Add settings option for reCAPTCHA proxies

Author: Xyene

README.md

@@ -32,6 +32,9 @@ And add your reCaptcha private and public key to your django settings.py:
 ```python
 RECAPTCHA_PRIVATE_KEY = 'your private key'
 RECAPTCHA_PUBLIC_KEY = 'your public key'
+# If you require reCaptcha to be loaded from somewhere other than https://google.com
+# (e.g. to bypass firewall restrictions), you can specify what proxy to use.
+# RECAPTCHA_PROXY_HOST = 'https://recaptcha.net'
 ```
 
 If you have to create the apikey for the domains managed by your django project, you can visit this <a href="https://www.google.com/recaptcha/admin">website</a>.

snowpenguin/django/recaptcha2/templates/snowpenguin/recaptcha/recaptcha_init.html

@@ -1 +1 @@
-<script src="https://www.google.com/recaptcha/api.js{% if explicit %}?onload=djangoRecaptchaOnLoadCallback&render=explicit{% if language %}&hl={{ language }}{% endif %}{% elif language %}?hl={{ language }}{% endif %}" async defer></script>
+<script src="{{ recaptcha_host }}/recaptcha/api.js{% if explicit %}?onload=djangoRecaptchaOnLoadCallback&render=explicit{% if language %}&hl={{ language }}{% endif %}{% elif language %}?hl={{ language }}{% endif %}" async defer></script>

snowpenguin/django/recaptcha2/templatetags/recaptcha2.py

@@ -35,6 +35,7 @@ def recaptcha_invisible_button(public_key=None, submit_label=None, extra_css_cla
     return {
         'generated_id': generated_id,
         'public_key': public_key or settings.RECAPTCHA_PUBLIC_KEY,
+        'recaptcha_host': getattr(settings, 'RECAPTCHA_PROXY_HOST', 'https://google.com'),
         'form_id': form_id,
         'submit_label': submit_label or _('Submit'),
         'extra_css_classes': extra_css_classes,