AccessibilityController::invertSvgIconsColor() - Code Metrics - Inspection of "Merge pull request #9984 from nextcloud/inverted-s..." - nextcloud/server - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 8032e3...4751f1 )

by Morris

created 2018-07-19 21:54 UTC

AccessibilityController::invertSvgIconsColor() A

↳ Parent: AccessibilityController

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
nc	1
nop	1
dl	0
loc	3
rs	10
c	0
b	0
f	0

<?php
declare (strict_types = 1);
/**
 * @copyright Copyright (c) 2018 John Molakvoæ (skjnldsv) <[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\Accessibility\Controller;

use Leafo\ScssPhp\Compiler;
use Leafo\ScssPhp\Exception\ParserException;
use Leafo\ScssPhp\Formatter\Crunched;
use OCP\AppFramework\Controller;
use OCP\AppFramework\Http;
use OCP\AppFramework\Http\DataDisplayResponse;
use OCP\AppFramework\Utility\ITimeFactory;
use OCP\App\IAppManager;
use OCP\IConfig;
use OCP\ILogger;
use OCP\IRequest;
use OCP\IURLGenerator;
use OCP\IUserManager;
use OCP\IUserSession;
use OC\Template\IconsCacher;

class AccessibilityController extends Controller {

	/** @var string */
	protected $appName;

	/** @var string */
	protected $serverRoot;

	/** @var IConfig */
	private $config;

	/** @var IUserManager */
	private $userManager;

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

	/** @var IURLGenerator */
	private $urlGenerator;

	/** @var ITimeFactory */
	protected $timeFactory;

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

	/** @var IAppManager */
	private $appManager;

	/** @var IconsCacher */
	protected $iconsCacher;

	/**
	 * Account constructor.
	 *
	 * @param string $appName
	 * @param IRequest $request
	 * @param IConfig $config
	 * @param IUserManager $userManager
	 * @param ILogger $logger
	 * @param IURLGenerator $urlGenerator
	 * @param ITimeFactory $timeFactory
	 * @param IUserSession $userSession
	 * @param IAppManager $appManager
	 */
	public function __construct(string $appName,
								IRequest $request,
								IConfig $config,
								IUserManager $userManager,
								ILogger $logger,
								IURLGenerator $urlGenerator,
								ITimeFactory $timeFactory,
								IUserSession $userSession,
								IAppManager $appManager,
								IconsCacher $iconsCacher) {
		parent::__construct($appName, $request);
		$this->appName      = $appName;
		$this->config       = $config;
		$this->userManager  = $userManager;
		$this->logger       = $logger;
		$this->urlGenerator = $urlGenerator;
		$this->timeFactory  = $timeFactory;
		$this->userSession  = $userSession;
		$this->appManager   = $appManager;
		$this->iconsCacher  = $iconsCacher;

		$this->serverRoot = \OC::$SERVERROOT;
		$this->appRoot    = $this->appManager->getAppPath($this->appName);
class MyClass { }

$x = new MyClass();
$x->foo = true;
	}

	/**
	 * @NoAdminRequired
	 * @NoCSRFRequired
	 *
	 * @return DataDisplayResponse
	 */
	public function getCss(): DataDisplayResponse {
		$css        = '';
		$imports    = '';
		$userValues = $this->getUserValues();

		foreach ($userValues as $key => $scssFile) {
			if ($scssFile !== false) {
				$imports .= '@import "' . $scssFile . '";';
			}
		}

		if ($imports !== '') {
			$scss = new Compiler();
			$scss->setImportPaths([
				$this->appRoot . '/css/',
				$this->serverRoot . '/core/css/'
			]);

			// Continue after throw
			$scss->setIgnoreErrors(true);
			$scss->setFormatter(Crunched::class);

			// Import theme, variables and compile css4 variables
			try {
				$css .= $scss->compile(
					$imports .
					'@import "variables.scss";' .
					'@import "css-variables.scss";'
				);
			} catch (ParserException $e) {

				$this->logger->error($e->getMessage(), ['app' => 'core']);
			}
		}

		// We don't want to override vars with url since path is different
		$css = $this->filterOutRule('/--[a-z-:]+url\([^;]+\)/mi', $css);

		// Rebase all urls
		$appWebRoot = substr($this->appRoot, strlen($this->serverRoot) - strlen(\OC::$WEBROOT));
		$css        = $this->rebaseUrls($css, $appWebRoot . '/css');

		if (in_array('themedark', $userValues) && $this->iconsCacher->getCachedCSS() && $this->iconsCacher->getCachedCSS()->getSize() > 0) {
			$iconsCss = $this->invertSvgIconsColor($this->iconsCacher->getCachedCSS()->getContent());
			$css = $css . $iconsCss;
		}

		$response = new DataDisplayResponse($css, Http::STATUS_OK, ['Content-Type' => 'text/css']);

		// Set cache control
		$ttl = 31536000;
		$response->addHeader('Cache-Control', 'max-age=' . $ttl . ', immutable');
		$expires = new \DateTime();
		$expires->setTimestamp($this->timeFactory->getTime());
		$expires->add(new \DateInterval('PT' . $ttl . 'S'));
		$response->addHeader('Expires', $expires->format(\DateTime::RFC1123));
		$response->addHeader('Pragma', 'cache');

		return $response;
	}

	/**
	 * Return an array with the user theme & font settings
	 *
	 * @return array
	 */
	private function getUserValues(): array{
		$userTheme = $this->config->getUserValue($this->userSession->getUser()->getUID(), $this->appName, 'theme', false);
		$userFont  = $this->config->getUserValue($this->userSession->getUser()->getUID(), $this->appName, 'font', false);

		return [$userTheme, $userFont];
	}

	/**
	 * Remove all matches from the $rule regex
	 *
	 * @param string $rule regex to match
	 * @param string $css string to parse
	 * @return string
	 */
	private function filterOutRule(string $rule, string $css): string {
		return preg_replace($rule, '', $css);
	}

	/**
	 * Add the correct uri prefix to make uri valid again
	 *
	 * @param string $css
	 * @param string $webDir
	 * @return string
	 */
	private function rebaseUrls(string $css, string $webDir): string {
		$re    = '/url\([\'"]([^\/][\.\w?=\/-]*)[\'"]\)/x';
		$subst = 'url(\'' . $webDir . '/$1\')';

		return preg_replace($re, $subst, $css);
	}

	/**
	 * Remove all matches from the $rule regex
	 *
	 * @param string $css string to parse
	 * @return string
	 */
	private function invertSvgIconsColor(string $css) {
		return str_replace(['/000', '/fff', '/***'], ['/***', '/000', '/fff'], $css);
	}
}


1			<?php
2			declare (strict_types = 1);
3			/**
4			* @copyright Copyright (c) 2018 John Molakvoæ (skjnldsv) <[email protected]>
5			*
6			* @license GNU AGPL version 3 or any later version
7			*
8			* This program is free software: you can redistribute it and/or modify
9			* it under the terms of the GNU Affero General Public License as
10			* published by the Free Software Foundation, either version 3 of the
11			* License, or (at your option) any later version.
12			*
13			* This program is distributed in the hope that it will be useful,
14			* but WITHOUT ANY WARRANTY; without even the implied warranty of
15			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			* GNU Affero General Public License for more details.
17			*
18			* You should have received a copy of the GNU Affero General Public License
19			* along with this program. If not, see <http://www.gnu.org/licenses/>.
20			*
21			*/
22
23			namespace OCA\Accessibility\Controller;
24
25			use Leafo\ScssPhp\Compiler;
26			use Leafo\ScssPhp\Exception\ParserException;
27			use Leafo\ScssPhp\Formatter\Crunched;
28			use OCP\AppFramework\Controller;
29			use OCP\AppFramework\Http;
30			use OCP\AppFramework\Http\DataDisplayResponse;
31			use OCP\AppFramework\Utility\ITimeFactory;
32			use OCP\App\IAppManager;
33			use OCP\IConfig;
34			use OCP\ILogger;
35			use OCP\IRequest;
36			use OCP\IURLGenerator;
37			use OCP\IUserManager;
38			use OCP\IUserSession;
39			use OC\Template\IconsCacher;
40
41			class AccessibilityController extends Controller {
42
43			/** @var string */
44			protected $appName;
45
46			/** @var string */
47			protected $serverRoot;
48
49			/** @var IConfig */
50			private $config;
51
52			/** @var IUserManager */
53			private $userManager;
54
55			/** @var ILogger */
56			private $logger;
57
58			/** @var IURLGenerator */
59			private $urlGenerator;
60
61			/** @var ITimeFactory */
62			protected $timeFactory;
63
64			/** @var IUserSession */
65			private $userSession;
66
67			/** @var IAppManager */
68			private $appManager;
69
70			/** @var IconsCacher */
71			protected $iconsCacher;
72
73			/**
74			* Account constructor.
75			*
76			* @param string $appName
77			* @param IRequest $request
78			* @param IConfig $config
79			* @param IUserManager $userManager
80			* @param ILogger $logger
81			* @param IURLGenerator $urlGenerator
82			* @param ITimeFactory $timeFactory
83			* @param IUserSession $userSession
84			* @param IAppManager $appManager
85			*/
86			public function __construct(string $appName,
87			IRequest $request,
88			IConfig $config,
89			IUserManager $userManager,
90			ILogger $logger,
91			IURLGenerator $urlGenerator,
92			ITimeFactory $timeFactory,
93			IUserSession $userSession,
94			IAppManager $appManager,
95			IconsCacher $iconsCacher) {
96			parent::__construct($appName, $request);
97			$this->appName = $appName;
98			$this->config = $config;
99			$this->userManager = $userManager;
100			$this->logger = $logger;
101			$this->urlGenerator = $urlGenerator;
102			$this->timeFactory = $timeFactory;
103			$this->userSession = $userSession;
104			$this->appManager = $appManager;
105			$this->iconsCacher = $iconsCacher;
106
107			$this->serverRoot = \OC::$SERVERROOT;
108			$this->appRoot = $this->appManager->getAppPath($this->appName);
			0 ignored issues – show Bug introduced 2018-06-15 12:03 UTC by Report Bug Copy Issue Report The property `appRoot` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
109			}
110
111			/**
112			* @NoAdminRequired
113			* @NoCSRFRequired
114			*
115			* @return DataDisplayResponse
116			*/
117			public function getCss(): DataDisplayResponse {
118			$css = '';
119			$imports = '';
120			$userValues = $this->getUserValues();
121
122			foreach ($userValues as $key => $scssFile) {
123			if ($scssFile !== false) {
124			$imports .= '@import "' . $scssFile . '";';
125			}
126			}
127
128			if ($imports !== '') {
129			$scss = new Compiler();
130			$scss->setImportPaths([
131			$this->appRoot . '/css/',
132			$this->serverRoot . '/core/css/'
133			]);
134
135			// Continue after throw
136			$scss->setIgnoreErrors(true);
137			$scss->setFormatter(Crunched::class);
138
139			// Import theme, variables and compile css4 variables
140			try {
141			$css .= $scss->compile(
142			$imports .
143			'@import "variables.scss";' .
144			'@import "css-variables.scss";'
145			);
146			} catch (ParserException $e) {
			0 ignored issues – show Bug introduced 2017-07-24 15:21 UTC by Report Bug Copy Issue Report The class `Leafo\ScssPhp\Exception\ParserException` does not exist. Did you forget a USE statement, or did you not list all dependencies? Scrutinizer analyzes your `composer.json`/`composer.lock` file if available to determine the classes, and functions that are defined by your dependencies. It seems like the listed class was neither found in your dependencies, nor was it found in the analyzed files in your repository. If you are using some other form of dependency management, you might want to disable this analysis. Loading history...
147			$this->logger->error($e->getMessage(), ['app' => 'core']);
148			}
149			}
150
151			// We don't want to override vars with url since path is different
152			$css = $this->filterOutRule('/--[a-z-:]+url\([^;]+\)/mi', $css);
153
154			// Rebase all urls
155			$appWebRoot = substr($this->appRoot, strlen($this->serverRoot) - strlen(\OC::$WEBROOT));
156			$css = $this->rebaseUrls($css, $appWebRoot . '/css');
157
158			if (in_array('themedark', $userValues) && $this->iconsCacher->getCachedCSS() && $this->iconsCacher->getCachedCSS()->getSize() > 0) {
159			$iconsCss = $this->invertSvgIconsColor($this->iconsCacher->getCachedCSS()->getContent());
160			$css = $css . $iconsCss;
161			}
162
163			$response = new DataDisplayResponse($css, Http::STATUS_OK, ['Content-Type' => 'text/css']);
164
165			// Set cache control
166			$ttl = 31536000;
167			$response->addHeader('Cache-Control', 'max-age=' . $ttl . ', immutable');
168			$expires = new \DateTime();
169			$expires->setTimestamp($this->timeFactory->getTime());
170			$expires->add(new \DateInterval('PT' . $ttl . 'S'));
171			$response->addHeader('Expires', $expires->format(\DateTime::RFC1123));
172			$response->addHeader('Pragma', 'cache');
173
174			return $response;
175			}
176
177			/**
178			* Return an array with the user theme & font settings
179			*
180			* @return array
181			*/
182			private function getUserValues(): array{
183			$userTheme = $this->config->getUserValue($this->userSession->getUser()->getUID(), $this->appName, 'theme', false);
184			$userFont = $this->config->getUserValue($this->userSession->getUser()->getUID(), $this->appName, 'font', false);
185
186			return [$userTheme, $userFont];
187			}
188
189			/**
190			* Remove all matches from the $rule regex
191			*
192			* @param string $rule regex to match
193			* @param string $css string to parse
194			* @return string
195			*/
196			private function filterOutRule(string $rule, string $css): string {
197			return preg_replace($rule, '', $css);
198			}
199
200			/**
201			* Add the correct uri prefix to make uri valid again
202			*
203			* @param string $css
204			* @param string $webDir
205			* @return string
206			*/
207			private function rebaseUrls(string $css, string $webDir): string {
208			$re = '/url\([\'"]([^\/][\.\w?=\/-]*)[\'"]\)/x';
209			$subst = 'url(\'' . $webDir . '/$1\')';
210
211			return preg_replace($re, $subst, $css);
212			}
213
214			/**
215			* Remove all matches from the $rule regex
216			*
217			* @param string $css string to parse
218			* @return string
219			*/
220			private function invertSvgIconsColor(string $css) {
221			return str_replace(['/000', '/fff', '/*'], ['/*', '/000', '/fff'], $css);
222			}
223			}
224

nextcloud / server

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AccessibilityController::invertSvgIconsColor() A

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