e2pdf / classes / helper / e2pdf-pdf.php

e2pdf-pdf.php in E2Pdf – Export Pdf Tool for WordPress 1.32.49, at classes/helper/e2pdf-pdf.php

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1	<?php
2
3	/**
4	* E2Pdf Pdf Helper
5	* @copyright Copyright 2017 https://e2pdf.com
6	* @license GPLv3
7	* @version 1
8	* @link https://e2pdf.com
9	* @since 0.00.01
10	*/
11	if (!defined('ABSPATH')) {
12	die('Access denied.');
13	}
14
15	class Helper_E2pdf_Pdf {
16
17	private $helper;
18
19	public function __construct() {
20	$this->helper = Helper_E2pdf_Helper::instance();
21	}
22
23	/**
24	* Get Base64 Encoded Pdf
25	* @param string $value - Pdf path
26	* @return mixed - Base64 encoded Pdf OR FALSE
27	*/
28	public function get_pdf($value, $extension = false) {
29	$source = false;
30	$protected = false;
31	if ($value) {
32	$value = trim($value);
33	$site_url = site_url('/');
34	$https = str_replace('http://', 'https://', $site_url);
35	$http = str_replace('https://', 'http://', $site_url);
36	if (!get_option('e2pdf_images_remote_request', '0')) {
37	if (0 === strpos($value, $https)) {
38	$tmp_value = ABSPATH . substr($value, strlen($https));
39	if (@file_exists($tmp_value)) {
40	$value = $tmp_value;
41	}
42	} elseif (0 === strpos($value, $http)) {
43	$tmp_value = ABSPATH . substr($value, strlen($http));
44	if (@file_exists($tmp_value)) {
45	$value = $tmp_value;
46	}
47	}
48	}
49	if (!$source) {
50	if ((0 === strpos($value, ABSPATH) \|\| 0 === strpos($value, '/')) && @file_exists($value) && $this->get_extension($value)) {
51	if ($extension == 'formidable' && class_exists('FrmProFileField') && !@is_readable($value)) {
52	FrmProFileField::chmod($value, apply_filters('frm_protected_file_readonly_permission', 0400));
53	if (@!is_readable($value)) {
54	@chmod($value, apply_filters('frm_protected_file_readonly_permission', 0400));
55	}
56	if (@is_readable($value)) {
57	$protected = true;
58	}
59	}
60	$contents = @file_get_contents($value);
61	if ($contents) {
62	$source = base64_encode($contents);
63	}
64	if ($protected) {
65	FrmProFileField::chmod($value, 0200);
66	}
67	} elseif (@file_exists(ABSPATH . $value) && $this->get_extension(ABSPATH . $value)) {
68	if ($extension == 'formidable' && class_exists('FrmProFileField') && !@is_readable(ABSPATH . $value)) {
69	FrmProFileField::chmod(ABSPATH . $value, apply_filters('frm_protected_file_readonly_permission', 0400));
70	if (@!is_readable(ABSPATH . $value)) {
71	@chmod(ABSPATH . $value, apply_filters('frm_protected_file_readonly_permission', 0400));
72	}
73	if (@is_readable(ABSPATH . $value)) {
74	$protected = true;
75	}
76	}
77	$contents = @file_get_contents(ABSPATH . $value);
78	if ($contents) {
79	$source = base64_encode($contents);
80	}
81	if ($protected) {
82	FrmProFileField::chmod(ABSPATH . $value, 0200);
83	}
84	} elseif ($tmp_file = base64_decode($value, true)) {
85	if ($this->get_extension($tmp_file)) {
86	$source = $value;
87	}
88	} elseif ($body = $this->get_by_url($value)) {
89	$source = base64_encode($body);
90	}
91	}
92	}
93	return $source;
94	}
95
96	/**
97	* Get pdf by Url
98	* @param string $url - Url to pdf
99	* @return array();
100	*/
101	public function get_by_url($url) {
102	$response = wp_remote_get(
103	$url,
104	array(
105	'timeout' => get_option('e2pdf_images_timeout', '30'),
106	'sslverify' => false,
107	)
108	);
109	if (wp_remote_retrieve_response_code($response) === 200) {
110	return wp_remote_retrieve_body($response);
111	} else {
112	return '';
113	}
114	}
115
116	public function get_allowed_extensions() {
117	return array(
118	'application/pdf' => 'pdf'
119	);
120	}
121
122	public function get_extension($value = false) {
123
124	$value = trim($value);
125	if (!$value) {
126	return false;
127	}
128
129	$extensions = $this->get_allowed_extensions();
130	$extension = false;
131	$mime = false;
132
133	if (@file_exists($value)) {
134	$file_extension = strtolower(pathinfo($value, PATHINFO_EXTENSION));
135	if (in_array($file_extension, $extensions)) {
136	return $file_extension;
137	} elseif (function_exists('finfo_open') && function_exists('finfo_file')) {
138	$f = finfo_open();
139	$mime = @finfo_file($f, $value, FILEINFO_MIME_TYPE);
140	}
141	} else {
142	$file_extension = strtolower(pathinfo($value, PATHINFO_EXTENSION));
143	if (in_array($file_extension, $extensions)) {
144	return $file_extension;
145	} elseif (function_exists('finfo_open') && function_exists('finfo_buffer')) {
146	$f = finfo_open();
147	$mime = finfo_buffer($f, $value, FILEINFO_MIME_TYPE);
148	}
149	}
150
151	if ($mime && isset($extensions[$mime])) {
152	$extension = $extensions[$mime];
153	}
154	return $extension;
155	}
156	}
157