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Reject activities from blocked instances before verifying signature

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silverpill 2022-12-19 15:12:21 +00:00
parent a2f7140164
commit 4d31b9f9f9
1 changed files with 12 additions and 0 deletions
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12
src/activitypub/receiver.rs
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@ -229,6 +229,18 @@ pub async fn receive_activity(
let activity_actor = activity["actor"].as_str()
.ok_or(ValidationError("actor property is missing"))?;
let actor_hostname = url::Url::parse(activity_actor)
.map_err(|_| ValidationError("invalid actor ID"))?
.host_str()
.ok_or(ValidationError("invalid actor ID"))?
.to_string();
if config.blocked_instances.iter()
.any(|instance_hostname| &actor_hostname == instance_hostname)
{
log::warn!("ignoring activity from blocked instance: {}", activity);
return Ok(());
};
let is_self_delete = if activity_type == DELETE {
let object_id = find_object_id(&activity["object"])?;
object_id == activity_actor