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from django import forms
from django.http import Http404, JsonResponse
from django.shortcuts import get_object_or_404, redirect, render
from django.utils.decorators import method_decorator
from django.views.generic import FormView, TemplateView, View
from activities.models import (
Post,
PostInteraction,
PostInteractionStates,
PostStates,
TimelineEvent,
)
from core.ld import canonicalise
from core.models import Config
from users.decorators import identity_required
from users.shortcuts import by_handle_or_404
class Individual(TemplateView):
template_name = "activities/post.html"
def get(self, request, handle, post_id):
self.identity = by_handle_or_404(self.request, handle, local=False)
self.post_obj = get_object_or_404(self.identity.posts, pk=post_id)
# If they're coming in looking for JSON, they want the actor
accept = request.META.get("HTTP_ACCEPT", "text/html").lower()
if (
"application/json" in accept
or "application/ld" in accept
or "application/activity" in accept
):
# Return post JSON
return self.serve_object()
else:
# Show normal page
return super().get(request)
def get_context_data(self):
return {
"identity": self.identity,
"post": self.post_obj,
"interactions": PostInteraction.get_post_interactions(
[self.post_obj],
self.request.identity,
),
}
def serve_object(self):
# If this not a local post, redirect to its canonical URI
if not self.post_obj.local:
return redirect(self.post_obj.object_uri)
return JsonResponse(canonicalise(self.post_obj.to_ap(), include_security=True))
@method_decorator(identity_required, name="dispatch")
class Like(View):
"""
Adds/removes a like from the current identity to the post
"""
undo = False
def post(self, request, handle, post_id):
identity = by_handle_or_404(self.request, handle, local=False)
post = get_object_or_404(
identity.posts.prefetch_related("attachments"), pk=post_id
)
if self.undo:
# Undo any likes on the post
for interaction in PostInteraction.objects.filter(
type=PostInteraction.Types.like,
identity=request.identity,
post=post,
):
interaction.transition_perform(PostInteractionStates.undone)
else:
# Make a like on this post if we didn't already
PostInteraction.objects.get_or_create(
type=PostInteraction.Types.like,
identity=request.identity,
post=post,
)
# Return either a redirect or a HTMX snippet
if request.htmx:
return render(
request,
"activities/_like.html",
{
"post": post,
"interactions": {"like": set() if self.undo else {post.pk}},
},
)
return redirect(post.urls.view)
@method_decorator(identity_required, name="dispatch")
class Boost(View):
"""
Adds/removes a boost from the current identity to the post
"""
undo = False
def post(self, request, handle, post_id):
identity = by_handle_or_404(self.request, handle, local=False)
post = get_object_or_404(identity.posts, pk=post_id)
if self.undo:
# Undo any boosts on the post
for interaction in PostInteraction.objects.filter(
type=PostInteraction.Types.boost,
identity=request.identity,
post=post,
):
interaction.transition_perform(PostInteractionStates.undone)
else:
# Make a boost on this post if we didn't already
PostInteraction.objects.get_or_create(
type=PostInteraction.Types.boost,
identity=request.identity,
post=post,
)
# Return either a redirect or a HTMX snippet
if request.htmx:
return render(
request,
"activities/_boost.html",
{
"post": post,
"interactions": {"boost": set() if self.undo else {post.pk}},
},
)
return redirect(post.urls.view)
@method_decorator(identity_required, name="dispatch")
class Delete(TemplateView):
"""
Deletes a post
"""
template_name = "activities/post_delete.html"
def dispatch(self, request, handle, post_id):
self.identity = by_handle_or_404(self.request, handle, local=False)
self.post_obj = get_object_or_404(self.identity.posts, pk=post_id)
# Make sure the request identity owns the post!
if self.post_obj.author != request.identity:
raise Http404("Post author is not requestor")
return super().dispatch(request)
def get_context_data(self):
return {"post": self.post_obj}
def post(self, request):
self.post_obj.transition_perform(PostStates.deleted)
return redirect("/")
@method_decorator(identity_required, name="dispatch")
class Compose(FormView):
template_name = "activities/compose.html"
class form_class(forms.Form):
text = forms.CharField(
widget=forms.Textarea(
attrs={
"placeholder": "What's on your mind?",
},
)
)
visibility = forms.ChoiceField(
choices=[
(Post.Visibilities.public, "Public"),
(Post.Visibilities.local_only, "Local Only"),
(Post.Visibilities.unlisted, "Unlisted"),
(Post.Visibilities.followers, "Followers & Mentioned Only"),
(Post.Visibilities.mentioned, "Mentioned Only"),
],
)
content_warning = forms.CharField(
required=False,
label=Config.lazy_system_value("content_warning_text"),
widget=forms.TextInput(
attrs={
"placeholder": Config.lazy_system_value("content_warning_text"),
},
),
help_text="Optional - Post will be hidden behind this text until clicked",
)
reply_to = forms.CharField(widget=forms.HiddenInput(), required=False)
def clean_text(self):
text = self.cleaned_data.get("text")
if not text:
return text
length = len(text)
if length > Config.system.post_length:
raise forms.ValidationError(
f"Maximum post length is {Config.system.post_length} characters (you have {length})"
)
return text
def get_initial(self):
initial = super().get_initial()
initial[
"visibility"
] = self.request.identity.config_identity.default_post_visibility
if self.reply_to:
initial["reply_to"] = self.reply_to.pk
initial["visibility"] = self.reply_to.visibility
initial["text"] = f"@{self.reply_to.author.handle} "
return initial
def form_valid(self, form):
post = Post.create_local(
author=self.request.identity,
content=form.cleaned_data["text"],
summary=form.cleaned_data.get("content_warning"),
visibility=form.cleaned_data["visibility"],
reply_to=self.reply_to,
)
# Add their own timeline event for immediate visibility
TimelineEvent.add_post(self.request.identity, post)
return redirect("/")
def dispatch(self, request, *args, **kwargs):
# Grab the reply-to post info now
self.reply_to = None
reply_to_id = self.request.POST.get("reply_to") or self.request.GET.get(
"reply_to"
)
if reply_to_id:
try:
self.reply_to = Post.objects.get(pk=reply_to_id)
except Post.DoesNotExist:
pass
# Keep going with normal rendering
return super().dispatch(request, *args, **kwargs)
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context["reply_to"] = self.reply_to
return context
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