22262497275

Committed 21 Feb 2026 07:01PM UTC coverage: 93.057% (+0.7%) from 92.367%

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added CLAUDE.md

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/src/Texy/Modules/ImageModule.php

<?php declare(strict_types=1);

/**
 * This file is part of the Texy! (https://texy.nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */

namespace Texy\Modules;

use Texy;
use Texy\Helpers;
use Texy\Image;
use Texy\Patterns;
use function explode, getimagesize, is_file, is_int, min, round, rtrim, str_contains, trim;


/**
 * Processes image syntax and detects image dimensions.
 */
final class ImageModule extends Texy\Module
{
        /** root of relative images (http) */
        public ?string $root = 'images/';

        /** @deprecated */
        public ?string $linkedRoot = 'images/';

        /** physical location of images on server */
        public ?string $fileRoot = null;

        /** left-floated images CSS class */
        public ?string $leftClass = null;

        /** right-floated images CSS class */
        public ?string $rightClass = null;

        /** @deprecated */
        public ?string $defaultAlt = '';

        /** @var array<string, Image> image references */
        private array $references = [];


        public function __construct(Texy\Texy $texy)
        {
                $this->texy = $texy;

                $texy->allowed['image/definition'] = true;
                $texy->addHandler('image', $this->solve(...));
                $texy->addHandler('beforeParse', $this->beforeParse(...));

                // [*image*]:LINK
                $texy->registerLinePattern(
                        $this->patternImage(...),
                        '#\[\*\ *+([^\n' . Patterns::MARK . ']{1,1000})' . Patterns::MODIFIER . '?\ *+(\*|(?<!<)>|<)\]' // [* urls .(title)[class]{style} >]
                        . '(?::(' . Patterns::LINK_URL . '|:))??()#Uu',
                        'image',
                );
        }


        /**
         * Text pre-processing.
         */
        private function beforeParse(Texy\Texy $texy, string &$text): void
        {
                if (!empty($texy->allowed['image/definition'])) {
                        // [*image*]: urls .(title)[class]{style}
                        $text = Texy\Regexp::replace(
                                $text,
                                '#^\[\*([^\n]{1,100})\*\]:[\ \t]+(.{1,1000})[\ \t]*' . Patterns::MODIFIER . '?\s*()$#mUu',
                                $this->patternReferenceDef(...),
                        );
                }
        }


        /**
         * Callback for: [*image*]: urls .(title)[class]{style}.
         * @param  string[]  $matches
         */
        private function patternReferenceDef(array $matches): string
        {
                [, $mRef, $mURLs, $mMod] = $matches;
                // [1] => [* (reference) *]
                // [2] => urls
                // [3] => .(title)[class]{style}<>

                $image = $this->factoryImage($mURLs, $mMod, tryRef: false);
                $this->addReference($mRef, $image);
                return '';
        }


        /**
         * Callback for [* small.jpg 80x13 || big.jpg .(alternative text)[class]{style}>]:LINK.
         * @param  string[]  $matches
         */
        public function patternImage(Texy\LineParser $parser, array $matches): Texy\HtmlElement|string|null
        {
                [, $mURLs, $mMod, $mAlign, $mLink] = $matches;
                // [1] => URLs
                // [2] => .(title)[class]{style}<>
                // [3] => * < >
                // [4] => url | [ref] | [*image*]

                $image = $this->factoryImage($mURLs, $mMod . $mAlign);

                if ($mLink) {
                        if ($mLink === ':') {
                                $link = new Texy\Link($image->linkedURL ?? $image->URL);
                                $link->raw = ':';
                                $link->type = $link::IMAGE;
                        } else {
                                $link = $this->texy->linkModule->factoryLink($mLink, null, null);
                        }
                } else {
                        $link = null;
                }

                return $this->texy->invokeAroundHandlers('image', $parser, [$image, $link]);
        }


        /**
         * Adds new named reference to image.
         */
        public function addReference(string $name, Image $image): void
        {
                $image->name = Helpers::toLower($name);
                $this->references[$image->name] = $image;
        }


        /**
         * Returns named reference.
         */
        public function getReference(string $name): ?Image
        {
                $name = Helpers::toLower($name);
                if (isset($this->references[$name])) {
                        return clone $this->references[$name];
                }

                return null;
        }


        /**
         * Parses image's syntax. Input: small.jpg 80x13 || linked.jpg
         */
        public function factoryImage(string $content, string $mod, bool $tryRef = true): Image
        {
                $image = $tryRef ? $this->getReference(trim($content)) : null;

                if (!$image) {
                        $texy = $this->texy;
                        $content = explode('|', $content);
                        $image = new Image;

                        // dimensions
                        $matches = null;
                        if ($matches = Texy\Regexp::match($content[0], '#^(.*) (\d+|\?) *(X|x) *(\d+|\?) *()$#U')) {
                                $image->URL = trim($matches[1]);
                                $image->asMax = $matches[3] === 'X';
                                $image->width = $matches[2] === '?' ? null : (int) $matches[2];
                                $image->height = $matches[4] === '?' ? null : (int) $matches[4];
                        } else {
                                $image->URL = trim($content[0]);
                        }

                        if (!$texy->checkURL($image->URL, $texy::FILTER_IMAGE)) {
                                $image->URL = null;
                        }

                        // linked image
                        if (isset($content[2])) {
                                $tmp = trim($content[2]);
                                if ($tmp !== '' && $texy->checkURL($tmp, $texy::FILTER_ANCHOR)) {
                                        $image->linkedURL = $tmp;
                                }
                        }
                }

                $image->modifier->setProperties($mod);
                return $image;
        }


        /**
         * Finish invocation.
         */
        public function solve(
                ?Texy\HandlerInvocation $invocation,
                Image $image,
                ?Texy\Link $link = null,
        ): Texy\HtmlElement|string|null
        {
                if ($image->URL === null) {
                        return null;
                }

                $texy = $this->texy;

                $mod = $image->modifier;
                $alt = $mod->title;
                $mod->title = null;
                $hAlign = $mod->hAlign;
                $mod->hAlign = null;

                $el = new Texy\HtmlElement('img');
                $el->attrs['src'] = null; // trick - move to front
                $mod->decorate($texy, $el);
                $el->attrs['src'] = Helpers::prependRoot($image->URL, $this->root);
                if (!isset($el->attrs['alt'])) {
                        $el->attrs['alt'] = $alt === null
                                ? $this->defaultAlt
                                : $texy->typographyModule->postLine($alt);
                }

                if ($hAlign) {
                        $var = $hAlign . 'Class'; // leftClass, rightClass
                        if (!empty($this->$var)) {
                                $el->attrs['class'] = (array) ($el->attrs['class'] ?? []);
                                $el->attrs['class'][] = $this->$var;

                        } elseif (empty($texy->alignClasses[$hAlign])) {
                                $el->attrs['style'] = (array) ($el->attrs['style'] ?? []);
                                $el->attrs['style']['float'] = $hAlign;

                        } else {
                                $el->attrs['class'] = (array) ($el->attrs['class'] ?? []);
                                $el->attrs['class'][] = $texy->alignClasses[$hAlign];
                        }
                }

                if (!is_int($image->width) || !is_int($image->height) || $image->asMax) {
                        $this->detectDimensions($image);
                }

                $el->attrs['width'] = $image->width;
                $el->attrs['height'] = $image->height;

                $texy->summary['images'][] = (string) $el->attrs['src'];

                if ($link) {
                        return $texy->linkModule->solve(null, $link, $el);
                }

                return $el;
        }


        private function detectDimensions(Image $image): void
        {
                // absolute URL & security check for double dot
                if ($image->URL === null || !Helpers::isRelative($image->URL) || str_contains($image->URL, '..')) {
                        return;
                }

                $file = rtrim((string) $this->fileRoot, '/\\') . '/' . $image->URL;
                if (!@is_file($file) || !($size = @getimagesize($file))) { // intentionally @
                        return;
                }

                if ($image->asMax) {
                        $ratio = 1;
                        if (is_int($image->width)) {
                                $ratio = min($ratio, $image->width / $size[0]);
                        }

                        if (is_int($image->height)) {
                                $ratio = min($ratio, $image->height / $size[1]);
                        }

                        $image->width = (int) round($ratio * $size[0]);
                        $image->height = (int) round($ratio * $size[1]);

                } elseif (is_int($image->width)) {
                        $image->height = (int) round($size[1] / $size[0] * $image->width);

                } elseif (is_int($image->height)) {
                        $image->width = (int) round($size[0] / $size[1] * $image->height);

                } else {
                        $image->width = $size[0];
                        $image->height = $size[1];
                }
        }
}

1	<?php declare(strict_types=1);
2
3	/**
4	* This file is part of the Texy! (https://texy.nette.org)
5	* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
6	*/
7
8	namespace Texy\Modules;
9
10	use Texy;
11	use Texy\Helpers;
12	use Texy\Image;
13	use Texy\Patterns;
14	use function explode, getimagesize, is_file, is_int, min, round, rtrim, str_contains, trim;
15
16
17	/**
18	* Processes image syntax and detects image dimensions.
19	*/
20	final class ImageModule extends Texy\Module
21	{
22	/** root of relative images (http) */
23	public ?string $root = 'images/';
24
25	/** @deprecated */
26	public ?string $linkedRoot = 'images/';
27
28	/** physical location of images on server */
29	public ?string $fileRoot = null;
30
31	/** left-floated images CSS class */
32	public ?string $leftClass = null;
33
34	/** right-floated images CSS class */
35	public ?string $rightClass = null;
36
37	/** @deprecated */
38	public ?string $defaultAlt = '';
39
40	/** @var array<string, Image> image references */
41	private array $references = [];
42
43
44	public function __construct(Texy\Texy $texy)	1✔
45	{
46	$this->texy = $texy;	1✔
47
48	$texy->allowed['image/definition'] = true;	1✔
49	$texy->addHandler('image', $this->solve(...));	1✔
50	$texy->addHandler('beforeParse', $this->beforeParse(...));	1✔
51
52	// [image]:LINK
53	$texy->registerLinePattern(	1✔
54	$this->patternImage(...),	1✔
55	'#\[\\ +([^\n' . Patterns::MARK . ']{1,1000})' . Patterns::MODIFIER . '?\ +(\\|(?<!<)>\|<)\]' // [* urls .(title)[class]{style} >]
56	. '(?::(' . Patterns::LINK_URL . '\|:))??()#Uu',	1✔
57	'image',	1✔
58	);
59	}	1✔
60
61
62	/**
63	* Text pre-processing.
64	*/
65	private function beforeParse(Texy\Texy $texy, string &$text): void	1✔
66	{
67	if (!empty($texy->allowed['image/definition'])) {	1✔
68	// [image]: urls .(title)[class]{style}
69	$text = Texy\Regexp::replace(	1✔
70	$text,	1✔
71	'#^\[\([^\n]{1,100})\\]:[\ \t]+(.{1,1000})[\ \t]' . Patterns::MODIFIER . '?\s()$#mUu',	1✔
72	$this->patternReferenceDef(...),	1✔
73	);
74	}
75	}	1✔
76
77
78	/**
79	* Callback for: [image]: urls .(title)[class]{style}.
80	* @param string[] $matches
81	*/
82	private function patternReferenceDef(array $matches): string	1✔
83	{
84	[, $mRef, $mURLs, $mMod] = $matches;	1✔
85	// [1] => [* (reference) *]
86	// [2] => urls
87	// [3] => .(title)[class]{style}<>
88
89	$image = $this->factoryImage($mURLs, $mMod, tryRef: false);	1✔
90	$this->addReference($mRef, $image);	1✔
91	return '';	1✔
92	}
93
94
95	/**
96	* Callback for [* small.jpg 80x13 \|\| big.jpg .(alternative text)[class]{style}>]:LINK.
97	* @param string[] $matches
98	*/
99	public function patternImage(Texy\LineParser $parser, array $matches): Texy\HtmlElement\|string\|null	1✔
100	{
101	[, $mURLs, $mMod, $mAlign, $mLink] = $matches;	1✔
102	// [1] => URLs
103	// [2] => .(title)[class]{style}<>
104	// [3] => * < >
105	// [4] => url \| [ref] \| [image]
106
107	$image = $this->factoryImage($mURLs, $mMod . $mAlign);	1✔
108
109	if ($mLink) {	1✔
110	if ($mLink === ':') {	1✔
111	$link = new Texy\Link($image->linkedURL ?? $image->URL);	1✔
112	$link->raw = ':';	1✔
113	$link->type = $link::IMAGE;	1✔
114	} else {
115	$link = $this->texy->linkModule->factoryLink($mLink, null, null);	1✔
116	}
117	} else {
118	$link = null;	1✔
119	}
120
121	return $this->texy->invokeAroundHandlers('image', $parser, [$image, $link]);	1✔
122	}
123
124
125	/**
126	* Adds new named reference to image.
127	*/
128	public function addReference(string $name, Image $image): void	1✔
129	{
130	$image->name = Helpers::toLower($name);	1✔
131	$this->references[$image->name] = $image;	1✔
132	}	1✔
133
134
135	/**
136	* Returns named reference.
137	*/
138	public function getReference(string $name): ?Image	1✔
139	{
140	$name = Helpers::toLower($name);	1✔
141	if (isset($this->references[$name])) {	1✔
142	return clone $this->references[$name];	1✔
143	}
144
145	return null;	1✔
146	}
147
148
149	/**
150	* Parses image's syntax. Input: small.jpg 80x13 \|\| linked.jpg
151	*/
152	public function factoryImage(string $content, string $mod, bool $tryRef = true): Image	1✔
153	{
154	$image = $tryRef ? $this->getReference(trim($content)) : null;	1✔
155
156	if (!$image) {	1✔
157	$texy = $this->texy;	1✔
158	$content = explode('\|', $content);	1✔
159	$image = new Image;	1✔
160
161	// dimensions
162	$matches = null;	1✔
163	if ($matches = Texy\Regexp::match($content[0], '#^(.) (\d+\|\?) (X\|x) (\d+\|\?) ()$#U')) {	1✔
164	$image->URL = trim($matches[1]);	1✔
165	$image->asMax = $matches[3] === 'X';	1✔
166	$image->width = $matches[2] === '?' ? null : (int) $matches[2];	1✔
167	$image->height = $matches[4] === '?' ? null : (int) $matches[4];	1✔
168	} else {
169	$image->URL = trim($content[0]);	1✔
170	}
171
172	if (!$texy->checkURL($image->URL, $texy::FILTER_IMAGE)) {	1✔
173	$image->URL = null;	×
174	}
175
176	// linked image
177	if (isset($content[2])) {	1✔
178	$tmp = trim($content[2]);	1✔
179	if ($tmp !== '' && $texy->checkURL($tmp, $texy::FILTER_ANCHOR)) {	1✔
180	$image->linkedURL = $tmp;	1✔
181	}
182	}
183	}
184
185	$image->modifier->setProperties($mod);	1✔
186	return $image;	1✔
187	}
188
189
190	/**
191	* Finish invocation.
192	*/
193	public function solve(	1✔
194	?Texy\HandlerInvocation $invocation,
195	Image $image,
196	?Texy\Link $link = null,
197	): Texy\HtmlElement\|string\|null
198	{
199	if ($image->URL === null) {	1✔
200	return null;	×
201	}
202
203	$texy = $this->texy;	1✔
204
205	$mod = $image->modifier;	1✔
206	$alt = $mod->title;	1✔
207	$mod->title = null;	1✔
208	$hAlign = $mod->hAlign;	1✔
209	$mod->hAlign = null;	1✔
210
211	$el = new Texy\HtmlElement('img');	1✔
212	$el->attrs['src'] = null; // trick - move to front	1✔
213	$mod->decorate($texy, $el);	1✔
214	$el->attrs['src'] = Helpers::prependRoot($image->URL, $this->root);	1✔
215	if (!isset($el->attrs['alt'])) {	1✔
216	$el->attrs['alt'] = $alt === null	1✔
217	? $this->defaultAlt	1✔
218	: $texy->typographyModule->postLine($alt);	1✔
219	}
220
221	if ($hAlign) {	1✔
222	$var = $hAlign . 'Class'; // leftClass, rightClass	1✔
223	if (!empty($this->$var)) {	1✔
224	$el->attrs['class'] = (array) ($el->attrs['class'] ?? []);	1✔
225	$el->attrs['class'][] = $this->$var;	1✔
226
227	} elseif (empty($texy->alignClasses[$hAlign])) {	1✔
228	$el->attrs['style'] = (array) ($el->attrs['style'] ?? []);	1✔
229	$el->attrs['style']['float'] = $hAlign;	1✔
230
231	} else {
232	$el->attrs['class'] = (array) ($el->attrs['class'] ?? []);	1✔
233	$el->attrs['class'][] = $texy->alignClasses[$hAlign];	1✔
234	}
235	}
236
237	if (!is_int($image->width) \|\| !is_int($image->height) \|\| $image->asMax) {	1✔
238	$this->detectDimensions($image);	1✔
239	}
240
241	$el->attrs['width'] = $image->width;	1✔
242	$el->attrs['height'] = $image->height;	1✔
243
244	$texy->summary['images'][] = (string) $el->attrs['src'];	1✔
245
246	if ($link) {	1✔
247	return $texy->linkModule->solve(null, $link, $el);	1✔
248	}
249
250	return $el;	1✔
251	}
252
253
254	private function detectDimensions(Image $image): void	1✔
255	{
256	// absolute URL & security check for double dot
257	if ($image->URL === null \|\| !Helpers::isRelative($image->URL) \|\| str_contains($image->URL, '..')) {	1✔
258	return;	1✔
259	}
260
261	$file = rtrim((string) $this->fileRoot, '/\\') . '/' . $image->URL;	1✔
262	if (!@is_file($file) \|\| !($size = @getimagesize($file))) { // intentionally @	1✔
263	return;	1✔
264	}
265
266	if ($image->asMax) {	1✔
267	$ratio = 1;	×
268	if (is_int($image->width)) {	×
269	$ratio = min($ratio, $image->width / $size[0]);	×
270	}
271
272	if (is_int($image->height)) {	×
273	$ratio = min($ratio, $image->height / $size[1]);	×
274	}
275
276	$image->width = (int) round($ratio * $size[0]);	×
277	$image->height = (int) round($ratio * $size[1]);	×
278
279	} elseif (is_int($image->width)) {	1✔
280	$image->height = (int) round($size[1] / $size[0] * $image->width);	1✔
281
282	} elseif (is_int($image->height)) {	1✔
283	$image->width = (int) round($size[0] / $size[1] * $image->height);	1✔
284
285	} else {
286	$image->width = $size[0];	1✔
287	$image->height = $size[1];	1✔
288	}
289	}	1✔
290	}

dg / texy / 22262497275

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