mirror of
https://github.com/LemmyNet/lemmy.git
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e9e76549a8
* Split activity table into sent and received parts (fixes #3103) The received activities are only stored in order to avoid processing the same incoming activity multiple times. For this purpose it is completely unnecessary to store the data. So we can split the table into sent_activity and received_activity parts, where only sent_activity table needs to store activity data. This should reduce storage use significantly. Also reduces activity storage duration to three months, we can reduce this further if necessary. Additionally the id columns of activity tables are removed because they are completely unused and risk overflowing (fixes #3560). * address review * move insert_received_activity() methods to verify handlers * remove unnecessary conflict line * clippy * use on conflict, add tests
146 lines
4 KiB
Rust
146 lines
4 KiB
Rust
use crate::{
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activities::{
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generate_activity_id,
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send_lemmy_activity,
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verify_person,
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verify_person_in_community,
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},
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fetcher::user_or_community::UserOrCommunity,
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insert_received_activity,
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objects::{community::ApubCommunity, person::ApubPerson},
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protocol::activities::following::{
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accept::AcceptFollow,
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follow::Follow,
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undo_follow::UndoFollow,
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},
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SendActivity,
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};
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use activitypub_federation::{
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config::Data,
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kinds::activity::FollowType,
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protocol::verification::verify_urls_match,
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traits::{ActivityHandler, Actor},
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};
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use lemmy_api_common::{
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community::{BlockCommunity, BlockCommunityResponse},
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context::LemmyContext,
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utils::local_user_view_from_jwt,
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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::{PersonFollower, PersonFollowerForm},
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},
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traits::{Crud, Followable},
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};
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use lemmy_utils::error::LemmyError;
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use url::Url;
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impl Follow {
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pub(in crate::activities::following) fn new(
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actor: &ApubPerson,
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community: &ApubCommunity,
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context: &Data<LemmyContext>,
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) -> Result<Follow, LemmyError> {
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Ok(Follow {
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actor: actor.id().into(),
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object: community.id().into(),
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to: Some([community.id().into()]),
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kind: FollowType::Follow,
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id: generate_activity_id(
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FollowType::Follow,
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&context.settings().get_protocol_and_hostname(),
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)?,
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})
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}
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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: &Data<LemmyContext>,
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) -> Result<(), LemmyError> {
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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: true,
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};
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CommunityFollower::follow(&mut context.pool(), &community_follower_form)
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.await
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.ok();
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let follow = Follow::new(actor, community, context)?;
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let inbox = vec![community.shared_inbox_or_inbox()];
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send_lemmy_activity(context, follow, actor, inbox, true).await
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}
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}
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#[async_trait::async_trait]
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impl ActivityHandler for Follow {
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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(&self, context: &Data<LemmyContext>) -> Result<(), LemmyError> {
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insert_received_activity(&self.id, context).await?;
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verify_person(&self.actor, context).await?;
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let object = self.object.dereference(context).await?;
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if let UserOrCommunity::Community(c) = object {
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verify_person_in_community(&self.actor, &c, context).await?;
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}
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if let Some(to) = &self.to {
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verify_urls_match(to[0].inner(), self.object.inner())?;
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}
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Ok(())
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}
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#[tracing::instrument(skip_all)]
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async fn receive(self, context: &Data<LemmyContext>) -> Result<(), LemmyError> {
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let actor = self.actor.dereference(context).await?;
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let object = self.object.dereference(context).await?;
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match object {
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UserOrCommunity::User(u) => {
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let form = PersonFollowerForm {
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person_id: u.id,
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follower_id: actor.id,
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pending: false,
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};
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PersonFollower::follow(&mut context.pool(), &form).await?;
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}
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UserOrCommunity::Community(c) => {
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let form = CommunityFollowerForm {
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community_id: c.id,
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person_id: actor.id,
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pending: false,
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};
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CommunityFollower::follow(&mut context.pool(), &form).await?;
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}
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}
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AcceptFollow::send(self, context).await
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}
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}
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#[async_trait::async_trait]
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impl SendActivity for BlockCommunity {
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type Response = BlockCommunityResponse;
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async fn send_activity(
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request: &Self,
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_response: &Self::Response,
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context: &Data<LemmyContext>,
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) -> Result<(), LemmyError> {
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let local_user_view = local_user_view_from_jwt(&request.auth, context).await?;
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let community = Community::read(&mut context.pool(), request.community_id).await?;
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UndoFollow::send(&local_user_view.person.into(), &community.into(), context).await
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}
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}
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