e2pdf / classes / helper / e2pdf-view.php

e2pdf-view.php in E2Pdf – Export Pdf Tool for WordPress 1.32.15, at classes/helper/e2pdf-view.php

496 lines 16.8 KB

Raw Download Zip

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 = new Model_E2pdf_Notification();
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	$this->notification->add_notification($type, $text);
190	}
191
192	/**
193	* Get notifications
194	* @return array - List of notifications
195	*/
196	public function get_notifications() {
197	$notifications = $this->notification->get_notifications();
198	return $notifications;
199	}
200
201	/**
202	* Force Json response
203	* @param array $data - Array of data
204	* @return json
205	*/
206	public function json_response($data = array()) {
207	@header('Content-Type: application/json; charset=' . get_option('blog_charset'));
208	if (function_exists('wp_json_encode')) {
209	echo wp_json_encode($data, JSON_FORCE_OBJECT);
210	} else {
211	echo json_encode($data, JSON_FORCE_OBJECT);
212	}
213	wp_die();
214	}
215
216	public function json_response_ajax($data = array(), $status = 200) {
217	if (ob_get_length() > 0) {
218	while (@ob_end_clean());
219	}
220	status_header($status);
221	header('X-Robots-Tag: noindex, nofollow');
222	@header('Content-Type: application/json; charset=' . get_option('blog_charset'));
223	if (function_exists('wp_json_encode')) {
224	echo wp_json_encode($data, JSON_FORCE_OBJECT);
225	} else {
226	echo json_encode($data, JSON_FORCE_OBJECT);
227	}
228	exit;
229	}
230
231	/**
232	* Force close browser tab from PHP
233	*/
234	public function close_tab_response() {
235	echo "
236	<script>
237	self.close();
238	</script>
239	";
240	}
241
242	/**
243	* Force Download response
244	* @param string $format - Format of file
245	* @param string $file - Base64 Encoded File
246	* @param string $name - Name of file when download
247	* @param string $disposition - Disposition of file inline\|attachment
248	* @return string
249	*/
250	public function download_response($format, $file, $name = '', $disposition = '', $fpassthru = false, $preview = false) {
251
252	$content_length = true;
253	/**
254	* External Links – nofollow, noopener & new window compatibility fix filter
255	* https://wordpress.org/plugins/wp-external-links/
256	*/
257	add_filter('wpel_apply_settings', '__return_false');
258
259	/**
260	* Compatibility fix with TranslatePress
261	* https://wordpress.org/plugins/translatepress-multilingual/
262	*/
263	add_filter('trp_stop_translating_page', '__return_true');
264
265	if (ob_get_length() > 0) {
266	while (@ob_end_clean());
267	}
268
269	/**
270	* PHP 8.0.17 & PHP 8.1.4 compatibility with zlib enabled
271	*/
272	header_remove("Content-Encoding");
273
274	/**
275	* W3 Total Cache + OVH compatibility fix
276	* https://wordpress.org/plugins/w3-total-cache/
277	*/
278	if (function_exists('w3tc_config')) {
279	$w3tc_config = w3tc_config();
280	if ($w3tc_config->get_boolean('browsercache.enabled') && $w3tc_config->get_boolean('browsercache.html.compression') && function_exists('php_uname') && false !== stripos(@php_uname(), '.ovh.net')) {
281	$content_length = false;
282	}
283	}
284
285	/**
286	* WP Rocket + OVH compatibility fix
287	* https://wp-rocket.me/
288	*/
289	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')) {
290	$content_length = false;
291	}
292
293	if (!$name) {
294	$name = time();
295	}
296	$name = rawurlencode($this->helper->load('convert')->to_file_name($name));
297
298	status_header(200);
299	header('Content-Transfer-Encoding: binary');
300	header('X-Robots-Tag: noindex, nofollow');
301	switch ($format) {
302	case 'pdf':
303	if ($content_length) {
304	header('Content-Length: ' . strlen($file));
305	}
306	if (!$disposition) {
307	$disposition = 'inline';
308	}
309	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
310	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.pdf");
311	} else {
312	header("Content-Disposition: {$disposition}; filename=\"{$name}.pdf\"");
313	}
314	header("Content-Type: application/pdf");
315	if ($preview && $disposition == 'inline' && isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Chrome') !== false) {
316	header('Cache-Control: private');
317	}
318	break;
319	case 'jpg':
320	if ($content_length) {
321	header('Content-Length: ' . strlen($file));
322	}
323	if (!$disposition) {
324	$disposition = 'attachment';
325	}
326	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
327	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.jpg");
328	} else {
329	header("Content-Disposition: {$disposition}; filename=\"{$name}.jpg\"");
330	}
331	header('Content-Type: image/jpeg');
332	if ($preview && $disposition == 'inline' && isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Chrome') !== false) {
333	header('Cache-Control: private');
334	}
335	break;
336	case 'zip':
337	if ($content_length) {
338	if ($fpassthru) {
339	if (ini_get('zlib.output_compression')) {
340	ini_set('zlib.output_compression', 'Off');
341	}
342	header('Content-Length: ' . filesize(trim($file)));
343	} else {
344	header('Content-Length: ' . strlen($file));
345	}
346	}
347	if (!$disposition) {
348	$disposition = 'attachment';
349	}
350	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
351	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.zip");
352	} else {
353	header("Content-Disposition: {$disposition}; filename=\"{$name}.zip\"");
354	}
355	header('Content-Type: application/zip');
356	break;
357	case 'xml':
358	if (!$disposition) {
359	$disposition = 'attachment';
360	}
361	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
362	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.xml");
363	} else {
364	header("Content-Disposition: {$disposition}; filename=\"{$name}.xml\"");
365	}
366	header('Content-Type: text/xml');
367	break;
368	case 'txt':
369	if (!$disposition) {
370	$disposition = 'attachment';
371	}
372	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
373	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.txt");
374	} else {
375	header("Content-Disposition: {$disposition}; filename=\"{$name}.txt\"");
376	}
377	header('Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document');
378	break;
379	case 'doc':
380	if (!$disposition) {
381	$disposition = 'attachment';
382	}
383	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
384	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.txt");
385	} else {
386	header("Content-Disposition: {$disposition}; filename=\"{$name}.txt\"");
387	}
388	header('Content-Type: application/msword');
389	break;
390	case 'docx':
391	if (!$disposition) {
392	$disposition = 'attachment';
393	}
394	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
395	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.txt");
396	} else {
397	header("Content-Disposition: {$disposition}; filename=\"{$name}.txt\"");
398	}
399	header('Content-Type: text/html');
400	break;
401	case 'php':
402	if (!$disposition) {
403	$disposition = 'attachment';
404	}
405	if (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== false) {
406	header("Content-Disposition: {$disposition}; filename*=UTF-8''{$name}.php");
407	} else {
408	header("Content-Disposition: {$disposition}; filename=\"{$name}.php\"");
409	}
410	header('Content-Type: text/html');
411	break;
412	default:
413	break;
414	}
415
416	if ($fpassthru) {
417	$handle = @fopen($file, 'rb');
418	while (!feof($handle)) {
419	echo fread($handle, 8192);
420	}
421	fclose($handle);
422	} else {
423	echo $file;
424	}
425	}
426
427	/**
428	* Check if exists in array
429	* @param string $value - Array Key
430	* @param mixed $compare
431	* @param array $data - Array of data
432	* @return bool
433	*/
434	public function exist($value, $compare = false, $data = array()) {
435	if (isset($data[$value]) && $value === $compare) {
436	return true;
437	} else {
438	return false;
439	}
440	}
441
442	/**
443	* Force Error
444	* @param string $code - Error Code
445	*/
446	public function handle_404() {
447	global $wp_query;
448	$wp_query->set_404();
449	status_header(404);
450	nocache_headers();
451	if (is_admin()) {
452	wp_die('404');
453	}
454	}
455
456	/**
457	* Set var available to view template
458	* @param string $key - Key of value
459	* @param mixed $value - Value
460	*/
461	public function view($key, $value) {
462	$this->view->$key = $value;
463	}
464
465	/**
466	* Check if Array/Object Empty
467	* @param mixed $data - Object/Array to check
468	* @return bool
469	*/
470	public function is_empty($data) {
471	if (is_object($data) \|\| is_array($data)) {
472
473	if (is_object($data)) {
474	$data = (array) $data;
475	}
476	if (count($data) > 0) {
477	return false;
478	}
479	}
480
481	return true;
482	}
483
484	public function message($key) {
485	$message = '';
486	switch ($key) {
487	case 'wp_verify_nonce_error':
488	$message = 'E2Pdf Bad Request';
489	break;
490	default:
491	break;
492	}
493	return $message;
494	}
495	}
496