+
+impl ImageObject {
+ pub(crate) fn new(url: DbUrl) -> Self {
+ ImageObject {
+ kind: ImageType::Image,
+ url: url.into(),
+ }
+ }
+}
+
+#[derive(Clone, Debug, Default, Deserialize, Serialize)]
+#[serde(transparent)]
+pub struct Unparsed(HashMap<String, serde_json::Value>);
+
+pub(crate) trait Id {
+ fn object_id(&self) -> &Url;
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(untagged)]
+pub(crate) enum IdOrNestedObject<Kind: Id> {
+ Id(Url),
+ NestedObject(Kind),
+}
+
+impl<Kind: Id + DeserializeOwned + Send> IdOrNestedObject<Kind> {
+ pub(crate) fn id(&self) -> &Url {
+ match self {
+ IdOrNestedObject::Id(i) => i,
+ IdOrNestedObject::NestedObject(n) => n.object_id(),
+ }
+ }
+ pub(crate) async fn object(self, context: &Data<LemmyContext>) -> Result<Kind, LemmyError> {
+ match self {
+ // TODO: move IdOrNestedObject struct to library and make fetch_object_http private
+ IdOrNestedObject::Id(i) => Ok(fetch_object_http(&i, context).await?),
+ IdOrNestedObject::NestedObject(o) => Ok(o),
+ }
+ }
+}
+
+#[async_trait::async_trait]
+pub trait InCommunity {
+ // TODO: after we use audience field and remove backwards compat, it should be possible to change
+ // this to simply `fn community(&self) -> Result<ObjectId<ApubCommunity>, LemmyError>`
+ async fn community(&self, context: &Data<LemmyContext>) -> Result<ApubCommunity, LemmyError>;
+}
+
+#[cfg(test)]
+pub(crate) mod tests {
+ #![allow(clippy::unwrap_used)]
+ #![allow(clippy::indexing_slicing)]
+
+ use activitypub_federation::protocol::context::WithContext;
+ use assert_json_diff::assert_json_include;
+ use lemmy_utils::error::LemmyError;
+ use serde::{de::DeserializeOwned, Serialize};
+ use std::{collections::HashMap, fs::File, io::BufReader};
+
+ pub(crate) fn file_to_json_object<T: DeserializeOwned>(path: &str) -> Result<T, LemmyError> {
+ let file = File::open(path)?;
+ let reader = BufReader::new(file);
+ Ok(serde_json::from_reader(reader)?)
+ }
+
+ pub(crate) fn test_json<T: DeserializeOwned>(path: &str) -> Result<WithContext<T>, LemmyError> {
+ file_to_json_object::<WithContext<T>>(path)
+ }
+
+ /// Check that json deserialize -> serialize -> deserialize gives identical file as initial one.
+ /// Ensures that there are no breaking changes in sent data.
+ pub(crate) fn test_parse_lemmy_item<T: Serialize + DeserializeOwned + std::fmt::Debug>(
+ path: &str,
+ ) -> Result<T, LemmyError> {
+ // parse file as T
+ let parsed = file_to_json_object::<T>(path)?;
+
+ // parse file into hashmap, which ensures that every field is included
+ let raw = file_to_json_object::<HashMap<String, serde_json::Value>>(path)?;
+ // assert that all fields are identical, otherwise print diff
+ assert_json_include!(actual: &parsed, expected: raw);
+ Ok(parsed)
+ }
+}