takahe/api/views/statuses.py

270 lines
8.3 KiB
Python

from datetime import timedelta
from typing import Literal
from django.http import HttpRequest
from django.shortcuts import get_object_or_404
from django.utils import timezone
from hatchway import ApiError, ApiResponse, Schema, api_view
from activities.models import (
Post,
PostAttachment,
PostInteraction,
PostInteractionStates,
TimelineEvent,
)
from activities.services import PostService
from api import schemas
from api.decorators import scope_required
from api.pagination import MastodonPaginator, PaginationResult
from core.models import Config
class PostPollSchema(Schema):
options: list[str]
expires_in: int
multiple: bool = False
hide_totals: bool = False
def dict(self):
return {
"type": "Question",
"mode": "anyOf" if self.multiple else "oneOf",
"options": [
{"name": name, "type": "Note", "votes": 0} for name in self.options
],
"voter_count": 0,
"end_time": timezone.now() + timedelta(seconds=self.expires_in),
}
class PostStatusSchema(Schema):
status: str
in_reply_to_id: str | None = None
sensitive: bool = False
spoiler_text: str | None = None
visibility: Literal["public", "unlisted", "private", "direct"] = "public"
language: str | None = None
scheduled_at: str | None = None
media_ids: list[str] = []
poll: PostPollSchema | None = None
class EditStatusSchema(Schema):
status: str
sensitive: bool = False
spoiler_text: str | None = None
language: str | None = None
media_ids: list[str] = []
def post_for_id(request: HttpRequest, id: str) -> Post:
"""
Common logic to get a Post object for an ID, taking visibility into
account.
"""
if request.identity:
queryset = Post.objects.not_hidden().visible_to(
request.identity, include_replies=True
)
else:
queryset = Post.objects.not_hidden().unlisted()
return get_object_or_404(queryset, pk=id)
@scope_required("write:statuses")
@api_view.post
def post_status(request, details: PostStatusSchema) -> schemas.Status:
# Check text length
if len(details.status) > Config.system.post_length:
raise ApiError(400, "Status is too long")
if len(details.status) == 0 and not details.media_ids:
raise ApiError(400, "Status is empty")
# Grab attachments
attachments = [get_object_or_404(PostAttachment, pk=id) for id in details.media_ids]
# Create the Post
visibility_map = {
"public": Post.Visibilities.public,
"unlisted": Post.Visibilities.unlisted,
"private": Post.Visibilities.followers,
"direct": Post.Visibilities.mentioned,
}
reply_post = None
if details.in_reply_to_id:
try:
reply_post = Post.objects.get(pk=details.in_reply_to_id)
except Post.DoesNotExist:
pass
post = Post.create_local(
author=request.identity,
content=details.status,
summary=details.spoiler_text,
sensitive=details.sensitive,
visibility=visibility_map[details.visibility],
reply_to=reply_post,
attachments=attachments,
question=details.poll.dict() if details.poll else None,
)
# Add their own timeline event for immediate visibility
TimelineEvent.add_post(request.identity, post)
return schemas.Status.from_post(post, identity=request.identity)
@scope_required("read:statuses")
@api_view.get
def status(request, id: str) -> schemas.Status:
post = post_for_id(request, id)
interactions = PostInteraction.get_post_interactions([post], request.identity)
return schemas.Status.from_post(
post, interactions=interactions, identity=request.identity
)
@scope_required("write:statuses")
@api_view.put
def edit_status(request, id: str, details: EditStatusSchema) -> schemas.Status:
post = post_for_id(request, id)
if post.author != request.identity:
raise ApiError(401, "Not the author of this status")
# Grab attachments
attachments = [get_object_or_404(PostAttachment, pk=id) for id in details.media_ids]
# Update all details, as the client must provide them all
post.edit_local(
content=details.status,
summary=details.spoiler_text,
sensitive=details.sensitive,
attachments=attachments,
)
return schemas.Status.from_post(post)
@scope_required("write:statuses")
@api_view.delete
def delete_status(request, id: str) -> schemas.Status:
post = post_for_id(request, id)
if post.author != request.identity:
raise ApiError(401, "Not the author of this status")
PostService(post).delete()
return schemas.Status.from_post(post, identity=request.identity)
@scope_required("read:statuses")
@api_view.get
def status_source(request, id: str) -> schemas.StatusSource:
post = post_for_id(request, id)
return schemas.StatusSource.from_post(post)
@scope_required("read:statuses")
@api_view.get
def status_context(request, id: str) -> schemas.Context:
post = post_for_id(request, id)
service = PostService(post)
ancestors, descendants = service.context(request.identity)
interactions = PostInteraction.get_post_interactions(
ancestors + descendants, request.identity
)
return schemas.Context(
ancestors=[
schemas.Status.from_post(
p, interactions=interactions, identity=request.identity
)
for p in reversed(ancestors)
],
descendants=[
schemas.Status.from_post(
p, interactions=interactions, identity=request.identity
)
for p in descendants
],
)
@scope_required("write:favourites")
@api_view.post
def favourite_status(request, id: str) -> schemas.Status:
post = post_for_id(request, id)
service = PostService(post)
service.like_as(request.identity)
interactions = PostInteraction.get_post_interactions([post], request.identity)
return schemas.Status.from_post(
post, interactions=interactions, identity=request.identity
)
@scope_required("write:favourites")
@api_view.post
def unfavourite_status(request, id: str) -> schemas.Status:
post = post_for_id(request, id)
service = PostService(post)
service.unlike_as(request.identity)
interactions = PostInteraction.get_post_interactions([post], request.identity)
return schemas.Status.from_post(
post, interactions=interactions, identity=request.identity
)
@api_view.get
def favourited_by(
request: HttpRequest,
id: str,
max_id: str | None = None,
since_id: str | None = None,
min_id: str | None = None,
limit: int = 20,
) -> ApiResponse[list[schemas.Account]]:
"""
View who favourited a given status.
"""
post = post_for_id(request, id)
paginator = MastodonPaginator()
pager: PaginationResult[PostInteraction] = paginator.paginate(
post.interactions.filter(
type=PostInteraction.Types.like,
state__in=PostInteractionStates.group_active(),
).select_related("identity"),
min_id=min_id,
max_id=max_id,
since_id=since_id,
limit=limit,
)
headers = {}
if pager.results:
headers = {"link": pager.link_header(request, ["limit"])}
return ApiResponse(
[
schemas.Account.from_identity(
interaction.identity,
include_counts=False,
)
for interaction in pager.results
],
headers=headers,
)
@scope_required("write:favourites")
@api_view.post
def reblog_status(request, id: str) -> schemas.Status:
post = post_for_id(request, id)
service = PostService(post)
service.boost_as(request.identity)
interactions = PostInteraction.get_post_interactions([post], request.identity)
return schemas.Status.from_post(
post, interactions=interactions, identity=request.identity
)
@scope_required("write:favourites")
@api_view.post
def unreblog_status(request, id: str) -> schemas.Status:
post = post_for_id(request, id)
service = PostService(post)
service.unboost_as(request.identity)
interactions = PostInteraction.get_post_interactions([post], request.identity)
return schemas.Status.from_post(
post, interactions=interactions, identity=request.identity
)