wiki.techinc.nl/includes/api/ApiParamInfo.php
Thiemo Mättig 23632a4ecd Use precise ApiMain/ApiQuery type hints in all API modules
Which type is used depends on the ApiModuleManager responsible for
the API module. There are two managers, one in ApiMain and one in
ApiQuery. Both contain a list of API modules they instantiate.
Both use $this as the first parameter in the constructors of the
individual modules. There is no other regular way to instantiate the
modules, so we know the type must either be ApiMain or ApiQuery.

The lists don't intersect.

I would have prefered the naming scheme $mainModule for ApiMain
modules and $queryModule for ApiQuery modules but since this
doesn't add much I left the shorter variable names untouched.

Change-Id: Ie6bf19150f1c9b619655a06a8e051412665e54db
2014-05-16 11:07:23 -04:00

364 lines
10 KiB
PHP

<?php
/**
*
*
* Created on Dec 01, 2007
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* @ingroup API
*/
class ApiParamInfo extends ApiBase {
/**
* @var ApiQuery
*/
protected $queryObj;
public function __construct( ApiMain $main, $action ) {
parent::__construct( $main, $action );
$this->queryObj = new ApiQuery( $this->getMain(), 'query' );
}
public function execute() {
// Get parameters
$params = $this->extractRequestParams();
$resultObj = $this->getResult();
$res = array();
$this->addModulesInfo( $params, 'modules', $res, $resultObj );
$this->addModulesInfo( $params, 'querymodules', $res, $resultObj );
if ( $params['mainmodule'] ) {
$res['mainmodule'] = $this->getClassInfo( $this->getMain() );
}
if ( $params['pagesetmodule'] ) {
$pageSet = new ApiPageSet( $this->queryObj );
$res['pagesetmodule'] = $this->getClassInfo( $pageSet );
}
$this->addModulesInfo( $params, 'formatmodules', $res, $resultObj );
$resultObj->addValue( null, $this->getModuleName(), $res );
}
/**
* If the type is requested in parameters, adds a section to res with module info.
* @param array $params User parameters array
* @param string $type Parameter name
* @param array $res Store results in this array
* @param ApiResult $resultObj Results object to set indexed tag.
*/
private function addModulesInfo( $params, $type, &$res, $resultObj ) {
if ( !is_array( $params[$type] ) ) {
return;
}
$isQuery = ( $type === 'querymodules' );
if ( $isQuery ) {
$mgr = $this->queryObj->getModuleManager();
} else {
$mgr = $this->getMain()->getModuleManager();
}
$res[$type] = array();
foreach ( $params[$type] as $mod ) {
if ( !$mgr->isDefined( $mod ) ) {
$res[$type][] = array( 'name' => $mod, 'missing' => '' );
continue;
}
$obj = $mgr->getModule( $mod );
$item = $this->getClassInfo( $obj );
$item['name'] = $mod;
if ( $isQuery ) {
$item['querytype'] = $mgr->getModuleGroup( $mod );
}
$res[$type][] = $item;
}
$resultObj->setIndexedTagName( $res[$type], 'module' );
}
/**
* @param ApiBase $obj
* @return ApiResult
*/
private function getClassInfo( $obj ) {
$result = $this->getResult();
$retval['classname'] = get_class( $obj );
$retval['description'] = implode( "\n", (array)$obj->getFinalDescription() );
$retval['examples'] = '';
// version is deprecated since 1.21, but needs to be returned for v1
$retval['version'] = '';
$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( ApiBase::GET_VALUES_FOR_HELP );
if ( !is_array( $allowedParams ) ) {
return $retval;
}
$retval['helpurls'] = (array)$obj->getHelpUrls();
if ( isset( $retval['helpurls'][0] ) && $retval['helpurls'][0] === false ) {
$retval['helpurls'] = array();
}
$result->setIndexedTagName( $retval['helpurls'], 'helpurl' );
$examples = $obj->getExamples();
$retval['allexamples'] = array();
if ( $examples !== false ) {
if ( is_string( $examples ) ) {
$examples = array( $examples );
}
foreach ( $examples as $k => $v ) {
if ( strlen( $retval['examples'] ) ) {
$retval['examples'] .= ' ';
}
$item = array();
if ( is_numeric( $k ) ) {
$retval['examples'] .= $v;
ApiResult::setContent( $item, $v );
} else {
if ( !is_array( $v ) ) {
$item['description'] = $v;
} else {
$item['description'] = implode( $v, "\n" );
}
$retval['examples'] .= $item['description'] . ' ' . $k;
ApiResult::setContent( $item, $k );
}
$retval['allexamples'][] = $item;
}
}
$result->setIndexedTagName( $retval['allexamples'], 'example' );
$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] );
}
//handle shorthand
if ( !is_array( $p ) ) {
$p = array(
ApiBase::PARAM_DFLT => $p,
);
}
//handle missing type
if ( !isset( $p[ApiBase::PARAM_TYPE] ) ) {
$dflt = isset( $p[ApiBase::PARAM_DFLT] ) ? $p[ApiBase::PARAM_DFLT] : null;
if ( is_bool( $dflt ) ) {
$p[ApiBase::PARAM_TYPE] = 'boolean';
} elseif ( is_string( $dflt ) || is_null( $dflt ) ) {
$p[ApiBase::PARAM_TYPE] = 'string';
} elseif ( is_int( $dflt ) ) {
$p[ApiBase::PARAM_TYPE] = 'integer';
}
}
if ( isset( $p[ApiBase::PARAM_DEPRECATED] ) && $p[ApiBase::PARAM_DEPRECATED] ) {
$a['deprecated'] = '';
}
if ( isset( $p[ApiBase::PARAM_REQUIRED] ) && $p[ApiBase::PARAM_REQUIRED] ) {
$a['required'] = '';
}
if ( isset( $p[ApiBase::PARAM_DFLT] ) ) {
$type = $p[ApiBase::PARAM_TYPE];
if ( $type === 'boolean' ) {
$a['default'] = ( $p[ApiBase::PARAM_DFLT] ? 'true' : 'false' );
} elseif ( $type === 'string' ) {
$a['default'] = strval( $p[ApiBase::PARAM_DFLT] );
} elseif ( $type === 'integer' ) {
$a['default'] = intval( $p[ApiBase::PARAM_DFLT] );
} else {
$a['default'] = $p[ApiBase::PARAM_DFLT];
}
}
if ( isset( $p[ApiBase::PARAM_ISMULTI] ) && $p[ApiBase::PARAM_ISMULTI] ) {
$a['multi'] = '';
$a['limit'] = $this->getMain()->canApiHighLimits() ?
ApiBase::LIMIT_SML2 :
ApiBase::LIMIT_SML1;
$a['lowlimit'] = ApiBase::LIMIT_SML1;
$a['highlimit'] = ApiBase::LIMIT_SML2;
}
if ( isset( $p[ApiBase::PARAM_ALLOW_DUPLICATES] ) && $p[ApiBase::PARAM_ALLOW_DUPLICATES] ) {
$a['allowsduplicates'] = '';
}
if ( isset( $p[ApiBase::PARAM_TYPE] ) ) {
$a['type'] = $p[ApiBase::PARAM_TYPE];
if ( is_array( $a['type'] ) ) {
// To prevent sparse arrays from being serialized to JSON as objects
$a['type'] = array_values( $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' );
$props = $obj->getFinalResultProperties();
$listResult = null;
if ( $props !== false ) {
$retval['props'] = array();
foreach ( $props as $prop => $properties ) {
$propResult = array();
if ( $prop == ApiBase::PROP_LIST ) {
$listResult = $properties;
continue;
}
if ( $prop != ApiBase::PROP_ROOT ) {
$propResult['name'] = $prop;
}
$propResult['properties'] = array();
foreach ( $properties as $name => $p ) {
$propertyResult = array();
$propertyResult['name'] = $name;
if ( !is_array( $p ) ) {
$p = array( ApiBase::PROP_TYPE => $p );
}
$propertyResult['type'] = $p[ApiBase::PROP_TYPE];
if ( is_array( $propertyResult['type'] ) ) {
$propertyResult['type'] = array_values( $propertyResult['type'] );
$result->setIndexedTagName( $propertyResult['type'], 't' );
}
$nullable = null;
if ( isset( $p[ApiBase::PROP_NULLABLE] ) ) {
$nullable = $p[ApiBase::PROP_NULLABLE];
}
if ( $nullable === true ) {
$propertyResult['nullable'] = '';
}
$propResult['properties'][] = $propertyResult;
}
$result->setIndexedTagName( $propResult['properties'], 'property' );
$retval['props'][] = $propResult;
}
// default is true for query modules, false for other modules, overridden by ApiBase::PROP_LIST
if ( $listResult === true || ( $listResult !== false && $obj instanceof ApiQueryBase ) ) {
$retval['listresult'] = '';
}
$result->setIndexedTagName( $retval['props'], 'prop' );
}
// Errors
$retval['errors'] = $this->parseErrors( $obj->getFinalPossibleErrors() );
$result->setIndexedTagName( $retval['errors'], 'error' );
return $retval;
}
public function isReadMode() {
return false;
}
public function getAllowedParams() {
$modules = $this->getMain()->getModuleManager()->getNames( 'action' );
sort( $modules );
$querymodules = $this->queryObj->getModuleManager()->getNames();
sort( $querymodules );
$formatmodules = $this->getMain()->getModuleManager()->getNames( 'format' );
sort( $formatmodules );
return array(
'modules' => array(
ApiBase::PARAM_ISMULTI => true,
ApiBase::PARAM_TYPE => $modules,
),
'querymodules' => array(
ApiBase::PARAM_ISMULTI => true,
ApiBase::PARAM_TYPE => $querymodules,
),
'mainmodule' => false,
'pagesetmodule' => false,
'formatmodules' => array(
ApiBase::PARAM_ISMULTI => true,
ApiBase::PARAM_TYPE => $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',
'formatmodules' => 'List of format module names (value of format= parameter)',
);
}
public function getDescription() {
return 'Obtain information about certain API parameters and errors.';
}
public function getExamples() {
return array(
'api.php?action=paraminfo&modules=parse&querymodules=allpages|siteinfo'
);
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/API:Parameter_information';
}
}