1 files changed, 112 insertions, 0 deletions
diff --git a/src/util/error.rs b/src/util/error.rs
new file mode 100644
index 00000000..f73d6915
--- /dev/null
+++ b/src/util/error.rs
@@ -0,0 +1,112 @@
+use err_derive::Error;
+use hyper::StatusCode;
+use std::io;
+
+use crate::data::*;
+
+#[derive(Debug, Error)]
+pub enum RPCError {
+	#[error(display = "Node is down: {:?}.", _0)]
+	NodeDown(UUID),
+	#[error(display = "Timeout: {}", _0)]
+	Timeout(#[error(source)] tokio::time::Elapsed),
+	#[error(display = "HTTP error: {}", _0)]
+	HTTP(#[error(source)] http::Error),
+	#[error(display = "Hyper error: {}", _0)]
+	Hyper(#[error(source)] hyper::Error),
+	#[error(display = "Messagepack encode error: {}", _0)]
+	RMPEncode(#[error(source)] rmp_serde::encode::Error),
+	#[error(display = "Messagepack decode error: {}", _0)]
+	RMPDecode(#[error(source)] rmp_serde::decode::Error),
+	#[error(display = "Too many errors: {:?}", _0)]
+	TooManyErrors(Vec<String>),
+}
+
+#[derive(Debug, Error)]
+pub enum Error {
+	#[error(display = "IO error: {}", _0)]
+	Io(#[error(source)] io::Error),
+
+	#[error(display = "Hyper error: {}", _0)]
+	Hyper(#[error(source)] hyper::Error),
+
+	#[error(display = "HTTP error: {}", _0)]
+	HTTP(#[error(source)] http::Error),
+
+	#[error(display = "Invalid HTTP header value: {}", _0)]
+	HTTPHeader(#[error(source)] http::header::ToStrError),
+
+	#[error(display = "TLS error: {}", _0)]
+	TLS(#[error(source)] rustls::TLSError),
+
+	#[error(display = "PKI error: {}", _0)]
+	PKI(#[error(source)] webpki::Error),
+
+	#[error(display = "Sled error: {}", _0)]
+	Sled(#[error(source)] sled::Error),
+
+	#[error(display = "Messagepack encode error: {}", _0)]
+	RMPEncode(#[error(source)] rmp_serde::encode::Error),
+	#[error(display = "Messagepack decode error: {}", _0)]
+	RMPDecode(#[error(source)] rmp_serde::decode::Error),
+	#[error(display = "JSON error: {}", _0)]
+	JSON(#[error(source)] serde_json::error::Error),
+	#[error(display = "TOML decode error: {}", _0)]
+	TomlDecode(#[error(source)] toml::de::Error),
+
+	#[error(display = "Timeout: {}", _0)]
+	RPCTimeout(#[error(source)] tokio::time::Elapsed),
+
+	#[error(display = "Tokio join error: {}", _0)]
+	TokioJoin(#[error(source)] tokio::task::JoinError),
+
+	#[error(display = "RPC call error: {}", _0)]
+	RPC(#[error(source)] RPCError),
+
+	#[error(display = "Remote error: {} (status code {})", _0, _1)]
+	RemoteError(String, StatusCode),
+
+	#[error(display = "Bad request: {}", _0)]
+	BadRequest(String),
+
+	#[error(display = "Not found")]
+	NotFound,
+
+	#[error(display = "Corrupt data: does not match hash {:?}", _0)]
+	CorruptData(Hash),
+
+	#[error(display = "{}", _0)]
+	Message(String),
+}
+
+impl Error {
+	pub fn http_status_code(&self) -> StatusCode {
+		match self {
+			Error::BadRequest(_) => StatusCode::BAD_REQUEST,
+			Error::NotFound => StatusCode::NOT_FOUND,
+			Error::RPC(_) => StatusCode::SERVICE_UNAVAILABLE,
+			_ => StatusCode::INTERNAL_SERVER_ERROR,
+		}
+	}
+}
+
+impl From<sled::TransactionError<Error>> for Error {
+	fn from(e: sled::TransactionError<Error>) -> Error {
+		match e {
+			sled::TransactionError::Abort(x) => x,
+			sled::TransactionError::Storage(x) => Error::Sled(x),
+		}
+	}
+}
+
+impl<T> From<tokio::sync::watch::error::SendError<T>> for Error {
+	fn from(_e: tokio::sync::watch::error::SendError<T>) -> Error {
+		Error::Message(format!("Watch send error"))
+	}
+}
+
+impl<T> From<tokio::sync::mpsc::error::SendError<T>> for Error {
+	fn from(_e: tokio::sync::mpsc::error::SendError<T>) -> Error {
+		Error::Message(format!("MPSC send error"))
+	}
+}