lemmy/crates/apub/src/activities/create_or_update/post.rs

180 lines
5.5 KiB
Rust
Raw Normal View History

use crate::{
activities::{
check_community_deleted_or_removed,
community::{announce::GetCommunity, send_activity_in_community},
generate_activity_id,
verify_is_public,
2021-07-31 17:26:17 +00:00
verify_mod_action,
verify_person_in_community,
},
activity_lists::AnnouncableActivities,
objects::{community::ApubCommunity, person::ApubPerson, post::ApubPost},
protocol::activities::{create_or_update::post::CreateOrUpdatePost, CreateOrUpdateType},
ActorType,
};
use activitypub_federation::{
core::object_id::ObjectId,
data::Data,
traits::{ActivityHandler, ApubObject},
utils::{verify_domains_match, verify_urls_match},
};
use activitystreams_kinds::public;
use lemmy_api_common::utils::blocking;
2022-04-07 20:46:10 +00:00
use lemmy_db_schema::{
source::{
community::Community,
post::{PostLike, PostLikeForm},
},
traits::{Crud, Likeable},
};
use lemmy_utils::error::LemmyError;
use lemmy_websocket::{send::send_post_ws_message, LemmyContext, UserOperationCrud};
use url::Url;
2021-07-31 17:26:17 +00:00
impl CreateOrUpdatePost {
pub(crate) async fn new(
post: ApubPost,
actor: &ApubPerson,
community: &ApubCommunity,
2021-07-31 17:26:17 +00:00
kind: CreateOrUpdateType,
context: &LemmyContext,
) -> Result<CreateOrUpdatePost, LemmyError> {
let id = generate_activity_id(
kind.clone(),
&context.settings().get_protocol_and_hostname(),
)?;
Ok(CreateOrUpdatePost {
actor: ObjectId::new(actor.actor_id()),
to: vec![public()],
object: post.into_apub(context).await?,
cc: vec![community.actor_id()],
2021-07-31 17:26:17 +00:00
kind,
id: id.clone(),
unparsed: Default::default(),
})
}
#[tracing::instrument(skip_all)]
pub async fn send(
post: ApubPost,
actor: &ApubPerson,
kind: CreateOrUpdateType,
context: &LemmyContext,
) -> Result<(), LemmyError> {
let community_id = post.community_id;
let community: ApubCommunity = blocking(context.pool(), move |conn| {
Community::read(conn, community_id)
})
.await??
.into();
let create_or_update = CreateOrUpdatePost::new(post, actor, &community, kind, context).await?;
let activity = AnnouncableActivities::CreateOrUpdatePost(Box::new(create_or_update));
send_activity_in_community(activity, actor, &community, vec![], context).await
}
}
#[async_trait::async_trait(?Send)]
2021-07-31 17:26:17 +00:00
impl ActivityHandler for CreateOrUpdatePost {
type DataType = LemmyContext;
type Error = LemmyError;
fn id(&self) -> &Url {
&self.id
}
fn actor(&self) -> &Url {
self.actor.inner()
}
#[tracing::instrument(skip_all)]
async fn verify(
&self,
context: &Data<LemmyContext>,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
verify_is_public(&self.to, &self.cc)?;
let community = self.get_community(context, request_counter).await?;
verify_person_in_community(&self.actor, &community, context, request_counter).await?;
check_community_deleted_or_removed(&community)?;
2021-07-31 17:26:17 +00:00
match self.kind {
CreateOrUpdateType::Create => {
2021-11-03 16:26:09 +00:00
verify_domains_match(self.actor.inner(), self.object.id.inner())?;
2022-05-06 23:53:33 +00:00
verify_urls_match(self.actor.inner(), self.object.creator()?.inner())?;
2021-07-31 17:26:17 +00:00
// Check that the post isnt locked or stickied, as that isnt possible for newly created posts.
// However, when fetching a remote post we generate a new create activity with the current
// locked/stickied value, so this check may fail. So only check if its a local community,
// because then we will definitely receive all create and update activities separately.
let is_stickied_or_locked =
self.object.stickied == Some(true) || self.object.comments_enabled == Some(false);
if community.local && is_stickied_or_locked {
return Err(LemmyError::from_message(
"New post cannot be stickied or locked",
));
2021-07-31 17:26:17 +00:00
}
}
CreateOrUpdateType::Update => {
let is_mod_action = self.object.is_mod_action(context).await?;
2021-07-31 17:26:17 +00:00
if is_mod_action {
verify_mod_action(
&self.actor,
self.object.id.inner(),
&community,
context,
request_counter,
)
.await?;
2021-07-31 17:26:17 +00:00
} else {
2021-11-03 16:26:09 +00:00
verify_domains_match(self.actor.inner(), self.object.id.inner())?;
2022-05-06 23:53:33 +00:00
verify_urls_match(self.actor.inner(), self.object.creator()?.inner())?;
2021-07-31 17:26:17 +00:00
}
}
}
2021-11-06 17:35:14 +00:00
ApubPost::verify(&self.object, self.actor.inner(), context, request_counter).await?;
Ok(())
}
#[tracing::instrument(skip_all)]
async fn receive(
self,
context: &Data<LemmyContext>,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
2021-11-06 17:35:14 +00:00
let post = ApubPost::from_apub(self.object, context, request_counter).await?;
2022-04-07 20:46:10 +00:00
// author likes their own post by default
let like_form = PostLikeForm {
post_id: post.id,
person_id: post.creator_id,
score: 1,
};
blocking(context.pool(), move |conn: &mut _| {
2022-04-07 20:46:10 +00:00
PostLike::like(conn, &like_form)
})
.await??;
2021-07-31 17:26:17 +00:00
let notif_type = match self.kind {
CreateOrUpdateType::Create => UserOperationCrud::CreatePost,
CreateOrUpdateType::Update => UserOperationCrud::EditPost,
};
send_post_ws_message(post.id, notif_type, None, None, context).await?;
Ok(())
}
}
#[async_trait::async_trait(?Send)]
impl GetCommunity for CreateOrUpdatePost {
#[tracing::instrument(skip_all)]
async fn get_community(
&self,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<ApubCommunity, LemmyError> {
self
.object
.extract_community(context, request_counter)
.await
}
}