16418663342

Committed 21 Jul 2025 01:42PM UTC coverage: 81.954%. First build

Build # 16418663342

Build Type

Pull #2203

github

Committed by

web-flow

Commit Message

Merge 8b92b286c into 60eb2aabd

Pull Request Pull Request #2203: Apply fixes from StyleCI

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70.33

/src/Assets/Image.php

<?php

/**
 * This file is part of Cecil.
 *
 * (c) Arnaud Ligny <arnaud@ligny.fr>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace Cecil\Assets;

use Cecil\Exception\RuntimeException;
use Intervention\Image\Drivers\Gd\Driver as GdDriver;
use Intervention\Image\Drivers\Imagick\Driver as ImagickDriver;
use Intervention\Image\Encoders\AutoEncoder;
use Intervention\Image\ImageManager;

/**
 * Image class.
 *
 * Provides methods to manipulate images, such as resizing, cropping, converting,
 * and generating data URLs.
 */
class Image
{
    /**
     * Create new manager instance with available driver.
     */
    private static function manager(): ImageManager
    {
        $driver = null;

        // ImageMagick is available? (for a future quality option)
        if (\extension_loaded('imagick') && class_exists('Imagick')) {
            $driver = ImagickDriver::class;
        }
        // Use GD, because it's the faster driver
        if (\extension_loaded('gd') && \function_exists('gd_info')) {
            $driver = GdDriver::class;
        }

        if ($driver) {
            return ImageManager::withDriver(
                $driver,
                [
                    'autoOrientation' => true,
                    'decodeAnimation' => true,
                    'blendingColor' => 'ffffff',
                    'strip' => true, // remove metadata
                ]
            );
        }

        throw new RuntimeException('PHP GD (or Imagick) extension is required.');
    }

    /**
     * Scales down an image Asset to the given width, keeping the aspect ratio.
     *
     * @throws RuntimeException
     */
    public static function resize(Asset $asset, int $width, int $quality): string
    {
        try {
            // creates image object from source
            $image = self::manager()->read($asset['content']);
            // resizes to $width with constraint the aspect-ratio and unwanted upsizing
            $image->scaleDown(width: $width);
            // return image data
            return (string) $image->encodeByMediaType($asset['subtype'], /** @scrutinizer ignore-type */ progressive: true, /** @scrutinizer ignore-type */ interlaced: false, quality: $quality);
        } catch (\Exception $e) {
            throw new RuntimeException(\sprintf('Asset "%s" can\'t be resized: %s', $asset['path'], $e->getMessage()));
        }
    }

    /**
     * Crops an image Asset to the given width and height, keeping the aspect ratio.
     *
     * @throws RuntimeException
     */
    public static function cover(Asset $asset, int $width, int $height, string $position, int $quality): string
    {
        try {
            // creates image object from source
            $image = self::manager()->read($asset['content']);
            // turns an animated image (i.e GIF) into a static image
            if ($image->isAnimated()) {
                $image = $image->removeAnimation('25%'); // use 25% to avoid an "empty" frame
            }
            // crops the image
            $image->cover(width: $width, height: $height, position: $position);
            // return image data
            return (string) $image->encodeByMediaType($asset['subtype'], /** @scrutinizer ignore-type */ progressive: true, /** @scrutinizer ignore-type */ interlaced: false, quality: $quality);
        } catch (\Exception $e) {
            throw new RuntimeException(\sprintf('Asset "%s" can\'t be cropped: %s', $asset['path'], $e->getMessage()));
        }
    }

    /**
     * Makes an image Asset maskable, meaning it can be used as a web app icon.
     *
     * @throws RuntimeException
     */
    public static function maskable(Asset $asset, int $quality): string
    {
        try {
            // creates image object from source
            $source = self::manager()->read($asset['content']);
            // creates a new image with the dominant color and adds a 15% margin
            $image = self::manager()->create(
                width: (int) round($asset['width'] * (1 + 15 / 100), 0),
                height: (int) round($asset['height'] * (1 + 15 / 100), 0)
            )->fill(self::getDominantColor($asset));
            // inserts the original image in the center
            $image->place($source, position: 'center');
            // scales down the new image to the original image size
            $image->scaleDown(width: $asset['width']);
            // return image data
            return (string) $image->encodeByMediaType($asset['subtype'], /** @scrutinizer ignore-type */ progressive: true, /** @scrutinizer ignore-type */ interlaced: false, quality: $quality);
        } catch (\Exception $e) {
            throw new RuntimeException(\sprintf('Can\'t make Asset "%s" maskable: %s', $asset['path'], $e->getMessage()));
        }
    }

    /**
     * Converts an image Asset to the target format.
     *
     * @throws RuntimeException
     */
    public static function convert(Asset $asset, string $format, int $quality): string
    {
        try {
            $image = self::manager()->read($asset['content']);

            if (!\function_exists("image$format")) {
                throw new RuntimeException(\sprintf('Function "image%s" is not available.', $format));
            }

            return (string) $image->encodeByExtension($format, /** @scrutinizer ignore-type */ progressive: true, /** @scrutinizer ignore-type */ interlaced: false, quality: $quality);
        } catch (\Exception $e) {
            throw new RuntimeException(\sprintf('Not able to convert "%s" to %s: %s', $asset['path'], $format, $e->getMessage()));
        }
    }

    /**
     * Returns the Data URL (encoded in Base64).
     *
     * @throws RuntimeException
     */
    public static function getDataUrl(Asset $asset, int $quality): string
    {
        try {
            $image = self::manager()->read($asset['content']);

            return (string) $image->encode(new AutoEncoder(quality: $quality))->toDataUri();
        } catch (\Exception $e) {
            throw new RuntimeException(\sprintf('Can\'t get Data URL of "%s": %s', $asset['path'], $e->getMessage()));
        }
    }

    /**
     * Returns the dominant RGB color of an image asset.
     *
     * @throws RuntimeException
     */
    public static function getDominantColor(Asset $asset): string
    {
        try {
            $image = self::manager()->read(self::resize($asset, 100, 50));

            return $image->reduceColors(1)->pickColor(0, 0)->toString();
        } catch (\Exception $e) {
            throw new RuntimeException(\sprintf('Can\'t get dominant color of "%s": %s', $asset['path'], $e->getMessage()));
        }
    }

    /**
     * Returns a Low Quality Image Placeholder (LQIP) as data URL.
     *
     * @throws RuntimeException
     */
    public static function getLqip(Asset $asset): string
    {
        try {
            $image = self::manager()->read(self::resize($asset, 100, 50));

            return (string) $image->blur(50)->encode()->toDataUri();
        } catch (\Exception $e) {
            throw new RuntimeException(\sprintf('can\'t create LQIP of "%s": %s', $asset['path'], $e->getMessage()));
        }
    }

    /**
     * Build the `srcset` attribute for responsive images.
     * e.g.: `srcset="/img-480.jpg 480w, /img-800.jpg 800w"`.
     *
     * @throws RuntimeException
     */
    public static function buildSrcset(Asset $asset, array $widths): string
    {
        if (!self::isImage($asset)) {
            throw new RuntimeException(\sprintf('can\'t build "srcset" of "%s": it\'s not an image file.', $asset['path']));
        }

        $srcset = '';
        $widthMax = 0;
        sort($widths, SORT_NUMERIC);
        $widths = array_reverse($widths);
        foreach ($widths as $width) {
            if ($asset['width'] < $width) {
                continue;
            }
            $img = $asset->resize($width);
            $srcset .= \sprintf('%s %sw, ', (string) $img, $width);
            $widthMax = $width;
        }
        // adds source image
        if (!empty($srcset) && ($asset['width'] < max($widths) && $asset['width'] != $widthMax)) {
            $srcset .= \sprintf('%s %sw', (string) $asset, $asset['width']);
        }

        return rtrim($srcset, ', ');
    }

    /**
     * Returns the value of the "sizes" attribute corresponding to the configured class.
     */
    public static function getSizes(string $class, array $sizes = []): string
    {
        $result = '';
        $classArray = explode(' ', $class);
        foreach ($classArray as $class) {
            if (\array_key_exists($class, $sizes)) {
                $result = $sizes[$class] . ', ';
            }
        }
        if (!empty($result)) {
            return trim($result, ', ');
        }

        return $sizes['default'] ?? '100vw';
    }

    /**
     * Checks if an asset is an animated GIF.
     */
    public static function isAnimatedGif(Asset $asset): bool
    {
        // an animated GIF contains multiple "frames", with each frame having a header made up of:
        // 1. a static 4-byte sequence (\x00\x21\xF9\x04)
        // 2. 4 variable bytes
        // 3. a static 2-byte sequence (\x00\x2C)
        $count = preg_match_all('#\x00\x21\xF9\x04.{4}\x00[\x2C\x21]#s', (string) $asset['content']);

        return $count > 1;
    }

    /**
     * Returns true if asset is a SVG.
     */
    public static function isSVG(Asset $asset): bool
    {
        return \in_array($asset['subtype'], ['image/svg', 'image/svg+xml']) || $asset['ext'] == 'svg';
    }

    /**
     * Returns true if asset is an ICO.
     */
    public static function isIco(Asset $asset): bool
    {
        return \in_array($asset['subtype'], ['image/x-icon', 'image/vnd.microsoft.icon']) || $asset['ext'] == 'ico';
    }

    /**
     * Asset is a valid image?
     */
    public static function isImage(Asset $asset): bool
    {
        if ($asset['type'] !== 'image' || self::isSVG($asset) || self::isIco($asset)) {
            return false;
        }

        return true;
    }

    /**
     * Returns SVG attributes.
     *
     * @return \SimpleXMLElement|false
     */
    public static function getSvgAttributes(Asset $asset)
    {
        if (!self::isSVG($asset)) {
            return false;
        }

        if (false === $xml = simplexml_load_string($asset['content'] ?? '')) {
            return false;
        }

        return $xml->attributes();
    }
}

1	<?php
2
3	/**
4	* This file is part of Cecil.
5	*
6	* (c) Arnaud Ligny <arnaud@ligny.fr>
7	*
8	* For the full copyright and license information, please view the LICENSE
9	* file that was distributed with this source code.
10	*/
11
12	declare(strict_types=1);
13
14	namespace Cecil\Assets;
15
16	use Cecil\Exception\RuntimeException;
17	use Intervention\Image\Drivers\Gd\Driver as GdDriver;
18	use Intervention\Image\Drivers\Imagick\Driver as ImagickDriver;
19	use Intervention\Image\Encoders\AutoEncoder;
20	use Intervention\Image\ImageManager;
21
22	/**
23	* Image class.
24	*
25	* Provides methods to manipulate images, such as resizing, cropping, converting,
26	* and generating data URLs.
27	*/
28	class Image
29	{
30	/**
31	* Create new manager instance with available driver.
32	*/
33	private static function manager(): ImageManager
34	{
35	$driver = null;	1✔
36
37	// ImageMagick is available? (for a future quality option)
38	if (\extension_loaded('imagick') && class_exists('Imagick')) {	1✔
39	$driver = ImagickDriver::class;	1✔
40	}
41	// Use GD, because it's the faster driver
42	if (\extension_loaded('gd') && \function_exists('gd_info')) {	1✔
43	$driver = GdDriver::class;	1✔
44	}
45
46	if ($driver) {	1✔
47	return ImageManager::withDriver(	1✔
48	$driver,	1✔
49	[	1✔
50	'autoOrientation' => true,	1✔
51	'decodeAnimation' => true,	1✔
52	'blendingColor' => 'ffffff',	1✔
53	'strip' => true, // remove metadata	1✔
54	]	1✔
55	);	1✔
56	}
57
58	throw new RuntimeException('PHP GD (or Imagick) extension is required.');	×
59	}
60
61	/**
62	* Scales down an image Asset to the given width, keeping the aspect ratio.
63	*
64	* @throws RuntimeException
65	*/
66	public static function resize(Asset $asset, int $width, int $quality): string
67	{
68	try {
69	// creates image object from source
70	$image = self::manager()->read($asset['content']);	1✔
71	// resizes to $width with constraint the aspect-ratio and unwanted upsizing
72	$image->scaleDown(width: $width);	1✔
73	// return image data
74	return (string) $image->encodeByMediaType($asset['subtype'], /** @scrutinizer ignore-type / progressive: true, /* @scrutinizer ignore-type */ interlaced: false, quality: $quality);	1✔
75	} catch (\Exception $e) {	×
76	throw new RuntimeException(\sprintf('Asset "%s" can\'t be resized: %s', $asset['path'], $e->getMessage()));	×
77	}
78	}
79
80	/**
81	* Crops an image Asset to the given width and height, keeping the aspect ratio.
82	*
83	* @throws RuntimeException
84	*/
85	public static function cover(Asset $asset, int $width, int $height, string $position, int $quality): string
86	{
87	try {
88	// creates image object from source
89	$image = self::manager()->read($asset['content']);	1✔
90	// turns an animated image (i.e GIF) into a static image
91	if ($image->isAnimated()) {	1✔
92	$image = $image->removeAnimation('25%'); // use 25% to avoid an "empty" frame	×
93	}
94	// crops the image
95	$image->cover(width: $width, height: $height, position: $position);	1✔
96	// return image data
97	return (string) $image->encodeByMediaType($asset['subtype'], /** @scrutinizer ignore-type / progressive: true, /* @scrutinizer ignore-type */ interlaced: false, quality: $quality);	1✔
98	} catch (\Exception $e) {	×
99	throw new RuntimeException(\sprintf('Asset "%s" can\'t be cropped: %s', $asset['path'], $e->getMessage()));	×
100	}
101	}
102
103	/**
104	* Makes an image Asset maskable, meaning it can be used as a web app icon.
105	*
106	* @throws RuntimeException
107	*/
108	public static function maskable(Asset $asset, int $quality): string
109	{
110	try {
111	// creates image object from source
112	$source = self::manager()->read($asset['content']);	×
113	// creates a new image with the dominant color and adds a 15% margin
114	$image = self::manager()->create(	×
NEW 115	width: (int) round($asset['width'] * (1 + 15 / 100), 0),	×
NEW 116	height: (int) round($asset['height'] * (1 + 15 / 100), 0)	×
117	)->fill(self::getDominantColor($asset));	×
118	// inserts the original image in the center
119	$image->place($source, position: 'center');	×
120	// scales down the new image to the original image size
121	$image->scaleDown(width: $asset['width']);	×
122	// return image data
123	return (string) $image->encodeByMediaType($asset['subtype'], /** @scrutinizer ignore-type / progressive: true, /* @scrutinizer ignore-type */ interlaced: false, quality: $quality);	×
124	} catch (\Exception $e) {	×
125	throw new RuntimeException(\sprintf('Can\'t make Asset "%s" maskable: %s', $asset['path'], $e->getMessage()));	×
126	}
127	}
128
129	/**
130	* Converts an image Asset to the target format.
131	*
132	* @throws RuntimeException
133	*/
134	public static function convert(Asset $asset, string $format, int $quality): string
135	{
136	try {
137	$image = self::manager()->read($asset['content']);	1✔
138
139	if (!\function_exists("image$format")) {	1✔
140	throw new RuntimeException(\sprintf('Function "image%s" is not available.', $format));	×
141	}
142
143	return (string) $image->encodeByExtension($format, /** @scrutinizer ignore-type / progressive: true, /* @scrutinizer ignore-type */ interlaced: false, quality: $quality);	1✔
144	} catch (\Exception $e) {	×
145	throw new RuntimeException(\sprintf('Not able to convert "%s" to %s: %s', $asset['path'], $format, $e->getMessage()));	×
146	}
147	}
148
149	/**
150	* Returns the Data URL (encoded in Base64).
151	*
152	* @throws RuntimeException
153	*/
154	public static function getDataUrl(Asset $asset, int $quality): string
155	{
156	try {
157	$image = self::manager()->read($asset['content']);	1✔
158
159	return (string) $image->encode(new AutoEncoder(quality: $quality))->toDataUri();	1✔
160	} catch (\Exception $e) {	×
161	throw new RuntimeException(\sprintf('Can\'t get Data URL of "%s": %s', $asset['path'], $e->getMessage()));	×
162	}
163	}
164
165	/**
166	* Returns the dominant RGB color of an image asset.
167	*
168	* @throws RuntimeException
169	*/
170	public static function getDominantColor(Asset $asset): string
171	{
172	try {
173	$image = self::manager()->read(self::resize($asset, 100, 50));	1✔
174
175	return $image->reduceColors(1)->pickColor(0, 0)->toString();	1✔
176	} catch (\Exception $e) {	×
177	throw new RuntimeException(\sprintf('Can\'t get dominant color of "%s": %s', $asset['path'], $e->getMessage()));	×
178	}
179	}
180
181	/**
182	* Returns a Low Quality Image Placeholder (LQIP) as data URL.
183	*
184	* @throws RuntimeException
185	*/
186	public static function getLqip(Asset $asset): string
187	{
188	try {
189	$image = self::manager()->read(self::resize($asset, 100, 50));	1✔
190
191	return (string) $image->blur(50)->encode()->toDataUri();	1✔
192	} catch (\Exception $e) {	×
193	throw new RuntimeException(\sprintf('can\'t create LQIP of "%s": %s', $asset['path'], $e->getMessage()));	×
194	}
195	}
196
197	/**
198	* Build the `srcset` attribute for responsive images.
199	* e.g.: `srcset="/img-480.jpg 480w, /img-800.jpg 800w"`.
200	*
201	* @throws RuntimeException
202	*/
203	public static function buildSrcset(Asset $asset, array $widths): string
204	{
205	if (!self::isImage($asset)) {	1✔
206	throw new RuntimeException(\sprintf('can\'t build "srcset" of "%s": it\'s not an image file.', $asset['path']));	1✔
207	}
208
209	$srcset = '';	1✔
210	$widthMax = 0;	1✔
211	sort($widths, SORT_NUMERIC);	1✔
212	$widths = array_reverse($widths);	1✔
213	foreach ($widths as $width) {	1✔
214	if ($asset['width'] < $width) {	1✔
215	continue;	1✔
216	}
217	$img = $asset->resize($width);	1✔
218	$srcset .= \sprintf('%s %sw, ', (string) $img, $width);	1✔
219	$widthMax = $width;	1✔
220	}
221	// adds source image
222	if (!empty($srcset) && ($asset['width'] < max($widths) && $asset['width'] != $widthMax)) {	1✔
223	$srcset .= \sprintf('%s %sw', (string) $asset, $asset['width']);	1✔
224	}
225
226	return rtrim($srcset, ', ');	1✔
227	}
228
229	/**
230	* Returns the value of the "sizes" attribute corresponding to the configured class.
231	*/
232	public static function getSizes(string $class, array $sizes = []): string
233	{
234	$result = '';	1✔
235	$classArray = explode(' ', $class);	1✔
236	foreach ($classArray as $class) {	1✔
237	if (\array_key_exists($class, $sizes)) {	1✔
238	$result = $sizes[$class] . ', ';	1✔
239	}
240	}
241	if (!empty($result)) {	1✔
242	return trim($result, ', ');	1✔
243	}
244
245	return $sizes['default'] ?? '100vw';	1✔
246	}
247
248	/**
249	* Checks if an asset is an animated GIF.
250	*/
251	public static function isAnimatedGif(Asset $asset): bool
252	{
253	// an animated GIF contains multiple "frames", with each frame having a header made up of:
254	// 1. a static 4-byte sequence (\x00\x21\xF9\x04)
255	// 2. 4 variable bytes
256	// 3. a static 2-byte sequence (\x00\x2C)
257	$count = preg_match_all('#\x00\x21\xF9\x04.{4}\x00[\x2C\x21]#s', (string) $asset['content']);	1✔
258
259	return $count > 1;	1✔
260	}
261
262	/**
263	* Returns true if asset is a SVG.
264	*/
265	public static function isSVG(Asset $asset): bool
266	{
267	return \in_array($asset['subtype'], ['image/svg', 'image/svg+xml']) \|\| $asset['ext'] == 'svg';	1✔
268	}
269
270	/**
271	* Returns true if asset is an ICO.
272	*/
273	public static function isIco(Asset $asset): bool
274	{
275	return \in_array($asset['subtype'], ['image/x-icon', 'image/vnd.microsoft.icon']) \|\| $asset['ext'] == 'ico';	1✔
276	}
277
278	/**
279	* Asset is a valid image?
280	*/
281	public static function isImage(Asset $asset): bool
282	{
283	if ($asset['type'] !== 'image' \|\| self::isSVG($asset) \|\| self::isIco($asset)) {	1✔
284	return false;	1✔
285	}
286
287	return true;	1✔
288	}
289
290	/**
291	* Returns SVG attributes.
292	*
293	* @return \SimpleXMLElement\|false
294	*/
295	public static function getSvgAttributes(Asset $asset)
296	{
297	if (!self::isSVG($asset)) {	1✔
298	return false;	×
299	}
300
301	if (false === $xml = simplexml_load_string($asset['content'] ?? '')) {	1✔
302	return false;	×
303	}
304
305	return $xml->attributes();	1✔
306	}
307	}

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