includes/specials/SpecialBlock.php

   1 <?php
   2 /**
   3  * Implements Special:Blockip
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * A special page that allows users with 'block' right to block users from
  26  * editing pages and other actions
  27  *
  28  * @ingroup SpecialPage
  29  */
  30 class IPBlockForm extends SpecialPage {
  31         var $BlockAddress, $BlockExpiry, $BlockReason, $BlockReasonList, $BlockOther, $BlockAnonOnly, $BlockCreateAccount,
  32                 $BlockEnableAutoblock, $BlockEmail, $BlockHideName, $BlockAllowUsertalk, $BlockReblock, $BlockWatchUser;
  33         // The maximum number of edits a user can have and still be hidden
  34         const HIDEUSER_CONTRIBLIMIT = 1000;
  35
  36         public function __construct() {
  37                 parent::__construct( 'Blockip', 'block' );
  38         }
  39
  40         public function execute( $par ) {
  41                 global $wgUser, $wgOut, $wgRequest;
  42
  43                 # Can't block when the database is locked
  44                 if( wfReadOnly() ) {
  45                         $wgOut->readOnlyPage();
  46                         return;
  47                 }
  48                 # Permission check
  49                 if( !$this->userCanExecute( $wgUser ) ) {
  50                         $wgOut->permissionRequired( 'block' );
  51                         return;
  52                 }
  53
  54                 $this->setup( $par );
  55
  56                 # bug 15810: blocked admins should have limited access here
  57                 if ( $wgUser->isBlocked() ) {
  58                         $status = IPBlockForm::checkUnblockSelf( $this->BlockAddress );
  59                         if ( $status !== true ) {
  60                                 throw new ErrorPageError( 'badaccess', $status );
  61                         }
  62                 }
  63
  64                 $action = $wgRequest->getVal( 'action' );
  65                 if( 'success' == $action ) {
  66                         $this->showSuccess();
  67                 } elseif( $wgRequest->wasPosted() && 'submit' == $action &&
  68                         $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ) ) ) {
  69                         $this->doSubmit();
  70                 } else {
  71                         $this->showForm( '' );
  72                 }
  73         }
  74
  75         private function setup( $par ) {
  76                 global $wgRequest, $wgUser, $wgBlockAllowsUTEdit;
  77
  78                 $this->BlockAddress = $wgRequest->getVal( 'wpBlockAddress', $wgRequest->getVal( 'ip', $par ) );
  79                 $this->BlockAddress = strtr( $this->BlockAddress, '_', ' ' );
  80                 $this->BlockReason = $wgRequest->getText( 'wpBlockReason' );
  81                 $this->BlockReasonList = $wgRequest->getText( 'wpBlockReasonList' );
  82                 $this->BlockExpiry = $wgRequest->getVal( 'wpBlockExpiry', wfMsg( 'ipbotheroption' ) );
  83                 $this->BlockOther = $wgRequest->getVal( 'wpBlockOther', '' );
  84
  85                 # Unchecked checkboxes are not included in the form data at all, so having one
  86                 # that is true by default is a bit tricky
  87                 $byDefault = !$wgRequest->wasPosted();
  88                 $this->BlockAnonOnly = $wgRequest->getBool( 'wpAnonOnly', $byDefault );
  89                 $this->BlockCreateAccount = $wgRequest->getBool( 'wpCreateAccount', $byDefault );
  90                 $this->BlockEnableAutoblock = $wgRequest->getBool( 'wpEnableAutoblock', $byDefault );
  91                 $this->BlockEmail = false;
  92                 if( self::canBlockEmail( $wgUser ) ) {
  93                         $this->BlockEmail = $wgRequest->getBool( 'wpEmailBan', false );
  94                 }
  95                 $this->BlockWatchUser = $wgRequest->getBool( 'wpWatchUser', false ) && $wgUser->isLoggedIn();
  96                 # Re-check user's rights to hide names, very serious, defaults to null
  97                 if( $wgUser->isAllowed( 'hideuser' ) ) {
  98                         $this->BlockHideName = $wgRequest->getBool( 'wpHideName', null );
  99                 } else {
 100                         $this->BlockHideName = false;
 101                 }
 102                 $this->BlockAllowUsertalk = ( $wgRequest->getBool( 'wpAllowUsertalk', $byDefault ) && $wgBlockAllowsUTEdit );
 103                 $this->BlockReblock = $wgRequest->getBool( 'wpChangeBlock', false );
 104
 105                 $this->wasPosted = $wgRequest->wasPosted();
 106         }
 107
 108         public function showForm( $err ) {
 109                 global $wgOut, $wgUser;
 110
 111                 $wgOut->setPageTitle( wfMsg( 'blockip-title' ) );
 112                 $wgOut->addWikiMsg( 'blockiptext' );
 113
 114                 $mIpaddress = Xml::label( wfMsg( 'ipadressorusername' ), 'mw-bi-target' );
 115                 $mIpbexpiry = Xml::label( wfMsg( 'ipbexpiry' ), 'wpBlockExpiry' );
 116                 $mIpbother = Xml::label( wfMsg( 'ipbother' ), 'mw-bi-other' );
 117                 $mIpbreasonother = Xml::label( wfMsg( 'ipbreason' ), 'wpBlockReasonList' );
 118                 $mIpbreason = Xml::label( wfMsg( 'ipbotherreason' ), 'mw-bi-reason' );
 119
 120                 $titleObj = SpecialPage::getTitleFor( 'Blockip' );
 121                 $user = User::newFromName( $this->BlockAddress );
 122                 if ( is_object( $user ) || User::isIP( $this->BlockAddress ) ) {
 123                         $wgUser->getSkin()->setRelevantUser( is_object($user) ? $user : User::newFromName( $this->BlockAddress, false ) );
 124                 }
 125
 126                 $alreadyBlocked = false;
 127                 $otherBlockedMsgs = array();
 128                 if( $err && $err[0] != 'ipb_already_blocked' ) {
 129                         $key = array_shift( $err );
 130                         $msg = wfMsgExt( $key, 'parsemag', $err );
 131                         $wgOut->setSubtitle( wfMsgHtml( 'formerror' ) );
 132                         $wgOut->addHTML( Xml::tags( 'p', array( 'class' => 'error' ), $msg ) );
 133                 } elseif( $this->BlockAddress !== null ) {
 134                         # Get other blocks, i.e. from GlobalBlocking or TorBlock extension
 135                         wfRunHooks( 'OtherBlockLogLink', array( &$otherBlockedMsgs, $this->BlockAddress ) );
 136
 137                         $userId = is_object( $user ) ? $user->getId() : 0;
 138                         $currentBlock = Block::newFromDB( $this->BlockAddress, $userId );
 139                         if( !is_null( $currentBlock ) && !$currentBlock->mAuto && # The block exists and isn't an autoblock
 140                                 ( $currentBlock->mRangeStart == $currentBlock->mRangeEnd || # The block isn't a rangeblock
 141                                 # or if it is, the range is what we're about to block
 142                                 ( $currentBlock->mAddress == $this->BlockAddress ) )
 143                         ) {
 144                                 $alreadyBlocked = true;
 145                                 # Set the block form settings to the existing block
 146                                 if( !$this->wasPosted ) {
 147                                         $this->BlockAnonOnly = $currentBlock->mAnonOnly;
 148                                         $this->BlockCreateAccount = $currentBlock->mCreateAccount;
 149                                         $this->BlockEnableAutoblock = $currentBlock->mEnableAutoblock;
 150                                         $this->BlockEmail = $currentBlock->mBlockEmail;
 151                                         $this->BlockHideName = $currentBlock->mHideName;
 152                                         $this->BlockAllowUsertalk = $currentBlock->mAllowUsertalk;
 153                                         if( $currentBlock->mExpiry == 'infinity' ) {
 154                                                 $this->BlockOther = 'indefinite';
 155                                         } else {
 156                                                 $this->BlockOther = wfTimestamp( TS_ISO_8601, $currentBlock->mExpiry );
 157                                         }
 158                                         $this->BlockReason = $currentBlock->mReason;
 159                                 }
 160                         }
 161                 }
 162
 163                 # Show other blocks from extensions, i.e. GlockBlocking and TorBlock
 164                 if( count( $otherBlockedMsgs ) ) {
 165                         $wgOut->addHTML(
 166                                 Html::rawElement( 'h2', array(), wfMsgExt( 'ipb-otherblocks-header', 'parseinline', count( $otherBlockedMsgs ) ) ) . "\n"
 167                         );
 168                         $list = '';
 169                         foreach( $otherBlockedMsgs as $link ) {
 170                                 $list .= Html::rawElement( 'li', array(), $link ) . "\n";
 171                         }
 172                         $wgOut->addHTML( Html::rawElement( 'ul', array( 'class' => 'mw-blockip-alreadyblocked' ), $list ) . "\n" );
 173                 }
 174
 175                 # Username/IP is blocked already locally
 176                 if( $alreadyBlocked ) {
 177                         $wgOut->wrapWikiMsg( "<div class='mw-ipb-needreblock'>\n$1\n</div>", array( 'ipb-needreblock', $this->BlockAddress ) );
 178                 }
 179
 180                 $scBlockExpiryOptions = wfMsgForContent( 'ipboptions' );
 181
 182                 $showblockoptions = $scBlockExpiryOptions != '-';
 183                 if( !$showblockoptions ) $mIpbother = $mIpbexpiry;
 184
 185                 $blockExpiryFormOptions = Xml::option( wfMsg( 'ipbotheroption' ), 'other' );
 186                 foreach( explode( ',', $scBlockExpiryOptions ) as $option ) {
 187                         if( strpos( $option, ':' ) === false ) $option = "$option:$option";
 188                         list( $show, $value ) = explode( ':', $option );
 189                         $show = htmlspecialchars( $show );
 190                         $value = htmlspecialchars( $value );
 191                         $blockExpiryFormOptions .= Xml::option( $show, $value, $this->BlockExpiry === $value ) . "\n";
 192                 }
 193
 194                 $reasonDropDown = Xml::listDropDown( 'wpBlockReasonList',
 195                         wfMsgForContent( 'ipbreason-dropdown' ),
 196                         wfMsgForContent( 'ipbreasonotherlist' ), $this->BlockReasonList, 'wpBlockDropDown', 4 );
 197
 198                 # FIXME: this should actually use HTMLForm, not just some of its JavaScript
 199                 $wgOut->addModules( array( 'mediawiki.special.block', 'mediawiki.htmlform' ) );
 200
 201                 $wgOut->addHTML(
 202                         Xml::openElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalURL( 'action=submit' ), 'id' => 'blockip' ) ) .
 203                         Xml::openElement( 'fieldset' ) .
 204                         Xml::element( 'legend', null, wfMsg( 'blockip-legend' ) ) .
 205                         Xml::openElement( 'table', array( 'border' => '0', 'id' => 'mw-blockip-table' ) ) .
 206                         "<tr>
 207                                 <td class='mw-label'>
 208                                         {$mIpaddress}
 209                                 </td>
 210                                 <td class='mw-input'>" .
 211                                         Html::input( 'wpBlockAddress', $this->BlockAddress, 'text', array(
 212                                                 'tabindex' => '1',
 213                                                 'id' => 'mw-bi-target',
 214                                                 'size' => '45',
 215                                                 'required' => ''
 216                                         ) + ( $this->BlockAddress ? array() : array( 'autofocus' ) ) ). "
 217                                 </td>
 218                         </tr>
 219                         <tr>
 220                                 <td class='mw-label'>
 221                                         {$mIpbexpiry}
 222                                 </td>
 223                                 <td class='mw-input'>"
 224                 );
 225                 if( $showblockoptions ) {
 226                         $wgOut->addHTML(
 227                                         Xml::tags( 'select',
 228                                                 array(
 229                                                         'id' => 'wpBlockExpiry',
 230                                                         'name' => 'wpBlockExpiry',
 231                                                         'class' => 'mw-htmlform-select-or-other', # FIXME: actually make this use HTMLForm
 232                                                         'tabindex' => '2' ),
 233                                                 $blockExpiryFormOptions
 234                                         ) . "<br/>\n"
 235                         );
 236                 }
 237                 $wgOut->addHTML(
 238                                         Xml::input(
 239                                                 'wpBlockOther',
 240                                                 45,
 241                                                 $this->BlockOther,
 242                                                 array(
 243                                                         'tabindex' => '3',
 244                                                         'id' => 'wpBlockExpiry-other'
 245                                                 )
 246                                         ) . "
 247                                 </td>
 248                         </tr>
 249                         <tr>
 250                                 <td class='mw-label'>
 251                                         {$mIpbreasonother}
 252                                 </td>
 253                                 <td class='mw-input'>
 254                                         {$reasonDropDown}
 255                                 </td>
 256                         </tr>
 257                         <tr id=\"wpBlockReason\">
 258                                 <td class='mw-label'>
 259                                         {$mIpbreason}
 260                                 </td>
 261                                 <td class='mw-input'>" .
 262                                 Html::input( 'wpBlockReason', $this->BlockReason, 'text', array(
 263                                         'tabindex' => '5',
 264                                         'id' => 'mw-bi-reason',
 265                                         'maxlength' => '200',
 266                                         'size' => '45'
 267                                 ) + ( $this->BlockAddress ? array( 'autofocus' ) : array() ) ) . "
 268                                 </td>
 269                         </tr>
 270                         <tr id='wpCreateAccountRow'>
 271                                 <td>&#160;</td>
 272                                 <td class='mw-input'>" .
 273                                         Xml::checkLabel( wfMsg( 'ipbcreateaccount' ),
 274                                                 'wpCreateAccount', 'wpCreateAccount', $this->BlockCreateAccount,
 275                                                 array( 'tabindex' => '7' ) ) . "
 276                                 </td>
 277                         </tr>"
 278                 );
 279
 280                 if( self::canBlockEmail( $wgUser ) ) {
 281                         $wgOut->addHTML("
 282                                 <tr id='wpEnableEmailBan'>
 283                                         <td>&#160;</td>
 284                                         <td class='mw-input'>" .
 285                                                 Xml::checkLabel( wfMsg( 'ipbemailban' ),
 286                                                         'wpEmailBan', 'wpEmailBan', $this->BlockEmail,
 287                                                         array( 'tabindex' => '9' ) ) . "
 288                                         </td>
 289                                 </tr>"
 290                         );
 291                 }
 292
 293                 # Can we explicitly disallow the use of user_talk?
 294                 global $wgBlockAllowsUTEdit;
 295                 if( $wgBlockAllowsUTEdit ){
 296                         $wgOut->addHTML("
 297                                 <tr id='wpAllowUsertalkRow'>
 298                                         <td>&#160;</td>
 299                                         <td class='mw-input'>" .
 300                                                 Xml::checkLabel( wfMsg( 'ipballowusertalk' ),
 301                                                         'wpAllowUsertalk', 'wpAllowUsertalk', $this->BlockAllowUsertalk,
 302                                                         array( 'tabindex' => '12' ) ) . "
 303                                         </td>
 304                                 </tr>"
 305                         );
 306                 }
 307
 308                 $wgOut->addHTML( "
 309                         <tr id='wpEnableAutoblockRow'>
 310                                 <td>&#160;</td>
 311                                 <td class='mw-input'>" .
 312                                         Xml::checkLabel( wfMsg( 'ipbenableautoblock' ),
 313                                                 'wpEnableAutoblock', 'wpEnableAutoblock', $this->BlockEnableAutoblock,
 314                                                 array( 'tabindex' => '8' ) ) . "
 315                                 </td>
 316                         </tr>"
 317                 );
 318
 319                 // Allow some users to hide name from block log, blocklist and listusers
 320                 if( $wgUser->isAllowed( 'hideuser' ) ) {
 321                         $wgOut->addHTML("
 322                                 <tr id='wpEnableHideUser'>
 323                                         <td>&#160;</td>
 324                                         <td class='mw-input'><strong>" .
 325                                                 Xml::checkLabel( wfMsg( 'ipbhidename' ),
 326                                                         'wpHideName', 'wpHideName', $this->BlockHideName,
 327                                                         array( 'tabindex' => '10' )
 328                                                 ) . "
 329                                         </strong></td>
 330                                 </tr>"
 331                         );
 332                 }
 333
 334                 # Watchlist their user page? (Only if user is logged in)
 335                 if( $wgUser->isLoggedIn() ) {
 336                         $wgOut->addHTML("
 337                         <tr id='wpEnableWatchUser'>
 338                                 <td>&#160;</td>
 339                                 <td class='mw-input'>" .
 340                                         Xml::checkLabel( wfMsg( 'ipbwatchuser' ),
 341                                                 'wpWatchUser', 'wpWatchUser', $this->BlockWatchUser,
 342                                                 array( 'tabindex' => '11' ) ) . "
 343                                 </td>
 344                         </tr>"
 345                         );
 346                 }
 347
 348                 $wgOut->addHTML("
 349                         <tr id='wpAnonOnlyRow'>
 350                                 <td>&#160;</td>
 351                                 <td class='mw-input'>" .
 352                                         Xml::checkLabel( wfMsg( 'ipbanononly' ),
 353                                                         'wpAnonOnly', 'wpAnonOnly', $this->BlockAnonOnly,
 354                                                         array( 'tabindex' => '6' ) ) . "
 355                                 </td>
 356                         </tr>
 357                         <tr>
 358                                 <td style='padding-top: 1em'>&#160;</td>
 359                                 <td  class='mw-submit' style='padding-top: 1em'>" .
 360                                         Xml::submitButton( wfMsg( $alreadyBlocked ? 'ipb-change-block' : 'ipbsubmit' ),
 361                                                 array( 'name' => 'wpBlock', 'tabindex' => '13' )
 362                                                         + $wgUser->getSkin()->tooltipAndAccessKeyAttribs( 'blockip-block' ) ). "
 363                                 </td>
 364                         </tr>" .
 365                         Xml::closeElement( 'table' ) .
 366                         Html::hidden( 'wpEditToken', $wgUser->editToken() ) .
 367                         ( $alreadyBlocked ? Html::hidden( 'wpChangeBlock', 1 ) : "" ) .
 368                         Xml::closeElement( 'fieldset' ) .
 369                         Xml::closeElement( 'form' )
 370                 );
 371
 372                 $wgOut->addHTML( $this->getConvenienceLinks() );
 373
 374                 if( is_object( $user ) ) {
 375                         $this->showLogFragment( $wgOut, $user->getUserPage() );
 376                 } elseif( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/', $this->BlockAddress ) ) {
 377                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 378                 } 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 ) ) {
 379                         $this->showLogFragment( $wgOut, Title::makeTitle( NS_USER, $this->BlockAddress ) );
 380                 }
 381         }
 382
 383         /**
 384          * Can we do an email block?
 385          * @param $user User: the sysop wanting to make a block
 386          * @return Boolean
 387          */
 388         public static function canBlockEmail( $user ) {
 389                 global $wgEnableUserEmail, $wgSysopEmailBans;
 390                 return ( $wgEnableUserEmail && $wgSysopEmailBans && $user->isAllowed( 'blockemail' ) );
 391         }
 392
 393         /**
 394          * bug 15810: blocked admins should not be able to block/unblock
 395          * others, and probably shouldn't be able to unblock themselves
 396          * either.
 397          * @param $user User|Int|String
 398          */
 399         public static function checkUnblockSelf( $user ) {
 400                 global $wgUser;
 401                 if ( is_int( $user ) ) {
 402                         $user = User::newFromId( $user );
 403                 } elseif ( is_string( $user ) ) {
 404                         $user = User::newFromName( $user );
 405                 }
 406                 if( $user instanceof User && $user->getId() == $wgUser->getId() ) {
 407                         # User is trying to unblock themselves
 408                         if ( $wgUser->isAllowed( 'unblockself' ) ) {
 409                                 return true;
 410                         } else {
 411                                 return 'ipbnounblockself';
 412                         }
 413                 } else {
 414                         # User is trying to block/unblock someone else
 415                         return 'ipbblocked';
 416                 }
 417         }
 418
 419         /**
 420          * Backend block code.
 421          * $userID and $expiry will be filled accordingly
 422          * @return array(message key, arguments) on failure, empty array on success
 423          */
 424         function doBlock( &$userId = null, &$expiry = null ) {
 425                 global $wgUser, $wgBlockAllowsUTEdit, $wgBlockCIDRLimit;
 426
 427                 $userId = 0;
 428                 # Expand valid IPv6 addresses, usernames are left as is
 429                 $this->BlockAddress = IP::sanitizeIP( $this->BlockAddress );
 430                 # isIPv4() and IPv6() are used for final validation
 431                 $rxIP4 = '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}';
 432                 $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}';
 433                 $rxIP = "($rxIP4|$rxIP6)";
 434
 435                 # Check for invalid specifications
 436                 if( !preg_match( "/^$rxIP$/", $this->BlockAddress ) ) {
 437                         $matches = array();
 438                         if( preg_match( "/^($rxIP4)\\/(\\d{1,2})$/", $this->BlockAddress, $matches ) ) {
 439                                 # IPv4
 440                                 if( $wgBlockCIDRLimit['IPv4'] != 32 ){
 441                                         if( !IP::isIPv4( $this->BlockAddress ) || $matches[2] > 32 ) {
 442                                                 return array( 'ip_range_invalid' );
 443                                         } elseif ( $matches[2] < $wgBlockCIDRLimit['IPv4'] ) {
 444                                                 return array( 'ip_range_toolarge', $wgBlockCIDRLimit['IPv4'] );
 445                                         }
 446                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 447                                 } else {
 448                                         # Range block illegal
 449                                         return array( 'range_block_disabled' );
 450                                 }
 451                         } elseif( preg_match( "/^($rxIP6)\\/(\\d{1,3})$/", $this->BlockAddress, $matches ) ) {
 452                                 # IPv6
 453                                 if( $wgBlockCIDRLimit['IPv6'] != 128 ) {
 454                                         if( !IP::isIPv6( $this->BlockAddress ) || $matches[2] > 128 ) {
 455                                                 return array( 'ip_range_invalid' );
 456                                         } elseif( $matches[2] < $wgBlockCIDRLimit['IPv6'] ) {
 457                                                 return array( 'ip_range_toolarge', $wgBlockCIDRLimit['IPv6'] );
 458                                         }
 459                                         $this->BlockAddress = Block::normaliseRange( $this->BlockAddress );
 460                                 } else {
 461                                         # Range block illegal
 462                                         return array('range_block_disabled');
 463                                 }
 464                         } else {
 465                                 # Username block
 466                                 $user = User::newFromName( $this->BlockAddress );
 467                                 if( $user instanceof User && $user->getId() ) {
 468                                         # Use canonical name
 469                                         $userId = $user->getId();
 470                                         $this->BlockAddress = $user->getName();
 471                                 } else {
 472                                         return array( 'nosuchusershort', htmlspecialchars( $user ? $user->getName() : $this->BlockAddress ) );
 473                                 }
 474                         }
 475                 }
 476
 477                 if( $wgUser->isBlocked() && ( $wgUser->getId() !== $userId ) ) {
 478                         return array( 'cant-block-while-blocked' );
 479                 }
 480
 481                 $reasonstr = $this->BlockReasonList;
 482                 if( $reasonstr != 'other' && $this->BlockReason != '' ) {
 483                         // Entry from drop down menu + additional comment
 484                         $reasonstr .= wfMsgForContent( 'colon-separator' ) . $this->BlockReason;
 485                 } elseif( $reasonstr == 'other' ) {
 486                         $reasonstr = $this->BlockReason;
 487                 }
 488
 489                 $expirestr = $this->BlockExpiry;
 490                 if( $expirestr == 'other' )
 491                         $expirestr = $this->BlockOther;
 492
 493                 if( ( strlen( $expirestr ) == 0) || ( strlen( $expirestr ) > 50 ) ) {
 494                         return array( 'ipb_expiry_invalid' );
 495                 }
 496
 497                 if( false === ( $expiry = Block::parseExpiryInput( $expirestr ) ) ) {
 498                         // Bad expiry.
 499                         return array( 'ipb_expiry_invalid' );
 500                 }
 501
 502                 if( $this->BlockHideName ) {
 503                         // Recheck params here...
 504                         if( !$userId || !$wgUser->isAllowed('hideuser') ) {
 505                                 $this->BlockHideName = false; // IP users should not be hidden
 506                         } elseif( $expiry !== 'infinity' ) {
 507                                 // Bad expiry.
 508                                 return array( 'ipb_expiry_temp' );
 509                         } elseif( User::edits( $userId ) > self::HIDEUSER_CONTRIBLIMIT ) {
 510                                 // Typically, the user should have a handful of edits.
 511                                 // Disallow hiding users with many edits for performance.
 512                                 return array( 'ipb_hide_invalid' );
 513                         }
 514                 }
 515
 516                 # Create block object
 517                 # Note: for a user block, ipb_address is only for display purposes
 518                 $block = new Block( $this->BlockAddress, $userId, $wgUser->getId(),
 519                         $reasonstr, wfTimestampNow(), 0, $expiry, $this->BlockAnonOnly,
 520                         $this->BlockCreateAccount, $this->BlockEnableAutoblock, $this->BlockHideName,
 521                         $this->BlockEmail,
 522                         isset( $this->BlockAllowUsertalk ) ? $this->BlockAllowUsertalk : $wgBlockAllowsUTEdit
 523                 );
 524
 525                 # Should this be privately logged?
 526                 $suppressLog = (bool)$this->BlockHideName;
 527                 if( wfRunHooks( 'BlockIp', array( &$block, &$wgUser ) ) ) {
 528                         # Try to insert block. Is there a conflicting block?
 529                         if( !$block->insert() ) {
 530                                 # Show form unless the user is already aware of this...
 531                                 if( !$this->BlockReblock ) {
 532                                         return array( 'ipb_already_blocked' );
 533                                 # Otherwise, try to update the block...
 534                                 } else {
 535                                         # This returns direct blocks before autoblocks/rangeblocks, since we should
 536                                         # be sure the user is blocked by now it should work for our purposes
 537                                         $currentBlock = Block::newFromDB( $this->BlockAddress, $userId );
 538                                         if( $block->equals( $currentBlock ) ) {
 539                                                 return array( 'ipb_already_blocked' );
 540                                         }
 541                                         # If the name was hidden and the blocking user cannot hide
 542                                         # names, then don't allow any block changes...
 543                                         if( $currentBlock->mHideName && !$wgUser->isAllowed( 'hideuser' ) ) {
 544                                                 return array( 'cant-see-hidden-user' );
 545                                         }
 546                                         $currentBlock->delete();
 547                                         $block->insert();
 548                                         # If hiding/unhiding a name, this should go in the private logs
 549                                         $suppressLog = $suppressLog || (bool)$currentBlock->mHideName;
 550                                         $log_action = 'reblock';
 551                                         # Unset _deleted fields if requested
 552                                         if( $currentBlock->mHideName && !$this->BlockHideName ) {
 553                                                 RevisionDeleteUser::unsuppressUserName( $this->BlockAddress, $userId );
 554                                         }
 555                                 }
 556                         } else {
 557                                 $log_action = 'block';
 558                         }
 559                         wfRunHooks( 'BlockIpComplete', array( $block, $wgUser ) );
 560
 561                         # Set *_deleted fields if requested
 562                         if( $this->BlockHideName ) {
 563                                 RevisionDeleteUser::suppressUserName( $this->BlockAddress, $userId );
 564                         }
 565
 566                         # Only show watch link when this is no range block
 567                         if( $this->BlockWatchUser && $block->mRangeStart == $block->mRangeEnd ) {
 568                                 $wgUser->addWatch( Title::makeTitle( NS_USER, $this->BlockAddress ) );
 569                         }
 570
 571                         # Block constructor sanitizes certain block options on insert
 572                         $this->BlockEmail = $block->mBlockEmail;
 573                         $this->BlockEnableAutoblock = $block->mEnableAutoblock;
 574
 575                         # Prepare log parameters
 576                         $logParams = array();
 577                         $logParams[] = $expirestr;
 578                         $logParams[] = $this->blockLogFlags();
 579
 580                         # Make log entry, if the name is hidden, put it in the oversight log
 581                         $log_type = $suppressLog ? 'suppress' : 'block';
 582                         $log = new LogPage( $log_type );
 583                         $log->addEntry( $log_action, Title::makeTitle( NS_USER, $this->BlockAddress ),
 584                                 $reasonstr, $logParams );
 585
 586                         # Report to the user
 587                         return array();
 588                 } else {
 589                         return array( 'hookaborted' );
 590                 }
 591         }
 592
 593         # @deprecated since 1.18
 594         public static function suppressUserName( $name, $userId, $dbw = null ) {
 595                 return RevisionDeleteUser::suppressUserName( $name, $userId, $dbw );
 596         }
 597
 598         # @deprecated since 1.18
 599         public static function unsuppressUserName( $name, $userId, $dbw = null ) {
 600                 return RevisionDeleteUser::unsuppressUserName( $name, $userId, $dbw );
 601         }
 602
 603         /**
 604          * UI entry point for blocking
 605          * Wraps around doBlock()
 606          */
 607         public function doSubmit() {
 608                 global $wgOut;
 609                 $retval = $this->doBlock();
 610                 if( empty( $retval ) ) {
 611                         $titleObj = SpecialPage::getTitleFor( 'Blockip' );
 612                         $wgOut->redirect( $titleObj->getFullURL( 'action=success&ip=' .
 613                                 urlencode( $this->BlockAddress ) ) );
 614                         return;
 615                 }
 616                 $this->showForm( $retval );
 617         }
 618
 619         public function showSuccess() {
 620                 global $wgOut;
 621
 622                 $wgOut->setPageTitle( wfMsg( 'blockip-title' ) );
 623                 $wgOut->setSubtitle( wfMsg( 'blockipsuccesssub' ) );
 624                 $text = wfMsgExt( 'blockipsuccesstext', array( 'parse' ), $this->BlockAddress );
 625                 $wgOut->addHTML( $text );
 626         }
 627
 628         private function showLogFragment( $out, $title ) {
 629                 global $wgUser;
 630
 631                 // Used to support GENDER in 'blocklog-showlog' and 'blocklog-showsuppresslog'
 632                 $userBlocked = $title->getText();
 633
 634                 LogEventsList::showLogExtract(
 635                         $out,
 636                         'block',
 637                         $title->getPrefixedText(),
 638                         '',
 639                         array(
 640                                 'lim' => 10,
 641                                 'msgKey' => array(
 642                                         'blocklog-showlog',
 643                                         $userBlocked
 644                                 ),
 645                                 'showIfEmpty' => false
 646                         )
 647                 );
 648
 649                 // Add suppression block entries if allowed
 650                 if( $wgUser->isAllowed( 'suppressionlog' ) ) {
 651                         LogEventsList::showLogExtract( $out, 'suppress', $title->getPrefixedText(), '',
 652                                 array(
 653                                         'lim' => 10,
 654                                         'conds' => array(
 655                                                 'log_action' => array(
 656                                                         'block',
 657                                                         'reblock',
 658                                                         'unblock'
 659                                                 )
 660                                         ),
 661                                         'msgKey' => array(
 662                                                 'blocklog-showsuppresslog',
 663                                                 $userBlocked
 664                                         ),
 665                                         'showIfEmpty' => false
 666                                 )
 667                         );
 668                 }
 669         }
 670
 671         /**
 672          * Return a comma-delimited list of "flags" to be passed to the log
 673          * reader for this block, to provide more information in the logs
 674          *
 675          * @return array
 676          */
 677         private function blockLogFlags() {
 678                 global $wgBlockAllowsUTEdit;
 679                 $flags = array();
 680                 if( $this->BlockAnonOnly && IP::isIPAddress( $this->BlockAddress ) )
 681                         // when blocking a user the option 'anononly' is not available/has no effect -> do not write this into log
 682                         $flags[] = 'anononly';
 683                 if( $this->BlockCreateAccount )
 684                         $flags[] = 'nocreate';
 685                 if( !$this->BlockEnableAutoblock && !IP::isIPAddress( $this->BlockAddress ) )
 686                         // Same as anononly, this is not displayed when blocking an IP address
 687                         $flags[] = 'noautoblock';
 688                 if( $this->BlockEmail )
 689                         $flags[] = 'noemail';
 690                 if( !$this->BlockAllowUsertalk && $wgBlockAllowsUTEdit )
 691                         $flags[] = 'nousertalk';
 692                 if( $this->BlockHideName )
 693                         $flags[] = 'hiddenname';
 694                 return implode( ',', $flags );
 695         }
 696
 697         /**
 698          * Builds unblock and block list links
 699          *
 700          * @return string
 701          */
 702         private function getConvenienceLinks() {
 703                 global $wgUser, $wgLang;
 704                 $skin = $wgUser->getSkin();
 705                 if( $this->BlockAddress )
 706                         $links[] = $this->getContribsLink( $skin );
 707                 $links[] = $this->getUnblockLink( $skin );
 708                 $links[] = $this->getBlockListLink( $skin );
 709                 if ( $wgUser->isAllowed( 'editinterface' ) ) {
 710                         $title = Title::makeTitle( NS_MEDIAWIKI, 'Ipbreason-dropdown' );
 711                         $links[] = $skin->link(
 712                                 $title,
 713                                 wfMsgHtml( 'ipb-edit-dropdown' ),
 714                                 array(),
 715                                 array( 'action' => 'edit' )
 716                         );
 717                 }
 718                 return '<p class="mw-ipb-conveniencelinks">' . $wgLang->pipeList( $links ) . '</p>';
 719         }
 720
 721         /**
 722          * Build a convenient link to a user or IP's contribs
 723          * form
 724          *
 725          * @param $skin Skin to use
 726          * @return string
 727          */
 728         private function getContribsLink( $skin ) {
 729                 $contribsPage = SpecialPage::getTitleFor( 'Contributions', $this->BlockAddress );
 730                 return $skin->link( $contribsPage, wfMsgExt( 'ipb-blocklist-contribs', 'escape', $this->BlockAddress ) );
 731         }
 732
 733         /**
 734          * Build a convenient link to unblock the given username or IP
 735          * address, if available; otherwise link to a blank unblock
 736          * form
 737          *
 738          * @param $skin Skin to use
 739          * @return string
 740          */
 741         private function getUnblockLink( $skin ) {
 742                 $list = SpecialPage::getTitleFor( 'Ipblocklist' );
 743                 $query = array( 'action' => 'unblock' );
 744
 745                 if( $this->BlockAddress ) {
 746                         $addr = strtr( $this->BlockAddress, '_', ' ' );
 747                         $message = wfMsg( 'ipb-unblock-addr', $addr );
 748                         $query['ip'] = $this->BlockAddress;
 749                 } else {
 750                         $message = wfMsg( 'ipb-unblock' );
 751                 }
 752                 return $skin->linkKnown(
 753                         $list,
 754                         htmlspecialchars( $message ),
 755                         array(),
 756                         $query
 757                 );
 758         }
 759
 760         /**
 761          * Build a convenience link to the block list
 762          *
 763          * @param $skin Skin to use
 764          * @return string
 765          */
 766         private function getBlockListLink( $skin ) {
 767                 return $skin->linkKnown(
 768                         SpecialPage::getTitleFor( 'Ipblocklist' ),
 769                         wfMsg( 'ipb-blocklist' )
 770                 );
 771         }
 772
 773         /**
 774          * Block a list of selected users
 775          *
 776          * @param $users Array
 777          * @param $reason String
 778          * @param $tag String: replaces user pages
 779          * @param $talkTag String: replaces user talk pages
 780          * @return Array: list of html-safe usernames
 781          */
 782         public static function doMassUserBlock( $users, $reason = '', $tag = '', $talkTag = '' ) {
 783                 global $wgUser;
 784                 $counter = $blockSize = 0;
 785                 $safeUsers = array();
 786                 $log = new LogPage( 'block' );
 787                 foreach( $users as $name ) {
 788                         # Enforce limits
 789                         $counter++;
 790                         $blockSize++;
 791                         # Lets not go *too* fast
 792                         if( $blockSize >= 20 ) {
 793                                 $blockSize = 0;
 794                                 wfWaitForSlaves( 5 );
 795                         }
 796                         $u = User::newFromName( $name, false );
 797                         // If user doesn't exist, it ought to be an IP then
 798                         if( is_null( $u ) || ( !$u->getId() && !IP::isIPAddress( $u->getName() ) ) ) {
 799                                 continue;
 800                         }
 801                         $userTitle = $u->getUserPage();
 802                         $userTalkTitle = $u->getTalkPage();
 803                         $userpage = new Article( $userTitle );
 804                         $usertalk = new Article( $userTalkTitle );
 805                         $safeUsers[] = '[[' . $userTitle->getPrefixedText() . '|' . $userTitle->getText() . ']]';
 806                         $expirestr = $u->getId() ? 'indefinite' : '1 week';
 807                         $expiry = Block::parseExpiryInput( $expirestr );
 808                         $anonOnly = IP::isIPAddress( $u->getName() ) ? 1 : 0;
 809                         // Create the block
 810                         $block = new Block( $u->getName(), // victim
 811                                 $u->getId(), // uid
 812                                 $wgUser->getId(), // blocker
 813                                 $reason, // comment
 814                                 wfTimestampNow(), // block time
 815                                 0, // auto ?
 816                                 $expiry, // duration
 817                                 $anonOnly, // anononly?
 818                                 1, // block account creation?
 819                                 1, // autoblocking?
 820                                 0, // suppress name?
 821                                 0 // block from sending email?
 822                         );
 823                         $oldblock = Block::newFromDB( $u->getName(), $u->getId() );
 824                         if( !$oldblock ) {
 825                                 $block->insert();
 826                                 # Prepare log parameters
 827                                 $logParams = array();
 828                                 $logParams[] = $expirestr;
 829                                 if( $anonOnly ) {
 830                                         $logParams[] = 'anononly';
 831                                 }
 832                                 $logParams[] = 'nocreate';
 833                                 # Add log entry
 834                                 $log->addEntry( 'block', $userTitle, $reason, $logParams );
 835                         }
 836                         # Tag userpage! (check length to avoid mistakes)
 837                         if( strlen( $tag ) > 2 ) {
 838                                 $userpage->doEdit( $tag, $reason, EDIT_MINOR );
 839                         }
 840                         if( strlen( $talkTag ) > 2 ) {
 841                                 $usertalk->doEdit( $talkTag, $reason, EDIT_MINOR );
 842                         }
 843                 }
 844                 return $safeUsers;
 845         }
 846 }