EmojiHelper::isValidSingleEmoji() - Code Metrics - Inspection of "Merge pull request #31703 from nextcloud/techdebt/..." - nextcloud/server - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( 2d938a...0d8733 )

by Joas

created 2022-04-29 16:31 UTC

EmojiHelper::isValidSingleEmoji() B

↳ Parent: EmojiHelper

Complexity

Conditions	10
Paths	10

Size

Total Lines	39
Code Lines	21

Duplication

Lines	0
Ratio	0 %

Importance

Changes

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

use OCP\IDBConnection;
use OCP\IEmojiHelper;

class EmojiHelper implements IEmojiHelper {
	private IDBConnection $db;

	public function __construct(IDBConnection $db) {
		$this->db = $db;
	}

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

	public function isValidSingleEmoji(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;
28
29			use OCP\IDBConnection;
30			use OCP\IEmojiHelper;
31
32			class EmojiHelper implements IEmojiHelper {
33			private IDBConnection $db;
34
35			public function __construct(IDBConnection $db) {
36			$this->db = $db;
37			}
38
39			public function doesPlatformSupportEmoji(): bool {
40			return $this->db->supports4ByteText() &&
41			\class_exists(\IntlBreakIterator::class);
42			}
43
44			public function isValidSingleEmoji(string $emoji): bool {
45			$intlBreakIterator = \IntlBreakIterator::createCharacterInstance();
46			$intlBreakIterator->setText($emoji);
47
48			$characterCount = 0;
49			while ($intlBreakIterator->next() !== \IntlBreakIterator::DONE) {
50			$characterCount++;
51			}
52
53			if ($characterCount !== 1) {
54			return false;
55			}
56
57			$codePointIterator = \IntlBreakIterator::createCodePointInstance();
58			$codePointIterator->setText($emoji);
59
60			foreach ($codePointIterator->getPartsIterator() as $codePoint) {
61			$codePointType = \IntlChar::charType($codePoint);
62
63			// If the current code-point is an emoji or a modifier (like a skin-tone)
64			// just continue and check the next character
65			if ($codePointType === \IntlChar::CHAR_CATEGORY_MODIFIER_SYMBOL \|\|
66			$codePointType === \IntlChar::CHAR_CATEGORY_MODIFIER_LETTER \|\|
67			$codePointType === \IntlChar::CHAR_CATEGORY_OTHER_SYMBOL \|\|
68			$codePointType === \IntlChar::CHAR_CATEGORY_GENERAL_OTHER_TYPES) {
69			continue;
70			}
71
72			// If it's neither a modifier nor an emoji, we only allow
73			// a zero-width-joiner or a variation selector 16
74			$codePointValue = \IntlChar::ord($codePoint);
75			if ($codePointValue === 8205 \|\| $codePointValue === 65039) {
76			continue;
77			}
78
79			return false;
80			}
81
82			return true;
83			}
84			}
85

nextcloud / server

Push — master ( 2d938a...0d8733 )

EmojiHelper::isValidSingleEmoji() B

Complexity

Size

Duplication

Importance

How to fix Complexity

Long Method

Duplication Side-by-Side

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