CleanupSpam - Code Metrics - wikimedia/mediawiki - Measure and Improve Code Quality continuously with Scrutinizer

CleanupSpam A
last analyzed 2016-11-13 17:42 UTC

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	127
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	8

Importance

Changes

Metric	Value
dl	0
loc	127
rs	10
c	0
b	0
f	0
wmc	20
lcom	1
cbo	8

3 Methods

Rating	Name	Size	Complexity
A	__construct()	10	1
C	execute()	55	10
B	cleanupArticle()	57	9

<?php

/**
 * Cleanup all spam from a given hostname.
 *
 * 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 Maintenance
 */

require_once __DIR__ . '/Maintenance.php';

/**
 * Maintenance script to cleanup all spam from a given hostname.
 *
 * @ingroup Maintenance
 */
class CleanupSpam extends Maintenance {

	public function __construct() {
		parent::__construct();
		$this->addDescription( 'Cleanup all spam from a given hostname' );
		$this->addOption( 'all', 'Check all wikis in $wgLocalDatabases' );
		$this->addOption( 'delete', 'Delete pages containing only spam instead of blanking them' );
		$this->addArg(
			'hostname',
			'Hostname that was spamming, single * wildcard in the beginning allowed'
		);
	}

	public function execute() {
		global $IP, $wgLocalDatabases, $wgUser;

		$username = wfMessage( 'spambot_username' )->text();
		$wgUser = User::newSystemUser( $username );
		if ( !$wgUser ) {
			$this->error( "Invalid username specified in 'spambot_username' message: $username", true );
		}
		// Create the user if necessary
		if ( !$wgUser->getId() ) {
			$wgUser->addToDatabase();
		}
		$spec = $this->getArg();
		$like = LinkFilter::makeLikeArray( $spec );
		if ( !$like ) {
			$this->error( "Not a valid hostname specification: $spec", true );
		}

		if ( $this->hasOption( 'all' ) ) {
			// Clean up spam on all wikis
			$this->output( "Finding spam on " . count( $wgLocalDatabases ) . " wikis\n" );
			$found = false;
			foreach ( $wgLocalDatabases as $wikiID ) {
				$dbr = $this->getDB( DB_REPLICA, [], $wikiID );

				$count = $dbr->selectField( 'externallinks', 'COUNT(*)',
					[ 'el_index' . $dbr->buildLike( $like ) ], __METHOD__ );
				if ( $count ) {
					$found = true;
					$cmd = wfShellWikiCmd( "$IP/maintenance/cleanupSpam.php",
						[ '--wiki', $wikiID, $spec ] );
					passthru( "$cmd | sed 's/^/$wikiID:  /'" );
				}
			}
			if ( $found ) {
				$this->output( "All done\n" );
			} else {
				$this->output( "None found\n" );
			}
		} else {
			// Clean up spam on this wiki

			$dbr = $this->getDB( DB_REPLICA );
			$res = $dbr->select( 'externallinks', [ 'DISTINCT el_from' ],
				[ 'el_index' . $dbr->buildLike( $like ) ], __METHOD__ );
			$count = $dbr->numRows( $res );
			$this->output( "Found $count articles containing $spec\n" );
			foreach ( $res as $row ) {
				$this->cleanupArticle( $row->el_from, $spec );
			}
			if ( $count ) {
				$this->output( "Done\n" );
			}
		}
	}

	private function cleanupArticle( $id, $domain ) {
		$title = Title::newFromID( $id );
		if ( !$title ) {
			$this->error( "Internal error: no page for ID $id" );

			return;
		}

		$this->output( $title->getPrefixedDBkey() . " ..." );
		$rev = Revision::newFromTitle( $title );
		$currentRevId = $rev->getId();

		while ( $rev && ( $rev->isDeleted( Revision::DELETED_TEXT )
			|| LinkFilter::matchEntry( $rev->getContent( Revision::RAW ), $domain ) )
/** @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);
    }
}
		) {
			$rev = $rev->getPrevious();
		}

		if ( $rev && $rev->getId() == $currentRevId ) {
			// The regex didn't match the current article text
			// This happens e.g. when a link comes from a template rather than the page itself
			$this->output( "False match\n" );
		} else {
			$dbw = $this->getDB( DB_MASTER );
			$this->beginTransaction( $dbw, __METHOD__ );
/** @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);
    }
}
			$page = WikiPage::factory( $title );
			if ( $rev ) {
				// Revert to this revision
				$content = $rev->getContent( Revision::RAW );

				$this->output( "reverting\n" );
				$page->doEditContent(
					$content,
/** @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);
    }
}
					wfMessage( 'spam_reverting', $domain )->inContentLanguage()->text(),
					EDIT_UPDATE,
					$rev->getId()
				);
			} elseif ( $this->hasOption( 'delete' ) ) {
				// Didn't find a non-spammy revision, blank the page
				$this->output( "deleting\n" );
				$page->doDeleteArticle(
					wfMessage( 'spam_deleting', $domain )->inContentLanguage()->text()
				);
			} else {
				// Didn't find a non-spammy revision, blank the page
				$handler = ContentHandler::getForTitle( $title );
				$content = $handler->makeEmptyContent();

				$this->output( "blanking\n" );
				$page->doEditContent(
					$content,
					wfMessage( 'spam_blanking', $domain )->inContentLanguage()->text()
				);
			}
			$this->commitTransaction( $dbw, __METHOD__ );
/** @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);
    }
}
		}
	}
}

$maintClass = "CleanupSpam";
require_once RUN_MAINTENANCE_IF_MAIN;


1			<?php
			0 ignored issues – show Coding Style Compatibility introduced 2016-02-23 18:14 UTC by Report Bug Copy Issue Report For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 31 and the first side effect is on line 24. The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file. The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place. To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1. Loading history...
2			/**
3			* Cleanup all spam from a given hostname.
4			*
5			* This program is free software; you can redistribute it and/or modify
6			* it under the terms of the GNU General Public License as published by
7			* the Free Software Foundation; either version 2 of the License, or
8			* (at your option) any later version.
9			*
10			* This program is distributed in the hope that it will be useful,
11			* but WITHOUT ANY WARRANTY; without even the implied warranty of
12			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13			* GNU General Public License for more details.
14			*
15			* You should have received a copy of the GNU General Public License along
16			* with this program; if not, write to the Free Software Foundation, Inc.,
17			* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18			* http://www.gnu.org/copyleft/gpl.html
19			*
20			* @file
21			* @ingroup Maintenance
22			*/
23
24			require_once __DIR__ . '/Maintenance.php';
25
26			/**
27			* Maintenance script to cleanup all spam from a given hostname.
28			*
29			* @ingroup Maintenance
30			*/
31			class CleanupSpam extends Maintenance {
32
33			public function __construct() {
34			parent::__construct();
35			$this->addDescription( 'Cleanup all spam from a given hostname' );
36			$this->addOption( 'all', 'Check all wikis in $wgLocalDatabases' );
37			$this->addOption( 'delete', 'Delete pages containing only spam instead of blanking them' );
38			$this->addArg(
39			'hostname',
40			'Hostname that was spamming, single * wildcard in the beginning allowed'
41			);
42			}
43
44			public function execute() {
45			global $IP, $wgLocalDatabases, $wgUser;
46
47			$username = wfMessage( 'spambot_username' )->text();
48			$wgUser = User::newSystemUser( $username );
49			if ( !$wgUser ) {
50			$this->error( "Invalid username specified in 'spambot_username' message: $username", true );
51			}
52			// Create the user if necessary
53			if ( !$wgUser->getId() ) {
54			$wgUser->addToDatabase();
55			}
56			$spec = $this->getArg();
57			$like = LinkFilter::makeLikeArray( $spec );
58			if ( !$like ) {
59			$this->error( "Not a valid hostname specification: $spec", true );
60			}
61
62			if ( $this->hasOption( 'all' ) ) {
63			// Clean up spam on all wikis
64			$this->output( "Finding spam on " . count( $wgLocalDatabases ) . " wikis\n" );
65			$found = false;
66			foreach ( $wgLocalDatabases as $wikiID ) {
67			$dbr = $this->getDB( DB_REPLICA, [], $wikiID );
68
69			$count = $dbr->selectField( 'externallinks', 'COUNT(*)',
70			[ 'el_index' . $dbr->buildLike( $like ) ], __METHOD__ );
71			if ( $count ) {
72			$found = true;
73			$cmd = wfShellWikiCmd( "$IP/maintenance/cleanupSpam.php",
74			[ '--wiki', $wikiID, $spec ] );
75			passthru( "$cmd \| sed 's/^/$wikiID: /'" );
76			}
77			}
78			if ( $found ) {
79			$this->output( "All done\n" );
80			} else {
81			$this->output( "None found\n" );
82			}
83			} else {
84			// Clean up spam on this wiki
85
86			$dbr = $this->getDB( DB_REPLICA );
87			$res = $dbr->select( 'externallinks', [ 'DISTINCT el_from' ],
88			[ 'el_index' . $dbr->buildLike( $like ) ], __METHOD__ );
89			$count = $dbr->numRows( $res );
90			$this->output( "Found $count articles containing $spec\n" );
91			foreach ( $res as $row ) {
92			$this->cleanupArticle( $row->el_from, $spec );
93			}
94			if ( $count ) {
95			$this->output( "Done\n" );
96			}
97			}
98			}
99
100			private function cleanupArticle( $id, $domain ) {
101			$title = Title::newFromID( $id );
102			if ( !$title ) {
103			$this->error( "Internal error: no page for ID $id" );
104
105			return;
106			}
107
108			$this->output( $title->getPrefixedDBkey() . " ..." );
109			$rev = Revision::newFromTitle( $title );
110			$currentRevId = $rev->getId();
111
112			while ( $rev && ( $rev->isDeleted( Revision::DELETED_TEXT )
113			\|\| LinkFilter::matchEntry( $rev->getContent( Revision::RAW ), $domain ) )
			0 ignored issues – show Bug introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report It seems like `$rev->getContent(\Revision::RAW)` can be `null`; however, `matchEntry()` 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...
114			) {
115			$rev = $rev->getPrevious();
116			}
117
118			if ( $rev && $rev->getId() == $currentRevId ) {
119			// The regex didn't match the current article text
120			// This happens e.g. when a link comes from a template rather than the page itself
121			$this->output( "False match\n" );
122			} else {
123			$dbw = $this->getDB( DB_MASTER );
124			$this->beginTransaction( $dbw, __METHOD__ );
			0 ignored issues – show Bug introduced 2016-09-24 18:22 UTC by Report Bug Copy Issue Report It seems like `$dbw` defined by `$this->getDB(DB_MASTER)` on line `123` can be `null`; however, `Maintenance::beginTransaction()` 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...
125			$page = WikiPage::factory( $title );
126			if ( $rev ) {
127			// Revert to this revision
128			$content = $rev->getContent( Revision::RAW );
129
130			$this->output( "reverting\n" );
131			$page->doEditContent(
132			$content,
			0 ignored issues – show Bug introduced 2016-02-23 18:13 UTC by Report Bug Copy Issue Report It seems like `$content` defined by `$rev->getContent(\Revision::RAW)` on line `128` can be `null`; however, `WikiPage::doEditContent()` 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...
133			wfMessage( 'spam_reverting', $domain )->inContentLanguage()->text(),
134			EDIT_UPDATE,
135			$rev->getId()
136			);
137			} elseif ( $this->hasOption( 'delete' ) ) {
138			// Didn't find a non-spammy revision, blank the page
139			$this->output( "deleting\n" );
140			$page->doDeleteArticle(
141			wfMessage( 'spam_deleting', $domain )->inContentLanguage()->text()
142			);
143			} else {
144			// Didn't find a non-spammy revision, blank the page
145			$handler = ContentHandler::getForTitle( $title );
146			$content = $handler->makeEmptyContent();
147
148			$this->output( "blanking\n" );
149			$page->doEditContent(
150			$content,
151			wfMessage( 'spam_blanking', $domain )->inContentLanguage()->text()
152			);
153			}
154			$this->commitTransaction( $dbw, __METHOD__ );
			0 ignored issues – show Bug introduced 2016-09-24 18:22 UTC by Report Bug Copy Issue Report It seems like `$dbw` defined by `$this->getDB(DB_MASTER)` on line `123` can be `null`; however, `Maintenance::commitTransaction()` 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...
155			}
156			}
157			}
158
159			$maintClass = "CleanupSpam";
160			require_once RUN_MAINTENANCE_IF_MAIN;
161

wikimedia / mediawiki

CleanupSpam A last analyzed 2016-11-13 17:42 UTC

Complexity

Size/Duplication

Coupling/Cohesion

Importance

3 Methods

Duplication Side-by-Side

Filter issues like

CleanupSpam A
last analyzed 2016-11-13 17:42 UTC