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//! Declare error type for tor-netdir
use thiserror::Error;
use tor_error::HasKind;
/// An error returned by the network directory code
#[derive(Error, Clone, Debug)]
#[non_exhaustive]
pub enum Error {
/// We don't have enough directory info to build circuits
#[error("Not enough directory information to build circuits")]
NotEnoughInfo,
/// We don't have any directory information.
#[error("No directory information available")]
NoInfo,
/// We have directory information, but it is too expired to use.
#[error("Directory is expired, and we haven't got a new one yet")]
DirExpired,
/// We have directory information, but it is too expired to use.
#[error("Directory is published too far in the future: Your clock is probably wrong")]
DirNotYetValid,
/// We received a consensus document that should be impossible.
#[error("Invalid information from consensus document: {0}")]
InvalidConsensus(&'static str),
}
impl HasKind for Error {
fn kind(&self) -> tor_error::ErrorKind {
use Error as E;
use tor_error::ErrorKind as EK;
match self {
E::DirExpired => EK::DirectoryExpired,
E::DirNotYetValid => EK::ClockSkew,
E::NotEnoughInfo | E::NoInfo => EK::BootstrapRequired,
E::InvalidConsensus(_) => EK::TorProtocolViolation,
}
}
}
/// An error that has occurred while trying to decode a set of externally provided link specifiers
/// into a reasonable [`VerbatimLinkSpecCircTarget`](tor_linkspec::verbatim::VerbatimLinkSpecCircTarget).
#[derive(Error, Clone, Debug)]
#[non_exhaustive]
#[cfg(feature = "hs-common")]
pub enum VerbatimCircTargetDecodeError {
/// We failed to interpret the provided link specs, or didn't find enough detail in them.
#[error("Unable to decode relay information")]
CantDecode(#[from] tor_linkspec::decode::ChanTargetDecodeError),
/// When we went to look up the relay, we found that the identities were not compatible with one another.
#[error("Impossible combination of identities")]
ImpossibleIds(#[source] crate::RelayLookupError),
/// The onion key type was one that we don't support.
#[error("Received an unsupported onion key type")]
UnsupportedOnionKey,
/// An internal error occurred, probably due to a programming mistake.
#[error("Internal error")]
Internal(#[from] tor_error::Bug),
}
/// An error returned when looking up onion service directories.
#[derive(Error, Clone, Debug)]
#[cfg(feature = "hs-common")]
#[non_exhaustive]
pub enum OnionDirLookupError {
/// We tried to look up an onion service directory for a time period that
/// did not correspond to one of our hash rings.
#[error("Tried to look up an onion service directory for an invalid time period.")]
WrongTimePeriod,
}
#[cfg(feature = "hs-common")]
impl HasKind for OnionDirLookupError {
fn kind(&self) -> tor_error::ErrorKind {
use OnionDirLookupError as E;
use tor_error::ErrorKind as EK;
match self {
E::WrongTimePeriod => EK::BadApiUsage,
}
}
}
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