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/api/ApiQueryAllLinks.php (2 issues)

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1
<?php
2
/**
3
 *
4
 *
5
 * Created on July 7, 2007
6
 *
7
 * Copyright © 2006 Yuri Astrakhan "<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,
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 * 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.,
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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
23
 *
24
 * @file
25
 */
26
27
/**
28
 * Query module to enumerate links from all pages together.
29
 *
30
 * @ingroup API
31
 */
32
class ApiQueryAllLinks extends ApiQueryGeneratorBase {
33
34
	private $table, $tablePrefix, $indexTag;
0 ignored issues
show
It is generally advisable to only define one property per statement.

Only declaring a single property per statement allows you to later on add doc comments more easily.

It is also recommended by PSR2, so it is a common style that many people expect.

Loading history...
35
	private $fieldTitle = 'title';
36
	private $dfltNamespace = NS_MAIN;
37
	private $hasNamespace = true;
38
	private $useIndex = null;
39
	private $props = [];
40
41
	public function __construct( ApiQuery $query, $moduleName ) {
42
		switch ( $moduleName ) {
43
			case 'alllinks':
44
				$prefix = 'al';
45
				$this->table = 'pagelinks';
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				$this->tablePrefix = 'pl_';
47
				$this->useIndex = 'pl_namespace';
48
				$this->indexTag = 'l';
49
				break;
50 View Code Duplication
			case 'alltransclusions':
51
				$prefix = 'at';
52
				$this->table = 'templatelinks';
53
				$this->tablePrefix = 'tl_';
54
				$this->dfltNamespace = NS_TEMPLATE;
55
				$this->useIndex = 'tl_namespace';
56
				$this->indexTag = 't';
57
				break;
58 View Code Duplication
			case 'allfileusages':
59
				$prefix = 'af';
60
				$this->table = 'imagelinks';
61
				$this->tablePrefix = 'il_';
62
				$this->fieldTitle = 'to';
63
				$this->dfltNamespace = NS_FILE;
64
				$this->hasNamespace = false;
65
				$this->indexTag = 'f';
66
				break;
67
			case 'allredirects':
68
				$prefix = 'ar';
69
				$this->table = 'redirect';
70
				$this->tablePrefix = 'rd_';
71
				$this->indexTag = 'r';
72
				$this->props = [
73
					'fragment' => 'rd_fragment',
74
					'interwiki' => 'rd_interwiki',
75
				];
76
				break;
77
			default:
78
				ApiBase::dieDebug( __METHOD__, 'Unknown module name' );
79
		}
80
81
		parent::__construct( $query, $moduleName, $prefix );
0 ignored issues
show
The variable $prefix does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

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

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

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
82
	}
83
84
	public function execute() {
85
		$this->run();
86
	}
87
88
	public function getCacheMode( $params ) {
89
		return 'public';
90
	}
91
92
	public function executeGenerator( $resultPageSet ) {
93
		$this->run( $resultPageSet );
94
	}
95
96
	/**
97
	 * @param ApiPageSet $resultPageSet
98
	 * @return void
99
	 */
100
	private function run( $resultPageSet = null ) {
101
		$db = $this->getDB();
102
		$params = $this->extractRequestParams();
103
104
		$pfx = $this->tablePrefix;
105
		$fieldTitle = $this->fieldTitle;
106
		$prop = array_flip( $params['prop'] );
107
		$fld_ids = isset( $prop['ids'] );
108
		$fld_title = isset( $prop['title'] );
109
		if ( $this->hasNamespace ) {
110
			$namespace = $params['namespace'];
111
		} else {
112
			$namespace = $this->dfltNamespace;
113
		}
114
115
		if ( $params['unique'] ) {
116
			$matches = array_intersect_key( $prop, $this->props + [ 'ids' => 1 ] );
117
			if ( $matches ) {
118
				$p = $this->getModulePrefix();
119
				$this->dieUsage(
120
					"Cannot use {$p}prop=" . implode( '|', array_keys( $matches ) ) . " with {$p}unique",
121
					'params'
122
				);
123
			}
124
			$this->addOption( 'DISTINCT' );
125
		}
126
127
		$this->addTables( $this->table );
128
		if ( $this->hasNamespace ) {
129
			$this->addWhereFld( $pfx . 'namespace', $namespace );
130
		}
131
132
		$continue = !is_null( $params['continue'] );
133
		if ( $continue ) {
134
			$continueArr = explode( '|', $params['continue'] );
135
			$op = $params['dir'] == 'descending' ? '<' : '>';
136
			if ( $params['unique'] ) {
137
				$this->dieContinueUsageIf( count( $continueArr ) != 1 );
138
				$continueTitle = $db->addQuotes( $continueArr[0] );
139
				$this->addWhere( "{$pfx}{$fieldTitle} $op= $continueTitle" );
140
			} else {
141
				$this->dieContinueUsageIf( count( $continueArr ) != 2 );
142
				$continueTitle = $db->addQuotes( $continueArr[0] );
143
				$continueFrom = intval( $continueArr[1] );
144
				$this->addWhere(
145
					"{$pfx}{$fieldTitle} $op $continueTitle OR " .
146
					"({$pfx}{$fieldTitle} = $continueTitle AND " .
147
					"{$pfx}from $op= $continueFrom)"
148
				);
149
			}
150
		}
151
152
		// 'continue' always overrides 'from'
153
		$from = ( $continue || $params['from'] === null ? null :
154
			$this->titlePartToKey( $params['from'], $namespace ) );
155
		$to = ( $params['to'] === null ? null :
156
			$this->titlePartToKey( $params['to'], $namespace ) );
157
		$this->addWhereRange( $pfx . $fieldTitle, 'newer', $from, $to );
158
159
		if ( isset( $params['prefix'] ) ) {
160
			$this->addWhere( $pfx . $fieldTitle . $db->buildLike( $this->titlePartToKey(
161
				$params['prefix'], $namespace ), $db->anyString() ) );
162
		}
163
164
		$this->addFields( [ 'pl_title' => $pfx . $fieldTitle ] );
165
		$this->addFieldsIf( [ 'pl_from' => $pfx . 'from' ], !$params['unique'] );
166
		foreach ( $this->props as $name => $field ) {
167
			$this->addFieldsIf( $field, isset( $prop[$name] ) );
168
		}
169
170
		if ( $this->useIndex ) {
171
			$this->addOption( 'USE INDEX', $this->useIndex );
172
		}
173
		$limit = $params['limit'];
174
		$this->addOption( 'LIMIT', $limit + 1 );
175
176
		$sort = ( $params['dir'] == 'descending' ? ' DESC' : '' );
177
		$orderBy = [];
178
		$orderBy[] = $pfx . $fieldTitle . $sort;
179
		if ( !$params['unique'] ) {
180
			$orderBy[] = $pfx . 'from' . $sort;
181
		}
182
		$this->addOption( 'ORDER BY', $orderBy );
183
184
		$res = $this->select( __METHOD__ );
185
186
		$pageids = [];
187
		$titles = [];
188
		$count = 0;
189
		$result = $this->getResult();
190
		foreach ( $res as $row ) {
191 View Code Duplication
			if ( ++$count > $limit ) {
192
				// We've reached the one extra which shows that there are
193
				// additional pages to be had. Stop here...
194
				if ( $params['unique'] ) {
195
					$this->setContinueEnumParameter( 'continue', $row->pl_title );
196
				} else {
197
					$this->setContinueEnumParameter( 'continue', $row->pl_title . '|' . $row->pl_from );
198
				}
199
				break;
200
			}
201
202
			if ( is_null( $resultPageSet ) ) {
203
				$vals = [
204
					ApiResult::META_TYPE => 'assoc',
205
				];
206
				if ( $fld_ids ) {
207
					$vals['fromid'] = intval( $row->pl_from );
208
				}
209
				if ( $fld_title ) {
210
					$title = Title::makeTitle( $namespace, $row->pl_title );
211
					ApiQueryBase::addTitleInfo( $vals, $title );
212
				}
213
				foreach ( $this->props as $name => $field ) {
214
					if ( isset( $prop[$name] ) && $row->$field !== null && $row->$field !== '' ) {
215
						$vals[$name] = $row->$field;
216
					}
217
				}
218
				$fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $vals );
219 View Code Duplication
				if ( !$fit ) {
220
					if ( $params['unique'] ) {
221
						$this->setContinueEnumParameter( 'continue', $row->pl_title );
222
					} else {
223
						$this->setContinueEnumParameter( 'continue', $row->pl_title . '|' . $row->pl_from );
224
					}
225
					break;
226
				}
227
			} elseif ( $params['unique'] ) {
228
				$titles[] = Title::makeTitle( $namespace, $row->pl_title );
229
			} else {
230
				$pageids[] = $row->pl_from;
231
			}
232
		}
233
234 View Code Duplication
		if ( is_null( $resultPageSet ) ) {
235
			$result->addIndexedTagName( [ 'query', $this->getModuleName() ], $this->indexTag );
236
		} elseif ( $params['unique'] ) {
237
			$resultPageSet->populateFromTitles( $titles );
238
		} else {
239
			$resultPageSet->populateFromPageIDs( $pageids );
240
		}
241
	}
242
243
	public function getAllowedParams() {
244
		$allowedParams = [
245
			'continue' => [
246
				ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
247
			],
248
			'from' => null,
249
			'to' => null,
250
			'prefix' => null,
251
			'unique' => false,
252
			'prop' => [
253
				ApiBase::PARAM_ISMULTI => true,
254
				ApiBase::PARAM_DFLT => 'title',
255
				ApiBase::PARAM_TYPE => array_merge(
256
					[ 'ids', 'title' ], array_keys( $this->props )
257
				),
258
				ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
259
			],
260
			'namespace' => [
261
				ApiBase::PARAM_DFLT => $this->dfltNamespace,
262
				ApiBase::PARAM_TYPE => 'namespace'
263
			],
264
			'limit' => [
265
				ApiBase::PARAM_DFLT => 10,
266
				ApiBase::PARAM_TYPE => 'limit',
267
				ApiBase::PARAM_MIN => 1,
268
				ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
269
				ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
270
			],
271
			'dir' => [
272
				ApiBase::PARAM_DFLT => 'ascending',
273
				ApiBase::PARAM_TYPE => [
274
					'ascending',
275
					'descending'
276
				]
277
			],
278
		];
279
		if ( !$this->hasNamespace ) {
280
			unset( $allowedParams['namespace'] );
281
		}
282
283
		return $allowedParams;
284
	}
285
286
	protected function getExamplesMessages() {
287
		$p = $this->getModulePrefix();
288
		$name = $this->getModuleName();
289
		$path = $this->getModulePath();
290
291
		return [
292
			"action=query&list={$name}&{$p}from=B&{$p}prop=ids|title"
293
				=> "apihelp-$path-example-B",
294
			"action=query&list={$name}&{$p}unique=&{$p}from=B"
295
				=> "apihelp-$path-example-unique",
296
			"action=query&generator={$name}&g{$p}unique=&g{$p}from=B"
297
				=> "apihelp-$path-example-unique-generator",
298
			"action=query&generator={$name}&g{$p}from=B"
299
				=> "apihelp-$path-example-generator",
300
		];
301
	}
302
303
	public function getHelpUrls() {
304
		$name = ucfirst( $this->getModuleName() );
305
306
		return "https://www.mediawiki.org/wiki/API:{$name}";
307
	}
308
}
309