User:Leucosticte/SBB

<?php /** * Implements Special:Block * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file * @ingroup SpecialPage */

/** * A special page that allows users with 'block' right to block users from * editing pages and other actions * * @ingroup SpecialPage */ class SpecialBlockBatch extends FormSpecialPage { /** @var User user to be blocked, as passed either by parameter (url?wpTarget=Foo) * or as subpage (Special:Block/Foo) */ protected $target;

/// @var Block::TYPE_ constant protected $type;

/// @var User|String the previous block target protected $previousTarget;

/// @var Bool whether the previous submission of the form asked for HideUser protected $requestedHideUser;

/// @var Bool protected $alreadyBlocked;

/// @var Array protected $preErrors = array;

public function __construct { parent::__construct( 'BlockBatch', 'blockbatch' ); }

/**	 * Checks that the user can unblock themselves if they are trying to do so	 * * @param User $user * @throws ErrorPageError */	protected function checkExecutePermissions( User $user ) { parent::checkExecutePermissions( $user );

# bug 15810: blocked admins should have limited access here $status = self::checkUnblockSelf( $this->target, $user ); if ( $status !== true ) { throw new ErrorPageError( 'badaccess', $status ); }	}

/**	 * Handle some magic here *	 * @param $par String */	protected function setParameter( $par ) { # Extract variables from the request. Try not to get into a situation where we		# need to extract *every* variable from the form just for processing here, but # there are legitimate uses for some variables $request = $this->getRequest; list( $this->target, $this->type ) = self::getTargetAndType( $par, $request ); if ( $this->target instanceof User ) { # Set the 'relevant user' in the skin, so it displays links like Contributions, # User logs, UserRights, etc.			$this->getSkin->setRelevantUser( $this->target ); }

list( $this->previousTarget, /*...*/ ) = Block::parseTarget( $request->getVal( 'wpPreviousTarget' ) ); $this->requestedHideUser = $request->getBool( 'wpHideUser' ); }

/**	 * Customizes the HTMLForm a bit *	 * @param $form HTMLForm */	protected function alterForm( HTMLForm $form ) { $form->setWrapperLegendMsg( 'blockip-legend' ); $form->setHeaderText( '' ); $form->setSubmitCallback( array( __CLASS__, 'processUIForm' ) );

$msg = $this->alreadyBlocked ? 'ipb-change-block' : 'ipbsubmit'; $form->setSubmitTextMsg( $msg );

# Don't need to do anything if the form has been posted if ( !$this->getRequest->wasPosted && $this->preErrors ) { $s = HTMLForm::formatErrors( $this->preErrors ); if ( $s ) { $form->addHeaderText( Html::rawElement( 'div', array( 'class' => 'error' ), $s ) );			}		}	}

/**	 * Get the HTMLForm descriptor array for the block form * @return Array */	protected function getFormFields { global $wgBlockAllowsUTEdit;

$user = $this->getUser;

$suggestedDurations = self::getSuggestedDurations;

$a = array(			'Target' => array( 'type' => 'textarea', 'label-message' => 'ipadressorusername', 'tabindex' => '1', 'rows' => '32', 'id' => 'mw-bi-target', 'size' => '45', 'autofocus' => true, 'required' => true, 'validation-callback' => array( __CLASS__, 'validateTargetField' ), ),			'Expiry' => array( 'type' => !count( $suggestedDurations ) ? 'text' : 'selectorother', 'label-message' => 'ipbexpiry', 'required' => true, 'tabindex' => '2', 'options' => $suggestedDurations, 'other' => $this->msg( 'ipbother' )->text, 'default' => $this->msg( 'ipb-default-expiry' )->inContentLanguage->text, ),			'Reason' => array( 'type' => 'selectandother', 'label-message' => 'ipbreason', 'options-message' => 'ipbreason-dropdown', ),			'CreateAccount' => array( 'type' => 'check', 'label-message' => 'ipbcreateaccount', 'default' => true, ),		);

if ( self::canBlockEmail( $user ) ) { $a['DisableEmail'] = array(				'type' => 'check',				'label-message' => 'ipbemailban',			); }

if ( $wgBlockAllowsUTEdit ) { $a['DisableUTEdit'] = array(				'type' => 'check',				'label-message' => 'ipb-disableusertalk',				'default' => false,			); }

$a['AutoBlock'] = array(			'type' => 'check',			'label-message' => 'ipbenableautoblock',			'default' => true,		);

# Allow some users to hide name from block log, blocklist and listusers if ( $user->isAllowed( 'hideuser' ) ) { $a['HideUser'] = array(				'type' => 'check',				'label-message' => 'ipbhidename',				'cssclass' => 'mw-block-hideuser',			); }

# Watchlist their user page? (Only if user is logged in) if ( $user->isLoggedIn ) { $a['Watch'] = array(				'type' => 'check',				'label-message' => 'ipbwatchuser',			); }

$a['HardBlock'] = array(			'type' => 'check',			'label-message' => 'ipb-hardblock',			'default' => false,		);

# This is basically a copy of the Target field, but the user can't change it, so we		# can see if the warnings we maybe showed to the user before still apply $a['PreviousTarget'] = array(			'type' => 'hidden',			'default' => false,		);

# We'll turn this into a checkbox if we need to		$a['Confirm'] = array(			'type' => 'hidden',			'default' => '',			'label-message' => 'ipb-confirm',		);

$this->maybeAlterFormDefaults( $a );

// Allow extensions to add more fields wfRunHooks( 'SpecialBlockModifyFormFields', array( $this, &$a ) );

return $a; }

/**	 * If the user has already been blocked with similar settings, load that block * and change the defaults for the form fields to match the existing settings. * @param array $fields HTMLForm descriptor array * @return Bool whether fields were altered (that is, whether the target is	 *    already blocked) */	protected function maybeAlterFormDefaults( &$fields ) { # This will be overwritten by request data $fields['Target']['default'] = (string)$this->target;

# This won't be		$fields['PreviousTarget']['default'] = explode( "\n", (string)$this->target );

$block = Block::newFromTarget( $this->target );

if ( $block instanceof Block && !$block->mAuto # The block exists and isn't an autoblock			&& ( $this->type != Block::TYPE_RANGE # The block isn't a rangeblock || $block->getTarget == $this->target ) # or if it is, the range is what we're about to block		) { $fields['HardBlock']['default'] = $block->isHardblock; $fields['CreateAccount']['default'] = $block->prevents( 'createaccount' ); $fields['AutoBlock']['default'] = $block->isAutoblocking;

if ( isset( $fields['DisableEmail'] ) ) { $fields['DisableEmail']['default'] = $block->prevents( 'sendemail' ); }

if ( isset( $fields['HideUser'] ) ) { $fields['HideUser']['default'] = $block->mHideName; }

if ( isset( $fields['DisableUTEdit'] ) ) { $fields['DisableUTEdit']['default'] = $block->prevents( 'editownusertalk' ); }

// If the username was hidden (ipb_deleted == 1), don't show the reason // unless this user also has rights to hideuser: Bug 35839 if ( !$block->mHideName || $this->getUser->isAllowed( 'hideuser' ) ) { $fields['Reason']['default'] = $block->mReason; } else { $fields['Reason']['default'] = ''; }

if ( $this->getRequest->wasPosted ) { # Ok, so we got a POST submission asking us to reblock a user. So show the # confirm checkbox; the user will only see it if they haven't previously $fields['Confirm']['type'] = 'check'; } else { # We got a target, but it wasn't a POST request, so the user must have gone # to a link like Special:Block/User. We don't need to show the checkbox # as long as they go ahead and block *that* user $fields['Confirm']['default'] = 1; }

if ( $block->mExpiry == 'infinity' ) { $fields['Expiry']['default'] = 'infinite'; } else { $fields['Expiry']['default'] = wfTimestamp( TS_RFC2822, $block->mExpiry ); }

$this->alreadyBlocked = true; $this->preErrors[] = array( 'ipb-needreblock', wfEscapeWikiText( (string)$block->getTarget ) ); }

# We always need confirmation to do HideUser if ( $this->requestedHideUser ) { $fields['Confirm']['type'] = 'check'; unset( $fields['Confirm']['default'] ); $this->preErrors[] = array( 'ipb-confirmhideuser', 'ipb-confirmaction' ); }

# Or if the user is trying to block themselves if ( (string)$this->target === $this->getUser->getName ) { $fields['Confirm']['type'] = 'check'; unset( $fields['Confirm']['default'] ); $this->preErrors[] = array( 'ipb-blockingself', 'ipb-confirmaction' ); }	}

/**	 * Add header elements like block log entries, etc.	 * @return String */	protected function preText { $this->getOutput->addModules( 'mediawiki.special.block' );

$text = $this->msg( 'blockiptext' )->parse;

$otherBlockMessages = array; if ( $this->target !== null ) { # Get other blocks, i.e. from GlobalBlocking or TorBlock extension wfRunHooks( 'OtherBlockLogLink', array( &$otherBlockMessages, $this->target ) );

if ( count( $otherBlockMessages ) ) { $s = Html::rawElement(					'h2',					array,					$this->msg( 'ipb-otherblocks-header', count( $otherBlockMessages ) )->parse				). "\n";

$list = '';

foreach ( $otherBlockMessages as $link ) { $list .= Html::rawElement( 'li', array, $link ). "\n"; }

$s .= Html::rawElement(					'ul',					array( 'class' => 'mw-blockip-alreadyblocked' ),					$list				). "\n";

$text .= $s; }		}

return $text; }

/**	 * Add footer elements to the form * @return string */	protected function postText { $links = array;

# Link to the user's contributions, if applicable if ( $this->target instanceof User ) { $contribsPage = SpecialPage::getTitleFor( 'Contributions', $this->target->getName ); $links[] = Linker::link(				$contribsPage,				$this->msg( 'ipb-blocklist-contribs', $this->target->getName )->escaped			); }

# Link to unblock the specified user, or to a blank unblock form if ( $this->target instanceof User ) { $message = $this->msg( 'ipb-unblock-addr', wfEscapeWikiText( $this->target->getName ) )->parse; $list = SpecialPage::getTitleFor( 'Unblock', $this->target->getName ); } else { $message = $this->msg( 'ipb-unblock' )->parse; $list = SpecialPage::getTitleFor( 'Unblock' ); }		$links[] = Linker::linkKnown( $list, $message, array );

# Link to the block list $links[] = Linker::linkKnown(			SpecialPage::getTitleFor( 'BlockList' ),			$this->msg( 'ipb-blocklist' )->escaped		);

$user = $this->getUser;

# Link to edit the block dropdown reasons, if applicable if ( $user->isAllowed( 'editinterface' ) ) { $links[] = Linker::link(				Title::makeTitle( NS_MEDIAWIKI, 'Ipbreason-dropdown' ),				$this->msg( 'ipb-edit-dropdown' )->escaped,				array,				array( 'action' => 'edit' )			); }

$text = Html::rawElement(			'p',			array( 'class' => 'mw-ipb-conveniencelinks' ),			$this->getLanguage->pipeList( $links )		);

$userTitle = self::getTargetUserTitle( $this->target ); if ( $userTitle ) { # Get relevant extracts from the block and suppression logs, if possible $out = '';

LogEventsList::showLogExtract(				$out,				'block',				$userTitle,				'',				array( 'lim' => 10, 'msgKey' => array( 'blocklog-showlog', $userTitle->getText ), 'showIfEmpty' => false )			);			$text .= $out;

# Add suppression block entries if allowed if ( $user->isAllowed( 'suppressionlog' ) ) { LogEventsList::showLogExtract(					$out,					'suppress',					$userTitle,					'',					array( 'lim' => 10, 'conds' => array( 'log_action' => array( 'block', 'reblock', 'unblock' ) ), 'msgKey' => array( 'blocklog-showsuppresslog', $userTitle->getText ), 'showIfEmpty' => false )				);

$text .= $out; }		}

return $text; }

/**	 * Get a user page target for things like logs. * This handles account and IP range targets. * @param $target User|string * @return Title|null */	protected static function getTargetUserTitle( $target ) { if ( $target instanceof User ) { return $target->getUserPage; } elseif ( IP::isIPAddress( $target ) ) { return Title::makeTitleSafe( NS_USER, $target ); }

return null; }

/**	 * Determine the target of the block, and the type of target * TODO: should be in Block.php? * @param string $par subpage parameter passed to setup, or data value from *    the HTMLForm * @param $request WebRequest optionally try and get data from a request too * @return array( User|string|null, Block::TYPE_ constant|null ) */	public static function getTargetAndType( $par, WebRequest $request = null ) { $i = 0; $target = null;

while ( true ) { switch ( $i++ ) { case 0: # The HTMLForm will check wpTarget first and only if it doesn't get # a value use the default, which will be generated from the options # below; so this has to have a higher precedence here than $par, or # we could end up with different values in $this->target and the HTMLForm! if ( $request instanceof WebRequest ) { $target = $request->getText( 'wpTarget', null ); }					break; case 1: $target = $par; break; case 2: if ( $request instanceof WebRequest ) { $target = $request->getText( 'ip', null ); }					break; case 3: # B/C @since 1.18 if ( $request instanceof WebRequest ) { $target = $request->getText( 'wpBlockAddress', null ); }					break; case 4: break 2; }

list( $target, $type ) = Block::parseTarget( $target );

if ( $type !== null ) { return array( $target, $type ); }		}

return array( null, null ); }

/**	 * HTMLForm field validation-callback for Target field. * @since 1.18 * @param $value String * @param $alldata Array * @param $form HTMLForm * @return Message */	public static function validateTargetField( $value, $alldata, $form ) { foreach ( explode( "\n", $value ) as $thisValue ) { $status = self::validateTarget( $thisValue, $form->getUser ); if ( !$status->isOK ) { $errors = $status->getErrorsArray;

return call_user_func_array( array( $form, 'msg' ), $errors[0] ); }		}		return true; }

/**	 * Validate a block target. *	 * @since 1.21 * @param string $value Block target to check * @param User $user Performer of the block * @return Status */	public static function validateTarget( $value, User $user ) { global $wgBlockCIDRLimit;

/** @var User $target */ list( $target, $type ) = self::getTargetAndType( $value ); $status = Status::newGood( $target );

if ( $type == Block::TYPE_USER ) { if ( $target->isAnon ) { $status->fatal(					'nosuchusershort',					wfEscapeWikiText( $target->getName )				); }

$unblockStatus = self::checkUnblockSelf( $target, $user ); if ( $unblockStatus !== true ) { $status->fatal( 'badaccess', $unblockStatus ); }		} elseif ( $type == Block::TYPE_RANGE ) { list( $ip, $range ) = explode( '/', $target, 2 );

if (				( IP::isIPv4( $ip ) && $wgBlockCIDRLimit['IPv4'] == 32 ) ||				( IP::isIPv6( $ip ) && $wgBlockCIDRLimit['IPv6'] == 128 )			) { // Range block effectively disabled $status->fatal( 'range_block_disabled' ); }

if (				( IP::isIPv4( $ip ) && $range > 32 ) ||				( IP::isIPv6( $ip ) && $range > 128 )			) { // Dodgy range $status->fatal( 'ip_range_invalid' ); }

if ( IP::isIPv4( $ip ) && $range < $wgBlockCIDRLimit['IPv4'] ) { $status->fatal( 'ip_range_toolarge', $wgBlockCIDRLimit['IPv4'] ); }

if ( IP::isIPv6( $ip ) && $range < $wgBlockCIDRLimit['IPv6'] ) { $status->fatal( 'ip_range_toolarge', $wgBlockCIDRLimit['IPv6'] ); }		} elseif ( $type == Block::TYPE_IP ) { # All is well } else { $status->fatal( 'badipaddress' ); }

return $status; }

/**	 * Submit callback for an HTMLForm object, will simply pass * @param $data array * @param $form HTMLForm * @return Bool|String */	public static function processUIForm( array $data, HTMLForm $form ) { return self::processForm( $data, $form->getContext ); }

/**	 * Given the form data, actually implement a block * @param $data Array * @param $context IContextSource * @return Bool|String */	public static function processForm( array $data, IContextSource $context ) { global $wgBlockAllowsUTEdit, $wgHideUserContribLimit;

$performer = $context->getUser;

// Handled by field validator callback // self::validateTargetField( $data['Target'] );

# This might have been a hidden field or a checkbox, so interesting data # can come from it		$data['Confirm'] = !in_array( $data['Confirm'], array( '', '0', null, false ), true );

foreach( explode( "\n", $data['Target'] ) as $thisTarget ) { /** @var User $target */ list( $target, $type ) = self::getTargetAndType( $thisTarget ); if ( $type == Block::TYPE_USER ) { $user = $target; $target = $user->getName; $userId = $user->getId;

# Give admins a heads-up before they go and block themselves. Much messier # to do this for IPs, but it's pretty unlikely they'd ever get the 'block' # permission anyway, although the code does allow for it. # Note: Important to use $target instead of $data['Target'] # since both $data['PreviousTarget'] and $target are normalized # but $data['target'] gets overriden by (non-normalized) request variable # from previous request. if ( $target === $performer->getName &&					( $data['PreviousTarget'] !== $target || !$data['Confirm'] )				) { return array( 'ipb-blockingself', 'ipb-confirmaction' ); }			} elseif ( $type == Block::TYPE_RANGE ) { $userId = 0; } elseif ( $type == Block::TYPE_IP ) { $target = $target->getName; $userId = 0; } else { # This should have been caught in the form field validation return array( 'badipaddress' ); }

if ( ( strlen( $data['Expiry'] ) == 0 ) || ( strlen( $data['Expiry'] ) > 50 )				|| !self::parseExpiryInput( $data['Expiry'] )			) { return array( 'ipb_expiry_invalid' ); }

if ( !isset( $data['DisableEmail'] ) ) { $data['DisableEmail'] = false; }

# If the user has done the form 'properly', they won't even have been given the # option to suppress-block unless they have the 'hideuser' permission if ( !isset( $data['HideUser'] ) ) { $data['HideUser'] = false; }

if ( $data['HideUser'] ) { if ( !$performer->isAllowed( 'hideuser' ) ) { # this codepath is unreachable except by a malicious user spoofing forms, # or by race conditions (user has oversight and sysop, loads block form,					# and is de-oversighted before submission); so need to fail completely # rather than just silently disable hiding return array( 'badaccess-group0' ); }

# Recheck params here... if ( $type != Block::TYPE_USER ) { $data['HideUser'] = false; # IP users should not be hidden } elseif ( !in_array( $data['Expiry'], array( 'infinite', 'infinity', 'indefinite' ) ) ) { # Bad expiry. return array( 'ipb_expiry_temp' ); } elseif ( $wgHideUserContribLimit !== false					&& $user->getEditCount > $wgHideUserContribLimit				) { # Typically, the user should have a handful of edits. # Disallow hiding users with many edits for performance. return array( array( 'ipb_hide_invalid', Message::numParam( $wgHideUserContribLimit ) ) ); } elseif ( !$data['Confirm'] ) { return array( 'ipb-confirmhideuser', 'ipb-confirmaction' ); }			}

# Create block object. $block = new Block; $block->setTarget( $target ); $block->setBlocker( $performer ); $block->mReason = $data['Reason'][0]; $block->mExpiry = self::parseExpiryInput( $data['Expiry'] ); $block->prevents( 'createaccount', $data['CreateAccount'] ); $block->prevents( 'editownusertalk', ( !$wgBlockAllowsUTEdit || $data['DisableUTEdit'] ) ); $block->prevents( 'sendemail', $data['DisableEmail'] ); $block->isHardblock( $data['HardBlock'] ); $block->isAutoblocking( $data['AutoBlock'] ); $block->mHideName = $data['HideUser'];

$reason = array( 'hookaborted' ); if ( !wfRunHooks( 'BlockIp', array( &$block, &$performer, &$reason ) ) ) { return $reason; }

# Try to insert block. Is there a conflicting block? $status = $block->insert; if ( !$status ) { # Indicates whether the user is confirming the block and is aware of				# the conflict (did not change the block target in the meantime) $blockNotConfirmed = !$data['Confirm'] || ( array_key_exists( 'PreviousTarget', $data )					&& $data['PreviousTarget'] !== $target );

# Special case for API - bug 32434 $reblockNotAllowed = ( array_key_exists( 'Reblock', $data ) && !$data['Reblock'] );

# Show form unless the user is already aware of this... if ( $blockNotConfirmed || $reblockNotAllowed ) { return array( array( 'ipb_already_blocked', $block->getTarget ) ); # Otherwise, try to update the block... } else { # This returns direct blocks before autoblocks/rangeblocks, since we should # be sure the user is blocked by now it should work for our purposes $currentBlock = Block::newFromTarget( $target );

if ( $block->equals( $currentBlock ) ) { return array( array( 'ipb_already_blocked', $block->getTarget ) ); }

# If the name was hidden and the blocking user cannot hide # names, then don't allow any block changes... if ( $currentBlock->mHideName && !$performer->isAllowed( 'hideuser' ) ) { return array( 'cant-see-hidden-user' ); }

$currentBlock->delete; $status = $block->insert; $logaction = 'reblock';

# Unset _deleted fields if requested if ( $currentBlock->mHideName && !$data['HideUser'] ) { RevisionDeleteUser::unsuppressUserName( $target, $userId ); }

# If hiding/unhiding a name, this should go in the private logs if ( (bool)$currentBlock->mHideName ) { $data['HideUser'] = true; }				}			} else { $logaction = 'block'; }

wfRunHooks( 'BlockIpComplete', array( $block, $performer ) );

# Set *_deleted fields if requested if ( $data['HideUser'] ) { RevisionDeleteUser::suppressUserName( $target, $userId ); }

# Can't watch a rangeblock if ( $type != Block::TYPE_RANGE && $data['Watch'] ) { WatchAction::doWatch( Title::makeTitle( NS_USER, $target ), $performer, WatchedItem::IGNORE_USER_RIGHTS ); }

# Block constructor sanitizes certain block options on insert $data['BlockEmail'] = $block->prevents( 'sendemail' ); $data['AutoBlock'] = $block->isAutoblocking;

# Prepare log parameters $logParams = array; $logParams[] = $data['Expiry']; $logParams[] = self::blockLogFlags( $data, $type );

# Make log entry, if the name is hidden, put it in the oversight log $log_type = $data['HideUser'] ? 'suppress' : 'block'; $log = new LogPage( $log_type ); $log_id = $log->addEntry(				$logaction,				Title::makeTitle( NS_USER, $target ),				$data['Reason'][0],				$logParams,				$performer			); # Relate log ID to block IDs (bug 25763) $blockIds = array_merge( array( $status['id'] ), $status['autoIds'] ); $log->addRelations( 'ipb_id', $blockIds, $log_id );

# Report to the user }		return true; }

/**	 * Get an array of suggested block durations from MediaWiki:Ipboptions * @todo FIXME: This uses a rather odd syntax for the options, should it be converted *    to the standard "** | " format? * @param $lang Language|null the language to get the durations in, or null to use *    the wiki's content language * @return Array */	public static function getSuggestedDurations( $lang = null ) { $a = array; $msg = $lang === null ? wfMessage( 'ipboptions' )->inContentLanguage->text : wfMessage( 'ipboptions' )->inLanguage( $lang )->text;

if ( $msg == '-' ) { return array; }

foreach ( explode( ',', $msg ) as $option ) { if ( strpos( $option, ':' ) === false ) { $option = "$option:$option"; }

list( $show, $value ) = explode( ':', $option ); $a[htmlspecialchars( $show )] = htmlspecialchars( $value ); }

return $a; }

/**	 * Convert a submitted expiry time, which may be relative ("2 weeks", etc) or absolute * ("24 May 2034", etc), into an absolute timestamp we can put into the database. * @param string $expiry whatever was typed into the form * @return String: timestamp or "infinity" string for the DB implementation */	public static function parseExpiryInput( $expiry ) { static $infinity; if ( $infinity == null ) { $infinity = wfGetDB( DB_SLAVE )->getInfinity; }

if ( $expiry == 'infinite' || $expiry == 'indefinite' ) { $expiry = $infinity; } else { $expiry = strtotime( $expiry );

if ( $expiry < 0 || $expiry === false ) { return false; }

$expiry = wfTimestamp( TS_MW, $expiry ); }

return $expiry; }

/**	 * Can we do an email block? * @param $user User: the sysop wanting to make a block * @return Boolean */	public static function canBlockEmail( $user ) { global $wgEnableUserEmail, $wgSysopEmailBans;

return ( $wgEnableUserEmail && $wgSysopEmailBans && $user->isAllowed( 'blockemail' ) ); }

/**	 * bug 15810: blocked admins should not be able to block/unblock * others, and probably shouldn't be able to unblock themselves * either. * @param $user User|Int|String * @param $performer User user doing the request * @return Bool|String true or error message key */	public static function checkUnblockSelf( $user, User $performer ) { if ( is_int( $user ) ) { $user = User::newFromId( $user ); } elseif ( is_string( $user ) ) { $user = User::newFromName( $user ); }

if ( $performer->isBlocked ) { if ( $user instanceof User && $user->getId == $performer->getId ) { # User is trying to unblock themselves if ( $performer->isAllowed( 'unblockself' ) ) { return true; # User blocked themselves and is now trying to reverse it				} elseif ( $performer->blockedBy === $performer->getName ) { return true; } else { return 'ipbnounblockself'; }			} else { # User is trying to block/unblock someone else return 'ipbblocked'; }		} else { return true; }	}

/**	 * Return a comma-delimited list of "flags" to be passed to the log * reader for this block, to provide more information in the logs * @param array $data from HTMLForm data * @param $type Block::TYPE_ constant (USER, RANGE, or IP) * @return string */	protected static function blockLogFlags( array $data, $type ) { global $wgBlockAllowsUTEdit; $flags = array;

# when blocking a user the option 'anononly' is not available/has no effect # -> do not write this into log if ( !$data['HardBlock'] && $type != Block::TYPE_USER ) { // For grepping: message block-log-flags-anononly $flags[] = 'anononly'; }

if ( $data['CreateAccount'] ) { // For grepping: message block-log-flags-nocreate $flags[] = 'nocreate'; }

# Same as anononly, this is not displayed when blocking an IP address if ( !$data['AutoBlock'] && $type == Block::TYPE_USER ) { // For grepping: message block-log-flags-noautoblock $flags[] = 'noautoblock'; }

if ( $data['DisableEmail'] ) { // For grepping: message block-log-flags-noemail $flags[] = 'noemail'; }

if ( $wgBlockAllowsUTEdit && $data['DisableUTEdit'] ) { // For grepping: message block-log-flags-nousertalk $flags[] = 'nousertalk'; }

if ( $data['HideUser'] ) { // For grepping: message block-log-flags-hiddenname $flags[] = 'hiddenname'; }

return implode( ',', $flags ); }

/**	 * Process the form on POST submission. * @param $data Array * @return Bool|Array true for success, false for didn't-try, array of errors on failure */	public function onSubmit( array $data ) { // This isn't used since we need that HTMLForm that's passed in the // second parameter. See alterForm for the real function }

/**	 * Do something exciting on successful processing of the form, most likely to show a	 * confirmation message */	public function onSuccess { $out = $this->getOutput; $out->setPageTitle( $this->msg( 'blockipsuccesssub' ) ); $out->addWikiMsg( 'blockipsuccesstext', wfEscapeWikiText( $this->target ) ); }

protected function getGroupName { return 'users'; } }


 * 1) BC @since 1.18
 * 2) class IPBlockForm extends SpecialBlock {
 * }