includes/api/ApiQueryBlocks.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on Sep 10, 2007
   6  *
   7  * Copyright © 2007 Roan Kattouw "<Firstname>.<Lastname>@gmail.com"
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  */
  26
  27 /**
  28  * Query module to enumerate all user blocks
  29  *
  30  * @ingroup API
  31  */
  32 class ApiQueryBlocks extends ApiQueryBase {
  33
  34         /**
  35          * @var Array
  36          */
  37         protected $usernames;
  38
  39         public function __construct( $query, $moduleName ) {
  40                 parent::__construct( $query, $moduleName, 'bk' );
  41         }
  42
  43         public function execute() {
  44                 global $wgContLang;
  45
  46                 $params = $this->extractRequestParams();
  47                 $this->requireMaxOneParameter( $params, 'users', 'ip' );
  48
  49                 $prop = array_flip( $params['prop'] );
  50                 $fld_id = isset( $prop['id'] );
  51                 $fld_user = isset( $prop['user'] );
  52                 $fld_userid = isset( $prop['userid'] );
  53                 $fld_by = isset( $prop['by'] );
  54                 $fld_byid = isset( $prop['byid'] );
  55                 $fld_timestamp = isset( $prop['timestamp'] );
  56                 $fld_expiry = isset( $prop['expiry'] );
  57                 $fld_reason = isset( $prop['reason'] );
  58                 $fld_range = isset( $prop['range'] );
  59                 $fld_flags = isset( $prop['flags'] );
  60
  61                 $result = $this->getResult();
  62
  63                 $this->addTables( 'ipblocks' );
  64                 $this->addFields( 'ipb_auto' );
  65
  66                 $this->addFieldsIf( 'ipb_id', $fld_id );
  67                 $this->addFieldsIf( array( 'ipb_address', 'ipb_user' ), $fld_user || $fld_userid );
  68                 $this->addFieldsIf( 'ipb_by_text', $fld_by );
  69                 $this->addFieldsIf( 'ipb_by', $fld_byid );
  70                 $this->addFieldsIf( 'ipb_timestamp', $fld_timestamp );
  71                 $this->addFieldsIf( 'ipb_expiry', $fld_expiry );
  72                 $this->addFieldsIf( 'ipb_reason', $fld_reason );
  73                 $this->addFieldsIf( array( 'ipb_range_start', 'ipb_range_end' ), $fld_range );
  74                 $this->addFieldsIf( array( 'ipb_anon_only', 'ipb_create_account', 'ipb_enable_autoblock',
  75                         'ipb_block_email', 'ipb_deleted', 'ipb_allow_usertalk' ),
  76                         $fld_flags );
  77
  78                 $this->addOption( 'LIMIT', $params['limit'] + 1 );
  79                 $this->addTimestampWhereRange(
  80                         'ipb_timestamp',
  81                         $params['dir'],
  82                         $params['start'],
  83                         $params['end']
  84                 );
  85
  86                 $db = $this->getDB();
  87
  88                 if ( isset( $params['ids'] ) ) {
  89                         $this->addWhereFld( 'ipb_id', $params['ids'] );
  90                 }
  91                 if ( isset( $params['users'] ) ) {
  92                         foreach ( (array)$params['users'] as $u ) {
  93                                 $this->prepareUsername( $u );
  94                         }
  95                         $this->addWhereFld( 'ipb_address', $this->usernames );
  96                         $this->addWhereFld( 'ipb_auto', 0 );
  97                 }
  98                 if ( isset( $params['ip'] ) ) {
  99                         global $wgBlockCIDRLimit;
 100                         if ( IP::isIPv4( $params['ip'] ) ) {
 101                                 $type = 'IPv4';
 102                                 $cidrLimit = $wgBlockCIDRLimit['IPv4'];
 103                                 $prefixLen = 0;
 104                         } elseif ( IP::isIPv6( $params['ip'] ) ) {
 105                                 $type = 'IPv6';
 106                                 $cidrLimit = $wgBlockCIDRLimit['IPv6'];
 107                                 $prefixLen = 3; // IP::toHex output is prefixed with "v6-"
 108                         } else {
 109                                 $this->dieUsage( 'IP parameter is not valid', 'param_ip' );
 110                         }
 111
 112                         # Check range validity, if it's a CIDR
 113                         list( $ip, $range ) = IP::parseCIDR( $params['ip'] );
 114                         if ( $ip !== false && $range !== false && $range < $cidrLimit ) {
 115                                 $this->dieUsage(
 116                                         "$type CIDR ranges broader than /$cidrLimit are not accepted",
 117                                         'cidrtoobroad'
 118                                 );
 119                         }
 120
 121                         # Let IP::parseRange handle calculating $upper, instead of duplicating the logic here.
 122                         list( $lower, $upper ) = IP::parseRange( $params['ip'] );
 123
 124                         # Extract the common prefix to any rangeblock affecting this IP/CIDR
 125                         $prefix = substr( $lower, 0, $prefixLen + floor( $cidrLimit / 4 ) );
 126
 127                         # Fairly hard to make a malicious SQL statement out of hex characters,
 128                         # but it is good practice to add quotes
 129                         $lower = $db->addQuotes( $lower );
 130                         $upper = $db->addQuotes( $upper );
 131
 132                         $this->addWhere( array(
 133                                 'ipb_range_start' . $db->buildLike( $prefix, $db->anyString() ),
 134                                 'ipb_range_start <= ' . $lower,
 135                                 'ipb_range_end >= ' . $upper,
 136                                 'ipb_auto' => 0
 137                         ) );
 138                 }
 139
 140                 if ( !is_null( $params['show'] ) ) {
 141                         $show = array_flip( $params['show'] );
 142
 143                         /* Check for conflicting parameters. */
 144                         if ( ( isset( $show['account'] ) && isset( $show['!account'] ) )
 145                                 || ( isset( $show['ip'] ) && isset( $show['!ip'] ) )
 146                                 || ( isset( $show['range'] ) && isset( $show['!range'] ) )
 147                                 || ( isset( $show['temp'] ) && isset( $show['!temp'] ) )
 148                         ) {
 149                                 $this->dieUsageMsg( 'show' );
 150                         }
 151
 152                         $this->addWhereIf( 'ipb_user = 0', isset( $show['!account'] ) );
 153                         $this->addWhereIf( 'ipb_user != 0', isset( $show['account'] ) );
 154                         $this->addWhereIf( 'ipb_user != 0 OR ipb_range_end > ipb_range_start', isset( $show['!ip'] ) );
 155                         $this->addWhereIf( 'ipb_user = 0 AND ipb_range_end = ipb_range_start', isset( $show['ip'] ) );
 156                         $this->addWhereIf( 'ipb_expiry = ' .
 157                                 $db->addQuotes( $db->getInfinity() ), isset( $show['!temp'] ) );
 158                         $this->addWhereIf( 'ipb_expiry != ' .
 159                                 $db->addQuotes( $db->getInfinity() ), isset( $show['temp'] ) );
 160                         $this->addWhereIf( 'ipb_range_end = ipb_range_start', isset( $show['!range'] ) );
 161                         $this->addWhereIf( 'ipb_range_end > ipb_range_start', isset( $show['range'] ) );
 162                 }
 163
 164                 if ( !$this->getUser()->isAllowed( 'hideuser' ) ) {
 165                         $this->addWhereFld( 'ipb_deleted', 0 );
 166                 }
 167
 168                 // Purge expired entries on one in every 10 queries
 169                 if ( !mt_rand( 0, 10 ) ) {
 170                         Block::purgeExpired();
 171                 }
 172
 173                 $res = $this->select( __METHOD__ );
 174
 175                 $count = 0;
 176                 foreach ( $res as $row ) {
 177                         if ( ++$count > $params['limit'] ) {
 178                                 // We've had enough
 179                                 $this->setContinueEnumParameter( 'start', wfTimestamp( TS_ISO_8601, $row->ipb_timestamp ) );
 180                                 break;
 181                         }
 182                         $block = array();
 183                         if ( $fld_id ) {
 184                                 $block['id'] = $row->ipb_id;
 185                         }
 186                         if ( $fld_user && !$row->ipb_auto ) {
 187                                 $block['user'] = $row->ipb_address;
 188                         }
 189                         if ( $fld_userid && !$row->ipb_auto ) {
 190                                 $block['userid'] = $row->ipb_user;
 191                         }
 192                         if ( $fld_by ) {
 193                                 $block['by'] = $row->ipb_by_text;
 194                         }
 195                         if ( $fld_byid ) {
 196                                 $block['byid'] = $row->ipb_by;
 197                         }
 198                         if ( $fld_timestamp ) {
 199                                 $block['timestamp'] = wfTimestamp( TS_ISO_8601, $row->ipb_timestamp );
 200                         }
 201                         if ( $fld_expiry ) {
 202                                 $block['expiry'] = $wgContLang->formatExpiry( $row->ipb_expiry, TS_ISO_8601 );
 203                         }
 204                         if ( $fld_reason ) {
 205                                 $block['reason'] = $row->ipb_reason;
 206                         }
 207                         if ( $fld_range && !$row->ipb_auto ) {
 208                                 $block['rangestart'] = IP::formatHex( $row->ipb_range_start );
 209                                 $block['rangeend'] = IP::formatHex( $row->ipb_range_end );
 210                         }
 211                         if ( $fld_flags ) {
 212                                 // For clarity, these flags use the same names as their action=block counterparts
 213                                 if ( $row->ipb_auto ) {
 214                                         $block['automatic'] = '';
 215                                 }
 216                                 if ( $row->ipb_anon_only ) {
 217                                         $block['anononly'] = '';
 218                                 }
 219                                 if ( $row->ipb_create_account ) {
 220                                         $block['nocreate'] = '';
 221                                 }
 222                                 if ( $row->ipb_enable_autoblock ) {
 223                                         $block['autoblock'] = '';
 224                                 }
 225                                 if ( $row->ipb_block_email ) {
 226                                         $block['noemail'] = '';
 227                                 }
 228                                 if ( $row->ipb_deleted ) {
 229                                         $block['hidden'] = '';
 230                                 }
 231                                 if ( $row->ipb_allow_usertalk ) {
 232                                         $block['allowusertalk'] = '';
 233                                 }
 234                         }
 235                         $fit = $result->addValue( array( 'query', $this->getModuleName() ), null, $block );
 236                         if ( !$fit ) {
 237                                 $this->setContinueEnumParameter( 'start', wfTimestamp( TS_ISO_8601, $row->ipb_timestamp ) );
 238                                 break;
 239                         }
 240                 }
 241                 $result->setIndexedTagName_internal( array( 'query', $this->getModuleName() ), 'block' );
 242         }
 243
 244         protected function prepareUsername( $user ) {
 245                 if ( !$user ) {
 246                         $this->dieUsage( 'User parameter may not be empty', 'param_user' );
 247                 }
 248                 $name = User::isIP( $user )
 249                         ? $user
 250                         : User::getCanonicalName( $user, 'valid' );
 251                 if ( $name === false ) {
 252                         $this->dieUsage( "User name {$user} is not valid", 'param_user' );
 253                 }
 254                 $this->usernames[] = $name;
 255         }
 256
 257         public function getAllowedParams() {
 258                 return array(
 259                         'start' => array(
 260                                 ApiBase::PARAM_TYPE => 'timestamp'
 261                         ),
 262                         'end' => array(
 263                                 ApiBase::PARAM_TYPE => 'timestamp',
 264                         ),
 265                         'dir' => array(
 266                                 ApiBase::PARAM_TYPE => array(
 267                                         'newer',
 268                                         'older'
 269                                 ),
 270                                 ApiBase::PARAM_DFLT => 'older'
 271                         ),
 272                         'ids' => array(
 273                                 ApiBase::PARAM_TYPE => 'integer',
 274                                 ApiBase::PARAM_ISMULTI => true
 275                         ),
 276                         'users' => array(
 277                                 ApiBase::PARAM_ISMULTI => true
 278                         ),
 279                         'ip' => null,
 280                         'limit' => array(
 281                                 ApiBase::PARAM_DFLT => 10,
 282                                 ApiBase::PARAM_TYPE => 'limit',
 283                                 ApiBase::PARAM_MIN => 1,
 284                                 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
 285                                 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
 286                         ),
 287                         'prop' => array(
 288                                 ApiBase::PARAM_DFLT => 'id|user|by|timestamp|expiry|reason|flags',
 289                                 ApiBase::PARAM_TYPE => array(
 290                                         'id',
 291                                         'user',
 292                                         'userid',
 293                                         'by',
 294                                         'byid',
 295                                         'timestamp',
 296                                         'expiry',
 297                                         'reason',
 298                                         'range',
 299                                         'flags'
 300                                 ),
 301                                 ApiBase::PARAM_ISMULTI => true
 302                         ),
 303                         'show' => array(
 304                                 ApiBase::PARAM_TYPE => array(
 305                                         'account',
 306                                         '!account',
 307                                         'temp',
 308                                         '!temp',
 309                                         'ip',
 310                                         '!ip',
 311                                         'range',
 312                                         '!range',
 313                                 ),
 314                                 ApiBase::PARAM_ISMULTI => true
 315                         ),
 316                 );
 317         }
 318
 319         public function getParamDescription() {
 320                 global $wgBlockCIDRLimit;
 321                 $p = $this->getModulePrefix();
 322
 323                 return array(
 324                         'start' => 'The timestamp to start enumerating from',
 325                         'end' => 'The timestamp to stop enumerating at',
 326                         'dir' => $this->getDirectionDescription( $p ),
 327                         'ids' => 'List of block IDs to list (optional)',
 328                         'users' => 'List of users to search for (optional)',
 329                         'ip' => array(
 330                                 'Get all blocks applying to this IP or CIDR range, including range blocks.',
 331                                 "Cannot be used together with bkusers. CIDR ranges broader than " .
 332                                         "IPv4/{$wgBlockCIDRLimit['IPv4']} or IPv6/{$wgBlockCIDRLimit['IPv6']} " .
 333                                         "are not accepted"
 334                         ),
 335                         'limit' => 'The maximum amount of blocks to list',
 336                         'prop' => array(
 337                                 'Which properties to get',
 338                                 ' id         - Adds the ID of the block',
 339                                 ' user       - Adds the username of the blocked user',
 340                                 ' userid     - Adds the user ID of the blocked user',
 341                                 ' by         - Adds the username of the blocking user',
 342                                 ' byid       - Adds the user ID of the blocking user',
 343                                 ' timestamp  - Adds the timestamp of when the block was given',
 344                                 ' expiry     - Adds the timestamp of when the block expires',
 345                                 ' reason     - Adds the reason given for the block',
 346                                 ' range      - Adds the range of IPs affected by the block',
 347                                 ' flags      - Tags the ban with (autoblock, anononly, etc)',
 348                         ),
 349                         'show' => array(
 350                                 'Show only items that meet this criteria.',
 351                                 "For example, to see only indefinite blocks on IPs, set {$p}show=ip|!temp"
 352                         ),
 353                 );
 354         }
 355
 356         public function getResultProperties() {
 357                 return array(
 358                         'id' => array(
 359                                 'id' => 'integer'
 360                         ),
 361                         'user' => array(
 362                                 'user' => array(
 363                                         ApiBase::PROP_TYPE => 'string',
 364                                         ApiBase::PROP_NULLABLE => true
 365                                 )
 366                         ),
 367                         'userid' => array(
 368                                 'userid' => array(
 369                                         ApiBase::PROP_TYPE => 'integer',
 370                                         ApiBase::PROP_NULLABLE => true
 371                                 )
 372                         ),
 373                         'by' => array(
 374                                 'by' => 'string'
 375                         ),
 376                         'byid' => array(
 377                                 'byid' => 'integer'
 378                         ),
 379                         'timestamp' => array(
 380                                 'timestamp' => 'timestamp'
 381                         ),
 382                         'expiry' => array(
 383                                 'expiry' => 'timestamp'
 384                         ),
 385                         'reason' => array(
 386                                 'reason' => 'string'
 387                         ),
 388                         'range' => array(
 389                                 'rangestart' => array(
 390                                         ApiBase::PROP_TYPE => 'string',
 391                                         ApiBase::PROP_NULLABLE => true
 392                                 ),
 393                                 'rangeend' => array(
 394                                         ApiBase::PROP_TYPE => 'string',
 395                                         ApiBase::PROP_NULLABLE => true
 396                                 )
 397                         ),
 398                         'flags' => array(
 399                                 'automatic' => 'boolean',
 400                                 'anononly' => 'boolean',
 401                                 'nocreate' => 'boolean',
 402                                 'autoblock' => 'boolean',
 403                                 'noemail' => 'boolean',
 404                                 'hidden' => 'boolean',
 405                                 'allowusertalk' => 'boolean'
 406                         )
 407                 );
 408         }
 409
 410         public function getDescription() {
 411                 return 'List all blocked users and IP addresses';
 412         }
 413
 414         public function getPossibleErrors() {
 415                 global $wgBlockCIDRLimit;
 416
 417                 return array_merge( parent::getPossibleErrors(),
 418                         $this->getRequireOnlyOneParameterErrorMessages( array( 'users', 'ip' ) ),
 419                         array(
 420                                 array(
 421                                         'code' => 'cidrtoobroad',
 422                                         'info' => "IPv4 CIDR ranges broader than /{$wgBlockCIDRLimit['IPv4']} are not accepted"
 423                                 ),
 424                                 array(
 425                                         'code' => 'cidrtoobroad',
 426                                         'info' => "IPv6 CIDR ranges broader than /{$wgBlockCIDRLimit['IPv6']} are not accepted"
 427                                 ),
 428                                 array( 'code' => 'param_ip', 'info' => 'IP parameter is not valid' ),
 429                                 array( 'code' => 'param_user', 'info' => 'User parameter may not be empty' ),
 430                                 array( 'code' => 'param_user', 'info' => 'User name user is not valid' ),
 431                                 array( 'show' ),
 432                         )
 433                 );
 434         }
 435
 436         public function getExamples() {
 437                 return array(
 438                         'api.php?action=query&list=blocks',
 439                         'api.php?action=query&list=blocks&bkusers=Alice|Bob'
 440                 );
 441         }
 442
 443         public function getHelpUrls() {
 444                 return 'https://www.mediawiki.org/wiki/API:Blocks';
 445         }
 446 }