Issues (4122)

Security Analysis    not enabled

This project does not seem to handle request data directly as such no vulnerable execution paths were found.

  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/diff/DairikiDiff.php (4 issues)

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1
<?php
2
/**
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 * A PHP diff engine for phpwiki. (Taken from phpwiki-1.3.3)
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 *
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 * Copyright © 2000, 2001 Geoffrey T. Dairiki <[email protected]>
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 * You may copy this code freely under the conditions of the GPL.
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License along
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 * with this program; if not, write to the Free Software Foundation, Inc.,
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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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 * http://www.gnu.org/copyleft/gpl.html
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 *
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 * @file
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 * @ingroup DifferenceEngine
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 * @defgroup DifferenceEngine DifferenceEngine
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 */
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28
/**
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 * The base class for all other DiffOp classes.
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 *
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 * The classes that extend DiffOp are: DiffOpCopy, DiffOpDelete, DiffOpAdd and
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 * DiffOpChange. FakeDiffOp also extends DiffOp, but it is not located in this file.
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 *
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 * @private
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 * @ingroup DifferenceEngine
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 */
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abstract class DiffOp {
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	/**
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	 * @var string
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	 */
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	public $type;
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44
	/**
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	 * @var string[]
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	 */
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	public $orig;
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49
	/**
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	 * @var string[]
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	 */
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	public $closing;
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	/**
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	 * @return string
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	 */
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	public function getType() {
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		return $this->type;
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	}
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	/**
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	 * @return string[]
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	 */
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	public function getOrig() {
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		return $this->orig;
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	}
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	/**
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	 * @param int $i
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	 * @return string|null
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	 */
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	public function getClosing( $i = null ) {
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		if ( $i === null ) {
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			return $this->closing;
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		}
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		if ( array_key_exists( $i, $this->closing ) ) {
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			return $this->closing[$i];
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		}
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		return null;
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	}
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	abstract public function reverse();
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	/**
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	 * @return int
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	 */
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	public function norig() {
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		return $this->orig ? count( $this->orig ) : 0;
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	}
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	/**
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	 * @return int
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	 */
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	public function nclosing() {
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		return $this->closing ? count( $this->closing ) : 0;
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	}
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}
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/**
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 * Extends DiffOp. Used to mark strings that have been
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 * copied from one string array to the other.
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 *
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 * @private
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 * @ingroup DifferenceEngine
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 */
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class DiffOpCopy extends DiffOp {
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	public $type = 'copy';
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	public function __construct( $orig, $closing = false ) {
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		if ( !is_array( $closing ) ) {
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			$closing = $orig;
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		}
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		$this->orig = $orig;
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		$this->closing = $closing;
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	}
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117
	/**
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	 * @return DiffOpCopy
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	 */
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	public function reverse() {
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		return new DiffOpCopy( $this->closing, $this->orig );
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	}
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}
124
125
/**
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 * Extends DiffOp. Used to mark strings that have been
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 * deleted from the first string array.
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 *
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 * @private
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 * @ingroup DifferenceEngine
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 */
132 View Code Duplication
class DiffOpDelete extends DiffOp {
0 ignored issues
show
This class seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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133
	public $type = 'delete';
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	public function __construct( $lines ) {
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		$this->orig = $lines;
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		$this->closing = false;
0 ignored issues
show
Documentation Bug introduced by
It seems like false of type false is incompatible with the declared type array<integer,string> of property $closing.

Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.

Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..

Loading history...
138
	}
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	/**
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	 * @return DiffOpAdd
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	 */
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	public function reverse() {
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		return new DiffOpAdd( $this->orig );
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	}
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}
147
148
/**
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 * Extends DiffOp. Used to mark strings that have been
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 * added from the first string array.
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 *
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 * @private
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 * @ingroup DifferenceEngine
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 */
155 View Code Duplication
class DiffOpAdd extends DiffOp {
0 ignored issues
show
This class seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
156
	public $type = 'add';
157
158
	public function __construct( $lines ) {
159
		$this->closing = $lines;
160
		$this->orig = false;
0 ignored issues
show
Documentation Bug introduced by
It seems like false of type false is incompatible with the declared type array<integer,string> of property $orig.

Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.

Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..

Loading history...
161
	}
162
163
	/**
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	 * @return DiffOpDelete
165
	 */
166
	public function reverse() {
167
		return new DiffOpDelete( $this->closing );
168
	}
169
}
170
171
/**
172
 * Extends DiffOp. Used to mark strings that have been
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 * changed from the first string array (both added and subtracted).
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 *
175
 * @private
176
 * @ingroup DifferenceEngine
177
 */
178
class DiffOpChange extends DiffOp {
179
	public $type = 'change';
180
181
	public function __construct( $orig, $closing ) {
182
		$this->orig = $orig;
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		$this->closing = $closing;
184
	}
185
186
	/**
187
	 * @return DiffOpChange
188
	 */
189
	public function reverse() {
190
		return new DiffOpChange( $this->closing, $this->orig );
191
	}
192
}
193
194
/**
195
 * Class representing a 'diff' between two sequences of strings.
196
 * @todo document
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 * @private
198
 * @ingroup DifferenceEngine
199
 */
200
class Diff {
201
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	/**
203
	 * @var DiffOp[]
204
	 */
205
	public $edits;
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207
	/**
208
	 * @var int If this diff complexity is exceeded, a ComplexityException is thrown
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	 *          0 means no limit.
210
	 */
211
	protected $bailoutComplexity = 0;
212
213
	/**
214
	 * Constructor.
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	 * Computes diff between sequences of strings.
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	 *
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	 * @param string[] $from_lines An array of strings.
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	 *   Typically these are lines from a file.
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	 * @param string[] $to_lines An array of strings.
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	 * @throws \MediaWiki\Diff\ComplexityException
221
	 */
222
	public function __construct( $from_lines, $to_lines ) {
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		$eng = new DiffEngine;
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		$eng->setBailoutComplexity( $this->bailoutComplexity );
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		$this->edits = $eng->diff( $from_lines, $to_lines );
226
	}
227
228
	/**
229
	 * @return DiffOp[]
230
	 */
231
	public function getEdits() {
232
		return $this->edits;
233
	}
234
235
	/**
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	 * Compute reversed Diff.
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	 *
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	 * SYNOPSIS:
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	 *
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	 *    $diff = new Diff($lines1, $lines2);
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	 *    $rev = $diff->reverse();
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	 *
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	 * @return Object A Diff object representing the inverse of the
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	 *   original diff.
245
	 */
246
	public function reverse() {
247
		$rev = $this;
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		$rev->edits = [];
249
		/** @var DiffOp $edit */
250
		foreach ( $this->edits as $edit ) {
251
			$rev->edits[] = $edit->reverse();
252
		}
253
254
		return $rev;
255
	}
256
257
	/**
258
	 * Check for empty diff.
259
	 *
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	 * @return bool True if two sequences were identical.
261
	 */
262
	public function isEmpty() {
263
		foreach ( $this->edits as $edit ) {
264
			if ( $edit->type != 'copy' ) {
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				return false;
266
			}
267
		}
268
269
		return true;
270
	}
271
272
	/**
273
	 * Compute the length of the Longest Common Subsequence (LCS).
274
	 *
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	 * This is mostly for diagnostic purposed.
276
	 *
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	 * @return int The length of the LCS.
278
	 */
279
	public function lcs() {
280
		$lcs = 0;
281
		foreach ( $this->edits as $edit ) {
282
			if ( $edit->type == 'copy' ) {
283
				$lcs += count( $edit->orig );
284
			}
285
		}
286
287
		return $lcs;
288
	}
289
290
	/**
291
	 * Get the original set of lines.
292
	 *
293
	 * This reconstructs the $from_lines parameter passed to the
294
	 * constructor.
295
	 *
296
	 * @return string[] The original sequence of strings.
297
	 */
298 View Code Duplication
	public function orig() {
299
		$lines = [];
300
301
		foreach ( $this->edits as $edit ) {
302
			if ( $edit->orig ) {
303
				array_splice( $lines, count( $lines ), 0, $edit->orig );
304
			}
305
		}
306
307
		return $lines;
308
	}
309
310
	/**
311
	 * Get the closing set of lines.
312
	 *
313
	 * This reconstructs the $to_lines parameter passed to the
314
	 * constructor.
315
	 *
316
	 * @return string[] The sequence of strings.
317
	 */
318 View Code Duplication
	public function closing() {
319
		$lines = [];
320
321
		foreach ( $this->edits as $edit ) {
322
			if ( $edit->closing ) {
323
				array_splice( $lines, count( $lines ), 0, $edit->closing );
324
			}
325
		}
326
327
		return $lines;
328
	}
329
}
330
331
/**
332
 * @deprecated Alias for WordAccumulator, to be soon removed
333
 */
334
class HWLDFWordAccumulator extends MediaWiki\Diff\WordAccumulator {
335
}
336