Resolve "Screening for signups"

api/funkwhale_api/moderation/dynamic_preferences_registry.py

@@ -1,7 +1,11 @@
 from dynamic_preferences import types
 from dynamic_preferences.registries import global_preferences_registry
 
+from rest_framework import serializers
+
 from funkwhale_api.common import preferences as common_preferences
+from funkwhale_api.common import serializers as common_serializers
+from funkwhale_api.common import utils as common_utils
 
 from . import models
 
@@ -40,3 +44,52 @@ class UnauthenticatedReportTypes(common_preferences.StringListPreference):
     help_text = "A list of categories for which external users (without an account) can submit a report"
     choices = models.REPORT_TYPES
     field_kwargs = {"choices": choices, "required": False}
+
+
+@global_preferences_registry.register
+class SignupApprovalEnabled(types.BooleanPreference):
+    show_in_api = True
+    section = moderation
+    name = "signup_approval_enabled"
+    verbose_name = "Enable manual sign-up validation"
+    help_text = "If enabled, new registrations will go to a moderation queue and need to be reviewed by moderators."
+    default = False
+
+
+CUSTOM_FIELDS_TYPES = [
+    "short_text",
+    "long_text",
+]
+
+
+class CustomFieldSerializer(serializers.Serializer):
+    label = serializers.CharField()
+    required = serializers.BooleanField(default=True)
+    input_type = serializers.ChoiceField(choices=CUSTOM_FIELDS_TYPES)
+
+
+class CustomFormSerializer(serializers.Serializer):
+    help_text = common_serializers.ContentSerializer(required=False, allow_null=True)
+    fields = serializers.ListField(
+        child=CustomFieldSerializer(), min_length=0, max_length=10, required=False
+    )
+
+    def validate_help_text(self, v):
+        if not v:
+            return
+        v["html"] = common_utils.render_html(
+            v["text"], content_type=v["content_type"], permissive=True
+        )
+        return v
+
+
+@global_preferences_registry.register
+class SignupFormCustomization(common_preferences.SerializedPreference):
+    show_in_api = True
+    section = moderation
+    name = "signup_form_customization"
+    verbose_name = "Sign-up form customization"
+    help_text = "Configure custom fields and help text for your sign-up form"
+    required = False
+    default = {}
+    data_serializer_class = CustomFormSerializer