398 lines
14 KiB
Python
398 lines
14 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.decorators import method_decorator
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from django.utils.feedgenerator import Rss201rev2Feed
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from django.utils.xmlutils import SimplerXMLGenerator
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from django.views.decorators.vary import vary_on_headers
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from django.views.generic import FormView, ListView
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from activities.models import Post
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from activities.services import SearchService, 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.models import Domain, FollowStates, Identity
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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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with_replies = False
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def get(self, request, handle):
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# Grab the handle if we have it (no live fetching here)
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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=False,
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)
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# If it's remote, redirect to its profile page
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if not self.identity.local:
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if self.identity.profile_uri:
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return redirect(self.identity.profile_uri)
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elif self.identity.actor_uri:
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# gup.pe topic actors don't have profile URLs
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return redirect(self.identity.actor_uri)
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else:
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return Http404("Unknown actor")
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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(None).identity_public(
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self.identity,
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include_boosts=self.identity.config_identity.boosts_on_profile,
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include_replies=self.with_replies,
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)
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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["public_styling"] = True
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context["post_count"] = self.identity.posts.count()
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context["pinned_posts"] = TimelineService(self.identity).identity_pinned()
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if self.with_replies:
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context["section"] = "replies"
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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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return context
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class FeedWithImages(Rss201rev2Feed):
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"""Extended Feed class to attach multiple images."""
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def rss_attributes(self):
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attrs = super().rss_attributes()
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attrs["xmlns:media"] = "http://search.yahoo.com/mrss/"
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attrs["xmlns:webfeeds"] = "http://webfeeds.org/rss/1.0"
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return attrs
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def add_root_elements(self, handler: SimplerXMLGenerator):
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super().add_root_elements(handler)
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handler.startElement("image", {})
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handler.addQuickElement("url", self.feed["image"]["url"])
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handler.addQuickElement("title", self.feed["image"]["title"])
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handler.addQuickElement("link", self.feed["image"]["link"])
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handler.endElement("image")
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handler.addQuickElement(
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"webfeeds:icon",
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self.feed["image"]["url"],
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)
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def add_item_elements(self, handler: SimplerXMLGenerator, item):
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super().add_item_elements(handler, item)
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for image in item["images"]:
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handler.startElement(
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"media:content",
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{
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"url": image["url"],
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"type": image["mime_type"],
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"fileSize": image["length"],
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"medium": "image",
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},
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)
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if image["description"]:
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handler.addQuickElement(
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"media:description", image["description"], {"type": "plain"}
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)
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handler.endElement("media:content")
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for hashtag in item["hashtags"]:
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handler.addQuickElement("category", hashtag)
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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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feed_type = FeedWithImages
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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 feed_extra_kwargs(self, identity: Identity):
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"""
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Return attached images data to allow `FeedWithImages.add_item_elements()`
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to attach multiple images for each `<item>`.
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"""
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image = {
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"url": identity.local_icon_url().absolute,
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"title": identity.name,
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"link": identity.absolute_profile_uri(),
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}
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return {"image": image}
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def items(self, identity: Identity):
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return [
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e.subject_post
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for e in TimelineService(None).identity_public(
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identity, include_boosts=False
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)[:20]
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]
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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_extra_kwargs(self, item: Post):
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"""
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Return attached images data to allow `FeedWithImages.add_root_elements()`
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to add `<image>` as RSS feed icon.
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"""
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images = []
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for attachment in item.attachments.all():
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images.append(
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{
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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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"description": (attachment.name),
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}
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)
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return {"images": images, "hashtags": item.hashtags or []}
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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["section"] = "follows"
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context["public_styling"] = 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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class IdentitySearch(FormView):
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"""
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Allows an identity's posts to be searched.
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"""
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template_name = "identity/search.html"
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class form_class(forms.Form):
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query = forms.CharField(help_text="The text to search for")
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def dispatch(self, request, handle):
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self.identity = by_handle_or_404(self.request, handle)
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if not Config.load_identity(self.identity).search_enabled:
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raise Http404("Search not enabled")
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return super().dispatch(request, identity=self.identity)
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def form_valid(self, form):
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self.results = SearchService(
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query=form.cleaned_data["query"], identity=self.identity
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).search_post_content()
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return self.form_invalid(form)
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context["identity"] = self.identity
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context["section"] = "search"
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context["public_styling"] = 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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context["results"] = getattr(self, "results", None)
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return context
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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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identity = IdentityService.create(
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user=self.request.user,
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username=username,
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domain=domain_instance,
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name=form.cleaned_data["name"],
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discoverable=form.cleaned_data["discoverable"],
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)
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self.request.session["identity_id"] = identity.id
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return redirect(identity.urls.view)
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context["user"] = self.request.user
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if len(context["form"].fields["domain"].choices) == 0:
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context["no_valid_domains"] = True
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return context
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