EmojiHelper::isValidEmoji() - Code Metrics - Inspection of "Merge pull request #31700 from nextcloud/bugfix/no..." - nextcloud/server - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( 04d466...37106e )

by Blizzz

created 2022-03-24 16:36 UTC

EmojiHelper::isValidEmoji() B

↳ Parent: EmojiHelper

Complexity

Conditions	10
Paths	10

Size

Total Lines	39
Code Lines	21

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	10
eloc	21
nc	10
nop	1
dl	0
loc	39
rs	7.6666
c	1
b	0
f	0

How to fix Complexity

<?php

declare(strict_types=1);

/**
 * @copyright Copyright (c) 2020, Georg Ehrke
 *
 * @author Georg Ehrke <[email protected]>
 * @author Joas Schilling <[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 OC\Comments;

use OCP\IDBConnection;

/**
 * Copied OCA\UserStatus\Service\EmojiService
 * Needs to be unified later
 */
class EmojiHelper {

	/** @var IDBConnection */
	private $db;

	/**
	 * EmojiService constructor.
	 *
	 * @param IDBConnection $db
	 */
	public function __construct(IDBConnection $db) {
		$this->db = $db;
	}

	/**
	 * @return bool
	 */
	public function doesPlatformSupportEmoji(): bool {
		return $this->db->supports4ByteText() &&
			\class_exists(\IntlBreakIterator::class);
	}

	/**
	 * @param string $emoji
	 * @return bool
	 */
	public function isValidEmoji(string $emoji): bool {
		$intlBreakIterator = \IntlBreakIterator::createCharacterInstance();
		$intlBreakIterator->setText($emoji);

		$characterCount = 0;
		while ($intlBreakIterator->next() !== \IntlBreakIterator::DONE) {
			$characterCount++;
		}

		if ($characterCount !== 1) {
			return false;
		}

		$codePointIterator = \IntlBreakIterator::createCodePointInstance();
		$codePointIterator->setText($emoji);

		foreach ($codePointIterator->getPartsIterator() as $codePoint) {
			$codePointType = \IntlChar::charType($codePoint);

			// If the current code-point is an emoji or a modifier (like a skin-tone)
			// just continue and check the next character
			if ($codePointType === \IntlChar::CHAR_CATEGORY_MODIFIER_SYMBOL ||
				$codePointType === \IntlChar::CHAR_CATEGORY_MODIFIER_LETTER ||
				$codePointType === \IntlChar::CHAR_CATEGORY_OTHER_SYMBOL ||
				$codePointType === \IntlChar::CHAR_CATEGORY_GENERAL_OTHER_TYPES) {
				continue;
			}

			// If it's neither a modifier nor an emoji, we only allow
			// a zero-width-joiner or a variation selector 16
			$codePointValue = \IntlChar::ord($codePoint);
			if ($codePointValue === 8205 || $codePointValue === 65039) {
				continue;
			}

			return false;
		}

		return true;
	}
}


1			<?php
2
3			declare(strict_types=1);
4
5			/**
6			* @copyright Copyright (c) 2020, Georg Ehrke
7			*
8			* @author Georg Ehrke <[email protected]>
9			* @author Joas Schilling <[email protected]>
10			*
11			* @license GNU AGPL version 3 or any later version
12			*
13			* This program is free software: you can redistribute it and/or modify
14			* it under the terms of the GNU Affero General Public License as
15			* published by the Free Software Foundation, either version 3 of the
16			* License, or (at your option) any later version.
17			*
18			* This program is distributed in the hope that it will be useful,
19			* but WITHOUT ANY WARRANTY; without even the implied warranty of
20			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21			* GNU Affero General Public License for more details.
22			*
23			* You should have received a copy of the GNU Affero General Public License
24			* along with this program. If not, see <http://www.gnu.org/licenses/>.
25			*
26			*/
27			namespace OC\Comments;
28
29			use OCP\IDBConnection;
30
31			/**
32			* Copied OCA\UserStatus\Service\EmojiService
33			* Needs to be unified later
34			*/
35			class EmojiHelper {
36
37			/** @var IDBConnection */
38			private $db;
39
40			/**
41			* EmojiService constructor.
42			*
43			* @param IDBConnection $db
44			*/
45			public function __construct(IDBConnection $db) {
46			$this->db = $db;
47			}
48
49			/**
50			* @return bool
51			*/
52			public function doesPlatformSupportEmoji(): bool {
53			return $this->db->supports4ByteText() &&
54			\class_exists(\IntlBreakIterator::class);
55			}
56
57			/**
58			* @param string $emoji
59			* @return bool
60			*/
61			public function isValidEmoji(string $emoji): bool {
62			$intlBreakIterator = \IntlBreakIterator::createCharacterInstance();
63			$intlBreakIterator->setText($emoji);
64
65			$characterCount = 0;
66			while ($intlBreakIterator->next() !== \IntlBreakIterator::DONE) {
67			$characterCount++;
68			}
69
70			if ($characterCount !== 1) {
71			return false;
72			}
73
74			$codePointIterator = \IntlBreakIterator::createCodePointInstance();
75			$codePointIterator->setText($emoji);
76
77			foreach ($codePointIterator->getPartsIterator() as $codePoint) {
78			$codePointType = \IntlChar::charType($codePoint);
79
80			// If the current code-point is an emoji or a modifier (like a skin-tone)
81			// just continue and check the next character
82			if ($codePointType === \IntlChar::CHAR_CATEGORY_MODIFIER_SYMBOL \|\|
83			$codePointType === \IntlChar::CHAR_CATEGORY_MODIFIER_LETTER \|\|
84			$codePointType === \IntlChar::CHAR_CATEGORY_OTHER_SYMBOL \|\|
85			$codePointType === \IntlChar::CHAR_CATEGORY_GENERAL_OTHER_TYPES) {
86			continue;
87			}
88
89			// If it's neither a modifier nor an emoji, we only allow
90			// a zero-width-joiner or a variation selector 16
91			$codePointValue = \IntlChar::ord($codePoint);
92			if ($codePointValue === 8205 \|\| $codePointValue === 65039) {
93			continue;
94			}
95
96			return false;
97			}
98
99			return true;
100			}
101			}
102

nextcloud / server

Push — master ( 04d466...37106e )

EmojiHelper::isValidEmoji() B

Complexity

Size

Duplication

Importance

How to fix Complexity

Long Method

Duplication Side-by-Side

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