split error into directory

Signed-off-by: Jason Volk <jason@zemos.net>

src/core/error/response.rs

@@ -0,0 +1,88 @@
+use bytes::BytesMut;
+use http::StatusCode;
+use http_body_util::Full;
+use ruma::api::{client::uiaa::UiaaResponse, OutgoingResponse};
+
+use super::Error;
+use crate::error;
+
+impl axum::response::IntoResponse for Error {
+	fn into_response(self) -> axum::response::Response {
+		let response: UiaaResponse = self.into();
+		response
+			.try_into_http_response::<BytesMut>()
+			.inspect_err(|e| error!("error response error: {e}"))
+			.map_or_else(
+				|_| StatusCode::INTERNAL_SERVER_ERROR.into_response(),
+				|r| r.map(BytesMut::freeze).map(Full::new).into_response(),
+			)
+	}
+}
+
+impl From<Error> for UiaaResponse {
+	fn from(error: Error) -> Self {
+		if let Error::Uiaa(uiaainfo) = error {
+			return Self::AuthResponse(uiaainfo);
+		}
+
+		let body = ruma::api::client::error::ErrorBody::Standard {
+			kind: error.kind(),
+			message: error.message(),
+		};
+
+		Self::MatrixError(ruma::api::client::error::Error {
+			status_code: error.status_code(),
+			body,
+		})
+	}
+}
+
+pub(super) fn bad_request_code(kind: &ruma::api::client::error::ErrorKind) -> StatusCode {
+	use ruma::api::client::error::ErrorKind::*;
+
+	match kind {
+		GuestAccessForbidden
+		| ThreepidAuthFailed
+		| UserDeactivated
+		| ThreepidDenied
+		| WrongRoomKeysVersion {
+			..
+		}
+		| Forbidden {
+			..
+		} => StatusCode::FORBIDDEN,
+
+		UnknownToken {
+			..
+		}
+		| MissingToken
+		| Unauthorized => StatusCode::UNAUTHORIZED,
+
+		LimitExceeded {
+			..
+		} => StatusCode::TOO_MANY_REQUESTS,
+
+		TooLarge => StatusCode::PAYLOAD_TOO_LARGE,
+
+		NotFound | Unrecognized => StatusCode::NOT_FOUND,
+
+		_ => StatusCode::BAD_REQUEST,
+	}
+}
+
+pub(super) fn ruma_error_message(error: &ruma::api::client::error::Error) -> String {
+	if let ruma::api::client::error::ErrorBody::Standard {
+		message,
+		..
+	} = &error.body
+	{
+		return message.to_string();
+	}
+
+	format!("{error}")
+}
+
+pub(super) fn ruma_error_kind(e: &ruma::api::client::error::Error) -> &ruma::api::client::error::ErrorKind {
+	e.error_kind()
+		.unwrap_or(&ruma::api::client::error::ErrorKind::Unknown)
+}