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Diffstat (limited to 'includes/specials/SpecialBlock.php')
| -rw-r--r-- | includes/specials/SpecialBlock.php | 855 |
1 files changed, 855 insertions, 0 deletions
diff --git a/includes/specials/SpecialBlock.php b/includes/specials/SpecialBlock.php new file mode 100644 index 00000000..f1fe8386 --- /dev/null +++ b/includes/specials/SpecialBlock.php @@ -0,0 +1,855 @@ +<?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 SpecialBlock extends SpecialPage { + + /** The maximum number of edits a user can have and still be hidden + * TODO: config setting? */ + const HIDEUSER_CONTRIBLIMIT = 1000; + + /** @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( 'Block', 'block' ); + } + + public function execute( $par ) { + global $wgUser, $wgOut, $wgRequest; + + # Permission check + if( !$this->userCanExecute( $wgUser ) ) { + $this->displayRestrictionError(); + return; + } + + # Can't block when the database is locked + if( wfReadOnly() ) { + throw new ReadOnlyError; + } + + # 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 + list( $this->target, $this->type ) = self::getTargetAndType( $par, $wgRequest ); + 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( $wgRequest->getVal( 'wpPreviousTarget' ) ); + $this->requestedHideUser = $wgRequest->getBool( 'wpHideUser' ); + + # bug 15810: blocked admins should have limited access here + $status = self::checkUnblockSelf( $this->target ); + if ( $status !== true ) { + throw new ErrorPageError( 'badaccess', $status ); + } + + $wgOut->setPageTitle( wfMsg( 'blockip-title' ) ); + $wgOut->addModules( 'mediawiki.special', 'mediawiki.special.block' ); + + $out = $this->getOutput(); + $out->setPageTitle( wfMsg( 'blockip-title' ) ); + $out->addModules( array( 'mediawiki.special', 'mediawiki.special.block' ) ); + + $fields = $this->getFormFields(); + $this->maybeAlterFormDefaults( $fields ); + + $form = new HTMLForm( $fields, $this->getContext() ); + $form->setWrapperLegend( wfMsg( 'blockip-legend' ) ); + $form->setSubmitCallback( array( __CLASS__, 'processForm' ) ); + + $t = $this->alreadyBlocked + ? wfMsg( 'ipb-change-block' ) + : wfMsg( 'ipbsubmit' ); + $form->setSubmitText( $t ); + + $this->doPreText( $form ); + $this->doHeadertext( $form ); + $this->doPostText( $form ); + + if( $form->show() ){ + $wgOut->setPageTitle( wfMsg( 'blockipsuccesssub' ) ); + $wgOut->addWikiMsg( 'blockipsuccesstext', $this->target ); + } + } + + /** + * Get the HTMLForm descriptor array for the block form + * @return Array + */ + protected static function getFormFields(){ + global $wgUser, $wgBlockAllowsUTEdit; + + $a = array( + 'Target' => array( + 'type' => 'text', + 'label-message' => 'ipadressorusername', + 'tabindex' => '1', + 'id' => 'mw-bi-target', + 'size' => '45', + 'required' => true, + 'validation-callback' => array( __CLASS__, 'validateTargetField' ), + ), + 'Expiry' => array( + 'type' => !count( self::getSuggestedDurations() ) ? 'text' : 'selectorother', + 'label-message' => 'ipbexpiry', + 'required' => true, + 'tabindex' => '2', + 'options' => self::getSuggestedDurations(), + 'other' => wfMsg( 'ipbother' ), + ), + 'Reason' => array( + 'type' => 'selectandother', + 'label-message' => 'ipbreason', + 'options-message' => 'ipbreason-dropdown', + ), + 'CreateAccount' => array( + 'type' => 'check', + 'label-message' => 'ipbcreateaccount', + 'default' => true, + ), + ); + + if( self::canBlockEmail( $wgUser ) ) { + $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( $wgUser->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( $wgUser->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', + ); + + return $a; + } + + /** + * If the user has already been blocked with similar settings, load that block + * and change the defaults for the form fields to match the existing settings. + * @param &$fields Array HTMLForm descriptor array + * @return Bool whether fields were altered (that is, whether the target is + * already blocked) + */ + protected function maybeAlterFormDefaults( &$fields ){ + global $wgRequest, $wgUser; + + # This will be overwritten by request data + $fields['Target']['default'] = (string)$this->target; + + # This won't be + $fields['PreviousTarget']['default'] = (string)$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' ); + } + $fields['Reason']['default'] = $block->mReason; + + if( $wgRequest->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'] = 'indefinite'; + } else { + $fields['Expiry']['default'] = wfTimestamp( TS_RFC2822, $block->mExpiry ); + } + + $this->alreadyBlocked = true; + $this->preErrors[] = array( 'ipb-needreblock', (string)$block->getTarget() ); + } + + # We always need confirmation to do HideUser + if( $this->requestedHideUser ){ + $fields['Confirm']['type'] = 'check'; + unset( $fields['Confirm']['default'] ); + $this->preErrors[] = 'ipb-confirmhideuser'; + } + + # Or if the user is trying to block themselves + if( (string)$this->target === $wgUser->getName() ){ + $fields['Confirm']['type'] = 'check'; + unset( $fields['Confirm']['default'] ); + $this->preErrors[] = 'ipb-blockingself'; + } + } + + /** + * Add header elements like block log entries, etc. + * @param $form HTMLForm + * @return void + */ + protected function doPreText( HTMLForm &$form ){ + $form->addPreText( wfMsgExt( '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(), + wfMsgExt( 'ipb-otherblocks-header', 'parseinline', count( $otherBlockMessages ) ) + ) . "\n"; + $list = ''; + foreach( $otherBlockMessages as $link ) { + $list .= Html::rawElement( 'li', array(), $link ) . "\n"; + } + $s .= Html::rawElement( + 'ul', + array( 'class' => 'mw-blockip-alreadyblocked' ), + $list + ) . "\n"; + $form->addPreText( $s ); + } + } + } + + /** + * Add header text inside the form, just underneath where the errors would go + * @param $form HTMLForm + * @return void + */ + protected function doHeaderText( HTMLForm &$form ){ + global $wgRequest; + # Don't need to do anything if the form has been posted + if( !$wgRequest->wasPosted() && $this->preErrors ){ + $s = HTMLForm::formatErrors( $this->preErrors ); + if( $s ){ + $form->addHeaderText( Html::rawElement( + 'div', + array( 'class' => 'error' ), + $s + ) ); + } + } + } + + /** + * Add footer elements to the form + * @param $form HTMLForm + * @return void + */ + protected function doPostText( HTMLForm &$form ){ + global $wgUser, $wgLang; + + # Link to the user's contributions, if applicable + if( $this->target instanceof User ){ + $contribsPage = SpecialPage::getTitleFor( 'Contributions', $this->target->getName() ); + $links[] = Linker::link( + $contribsPage, + wfMsgExt( 'ipb-blocklist-contribs', 'escape', $this->target->getName() ) + ); + } + + # Link to unblock the specified user, or to a blank unblock form + if( $this->target instanceof User ) { + $message = wfMsgExt( 'ipb-unblock-addr', array( 'parseinline' ), $this->target->getName() ); + $list = SpecialPage::getTitleFor( 'Unblock', $this->target->getName() ); + } else { + $message = wfMsgExt( 'ipb-unblock', array( 'parseinline' ) ); + $list = SpecialPage::getTitleFor( 'Unblock' ); + } + $links[] = Linker::linkKnown( $list, $message, array() ); + + # Link to the block list + $links[] = Linker::linkKnown( + SpecialPage::getTitleFor( 'BlockList' ), + wfMsg( 'ipb-blocklist' ) + ); + + # Link to edit the block dropdown reasons, if applicable + if ( $wgUser->isAllowed( 'editinterface' ) ) { + $links[] = Linker::link( + Title::makeTitle( NS_MEDIAWIKI, 'Ipbreason-dropdown' ), + wfMsgHtml( 'ipb-edit-dropdown' ), + array(), + array( 'action' => 'edit' ) + ); + } + + $form->addPostText( Html::rawElement( + 'p', + array( 'class' => 'mw-ipb-conveniencelinks' ), + $wgLang->pipeList( $links ) + ) ); + + if( $this->target instanceof User ){ + # Get relevant extracts from the block and suppression logs, if possible + $userpage = $this->target->getUserPage(); + $out = ''; + + LogEventsList::showLogExtract( + $out, + 'block', + $userpage->getPrefixedText(), + '', + array( + 'lim' => 10, + 'msgKey' => array( 'blocklog-showlog', $userpage->getText() ), + 'showIfEmpty' => false + ) + ); + $form->addPostText( $out ); + + # Add suppression block entries if allowed + if( $wgUser->isAllowed( 'suppressionlog' ) ) { + LogEventsList::showLogExtract( + $out, + 'suppress', + $userpage->getPrefixedText(), + '', + array( + 'lim' => 10, + 'conds' => array( 'log_action' => array( 'block', 'reblock', 'unblock' ) ), + 'msgKey' => array( 'blocklog-showsuppresslog', $userpage->getText() ), + 'showIfEmpty' => false + ) + ); + $form->addPostText( $out ); + } + } + } + + /** + * Determine the target of the block, and the type of target + * TODO: should be in Block.php? + * @param $par String subpage parameter passed to setup, or data value from + * the HTMLForm + * @param $request WebRequest optionally try and get data from a request too + * @return void + */ + 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 + * @return Message + */ + public static function validateTargetField( $value, $alldata = null ) { + global $wgBlockCIDRLimit; + + list( $target, $type ) = self::getTargetAndType( $value ); + + if( $type == Block::TYPE_USER ){ + # TODO: why do we not have a User->exists() method? + if( !$target->getId() ){ + return wfMessage( 'nosuchusershort', + wfEscapeWikiText( $target->getName() ) ); + } + + $status = self::checkUnblockSelf( $target ); + if ( $status !== true ) { + return wfMessage( 'badaccess', $status ); + } + + } 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 + return wfMessage( 'range_block_disabled' ); + } + + if( ( IP::isIPv4( $ip ) && $range > 32 ) + || ( IP::isIPv6( $ip ) && $range > 128 ) ) + { + # Dodgy range + return wfMessage( 'ip_range_invalid' ); + } + + if( IP::isIPv4( $ip ) && $range < $wgBlockCIDRLimit['IPv4'] ) { + return wfMessage( 'ip_range_toolarge', $wgBlockCIDRLimit['IPv4'] ); + } + + if( IP::isIPv6( $ip ) && $range < $wgBlockCIDRLimit['IPv6'] ) { + return wfMessage( 'ip_range_toolarge', $wgBlockCIDRLimit['IPv6'] ); + } + + } elseif( $type == Block::TYPE_IP ){ + # All is well + + } else { + return wfMessage( 'badipaddress' ); + } + + return true; + } + + /** + * Given the form data, actually implement a block + * @param $data Array + * @return Bool|String + */ + public static function processForm( array $data ){ + global $wgUser, $wgBlockAllowsUTEdit; + + // 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 ); + + list( $target, $type ) = self::getTargetAndType( $data['Target'] ); + 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 + if( $target === $wgUser->getName() && + ( $data['PreviousTarget'] !== $data['Target'] || !$data['Confirm'] ) ) + { + return array( 'ipb-blockingself' ); + } + + } 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( $data['HideUser'] ) { + if( !$wgUser->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( $user->getEditCount() > self::HIDEUSER_CONTRIBLIMIT ) { + # Typically, the user should have a handful of edits. + # Disallow hiding users with many edits for performance. + return array( 'ipb_hide_invalid' ); + + } elseif( !$data['Confirm'] ){ + return array( 'ipb-confirmhideuser' ); + } + } + + # Create block object. + $block = new Block(); + $block->setTarget( $target ); + $block->setBlocker( $wgUser ); + $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 = $data['HideUser']; + + if( !wfRunHooks( 'BlockIp', array( &$block, &$wgUser ) ) ) { + return array( 'hookaborted' ); + } + + # Try to insert block. Is there a conflicting block? + $status = $block->insert(); + if( !$status ) { + # Show form unless the user is already aware of this... + if( !$data['Confirm'] || ( array_key_exists( 'PreviousTarget', $data ) + && $data['PreviousTarget'] !== $target ) ) + { + 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( $currentBlock->mHideName && !$wgUser->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, $wgUser ) ); + + # Set *_deleted fields if requested + if( $data['HideUser'] ) { + RevisionDeleteUser::suppressUserName( $target, $userId ); + } + + # Can't watch a rangeblock + if( $type != Block::TYPE_RANGE && $data['Watch'] ) { + $wgUser->addWatch( Title::makeTitle( NS_USER, $target ) ); + } + + # 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 + ); + # 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 "**<duration>|<displayname>" 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 $expiry String: 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 + * @return Bool|String true or error message key + */ + public static function checkUnblockSelf( $user ) { + global $wgUser; + if ( is_int( $user ) ) { + $user = User::newFromId( $user ); + } elseif ( is_string( $user ) ) { + $user = User::newFromName( $user ); + } + if( $wgUser->isBlocked() ){ + if( $user instanceof User && $user->getId() == $wgUser->getId() ) { + # User is trying to unblock themselves + if ( $wgUser->isAllowed( 'unblockself' ) ) { + return true; + # User blocked themselves and is now trying to reverse it + } elseif ( $wgUser->blockedBy() === $wgUser->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 $data Array from HTMLForm data + * @param $type Block::TYPE_ constant + * @return array + */ + 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 ){ + $flags[] = 'anononly'; + } + + if( $data['CreateAccount'] ){ + $flags[] = 'nocreate'; + } + + # Same as anononly, this is not displayed when blocking an IP address + if( !$data['AutoBlock'] && $type != Block::TYPE_IP ){ + $flags[] = 'noautoblock'; + } + + if( $data['DisableEmail'] ){ + $flags[] = 'noemail'; + } + + if( $wgBlockAllowsUTEdit && $data['DisableUTEdit'] ){ + $flags[] = 'nousertalk'; + } + + if( $data['HideUser'] ){ + $flags[] = 'hiddenname'; + } + + return implode( ',', $flags ); + } +} + +# BC @since 1.18 +class IPBlockForm extends SpecialBlock {} |