136 lines
4.1 KiB
Rust
136 lines
4.1 KiB
Rust
use err_derive::Error;
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use hyper::header::HeaderValue;
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use hyper::{Body, HeaderMap, StatusCode};
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use garage_model::helper::error::Error as HelperError;
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use crate::common_error::CommonError;
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pub use crate::common_error::{CommonErrorDerivative, OkOrBadRequest, OkOrInternalError};
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use crate::generic_server::ApiError;
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use crate::helpers::CustomApiErrorBody;
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use crate::signature::error::Error as SignatureError;
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/// Errors of this crate
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#[derive(Debug, Error)]
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pub enum Error {
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#[error(display = "{}", _0)]
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/// Error from common error
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Common(CommonError),
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// Category: cannot process
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/// Authorization Header Malformed
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#[error(display = "Authorization header malformed, expected scope: {}", _0)]
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AuthorizationHeaderMalformed(String),
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/// The object requested don't exists
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#[error(display = "Key not found")]
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NoSuchKey,
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/// Some base64 encoded data was badly encoded
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#[error(display = "Invalid base64: {}", _0)]
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InvalidBase64(#[error(source)] base64::DecodeError),
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/// The client sent a header with invalid value
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#[error(display = "Invalid header value: {}", _0)]
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InvalidHeader(#[error(source)] hyper::header::ToStrError),
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/// The client asked for an invalid return format (invalid Accept header)
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#[error(display = "Not acceptable: {}", _0)]
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NotAcceptable(String),
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/// The request contained an invalid UTF-8 sequence in its path or in other parameters
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#[error(display = "Invalid UTF-8: {}", _0)]
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InvalidUtf8Str(#[error(source)] std::str::Utf8Error),
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}
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impl<T> From<T> for Error
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where
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CommonError: From<T>,
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{
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fn from(err: T) -> Self {
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Error::Common(CommonError::from(err))
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}
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}
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impl CommonErrorDerivative for Error {}
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impl From<HelperError> for Error {
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fn from(err: HelperError) -> Self {
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match err {
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HelperError::Internal(i) => Self::Common(CommonError::InternalError(i)),
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HelperError::BadRequest(b) => Self::Common(CommonError::BadRequest(b)),
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HelperError::InvalidBucketName(n) => Self::Common(CommonError::InvalidBucketName(n)),
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HelperError::NoSuchBucket(n) => Self::Common(CommonError::NoSuchBucket(n)),
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e => Self::Common(CommonError::BadRequest(format!("{}", e))),
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}
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}
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}
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impl From<SignatureError> for Error {
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fn from(err: SignatureError) -> Self {
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match err {
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SignatureError::Common(c) => Self::Common(c),
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SignatureError::AuthorizationHeaderMalformed(c) => {
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Self::AuthorizationHeaderMalformed(c)
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}
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SignatureError::InvalidUtf8Str(i) => Self::InvalidUtf8Str(i),
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SignatureError::InvalidHeader(h) => Self::InvalidHeader(h),
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}
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}
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}
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impl Error {
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/// This returns a keyword for the corresponding error.
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/// Here, these keywords are not necessarily those from AWS S3,
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/// as we are building a custom API
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fn code(&self) -> &'static str {
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match self {
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Error::Common(c) => c.aws_code(),
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Error::NoSuchKey => "NoSuchKey",
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Error::NotAcceptable(_) => "NotAcceptable",
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Error::AuthorizationHeaderMalformed(_) => "AuthorizationHeaderMalformed",
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Error::InvalidBase64(_) => "InvalidBase64",
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Error::InvalidHeader(_) => "InvalidHeaderValue",
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Error::InvalidUtf8Str(_) => "InvalidUtf8String",
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}
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}
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}
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impl ApiError for Error {
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/// Get the HTTP status code that best represents the meaning of the error for the client
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fn http_status_code(&self) -> StatusCode {
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match self {
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Error::Common(c) => c.http_status_code(),
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Error::NoSuchKey => StatusCode::NOT_FOUND,
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Error::NotAcceptable(_) => StatusCode::NOT_ACCEPTABLE,
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Error::AuthorizationHeaderMalformed(_)
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| Error::InvalidBase64(_)
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| Error::InvalidHeader(_)
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| Error::InvalidUtf8Str(_) => StatusCode::BAD_REQUEST,
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}
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}
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fn add_http_headers(&self, header_map: &mut HeaderMap<HeaderValue>) {
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use hyper::header;
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header_map.append(header::CONTENT_TYPE, "application/json".parse().unwrap());
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}
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fn http_body(&self, garage_region: &str, path: &str) -> Body {
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let error = CustomApiErrorBody {
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code: self.code().to_string(),
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message: format!("{}", self),
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path: path.to_string(),
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region: garage_region.to_string(),
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};
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Body::from(serde_json::to_string_pretty(&error).unwrap_or_else(|_| {
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r#"
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{
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"code": "InternalError",
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"message": "JSON encoding of error failed"
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}
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"#
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.into()
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}))
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}
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}
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