any block changes...
 485                                         if( $currentBlock->mHideName && !$wgUser->isAllowed( 'hideuser' ) ) {
 486                                                 return array( 'cant-see-hidden-user' );
 487                                         }
 488                                         $currentBlock->delete();
 489                                         $block->insert();
 490                                         # If hiding/unhiding a name, this should go in the private logs
 491                                         $suppressLog = $suppressLog || (bool)$currentBlock->mHideName;
 492                                         $log_action = 'reblock';
 493                                         # Unset _deleted fields if requested
 494                                         if( $currentBlock->mHideName && !$this->BlockHideName ) {
 495                                                 self::unsuppressUserName( $this->BlockAddress, $userId );
 496                                         }
 497                                 }
 498                         } else {
 499                                 $log_action = 'block';
 500                         }
 501                         wfRunHooks( 'BlockIpComplete', array( $block, $wgUser ) );
 502
 503                         # Set *_deleted fields if requested
 504                         if( $this->BlockHideName ) {
 505                                 self::suppressUserName( $this->BlockAddress, $userId );
 506                         }
 507
 508                         # Only show watch link when this is no range block
 509                         if( $this->BlockWatchUser && $block->mRangeStart == $block->mRangeEnd ) {
 510                                 $wgUser->addWatch( Title::makeTitle( NS_USER, $this->BlockAddress ) );
 511                         }
 512
 513                         # Block constructor sanitizes certain block options on insert
 514                         $this->BlockEmail = $block->mBlockEmail;
 515                         $this->BlockEnableAutoblock = $block->mEnableAutoblock;
 516
 517                         # Prepare log parameters
 518                         $logParams = array();
 519                         $logParams[] = $expirestr;
 520                         $logParams[] = $this->blockLogFlags();
 521
 522                         # Make log entry, if the name is hidden, put it in the oversight log
 523                         $log_type = $suppressLog ? 'suppress' : 'block';
 524                         $log = new LogPage( $log_type );
 525                         $log->addEntry( $log_action, Title::makeTitle( NS_USER, $this->BlockAddress ),
 526                                 $reasonstr, $logParams );
 527
 528                         # Report to the user
 529                         return array();
 530                 } else {
 531                         return array( 'hookaborted' );
 532                 }
 533         }
 534
 535         public static function suppressUserName( $name, $userId ) {
 536                 $op = '|'; // bitwise OR
 537                 return self::setUsernameBitfields( $name, $userId, $op );
 538         }
 539
 540         public static function unsuppressUserName( $name, $userId ) {
 541                 $op = '&'; // bitwise AND
 542                 return self::setUsernameBitfields( $name, $userId, $op );
 543         }
 544
 545         private static function setUsernameBitfields( $name, $userId, $op ) {
 546                 if( $op !== '|' && $op !== '&' ) return false; // sanity check
 547                 $dbw = wfGetDB( DB_MASTER );
 548                 $delUser = Revision::DELETED_USER | Revision::DELETED_RESTRICTED;
 549                 $delAction = LogPage::DELETED_ACTION | Revision::DELETED_RESTRICTED;
 550                 # Normalize user name
 551                 $userTitle = Title::makeTitleSafe( NS_USER, $name );
 552                 $userDbKey = $userTitle->getDBkey();
 553                 # To suppress, we OR the current bitfields with Revision::DELETED_USER
 554                 # to put a 1 in the username *_deleted bit. To unsuppress we AND the
 555                 # current bitfields with the inverse of Revision::DELETED_USER. The
 556                 # username bit is made to 0 (x & 0 = 0), while others are unchanged (x & 1 = x).
 557                 # The same goes for the sysop-restricted *_deleted bit.
 558                 if( $op == '&' ) {
 559                         $delUser = "~{$delUser}";
 560                         $delAction = "~{$delAction}";
 561                 }
 562                 # Hide name from live edits
 563                 $dbw->update( 'revision', array( "rev_deleted = rev_deleted $op $delUser" ),
 564                         array( 'rev_user' => $userId ), __METHOD__ );
 565                 # Hide name from deleted edits
 566                 $dbw->update( 'archive', array( "ar_deleted = ar_deleted $op $delUser" ),
 567                         array( 'ar_user_text' => $name ), __METHOD__ );
 568                 # Hide name from logs
 569                 $dbw->update( 'logging', array( "log_deleted = log_deleted $op $delUser" ),
 570                         array( 'log_user' => $userId, "log_type != 'suppress'" ), __METHOD__ );
 571                 $dbw->update( 'logging', array( "log_deleted = log_deleted $op $delAction" ),
 572                         array( 'log_namespace' => NS_USER, 'log_title' => $userDbKey,
 573                                 "log_type != 'suppress'" ), __METHOD__ );
 574                 # Hide name from RC
 575                 $dbw->update( 'recentchanges', array( "rc_deleted = rc_deleted $op $delUser" ),
 576                         array( 'rc_user_text' => $name ), __METHOD__ );
 577                 $dbw->update( 'recentchanges', array( "rc_deleted = rc_deleted $op $delAction" ),
 578                         array( 'rc_namespace' => NS_USER, 'rc_title' => $userDbKey, 'rc_logid > 0' ), __METHOD__ );
 579                 # Hide name from live images
 580                 $dbw->update( 'oldimage', array( "oi_deleted = oi_deleted $op $delUser" ),
 581                         array( 'oi_user_text' => $name ), __METHOD__ );
 582                 # Hide name from deleted images
 583                 # WMF - schema change pending
 584                 # $dbw->update( 'filearchive', array( "fa_deleted = fa_deleted $op $delUser" ),
 585                 #       array( 'fa_user_text' => $name ), __METHOD__ );
 586                 # Done!
 587                 return true;
 588         }
 589
 590         /**
 591          * UI entry point for blocking
 592          * Wraps around doBlock()
 593          */
 594         public function doSubmit() {
 595                 global $wgOut;
 596                 $retval = $this->doBlock();
 597                 if( empty( $retval ) ) {
 598                         $titleObj = SpecialPage::getTitleFor( 'Blockip' );
 599                         $wgOut->redirect( $titleObj->getFullURL( 'action=success&ip=' .
 600                                 urlencode( $this->BlockAddress ) ) );
 601                         return;
 602                 }
 603                 $this->showForm( $retval );
 604         }
 605
 606         public function showSuccess() {
 607                 global $wgOut;
 608
 609                 $wgOut->setPageTitle( wfMsg( 'blockip' ) );
 610                 $wgOut->setSubtitle( wfMsg( 'blockipsuccesssub' ) );
 611                 $text = wfMsgExt( 'blockipsuccesstext', array( 'parse' ), $this->BlockAddress );
 612                 $wgOut->addHTML( $text );
 613         }
 614
 615         private function showLogFragment( $out, $title ) {
 616                 global $wgUser;
 617
 618                 // Used to support GENDER in 'blocklog-showlog' and 'blocklog-showsuppresslog'
 619                 $userBlocked = $title->getText();
 620
 621                 LogEventsList::showLogExtract(
 622                         $out,
 623                         'block',
 624                         $title->getPrefixedText(),
 625                         '',
 626                         array(
 627                                 'lim' => 10,
 628                                 'msgKey' => array(
 629                                         'blocklog-showlog',
 630                                         $userBlocked
 631                                 ),
 632                                 'showIfEmpty' => false
 633                         )
 634                 );
 635
 636                 // Add suppression block entries if allowed
 637                 if( $wgUser->isAllowed( 'hideuser' ) ) {
 638                         LogEventsList::showLogExtract( $out, 'suppress', $title->getPrefixedText(), '',
 639                                 array(
 640                                         'lim' => 10,
 641                                         'conds' => array(
 642                                                 'log_action' => array(
 643                                                         'block',
 644                                                         'reblock',
 645                                                         'unblock'
 646                                                 )
 647                                         ),
 648                                         'msgKey' => array(
 649                                                 'blocklog-showsuppresslog',
 650                                                 $userBlocked
 651                                         ),
 652                                         'showIfEmpty' => false
 653                                 )
 654                         );
 655                 }
 656         }
 657
 658         /**
 659          * Return a comma-delimited list of "flags" to be passed to the log
 660          * reader for this block, to provide more information in the logs
 661          *
 662          * @return array
 663          */
 664         private function blockLogFlags() {
 665                 global $wgBlockAllowsUTEdit;
 666                 $flags = array();
 667                 if( $this->BlockAnonOnly && IP::isIPAddress( $this->BlockAddress ) )
 668                         // when blocking a user the option 'anononly' is not available/has no effect -> do not write this into log
 669                         $flags[] = 'anononly';
 670                 if( $this->BlockCreateAccount )
 671                         $flags[] = 'nocreate';
 672                 if( !$this->BlockEnableAutoblock && !IP::isIPAddress( $this->BlockAddress ) )
 673                         // Same as anononly, this is not displayed when blocking an IP address
 674                         $flags[] = 'noautoblock';
 675                 if( $this->BlockEmail )
 676                         $flags[] = 'noemail';
 677                 if( !$this->BlockAllowUsertalk && $wgBlockAllowsUTEdit )
 678                         $flags[] = 'nousertalk';
 679                 if( $this->BlockHideName )
 680                         $flags[] = 'hiddenname';
 681                 return implode( ',', $flags );
 682         }
 683
 684         /**
 685          * Builds unblock and block list links
 686          *
 687          * @return string
 688          */
 689         private function getConvenienceLinks() {
 690                 global $wgUser, $wgLang;
 691                 $skin = $wgUser->getSkin();
 692                 if( $this->BlockAddress )
 693                         $links[] = $this->getContribsLink( $skin );
 694                 $links[] = $this->getUnblockLink( $skin );
 695                 $links[] = $this->getBlockListLink( $skin );
 696                 $title = Title::makeTitle( NS_MEDIAWIKI, 'Ipbreason-dropdown' );
 697                 $links[] = $skin->link(
 698                         $title,
 699                         wfMsgHtml( 'ipb-edit-dropdown' ),
 700                         array(),
 701                         array( 'action' => 'edit' )
 702                 );
 703                 return '<p class="mw-ipb-conveniencelinks">' . $wgLang->pipeList( $links ) . '</p>';
 704         }
 705
 706         /**
 707          * Build a convenient link to a user or IP's contribs
 708          * form
 709          *
 710          * @param $skin Skin to use
 711          * @return string
 712          */
 713         private function getContribsLink( $skin ) {
 714                 $contribsPage = SpecialPage::getTitleFor( 'Contributions', $this->BlockAddress );
 715                 return $skin->link( $contribsPage, wfMsgExt( 'ipb-blocklist-contribs', 'escape', $this->BlockAddress ) );
 716         }
 717
 718         /**
 719          * Build a convenient link to unblock the given username or IP
 720          * address, if available; otherwise link to a blank unblock
 721          * form
 722          *
 723          * @param $skin Skin to use
 724          * @return string
 725          */
 726         private function getUnblockLink( $skin ) {
 727                 $list = SpecialPage::getTitleFor( 'Ipblocklist' );
 728                 $query = array( 'action' => 'unblock' );
 729
 730                 if( $this->BlockAddress ) {
 731                         $addr = strtr( $this->BlockAddress, '_', ' ' );
 732                         $message = wfMsg( 'ipb-unblock-addr', $addr );
 733                         $query['ip'] = $this->BlockAddress;
 734                 } else {
 735                         $message = wfMsg( 'ipb-unblock' );
 736                 }
 737                 return $skin->linkKnown(
 738                         $list,
 739                         htmlspecialchars( $message ),
 740                         array(),
 741                         $query
 742                 );
 743         }
 744
 745         /**
 746          * Build a convenience link to the block list
 747          *
 748          * @param $skin Skin to use
 749          * @return string
 750          */
 751         private function getBlockListLink( $skin ) {
 752                 $list = SpecialPage::getTitleFor( 'Ipblocklist' );
 753                 $query = array();
 754
 755                 if( $this->BlockAddress ) {
 756                         $addr = strtr( $this->BlockAddress, '_', ' ' );
 757                         $message = wfMsg( 'ipb-blocklist-addr', $addr );
 758                         $query['ip'] = $this->BlockAddress;
 759                 } else {
 760                         $message = wfMsg( 'ipb-blocklist' );
 761                 }
 762
 763                 return $skin->linkKnown(
 764                         $list,
 765                         htmlspecialchars( $message ),
 766                         array(),
 767                         $query
 768                 );
 769         }
 770
 771         /**
 772          * Block a list of selected users
 773          * @param array $users
 774          * @param string $reason
 775          * @param string $tag replaces user pages
 776          * @param string $talkTag replaces user talk pages
 777          * @returns array, list of html-safe usernames
 778          */
 779         public static function doMassUserBlock( $users, $reason = '', $tag = '', $talkTag = '' ) {
 780                 global $wgUser;
 781                 $counter = $blockSize = 0;
 782                 $safeUsers = array();
 783                 $log = new LogPage( 'block' );
 784                 foreach( $users as $name ) {
 785                         # Enforce limits
 786                         $counter++;
 787                         $blockSize++;
 788                         # Lets not go *too* fast
 789                         if( $blockSize >= 20 ) {
 790                                 $blockSize = 0;
 791                                 wfWaitForSlaves( 5 );
 792                         }
 793                         $u = User::newFromName( $name, false );
 794                         // If user doesn't exist, it ought to be an IP then
 795                         if( is_null( $u ) || ( !$u->getId() && !IP::isIPAddress( $u->getName() ) ) ) {
 796                                 continue;
 797                         }
 798                         $userTitle = $u->getUserPage();
 799                         $userTalkTitle = $u->getTalkPage();
 800                         $userpage = new Article( $userTitle );
 801                         $usertalk = new Article( $userTalkTitle );
 802                         $safeUsers[] = '[[' . $userTitle->getPrefixedText() . '|' . $userTitle->getText() . ']]';
 803                         $expirestr = $u->getId() ? 'indefinite' : '1 week';
 804                         $expiry = Block::parseExpiryInput( $expirestr );
 805                         $anonOnly = IP::isIPAddress( $u->getName() ) ? 1 : 0;
 806                         // Create the block
 807                         $block = new Block( $u->getName(), // victim
 808                                 $u->getId(), // uid
 809                                 $wgUser->getId(), // blocker
 810                                 $reason, // comment
 811                                 wfTimestampNow(), // block time
 812                                 0, // auto ?
 813                                 $expiry, // duration
 814                                 $anonOnly, // anononly?
 815                                 1, // block account creation?
 816                                 1, // autoblocking?
 817                                 0, // suppress name?
 818                                 0 // block from sending email?
 819                         );
 820                         $oldblock = Block::newFromDB( $u->getName(), $u->getId() );
 821                         if( !$oldblock ) {
 822                                 $block->insert();
 823                                 # Prepare log parameters
 824                                 $logParams = array();
 825                                 $logParams[] = $expirestr;
 826                                 if( $anonOnly ) {
 827                                         $logParams[] = 'anononly';
 828                                 }
 829                                 $logParams[] = 'nocreate';
 830                                 # Add log entry
 831                                 $log->addEntry( 'block', $userTitle, $reason, $logParams );
 832                         }
 833                         # Tag userpage! (check length to avoid mistakes)
 834                         if( strlen( $tag ) > 2 ) {
 835                                 $userpage->doEdit( $tag, $reason, EDIT_MINOR );
 836                         }
 837                         if( strlen( $talkTag ) > 2 ) {
 838                                 $usertalk->doEdit( $talkTag, $reason, EDIT_MINOR );
 839                         }
 840                 }
 841                 return $safeUsers;
 842         }
 843 }