Contact Form 7 – reCaptcha v2 - Version 1.0

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Developer IQComputing
Plugin Icon 128x128 Contact Form 7 – reCaptcha v2
Version 1.0
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Files changed (5) hide show
  1. changelog.txt +12 -0
  2. license.txt +621 -0
  3. readme.txt +64 -0
  4. recaptcha-v2.php +580 -0
  5. wpcf7-recaptcha.php +213 -0
changelog.txt ADDED
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+ == Changelog Archive ==
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+
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+ This is to keep track of all changes the plugin undertakes. The readme.txt should only contain the most recent 3.
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+
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+ = 1.0 =
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+
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+ Release Date: December 28, 2018
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+
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+ * Overview
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+ * Initial release of plugin.
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+ * Contact Form 7 5.0.5 reCaptcha functionality copied over.
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+ * Created subpage under "Contact" named "reCaptcha Version" to be used as a settings page.
license.txt ADDED
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+ GNU GENERAL PUBLIC LICENSE
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+ If you convey a covered work, knowingly relying on a patent license,
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+ publicly available network server or other readily accessible means,
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+ then you must either (1) cause the Corresponding Source to be so
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+ available, or (2) arrange to deprive yourself of the benefit of the
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+ patent license for this particular work, or (3) arrange, in a manner
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+ consistent with the requirements of this License, to extend the patent
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+ license to downstream recipients. "Knowingly relying" means you have
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+ actual knowledge that, but for the patent license, your conveying the
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+ covered work in a country, or your recipient's use of the covered work
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+ in a country, would infringe one or more identifiable patents in that
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+ country that you have reason to believe are valid.
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+
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+ If, pursuant to or in connection with a single transaction or
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+ arrangement, you convey, or propagate by procuring conveyance of, a
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+ covered work, and grant a patent license to some of the parties
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+ receiving the covered work authorizing them to use, propagate, modify
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+ or convey a specific copy of the covered work, then the patent license
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+ you grant is automatically extended to all recipients of the covered
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+ work and works based on it.
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+
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+ A patent license is "discriminatory" if it does not include within
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+ the scope of its coverage, prohibits the exercise of, or is
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+ conditioned on the non-exercise of one or more of the rights that are
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+ specifically granted under this License. You may not convey a covered
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+ in the business of distributing software, under which you make payment
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+ to the third party based on the extent of your activity of conveying
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+ the work, and under which the third party grants, to any of the
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+ parties who would receive the covered work from you, a discriminatory
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+ patent license (a) in connection with copies of the covered work
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+ conveyed by you (or copies made from those copies), or (b) primarily
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+ for and in connection with specific products or compilations that
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+ contain the covered work, unless you entered into that arrangement,
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+ or that patent license was granted, prior to 28 March 2007.
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+
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+ Nothing in this License shall be construed as excluding or limiting
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+ any implied license or other defenses to infringement that may
538
+ otherwise be available to you under applicable patent law.
539
+
540
+ 12. No Surrender of Others' Freedom.
541
+
542
+ If conditions are imposed on you (whether by court order, agreement or
543
+ otherwise) that contradict the conditions of this License, they do not
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+ excuse you from the conditions of this License. If you cannot convey a
545
+ covered work so as to satisfy simultaneously your obligations under this
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+ License and any other pertinent obligations, then as a consequence you may
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+ not convey it at all. For example, if you agree to terms that obligate you
548
+ to collect a royalty for further conveying from those to whom you convey
549
+ the Program, the only way you could satisfy both those terms and this
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+ License would be to refrain entirely from conveying the Program.
551
+
552
+ 13. Use with the GNU Affero General Public License.
553
+
554
+ Notwithstanding any other provision of this License, you have
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+ permission to link or combine any covered work with a work licensed
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+ under version 3 of the GNU Affero General Public License into a single
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+ combined work, and to convey the resulting work. The terms of this
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+ License will continue to apply to the part which is the covered work,
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+ but the special requirements of the GNU Affero General Public License,
560
+ section 13, concerning interaction through a network will apply to the
561
+ combination as such.
562
+
563
+ 14. Revised Versions of this License.
564
+
565
+ The Free Software Foundation may publish revised and/or new versions of
566
+ the GNU General Public License from time to time. Such new versions will
567
+ be similar in spirit to the present version, but may differ in detail to
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+ address new problems or concerns.
569
+
570
+ Each version is given a distinguishing version number. If the
571
+ Program specifies that a certain numbered version of the GNU General
572
+ Public License "or any later version" applies to it, you have the
573
+ option of following the terms and conditions either of that numbered
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+ version or of any later version published by the Free Software
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+ Foundation. If the Program does not specify a version number of the
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+ GNU General Public License, you may choose any version ever published
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+ by the Free Software Foundation.
578
+
579
+ If the Program specifies that a proxy can decide which future
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+ versions of the GNU General Public License can be used, that proxy's
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+
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+ Later license versions may give you additional or different
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+ permissions. However, no additional obligations are imposed on any
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+ author or copyright holder as a result of your choosing to follow a
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+ later version.
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+
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+ 15. Disclaimer of Warranty.
590
+
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+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592
+ APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
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+ HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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597
+ IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598
+ ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599
+
600
+ 16. Limitation of Liability.
601
+
602
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603
+ WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
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+ THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
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+ GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
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+ USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607
+ DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
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+ PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609
+ EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610
+ SUCH DAMAGES.
611
+
612
+ 17. Interpretation of Sections 15 and 16.
613
+
614
+ If the disclaimer of warranty and limitation of liability provided
615
+ above cannot be given local legal effect according to their terms,
616
+ reviewing courts shall apply local law that most closely approximates
617
+ an absolute waiver of all civil liability in connection with the
618
+ Program, unless a warranty or assumption of liability accompanies a
619
+ copy of the Program in return for a fee.
620
+
621
+ END OF TERMS AND CONDITIONS
readme.txt ADDED
@@ -0,0 +1,64 @@
1
+ === Contact Form 7 - reCaptcha v2 ===
2
+ Contributors: iqcomputing
3
+ Tags: contact-form-7, contact-form-7-recaptcha, recaptcha, spam
4
+ Requires at least: 4.9
5
+ Tested up to: 5.0.2
6
+ Stable tag: 1.0
7
+ Requires PHP: 7.2
8
+ License: GPLv2 or later
9
+ License URI: https://www.gnu.org/licenses/gpl-2.0.html
10
+
11
+ Adds reCaptcha v2 from Contact Form 7 5.0.5 that was dropped on Contact Form 7 5.1
12
+
13
+ == Description ==
14
+
15
+ Contact Form 7 v5.1 dropped support for reCaptcha v2 along with the `[recaptcha]` tag December 2018. This plugin brings that functionality back from Contact Form 7 5.0.5 and re-adds the `[recaptcha]` tag.
16
+
17
+ Once installed and configured it should be the same reCaptcha functionality you are used to in previous versions of Contact Form 7.
18
+
19
+ == IQComputing ==
20
+
21
+ * Like us on [Facebook](https://www.facebook.com/iqcomputing/ "IQComputing on Facebook")
22
+ * Follow us on [Twitter](https://twitter.com/iqcomputing/ "IQComputing on Twitter")
23
+
24
+ == Installation ==
25
+
26
+ [Contact Form 7](https://wordpress.org/plugins/contact-form-7/ "Contact Form 7 plugin page") is required to work with this plugin.
27
+
28
+ 1. Install this (Contact Form 7 - reCaptcha v2) plugin
29
+ 1. Update Contact Form 7 to the latest version
30
+ 1. Re-add the reCaptcha version 2 API keys. For more information you may read the [Contact Form 7 documentation](https://contactform7.com/recaptcha-v2/ "Contact Form 7 reCaptcha(v2)")
31
+ 1. Using the left-hand admin navigation in the Contact Form 7 subpages click "reCaptcha Version" (Contact -> reCaptcha Version)
32
+ 1. Once on the "Contact Form 7 - reCaptcha v2" settings page, select from the select list "reCaptcha Version 2" and click "save"
33
+
34
+ Once the version 2 API keys are set, the version 2 has been selected in the plugin settings, all [recaptcha] tags will be replaced with the expected Google reCaptcha on all forms.
35
+
36
+ == Frequently Asked Questions ==
37
+
38
+ = Will this plugin work with Version 3 keys? =
39
+
40
+ No and yes. Google reCaptcha has specific keys for each API. If you are doing an upgrade from a previous version of Contact Form 7 to the current version you will need to re-add the Version 2 API keys using the traditional method. That being said you can set the plugin usage to default and it will use the inherit Contact Form 7 reCaptcha Version 3 API.
41
+
42
+ = Where do I add my Version 2 keys? =
43
+
44
+ Under Contact -> Integration you can see a "reCAPTCHA" service box where you may either "Setup Integration" following instructions from the [Contact Form 7 documentation](https://contactform7.com/recaptcha-v2/ "Contact Form 7 reCaptcha(v2)"). If you already have keys set you will need to click the "Remove Keys" button and re-add them following the [Contact Form 7 documentation](https://contactform7.com/recaptcha-v2/ "Contact Form 7 reCaptcha(v2)").
45
+
46
+ = I've added the Version 2 keys but nothing has changed =
47
+
48
+ If you have added the Version 2 keys and you still do not see the reCaptcha show up on your forms please check the following:
49
+
50
+ 1. In WordPress admin, under Contact -> reCaptcha Version please ensure that you have "reCaptcha Version 2" selected and saved.
51
+ 1. On your contact forms please ensure that you have the [recaptcha] tag somewhere in the form.
52
+
53
+ Should the above be correct, at this point it's time to open a support thread for us to look into the issue further.
54
+
55
+ == Screenshots ==
56
+
57
+ 1. Settings page
58
+
59
+ == Changelog ==
60
+
61
+ = 1.0.0 (2018-12-28) =
62
+ * Initial release of plugin.
63
+ * Contact Form 7 5.0.5 reCaptcha functionality copied over.
64
+ * Created subpage under "Contact" named "reCaptcha Version" to be used as a settings page.
recaptcha-v2.php ADDED
@@ -0,0 +1,580 @@
1
+ <?php
2
+ /**
3
+ * Replace reCaptcha v3 with ReCaptcha v2
4
+ * Use [recaptcha] shortcode when possible
5
+ */
6
+
7
+
8
+ defined( 'ABSPATH' ) or die( 'You cannot be here.' );
9
+
10
+
11
+ /**
12
+ * Remove old hooks and add new hook callbacks
13
+ *
14
+ * @return void
15
+ */
16
+ function iqfix_wpcf7_manage_hooks() {
17
+
18
+ // reCaptcha Verification
19
+ remove_filter( 'wpcf7_spam', 'wpcf7_recaptcha_verify_response', 9 );
20
+ add_filter( 'wpcf7_spam', 'iqfix_wpcf7_recaptcha_check_with_google', 9 );
21
+
22
+ // reCaptcha Enqueues
23
+ remove_action( 'wp_enqueue_scripts', 'wpcf7_recaptcha_enqueue_scripts', 10 );
24
+ add_action( 'wp_enqueue_scripts', 'iqfix_wpcf7_recaptcha_enqueue_scripts', 10 );
25
+
26
+ // reCaptcha Footer Javascript
27
+ remove_action( 'wp_footer', 'wpcf7_recaptcha_onload_script', 40 );
28
+ add_action( 'wp_footer', 'iqfix_wpcf7_recaptcha_callback_script', 40 );
29
+
30
+ }
31
+ add_action( 'setup_theme', 'iqfix_wpcf7_manage_hooks' );
32
+
33
+
34
+ /**
35
+ * Remove current [recaptcha] tag and replace it with old reCaptcha tag
36
+ *
37
+ * @return void
38
+ */
39
+ function iqfix_wpcf7_add_recaptcha_tag() {
40
+
41
+ wpcf7_remove_form_tag( 'recaptcha' );
42
+ wpcf7_add_form_tag(
43
+ 'recaptcha',
44
+ 'iqfix_wpcf7_recaptcha_form_tag_handler',
45
+ array( 'display-block' => true )
46
+ );
47
+
48
+ }
49
+ add_action( 'wpcf7_init', 'iqfix_wpcf7_add_recaptcha_tag', 20 );
50
+
51
+
52
+ /**
53
+ * Register the Google reCaptcha API script
54
+ *
55
+ * The following function was not written by IQComputing and is included in
56
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
57
+ * contact-form-7\modules\recaptcha.php LN241
58
+ *
59
+ * @return void
60
+ */
61
+ function iqfix_wpcf7_recaptcha_enqueue_scripts() {
62
+
63
+ $url = 'https://www.google.com/recaptcha/api.js';
64
+ $url = add_query_arg( array(
65
+ 'onload' => 'recaptchaCallback',
66
+ 'render' => 'explicit',
67
+ ), $url );
68
+
69
+ wp_register_script( 'google-recaptcha', $url, array(), '2.0', true );
70
+
71
+ }
72
+ // See `iqfix_wpcf7_manage_hooks` callback above
73
+
74
+
75
+ /**
76
+ * reCaptcha Javascript
77
+ *
78
+ * The following function was not written by IQComputing and is included in
79
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
80
+ * contact-form-7\modules\recaptcha.php LN253
81
+ *
82
+ * @return void
83
+ */
84
+ function iqfix_wpcf7_recaptcha_callback_script() {
85
+
86
+ if ( ! wp_script_is( 'google-recaptcha', 'enqueued' ) ) {
87
+ return;
88
+ }
89
+
90
+ ?>
91
+ <script type="text/javascript">
92
+ var recaptchaWidgets = [];
93
+ var recaptchaCallback = function() {
94
+ var forms = document.getElementsByTagName( 'form' );
95
+ var pattern = /(^|\s)g-recaptcha(\s|$)/;
96
+
97
+ for ( var i = 0; i < forms.length; i++ ) {
98
+ var divs = forms[ i ].getElementsByTagName( 'div' );
99
+
100
+ for ( var j = 0; j < divs.length; j++ ) {
101
+ var sitekey = divs[ j ].getAttribute( 'data-sitekey' );
102
+
103
+ if ( divs[ j ].className && divs[ j ].className.match( pattern ) && sitekey ) {
104
+ var params = {
105
+ 'sitekey': sitekey,
106
+ 'type': divs[ j ].getAttribute( 'data-type' ),
107
+ 'size': divs[ j ].getAttribute( 'data-size' ),
108
+ 'theme': divs[ j ].getAttribute( 'data-theme' ),
109
+ 'badge': divs[ j ].getAttribute( 'data-badge' ),
110
+ 'tabindex': divs[ j ].getAttribute( 'data-tabindex' )
111
+ };
112
+
113
+ var callback = divs[ j ].getAttribute( 'data-callback' );
114
+
115
+ if ( callback && 'function' == typeof window[ callback ] ) {
116
+ params[ 'callback' ] = window[ callback ];
117
+ }
118
+
119
+ var expired_callback = divs[ j ].getAttribute( 'data-expired-callback' );
120
+
121
+ if ( expired_callback && 'function' == typeof window[ expired_callback ] ) {
122
+ params[ 'expired-callback' ] = window[ expired_callback ];
123
+ }
124
+
125
+ var widget_id = grecaptcha.render( divs[ j ], params );
126
+ recaptchaWidgets.push( widget_id );
127
+ break;
128
+ }
129
+ }
130
+ }
131
+ };
132
+
133
+ document.addEventListener( 'wpcf7submit', function( event ) {
134
+ switch ( event.detail.status ) {
135
+ case 'spam':
136
+ case 'mail_sent':
137
+ case 'mail_failed':
138
+ for ( var i = 0; i < recaptchaWidgets.length; i++ ) {
139
+ grecaptcha.reset( recaptchaWidgets[ i ] );
140
+ }
141
+ }
142
+ }, false );
143
+ </script>
144
+ <?php
145
+
146
+ }
147
+ // See `iqfix_wpcf7_manage_hooks` callback above
148
+
149
+
150
+ /**
151
+ * reCaptcha Callback
152
+ *
153
+ * The following function was not written by IQComputing and is included in
154
+ * Contact Form 7 v5.0.5
155
+ * contact-form-7\modules\recaptcha.php LN326
156
+ *
157
+ * @param WPCF7_FormTag $tag
158
+ *
159
+ * @return String $html
160
+ */
161
+ function iqfix_wpcf7_recaptcha_form_tag_handler( $tag ) {
162
+
163
+ if ( ! wp_script_is( 'google-recaptcha', 'registered' ) ) {
164
+ wpcf7_recaptcha_enqueue_scripts();
165
+ }
166
+
167
+ wp_enqueue_script( 'google-recaptcha' );
168
+
169
+ $atts = array();
170
+
171
+ $recaptcha = WPCF7_RECAPTCHA::get_instance();
172
+ $atts['data-sitekey'] = $recaptcha->get_sitekey();
173
+ $atts['data-type'] = $tag->get_option( 'type', '(audio|image)', true );
174
+ $atts['data-size'] = $tag->get_option(
175
+ 'size', '(compact|normal|invisible)', true );
176
+ $atts['data-theme'] = $tag->get_option( 'theme', '(dark|light)', true );
177
+ $atts['data-badge'] = $tag->get_option(
178
+ 'badge', '(bottomright|bottomleft|inline)', true );
179
+ $atts['data-tabindex'] = $tag->get_option( 'tabindex', 'signed_int', true );
180
+ $atts['data-callback'] = $tag->get_option( 'callback', '', true );
181
+ $atts['data-expired-callback'] =
182
+ $tag->get_option( 'expired_callback', '', true );
183
+
184
+ $atts['class'] = $tag->get_class_option(
185
+ wpcf7_form_controls_class( $tag->type, 'g-recaptcha' ) );
186
+ $atts['id'] = $tag->get_id_option();
187
+
188
+ $html = sprintf( '<div %1$s></div>', wpcf7_format_atts( $atts ) );
189
+ $html .= iqfix_wpcf7_recaptcha_noscript(
190
+ array( 'sitekey' => $atts['data-sitekey'] ) );
191
+ $html = sprintf( '<div class="wpcf7-form-control-wrap">%s</div>', $html );
192
+
193
+ return $html;
194
+
195
+ }
196
+ // See `iqfix_wpcf7_add_recaptcha_tag` callback above.
197
+
198
+
199
+ /**
200
+ * Display reCaptcha noscript tag should javacript be disabled.
201
+ *
202
+ * The following function was not written by IQComputing and is included in
203
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
204
+ * contact-form-7\modules\recaptcha.php LN360
205
+ *
206
+ * @param Array $args
207
+ *
208
+ * @return String
209
+ */
210
+ function iqfix_wpcf7_recaptcha_noscript( $args = '' ) {
211
+
212
+ $args = wp_parse_args( $args, array(
213
+ 'sitekey' => '',
214
+ ) );
215
+
216
+ if ( empty( $args['sitekey'] ) ) {
217
+ return;
218
+ }
219
+
220
+ $url = add_query_arg( 'k', $args['sitekey'],
221
+ 'https://www.google.com/recaptcha/api/fallback' );
222
+
223
+ ob_start();
224
+ ?>
225
+
226
+ <noscript>
227
+ <div style="width: 302px; height: 422px;">
228
+ <div style="width: 302px; height: 422px; position: relative;">
229
+ <div style="width: 302px; height: 422px; position: absolute;">
230
+ <iframe src="<?php echo esc_url( $url ); ?>" frameborder="0" scrolling="no" style="width: 302px; height:422px; border-style: none;">
231
+ </iframe>
232
+ </div>
233
+ <div style="width: 300px; height: 60px; border-style: none; bottom: 12px; left: 25px; margin: 0px; padding: 0px; right: 25px; background: #f9f9f9; border: 1px solid #c1c1c1; border-radius: 3px;">
234
+ <textarea id="g-recaptcha-response" name="g-recaptcha-response" class="g-recaptcha-response" style="width: 250px; height: 40px; border: 1px solid #c1c1c1; margin: 10px 25px; padding: 0px; resize: none;">
235
+ </textarea>
236
+ </div>
237
+ </div>
238
+ </div>
239
+ </noscript>
240
+ <?php
241
+ return ob_get_clean();
242
+ }
243
+
244
+
245
+ /**
246
+ * Verify submission is legitimate, verify reCaptcha response
247
+ *
248
+ * The following function was not written by IQComputing and is included in
249
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
250
+ * contact-form-7\modules\recaptcha.php LN395
251
+ *
252
+ * @param Boolean $spam
253
+ *
254
+ * @return Boolean $spam
255
+ */
256
+ function iqfix_wpcf7_recaptcha_check_with_google( $spam ) {
257
+
258
+ if ( $spam ) {
259
+ return $spam;
260
+ }
261
+
262
+ $contact_form = wpcf7_get_current_contact_form();
263
+
264
+ if ( ! $contact_form ) {
265
+ return $spam;
266
+ }
267
+
268
+ $tags = $contact_form->scan_form_tags( array( 'type' => 'recaptcha' ) );
269
+
270
+ if ( empty( $tags ) ) {
271
+ return $spam;
272
+ }
273
+
274
+ $recaptcha = IQFix_ReCaptcha::get_instance();
275
+
276
+ if( ! $recaptcha->is_active() ) {
277
+ return $spam;
278
+ }
279
+
280
+ $response_token = wpcf7_recaptcha_response();
281
+
282
+ $spam = ! $recaptcha->verify( $response_token );
283
+
284
+ return $spam;
285
+
286
+ }
287
+ // See `iqfix_wpcf7_manage_hooks` callback above
288
+
289
+
290
+ /**
291
+ * Grab and return the posted reCaptcha response
292
+ *
293
+ * The following function was not written by IQComputing and is included in
294
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
295
+ * contact-form-7\modules\recaptcha.php LN509
296
+ *
297
+ * @return String|FALSE
298
+ */
299
+ function wpcf7_recaptcha_response() {
300
+
301
+ if ( isset( $_POST['g-recaptcha-response'] ) ) {
302
+ return $_POST['g-recaptcha-response'];
303
+ }
304
+
305
+ return false;
306
+
307
+ }
308
+
309
+
310
+ /**
311
+ * Add [recaptcha] to Contact Form 7 field list
312
+ *
313
+ * The following function was not written by IQComputing and is included in
314
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
315
+ * contact-form-7\modules\recaptcha.php LN426
316
+ *
317
+ * @return void
318
+ */
319
+ function iqfix_wpcf7_add_tag_generator_recaptcha() {
320
+
321
+ $tag_generator = WPCF7_TagGenerator::get_instance();
322
+ $tag_generator->add(
323
+ 'recaptcha',
324
+ esc_html__( 'reCAPTCHA', 'iqc' ),
325
+ 'iqfix_wpcf7_tag_generator_recaptcha',
326
+ array( 'nameless' => 1 )
327
+ );
328
+
329
+ }
330
+ add_action( 'wpcf7_admin_init', 'iqfix_wpcf7_add_tag_generator_recaptcha', 45 );
331
+
332
+
333
+ /**
334
+ * Show [recaptcha] field settings
335
+ *
336
+ * The following function was not written by IQComputing and is included in
337
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
338
+ * contact-form-7\modules\recaptcha.php LN432
339
+ *
340
+ * @param WPCF7_ContactForm $contact_form
341
+ * @param Array $args
342
+ *
343
+ * @return void
344
+ */
345
+ function iqfix_wpcf7_tag_generator_recaptcha( $contact_form, $args = '' ) {
346
+
347
+ $args = wp_parse_args( $args, array() );
348
+ $recaptcha = IQFix_ReCaptcha::get_instance();
349
+
350
+ if ( ! $recaptcha->is_active() ) {
351
+
352
+ ?>
353
+ <div class="control-box">
354
+ <fieldset>
355
+ <legend><?php echo sprintf( esc_html( __( "To use reCAPTCHA, first you need to install an API key pair. For more details, see %s.", 'iqc' ) ), wpcf7_link( __( 'https://contactform7.com/recaptcha/', 'iqc' ), __( 'reCAPTCHA', 'iqc' ) ) ); ?></legend>
356
+ </fieldset>
357
+ </div>
358
+ <?php
359
+
360
+ return;
361
+ }
362
+
363
+ $description = __( "Generate a form-tag for a reCAPTCHA widget. For more details, see %s.", 'iqc' );
364
+ $desc_link = wpcf7_link( __( 'https://contactform7.com/recaptcha/', 'iqc' ), __( 'reCAPTCHA', 'iqc' ) );
365
+
366
+ ?>
367
+ <div class="control-box">
368
+ <fieldset>
369
+ <legend><?php echo sprintf( esc_html( $description ), $desc_link ); ?></legend>
370
+
371
+ <table class="form-table">
372
+ <tbody>
373
+ <tr>
374
+ <th scope="row"><?php echo esc_html( __( 'Size', 'iqc' ) ); ?></th>
375
+ <td>
376
+ <fieldset>
377
+ <legend class="screen-reader-text"><?php echo esc_html( __( 'Size', 'iqc' ) ); ?></legend>
378
+ <label for="<?php echo esc_attr( $args['content'] . '-size-normal' ); ?>"><input type="radio" name="size" class="option default" id="<?php echo esc_attr( $args['content'] . '-size-normal' ); ?>" value="normal" checked="checked" /> <?php echo esc_html( __( 'Normal', 'iqc' ) ); ?></label>
379
+ <br />
380
+ <label for="<?php echo esc_attr( $args['content'] . '-size-compact' ); ?>"><input type="radio" name="size" class="option" id="<?php echo esc_attr( $args['content'] . '-size-compact' ); ?>" value="compact" /> <?php echo esc_html( __( 'Compact', 'iqc' ) ); ?></label>
381
+ </fieldset>
382
+ </td>
383
+ </tr>
384
+
385
+ <tr>
386
+ <th scope="row"><?php echo esc_html( __( 'Theme', 'iqc' ) ); ?></th>
387
+ <td>
388
+ <fieldset>
389
+ <legend class="screen-reader-text"><?php echo esc_html( __( 'Theme', 'iqc' ) ); ?></legend>
390
+ <label for="<?php echo esc_attr( $args['content'] . '-theme-light' ); ?>"><input type="radio" name="theme" class="option default" id="<?php echo esc_attr( $args['content'] . '-theme-light' ); ?>" value="light" checked="checked" /> <?php echo esc_html( __( 'Light', 'iqc' ) ); ?></label>
391
+ <br />
392
+ <label for="<?php echo esc_attr( $args['content'] . '-theme-dark' ); ?>"><input type="radio" name="theme" class="option" id="<?php echo esc_attr( $args['content'] . '-theme-dark' ); ?>" value="dark" /> <?php echo esc_html( __( 'Dark', 'iqc' ) ); ?></label>
393
+ </fieldset>
394
+ </td>
395
+ </tr>
396
+
397
+ <tr>
398
+ <th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-id' ); ?>"><?php echo esc_html( __( 'Id attribute', 'iqc' ) ); ?></label></th>
399
+ <td><input type="text" name="id" class="idvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-id' ); ?>" /></td>
400
+ </tr>
401
+
402
+ <tr>
403
+ <th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-class' ); ?>"><?php echo esc_html( __( 'Class attribute', 'iqc' ) ); ?></label></th>
404
+ <td><input type="text" name="class" class="classvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-class' ); ?>" /></td>
405
+ </tr>
406
+
407
+ </tbody>
408
+ </table>
409
+ </fieldset>
410
+ </div>
411
+
412
+ <div class="insert-box">
413
+ <input type="text" name="recaptcha" class="tag code" readonly="readonly" onfocus="this.select()" />
414
+
415
+ <div class="submitbox">
416
+ <input type="button" class="button button-primary insert-tag" value="<?php echo esc_attr( __( 'Insert Tag', 'iqc' ) ); ?>" />
417
+ </div>
418
+ </div>
419
+ <?php
420
+
421
+ }
422
+ // See `iqfix_wpcf7_add_tag_generator_recaptcha` callback above
423
+
424
+
425
+ /**
426
+ * The following class is supposed to use and replicate some functionality
427
+ * From Contact Form 7 v5.0.5
428
+ *
429
+ * @return void
430
+ */
431
+ function iqfix_recaptcha_class_init() {
432
+
433
+ if( ! class_exists( 'WPCF7_RECAPTCHA' ) ) {
434
+ return false;
435
+ }
436
+
437
+ Class IQFix_ReCaptcha extends WPCF7_RECAPTCHA {
438
+
439
+ const VERIFY_URL = 'https://www.google.com/recaptcha/api/siteverify';
440
+
441
+ private static $instance;
442
+ private $sitekeys;
443
+
444
+
445
+ /**
446
+ * Class initialization
447
+ *
448
+ * The following method was not written by IQComputing and is included in
449
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
450
+ * contact-form-7\modules\recaptcha.php LN202
451
+ *
452
+ * return void
453
+ */
454
+ private function __construct() {
455
+ $this->sitekeys = WPCF7::get_option( 'recaptcha' );
456
+ }
457
+
458
+
459
+ /**
460
+ * Singleton
461
+ *
462
+ * The following method was not written by IQComputing and is included in
463
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
464
+ * contact-form-7\modules\recaptcha.php LN10
465
+ *
466
+ * @return IQFix_ReCaptcha
467
+ */
468
+ public static function get_instance() {
469
+ if ( empty( self::$instance ) ) {
470
+ self::$instance = new self;
471
+ }
472
+
473
+ return self::$instance;
474
+ }
475
+
476
+
477
+ /**
478
+ * Check if reCaptcha is active
479
+ *
480
+ * The following method was not written by IQComputing and is included in
481
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
482
+ * contact-form-7\modules\recaptcha.php LN26
483
+ *
484
+ * @return Boolean
485
+ */
486
+ public function is_active() {
487
+ $sitekey = $this->get_sitekey();
488
+ $secret = $this->get_secret( $sitekey );
489
+ return $sitekey && $secret;
490
+ }
491
+
492
+
493
+ /**
494
+ * Get set reCaptcha sitekey
495
+ *
496
+ * The following method was not written by IQComputing and is included in
497
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
498
+ * contact-form-7\modules\recaptcha.php LN45
499
+ *
500
+ * @return String|FALSE
501
+ */
502
+ public function get_sitekey() {
503
+ if ( empty( $this->sitekeys )
504
+ or ! is_array( $this->sitekeys ) ) {
505
+ return false;
506
+ }
507
+
508
+ $sitekeys = array_keys( $this->sitekeys );
509
+
510
+ return $sitekeys[0];
511
+ }
512
+
513
+
514
+ /**
515
+ * Get set reCaptcha secret key
516
+ *
517
+ * The following method was not written by IQComputing and is included in
518
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
519
+ * contact-form-7\modules\recaptcha.php LN55
520
+ *
521
+ * @return String|FALSE
522
+ */
523
+ public function get_secret( $sitekey ) {
524
+ $sitekeys = (array) $this->sitekeys;
525
+
526
+ if ( isset( $sitekeys[$sitekey] ) ) {
527
+ return $sitekeys[$sitekey];
528
+ } else {
529
+ return false;
530
+ }
531
+ }
532
+
533
+
534
+ /**
535
+ * Verify reCaptcha Response
536
+ *
537
+ * The following method was not written by IQComputing and is included in
538
+ * Contact Form 7 v5.0.5 by Takayuki Miyoshi
539
+ * contact-form-7\modules\recaptcha.php LN65
540
+ *
541
+ * @param String $response_token
542
+ *
543
+ * @return Boolean $is_human
544
+ */
545
+ public function verify( $response_token ) {
546
+
547
+ $is_human = false;
548
+
549
+ if ( empty( $response_token ) ) {
550
+ return $is_human;
551
+ }
552
+
553
+ $url = self::VERIFY_URL;
554
+ $sitekey = $this->get_sitekey();
555
+ $secret = $this->get_secret( $sitekey );
556
+
557
+ $response = wp_safe_remote_post( $url, array(
558
+ 'body' => array(
559
+ 'secret' => $secret,
560
+ 'response' => $response_token,
561
+ 'remoteip' => $_SERVER['REMOTE_ADDR'],
562
+ ),
563
+ ) );
564
+
565
+ if ( 200 != wp_remote_retrieve_response_code( $response ) ) {
566
+ return $is_human;
567
+ }
568
+
569
+ $response = wp_remote_retrieve_body( $response );
570
+ $response = json_decode( $response, true );
571
+
572
+ $is_human = isset( $response['success'] ) && true == $response['success'];
573
+ return $is_human;
574
+
575
+ }
576
+
577
+ }
578
+
579
+ }
580
+ add_action( 'init', 'iqfix_recaptcha_class_init', 11 );
wpcf7-recaptcha.php ADDED
@@ -0,0 +1,213 @@
1
+ <?php
2
+ /**
3
+ * Plugin Name: Contact Form 7 - reCaptcha v2
4
+ * Description: ReCaptcha v2 Fix for Contact Form 7 5.1 and later.
5
+ * Version: 1.0
6
+ * Author: IQComputing
7
+ * Author URI: http://www.iqcomputing.com/
8
+ * License: GPL2
9
+ * Text Domain: iqc
10
+ * Domain Path: /languages
11
+ */
12
+
13
+
14
+ defined( 'ABSPATH' ) or die( 'You cannot be here.' );
15
+
16
+
17
+ /**
18
+ * IQComputing Contact Form 7 reCaptcha Fix, Deity Class
19
+ */
20
+ Class IQFix_WPCF7_Deity {
21
+
22
+ public static $version = '1.0.0';
23
+
24
+
25
+ /**
26
+ * Class Registration, set up necessities
27
+ *
28
+ * @return void
29
+ */
30
+ public static function register() {
31
+
32
+ $class = new self();
33
+ $class->include_files();
34
+ $class->action_hooks();
35
+
36
+ }
37
+
38
+
39
+ /**
40
+ * Include any necessary files
41
+ *
42
+ * @return void
43
+ */
44
+ private function include_files() {
45
+
46
+ $selection = WPCF7::get_option( 'iqfix_recaptcha' );
47
+
48
+ if( empty( $selection ) || version_compare( WPCF7_VERSION, '5.1', '<' ) ) {
49
+ return;
50
+ }
51
+
52
+ include_once( plugin_dir_path( __FILE__ ) . 'recaptcha-v2.php' );
53
+
54
+ }
55
+
56
+
57
+ /**
58
+ * Add any necessary action hooks
59
+ *
60
+ * @return void
61
+ */
62
+ private function action_hooks() {
63
+
64
+ add_action( 'admin_menu', array( $this, 'register_submenus' ) );
65
+
66
+ }
67
+
68
+
69
+ /**
70
+ * Register submenus for picking ReCaptcha versions
71
+ *
72
+ * @return void
73
+ */
74
+ public function register_submenus() {
75
+
76
+ add_submenu_page(
77
+ 'wpcf7',
78
+ esc_html__( 'reCaptcha Version', 'iqc' ),
79
+ esc_html__( 'reCaptcha Version', 'iqc' ),
80
+ WPCF7_ADMIN_READ_WRITE_CAPABILITY,
81
+ 'recaptcha-version',
82
+ array( $this, 'display_recaptcha_version_subpage' )
83
+ );
84
+
85
+ }
86
+
87
+
88
+ /**
89
+ * Display reCaptcha version subpage
90
+ *
91
+ * @return void
92
+ */
93
+ public function display_recaptcha_version_subpage() {
94
+
95
+ $updated = false;
96
+ $selection = WPCF7::get_option( 'iqfix_recaptcha' );
97
+
98
+ // Update Option
99
+ if( isset( $_POST, $_POST['iqfix_recaptcha_version'], $_POST['iqfix_wpcf7_submit'] ) ) {
100
+
101
+ if( ! empty( $_POST['iqfix_wpcf7_nonce'] ) && wp_verify_nonce( $_POST['iqfix_wpcf7_nonce'], 'iqfix_wpcf7_vers_select' ) ) {
102
+ $selection = intval( $_POST['iqfix_recaptcha_version'] );
103
+ WPCF7::update_option( 'iqfix_recaptcha', $selection );
104
+ $updated = true;
105
+ }
106
+
107
+ }
108
+
109
+ // Show simple message
110
+ if( version_compare( WPCF7_VERSION, '5.1', '<' ) ) {
111
+ printf(
112
+ '<div class="wrap"><h1>%1$s</h1><p>%2$s</p></div>',
113
+ esc_html__( 'Contact Form 7 - reCaptcha v2', 'iqc' ),
114
+ esc_html__( 'This version of Contact Form 7 already uses reCaptcha version 2, you do not need \'Contact Form 7 - reCaptcha v2\' installed at this time.', 'iqc' )
115
+ );
116
+ return;
117
+ }
118
+
119
+ ?>
120
+
121
+ <div class="wrap">
122
+
123
+ <?php
124
+
125
+ printf( '<h1>%1$s</h1>', esc_html__( 'Contact Form 7 - reCaptcha v2', 'iqc' ) );
126
+
127
+ if( $updated ) {
128
+ printf(
129
+ '<div class="notice updated"><p>%1$s</p></div>',
130
+ esc_html__( 'Your reCaptcha settings have been updated.', 'iqc' )
131
+ );
132
+ }
133
+
134
+ printf( '<p>%1$s %2$s <code>[recaptcha]</code> %3$s',
135
+ esc_html__( 'Select the version of reCaptcha you would like to use.', 'iqc' ),
136
+ esc_html__( 'You will still need to use the', 'iqc' ),
137
+ esc_html__( 'shortcode tag in your Contact Form 7 forms.', 'iqc' )
138
+ );
139
+ ?>
140
+
141
+ <form method="post">
142
+ <?php wp_nonce_field( 'iqfix_wpcf7_vers_select', 'iqfix_wpcf7_nonce' ); ?>
143
+ <select name="iqfix_recaptcha_version">
144
+ <option value="0"><?php esc_html_e( 'Default Usage', 'iqc' ); ?></option>
145
+ <option value="2" <?php selected( $selection, 2, true ); ?>><?php esc_html_e( 'reCaptcha Version 2', 'iqc' ); ?></option>
146
+ </select>
147
+
148
+ <?php submit_button( esc_html__( 'Submit', 'iqc' ), 'submit', 'iqfix_wpcf7_submit' ); ?>
149
+ </form>
150
+
151
+ </div>
152
+
153
+ <?php
154
+
155
+ }
156
+
157
+
158
+ } // END Class IQFix_WPCF7_Deity
159
+
160
+
161
+ /**
162
+ * Initialize Class
163
+ *
164
+ * @return void
165
+ */
166
+ function iqfix_wpcf7_deity_init() {
167
+
168
+ if( class_exists( 'WPCF7' ) ) {
169
+ IQFix_WPCF7_Deity::register();
170
+ }
171
+
172
+ }
173
+ add_action( 'plugins_loaded', 'iqfix_wpcf7_deity_init' );
174
+
175
+
176
+ /**
177
+ * Require parent ( Contact Form 7 ) plugin before activating this plugin.
178
+ *
179
+ * @source https://wordpress.stackexchange.com/a/131447/7355
180
+ * @author https://wordpress.stackexchange.com/users/44420/kosinix
181
+ *
182
+ * @return void
183
+ */
184
+ function iqfix_wpcf7_dependency_notice() {
185
+
186
+ if( ! ( is_admin() && current_user_can( 'activate_plugins' ) ) ) {
187
+ return;
188
+ }
189
+
190
+ if( ! is_plugin_active( 'contact-form-7/wp-contact-form-7.php' ) ) {
191
+
192
+ deactivate_plugins( plugin_basename( __FILE__ ) );
193
+ add_action( 'admin_notices', 'iqfix_wpcf7_dependency_notice_html' );
194
+
195
+ }
196
+
197
+ }
198
+ add_action( 'admin_init', 'iqfix_wpcf7_dependency_notice' );
199
+
200
+
201
+ /**
202
+ * Dependency Notice Callback
203
+ *
204
+ * @return void
205
+ */
206
+ function iqfix_wpcf7_dependency_notice_html() {
207
+
208
+ printf(
209
+ '<div class="notice error"><p>%1$s</p></div>',
210
+ esc_html__( 'The Contact Form 7 plugin is required for Contact Form 7 - reCaptcha v2 plugin to run. Please install and activate Contact Form 7 before activating the Contact Form 7 - ReCaptcha v2 plugin.', 'iqc' )
211
+ );
212
+
213
+ }