]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - includes/api/ApiParamInfo.php
MediaWiki 1.30.2
[autoinstallsdev/mediawiki.git] / includes / api / ApiParamInfo.php
index 8fe2cad2fa15a65c8cf1616a6ec0fb48441bd784..2fa20a96eac90d63f2ff4d0ed589e50c29922606 100644 (file)
@@ -1,11 +1,10 @@
 <?php
-
-/*
- * Created on Dec 01, 2007
+/**
+ *
  *
- * API for MediaWiki 1.8+
+ * Created on Dec 01, 2007
  *
- * Copyright (C) 2008 Roan Kattouw <Firstname>.<Lastname>@home.nl
+ * Copyright © 2008 Roan Kattouw "<Firstname>.<Lastname>@gmail.com"
  *
  * 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
  *
  * 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.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
  */
 
-if ( !defined( 'MEDIAWIKI' ) ) {
-       // Eclipse helper - will be ignored in production
-       require_once ( "ApiBase.php" );
-}
-
 /**
  * @ingroup API
  */
 class ApiParamInfo extends ApiBase {
 
-       public function __construct( $main, $action ) {
-               parent :: __construct( $main, $action );
+       private $helpFormat;
+       private $context;
+
+       public function __construct( ApiMain $main, $action ) {
+               parent::__construct( $main, $action );
        }
 
        public function execute() {
                // Get parameters
                $params = $this->extractRequestParams();
+
+               $this->helpFormat = $params['helpformat'];
+               $this->context = new RequestContext;
+               $this->context->setUser( new User ); // anon to avoid caching issues
+               $this->context->setLanguage( $this->getMain()->getLanguage() );
+
+               if ( is_array( $params['modules'] ) ) {
+                       $modules = [];
+                       foreach ( $params['modules'] as $path ) {
+                               if ( $path === '*' || $path === '**' ) {
+                                       $path = "main+$path";
+                               }
+                               if ( substr( $path, -2 ) === '+*' || substr( $path, -2 ) === ' *' ) {
+                                       $submodules = true;
+                                       $path = substr( $path, 0, -2 );
+                                       $recursive = false;
+                               } elseif ( substr( $path, -3 ) === '+**' || substr( $path, -3 ) === ' **' ) {
+                                       $submodules = true;
+                                       $path = substr( $path, 0, -3 );
+                                       $recursive = true;
+                               } else {
+                                       $submodules = false;
+                               }
+
+                               if ( $submodules ) {
+                                       try {
+                                               $module = $this->getModuleFromPath( $path );
+                                       } catch ( ApiUsageException $ex ) {
+                                               foreach ( $ex->getStatusValue()->getErrors() as $error ) {
+                                                       $this->addWarning( $error );
+                                               }
+                                               continue;
+                                       }
+                                       $submodules = $this->listAllSubmodules( $module, $recursive );
+                                       if ( $submodules ) {
+                                               $modules = array_merge( $modules, $submodules );
+                                       } else {
+                                               $this->addWarning( [ 'apierror-badmodule-nosubmodules', $path ], 'badmodule' );
+                                       }
+                               } else {
+                                       $modules[] = $path;
+                               }
+                       }
+               } else {
+                       $modules = [];
+               }
+
+               if ( is_array( $params['querymodules'] ) ) {
+                       $queryModules = $params['querymodules'];
+                       foreach ( $queryModules as $m ) {
+                               $modules[] = 'query+' . $m;
+                       }
+               } else {
+                       $queryModules = [];
+               }
+
+               if ( is_array( $params['formatmodules'] ) ) {
+                       $formatModules = $params['formatmodules'];
+                       foreach ( $formatModules as $m ) {
+                               $modules[] = $m;
+                       }
+               } else {
+                       $formatModules = [];
+               }
+
+               $modules = array_unique( $modules );
+
+               $res = [];
+
+               foreach ( $modules as $m ) {
+                       try {
+                               $module = $this->getModuleFromPath( $m );
+                       } catch ( ApiUsageException $ex ) {
+                               foreach ( $ex->getStatusValue()->getErrors() as $error ) {
+                                       $this->addWarning( $error );
+                               }
+                               continue;
+                       }
+                       $key = 'modules';
+
+                       // Back compat
+                       $isBCQuery = false;
+                       if ( $module->getParent() && $module->getParent()->getModuleName() == 'query' &&
+                               in_array( $module->getModuleName(), $queryModules )
+                       ) {
+                               $isBCQuery = true;
+                               $key = 'querymodules';
+                       }
+                       if ( in_array( $module->getModuleName(), $formatModules ) ) {
+                               $key = 'formatmodules';
+                       }
+
+                       $item = $this->getModuleInfo( $module );
+                       if ( $isBCQuery ) {
+                               $item['querytype'] = $item['group'];
+                       }
+                       $res[$key][] = $item;
+               }
+
                $result = $this->getResult();
-               $queryObj = new ApiQuery( $this->getMain(), 'query' );
-               $r = array();
-               if ( is_array( $params['modules'] ) )
-               {
-                       $modArr = $this->getMain()->getModules();
-                       $r['modules'] = array();
-                       foreach ( $params['modules'] as $m )
-                       {
-                               if ( !isset( $modArr[$m] ) )
-                               {
-                                       $r['modules'][] = array( 'name' => $m, 'missing' => '' );
-                                       continue;
-                               }
-                               $obj = new $modArr[$m]( $this->getMain(), $m );
-                               $a = $this->getClassInfo( $obj );
-                               $a['name'] = $m;
-                               $r['modules'][] = $a;
-                       }
-                       $result->setIndexedTagName( $r['modules'], 'module' );
-               }
-               if ( is_array( $params['querymodules'] ) )
-               {
-                       $qmodArr = $queryObj->getModules();
-                       $r['querymodules'] = array();
-                       foreach ( $params['querymodules'] as $qm )
-                       {
-                               if ( !isset( $qmodArr[$qm] ) )
-                               {
-                                       $r['querymodules'][] = array( 'name' => $qm, 'missing' => '' );
-                                       continue;
-                               }
-                               $obj = new $qmodArr[$qm]( $this, $qm );
-                               $a = $this->getClassInfo( $obj );
-                               $a['name'] = $qm;
-                               $r['querymodules'][] = $a;
-                       }
-                       $result->setIndexedTagName( $r['querymodules'], 'module' );
-               }
-               if ( $params['mainmodule'] )
-                       $r['mainmodule'] = $this->getClassInfo( $this->getMain() );
-               if ( $params['pagesetmodule'] )
-               {
-                       $pageSet = new ApiPageSet( $queryObj );
-                       $r['pagesetmodule'] = $this->getClassInfo( $pageSet );
-               }
-               $result->addValue( null, $this->getModuleName(), $r );
+               $result->addValue( [ $this->getModuleName() ], 'helpformat', $this->helpFormat );
+
+               foreach ( $res as $key => $stuff ) {
+                       ApiResult::setIndexedTagName( $res[$key], 'module' );
+               }
+
+               if ( $params['mainmodule'] ) {
+                       $res['mainmodule'] = $this->getModuleInfo( $this->getMain() );
+               }
+
+               if ( $params['pagesetmodule'] ) {
+                       $pageSet = new ApiPageSet( $this->getMain()->getModuleManager()->getModule( 'query' ) );
+                       $res['pagesetmodule'] = $this->getModuleInfo( $pageSet );
+                       unset( $res['pagesetmodule']['name'] );
+                       unset( $res['pagesetmodule']['path'] );
+                       unset( $res['pagesetmodule']['group'] );
+               }
+
+               $result->addValue( null, $this->getModuleName(), $res );
        }
 
-       function getClassInfo( $obj )
-       {
-               $result = $this->getResult();
-               $retval['classname'] = get_class( $obj );
-               $retval['description'] = implode( "\n", (array)$obj->getDescription() );
-               $retval['version'] = implode( "\n", (array)$obj->getVersion() );
-               $retval['prefix'] = $obj->getModulePrefix();
-
-               if ( $obj->isReadMode() )
-                       $retval['readrights'] = '';
-               if ( $obj->isWriteMode() )
-                       $retval['writerights'] = '';
-               if ( $obj->mustBePosted() )
-                       $retval['mustbeposted'] = '';
-               if ( $obj instanceof ApiQueryGeneratorBase )
-                       $retval['generator'] = '';
-
-               $allowedParams = $obj->getFinalParams();
-               if ( !is_array( $allowedParams ) )
-                       return $retval;
-       
-               $retval['parameters'] = array();
-               $paramDesc = $obj->getFinalParamDescription();
-               foreach ( $allowedParams as $n => $p )
-               {
-                       $a = array( 'name' => $n );
-                       if ( isset( $paramDesc[$n] ) )
-                               $a['description'] = implode( "\n", (array)$paramDesc[$n] );
-                       if ( isset( $p[ApiBase::PARAM_DEPRECATED] ) && $p[ApiBase::PARAM_DEPRECATED] )
-                               $a['deprecated'] = '';
-                       if ( !is_array( $p ) )
-                       {
-                               if ( is_bool( $p ) )
-                               {
-                                       $a['type'] = 'bool';
-                                       $a['default'] = ( $p ? 'true' : 'false' );
-                               }
-                               else if ( is_string( $p ) || is_null( $p ) )
-                               {
-                                       $a['type'] = 'string';
-                                       $a['default'] = strval( $p );
-                               }
-                               else if ( is_int( $p ) )
-                               {
-                                       $a['type'] = 'integer';
-                                       $a['default'] = intval( $p );
-                               }
-                               $retval['parameters'][] = $a;
-                               continue;
+       /**
+        * List all submodules of a module
+        * @param ApiBase $module
+        * @param bool $recursive
+        * @return string[]
+        */
+       private function listAllSubmodules( ApiBase $module, $recursive ) {
+               $manager = $module->getModuleManager();
+               if ( $manager ) {
+                       $paths = [];
+                       $names = $manager->getNames();
+                       sort( $names );
+                       foreach ( $names as $name ) {
+                               $submodule = $manager->getModule( $name );
+                               $paths[] = $submodule->getModulePath();
+                               if ( $recursive && $submodule->getModuleManager() ) {
+                                       $paths = array_merge( $paths, $this->listAllSubmodules( $submodule, $recursive ) );
+                               }
+                       }
+               }
+               return $paths;
+       }
+
+       /**
+        * @param array &$res Result array
+        * @param string $key Result key
+        * @param Message[] $msgs
+        * @param bool $joinLists
+        */
+       protected function formatHelpMessages( array &$res, $key, array $msgs, $joinLists = false ) {
+               switch ( $this->helpFormat ) {
+                       case 'none':
+                               break;
+
+                       case 'wikitext':
+                               $ret = [];
+                               foreach ( $msgs as $m ) {
+                                       $ret[] = $m->setContext( $this->context )->text();
+                               }
+                               $res[$key] = implode( "\n\n", $ret );
+                               if ( $joinLists ) {
+                                       $res[$key] = preg_replace( '!^(([*#:;])[^\n]*)\n\n(?=\2)!m', "$1\n", $res[$key] );
+                               }
+                               break;
+
+                       case 'html':
+                               $ret = [];
+                               foreach ( $msgs as $m ) {
+                                       $ret[] = $m->setContext( $this->context )->parseAsBlock();
+                               }
+                               $ret = implode( "\n", $ret );
+                               if ( $joinLists ) {
+                                       $ret = preg_replace( '!\s*</([oud]l)>\s*<\1>\s*!', "\n", $ret );
+                               }
+                               $res[$key] = Parser::stripOuterParagraph( $ret );
+                               break;
+
+                       case 'raw':
+                               $res[$key] = [];
+                               foreach ( $msgs as $m ) {
+                                       $a = [
+                                               'key' => $m->getKey(),
+                                               'params' => $m->getParams(),
+                                       ];
+                                       ApiResult::setIndexedTagName( $a['params'], 'param' );
+                                       if ( $m instanceof ApiHelpParamValueMessage ) {
+                                               $a['forvalue'] = $m->getParamValue();
+                                       }
+                                       $res[$key][] = $a;
+                               }
+                               ApiResult::setIndexedTagName( $res[$key], 'msg' );
+                               break;
+               }
+       }
+
+       /**
+        * @param ApiBase $module
+        * @return array
+        */
+       private function getModuleInfo( $module ) {
+               $ret = [];
+               $path = $module->getModulePath();
+
+               $ret['name'] = $module->getModuleName();
+               $ret['classname'] = get_class( $module );
+               $ret['path'] = $path;
+               if ( !$module->isMain() ) {
+                       $ret['group'] = $module->getParent()->getModuleManager()->getModuleGroup(
+                               $module->getModuleName()
+                       );
+               }
+               $ret['prefix'] = $module->getModulePrefix();
+
+               $sourceInfo = $module->getModuleSourceInfo();
+               if ( $sourceInfo ) {
+                       $ret['source'] = $sourceInfo['name'];
+                       if ( isset( $sourceInfo['namemsg'] ) ) {
+                               $ret['sourcename'] = $this->context->msg( $sourceInfo['namemsg'] )->text();
+                       } else {
+                               $ret['sourcename'] = $ret['source'];
+                       }
+
+                       $link = SpecialPage::getTitleFor( 'Version', 'License/' . $sourceInfo['name'] )->getFullURL();
+                       if ( isset( $sourceInfo['license-name'] ) ) {
+                               $ret['licensetag'] = $sourceInfo['license-name'];
+                               $ret['licenselink'] = (string)$link;
+                       } elseif ( SpecialVersion::getExtLicenseFileName( dirname( $sourceInfo['path'] ) ) ) {
+                               $ret['licenselink'] = (string)$link;
+                       }
+               }
+
+               $this->formatHelpMessages( $ret, 'description', $module->getFinalDescription() );
+
+               foreach ( $module->getHelpFlags() as $flag ) {
+                       $ret[$flag] = true;
+               }
+
+               $ret['helpurls'] = (array)$module->getHelpUrls();
+               if ( isset( $ret['helpurls'][0] ) && $ret['helpurls'][0] === false ) {
+                       $ret['helpurls'] = [];
+               }
+               ApiResult::setIndexedTagName( $ret['helpurls'], 'helpurl' );
+
+               if ( $this->helpFormat !== 'none' ) {
+                       $ret['examples'] = [];
+                       $examples = $module->getExamplesMessages();
+                       foreach ( $examples as $qs => $msg ) {
+                               $item = [
+                                       'query' => $qs
+                               ];
+                               $msg = ApiBase::makeMessage( $msg, $this->context, [
+                                       $module->getModulePrefix(),
+                                       $module->getModuleName(),
+                                       $module->getModulePath()
+                               ] );
+                               $this->formatHelpMessages( $item, 'description', [ $msg ] );
+                               if ( isset( $item['description'] ) ) {
+                                       if ( is_array( $item['description'] ) ) {
+                                               $item['description'] = $item['description'][0];
+                                       } else {
+                                               ApiResult::setSubelementsList( $item, 'description' );
+                                       }
+                               }
+                               $ret['examples'][] = $item;
                        }
+                       ApiResult::setIndexedTagName( $ret['examples'], 'example' );
+               }
 
-                       if ( isset( $p[ApiBase::PARAM_DFLT] ) )
-                               $a['default'] = $p[ApiBase::PARAM_DFLT];
-                       if ( isset( $p[ApiBase::PARAM_ISMULTI] ) )
-                               if ( $p[ApiBase::PARAM_ISMULTI] )
-                               {
-                                       $a['multi'] = '';
-                                       $a['limit'] = $this->getMain()->canApiHighLimits() ?
-                                                       ApiBase::LIMIT_SML2 :
-                                                       ApiBase::LIMIT_SML1;
-                               }
-
-                       if ( isset( $p[ApiBase::PARAM_ALLOW_DUPLICATES] ) )
-                               if ( $p[ApiBase::PARAM_ALLOW_DUPLICATES] )
-                                       $a['allowsduplicates'] = '';
-
-                       if ( isset( $p[ApiBase::PARAM_TYPE] ) )
-                       {
-                               $a['type'] = $p[ApiBase::PARAM_TYPE];
-                               if ( is_array( $a['type'] ) )
-                                       $result->setIndexedTagName( $a['type'], 't' );
-                       }
-                       if ( isset( $p[ApiBase::PARAM_MAX] ) )
-                               $a['max'] = $p[ApiBase::PARAM_MAX];
-                       if ( isset( $p[ApiBase::PARAM_MAX2] ) )
-                               $a['highmax'] = $p[ApiBase::PARAM_MAX2];
-                       if ( isset( $p[ApiBase::PARAM_MIN] ) )
-                               $a['min'] = $p[ApiBase::PARAM_MIN];
-                       $retval['parameters'][] = $a;
-               }
-               $result->setIndexedTagName( $retval['parameters'], 'param' );
-               
-               // Errors
-               $retval['errors'] = $this->parseErrors( $obj->getPossibleErrors() );
-               
-               $result->setIndexedTagName( $retval['errors'], 'error' );
-               
-               return $retval;
+               $ret['parameters'] = [];
+               $params = $module->getFinalParams( ApiBase::GET_VALUES_FOR_HELP );
+               $paramDesc = $module->getFinalParamDescription();
+               foreach ( $params as $name => $settings ) {
+                       if ( !is_array( $settings ) ) {
+                               $settings = [ ApiBase::PARAM_DFLT => $settings ];
+                       }
+
+                       $item = [
+                               'name' => $name
+                       ];
+                       if ( isset( $paramDesc[$name] ) ) {
+                               $this->formatHelpMessages( $item, 'description', $paramDesc[$name], true );
+                       }
+
+                       $item['required'] = !empty( $settings[ApiBase::PARAM_REQUIRED] );
+
+                       if ( !empty( $settings[ApiBase::PARAM_DEPRECATED] ) ) {
+                               $item['deprecated'] = true;
+                       }
+
+                       if ( $name === 'token' && $module->needsToken() ) {
+                               $item['tokentype'] = $module->needsToken();
+                       }
+
+                       if ( !isset( $settings[ApiBase::PARAM_TYPE] ) ) {
+                               $dflt = isset( $settings[ApiBase::PARAM_DFLT] )
+                                       ? $settings[ApiBase::PARAM_DFLT]
+                                       : null;
+                               if ( is_bool( $dflt ) ) {
+                                       $settings[ApiBase::PARAM_TYPE] = 'boolean';
+                               } elseif ( is_string( $dflt ) || is_null( $dflt ) ) {
+                                       $settings[ApiBase::PARAM_TYPE] = 'string';
+                               } elseif ( is_int( $dflt ) ) {
+                                       $settings[ApiBase::PARAM_TYPE] = 'integer';
+                               }
+                       }
+
+                       if ( isset( $settings[ApiBase::PARAM_DFLT] ) ) {
+                               switch ( $settings[ApiBase::PARAM_TYPE] ) {
+                                       case 'boolean':
+                                               $item['default'] = (bool)$settings[ApiBase::PARAM_DFLT];
+                                               break;
+                                       case 'string':
+                                       case 'text':
+                                       case 'password':
+                                               $item['default'] = strval( $settings[ApiBase::PARAM_DFLT] );
+                                               break;
+                                       case 'integer':
+                                       case 'limit':
+                                               $item['default'] = intval( $settings[ApiBase::PARAM_DFLT] );
+                                               break;
+                                       case 'timestamp':
+                                               $item['default'] = wfTimestamp( TS_ISO_8601, $settings[ApiBase::PARAM_DFLT] );
+                                               break;
+                                       default:
+                                               $item['default'] = $settings[ApiBase::PARAM_DFLT];
+                                               break;
+                               }
+                       }
+
+                       $item['multi'] = !empty( $settings[ApiBase::PARAM_ISMULTI] );
+                       if ( $item['multi'] ) {
+                               $item['lowlimit'] = !empty( $settings[ApiBase::PARAM_ISMULTI_LIMIT1] )
+                                       ? $settings[ApiBase::PARAM_ISMULTI_LIMIT1]
+                                       : ApiBase::LIMIT_SML1;
+                               $item['highlimit'] = !empty( $settings[ApiBase::PARAM_ISMULTI_LIMIT2] )
+                                       ? $settings[ApiBase::PARAM_ISMULTI_LIMIT2]
+                                       : ApiBase::LIMIT_SML2;
+                               $item['limit'] = $this->getMain()->canApiHighLimits()
+                                       ? $item['highlimit']
+                                       : $item['lowlimit'];
+                       }
+
+                       if ( !empty( $settings[ApiBase::PARAM_ALLOW_DUPLICATES] ) ) {
+                               $item['allowsduplicates'] = true;
+                       }
+
+                       if ( isset( $settings[ApiBase::PARAM_TYPE] ) ) {
+                               if ( $settings[ApiBase::PARAM_TYPE] === 'submodule' ) {
+                                       if ( isset( $settings[ApiBase::PARAM_SUBMODULE_MAP] ) ) {
+                                               ksort( $settings[ApiBase::PARAM_SUBMODULE_MAP] );
+                                               $item['type'] = array_keys( $settings[ApiBase::PARAM_SUBMODULE_MAP] );
+                                               $item['submodules'] = $settings[ApiBase::PARAM_SUBMODULE_MAP];
+                                       } else {
+                                               $item['type'] = $module->getModuleManager()->getNames( $name );
+                                               sort( $item['type'] );
+                                               $prefix = $module->isMain()
+                                                       ? '' : ( $module->getModulePath() . '+' );
+                                               $item['submodules'] = [];
+                                               foreach ( $item['type'] as $v ) {
+                                                       $item['submodules'][$v] = $prefix . $v;
+                                               }
+                                       }
+                                       if ( isset( $settings[ApiBase::PARAM_SUBMODULE_PARAM_PREFIX] ) ) {
+                                               $item['submoduleparamprefix'] = $settings[ApiBase::PARAM_SUBMODULE_PARAM_PREFIX];
+                                       }
+
+                                       $deprecatedSubmodules = [];
+                                       foreach ( $item['submodules'] as $v => $submodulePath ) {
+                                               try {
+                                                       $submod = $this->getModuleFromPath( $submodulePath );
+                                                       if ( $submod && $submod->isDeprecated() ) {
+                                                               $deprecatedSubmodules[] = $v;
+                                                       }
+                                               } catch ( ApiUsageException $ex ) {
+                                                       // Ignore
+                                               }
+                                       }
+                                       if ( $deprecatedSubmodules ) {
+                                               $item['type'] = array_merge(
+                                                       array_diff( $item['type'], $deprecatedSubmodules ),
+                                                       $deprecatedSubmodules
+                                               );
+                                               $item['deprecatedvalues'] = $deprecatedSubmodules;
+                                       }
+                               } elseif ( $settings[ApiBase::PARAM_TYPE] === 'tags' ) {
+                                       $item['type'] = ChangeTags::listExplicitlyDefinedTags();
+                               } else {
+                                       $item['type'] = $settings[ApiBase::PARAM_TYPE];
+                               }
+                               if ( is_array( $item['type'] ) ) {
+                                       // To prevent sparse arrays from being serialized to JSON as objects
+                                       $item['type'] = array_values( $item['type'] );
+                                       ApiResult::setIndexedTagName( $item['type'], 't' );
+                               }
+
+                               // Add 'allspecifier' if applicable
+                               if ( $item['type'] === 'namespace' ) {
+                                       $allowAll = true;
+                                       $allSpecifier = ApiBase::ALL_DEFAULT_STRING;
+                               } else {
+                                       $allowAll = isset( $settings[ApiBase::PARAM_ALL] )
+                                               ? $settings[ApiBase::PARAM_ALL]
+                                               : false;
+                                       $allSpecifier = ( is_string( $allowAll ) ? $allowAll : ApiBase::ALL_DEFAULT_STRING );
+                               }
+                               if ( $allowAll && $item['multi'] &&
+                                       ( is_array( $item['type'] ) || $item['type'] === 'namespace' ) ) {
+                                       $item['allspecifier'] = $allSpecifier;
+                               }
+
+                               if ( $item['type'] === 'namespace' &&
+                                       isset( $settings[ApiBase::PARAM_EXTRA_NAMESPACES] ) &&
+                                       is_array( $settings[ApiBase::PARAM_EXTRA_NAMESPACES] )
+                               ) {
+                                       $item['extranamespaces'] = $settings[ApiBase::PARAM_EXTRA_NAMESPACES];
+                                       ApiResult::setArrayType( $item['extranamespaces'], 'array' );
+                                       ApiResult::setIndexedTagName( $item['extranamespaces'], 'ns' );
+                               }
+                       }
+                       if ( isset( $settings[ApiBase::PARAM_MAX] ) ) {
+                               $item['max'] = $settings[ApiBase::PARAM_MAX];
+                       }
+                       if ( isset( $settings[ApiBase::PARAM_MAX2] ) ) {
+                               $item['highmax'] = $settings[ApiBase::PARAM_MAX2];
+                       }
+                       if ( isset( $settings[ApiBase::PARAM_MIN] ) ) {
+                               $item['min'] = $settings[ApiBase::PARAM_MIN];
+                       }
+                       if ( !empty( $settings[ApiBase::PARAM_RANGE_ENFORCE] ) ) {
+                               $item['enforcerange'] = true;
+                       }
+                       if ( !empty( $settings[ApiBase::PARAM_DEPRECATED_VALUES] ) ) {
+                               $deprecatedValues = array_keys( $settings[ApiBase::PARAM_DEPRECATED_VALUES] );
+                               if ( is_array( $item['type'] ) ) {
+                                       $deprecatedValues = array_intersect( $deprecatedValues, $item['type'] );
+                               }
+                               if ( $deprecatedValues ) {
+                                       $item['deprecatedvalues'] = array_values( $deprecatedValues );
+                                       ApiResult::setIndexedTagName( $item['deprecatedvalues'], 'v' );
+                               }
+                       }
+
+                       if ( !empty( $settings[ApiBase::PARAM_HELP_MSG_INFO] ) ) {
+                               $item['info'] = [];
+                               foreach ( $settings[ApiBase::PARAM_HELP_MSG_INFO] as $i ) {
+                                       $tag = array_shift( $i );
+                                       $info = [
+                                               'name' => $tag,
+                                       ];
+                                       if ( count( $i ) ) {
+                                               $info['values'] = $i;
+                                               ApiResult::setIndexedTagName( $info['values'], 'v' );
+                                       }
+                                       $this->formatHelpMessages( $info, 'text', [
+                                               $this->context->msg( "apihelp-{$path}-paraminfo-{$tag}" )
+                                                       ->numParams( count( $i ) )
+                                                       ->params( $this->context->getLanguage()->commaList( $i ) )
+                                                       ->params( $module->getModulePrefix() )
+                                       ] );
+                                       ApiResult::setSubelementsList( $info, 'text' );
+                                       $item['info'][] = $info;
+                               }
+                               ApiResult::setIndexedTagName( $item['info'], 'i' );
+                       }
+
+                       $ret['parameters'][] = $item;
+               }
+               ApiResult::setIndexedTagName( $ret['parameters'], 'param' );
+
+               $dynamicParams = $module->dynamicParameterDocumentation();
+               if ( $dynamicParams !== null ) {
+                       if ( $this->helpFormat === 'none' ) {
+                               $ret['dynamicparameters'] = true;
+                       } else {
+                               $dynamicParams = ApiBase::makeMessage( $dynamicParams, $this->context, [
+                                       $module->getModulePrefix(),
+                                       $module->getModuleName(),
+                                       $module->getModulePath()
+                               ] );
+                               $this->formatHelpMessages( $ret, 'dynamicparameters', [ $dynamicParams ] );
+                       }
+               }
+
+               return $ret;
        }
 
        public function isReadMode() {
@@ -184,38 +531,51 @@ class ApiParamInfo extends ApiBase {
        }
 
        public function getAllowedParams() {
-               return array (
-                       'modules' => array(
-                               ApiBase :: PARAM_ISMULTI => true
-                       ),
-                       'querymodules' => array(
-                               ApiBase :: PARAM_ISMULTI => true
-                       ),
-                       'mainmodule' => false,
-                       'pagesetmodule' => false,
-               );
-       }
+               // back compat
+               $querymodules = $this->getMain()->getModuleManager()
+                       ->getModule( 'query' )->getModuleManager()->getNames();
+               sort( $querymodules );
+               $formatmodules = $this->getMain()->getModuleManager()->getNames( 'format' );
+               sort( $formatmodules );
 
-       public function getParamDescription() {
-               return array (
-                       'modules' => 'List of module names (value of the action= parameter)',
-                       'querymodules' => 'List of query module names (value of prop=, meta= or list= parameter)',
-                       'mainmodule' => 'Get information about the main (top-level) module as well',
-                       'pagesetmodule' => 'Get information about the pageset module (providing titles= and friends) as well',
-               );
-       }
+               return [
+                       'modules' => [
+                               ApiBase::PARAM_ISMULTI => true,
+                       ],
+                       'helpformat' => [
+                               ApiBase::PARAM_DFLT => 'none',
+                               ApiBase::PARAM_TYPE => [ 'html', 'wikitext', 'raw', 'none' ],
+                       ],
 
-       public function getDescription() {
-               return 'Obtain information about certain API parameters';
+                       'querymodules' => [
+                               ApiBase::PARAM_DEPRECATED => true,
+                               ApiBase::PARAM_ISMULTI => true,
+                               ApiBase::PARAM_TYPE => $querymodules,
+                       ],
+                       'mainmodule' => [
+                               ApiBase::PARAM_DEPRECATED => true,
+                       ],
+                       'pagesetmodule' => [
+                               ApiBase::PARAM_DEPRECATED => true,
+                       ],
+                       'formatmodules' => [
+                               ApiBase::PARAM_DEPRECATED => true,
+                               ApiBase::PARAM_ISMULTI => true,
+                               ApiBase::PARAM_TYPE => $formatmodules,
+                       ]
+               ];
        }
 
-       protected function getExamples() {
-               return array (
-                       'api.php?action=paraminfo&modules=parse&querymodules=allpages|siteinfo'
-               );
+       protected function getExamplesMessages() {
+               return [
+                       'action=paraminfo&modules=parse|phpfm|query%2Ballpages|query%2Bsiteinfo'
+                               => 'apihelp-paraminfo-example-1',
+                       'action=paraminfo&modules=query%2B*'
+                               => 'apihelp-paraminfo-example-2',
+               ];
        }
 
-       public function getVersion() {
-               return __CLASS__ . ': $Id: ApiParamInfo.php 62336 2010-02-11 22:22:20Z reedy $';
+       public function getHelpUrls() {
+               return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Parameter_information';
        }
 }