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https://github.com/LemmyNet/lemmy.git
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113 lines
3 KiB
Rust
113 lines
3 KiB
Rust
use crate::{
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activities::{
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following::follow::FollowCommunity,
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generate_activity_id,
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verify_activity,
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verify_person,
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},
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context::lemmy_context,
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fetcher::object_id::ObjectId,
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send_lemmy_activity,
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};
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use activitystreams::{
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activity::kind::UndoType,
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base::AnyBase,
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primitives::OneOrMany,
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unparsed::Unparsed,
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};
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use lemmy_api_common::blocking;
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use lemmy_apub_lib::{
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data::Data,
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traits::{ActivityFields, ActivityHandler, ActorType},
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verify::verify_urls_match,
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};
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use lemmy_db_schema::{
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source::{
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community::{Community, CommunityFollower, CommunityFollowerForm},
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person::Person,
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},
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traits::Followable,
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};
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use lemmy_utils::LemmyError;
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use lemmy_websocket::LemmyContext;
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use serde::{Deserialize, Serialize};
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use url::Url;
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#[derive(Clone, Debug, Deserialize, Serialize, ActivityFields)]
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#[serde(rename_all = "camelCase")]
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pub struct UndoFollowCommunity {
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actor: ObjectId<Person>,
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to: ObjectId<Community>,
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object: FollowCommunity,
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#[serde(rename = "type")]
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kind: UndoType,
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id: Url,
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#[serde(rename = "@context")]
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context: OneOrMany<AnyBase>,
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#[serde(flatten)]
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unparsed: Unparsed,
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}
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impl UndoFollowCommunity {
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pub async fn send(
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actor: &Person,
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community: &Community,
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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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to: ObjectId::new(community.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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context: lemmy_context(),
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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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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_activity(self, &context.settings())?;
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verify_urls_match(self.to.inner(), self.object.object.inner())?;
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verify_urls_match(self.actor(), self.object.actor())?;
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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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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.actor.dereference(context, request_counter).await?;
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let community = self.to.dereference(context, request_counter).await?;
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let community_follower_form = CommunityFollowerForm {
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community_id: community.id,
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person_id: actor.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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