ApiWatch::execute() - Code Metrics - wikimedia/mediawiki - Measure and Improve Code Quality continuously with Scrutinizer

ApiWatch::execute() C
last analyzed 2016-11-13 17:42 UTC

↳ Parent: ApiWatch

Complexity

Conditions	10
Paths	20

Size

Total Lines	64
Code Lines	41

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	10
eloc	41
nc	20
nop	0
dl	0
loc	64
rs	6.309
c	0
b	0
f	0

How to fix Long Method Complexity

<?php
/**
 *
 *
 * Created on Jan 4, 2008
 *
 * Copyright © 2008 Yuri Astrakhan "<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
 */

/**
 * API module to allow users to watch a page
 *
 * @ingroup API
 */
class ApiWatch extends ApiBase {
	private $mPageSet = null;

	public function execute() {
		$user = $this->getUser();
		if ( !$user->isLoggedIn() ) {
			$this->dieUsage( 'You must be logged-in to have a watchlist', 'notloggedin' );
		}

		if ( !$user->isAllowed( 'editmywatchlist' ) ) {
			$this->dieUsage( 'You don\'t have permission to edit your watchlist', 'permissiondenied' );
		}

		$params = $this->extractRequestParams();

		$continuationManager = new ApiContinuationManager( $this, [], [] );
		$this->setContinuationManager( $continuationManager );

		$pageSet = $this->getPageSet();
		// by default we use pageset to extract the page to work on.
		// title is still supported for backward compatibility
		if ( !isset( $params['title'] ) ) {
			$pageSet->execute();
			$res = $pageSet->getInvalidTitlesAndRevisions( [
				'invalidTitles',
				'special',
				'missingIds',
				'missingRevIds',
				'interwikiTitles'
			] );

			foreach ( $pageSet->getMissingTitles() as $title ) {
				$r = $this->watchTitle( $title, $user, $params );
				$r['missing'] = 1;
				$res[] = $r;
			}

			foreach ( $pageSet->getGoodTitles() as $title ) {
				$r = $this->watchTitle( $title, $user, $params );
				$res[] = $r;
			}
			ApiResult::setIndexedTagName( $res, 'w' );
		} else {
			// dont allow use of old title parameter with new pageset parameters.
			$extraParams = array_keys( array_filter( $pageSet->extractRequestParams(), function ( $x ) {
				return $x !== null && $x !== false;
			} ) );

			if ( $extraParams ) {
				$p = $this->getModulePrefix();
				$this->dieUsage(
					"The parameter {$p}title can not be used with " . implode( ', ', $extraParams ),
					'invalidparammix'
				);
			}

			$title = Title::newFromText( $params['title'] );
			if ( !$title || !$title->isWatchable() ) {
				$this->dieUsageMsg( [ 'invalidtitle', $params['title'] ] );
			}
			$res = $this->watchTitle( $title, $user, $params, true );
/** @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);
    }
}
		}
		$this->getResult()->addValue( null, $this->getModuleName(), $res );

		$this->setContinuationManager( null );
		$continuationManager->setContinuationIntoResult( $this->getResult() );
	}

	private function watchTitle( Title $title, User $user, array $params,
		$compatibilityMode = false
	) {
		if ( !$title->isWatchable() ) {
			return [ 'title' => $title->getPrefixedText(), 'watchable' => 0 ];
		}

		$res = [ 'title' => $title->getPrefixedText() ];

		if ( $params['unwatch'] ) {
			$status = UnwatchAction::doUnwatch( $title, $user );
			$res['unwatched'] = $status->isOK();
			if ( $status->isOK() ) {
				$msgKey = $title->isTalkPage() ? 'removedwatchtext-talk' : 'removedwatchtext';
				$res['message'] = $this->msg( $msgKey, $title->getPrefixedText() )
					->title( $title )->parseAsBlock();
			}
		} else {
			$status = WatchAction::doWatch( $title, $user );
			$res['watched'] = $status->isOK();
			if ( $status->isOK() ) {
				$msgKey = $title->isTalkPage() ? 'addedwatchtext-talk' : 'addedwatchtext';
				$res['message'] = $this->msg( $msgKey, $title->getPrefixedText() )
					->title( $title )->parseAsBlock();
			}
		}

		if ( !$status->isOK() ) {
			if ( $compatibilityMode ) {
				$this->dieStatus( $status );
			}
			$res['error'] = $this->getErrorFromStatus( $status );
		}

		return $res;
	}

	/**
	 * Get a cached instance of an ApiPageSet object
	 * @return ApiPageSet
	 */
	private function getPageSet() {
		if ( $this->mPageSet === null ) {
			$this->mPageSet = new ApiPageSet( $this );
		}

		return $this->mPageSet;
	}

	public function mustBePosted() {
		return true;
	}

	public function isWriteMode() {
		return true;
	}

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

	public function getAllowedParams( $flags = 0 ) {
		$result = [
			'title' => [
				ApiBase::PARAM_TYPE => 'string',
				ApiBase::PARAM_DEPRECATED => true
			],
			'unwatch' => false,
			'continue' => [
				ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
			],
		];
		if ( $flags ) {
			$result += $this->getPageSet()->getFinalParams( $flags );
		}

		return $result;
	}

	protected function getExamplesMessages() {
		return [
			'action=watch&titles=Main_Page&token=123ABC'
				=> 'apihelp-watch-example-watch',
			'action=watch&titles=Main_Page&unwatch=&token=123ABC'
				=> 'apihelp-watch-example-unwatch',
			'action=watch&generator=allpages&gapnamespace=0&token=123ABC'
				=> 'apihelp-watch-example-generator',
		];
	}

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


1		<?php
2		/**
3		*
4		*
5		* Created on Jan 4, 2008
6		*
7		* Copyright © 2008 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,
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		* API module to allow users to watch a page
29		*
30		* @ingroup API
31		*/
32		class ApiWatch extends ApiBase {
33		private $mPageSet = null;
34
35		public function execute() {
36		$user = $this->getUser();
37		if ( !$user->isLoggedIn() ) {
38		$this->dieUsage( 'You must be logged-in to have a watchlist', 'notloggedin' );
39		}
40
41		if ( !$user->isAllowed( 'editmywatchlist' ) ) {
42		$this->dieUsage( 'You don\'t have permission to edit your watchlist', 'permissiondenied' );
43		}
44
45		$params = $this->extractRequestParams();
46
47		$continuationManager = new ApiContinuationManager( $this, [], [] );
48		$this->setContinuationManager( $continuationManager );
49
50		$pageSet = $this->getPageSet();
51		// by default we use pageset to extract the page to work on.
52		// title is still supported for backward compatibility
53		if ( !isset( $params['title'] ) ) {
54		$pageSet->execute();
55		$res = $pageSet->getInvalidTitlesAndRevisions( [
56		'invalidTitles',
57		'special',
58		'missingIds',
59		'missingRevIds',
60		'interwikiTitles'
61		] );
62
63		foreach ( $pageSet->getMissingTitles() as $title ) {
64		$r = $this->watchTitle( $title, $user, $params );
65		$r['missing'] = 1;
66		$res[] = $r;
67		}
68
69		foreach ( $pageSet->getGoodTitles() as $title ) {
70		$r = $this->watchTitle( $title, $user, $params );
71		$res[] = $r;
72		}
73		ApiResult::setIndexedTagName( $res, 'w' );
74		} else {
75		// dont allow use of old title parameter with new pageset parameters.
76		$extraParams = array_keys( array_filter( $pageSet->extractRequestParams(), function ( $x ) {
77		return $x !== null && $x !== false;
78		} ) );
79
80		if ( $extraParams ) {
81		$p = $this->getModulePrefix();
82		$this->dieUsage(
83		"The parameter {$p}title can not be used with " . implode( ', ', $extraParams ),
84		'invalidparammix'
85		);
86		}
87
88		$title = Title::newFromText( $params['title'] );
89		if ( !$title \|\| !$title->isWatchable() ) {
90		$this->dieUsageMsg( [ 'invalidtitle', $params['title'] ] );
91		}
92		$res = $this->watchTitle( $title, $user, $params, true );
		0 ignored issues – show Bug introduced 2016-02-23 18:13 UTC by Report Bug Copy Issue Report It seems like `$title` defined by `\Title::newFromText($params['title'])` on line `88` can be `null`; however, `ApiWatch::watchTitle()` 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...
93		}
94		$this->getResult()->addValue( null, $this->getModuleName(), $res );
95
96		$this->setContinuationManager( null );
97		$continuationManager->setContinuationIntoResult( $this->getResult() );
98		}
99
100		private function watchTitle( Title $title, User $user, array $params,
101		$compatibilityMode = false
102		) {
103		if ( !$title->isWatchable() ) {
104		return [ 'title' => $title->getPrefixedText(), 'watchable' => 0 ];
105		}
106
107		$res = [ 'title' => $title->getPrefixedText() ];
108
109		if ( $params['unwatch'] ) {
110		$status = UnwatchAction::doUnwatch( $title, $user );
111		$res['unwatched'] = $status->isOK();
112	View Code Duplication	if ( $status->isOK() ) {
113		$msgKey = $title->isTalkPage() ? 'removedwatchtext-talk' : 'removedwatchtext';
114		$res['message'] = $this->msg( $msgKey, $title->getPrefixedText() )
115		->title( $title )->parseAsBlock();
116		}
117		} else {
118		$status = WatchAction::doWatch( $title, $user );
119		$res['watched'] = $status->isOK();
120	View Code Duplication	if ( $status->isOK() ) {
121		$msgKey = $title->isTalkPage() ? 'addedwatchtext-talk' : 'addedwatchtext';
122		$res['message'] = $this->msg( $msgKey, $title->getPrefixedText() )
123		->title( $title )->parseAsBlock();
124		}
125		}
126
127		if ( !$status->isOK() ) {
128		if ( $compatibilityMode ) {
129		$this->dieStatus( $status );
130		}
131		$res['error'] = $this->getErrorFromStatus( $status );
132		}
133
134		return $res;
135		}
136
137		/**
138		* Get a cached instance of an ApiPageSet object
139		* @return ApiPageSet
140		*/
141		private function getPageSet() {
142		if ( $this->mPageSet === null ) {
143		$this->mPageSet = new ApiPageSet( $this );
144		}
145
146		return $this->mPageSet;
147		}
148
149		public function mustBePosted() {
150		return true;
151		}
152
153		public function isWriteMode() {
154		return true;
155		}
156
157		public function needsToken() {
158		return 'watch';
159		}
160
161	View Code Duplication	public function getAllowedParams( $flags = 0 ) {
162		$result = [
163		'title' => [
164		ApiBase::PARAM_TYPE => 'string',
165		ApiBase::PARAM_DEPRECATED => true
166		],
167		'unwatch' => false,
168		'continue' => [
169		ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
170		],
171		];
172		if ( $flags ) {
173		$result += $this->getPageSet()->getFinalParams( $flags );
174		}
175
176		return $result;
177		}
178
179		protected function getExamplesMessages() {
180		return [
181		'action=watch&titles=Main_Page&token=123ABC'
182		=> 'apihelp-watch-example-watch',
183		'action=watch&titles=Main_Page&unwatch=&token=123ABC'
184		=> 'apihelp-watch-example-unwatch',
185		'action=watch&generator=allpages&gapnamespace=0&token=123ABC'
186		=> 'apihelp-watch-example-generator',
187		];
188		}
189
190		public function getHelpUrls() {
191		return 'https://www.mediawiki.org/wiki/API:Watch';
192		}
193		}
194

wikimedia / mediawiki

ApiWatch::execute() C last analyzed 2016-11-13 17:42 UTC

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ApiWatch::execute() C
last analyzed 2016-11-13 17:42 UTC