Issues in ApiParamInfo.php (master) - Issues in master - wikimedia/mediawiki - Measure and Improve Code Quality continuously with Scrutinizer

Issues (4122)

Security Analysis not enabled

Cross-Site Scripting

Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.

File Exposure

File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.

File Manipulation

File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.

Object Injection

Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.

Code Injection

Code Injection enables an attacker to execute arbitrary code on the server.

Response Splitting

Response Splitting can be used to send arbitrary responses.

File Inclusion

File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.

Command Injection

Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.

SQL Injection

SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.

XPath Injection

XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.

LDAP Injection

LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.

Header Injection

Other Vulnerability

This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.

Regex Injection

Regex Injection enables an attacker to execute arbitrary code in your PHP process.

XML Injection

XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.

Variable Injection

Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.

Unfortunately, the security analysis is currently not available for your project. If you are a non-commercial open-source project, please contact support to gain access.

includes/api/ApiParamInfo.php (9 issues)

Labels

Severity

Upgrade to new PHP Analysis Engine

These results are based on our legacy PHP analysis, consider migrating to our new PHP analysis engine instead. Learn more

<?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 {

	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 ( UsageException $ex ) {
						$this->setWarning( $ex->getMessage() );
					}
					$submodules = $this->listAllSubmodules( $module, $recursive );
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
					if ( $submodules ) {
						$modules = array_merge( $modules, $submodules );
					} else {
						$this->setWarning( "Module $path has no submodules" );
					}
				} 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 ( UsageException $ex ) {
				$this->setWarning( $ex->getMessage() );
				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 );
/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
			if ( $isBCQuery ) {
				$item['querytype'] = $item['group'];
			}
			$res[$key][] = $item;
		}

		$result = $this->getResult();
		$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' ) );
/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
			$res['pagesetmodule'] = $this->getModuleInfo( $pageSet );
			unset( $res['pagesetmodule']['name'] );
			unset( $res['pagesetmodule']['path'] );
			unset( $res['pagesetmodule']['group'] );
		}

		$result->addValue( null, $this->getModuleName(), $res );
	}

	/**
	 * List all submodules of a module
	 * @param ApiBase $module
	 * @param boolean $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 stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
				}
			}
		}
		return $paths;
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
	}

	/**
	 * @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 ApiResult
	 */
	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'] ) ) ) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
				$ret['licenselink'] = (string)$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' );
		}

		$ret['parameters'] = [];
		$params = $module->getFinalParams( ApiBase::GET_VALUES_FOR_HELP );
		$paramDesc = $module->getFinalParamDescription();
		foreach ( $params as $name => $settings ) {
$collection = json_decode($data, true);
if ( ! is_array($collection)) {
    throw new \RuntimeException('$collection must be an array.');
}

foreach ($collection as $item) { /** ... */ }
			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['limit'] = $this->getMain()->canApiHighLimits() ?
					ApiBase::LIMIT_SML2 :
					ApiBase::LIMIT_SML1;
				$item['lowlimit'] = ApiBase::LIMIT_SML1;
				$item['highlimit'] = ApiBase::LIMIT_SML2;
			}

			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];
					}
				} 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' );
				}
			}
			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_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() {
		return false;
	}

	public function getAllowedParams() {
		// back compat
		$querymodules = $this->getMain()->getModuleManager()
			->getModule( 'query' )->getModuleManager()->getNames();
		sort( $querymodules );
		$formatmodules = $this->getMain()->getModuleManager()->getNames( 'format' );
		sort( $formatmodules );

		return [
			'modules' => [
				ApiBase::PARAM_ISMULTI => true,
			],
			'helpformat' => [
				ApiBase::PARAM_DFLT => 'none',
				ApiBase::PARAM_TYPE => [ 'html', 'wikitext', 'raw', 'none' ],
			],

			'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 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 getHelpUrls() {
		return 'https://www.mediawiki.org/wiki/API:Parameter_information';
	}
}


Issues (4122)

Security Analysis not enabled

includes/api/ApiParamInfo.php (9 issues)

Labels

Severity

Introduced By

Upgrade to new PHP Analysis Engine

Available Fixes

Available Fixes

wikimedia / mediawiki

Issues (4122)

Security Analysis not enabled

includes/api/ApiParamInfo.php (9 issues)

Labels

Severity

Introduced By

Upgrade to new PHP Analysis Engine

Available Fixes

Available Fixes

Duplication Side-by-Side

Filter issues like