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Error refactoring

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This commit is contained in:
Alex Auvolat
2022-05-13 15:04:53 +02:00
parent c0fb9fd0fe
commit 96b11524d5
24 changed files with 135 additions and 206 deletions
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src/api/error.rs
+31 -96
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@@ -7,24 +7,17 @@ use hyper::{Body, HeaderMap, StatusCode};
use garage_model::helper::error::Error as HelperError;
use garage_util::error::Error as GarageError;
use crate::common_error::CommonError;
pub use crate::common_error::{OkOrBadRequest, OkOrInternalError};
use crate::generic_server::ApiError;
use crate::s3::xml as s3_xml;
/// Errors of this crate
#[derive(Debug, Error)]
pub enum Error {
// Category: internal error
/// Error related to deeper parts of Garage
#[error(display = "Internal error: {}", _0)]
InternalError(#[error(source)] GarageError),
/// Error related to Hyper
#[error(display = "Internal error (Hyper error): {}", _0)]
Hyper(#[error(source)] hyper::Error),
/// Error related to HTTP
#[error(display = "Internal error (HTTP error): {}", _0)]
Http(#[error(source)] http::Error),
#[error(display = "{}", _0)]
/// Error from common error
CommonError(CommonError),
// Category: cannot process
/// No proper api key was used, or the signature was invalid
@@ -101,10 +94,6 @@ pub enum Error {
#[error(display = "Invalid HTTP range: {:?}", _0)]
InvalidRange(#[error(from)] (http_range::HttpRangeParseError, u64)),
/// The client sent an invalid request
#[error(display = "Bad request: {}", _0)]
BadRequest(String),
/// The client asked for an invalid return format (invalid Accept header)
#[error(display = "Not acceptable: {}", _0)]
NotAcceptable(String),
@@ -114,6 +103,15 @@ pub enum Error {
NotImplemented(String),
}
impl<T> From<T> for Error
where
CommonError: From<T>,
{
fn from(err: T) -> Self {
Error::CommonError(CommonError::from(err))
}
}
impl From<roxmltree::Error> for Error {
fn from(err: roxmltree::Error) -> Self {
Self::InvalidXml(format!("{}", err))
@@ -129,16 +127,16 @@ impl From<quick_xml::de::DeError> for Error {
impl From<HelperError> for Error {
fn from(err: HelperError) -> Self {
match err {
HelperError::Internal(i) => Self::InternalError(i),
HelperError::BadRequest(b) => Self::BadRequest(b),
e => Self::BadRequest(format!("{}", e)),
HelperError::Internal(i) => Self::CommonError(CommonError::InternalError(i)),
HelperError::BadRequest(b) => Self::CommonError(CommonError::BadRequest(b)),
e => Self::CommonError(CommonError::BadRequest(format!("{}", e))),
}
}
}
impl From<multer::Error> for Error {
fn from(err: multer::Error) -> Self {
Self::BadRequest(err.to_string())
Self::bad_request(err)
}
}
@@ -157,18 +155,26 @@ impl Error {
Error::Forbidden(_) => "AccessDenied",
Error::AuthorizationHeaderMalformed(_) => "AuthorizationHeaderMalformed",
Error::NotImplemented(_) => "NotImplemented",
Error::InternalError(
Error::CommonError(CommonError::InternalError(
GarageError::Timeout
| GarageError::RemoteError(_)
| GarageError::Quorum(_, _, _, _),
) => "ServiceUnavailable",
Error::InternalError(_) | Error::Hyper(_) | Error::Http(_) => "InternalError",
)) => "ServiceUnavailable",
Error::CommonError(
CommonError::InternalError(_) | CommonError::Hyper(_) | CommonError::Http(_),
) => "InternalError",
_ => "InvalidRequest",
}
}
pub fn internal_error<M: ToString>(msg: M) -> Self {
Self::CommonError(CommonError::InternalError(GarageError::Message(
msg.to_string(),
)))
}
pub fn bad_request<M: ToString>(msg: M) -> Self {
Self::BadRequest(msg.to_string())
Self::CommonError(CommonError::BadRequest(msg.to_string()))
}
}
@@ -176,19 +182,12 @@ impl ApiError for Error {
/// Get the HTTP status code that best represents the meaning of the error for the client
fn http_status_code(&self) -> StatusCode {
match self {
Error::CommonError(c) => c.http_status_code(),
Error::NoSuchKey | Error::NoSuchBucket | Error::NoSuchUpload => StatusCode::NOT_FOUND,
Error::BucketNotEmpty | Error::BucketAlreadyExists => StatusCode::CONFLICT,
Error::PreconditionFailed => StatusCode::PRECONDITION_FAILED,
Error::Forbidden(_) => StatusCode::FORBIDDEN,
Error::NotAcceptable(_) => StatusCode::NOT_ACCEPTABLE,
Error::InternalError(
GarageError::Timeout
| GarageError::RemoteError(_)
| GarageError::Quorum(_, _, _, _),
) => StatusCode::SERVICE_UNAVAILABLE,
Error::InternalError(_) | Error::Hyper(_) | Error::Http(_) => {
StatusCode::INTERNAL_SERVER_ERROR
}
Error::InvalidRange(_) => StatusCode::RANGE_NOT_SATISFIABLE,
Error::NotImplemented(_) => StatusCode::NOT_IMPLEMENTED,
_ => StatusCode::BAD_REQUEST,
@@ -230,67 +229,3 @@ impl ApiError for Error {
}))
}
}
/// Trait to map error to the Bad Request error code
pub trait OkOrBadRequest {
type S;
fn ok_or_bad_request<M: AsRef<str>>(self, reason: M) -> Result<Self::S, Error>;
}
impl<T, E> OkOrBadRequest for Result<T, E>
where
E: std::fmt::Display,
{
type S = T;
fn ok_or_bad_request<M: AsRef<str>>(self, reason: M) -> Result<T, Error> {
match self {
Ok(x) => Ok(x),
Err(e) => Err(Error::BadRequest(format!("{}: {}", reason.as_ref(), e))),
}
}
}
impl<T> OkOrBadRequest for Option<T> {
type S = T;
fn ok_or_bad_request<M: AsRef<str>>(self, reason: M) -> Result<T, Error> {
match self {
Some(x) => Ok(x),
None => Err(Error::BadRequest(reason.as_ref().to_string())),
}
}
}
/// Trait to map an error to an Internal Error code
pub trait OkOrInternalError {
type S;
fn ok_or_internal_error<M: AsRef<str>>(self, reason: M) -> Result<Self::S, Error>;
}
impl<T, E> OkOrInternalError for Result<T, E>
where
E: std::fmt::Display,
{
type S = T;
fn ok_or_internal_error<M: AsRef<str>>(self, reason: M) -> Result<T, Error> {
match self {
Ok(x) => Ok(x),
Err(e) => Err(Error::InternalError(GarageError::Message(format!(
"{}: {}",
reason.as_ref(),
e
)))),
}
}
}
impl<T> OkOrInternalError for Option<T> {
type S = T;
fn ok_or_internal_error<M: AsRef<str>>(self, reason: M) -> Result<T, Error> {
match self {
Some(x) => Ok(x),
None => Err(Error::InternalError(GarageError::Message(
reason.as_ref().to_string(),
))),
}
}
}