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(); $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' => $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 ); 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 ) { # 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'] = $block->prevents( 'editownusertalk' ); } // If the username was hidden (ipb_deleted == 1), don't show the reason // unless this user also has rights to hideuser: Bug 35839 if ( !$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'] ); $this->preErrors[] = 'ipb-confirmhideuser'; } # Or if the user is trying to block themselves if ( (string)$this->target === $this->getUser()->getName() ) { $fields['Confirm']['type'] = 'check'; unset( $fields['Confirm']['default'] ); $this->preErrors[] = 'ipb-blockingself'; } } /** * 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 $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 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 ) { 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 $form->msg( 'nosuchusershort', wfEscapeWikiText( $target->getName() ) ); } $status = self::checkUnblockSelf( $target, $form->getUser() ); if ( $status !== true ) { return $form->msg( '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 $form->msg( 'range_block_disabled' ); } if ( ( IP::isIPv4( $ip ) && $range > 32 ) || ( IP::isIPv6( $ip ) && $range > 128 ) ) { # Dodgy range return $form->msg( 'ip_range_invalid' ); } if ( IP::isIPv4( $ip ) && $range < $wgBlockCIDRLimit['IPv4'] ) { return $form->msg( 'ip_range_toolarge', $wgBlockCIDRLimit['IPv4'] ); } if ( IP::isIPv6( $ip ) && $range < $wgBlockCIDRLimit['IPv6'] ) { return $form->msg( 'ip_range_toolarge', $wgBlockCIDRLimit['IPv6'] ); } } elseif ( $type == Block::TYPE_IP ) { # All is well } else { return $form->msg( 'badipaddress' ); } return true; } /** * 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; $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 ); 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. # 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' ); } } 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 ( $user->getEditCount() > self::HIDEUSER_CONTRIBLIMIT ) { # Typically, the user should have a handful of edits. # Disallow hiding users with many edits for performance. return array( 'ipb_hide_invalid' ); } elseif ( !$data['Confirm'] ) { return array( 'ipb-confirmhideuser' ); } } # Create block object. $block = new Block(); $block->setTarget( $target ); $block->setBlocker( $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 = $data['HideUser']; if ( !wfRunHooks( 'BlockIp', array( &$block, &$performer ) ) ) { 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 ( $currentBlock->mHideName && !$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'] ) { $performer->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 "**|" 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 * @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 $data Array 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 ) ); } } # BC @since 1.18 class IPBlockForm extends SpecialBlock {}