From 993d81c2ce98a6579b3110a6013c00090dfddaea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Sieb=C3=B6rger?= <drs@sieborger.nom.za>
Date: Mon, 29 Jan 2018 14:58:42 +0200
Subject: Allow the list subscription form to be protected from spam bots using
 reCAPTCHA.

---
 Mailman/Cgi/listinfo.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'Mailman/Cgi/listinfo.py')

diff --git a/Mailman/Cgi/listinfo.py b/Mailman/Cgi/listinfo.py
index b8704486..91f5b6bb 100644
--- a/Mailman/Cgi/listinfo.py
+++ b/Mailman/Cgi/listinfo.py
@@ -243,6 +243,16 @@ def list_listinfo(mlist, lang):
     replacements['<mm-displang-box>'] = displang
     replacements['<mm-lang-form-start>'] = mlist.FormatFormStart('listinfo')
     replacements['<mm-fullname-box>'] = mlist.FormatBox('fullname', size=30)
+    # If reCAPTCHA is enabled, display its user interface
+    if mm_cfg.RECAPTCHA_SITE_KEY:
+        replacements['<mm-recaptcha-ui>'] = (
+            """<tr><td>&nbsp;</td><td>
+            <script src="https://www.google.com/recaptcha/api.js"></script>
+            <div class="g-recaptcha" data-sitekey="%s"></div>
+            </td></tr>"""
+            % mm_cfg.RECAPTCHA_SITE_KEY)
+    else:
+        replacements['<mm-recaptcha-ui>'] = ''
 
     # Do the expansion.
     doc.AddItem(mlist.ParseTags('listinfo.html', replacements, lang))
-- 
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