e2pdf / classes / helper / e2pdf-view.php

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

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1	<?php
2
3	/**
4	* E2Pdf View Helper
5	*
6	* @copyright Copyright 2017 https://e2pdf.com
7	* @license GPLv3
8	* @version 1
9	* @link https://e2pdf.com
10	* @since 0.00.01
11	*/
12	if (!defined('ABSPATH')) {
13	die('Access denied.');
14	}
15
16	class Helper_E2pdf_View {
17
18	protected static $instance = null;
19	private $view_dir;
20	public $uri;
21	public $page;
22	public $controller;
23	public $helper;
24	public $notification;
25	public $tpl;
26	public $tpl_page;
27	public $view = null;
28	public $tpl_args = null;
29	public $get = null;
30	public $post = null;
31	public $files = null;
32
33	public static function instance() {
34	if (!isset(self::$instance)) {
35	self::$instance = new self();
36	}
37	return self::$instance;
38	}
39
40	public function __construct() {
41	$this->view = new stdClass();
42	$this->uri = home_url(add_query_arg(null, null));
43	$this->get = new Helper_E2pdf_Get($this->uri);
44	$this->post = new Helper_E2pdf_Post();
45	$this->files = new Helper_E2pdf_Files();
46	$this->page = $this->get->get_page();
47	$this->helper = Helper_E2pdf_Helper::instance();
48	$this->notification = Model_E2pdf_Notification::instance();
49	$this->view_dir = $this->helper->get('plugin_dir') . 'classes/view/';
50	}
51
52	/**
53	* Get Tpl Value
54	* @param string $key - Tpl key
55	* @return mixed - Tpl value
56	*/
57	public function render($type, $element, $args = array()) {
58	$this->tpl_args = new Helper_E2pdf_Tplargs($args);
59	$this->tpl = $this->view_dir . $type . '/' . $element . '.php';
60	if (file_exists($this->tpl)) {
61	include($this->tpl);
62	}
63	}
64
65	/**
66	* Get Tpl Value
67	* @param string $key - Tpl key
68	* @return mixed - Tpl value
69	*/
70	public function render_metabox($post, $metabox) {
71	$this->render('metaboxes', $metabox['args']['tpl']);
72	}
73
74	/**
75	* Get Tpl Value
76	* @param string $key - Tpl key
77	* @return mixed - Tpl value
78	*/
79	public function render_page() {
80	$this->tpl_page = $this->view_dir . 'page-' . $this->page . '.php';
81	$controller = $this->page_to_controller($this->page);
82	if (class_exists($controller)) {
83	$this->controller = new $controller();
84	if ($this->get->get('action')) {
85	$method = $this->get->get('action') . '_action';
86	} else {
87	$method = 'index_action';
88	}
89	if (method_exists($this->controller, $method)) {
90	$this->controller->$method();
91	$this->view = $this->controller->view;
92	} else {
93	$this->handle_404();
94	}
95	}
96
97	if (file_exists($this->tpl_page)) {
98	include($this->tpl_page);
99	}
100	}
101
102	public function render_frontend_page() {
103	if ($this->page == 'e2pdf-download' \|\| get_query_var('e2pdf')) {
104	$this->tpl_page = $this->view_dir . '/frontend/page-e2pdf-download.php';
105	$controller = $this->page_to_controller('e2pdf-download', true);
106	if (class_exists($controller)) {
107	$this->controller = new $controller();
108	if ($this->get->get('action')) {
109	$method = $this->get->get('action') . '_action';
110	} else {
111	$method = 'index_action';
112	}
113	if (method_exists($this->controller, $method)) {
114	$this->controller->$method();
115	} else {
116	$this->handle_404();
117	}
118	}
119
120	if (file_exists($this->tpl_page)) {
121	include($this->tpl_page);
122	}
123	} elseif ($this->page == 'e2pdf-activation') {
124	if (get_transient('e2pdf_activation_key')) {
125	$activation_key = get_transient('e2pdf_activation_key');
126	if ($this->get->get('key') == $activation_key) {
127	if (ob_get_length() > 0) {
128	while (@ob_end_clean());
129	}
130	header('Content-Type: text/plain');
131	echo $activation_key;
132	die();
133	}
134	}
135	}
136	}
137
138	public function rpc() {
139	if (ob_get_length() > 0) {
140	while (@ob_end_clean());
141	}
142	$rpc = new Model_E2pdf_Rpc($this->helper->load('server')->get('REQUEST_URI'));
143	$controller = $this->page_to_controller('e2pdf-rpc-' . $rpc->get('version'), true);
144	if (class_exists($controller)) {
145	$this->controller = new $controller();
146	$method = $rpc->get('method');
147	if ($method && method_exists($this->controller, $method)) {
148	$this->controller->$method($rpc);
149	}
150	}
151	}
152
153	/**
154	* Get Tpl Value
155	* @param string $key - Tpl key
156	* @return mixed - Tpl value
157	*/
158	public function page_to_controller($page, $frontend = false) {
159	$controller = array(
160	'Controller'
161	);
162	if ($frontend) {
163	$controller[] = 'Frontend';
164	}
165	$controller = array_merge($controller, explode('-', $page));
166	$controller = array_map('ucfirst', $controller);
167	return implode("_", $controller);
168	}
169
170	/**
171	* Redirect to page
172	* @param string $location - Full url where to redirect
173	*/
174	public function redirect($location) {
175	if (headers_sent()) {
176	die("<script>window.location='{$location}';</script>");
177	} else {
178	wp_redirect($location);
179	exit();
180	}
181	}
182
183	/**
184	* Add notification
185	* @param string $type - Type of notification error\|update
186	* @param string $text - Text of notification
187	*/
188	public function add_notification($type, $text) {
189	return $this->notification->add_notification($type, $text);
190	}
191
192	/**
193	* Get notifications
194	* @return array - List of notifications
195	*/
196	public function get_notifications($notification_id = '') {
197	return $this->notification->get_notifications($notification_id);
198	}
199
200	/**
201	* Force Json response
202	* @param array $data - Array of data
203	* @return json
204	*/
205	public function json_response($data = array()) {
206	@header('Content-Type: application/json; charset=' . get_option('blog_charset'));
207	if (function_exists('wp_json_encode')) {
208	echo wp_json_encode($data, JSON_FORCE_OBJECT);
209	} else {
210	echo json_encode($data, JSON_FORCE_OBJECT);
211	}
212	wp_die();
213	}
214
215	public function json_response_ajax($data = array(), $status = 200) {
216	if (ob_get_length() > 0) {
217	while (@ob_end_clean());
218	}
219	status_header($status);
220	header('X-Robots-Tag: noindex, nofollow');
221	@header('Content-Type: application/json; charset=' . get_option('blog_charset'));
222	if (function_exists('wp_json_encode')) {
223	echo wp_json_encode($data, JSON_FORCE_OBJECT);
224	} else {
225	echo json_encode($data, JSON_FORCE_OBJECT);
226	}
227	exit;
228	}
229
230	/**
231	* Force close browser tab from PHP
232	*/
233	public function close_tab_response() {
234	echo "
235	<script>
236	self.close();
237	</script>
238	";
239	}
240
241	/**
242	* Force Download response
243	* @param string $format - Format of file
244	* @param string $file - Base64 Encoded File
245	* @param string $name - Name of file when download
246	* @param string $disposition - Disposition of file inline\|attachment
247	* @return string
248	*/
249	public function download_response($format, $file, $name = '', $disposition = '', $fpassthru = false, $preview = false) {
250
251	$content_length = true;
252	/**
253	* External Links – nofollow, noopener & new window compatibility fix filter
254	* https://wordpress.org/plugins/wp-external-links/
255	*/
256	add_filter('wpel_apply_settings', '__return_false');
257
258	/**
259	* Compatibility fix with TranslatePress
260	* https://wordpress.org/plugins/translatepress-multilingual/
261	*/
262	add_filter('trp_stop_translating_page', '__return_true');
263
264	if (ob_get_length() > 0) {
265	while (@ob_end_clean());
266	}
267
268	/**
269	* PHP 8.0.17 & PHP 8.1.4 compatibility with zlib enabled
270	*/
271	header_remove("Content-Encoding");
272
273	/**
274	* W3 Total Cache + OVH compatibility fix
275	* https://wordpress.org/plugins/w3-total-cache/
276	*/
277	if (function_exists('w3tc_config')) {
278	$w3tc_config = w3tc_config();
279	if ($w3tc_config->get_boolean('browsercache.enabled') && $w3tc_config->get_boolean('browsercache.html.compression') && function_exists('php_uname') && false !== stripos(@php_uname(), '.ovh.net')) {
280	$content_length = false;
281	}
282	}
283
284	/**
285	* WP Rocket + OVH compatibility fix
286	* https://wp-rocket.me/
287	*/
288	if (function_exists('rocket_generate_config_file') && !function_exists('WP_Rocket\Helpers\htaccess\remove_gzip\flush_wp_rocket') && function_exists('php_uname') && false !== stripos(@php_uname(), '.ovh.net')) {
289	$content_length = false;
290	}
291
292	if (!$name) {
293	$name = time();
294	}
295	$name = rawurlencode($this->helper->load('convert')->to_file_name($name));
296
297	status_header(200);
298	header('Content-Transfer-Encoding: binary');
299	header('X-Robots-Tag: noindex, nofollow');
300	switch ($format) {
301	case 'pdf':
302	if ($content_length) {
303	header('Content-Length: ' . strlen($file));
304	}
305	if (!$disposition) {
306	$disposition = 'inline';
307	}
308	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
309	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.pdf");
310	} else {
311	header("Content-Disposition: {$disposition}; filename=\"{$name}.pdf\"");
312	}
313	header("Content-Type: application/pdf");
314	if ($preview && $disposition == 'inline' && isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Chrome') !== false) {
315	header('Cache-Control: private');
316	}
317	break;
318	case 'jpg':
319	if ($content_length) {
320	header('Content-Length: ' . strlen($file));
321	}
322	if (!$disposition) {
323	$disposition = 'attachment';
324	}
325	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
326	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.jpg");
327	} else {
328	header("Content-Disposition: {$disposition}; filename=\"{$name}.jpg\"");
329	}
330	header('Content-Type: image/jpeg');
331	if ($preview && $disposition == 'inline' && isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Chrome') !== false) {
332	header('Cache-Control: private');
333	}
334	break;
335	case 'zip':
336	if ($content_length) {
337	if ($fpassthru) {
338	if (ini_get('zlib.output_compression')) {
339	ini_set('zlib.output_compression', 'Off');
340	}
341	header('Content-Length: ' . filesize(trim($file)));
342	} else {
343	header('Content-Length: ' . strlen($file));
344	}
345	}
346	if (!$disposition) {
347	$disposition = 'attachment';
348	}
349	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
350	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.zip");
351	} else {
352	header("Content-Disposition: {$disposition}; filename=\"{$name}.zip\"");
353	}
354	header('Content-Type: application/zip');
355	break;
356	case 'xml':
357	if (!$disposition) {
358	$disposition = 'attachment';
359	}
360	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
361	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.xml");
362	} else {
363	header("Content-Disposition: {$disposition}; filename=\"{$name}.xml\"");
364	}
365	header('Content-Type: text/xml');
366	break;
367	case 'txt':
368	if (!$disposition) {
369	$disposition = 'attachment';
370	}
371	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
372	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.txt");
373	} else {
374	header("Content-Disposition: {$disposition}; filename=\"{$name}.txt\"");
375	}
376	header('Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document');
377	break;
378	case 'doc':
379	if (!$disposition) {
380	$disposition = 'attachment';
381	}
382	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
383	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.txt");
384	} else {
385	header("Content-Disposition: {$disposition}; filename=\"{$name}.txt\"");
386	}
387	header('Content-Type: application/msword');
388	break;
389	case 'docx':
390	if (!$disposition) {
391	$disposition = 'attachment';
392	}
393	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
394	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.txt");
395	} else {
396	header("Content-Disposition: {$disposition}; filename=\"{$name}.txt\"");
397	}
398	header('Content-Type: text/html');
399	break;
400	case 'php':
401	if (!$disposition) {
402	$disposition = 'attachment';
403	}
404	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
405	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.php");
406	} else {
407	header("Content-Disposition: {$disposition}; filename=\"{$name}.php\"");
408	}
409	header('Content-Type: text/html');
410	break;
411	default:
412	break;
413	}
414
415	if ($fpassthru) {
416	$handle = @fopen($file, 'rb');
417	while (!feof($handle)) {
418	echo fread($handle, 8192);
419	}
420	fclose($handle);
421	} else {
422	echo $file;
423	}
424	}
425
426	/**
427	* Check if exists in array
428	* @param string $value - Array Key
429	* @param mixed $compare
430	* @param array $data - Array of data
431	* @return bool
432	*/
433	public function exist($value, $compare = false, $data = array()) {
434	if (isset($data[$value]) && $value === $compare) {
435	return true;
436	} else {
437	return false;
438	}
439	}
440
441	/**
442	* Force Error
443	* @param string $code - Error Code
444	*/
445	public function handle_404() {
446	global $wp_query;
447	$wp_query->set_404();
448	status_header(404);
449	nocache_headers();
450	if (is_admin()) {
451	wp_die('404');
452	}
453	}
454
455	/**
456	* Set var available to view template
457	* @param string $key - Key of value
458	* @param mixed $value - Value
459	*/
460	public function view($key, $value) {
461	$this->view->$key = $value;
462	}
463
464	/**
465	* Check if Array/Object Empty
466	* @param mixed $data - Object/Array to check
467	* @return bool
468	*/
469	public function is_empty($data) {
470	if (is_object($data) \|\| is_array($data)) {
471
472	if (is_object($data)) {
473	$data = (array) $data;
474	}
475	if (count($data) > 0) {
476	return false;
477	}
478	}
479
480	return true;
481	}
482
483	public function message($key) {
484	$message = '';
485	switch ($key) {
486	case 'wp_verify_nonce_error':
487	$message = 'E2Pdf Bad Request';
488	break;
489	default:
490	break;
491	}
492	return $message;
493	}
494	}
495