hustle-mail.php — Hustle – Email Marketing, Lead Generation, Optins, Popups 7.8.9

wordpress-popup / inc / hustle-mail.php

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hustle-mail.php

278 lines

1	<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
2	/**
3	* Hustle_Mail
4	*
5	* @package Hustle
6	*/
7
8	/**
9	* Base class for sending emails.
10	*
11	* @since 3.0.5
12	*/
13	class Hustle_Mail {
14
15	/**
16	* Email recipient
17	* The email address that will receive the mail
18	*
19	* @var string
20	*/
21	protected $recipient = '';
22
23	/**
24	* Email message
25	*
26	* @var string
27	*/
28	protected $message = '';
29
30	/**
31	* Email subject
32	*
33	* @var string
34	*/
35	protected $subject = '';
36
37	/**
38	* Email 'from' address
39	*
40	* @var string
41	*/
42	protected $sender_email = '';
43
44	/**
45	* Email 'from' name
46	*
47	* @var string
48	*/
49	protected $sender_name = '';
50
51	/**
52	* Email headers
53	*
54	* @var array
55	*/
56	protected $headers = array();
57
58
59	/**
60	* Main constructor
61	*
62	* @since 3.0.5
63	* @param string $recipient The email recipient.
64	* @param string $message The email message.
65	* @param string $subject The email subject.
66	*/
67	public function __construct( $recipient = '', $message = '', $subject = '' ) {
68	$this->set_recipient( $recipient );
69	$this->set_message( $message );
70	if ( ! empty( $subject ) ) {
71	$this->subject = $subject;
72	}
73
74	$this->set_sender();
75	$this->set_headers();
76	}
77
78	/**
79	* Set recipient
80	*
81	* @since 3.0.5
82	* @param string $recipient The email recipient.
83	*/
84	private function set_recipient( $recipient ) {
85	if ( empty( $recipient ) ) {
86	return;
87	}
88	$recipients = array_map( 'trim', explode( ',', $recipient ) );
89	if ( empty( $recipients ) ) {
90	return;
91	}
92	$emails = array();
93	foreach ( $recipients as $email ) {
94	$filtered_email = filter_var( $email, FILTER_VALIDATE_EMAIL );
95	if ( $filtered_email ) {
96	$emails[] = $filtered_email;
97	}
98	}
99	if ( empty( $emails ) ) {
100	return;
101	}
102
103	$this->recipient = $emails;
104	}
105
106	/**
107	* Set message
108	*
109	* @since 3.0.5
110	* @param string $message The email message.
111	*/
112	private function set_message( $message ) {
113	if ( ! empty( $message ) ) {
114	$this->message = $message;
115	}
116	}
117
118	/**
119	* Set headers.
120	*
121	* @since 3.0.5
122	* @param array $headers The email headers.
123	*/
124	public function set_headers( $headers = array() ) {
125	if ( ! empty( $headers ) ) {
126	$this->headers = $headers;
127
128	} else {
129
130	$this->headers = array(
131	'From: ' . $this->sender_name . ' <' . $this->sender_email . '>',
132	);
133	$this->headers[] = 'Content-Type: text/html; charset=UTF-8';
134	}
135	}
136
137	/**
138	* Set sender details.
139	*
140	* @since 3.0.5
141	*/
142	private function set_sender() {
143	$general_settings = Hustle_Settings_Admin::get_general_settings();
144	$this->sender_email = $general_settings['sender_email_address'];
145	$this->sender_name = $general_settings['sender_email_name'];
146	}
147
148	/**
149	* Clean mail variables
150	*
151	* @since 3.0.5
152	*/
153	private function clean() {
154	$subject = stripslashes( $this->subject );
155	$subject = wp_strip_all_tags( $subject );
156	$this->subject = $subject;
157
158	$message = stripslashes( $this->message );
159	$message = wpautop( $message );
160	$message = make_clickable( $message );
161	$this->message = $message;
162	}
163
164	/**
165	* Send mail
166	*
167	* @since 3.0.5
168	* @return bool
169	*/
170	public function send() {
171	$sent = false;
172	if ( ! empty( $this->recipient ) && ! empty( $this->subject ) && ! empty( $this->message ) ) {
173	$this->clean();
174	foreach ( $this->recipient as $to ) {
175	$sent = wp_mail( $to, $this->subject, $this->message, $this->headers );
176	}
177	}
178	return $sent;
179	}
180
181	/**
182	* Send the actual email.
183	*
184	* @since 3.0.5
185	* @return bool
186	*/
187	public function process_mail() {
188	return $this->send();
189	}
190
191	/**
192	* Does the process to submit the unsubscription email.
193	*
194	* @since 3.0.5
195	* @param string $email Email to be unsubscribed.
196	* @param array $modules_id IDs of the modules to which it will be unsubscribed.
197	* @param string $referer URL referer.
198	* @return boolean
199	*/
200	public static function handle_unsubscription_user_email( $email, $modules_id, $referer ) {
201	if ( ! filter_var( $email, FILTER_VALIDATE_EMAIL ) ) {
202	Opt_In_Utils::maybe_log( __METHOD__, 'The provided email address is not valid.' );
203	return false;
204	}
205
206	if ( ! filter_var( $referer, FILTER_VALIDATE_URL ) ) {
207	Opt_In_Utils::maybe_log( __METHOD__, 'The provided referer is not valid.' );
208	return false;
209	}
210
211	$email = apply_filters( 'hustle_unsubscribe_email_recipient', $email, $modules_id, $referer );
212	$unsubscribe_url = self::get_unsubscribe_link( $email, $modules_id, $referer );
213	if ( ! $unsubscribe_url ) {
214	Opt_In_Utils::maybe_log( __METHOD__, 'There was an error getting the nonce.' );
215	return false;
216	}
217	$email_settings = Hustle_Settings_Admin::get_unsubscribe_email_settings();
218	$message = str_replace( '{hustle_unsubscribe_link}', $unsubscribe_url, $email_settings['email_body'] );
219	$message = apply_filters( 'hustle_unsubscribe_email_message', $message, $unsubscribe_url, $email, $modules_id, $referer );
220
221	$email_handler = new self( $email, $message, $email_settings['email_subject'] );
222	$sent = $email_handler->process_mail();
223
224	return $sent;
225	}
226
227	/**
228	* Get Unsubscribe link
229	*
230	* @param string $email Email.
231	* @param array $modules_id Module IDs unsubscribe from.
232	* @param string $referer Unsubscription base URL.
233	* @return string
234	*/
235	public static function get_unsubscribe_link( $email, $modules_id, $referer = '' ) {
236	if ( ! $referer ) {
237	$referer = get_option( 'hustle_unsubscribe_page' );
238	}
239	if ( ! $referer ) {
240	return '';
241	}
242	$module = new Hustle_Module_Model();
243	$nonce = $module->create_unsubscribe_nonce( $email, $modules_id );
244	if ( ! $nonce ) {
245	return '';
246	}
247
248	$parsed_url = wp_parse_url( $referer, PHP_URL_QUERY );
249	$concatenate = empty( $parsed_url ) ? '?' : '&';
250	$unsubscribe_url = apply_filters(
251	'hustle_unsubscribe_email_url',
252	$referer . $concatenate . 'token=' . $nonce . '&email=' . rawurlencode( $email ),
253	$email,
254	$modules_id,
255	$referer
256	);
257
258	return $unsubscribe_url;
259	}
260
261	/**
262	* Static function to send an email.
263	*
264	* @since 3.0.5
265	* @param string $to Email recipient.
266	* @param string $subject Email subject.
267	* @param string $body Email body.
268	* @return bool
269	*/
270	public static function send_email( $to, $subject, $body ) {
271	$email_handler = new self( $to, $body, $subject );
272	$sent = $email_handler->process_mail();
273
274	return $sent;
275	}
276
277	}
278