e2pdf / classes / helper / e2pdf-view.php

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

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