use crate::{
- check_is_apub_id_valid,
- context::WithContext,
- fetcher::object_id::ObjectId,
- generate_moderators_url,
insert_activity,
+ local_instance,
objects::{community::ApubCommunity, person::ApubPerson},
+ ActorType,
+ CONTEXT,
};
-use activitystreams::public;
-use anyhow::anyhow;
-use lemmy_api_common::blocking;
-use lemmy_apub_lib::{
- activity_queue::send_activity,
- traits::ActorType,
- verify::verify_domains_match,
+use activitypub_federation::{
+ core::{activity_queue::send_activity, object_id::ObjectId},
+ deser::context::WithContext,
+ traits::{ActivityHandler, Actor},
};
-use lemmy_db_schema::source::community::Community;
-use lemmy_db_views_actor::{
- community_person_ban_view::CommunityPersonBanView,
- community_view::CommunityView,
+use activitystreams_kinds::public;
+use anyhow::anyhow;
+use lemmy_api_common::context::LemmyContext;
+use lemmy_db_schema::{
+ newtypes::CommunityId,
+ source::{community::Community, local_site::LocalSite},
};
-use lemmy_utils::{settings::structs::Settings, LemmyError};
-use lemmy_websocket::LemmyContext;
-use log::info;
+use lemmy_db_views_actor::structs::{CommunityPersonBanView, CommunityView};
+use lemmy_utils::error::LemmyError;
use serde::Serialize;
+use std::ops::Deref;
+use tracing::info;
use url::{ParseError, Url};
use uuid::Uuid;
-pub mod comment;
+pub mod block;
pub mod community;
+pub mod create_or_update;
pub mod deletion;
pub mod following;
-pub mod post;
-pub mod private_message;
+pub mod unfederated;
pub mod voting;
/// Checks that the specified Url actually identifies a Person (by fetching it), and that the person
/// doesn't have a site ban.
+#[tracing::instrument(skip_all)]
async fn verify_person(
person_id: &ObjectId<ApubPerson>,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
- let person = person_id.dereference(context, request_counter).await?;
+ let person = person_id
+ .dereference(context, local_instance(context).await, request_counter)
+ .await?;
if person.banned {
- return Err(anyhow!("Person {} is banned", person_id).into());
+ let err = anyhow!("Person {} is banned", person_id);
+ return Err(LemmyError::from_error_message(err, "banned"));
}
Ok(())
}
/// Fetches the person and community to verify their type, then checks if person is banned from site
/// or community.
+#[tracing::instrument(skip_all)]
pub(crate) async fn verify_person_in_community(
person_id: &ObjectId<ApubPerson>,
community: &ApubCommunity,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
- let person = person_id.dereference(context, request_counter).await?;
+ let person = person_id
+ .dereference(context, local_instance(context).await, request_counter)
+ .await?;
if person.banned {
- return Err(anyhow!("Person is banned from site").into());
+ return Err(LemmyError::from_message("Person is banned from site"));
}
let person_id = person.id;
let community_id = community.id;
- let is_banned =
- move |conn: &'_ _| CommunityPersonBanView::get(conn, person_id, community_id).is_ok();
- if blocking(context.pool(), is_banned).await? {
- return Err(anyhow!("Person is banned from community").into());
+ let is_banned = CommunityPersonBanView::get(context.pool(), person_id, community_id)
+ .await
+ .is_ok();
+ if is_banned {
+ return Err(LemmyError::from_message("Person is banned from community"));
}
Ok(())
}
-fn verify_activity(id: &Url, actor: &Url, settings: &Settings) -> Result<(), LemmyError> {
- check_is_apub_id_valid(actor, false, settings)?;
- verify_domains_match(id, actor)?;
- Ok(())
-}
-
-/// Verify that the actor is a community mod. This check is only run if the community is local,
-/// because in case of remote communities, admins can also perform mod actions. As admin status
-/// is not federated, we cant verify their actions remotely.
+/// Verify that mod action in community was performed by a moderator.
+///
+/// * `mod_id` - Activitypub ID of the mod or admin who performed the action
+/// * `object_id` - Activitypub ID of the actor or object that is being moderated
+/// * `community` - The community inside which moderation is happening
+#[tracing::instrument(skip_all)]
pub(crate) async fn verify_mod_action(
- actor_id: &ObjectId<ApubPerson>,
- community: &ApubCommunity,
+ mod_id: &ObjectId<ApubPerson>,
+ object_id: &Url,
+ community_id: CommunityId,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
- if community.local {
- let actor = actor_id.dereference(context, request_counter).await?;
-
- // Note: this will also return true for admins in addition to mods, but as we dont know about
- // remote admins, it doesnt make any difference.
- let community_id = community.id;
- let actor_id = actor.id;
- let is_mod_or_admin = blocking(context.pool(), move |conn| {
- CommunityView::is_mod_or_admin(conn, actor_id, community_id)
- })
+ let mod_ = mod_id
+ .dereference(context, local_instance(context).await, request_counter)
.await?;
- if !is_mod_or_admin {
- return Err(anyhow!("Not a mod").into());
- }
+
+ let is_mod_or_admin =
+ CommunityView::is_mod_or_admin(context.pool(), mod_.id, community_id).await?;
+ if is_mod_or_admin {
+ return Ok(());
}
- Ok(())
+
+ // mod action comes from the same instance as the moderated object, so it was presumably done
+ // by an instance admin.
+ // TODO: federate instance admin status and check it here
+ if mod_id.inner().domain() == object_id.domain() {
+ return Ok(());
+ }
+
+ Err(LemmyError::from_message("Not a mod"))
}
-/// For Add/Remove community moderator activities, check that the target field actually contains
-/// /c/community/moderators. Any different values are unsupported.
-fn verify_add_remove_moderator_target(
- target: &Url,
- community: &ApubCommunity,
-) -> Result<(), LemmyError> {
- if target != &generate_moderators_url(&community.actor_id)?.into_inner() {
- return Err(anyhow!("Unkown target url").into());
+pub(crate) fn verify_is_public(to: &[Url], cc: &[Url]) -> Result<(), LemmyError> {
+ if ![to, cc].iter().any(|set| set.contains(&public())) {
+ return Err(LemmyError::from_message("Object is not public"));
}
Ok(())
}
-pub(crate) fn verify_is_public(to: &[Url]) -> Result<(), LemmyError> {
- if !to.contains(&public()) {
- return Err(anyhow!("Object is not public").into());
+pub(crate) fn verify_community_matches<T>(
+ a: &ObjectId<ApubCommunity>,
+ b: T,
+) -> Result<(), LemmyError>
+where
+ T: Into<ObjectId<ApubCommunity>>,
+{
+ let b: ObjectId<ApubCommunity> = b.into();
+ if a != &b {
+ return Err(LemmyError::from_message("Invalid community"));
}
Ok(())
}
pub(crate) fn check_community_deleted_or_removed(community: &Community) -> Result<(), LemmyError> {
if community.deleted || community.removed {
- Err(anyhow!("New post or comment cannot be created in deleted or removed community").into())
+ Err(LemmyError::from_message(
+ "New post or comment cannot be created in deleted or removed community",
+ ))
} else {
Ok(())
}
Url::parse(&id)
}
-async fn send_lemmy_activity<T: Serialize>(
+#[tracing::instrument(skip_all)]
+async fn send_lemmy_activity<Activity, ActorT>(
context: &LemmyContext,
- activity: &T,
- activity_id: &Url,
- actor: &dyn ActorType,
- inboxes: Vec<Url>,
+ activity: Activity,
+ actor: &ActorT,
+ inbox: Vec<Url>,
sensitive: bool,
-) -> Result<(), LemmyError> {
- if !context.settings().federation.enabled || inboxes.is_empty() {
+) -> Result<(), LemmyError>
+where
+ Activity: ActivityHandler + Serialize,
+ ActorT: Actor + ActorType,
+ Activity: ActivityHandler<Error = LemmyError>,
+{
+ let federation_enabled = LocalSite::read(context.pool())
+ .await
+ .map(|l| l.federation_enabled)
+ .unwrap_or(false);
+ if !federation_enabled {
return Ok(());
}
- let activity = WithContext::new(activity);
-
- info!("Sending activity {}", activity_id.to_string());
-
- // Don't send anything to ourselves
- // TODO: this should be a debug assert
- let hostname = context.settings().get_hostname_without_port()?;
- let inboxes: Vec<&Url> = inboxes
- .iter()
- .filter(|i| i.domain().expect("valid inbox url") != hostname)
- .collect();
-
- let serialised_activity = serde_json::to_string(&activity)?;
-
- insert_activity(
- activity_id,
- serialised_activity.clone(),
- true,
- sensitive,
- context.pool(),
- )
- .await?;
+
+ info!("Sending activity {}", activity.id().to_string());
+ let activity = WithContext::new(activity, CONTEXT.deref().clone());
+
+ let object_value = serde_json::to_value(&activity)?;
+ insert_activity(activity.id(), object_value, true, sensitive, context.pool()).await?;
send_activity(
- serialised_activity,
- actor,
- inboxes,
- context.client(),
- context.activity_queue(),
+ activity,
+ actor.get_public_key(),
+ actor.private_key().expect("actor has private key"),
+ inbox,
+ local_instance(context).await,
)
- .await
+ .await?;
+
+ Ok(())
}
projects / lemmy.git / blobdiff