Issues in RawAction.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.

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/actions/RawAction.php (5 issues)

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<?php
/**
 * Raw page text accessor
 *
 * Copyright © 2004 Gabriel Wicke <[email protected]>
 * http://wikidev.net/
 *
 * Based on HistoryAction and SpecialExport
 *
 * 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
 *
 * @author Gabriel Wicke <[email protected]>
 * @file
 */

/**
 * A simple method to retrieve the plain source of an article,
 * using "action=raw" in the GET request string.
 *
 * @ingroup Actions
 */
class RawAction extends FormlessAction {
	public function getName() {
		return 'raw';
	}

	public function requiresWrite() {
		return false;
	}

	public function requiresUnblock() {
		return false;
	}

	function onView() {
		$this->getOutput()->disable();
		$request = $this->getRequest();
		$response = $request->response();
		$config = $this->context->getConfig();

		if ( !$request->checkUrlExtension() ) {
			return;
		}

		if ( $this->getOutput()->checkLastModified( $this->page->getTouched() ) ) {
class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}
			return; // Client cache fresh and headers sent, nothing more to do.
		}

		$gen = $request->getVal( 'gen' );
		if ( $gen == 'css' || $gen == 'js' ) {
			$this->gen = true;
class MyClass { }

$x = new MyClass();
$x->foo = true;
		}

		$contentType = $this->getContentType();

		$maxage = $request->getInt( 'maxage', $config->get( 'SquidMaxage' ) );
		$smaxage = $request->getIntOrNull( 'smaxage' );
		if ( $smaxage === null ) {
			if ( $contentType == 'text/css' || $contentType == 'text/javascript' ) {
				// CSS/JS raw content has its own CDN max age configuration.
				// Note: Title::getCdnUrls() includes action=raw for css/js pages,
				// so if using the canonical url, this will get HTCP purges.
				$smaxage = intval( $config->get( 'ForcedRawSMaxage' ) );
			} else {
				// No CDN cache for anything else
				$smaxage = 0;
			}
		}

		// Set standard Vary headers so cache varies on cookies and such (T125283)
		$response->header( $this->getOutput()->getVaryHeader() );
		if ( $config->get( 'UseKeyHeader' ) ) {
			$response->header( $this->getOutput()->getKeyHeader() );
		}

		$response->header( 'Content-type: ' . $contentType . '; charset=UTF-8' );
		// Output may contain user-specific data;
		// vary generated content for open sessions on private wikis
		$privateCache = !User::isEveryoneAllowed( 'read' ) &&
			( $smaxage == 0 || MediaWiki\Session\SessionManager::getGlobalSession()->isPersistent() );
		// Don't accidentally cache cookies if user is logged in (T55032)
		$privateCache = $privateCache || $this->getUser()->isLoggedIn();
		$mode = $privateCache ? 'private' : 'public';
		$response->header(
			'Cache-Control: ' . $mode . ', s-maxage=' . $smaxage . ', max-age=' . $maxage
		);

		$text = $this->getRawText();

		// Don't return a 404 response for CSS or JavaScript;
		// 404s aren't generally cached and it would create
		// extra hits when user CSS/JS are on and the user doesn't
		// have the pages.
		if ( $text === false && $contentType == 'text/x-wiki' ) {
			$response->statusHeader( 404 );
		}

		if ( !Hooks::run( 'RawPageViewBeforeOutput', [ &$this, &$text ] ) ) {
			wfDebug( __METHOD__ . ": RawPageViewBeforeOutput hook broke raw page output.\n" );
		}

		echo $text;
	}

	/**
	 * Get the text that should be returned, or false if the page or revision
	 * was not found.
	 *
	 * @return string|bool
	 */
	public function getRawText() {
		global $wgParser;

		$text = false;
		$title = $this->getTitle();
		$request = $this->getRequest();

		// If it's a MediaWiki message we can just hit the message cache
		if ( $request->getBool( 'usemsgcache' ) && $title->getNamespace() == NS_MEDIAWIKI ) {
			// The first "true" is to use the database, the second is to use
			// the content langue and the last one is to specify the message
			// key already contains the language in it ("/de", etc.).
			$text = MessageCache::singleton()->get( $title->getDBkey(), true, true, true );
			// If the message doesn't exist, return a blank
			if ( $text === false ) {
				$text = '';
			}
		} else {
			// Get it from the DB
			$rev = Revision::newFromTitle( $title, $this->getOldId() );
			if ( $rev ) {
				$lastmod = wfTimestamp( TS_RFC2822, $rev->getTimestamp() );
				$request->response()->header( "Last-modified: $lastmod" );

				// Public-only due to cache headers
				$content = $rev->getContent();

				if ( $content === null ) {
					// revision not found (or suppressed)
					$text = false;
				} elseif ( !$content instanceof TextContent ) {
					// non-text content
					wfHttpError( 415, "Unsupported Media Type", "The requested page uses the content model `"
						. $content->getModel() . "` which is not supported via this interface." );
					die();

				} else {
					// want a section?
					$section = $request->getIntOrNull( 'section' );
					if ( $section !== null ) {
						$content = $content->getSection( $section );
class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
$object = $a->getObject();
					}

					if ( $content === null || $content === false ) {
						// section not found (or section not supported, e.g. for JS and CSS)
						$text = false;
					} else {
						$text = $content->getNativeData();
					}
				}
			}
		}

		if ( $text !== false && $text !== '' && $request->getVal( 'templates' ) === 'expand' ) {
			$text = $wgParser->preprocess(
				$text,
				$title,
				ParserOptions::newFromContext( $this->getContext() )
			);
		}

		return $text;
	}

	/**
	 * Get the ID of the revision that should used to get the text.
	 *
	 * @return int
	 */
	public function getOldId() {
		$oldid = $this->getRequest()->getInt( 'oldid' );
		switch ( $this->getRequest()->getText( 'direction' ) ) {
			case 'next':
				# output next revision, or nothing if there isn't one
				$nextid = 0;
				if ( $oldid ) {
					$nextid = $this->getTitle()->getNextRevisionID( $oldid );
				}
				$oldid = $nextid ?: -1;
				break;
			case 'prev':
				# output previous revision, or nothing if there isn't one
				if ( !$oldid ) {
					# get the current revision so we can get the penultimate one
					$oldid = $this->page->getLatest();
class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}
				}
				$previd = $this->getTitle()->getPreviousRevisionID( $oldid );
				$oldid = $previd ?: -1;
				break;
			case 'cur':
				$oldid = 0;
				break;
		}

		return $oldid;
	}

	/**
	 * Get the content type to use for the response
	 *
	 * @return string
	 */
	public function getContentType() {
		$ctype = $this->getRequest()->getVal( 'ctype' );

		if ( $ctype == '' ) {
			$gen = $this->getRequest()->getVal( 'gen' );
			if ( $gen == 'js' ) {
				$ctype = 'text/javascript';
			} elseif ( $gen == 'css' ) {
				$ctype = 'text/css';
			}
		}

		$allowedCTypes = [ 'text/x-wiki', 'text/javascript', 'text/css', 'application/x-zope-edit' ];
		if ( $ctype == '' || !in_array( $ctype, $allowedCTypes ) ) {
			$ctype = 'text/x-wiki';
		}

		return $ctype;
	}
}


Issues (4122)

Security Analysis not enabled

includes/actions/RawAction.php (5 issues)

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1			<?php
2			/**
3			* Raw page text accessor
4			*
5			* Copyright © 2004 Gabriel Wicke <[email protected]>
6			* http://wikidev.net/
7			*
8			* Based on HistoryAction and SpecialExport
9			*
10			* This program is free software; you can redistribute it and/or modify
11			* it under the terms of the GNU General Public License as published by
12			* the Free Software Foundation; either version 2 of the License, or
13			* (at your option) any later version.
14			*
15			* This program is distributed in the hope that it will be useful,
16			* but WITHOUT ANY WARRANTY; without even the implied warranty of
17			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18			* GNU General Public License for more details.
19			*
20			* You should have received a copy of the GNU General Public License along
21			* with this program; if not, write to the Free Software Foundation, Inc.,
22			* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
23			* http://www.gnu.org/copyleft/gpl.html
24			*
25			* @author Gabriel Wicke <[email protected]>
26			* @file
27			*/
28
29			/**
30			* A simple method to retrieve the plain source of an article,
31			* using "action=raw" in the GET request string.
32			*
33			* @ingroup Actions
34			*/
35			class RawAction extends FormlessAction {
36			public function getName() {
37			return 'raw';
38			}
39
40			public function requiresWrite() {
41			return false;
42			}
43
44			public function requiresUnblock() {
45			return false;
46			}
47
48			function onView() {
49			$this->getOutput()->disable();
50			$request = $this->getRequest();
51			$response = $request->response();
52			$config = $this->context->getConfig();
53
54			if ( !$request->checkUrlExtension() ) {
55			return;
56			}
57
58			if ( $this->getOutput()->checkLastModified( $this->page->getTouched() ) ) {
			0 ignored issues – show Bug introduced 2016-02-23 18:13 UTC by Report Bug Copy Issue Report Show Similar Issues like this The method `getTouched` does only exist in `Article and CategoryPage... ImagePage and WikiPage`, but not in `Page`. It seems like the method you are trying to call exists only in some of the possible types. Let’s take a look at an example: class A { public function foo() { } } class B extends A { public function bar() { } } /** * @param A\|B $x / function someFunction($x) { $x->foo(); // This call is fine as the method exists in A and B. $x->bar(); // This method only exists in B and might cause an error. } Available Fixes Add an additional type-check: /* * @param A\|B $x / function someFunction($x) { $x->foo(); if ($x instanceof B) { $x->bar(); } } Only allow a single type to be passed if the variable comes from a parameter: function someFunction(B $x) { /* ... */ } Loading history...
59			return; // Client cache fresh and headers sent, nothing more to do.
60			}
61
62			$gen = $request->getVal( 'gen' );
63			if ( $gen == 'css' \|\| $gen == 'js' ) {
64			$this->gen = true;
			0 ignored issues – show Bug introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report Show Similar Issues like this The property `gen` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
65			}
66
67			$contentType = $this->getContentType();
68
69			$maxage = $request->getInt( 'maxage', $config->get( 'SquidMaxage' ) );
70			$smaxage = $request->getIntOrNull( 'smaxage' );
71			if ( $smaxage === null ) {
72			if ( $contentType == 'text/css' \|\| $contentType == 'text/javascript' ) {
73			// CSS/JS raw content has its own CDN max age configuration.
74			// Note: Title::getCdnUrls() includes action=raw for css/js pages,
75			// so if using the canonical url, this will get HTCP purges.
76			$smaxage = intval( $config->get( 'ForcedRawSMaxage' ) );
77			} else {
78			// No CDN cache for anything else
79			$smaxage = 0;
80			}
81			}
82
83			// Set standard Vary headers so cache varies on cookies and such (T125283)
84			$response->header( $this->getOutput()->getVaryHeader() );
85			if ( $config->get( 'UseKeyHeader' ) ) {
86			$response->header( $this->getOutput()->getKeyHeader() );
87			}
88
89			$response->header( 'Content-type: ' . $contentType . '; charset=UTF-8' );
90			// Output may contain user-specific data;
91			// vary generated content for open sessions on private wikis
92			$privateCache = !User::isEveryoneAllowed( 'read' ) &&
93			( $smaxage == 0 \|\| MediaWiki\Session\SessionManager::getGlobalSession()->isPersistent() );
94			// Don't accidentally cache cookies if user is logged in (T55032)
95			$privateCache = $privateCache \|\| $this->getUser()->isLoggedIn();
96			$mode = $privateCache ? 'private' : 'public';
97			$response->header(
98			'Cache-Control: ' . $mode . ', s-maxage=' . $smaxage . ', max-age=' . $maxage
99			);
100
101			$text = $this->getRawText();
102
103			// Don't return a 404 response for CSS or JavaScript;
104			// 404s aren't generally cached and it would create
105			// extra hits when user CSS/JS are on and the user doesn't
106			// have the pages.
107			if ( $text === false && $contentType == 'text/x-wiki' ) {
108			$response->statusHeader( 404 );
109			}
110
111			if ( !Hooks::run( 'RawPageViewBeforeOutput', [ &$this, &$text ] ) ) {
112			wfDebug( __METHOD__ . ": RawPageViewBeforeOutput hook broke raw page output.\n" );
113			}
114
115			echo $text;
116			}
117
118			/**
119			* Get the text that should be returned, or false if the page or revision
120			* was not found.
121			*
122			* @return string\|bool
123			*/
124			public function getRawText() {
125			global $wgParser;
126
127			$text = false;
128			$title = $this->getTitle();
129			$request = $this->getRequest();
130
131			// If it's a MediaWiki message we can just hit the message cache
132			if ( $request->getBool( 'usemsgcache' ) && $title->getNamespace() == NS_MEDIAWIKI ) {
133			// The first "true" is to use the database, the second is to use
134			// the content langue and the last one is to specify the message
135			// key already contains the language in it ("/de", etc.).
136			$text = MessageCache::singleton()->get( $title->getDBkey(), true, true, true );
137			// If the message doesn't exist, return a blank
138			if ( $text === false ) {
139			$text = '';
140			}
141			} else {
142			// Get it from the DB
143			$rev = Revision::newFromTitle( $title, $this->getOldId() );
144			if ( $rev ) {
145			$lastmod = wfTimestamp( TS_RFC2822, $rev->getTimestamp() );
146			$request->response()->header( "Last-modified: $lastmod" );
147
148			// Public-only due to cache headers
149			$content = $rev->getContent();
150
151			if ( $content === null ) {
152			// revision not found (or suppressed)
153			$text = false;
154			} elseif ( !$content instanceof TextContent ) {
155			// non-text content
156			wfHttpError( 415, "Unsupported Media Type", "The requested page uses the content model `"
157			. $content->getModel() . "` which is not supported via this interface." );
158			die();
			0 ignored issues – show Coding Style Compatibility introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report Show Similar Issues like this The method `getRawText()` contains an exit expression. An exit expression should only be used in rare cases. For example, if you write a short command line script. In most cases however, using an `exit` expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage. Loading history...
159			} else {
160			// want a section?
161			$section = $request->getIntOrNull( 'section' );
162			if ( $section !== null ) {
163			$content = $content->getSection( $section );
			0 ignored issues – show Bug introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report Show Similar Issues like this Are you sure the assignment to `$content` is correct as `$content->getSection($section)` (which targets `AbstractContent::getSection()`) seems to always return null. This check looks for function or method calls that always return null and whose return value is assigned to a variable. class A { function getObject() { return null; } } $a = new A(); $object = $a->getObject(); The method `getObject()` can return nothing but null, so it makes no sense to assign that value to a variable. The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes. Loading history...
164			}
165
166			if ( $content === null \|\| $content === false ) {
167			// section not found (or section not supported, e.g. for JS and CSS)
168			$text = false;
169			} else {
170			$text = $content->getNativeData();
171			}
172			}
173			}
174			}
175
176			if ( $text !== false && $text !== '' && $request->getVal( 'templates' ) === 'expand' ) {
177			$text = $wgParser->preprocess(
178			$text,
179			$title,
180			ParserOptions::newFromContext( $this->getContext() )
181			);
182			}
183
184			return $text;
185			}
186
187			/**
188			* Get the ID of the revision that should used to get the text.
189			*
190			* @return int
191			*/
192			public function getOldId() {
193			$oldid = $this->getRequest()->getInt( 'oldid' );
194			switch ( $this->getRequest()->getText( 'direction' ) ) {
195			case 'next':
196			# output next revision, or nothing if there isn't one
197			$nextid = 0;
198			if ( $oldid ) {
199			$nextid = $this->getTitle()->getNextRevisionID( $oldid );
200			}
201			$oldid = $nextid ?: -1;
202			break;
203			case 'prev':
204			# output previous revision, or nothing if there isn't one
205			if ( !$oldid ) {
206			# get the current revision so we can get the penultimate one
207			$oldid = $this->page->getLatest();
			0 ignored issues – show Bug introduced 2016-02-23 18:13 UTC by Report Bug Copy Issue Report Show Similar Issues like this The method `getLatest` does only exist in `Article and CategoryPage... ImagePage and WikiPage`, but not in `Page`. It seems like the method you are trying to call exists only in some of the possible types. Let’s take a look at an example: class A { public function foo() { } } class B extends A { public function bar() { } } /** * @param A\|B $x / function someFunction($x) { $x->foo(); // This call is fine as the method exists in A and B. $x->bar(); // This method only exists in B and might cause an error. } Available Fixes Add an additional type-check: /* * @param A\|B $x / function someFunction($x) { $x->foo(); if ($x instanceof B) { $x->bar(); } } Only allow a single type to be passed if the variable comes from a parameter: function someFunction(B $x) { /* ... */ } Loading history...
208			}
209			$previd = $this->getTitle()->getPreviousRevisionID( $oldid );
210			$oldid = $previd ?: -1;
211			break;
212			case 'cur':
213			$oldid = 0;
214			break;
215			}
216
217			return $oldid;
218			}
219
220			/**
221			* Get the content type to use for the response
222			*
223			* @return string
224			*/
225			public function getContentType() {
226			$ctype = $this->getRequest()->getVal( 'ctype' );
227
228			if ( $ctype == '' ) {
229			$gen = $this->getRequest()->getVal( 'gen' );
230			if ( $gen == 'js' ) {
231			$ctype = 'text/javascript';
232			} elseif ( $gen == 'css' ) {
233			$ctype = 'text/css';
234			}
235			}
236
237			$allowedCTypes = [ 'text/x-wiki', 'text/javascript', 'text/css', 'application/x-zope-edit' ];
238			if ( $ctype == '' \|\| !in_array( $ctype, $allowedCTypes ) ) {
239			$ctype = 'text/x-wiki';
240			}
241
242			return $ctype;
243			}
244			}
245

wikimedia / mediawiki

Issues (4122)

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includes/actions/RawAction.php (5 issues)

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