Add hcaptcha support and .env file

hcaptcha can be turned on in settings.py with parameters in the .env
file

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

board/forms.py

@@ -1,5 +1,7 @@
+from django.conf import settings
 from django.forms import ModelForm
 from board.models import Post
+from hcaptcha.fields import hCaptchaField
 
 
 class PostForm(ModelForm):
@@ -9,6 +11,8 @@ class PostForm(ModelForm):
     This requires the board and the IP address to be specified.
     """
 
+    hcaptcha = hCaptchaField() if settings.USE_HCAPTCHA else None
+
     class Meta:
         model = Post
         fields = ["subject", "name", "text", "image"]
@@ -27,6 +31,8 @@ class ReplyForm(PostForm):
     specified.
     """
 
+    hcaptcha = hCaptchaField() if settings.USE_HCAPTCHA else None
+
     class Meta:
         model = Post
         fields = ["name", "text", "bump", "image"]