313 lines
11 KiB
Python
313 lines
11 KiB
Python
from django import forms
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from django.core.exceptions import PermissionDenied
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from django.db import models
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from django.http import JsonResponse
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from django.shortcuts import get_object_or_404, redirect, render
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from django.utils.decorators import method_decorator
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from django.views.generic import FormView, TemplateView, View
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from activities.models import (
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Post,
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PostInteraction,
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PostInteractionStates,
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PostStates,
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TimelineEvent,
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)
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from core.html import html_to_plaintext
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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.shortcuts import by_handle_or_404
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class Individual(TemplateView):
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template_name = "activities/post.html"
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def get(self, request, handle, post_id):
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self.identity = by_handle_or_404(self.request, handle, local=False)
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self.post_obj = get_object_or_404(self.identity.posts, pk=post_id)
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# If they're coming in looking for JSON, they want the actor
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accept = request.META.get("HTTP_ACCEPT", "text/html").lower()
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if (
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"application/json" in accept
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or "application/ld" in accept
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or "application/activity" in accept
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):
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# Return post JSON
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return self.serve_object()
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else:
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# Show normal page
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return super().get(request)
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def get_context_data(self):
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return {
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"identity": self.identity,
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"post": self.post_obj,
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"interactions": PostInteraction.get_post_interactions(
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[self.post_obj],
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self.request.identity,
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),
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"link_original": True,
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"replies": Post.objects.filter(
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models.Q(
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visibility__in=[
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Post.Visibilities.public,
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Post.Visibilities.local_only,
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Post.Visibilities.unlisted,
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]
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)
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| models.Q(
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visibility=Post.Visibilities.followers,
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author__inbound_follows__source=self.identity,
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)
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| models.Q(
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visibility=Post.Visibilities.mentioned,
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mentions=self.identity,
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),
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in_reply_to=self.post_obj.object_uri,
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)
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.distinct()
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.order_by("published", "created"),
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}
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def serve_object(self):
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# If this not a local post, redirect to its canonical URI
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if not self.post_obj.local:
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return redirect(self.post_obj.object_uri)
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return JsonResponse(
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canonicalise(self.post_obj.to_ap(), include_security=True),
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content_type="application/activity+json",
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)
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@method_decorator(identity_required, name="dispatch")
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class Like(View):
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"""
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Adds/removes a like from the current identity to the post
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"""
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undo = False
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def post(self, request, handle, post_id):
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identity = by_handle_or_404(self.request, handle, local=False)
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post = get_object_or_404(
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identity.posts.prefetch_related("attachments"), pk=post_id
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)
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if self.undo:
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# Undo any likes on the post
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for interaction in PostInteraction.objects.filter(
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type=PostInteraction.Types.like,
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identity=request.identity,
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post=post,
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):
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interaction.transition_perform(PostInteractionStates.undone)
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else:
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# Make a like on this post if we didn't already
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PostInteraction.objects.get_or_create(
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type=PostInteraction.Types.like,
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identity=request.identity,
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post=post,
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)
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# Return either a redirect or a HTMX snippet
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if request.htmx:
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return render(
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request,
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"activities/_like.html",
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{
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"post": post,
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"interactions": {"like": set() if self.undo else {post.pk}},
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},
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)
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return redirect(post.urls.view)
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@method_decorator(identity_required, name="dispatch")
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class Boost(View):
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"""
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Adds/removes a boost from the current identity to the post
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"""
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undo = False
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def post(self, request, handle, post_id):
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identity = by_handle_or_404(self.request, handle, local=False)
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post = get_object_or_404(identity.posts, pk=post_id)
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if self.undo:
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# Undo any boosts on the post
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for interaction in PostInteraction.objects.filter(
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type=PostInteraction.Types.boost,
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identity=request.identity,
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post=post,
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):
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interaction.transition_perform(PostInteractionStates.undone)
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else:
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# Make a boost on this post if we didn't already
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PostInteraction.objects.get_or_create(
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type=PostInteraction.Types.boost,
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identity=request.identity,
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post=post,
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)
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# Return either a redirect or a HTMX snippet
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if request.htmx:
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return render(
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request,
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"activities/_boost.html",
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{
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"post": post,
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"interactions": {"boost": set() if self.undo else {post.pk}},
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},
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)
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return redirect(post.urls.view)
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@method_decorator(identity_required, name="dispatch")
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class Delete(TemplateView):
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"""
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Deletes a post
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"""
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template_name = "activities/post_delete.html"
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def dispatch(self, request, handle, post_id):
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# Make sure the request identity owns the post!
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if handle != request.identity.handle:
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raise PermissionDenied("Post author is not requestor")
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self.identity = by_handle_or_404(self.request, handle, local=False)
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self.post_obj = get_object_or_404(self.identity.posts, pk=post_id)
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return super().dispatch(request)
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def get_context_data(self):
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return {"post": self.post_obj}
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def post(self, request):
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self.post_obj.transition_perform(PostStates.deleted)
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return redirect("/")
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@method_decorator(identity_required, name="dispatch")
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class Compose(FormView):
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template_name = "activities/compose.html"
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class form_class(forms.Form):
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id = forms.IntegerField(
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required=False,
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widget=forms.HiddenInput(),
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)
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text = forms.CharField(
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widget=forms.Textarea(
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attrs={
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"placeholder": "What's on your mind?",
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},
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)
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)
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visibility = forms.ChoiceField(
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choices=[
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(Post.Visibilities.public, "Public"),
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(Post.Visibilities.local_only, "Local Only"),
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(Post.Visibilities.unlisted, "Unlisted"),
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(Post.Visibilities.followers, "Followers & Mentioned Only"),
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(Post.Visibilities.mentioned, "Mentioned Only"),
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],
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)
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content_warning = forms.CharField(
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required=False,
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label=Config.lazy_system_value("content_warning_text"),
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widget=forms.TextInput(
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attrs={
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"placeholder": Config.lazy_system_value("content_warning_text"),
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},
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),
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help_text="Optional - Post will be hidden behind this text until clicked",
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)
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reply_to = forms.CharField(widget=forms.HiddenInput(), required=False)
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def clean_text(self):
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text = self.cleaned_data.get("text")
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if not text:
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return text
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length = len(text)
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if length > Config.system.post_length:
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raise forms.ValidationError(
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f"Maximum post length is {Config.system.post_length} characters (you have {length})"
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)
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return text
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def get_initial(self):
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initial = super().get_initial()
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if self.post_obj:
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initial.update(
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{
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"id": self.post_obj.id,
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"reply_to": self.reply_to.pk if self.reply_to else "",
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"visibility": self.post_obj.visibility,
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"text": html_to_plaintext(self.post_obj.content),
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"content_warning": self.post_obj.summary,
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}
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)
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else:
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initial[
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"visibility"
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] = self.request.identity.config_identity.default_post_visibility
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if self.reply_to:
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initial["reply_to"] = self.reply_to.pk
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if self.reply_to.visibility == Post.Visibilities.public:
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initial["visibility"] = Post.Visibilities.unlisted
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else:
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initial["visibility"] = self.reply_to.visibility
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initial["text"] = f"@{self.reply_to.author.handle} "
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return initial
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def form_valid(self, form):
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post_id = form.cleaned_data.get("id")
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if post_id:
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post = get_object_or_404(self.request.identity.posts, pk=post_id)
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post.edit_local(
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content=form.cleaned_data["text"],
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summary=form.cleaned_data.get("content_warning"),
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visibility=form.cleaned_data["visibility"],
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)
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# Should there be a timeline event for edits?
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# E.g. "@user edited #123"
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post.transition_perform(PostStates.edited)
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else:
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post = Post.create_local(
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author=self.request.identity,
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content=form.cleaned_data["text"],
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summary=form.cleaned_data.get("content_warning"),
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visibility=form.cleaned_data["visibility"],
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reply_to=self.reply_to,
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)
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# Add their own timeline event for immediate visibility
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TimelineEvent.add_post(self.request.identity, post)
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return redirect("/")
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def dispatch(self, request, handle=None, post_id=None, *args, **kwargs):
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self.post_obj = None
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if handle and post_id:
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# Make sure the request identity owns the post!
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if handle != request.identity.handle:
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raise PermissionDenied("Post author is not requestor")
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self.post_obj = get_object_or_404(request.identity.posts, pk=post_id)
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# Grab the reply-to post info now
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self.reply_to = None
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reply_to_id = request.POST.get("reply_to") or request.GET.get("reply_to")
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if reply_to_id:
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try:
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self.reply_to = Post.objects.get(pk=reply_to_id)
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except Post.DoesNotExist:
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pass
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# Keep going with normal rendering
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return super().dispatch(request, *args, **kwargs)
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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["reply_to"] = self.reply_to
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return context
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