email-validator-for-contact-form-7.php — Email Validator for Contact Form 7 1.1.7

email-validator-for-contact-form-7 / email-validator-for-contact-form-7.php

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assets 5 years ago email-validator-for-contact-form-7.php 5 years ago license.txt 5 years ago readme.txt 5 years ago uninstall.php 5 years ago

email-validator-for-contact-form-7.php

491 lines

1	<?php
2
3	/*
4
5	Plugin Name: Email Validator for Contact Form 7
6
7	Plugin URI: https://developer.wordpress.org/plugins/email-validator-for-contact-form-7
8
9	Description: Enables Contact Form 7 users to validate their client’s email address before accepting their messages for sending using MailboxValidator. <strong>Before get started, install and activate the Contact Form 7 plugin first.</strong>
10
11	Version: 1.1.8
12
13	Author: MailboxValidator
14
15	Author URI: https://mailboxvalidator.com
16
17	License: GNU General Public License (GPL) version 3
18
19	License URI: https://www.gnu.org/licenses/gpl-2.0.html
20
21	*/
22
23
24
25	// Check if Contact Form 7 is been installed or not
26
27	add_action('admin_init', 'mbv_wpcf7_check_wpcf7_installed');
28
29	function mbv_wpcf7_check_wpcf7_installed () {
30
31	if ( is_admin() && current_user_can( "activate_plugins" ) && ! is_plugin_active( "contact-form-7/wp-contact-form-7.php" ) ) {
32
33	add_action( 'admin_notices', 'mbv_wpcf7_nocf7_notice' );
34
35	deactivate_plugins( plugin_basename( __FILE__ ) );
36
37	remove_submenu_page( 'options-general.php', 'email-validator-for-contact-form-7' );
38
39	$flag = (int) $_GET['activate'];
40
41	if ( isset( $flag ) ) {
42
43	unset( $_GET['activate'] );
44
45	}
46
47	}
48
49	}
50
51	function mbv_wpcf7_nocf7_notice () {
52
53	$plugin_url = esc_url( admin_url( 'plugin-install.php?tab=search&s=contact+form+7' ) );
54
55	echo '<div class="notice notice-warning is-dismissible">
56
57	<p>Contact Form 7 must be installed and activated before using the MailboxValidator plugin. You can click <a href="' . $plugin_url . '">here</a> to install the Contact Form 7 plugin.</p>
58
59	</div>';
60
61	}
62
63	// Show notice if the MBV API key not been saved yet
64
65	function mbv_wpcf7_general_admin_notice(){
66
67	global $pagenow;
68
69	$options = get_option( 'mbv_wpcf7_email_validator_for_contact_form_7' );
70
71	if ( $options['api_key'] == '' \|\| $options['api_key'] == ' ' ) {
72
73	echo '<div class="notice notice-warning is-dismissible">
74
75	<p>Please get your MailboxValidator API key from <a href="https://www.mailboxvalidator.com/plans#api">here</a> and save in <a href="options-general.php?page=email-validator-for-contact-form-7">setting page</a>.</p>
76
77	</div>';
78
79	}
80
81	// else if ( $pagenow == 'plugins.php' && ( $options['api_key'] == '' \|\| $options['api_key'] == ' ' ) ) {
82
83	// echo '<div class="notice notice-warning is-dismissible">
84
85	// <p>Please get your MailboxValidator API key from <a href="https://www.mailboxvalidator.com/plans#api">here</a> and save in <a href="options-general.php?page=email-validator-for-contact-form-7">setting page</a>.</p>
86
87	// </div>';
88
89	// }
90
91	}
92
93	add_action( 'admin_notices', 'mbv_wpcf7_general_admin_notice' );
94
95	// add the admin options page
96
97	add_action( 'admin_menu', 'mbv_wpcf7_plugin_admin_add_page' );
98
99	function mbv_wpcf7_plugin_admin_add_page() {
100
101	add_options_page( 'Email Validator for Contact Form 7', 'Email Validator for Contact Form 7', 'manage_options', 'email-validator-for-contact-form-7', 'mbv_wpcf7_plugin_options_page' );
102
103	wp_register_script( 'mailboxvalidator_email_validator_script', plugins_url( '/assets/js/mbv.js', __FILE__ ), array( 'jquery' ) );
104	wp_enqueue_script( 'mailboxvalidator_email_validator_script' );
105
106	}
107
108	// display the admin options page
109
110	function mbv_wpcf7_plugin_options_page() {
111
112	?>
113
114	<div>
115
116	<h2>Email Validator for Contact Form 7 by MailboxValidator</h2>
117
118	<p>This plugin enables Contact Form 7 users to validate their client’s email address before accepting their messages for sending. It uses MailboxValidator service for email validation. Please get your free MailboxValidator API key from <a href="https://www.mailboxvalidator.com/plans#api">here</a>. Once you save the settings by clicking "Save Changes", your settings will be saved and Contact Form 7 will automatically detect the changes.</p>
119
120	<!--<p>At here you can edit your MailboxValidator API key and switch on or off disposable or free email validator.</p>-->
121	<?php
122	$mbv_options = get_option( 'mbv_wpcf7_email_validator_for_contact_form_7' );
123	$api_key = isset( $mbv_options['api_key'] ) ? $mbv_options['api_key'] : '';
124	if ( $api_key != '' ) {
125	$url = 'https://api.mailboxvalidator.com/plan?key=' . $api_key;
126	$results = wp_remote_get( $url );
127	if ( !is_wp_error( $results ) ) {
128	$body = wp_remote_retrieve_body( $results );
129
130	// Decode the return json results and return the data.
131	$data = json_decode( $body, true );
132	// Now print the plan info
133	echo '<h2>Plan Information</h2><table class="form-table">';
134	echo '<tr><th scope="row"><label>Plan Name</label></th><td><p>' . $data['plan_name'] . '</p></td></tr>';
135	echo '<tr><th scope="row"><label>Credits Available</label></th><td><p>' . $data['credits_available'] . '</p></td></tr>';
136	echo '<tr><th scope="row"><label>Next Renewal Date</label></th><td><p>' . $data['next_renewal_date'] . '</p></td></tr>';
137	echo '</table>';
138	}
139	}
140	?>
141
142	<form action="options.php" method="post">
143
144	<?php settings_fields( 'mbv_wpcf7_email_validator_for_contact_form_7' ); ?>
145
146	<?php do_settings_sections( 'mbv_wpcf7_plugin' ); ?>
147
148	<input name="Submit" type="submit" value="<?php esc_attr_e( 'Save Changes' ); ?>" />
149
150	</form>
151
152	</div>
153
154
155
156	<?php
157
158	}
159
160	// add the admin settings and such
161
162	add_action( 'admin_init', 'mbv_wpcf7_plugin_admin_init' );
163
164	function mbv_wpcf7_plugin_admin_init(){
165
166	register_setting( 'mbv_wpcf7_email_validator_for_contact_form_7', 'mbv_wpcf7_email_validator_for_contact_form_7' );
167
168	add_settings_section( 'mbv_wpcf7_plugin_main', 'Main Settings', 'mbv_wpcf7_plugin_section_text', 'mbv_wpcf7_plugin' );
169
170	add_settings_field( 'mbv_wpcf7_api_key', 'MailboxValidator API Key', 'mbv_wpcf7_api_key_setting', 'mbv_wpcf7_plugin', 'mbv_wpcf7_plugin_main' );
171
172	add_settings_field( 'mbv_wpcf7_disposable_option', 'Disposable Email Validation', 'mbv_wpcf7_disposable_setting_option', 'mbv_wpcf7_plugin', 'mbv_wpcf7_plugin_main' );
173
174	add_settings_field( 'mbv_wpcf7_disposable_error_message', 'Error Message for Disposable Email', 'mbv_wpcf7_disposable_error_message_setting', 'mbv_wpcf7_plugin', 'mbv_wpcf7_plugin_main' );
175
176	add_settings_field( 'mbv_wpcf7_free_option', 'Free Email Validation', 'mbv_wpcf7_free_setting_option', 'mbv_wpcf7_plugin', 'mbv_wpcf7_plugin_main' );
177
178	add_settings_field( 'mbv_wpcf7_free_error_message', 'Error Message for Free Email', 'mbv_wpcf7_free_error_message_setting', 'mbv_wpcf7_plugin', 'mbv_wpcf7_plugin_main' );
179
180	}
181
182	function mbv_wpcf7_plugin_section_text() {
183
184	echo '<p>At here you can edit your MailboxValidator API key, switch on or off disposable or free email validator and design custom error message for disposable and free email.</p>';
185
186	}
187
188	function mbv_wpcf7_api_key_setting() {
189
190	$options = get_option( 'mbv_wpcf7_email_validator_for_contact_form_7' );
191
192	$api_key = $options['api_key'] ?? ' ';
193
194	echo '<input id="api_key" name="mbv_wpcf7_email_validator_for_contact_form_7[api_key]" size="40" type="text" value="' . esc_attr( $api_key ). '" />';
195
196	}
197
198	function mbv_wpcf7_disposable_setting_option() {
199
200	$options = get_option( 'mbv_wpcf7_email_validator_for_contact_form_7' );
201
202	$disposable_on_off = $options['disposable_on_off'] ?? 'on';
203
204	echo '<div id="radio1"><label><input type="radio" name="mbv_wpcf7_email_validator_for_contact_form_7[disposable_on_off]" id="disposable_option" value="on"' . ( ( $disposable_on_off == 'on' ) ? ' checked' : '' ) . ' /> On</label>
205	<label><input type="radio" name="mbv_wpcf7_email_validator_for_contact_form_7[disposable_on_off]" id="disposable_option" value="off"' . ( ( $disposable_on_off == 'off' ) ? ' checked' : '' ) . ' /> Off</label></div><br />';
206
207	}
208
209	function mbv_wpcf7_free_setting_option() {
210
211	$options = get_option( 'mbv_wpcf7_email_validator_for_contact_form_7' );
212
213	$free_on_off = $options['free_on_off'] ?? 'on';
214
215	echo '<div id="radio2"><label><input type="radio" name="mbv_wpcf7_email_validator_for_contact_form_7[free_on_off]" id="free_option" value="on"' . ( ( $free_on_off == 'on' ) ? ' checked' : '' ) . ' /> On</label>
216	<label><input type="radio" name="mbv_wpcf7_email_validator_for_contact_form_7[free_on_off]" id="free_option" value="off"' . ( ( $free_on_off == 'off' ) ? ' checked' : '' ) . ' /> Off</label></div><br />';
217
218	}
219
220	function mbv_wpcf7_disposable_error_message_setting() {
221
222	$options = get_option( 'mbv_wpcf7_email_validator_for_contact_form_7' );
223
224	$disposable_error_message = $options['disposable_error_message'] ?? 'Invalid email address. Please enter a non-disposable email address.';
225
226	$disposable_on_off = $options['disposable_on_off'] ?? 'on';
227
228	echo '<input id="disposable_error_message" name="mbv_wpcf7_email_validator_for_contact_form_7[disposable_error_message]" style="width:100%" type="text" value="' . $disposable_error_message . '" ' . ( $disposable_on_off == 'off' ? 'disabled="disabled" ' : '' ) . '/>';
229
230	}
231
232	function mbv_wpcf7_free_error_message_setting() {
233
234	$options = get_option( 'mbv_wpcf7_email_validator_for_contact_form_7' );
235
236	$free_error_message = $options['free_error_message'] ?? 'Invalid email address. Please enter a non-free email address.';
237
238	$free_on_off = $options['free_on_off'] ?? 'on';
239
240	echo '<input id="free_error_message" name="mbv_wpcf7_email_validator_for_contact_form_7[free_error_message]" style="width:100%" type="text" value="' . $free_error_message . '" ' . ( $free_on_off == 'off' ? 'disabled="disabled" ' : '' ) . '/>';
241
242	}
243
244	// function mbv_wpcf7_string_length( $string ){
245
246	// return mb_strlen( $string );
247
248	// }
249
250	add_action( 'admin_enqueue_scripts', 'plugin_enqueues' );
251
252	add_action( 'wp_ajax_email_validator_for_contact_form_7_submit_feedback', 'submit_feedback' );
253	add_action( 'admin_footer_text', 'admin_footer_text' );
254
255	// Enqueue the script.
256	function plugin_enqueues( $hook ) {
257
258	// if ( $hook == 'options-general.php' ) {
259	// wp_enqueue_script( 'email_validator_for_contact_form_7_admin_setting_script', plugins_url( '/assets/js/feedback.js', __FILE__ ), ['jquery'], null, true );
260	// }
261
262	if ( $hook == 'plugins.php' ) {
263	// Add in required libraries for feedback modal
264	wp_enqueue_script( 'jquery-ui-dialog' );
265	wp_enqueue_style( 'wp-jquery-ui-dialog' );
266
267	wp_enqueue_script( 'email_validator_for_contact_form_7_admin_script', plugins_url( '/assets/js/feedback.js', __FILE__ ), ['jquery'], null, true );
268	}
269	}
270
271	function admin_footer_text( $footer_text ) {
272	// $plugin_name = substr( basename( __FILE__ ), 0, strpos( basename( __FILE__ ), '.' ) );
273	$plugin_name = 'email-validator-for-contact-form-7';
274	$current_screen = get_current_screen();
275
276	if ( ( $current_screen && strpos( $current_screen->id, $plugin_name ) !== false ) ) {
277	$footer_text .= sprintf(
278	__( 'Enjoyed %1$s? Please leave us a %2$s rating. A huge thanks in advance!', $plugin_name ),
279	'<strong>' . __( 'MailboxValidator Email Validator', $plugin_name ) . '</strong>',
280	'<a href="https://wordpress.org/support/plugin/' . $plugin_name . '/reviews/?filter=5/#new-post" target="_blank">★★★★★</a>'
281	);
282	}
283
284	if ( $current_screen->id == 'plugins' ) {
285	return $footer_text . '
286	<div id="email-validator-for-contact-form-7-feedback-modal" class="hidden" style="max-width:800px">
287	<span id="email-validator-for-contact-form-7-feedback-response"></span>
288	<p>
289	<strong>Would you mind sharing with us the reason to deactivate the plugin?</strong>
290	</p>
291	<p>
292	<label>
293	<input type="radio" name="email-validator-for-contact-form-7-feedback" value="1"> I no longer need the plugin
294	</label>
295	</p>
296	<p>
297	<label>
298	<input type="radio" name="email-validator-for-contact-form-7-feedback" value="2"> I couldn\'t get the plugin to work
299	</label>
300	</p>
301	<p>
302	<label>
303	<input type="radio" name="email-validator-for-contact-form-7-feedback" value="3"> The plugin doesn\'t meet my requirements
304	</label>
305	</p>
306	<p>
307	<label>
308	<input type="radio" name="email-validator-for-contact-form-7-feedback" value="4"> Other concerns
309	<br><br>
310	<textarea id="email-validator-for-contact-form-7-feedback-other" style="display:none;width:100%"></textarea>
311	</label>
312	</p>
313	<p>
314	<div style="float:left">
315	<input type="button" id="email-validator-for-contact-form-7-submit-feedback-button" class="button button-danger" value="Submit & Deactivate" />
316	</div>
317	<div style="float:right">
318	<a href="#">Skip & Deactivate</a>
319	</div>
320	</p>
321	</div>';
322	}
323
324	return $footer_text;
325	}
326
327	function submit_feedback() {
328	$feedback = ( isset( $_POST['feedback'] ) ) ? $_POST['feedback'] : '';
329	$others = sanitize_text_field (( isset( $_POST['others'] ) ) ? $_POST['others'] : '' );
330
331	$options = [
332	1 => 'I no longer need the plugin',
333	2 => 'I couldn\'t get the plugin to work',
334	3 => 'The plugin doesn\'t meet my requirements',
335	4 => 'Other concerns' . ( ( $others ) ? ( ' - ' . $others ) : '' ),
336	];
337
338	$url = 'https://www.mailboxvalidator.com/wp-plugin-feedback?' . http_build_query( ['name' => 'email-validator-for-contact-form-7', 'message' => $options[$feedback],] );
339	// file_put_contents ( __DIR__ . '/mbv_plugin_logs.log' , $url . PHP_EOL, FILE_APPEND );
340
341	if ( isset( $options[$feedback] ) ) {
342	if ( !class_exists( 'WP_Http' ) ) {
343	include_once ABSPATH . WPINC . '/class-http.php';
344	}
345
346	$request = new WP_Http();
347	$response = $request->request( 'https://www.mailboxvalidator.com/wp-plugin-feedback?' . http_build_query( [
348	'name' => 'email-validator-for-contact-form-7',
349	'message' => $options[$feedback],
350	] ), ['timeout' => 5] );
351	}
352	}
353
354	function mbv_wpcf7_validate_email_check_free( $emailAddress, $api_key ) {
355
356	// Now we need to send the data to MBV API Key and return back the result.
357
358	$url = 'https://api.mailboxvalidator.com/v1/email/free?key=' . str_replace( ' ', '', $api_key ) . '&email=' . str_replace( ' ', '', $emailAddress ) . '&source=wordpress_7';
359
360	$results = file_get_contents( $url );
361
362
363
364	// Decode the return json results and return the data.
365
366	$data = json_decode( $results, true );
367
368	mbv_wpcf7_mailboxvalidator_api_log( 'free', $data['email_address'], $data['is_free'], $data['credits_available'], $data['error_code'], $data['error_message'] );
369
370	if ( $data['error_message'] == '' ) {
371
372	if ( $data['is_free'] == 'False' ) {
373
374	return false;
375
376	} else {
377
378	return true;
379
380	}
381
382	}
383
384	}
385
386	function mbv_wpcf7_validate_email_check_disposable( $emailAddress, $api_key ) {
387
388	// Now we need to send the data to MBV API Key and return back the result.
389
390	$url = 'https://api.mailboxvalidator.com/v1/email/disposable?key=' . str_replace( ' ', '', $api_key ) . '&email=' . str_replace( ' ', '', $emailAddress ) . '&source=wordpress_7';
391
392	$results = file_get_contents( $url );
393
394
395
396	// Decode the return json results and return the data.
397
398	$data = json_decode( $results, true );
399
400	mbv_wpcf7_mailboxvalidator_api_log( 'disposable', $data['email_address'], $data['is_disposable'], $data['credits_available'], $data['error_code'], $data['error_message'] );
401
402	if ( $data['error_message'] == '' ) {
403
404	if ( $data['is_disposable'] == 'False' ) {
405
406	return false;
407
408	} else {
409
410	return true;
411
412	}
413
414	}
415
416	}
417
418	function mbv_wpcf7_custom_email_validator_filter( $result, $tags ) {
419
420	// Get option settings to know which validator is been called
421
422	$options = get_option( 'mbv_wpcf7_email_validator_for_contact_form_7' );
423
424	$tags = new WPCF7_FormTag( $tags );
425
426	$type = $tags->type;
427
428	$name = $tags->name;
429
430	if ( ( 'email' == $type \|\| 'email*' == $type ) && !( $options['api_key'] == '' ) ) {
431
432	// do validation for disposable and free
433
434	if( $options['disposable_on_off'] == 'on' ){
435
436	file_put_contents( __DIR__ . '/mbv_api_logs.log', 'mbv_wpcf7_validate_email_check_disposable result: ' . mbv_wpcf7_validate_email_check_disposable( sanitize_email ( $_POST[$name] ), $options['api_key'] ) . PHP_EOL, FILE_APPEND );
437	if( ( mbv_wpcf7_validate_email_check_disposable( sanitize_email ( $_POST[$name] ), $options['api_key'] ) ) == true){
438
439	$result->invalidate( $tags, __( $options['disposable_error_message'] ?? 'Invalid email address. Please enter a non-disposable email address.', 'email-validator-for-contact-form-7' ) );
440
441	}elseif ( $options['free_on_off'] == 'on' ){
442
443	if( ( mbv_wpcf7_validate_email_check_free( sanitize_email ( $_POST[$name] ), $options['api_key'] ) ) == true ){
444
445	$result->invalidate( $tags, __( $options['free_error_message'] ?? 'Invalid email address. Please enter a non-free email address.', 'email-validator-for-contact-form-7' ) );
446
447	}
448
449	}
450
451	} elseif ( $options['free_on_off'] == 'on' ){
452
453	if( ( mbv_wpcf7_validate_email_check_free( sanitize_email ( $_POST[$name] ), $options['api_key'] ) ) == true ){
454
455	$result->invalidate( $tags, __( $options['free_error_message'] ?? 'Invalid email address. Please enter a non-free email address.', 'email-validator-for-contact-form-7' ) );
456
457	}
458
459	}
460
461	}
462
463	return $result;
464
465	}
466
467	add_filter( 'wpcf7_validate_email', 'mbv_wpcf7_custom_email_validator_filter', 20, 2 ); // Email field
468
469	add_filter( 'wpcf7_validate_email*', 'mbv_wpcf7_custom_email_validator_filter', 20, 2 ); // Req. Email field
470
471	function mbv_wpcf7_mailboxvalidator_api_log ( $mode, $api_result1, $api_result2, $api_result3, $api_result4, $api_result5 ) {
472
473	// Log all the MBV api usage to the log file
474
475	file_put_contents( __DIR__ . '/mbv_api_logs.log', 'Email Address: ' . $api_result1 . PHP_EOL, FILE_APPEND );
476
477	if ( $mode == 'disposable' ) {
478	file_put_contents( __DIR__ . '/mbv_api_logs.log', 'is_disposable: ' . $api_result2 . PHP_EOL, FILE_APPEND );
479	} else {
480	file_put_contents( __DIR__ . '/mbv_api_logs.log', 'is_free: ' . $api_result2 . PHP_EOL, FILE_APPEND );
481	}
482
483	file_put_contents( __DIR__ . '/mbv_api_logs.log', 'Credits Available: ' . $api_result3 . PHP_EOL, FILE_APPEND );
484
485	file_put_contents( __DIR__ . '/mbv_api_logs.log', 'Error Code: ' . $api_result4 == '' ?: '-' . PHP_EOL, FILE_APPEND );
486
487	file_put_contents( __DIR__ . '/mbv_api_logs.log', 'Error Message: ' . $api_result5 == '' ?: '-' . PHP_EOL, FILE_APPEND );
488
489	file_put_contents( __DIR__ . '/mbv_api_logs.log', str_repeat( '-', 120 ) . PHP_EOL, FILE_APPEND );
490
491	}