Domains management pages

2 files changed, 148 insertions, 2 deletions

diff --git a/users/views/settings_identity.py b/users/views/settings_identity.py
index 8c52f9e..f35928a 100644
--- a/users/views/settings_identity.py
+++ b/users/views/settings_identity.py
@@ -17,6 +17,8 @@ class IdentitySettingsPage(SystemSettingsPage):
     at the bottom of the page. Don't add this to a URL directly - subclass!
     """
 
+    extra_context = {"top_section": "settings"}
+
     options_class = Config.IdentityOptions
     template_name = "settings/settings_identity.html"
 
diff --git a/users/views/settings_system.py b/users/views/settings_system.py
index 52ba349..bfd9fb7 100644
--- a/users/views/settings_system.py
+++ b/users/views/settings_system.py
@@ -1,13 +1,16 @@
+import re
 from functools import partial
 from typing import ClassVar, Dict
 
 from django import forms
-from django.shortcuts import redirect
+from django.db import models
+from django.shortcuts import get_object_or_404, redirect
 from django.utils.decorators import method_decorator
-from django.views.generic import FormView, RedirectView
+from django.views.generic import FormView, RedirectView, TemplateView
 
 from core.models import Config
 from users.decorators import identity_required
+from users.models import Domain
 
 
 @method_decorator(identity_required, name="dispatch")
@@ -27,6 +30,8 @@ class SystemSettingsPage(FormView):
     section: ClassVar[str]
     options: Dict[str, Dict[str, str]]
 
+    extra_context = {"top_section": "settings_system"}
+
     def get_form_class(self):
         # Create the fields dict from the config object
         fields = {}
@@ -93,3 +98,142 @@ class BasicPage(SystemSettingsPage):
             "help_text": "Used for logo background and other highlights",
         },
     }
+
+
+class DomainsPage(TemplateView):
+
+    template_name = "settings/settings_system_domains.html"
+
+    def get_context_data(self):
+        return {
+            "domains": Domain.objects.filter(local=True).order_by("domain"),
+            "section": "domains",
+        }
+
+
+class DomainCreatePage(FormView):
+
+    template_name = "settings/settings_system_domain_create.html"
+    extra_context = {"section": "domains"}
+
+    class form_class(forms.Form):
+        domain = forms.CharField(
+            help_text="The domain displayed as part of a user's identity.\nCannot be changed after the domain has been created.",
+        )
+        service_domain = forms.CharField(
+            help_text="Optional - a domain that serves Takahē if it is not running on the main domain.\nCannot be changed after the domain has been created.",
+            required=False,
+        )
+        public = forms.BooleanField(
+            help_text="If any user on this server can create identities here",
+            widget=forms.Select(choices=[(True, "Public"), (False, "Private")]),
+            required=False,
+        )
+
+        domain_regex = re.compile(
+            r"^((?!-))(xn--)?[a-z0-9][a-z0-9-_]{0,61}[a-z0-9]{0,1}\.(xn--)?([a-z0-9\-]{1,61}|[a-z0-9-]{1,30}\.[a-z]{2,})$"
+        )
+
+        def clean_domain(self):
+            if not self.domain_regex.match(self.cleaned_data["domain"]):
+                raise forms.ValidationError("This does not look like a domain name")
+            if Domain.objects.filter(
+                models.Q(domain=self.cleaned_data["domain"])
+                | models.Q(service_domain=self.cleaned_data["domain"])
+            ):
+                raise forms.ValidationError("This domain name is already in use")
+            return self.cleaned_data["domain"]
+
+        def clean_service_domain(self):
+            if not self.cleaned_data["service_domain"]:
+                return None
+            if not self.domain_regex.match(self.cleaned_data["service_domain"]):
+                raise forms.ValidationError("This does not look like a domain name")
+            if Domain.objects.filter(
+                models.Q(domain=self.cleaned_data["service_domain"])
+                | models.Q(service_domain=self.cleaned_data["service_domain"])
+            ):
+                raise forms.ValidationError("This domain name is already in use")
+            if self.cleaned_data.get("domain") == self.cleaned_data["service_domain"]:
+                raise forms.ValidationError(
+                    "You cannot have the domain and service domain be the same (did you mean to leave service domain blank?)"
+                )
+            return self.cleaned_data["service_domain"]
+
+    def form_valid(self, form):
+        Domain.objects.create(
+            domain=form.cleaned_data["domain"],
+            service_domain=form.cleaned_data["service_domain"] or None,
+            public=form.cleaned_data["public"],
+            local=True,
+        )
+        return redirect(Domain.urls.root)
+
+
+class DomainEditPage(FormView):
+
+    template_name = "settings/settings_system_domain_edit.html"
+    extra_context = {"section": "domains"}
+
+    class form_class(forms.Form):
+        domain = forms.CharField(
+            help_text="The domain displayed as part of a user's identity.\nCannot be changed after the domain has been created.",
+            disabled=True,
+        )
+        service_domain = forms.CharField(
+            help_text="Optional - a domain that serves Takahē if it is not running on the main domain.\nCannot be changed after the domain has been created.",
+            disabled=True,
+            required=False,
+        )
+        public = forms.BooleanField(
+            help_text="If any user on this server can create identities here",
+            widget=forms.Select(choices=[(True, "Public"), (False, "Private")]),
+            required=False,
+        )
+
+    def dispatch(self, request, domain):
+        self.domain = get_object_or_404(
+            Domain.objects.filter(local=True), domain=domain
+        )
+        return super().dispatch(request)
+
+    def get_context_data(self):
+        context = super().get_context_data()
+        context["domain"] = self.domain
+        return context
+
+    def form_valid(self, form):
+        self.domain.public = form.cleaned_data["public"]
+        self.domain.save()
+        return redirect(Domain.urls.root)
+
+    def get_initial(self):
+        return {
+            "domain": self.domain.domain,
+            "service_domain": self.domain.service_domain,
+            "public": self.domain.public,
+        }
+
+
+class DomainDeletePage(TemplateView):
+
+    template_name = "settings/settings_system_domain_delete.html"
+
+    def dispatch(self, request, domain):
+        self.domain = get_object_or_404(
+            Domain.objects.filter(public=True), domain=domain
+        )
+        return super().dispatch(request)
+
+    def get_context_data(self):
+        return {
+            "domain": self.domain,
+            "num_identities": self.domain.identities.count(),
+            "section": "domains",
+        }
+
+    def post(self, request):
+        if self.domain.identities.exists():
+            raise ValueError("Tried to delete domain with identities!")
+        self.domain.delete()
+        return redirect("/settings/system/domains/")