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https://github.com/LemmyNet/lemmy.git
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Nutomic
61189efe72
* Merge traits ToApub and FromApub into ApubObject * Rewrite community outbox to use new fetcher * Rewrite community moderators collection * Rewrite tombstone
56 lines
2.1 KiB
Rust
56 lines
2.1 KiB
Rust
pub mod object_id;
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pub mod post_or_comment;
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pub mod search;
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use crate::{
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fetcher::object_id::ObjectId,
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objects::{community::ApubCommunity, person::ApubPerson},
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};
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use chrono::NaiveDateTime;
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use lemmy_apub_lib::traits::ActorType;
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use lemmy_db_schema::naive_now;
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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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static ACTOR_REFETCH_INTERVAL_SECONDS: i64 = 24 * 60 * 60;
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static ACTOR_REFETCH_INTERVAL_SECONDS_DEBUG: i64 = 10;
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/// Get a remote actor from its apub ID (either a person or a community). Thin wrapper around
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/// `get_or_fetch_and_upsert_person()` and `get_or_fetch_and_upsert_community()`.
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///
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/// If it exists locally and `!should_refetch_actor()`, it is returned directly from the database.
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/// Otherwise it is fetched from the remote instance, stored and returned.
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pub(crate) async fn get_or_fetch_and_upsert_actor(
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apub_id: Url,
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context: &LemmyContext,
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recursion_counter: &mut i32,
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) -> Result<Box<dyn ActorType>, LemmyError> {
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let community_id = ObjectId::<ApubCommunity>::new(apub_id.clone());
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let community = community_id.dereference(context, recursion_counter).await;
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let actor: Box<dyn ActorType> = match community {
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Ok(c) => Box::new(c),
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Err(_) => {
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let person_id = ObjectId::new(apub_id);
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let person: ApubPerson = person_id.dereference(context, recursion_counter).await?;
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Box::new(person)
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}
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};
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Ok(actor)
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}
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/// Determines when a remote actor should be refetched from its instance. In release builds, this is
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/// `ACTOR_REFETCH_INTERVAL_SECONDS` after the last refetch, in debug builds
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/// `ACTOR_REFETCH_INTERVAL_SECONDS_DEBUG`.
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///
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/// TODO it won't pick up new avatars, summaries etc until a day after.
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/// Actors need an "update" activity pushed to other servers to fix this.
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fn should_refetch_object(last_refreshed: NaiveDateTime) -> bool {
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let update_interval = if cfg!(debug_assertions) {
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// avoid infinite loop when fetching community outbox
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chrono::Duration::seconds(ACTOR_REFETCH_INTERVAL_SECONDS_DEBUG)
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} else {
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chrono::Duration::seconds(ACTOR_REFETCH_INTERVAL_SECONDS)
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};
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last_refreshed.lt(&(naive_now() - update_interval))
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}
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