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https://github.com/LemmyNet/lemmy.git
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1b9414f292
* Make HTTP signatures compatible with Pleroma * Send Announce/Page, Announce/Note for Pleroma compatibility * remove unused code
121 lines
3.4 KiB
Rust
121 lines
3.4 KiB
Rust
use crate::{
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activities::{generate_activity_id, send_lemmy_activity, verify_activity, verify_is_public},
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activity_lists::AnnouncableActivities,
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http::{is_activity_already_known, ActivityCommonFields},
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insert_activity,
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objects::community::ApubCommunity,
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protocol::activities::community::announce::AnnounceActivity,
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};
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use activitystreams::{activity::kind::AnnounceType, public};
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use lemmy_apub_lib::{
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data::Data,
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object_id::ObjectId,
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traits::{ActivityHandler, ActorType},
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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 url::Url;
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#[async_trait::async_trait(?Send)]
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pub(crate) trait GetCommunity {
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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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}
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impl AnnounceActivity {
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fn new(
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object: AnnouncableActivities,
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community: &ApubCommunity,
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context: &LemmyContext,
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) -> Result<AnnounceActivity, LemmyError> {
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Ok(AnnounceActivity {
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actor: ObjectId::new(community.actor_id()),
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to: vec![public()],
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object,
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cc: vec![community.followers_url.clone().into()],
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kind: AnnounceType::Announce,
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id: generate_activity_id(
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&AnnounceType::Announce,
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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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}
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pub async fn send(
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object: AnnouncableActivities,
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community: &ApubCommunity,
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additional_inboxes: Vec<Url>,
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context: &LemmyContext,
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) -> Result<(), LemmyError> {
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let announce = AnnounceActivity::new(object.clone(), community, context)?;
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let inboxes = community
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.get_follower_inboxes(additional_inboxes.clone(), context)
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.await?;
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send_lemmy_activity(
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context,
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&announce,
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&announce.id,
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community,
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inboxes.clone(),
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false,
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)
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.await?;
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// Pleroma (and likely Mastodon) can't handle activities like Announce/Create/Page, so for
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// compatibility, we also send Announce/Page and Announce/Note (for new and updated
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// posts/comments).
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use AnnouncableActivities::*;
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let object = match object {
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CreateOrUpdatePost(c) => Page(c.object),
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CreateOrUpdateComment(c) => Note(c.object),
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_ => return Ok(()),
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};
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let announce_compat = AnnounceActivity::new(object, community, context)?;
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send_lemmy_activity(
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context,
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&announce_compat,
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&announce_compat.id,
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community,
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inboxes,
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false,
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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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#[async_trait::async_trait(?Send)]
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impl ActivityHandler for AnnounceActivity {
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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_is_public(&self.to, &self.cc)?;
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verify_activity(&self.id, self.actor.inner(), &context.settings())?;
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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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// TODO: this is pretty ugly, but i cant think of a much better way
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let object = serde_json::to_string(&self.object)?;
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let object_data: ActivityCommonFields = serde_json::from_str(&object)?;
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if is_activity_already_known(context.pool(), &object_data.id).await? {
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return Ok(());
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}
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insert_activity(&object_data.id, &self.object, false, true, context.pool()).await?;
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self.object.receive(context, request_counter).await
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}
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}
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