mirror of
https://github.com/LemmyNet/lemmy.git
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d20d2b9218
* Implement federated user following (fixes #752) * rewrite send_activity_in_community and add docs, remove default for column pending * improve migration * replace null values in db migration
119 lines
3.4 KiB
Rust
119 lines
3.4 KiB
Rust
use crate::{
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activities::{
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community::{announce::GetCommunity, send_activity_in_community},
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generate_activity_id,
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verify_person_in_community,
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voting::{undo_vote_comment, undo_vote_post},
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},
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activity_lists::AnnouncableActivities,
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local_instance,
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objects::{community::ApubCommunity, person::ApubPerson},
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protocol::activities::voting::{
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undo_vote::UndoVote,
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vote::{Vote, VoteType},
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},
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ActorType,
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PostOrComment,
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};
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use activitypub_federation::{
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core::object_id::ObjectId,
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data::Data,
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traits::ActivityHandler,
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utils::verify_urls_match,
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};
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use activitystreams_kinds::activity::UndoType;
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use lemmy_db_schema::{newtypes::CommunityId, source::community::Community, traits::Crud};
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use lemmy_utils::error::LemmyError;
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use lemmy_websocket::LemmyContext;
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use url::Url;
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impl UndoVote {
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/// UndoVote has as:Public value in cc field, unlike other activities. This indicates to other
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/// software (like GNU social, or presumably Mastodon), that the like actor should not be
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/// disclosed.
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#[tracing::instrument(skip_all)]
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pub async fn send(
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object: &PostOrComment,
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actor: &ApubPerson,
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community_id: CommunityId,
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kind: VoteType,
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context: &LemmyContext,
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) -> Result<(), LemmyError> {
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let community: ApubCommunity = Community::read(context.pool(), community_id).await?.into();
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let object = Vote::new(object, actor, kind.clone(), context)?;
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let id = generate_activity_id(
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UndoType::Undo,
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&context.settings().get_protocol_and_hostname(),
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)?;
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let undo_vote = UndoVote {
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actor: ObjectId::new(actor.actor_id()),
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object,
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kind: UndoType::Undo,
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id: id.clone(),
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};
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let activity = AnnouncableActivities::UndoVote(undo_vote);
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send_activity_in_community(activity, actor, &community, vec![], false, context).await
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}
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}
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#[async_trait::async_trait(?Send)]
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impl ActivityHandler for UndoVote {
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type DataType = LemmyContext;
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type Error = LemmyError;
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fn id(&self) -> &Url {
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&self.id
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}
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fn actor(&self) -> &Url {
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self.actor.inner()
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}
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#[tracing::instrument(skip_all)]
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async fn verify(
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&self,
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context: &Data<LemmyContext>,
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request_counter: &mut i32,
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) -> Result<(), LemmyError> {
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let community = self.get_community(context, request_counter).await?;
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verify_person_in_community(&self.actor, &community, context, request_counter).await?;
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verify_urls_match(self.actor.inner(), self.object.actor.inner())?;
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self.object.verify(context, request_counter).await?;
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Ok(())
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}
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#[tracing::instrument(skip_all)]
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async fn receive(
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self,
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context: &Data<LemmyContext>,
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request_counter: &mut i32,
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) -> Result<(), LemmyError> {
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let actor = self
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.actor
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.dereference(context, local_instance(context).await, request_counter)
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.await?;
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let object = self
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.object
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.object
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.dereference(context, local_instance(context).await, request_counter)
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.await?;
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match object {
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PostOrComment::Post(p) => undo_vote_post(actor, &p, context).await,
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PostOrComment::Comment(c) => undo_vote_comment(actor, &c, context).await,
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}
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}
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}
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#[async_trait::async_trait(?Send)]
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impl GetCommunity for UndoVote {
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#[tracing::instrument(skip_all)]
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async fn get_community(
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&self,
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context: &LemmyContext,
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request_counter: &mut i32,
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) -> Result<ApubCommunity, LemmyError> {
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self.object.get_community(context, request_counter).await
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}
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}
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