e2pdf / classes / helper / e2pdf-convert.php

e2pdf-convert.php in E2Pdf – Export Pdf Tool for WordPress 1.32.23, at classes/helper/e2pdf-convert.php

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1	<?php
2
3	/**
4	* E2pdf Convert Helper
5	*
6	* @copyright Copyright 2017 https://e2pdf.com
7	* @license GPLv3
8	* @version 1
9	* @link https://e2pdf.com
10	* @since 1.01.02
11	*/
12	if (!defined('ABSPATH')) {
13	die('Access denied.');
14	}
15
16	class Helper_E2pdf_Convert {
17
18	private $helper;
19
20	public function __construct() {
21	$this->helper = Helper_E2pdf_Helper::instance();
22	}
23
24	public function to_hex_color($hex = '') {
25	$color = [
26	0x00, 0x00, 0x00,
27	];
28	$hex = ltrim($hex, '#');
29	if (strlen($hex) === 3) {
30	$color = [
31	hexdec(substr($hex, 0, 1)),
32	hexdec(substr($hex, 1, 1)),
33	hexdec(substr($hex, 2, 1)),
34	];
35	} elseif (strlen($hex) === 6) {
36	$color = [
37	hexdec(substr($hex, 0, 2)),
38	hexdec(substr($hex, 2, 2)),
39	hexdec(substr($hex, 4, 2)),
40	];
41	}
42	return $color;
43	}
44
45	/**
46	* Convert from bytes to Human View
47	* @param int $size - Size in Bytes
48	* @return string - Converted size
49	*/
50	public function from_bytes($size) {
51	$unit = ['B', 'KB', 'MB', 'GB', 'TB', 'PB'];
52	return @round($size / pow(1024, ($i = floor(log($size, 1024)))), 2) . '' . $unit[$i];
53	}
54
55	public function to_bytes($size) {
56	$unit = preg_replace('/[^bkmgtpezy]/i', '', $size);
57	$size = preg_replace('/[^0-9\.]/', '', $size);
58	if ($unit) {
59	return round($size * pow(1024, stripos('bkmgtpezy', $unit[0])));
60	} else {
61	return round($size);
62	}
63	}
64
65	public function to_file_dir($file_dir = '') {
66	if ($file_dir) {
67	$file_dir = str_replace(['\\', './'], ['/', '.'], $file_dir);
68	}
69	return $file_dir;
70	}
71
72	public function to_file_name($file_name = '') {
73	if ($file_name) {
74	$search = [
75	'/',
76	'\\',
77	'"',
78	'[',
79	']',
80	''',
81	'"',
82	'[',
83	']',
84	'&',
85	';',
86	];
87	$replace = [
88	'',
89	'_',
90	'',
91	'[',
92	']',
93	'\'',
94	'',
95	'[',
96	']',
97	'&',
98	'',
99	];
100	$file_name = str_replace($search, $replace, $file_name);
101	}
102	return $file_name;
103	}
104
105	/*
106	stritr - case insensitive version of strtr
107	Author: Alexander Peev
108	Posted in PHP.NET
109	*/
110
111	public function stritr($haystack, $needle) {
112	if (is_array($needle)) {
113	$pos1 = 0;
114	$result = $haystack;
115	while (count($needle) > 0) {
116	$positions = [];
117	foreach ($needle as $from => $to) {
118	if (($pos2 = stripos($result, $from, $pos1)) === FALSE) {
119	unset($needle[$from]);
120	} else {
121	$positions[$from] = $pos2;
122	}
123	}
124	if (count($needle) <= 0) {
125	break;
126	}
127
128	$winner = min($positions);
129	$key = array_search($winner, $positions);
130	$result = (substr($result, 0, $winner) . $needle[$key] . substr($result, ($winner + strlen($key))));
131	$pos1 = ($winner + strlen($needle[$key]));
132	}
133	return $result;
134	} else {
135	return $haystack;
136	}
137	}
138
139	public function path_to_url($path = '') {
140	$url = str_replace(
141	wp_normalize_path(untrailingslashit(ABSPATH)), site_url(), wp_normalize_path($path)
142	);
143	return esc_url_raw($url);
144	}
145
146	public function unserialize($value) {
147	/* Compatibility fix with Docket Cache */
148	if (is_array($value)) {
149	return $value;
150	}
151	if (version_compare(PHP_VERSION, '7.0.0', '<')) {
152	return @unserialize($value);
153	} else {
154	return @unserialize($value, ['allowed_classes' => false]);
155	}
156	}
157
158	public function is_content_key($content_key = false, $value = '') {
159	$response = '';
160	if ($content_key) {
161	$shortcode_tags = [
162	'e2pdf-content',
163	];
164	preg_match_all('@\[([^<>&/\[\]\x00-\x20=]++)@', $value, $matches);
165	$tagnames = array_intersect($shortcode_tags, $matches[1]);
166	if (!empty($tagnames)) {
167	preg_match_all('/' . $this->helper->load('shortcode')->get_shortcode_regex($tagnames) . '/', $value, $shortcodes);
168	foreach ($shortcodes[0] as $key => $shortcode_value) {
169	$shortcode = $this->helper->load('shortcode')->get_shortcode($shortcodes, $key);
170	$atts = shortcode_parse_atts($shortcode[3]);
171	if (isset($atts['key']) && $atts['key'] == $content_key) {
172	$response = $shortcode[5];
173	}
174	}
175	}
176	}
177	return $response;
178	}
179
180	public function is_string_array($value) {
181	if (!is_array($value)) {
182	$value = !empty($value) ? (array) $value : [];
183	}
184	return $value;
185	}
186
187	public function is_unserialized_array($value) {
188	if (!is_array($value)) {
189	if (is_serialized($value)) {
190	$value = $this->unserialize($value);
191	}
192	}
193	return is_array($value) ? $value : [];
194	}
195
196	public function load_html($source, $dom, $form = false) {
197	libxml_use_internal_errors(true);
198	$options = defined('LIBXML_HTML_NOIMPLIED') && defined('LIBXML_HTML_NODEFDTD') ? LIBXML_HTML_NOIMPLIED \| LIBXML_HTML_NODEFDTD : 0;
199	if ($form && $options) {
200	$source = '<html>' . $source . '</html>';
201	}
202	if (function_exists('mb_encode_numericentity')) {
203	$html = $dom->loadHTML($this->html_entities($source), $options);
204	} else {
205	$html = $dom->loadHTML('<?xml encoding="UTF-8">' . $source, $options);
206	}
207	libxml_clear_errors();
208	return $html;
209	}
210
211	public function html_entities($source) {
212	if (!function_exists('mb_encode_numericentity')) {
213	return $source;
214	}
215	$map = [
216	0x80, 0xFFFF, 0, 0xFFFF,
217	];
218	try {
219	return mb_encode_numericentity($source, $map, 'UTF-8');
220	} catch (Exception $e) {
221	if (function_exists('mb_detect_encoding') && function_exists('mb_detect_order') && function_exists('iconv')) {
222	$charset = mb_detect_encoding($source, mb_detect_order(), true);
223	$source = iconv($charset, 'UTF-8//IGNORE', $source);
224	return mb_encode_numericentity($source, $map, 'UTF-8');
225	}
226	return $source;
227	}
228	}
229
230	public function html_entities_decode($source) {
231	return html_entity_decode($source, ENT_QUOTES \| ENT_HTML5, 'UTF-8');
232	}
233	}
234