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https://github.com/jointakahe/takahe.git
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329 lines
12 KiB
Python
329 lines
12 KiB
Python
import string
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from django import forms
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from django.contrib.auth.decorators import login_required
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from django.contrib.syndication.views import Feed
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from django.core import validators
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from django.http import Http404, JsonResponse
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from django.shortcuts import redirect
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from django.utils import feedgenerator
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from django.utils.decorators import method_decorator
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from django.views.decorators.vary import vary_on_headers
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from django.views.generic import FormView, ListView, TemplateView, View
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from activities.models import Post, PostInteraction
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from activities.services import TimelineService
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from core.decorators import cache_page, cache_page_by_ap_json
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from core.ld import canonicalise
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from core.models import Config
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from users.decorators import identity_required
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from users.models import Domain, Follow, FollowStates, Identity, IdentityStates
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from users.services import IdentityService
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from users.shortcuts import by_handle_or_404
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@method_decorator(vary_on_headers("Accept"), name="dispatch")
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@method_decorator(cache_page_by_ap_json(public_only=True), name="dispatch")
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class ViewIdentity(ListView):
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"""
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Shows identity profile pages, and also acts as the Actor endpoint when
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approached with the right Accept header.
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"""
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template_name = "identity/view.html"
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paginate_by = 25
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def get(self, request, handle):
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# Make sure we understand this handle
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self.identity = by_handle_or_404(
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self.request,
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handle,
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local=False,
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fetch=True,
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)
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if (
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not self.identity.local
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and self.identity.data_age > Config.system.identity_max_age
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):
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self.identity.transition_perform(IdentityStates.outdated)
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# If they're coming in looking for JSON, they want the actor
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if request.ap_json:
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# Return actor info
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return self.serve_actor(self.identity)
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else:
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# Show normal page
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return super().get(request, identity=self.identity)
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def serve_actor(self, identity):
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# If this not a local actor, redirect to their canonical URI
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if not identity.local:
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return redirect(identity.actor_uri)
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return JsonResponse(
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canonicalise(identity.to_ap(), include_security=True),
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content_type="application/activity+json",
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)
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def get_queryset(self):
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return TimelineService(self.request.identity).identity_public(self.identity)
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def get_context_data(self):
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context = super().get_context_data()
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context["identity"] = self.identity
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context["follow"] = None
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context["reverse_follow"] = None
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context["interactions"] = PostInteraction.get_post_interactions(
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context["page_obj"],
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self.request.identity,
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)
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context["post_count"] = self.identity.posts.count()
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if self.identity.config_identity.visible_follows:
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context["followers_count"] = self.identity.inbound_follows.filter(
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state__in=FollowStates.group_active()
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).count()
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context["following_count"] = self.identity.outbound_follows.filter(
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state__in=FollowStates.group_active()
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).count()
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if self.request.identity:
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follow = Follow.maybe_get(self.request.identity, self.identity)
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if follow and follow.state in FollowStates.group_active():
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context["follow"] = follow
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reverse_follow = Follow.maybe_get(self.identity, self.request.identity)
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if reverse_follow and reverse_follow.state in FollowStates.group_active():
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context["reverse_follow"] = reverse_follow
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return context
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@method_decorator(
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cache_page("cache_timeout_identity_feed", public_only=True), name="__call__"
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)
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class IdentityFeed(Feed):
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"""
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Serves a local user's Public posts as an RSS feed
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"""
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def get_object(self, request, handle):
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return by_handle_or_404(
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request,
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handle,
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local=True,
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)
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def title(self, identity: Identity):
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return identity.name
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def description(self, identity: Identity):
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return f"Public posts from @{identity.handle}"
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def link(self, identity: Identity):
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return identity.absolute_profile_uri()
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def items(self, identity: Identity):
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return TimelineService(None).identity_public(identity)[:20]
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def item_description(self, item: Post):
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return item.safe_content_remote()
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def item_link(self, item: Post):
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return item.absolute_object_uri()
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def item_pubdate(self, item: Post):
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return item.published
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def item_enclosures(self, item: Post):
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attachment = item.attachments.first()
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if attachment is None:
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return []
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enc = feedgenerator.Enclosure(
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url=attachment.full_url().absolute,
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length=str(attachment.file.size),
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mime_type=attachment.mimetype,
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)
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return [enc]
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class IdentityFollows(ListView):
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"""
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Shows following/followers for an identity.
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"""
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template_name = "identity/follows.html"
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paginate_by = 25
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inbound = False
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def get(self, request, handle):
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self.identity = by_handle_or_404(
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self.request,
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handle,
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local=False,
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)
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if not Config.load_identity(self.identity).visible_follows:
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raise Http404("Hidden follows")
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return super().get(request, identity=self.identity)
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def get_queryset(self):
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if self.inbound:
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return IdentityService(self.identity).followers()
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else:
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return IdentityService(self.identity).following()
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def get_context_data(self):
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context = super().get_context_data()
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context["identity"] = self.identity
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context["inbound"] = self.inbound
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context["follows_page"] = True
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context["followers_count"] = self.identity.inbound_follows.filter(
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state__in=FollowStates.group_active()
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).count()
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context["following_count"] = self.identity.outbound_follows.filter(
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state__in=FollowStates.group_active()
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).count()
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context["post_count"] = self.identity.posts.count()
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return context
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@method_decorator(identity_required, name="dispatch")
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class ActionIdentity(View):
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def post(self, request, handle):
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identity = by_handle_or_404(self.request, handle, local=False)
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# See what action we should perform
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action = self.request.POST["action"]
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if action == "follow":
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IdentityService(identity).follow_from(self.request.identity)
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elif action == "unfollow":
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IdentityService(identity).unfollow_from(self.request.identity)
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elif action == "hide_boosts":
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IdentityService(identity).follow_from(self.request.identity, boosts=False)
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elif action == "show_boosts":
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IdentityService(identity).follow_from(self.request.identity, boosts=True)
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else:
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raise ValueError(f"Cannot handle identity action {action}")
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return redirect(identity.urls.view)
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@method_decorator(login_required, name="dispatch")
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class SelectIdentity(TemplateView):
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template_name = "identity/select.html"
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def get_context_data(self):
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return {
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"identities": Identity.objects.filter(users__pk=self.request.user.pk),
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}
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@method_decorator(login_required, name="dispatch")
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class ActivateIdentity(View):
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def get(self, request, handle):
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identity = by_handle_or_404(request, handle)
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if not identity.users.filter(pk=request.user.pk).exists():
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raise Http404()
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request.session["identity_id"] = identity.id
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# Get next URL, not allowing offsite links
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next = request.GET.get("next") or "/"
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if ":" in next:
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next = "/"
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return redirect("/")
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@method_decorator(login_required, name="dispatch")
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class CreateIdentity(FormView):
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template_name = "identity/create.html"
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class form_class(forms.Form):
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username = forms.CharField(
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help_text="Must be unique on your domain. Cannot be changed easily. Use only: a-z 0-9 _ -"
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)
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domain = forms.ChoiceField(
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help_text="Pick the domain to make this identity on. Cannot be changed later."
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)
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name = forms.CharField(
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help_text="The display name other users see. You can change this easily."
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)
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discoverable = forms.BooleanField(
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help_text="If this user is visible on the frontpage and in user directories.",
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initial=True,
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widget=forms.Select(
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choices=[(True, "Discoverable"), (False, "Not Discoverable")]
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),
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required=False,
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)
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def __init__(self, user, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.fields["domain"].choices = [
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(domain.domain, domain.domain)
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for domain in Domain.available_for_user(user)
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]
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self.user = user
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def clean_username(self):
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# Remove any leading @ and force it lowercase
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value = self.cleaned_data["username"].lstrip("@").lower()
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if not self.user.admin:
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# Apply username min length
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limit = int(Config.system.identity_min_length)
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validators.MinLengthValidator(limit)(value)
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# Apply username restrictions
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if value in Config.system.restricted_usernames.split():
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raise forms.ValidationError(
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"This username is restricted to administrators only."
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)
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if value in ["__system__"]:
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raise forms.ValidationError(
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"This username is reserved for system use."
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)
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# Validate it's all ascii characters
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for character in value:
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if character not in string.ascii_letters + string.digits + "_-":
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raise forms.ValidationError(
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"Only the letters a-z, numbers 0-9, dashes, and underscores are allowed."
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)
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return value
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def clean(self):
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# Check for existing users
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username = self.cleaned_data.get("username")
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domain = self.cleaned_data.get("domain")
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if (
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username
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and domain
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and Identity.objects.filter(
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username__iexact=username,
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domain=domain.lower(),
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).exists()
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):
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raise forms.ValidationError(f"{username}@{domain} is already taken")
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if not self.user.admin and (
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Identity.objects.filter(users=self.user).count()
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>= Config.system.identity_max_per_user
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):
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raise forms.ValidationError(
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f"You are not allowed more than {Config.system.identity_max_per_user} identities"
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)
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def get_form(self):
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form_class = self.get_form_class()
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return form_class(user=self.request.user, **self.get_form_kwargs())
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def form_valid(self, form):
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username = form.cleaned_data["username"]
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domain = form.cleaned_data["domain"]
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domain_instance = Domain.get_domain(domain)
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new_identity = Identity.objects.create(
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actor_uri=f"https://{domain_instance.uri_domain}/@{username}@{domain}/",
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username=username,
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domain_id=domain,
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name=form.cleaned_data["name"],
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local=True,
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discoverable=form.cleaned_data["discoverable"],
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)
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new_identity.users.add(self.request.user)
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new_identity.generate_keypair()
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self.request.session["identity_id"] = new_identity.id
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return redirect(new_identity.urls.view)
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