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

Issues (4122)

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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.

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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.

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includes/api/ApiUndelete.php (3 issues)

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<?php
/**
 *
 *
 * Created on Jul 3, 2007
 *
 * Copyright © 2007 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 ApiUndelete extends ApiBase {

	public function execute() {
		$this->useTransactionalTimeLimit();

		$params = $this->extractRequestParams();
		$user = $this->getUser();
		if ( !$user->isAllowed( 'undelete' ) ) {
			$this->dieUsageMsg( 'permdenied-undelete' );
		}

		if ( $user->isBlocked() ) {
			$this->dieBlocked( $user->getBlock() );
/** @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);
    }
}
		}

		$titleObj = Title::newFromText( $params['title'] );
		if ( !$titleObj || $titleObj->isExternal() ) {
			$this->dieUsageMsg( [ 'invalidtitle', $params['title'] ] );
		}

		// Check if user can add tags
		if ( !is_null( $params['tags'] ) ) {
			$ableToTag = ChangeTags::canAddTagsAccompanyingChange( $params['tags'], $user );
			if ( !$ableToTag->isOK() ) {
				$this->dieStatus( $ableToTag );
			}
		}

		// Convert timestamps
		if ( !isset( $params['timestamps'] ) ) {
			$params['timestamps'] = [];
		}
		if ( !is_array( $params['timestamps'] ) ) {
			$params['timestamps'] = [ $params['timestamps'] ];
		}
		foreach ( $params['timestamps'] as $i => $ts ) {
			$params['timestamps'][$i] = wfTimestamp( TS_MW, $ts );
		}

		$pa = new PageArchive( $titleObj, $this->getConfig() );
		$retval = $pa->undelete(
			( isset( $params['timestamps'] ) ? $params['timestamps'] : [] ),
			$params['reason'],
			$params['fileids'],
			false,
			$user,
			$params['tags']
		);
		if ( !is_array( $retval ) ) {
			$this->dieUsageMsg( 'cannotundelete' );
		}

		if ( $retval[1] ) {
			Hooks::run( 'FileUndeleteComplete',
				[ $titleObj, $params['fileids'], $this->getUser(), $params['reason'] ] );
		}

		$this->setWatch( $params['watchlist'], $titleObj );
/** @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);
    }
}

		$info['title'] = $titleObj->getPrefixedText();
foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}
		$info['revisions'] = intval( $retval[0] );
		$info['fileversions'] = intval( $retval[1] );
		$info['reason'] = $retval[2];
		$this->getResult()->addValue( null, $this->getModuleName(), $info );
	}

	public function mustBePosted() {
		return true;
	}

	public function isWriteMode() {
		return true;
	}

	public function getAllowedParams() {
		return [
			'title' => [
				ApiBase::PARAM_TYPE => 'string',
				ApiBase::PARAM_REQUIRED => true
			],
			'reason' => '',
			'tags' => [
				ApiBase::PARAM_TYPE => 'tags',
				ApiBase::PARAM_ISMULTI => true,
			],
			'timestamps' => [
				ApiBase::PARAM_TYPE => 'timestamp',
				ApiBase::PARAM_ISMULTI => true,
			],
			'fileids' => [
				ApiBase::PARAM_TYPE => 'integer',
				ApiBase::PARAM_ISMULTI => true,
			],
			'watchlist' => [
				ApiBase::PARAM_DFLT => 'preferences',
				ApiBase::PARAM_TYPE => [
					'watch',
					'unwatch',
					'preferences',
					'nochange'
				],
			],
		];
	}

	public function needsToken() {
		return 'csrf';
	}

	protected function getExamplesMessages() {
		return [
			'action=undelete&title=Main%20Page&token=123ABC&reason=Restoring%20main%20page'
				=> 'apihelp-undelete-example-page',
			'action=undelete&title=Main%20Page&token=123ABC' .
				'&timestamps=2007-07-03T22:00:45Z|2007-07-02T19:48:56Z'
				=> 'apihelp-undelete-example-revisions',
		];
	}

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


1		<?php
2		/**
3		*
4		*
5		* Created on Jul 3, 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		* @ingroup API
29		*/
30		class ApiUndelete extends ApiBase {
31
32		public function execute() {
33		$this->useTransactionalTimeLimit();
34
35		$params = $this->extractRequestParams();
36		$user = $this->getUser();
37		if ( !$user->isAllowed( 'undelete' ) ) {
38		$this->dieUsageMsg( 'permdenied-undelete' );
39		}
40
41		if ( $user->isBlocked() ) {
42		$this->dieBlocked( $user->getBlock() );
		0 ignored issues – show Bug introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like `$user->getBlock()` can be `null`; however, `dieBlocked()` does not accept `null`, maybe add an additional type check? Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: /** @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); } } Loading history...
43		}
44
45		$titleObj = Title::newFromText( $params['title'] );
46		if ( !$titleObj \|\| $titleObj->isExternal() ) {
47		$this->dieUsageMsg( [ 'invalidtitle', $params['title'] ] );
48		}
49
50		// Check if user can add tags
51	View Code Duplication	if ( !is_null( $params['tags'] ) ) {
52		$ableToTag = ChangeTags::canAddTagsAccompanyingChange( $params['tags'], $user );
53		if ( !$ableToTag->isOK() ) {
54		$this->dieStatus( $ableToTag );
55		}
56		}
57
58		// Convert timestamps
59		if ( !isset( $params['timestamps'] ) ) {
60		$params['timestamps'] = [];
61		}
62		if ( !is_array( $params['timestamps'] ) ) {
63		$params['timestamps'] = [ $params['timestamps'] ];
64		}
65		foreach ( $params['timestamps'] as $i => $ts ) {
66		$params['timestamps'][$i] = wfTimestamp( TS_MW, $ts );
67		}
68
69		$pa = new PageArchive( $titleObj, $this->getConfig() );
70		$retval = $pa->undelete(
71		( isset( $params['timestamps'] ) ? $params['timestamps'] : [] ),
72		$params['reason'],
73		$params['fileids'],
74		false,
75		$user,
76		$params['tags']
77		);
78		if ( !is_array( $retval ) ) {
79		$this->dieUsageMsg( 'cannotundelete' );
80		}
81
82		if ( $retval[1] ) {
83		Hooks::run( 'FileUndeleteComplete',
84		[ $titleObj, $params['fileids'], $this->getUser(), $params['reason'] ] );
85		}
86
87		$this->setWatch( $params['watchlist'], $titleObj );
		0 ignored issues – show Bug introduced 2016-02-23 18:13 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like `$titleObj` defined by `\Title::newFromText($params['title'])` on line `45` can be `null`; however, `ApiBase::setWatch()` does not accept `null`, maybe add an additional type check? Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: /** @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); } } Loading history...
88
89		$info['title'] = $titleObj->getPrefixedText();
		0 ignored issues – show Coding Style Comprehensibility introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report Show Similar Issues like this `$info` was never initialized. Although not strictly required by PHP, it is generally a good practice to add `$info = array();` before regardless. Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code. Let’s take a look at an example: foreach ($collection as $item) { $myArray['foo'] = $item->getFoo(); if ($item->hasBar()) { $myArray['bar'] = $item->getBar(); } // do something with $myArray } As you can see in this example, the array `$myArray` is initialized the first time when the foreach loop is entered. You can also see that the value of the `bar` key is only written conditionally; thus, its value might result from a previous iteration. This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization `$myArray = array()` either outside or inside the foreach loop. Loading history...
90		$info['revisions'] = intval( $retval[0] );
91		$info['fileversions'] = intval( $retval[1] );
92		$info['reason'] = $retval[2];
93		$this->getResult()->addValue( null, $this->getModuleName(), $info );
94		}
95
96		public function mustBePosted() {
97		return true;
98		}
99
100		public function isWriteMode() {
101		return true;
102		}
103
104		public function getAllowedParams() {
105		return [
106		'title' => [
107		ApiBase::PARAM_TYPE => 'string',
108		ApiBase::PARAM_REQUIRED => true
109		],
110		'reason' => '',
111		'tags' => [
112		ApiBase::PARAM_TYPE => 'tags',
113		ApiBase::PARAM_ISMULTI => true,
114		],
115		'timestamps' => [
116		ApiBase::PARAM_TYPE => 'timestamp',
117		ApiBase::PARAM_ISMULTI => true,
118		],
119		'fileids' => [
120		ApiBase::PARAM_TYPE => 'integer',
121		ApiBase::PARAM_ISMULTI => true,
122		],
123		'watchlist' => [
124		ApiBase::PARAM_DFLT => 'preferences',
125		ApiBase::PARAM_TYPE => [
126		'watch',
127		'unwatch',
128		'preferences',
129		'nochange'
130		],
131		],
132		];
133		}
134
135		public function needsToken() {
136		return 'csrf';
137		}
138
139		protected function getExamplesMessages() {
140		return [
141		'action=undelete&title=Main%20Page&token=123ABC&reason=Restoring%20main%20page'
142		=> 'apihelp-undelete-example-page',
143		'action=undelete&title=Main%20Page&token=123ABC' .
144		'&timestamps=2007-07-03T22:00:45Z\|2007-07-02T19:48:56Z'
145		=> 'apihelp-undelete-example-revisions',
146		];
147		}
148
149		public function getHelpUrls() {
150		return 'https://www.mediawiki.org/wiki/API:Undelete';
151		}
152		}
153

wikimedia / mediawiki

Issues (4122)

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includes/api/ApiUndelete.php (3 issues)

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