use std::io::Error as IoError;
use serde_json::Error as SJError;
use openssl::error::ErrorStack;
use base64::DecodeError as B64Error;
use std::error;
use std::fmt;
macro_rules! impl_error {
($from:ty, $to:path) => {
impl From<$from> for Error {
fn from(e: $from) -> Self {
$to(format!("{:?}", e))
}
}
}
}
#[derive(Clone, Debug, PartialEq, Eq)]
pub enum Error {
SignatureExpired,
SignatureInvalid,
JWTInvalid,
IssuerInvalid,
ExpirationInvalid,
AudienceInvalid,
FormatInvalid(String),
IoError(String),
OpenSslError(String),
ProtocolError(String),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
Error::SignatureExpired => write!(f, "Signature expired."),
Error::SignatureInvalid => write!(f, "Signature invalid."),
Error::JWTInvalid => write!(f, "JWT invalid."),
Error::IssuerInvalid => write!(f, "Issuer invalid."),
Error::ExpirationInvalid => write!(f, "Expiration invalid."),
Error::AudienceInvalid => write!(f, "Audience invalid."),
Error::FormatInvalid(msg) => write!(f, "Format invalid: {}.", msg),
Error::IoError(msg) => write!(f, "IO error: {}.", msg),
Error::OpenSslError(msg) => write!(f, "Open SSL error: {}.", msg),
Error::ProtocolError(msg) => write!(f, "Protocol error: {}.", msg),
}
}
}
impl error::Error for Error {}
impl_error!{IoError, Error::IoError}
impl_error!{SJError, Error::FormatInvalid}
impl_error!{ErrorStack, Error::OpenSslError}
impl_error!{B64Error, Error::ProtocolError}