garage/src/web/error.rs

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use err_derive::Error;
use hyper::StatusCode;
use garage_util::error::Error as GarageError;
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/// Errors of this crate
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#[derive(Debug, Error)]
pub enum Error {
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/// An error received from the API crate
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#[error(display = "API error: {}", _0)]
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ApiError(#[error(source)] garage_api::Error),
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// Category: internal error
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/// Error internal to garage
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#[error(display = "Internal error: {}", _0)]
InternalError(#[error(source)] GarageError),
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/// The file does not exist
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#[error(display = "Not found")]
NotFound,
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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)]
InvalidUTF8(#[error(source)] std::str::Utf8Error),
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/// The client send a header with invalid value
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#[error(display = "Invalid header value: {}", _0)]
InvalidHeader(#[error(source)] hyper::header::ToStrError),
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/// The client sent a request without host, or with unsupported method
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#[error(display = "Bad request: {}", _0)]
BadRequest(String),
}
impl Error {
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/// Transform errors into http status code
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pub fn http_status_code(&self) -> StatusCode {
match self {
Error::NotFound => StatusCode::NOT_FOUND,
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Error::ApiError(e) => e.http_status_code(),
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Error::InternalError(GarageError::RPC(_)) => StatusCode::SERVICE_UNAVAILABLE,
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Error::InternalError(_) => StatusCode::INTERNAL_SERVER_ERROR,
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_ => StatusCode::BAD_REQUEST,
}
}
}