mirror of
https://github.com/LemmyNet/lemmy.git
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a2a594b763
* Create example for apub lib * some rewriting of apub lib * Add LocalInstance struct for apub lib to avoid using Lemmy Settings * Move ActorType trait to lemmy_apub, because its not needed in library * Use reqwest_retry instead of custom impl, dont specify timeout on every send() * Some improvements to example * Moved inbox handling to library * bug fixes * Move context and serde helpers into library * wip: example changes * Add lemmy_utils feature to build only LemmyError * Rename to activitypub_federation * Remove lemmy_utils dep from activitypub_federation using generic error type * Finish activitypub example * Cleanup and fix tests * Reorganize library files * Remove ApubObject.to_tombstone() * Extract activitypub library into separate git repository
102 lines
2.8 KiB
Rust
102 lines
2.8 KiB
Rust
use crate::{
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activities::{generate_activity_id, send_lemmy_activity, verify_person},
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local_instance,
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objects::{community::ApubCommunity, person::ApubPerson},
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protocol::activities::following::{follow::FollowCommunity, undo_follow::UndoFollowCommunity},
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ActorType,
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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_api_common::utils::blocking;
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use lemmy_db_schema::{
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source::community::{CommunityFollower, CommunityFollowerForm},
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traits::Followable,
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};
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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 UndoFollowCommunity {
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#[tracing::instrument(skip_all)]
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pub async fn send(
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actor: &ApubPerson,
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community: &ApubCommunity,
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context: &LemmyContext,
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) -> Result<(), LemmyError> {
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let object = FollowCommunity::new(actor, community, context)?;
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let undo = UndoFollowCommunity {
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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: 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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unparsed: Default::default(),
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};
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let inbox = vec![community.shared_inbox_or_inbox_url()];
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send_lemmy_activity(context, &undo, &undo.id, actor, inbox, true).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 UndoFollowCommunity {
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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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verify_urls_match(self.actor.inner(), self.object.actor.inner())?;
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verify_person(&self.actor, context, request_counter).await?;
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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 person = self
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.actor
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.dereference::<LemmyError>(context, local_instance(context), request_counter)
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.await?;
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let community = self
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.object
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.object
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.dereference::<LemmyError>(context, local_instance(context), request_counter)
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.await?;
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let community_follower_form = CommunityFollowerForm {
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community_id: community.id,
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person_id: person.id,
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pending: false,
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};
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// This will fail if they aren't a follower, but ignore the error.
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blocking(context.pool(), move |conn| {
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CommunityFollower::unfollow(conn, &community_follower_form).ok()
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})
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.await?;
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Ok(())
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}
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}
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