sendwp / includes / functions.php

functions.php in SendWP 1.2.7, at includes/functions.php

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1	<?php
2	/**
3	* Misc. Functions
4	*/
5
6	/**
7	* Get the Server URL
8	*
9	* @return String
10	*/
11	function sendwp_get_server_url() {
12	$server_url = ( defined( 'SENDWP_SERVER_URL' ) ) ? SENDWP_SERVER_URL : 'https://app.sendwp.com';
13
14	return trailingslashit( $server_url );
15	}
16
17	/**
18	* Get the request authentication header
19	*
20	* @return String
21	*/
22	function sendwp_get_request_auth_header() {
23	return 'Basic ' . base64_encode( sendwp_get_client_name() . ':' . sendwp_get_client_secret() );
24	}
25
26	/**
27	* Get client name
28	*
29	* @return String
30	*/
31	function sendwp_get_client_name() {
32	$site_url = get_site_url();
33
34	return parse_url( $site_url, PHP_URL_HOST );
35	}
36
37	/**
38	* Get the client_url
39	*
40	* @return String
41	*/
42	function sendwp_get_client_url() {
43	return get_site_url();
44	}
45
46	/**
47	* Get client redirect url
48	*
49	* @return String
50	*/
51	function sendwp_get_client_redirect() {
52	return add_query_arg( 'page', 'sendwp', get_admin_url( null, 'tools.php' ) );
53	}
54
55	/**
56	* Get client secret
57	*
58	* @return String
59	*/
60	function sendwp_get_client_secret() {
61	$secret = get_option( 'sendwp_client_secret' );
62
63	if ( ! $secret ) {
64	$secret = sendwp_generate_secret();
65
66	sendwp_set_client_secret( $secret );
67	}
68
69	return $secret;
70	}
71
72	/**
73	* Set the client secret
74	*
75	* @param String $secret
76	*
77	* @return Boolean
78	*/
79	function sendwp_set_client_secret( $secret ) {
80	return update_option( 'sendwp_client_secret', $secret );
81	}
82
83	/**
84	* Generate the secret
85	*
86	* @param Integer $length
87	*
88	* @return String
89	*/
90	function sendwp_generate_secret( $length = 40 ) {
91	if ( 0 >= $length ) {
92	$length = 40; // Min key length.
93	}
94
95	if ( 255 <= $length ) {
96	$length = 255; // Max key length.
97	}
98
99	$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
100	$random_string = '';
101
102	for ( $i = 0; $i < $length; $i ++ ) {
103	$random_string .= $characters[ rand( 0, strlen( $characters ) - 1 ) ];
104	}
105
106	return $random_string;
107	}
108
109	/**
110	* Connect the client
111	*
112	* @return Void
113	*/
114	function sendwp_connect_client() {
115	update_option( 'sendwp_client_connected', '1' );
116	}
117
118	/**
119	* Disconnect the client
120	*
121	* @return Void
122	*/
123	function sendwp_disconnect_client() {
124	update_option( 'sendwp_client_connected', '0' );
125	}
126
127	/**
128	* Check if client is connected
129	*
130	* @return Bool
131	*/
132	function sendwp_client_connected() {
133	$connected = get_option( 'sendwp_client_connected', '0' );
134
135	if ( '1' === $connected \|\| 1 === $connected ) {
136	$connected = true;
137	} else {
138	$connected = false;
139	}
140	return $connected;
141	}
142
143	/**
144	* Update the client connection
145	*
146	* @return Bool\|Void
147	*/
148	function sendwp_update_client_connection() {
149	if ( ! isset( $_POST['sendwp_server_request'] ) ) {
150	return false;
151	}
152
153	if ( ! isset( $_POST['sendwp_hash'] ) \|\| ! sendwp_validate_hash( $_POST['sendwp_hash'] ) ) {
154	return false;
155	}
156
157	if ( 'disconnect' === $_POST['sendwp_server_request'] ) {
158	sendwp_disconnect_client();
159	} elseif ( 'connect' === $_POST['sendwp_server_request'] ) {
160	sendwp_connect_client();
161	}
162	}
163
164	/**
165	* Get client status
166	*
167	* @return Bool\|String
168	*/
169	function sendwp_get_client_status() {
170	if ( ! isset( $_POST['sendwp_request_status'] ) ) {
171	return false;
172	}
173
174	if ( ! isset( $_POST['sendwp_hash'] ) \|\| ! sendwp_validate_hash( $_POST['sendwp_hash'] ) ) {
175	return false;
176	}
177
178	$response = array(
179	'connected' => sendwp_client_connected(),
180	'enabled' => sendwp_forwarding_enabled(),
181	);
182
183	header( 'Content-Type: application/json' );
184
185	echo json_encode( $response );
186
187	die();
188	}
189
190	/**
191	* Validate the hash
192	*
193	* @return Bool
194	*/
195	function sendwp_validate_hash( $hash ) {
196	return sendwp_generate_hash() === $hash;
197	}
198
199	/**
200	* Get the hash
201	*
202	* @return String
203	*/
204	function sendwp_get_hash() {
205	return sendwp_generate_hash();
206	}
207
208	/**
209	* Generate the hash
210	*
211	* @return String
212	*/
213	function sendwp_generate_hash() {
214	$data = sendwp_get_client_name() . sendwp_get_client_secret();
215
216	return hash( 'sha256', $data );
217	}
218
219	/**
220	* Enable mail forwarding
221	*
222	* @return Void
223	*/
224	function sendwp_enable_forwarding() {
225	update_option( 'sendwp_forwarding_enabled', '1' );
226	}
227
228	/**
229	* Disable mail forwarding
230	*
231	* @return Void
232	*/
233	function sendwp_disable_forwarding() {
234	update_option( 'sendwp_forwarding_enabled', '0' );
235	}
236
237	/**
238	* Enqueues fowarding disabled notice
239	*
240	* @return Void
241	*/
242	function sendwp_forwarding_disabled_notice() {
243	if ( isset( $_GET['page'] ) && 'sendwp' === $_GET['page'] ) {
244	return;
245	}
246
247	if ( ! sendwp_forwarding_enabled() ) {
248	wp_enqueue_style( 'sendwp-notices', plugins_url( 'assets/css/admin/notices.css', __DIR__ ) );
249	include 'admin/views/disabled-notice.html.php';
250	}
251	}
252
253	/**
254	* Check if forwarding is enabled
255	*
256	* @return Bool
257	*/
258	function sendwp_forwarding_enabled() {
259	$enabled = get_option( 'sendwp_forwarding_enabled', '1' );
260
261	if ( ( '1' === $enabled \|\| 1 === $enabled ) && sendwp_client_connected() ) {
262	$enabled = true;
263	} else {
264	$enabled = false;
265	}
266
267	return $enabled;
268	}
269
270	/**
271	* Possibly disable mail forwarding
272	*
273	* @return Bool\|Void
274	*/
275	function sendwp_maybe_disable_forwarding() {
276	if ( ! isset( $_POST['security'] ) ) {
277	return false;
278	}
279
280	if ( ! wp_verify_nonce( $_POST['security'], 'sendwp_settings_nonce' ) ) {
281	return false;
282	}
283
284	if ( isset( $_POST['sendwp_forwarding'] ) ) {
285	if ( 'enable' === $_POST['sendwp_forwarding'] ) {
286	sendwp_enable_forwarding();
287	} elseif ( 'disable' === $_POST['sendwp_forwarding'] ) {
288	sendwp_disable_forwarding();
289	}
290	}
291	}
292
293	/**
294	* Connect pulse monitor
295	*
296	* @return Void
297	*/
298	function sendwp_connect_pulse_monitor() {
299	if ( ! wp_next_scheduled( 'sendwp_heartbeat' ) ) {
300	wp_schedule_event( time(), 'daily', 'sendwp_heartbeat' );
301	}
302	}
303
304	/**
305	* Check the pulse monitor
306	*
307	* @return Bool\|Void
308	*/
309	function sendwp_pulse_monitor() {
310	if ( get_transient( 'sendwp_pulse_monitor' ) ) {
311	return false;
312	}
313
314	$status = 'unknown';
315	$request = \SendWP\API\Request::create( 'clients/status' );
316	$response = $request->post( array() );
317
318	if ( is_wp_error( $response ) ) {
319	set_transient( 'sendwp_pulse_monitor', $response->get_error_message(), 10 * MINUTE_IN_SECONDS );
320
321	return;
322	}
323
324	$response_body = wp_remote_retrieve_body( $response );
325
326	set_transient( 'sendwp_pulse_monitor', $response_body, 10 * MINUTE_IN_SECONDS );
327
328	$status = json_decode( $response_body );
329
330	if ( 'not-connected' === $status->message ) {
331	sendwp_disconnect_client();
332	} elseif ( 'connected' === $status->message ) {
333	sendwp_connect_client();
334	}
335	}
336
337	/**
338	* Get last pulse result
339	*
340	* @return String
341	*/
342	function sendwp_last_pulse() {
343	$timestamp = time();
344	$saved = get_option( '_transient_timeout_sendwp_pulse_monitor', $timestamp );
345
346	if ( $saved > $timestamp ) {
347	$timestamp = $saved - 600;
348	}
349
350	$iso_date = gmdate( 'Y-m-d H:i:s', $timestamp );
351	$local_timestamp = get_date_from_gmt( $iso_date, 'F j, Y, g:i a' );
352
353	return $local_timestamp;
354	}
355
356	/**
357	* Return last pulse result
358	*
359	* @return String
360	*/
361	function sendwp_last_pulse_result() {
362	return get_option( '_transient_sendwp_pulse_monitor', 'unknown' );
363	}
364
365	/**
366	* Reset all plugin data
367	*
368	* @return Void
369	*/
370	function sendwp_reset_all_plugin_data() {
371	if ( check_admin_referer( 'reset_sendwp_data' . sendwp_get_client_secret() ) ) {
372	$options = array(
373	'sendwp_client_secret',
374	);
375
376	foreach ( $options as $option ) {
377	if ( get_option( $option, false ) !== false ) {
378	delete_option( $option );
379	}
380	}
381
382	sendwp_set_client_secret( sendwp_generate_secret() );
383	}
384
385	wp_redirect( sendwp_get_client_redirect() );
386
387	exit;
388	}
389	add_action( 'admin_post_sendwp_reset_plugin_data', 'sendwp_reset_all_plugin_data' );
390