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feat(playstation): Emit outcome for skipped fields #4862

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tobias-wilfert
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@tobias-wilfert tobias-wilfert commented Jun 25, 2025

Currently there is no communication to the user about a field being skipped. This PR adds the logic for emitting outcomes for skipped fields such that the users are aware of these skipped fields.

Follow up to: #4793

Comment on lines +181 to +192
impl IntoResponse for BadMultipart {
fn into_response(self) -> Response {
let status_code = match self {
BadMultipart::Multipart(
multer::Error::FieldSizeExceeded { .. } | multer::Error::StreamSizeExceeded { .. },
) => StatusCode::PAYLOAD_TOO_LARGE,
_ => StatusCode::BAD_REQUEST,
};

(status_code, ApiErrorResponse::from_error(&self)).into_response()
}
}
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This copies the behaviour found here:

fn into_response(self) -> Response {
let Self(ref error) = self;
let status_code = match error {
multer::Error::FieldSizeExceeded { .. } => StatusCode::PAYLOAD_TOO_LARGE,
multer::Error::StreamSizeExceeded { .. } => StatusCode::PAYLOAD_TOO_LARGE,
_ => StatusCode::BAD_REQUEST,
};
(status_code, ApiErrorResponse::from_error(error)).into_response()

@@ -177,7 +215,10 @@ where
let content_type = field.content_type().cloned();
let field = LimitedField::new(field, config.max_attachment_size());
match field.bytes().await {
Err(multer::Error::FieldSizeExceeded { .. }) if ignore_large_fields => continue,
Err(multer::Error::FieldSizeExceeded { limit, .. }) if ignore_large_fields => {
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Cheating here a bit by putting the consumed size into the error rather than the limit that is breached such that we can use that value to generate the outcome.

Comment on lines 408 to 420
|quantity| {
outcome_aggregator.send(TrackOutcome {
timestamp: request_meta.received_at(),
scoping: request_meta.get_partial_scoping(),
outcome: Outcome::Invalid(DiscardReason::TooLarge(
DiscardItemType::Attachment(DiscardAttachmentType::Attachment),
)),
event_id: None,
remote_addr: request_meta.remote_addr(),
category: DataCategory::Attachment,
quantity,
})
},
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I tried making this a method of UnconstrainedMultipart but that did not work since we also need the self.multiparts when invoking multipart_items hence it is like this.

@tobias-wilfert tobias-wilfert self-assigned this Jun 25, 2025
@tobias-wilfert tobias-wilfert marked this pull request as ready for review June 26, 2025 06:34
@tobias-wilfert tobias-wilfert requested a review from a team as a code owner June 26, 2025 06:34
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@loewenheim loewenheim left a comment

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LGTM aside from a stylistic nitpick

@tobias-wilfert tobias-wilfert added this pull request to the merge queue Jul 18, 2025
Merged via the queue into master with commit ff85827 Jul 18, 2025
28 checks passed
@tobias-wilfert tobias-wilfert deleted the tobias-wilfert/feat/emit-outcome-for-skipped-fields branch July 18, 2025 10:48
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3 participants