shopbuilder / app / Models / ReSizer.php

ReSizer.php in ShopBuilder – WooCommerce Builder For Elementor 3.1.2, at app/Models/ReSizer.php

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1	<?php
2	/**
3	* Class for Image Resize.
4	*
5	* @package RadiusTheme\SB
6	*/
7
8	namespace RadiusTheme\SB\Models;
9
10	if ( ! defined( 'ABSPATH' ) ) {
11	die();
12	}
13
14	use Exception;
15
16	// Do not allow directly accessing this file.
17	if ( ! defined( 'ABSPATH' ) ) {
18	exit( 'This script cannot be accessed directly.' );
19	}
20
21	/**
22	* Class for Image Resize.
23	*/
24	class ReSizer {
25	/**
26	* The singleton instance
27	*/
28	private static $instance = null;
29
30	/**
31	* Should an Exception be thrown on error?
32	* If false (default), then the error will just be logged.
33	*/
34	public $throwOnError = false;
35
36	/**
37	* No cloning allowed
38	*/
39	private function __clone() {
40	}
41
42	/**
43	* For your custom default usage you may want to initialize an ReSizer object by yourself and then have own defaults
44	*/
45	public static function getInstance() {
46	if ( self::$instance == null ) {
47	self::$instance = new self();
48	}
49
50	return self::$instance;
51	}
52
53	/**
54	* Run, forest.
55	*/
56	public function process( $url, $width = null, $height = null, $crop = null, $single = true, $upscale = false ) {
57	try {
58	// Validate inputs.
59	if ( ! $url ) {
60	throw new Exception( '$url parameter is required' );
61	}
62	if ( ! $width ) {
63	throw new Exception( '$width parameter is required' );
64	}
65	if ( ! $height ) {
66	throw new Exception( '$height parameter is required' );
67	}
68
69	// Caipt'n, ready to hook.
70	if ( true === $upscale ) {
71	add_filter( 'image_resize_dimensions', [ $this, 'aq_upscale' ], 10, 6 );
72	}
73
74	// Define upload path & dir.
75	$upload_info = wp_upload_dir();
76	$upload_dir = $upload_info['basedir'];
77	$upload_url = $upload_info['baseurl'];
78
79	$http_prefix = 'http://';
80	$https_prefix = 'https://';
81	$relative_prefix = '//'; // The protocol-relative URL
82
83	/*
84	* if the $url scheme differs from $upload_url scheme, make them match
85	* if the schemes differe, images don't show up.
86	*/
87	if ( ! strncmp( $url, $https_prefix, strlen( $https_prefix ) ) ) { // if url begins with https:// make $upload_url begin with https:// as well
88	$upload_url = str_replace( $http_prefix, $https_prefix, $upload_url );
89	} elseif ( ! strncmp( $url, $http_prefix, strlen( $http_prefix ) ) ) { // if url begins with http:// make $upload_url begin with http:// as well
90	$upload_url = str_replace( $https_prefix, $http_prefix, $upload_url );
91	} elseif ( ! strncmp( $url, $relative_prefix, strlen( $relative_prefix ) ) ) { // if url begins with // make $upload_url begin with // as well
92	$upload_url = str_replace(
93	[
94	0 => "$http_prefix",
95	1 => "$https_prefix",
96	],
97	$relative_prefix,
98	$upload_url
99	);
100	}
101
102	// Check if $img_url is local.
103	if ( false === strpos( $url, $upload_url ) ) {
104	throw new Exception( 'Image must be local: ' . $url );
105	}
106
107	// Define path of image.
108	$rel_path = str_replace( $upload_url, '', $url );
109	$img_path = $upload_dir . $rel_path;
110
111	// Check if img path exists, and is an image indeed.
112	if ( ! file_exists( $img_path ) or ! getimagesize( $img_path ) ) {
113	throw new Exception( 'Image file does not exist (or is not an image): ' . $img_path );
114	}
115
116	// Get image info.
117	$info = pathinfo( $img_path );
118	$ext = $info['extension'];
119	list( $orig_w, $orig_h ) = getimagesize( $img_path );
120
121	// Get image size after cropping.
122	$dims = image_resize_dimensions( $orig_w, $orig_h, $width, $height, $crop );
123	$dst_w = ! empty( $dims[4] ) ? $dims[4] : null;
124	$dst_h = ! empty( $dims[5] ) ? $dims[5] : null;
125
126	// Return the original image only if it exactly fits the needed measures.
127	if ( ! $dims && ( ( ( null === $height && $orig_w == $width ) xor ( null === $width && $orig_h == $height ) ) xor ( $height == $orig_h && $width == $orig_w ) ) ) {
128	$img_url = $url;
129	$dst_w = $orig_w;
130	$dst_h = $orig_h;
131	} else {
132	// Use this to check if cropped image already exists, so we can return that instead.
133	$suffix = "{$dst_w}x{$dst_h}";
134	$dst_rel_path = str_replace( '.' . $ext, '', $rel_path );
135	$destfilename = "{$upload_dir}{$dst_rel_path}-{$suffix}.{$ext}";
136
137	if ( ! $dims \|\| ( true == $crop && false == $upscale && ( $dst_w < $width \|\| $dst_h < $height ) ) ) {
138	// Can't resize, so return false saying that the action to do could not be processed as planned.
139	throw new Exception( 'Unable to resize image because image_resize_dimensions() failed' );
140	} // Else check if cache exists.
141	elseif ( file_exists( $destfilename ) && getimagesize( $destfilename ) ) {
142	$img_url = "{$upload_url}{$dst_rel_path}-{$suffix}.{$ext}";
143	} // Else, we resize the image and return the new resized image url.
144	else {
145
146	$editor = wp_get_image_editor( $img_path );
147
148	if ( is_wp_error( $editor ) \|\| is_wp_error( $editor->resize( $width, $height, $crop ) ) ) {
149	throw new Exception( 'Unable to get WP_Image_Editor: ' . $editor->get_error_message() . ' (is GD or ImageMagick installed?)' );
150	}
151
152	$resized_file = $editor->save();
153
154	if ( ! is_wp_error( $resized_file ) ) {
155	$resized_rel_path = str_replace( $upload_dir, '', $resized_file['path'] );
156	$img_url = $upload_url . $resized_rel_path;
157	} else {
158	throw new Exception( 'Unable to save resized image file: ' . $editor->get_error_message() );
159	}
160	}
161	}
162
163	// Okay, leave the ship.
164	if ( true === $upscale ) {
165	remove_filter( 'image_resize_dimensions', [ $this, 'aq_upscale' ] );
166	}
167
168	// Return the output.
169	if ( $single ) {
170	// str return.
171	$image = $img_url;
172	} else {
173	// array return.
174	$image = [
175	0 => $img_url,
176	1 => $dst_w,
177	2 => $dst_h,
178	];
179	}
180
181	return $image;
182	} catch ( Exception $ex ) {
183	//error_log( 'ReSizer.process() error: ' . $ex->getMessage() );
184
185	if ( $this->throwOnError ) {
186	// Bubble up exception.
187	throw $ex;
188	} else {
189	// Return false, so that this patch is backwards-compatible.
190	return false;
191	}
192	}
193	}
194
195	/**
196	* Callback to overwrite WP computing of thumbnail measures
197	*/
198	public function aq_upscale( $default, $orig_w, $orig_h, $dest_w, $dest_h, $crop ) {
199	if ( ! $crop ) {
200	return null;
201	} // Let the WordPress default function handle this.
202
203	// Here is the point we allow to use larger image size than the original one.
204	$aspect_ratio = $orig_w / $orig_h;
205	$new_w = $dest_w;
206	$new_h = $dest_h;
207
208	if ( ! $new_w ) {
209	$new_w = intval( $new_h * $aspect_ratio );
210	}
211
212	if ( ! $new_h ) {
213	$new_h = intval( $new_w / $aspect_ratio );
214	}
215
216	$size_ratio = max( $new_w / $orig_w, $new_h / $orig_h );
217
218	$crop_w = round( $new_w / $size_ratio );
219	$crop_h = round( $new_h / $size_ratio );
220
221	$s_x = floor( ( $orig_w - $crop_w ) / 2 );
222	$s_y = floor( ( $orig_h - $crop_h ) / 2 );
223
224	return [ 0, 0, (int) $s_x, (int) $s_y, (int) $new_w, (int) $new_h, (int) $crop_w, (int) $crop_h ];
225	}
226	}
227