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1<?php
2/**
3 * Kreativ Pro.
4 *
5 * Plugin installation and activation for WordPress themes.
6 *
7 * @package Kreativ
8 * @author  Thomas Griffin, Gary Jones, Juliette Reinders Folmer, ThemeSquare
9 * @license GPL-2.0+
10 * @copyright Copyright (c) 2011, Thomas Griffin
11 * @link    http://tgmpluginactivation.com/
12 * @link    http://themesquare.com/themes/kreativ/
13 */
14
15/*
16	Copyright 2011 Thomas Griffin (thomasgriffinmedia.com)
17
18	This program is free software; you can redistribute it and/or modify
19	it under the terms of the GNU General Public License, version 2, as
20	published by the Free Software Foundation.
21
22	This program is distributed in the hope that it will be useful,
23	but WITHOUT ANY WARRANTY; without even the implied warranty of
24	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
25	GNU General Public License for more details.
26
27	You should have received a copy of the GNU General Public License
28	along with this program; if not, write to the Free Software
29	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
30*/
31
32if ( ! class_exists( 'TGM_Plugin_Activation' ) ) {
33
34	/**
35	 * Automatic plugin installation and activation library.
36	 *
37	 * Creates a way to automatically install and activate plugins from within themes.
38	 * The plugins can be either bundled, downloaded from the WordPress
39	 * Plugin Repository or downloaded from another external source.
40	 *
41	 * @since 1.0.0
42	 *
43	 * @package TGM-Plugin-Activation
44	 * @author  Thomas Griffin
45	 * @author  Gary Jones
46	 */
47	class TGM_Plugin_Activation {
48		/**
49		 * TGMPA version number.
50		 *
51		 * @since 2.5.0
52		 *
53		 * @const string Version number.
54		 */
55		const TGMPA_VERSION = '2.6.1';
56
57		/**
58		 * Regular expression to test if a URL is a WP plugin repo URL.
59		 *
60		 * @const string Regex.
61		 *
62		 * @since 2.5.0
63		 */
64		const WP_REPO_REGEX = '|^http[s]?://wordpress\.org/(?:extend/)?plugins/|';
65
66		/**
67		 * Arbitrary regular expression to test if a string starts with a URL.
68		 *
69		 * @const string Regex.
70		 *
71		 * @since 2.5.0
72		 */
73		const IS_URL_REGEX = '|^http[s]?://|';
74
75		/**
76		 * Holds a copy of itself, so it can be referenced by the class name.
77		 *
78		 * @since 1.0.0
79		 *
80		 * @var TGM_Plugin_Activation
81		 */
82		public static $instance;
83
84		/**
85		 * Holds arrays of plugin details.
86		 *
87		 * @since 1.0.0
88		 * @since 2.5.0 the array has the plugin slug as an associative key.
89		 *
90		 * @var array
91		 */
92		public $plugins = array();
93
94		/**
95		 * Holds arrays of plugin names to use to sort the plugins array.
96		 *
97		 * @since 2.5.0
98		 *
99		 * @var array
100		 */
101		protected $sort_order = array();
102
103		/**
104		 * Whether any plugins have the 'force_activation' setting set to true.
105		 *
106		 * @since 2.5.0
107		 *
108		 * @var bool
109		 */
110		protected $has_forced_activation = false;
111
112		/**
113		 * Whether any plugins have the 'force_deactivation' setting set to true.
114		 *
115		 * @since 2.5.0
116		 *
117		 * @var bool
118		 */
119		protected $has_forced_deactivation = false;
120
121		/**
122		 * Name of the unique ID to hash notices.
123		 *
124		 * @since 2.4.0
125		 *
126		 * @var string
127		 */
128		public $id = 'tgmpa';
129
130		/**
131		 * Name of the query-string argument for the admin page.
132		 *
133		 * @since 1.0.0
134		 *
135		 * @var string
136		 */
137		protected $menu = 'tgmpa-install-plugins';
138
139		/**
140		 * Parent menu file slug.
141		 *
142		 * @since 2.5.0
143		 *
144		 * @var string
145		 */
146		public $parent_slug = 'themes.php';
147
148		/**
149		 * Capability needed to view the plugin installation menu item.
150		 *
151		 * @since 2.5.0
152		 *
153		 * @var string
154		 */
155		public $capability = 'edit_theme_options';
156
157		/**
158		 * Default absolute path to folder containing bundled plugin zip files.
159		 *
160		 * @since 2.0.0
161		 *
162		 * @var string Absolute path prefix to zip file location for bundled plugins. Default is empty string.
163		 */
164		public $default_path = '';
165
166		/**
167		 * Flag to show admin notices or not.
168		 *
169		 * @since 2.1.0
170		 *
171		 * @var boolean
172		 */
173		public $has_notices = true;
174
175		/**
176		 * Flag to determine if the user can dismiss the notice nag.
177		 *
178		 * @since 2.4.0
179		 *
180		 * @var boolean
181		 */
182		public $dismissable = true;
183
184		/**
185		 * Message to be output above nag notice if dismissable is false.
186		 *
187		 * @since 2.4.0
188		 *
189		 * @var string
190		 */
191		public $dismiss_msg = '';
192
193		/**
194		 * Flag to set automatic activation of plugins. Off by default.
195		 *
196		 * @since 2.2.0
197		 *
198		 * @var boolean
199		 */
200		public $is_automatic = false;
201
202		/**
203		 * Optional message to display before the plugins table.
204		 *
205		 * @since 2.2.0
206		 *
207		 * @var string Message filtered by wp_kses_post(). Default is empty string.
208		 */
209		public $message = '';
210
211		/**
212		 * Holds configurable array of strings.
213		 *
214		 * Default values are added in the constructor.
215		 *
216		 * @since 2.0.0
217		 *
218		 * @var array
219		 */
220		public $strings = array();
221
222		/**
223		 * Holds the version of WordPress.
224		 *
225		 * @since 2.4.0
226		 *
227		 * @var int
228		 */
229		public $wp_version;
230
231		/**
232		 * Holds the hook name for the admin page.
233		 *
234		 * @since 2.5.0
235		 *
236		 * @var string
237		 */
238		public $page_hook;
239
240		/**
241		 * Adds a reference of this object to $instance, populates default strings,
242		 * does the tgmpa_init action hook, and hooks in the interactions to init.
243		 *
244		 * {@internal This method should be `protected`, but as too many TGMPA implementations
245		 * haven't upgraded beyond v2.3.6 yet, this gives backward compatibility issues.
246		 * Reverted back to public for the time being.}}
247		 *
248		 * @since 1.0.0
249		 *
250		 * @see TGM_Plugin_Activation::init()
251		 */
252		public function __construct() {
253			// Set the current WordPress version.
254			$this->wp_version = $GLOBALS['wp_version'];
255
256			// Announce that the class is ready, and pass the object (for advanced use).
257			do_action_ref_array( 'tgmpa_init', array( $this ) );
258
259			/*
260			 * Load our text domain and allow for overloading the fall-back file.
261			 *
262			 * {@internal IMPORTANT! If this code changes, review the regex in the custom TGMPA
263			 * generator on the website.}}
264			 */
265			add_action( 'init', array( $this, 'load_textdomain' ), 5 );
266			add_filter( 'load_textdomain_mofile', array( $this, 'overload_textdomain_mofile' ), 10, 2 );
267
268			// When the rest of WP has loaded, kick-start the rest of the class.
269			add_action( 'init', array( $this, 'init' ) );
270		}
271
272		/**
273		 * Magic method to (not) set protected properties from outside of this class.
274		 *
275		 * {@internal hackedihack... There is a serious bug in v2.3.2 - 2.3.6  where the `menu` property
276		 * is being assigned rather than tested in a conditional, effectively rendering it useless.
277		 * This 'hack' prevents this from happening.}}
278		 *
279		 * @see https://github.com/TGMPA/TGM-Plugin-Activation/blob/2.3.6/tgm-plugin-activation/class-tgm-plugin-activation.php#L1593
280		 *
281		 * @since 2.5.2
282		 *
283		 * @param string $name  Name of an inaccessible property.
284		 * @param mixed  $value Value to assign to the property.
285		 * @return void  Silently fail to set the property when this is tried from outside of this class context.
286		 *               (Inside this class context, the __set() method if not used as there is direct access.)
287		 */
288		public function __set( $name, $value ) {
289			return;
290		}
291
292		/**
293		 * Magic method to get the value of a protected property outside of this class context.
294		 *
295		 * @since 2.5.2
296		 *
297		 * @param string $name Name of an inaccessible property.
298		 * @return mixed The property value.
299		 */
300		public function __get( $name ) {
301			return $this->{$name};
302		}
303
304		/**
305		 * Initialise the interactions between this class and WordPress.
306		 *
307		 * Hooks in three new methods for the class: admin_menu, notices and styles.
308		 *
309		 * @since 2.0.0
310		 *
311		 * @see TGM_Plugin_Activation::admin_menu()
312		 * @see TGM_Plugin_Activation::notices()
313		 * @see TGM_Plugin_Activation::styles()
314		 */
315		public function init() {
316			/**
317			 * By default TGMPA only loads on the WP back-end and not in an Ajax call. Using this filter
318			 * you can overrule that behaviour.
319			 *
320			 * @since 2.5.0
321			 *
322			 * @param bool $load Whether or not TGMPA should load.
323			 *                   Defaults to the return of `is_admin() && ! defined( 'DOING_AJAX' )`.
324			 */
325			if ( true !== apply_filters( 'tgmpa_load', ( is_admin() && ! defined( 'DOING_AJAX' ) ) ) ) {
326				return;
327			}
328
329			// Load class strings.
330			$this->strings = array(
331				'page_title'                      => __( 'Install Required Plugins', 'kreativ-pro' ),
332				'menu_title'                      => __( 'Install Plugins', 'kreativ-pro' ),
333				/* translators: %s: plugin name. */
334				'installing'                      => __( 'Installing Plugin: %s', 'kreativ-pro' ),
335				/* translators: %s: plugin name. */
336				'updating'                        => __( 'Updating Plugin: %s', 'kreativ-pro' ),
337				'oops'                            => __( 'Something went wrong with the plugin API.', 'kreativ-pro' ),
338				'notice_can_install_required'     => _n_noop(
339					/* translators: 1: plugin name(s). */
340					'This theme requires the following plugin: %1$s.',
341					'This theme requires the following plugins: %1$s.',
342					'kreativ-pro'
343				),
344				'notice_can_install_recommended'  => _n_noop(
345					/* translators: 1: plugin name(s). */
346					'This theme recommends the following plugin: %1$s.',
347					'This theme recommends the following plugins: %1$s.',
348					'kreativ-pro'
349				),
350				'notice_ask_to_update'            => _n_noop(
351					/* translators: 1: plugin name(s). */
352					'The following plugin needs to be updated to its latest version to ensure maximum compatibility with this theme: %1$s.',
353					'The following plugins need to be updated to their latest version to ensure maximum compatibility with this theme: %1$s.',
354					'kreativ-pro'
355				),
356				'notice_ask_to_update_maybe'      => _n_noop(
357					/* translators: 1: plugin name(s). */
358					'There is an update available for: %1$s.',
359					'There are updates available for the following plugins: %1$s.',
360					'kreativ-pro'
361				),
362				'notice_can_activate_required'    => _n_noop(
363					/* translators: 1: plugin name(s). */
364					'The following required plugin is currently inactive: %1$s.',
365					'The following required plugins are currently inactive: %1$s.',
366					'kreativ-pro'
367				),
368				'notice_can_activate_recommended' => _n_noop(
369					/* translators: 1: plugin name(s). */
370					'The following recommended plugin is currently inactive: %1$s.',
371					'The following recommended plugins are currently inactive: %1$s.',
372					'kreativ-pro'
373				),
374				'install_link'                    => _n_noop(
375					'Begin installing plugin',
376					'Begin installing plugins',
377					'kreativ-pro'
378				),
379				'update_link'                     => _n_noop(
380					'Begin updating plugin',
381					'Begin updating plugins',
382					'kreativ-pro'
383				),
384				'activate_link'                   => _n_noop(
385					'Begin activating plugin',
386					'Begin activating plugins',
387					'kreativ-pro'
388				),
389				'return'                          => __( 'Return to Required Plugins Installer', 'kreativ-pro' ),
390				'dashboard'                       => __( 'Return to the Dashboard', 'kreativ-pro' ),
391				'plugin_activated'                => __( 'Plugin activated successfully.', 'kreativ-pro' ),
392				'activated_successfully'          => __( 'The following plugin was activated successfully:', 'kreativ-pro' ),
393				/* translators: 1: plugin name. */
394				'plugin_already_active'           => __( 'No action taken. Plugin %1$s was already active.', 'kreativ-pro' ),
395				/* translators: 1: plugin name. */
396				'plugin_needs_higher_version'     => __( 'Plugin not activated. A higher version of %s is needed for this theme. Please update the plugin.', 'kreativ-pro' ),
397				/* translators: 1: dashboard link. */
398				'complete'                        => __( 'All plugins installed and activated successfully. %1$s', 'kreativ-pro' ),
399				'dismiss'                         => __( 'Dismiss this notice', 'kreativ-pro' ),
400				'notice_cannot_install_activate'  => __( 'There are one or more required or recommended plugins to install, update or activate.', 'kreativ-pro' ),
401				'contact_admin'                   => __( 'Please contact the administrator of this site for help.', 'kreativ-pro' ),
402			);
403
404			do_action( 'tgmpa_register' );
405
406			/* After this point, the plugins should be registered and the configuration set. */
407
408			// Proceed only if we have plugins to handle.
409			if ( empty( $this->plugins ) || ! is_array( $this->plugins ) ) {
410				return;
411			}
412
413			// Set up the menu and notices if we still have outstanding actions.
414			if ( true !== $this->is_tgmpa_complete() ) {
415				// Sort the plugins.
416				array_multisort( $this->sort_order, SORT_ASC, $this->plugins );
417
418				add_action( 'admin_menu', array( $this, 'admin_menu' ) );
419				add_action( 'admin_head', array( $this, 'dismiss' ) );
420
421				// Prevent the normal links from showing underneath a single install/update page.
422				add_filter( 'install_plugin_complete_actions', array( $this, 'actions' ) );
423				add_filter( 'update_plugin_complete_actions', array( $this, 'actions' ) );
424
425				if ( $this->has_notices ) {
426					add_action( 'admin_notices', array( $this, 'notices' ) );
427					add_action( 'admin_init', array( $this, 'admin_init' ), 1 );
428					add_action( 'admin_enqueue_scripts', array( $this, 'thickbox' ) );
429				}
430			}
431
432			// If needed, filter plugin action links.
433			add_action( 'load-plugins.php', array( $this, 'add_plugin_action_link_filters' ), 1 );
434
435			// Make sure things get reset on switch theme.
436			add_action( 'switch_theme', array( $this, 'flush_plugins_cache' ) );
437
438			if ( $this->has_notices ) {
439				add_action( 'switch_theme', array( $this, 'update_dismiss' ) );
440			}
441
442			// Setup the force activation hook.
443			if ( true === $this->has_forced_activation ) {
444				add_action( 'admin_init', array( $this, 'force_activation' ) );
445			}
446
447			// Setup the force deactivation hook.
448			if ( true === $this->has_forced_deactivation ) {
449				add_action( 'switch_theme', array( $this, 'force_deactivation' ) );
450			}
451		}
452
453		/**
454		 * Load translations.
455		 *
456		 * @since 2.6.0
457		 *
458		 * (@internal Uses `load_theme_textdomain()` rather than `load_plugin_textdomain()` to
459		 * get round the different ways of handling the path and deprecated notices being thrown
460		 * and such. For plugins, the actual file name will be corrected by a filter.}}
461		 *
462		 * {@internal IMPORTANT! If this function changes, review the regex in the custom TGMPA
463		 * generator on the website.}}
464		 */
465		public function load_textdomain() {
466			if ( is_textdomain_loaded( 'kreativ-pro' ) ) {
467				return;
468			}
469
470			if ( false !== strpos( __FILE__, WP_PLUGIN_DIR ) || false !== strpos( __FILE__, WPMU_PLUGIN_DIR ) ) {
471				// Plugin, we'll need to adjust the file name.
472				add_action( 'load_textdomain_mofile', array( $this, 'correct_plugin_mofile' ), 10, 2 );
473				load_theme_textdomain( 'tgmpa', dirname( __FILE__ ) . '/languages' );
474				remove_action( 'load_textdomain_mofile', array( $this, 'correct_plugin_mofile' ), 10 );
475			} else {
476				load_theme_textdomain( 'tgmpa', dirname( __FILE__ ) . '/languages' );
477			}
478		}
479
480		/**
481		 * Correct the .mo file name for (must-use) plugins.
482		 *
483		 * Themese use `/path/{locale}.mo` while plugins use `/path/{text-domain}-{locale}.mo`.
484		 *
485		 * {@internal IMPORTANT! If this function changes, review the regex in the custom TGMPA
486		 * generator on the website.}}
487		 *
488		 * @since 2.6.0
489		 *
490		 * @param string $mofile Full path to the target mofile.
491		 * @param string $domain The domain for which a language file is being loaded.
492		 * @return string $mofile
493		 */
494		public function correct_plugin_mofile( $mofile, $domain ) {
495			// Exit early if not our domain (just in case).
496			if ( 'tgmpa' !== $domain ) {
497				return $mofile;
498			}
499			return preg_replace( '`/([a-z]{2}_[A-Z]{2}.mo)$`', '/tgmpa-$1', $mofile );
500		}
501
502		/**
503		 * Potentially overload the fall-back translation file for the current language.
504		 *
505		 * WP, by default since WP 3.7, will load a local translation first and if none
506		 * can be found, will try and find a translation in the /wp-content/languages/ directory.
507		 * As this library is theme/plugin agnostic, translation files for TGMPA can exist both
508		 * in the WP_LANG_DIR /plugins/ subdirectory as well as in the /themes/ subdirectory.
509		 *
510		 * This method makes sure both directories are checked.
511		 *
512		 * {@internal IMPORTANT! If this function changes, review the regex in the custom TGMPA
513		 * generator on the website.}}
514		 *
515		 * @since 2.6.0
516		 *
517		 * @param string $mofile Full path to the target mofile.
518		 * @param string $domain The domain for which a language file is being loaded.
519		 * @return string $mofile
520		 */
521		public function overload_textdomain_mofile( $mofile, $domain ) {
522			// Exit early if not our domain, not a WP_LANG_DIR load or if the file exists and is readable.
523			if ( 'tgmpa' !== $domain || false === strpos( $mofile, WP_LANG_DIR ) || @is_readable( $mofile ) ) {
524				return $mofile;
525			}
526
527			// Current fallback file is not valid, let's try the alternative option.
528			if ( false !== strpos( $mofile, '/themes/' ) ) {
529				return str_replace( '/themes/', '/plugins/', $mofile );
530			} elseif ( false !== strpos( $mofile, '/plugins/' ) ) {
531				return str_replace( '/plugins/', '/themes/', $mofile );
532			} else {
533				return $mofile;
534			}
535		}
536
537		/**
538		 * Hook in plugin action link filters for the WP native plugins page.
539		 *
540		 * - Prevent activation of plugins which don't meet the minimum version requirements.
541		 * - Prevent deactivation of force-activated plugins.
542		 * - Add update notice if update available.
543		 *
544		 * @since 2.5.0
545		 */
546		public function add_plugin_action_link_filters() {
547			foreach ( $this->plugins as $slug => $plugin ) {
548				if ( false === $this->can_plugin_activate( $slug ) ) {
549					add_filter( 'plugin_action_links_' . $plugin['file_path'], array( $this, 'filter_plugin_action_links_activate' ), 20 );
550				}
551
552				if ( true === $plugin['force_activation'] ) {
553					add_filter( 'plugin_action_links_' . $plugin['file_path'], array( $this, 'filter_plugin_action_links_deactivate' ), 20 );
554				}
555
556				if ( false !== $this->does_plugin_require_update( $slug ) ) {
557					add_filter( 'plugin_action_links_' . $plugin['file_path'], array( $this, 'filter_plugin_action_links_update' ), 20 );
558				}
559			}
560		}
561
562		/**
563		 * Remove the 'Activate' link on the WP native plugins page if the plugin does not meet the
564		 * minimum version requirements.
565		 *
566		 * @since 2.5.0
567		 *
568		 * @param array $actions Action links.
569		 * @return array
570		 */
571		public function filter_plugin_action_links_activate( $actions ) {
572			unset( $actions['activate'] );
573
574			return $actions;
575		}
576
577		/**
578		 * Remove the 'Deactivate' link on the WP native plugins page if the plugin has been set to force activate.
579		 *
580		 * @since 2.5.0
581		 *
582		 * @param array $actions Action links.
583		 * @return array
584		 */
585		public function filter_plugin_action_links_deactivate( $actions ) {
586			unset( $actions['deactivate'] );
587
588			return $actions;
589		}
590
591		/**
592		 * Add a 'Requires update' link on the WP native plugins page if the plugin does not meet the
593		 * minimum version requirements.
594		 *
595		 * @since 2.5.0
596		 *
597		 * @param array $actions Action links.
598		 * @return array
599		 */
600		public function filter_plugin_action_links_update( $actions ) {
601			$actions['update'] = sprintf(
602				'<a href="%1$s" title="%2$s" class="edit">%3$s</a>',
603				esc_url( $this->get_tgmpa_status_url( 'update' ) ),
604				esc_attr__( 'This plugin needs to be updated to be compatible with your theme.', 'kreativ-pro' ),
605				esc_html__( 'Update Required', 'kreativ-pro' )
606			);
607
608			return $actions;
609		}
610
611		/**
612		 * Handles calls to show plugin information via links in the notices.
613		 *
614		 * We get the links in the admin notices to point to the TGMPA page, rather
615		 * than the typical plugin-install.php file, so we can prepare everything
616		 * beforehand.
617		 *
618		 * WP does not make it easy to show the plugin information in the thickbox -
619		 * here we have to require a file that includes a function that does the
620		 * main work of displaying it, enqueue some styles, set up some globals and
621		 * finally call that function before exiting.
622		 *
623		 * Down right easy once you know how...
624		 *
625		 * Returns early if not the TGMPA page.
626		 *
627		 * @since 2.1.0
628		 *
629		 * @global string $tab Used as iframe div class names, helps with styling
630		 * @global string $body_id Used as the iframe body ID, helps with styling
631		 *
632		 * @return null Returns early if not the TGMPA page.
633		 */
634		public function admin_init() {
635			if ( ! $this->is_tgmpa_page() ) {
636				return;
637			}
638
639			if ( isset( $_REQUEST['tab'] ) && 'plugin-information' === $_REQUEST['tab'] ) {
640				// Needed for install_plugin_information().
641				require_once ABSPATH . 'wp-admin/includes/plugin-install.php';
642
643				wp_enqueue_style( 'plugin-install' );
644
645				global $tab, $body_id;
646				$body_id = 'plugin-information';
647				// @codingStandardsIgnoreStart
648				$tab     = 'plugin-information';
649				// @codingStandardsIgnoreEnd
650
651				install_plugin_information();
652
653				exit;
654			}
655		}
656
657		/**
658		 * Enqueue thickbox scripts/styles for plugin info.
659		 *
660		 * Thickbox is not automatically included on all admin pages, so we must
661		 * manually enqueue it for those pages.
662		 *
663		 * Thickbox is only loaded if the user has not dismissed the admin
664		 * notice or if there are any plugins left to install and activate.
665		 *
666		 * @since 2.1.0
667		 */
668		public function thickbox() {
669			if ( ! get_user_meta( get_current_user_id(), 'tgmpa_dismissed_notice_' . $this->id, true ) ) {
670				add_thickbox();
671			}
672		}
673
674		/**
675		 * Adds submenu page if there are plugin actions to take.
676		 *
677		 * This method adds the submenu page letting users know that a required
678		 * plugin needs to be installed.
679		 *
680		 * This page disappears once the plugin has been installed and activated.
681		 *
682		 * @since 1.0.0
683		 *
684		 * @see TGM_Plugin_Activation::init()
685		 * @see TGM_Plugin_Activation::install_plugins_page()
686		 *
687		 * @return null Return early if user lacks capability to install a plugin.
688		 */
689		public function admin_menu() {
690			// Make sure privileges are correct to see the page.
691			if ( ! current_user_can( 'install_plugins' ) ) {
692				return;
693			}
694
695			$args = apply_filters(
696				'tgmpa_admin_menu_args',
697				array(
698					'parent_slug' => $this->parent_slug,                     // Parent Menu slug.
699					'page_title'  => $this->strings['page_title'],           // Page title.
700					'menu_title'  => $this->strings['menu_title'],           // Menu title.
701					'capability'  => $this->capability,                      // Capability.
702					'menu_slug'   => $this->menu,                            // Menu slug.
703					'function'    => array( $this, 'install_plugins_page' ), // Callback.
704				)
705			);
706
707			$this->add_admin_menu( $args );
708		}
709
710		/**
711		 * Add the menu item.
712		 *
713		 * {@internal IMPORTANT! If this function changes, review the regex in the custom TGMPA
714		 * generator on the website.}}
715		 *
716		 * @since 2.5.0
717		 *
718		 * @param array $args Menu item configuration.
719		 */
720		protected function add_admin_menu( array $args ) {
721			if ( has_filter( 'tgmpa_admin_menu_use_add_theme_page' ) ) {
722				_deprecated_function( 'The "tgmpa_admin_menu_use_add_theme_page" filter', '2.5.0', esc_html__( 'Set the parent_slug config variable instead.', 'kreativ-pro' ) );
723			}
724
725			if ( 'themes.php' === $this->parent_slug ) {
726				$this->page_hook = call_user_func( 'add_theme_page', $args['page_title'], $args['menu_title'], $args['capability'], $args['menu_slug'], $args['function'] );
727			} else {
728				$this->page_hook = call_user_func( 'add_submenu_page', $args['parent_slug'], $args['page_title'], $args['menu_title'], $args['capability'], $args['menu_slug'], $args['function'] );
729			}
730		}
731
732		/**
733		 * Echoes plugin installation form.
734		 *
735		 * This method is the callback for the admin_menu method function.
736		 * This displays the admin page and form area where the user can select to install and activate the plugin.
737		 * Aborts early if we're processing a plugin installation action.
738		 *
739		 * @since 1.0.0
740		 *
741		 * @return null Aborts early if we're processing a plugin installation action.
742		 */
743		public function install_plugins_page() {
744			// Store new instance of plugin table in object.
745			$plugin_table = new TGMPA_List_Table;
746
747			// Return early if processing a plugin installation action.
748			if ( ( ( 'tgmpa-bulk-install' === $plugin_table->current_action() || 'tgmpa-bulk-update' === $plugin_table->current_action() ) && $plugin_table->process_bulk_actions() ) || $this->do_plugin_install() ) {
749				return;
750			}
751
752			// Force refresh of available plugin information so we'll know about manual updates/deletes.
753			wp_clean_plugins_cache( false );
754
755			?>
756			<div class="tgmpa wrap">
757				<h1><?php echo esc_html( get_admin_page_title() ); ?></h1>
758				<?php $plugin_table->prepare_items(); ?>
759
760				<?php
761				if ( ! empty( $this->message ) && is_string( $this->message ) ) {
762					echo wp_kses_post( $this->message );
763				}
764				?>
765				<?php $plugin_table->views(); ?>
766
767				<form id="tgmpa-plugins" action="" method="post">
768					<input type="hidden" name="tgmpa-page" value="<?php echo esc_attr( $this->menu ); ?>" />
769					<input type="hidden" name="plugin_status" value="<?php echo esc_attr( $plugin_table->view_context ); ?>" />
770					<?php $plugin_table->display(); ?>
771				</form>
772			</div>
773			<?php
774		}
775
776		/**
777		 * Installs, updates or activates a plugin depending on the action link clicked by the user.
778		 *
779		 * Checks the $_GET variable to see which actions have been
780		 * passed and responds with the appropriate method.
781		 *
782		 * Uses WP_Filesystem to process and handle the plugin installation
783		 * method.
784		 *
785		 * @since 1.0.0
786		 *
787		 * @uses WP_Filesystem
788		 * @uses WP_Error
789		 * @uses WP_Upgrader
790		 * @uses Plugin_Upgrader
791		 * @uses Plugin_Installer_Skin
792		 * @uses Plugin_Upgrader_Skin
793		 *
794		 * @return boolean True on success, false on failure.
795		 */
796		protected function do_plugin_install() {
797			if ( empty( $_GET['plugin'] ) ) {
798				return false;
799			}
800
801			// All plugin information will be stored in an array for processing.
802			$slug = $this->sanitize_key( urldecode( $_GET['plugin'] ) );
803
804			if ( ! isset( $this->plugins[ $slug ] ) ) {
805				return false;
806			}
807
808			// Was an install or upgrade action link clicked?
809			if ( ( isset( $_GET['tgmpa-install'] ) && 'install-plugin' === $_GET['tgmpa-install'] ) || ( isset( $_GET['tgmpa-update'] ) && 'update-plugin' === $_GET['tgmpa-update'] ) ) {
810
811				$install_type = 'install';
812				if ( isset( $_GET['tgmpa-update'] ) && 'update-plugin' === $_GET['tgmpa-update'] ) {
813					$install_type = 'update';
814				}
815
816				check_admin_referer( 'tgmpa-' . $install_type, 'tgmpa-nonce' );
817
818				// Pass necessary information via URL if WP_Filesystem is needed.
819				$url = wp_nonce_url(
820					add_query_arg(
821						array(
822							'plugin'                 => urlencode( $slug ),
823							'tgmpa-' . $install_type => $install_type . '-plugin',
824						),
825						$this->get_tgmpa_url()
826					),
827					'tgmpa-' . $install_type,
828					'tgmpa-nonce'
829				);
830
831				$method = ''; // Leave blank so WP_Filesystem can populate it as necessary.
832
833				if ( false === ( $creds = request_filesystem_credentials( esc_url_raw( $url ), $method, false, false, array() ) ) ) {
834					return true;
835				}
836
837				if ( ! WP_Filesystem( $creds ) ) {
838					request_filesystem_credentials( esc_url_raw( $url ), $method, true, false, array() ); // Setup WP_Filesystem.
839					return true;
840				}
841
842				/* If we arrive here, we have the filesystem. */
843
844				// Prep variables for Plugin_Installer_Skin class.
845				$extra         = array();
846				$extra['slug'] = $slug; // Needed for potentially renaming of directory name.
847				$source        = $this->get_download_url( $slug );
848				$api           = ( 'repo' === $this->plugins[ $slug ]['source_type'] ) ? $this->get_plugins_api( $slug ) : null;
849				$api           = ( false !== $api ) ? $api : null;
850
851				$url = add_query_arg(
852					array(
853						'action' => $install_type . '-plugin',
854						'plugin' => urlencode( $slug ),
855					),
856					'update.php'
857				);
858
859				if ( ! class_exists( 'Plugin_Upgrader', false ) ) {
860					require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
861				}
862
863				$title     = ( 'update' === $install_type ) ? $this->strings['updating'] : $this->strings['installing'];
864				$skin_args = array(
865					'type'   => ( 'bundled' !== $this->plugins[ $slug ]['source_type'] ) ? 'web' : 'upload',
866					'title'  => sprintf( $title, $this->plugins[ $slug ]['name'] ),
867					'url'    => esc_url_raw( $url ),
868					'nonce'  => $install_type . '-plugin_' . $slug,
869					'plugin' => '',
870					'api'    => $api,
871					'extra'  => $extra,
872				);
873				unset( $title );
874
875				if ( 'update' === $install_type ) {
876					$skin_args['plugin'] = $this->plugins[ $slug ]['file_path'];
877					$skin                = new Plugin_Upgrader_Skin( $skin_args );
878				} else {
879					$skin = new Plugin_Installer_Skin( $skin_args );
880				}
881
882				// Create a new instance of Plugin_Upgrader.
883				$upgrader = new Plugin_Upgrader( $skin );
884
885				// Perform the action and install the plugin from the $source urldecode().
886				add_filter( 'upgrader_source_selection', array( $this, 'maybe_adjust_source_dir' ), 1, 3 );
887
888				if ( 'update' === $install_type ) {
889					// Inject our info into the update transient.
890					$to_inject                    = array( $slug => $this->plugins[ $slug ] );
891					$to_inject[ $slug ]['source'] = $source;
892					$this->inject_update_info( $to_inject );
893
894					$upgrader->upgrade( $this->plugins[ $slug ]['file_path'] );
895				} else {
896					$upgrader->install( $source );
897				}
898
899				remove_filter( 'upgrader_source_selection', array( $this, 'maybe_adjust_source_dir' ), 1 );
900
901				// Make sure we have the correct file path now the plugin is installed/updated.
902				$this->populate_file_path( $slug );
903
904				// Only activate plugins if the config option is set to true and the plugin isn't
905				// already active (upgrade).
906				if ( $this->is_automatic && ! $this->is_plugin_active( $slug ) ) {
907					$plugin_activate = $upgrader->plugin_info(); // Grab the plugin info from the Plugin_Upgrader method.
908					if ( false === $this->activate_single_plugin( $plugin_activate, $slug, true ) ) {
909						return true; // Finish execution of the function early as we encountered an error.
910					}
911				}
912
913				$this->show_tgmpa_version();
914
915				// Display message based on if all plugins are now active or not.
916				if ( $this->is_tgmpa_complete() ) {
917					echo '<p>', sprintf( esc_html( $this->strings['complete'] ), '<a href="' . esc_url( self_admin_url() ) . '">' . esc_html__( 'Return to the Dashboard', 'kreativ-pro' ) . '</a>' ), '</p>';
918					echo '<style type="text/css">#adminmenu .wp-submenu li.current { display: none !important; }</style>';
919				} else {
920					echo '<p><a href="', esc_url( $this->get_tgmpa_url() ), '" target="_parent">', esc_html( $this->strings['return'] ), '</a></p>';
921				}
922
923				return true;
924			} elseif ( isset( $this->plugins[ $slug ]['file_path'], $_GET['tgmpa-activate'] ) && 'activate-plugin' === $_GET['tgmpa-activate'] ) {
925				// Activate action link was clicked.
926				check_admin_referer( 'tgmpa-activate', 'tgmpa-nonce' );
927
928				if ( false === $this->activate_single_plugin( $this->plugins[ $slug ]['file_path'], $slug ) ) {
929					return true; // Finish execution of the function early as we encountered an error.
930				}
931			}
932
933			return false;
934		}
935
936		/**
937		 * Inject information into the 'update_plugins' site transient as WP checks that before running an update.
938		 *
939		 * @since 2.5.0
940		 *
941		 * @param array $plugins The plugin information for the plugins which are to be updated.
942		 */
943		public function inject_update_info( $plugins ) {
944			$repo_updates = get_site_transient( 'update_plugins' );
945
946			if ( ! is_object( $repo_updates ) ) {
947				$repo_updates = new stdClass;
948			}
949
950			foreach ( $plugins as $slug => $plugin ) {
951				$file_path = $plugin['file_path'];
952
953				if ( empty( $repo_updates->response[ $file_path ] ) ) {
954					$repo_updates->response[ $file_path ] = new stdClass;
955				}
956
957				// We only really need to set package, but let's do all we can in case WP changes something.
958				$repo_updates->response[ $file_path ]->slug        = $slug;
959				$repo_updates->response[ $file_path ]->plugin      = $file_path;
960				$repo_updates->response[ $file_path ]->new_version = $plugin['version'];
961				$repo_updates->response[ $file_path ]->package     = $plugin['source'];
962				if ( empty( $repo_updates->response[ $file_path ]->url ) && ! empty( $plugin['external_url'] ) ) {
963					$repo_updates->response[ $file_path ]->url = $plugin['external_url'];
964				}
965			}
966
967			set_site_transient( 'update_plugins', $repo_updates );
968		}
969
970		/**
971		 * Adjust the plugin directory name if necessary.
972		 *
973		 * The final destination directory of a plugin is based on the subdirectory name found in the
974		 * (un)zipped source. In some cases - most notably GitHub repository plugin downloads -, this
975		 * subdirectory name is not the same as the expected slug and the plugin will not be recognized
976		 * as installed. This is fixed by adjusting the temporary unzipped source subdirectory name to
977		 * the expected plugin slug.
978		 *
979		 * @since 2.5.0
980		 *
981		 * @param string       $source        Path to upgrade/zip-file-name.tmp/subdirectory/.
982		 * @param string       $remote_source Path to upgrade/zip-file-name.tmp.
983		 * @param \WP_Upgrader $upgrader      Instance of the upgrader which installs the plugin.
984		 * @return string $source
985		 */
986		public function maybe_adjust_source_dir( $source, $remote_source, $upgrader ) {
987			if ( ! $this->is_tgmpa_page() || ! is_object( $GLOBALS['wp_filesystem'] ) ) {
988				return $source;
989			}
990
991			// Check for single file plugins.
992			$source_files = array_keys( $GLOBALS['wp_filesystem']->dirlist( $remote_source ) );
993			if ( 1 === count( $source_files ) && false === $GLOBALS['wp_filesystem']->is_dir( $source ) ) {
994				return $source;
995			}
996
997			// Multi-file plugin, let's see if the directory is correctly named.
998			$desired_slug = '';
999
1000			// Figure out what the slug is supposed to be.
1001			if ( false === $upgrader->bulk && ! empty( $upgrader->skin->options['extra']['slug'] ) ) {
1002				$desired_slug = $upgrader->skin->options['extra']['slug'];
1003			} else {
1004				// Bulk installer contains less info, so fall back on the info registered here.
1005				foreach ( $this->plugins as $slug => $plugin ) {
1006					if ( ! empty( $upgrader->skin->plugin_names[ $upgrader->skin->i ] ) && $plugin['name'] === $upgrader->skin->plugin_names[ $upgrader->skin->i ] ) {
1007						$desired_slug = $slug;
1008						break;
1009					}
1010				}
1011				unset( $slug, $plugin );
1012			}
1013
1014			if ( ! empty( $desired_slug ) ) {
1015				$subdir_name = untrailingslashit( str_replace( trailingslashit( $remote_source ), '', $source ) );
1016
1017				if ( ! empty( $subdir_name ) && $subdir_name !== $desired_slug ) {
1018					$from_path = untrailingslashit( $source );
1019					$to_path   = trailingslashit( $remote_source ) . $desired_slug;
1020
1021					if ( true === $GLOBALS['wp_filesystem']->move( $from_path, $to_path ) ) {
1022						return trailingslashit( $to_path );
1023					} else {
1024						return new WP_Error( 'rename_failed', esc_html__( 'The remote plugin package does not contain a folder with the desired slug and renaming did not work.', 'kreativ-pro' ) . ' ' . esc_html__( 'Please contact the plugin provider and ask them to package their plugin according to the WordPress guidelines.', 'kreativ-pro' ), array( 'found' => $subdir_name, 'expected' => $desired_slug ) );
1025					}
1026				} elseif ( empty( $subdir_name ) ) {
1027					return new WP_Error( 'packaged_wrong', esc_html__( 'The remote plugin package consists of more than one file, but the files are not packaged in a folder.', 'kreativ-pro' ) . ' ' . esc_html__( 'Please contact the plugin provider and ask them to package their plugin according to the WordPress guidelines.', 'kreativ-pro' ), array( 'found' => $subdir_name, 'expected' => $desired_slug ) );
1028				}
1029			}
1030
1031			return $source;
1032		}
1033
1034		/**
1035		 * Activate a single plugin and send feedback about the result to the screen.
1036		 *
1037		 * @since 2.5.0
1038		 *
1039		 * @param string $file_path Path within wp-plugins/ to main plugin file.
1040		 * @param string $slug      Plugin slug.
1041		 * @param bool   $automatic Whether this is an automatic activation after an install. Defaults to false.
1042		 *                          This determines the styling of the output messages.
1043		 * @return bool False if an error was encountered, true otherwise.
1044		 */
1045		protected function activate_single_plugin( $file_path, $slug, $automatic = false ) {
1046			if ( $this->can_plugin_activate( $slug ) ) {
1047				$activate = activate_plugin( $file_path );
1048
1049				if ( is_wp_error( $activate ) ) {
1050					echo '<div id="message" class="error"><p>', wp_kses_post( $activate->get_error_message() ), '</p></div>',
1051						'<p><a href="', esc_url( $this->get_tgmpa_url() ), '" target="_parent">', esc_html( $this->strings['return'] ), '</a></p>';
1052
1053					return false; // End it here if there is an error with activation.
1054				} else {
1055					if ( ! $automatic ) {
1056						// Make sure message doesn't display again if bulk activation is performed
1057						// immediately after a single activation.
1058						if ( ! isset( $_POST['action'] ) ) { // WPCS: CSRF OK.
1059							echo '<div id="message" class="updated"><p>', esc_html( $this->strings['activated_successfully'] ), ' <strong>', esc_html( $this->plugins[ $slug ]['name'] ), '.</strong></p></div>';
1060						}
1061					} else {
1062						// Simpler message layout for use on the plugin install page.
1063						echo '<p>', esc_html( $this->strings['plugin_activated'] ), '</p>';
1064					}
1065				}
1066			} elseif ( $this->is_plugin_active( $slug ) ) {
1067				// No simpler message format provided as this message should never be encountered
1068				// on the plugin install page.
1069				echo '<div id="message" class="error"><p>',
1070					sprintf(
1071						esc_html( $this->strings['plugin_already_active'] ),
1072						'<strong>' . esc_html( $this->plugins[ $slug ]['name'] ) . '</strong>'
1073					),
1074					'</p></div>';
1075			} elseif ( $this->does_plugin_require_update( $slug ) ) {
1076				if ( ! $automatic ) {
1077					// Make sure message doesn't display again if bulk activation is performed
1078					// immediately after a single activation.
1079					if ( ! isset( $_POST['action'] ) ) { // WPCS: CSRF OK.
1080						echo '<div id="message" class="error"><p>',
1081							sprintf(
1082								esc_html( $this->strings['plugin_needs_higher_version'] ),
1083								'<strong>' . esc_html( $this->plugins[ $slug ]['name'] ) . '</strong>'
1084							),
1085							'</p></div>';
1086					}
1087				} else {
1088					// Simpler message layout for use on the plugin install page.
1089					echo '<p>', sprintf( esc_html( $this->strings['plugin_needs_higher_version'] ), esc_html( $this->plugins[ $slug ]['name'] ) ), '</p>';
1090				}
1091			}
1092
1093			return true;
1094		}
1095
1096		/**
1097		 * Echoes required plugin notice.
1098		 *
1099		 * Outputs a message telling users that a specific plugin is required for
1100		 * their theme. If appropriate, it includes a link to the form page where
1101		 * users can install and activate the plugin.
1102		 *
1103		 * Returns early if we're on the Install page.
1104		 *
1105		 * @since 1.0.0
1106		 *
1107		 * @global object $current_screen
1108		 *
1109		 * @return null Returns early if we're on the Install page.
1110		 */
1111		public function notices() {
1112			// Remove nag on the install page / Return early if the nag message has been dismissed or user < author.
1113			if ( ( $this->is_tgmpa_page() || $this->is_core_update_page() ) || get_user_meta( get_current_user_id(), 'tgmpa_dismissed_notice_' . $this->id, true ) || ! current_user_can( apply_filters( 'tgmpa_show_admin_notice_capability', 'publish_posts' ) ) ) {
1114				return;
1115			}
1116
1117			// Store for the plugin slugs by message type.
1118			$message = array();
1119
1120			// Initialize counters used to determine plurality of action link texts.
1121			$install_link_count          = 0;
1122			$update_link_count           = 0;
1123			$activate_link_count         = 0;
1124			$total_required_action_count = 0;
1125
1126			foreach ( $this->plugins as $slug => $plugin ) {
1127				if ( $this->is_plugin_active( $slug ) && false === $this->does_plugin_have_update( $slug ) ) {
1128					continue;
1129				}
1130
1131				if ( ! $this->is_plugin_installed( $slug ) ) {
1132					if ( current_user_can( 'install_plugins' ) ) {
1133						$install_link_count++;
1134
1135						if ( true === $plugin['required'] ) {
1136							$message['notice_can_install_required'][] = $slug;
1137						} else {
1138							$message['notice_can_install_recommended'][] = $slug;
1139						}
1140					}
1141					if ( true === $plugin['required'] ) {
1142						$total_required_action_count++;
1143					}
1144				} else {
1145					if ( ! $this->is_plugin_active( $slug ) && $this->can_plugin_activate( $slug ) ) {
1146						if ( current_user_can( 'activate_plugins' ) ) {
1147							$activate_link_count++;
1148
1149							if ( true === $plugin['required'] ) {
1150								$message['notice_can_activate_required'][] = $slug;
1151							} else {
1152								$message['notice_can_activate_recommended'][] = $slug;
1153							}
1154						}
1155						if ( true === $plugin['required'] ) {
1156							$total_required_action_count++;
1157						}
1158					}
1159
1160					if ( $this->does_plugin_require_update( $slug ) || false !== $this->does_plugin_have_update( $slug ) ) {
1161
1162						if ( current_user_can( 'update_plugins' ) ) {
1163							$update_link_count++;
1164
1165							if ( $this->does_plugin_require_update( $slug ) ) {
1166								$message['notice_ask_to_update'][] = $slug;
1167							} elseif ( false !== $this->does_plugin_have_update( $slug ) ) {
1168								$message['notice_ask_to_update_maybe'][] = $slug;
1169							}
1170						}
1171						if ( true === $plugin['required'] ) {
1172							$total_required_action_count++;
1173						}
1174					}
1175				}
1176			}
1177			unset( $slug, $plugin );
1178
1179			// If we have notices to display, we move forward.
1180			if ( ! empty( $message ) || $total_required_action_count > 0 ) {
1181				krsort( $message ); // Sort messages.
1182				$rendered = '';
1183
1184				// As add_settings_error() wraps the final message in a <p> and as the final message can't be
1185				// filtered, using <p>'s in our html would render invalid html output.
1186				$line_template = '<span style="display: block; margin: 0.5em 0.5em 0 0; clear: both;">%s</span>' . "\n";
1187
1188				if ( ! current_user_can( 'activate_plugins' ) && ! current_user_can( 'install_plugins' ) && ! current_user_can( 'update_plugins' ) ) {
1189					$rendered  = esc_html( $this->strings['notice_cannot_install_activate'] ) . ' ' . esc_html( $this->strings['contact_admin'] );
1190					$rendered .= $this->create_user_action_links_for_notice( 0, 0, 0, $line_template );
1191				} else {
1192
1193					// If dismissable is false and a message is set, output it now.
1194					if ( ! $this->dismissable && ! empty( $this->dismiss_msg ) ) {
1195						$rendered .= sprintf( $line_template, wp_kses_post( $this->dismiss_msg ) );
1196					}
1197
1198					// Render the individual message lines for the notice.
1199					foreach ( $message as $type => $plugin_group ) {
1200						$linked_plugins = array();
1201
1202						// Get the external info link for a plugin if one is available.
1203						foreach ( $plugin_group as $plugin_slug ) {
1204							$linked_plugins[] = $this->get_info_link( $plugin_slug );
1205						}
1206						unset( $plugin_slug );
1207
1208						$count          = count( $plugin_group );
1209						$linked_plugins = array_map( array( 'TGMPA_Utils', 'wrap_in_em' ), $linked_plugins );
1210						$last_plugin    = array_pop( $linked_plugins ); // Pop off last name to prep for readability.
1211						$imploded       = empty( $linked_plugins ) ? $last_plugin : ( implode( ', ', $linked_plugins ) . ' ' . esc_html_x( 'and', 'plugin A *and* plugin B', 'kreativ-pro' ) . ' ' . $last_plugin );
1212
1213						$rendered .= sprintf(
1214							$line_template,
1215							sprintf(
1216								translate_nooped_plural( $this->strings[ $type ], $count, 'kreativ-pro' ),
1217								$imploded,
1218								$count
1219							)
1220						);
1221
1222					}
1223					unset( $type, $plugin_group, $linked_plugins, $count, $last_plugin, $imploded );
1224
1225					$rendered .= $this->create_user_action_links_for_notice( $install_link_count, $update_link_count, $activate_link_count, $line_template );
1226				}
1227
1228				// Register the nag messages and prepare them to be processed.
1229				add_settings_error( 'tgmpa', 'tgmpa', $rendered, $this->get_admin_notice_class() );
1230			}
1231
1232			// Admin options pages already output settings_errors, so this is to avoid duplication.
1233			if ( 'options-general' !== $GLOBALS['current_screen']->parent_base ) {
1234				$this->display_settings_errors();
1235			}
1236		}
1237
1238		/**
1239		 * Generate the user action links for the admin notice.
1240		 *
1241		 * @since 2.6.0
1242		 *
1243		 * @param int $install_count  Number of plugins to install.
1244		 * @param int $update_count   Number of plugins to update.
1245		 * @param int $activate_count Number of plugins to activate.
1246		 * @param int $line_template  Template for the HTML tag to output a line.
1247		 * @return string Action links.
1248		 */
1249		protected function create_user_action_links_for_notice( $install_count, $update_count, $activate_count, $line_template ) {
1250			// Setup action links.
1251			$action_links = array(
1252				'install'  => '',
1253				'update'   => '',
1254				'activate' => '',
1255				'dismiss'  => $this->dismissable ? '<a href="' . esc_url( wp_nonce_url( add_query_arg( 'tgmpa-dismiss', 'dismiss_admin_notices' ), 'tgmpa-dismiss-' . get_current_user_id() ) ) . '" class="dismiss-notice" target="_parent">' . esc_html( $this->strings['dismiss'] ) . '</a>' : '',
1256			);
1257
1258			$link_template = '<a href="%2$s">%1$s</a>';
1259
1260			if ( current_user_can( 'install_plugins' ) ) {
1261				if ( $install_count > 0 ) {
1262					$action_links['install'] = sprintf(
1263						$link_template,
1264						translate_nooped_plural( $this->strings['install_link'], $install_count, 'kreativ-pro' ),
1265						esc_url( $this->get_tgmpa_status_url( 'install' ) )
1266					);
1267				}
1268				if ( $update_count > 0 ) {
1269					$action_links['update'] = sprintf(
1270						$link_template,
1271						translate_nooped_plural( $this->strings['update_link'], $update_count, 'kreativ-pro' ),
1272						esc_url( $this->get_tgmpa_status_url( 'update' ) )
1273					);
1274				}
1275			}
1276
1277			if ( current_user_can( 'activate_plugins' ) && $activate_count > 0 ) {
1278				$action_links['activate'] = sprintf(
1279					$link_template,
1280					translate_nooped_plural( $this->strings['activate_link'], $activate_count, 'kreativ-pro' ),
1281					esc_url( $this->get_tgmpa_status_url( 'activate' ) )
1282				);
1283			}
1284
1285			$action_links = apply_filters( 'tgmpa_notice_action_links', $action_links );
1286
1287			$action_links = array_filter( (array) $action_links ); // Remove any empty array items.
1288
1289			if ( ! empty( $action_links ) ) {
1290				$action_links = sprintf( $line_template, implode( ' | ', $action_links ) );
1291				return apply_filters( 'tgmpa_notice_rendered_action_links', $action_links );
1292			} else {
1293				return '';
1294			}
1295		}
1296
1297		/**
1298		 * Get admin notice class.
1299		 *
1300		 * Work around all the changes to the various admin notice classes between WP 4.4 and 3.7
1301		 * (lowest supported version by TGMPA).
1302		 *
1303		 * @since 2.6.0
1304		 *
1305		 * @return string
1306		 */
1307		protected function get_admin_notice_class() {
1308			if ( ! empty( $this->strings['nag_type'] ) ) {
1309				return sanitize_html_class( strtolower( $this->strings['nag_type'] ) );
1310			} else {
1311				if ( version_compare( $this->wp_version, '4.2', '>=' ) ) {
1312					return 'notice-warning';
1313				} elseif ( version_compare( $this->wp_version, '4.1', '>=' ) ) {
1314					return 'notice';
1315				} else {
1316					return 'updated';
1317				}
1318			}
1319		}
1320
1321		/**
1322		 * Display settings errors and remove those which have been displayed to avoid duplicate messages showing
1323		 *
1324		 * @since 2.5.0
1325		 */
1326		protected function display_settings_errors() {
1327			global $wp_settings_errors;
1328
1329			settings_errors( 'kreativ-pro' );
1330
1331			foreach ( (array) $wp_settings_errors as $key => $details ) {
1332				if ( 'tgmpa' === $details['setting'] ) {
1333					unset( $wp_settings_errors[ $key ] );
1334					break;
1335				}
1336			}
1337		}
1338
1339		/**
1340		 * Register dismissal of admin notices.
1341		 *
1342		 * Acts on the dismiss link in the admin nag messages.
1343		 * If clicked, the admin notice disappears and will no longer be visible to this user.
1344		 *
1345		 * @since 2.1.0
1346		 */
1347		public function dismiss() {
1348			if ( isset( $_GET['tgmpa-dismiss'] ) && check_admin_referer( 'tgmpa-dismiss-' . get_current_user_id() ) ) {
1349				update_user_meta( get_current_user_id(), 'tgmpa_dismissed_notice_' . $this->id, 1 );
1350			}
1351		}
1352
1353		/**
1354		 * Add individual plugin to our collection of plugins.
1355		 *
1356		 * If the required keys are not set or the plugin has already
1357		 * been registered, the plugin is not added.
1358		 *
1359		 * @since 2.0.0
1360		 *
1361		 * @param array|null $plugin Array of plugin arguments or null if invalid argument.
1362		 * @return null Return early if incorrect argument.
1363		 */
1364		public function register( $plugin ) {
1365			if ( empty( $plugin['slug'] ) || empty( $plugin['name'] ) ) {
1366				return;
1367			}
1368
1369			if ( empty( $plugin['slug'] ) || ! is_string( $plugin['slug'] ) || isset( $this->plugins[ $plugin['slug'] ] ) ) {
1370				return;
1371			}
1372
1373			$defaults = array(
1374				'name'               => '',      // String.
1375				'slug'               => '',      // String.
1376				'source'             => 'repo',  // String.
1377				'required'           => false,   // Boolean.
1378				'version'            => '',      // String.
1379				'force_activation'   => false,   // Boolean.
1380				'force_deactivation' => false,   // Boolean.
1381				'external_url'       => '',      // String.
1382				'is_callable'        => '',      // String|Array.
1383			);
1384
1385			// Prepare the received data.
1386			$plugin = wp_parse_args( $plugin, $defaults );
1387
1388			// Standardize the received slug.
1389			$plugin['slug'] = $this->sanitize_key( $plugin['slug'] );
1390
1391			// Forgive users for using string versions of booleans or floats for version number.
1392			$plugin['version']            = (string) $plugin['version'];
1393			$plugin['source']             = empty( $plugin['source'] ) ? 'repo' : $plugin['source'];
1394			$plugin['required']           = TGMPA_Utils::validate_bool( $plugin['required'] );
1395			$plugin['force_activation']   = TGMPA_Utils::validate_bool( $plugin['force_activation'] );
1396			$plugin['force_deactivation'] = TGMPA_Utils::validate_bool( $plugin['force_deactivation'] );
1397
1398			// Enrich the received data.
1399			$plugin['file_path']   = $this->_get_plugin_basename_from_slug( $plugin['slug'] );
1400			$plugin['source_type'] = $this->get_plugin_source_type( $plugin['source'] );
1401
1402			// Set the class properties.
1403			$this->plugins[ $plugin['slug'] ]    = $plugin;
1404			$this->sort_order[ $plugin['slug'] ] = $plugin['name'];
1405
1406			// Should we add the force activation hook ?
1407			if ( true === $plugin['force_activation'] ) {
1408				$this->has_forced_activation = true;
1409			}
1410
1411			// Should we add the force deactivation hook ?
1412			if ( true === $plugin['force_deactivation'] ) {
1413				$this->has_forced_deactivation = true;
1414			}
1415		}
1416
1417		/**
1418		 * Determine what type of source the plugin comes from.
1419		 *
1420		 * @since 2.5.0
1421		 *
1422		 * @param string $source The source of the plugin as provided, either empty (= WP repo), a file path
1423		 *                       (= bundled) or an external URL.
1424		 * @return string 'repo', 'external', or 'bundled'
1425		 */
1426		protected function get_plugin_source_type( $source ) {
1427			if ( 'repo' === $source || preg_match( self::WP_REPO_REGEX, $source ) ) {
1428				return 'repo';
1429			} elseif ( preg_match( self::IS_URL_REGEX, $source ) ) {
1430				return 'external';
1431			} else {
1432				return 'bundled';
1433			}
1434		}
1435
1436		/**
1437		 * Sanitizes a string key.
1438		 *
1439		 * Near duplicate of WP Core `sanitize_key()`. The difference is that uppercase characters *are*
1440		 * allowed, so as not to break upgrade paths from non-standard bundled plugins using uppercase
1441		 * characters in the plugin directory path/slug. Silly them.
1442		 *
1443		 * @see https://developer.wordpress.org/reference/hooks/sanitize_key/
1444		 *
1445		 * @since 2.5.0
1446		 *
1447		 * @param string $key String key.
1448		 * @return string Sanitized key
1449		 */
1450		public function sanitize_key( $key ) {
1451			$raw_key = $key;
1452			$key     = preg_replace( '`[^A-Za-z0-9_-]`', '', $key );
1453
1454			/**
1455			 * Filter a sanitized key string.
1456			 *
1457			 * @since 2.5.0
1458			 *
1459			 * @param string $key     Sanitized key.
1460			 * @param string $raw_key The key prior to sanitization.
1461			 */
1462			return apply_filters( 'tgmpa_sanitize_key', $key, $raw_key );
1463		}
1464
1465		/**
1466		 * Amend default configuration settings.
1467		 *
1468		 * @since 2.0.0
1469		 *
1470		 * @param array $config Array of config options to pass as class properties.
1471		 */
1472		public function config( $config ) {
1473			$keys = array(
1474				'id',
1475				'default_path',
1476				'has_notices',
1477				'dismissable',
1478				'dismiss_msg',
1479				'menu',
1480				'parent_slug',
1481				'capability',
1482				'is_automatic',
1483				'message',
1484				'strings',
1485			);
1486
1487			foreach ( $keys as $key ) {
1488				if ( isset( $config[ $key ] ) ) {
1489					if ( is_array( $config[ $key ] ) ) {
1490						$this->$key = array_merge( $this->$key, $config[ $key ] );
1491					} else {
1492						$this->$key = $config[ $key ];
1493					}
1494				}
1495			}
1496		}
1497
1498		/**
1499		 * Amend action link after plugin installation.
1500		 *
1501		 * @since 2.0.0
1502		 *
1503		 * @param array $install_actions Existing array of actions.
1504		 * @return false|array Amended array of actions.
1505		 */
1506		public function actions( $install_actions ) {
1507			// Remove action links on the TGMPA install page.
1508			if ( $this->is_tgmpa_page() ) {
1509				return false;
1510			}
1511
1512			return $install_actions;
1513		}
1514
1515		/**
1516		 * Flushes the plugins cache on theme switch to prevent stale entries
1517		 * from remaining in the plugin table.
1518		 *
1519		 * @since 2.4.0
1520		 *
1521		 * @param bool $clear_update_cache Optional. Whether to clear the Plugin updates cache.
1522		 *                                 Parameter added in v2.5.0.
1523		 */
1524		public function flush_plugins_cache( $clear_update_cache = true ) {
1525			wp_clean_plugins_cache( $clear_update_cache );
1526		}
1527
1528		/**
1529		 * Set file_path key for each installed plugin.
1530		 *
1531		 * @since 2.1.0
1532		 *
1533		 * @param string $plugin_slug Optional. If set, only (re-)populates the file path for that specific plugin.
1534		 *                            Parameter added in v2.5.0.
1535		 */
1536		public function populate_file_path( $plugin_slug = '' ) {
1537			if ( ! empty( $plugin_slug ) && is_string( $plugin_slug ) && isset( $this->plugins[ $plugin_slug ] ) ) {
1538				$this->plugins[ $plugin_slug ]['file_path'] = $this->_get_plugin_basename_from_slug( $plugin_slug );
1539			} else {
1540				// Add file_path key for all plugins.
1541				foreach ( $this->plugins as $slug => $values ) {
1542					$this->plugins[ $slug ]['file_path'] = $this->_get_plugin_basename_from_slug( $slug );
1543				}
1544			}
1545		}
1546
1547		/**
1548		 * Helper function to extract the file path of the plugin file from the
1549		 * plugin slug, if the plugin is installed.
1550		 *
1551		 * @since 2.0.0
1552		 *
1553		 * @param string $slug Plugin slug (typically folder name) as provided by the developer.
1554		 * @return string Either file path for plugin if installed, or just the plugin slug.
1555		 */
1556		protected function _get_plugin_basename_from_slug( $slug ) {
1557			$keys = array_keys( $this->get_plugins() );
1558
1559			foreach ( $keys as $key ) {
1560				if ( preg_match( '|^' . $slug . '/|', $key ) ) {
1561					return $key;
1562				}
1563			}
1564
1565			return $slug;
1566		}
1567
1568		/**
1569		 * Retrieve plugin data, given the plugin name.
1570		 *
1571		 * Loops through the registered plugins looking for $name. If it finds it,
1572		 * it returns the $data from that plugin. Otherwise, returns false.
1573		 *
1574		 * @since 2.1.0
1575		 *
1576		 * @param string $name Name of the plugin, as it was registered.
1577		 * @param string $data Optional. Array key of plugin data to return. Default is slug.
1578		 * @return string|boolean Plugin slug if found, false otherwise.
1579		 */
1580		public function _get_plugin_data_from_name( $name, $data = 'slug' ) {
1581			foreach ( $this->plugins as $values ) {
1582				if ( $name === $values['name'] && isset( $values[ $data ] ) ) {
1583					return $values[ $data ];
1584				}
1585			}
1586
1587			return false;
1588		}
1589
1590		/**
1591		 * Retrieve the download URL for a package.
1592		 *
1593		 * @since 2.5.0
1594		 *
1595		 * @param string $slug Plugin slug.
1596		 * @return string Plugin download URL or path to local file or empty string if undetermined.
1597		 */
1598		public function get_download_url( $slug ) {
1599			$dl_source = '';
1600
1601			switch ( $this->plugins[ $slug ]['source_type'] ) {
1602				case 'repo':
1603					return $this->get_wp_repo_download_url( $slug );
1604				case 'external':
1605					return $this->plugins[ $slug ]['source'];
1606				case 'bundled':
1607					return $this->default_path . $this->plugins[ $slug ]['source'];
1608			}
1609
1610			return $dl_source; // Should never happen.
1611		}
1612
1613		/**
1614		 * Retrieve the download URL for a WP repo package.
1615		 *
1616		 * @since 2.5.0
1617		 *
1618		 * @param string $slug Plugin slug.
1619		 * @return string Plugin download URL.
1620		 */
1621		protected function get_wp_repo_download_url( $slug ) {
1622			$source = '';
1623			$api    = $this->get_plugins_api( $slug );
1624
1625			if ( false !== $api && isset( $api->download_link ) ) {
1626				$source = $api->download_link;
1627			}
1628
1629			return $source;
1630		}
1631
1632		/**
1633		 * Try to grab information from WordPress API.
1634		 *
1635		 * @since 2.5.0
1636		 *
1637		 * @param string $slug Plugin slug.
1638		 * @return object Plugins_api response object on success, WP_Error on failure.
1639		 */
1640		protected function get_plugins_api( $slug ) {
1641			static $api = array(); // Cache received responses.
1642
1643			if ( ! isset( $api[ $slug ] ) ) {
1644				if ( ! function_exists( 'plugins_api' ) ) {
1645					require_once ABSPATH . 'wp-admin/includes/plugin-install.php';
1646				}
1647
1648				$response = plugins_api( 'plugin_information', array( 'slug' => $slug, 'fields' => array( 'sections' => false ) ) );
1649
1650				$api[ $slug ] = false;
1651
1652				if ( is_wp_error( $response ) ) {
1653					wp_die( esc_html( $this->strings['oops'] ) );
1654				} else {
1655					$api[ $slug ] = $response;
1656				}
1657			}
1658
1659			return $api[ $slug ];
1660		}
1661
1662		/**
1663		 * Retrieve a link to a plugin information page.
1664		 *
1665		 * @since 2.5.0
1666		 *
1667		 * @param string $slug Plugin slug.
1668		 * @return string Fully formed html link to a plugin information page if available
1669		 *                or the plugin name if not.
1670		 */
1671		public function get_info_link( $slug ) {
1672			if ( ! empty( $this->plugins[ $slug ]['external_url'] ) && preg_match( self::IS_URL_REGEX, $this->plugins[ $slug ]['external_url'] ) ) {
1673				$link = sprintf(
1674					'<a href="%1$s" target="_blank">%2$s</a>',
1675					esc_url( $this->plugins[ $slug ]['external_url'] ),
1676					esc_html( $this->plugins[ $slug ]['name'] )
1677				);
1678			} elseif ( 'repo' === $this->plugins[ $slug ]['source_type'] ) {
1679				$url = add_query_arg(
1680					array(
1681						'tab'       => 'plugin-information',
1682						'plugin'    => urlencode( $slug ),
1683						'TB_iframe' => 'true',
1684						'width'     => '640',
1685						'height'    => '500',
1686					),
1687					self_admin_url( 'plugin-install.php' )
1688				);
1689
1690				$link = sprintf(
1691					'<a href="%1$s" class="thickbox">%2$s</a>',
1692					esc_url( $url ),
1693					esc_html( $this->plugins[ $slug ]['name'] )
1694				);
1695			} else {
1696				$link = esc_html( $this->plugins[ $slug ]['name'] ); // No hyperlink.
1697			}
1698
1699			return $link;
1700		}
1701
1702		/**
1703		 * Determine if we're on the TGMPA Install page.
1704		 *
1705		 * @since 2.1.0
1706		 *
1707		 * @return boolean True when on the TGMPA page, false otherwise.
1708		 */
1709		protected function is_tgmpa_page() {
1710			return isset( $_GET['page'] ) && $this->menu === $_GET['page'];
1711		}
1712
1713		/**
1714		 * Determine if we're on a WP Core installation/upgrade page.
1715		 *
1716		 * @since 2.6.0
1717		 *
1718		 * @return boolean True when on a WP Core installation/upgrade page, false otherwise.
1719		 */
1720		protected function is_core_update_page() {
1721			// Current screen is not always available, most notably on the customizer screen.
1722			if ( ! function_exists( 'get_current_screen' ) ) {
1723				return false;
1724			}
1725
1726			$screen = get_current_screen();
1727
1728			if ( 'update-core' === $screen->base ) {
1729				// Core update screen.
1730				return true;
1731			} elseif ( 'plugins' === $screen->base && ! empty( $_POST['action'] ) ) { // WPCS: CSRF ok.
1732				// Plugins bulk update screen.
1733				return true;
1734			} elseif ( 'update' === $screen->base && ! empty( $_POST['action'] ) ) { // WPCS: CSRF ok.
1735				// Individual updates (ajax call).
1736				return true;
1737			}
1738
1739			return false;
1740		}
1741
1742		/**
1743		 * Retrieve the URL to the TGMPA Install page.
1744		 *
1745		 * I.e. depending on the config settings passed something along the lines of:
1746		 * http://example.com/wp-admin/themes.php?page=tgmpa-install-plugins
1747		 *
1748		 * @since 2.5.0
1749		 *
1750		 * @return string Properly encoded URL (not escaped).
1751		 */
1752		public function get_tgmpa_url() {
1753			static $url;
1754
1755			if ( ! isset( $url ) ) {
1756				$parent = $this->parent_slug;
1757				if ( false === strpos( $parent, '.php' ) ) {
1758					$parent = 'admin.php';
1759				}
1760				$url = add_query_arg(
1761					array(
1762						'page' => urlencode( $this->menu ),
1763					),
1764					self_admin_url( $parent )
1765				);
1766			}
1767
1768			return $url;
1769		}
1770
1771		/**
1772		 * Retrieve the URL to the TGMPA Install page for a specific plugin status (view).
1773		 *
1774		 * I.e. depending on the config settings passed something along the lines of:
1775		 * http://example.com/wp-admin/themes.php?page=tgmpa-install-plugins&plugin_status=install
1776		 *
1777		 * @since 2.5.0
1778		 *
1779		 * @param string $status Plugin status - either 'install', 'update' or 'activate'.
1780		 * @return string Properly encoded URL (not escaped).
1781		 */
1782		public function get_tgmpa_status_url( $status ) {
1783			return add_query_arg(
1784				array(
1785					'plugin_status' => urlencode( $status ),
1786				),
1787				$this->get_tgmpa_url()
1788			);
1789		}
1790
1791		/**
1792		 * Determine whether there are open actions for plugins registered with TGMPA.
1793		 *
1794		 * @since 2.5.0
1795		 *
1796		 * @return bool True if complete, i.e. no outstanding actions. False otherwise.
1797		 */
1798		public function is_tgmpa_complete() {
1799			$complete = true;
1800			foreach ( $this->plugins as $slug => $plugin ) {
1801				if ( ! $this->is_plugin_active( $slug ) || false !== $this->does_plugin_have_update( $slug ) ) {
1802					$complete = false;
1803					break;
1804				}
1805			}
1806
1807			return $complete;
1808		}
1809
1810		/**
1811		 * Check if a plugin is installed. Does not take must-use plugins into account.
1812		 *
1813		 * @since 2.5.0
1814		 *
1815		 * @param string $slug Plugin slug.
1816		 * @return bool True if installed, false otherwise.
1817		 */
1818		public function is_plugin_installed( $slug ) {
1819			$installed_plugins = $this->get_plugins(); // Retrieve a list of all installed plugins (WP cached).
1820
1821			return ( ! empty( $installed_plugins[ $this->plugins[ $slug ]['file_path'] ] ) );
1822		}
1823
1824		/**
1825		 * Check if a plugin is active.
1826		 *
1827		 * @since 2.5.0
1828		 *
1829		 * @param string $slug Plugin slug.
1830		 * @return bool True if active, false otherwise.
1831		 */
1832		public function is_plugin_active( $slug ) {
1833			return ( ( ! empty( $this->plugins[ $slug ]['is_callable'] ) && is_callable( $this->plugins[ $slug ]['is_callable'] ) ) || is_plugin_active( $this->plugins[ $slug ]['file_path'] ) );
1834		}
1835
1836		/**
1837		 * Check if a plugin can be updated, i.e. if we have information on the minimum WP version required
1838		 * available, check whether the current install meets them.
1839		 *
1840		 * @since 2.5.0
1841		 *
1842		 * @param string $slug Plugin slug.
1843		 * @return bool True if OK to update, false otherwise.
1844		 */
1845		public function can_plugin_update( $slug ) {
1846			// We currently can't get reliable info on non-WP-repo plugins - issue #380.
1847			if ( 'repo' !== $this->plugins[ $slug ]['source_type'] ) {
1848				return true;
1849			}
1850
1851			$api = $this->get_plugins_api( $slug );
1852
1853			if ( false !== $api && isset( $api->requires ) ) {
1854				return version_compare( $this->wp_version, $api->requires, '>=' );
1855			}
1856
1857			// No usable info received from the plugins API, presume we can update.
1858			return true;
1859		}
1860
1861		/**
1862		 * Check to see if the plugin is 'updatetable', i.e. installed, with an update available
1863		 * and no WP version requirements blocking it.
1864		 *
1865		 * @since 2.6.0
1866		 *
1867		 * @param string $slug Plugin slug.
1868		 * @return bool True if OK to proceed with update, false otherwise.
1869		 */
1870		public function is_plugin_updatetable( $slug ) {
1871			if ( ! $this->is_plugin_installed( $slug ) ) {
1872				return false;
1873			} else {
1874				return ( false !== $this->does_plugin_have_update( $slug ) && $this->can_plugin_update( $slug ) );
1875			}
1876		}
1877
1878		/**
1879		 * Check if a plugin can be activated, i.e. is not currently active and meets the minimum
1880		 * plugin version requirements set in TGMPA (if any).
1881		 *
1882		 * @since 2.5.0
1883		 *
1884		 * @param string $slug Plugin slug.
1885		 * @return bool True if OK to activate, false otherwise.
1886		 */
1887		public function can_plugin_activate( $slug ) {
1888			return ( ! $this->is_plugin_active( $slug ) && ! $this->does_plugin_require_update( $slug ) );
1889		}
1890
1891		/**
1892		 * Retrieve the version number of an installed plugin.
1893		 *
1894		 * @since 2.5.0
1895		 *
1896		 * @param string $slug Plugin slug.
1897		 * @return string Version number as string or an empty string if the plugin is not installed
1898		 *                or version unknown (plugins which don't comply with the plugin header standard).
1899		 */
1900		public function get_installed_version( $slug ) {
1901			$installed_plugins = $this->get_plugins(); // Retrieve a list of all installed plugins (WP cached).
1902
1903			if ( ! empty( $installed_plugins[ $this->plugins[ $slug ]['file_path'] ]['Version'] ) ) {
1904				return $installed_plugins[ $this->plugins[ $slug ]['file_path'] ]['Version'];
1905			}
1906
1907			return '';
1908		}
1909
1910		/**
1911		 * Check whether a plugin complies with the minimum version requirements.
1912		 *
1913		 * @since 2.5.0
1914		 *
1915		 * @param string $slug Plugin slug.
1916		 * @return bool True when a plugin needs to be updated, otherwise false.
1917		 */
1918		public function does_plugin_require_update( $slug ) {
1919			$installed_version = $this->get_installed_version( $slug );
1920			$minimum_version   = $this->plugins[ $slug ]['version'];
1921
1922			return version_compare( $minimum_version, $installed_version, '>' );
1923		}
1924
1925		/**
1926		 * Check whether there is an update available for a plugin.
1927		 *
1928		 * @since 2.5.0
1929		 *
1930		 * @param string $slug Plugin slug.
1931		 * @return false|string Version number string of the available update or false if no update available.
1932		 */
1933		public function does_plugin_have_update( $slug ) {
1934			// Presume bundled and external plugins will point to a package which meets the minimum required version.
1935			if ( 'repo' !== $this->plugins[ $slug ]['source_type'] ) {
1936				if ( $this->does_plugin_require_update( $slug ) ) {
1937					return $this->plugins[ $slug ]['version'];
1938				}
1939
1940				return false;
1941			}
1942
1943			$repo_updates = get_site_transient( 'update_plugins' );
1944
1945			if ( isset( $repo_updates->response[ $this->plugins[ $slug ]['file_path'] ]->new_version ) ) {
1946				return $repo_updates->response[ $this->plugins[ $slug ]['file_path'] ]->new_version;
1947			}
1948
1949			return false;
1950		}
1951
1952		/**
1953		 * Retrieve potential upgrade notice for a plugin.
1954		 *
1955		 * @since 2.5.0
1956		 *
1957		 * @param string $slug Plugin slug.
1958		 * @return string The upgrade notice or an empty string if no message was available or provided.
1959		 */
1960		public function get_upgrade_notice( $slug ) {
1961			// We currently can't get reliable info on non-WP-repo plugins - issue #380.
1962			if ( 'repo' !== $this->plugins[ $slug ]['source_type'] ) {
1963				return '';
1964			}
1965
1966			$repo_updates = get_site_transient( 'update_plugins' );
1967
1968			if ( ! empty( $repo_updates->response[ $this->plugins[ $slug ]['file_path'] ]->upgrade_notice ) ) {
1969				return $repo_updates->response[ $this->plugins[ $slug ]['file_path'] ]->upgrade_notice;
1970			}
1971
1972			return '';
1973		}
1974
1975		/**
1976		 * Wrapper around the core WP get_plugins function, making sure it's actually available.
1977		 *
1978		 * @since 2.5.0
1979		 *
1980		 * @param string $plugin_folder Optional. Relative path to single plugin folder.
1981		 * @return array Array of installed plugins with plugin information.
1982		 */
1983		public function get_plugins( $plugin_folder = '' ) {
1984			if ( ! function_exists( 'get_plugins' ) ) {
1985				require_once ABSPATH . 'wp-admin/includes/plugin.php';
1986			}
1987
1988			return get_plugins( $plugin_folder );
1989		}
1990
1991		/**
1992		 * Delete dismissable nag option when theme is switched.
1993		 *
1994		 * This ensures that the user(s) is/are again reminded via nag of required
1995		 * and/or recommended plugins if they re-activate the theme.
1996		 *
1997		 * @since 2.1.1
1998		 */
1999		public function update_dismiss() {
2000			delete_metadata( 'user', null, 'tgmpa_dismissed_notice_' . $this->id, null, true );
2001		}
2002
2003		/**
2004		 * Forces plugin activation if the parameter 'force_activation' is
2005		 * set to true.
2006		 *
2007		 * This allows theme authors to specify certain plugins that must be
2008		 * active at all times while using the current theme.
2009		 *
2010		 * Please take special care when using this parameter as it has the
2011		 * potential to be harmful if not used correctly. Setting this parameter
2012		 * to true will not allow the specified plugin to be deactivated unless
2013		 * the user switches themes.
2014		 *
2015		 * @since 2.2.0
2016		 */
2017		public function force_activation() {
2018			foreach ( $this->plugins as $slug => $plugin ) {
2019				if ( true === $plugin['force_activation'] ) {
2020					if ( ! $this->is_plugin_installed( $slug ) ) {
2021						// Oops, plugin isn't there so iterate to next condition.
2022						continue;
2023					} elseif ( $this->can_plugin_activate( $slug ) ) {
2024						// There we go, activate the plugin.
2025						activate_plugin( $plugin['file_path'] );
2026					}
2027				}
2028			}
2029		}
2030
2031		/**
2032		 * Forces plugin deactivation if the parameter 'force_deactivation'
2033		 * is set to true and adds the plugin to the 'recently active' plugins list.
2034		 *
2035		 * This allows theme authors to specify certain plugins that must be
2036		 * deactivated upon switching from the current theme to another.
2037		 *
2038		 * Please take special care when using this parameter as it has the
2039		 * potential to be harmful if not used correctly.
2040		 *
2041		 * @since 2.2.0
2042		 */
2043		public function force_deactivation() {
2044			$deactivated = array();
2045
2046			foreach ( $this->plugins as $slug => $plugin ) {
2047				/*
2048				 * Only proceed forward if the parameter is set to true and plugin is active
2049				 * as a 'normal' (not must-use) plugin.
2050				 */
2051				if ( true === $plugin['force_deactivation'] && is_plugin_active( $plugin['file_path'] ) ) {
2052					deactivate_plugins( $plugin['file_path'] );
2053					$deactivated[ $plugin['file_path'] ] = time();
2054				}
2055			}
2056
2057			if ( ! empty( $deactivated ) ) {
2058				update_option( 'recently_activated', $deactivated + (array) get_option( 'recently_activated' ) );
2059			}
2060		}
2061
2062		/**
2063		 * Echo the current TGMPA version number to the page.
2064		 *
2065		 * @since 2.5.0
2066		 */
2067		public function show_tgmpa_version() {
2068			echo '<p style="float: right; padding: 0em 1.5em 0.5em 0;"><strong><small>',
2069				esc_html(
2070					sprintf(
2071						/* translators: %s: version number */
2072						__( 'TGMPA v%s', 'kreativ-pro' ),
2073						self::TGMPA_VERSION
2074					)
2075				),
2076				'</small></strong></p>';
2077		}
2078
2079		/**
2080		 * Returns the singleton instance of the class.
2081		 *
2082		 * @since 2.4.0
2083		 *
2084		 * @return \TGM_Plugin_Activation The TGM_Plugin_Activation object.
2085		 */
2086		public static function get_instance() {
2087			if ( ! isset( self::$instance ) && ! ( self::$instance instanceof self ) ) {
2088				self::$instance = new self();
2089			}
2090
2091			return self::$instance;
2092		}
2093	}
2094
2095	if ( ! function_exists( 'load_tgm_plugin_activation' ) ) {
2096		/**
2097		 * Ensure only one instance of the class is ever invoked.
2098		 *
2099		 * @since 2.5.0
2100		 */
2101		function load_tgm_plugin_activation() {
2102			$GLOBALS['tgmpa'] = TGM_Plugin_Activation::get_instance();
2103		}
2104	}
2105
2106	if ( did_action( 'plugins_loaded' ) ) {
2107		load_tgm_plugin_activation();
2108	} else {
2109		add_action( 'plugins_loaded', 'load_tgm_plugin_activation' );
2110	}
2111}
2112
2113if ( ! function_exists( 'kreativ-pro' ) ) {
2114	/**
2115	 * Helper function to register a collection of required plugins.
2116	 *
2117	 * @since 2.0.0
2118	 * @api
2119	 *
2120	 * @param array $plugins An array of plugin arrays.
2121	 * @param array $config  Optional. An array of configuration values.
2122	 */
2123	function tgmpa( $plugins, $config = array() ) {
2124		$instance = call_user_func( array( get_class( $GLOBALS['tgmpa'] ), 'get_instance' ) );
2125
2126		foreach ( $plugins as $plugin ) {
2127			call_user_func( array( $instance, 'register' ), $plugin );
2128		}
2129
2130		if ( ! empty( $config ) && is_array( $config ) ) {
2131			// Send out notices for deprecated arguments passed.
2132			if ( isset( $config['notices'] ) ) {
2133				_deprecated_argument( __FUNCTION__, '2.2.0', 'The `notices` config parameter was renamed to `has_notices` in TGMPA 2.2.0. Please adjust your configuration.' );
2134				if ( ! isset( $config['has_notices'] ) ) {
2135					$config['has_notices'] = $config['notices'];
2136				}
2137			}
2138
2139			if ( isset( $config['parent_menu_slug'] ) ) {
2140				_deprecated_argument( __FUNCTION__, '2.4.0', 'The `parent_menu_slug` config parameter was removed in TGMPA 2.4.0. In TGMPA 2.5.0 an alternative was (re-)introduced. Please adjust your configuration. For more information visit the website: http://tgmpluginactivation.com/configuration/#h-configuration-options.' );
2141			}
2142			if ( isset( $config['parent_url_slug'] ) ) {
2143				_deprecated_argument( __FUNCTION__, '2.4.0', 'The `parent_url_slug` config parameter was removed in TGMPA 2.4.0. In TGMPA 2.5.0 an alternative was (re-)introduced. Please adjust your configuration. For more information visit the website: http://tgmpluginactivation.com/configuration/#h-configuration-options.' );
2144			}
2145
2146			call_user_func( array( $instance, 'config' ), $config );
2147		}
2148	}
2149}
2150
2151/**
2152 * WP_List_Table isn't always available. If it isn't available,
2153 * we load it here.
2154 *
2155 * @since 2.2.0
2156 */
2157if ( ! class_exists( 'WP_List_Table' ) ) {
2158	require_once ABSPATH . 'wp-admin/includes/class-wp-list-table.php';
2159}
2160
2161if ( ! class_exists( 'TGMPA_List_Table' ) ) {
2162
2163	/**
2164	 * List table class for handling plugins.
2165	 *
2166	 * Extends the WP_List_Table class to provide a future-compatible
2167	 * way of listing out all required/recommended plugins.
2168	 *
2169	 * Gives users an interface similar to the Plugin Administration
2170	 * area with similar (albeit stripped down) capabilities.
2171	 *
2172	 * This class also allows for the bulk install of plugins.
2173	 *
2174	 * @since 2.2.0
2175	 *
2176	 * @package TGM-Plugin-Activation
2177	 * @author  Thomas Griffin
2178	 * @author  Gary Jones
2179	 */
2180	class TGMPA_List_Table extends WP_List_Table {
2181		/**
2182		 * TGMPA instance.
2183		 *
2184		 * @since 2.5.0
2185		 *
2186		 * @var object
2187		 */
2188		protected $tgmpa;
2189
2190		/**
2191		 * The currently chosen view.
2192		 *
2193		 * @since 2.5.0
2194		 *
2195		 * @var string One of: 'all', 'install', 'update', 'activate'
2196		 */
2197		public $view_context = 'all';
2198
2199		/**
2200		 * The plugin counts for the various views.
2201		 *
2202		 * @since 2.5.0
2203		 *
2204		 * @var array
2205		 */
2206		protected $view_totals = array(
2207			'all'      => 0,
2208			'install'  => 0,
2209			'update'   => 0,
2210			'activate' => 0,
2211		);
2212
2213		/**
2214		 * References parent constructor and sets defaults for class.
2215		 *
2216		 * @since 2.2.0
2217		 */
2218		public function __construct() {
2219			$this->tgmpa = call_user_func( array( get_class( $GLOBALS['tgmpa'] ), 'get_instance' ) );
2220
2221			parent::__construct(
2222				array(
2223					'singular' => 'plugin',
2224					'plural'   => 'plugins',
2225					'ajax'     => false,
2226				)
2227			);
2228
2229			if ( isset( $_REQUEST['plugin_status'] ) && in_array( $_REQUEST['plugin_status'], array( 'install', 'update', 'activate' ), true ) ) {
2230				$this->view_context = sanitize_key( $_REQUEST['plugin_status'] );
2231			}
2232
2233			add_filter( 'tgmpa_table_data_items', array( $this, 'sort_table_items' ) );
2234		}
2235
2236		/**
2237		 * Get a list of CSS classes for the <table> tag.
2238		 *
2239		 * Overruled to prevent the 'plural' argument from being added.
2240		 *
2241		 * @since 2.5.0
2242		 *
2243		 * @return array CSS classnames.
2244		 */
2245		public function get_table_classes() {
2246			return array( 'widefat', 'fixed' );
2247		}
2248
2249		/**
2250		 * Gathers and renames all of our plugin information to be used by WP_List_Table to create our table.
2251		 *
2252		 * @since 2.2.0
2253		 *
2254		 * @return array $table_data Information for use in table.
2255		 */
2256		protected function _gather_plugin_data() {
2257			// Load thickbox for plugin links.
2258			$this->tgmpa->admin_init();
2259			$this->tgmpa->thickbox();
2260
2261			// Categorize the plugins which have open actions.
2262			$plugins = $this->categorize_plugins_to_views();
2263
2264			// Set the counts for the view links.
2265			$this->set_view_totals( $plugins );
2266
2267			// Prep variables for use and grab list of all installed plugins.
2268			$table_data = array();
2269			$i          = 0;
2270
2271			// Redirect to the 'all' view if no plugins were found for the selected view context.
2272			if ( empty( $plugins[ $this->view_context ] ) ) {
2273				$this->view_context = 'all';
2274			}
2275
2276			foreach ( $plugins[ $this->view_context ] as $slug => $plugin ) {
2277				$table_data[ $i ]['sanitized_plugin']  = $plugin['name'];
2278				$table_data[ $i ]['slug']              = $slug;
2279				$table_data[ $i ]['plugin']            = '<strong>' . $this->tgmpa->get_info_link( $slug ) . '</strong>';
2280				$table_data[ $i ]['source']            = $this->get_plugin_source_type_text( $plugin['source_type'] );
2281				$table_data[ $i ]['type']              = $this->get_plugin_advise_type_text( $plugin['required'] );
2282				$table_data[ $i ]['status']            = $this->get_plugin_status_text( $slug );
2283				$table_data[ $i ]['installed_version'] = $this->tgmpa->get_installed_version( $slug );
2284				$table_data[ $i ]['minimum_version']   = $plugin['version'];
2285				$table_data[ $i ]['available_version'] = $this->tgmpa->does_plugin_have_update( $slug );
2286
2287				// Prep the upgrade notice info.
2288				$upgrade_notice = $this->tgmpa->get_upgrade_notice( $slug );
2289				if ( ! empty( $upgrade_notice ) ) {
2290					$table_data[ $i ]['upgrade_notice'] = $upgrade_notice;
2291
2292					add_action( "tgmpa_after_plugin_row_{$slug}", array( $this, 'wp_plugin_update_row' ), 10, 2 );
2293				}
2294
2295				$table_data[ $i ] = apply_filters( 'tgmpa_table_data_item', $table_data[ $i ], $plugin );
2296
2297				$i++;
2298			}
2299
2300			return $table_data;
2301		}
2302
2303		/**
2304		 * Categorize the plugins which have open actions into views for the TGMPA page.
2305		 *
2306		 * @since 2.5.0
2307		 */
2308		protected function categorize_plugins_to_views() {
2309			$plugins = array(
2310				'all'      => array(), // Meaning: all plugins which still have open actions.
2311				'install'  => array(),
2312				'update'   => array(),
2313				'activate' => array(),
2314			);
2315
2316			foreach ( $this->tgmpa->plugins as $slug => $plugin ) {
2317				if ( $this->tgmpa->is_plugin_active( $slug ) && false === $this->tgmpa->does_plugin_have_update( $slug ) ) {
2318					// No need to display plugins if they are installed, up-to-date and active.
2319					continue;
2320				} else {
2321					$plugins['all'][ $slug ] = $plugin;
2322
2323					if ( ! $this->tgmpa->is_plugin_installed( $slug ) ) {
2324						$plugins['install'][ $slug ] = $plugin;
2325					} else {
2326						if ( false !== $this->tgmpa->does_plugin_have_update( $slug ) ) {
2327							$plugins['update'][ $slug ] = $plugin;
2328						}
2329
2330						if ( $this->tgmpa->can_plugin_activate( $slug ) ) {
2331							$plugins['activate'][ $slug ] = $plugin;
2332						}
2333					}
2334				}
2335			}
2336
2337			return $plugins;
2338		}
2339
2340		/**
2341		 * Set the counts for the view links.
2342		 *
2343		 * @since 2.5.0
2344		 *
2345		 * @param array $plugins Plugins order by view.
2346		 */
2347		protected function set_view_totals( $plugins ) {
2348			foreach ( $plugins as $type => $list ) {
2349				$this->view_totals[ $type ] = count( $list );
2350			}
2351		}
2352
2353		/**
2354		 * Get the plugin required/recommended text string.
2355		 *
2356		 * @since 2.5.0
2357		 *
2358		 * @param string $required Plugin required setting.
2359		 * @return string
2360		 */
2361		protected function get_plugin_advise_type_text( $required ) {
2362			if ( true === $required ) {
2363				return __( 'Required', 'kreativ-pro' );
2364			}
2365
2366			return __( 'Recommended', 'kreativ-pro' );
2367		}
2368
2369		/**
2370		 * Get the plugin source type text string.
2371		 *
2372		 * @since 2.5.0
2373		 *
2374		 * @param string $type Plugin type.
2375		 * @return string
2376		 */
2377		protected function get_plugin_source_type_text( $type ) {
2378			$string = '';
2379
2380			switch ( $type ) {
2381				case 'repo':
2382					$string = __( 'WordPress Repository', 'kreativ-pro' );
2383					break;
2384				case 'external':
2385					$string = __( 'External Source', 'kreativ-pro' );
2386					break;
2387				case 'bundled':
2388					$string = __( 'Pre-Packaged', 'kreativ-pro' );
2389					break;
2390			}
2391
2392			return $string;
2393		}
2394
2395		/**
2396		 * Determine the plugin status message.
2397		 *
2398		 * @since 2.5.0
2399		 *
2400		 * @param string $slug Plugin slug.
2401		 * @return string
2402		 */
2403		protected function get_plugin_status_text( $slug ) {
2404			if ( ! $this->tgmpa->is_plugin_installed( $slug ) ) {
2405				return __( 'Not Installed', 'kreativ-pro' );
2406			}
2407
2408			if ( ! $this->tgmpa->is_plugin_active( $slug ) ) {
2409				$install_status = __( 'Installed But Not Activated', 'kreativ-pro' );
2410			} else {
2411				$install_status = __( 'Active', 'kreativ-pro' );
2412			}
2413
2414			$update_status = '';
2415
2416			if ( $this->tgmpa->does_plugin_require_update( $slug ) && false === $this->tgmpa->does_plugin_have_update( $slug ) ) {
2417				$update_status = __( 'Required Update not Available', 'kreativ-pro' );
2418
2419			} elseif ( $this->tgmpa->does_plugin_require_update( $slug ) ) {
2420				$update_status = __( 'Requires Update', 'kreativ-pro' );
2421
2422			} elseif ( false !== $this->tgmpa->does_plugin_have_update( $slug ) ) {
2423				$update_status = __( 'Update recommended', 'kreativ-pro' );
2424			}
2425
2426			if ( '' === $update_status ) {
2427				return $install_status;
2428			}
2429
2430			return sprintf(
2431				/* translators: 1: install status, 2: update status */
2432				_x( '%1$s, %2$s', 'Install/Update Status', 'kreativ-pro' ),
2433				$install_status,
2434				$update_status
2435			);
2436		}
2437
2438		/**
2439		 * Sort plugins by Required/Recommended type and by alphabetical plugin name within each type.
2440		 *
2441		 * @since 2.5.0
2442		 *
2443		 * @param array $items Prepared table items.
2444		 * @return array Sorted table items.
2445		 */
2446		public function sort_table_items( $items ) {
2447			$type = array();
2448			$name = array();
2449
2450			foreach ( $items as $i => $plugin ) {
2451				$type[ $i ] = $plugin['type']; // Required / recommended.
2452				$name[ $i ] = $plugin['sanitized_plugin'];
2453			}
2454
2455			array_multisort( $type, SORT_DESC, $name, SORT_ASC, $items );
2456
2457			return $items;
2458		}
2459
2460		/**
2461		 * Get an associative array ( id => link ) of the views available on this table.
2462		 *
2463		 * @since 2.5.0
2464		 *
2465		 * @return array
2466		 */
2467		public function get_views() {
2468			$status_links = array();
2469
2470			foreach ( $this->view_totals as $type => $count ) {
2471				if ( $count < 1 ) {
2472					continue;
2473				}
2474
2475				switch ( $type ) {
2476					case 'all':
2477						/* translators: 1: number of plugins. */
2478						$text = _nx( 'All <span class="count">(%s)</span>', 'All <span class="count">(%s)</span>', $count, 'plugins', 'kreativ-pro' );
2479						break;
2480					case 'install':
2481						/* translators: 1: number of plugins. */
2482						$text = _n( 'To Install <span class="count">(%s)</span>', 'To Install <span class="count">(%s)</span>', $count, 'kreativ-pro' );
2483						break;
2484					case 'update':
2485						/* translators: 1: number of plugins. */
2486						$text = _n( 'Update Available <span class="count">(%s)</span>', 'Update Available <span class="count">(%s)</span>', $count, 'kreativ-pro' );
2487						break;
2488					case 'activate':
2489						/* translators: 1: number of plugins. */
2490						$text = _n( 'To Activate <span class="count">(%s)</span>', 'To Activate <span class="count">(%s)</span>', $count, 'kreativ-pro' );
2491						break;
2492					default:
2493						$text = '';
2494						break;
2495				}
2496
2497				if ( ! empty( $text ) ) {
2498
2499					$status_links[ $type ] = sprintf(
2500						'<a href="%s"%s>%s</a>',
2501						esc_url( $this->tgmpa->get_tgmpa_status_url( $type ) ),
2502						( $type === $this->view_context ) ? ' class="current"' : '',
2503						sprintf( $text, number_format_i18n( $count ) )
2504					);
2505				}
2506			}
2507
2508			return $status_links;
2509		}
2510
2511		/**
2512		 * Create default columns to display important plugin information
2513		 * like type, action and status.
2514		 *
2515		 * @since 2.2.0
2516		 *
2517		 * @param array  $item        Array of item data.
2518		 * @param string $column_name The name of the column.
2519		 * @return string
2520		 */
2521		public function column_default( $item, $column_name ) {
2522			return $item[ $column_name ];
2523		}
2524
2525		/**
2526		 * Required for bulk installing.
2527		 *
2528		 * Adds a checkbox for each plugin.
2529		 *
2530		 * @since 2.2.0
2531		 *
2532		 * @param array $item Array of item data.
2533		 * @return string The input checkbox with all necessary info.
2534		 */
2535		public function column_cb( $item ) {
2536			return sprintf(
2537				'<input type="checkbox" name="%1$s[]" value="%2$s" id="%3$s" />',
2538				esc_attr( $this->_args['singular'] ),
2539				esc_attr( $item['slug'] ),
2540				esc_attr( $item['sanitized_plugin'] )
2541			);
2542		}
2543
2544		/**
2545		 * Create default title column along with the action links.
2546		 *
2547		 * @since 2.2.0
2548		 *
2549		 * @param array $item Array of item data.
2550		 * @return string The plugin name and action links.
2551		 */
2552		public function column_plugin( $item ) {
2553			return sprintf(
2554				'%1$s %2$s',
2555				$item['plugin'],
2556				$this->row_actions( $this->get_row_actions( $item ), true )
2557			);
2558		}
2559
2560		/**
2561		 * Create version information column.
2562		 *
2563		 * @since 2.5.0
2564		 *
2565		 * @param array $item Array of item data.
2566		 * @return string HTML-formatted version information.
2567		 */
2568		public function column_version( $item ) {
2569			$output = array();
2570
2571			if ( $this->tgmpa->is_plugin_installed( $item['slug'] ) ) {
2572				$installed = ! empty( $item['installed_version'] ) ? $item['installed_version'] : _x( 'unknown', 'as in: "version nr unknown"', 'kreativ-pro' );
2573
2574				$color = '';
2575				if ( ! empty( $item['minimum_version'] ) && $this->tgmpa->does_plugin_require_update( $item['slug'] ) ) {
2576					$color = ' color: #ff0000; font-weight: bold;';
2577				}
2578
2579				$output[] = sprintf(
2580					'<p><span style="min-width: 32px; text-align: right; float: right;%1$s">%2$s</span>' . __( 'Installed version:', 'kreativ-pro' ) . '</p>',
2581					$color,
2582					$installed
2583				);
2584			}
2585
2586			if ( ! empty( $item['minimum_version'] ) ) {
2587				$output[] = sprintf(
2588					'<p><span style="min-width: 32px; text-align: right; float: right;">%1$s</span>' . __( 'Minimum required version:', 'kreativ-pro' ) . '</p>',
2589					$item['minimum_version']
2590				);
2591			}
2592
2593			if ( ! empty( $item['available_version'] ) ) {
2594				$color = '';
2595				if ( ! empty( $item['minimum_version'] ) && version_compare( $item['available_version'], $item['minimum_version'], '>=' ) ) {
2596					$color = ' color: #71C671; font-weight: bold;';
2597				}
2598
2599				$output[] = sprintf(
2600					'<p><span style="min-width: 32px; text-align: right; float: right;%1$s">%2$s</span>' . __( 'Available version:', 'kreativ-pro' ) . '</p>',
2601					$color,
2602					$item['available_version']
2603				);
2604			}
2605
2606			if ( empty( $output ) ) {
2607				return '&nbsp;'; // Let's not break the table layout.
2608			} else {
2609				return implode( "\n", $output );
2610			}
2611		}
2612
2613		/**
2614		 * Sets default message within the plugins table if no plugins
2615		 * are left for interaction.
2616		 *
2617		 * Hides the menu item to prevent the user from clicking and
2618		 * getting a permissions error.
2619		 *
2620		 * @since 2.2.0
2621		 */
2622		public function no_items() {
2623			echo esc_html__( 'No plugins to install, update or activate.', 'kreativ-pro' ) . ' <a href="' . esc_url( self_admin_url() ) . '"> ' . esc_html__( 'Return to the Dashboard', 'kreativ-pro' ) . '</a>';
2624			echo '<style type="text/css">#adminmenu .wp-submenu li.current { display: none !important; }</style>';
2625		}
2626
2627		/**
2628		 * Output all the column information within the table.
2629		 *
2630		 * @since 2.2.0
2631		 *
2632		 * @return array $columns The column names.
2633		 */
2634		public function get_columns() {
2635			$columns = array(
2636				'cb'     => '<input type="checkbox" />',
2637				'plugin' => __( 'Plugin', 'kreativ-pro' ),
2638				'source' => __( 'Source', 'kreativ-pro' ),
2639				'type'   => __( 'Type', 'kreativ-pro' ),
2640			);
2641
2642			if ( 'all' === $this->view_context || 'update' === $this->view_context ) {
2643				$columns['version'] = __( 'Version', 'kreativ-pro' );
2644				$columns['status']  = __( 'Status', 'kreativ-pro' );
2645			}
2646
2647			return apply_filters( 'tgmpa_table_columns', $columns );
2648		}
2649
2650		/**
2651		 * Get name of default primary column
2652		 *
2653		 * @since 2.5.0 / WP 4.3+ compatibility
2654		 * @access protected
2655		 *
2656		 * @return string
2657		 */
2658		protected function get_default_primary_column_name() {
2659			return 'plugin';
2660		}
2661
2662		/**
2663		 * Get the name of the primary column.
2664		 *
2665		 * @since 2.5.0 / WP 4.3+ compatibility
2666		 * @access protected
2667		 *
2668		 * @return string The name of the primary column.
2669		 */
2670		protected function get_primary_column_name() {
2671			if ( method_exists( 'WP_List_Table', 'get_primary_column_name' ) ) {
2672				return parent::get_primary_column_name();
2673			} else {
2674				return $this->get_default_primary_column_name();
2675			}
2676		}
2677
2678		/**
2679		 * Get the actions which are relevant for a specific plugin row.
2680		 *
2681		 * @since 2.5.0
2682		 *
2683		 * @param array $item Array of item data.
2684		 * @return array Array with relevant action links.
2685		 */
2686		protected function get_row_actions( $item ) {
2687			$actions      = array();
2688			$action_links = array();
2689
2690			// Display the 'Install' action link if the plugin is not yet available.
2691			if ( ! $this->tgmpa->is_plugin_installed( $item['slug'] ) ) {
2692				/* translators: %2$s: plugin name in screen reader markup */
2693				$actions['install'] = __( 'Install %2$s', 'kreativ-pro' );
2694			} else {
2695				// Display the 'Update' action link if an update is available and WP complies with plugin minimum.
2696				if ( false !== $this->tgmpa->does_plugin_have_update( $item['slug'] ) && $this->tgmpa->can_plugin_update( $item['slug'] ) ) {
2697					/* translators: %2$s: plugin name in screen reader markup */
2698					$actions['update'] = __( 'Update %2$s', 'kreativ-pro' );
2699				}
2700
2701				// Display the 'Activate' action link, but only if the plugin meets the minimum version.
2702				if ( $this->tgmpa->can_plugin_activate( $item['slug'] ) ) {
2703					/* translators: %2$s: plugin name in screen reader markup */
2704					$actions['activate'] = __( 'Activate %2$s', 'kreativ-pro' );
2705				}
2706			}
2707
2708			// Create the actual links.
2709			foreach ( $actions as $action => $text ) {
2710				$nonce_url = wp_nonce_url(
2711					add_query_arg(
2712						array(
2713							'plugin'           => urlencode( $item['slug'] ),
2714							'tgmpa-' . $action => $action . '-plugin',
2715						),
2716						$this->tgmpa->get_tgmpa_url()
2717					),
2718					'tgmpa-' . $action,
2719					'tgmpa-nonce'
2720				);
2721
2722				$action_links[ $action ] = sprintf(
2723					'<a href="%1$s">' . esc_html( $text ) . '</a>', // $text contains the second placeholder.
2724					esc_url( $nonce_url ),
2725					'<span class="screen-reader-text">' . esc_html( $item['sanitized_plugin'] ) . '</span>'
2726				);
2727			}
2728
2729			$prefix = ( defined( 'WP_NETWORK_ADMIN' ) && WP_NETWORK_ADMIN ) ? 'network_admin_' : '';
2730			return apply_filters( "tgmpa_{$prefix}plugin_action_links", array_filter( $action_links ), $item['slug'], $item, $this->view_context );
2731		}
2732
2733		/**
2734		 * Generates content for a single row of the table.
2735		 *
2736		 * @since 2.5.0
2737		 *
2738		 * @param object $item The current item.
2739		 */
2740		public function single_row( $item ) {
2741			parent::single_row( $item );
2742
2743			/**
2744			 * Fires after each specific row in the TGMPA Plugins list table.
2745			 *
2746			 * The dynamic portion of the hook name, `$item['slug']`, refers to the slug
2747			 * for the plugin.
2748			 *
2749			 * @since 2.5.0
2750			 */
2751			do_action( "tgmpa_after_plugin_row_{$item['slug']}", $item['slug'], $item, $this->view_context );
2752		}
2753
2754		/**
2755		 * Show the upgrade notice below a plugin row if there is one.
2756		 *
2757		 * @since 2.5.0
2758		 *
2759		 * @see /wp-admin/includes/update.php
2760		 *
2761		 * @param string $slug Plugin slug.
2762		 * @param array  $item The information available in this table row.
2763		 * @return null Return early if upgrade notice is empty.
2764		 */
2765		public function wp_plugin_update_row( $slug, $item ) {
2766			if ( empty( $item['upgrade_notice'] ) ) {
2767				return;
2768			}
2769
2770			echo '
2771				<tr class="plugin-update-tr">
2772					<td colspan="', absint( $this->get_column_count() ), '" class="plugin-update colspanchange">
2773						<div class="update-message">',
2774							esc_html__( 'Upgrade message from the plugin author:', 'kreativ-pro' ),
2775							' <strong>', wp_kses_data( $item['upgrade_notice'] ), '</strong>
2776						</div>
2777					</td>
2778				</tr>';
2779		}
2780
2781		/**
2782		 * Extra controls to be displayed between bulk actions and pagination.
2783		 *
2784		 * @since 2.5.0
2785		 *
2786		 * @param string $which 'top' or 'bottom' table navigation.
2787		 */
2788		public function extra_tablenav( $which ) {
2789			if ( 'bottom' === $which ) {
2790				$this->tgmpa->show_tgmpa_version();
2791			}
2792		}
2793
2794		/**
2795		 * Defines the bulk actions for handling registered plugins.
2796		 *
2797		 * @since 2.2.0
2798		 *
2799		 * @return array $actions The bulk actions for the plugin install table.
2800		 */
2801		public function get_bulk_actions() {
2802
2803			$actions = array();
2804
2805			if ( 'update' !== $this->view_context && 'activate' !== $this->view_context ) {
2806				if ( current_user_can( 'install_plugins' ) ) {
2807					$actions['tgmpa-bulk-install'] = __( 'Install', 'kreativ-pro' );
2808				}
2809			}
2810
2811			if ( 'install' !== $this->view_context ) {
2812				if ( current_user_can( 'update_plugins' ) ) {
2813					$actions['tgmpa-bulk-update'] = __( 'Update', 'kreativ-pro' );
2814				}
2815				if ( current_user_can( 'activate_plugins' ) ) {
2816					$actions['tgmpa-bulk-activate'] = __( 'Activate', 'kreativ-pro' );
2817				}
2818			}
2819
2820			return $actions;
2821		}
2822
2823		/**
2824		 * Processes bulk installation and activation actions.
2825		 *
2826		 * The bulk installation process looks for the $_POST information and passes that
2827		 * through if a user has to use WP_Filesystem to enter their credentials.
2828		 *
2829		 * @since 2.2.0
2830		 */
2831		public function process_bulk_actions() {
2832			// Bulk installation process.
2833			if ( 'tgmpa-bulk-install' === $this->current_action() || 'tgmpa-bulk-update' === $this->current_action() ) {
2834
2835				check_admin_referer( 'bulk-' . $this->_args['plural'] );
2836
2837				$install_type = 'install';
2838				if ( 'tgmpa-bulk-update' === $this->current_action() ) {
2839					$install_type = 'update';
2840				}
2841
2842				$plugins_to_install = array();
2843
2844				// Did user actually select any plugins to install/update ?
2845				if ( empty( $_POST['plugin'] ) ) {
2846					if ( 'install' === $install_type ) {
2847						$message = __( 'No plugins were selected to be installed. No action taken.', 'kreativ-pro' );
2848					} else {
2849						$message = __( 'No plugins were selected to be updated. No action taken.', 'kreativ-pro' );
2850					}
2851
2852					echo '<div id="message" class="error"><p>', esc_html( $message ), '</p></div>';
2853
2854					return false;
2855				}
2856
2857				if ( is_array( $_POST['plugin'] ) ) {
2858					$plugins_to_install = (array) $_POST['plugin'];
2859				} elseif ( is_string( $_POST['plugin'] ) ) {
2860					// Received via Filesystem page - un-flatten array (WP bug #19643).
2861					$plugins_to_install = explode( ',', $_POST['plugin'] );
2862				}
2863
2864				// Sanitize the received input.
2865				$plugins_to_install = array_map( 'urldecode', $plugins_to_install );
2866				$plugins_to_install = array_map( array( $this->tgmpa, 'sanitize_key' ), $plugins_to_install );
2867
2868				// Validate the received input.
2869				foreach ( $plugins_to_install as $key => $slug ) {
2870					// Check if the plugin was registered with TGMPA and remove if not.
2871					if ( ! isset( $this->tgmpa->plugins[ $slug ] ) ) {
2872						unset( $plugins_to_install[ $key ] );
2873						continue;
2874					}
2875
2876					// For install: make sure this is a plugin we *can* install and not one already installed.
2877					if ( 'install' === $install_type && true === $this->tgmpa->is_plugin_installed( $slug ) ) {
2878						unset( $plugins_to_install[ $key ] );
2879					}
2880
2881					// For updates: make sure this is a plugin we *can* update (update available and WP version ok).
2882					if ( 'update' === $install_type && false === $this->tgmpa->is_plugin_updatetable( $slug ) ) {
2883						unset( $plugins_to_install[ $key ] );
2884					}
2885				}
2886
2887				// No need to proceed further if we have no plugins to handle.
2888				if ( empty( $plugins_to_install ) ) {
2889					if ( 'install' === $install_type ) {
2890						$message = __( 'No plugins are available to be installed at this time.', 'kreativ-pro' );
2891					} else {
2892						$message = __( 'No plugins are available to be updated at this time.', 'kreativ-pro' );
2893					}
2894
2895					echo '<div id="message" class="error"><p>', esc_html( $message ), '</p></div>';
2896
2897					return false;
2898				}
2899
2900				// Pass all necessary information if WP_Filesystem is needed.
2901				$url = wp_nonce_url(
2902					$this->tgmpa->get_tgmpa_url(),
2903					'bulk-' . $this->_args['plural']
2904				);
2905
2906				// Give validated data back to $_POST which is the only place the filesystem looks for extra fields.
2907				$_POST['plugin'] = implode( ',', $plugins_to_install ); // Work around for WP bug #19643.
2908
2909				$method = ''; // Leave blank so WP_Filesystem can populate it as necessary.
2910				$fields = array_keys( $_POST ); // Extra fields to pass to WP_Filesystem.
2911
2912				if ( false === ( $creds = request_filesystem_credentials( esc_url_raw( $url ), $method, false, false, $fields ) ) ) {
2913					return true; // Stop the normal page form from displaying, credential request form will be shown.
2914				}
2915
2916				// Now we have some credentials, setup WP_Filesystem.
2917				if ( ! WP_Filesystem( $creds ) ) {
2918					// Our credentials were no good, ask the user for them again.
2919					request_filesystem_credentials( esc_url_raw( $url ), $method, true, false, $fields );
2920
2921					return true;
2922				}
2923
2924				/* If we arrive here, we have the filesystem */
2925
2926				// Store all information in arrays since we are processing a bulk installation.
2927				$names      = array();
2928				$sources    = array(); // Needed for installs.
2929				$file_paths = array(); // Needed for upgrades.
2930				$to_inject  = array(); // Information to inject into the update_plugins transient.
2931
2932				// Prepare the data for validated plugins for the install/upgrade.
2933				foreach ( $plugins_to_install as $slug ) {
2934					$name   = $this->tgmpa->plugins[ $slug ]['name'];
2935					$source = $this->tgmpa->get_download_url( $slug );
2936
2937					if ( ! empty( $name ) && ! empty( $source ) ) {
2938						$names[] = $name;
2939
2940						switch ( $install_type ) {
2941
2942							case 'install':
2943								$sources[] = $source;
2944								break;
2945
2946							case 'update':
2947								$file_paths[]                 = $this->tgmpa->plugins[ $slug ]['file_path'];
2948								$to_inject[ $slug ]           = $this->tgmpa->plugins[ $slug ];
2949								$to_inject[ $slug ]['source'] = $source;
2950								break;
2951						}
2952					}
2953				}
2954				unset( $slug, $name, $source );
2955
2956				// Create a new instance of TGMPA_Bulk_Installer.
2957				$installer = new TGMPA_Bulk_Installer(
2958					new TGMPA_Bulk_Installer_Skin(
2959						array(
2960							'url'          => esc_url_raw( $this->tgmpa->get_tgmpa_url() ),
2961							'nonce'        => 'bulk-' . $this->_args['plural'],
2962							'names'        => $names,
2963							'install_type' => $install_type,
2964						)
2965					)
2966				);
2967
2968				// Wrap the install process with the appropriate HTML.
2969				echo '<div class="tgmpa">',
2970					'<h2 style="font-size: 23px; font-weight: 400; line-height: 29px; margin: 0; padding: 9px 15px 4px 0;">', esc_html( get_admin_page_title() ), '</h2>
2971					<div class="update-php" style="width: 100%; height: 98%; min-height: 850px; padding-top: 1px;">';
2972
2973				// Process the bulk installation submissions.
2974				add_filter( 'upgrader_source_selection', array( $this->tgmpa, 'maybe_adjust_source_dir' ), 1, 3 );
2975
2976				if ( 'tgmpa-bulk-update' === $this->current_action() ) {
2977					// Inject our info into the update transient.
2978					$this->tgmpa->inject_update_info( $to_inject );
2979
2980					$installer->bulk_upgrade( $file_paths );
2981				} else {
2982					$installer->bulk_install( $sources );
2983				}
2984
2985				remove_filter( 'upgrader_source_selection', array( $this->tgmpa, 'maybe_adjust_source_dir' ), 1 );
2986
2987				echo '</div></div>';
2988
2989				return true;
2990			}
2991
2992			// Bulk activation process.
2993			if ( 'tgmpa-bulk-activate' === $this->current_action() ) {
2994				check_admin_referer( 'bulk-' . $this->_args['plural'] );
2995
2996				// Did user actually select any plugins to activate ?
2997				if ( empty( $_POST['plugin'] ) ) {
2998					echo '<div id="message" class="error"><p>', esc_html__( 'No plugins were selected to be activated. No action taken.', 'kreativ-pro' ), '</p></div>';
2999
3000					return false;
3001				}
3002
3003				// Grab plugin data from $_POST.
3004				$plugins = array();
3005				if ( isset( $_POST['plugin'] ) ) {
3006					$plugins = array_map( 'urldecode', (array) $_POST['plugin'] );
3007					$plugins = array_map( array( $this->tgmpa, 'sanitize_key' ), $plugins );
3008				}
3009
3010				$plugins_to_activate = array();
3011				$plugin_names        = array();
3012
3013				// Grab the file paths for the selected & inactive plugins from the registration array.
3014				foreach ( $plugins as $slug ) {
3015					if ( $this->tgmpa->can_plugin_activate( $slug ) ) {
3016						$plugins_to_activate[] = $this->tgmpa->plugins[ $slug ]['file_path'];
3017						$plugin_names[]        = $this->tgmpa->plugins[ $slug ]['name'];
3018					}
3019				}
3020				unset( $slug );
3021
3022				// Return early if there are no plugins to activate.
3023				if ( empty( $plugins_to_activate ) ) {
3024					echo '<div id="message" class="error"><p>', esc_html__( 'No plugins are available to be activated at this time.', 'kreativ-pro' ), '</p></div>';
3025
3026					return false;
3027				}
3028
3029				// Now we are good to go - let's start activating plugins.
3030				$activate = activate_plugins( $plugins_to_activate );
3031
3032				if ( is_wp_error( $activate ) ) {
3033					echo '<div id="message" class="error"><p>', wp_kses_post( $activate->get_error_message() ), '</p></div>';
3034				} else {
3035					$count        = count( $plugin_names ); // Count so we can use _n function.
3036					$plugin_names = array_map( array( 'TGMPA_Utils', 'wrap_in_strong' ), $plugin_names );
3037					$last_plugin  = array_pop( $plugin_names ); // Pop off last name to prep for readability.
3038					$imploded     = empty( $plugin_names ) ? $last_plugin : ( implode( ', ', $plugin_names ) . ' ' . esc_html_x( 'and', 'plugin A *and* plugin B', 'kreativ-pro' ) . ' ' . $last_plugin );
3039
3040					printf( // WPCS: xss ok.
3041						'<div id="message" class="updated"><p>%1$s %2$s.</p></div>',
3042						esc_html( _n( 'The following plugin was activated successfully:', 'The following plugins were activated successfully:', $count, 'kreativ-pro' ) ),
3043						$imploded
3044					);
3045
3046					// Update recently activated plugins option.
3047					$recent = (array) get_option( 'recently_activated' );
3048					foreach ( $plugins_to_activate as $plugin => $time ) {
3049						if ( isset( $recent[ $plugin ] ) ) {
3050							unset( $recent[ $plugin ] );
3051						}
3052					}
3053					update_option( 'recently_activated', $recent );
3054				}
3055
3056				unset( $_POST ); // Reset the $_POST variable in case user wants to perform one action after another.
3057
3058				return true;
3059			}
3060
3061			return false;
3062		}
3063
3064		/**
3065		 * Prepares all of our information to be outputted into a usable table.
3066		 *
3067		 * @since 2.2.0
3068		 */
3069		public function prepare_items() {
3070			$columns               = $this->get_columns(); // Get all necessary column information.
3071			$hidden                = array(); // No columns to hide, but we must set as an array.
3072			$sortable              = array(); // No reason to make sortable columns.
3073			$primary               = $this->get_primary_column_name(); // Column which has the row actions.
3074			$this->_column_headers = array( $columns, $hidden, $sortable, $primary ); // Get all necessary column headers.
3075
3076			// Process our bulk activations here.
3077			if ( 'tgmpa-bulk-activate' === $this->current_action() ) {
3078				$this->process_bulk_actions();
3079			}
3080
3081			// Store all of our plugin data into $items array so WP_List_Table can use it.
3082			$this->items = apply_filters( 'tgmpa_table_data_items', $this->_gather_plugin_data() );
3083		}
3084
3085		/* *********** DEPRECATED METHODS *********** */
3086
3087		/**
3088		 * Retrieve plugin data, given the plugin name.
3089		 *
3090		 * @since      2.2.0
3091		 * @deprecated 2.5.0 use {@see TGM_Plugin_Activation::_get_plugin_data_from_name()} instead.
3092		 * @see        TGM_Plugin_Activation::_get_plugin_data_from_name()
3093		 *
3094		 * @param string $name Name of the plugin, as it was registered.
3095		 * @param string $data Optional. Array key of plugin data to return. Default is slug.
3096		 * @return string|boolean Plugin slug if found, false otherwise.
3097		 */
3098		protected function _get_plugin_data_from_name( $name, $data = 'slug' ) {
3099			_deprecated_function( __FUNCTION__, 'TGMPA 2.5.0', 'TGM_Plugin_Activation::_get_plugin_data_from_name()' );
3100
3101			return $this->tgmpa->_get_plugin_data_from_name( $name, $data );
3102		}
3103	}
3104}
3105
3106
3107if ( ! class_exists( 'TGM_Bulk_Installer' ) ) {
3108
3109	/**
3110	 * Hack: Prevent TGMPA v2.4.1- bulk installer class from being loaded if 2.4.1- is loaded after 2.5+.
3111	 *
3112	 * @since 2.5.2
3113	 *
3114	 * {@internal The TGMPA_Bulk_Installer class was originally called TGM_Bulk_Installer.
3115	 *            For more information, see that class.}}
3116	 */
3117	class TGM_Bulk_Installer {
3118	}
3119}
3120if ( ! class_exists( 'TGM_Bulk_Installer_Skin' ) ) {
3121
3122	/**
3123	 * Hack: Prevent TGMPA v2.4.1- bulk installer skin class from being loaded if 2.4.1- is loaded after 2.5+.
3124	 *
3125	 * @since 2.5.2
3126	 *
3127	 * {@internal The TGMPA_Bulk_Installer_Skin class was originally called TGM_Bulk_Installer_Skin.
3128	 *            For more information, see that class.}}
3129	 */
3130	class TGM_Bulk_Installer_Skin {
3131	}
3132}
3133
3134/**
3135 * The WP_Upgrader file isn't always available. If it isn't available,
3136 * we load it here.
3137 *
3138 * We check to make sure no action or activation keys are set so that WordPress
3139 * does not try to re-include the class when processing upgrades or installs outside
3140 * of the class.
3141 *
3142 * @since 2.2.0
3143 */
3144add_action( 'admin_init', 'tgmpa_load_bulk_installer' );
3145if ( ! function_exists( 'tgmpa_load_bulk_installer' ) ) {
3146	/**
3147	 * Load bulk installer
3148	 */
3149	function tgmpa_load_bulk_installer() {
3150		// Silently fail if 2.5+ is loaded *after* an older version.
3151		if ( ! isset( $GLOBALS['tgmpa'] ) ) {
3152			return;
3153		}
3154
3155		// Get TGMPA class instance.
3156		$tgmpa_instance = call_user_func( array( get_class( $GLOBALS['tgmpa'] ), 'get_instance' ) );
3157
3158		if ( isset( $_GET['page'] ) && $tgmpa_instance->menu === $_GET['page'] ) {
3159			if ( ! class_exists( 'Plugin_Upgrader', false ) ) {
3160				require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
3161			}
3162
3163			if ( ! class_exists( 'TGMPA_Bulk_Installer' ) ) {
3164
3165				/**
3166				 * Installer class to handle bulk plugin installations.
3167				 *
3168				 * Extends WP_Upgrader and customizes to suit the installation of multiple
3169				 * plugins.
3170				 *
3171				 * @since 2.2.0
3172				 *
3173				 * {@internal Since 2.5.0 the class is an extension of Plugin_Upgrader rather than WP_Upgrader.}}
3174				 * {@internal Since 2.5.2 the class has been renamed from TGM_Bulk_Installer to TGMPA_Bulk_Installer.
3175				 *            This was done to prevent backward compatibility issues with v2.3.6.}}
3176				 *
3177				 * @package TGM-Plugin-Activation
3178				 * @author  Thomas Griffin
3179				 * @author  Gary Jones
3180				 */
3181				class TGMPA_Bulk_Installer extends Plugin_Upgrader {
3182					/**
3183					 * Holds result of bulk plugin installation.
3184					 *
3185					 * @since 2.2.0
3186					 *
3187					 * @var string
3188					 */
3189					public $result;
3190
3191					/**
3192					 * Flag to check if bulk installation is occurring or not.
3193					 *
3194					 * @since 2.2.0
3195					 *
3196					 * @var boolean
3197					 */
3198					public $bulk = false;
3199
3200					/**
3201					 * TGMPA instance
3202					 *
3203					 * @since 2.5.0
3204					 *
3205					 * @var object
3206					 */
3207					protected $tgmpa;
3208
3209					/**
3210					 * Whether or not the destination directory needs to be cleared ( = on update).
3211					 *
3212					 * @since 2.5.0
3213					 *
3214					 * @var bool
3215					 */
3216					protected $clear_destination = false;
3217
3218					/**
3219					 * References parent constructor and sets defaults for class.
3220					 *
3221					 * @since 2.2.0
3222					 *
3223					 * @param \Bulk_Upgrader_Skin|null $skin Installer skin.
3224					 */
3225					public function __construct( $skin = null ) {
3226						// Get TGMPA class instance.
3227						$this->tgmpa = call_user_func( array( get_class( $GLOBALS['tgmpa'] ), 'get_instance' ) );
3228
3229						parent::__construct( $skin );
3230
3231						if ( isset( $this->skin->options['install_type'] ) && 'update' === $this->skin->options['install_type'] ) {
3232							$this->clear_destination = true;
3233						}
3234
3235						if ( $this->tgmpa->is_automatic ) {
3236							$this->activate_strings();
3237						}
3238
3239						add_action( 'upgrader_process_complete', array( $this->tgmpa, 'populate_file_path' ) );
3240					}
3241
3242					/**
3243					 * Sets the correct activation strings for the installer skin to use.
3244					 *
3245					 * @since 2.2.0
3246					 */
3247					public function activate_strings() {
3248						$this->strings['activation_failed']  = __( 'Plugin activation failed.', 'kreativ-pro' );
3249						$this->strings['activation_success'] = __( 'Plugin activated successfully.', 'kreativ-pro' );
3250					}
3251
3252					/**
3253					 * Performs the actual installation of each plugin.
3254					 *
3255					 * @since 2.2.0
3256					 *
3257					 * @see WP_Upgrader::run()
3258					 *
3259					 * @param array $options The installation config options.
3260					 * @return null|array Return early if error, array of installation data on success.
3261					 */
3262					public function run( $options ) {
3263						$result = parent::run( $options );
3264
3265						// Reset the strings in case we changed one during automatic activation.
3266						if ( $this->tgmpa->is_automatic ) {
3267							if ( 'update' === $this->skin->options['install_type'] ) {
3268								$this->upgrade_strings();
3269							} else {
3270								$this->install_strings();
3271							}
3272						}
3273
3274						return $result;
3275					}
3276
3277					/**
3278					 * Processes the bulk installation of plugins.
3279					 *
3280					 * @since 2.2.0
3281					 *
3282					 * {@internal This is basically a near identical copy of the WP Core
3283					 * Plugin_Upgrader::bulk_upgrade() method, with minor adjustments to deal with
3284					 * new installs instead of upgrades.
3285					 * For ease of future synchronizations, the adjustments are clearly commented, but no other
3286					 * comments are added. Code style has been made to comply.}}
3287					 *
3288					 * @see Plugin_Upgrader::bulk_upgrade()
3289					 * @see https://core.trac.wordpress.org/browser/tags/4.2.1/src/wp-admin/includes/class-wp-upgrader.php#L838
3290					 * (@internal Last synced: Dec 31st 2015 against https://core.trac.wordpress.org/browser/trunk?rev=36134}}
3291					 *
3292					 * @param array $plugins The plugin sources needed for installation.
3293					 * @param array $args    Arbitrary passed extra arguments.
3294					 * @return array|false   Install confirmation messages on success, false on failure.
3295					 */
3296					public function bulk_install( $plugins, $args = array() ) {
3297						// [TGMPA + ] Hook auto-activation in.
3298						add_filter( 'upgrader_post_install', array( $this, 'auto_activate' ), 10 );
3299
3300						$defaults    = array(
3301							'clear_update_cache' => true,
3302						);
3303						$parsed_args = wp_parse_args( $args, $defaults );
3304
3305						$this->init();
3306						$this->bulk = true;
3307
3308						$this->install_strings(); // [TGMPA + ] adjusted.
3309
3310						/* [TGMPA - ] $current = get_site_transient( 'update_plugins' ); */
3311
3312						/* [TGMPA - ] add_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'), 10, 4); */
3313
3314						$this->skin->header();
3315
3316						// Connect to the Filesystem first.
3317						$res = $this->fs_connect( array( WP_CONTENT_DIR, WP_PLUGIN_DIR ) );
3318						if ( ! $res ) {
3319							$this->skin->footer();
3320							return false;
3321						}
3322
3323						$this->skin->bulk_header();
3324
3325						/*
3326						 * Only start maintenance mode if:
3327						 * - running Multisite and there are one or more plugins specified, OR
3328						 * - a plugin with an update available is currently active.
3329						 * @TODO: For multisite, maintenance mode should only kick in for individual sites if at all possible.
3330						 */
3331						$maintenance = ( is_multisite() && ! empty( $plugins ) );
3332
3333						/*
3334						[TGMPA - ]
3335						foreach ( $plugins as $plugin )
3336							$maintenance = $maintenance || ( is_plugin_active( $plugin ) && isset( $current->response[ $plugin] ) );
3337						*/
3338						if ( $maintenance ) {
3339							$this->maintenance_mode( true );
3340						}
3341
3342						$results = array();
3343
3344						$this->update_count   = count( $plugins );
3345						$this->update_current = 0;
3346						foreach ( $plugins as $plugin ) {
3347							$this->update_current++;
3348
3349							/*
3350							[TGMPA - ]
3351							$this->skin->plugin_info = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin, false, true);
3352
3353							if ( !isset( $current->response[ $plugin ] ) ) {
3354								$this->skin->set_result('up_to_date');
3355								$this->skin->before();
3356								$this->skin->feedback('up_to_date');
3357								$this->skin->after();
3358								$results[$plugin] = true;
3359								continue;
3360							}
3361
3362							// Get the URL to the zip file.
3363							$r = $current->response[ $plugin ];
3364
3365							$this->skin->plugin_active = is_plugin_active($plugin);
3366							*/
3367
3368							$result = $this->run(
3369								array(
3370									'package'           => $plugin, // [TGMPA + ] adjusted.
3371									'destination'       => WP_PLUGIN_DIR,
3372									'clear_destination' => false, // [TGMPA + ] adjusted.
3373									'clear_working'     => true,
3374									'is_multi'          => true,
3375									'hook_extra'        => array(
3376										'plugin' => $plugin,
3377									),
3378								)
3379							);
3380
3381							$results[ $plugin ] = $this->result;
3382
3383							// Prevent credentials auth screen from displaying multiple times.
3384							if ( false === $result ) {
3385								break;
3386							}
3387						} //end foreach $plugins
3388
3389						$this->maintenance_mode( false );
3390
3391						/**
3392						 * Fires when the bulk upgrader process is complete.
3393						 *
3394						 * @since WP 3.6.0 / TGMPA 2.5.0
3395						 *
3396						 * @param Plugin_Upgrader $this Plugin_Upgrader instance. In other contexts, $this, might
3397						 *                              be a Theme_Upgrader or Core_Upgrade instance.
3398						 * @param array           $data {
3399						 *     Array of bulk item update data.
3400						 *
3401						 *     @type string $action   Type of action. Default 'update'.
3402						 *     @type string $type     Type of update process. Accepts 'plugin', 'theme', or 'core'.
3403						 *     @type bool   $bulk     Whether the update process is a bulk update. Default true.
3404						 *     @type array  $packages Array of plugin, theme, or core packages to update.
3405						 * }
3406						 */
3407						do_action( 'upgrader_process_complete', $this, array(
3408							'action'  => 'install', // [TGMPA + ] adjusted.
3409							'type'    => 'plugin',
3410							'bulk'    => true,
3411							'plugins' => $plugins,
3412						) );
3413
3414						$this->skin->bulk_footer();
3415
3416						$this->skin->footer();
3417
3418						// Cleanup our hooks, in case something else does a upgrade on this connection.
3419						/* [TGMPA - ] remove_filter('upgrader_clear_destination', array($this, 'delete_old_plugin')); */
3420
3421						// [TGMPA + ] Remove our auto-activation hook.
3422						remove_filter( 'upgrader_post_install', array( $this, 'auto_activate' ), 10 );
3423
3424						// Force refresh of plugin update information.
3425						wp_clean_plugins_cache( $parsed_args['clear_update_cache'] );
3426
3427						return $results;
3428					}
3429
3430					/**
3431					 * Handle a bulk upgrade request.
3432					 *
3433					 * @since 2.5.0
3434					 *
3435					 * @see Plugin_Upgrader::bulk_upgrade()
3436					 *
3437					 * @param array $plugins The local WP file_path's of the plugins which should be upgraded.
3438					 * @param array $args    Arbitrary passed extra arguments.
3439					 * @return string|bool Install confirmation messages on success, false on failure.
3440					 */
3441					public function bulk_upgrade( $plugins, $args = array() ) {
3442
3443						add_filter( 'upgrader_post_install', array( $this, 'auto_activate' ), 10 );
3444
3445						$result = parent::bulk_upgrade( $plugins, $args );
3446
3447						remove_filter( 'upgrader_post_install', array( $this, 'auto_activate' ), 10 );
3448
3449						return $result;
3450					}
3451
3452					/**
3453					 * Abuse a filter to auto-activate plugins after installation.
3454					 *
3455					 * Hooked into the 'upgrader_post_install' filter hook.
3456					 *
3457					 * @since 2.5.0
3458					 *
3459					 * @param bool $bool The value we need to give back (true).
3460					 * @return bool
3461					 */
3462					public function auto_activate( $bool ) {
3463						// Only process the activation of installed plugins if the automatic flag is set to true.
3464						if ( $this->tgmpa->is_automatic ) {
3465							// Flush plugins cache so the headers of the newly installed plugins will be read correctly.
3466							wp_clean_plugins_cache();
3467
3468							// Get the installed plugin file.
3469							$plugin_info = $this->plugin_info();
3470
3471							// Don't try to activate on upgrade of active plugin as WP will do this already.
3472							if ( ! is_plugin_active( $plugin_info ) ) {
3473								$activate = activate_plugin( $plugin_info );
3474
3475								// Adjust the success string based on the activation result.
3476								$this->strings['process_success'] = $this->strings['process_success'] . "<br />\n";
3477
3478								if ( is_wp_error( $activate ) ) {
3479									$this->skin->error( $activate );
3480									$this->strings['process_success'] .= $this->strings['activation_failed'];
3481								} else {
3482									$this->strings['process_success'] .= $this->strings['activation_success'];
3483								}
3484							}
3485						}
3486
3487						return $bool;
3488					}
3489				}
3490			}
3491
3492			if ( ! class_exists( 'TGMPA_Bulk_Installer_Skin' ) ) {
3493
3494				/**
3495				 * Installer skin to set strings for the bulk plugin installations..
3496				 *
3497				 * Extends Bulk_Upgrader_Skin and customizes to suit the installation of multiple
3498				 * plugins.
3499				 *
3500				 * @since 2.2.0
3501				 *
3502				 * {@internal Since 2.5.2 the class has been renamed from TGM_Bulk_Installer_Skin to
3503				 *            TGMPA_Bulk_Installer_Skin.
3504				 *            This was done to prevent backward compatibility issues with v2.3.6.}}
3505				 *
3506				 * @see https://core.trac.wordpress.org/browser/trunk/src/wp-admin/includes/class-wp-upgrader-skins.php
3507				 *
3508				 * @package TGM-Plugin-Activation
3509				 * @author  Thomas Griffin
3510				 * @author  Gary Jones
3511				 */
3512				class TGMPA_Bulk_Installer_Skin extends Bulk_Upgrader_Skin {
3513					/**
3514					 * Holds plugin info for each individual plugin installation.
3515					 *
3516					 * @since 2.2.0
3517					 *
3518					 * @var array
3519					 */
3520					public $plugin_info = array();
3521
3522					/**
3523					 * Holds names of plugins that are undergoing bulk installations.
3524					 *
3525					 * @since 2.2.0
3526					 *
3527					 * @var array
3528					 */
3529					public $plugin_names = array();
3530
3531					/**
3532					 * Integer to use for iteration through each plugin installation.
3533					 *
3534					 * @since 2.2.0
3535					 *
3536					 * @var integer
3537					 */
3538					public $i = 0;
3539
3540					/**
3541					 * TGMPA instance
3542					 *
3543					 * @since 2.5.0
3544					 *
3545					 * @var object
3546					 */
3547					protected $tgmpa;
3548
3549					/**
3550					 * Constructor. Parses default args with new ones and extracts them for use.
3551					 *
3552					 * @since 2.2.0
3553					 *
3554					 * @param array $args Arguments to pass for use within the class.
3555					 */
3556					public function __construct( $args = array() ) {
3557						// Get TGMPA class instance.
3558						$this->tgmpa = call_user_func( array( get_class( $GLOBALS['tgmpa'] ), 'get_instance' ) );
3559
3560						// Parse default and new args.
3561						$defaults = array(
3562							'url'          => '',
3563							'nonce'        => '',
3564							'names'        => array(),
3565							'install_type' => 'install',
3566						);
3567						$args     = wp_parse_args( $args, $defaults );
3568
3569						// Set plugin names to $this->plugin_names property.
3570						$this->plugin_names = $args['names'];
3571
3572						// Extract the new args.
3573						parent::__construct( $args );
3574					}
3575
3576					/**
3577					 * Sets install skin strings for each individual plugin.
3578					 *
3579					 * Checks to see if the automatic activation flag is set and uses the
3580					 * the proper strings accordingly.
3581					 *
3582					 * @since 2.2.0
3583					 */
3584					public function add_strings() {
3585						if ( 'update' === $this->options['install_type'] ) {
3586							parent::add_strings();
3587							/* translators: 1: plugin name, 2: action number 3: total number of actions. */
3588							$this->upgrader->strings['skin_before_update_header'] = __( 'Updating Plugin %1$s (%2$d/%3$d)', 'kreativ-pro' );
3589						} else {
3590							/* translators: 1: plugin name, 2: error message. */
3591							$this->upgrader->strings['skin_update_failed_error'] = __( 'An error occurred while installing %1$s: <strong>%2$s</strong>.', 'kreativ-pro' );
3592							/* translators: 1: plugin name. */
3593							$this->upgrader->strings['skin_update_failed'] = __( 'The installation of %1$s failed.', 'kreativ-pro' );
3594
3595							if ( $this->tgmpa->is_automatic ) {
3596								// Automatic activation strings.
3597								$this->upgrader->strings['skin_upgrade_start'] = __( 'The installation and activation process is starting. This process may take a while on some hosts, so please be patient.', 'kreativ-pro' );
3598								/* translators: 1: plugin name. */
3599								$this->upgrader->strings['skin_update_successful'] = __( '%1$s installed and activated successfully.', 'kreativ-pro' ) . ' <a href="#" class="hide-if-no-js" onclick="%2$s"><span>' . esc_html__( 'Show Details', 'kreativ-pro' ) . '</span><span class="hidden">' . esc_html__( 'Hide Details', 'kreativ-pro' ) . '</span>.</a>';
3600								$this->upgrader->strings['skin_upgrade_end']       = __( 'All installations and activations have been completed.', 'kreativ-pro' );
3601								/* translators: 1: plugin name, 2: action number 3: total number of actions. */
3602								$this->upgrader->strings['skin_before_update_header'] = __( 'Installing and Activating Plugin %1$s (%2$d/%3$d)', 'kreativ-pro' );
3603							} else {
3604								// Default installation strings.
3605								$this->upgrader->strings['skin_upgrade_start'] = __( 'The installation process is starting. This process may take a while on some hosts, so please be patient.', 'kreativ-pro' );
3606								/* translators: 1: plugin name. */
3607								$this->upgrader->strings['skin_update_successful'] = esc_html__( '%1$s installed successfully.', 'kreativ-pro' ) . ' <a href="#" class="hide-if-no-js" onclick="%2$s"><span>' . esc_html__( 'Show Details', 'kreativ-pro' ) . '</span><span class="hidden">' . esc_html__( 'Hide Details', 'kreativ-pro' ) . '</span>.</a>';
3608								$this->upgrader->strings['skin_upgrade_end']       = __( 'All installations have been completed.', 'kreativ-pro' );
3609								/* translators: 1: plugin name, 2: action number 3: total number of actions. */
3610								$this->upgrader->strings['skin_before_update_header'] = __( 'Installing Plugin %1$s (%2$d/%3$d)', 'kreativ-pro' );
3611							}
3612						}
3613					}
3614
3615					/**
3616					 * Outputs the header strings and necessary JS before each plugin installation.
3617					 *
3618					 * @since 2.2.0
3619					 *
3620					 * @param string $title Unused in this implementation.
3621					 */
3622					public function before( $title = '' ) {
3623						if ( empty( $title ) ) {
3624							$title = esc_html( $this->plugin_names[ $this->i ] );
3625						}
3626						parent::before( $title );
3627					}
3628
3629					/**
3630					 * Outputs the footer strings and necessary JS after each plugin installation.
3631					 *
3632					 * Checks for any errors and outputs them if they exist, else output
3633					 * success strings.
3634					 *
3635					 * @since 2.2.0
3636					 *
3637					 * @param string $title Unused in this implementation.
3638					 */
3639					public function after( $title = '' ) {
3640						if ( empty( $title ) ) {
3641							$title = esc_html( $this->plugin_names[ $this->i ] );
3642						}
3643						parent::after( $title );
3644
3645						$this->i++;
3646					}
3647
3648					/**
3649					 * Outputs links after bulk plugin installation is complete.
3650					 *
3651					 * @since 2.2.0
3652					 */
3653					public function bulk_footer() {
3654						// Serve up the string to say installations (and possibly activations) are complete.
3655						parent::bulk_footer();
3656
3657						// Flush plugins cache so we can make sure that the installed plugins list is always up to date.
3658						wp_clean_plugins_cache();
3659
3660						$this->tgmpa->show_tgmpa_version();
3661
3662						// Display message based on if all plugins are now active or not.
3663						$update_actions = array();
3664
3665						if ( $this->tgmpa->is_tgmpa_complete() ) {
3666							// All plugins are active, so we display the complete string and hide the menu to protect users.
3667							echo '<style type="text/css">#adminmenu .wp-submenu li.current { display: none !important; }</style>';
3668							$update_actions['dashboard'] = sprintf(
3669								esc_html( $this->tgmpa->strings['complete'] ),
3670								'<a href="' . esc_url( self_admin_url() ) . '">' . esc_html__( 'Return to the Dashboard', 'kreativ-pro' ) . '</a>'
3671							);
3672						} else {
3673							$update_actions['tgmpa_page'] = '<a href="' . esc_url( $this->tgmpa->get_tgmpa_url() ) . '" target="_parent">' . esc_html( $this->tgmpa->strings['return'] ) . '</a>';
3674						}
3675
3676						/**
3677						 * Filter the list of action links available following bulk plugin installs/updates.
3678						 *
3679						 * @since 2.5.0
3680						 *
3681						 * @param array $update_actions Array of plugin action links.
3682						 * @param array $plugin_info    Array of information for the last-handled plugin.
3683						 */
3684						$update_actions = apply_filters( 'tgmpa_update_bulk_plugins_complete_actions', $update_actions, $this->plugin_info );
3685
3686						if ( ! empty( $update_actions ) ) {
3687							$this->feedback( implode( ' | ', (array) $update_actions ) );
3688						}
3689					}
3690
3691					/* *********** DEPRECATED METHODS *********** */
3692
3693					/**
3694					 * Flush header output buffer.
3695					 *
3696					 * @since      2.2.0
3697					 * @deprecated 2.5.0 use {@see Bulk_Upgrader_Skin::flush_output()} instead
3698					 * @see        Bulk_Upgrader_Skin::flush_output()
3699					 */
3700					public function before_flush_output() {
3701						_deprecated_function( __FUNCTION__, 'TGMPA 2.5.0', 'Bulk_Upgrader_Skin::flush_output()' );
3702						$this->flush_output();
3703					}
3704
3705					/**
3706					 * Flush footer output buffer and iterate $this->i to make sure the
3707					 * installation strings reference the correct plugin.
3708					 *
3709					 * @since      2.2.0
3710					 * @deprecated 2.5.0 use {@see Bulk_Upgrader_Skin::flush_output()} instead
3711					 * @see        Bulk_Upgrader_Skin::flush_output()
3712					 */
3713					public function after_flush_output() {
3714						_deprecated_function( __FUNCTION__, 'TGMPA 2.5.0', 'Bulk_Upgrader_Skin::flush_output()' );
3715						$this->flush_output();
3716						$this->i++;
3717					}
3718				}
3719			}
3720		}
3721	}
3722}
3723
3724if ( ! class_exists( 'TGMPA_Utils' ) ) {
3725
3726	/**
3727	 * Generic utilities for TGMPA.
3728	 *
3729	 * All methods are static, poor-dev name-spacing class wrapper.
3730	 *
3731	 * Class was called TGM_Utils in 2.5.0 but renamed TGMPA_Utils in 2.5.1 as this was conflicting with Soliloquy.
3732	 *
3733	 * @since 2.5.0
3734	 *
3735	 * @package TGM-Plugin-Activation
3736	 * @author  Juliette Reinders Folmer
3737	 */
3738	class TGMPA_Utils {
3739		/**
3740		 * Whether the PHP filter extension is enabled.
3741		 *
3742		 * @see http://php.net/book.filter
3743		 *
3744		 * @since 2.5.0
3745		 *
3746		 * @static
3747		 *
3748		 * @var bool $has_filters True is the extension is enabled.
3749		 */
3750		public static $has_filters;
3751
3752		/**
3753		 * Wrap an arbitrary string in <em> tags. Meant to be used in combination with array_map().
3754		 *
3755		 * @since 2.5.0
3756		 *
3757		 * @static
3758		 *
3759		 * @param string $string Text to be wrapped.
3760		 * @return string
3761		 */
3762		public static function wrap_in_em( $string ) {
3763			return '<em>' . wp_kses_post( $string ) . '</em>';
3764		}
3765
3766		/**
3767		 * Wrap an arbitrary string in <strong> tags. Meant to be used in combination with array_map().
3768		 *
3769		 * @since 2.5.0
3770		 *
3771		 * @static
3772		 *
3773		 * @param string $string Text to be wrapped.
3774		 * @return string
3775		 */
3776		public static function wrap_in_strong( $string ) {
3777			return '<strong>' . wp_kses_post( $string ) . '</strong>';
3778		}
3779
3780		/**
3781		 * Helper function: Validate a value as boolean
3782		 *
3783		 * @since 2.5.0
3784		 *
3785		 * @static
3786		 *
3787		 * @param mixed $value Arbitrary value.
3788		 * @return bool
3789		 */
3790		public static function validate_bool( $value ) {
3791			if ( ! isset( self::$has_filters ) ) {
3792				self::$has_filters = extension_loaded( 'filter' );
3793			}
3794
3795			if ( self::$has_filters ) {
3796				return filter_var( $value, FILTER_VALIDATE_BOOLEAN );
3797			} else {
3798				return self::emulate_filter_bool( $value );
3799			}
3800		}
3801
3802		/**
3803		 * Helper function: Cast a value to bool
3804		 *
3805		 * @since 2.5.0
3806		 *
3807		 * @static
3808		 *
3809		 * @param mixed $value Value to cast.
3810		 * @return bool
3811		 */
3812		protected static function emulate_filter_bool( $value ) {
3813			// @codingStandardsIgnoreStart
3814			static $true  = array(
3815				'1',
3816				'true', 'True', 'TRUE',
3817				'y', 'Y',
3818				'yes', 'Yes', 'YES',
3819				'on', 'On', 'ON',
3820			);
3821			static $false = array(
3822				'0',
3823				'false', 'False', 'FALSE',
3824				'n', 'N',
3825				'no', 'No', 'NO',
3826				'off', 'Off', 'OFF',
3827			);
3828			// @codingStandardsIgnoreEnd
3829
3830			if ( is_bool( $value ) ) {
3831				return $value;
3832			} elseif ( is_int( $value ) && ( 0 === $value || 1 === $value ) ) {
3833				return (bool) $value;
3834			} elseif ( ( is_float( $value ) && ! is_nan( $value ) ) && ( (float) 0 === $value || (float) 1 === $value ) ) {
3835				return (bool) $value;
3836			} elseif ( is_string( $value ) ) {
3837				$value = trim( $value );
3838				if ( in_array( $value, $true, true ) ) {
3839					return true;
3840				} elseif ( in_array( $value, $false, true ) ) {
3841					return false;
3842				} else {
3843					return false;
3844				}
3845			}
3846
3847			return false;
3848		}
3849	} // End of class TGMPA_Utils
3850} // End of class_exists wrapper