Slop/activitypub-federation-rust
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Deduplicate deserialized recipients

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Drop repeated recipient URLs after deserialization so equivalent public
aliases such as `Public`, `as:Public`, and the canonical public URL do
not produce duplicate entries.

Update the helper documentation and tests to match the deduplicated
result.
This commit is contained in:
Hong Minhee 2026-04-24 11:32:07 +09:00
parent eb45245dfd
commit 7cfd3945c0
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GPG key ID: C429ECD57EED6CCA
1 changed files with 5 additions and 8 deletions
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13
src/protocol/helpers.rs
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@ -1,6 +1,7 @@
//! Serde deserialization functions which help to receive differently shaped data
use activitystreams_kinds::public;
use itertools::Itertools;
use serde::{de::Error, Deserialize, Deserializer};
use serde_json::Value;
use url::Url;
@ -35,7 +36,7 @@ use url::Url;
/// assert_eq!(multiple.to.len(), 2);
///
/// let note: Note = serde_json::from_str(r#"{"to": ["Public", "as:Public"]}"#)?;
/// assert_eq!(note.to, vec![public(), public()]);
/// assert_eq!(note.to, vec![public()]);
/// # Ok::<(), anyhow::Error>(())
/// ```
pub fn deserialize_one_or_many<'de, D>(deserializer: D) -> Result<Vec<Url>, D::Error>
@ -64,7 +65,8 @@ where
Value::String(value) => Url::parse(&value).map_err(D::Error::custom),
value => Url::deserialize(value).map_err(D::Error::custom),
})
.collect()
.collect::<Result<Vec<_>, _>>()
.map(|values| values.into_iter().unique().collect())
}
/// Deserialize JSON single value or single element array into single value.
@ -224,12 +226,7 @@ mod tests {
assert_eq!(
note.to,
vec![
Url::parse("https://example.com/c/main")?,
public(),
public(),
public(),
]
vec![Url::parse("https://example.com/c/main")?, public(),]
);
Ok(())