Current File : /www/varak.net/wiki.varak.net/includes/Block.php
<?php
/**
* Blocks and bans object
*
* 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
*/
use Wikimedia\Rdbms\Database;
use Wikimedia\Rdbms\IDatabase;
use MediaWiki\MediaWikiServices;
class Block {
/** @var string */
public $mReason;
/** @var string */
public $mTimestamp;
/** @var bool */
public $mAuto;
/** @var string */
public $mExpiry;
/** @var bool */
public $mHideName;
/** @var int */
public $mParentBlockId;
/** @var int */
private $mId;
/** @var bool */
private $mFromMaster;
/** @var bool */
private $mBlockEmail;
/** @var bool */
private $mDisableUsertalk;
/** @var bool */
private $mCreateAccount;
/** @var User|string */
private $target;
/** @var int Hack for foreign blocking (CentralAuth) */
private $forcedTargetID;
/** @var int Block::TYPE_ constant. Can only be USER, IP or RANGE internally */
private $type;
/** @var User */
private $blocker;
/** @var bool */
private $isHardblock;
/** @var bool */
private $isAutoblocking;
/** @var string|null */
private $systemBlockType;
# TYPE constants
const TYPE_USER = 1;
const TYPE_IP = 2;
const TYPE_RANGE = 3;
const TYPE_AUTO = 4;
const TYPE_ID = 5;
/**
* Create a new block with specified parameters on a user, IP or IP range.
*
* @param array $options Parameters of the block:
* address string|User Target user name, User object, IP address or IP range
* user int Override target user ID (for foreign users)
* by int User ID of the blocker
* reason string Reason of the block
* timestamp string The time at which the block comes into effect
* auto bool Is this an automatic block?
* expiry string Timestamp of expiration of the block or 'infinity'
* anonOnly bool Only disallow anonymous actions
* createAccount bool Disallow creation of new accounts
* enableAutoblock bool Enable automatic blocking
* hideName bool Hide the target user name
* blockEmail bool Disallow sending emails
* allowUsertalk bool Allow the target to edit its own talk page
* byText string Username of the blocker (for foreign users)
* systemBlock string Indicate that this block is automatically
* created by MediaWiki rather than being stored
* in the database. Value is a string to return
* from self::getSystemBlockType().
*
* @since 1.26 accepts $options array instead of individual parameters; order
* of parameters above reflects the original order
*/
function __construct( $options = [] ) {
$defaults = [
'address' => '',
'user' => null,
'by' => null,
'reason' => '',
'timestamp' => '',
'auto' => false,
'expiry' => '',
'anonOnly' => false,
'createAccount' => false,
'enableAutoblock' => false,
'hideName' => false,
'blockEmail' => false,
'allowUsertalk' => false,
'byText' => '',
'systemBlock' => null,
];
if ( func_num_args() > 1 || !is_array( $options ) ) {
$options = array_combine(
array_slice( array_keys( $defaults ), 0, func_num_args() ),
func_get_args()
);
wfDeprecated( __METHOD__ . ' with multiple arguments', '1.26' );
}
$options += $defaults;
$this->setTarget( $options['address'] );
if ( $this->target instanceof User && $options['user'] ) {
# Needed for foreign users
$this->forcedTargetID = $options['user'];
}
if ( $options['by'] ) {
# Local user
$this->setBlocker( User::newFromId( $options['by'] ) );
} else {
# Foreign user
$this->setBlocker( $options['byText'] );
}
$this->mReason = $options['reason'];
$this->mTimestamp = wfTimestamp( TS_MW, $options['timestamp'] );
$this->mExpiry = wfGetDB( DB_REPLICA )->decodeExpiry( $options['expiry'] );
# Boolean settings
$this->mAuto = (bool)$options['auto'];
$this->mHideName = (bool)$options['hideName'];
$this->isHardblock( !$options['anonOnly'] );
$this->isAutoblocking( (bool)$options['enableAutoblock'] );
# Prevention measures
$this->prevents( 'sendemail', (bool)$options['blockEmail'] );
$this->prevents( 'editownusertalk', !$options['allowUsertalk'] );
$this->prevents( 'createaccount', (bool)$options['createAccount'] );
$this->mFromMaster = false;
$this->systemBlockType = $options['systemBlock'];
}
/**
* Load a blocked user from their block id.
*
* @param int $id Block id to search for
* @return Block|null
*/
public static function newFromID( $id ) {
$dbr = wfGetDB( DB_REPLICA );
$blockQuery = self::getQueryInfo();
$res = $dbr->selectRow(
$blockQuery['tables'],
$blockQuery['fields'],
[ 'ipb_id' => $id ],
__METHOD__,
[],
$blockQuery['joins']
);
if ( $res ) {
return self::newFromRow( $res );
} else {
return null;
}
}
/**
* Return the list of ipblocks fields that should be selected to create
* a new block.
* @deprecated since 1.31, use self::getQueryInfo() instead.
* @return array
*/
public static function selectFields() {
global $wgActorTableSchemaMigrationStage;
if ( $wgActorTableSchemaMigrationStage & SCHEMA_COMPAT_READ_NEW ) {
// If code is using this instead of self::getQueryInfo(), there's a
// decent chance it's going to try to directly access
// $row->ipb_by or $row->ipb_by_text and we can't give it
// useful values here once those aren't being used anymore.
throw new BadMethodCallException(
'Cannot use ' . __METHOD__
. ' when $wgActorTableSchemaMigrationStage has SCHEMA_COMPAT_READ_NEW'
);
}
wfDeprecated( __METHOD__, '1.31' );
return [
'ipb_id',
'ipb_address',
'ipb_by',
'ipb_by_text',
'ipb_by_actor' => 'NULL',
'ipb_timestamp',
'ipb_auto',
'ipb_anon_only',
'ipb_create_account',
'ipb_enable_autoblock',
'ipb_expiry',
'ipb_deleted',
'ipb_block_email',
'ipb_allow_usertalk',
'ipb_parent_block_id',
] + CommentStore::getStore()->getFields( 'ipb_reason' );
}
/**
* Return the tables, fields, and join conditions to be selected to create
* a new block object.
* @since 1.31
* @return array With three keys:
* - tables: (string[]) to include in the `$table` to `IDatabase->select()`
* - fields: (string[]) to include in the `$vars` to `IDatabase->select()`
* - joins: (array) to include in the `$join_conds` to `IDatabase->select()`
*/
public static function getQueryInfo() {
$commentQuery = CommentStore::getStore()->getJoin( 'ipb_reason' );
$actorQuery = ActorMigration::newMigration()->getJoin( 'ipb_by' );
return [
'tables' => [ 'ipblocks' ] + $commentQuery['tables'] + $actorQuery['tables'],
'fields' => [
'ipb_id',
'ipb_address',
'ipb_timestamp',
'ipb_auto',
'ipb_anon_only',
'ipb_create_account',
'ipb_enable_autoblock',
'ipb_expiry',
'ipb_deleted',
'ipb_block_email',
'ipb_allow_usertalk',
'ipb_parent_block_id',
] + $commentQuery['fields'] + $actorQuery['fields'],
'joins' => $commentQuery['joins'] + $actorQuery['joins'],
];
}
/**
* Check if two blocks are effectively equal. Doesn't check irrelevant things like
* the blocking user or the block timestamp, only things which affect the blocked user
*
* @param Block $block
*
* @return bool
*/
public function equals( Block $block ) {
return (
(string)$this->target == (string)$block->target
&& $this->type == $block->type
&& $this->mAuto == $block->mAuto
&& $this->isHardblock() == $block->isHardblock()
&& $this->prevents( 'createaccount' ) == $block->prevents( 'createaccount' )
&& $this->mExpiry == $block->mExpiry
&& $this->isAutoblocking() == $block->isAutoblocking()
&& $this->mHideName == $block->mHideName
&& $this->prevents( 'sendemail' ) == $block->prevents( 'sendemail' )
&& $this->prevents( 'editownusertalk' ) == $block->prevents( 'editownusertalk' )
&& $this->mReason == $block->mReason
);
}
/**
* Load a block from the database which affects the already-set $this->target:
* 1) A block directly on the given user or IP
* 2) A rangeblock encompassing the given IP (smallest first)
* 3) An autoblock on the given IP
* @param User|string|null $vagueTarget Also search for blocks affecting this target. Doesn't
* make any sense to use TYPE_AUTO / TYPE_ID here. Leave blank to skip IP lookups.
* @throws MWException
* @return bool Whether a relevant block was found
*/
protected function newLoad( $vagueTarget = null ) {
$db = wfGetDB( $this->mFromMaster ? DB_MASTER : DB_REPLICA );
if ( $this->type !== null ) {
$conds = [
'ipb_address' => [ (string)$this->target ],
];
} else {
$conds = [ 'ipb_address' => [] ];
}
# Be aware that the != '' check is explicit, since empty values will be
# passed by some callers (T31116)
if ( $vagueTarget != '' ) {
list( $target, $type ) = self::parseTarget( $vagueTarget );
switch ( $type ) {
case self::TYPE_USER:
# Slightly weird, but who are we to argue?
$conds['ipb_address'][] = (string)$target;
break;
case self::TYPE_IP:
$conds['ipb_address'][] = (string)$target;
$conds[] = self::getRangeCond( IP::toHex( $target ) );
$conds = $db->makeList( $conds, LIST_OR );
break;
case self::TYPE_RANGE:
list( $start, $end ) = IP::parseRange( $target );
$conds['ipb_address'][] = (string)$target;
$conds[] = self::getRangeCond( $start, $end );
$conds = $db->makeList( $conds, LIST_OR );
break;
default:
throw new MWException( "Tried to load block with invalid type" );
}
}
$blockQuery = self::getQueryInfo();
$res = $db->select(
$blockQuery['tables'], $blockQuery['fields'], $conds, __METHOD__, [], $blockQuery['joins']
);
# This result could contain a block on the user, a block on the IP, and a russian-doll
# set of rangeblocks. We want to choose the most specific one, so keep a leader board.
$bestRow = null;
# Lower will be better
$bestBlockScore = 100;
# This is begging for $this = $bestBlock, but that's not allowed in PHP :(
$bestBlockPreventsEdit = null;
foreach ( $res as $row ) {
$block = self::newFromRow( $row );
# Don't use expired blocks
if ( $block->isExpired() ) {
continue;
}
# Don't use anon only blocks on users
if ( $this->type == self::TYPE_USER && !$block->isHardblock() ) {
continue;
}
if ( $block->getType() == self::TYPE_RANGE ) {
# This is the number of bits that are allowed to vary in the block, give
# or take some floating point errors
$end = Wikimedia\base_convert( $block->getRangeEnd(), 16, 10 );
$start = Wikimedia\base_convert( $block->getRangeStart(), 16, 10 );
$size = log( $end - $start + 1, 2 );
# This has the nice property that a /32 block is ranked equally with a
# single-IP block, which is exactly what it is...
$score = self::TYPE_RANGE - 1 + ( $size / 128 );
} else {
$score = $block->getType();
}
if ( $score < $bestBlockScore ) {
$bestBlockScore = $score;
$bestRow = $row;
$bestBlockPreventsEdit = $block->prevents( 'edit' );
}
}
if ( $bestRow !== null ) {
$this->initFromRow( $bestRow );
$this->prevents( 'edit', $bestBlockPreventsEdit );
return true;
} else {
return false;
}
}
/**
* Get a set of SQL conditions which will select rangeblocks encompassing a given range
* @param string $start Hexadecimal IP representation
* @param string|null $end Hexadecimal IP representation, or null to use $start = $end
* @return string
*/
public static function getRangeCond( $start, $end = null ) {
if ( $end === null ) {
$end = $start;
}
# Per T16634, we want to include relevant active rangeblocks; for
# rangeblocks, we want to include larger ranges which enclose the given
# range. We know that all blocks must be smaller than $wgBlockCIDRLimit,
# so we can improve performance by filtering on a LIKE clause
$chunk = self::getIpFragment( $start );
$dbr = wfGetDB( DB_REPLICA );
$like = $dbr->buildLike( $chunk, $dbr->anyString() );
# Fairly hard to make a malicious SQL statement out of hex characters,
# but stranger things have happened...
$safeStart = $dbr->addQuotes( $start );
$safeEnd = $dbr->addQuotes( $end );
return $dbr->makeList(
[
"ipb_range_start $like",
"ipb_range_start <= $safeStart",
"ipb_range_end >= $safeEnd",
],
LIST_AND
);
}
/**
* Get the component of an IP address which is certain to be the same between an IP
* address and a rangeblock containing that IP address.
* @param string $hex Hexadecimal IP representation
* @return string
*/
protected static function getIpFragment( $hex ) {
global $wgBlockCIDRLimit;
if ( substr( $hex, 0, 3 ) == 'v6-' ) {
return 'v6-' . substr( substr( $hex, 3 ), 0, floor( $wgBlockCIDRLimit['IPv6'] / 4 ) );
} else {
return substr( $hex, 0, floor( $wgBlockCIDRLimit['IPv4'] / 4 ) );
}
}
/**
* Given a database row from the ipblocks table, initialize
* member variables
* @param stdClass $row A row from the ipblocks table
*/
protected function initFromRow( $row ) {
$this->setTarget( $row->ipb_address );
$this->setBlocker( User::newFromAnyId(
$row->ipb_by, $row->ipb_by_text, $row->ipb_by_actor ?? null
) );
$this->mTimestamp = wfTimestamp( TS_MW, $row->ipb_timestamp );
$this->mAuto = $row->ipb_auto;
$this->mHideName = $row->ipb_deleted;
$this->mId = (int)$row->ipb_id;
$this->mParentBlockId = $row->ipb_parent_block_id;
// I wish I didn't have to do this
$db = wfGetDB( DB_REPLICA );
$this->mExpiry = $db->decodeExpiry( $row->ipb_expiry );
$this->mReason = CommentStore::getStore()
// Legacy because $row may have come from self::selectFields()
->getCommentLegacy( $db, 'ipb_reason', $row )->text;
$this->isHardblock( !$row->ipb_anon_only );
$this->isAutoblocking( $row->ipb_enable_autoblock );
$this->prevents( 'createaccount', $row->ipb_create_account );
$this->prevents( 'sendemail', $row->ipb_block_email );
$this->prevents( 'editownusertalk', !$row->ipb_allow_usertalk );
}
/**
* Create a new Block object from a database row
* @param stdClass $row Row from the ipblocks table
* @return Block
*/
public static function newFromRow( $row ) {
$block = new Block;
$block->initFromRow( $row );
return $block;
}
/**
* Delete the row from the IP blocks table.
*
* @throws MWException
* @return bool
*/
public function delete() {
if ( wfReadOnly() ) {
return false;
}
if ( !$this->getId() ) {
throw new MWException( "Block::delete() requires that the mId member be filled\n" );
}
$dbw = wfGetDB( DB_MASTER );
$dbw->delete( 'ipblocks', [ 'ipb_parent_block_id' => $this->getId() ], __METHOD__ );
$dbw->delete( 'ipblocks', [ 'ipb_id' => $this->getId() ], __METHOD__ );
return $dbw->affectedRows() > 0;
}
/**
* Insert a block into the block table. Will fail if there is a conflicting
* block (same name and options) already in the database.
*
* @param IDatabase|null $dbw If you have one available
* @return bool|array False on failure, assoc array on success:
* ('id' => block ID, 'autoIds' => array of autoblock IDs)
*/
public function insert( $dbw = null ) {
global $wgBlockDisablesLogin;
if ( $this->getSystemBlockType() !== null ) {
throw new MWException( 'Cannot insert a system block into the database' );
}
if ( !$this->getBlocker() || $this->getBlocker()->getName() === '' ) {
throw new MWException( 'Cannot insert a block without a blocker set' );
}
wfDebug( "Block::insert; timestamp {$this->mTimestamp}\n" );
if ( $dbw === null ) {
$dbw = wfGetDB( DB_MASTER );
}
self::purgeExpired();
$row = $this->getDatabaseArray( $dbw );
$dbw->insert( 'ipblocks', $row, __METHOD__, [ 'IGNORE' ] );
$affected = $dbw->affectedRows();
$this->mId = $dbw->insertId();
# Don't collide with expired blocks.
# Do this after trying to insert to avoid locking.
if ( !$affected ) {
# T96428: The ipb_address index uses a prefix on a field, so
# use a standard SELECT + DELETE to avoid annoying gap locks.
$ids = $dbw->selectFieldValues( 'ipblocks',
'ipb_id',
[
'ipb_address' => $row['ipb_address'],
'ipb_user' => $row['ipb_user'],
'ipb_expiry < ' . $dbw->addQuotes( $dbw->timestamp() )
],
__METHOD__
);
if ( $ids ) {
$dbw->delete( 'ipblocks', [ 'ipb_id' => $ids ], __METHOD__ );
$dbw->insert( 'ipblocks', $row, __METHOD__, [ 'IGNORE' ] );
$affected = $dbw->affectedRows();
$this->mId = $dbw->insertId();
}
}
if ( $affected ) {
$auto_ipd_ids = $this->doRetroactiveAutoblock();
if ( $wgBlockDisablesLogin && $this->target instanceof User ) {
// Change user login token to force them to be logged out.
$this->target->setToken();
$this->target->saveSettings();
}
return [ 'id' => $this->mId, 'autoIds' => $auto_ipd_ids ];
}
return false;
}
/**
* Update a block in the DB with new parameters.
* The ID field needs to be loaded first.
*
* @return bool|array False on failure, array on success:
* ('id' => block ID, 'autoIds' => array of autoblock IDs)
*/
public function update() {
wfDebug( "Block::update; timestamp {$this->mTimestamp}\n" );
$dbw = wfGetDB( DB_MASTER );
$dbw->startAtomic( __METHOD__ );
$dbw->update(
'ipblocks',
$this->getDatabaseArray( $dbw ),
[ 'ipb_id' => $this->getId() ],
__METHOD__
);
$affected = $dbw->affectedRows();
if ( $this->isAutoblocking() ) {
// update corresponding autoblock(s) (T50813)
$dbw->update(
'ipblocks',
$this->getAutoblockUpdateArray( $dbw ),
[ 'ipb_parent_block_id' => $this->getId() ],
__METHOD__
);
} else {
// autoblock no longer required, delete corresponding autoblock(s)
$dbw->delete(
'ipblocks',
[ 'ipb_parent_block_id' => $this->getId() ],
__METHOD__
);
}
$dbw->endAtomic( __METHOD__ );
if ( $affected ) {
$auto_ipd_ids = $this->doRetroactiveAutoblock();
return [ 'id' => $this->mId, 'autoIds' => $auto_ipd_ids ];
}
return false;
}
/**
* Get an array suitable for passing to $dbw->insert() or $dbw->update()
* @param IDatabase $dbw
* @return array
*/
protected function getDatabaseArray( IDatabase $dbw ) {
$expiry = $dbw->encodeExpiry( $this->mExpiry );
if ( $this->forcedTargetID ) {
$uid = $this->forcedTargetID;
} else {
$uid = $this->target instanceof User ? $this->target->getId() : 0;
}
$a = [
'ipb_address' => (string)$this->target,
'ipb_user' => $uid,
'ipb_timestamp' => $dbw->timestamp( $this->mTimestamp ),
'ipb_auto' => $this->mAuto,
'ipb_anon_only' => !$this->isHardblock(),
'ipb_create_account' => $this->prevents( 'createaccount' ),
'ipb_enable_autoblock' => $this->isAutoblocking(),
'ipb_expiry' => $expiry,
'ipb_range_start' => $this->getRangeStart(),
'ipb_range_end' => $this->getRangeEnd(),
'ipb_deleted' => intval( $this->mHideName ), // typecast required for SQLite
'ipb_block_email' => $this->prevents( 'sendemail' ),
'ipb_allow_usertalk' => !$this->prevents( 'editownusertalk' ),
'ipb_parent_block_id' => $this->mParentBlockId
] + CommentStore::getStore()->insert( $dbw, 'ipb_reason', $this->mReason )
+ ActorMigration::newMigration()->getInsertValues( $dbw, 'ipb_by', $this->getBlocker() );
return $a;
}
/**
* @param IDatabase $dbw
* @return array
*/
protected function getAutoblockUpdateArray( IDatabase $dbw ) {
return [
'ipb_create_account' => $this->prevents( 'createaccount' ),
'ipb_deleted' => (int)$this->mHideName, // typecast required for SQLite
'ipb_allow_usertalk' => !$this->prevents( 'editownusertalk' ),
] + CommentStore::getStore()->insert( $dbw, 'ipb_reason', $this->mReason )
+ ActorMigration::newMigration()->getInsertValues( $dbw, 'ipb_by', $this->getBlocker() );
}
/**
* Retroactively autoblocks the last IP used by the user (if it is a user)
* blocked by this Block.
*
* @return array Block IDs of retroactive autoblocks made
*/
protected function doRetroactiveAutoblock() {
$blockIds = [];
# If autoblock is enabled, autoblock the LAST IP(s) used
if ( $this->isAutoblocking() && $this->getType() == self::TYPE_USER ) {
wfDebug( "Doing retroactive autoblocks for " . $this->getTarget() . "\n" );
$continue = Hooks::run(
'PerformRetroactiveAutoblock', [ $this, &$blockIds ] );
if ( $continue ) {
self::defaultRetroactiveAutoblock( $this, $blockIds );
}
}
return $blockIds;
}
/**
* Retroactively autoblocks the last IP used by the user (if it is a user)
* blocked by this Block. This will use the recentchanges table.
*
* @param Block $block
* @param array &$blockIds
*/
protected static function defaultRetroactiveAutoblock( Block $block, array &$blockIds ) {
global $wgPutIPinRC;
// No IPs are in recentchanges table, so nothing to select
if ( !$wgPutIPinRC ) {
return;
}
$target = $block->getTarget();
if ( is_string( $target ) ) {
$target = User::newFromName( $target, false );
}
$dbr = wfGetDB( DB_REPLICA );
$rcQuery = ActorMigration::newMigration()->getWhere( $dbr, 'rc_user', $target, false );
$options = [ 'ORDER BY' => 'rc_timestamp DESC' ];
// Just the last IP used.
$options['LIMIT'] = 1;
$res = $dbr->select(
[ 'recentchanges' ] + $rcQuery['tables'],
[ 'rc_ip' ],
$rcQuery['conds'],
__METHOD__,
$options,
$rcQuery['joins']
);
if ( !$res->numRows() ) {
# No results, don't autoblock anything
wfDebug( "No IP found to retroactively autoblock\n" );
} else {
foreach ( $res as $row ) {
if ( $row->rc_ip ) {
$id = $block->doAutoblock( $row->rc_ip );
if ( $id ) {
$blockIds[] = $id;
}
}
}
}
}
/**
* Checks whether a given IP is on the autoblock whitelist.
* TODO: this probably belongs somewhere else, but not sure where...
*
* @param string $ip The IP to check
* @return bool
*/
public static function isWhitelistedFromAutoblocks( $ip ) {
// Try to get the autoblock_whitelist from the cache, as it's faster
// than getting the msg raw and explode()'ing it.
$cache = MediaWikiServices::getInstance()->getMainWANObjectCache();
$lines = $cache->getWithSetCallback(
$cache->makeKey( 'ip-autoblock', 'whitelist' ),
$cache::TTL_DAY,
function ( $curValue, &$ttl, array &$setOpts ) {
$setOpts += Database::getCacheSetOptions( wfGetDB( DB_REPLICA ) );
return explode( "\n",
wfMessage( 'autoblock_whitelist' )->inContentLanguage()->plain() );
}
);
wfDebug( "Checking the autoblock whitelist..\n" );
foreach ( $lines as $line ) {
# List items only
if ( substr( $line, 0, 1 ) !== '*' ) {
continue;
}
$wlEntry = substr( $line, 1 );
$wlEntry = trim( $wlEntry );
wfDebug( "Checking $ip against $wlEntry..." );
# Is the IP in this range?
if ( IP::isInRange( $ip, $wlEntry ) ) {
wfDebug( " IP $ip matches $wlEntry, not autoblocking\n" );
return true;
} else {
wfDebug( " No match\n" );
}
}
return false;
}
/**
* Autoblocks the given IP, referring to this Block.
*
* @param string $autoblockIP The IP to autoblock.
* @return int|bool Block ID if an autoblock was inserted, false if not.
*/
public function doAutoblock( $autoblockIP ) {
# If autoblocks are disabled, go away.
if ( !$this->isAutoblocking() ) {
return false;
}
# Don't autoblock for system blocks
if ( $this->getSystemBlockType() !== null ) {
throw new MWException( 'Cannot autoblock from a system block' );
}
# Check for presence on the autoblock whitelist.
if ( self::isWhitelistedFromAutoblocks( $autoblockIP ) ) {
return false;
}
// Avoid PHP 7.1 warning of passing $this by reference
$block = $this;
# Allow hooks to cancel the autoblock.
if ( !Hooks::run( 'AbortAutoblock', [ $autoblockIP, &$block ] ) ) {
wfDebug( "Autoblock aborted by hook.\n" );
return false;
}
# It's okay to autoblock. Go ahead and insert/update the block...
# Do not add a *new* block if the IP is already blocked.
$ipblock = self::newFromTarget( $autoblockIP );
if ( $ipblock ) {
# Check if the block is an autoblock and would exceed the user block
# if renewed. If so, do nothing, otherwise prolong the block time...
if ( $ipblock->mAuto && // @todo Why not compare $ipblock->mExpiry?
$this->mExpiry > self::getAutoblockExpiry( $ipblock->mTimestamp )
) {
# Reset block timestamp to now and its expiry to
# $wgAutoblockExpiry in the future
$ipblock->updateTimestamp();
}
return false;
}
# Make a new block object with the desired properties.
$autoblock = new Block;
wfDebug( "Autoblocking {$this->getTarget()}@" . $autoblockIP . "\n" );
$autoblock->setTarget( $autoblockIP );
$autoblock->setBlocker( $this->getBlocker() );
$autoblock->mReason = wfMessage( 'autoblocker', $this->getTarget(), $this->mReason )
->inContentLanguage()->plain();
$timestamp = wfTimestampNow();
$autoblock->mTimestamp = $timestamp;
$autoblock->mAuto = 1;
$autoblock->prevents( 'createaccount', $this->prevents( 'createaccount' ) );
# Continue suppressing the name if needed
$autoblock->mHideName = $this->mHideName;
$autoblock->prevents( 'editownusertalk', $this->prevents( 'editownusertalk' ) );
$autoblock->mParentBlockId = $this->mId;
if ( $this->mExpiry == 'infinity' ) {
# Original block was indefinite, start an autoblock now
$autoblock->mExpiry = self::getAutoblockExpiry( $timestamp );
} else {
# If the user is already blocked with an expiry date, we don't
# want to pile on top of that.
$autoblock->mExpiry = min( $this->mExpiry, self::getAutoblockExpiry( $timestamp ) );
}
# Insert the block...
$status = $autoblock->insert();
return $status
? $status['id']
: false;
}
/**
* Check if a block has expired. Delete it if it is.
* @return bool
*/
public function deleteIfExpired() {
if ( $this->isExpired() ) {
wfDebug( "Block::deleteIfExpired() -- deleting\n" );
$this->delete();
$retVal = true;
} else {
wfDebug( "Block::deleteIfExpired() -- not expired\n" );
$retVal = false;
}
return $retVal;
}
/**
* Has the block expired?
* @return bool
*/
public function isExpired() {
$timestamp = wfTimestampNow();
wfDebug( "Block::isExpired() checking current " . $timestamp . " vs $this->mExpiry\n" );
if ( !$this->mExpiry ) {
return false;
} else {
return $timestamp > $this->mExpiry;
}
}
/**
* Is the block address valid (i.e. not a null string?)
* @return bool
*/
public function isValid() {
return $this->getTarget() != null;
}
/**
* Update the timestamp on autoblocks.
*/
public function updateTimestamp() {
if ( $this->mAuto ) {
$this->mTimestamp = wfTimestamp();
$this->mExpiry = self::getAutoblockExpiry( $this->mTimestamp );
$dbw = wfGetDB( DB_MASTER );
$dbw->update( 'ipblocks',
[ /* SET */
'ipb_timestamp' => $dbw->timestamp( $this->mTimestamp ),
'ipb_expiry' => $dbw->timestamp( $this->mExpiry ),
],
[ /* WHERE */
'ipb_id' => $this->getId(),
],
__METHOD__
);
}
}
/**
* Get the IP address at the start of the range in Hex form
* @throws MWException
* @return string IP in Hex form
*/
public function getRangeStart() {
switch ( $this->type ) {
case self::TYPE_USER:
return '';
case self::TYPE_IP:
return IP::toHex( $this->target );
case self::TYPE_RANGE:
list( $start, /*...*/ ) = IP::parseRange( $this->target );
return $start;
default:
throw new MWException( "Block with invalid type" );
}
}
/**
* Get the IP address at the end of the range in Hex form
* @throws MWException
* @return string IP in Hex form
*/
public function getRangeEnd() {
switch ( $this->type ) {
case self::TYPE_USER:
return '';
case self::TYPE_IP:
return IP::toHex( $this->target );
case self::TYPE_RANGE:
list( /*...*/, $end ) = IP::parseRange( $this->target );
return $end;
default:
throw new MWException( "Block with invalid type" );
}
}
/**
* Get the user id of the blocking sysop
*
* @return int (0 for foreign users)
*/
public function getBy() {
$blocker = $this->getBlocker();
return ( $blocker instanceof User )
? $blocker->getId()
: 0;
}
/**
* Get the username of the blocking sysop
*
* @return string
*/
public function getByName() {
$blocker = $this->getBlocker();
return ( $blocker instanceof User )
? $blocker->getName()
: (string)$blocker; // username
}
/**
* Get the block ID
* @return int
*/
public function getId() {
return $this->mId;
}
/**
* Get the system block type, if any
* @since 1.29
* @return string|null
*/
public function getSystemBlockType() {
return $this->systemBlockType;
}
/**
* Get/set a flag determining whether the master is used for reads
*
* @param bool|null $x
* @return bool
*/
public function fromMaster( $x = null ) {
return wfSetVar( $this->mFromMaster, $x );
}
/**
* Get/set whether the Block is a hardblock (affects logged-in users on a given IP/range)
* @param bool|null $x
* @return bool
*/
public function isHardblock( $x = null ) {
wfSetVar( $this->isHardblock, $x );
# You can't *not* hardblock a user
return $this->getType() == self::TYPE_USER
? true
: $this->isHardblock;
}
/**
* @param null|bool $x
* @return bool
*/
public function isAutoblocking( $x = null ) {
wfSetVar( $this->isAutoblocking, $x );
# You can't put an autoblock on an IP or range as we don't have any history to
# look over to get more IPs from
return $this->getType() == self::TYPE_USER
? $this->isAutoblocking
: false;
}
/**
* Get/set whether the Block prevents a given action
*
* @param string $action Action to check
* @param bool|null $x Value for set, or null to just get value
* @return bool|null Null for unrecognized rights.
*/
public function prevents( $action, $x = null ) {
global $wgBlockDisablesLogin;
$res = null;
switch ( $action ) {
case 'edit':
# For now... <evil laugh>
$res = true;
break;
case 'createaccount':
$res = wfSetVar( $this->mCreateAccount, $x );
break;
case 'sendemail':
$res = wfSetVar( $this->mBlockEmail, $x );
break;
case 'editownusertalk':
$res = wfSetVar( $this->mDisableUsertalk, $x );
break;
case 'read':
$res = false;
break;
}
if ( !$res && $wgBlockDisablesLogin ) {
// If a block would disable login, then it should
// prevent any action that all users cannot do
$anon = new User;
$res = $anon->isAllowed( $action ) ? $res : true;
}
return $res;
}
/**
* Get the block name, but with autoblocked IPs hidden as per standard privacy policy
* @return string Text is escaped
*/
public function getRedactedName() {
if ( $this->mAuto ) {
return Html::rawElement(
'span',
[ 'class' => 'mw-autoblockid' ],
wfMessage( 'autoblockid', $this->mId )
);
} else {
return htmlspecialchars( $this->getTarget() );
}
}
/**
* Get a timestamp of the expiry for autoblocks
*
* @param string|int $timestamp
* @return string
*/
public static function getAutoblockExpiry( $timestamp ) {
global $wgAutoblockExpiry;
return wfTimestamp( TS_MW, wfTimestamp( TS_UNIX, $timestamp ) + $wgAutoblockExpiry );
}
/**
* Purge expired blocks from the ipblocks table
*/
public static function purgeExpired() {
if ( wfReadOnly() ) {
return;
}
DeferredUpdates::addUpdate( new AutoCommitUpdate(
wfGetDB( DB_MASTER ),
__METHOD__,
function ( IDatabase $dbw, $fname ) {
$ids = $dbw->selectFieldValues( 'ipblocks',
'ipb_id',
[ 'ipb_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ],
$fname
);
if ( $ids ) {
$dbw->delete( 'ipblocks', [ 'ipb_id' => $ids ], $fname );
}
}
) );
}
/**
* Given a target and the target's type, get an existing Block object if possible.
* @param string|User|int $specificTarget A block target, which may be one of several types:
* * A user to block, in which case $target will be a User
* * An IP to block, in which case $target will be a User generated by using
* User::newFromName( $ip, false ) to turn off name validation
* * An IP range, in which case $target will be a String "123.123.123.123/18" etc
* * The ID of an existing block, in the format "#12345" (since pure numbers are valid
* usernames
* Calling this with a user, IP address or range will not select autoblocks, and will
* only select a block where the targets match exactly (so looking for blocks on
* 1.2.3.4 will not select 1.2.0.0/16 or even 1.2.3.4/32)
* @param string|User|int|null $vagueTarget As above, but we will search for *any* block which
* affects that target (so for an IP address, get ranges containing that IP; and also
* get any relevant autoblocks). Leave empty or blank to skip IP-based lookups.
* @param bool $fromMaster Whether to use the DB_MASTER database
* @return Block|null (null if no relevant block could be found). The target and type
* of the returned Block will refer to the actual block which was found, which might
* not be the same as the target you gave if you used $vagueTarget!
*/
public static function newFromTarget( $specificTarget, $vagueTarget = null, $fromMaster = false ) {
list( $target, $type ) = self::parseTarget( $specificTarget );
if ( $type == self::TYPE_ID || $type == self::TYPE_AUTO ) {
return self::newFromID( $target );
} elseif ( $target === null && $vagueTarget == '' ) {
# We're not going to find anything useful here
# Be aware that the == '' check is explicit, since empty values will be
# passed by some callers (T31116)
return null;
} elseif ( in_array(
$type,
[ self::TYPE_USER, self::TYPE_IP, self::TYPE_RANGE, null ] )
) {
$block = new Block();
$block->fromMaster( $fromMaster );
if ( $type !== null ) {
$block->setTarget( $target );
}
if ( $block->newLoad( $vagueTarget ) ) {
return $block;
}
}
return null;
}
/**
* Get all blocks that match any IP from an array of IP addresses
*
* @param array $ipChain List of IPs (strings), usually retrieved from the
* X-Forwarded-For header of the request
* @param bool $isAnon Exclude anonymous-only blocks if false
* @param bool $fromMaster Whether to query the master or replica DB
* @return array Array of Blocks
* @since 1.22
*/
public static function getBlocksForIPList( array $ipChain, $isAnon, $fromMaster = false ) {
if ( !count( $ipChain ) ) {
return [];
}
$conds = [];
$proxyLookup = MediaWikiServices::getInstance()->getProxyLookup();
foreach ( array_unique( $ipChain ) as $ipaddr ) {
# Discard invalid IP addresses. Since XFF can be spoofed and we do not
# necessarily trust the header given to us, make sure that we are only
# checking for blocks on well-formatted IP addresses (IPv4 and IPv6).
# Do not treat private IP spaces as special as it may be desirable for wikis
# to block those IP ranges in order to stop misbehaving proxies that spoof XFF.
if ( !IP::isValid( $ipaddr ) ) {
continue;
}
# Don't check trusted IPs (includes local squids which will be in every request)
if ( $proxyLookup->isTrustedProxy( $ipaddr ) ) {
continue;
}
# Check both the original IP (to check against single blocks), as well as build
# the clause to check for rangeblocks for the given IP.
$conds['ipb_address'][] = $ipaddr;
$conds[] = self::getRangeCond( IP::toHex( $ipaddr ) );
}
if ( !count( $conds ) ) {
return [];
}
if ( $fromMaster ) {
$db = wfGetDB( DB_MASTER );
} else {
$db = wfGetDB( DB_REPLICA );
}
$conds = $db->makeList( $conds, LIST_OR );
if ( !$isAnon ) {
$conds = [ $conds, 'ipb_anon_only' => 0 ];
}
$blockQuery = self::getQueryInfo();
$rows = $db->select(
$blockQuery['tables'],
array_merge( [ 'ipb_range_start', 'ipb_range_end' ], $blockQuery['fields'] ),
$conds,
__METHOD__,
[],
$blockQuery['joins']
);
$blocks = [];
foreach ( $rows as $row ) {
$block = self::newFromRow( $row );
if ( !$block->isExpired() ) {
$blocks[] = $block;
}
}
return $blocks;
}
/**
* From a list of multiple blocks, find the most exact and strongest Block.
*
* The logic for finding the "best" block is:
* - Blocks that match the block's target IP are preferred over ones in a range
* - Hardblocks are chosen over softblocks that prevent account creation
* - Softblocks that prevent account creation are chosen over other softblocks
* - Other softblocks are chosen over autoblocks
* - If there are multiple exact or range blocks at the same level, the one chosen
* is random
* This should be used when $blocks where retrieved from the user's IP address
* and $ipChain is populated from the same IP address information.
*
* @param array $blocks Array of Block objects
* @param array $ipChain List of IPs (strings). This is used to determine how "close"
* a block is to the server, and if a block matches exactly, or is in a range.
* The order is furthest from the server to nearest e.g., (Browser, proxy1, proxy2,
* local-squid, ...)
* @throws MWException
* @return Block|null The "best" block from the list
*/
public static function chooseBlock( array $blocks, array $ipChain ) {
if ( !count( $blocks ) ) {
return null;
} elseif ( count( $blocks ) == 1 ) {
return $blocks[0];
}
// Sort hard blocks before soft ones and secondarily sort blocks
// that disable account creation before those that don't.
usort( $blocks, function ( Block $a, Block $b ) {
$aWeight = (int)$a->isHardblock() . (int)$a->prevents( 'createaccount' );
$bWeight = (int)$b->isHardblock() . (int)$b->prevents( 'createaccount' );
return strcmp( $bWeight, $aWeight ); // highest weight first
} );
$blocksListExact = [
'hard' => false,
'disable_create' => false,
'other' => false,
'auto' => false
];
$blocksListRange = [
'hard' => false,
'disable_create' => false,
'other' => false,
'auto' => false
];
$ipChain = array_reverse( $ipChain );
/** @var Block $block */
foreach ( $blocks as $block ) {
// Stop searching if we have already have a "better" block. This
// is why the order of the blocks matters
if ( !$block->isHardblock() && $blocksListExact['hard'] ) {
break;
} elseif ( !$block->prevents( 'createaccount' ) && $blocksListExact['disable_create'] ) {
break;
}
foreach ( $ipChain as $checkip ) {
$checkipHex = IP::toHex( $checkip );
if ( (string)$block->getTarget() === $checkip ) {
if ( $block->isHardblock() ) {
$blocksListExact['hard'] = $blocksListExact['hard'] ?: $block;
} elseif ( $block->prevents( 'createaccount' ) ) {
$blocksListExact['disable_create'] = $blocksListExact['disable_create'] ?: $block;
} elseif ( $block->mAuto ) {
$blocksListExact['auto'] = $blocksListExact['auto'] ?: $block;
} else {
$blocksListExact['other'] = $blocksListExact['other'] ?: $block;
}
// We found closest exact match in the ip list, so go to the next Block
break;
} elseif ( array_filter( $blocksListExact ) == []
&& $block->getRangeStart() <= $checkipHex
&& $block->getRangeEnd() >= $checkipHex
) {
if ( $block->isHardblock() ) {
$blocksListRange['hard'] = $blocksListRange['hard'] ?: $block;
} elseif ( $block->prevents( 'createaccount' ) ) {
$blocksListRange['disable_create'] = $blocksListRange['disable_create'] ?: $block;
} elseif ( $block->mAuto ) {
$blocksListRange['auto'] = $blocksListRange['auto'] ?: $block;
} else {
$blocksListRange['other'] = $blocksListRange['other'] ?: $block;
}
break;
}
}
}
if ( array_filter( $blocksListExact ) == [] ) {
$blocksList = &$blocksListRange;
} else {
$blocksList = &$blocksListExact;
}
$chosenBlock = null;
if ( $blocksList['hard'] ) {
$chosenBlock = $blocksList['hard'];
} elseif ( $blocksList['disable_create'] ) {
$chosenBlock = $blocksList['disable_create'];
} elseif ( $blocksList['other'] ) {
$chosenBlock = $blocksList['other'];
} elseif ( $blocksList['auto'] ) {
$chosenBlock = $blocksList['auto'];
} else {
throw new MWException( "Proxy block found, but couldn't be classified." );
}
return $chosenBlock;
}
/**
* From an existing Block, get the target and the type of target.
* Note that, except for null, it is always safe to treat the target
* as a string; for User objects this will return User::__toString()
* which in turn gives User::getName().
*
* @param string|int|User|null $target
* @return array [ User|String|null, Block::TYPE_ constant|null ]
*/
public static function parseTarget( $target ) {
# We may have been through this before
if ( $target instanceof User ) {
if ( IP::isValid( $target->getName() ) ) {
return [ $target, self::TYPE_IP ];
} else {
return [ $target, self::TYPE_USER ];
}
} elseif ( $target === null ) {
return [ null, null ];
}
$target = trim( $target );
if ( IP::isValid( $target ) ) {
# We can still create a User if it's an IP address, but we need to turn
# off validation checking (which would exclude IP addresses)
return [
User::newFromName( IP::sanitizeIP( $target ), false ),
self::TYPE_IP
];
} elseif ( IP::isValidRange( $target ) ) {
# Can't create a User from an IP range
return [ IP::sanitizeRange( $target ), self::TYPE_RANGE ];
}
# Consider the possibility that this is not a username at all
# but actually an old subpage (T31797)
if ( strpos( $target, '/' ) !== false ) {
# An old subpage, drill down to the user behind it
$target = explode( '/', $target )[0];
}
$userObj = User::newFromName( $target );
if ( $userObj instanceof User ) {
# Note that since numbers are valid usernames, a $target of "12345" will be
# considered a User. If you want to pass a block ID, prepend a hash "#12345",
# since hash characters are not valid in usernames or titles generally.
return [ $userObj, self::TYPE_USER ];
} elseif ( preg_match( '/^#\d+$/', $target ) ) {
# Autoblock reference in the form "#12345"
return [ substr( $target, 1 ), self::TYPE_AUTO ];
} else {
# WTF?
return [ null, null ];
}
}
/**
* Get the type of target for this particular block
* @return int Block::TYPE_ constant, will never be TYPE_ID
*/
public function getType() {
return $this->mAuto
? self::TYPE_AUTO
: $this->type;
}
/**
* Get the target and target type for this particular Block. Note that for autoblocks,
* this returns the unredacted name; frontend functions need to call $block->getRedactedName()
* in this situation.
* @return array [ User|String, Block::TYPE_ constant ]
* @todo FIXME: This should be an integral part of the Block member variables
*/
public function getTargetAndType() {
return [ $this->getTarget(), $this->getType() ];
}
/**
* Get the target for this particular Block. Note that for autoblocks,
* this returns the unredacted name; frontend functions need to call $block->getRedactedName()
* in this situation.
* @return User|string
*/
public function getTarget() {
return $this->target;
}
/**
* @since 1.19
*
* @return mixed|string
*/
public function getExpiry() {
return $this->mExpiry;
}
/**
* Set the target for this block, and update $this->type accordingly
* @param mixed $target
*/
public function setTarget( $target ) {
list( $this->target, $this->type ) = self::parseTarget( $target );
}
/**
* Get the user who implemented this block
* @return User User object. May name a foreign user.
*/
public function getBlocker() {
return $this->blocker;
}
/**
* Set the user who implemented (or will implement) this block
* @param User|string $user Local User object or username string
*/
public function setBlocker( $user ) {
if ( is_string( $user ) ) {
$user = User::newFromName( $user, false );
}
if ( $user->isAnon() && User::isUsableName( $user->getName() ) ) {
throw new InvalidArgumentException(
'Blocker must be a local user or a name that cannot be a local user'
);
}
$this->blocker = $user;
}
/**
* Set the 'BlockID' cookie to this block's ID and expiry time. The cookie's expiry will be
* the same as the block's, to a maximum of 24 hours.
*
* @since 1.29
*
* @param WebResponse $response The response on which to set the cookie.
*/
public function setCookie( WebResponse $response ) {
// Calculate the default expiry time.
$maxExpiryTime = wfTimestamp( TS_MW, wfTimestamp() + ( 24 * 60 * 60 ) );
// Use the Block's expiry time only if it's less than the default.
$expiryTime = $this->getExpiry();
if ( $expiryTime === 'infinity' || $expiryTime > $maxExpiryTime ) {
$expiryTime = $maxExpiryTime;
}
// Set the cookie. Reformat the MediaWiki datetime as a Unix timestamp for the cookie.
$expiryValue = DateTime::createFromFormat( 'YmdHis', $expiryTime )->format( 'U' );
$cookieOptions = [ 'httpOnly' => false ];
$cookieValue = $this->getCookieValue();
$response->setCookie( 'BlockID', $cookieValue, $expiryValue, $cookieOptions );
}
/**
* Unset the 'BlockID' cookie.
*
* @since 1.29
*
* @param WebResponse $response The response on which to unset the cookie.
*/
public static function clearCookie( WebResponse $response ) {
$response->clearCookie( 'BlockID', [ 'httpOnly' => false ] );
}
/**
* Get the BlockID cookie's value for this block. This is usually the block ID concatenated
* with an HMAC in order to avoid spoofing (T152951), but if wgSecretKey is not set will just
* be the block ID.
*
* @since 1.29
*
* @return string The block ID, probably concatenated with "!" and the HMAC.
*/
public function getCookieValue() {
$config = RequestContext::getMain()->getConfig();
$id = $this->getId();
$secretKey = $config->get( 'SecretKey' );
if ( !$secretKey ) {
// If there's no secret key, don't append a HMAC.
return $id;
}
$hmac = MWCryptHash::hmac( $id, $secretKey, false );
$cookieValue = $id . '!' . $hmac;
return $cookieValue;
}
/**
* Get the stored ID from the 'BlockID' cookie. The cookie's value is usually a combination of
* the ID and a HMAC (see Block::setCookie), but will sometimes only be the ID.
*
* @since 1.29
*
* @param string $cookieValue The string in which to find the ID.
*
* @return int|null The block ID, or null if the HMAC is present and invalid.
*/
public static function getIdFromCookieValue( $cookieValue ) {
// Extract the ID prefix from the cookie value (may be the whole value, if no bang found).
$bangPos = strpos( $cookieValue, '!' );
$id = ( $bangPos === false ) ? $cookieValue : substr( $cookieValue, 0, $bangPos );
// Get the site-wide secret key.
$config = RequestContext::getMain()->getConfig();
$secretKey = $config->get( 'SecretKey' );
if ( !$secretKey ) {
// If there's no secret key, just use the ID as given.
return $id;
}
$storedHmac = substr( $cookieValue, $bangPos + 1 );
$calculatedHmac = MWCryptHash::hmac( $id, $secretKey, false );
if ( $calculatedHmac === $storedHmac ) {
return $id;
} else {
return null;
}
}
/**
* Get the key and parameters for the corresponding error message.
*
* @since 1.22
* @param IContextSource $context
* @return array
*/
public function getPermissionsError( IContextSource $context ) {
$blocker = $this->getBlocker();
if ( $blocker instanceof User ) { // local user
$blockerUserpage = $blocker->getUserPage();
$link = "[[{$blockerUserpage->getPrefixedText()}|{$blockerUserpage->getText()}]]";
} else { // foreign user
$link = $blocker;
}
$reason = $this->mReason;
if ( $reason == '' ) {
$reason = $context->msg( 'blockednoreason' )->text();
}
/* $ip returns who *is* being blocked, $intended contains who was meant to be blocked.
* This could be a username, an IP range, or a single IP. */
$intended = $this->getTarget();
$systemBlockType = $this->getSystemBlockType();
$lang = $context->getLanguage();
return [
$systemBlockType !== null
? 'systemblockedtext'
: ( $this->mAuto ? 'autoblockedtext' : 'blockedtext' ),
$link,
$reason,
$context->getRequest()->getIP(),
$this->getByName(),
$systemBlockType ?? $this->getId(),
$lang->formatExpiry( $this->mExpiry ),
(string)$intended,
$lang->userTimeAndDate( $this->mTimestamp, $context->getUser() ),
];
}
}
Mini Shell