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Avoid stack overflow when fetching deeply nested comments (#124)

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This commit is contained in:
Felix Ableitner 2024-09-13 11:21:26 +02:00
parent 2079b82de7
commit 027b386514
1 changed files with 7 additions and 3 deletions
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10
src/fetch/object_id.rs
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@ -146,6 +146,10 @@ where
Object::read_from_id(*id, data).await Object::read_from_id(*id, data).await
} }
/// Fetch object from origin instance over HTTP, then verify and parse it.
///
/// Uses Box::pin to wrap futures to reduce stack size and avoid stack overflow when
/// when fetching objects recursively.
async fn dereference_from_http( async fn dereference_from_http(
&self, &self,
data: &Data<<Kind as Object>::DataType>, data: &Data<<Kind as Object>::DataType>,
@ -154,7 +158,7 @@ where
where where
<Kind as Object>::Error: From<Error>, <Kind as Object>::Error: From<Error>,
{ {
let res = fetch_object_http(&self.0, data).await; let res = Box::pin(fetch_object_http(&self.0, data)).await;
if let Err(Error::ObjectDeleted(url)) = res { if let Err(Error::ObjectDeleted(url)) = res {
if let Some(db_object) = db_object { if let Some(db_object) = db_object {
@ -166,8 +170,8 @@ where
let res = res?; let res = res?;
let redirect_url = &res.url; let redirect_url = &res.url;
Kind::verify(&res.object, redirect_url, data).await?; Box::pin(Kind::verify(&res.object, redirect_url, data)).await?;
Kind::from_json(res.object, data).await Box::pin(Kind::from_json(res.object, data)).await
} }
/// Returns true if the object's domain matches the one defined in [[FederationConfig.domain]]. /// Returns true if the object's domain matches the one defined in [[FederationConfig.domain]].