email-subscribers / email-subscribers.php

email-subscribers.php in Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress trunk, at email-subscribers.php

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1	<?php
2	/**
3	* Plugin Name: Icegram Express - Email Subscribers, Newsletters and Marketing Automation Plugin
4	* Plugin URI: https://www.icegram.com/
5	* Description: Add subscription forms on website, send HTML newsletters & automatically notify subscribers about new blog posts once it is published.
6	* Version: 5.9.34
7	* Author: Icegram
8	* Author URI: https://www.icegram.com/
9	* Requires at least: 3.9
10	* Tested up to: 7.0
11	* WC requires at least: 3.6.0
12	* WC tested up to: 8.0.2
13	* ES Woo: 7120515:9f4c7f8bb491260ef19edf9699db73e6
14	* Requires PHP: 7.0
15	* Text Domain: email-subscribers
16	* Domain Path: /lite/languages/
17	* License: GPLv3
18	* License URI: http://www.gnu.org/licenses/gpl-3.0.html
19	* Copyright (c) 2016-2022 Icegram
20	*/
21
22	// If this file is called directly, abort.
23	if ( ! defined( 'WPINC' ) ) {
24	die;
25	}
26
27	/**
28	* Minimum PHP version required for Icegram Express
29	*
30	* @since 4.4.1
31	*
32	* @since 4.4.3 Added if not already defined() check.
33	*/
34	if ( ! defined( 'IG_ES_MIN_PHP_VER' ) ) {
35	define( 'IG_ES_MIN_PHP_VER', '7.0' );
36	}
37
38	if ( ! function_exists( 'ig_es_fail_php_version_notice' ) ) {
39
40	/**
41	* Icegram Express admin notice for minimum PHP version.
42	*
43	* Warning when the site doesn't have the minimum required PHP version.
44	*
45	* @return void
46	* @since 4.4.1
47	*/
48	function ig_es_fail_php_version_notice() {
49	/* translators: %s: PHP version */
50	$message = sprintf( esc_html__( 'Icegram Express requires PHP version %s+, plugin is currently NOT RUNNING.', 'email-subscribers' ), IG_ES_MIN_PHP_VER );
51	$html_message = sprintf( '<div class="error">%s</div>', wpautop( $message ) );
52	echo wp_kses_post( $html_message );
53	}
54	}
55
56	if ( ! version_compare( PHP_VERSION, IG_ES_MIN_PHP_VER, '>=' ) ) {
57	add_action( 'admin_notices', 'ig_es_fail_php_version_notice' );
58	return;
59	}
60
61	/**
62	* Earlier we were using IG_ES_FEEDBACK_VERSION constant
63	* We have made some changes into 1.0.11 which we want to use.
64	* So, avoid conflicts, we have define new constant
65	* Now onward, we will use this constant
66	*
67	* @since 4.3.0
68	*/
69	if ( ! defined( 'IG_ES_FEEDBACK_TRACKER_VERSION' ) ) {
70	define( 'IG_ES_FEEDBACK_TRACKER_VERSION', '1.2.12' );
71	}
72
73	if ( ! defined( 'IG_ES_TRACKER_VERSION' ) ) {
74	define( 'IG_ES_TRACKER_VERSION', '1.2.6' );
75	}
76
77	if ( ! defined( 'IG_ES_PLUGIN_USAGE_TRACKER_VERSION' ) ) {
78	define( 'IG_ES_PLUGIN_USAGE_TRACKER_VERSION', '1.0.0' );
79	}
80
81	global $ig_es_tracker;
82
83	/**
84	* WordPress version
85	*
86	* @since 4.4.2
87	*/
88	global $wp_version;
89
90
91	/* *************************** Initial Compatibility Work (Start) ***************** */
92
93	/* =========== Do not edit this code unless you know what you are doing ========= */
94
95	/*
96	* Note: We are not using ES_PLUGIN_DIR constant at this moment because there are chances
97	* It might be defined from older version of ES
98	*/
99	require plugin_dir_path( __FILE__ ) . 'lite/includes/feedback/class-ig-tracker.php';
100	$ig_es_tracker = 'IG_Tracker_V_' . str_replace( '.', '_', IG_ES_TRACKER_VERSION );
101
102	if ( ! function_exists( 'ig_es_show_upgrade_pro_notice' ) ) {
103	/**
104	* Show ES Premium Upgrade Notice
105	*
106	* @since 4.3.0
107	*/
108	function ig_es_show_upgrade_pro_notice() {
109	$url = admin_url( 'plugins.php?plugin_status=upgrade' );
110	?>
111	<div class="notice notice-error">
112	<p>
113	<?php
114	echo wp_kses_post(
115	sprintf(
116	/* translators: %s: Link to Icegram Express Premium upgrade */
117	__( 'You are using older version of <strong>Icegram Express Premium</strong> plugin. It won\'t work because it needs plugin to be updated. Please update %s plugin.', 'email-subscribers' ),
118	'<a href="' . esc_url( $url ) . '" target="_blank">' . __( 'Icegram Express Premium', 'email-subscribers' ) . '</a>'
119	)
120	);
121	?>
122	</p>
123	</div>
124	<?php
125	}
126	}
127
128	if ( ! function_exists( 'deactivate_plugins' ) ) {
129	require_once ABSPATH . 'wp-admin/includes/plugin.php';
130	}
131
132	$ig_es_plan = 'lite';
133	if ( 'email-subscribers-premium.php' === basename( __FILE__ ) ) {
134	$ig_es_plan = 'premium';
135	} elseif ( 'icegram-marketing-automation.php' === basename( __FILE__ ) ) {
136	$ig_es_plan = 'woo';
137	}
138
139	$current_active_plugins = $ig_es_tracker::get_active_plugins();
140
141	if ( 'premium' === $ig_es_plan ) {
142	// We don't need ES Lite version As we are already running ES Premium 4.3.0+
143	// which includes ES Lite code.
144	// So, deactivate it
145	deactivate_plugins( 'email-subscribers/email-subscribers.php', true );
146	} elseif ( 'woo' === $ig_es_plan ) {
147	$plugins_to_deactivate = array(
148	'email-subscribers/email-subscribers.php',
149	'email-subscribers-premium/email-subscribers-premium.php',
150	);
151	foreach ( $plugins_to_deactivate as $plugin_slug ) {
152	if ( in_array( $plugin_slug, $current_active_plugins, true ) ) {
153	deactivate_plugins( $plugin_slug, true );
154	}
155	}
156	} else {
157	/**
158	* Steps:
159	* - Check Whether ES Premium Installed
160	* - If It's installed & It's < 4.3.0 => Show Upgrade Notice
161	* - If It's installed & It's >= 4.3.0 => return
162	*/
163
164	// - If It's installed & It's < 4.3.0 => Show Upgrade Notice
165	$all_plugins = $ig_es_tracker::get_plugins( 'all', true );
166
167	$es_pro_plugin = 'email-subscribers-premium/email-subscribers-premium.php';
168	$es_pro_plugin_version = ! empty( $all_plugins[ $es_pro_plugin ] ) ? $all_plugins[ $es_pro_plugin ]['version'] : '';
169
170	if ( ! empty( $es_pro_plugin_version ) ) {
171
172	// Is Pro active?
173	$is_pro_active = $all_plugins[ $es_pro_plugin ]['is_active'];
174
175	// Free >= 4.3.0 && Pro < 4.3.0
176	if ( version_compare( $es_pro_plugin_version, 4.3, '<' ) ) {
177
178	// Show Upgrade Notice if It's Admin Screen.
179	if ( is_admin() ) {
180	add_action( 'admin_head', 'ig_es_show_upgrade_pro_notice', PHP_INT_MAX );
181	}
182	} elseif ( $is_pro_active && version_compare( $es_pro_plugin_version, 4.3, '>=' ) ) {
183	return;
184	}
185	}
186	}
187	/* *************************** Initial Compatibility Work (End) ***************** */
188
189	if ( ! defined( 'ES_PLUGIN_VERSION' ) ) {
190	define( 'ES_PLUGIN_VERSION', '5.9.34' );
191	}
192
193	// Plugin Folder Path.
194	if ( ! defined( 'ES_PLUGIN_DIR' ) ) {
195	define( 'ES_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
196	}
197
198	if ( ! defined( 'ES_PLUGIN_BASE_NAME' ) ) {
199	define( 'ES_PLUGIN_BASE_NAME', plugin_basename( __FILE__ ) );
200	}
201
202	if ( ! defined( 'ES_PLUGIN_FILE' ) ) {
203	define( 'ES_PLUGIN_FILE', __FILE__ );
204	}
205
206	if ( ! defined( 'ES_PLUGIN_URL' ) ) {
207	define( 'ES_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
208	}
209
210	if ( ! defined( 'ES_IMG_URL' ) ) {
211	define( 'ES_IMG_URL', ES_PLUGIN_URL . 'lite/admin/images/' );
212	}
213
214	// Start-IG-Code.
215	if ( ! defined( 'IG_ES_PLUGIN_PLAN' ) ) {
216	define( 'IG_ES_PLUGIN_PLAN', 'lite' );
217	}
218	// End-IG-Code.
219	// Start-Woo-Code.
220	if ( ! defined( 'IG_ES_PLUGIN_PLAN' ) ) {
221	define( 'IG_ES_PLUGIN_PLAN', 'woo' );
222	}
223
224	add_action( 'before_woocommerce_init', function() {
225	if ( class_exists( \Automattic\WooCommerce\Utilities\FeaturesUtil::class ) ) {
226	\Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility( 'custom_order_tables', __FILE__, true );
227	}
228	} );
229
230	if ( ! function_exists( 'ig_es_woocommerce_inactive_notice' ) ) {
231
232	/**
233	* Icegram Express admin notice when WooCommerce is in inactive.
234	*
235	* @return void
236	* @since 4.6.1
237	*/
238	function ig_es_woocommerce_inactive_notice() {
239	$message = esc_html__( 'Icegram Express requires WooCommerce to be installed and active, plugin is currently NOT RUNNING.', 'email-subscribers' );
240	$html_message = sprintf( '<div class="error">%s</div>', wpautop( $message ) );
241	echo wp_kses_post( $html_message );
242	}
243	}
244
245	/*
246	* Check if WooCommerce is active. Show notice if not active.
247	*/
248
249	if ( 'woo' === IG_ES_PLUGIN_PLAN && ! in_array( 'woocommerce/woocommerce.php', $current_active_plugins, true ) ) {
250	add_action( 'admin_notices', 'ig_es_woocommerce_inactive_notice' );
251	// Disable all other functionality.
252	return;
253	}
254	// End-Woo-Code.
255	if ( ! function_exists( 'activate_email_subscribers' ) ) {
256	/**
257	* The code that runs during plugin activation.
258	* This action is documented in includes/class-email-subscribers-activator.php
259	*
260	* @param bool $network_wide Is plugin being activated on a network.
261	*/
262	function activate_email_subscribers( $network_wide ) {
263
264	global $wpdb;
265
266	require_once ES_PLUGIN_DIR . 'lite/includes/class-email-subscribers-activator.php';
267
268	if ( is_multisite() && $network_wide ) {
269
270	// Get all active blogs in the network and activate plugin on each one
271	// phpcs:disable
272	$blog_ids = $wpdb->get_col( $wpdb->prepare( "SELECT blog_id FROM $wpdb->blogs WHERE deleted = %d", 0 ) );
273	// phpcs:enable
274	foreach ( $blog_ids as $blog_id ) {
275	ig_es_activate_on_blog( $blog_id );
276	}
277	} else {
278	Email_Subscribers_Activator::activate();
279	add_option( 'email_subscribers_do_activation_redirect', true );
280	}
281	}
282	}
283
284	if ( ! function_exists( 'deactivate_email_subscribers' ) ) {
285	/**
286	* The code that runs during plugin deactivation.
287	* This action is documented in includes/class-email-subscribers-deactivator.php
288	*
289	* @param bool $network_wide Is plugin being activated on a network.
290	*/
291	function deactivate_email_subscribers( $network_wide ) {
292
293	require_once ES_PLUGIN_DIR . 'lite/includes/class-email-subscribers-deactivator.php';
294
295	if ( is_multisite() && $network_wide ) {
296
297	global $wpdb;
298
299	// Get all active blogs in the network.
300	// phpcs:disable
301	$blog_ids = $wpdb->get_col( $wpdb->prepare( "SELECT blog_id FROM $wpdb->blogs WHERE deleted = %d", 0 ) );
302	// phpcs:enable
303	foreach ( $blog_ids as $blog_id ) {
304	// Run deactivation code on each one
305	ig_es_trigger_deactivation_in_multisite( $blog_id );
306	}
307	} else {
308	Email_Subscribers_Deactivator::deactivate();
309	}
310	}
311	}
312
313	register_activation_hook( __FILE__, 'activate_email_subscribers' );
314	register_deactivation_hook( __FILE__, 'deactivate_email_subscribers' );
315
316	if ( ! function_exists( 'ig_es_may_activate_on_blog' ) ) {
317
318	/**
319	* Function to handle new blog(site) creation/activation in WP Multisite
320	*
321	* @param int $blog_id Blog ID of new site.
322	*
323	* @since 4.4.2
324	*/
325	function ig_es_may_activate_on_blog( $blog_id ) {
326
327	// In WP > WP 5.1.0 WP_Site object is passed instead of blog_id.
328	if ( $blog_id instanceof WP_Site ) {
329	$blog_id = (int) $blog_id->blog_id;
330	}
331
332	if ( empty( $blog_id ) \|\| ! is_numeric( $blog_id ) ) {
333	return;
334	}
335
336	if ( ! function_exists( 'is_plugin_active_for_network' ) ) {
337	require_once ABSPATH . 'wp-admin/includes/plugin.php';
338	}
339
340	if ( is_plugin_active_for_network( 'email-subscribers/email-subscribers.php' ) ) {
341	ig_es_activate_on_blog( $blog_id );
342	}
343	}
344	}
345
346	if ( ! function_exists( 'ig_es_activate_on_blog' ) ) {
347
348	/**
349	* Function to trigger Icegram Express' activation code for individual site/blog in a network.
350	*
351	* @param int $blog_id Blog ID of newly created site/blog.
352	*
353	* @since 4.4.2
354	*/
355	function ig_es_activate_on_blog( $blog_id ) {
356	switch_to_blog( $blog_id );
357	Email_Subscribers_Activator::activate();
358	add_option( 'email_subscribers_do_activation_redirect', true );
359	restore_current_blog();
360	}
361	}
362
363	if ( ! function_exists( 'ig_es_trigger_deactivation_in_multisite' ) ) {
364
365	/**
366	* Function to trigger Icegram Express' deactivation code for individual site in a network.
367	*
368	* @param int $blog_id Blog ID of newly created site/blog.
369	*
370	* @since 4.4.2
371	*/
372	function ig_es_trigger_deactivation_in_multisite( $blog_id ) {
373	switch_to_blog( $blog_id );
374	Email_Subscribers_Deactivator::deactivate();
375	restore_current_blog();
376	}
377	}
378
379	if ( version_compare( $wp_version, '5.1.0', '>' ) ) {
380	/**
381	* New action when a new site/blog created in WP Multisite > 5.1.0. Priority is lower to allow other options of site to be set before we initiate our activation process.
382	*/
383	add_action( 'wp_initialize_site', 'ig_es_may_activate_on_blog', 99 );
384	} else {
385	/**
386	* Deprecated action when a new site/blog created in WP Multisite <= 5.1.0
387	*/
388	add_action( 'wpmu_new_blog', 'ig_es_may_activate_on_blog' );
389	}
390
391	// This action gets triggered when super admin activates a single site/blog.
392	add_action( 'activate_blog', 'ig_es_may_activate_on_blog' );
393
394	add_action( 'admin_init', 'email_subscribers_redirect' );
395
396	if ( ! function_exists( 'email_subscribers_redirect' ) ) {
397	function email_subscribers_redirect() {
398
399	// Check if it is multisite and the current user is in the network administrative interface. e.g. `/wp-admin/network/`
400	if ( is_multisite() && is_network_admin() ) {
401	return;
402	}
403
404	if ( get_option( 'email_subscribers_do_activation_redirect', false ) ) {
405	delete_option( 'email_subscribers_do_activation_redirect' );
406	wp_redirect( 'admin.php?page=es_dashboard' );
407	}
408	}
409	}
410
411	if ( ! function_exists( 'es_subbox' ) ) {
412	/**
413	* Show subscription form
414	*
415	* @param null $namefield
416	* @param null $desc
417	* @param null $group
418	*/
419	function es_subbox( $namefield = null, $desc = null, $group = null ) {
420
421	$allowedtags = ig_es_allowed_html_tags_in_esc();
422	$atts = array(
423	'namefield' => $namefield,
424	'desc' => $desc,
425	'group' => $group,
426	);
427	$subscription_shortcode = ES_Shortcode::render_es_subscription_shortcode( $atts );
428	add_filter( 'safe_style_css', 'ig_es_allowed_css_style' );
429	echo wp_kses( $subscription_shortcode, $allowedtags );
430	}
431	}
432
433	/**
434	* The core plugin class that is used to define internationalization,
435	* admin-specific hooks, and public-facing site hooks.
436	*/
437	require ES_PLUGIN_DIR . 'lite/includes/class-email-subscribers.php';
438
439	if ( ! function_exists( 'ES' ) ) {
440
441	/**
442	* Icegram Express instance
443	*
444	* @return Email_Subscribers
445	*
446	* @since 4.2.1
447	*/
448	function ES() {
449	return Email_Subscribers::instance();
450	}
451	}
452
453	// Start ES
454	ES()->run();
455