Add hCaptcha backend

judge/utils/captcha.py

@@ -0,0 +1,20 @@
+try:
+    from snowpenguin.django.recaptcha2.fields import ReCaptchaField
+    from snowpenguin.django.recaptcha2.widgets import ReCaptchaWidget
+except ImportError:
+    ReCaptchaField = None
+    ReCaptchaWidget = None
+try:
+    from hcaptcha_field import hCaptchaField
+except ImportError:
+    hCaptchaField = None
+
+from django.conf import settings
+
+if not hasattr(settings, 'RECAPTCHA_PRIVATE_KEY') and ReCaptchaField is not None:
+    ReCaptchaField = None
+    ReCaptchaWidget = None
+elif not hasattr(settings, 'HCAPTCHA_SECRET') and hCaptchaField is not None:
+    hCaptchaField = None
+
+CaptchaField = ReCaptchaField or hCaptchaField

judge/views/register.py

@@ -13,7 +13,7 @@
 
 from judge.models import Language, Organization, Profile, TIMEZONE
 from judge.utils.mail import validate_email_domain
-from judge.utils.recaptcha import ReCaptchaField, ReCaptchaWidget
+from judge.utils.captcha import CaptchaField, ReCaptchaWidget
 from judge.utils.subscription import Subscription, newsletter_id
 from judge.widgets import Select2MultipleWidget, Select2Widget
 
@@ -33,8 +33,12 @@ class CustomRegistrationForm(RegistrationForm):
     if newsletter_id is not None:
         newsletter = forms.BooleanField(label=_('Subscribe to newsletter?'), initial=True, required=False)
 
-    if ReCaptchaField is not None:
-        captcha = ReCaptchaField(widget=ReCaptchaWidget())
+    if CaptchaField is not None:
+        if ReCaptchaWidget is not None:
+            captcha = CaptchaField(widget=ReCaptchaWidget())
+            is_recaptcha = True
+        else:
+            captcha = CaptchaField()
 
     def clean_email(self):
         if User.objects.filter(email=self.cleaned_data['email']).exists():

templates/registration/registration_form.html

@@ -126,7 +126,7 @@
             } catch (e) {}
         });
     </script>
-    {% if form.captcha %}
+    {% if form.captcha and form.is_recaptcha|default:false %}
         {{ recaptcha_init(LANGUAGE_CODE) }}
     {% endif %}
 {% endblock %}