CalendarContactInteractionListener::handle() - Code Metrics - Inspection of "Merge pull request #25464 from nextcloud/enhanceme..." - nextcloud/server - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 9c88e3...9c5c86 )

by Christoph

created 2021-02-03 18:10 UTC

CalendarContactInteractionListener::handle() C

↳ Parent: CalendarContactInteractionListener

Complexity

Conditions	14
Paths	29

Size

Total Lines	41
Code Lines	21

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
cc	14
eloc	21
c	2
b	0
f	0
nc	29
nop	1
dl	0
loc	41
rs	6.2666

How to fix Complexity

<?php

declare(strict_types=1);

/*
 * @copyright 2021 Christoph Wurst <[email protected]>
 *
 * @author 2021 Christoph Wurst <[email protected]>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace OCA\DAV\Listener;

use OCA\DAV\Connector\Sabre\Principal;
use OCA\DAV\Events\CalendarObjectCreatedEvent;
use OCA\DAV\Events\CalendarObjectUpdatedEvent;
use OCA\DAV\Events\CalendarShareUpdatedEvent;
use OCP\Contacts\Events\ContactInteractedWithEvent;
use OCP\EventDispatcher\Event;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\EventDispatcher\IEventListener;
use OCP\IUser;
use OCP\IUserSession;
use OCP\Mail\IMailer;
use Psr\Log\LoggerInterface;
use Sabre\VObject\Component\VEvent;
use Sabre\VObject\Parameter;
use Sabre\VObject\Property;
use Sabre\VObject\Reader;
use Throwable;
use function strlen;
use function strpos;
use function substr;

class CalendarContactInteractionListener implements IEventListener {
	private const URI_USERS = 'principals/users/';

	/** @var IEventDispatcher */
	private $dispatcher;

	/** @var IUserSession */
	private $userSession;

	/** @var Principal */
	private $principalConnector;

	/** @var IMailer */
	private $mailer;

	/** @var LoggerInterface */
	private $logger;

	public function __construct(IEventDispatcher $dispatcher,
								IUserSession $userSession,
								Principal $principalConnector,
								IMailer $mailer,
								LoggerInterface $logger) {
		$this->dispatcher = $dispatcher;
		$this->userSession = $userSession;
		$this->principalConnector = $principalConnector;
		$this->mailer = $mailer;
		$this->logger = $logger;
	}

	public function handle(Event $event): void {
		if (($user = $this->userSession->getUser()) === null) {
			// Without user context we can't do anything
			return;
		}

		if ($event instanceof CalendarObjectCreatedEvent || $event instanceof CalendarObjectUpdatedEvent) {
			// users: href => principal:principals/users/admin
			foreach ($event->getShares() as $share) {
				if (!isset($share['href'])) {
					continue;
				}
				$this->emitFromUri($share['href'], $user);
			}

			// emit interaction for email attendees as well
			if (isset($event->getObjectData()['calendardata'])) {
				try {
					$calendar = Reader::read($event->getObjectData()['calendardata']);
					if ($calendar->VEVENT) {
						foreach ($calendar->VEVENT as $calendarEvent) {
							$this->emitFromObject($calendarEvent, $user);
						}
					}
				} catch (Throwable $e) {
					$this->logger->warning('Could not read calendar data for interaction events: ' . $e->getMessage(), [
						'exception' => $e,
					]);
				}
			}
		}

		if ($event instanceof CalendarShareUpdatedEvent && !empty($event->getAdded())) {
			// group: href => principal:principals/groups/admin
			// users: href => principal:principals/users/admin
			foreach ($event->getAdded() as $added) {
				if (!isset($added['href'])) {
					// Nothing to work with
					continue;
				}
				$this->emitFromUri($added['href'], $user);
			}
		}
	}

	private function emitFromUri(string $uri, IUser $user): void {
		$principal = $this->principalConnector->findByUri(
			$uri,
			$this->principalConnector->getPrincipalPrefix()
		);
		if ($principal === null) {

			// Invalid principal
			return;
		}
		if (strpos($principal, self::URI_USERS) !== 0) {
			// Not a user principal
			return;
		}

		$uid = substr($principal, strlen(self::URI_USERS));
		$this->dispatcher->dispatchTyped(
			(new ContactInteractedWithEvent($user))->setUid($uid)
		);
	}

	private function emitFromObject(VEvent $vevent, IUser $user): void {
		if (!$vevent->ATTENDEE) {
			// Nothing left to do
			return;
		}

		foreach ($vevent->ATTENDEE as $attendee) {
			if (!($attendee instanceof Property)) {
				continue;
			}

			$cuType = $attendee->offsetGet('CUTYPE');
			if ($cuType instanceof Parameter && $cuType->getValue() !== 'INDIVIDUAL') {
				// Don't care about those
				continue;
			}

			$mailTo = $attendee->getValue();
			if (strpos($mailTo, 'mailto:') !== 0) {
				// Doesn't look like an email
				continue;
			}
			$email = substr($mailTo, strlen('mailto:'));
			if (!$this->mailer->validateMailAddress($email)) {
				// This really isn't a valid email
				continue;
			}

			$this->dispatcher->dispatchTyped(
				(new ContactInteractedWithEvent($user))->setEmail($email)
			);
		}
	}
}


1			<?php
2
3			declare(strict_types=1);
4
5			/*
6			* @copyright 2021 Christoph Wurst <[email protected]>
7			*
8			* @author 2021 Christoph Wurst <[email protected]>
9			*
10			* @license GNU AGPL version 3 or any later version
11			*
12			* This program is free software: you can redistribute it and/or modify
13			* it under the terms of the GNU Affero General Public License as
14			* published by the Free Software Foundation, either version 3 of the
15			* License, or (at your option) any later version.
16			*
17			* This program is distributed in the hope that it will be useful,
18			* but WITHOUT ANY WARRANTY; without even the implied warranty of
19			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20			* GNU Affero General Public License for more details.
21			*
22			* You should have received a copy of the GNU Affero General Public License
23			* along with this program. If not, see <http://www.gnu.org/licenses/>.
24			*/
25
26			namespace OCA\DAV\Listener;
27
28			use OCA\DAV\Connector\Sabre\Principal;
29			use OCA\DAV\Events\CalendarObjectCreatedEvent;
30			use OCA\DAV\Events\CalendarObjectUpdatedEvent;
31			use OCA\DAV\Events\CalendarShareUpdatedEvent;
32			use OCP\Contacts\Events\ContactInteractedWithEvent;
33			use OCP\EventDispatcher\Event;
34			use OCP\EventDispatcher\IEventDispatcher;
35			use OCP\EventDispatcher\IEventListener;
36			use OCP\IUser;
37			use OCP\IUserSession;
38			use OCP\Mail\IMailer;
39			use Psr\Log\LoggerInterface;
40			use Sabre\VObject\Component\VEvent;
41			use Sabre\VObject\Parameter;
42			use Sabre\VObject\Property;
43			use Sabre\VObject\Reader;
44			use Throwable;
45			use function strlen;
46			use function strpos;
47			use function substr;
48
49			class CalendarContactInteractionListener implements IEventListener {
50			private const URI_USERS = 'principals/users/';
51
52			/** @var IEventDispatcher */
53			private $dispatcher;
54
55			/** @var IUserSession */
56			private $userSession;
57
58			/** @var Principal */
59			private $principalConnector;
60
61			/** @var IMailer */
62			private $mailer;
63
64			/** @var LoggerInterface */
65			private $logger;
66
67			public function __construct(IEventDispatcher $dispatcher,
68			IUserSession $userSession,
69			Principal $principalConnector,
70			IMailer $mailer,
71			LoggerInterface $logger) {
72			$this->dispatcher = $dispatcher;
73			$this->userSession = $userSession;
74			$this->principalConnector = $principalConnector;
75			$this->mailer = $mailer;
76			$this->logger = $logger;
77			}
78
79			public function handle(Event $event): void {
80			if (($user = $this->userSession->getUser()) === null) {
81			// Without user context we can't do anything
82			return;
83			}
84
85			if ($event instanceof CalendarObjectCreatedEvent \|\| $event instanceof CalendarObjectUpdatedEvent) {
86			// users: href => principal:principals/users/admin
87			foreach ($event->getShares() as $share) {
88			if (!isset($share['href'])) {
89			continue;
90			}
91			$this->emitFromUri($share['href'], $user);
92			}
93
94			// emit interaction for email attendees as well
95			if (isset($event->getObjectData()['calendardata'])) {
96			try {
97			$calendar = Reader::read($event->getObjectData()['calendardata']);
98			if ($calendar->VEVENT) {
99			foreach ($calendar->VEVENT as $calendarEvent) {
100			$this->emitFromObject($calendarEvent, $user);
101			}
102			}
103			} catch (Throwable $e) {
104			$this->logger->warning('Could not read calendar data for interaction events: ' . $e->getMessage(), [
105			'exception' => $e,
106			]);
107			}
108			}
109			}
110
111			if ($event instanceof CalendarShareUpdatedEvent && !empty($event->getAdded())) {
112			// group: href => principal:principals/groups/admin
113			// users: href => principal:principals/users/admin
114			foreach ($event->getAdded() as $added) {
115			if (!isset($added['href'])) {
116			// Nothing to work with
117			continue;
118			}
119			$this->emitFromUri($added['href'], $user);
120			}
121			}
122			}
123
124			private function emitFromUri(string $uri, IUser $user): void {
125			$principal = $this->principalConnector->findByUri(
126			$uri,
127			$this->principalConnector->getPrincipalPrefix()
128			);
129			if ($principal === null) {
			0 ignored issues – show introduced 2021-02-03 12:06 UTC by Report Bug Copy Issue Report The condition `$principal === null` is always `false`. Loading history...
130			// Invalid principal
131			return;
132			}
133			if (strpos($principal, self::URI_USERS) !== 0) {
134			// Not a user principal
135			return;
136			}
137
138			$uid = substr($principal, strlen(self::URI_USERS));
139			$this->dispatcher->dispatchTyped(
140			(new ContactInteractedWithEvent($user))->setUid($uid)
141			);
142			}
143
144			private function emitFromObject(VEvent $vevent, IUser $user): void {
145			if (!$vevent->ATTENDEE) {
146			// Nothing left to do
147			return;
148			}
149
150			foreach ($vevent->ATTENDEE as $attendee) {
151			if (!($attendee instanceof Property)) {
152			continue;
153			}
154
155			$cuType = $attendee->offsetGet('CUTYPE');
156			if ($cuType instanceof Parameter && $cuType->getValue() !== 'INDIVIDUAL') {
157			// Don't care about those
158			continue;
159			}
160
161			$mailTo = $attendee->getValue();
162			if (strpos($mailTo, 'mailto:') !== 0) {
163			// Doesn't look like an email
164			continue;
165			}
166			$email = substr($mailTo, strlen('mailto:'));
167			if (!$this->mailer->validateMailAddress($email)) {
168			// This really isn't a valid email
169			continue;
170			}
171
172			$this->dispatcher->dispatchTyped(
173			(new ContactInteractedWithEvent($user))->setEmail($email)
174			);
175			}
176			}
177			}
178

nextcloud / server

Push — master ( 9c88e3...9c5c86 )

CalendarContactInteractionListener::handle() C

Complexity

Size

Duplication

Importance

How to fix Complexity

Long Method

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