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use http::header::{InvalidHeaderName, InvalidHeaderValue};
use std::error::Error;
use std::fmt;
use std::str::Utf8Error;
#[derive(Debug)]
enum SigningErrorKind {
FailedToCreateCanonicalRequest { source: CanonicalRequestError },
}
#[derive(Debug)]
pub struct SigningError {
kind: SigningErrorKind,
}
impl fmt::Display for SigningError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self.kind {
SigningErrorKind::FailedToCreateCanonicalRequest { .. } => {
write!(f, "failed to create canonical request")
}
}
}
}
impl Error for SigningError {
fn source(&self) -> Option<&(dyn Error + 'static)> {
match &self.kind {
SigningErrorKind::FailedToCreateCanonicalRequest { source } => Some(source),
}
}
}
impl From<CanonicalRequestError> for SigningError {
fn from(source: CanonicalRequestError) -> Self {
Self {
kind: SigningErrorKind::FailedToCreateCanonicalRequest { source },
}
}
}
#[derive(Debug)]
enum CanonicalRequestErrorKind {
InvalidHeaderName { source: InvalidHeaderName },
InvalidHeaderValue { source: InvalidHeaderValue },
InvalidUtf8InHeaderValue { source: Utf8Error },
}
#[derive(Debug)]
pub(crate) struct CanonicalRequestError {
kind: CanonicalRequestErrorKind,
}
impl fmt::Display for CanonicalRequestError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
use CanonicalRequestErrorKind::*;
match self.kind {
InvalidHeaderName { .. } => write!(f, "invalid header name"),
InvalidHeaderValue { .. } => write!(f, "invalid header value"),
InvalidUtf8InHeaderValue { .. } => write!(f, "invalid UTF-8 in header value"),
}
}
}
impl Error for CanonicalRequestError {
fn source(&self) -> Option<&(dyn Error + 'static)> {
use CanonicalRequestErrorKind::*;
match &self.kind {
InvalidHeaderName { source } => Some(source),
InvalidHeaderValue { source } => Some(source),
InvalidUtf8InHeaderValue { source } => Some(source),
}
}
}
impl CanonicalRequestError {
pub(crate) fn invalid_utf8_in_header_value(source: Utf8Error) -> Self {
Self {
kind: CanonicalRequestErrorKind::InvalidUtf8InHeaderValue { source },
}
}
}
impl From<InvalidHeaderName> for CanonicalRequestError {
fn from(source: InvalidHeaderName) -> Self {
Self {
kind: CanonicalRequestErrorKind::InvalidHeaderName { source },
}
}
}
impl From<InvalidHeaderValue> for CanonicalRequestError {
fn from(source: InvalidHeaderValue) -> Self {
Self {
kind: CanonicalRequestErrorKind::InvalidHeaderValue { source },
}
}
}