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use openssl::error::ErrorStack;
use openssl::ssl::HandshakeError;
use protobuf::ProtobufError;
use serde_json::error::Error as SerializationError;
use std::error::Error as StdError;
use std::fmt::{Display, Formatter, Result};
use std::io::Error as IoError;
use std::net::TcpStream;
#[derive(Debug)]
pub enum SslError {
Generic(ErrorStack),
Handshake(HandshakeError<TcpStream>),
}
impl Display for SslError {
fn fmt(&self, f: &mut Formatter) -> Result {
match *self {
SslError::Generic(ref err) => Display::fmt(&err, f),
SslError::Handshake(ref err) => Display::fmt(&err, f),
}
}
}
impl StdError for SslError {
fn description(&self) -> &str {
match *self {
SslError::Generic(ref e) => e.description(),
SslError::Handshake(ref e) => e.description(),
}
}
fn source(&self) -> Option<&(dyn StdError + 'static)> {
match *self {
SslError::Generic(ref e) => e.source(),
SslError::Handshake(ref e) => e.source(),
}
}
}
#[derive(Debug)]
pub enum Error {
Internal(String),
Io(IoError),
Protobuf(ProtobufError),
Serialization(SerializationError),
Ssl(SslError),
}
impl Display for Error {
fn fmt(&self, f: &mut Formatter) -> Result {
match *self {
Error::Internal(ref message) => f.write_str(message),
Error::Io(ref err) => Display::fmt(&err, f),
Error::Protobuf(ref err) => Display::fmt(&err, f),
Error::Serialization(ref err) => Display::fmt(&err, f),
Error::Ssl(ref err) => Display::fmt(&err, f),
}
}
}
impl StdError for Error {
fn description(&self) -> &str {
match *self {
Error::Internal(ref message) => message,
Error::Io(ref err) => err.description(),
Error::Protobuf(ref err) => err.description(),
Error::Serialization(ref err) => err.description(),
Error::Ssl(ref err) => err.description(),
}
}
fn source(&self) -> Option<&(dyn StdError + 'static)> {
match *self {
Error::Io(ref err) => Some(err),
Error::Protobuf(ref err) => Some(err),
Error::Ssl(ref err) => Some(err),
Error::Serialization(ref err) => Some(err),
Error::Internal(_) => None,
}
}
}
impl From<IoError> for Error {
fn from(err: IoError) -> Error {
Error::Io(err)
}
}
impl From<ProtobufError> for Error {
fn from(err: ProtobufError) -> Error {
Error::Protobuf(err)
}
}
impl From<SerializationError> for Error {
fn from(err: SerializationError) -> Error {
Error::Serialization(err)
}
}
impl From<ErrorStack> for Error {
fn from(err: ErrorStack) -> Error {
Error::Ssl(SslError::Generic(err))
}
}
impl From<HandshakeError<TcpStream>> for Error {
fn from(err: HandshakeError<TcpStream>) -> Error {
Error::Ssl(SslError::Handshake(err))
}
}