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actix-web/awc/src/error.rs
Otavio Salvador 146ae4da18 Implement std::error::Error for our custom errors
For allowing a more ergonomic use and better integration on the
ecosystem, this adds the `std::error::Error` `impl` for our custom
errors.

We intent to drop this hand made code once `derive_more` finishes the
addition of the Error derive support[1]. Until that is available, we
need to live with that.

1. https://github.com/JelteF/derive_more/issues/92

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2020-03-18 00:22:18 -03:00

77 lines
2.4 KiB
Rust

//! Http client errors
pub use actix_http::client::{
ConnectError, FreezeRequestError, InvalidUrl, SendRequestError,
};
pub use actix_http::error::PayloadError;
pub use actix_http::http::Error as HttpError;
pub use actix_http::ws::HandshakeError as WsHandshakeError;
pub use actix_http::ws::ProtocolError as WsProtocolError;
use actix_http::ResponseError;
use serde_json::error::Error as JsonError;
use actix_http::http::{header::HeaderValue, StatusCode};
use derive_more::{Display, From};
/// Websocket client error
#[derive(Debug, Display, From)]
pub enum WsClientError {
/// Invalid response status
#[display(fmt = "Invalid response status")]
InvalidResponseStatus(StatusCode),
/// Invalid upgrade header
#[display(fmt = "Invalid upgrade header")]
InvalidUpgradeHeader,
/// Invalid connection header
#[display(fmt = "Invalid connection header")]
InvalidConnectionHeader(HeaderValue),
/// Missing CONNECTION header
#[display(fmt = "Missing CONNECTION header")]
MissingConnectionHeader,
/// Missing SEC-WEBSOCKET-ACCEPT header
#[display(fmt = "Missing SEC-WEBSOCKET-ACCEPT header")]
MissingWebSocketAcceptHeader,
/// Invalid challenge response
#[display(fmt = "Invalid challenge response")]
InvalidChallengeResponse(String, HeaderValue),
/// Protocol error
#[display(fmt = "{}", _0)]
Protocol(WsProtocolError),
/// Send request error
#[display(fmt = "{}", _0)]
SendRequest(SendRequestError),
}
impl std::error::Error for WsClientError {}
impl From<InvalidUrl> for WsClientError {
fn from(err: InvalidUrl) -> Self {
WsClientError::SendRequest(err.into())
}
}
impl From<HttpError> for WsClientError {
fn from(err: HttpError) -> Self {
WsClientError::SendRequest(err.into())
}
}
/// A set of errors that can occur during parsing json payloads
#[derive(Debug, Display, From)]
pub enum JsonPayloadError {
/// Content type error
#[display(fmt = "Content type error")]
ContentType,
/// Deserialize error
#[display(fmt = "Json deserialize error: {}", _0)]
Deserialize(JsonError),
/// Payload error
#[display(fmt = "Error that occur during reading payload: {}", _0)]
Payload(PayloadError),
}
impl std::error::Error for JsonPayloadError {}
/// Return `InternalServerError` for `JsonPayloadError`
impl ResponseError for JsonPayloadError {}