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92 lines
2.8 KiB
Rust
92 lines
2.8 KiB
Rust
use crate::{data::Data, signatures::PublicKey};
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use chrono::NaiveDateTime;
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pub use lemmy_apub_lib_derive::*;
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use lemmy_utils::LemmyError;
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use url::Url;
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#[async_trait::async_trait(?Send)]
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pub trait ActivityHandler {
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type DataType;
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async fn verify(
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&self,
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data: &Data<Self::DataType>,
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request_counter: &mut i32,
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) -> Result<(), LemmyError>;
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async fn receive(
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self,
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data: &Data<Self::DataType>,
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request_counter: &mut i32,
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) -> Result<(), LemmyError>;
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}
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#[async_trait::async_trait(?Send)]
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pub trait ApubObject {
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type DataType;
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type ApubType;
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type DbType;
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type TombstoneType;
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/// If this object should be refetched after a certain interval, it should return the last refresh
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/// time here. This is mainly used to update remote actors.
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fn last_refreshed_at(&self) -> Option<NaiveDateTime>;
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/// Try to read the object with given ID from local database. Returns Ok(None) if it doesn't exist.
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async fn read_from_apub_id(
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object_id: Url,
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data: &Self::DataType,
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) -> Result<Option<Self>, LemmyError>
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where
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Self: Sized;
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/// Marks the object as deleted in local db. Called when a tombstone is received.
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async fn delete(self, data: &Self::DataType) -> Result<(), LemmyError>;
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/// Trait for converting an object or actor into the respective ActivityPub type.
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async fn into_apub(self, data: &Self::DataType) -> Result<Self::ApubType, LemmyError>;
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fn to_tombstone(&self) -> Result<Self::TombstoneType, LemmyError>;
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async fn verify(
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apub: &Self::ApubType,
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expected_domain: &Url,
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data: &Self::DataType,
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request_counter: &mut i32,
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) -> Result<(), LemmyError>;
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/// Converts an object from ActivityPub type to Lemmy internal type.
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///
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/// * `apub` The object to read from
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/// * `context` LemmyContext which holds DB pool, HTTP client etc
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/// * `expected_domain` Domain where the object was received from. None in case of mod action.
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/// * `mod_action_allowed` True if the object can be a mod activity, ignore `expected_domain` in this case
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async fn from_apub(
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apub: Self::ApubType,
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data: &Self::DataType,
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request_counter: &mut i32,
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) -> Result<Self, LemmyError>
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where
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Self: Sized;
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}
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/// Common methods provided by ActivityPub actors (community and person). Not all methods are
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/// implemented by all actors.
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pub trait ActorType {
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fn actor_id(&self) -> Url;
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fn public_key(&self) -> String;
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fn private_key(&self) -> Option<String>;
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fn inbox_url(&self) -> Url;
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fn shared_inbox_url(&self) -> Option<Url>;
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fn shared_inbox_or_inbox_url(&self) -> Url {
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self.shared_inbox_url().unwrap_or_else(|| self.inbox_url())
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}
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fn get_public_key(&self) -> Result<PublicKey, LemmyError> {
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Ok(PublicKey {
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id: format!("{}#main-key", self.actor_id()),
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owner: Box::new(self.actor_id()),
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public_key_pem: self.public_key(),
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})
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}
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}
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