lemmy/crates/apub/src/activities/mod.rs

266 lines
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Rust
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use self::following::send_follow_community;
use crate::{
activities::{
deletion::{send_apub_delete_in_community, DeletableObjects},
voting::send_like_activity,
},
objects::{community::ApubCommunity, person::ApubPerson},
protocol::activities::{
create_or_update::{note::CreateOrUpdateNote, page::CreateOrUpdatePage},
CreateOrUpdateType,
},
CONTEXT,
};
use activitypub_federation::{
activity_queue::send_activity,
config::Data,
fetch::object_id::ObjectId,
kinds::public,
protocol::context::WithContext,
traits::{ActivityHandler, Actor},
};
use anyhow::anyhow;
use lemmy_api_common::{
context::LemmyContext,
send_activity::{ActivityChannel, SendActivityData},
};
use lemmy_db_schema::{
newtypes::CommunityId,
source::{
activity::{SentActivity, SentActivityForm},
community::Community,
instance::Instance,
},
};
use lemmy_db_views_actor::structs::{CommunityPersonBanView, CommunityView};
use lemmy_utils::{
error::{LemmyError, LemmyErrorExt, LemmyErrorType, LemmyResult},
spawn_try_task,
SYNCHRONOUS_FEDERATION,
};
use moka::future::Cache;
use once_cell::sync::Lazy;
use serde::Serialize;
use std::{ops::Deref, sync::Arc, time::Duration};
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use tracing::info;
use url::{ParseError, Url};
use uuid::Uuid;
pub mod block;
pub mod community;
pub mod create_or_update;
pub mod deletion;
pub mod following;
pub mod unfederated;
pub mod voting;
/// Amount of time that the list of dead instances is cached. This is only updated once a day,
/// so there is no harm in caching it for a longer time.
pub static DEAD_INSTANCE_LIST_CACHE_DURATION: Duration = Duration::from_secs(30 * 60);
/// 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: &Data<LemmyContext>,
) -> Result<(), LemmyError> {
let person = person_id.dereference(context).await?;
if person.banned {
return Err(anyhow!("Person {} is banned", person_id))
.with_lemmy_type(LemmyErrorType::CouldntUpdateComment);
}
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: &Data<LemmyContext>,
) -> Result<(), LemmyError> {
let person = person_id.dereference(context).await?;
if person.banned {
return Err(LemmyErrorType::PersonIsBannedFromSite)?;
}
let person_id = person.id;
let community_id = community.id;
Make functions work with both connection and pool (#3420) * a lot * merge * Fix stuff broken by merge * Get rid of repetitive `&mut *context.conn().await?` * Add blank lines under each line with `conn =` * Fix style mistakes (partial) * Revert "Fix style mistakes (partial)" This reverts commit 48a033b87f4fdc1ce14ff86cc019e1c703cd2741. * Revert "Add blank lines under each line with `conn =`" This reverts commit 773a6d3beba2cf89eac75913078b40c4f5190dd4. * Revert "Get rid of repetitive `&mut *context.conn().await?`" This reverts commit d2c6263ea13710177d49b2791278db5ad115fca5. * Use DbConn for CaptchaAnswer methods * DbConn trait * Remove more `&mut *` * Fix stuff * Re-run CI * try to make ci start * fix * fix * Fix api_common::utils * Fix apub::activities::block * Fix apub::api::resolve_object * Fix some things * Revert "Fix some things" This reverts commit 2bf8574bc8333d8d34ca542d61a0a5b50039c24d. * Revert "Fix apub::api::resolve_object" This reverts commit 3e4059aabbe485b2ff060bdeced8ef958ff62832. * Revert "Fix apub::activities::block" This reverts commit 3b02389abd780a7b1b8a2c89e26febdaa6a12159. * Revert "Fix api_common::utils" This reverts commit 7dc73de613a5618fa57eb06450f3699bbcb41254. * Revert "Revert "Fix api_common::utils"" This reverts commit f740f115e5457e83e53cc223e48196a2c47a9975. * Revert "Revert "Fix apub::activities::block"" This reverts commit 2ee206af7c885c10092cf209bf4a5b1d60327866. * Revert "Revert "Fix apub::api::resolve_object"" This reverts commit 96ed8bf2e9dcadae760743929498312334e23d2e. * Fix fetch_local_site_data * Fix get_comment_parent_creator * Remove unused perma deleted text * Fix routes::feeds * Fix lib.rs * Update lib.rs * rerun ci * Attempt to create custom GetConn and RunQueryDsl traits * Start over * Add GetConn trait * aaaa * Revert "aaaa" This reverts commit acc9ca1aed10c39efdd91cefece066e035a1fe80. * Revert "Revert "aaaa"" This reverts commit 443a2a00a56d152bb7eb429efd0d29a78e21b163. * still aaaaaaaaaaaaa * Return to earlier thing Revert "Add GetConn trait" This reverts commit ab4e94aea5bd9d34cbcddf017339131047e75344. * Try to use DbPool enum * Revert "Try to use DbPool enum" This reverts commit e4d1712646a52006b865a1fbe0dcf79976fdb027. * DbConn and DbPool enums (db_schema only fails to compile for tests) * fmt * Make functions take `&mut DbPool<'_>` and make db_schema tests compile * Add try_join_with_pool macro and run fix-clippy on more crates * Fix some errors * I did it * Remove function variants that take connection * rerun ci * rerun ci * rerun ci
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let is_banned = CommunityPersonBanView::get(&mut context.pool(), person_id, community_id)
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.await
.is_ok();
if is_banned {
return Err(LemmyErrorType::PersonIsBannedFromCommunity)?;
}
Ok(())
}
/// 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(
mod_id: &ObjectId<ApubPerson>,
object_id: &Url,
community_id: CommunityId,
context: &Data<LemmyContext>,
) -> Result<(), LemmyError> {
let mod_ = mod_id.dereference(context).await?;
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let is_mod_or_admin =
Make functions work with both connection and pool (#3420) * a lot * merge * Fix stuff broken by merge * Get rid of repetitive `&mut *context.conn().await?` * Add blank lines under each line with `conn =` * Fix style mistakes (partial) * Revert "Fix style mistakes (partial)" This reverts commit 48a033b87f4fdc1ce14ff86cc019e1c703cd2741. * Revert "Add blank lines under each line with `conn =`" This reverts commit 773a6d3beba2cf89eac75913078b40c4f5190dd4. * Revert "Get rid of repetitive `&mut *context.conn().await?`" This reverts commit d2c6263ea13710177d49b2791278db5ad115fca5. * Use DbConn for CaptchaAnswer methods * DbConn trait * Remove more `&mut *` * Fix stuff * Re-run CI * try to make ci start * fix * fix * Fix api_common::utils * Fix apub::activities::block * Fix apub::api::resolve_object * Fix some things * Revert "Fix some things" This reverts commit 2bf8574bc8333d8d34ca542d61a0a5b50039c24d. * Revert "Fix apub::api::resolve_object" This reverts commit 3e4059aabbe485b2ff060bdeced8ef958ff62832. * Revert "Fix apub::activities::block" This reverts commit 3b02389abd780a7b1b8a2c89e26febdaa6a12159. * Revert "Fix api_common::utils" This reverts commit 7dc73de613a5618fa57eb06450f3699bbcb41254. * Revert "Revert "Fix api_common::utils"" This reverts commit f740f115e5457e83e53cc223e48196a2c47a9975. * Revert "Revert "Fix apub::activities::block"" This reverts commit 2ee206af7c885c10092cf209bf4a5b1d60327866. * Revert "Revert "Fix apub::api::resolve_object"" This reverts commit 96ed8bf2e9dcadae760743929498312334e23d2e. * Fix fetch_local_site_data * Fix get_comment_parent_creator * Remove unused perma deleted text * Fix routes::feeds * Fix lib.rs * Update lib.rs * rerun ci * Attempt to create custom GetConn and RunQueryDsl traits * Start over * Add GetConn trait * aaaa * Revert "aaaa" This reverts commit acc9ca1aed10c39efdd91cefece066e035a1fe80. * Revert "Revert "aaaa"" This reverts commit 443a2a00a56d152bb7eb429efd0d29a78e21b163. * still aaaaaaaaaaaaa * Return to earlier thing Revert "Add GetConn trait" This reverts commit ab4e94aea5bd9d34cbcddf017339131047e75344. * Try to use DbPool enum * Revert "Try to use DbPool enum" This reverts commit e4d1712646a52006b865a1fbe0dcf79976fdb027. * DbConn and DbPool enums (db_schema only fails to compile for tests) * fmt * Make functions take `&mut DbPool<'_>` and make db_schema tests compile * Add try_join_with_pool macro and run fix-clippy on more crates * Fix some errors * I did it * Remove function variants that take connection * rerun ci * rerun ci * rerun ci
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CommunityView::is_mod_or_admin(&mut context.pool(), mod_.id, community_id).await?;
if is_mod_or_admin {
return 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(LemmyErrorType::NotAModerator)?
}
pub(crate) fn verify_is_public(to: &[Url], cc: &[Url]) -> Result<(), LemmyError> {
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if ![to, cc].iter().any(|set| set.contains(&public())) {
return Err(LemmyErrorType::ObjectIsNotPublic)?;
}
Ok(())
}
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(LemmyErrorType::InvalidCommunity)?;
}
Ok(())
}
pub(crate) fn check_community_deleted_or_removed(community: &Community) -> Result<(), LemmyError> {
if community.deleted || community.removed {
Err(LemmyErrorType::CannotCreatePostOrCommentInDeletedOrRemovedCommunity)?
} else {
Ok(())
}
}
/// Generate a unique ID for an activity, in the format:
/// `http(s)://example.com/receive/create/202daf0a-1489-45df-8d2e-c8a3173fed36`
fn generate_activity_id<T>(kind: T, protocol_and_hostname: &str) -> Result<Url, ParseError>
where
T: ToString,
{
let id = format!(
"{}/activities/{}/{}",
protocol_and_hostname,
kind.to_string().to_lowercase(),
Uuid::new_v4()
);
Url::parse(&id)
}
#[tracing::instrument(skip_all)]
async fn send_lemmy_activity<Activity, ActorT>(
data: &Data<LemmyContext>,
activity: Activity,
actor: &ActorT,
mut inbox: Vec<Url>,
sensitive: bool,
) -> Result<(), LemmyError>
where
Activity: ActivityHandler + Serialize + Send + Sync + Clone,
ActorT: Actor,
Activity: ActivityHandler<Error = LemmyError>,
{
static CACHE: Lazy<Cache<(), Arc<Vec<String>>>> = Lazy::new(|| {
Cache::builder()
.max_capacity(1)
.time_to_live(DEAD_INSTANCE_LIST_CACHE_DURATION)
.build()
});
let dead_instances = CACHE
.try_get_with((), async {
Ok::<_, diesel::result::Error>(Arc::new(Instance::dead_instances(&mut data.pool()).await?))
})
.await?;
inbox.retain(|i| {
let domain = i.domain().expect("has domain").to_string();
!dead_instances.contains(&domain)
});
info!("Sending activity {}", activity.id().to_string());
let activity = WithContext::new(activity, CONTEXT.deref().clone());
let form = SentActivityForm {
ap_id: activity.id().clone().into(),
data: serde_json::to_value(activity.clone())?,
sensitive,
};
SentActivity::create(&mut data.pool(), form).await?;
send_activity(activity, actor, inbox, data).await?;
Ok(())
}
pub async fn handle_outgoing_activities(context: Data<LemmyContext>) -> LemmyResult<()> {
while let Some(data) = ActivityChannel::retrieve_activity().await {
match_outgoing_activities(data, &context.reset_request_count()).await?
}
Ok(())
}
pub async fn match_outgoing_activities(
data: SendActivityData,
context: &Data<LemmyContext>,
) -> LemmyResult<()> {
let context = context.reset_request_count();
let fed_task = async {
use SendActivityData::*;
match data {
CreatePost(post) | UpdatePost(post) => {
let creator_id = post.creator_id;
CreateOrUpdatePage::send(post, creator_id, CreateOrUpdateType::Create, context).await
}
CreateComment(comment) | UpdateComment(comment) => {
let creator_id = comment.creator_id;
CreateOrUpdateNote::send(comment, creator_id, CreateOrUpdateType::Create, context).await
}
DeleteComment(comment, actor, community) => {
let is_deleted = comment.deleted;
let deletable = DeletableObjects::Comment(comment.into());
send_apub_delete_in_community(actor, community, deletable, None, is_deleted, &context).await
}
RemoveComment(comment, actor, community, reason) => {
let is_removed = comment.removed;
let deletable = DeletableObjects::Comment(comment.into());
send_apub_delete_in_community(actor, community, deletable, reason, is_removed, &context)
.await
}
LikePostOrComment(object_id, person, community, score) => {
send_like_activity(object_id, person, community, score, context).await
}
SendActivityData::FollowCommunity(community, person, follow) => {
send_follow_community(community, person, follow, &context).await
}
}
};
if *SYNCHRONOUS_FEDERATION {
fed_task.await?;
} else {
spawn_try_task(fed_task);
}
Ok(())
}