vikrestaurants / vikrestaurants.php

vikrestaurants.php in VikRestaurants Table Reservations and Take-Away 1.5.4, at vikrestaurants.php

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1	<?php
2	/*
3	Plugin Name: VikRestaurants
4	Plugin URI: https://vikwp.com/plugin/vikrestaurants
5	Description: A professional tool for managing your restaurant reservations and take-away orders.
6	Version: 1.5.4
7	Author: E4J s.r.l.
8	Author URI: https://vikwp.com
9	License: GPL2
10	License URI: https://www.gnu.org/licenses/gpl-2.0.html
11	Text Domain: vikrestaurants
12	Domain Path: /languages
13	*/
14
15	// No direct access
16	defined('ABSPATH') or die('No script kiddies please!');
17
18	// autoload dependencies
19	require_once dirname(__FILE__) . DIRECTORY_SEPARATOR . 'autoload.php';
20
21	// handle install/uninstall
22	register_activation_hook(__FILE__, array('VikRestaurantsInstaller', 'activate'));
23	register_deactivation_hook(__FILE__, array('VikRestaurantsInstaller', 'deactivate'));
24	register_uninstall_hook(__FILE__, array('VikRestaurantsInstaller', 'delete'));
25
26	// init Installer
27	add_action('init', array('VikRestaurantsInstaller', 'update'));
28	add_action('init', array('VikRestaurantsInstaller', 'onInit'));
29
30	/**
31	* Fires after all automatic updates have run.
32	* Completes the update scheduled in background.
33	*
34	* @param array $results The results of all attempted updates.
35	*
36	* @since 1.2
37	*/
38	add_action('automatic_updates_complete', array('VikRestaurantsInstaller', 'automaticUpdate'));
39
40	/**
41	* Filters whether to automatically update core, a plugin, a theme, or a language.
42	* Used to automatically turn off the update in case a PRO version expired.
43	*
44	* @param bool\|null $update Whether to update. The value of null is internally used
45	* to detect whether nothing has hooked into this filter.
46	* @param object $item The update offer.
47	*
48	* @since 1.2
49	*/
50	add_filter('auto_update_plugin', array('VikRestaurantsInstaller', 'useAutoUpdate'), 10, 2);
51
52	/**
53	* Fires at the end of the update message container in each
54	* row of the plugins list table.
55	*
56	* The dynamic portion of the hook name, `$file`, refers to the path
57	* of the plugin's primary file relative to the plugins directory.
58	*
59	* @link https://developer.wordpress.org/reference/hooks/in_plugin_update_message-file/
60	*
61	* @param array $data An array of plugin metadata.
62	* @param array $response An array of metadata about the available plugin update.
63	*
64	* @since 1.2
65	*/
66	add_action('in_plugin_update_message-vikrestaurants/vikrestaurants.php', array('VikRestaurantsInstaller', 'getUpdateMessage'), 10, 2);
67
68	/**
69	* Hook used to display a list of breaking changes after completing an update of the plugin.
70	* The message will be displayed only once within the dashboard of VikRestaurants.
71	*
72	* @since 1.2
73	*/
74	add_action('vikrestaurants_before_display_restaurant', array('VikRestaurantsInstaller', 'showBreakingChanges'));
75
76	/**
77	* Load plugin language only once all the plugins
78	* have been loaded, so that they are able to use
79	* the filters to extend the language functionalities.
80	*
81	* @since 1.4 Load language on init to prevent a WP warning.
82	*/
83	add_action('init', array('VikRestaurantsBuilder', 'loadLanguage'));
84
85	// init html helpers
86	VikRestaurantsBuilder::setupHtmlHelpers();
87	// init payment framework
88	VikRestaurantsBuilder::configurePaymentFramework();
89	// init sms framework
90	VikRestaurantsBuilder::configureSmsFramework();
91	// init mirroring functions for extendable files
92	VikRestaurantsBuilder::setupMirroring();
93	// setup hooks to extend the backup functionalities
94	VikRestaurantsBuilder::setupBackupSystem();
95	// setup hooks to be used for the configuration of the wizard
96	VikRestaurantsBuilder::setupWizard();
97	// fix scripts loading via AJAX
98	VikRestaurantsAssets::fixAjax();
99
100	// setup plugin overrides management
101	add_action('plugins_loaded', array('VikRestaurantsBuilder', 'setupOverridesManager'));
102
103	// setup lite system
104	add_action('plugins_loaded', array('VikRestaurantsLiteManager', 'setup'));
105
106	// add support for Help tabs
107	add_action('current_screen', array('VikRestaurantsScreen', 'help'));
108	// add support for screen options
109	add_action('current_screen', array('VikRestaurantsScreen', 'options'));
110	// always attempt to save screen options
111	add_filter('set-screen-option', array('VikRestaurantsScreen', 'saveOption'), 10, 3);
112	/**
113	* Due to WordPress 5.4.2 changes, we need to attach
114	* VikRestaurants to a dedicated hook in order to
115	* allow the update of the list limit.
116	*/
117	add_filter('set_screen_option_vikrestaurants_list_limit', array('VikRestaurantsScreen', 'saveOption'), 10, 3);
118
119	// init Session
120	add_action('init', array('JSessionHandler', 'start'), 1);
121	add_action('wp_logout', array('JSessionHandler', 'destroy'));
122
123	// filter page link to rewrite URI
124	add_action('plugins_loaded', function()
125	{
126	global $pagenow;
127
128	$app = JFactory::getApplication();
129	$input = $app->input;
130
131	// check if the URI contains option=com_vikrestaurants
132	if ($input->get('option') == 'com_vikrestaurants')
133	{
134	// make sure we are not contacting the AJAX and POST end-points
135	if (!wp_doing_ajax() && $pagenow != 'admin-post.php')
136	{
137	/**
138	* Include page in query string only if we are in the back-end,
139	* because WordPress 5.5 seems to break the page loading in case
140	* that argument has been included in query string.
141	*
142	* It is not needed to include this argument in the front-end
143	* as the page should lean on the reached shortcode only.
144	*/
145	if ($app->isAdmin())
146	{
147	// inject page=vikrestaurants in GET superglobal
148	$input->get->set('page', 'vikrestaurants');
149	}
150	}
151	else
152	{
153	// inject action=vikrestaurants in GET superglobal for AJAX and POST requests
154	$input->get->set('action', 'vikrestaurants');
155	}
156	}
157	else if ($input->get('page') == 'vikrestaurants' \|\| $input->get('action') == 'vikrestaurants')
158	{
159	// inject option=com_vikrestaurants in GET superglobal for internal component detection
160	$input->get->set('option', 'com_vikrestaurants');
161	}
162	});
163
164	// process the request and obtain the response
165	add_action('init', function()
166	{
167	$app = JFactory::getApplication();
168	$input = $app->input;
169
170	/**
171	* Added support to custom code blocks (snippets).
172	*
173	* @since 1.3
174	*/
175	VREFactory::getCodeHub()->import();
176
177	/**
178	* Hook used to fetch the site pre-processing flag.
179	* When this flag is enabled, the plugin will try to dispatch the
180	* site controller within the "init" action. This is made by
181	* fetching the shortcode assigned to the current URI.
182	*
183	* By disabling this flag, the site controller will be dispatched
184	* with the headers already sent.
185	*
186	* @param boolean $preprocess The default preprocess flag.
187	*
188	* @since 1.2
189	*/
190	$preprocess = apply_filters('vikrestaurants_site_preprocess', VIKRESTAURANTS_SITE_PREPROCESS);
191
192	// if we are in the front-end, try to parse the URL to inject
193	// option, view and args in the input request
194	if ($app->isSite() && $preprocess)
195	{
196	// get post ID from current URL
197	$id = url_to_postid(JUri::current());
198
199	if ($id)
200	{
201	// get shortcode admin model
202	$model = JModel::getInstance('vikrestaurants', 'shortcode', 'admin');
203	// get shortcode searching by post ID (false to avoid returning a new item)
204	$shortcode = $model->getItem(array('post_id' => $id), false);
205
206	if ($shortcode)
207	{
208	// build args array using the shortcode attributes
209	$args = (array) json_decode($shortcode->json, true);
210	$args['view'] = $shortcode->type;
211	$args['option'] = 'com_vikrestaurants';
212
213	// inject the shortcode args into the input request
214	foreach ($args as $k => $v)
215	{
216	// inject only if not defined
217	$input->def($k, $v);
218	}
219	}
220	}
221	}
222
223	/**
224	* Process VikRestaurants only if it has been requested via GET or POST.
225	*
226	* The pre-process should occur only if we are in the back-end or in case
227	* the related flag is turned on, otherwise the pre-processing technique
228	* would still take effect for those URLs that own "com_vikrestaurants"
229	* set in request (@since 1.2.3).
230	*/
231	if (($app->isAdmin() \|\| $preprocess) && ($input->get('option') == 'com_vikrestaurants' \|\| $input->get('page') == 'vikrestaurants'))
232	{
233	VikRestaurantsBody::process();
234	}
235	});
236
237	// handle AJAX requests for both logged and guest users
238	add_action('wp_ajax_vikrestaurants', 'handle_vikrestaurants_ajax');
239	add_action('wp_ajax_nopriv_vikrestaurants', 'handle_vikrestaurants_ajax');
240
241	/**
242	* Callback used to handle AJAX requests coming
243	* from both the front-end and back-end sections.
244	*
245	* @since 1.1
246	*/
247	function handle_vikrestaurants_ajax()
248	{
249	// process controller request
250	VikRestaurantsBody::getHtml();
251
252	// die to get a valid response
253	wp_die();
254	}
255
256	// setup admin menu
257	add_action('admin_menu', array('VikRestaurantsBuilder', 'setupAdminMenu'));
258
259	// register widgets
260	add_action('widgets_init', array('VikRestaurantsBuilder', 'setupWidgets'));
261
262	/**
263	* Load plugin language when registering the widgets as well.
264	* Since translations are now loaded at "init", they might not be available yet.
265	*
266	* @since 1.5
267	*/
268	add_action('widgets_init', ['VikRestaurantsBuilder', 'loadLanguage'], 1);
269
270	// handle shortcodes (SITE controller dispatcher)
271	add_shortcode('vikrestaurants', function($atts, $content = null)
272	{
273	$app = JFactory::getApplication();
274
275	/**
276	* Force the application client to "site" every time a shortcode is executed.
277	*
278	* @since 1.2.7
279	*/
280	$app->setClient('site');
281
282	// wrap attributes in a registry
283	$args = new JObject($atts);
284
285	// get the VIEW (empty if not set)
286	$view = $args->get('view', '');
287
288	if (!$view)
289	{
290	return $content;
291	}
292
293	// load the FORM of the view
294	JLoader::import('adapter.form.form');
295	$path = implode(DIRECTORY_SEPARATOR, array(VREBASE, 'views', $view, 'tmpl', 'default.xml'));
296	// raises an exception if the VIEW is not set
297	$form = JForm::getInstance($view, $path);
298
299	// get all the XML form fields
300	$fields = $form->getFields();
301
302	// filter the fields to get a list of allowed names
303	$fields = array_map(function($f)
304	{
305	return (string) $f->attributes()->name;
306	}, $fields);
307
308	// inject query vars
309	$input = $app->input;
310
311	// since we are going to render the controller manually,
312	// we need to push the option into $_REQUEST pool only
313	// whether it hasn't been added yet
314	$input->def('option', 'com_vikrestaurants');
315
316	// Inject shortcode vars only if they are not set
317	// in the request. This is used to allow the navigation
318	// between the pages.
319	$input->def('view', $view);
320
321	foreach ($fields as $k)
322	{
323	$input->def($k, $args->get($k));
324	}
325
326	/**
327	* When saving a shortcode block through Gutenberg,
328	* WordPress tries to reach the page to check what happens.
329	* The "takeawayconfirm" view of VikRestaurants, in case of
330	* no selected orders, immediately redirects the users to
331	* the "takeaway" page.
332	* This redirect breaks the request made by WordPress for the
333	* validation of the page, which follows the new location.
334	* The code below prevents the execution of the controller
335	* in case the URI matches the REST API end-point.
336	*
337	* @since 1.2.7 The rest_get_url_prefix(), which should be equals
338	* to /wp-json is available only on websites with pretty permalinks
339	* enabled. On sites without pretty permalinks, the route is instead
340	* added to the URL as the rest_route parameter.
341	*
342	* @since 1.3 Included additional condition to make sure we are not
343	* under the management page in the back-end.
344	*/
345	$rest_prefix = trailingslashit(rest_get_url_prefix());
346	$is_rest_api = strpos($input->server->getString('REQUEST_URI', ''), $rest_prefix) !== false
347	\|\| JUri::getInstance($input->server->getString('REQUEST_URI', ''))->hasVar('rest_route')
348	\|\| strpos($input->server->getString('REQUEST_URI', ''), '/wp-admin/') !== false;
349
350	if ($is_rest_api && in_array($input->get('view'), ['confirmres', 'takeawayconfirm']))
351	{
352	// return an empty string to prevent any redirects
353	return '';
354	}
355
356	// dispatch the controller
357	return VikRestaurantsBody::getHtml(true);
358	});
359
360	// the callback is fired before the VRE controller is dispatched
361	add_action('vikrestaurants_before_dispatch', function()
362	{
363	$app = JFactory::getApplication();
364	$user = Jfactory::getUser();
365
366	// initialize timezone handler
367	JDate::getDefaultTimezone();
368	date_default_timezone_set($app->get('offset', 'UTC'));
369
370	// check if the user is authorised to access the back-end (only if the client is 'admin')
371	if ($app->isAdmin() && !$user->authorise('core.manage', 'com_vikrestaurants'))
372	{
373	if ($user->guest)
374	{
375	// if the user is not logged, redirect to login page
376	$app->redirect('index.php');
377	exit;
378	}
379	else
380	{
381	// otherwise raise an exception
382	wp_die(
383	'<h1>' . JText::translate('FATAL_ERROR') . '</h1>' .
384	'<p>' . JText::translate('RESOURCE_AUTH_ERROR') . '</p>',
385	403
386	);
387	}
388	}
389
390	if ($app->isAdmin())
391	{
392	// require helper files
393	require_once JPath::clean(VREADMIN . '/helpers/vikrestaurants.php');
394
395	// remove expired credit cards
396	// check every 15 minutes only
397	VikRestaurants::removeExpiredCreditCards();
398	}
399
400	if (!wp_doing_ajax())
401	{
402	// load assets only if we are not doing an AJAX call
403	VikRestaurantsAssets::load();
404	}
405
406	/**
407	* Prevent the confirmation pages from performing an auto-redirect when running
408	* the Bricks plugin preview.
409	*
410	* @since 1.4
411	*/
412	if ($app->input->get('bricks') === 'run' && in_array($app->input->get('view'), ['confirmres', 'takeawayconfirm']))
413	{
414	$app->input->set('view', '');
415	}
416	});
417
418	// the callback is fired before displaying MANAGEMAP view
419	add_action('vikrestaurants_after_display_managemap', function()
420	{
421	// if we are not doing AJAX, include CSS to support full screen
422	if (!wp_doing_ajax())
423	{
424	JHtml::fetch(
425	'stylesheet',
426	VIKRESTAURANTS_CORE_MEDIA_URI . 'css/fullscreen.css',
427	array('version' => VIKRESTAURANTS_SOFTWARE_VERSION),
428	array('id' => 'vre-fullscreen-css')
429	);
430	}
431	});
432
433	// the callback is fired before displaying DASHBOARD view
434	add_action('vikrestaurants_before_display_restaurant', function()
435	{
436	$app = JFactory::getApplication();
437	$user = JFactory::getUser();
438
439	// make sure we are not doing AJAX, we are in the back-end and the user is an administrator
440	if (!wp_doing_ajax() && $app->isClient('administrator') && $user->authorise('core.admin', 'com_vikrestaurants'))
441	{
442	JToolbarHelper::shortcodes('com_vikrestaurants');
443	}
444	});
445
446	// instead using the default server timezone, try to use the one
447	// specified within the WordPress configuration
448	add_filter('vik_date_default_timezone', function($timezone)
449	{
450	return JFactory::getApplication()->get('offset', $timezone);
451	});
452
453	// the callback is fired once the VRE controller has been dispatched
454	add_action('vikrestaurants_after_dispatch', function()
455	{
456	// load assets after dispatching the controller to avoid
457	// including JS and CSS when an AJAX function exits or dies
458	// VikRestaurantsAssets::load();
459
460	// load javascript core
461	JHtml::fetch('behavior.core');
462
463	// reload Joomla options after registering the plugin scripts
464	JFactory::getDocument()->addScriptDeclaration('JoomlaCore.loadOptions();');
465
466	// restore standard timezone
467	date_default_timezone_set(JDate::getDefaultTimezone());
468
469	/**
470	* WordPress has some reserved values that shouldn't be used
471	* in query string or within the forms, otherwise they could
472	* be used to rewrite the URLs of the website.
473	*
474	* In example, by using the 'day' argument in query string,
475	* WordPress will start searching for POSTS that were created
476	* on the specified day (of the month), completely ignoring
477	* whether the current URL is used by a shortcode.
478	*
479	* For this reason, within the site section of VikRestaurants,
480	* we should unset all the reserved arguments from the superglobals
481	* once the plugin finished using them.
482	*
483	* @link https://codex.wordpress.org/WordPress_Query_Vars
484	*/
485
486	$app = JFactory::getApplication();
487
488	if ($app->isSite())
489	{
490	// define here the list of all the reserved arguments
491	// that are used by VikRestaurants
492	$reserved_args_for_date_query = array(
493	'year',
494	'day',
495	'hour',
496	);
497
498	foreach ($reserved_args_for_date_query as $arg)
499	{
500	// unset argument from REQUEST
501	$app->input->delete($arg);
502	// unset argument from GET
503	$app->input->get->delete($arg);
504	// unset argument from POST
505	$app->input->post->delete($arg);
506	}
507	}
508
509	/**
510	* When the headers have been sent or when the request is AJAX
511	* the assets (CSS and JS) are appended into the document after
512	* the response is dispatched by the controller.
513	* Obviously only in case the controller doesn't manually exit.
514	*/
515
516	if ($app->isAdmin())
517	{
518	/**
519	* Includes the manifest.json link within the head of the document for a better compliance
520	* with the Web Application requirements.
521	*
522	* We can attach the manifest after executing the plugin as, in case of redirect or exit,
523	* it doesn't make sense to include a link within the document.
524	*
525	* @since 1.3
526	*/
527	(new E4J\VikRestaurants\Document\WebApp(
528	new E4J\VikRestaurants\Document\WebApp\Apps\VikRestaurantsAdminManifest
529	))->load();
530	}
531	});
532
533	// End-point for front-end post actions.
534	// The end-point URL must be built as .../wp-admin/admin-post.php
535	// and requires $_POST['action'] == 'vikrestaurants' to be submitted through a form or GET.
536	add_action('admin_post_vikrestaurants', 'handle_vikrestaurants_endpoint'); // if the user is logged in
537	add_action('admin_post_nopriv_vikrestaurants', 'handle_vikrestaurants_endpoint'); // if the user in not logged in
538
539	// handle POST end-point
540	function handle_vikrestaurants_endpoint()
541	{
542	// get PLAIN response
543	echo VikRestaurantsBody::getResponse();
544	}
545
546	// Hook used to access the PAGE details when a user is
547	// creating or updating it. This is helpful to make a relation
548	// between the page and the injected shortcode.
549	add_action('save_post', function($post_id)
550	{
551	// get model to access all the existing shortcodes
552	$model = JModel::getInstance('vikrestaurants', 'shortcodes', 'admin');
553	$shortcodes = $model->all(array('id', 'shortcode', 'post_id'));
554
555	// get post data
556	$post = get_post($post_id);
557
558	// include private posts and future schedules
559	$accepted = array(
560	'publish',
561	'private',
562	'future',
563	);
564
565	/**
566	* Check if we are editing a child post as Gutenberg
567	* seems to use always the inherit status, which
568	* refers to a post parent.
569	*/
570	if (!in_array($post->post_status, $accepted) && !empty($post->post_parent) && $post->post_parent != $post_id)
571	{
572	// fallback to obtain parent post data
573	$post = get_post($post->post_parent);
574
575	// use new post ID
576	$post_id = $post->ID;
577	}
578
579	if (!in_array($post->post_status, $accepted))
580	{
581	// ignore drafts auto-save
582	return;
583	}
584
585	// get shortcode model
586	$shortcodeModel = JModel::getInstance('vikrestaurants', 'shortcode', 'admin');
587
588	/**
589	* Since we need unique post IDs, all the shortcodes
590	* that are assigned to the specified $post_id should
591	* be detached.
592	*/
593	foreach ($shortcodes as $data)
594	{
595	if ($data->post_id == $post_id)
596	{
597	// The post is already assigned to a shortcode.
598	// Unset it to avoid duplicated.
599	$data->post_id = 0;
600	$shortcodeModel->save($data);
601	}
602	}
603
604	// iterate the shortcodes
605	foreach ($shortcodes as $data)
606	{
607	// check if the content of the post contains the shortcode
608	if (strpos($post->post_content, html_entity_decode($data->shortcode)) !== false)
609	{
610	// inject the POST ID
611	$data->post_id = $post_id;
612
613	// update shortcode
614	$shortcodeModel->save($data);
615
616	// stop iterating
617	return;
618	}
619	}
620	});
621
622	// Hook used to unset temporarily the relationship
623	// between the trashed post and the shortcode.
624	add_action('trashed_post', function($post_id)
625	{
626	// get shortcode model
627	$model = JModel::getInstance('vikrestaurants', 'shortcode', 'admin');
628
629	// get the shortcode attached to the trashed post ID
630	$item = $model->getItem(array('post_id' => $post_id), false);
631
632	// if the item exists, temporarily detach the relationship
633	if ($item)
634	{
635	$item->post_id = 0;
636	$item->tmp_post_id = $post_id;
637
638	$model->save($item);
639	}
640	});
641
642	// Hook used to restore permanently the relationship
643	// between the untrashed post and the shortcode.
644	add_action('untrashed_post', function($post_id)
645	{
646	// get shortcode model
647	$model = JModel::getInstance('vikrestaurants', 'shortcode', 'admin');
648
649	// get the shortcode attached to the untrashed post ID
650	$item = $model->getItem(array('tmp_post_id' => $post_id), false);
651
652	// if the item exists, re-attach the relationship
653	if ($item)
654	{
655	$item->post_id = $post_id;
656	$item->tmp_post_id = 0;
657
658	$model->save($item);
659	}
660	});
661
662	// Hook used to temporarily detach the relationship
663	// between the deleted post and the shortcode.
664	add_action('deleted_post', function($post_id)
665	{
666	// get shortcode model
667	$model = JModel::getInstance('vikrestaurants', 'shortcode', 'admin');
668
669	// get the shortcode attached to the trashed post ID
670	$item = $model->getItem(array('tmp_post_id' => $post_id), false);
671
672	// If no item found, the "trash" feature is probably disabled.
673	// Try to take a look for a shortcode with an active relationship.
674	if (!$item)
675	{
676	$item = $model->getItem(array('post_id' => $post_id), false);
677	}
678
679	// if the item exists, permanently detach the relationship
680	if ($item)
681	{
682	$item->post_id = 0;
683	$item->tmp_post_id = 0;
684
685	$model->save($item);
686	}
687	});
688
689	if (JFactory::getApplication()->isAdmin() && !wp_doing_ajax())
690	{
691	VikRestaurantsLoader::import('system.mce');
692
693	// add new buttons
694	add_filter('mce_buttons', ['VikRestaurantsTinyMCE', 'addShortcodesButton']);
695
696	// load the button handlers
697	add_filter('mce_external_plugins', ['VikRestaurantsTinyMCE', 'registerShortcodesScript']);
698	}
699
700	/**
701	* Always load the Gutenberg shortcodes block to support the preview rendering.
702	*
703	* @since 1.3.2
704	*/
705	VikRestaurantsLoader::import('system.gutenberg');
706	add_action('init', ['VikRestaurantsGutenberg', 'registerShortcodesScript']);
707
708	/**
709	* Dispatch the uninstallation of VikRestaurants
710	* every time a new blog (multisite) is deleted.
711	*
712	* Fires after the site is deleted from the network (WP 4.8.0 or higher).
713	*
714	* @param integer $blog_id The site ID.
715	* @param boolean $drop True if site's tables should be dropped. Default is false.
716	*/
717	add_action('deleted_blog', function($blog_id, $drop)
718	{
719	VikRestaurantsInstaller::uninstall($drop);
720	}, 10, 2);
721
722	/**
723	* Suppress WP Date Query warnings when visiting the views of VikRestaurants as
724	* they might use reserved arguments in query string with wrong values, such
725	* as 'day' with UNIX timestamps.
726	*
727	* @param boolean $trigger Whether to trigger the error for _doing_it_wrong() calls. Default true.
728	* @param string $function The function that was called.
729	* @param string $message A message explaining what has been done incorrectly.
730	* @param string $version The version of WordPress where the message was added.
731	*/
732	add_filter('doing_it_wrong_trigger_error', function($show, $function, $message, $version)
733	{
734	$input = JFactory::getApplication()->input;
735
736	// suppress any WP_Date_Query error messages in VikRestaurants
737	if ($function == 'WP_Date_Query' && $input->get('option') == 'com_vikrestaurants')
738	{
739	// suppress the error
740	return false;
741	}
742
743	// keep the current value otherwise
744	return $show;
745	}, 10, 4);
746
747	/**
748	* Once the plugins have been loaded, evaluates to execute the
749	* scheduled cron jobs.
750	*
751	* Scheduling is processed in case a cron job is hitting wp-cron file
752	* or in case a user is visiting the website.
753	*
754	* @since 1.4
755	*/
756	add_action('plugins_loaded', array('VikRestaurantsCron', 'setup'), PHP_INT_MAX);
757
758	/**
759	* Filters the action links displayed for each plugin in the Plugins list table.
760	* Hook used to filter the "deactivation" link and ask a feedback every time that
761	* button is clicked.
762	*
763	* @param array $actions An array of plugin action links. By default this can include 'activate',
764	* 'deactivate', and 'delete'. With Multisite active this can also include
765	* 'network_active' and 'network_only' items.
766	* @param string $plugin_file Path to the plugin file relative to the plugins directory.
767	* @param array $plugin_data An array of plugin data. See `get_plugin_data()`.
768	* @param string $context The plugin context. By default this can include 'all', 'active', 'inactive',
769	* 'recently_activated', 'upgrade', 'mustuse', 'dropins', and 'search'.
770	*/
771	add_filter('plugin_action_links', array('VikRestaurantsFeedback', 'deactivate'), 10, 4);
772
773	/**
774	* Adjusts the timezone of the website before dispatching
775	* a widget as we are currently outside of the main plugin and
776	* the timezone have probably been restored to the default one.
777	*
778	* @param string $id The widget ID (path name).
779	* @param JObject &$params The widget configuration registry.
780	*/
781	add_action('vik_widget_before_dispatch_site', function($id, &$params)
782	{
783	// initialize timezone handler
784	JDate::getDefaultTimezone();
785	date_default_timezone_set(JFactory::getApplication()->get('offset', 'UTC'));
786	}, 10, 2);
787
788	/**
789	* Restores the timezone of the website after dispatching
790	* a widget in order to avoid strange behaviors with other plugins.
791	*
792	* @param string $id The widget ID (path name).
793	* @param string &$html The HTML of the widget to display.
794	*/
795	add_action('vik_widget_after_dispatch_site', function($id, &$html)
796	{
797	// restore standard timezone
798	date_default_timezone_set(JDate::getDefaultTimezone());
799	}, 10, 2);
800
801	/**
802	* Action triggered before loading the text domain.
803	* Loads the language handlers when needed from a
804	* different application client.
805	*
806	* @param string $domain The plugin text domain to look for.
807	* @param string $basePath The base path containing the languages.
808	* @param mixed $langtag An optional language tag to use.
809	*/
810	add_action('vik_plugin_before_load_language', function($domain, $basePath, $langtag)
811	{
812	if ($domain != 'vikrestaurants')
813	{
814	// do not go ahead
815	return;
816	}
817
818	$app = JFactory::getApplication();
819	$lang = JFactory::getLanguage();
820
821	$handler = VIKRESTAURANTS_LIBRARIES . DIRECTORY_SEPARATOR . 'language' . DIRECTORY_SEPARATOR;
822
823	// check if we are in the site client and the system
824	// needs to load the language used in the back-end
825	if ($app->isSite() && $basePath == JPATH_ADMINISTRATOR)
826	{
827	// load back-end language handler
828	$lang->attachHandler($handler . 'admin.php', $domain);
829	}
830	// check if we are in the admin client and the system
831	// needs to load the language used in the front-end
832	else if ($app->isAdmin() && $basePath == JPATH_SITE)
833	{
834	// load front-end language handler
835	$lang->attachHandler($handler . 'site.php', $domain);
836	}
837	}, 10, 3);
838
839	/**
840	* Added support for Loco Translate.
841	* In case some translations have been edited by using this plugin,
842	* we should look within the Loco Translate folder to check whether
843	* the requested translation is available.
844	*
845	* @param boolean $loaded True if the translation has been already loaded.
846	* @param string $domain The plugin text domain to load.
847	*
848	* @return boolean True if a new translation is loaded.
849	*/
850	add_filter('vik_plugin_load_language', function($loaded, $domain)
851	{
852	// proceed only in case the translation hasn't been loaded
853	// and Loco Translate plugin is installed
854	if (!$loaded && is_dir(WP_LANG_DIR . DIRECTORY_SEPARATOR . 'loco'))
855	{
856	// Build LOCO path.
857	// Since load_plugin_textdomain accepts only relative paths,
858	// we should go back to the /wp-contents/ folder first.
859	$loco = implode(DIRECTORY_SEPARATOR, array('..', 'languages', 'loco', 'plugins'));
860
861	// try to load the plugin translation from Loco folder
862	$loaded = load_plugin_textdomain($domain, false, $loco);
863	}
864
865	return $loaded;
866	}, 10, 2);
867
868	/**
869	* Downloads the RSS feeds after loading the dashboard of VikRestaurants.
870	*
871	* @since 1.1
872	*/
873	add_action('vikrestaurants_after_display_restaurant', ['VikRestaurantsRssFeeds', 'download']);
874
875	/**
876	* Trigger event to allow the plugins to include custom HTML within the view.
877	* It is possible to return an associative array to group the HTML strings
878	* under different fieldsets. Plain/html string will be always pushed within
879	* the "custom" fieldset instead.
880	*
881	* Displays the RSS configuration.
882	*
883	* @param mixed $forms The HTML to display.
884	* @param mixed $view The current view instance.
885	* @param object $setup An object holding the panel setup.
886	*
887	* @since 1.1
888	*/
889	add_filter('vikrestaurants_display_view_config_global', ['VikRestaurantsRssFeeds', 'config'], 10, 3);
890
891	/**
892	* Trigger event to allow the plugins to make something after saving
893	* a record in the database.
894	*
895	* @param mixed $dummy A dummy argument for BC.
896	* @param array $args The saved record.
897	* @param JTable $table The table instance.
898	*
899	* @since 1.1
900	*/
901	add_action('vikrestaurants_after_save_config', ['VikRestaurantsRssFeeds', 'save'], 10, 3);
902
903	/**
904	* Hook used to manipulate the RSS channels to which the plugin is subscribed.
905	*
906	* @param array $channels A list of RSS permalinks.
907	* @param bool $status True to return only the published channels.
908	*
909	* @since 1.1
910	*/
911	add_filter('vikrestaurants_fetch_rss_channels', ['VikRestaurantsRssFeeds', 'getChannels'], 10, 2);
912
913	/**
914	* Hook used to apply some stuff before returning the RSS reader.
915	*
916	* @param JRssReader &$rss The RSS reader handler.
917	*
918	* @since 1.1
919	*/
920	add_action('vikrestaurants_before_use_rss', ['VikRestaurantsRssFeeds', 'ready']);
921
922	/**
923	* Fixed the issue with wptexturize() function, which might convert special characters contained
924	* within <script> tags into an HTML-encoded version (e.g. "&" became "&").
925	*
926	* Short-circuit the usage of wptexturize for the whole front-end.
927	*
928	* @param bool $run Whether to short-circuit wptexturize().
929	*
930	* @since 1.4
931	*/
932	add_filter('run_wptexturize', function($run)
933	{
934	return is_admin() ? $run : false;
935	}, PHP_INT_MAX);
936
937	/**
938	* Filters the login page errors.
939	*
940	* Hijack the default redirect to the native WP login page.
941	*
942	* @since 1.5.2
943	*
944	* @param WP_Error $error WP Error object.
945	* @param string $redirectUrl Redirect destination URL.
946	*/
947	add_filter('wp_login_errors', function($error, $redirectUrl)
948	{
949	$app = JFactory::getApplication();
950
951	// make sure the login process started from VikRestaurants
952	if (strcasecmp($app->input->getString('referer', ''), 'vikrestaurants') \|\| !$redirectUrl)
953	{
954	// login started by someone else
955	return $error;
956	}
957
958	if (is_wp_error($error))
959	{
960	foreach ($error->get_error_messages() as $errorMessage)
961	{
962	// custom error set, enqueue the message for the user
963	$app->enqueueMessage($errorMessage, 'error');
964	}
965	}
966
967	// attach an argument in query string to easily identify an error
968	$redirectUrl = new JUri($redirectUrl);
969	$redirectUrl->setVar('login_failed', 1);
970
971	// hijack default behavior by redirecting the user to our custom page
972	$app->redirect((string) $redirectUrl);
973	$app->close();
974	}, 10, 2);
975