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use err_derive::Error;
use hyper::header::HeaderValue;
use hyper::{Body, HeaderMap, StatusCode};
use garage_model::helper::error::Error as HelperError;
use crate::generic_server::ApiError;
use crate::common_error::CommonError;
pub use crate::common_error::{OkOrBadRequest, OkOrInternalError};
/// Errors of this crate
#[derive(Debug, Error)]
pub enum Error {
#[error(display = "{}", _0)]
/// Error from common error
CommonError(CommonError),
// Category: cannot process
/// No proper api key was used, or the signature was invalid
#[error(display = "Forbidden: {}", _0)]
Forbidden(String),
/// The API access key does not exist
#[error(display = "Access key not found")]
NoSuchAccessKey,
/// The bucket requested don't exists
#[error(display = "Bucket not found")]
NoSuchBucket,
/// Tried to create a bucket that already exist
#[error(display = "Bucket already exists")]
BucketAlreadyExists,
/// Tried to delete a non-empty bucket
#[error(display = "Tried to delete a non-empty bucket")]
BucketNotEmpty,
// Category: bad request
/// Bucket name is not valid according to AWS S3 specs
#[error(display = "Invalid bucket name")]
InvalidBucketName,
/// The client sent a request for an action not supported by garage
#[error(display = "Unimplemented action: {}", _0)]
NotImplemented(String),
}
impl<T> From<T> for Error
where
CommonError: From<T>,
{
fn from(err: T) -> Self {
Error::CommonError(CommonError::from(err))
}
}
impl From<HelperError> for Error {
fn from(err: HelperError) -> Self {
match err {
HelperError::Internal(i) => Self::CommonError(CommonError::InternalError(i)),
HelperError::BadRequest(b) => Self::CommonError(CommonError::BadRequest(b)),
HelperError::InvalidBucketName(_) => Self::InvalidBucketName,
HelperError::NoSuchAccessKey(_) => Self::NoSuchAccessKey,
HelperError::NoSuchBucket(_) => Self::NoSuchBucket,
}
}
}
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::NoSuchAccessKey | Error::NoSuchBucket => StatusCode::NOT_FOUND,
Error::BucketNotEmpty | Error::BucketAlreadyExists => StatusCode::CONFLICT,
Error::Forbidden(_) => StatusCode::FORBIDDEN,
Error::NotImplemented(_) => StatusCode::NOT_IMPLEMENTED,
Error::InvalidBucketName => StatusCode::BAD_REQUEST,
}
}
fn add_http_headers(&self, _header_map: &mut HeaderMap<HeaderValue>) {
// nothing
}
fn http_body(&self, garage_region: &str, path: &str) -> Body {
Body::from(format!(
"ERROR: {}\n\ngarage region: {}\npath: {}",
self, garage_region, path
))
}
}
impl Error {
pub fn bad_request<M: ToString>(msg: M) -> Self {
Self::CommonError(CommonError::BadRequest(msg.to_string()))
}
}
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