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//! Declare an error type for the tor-dirmgr crate.
use thiserror::Error;
/// An error originated by the directory manager code
#[derive(Error, Debug)]
#[non_exhaustive]
pub enum Error {
/// We received a document we didn't want at all.
#[error("unwanted object: {0}")]
Unwanted(&'static str),
/// This DirMgr doesn't support downloads.
#[error("tried to download information on a DirMgr with no download support")]
NoDownloadSupport,
/// A bad argument was provided to some configuration function.
#[error("bad argument: {0}")]
BadArgument(&'static str),
/// We couldn't read something from disk that we should have been
/// able to read.
#[error("corrupt cache: {0}")]
CacheCorruption(&'static str),
/// rusqlite gave us an error.
#[error("sqlite error: {0}")]
SqliteError(#[from] rusqlite::Error),
/// A schema version that says we can't read it.
#[error("unrecognized data storage schema")]
UnrecognizedSchema,
/// An updater no longer has anything to update.
#[error("directory updater has shut down")]
UpdaterShutdown,
/// We couldn't configure the network.
#[error("bad network configuration")]
BadNetworkConfig(&'static str),
/// User requested an operation that required a usable
/// bootstrapped directory, but we didn't have one.
#[error("directory not present or not up-to-date")]
DirectoryNotPresent,
/// Another process has locked the store for writing.
#[error("couldn't get write lock on directory cache")]
CacheIsLocked,
/// A consensus document is signed by an unrecognized authority set.
#[error("authorities on consensus do not match what we expect.")]
UnrecognizedAuthorities,
/// A directory manager has been dropped; background tasks can exit too.
#[error("dirmgr has been dropped; background tasks exiting")]
ManagerDropped,
/// We made a bunch of attempts, but weren't unable to advance the
/// state of a download.
#[error("unable to finish bootstrapping a directory")]
CantAdvanceState,
/// An error emitted by the runtime. The argument is the formatted error of the runtime.
#[error("runtime error: {0}")]
RuntimeError(String),
/// Blob storage error
#[error("storage error: {0}")]
StorageError(String),
/// An error given by the consensus diff crate.
#[error("consdiff error: {0}")]
ConsensusDiffError(#[from] tor_consdiff::Error),
/// A string parsing error.
#[error("string parsing error: {0}")]
StringParsingError(String),
/// An error given by the network document crate.
#[error("netdoc error: {0}")]
NetDocError(#[from] tor_netdoc::Error),
/// An error given by dirclient
#[error("dirclient error: {0}")]
DirClientError(#[from] tor_dirclient::Error),
/// An error given by the checkable crate.
#[error("checkable error: {0}")]
SignatureError(#[from] signature::Error),
/// An IO error occurred while manipulating storage on disk.
#[error("IO error: {0}")]
IOError(#[from] std::io::Error),
}
impl From<std::str::Utf8Error> for Error {
fn from(err: std::str::Utf8Error) -> Self {
Error::StringParsingError(err.to_string())
}
}
impl From<std::string::FromUtf8Error> for Error {
fn from(err: std::string::FromUtf8Error) -> Self {
Error::StringParsingError(err.to_string())
}
}
impl From<hex::FromHexError> for Error {
fn from(err: hex::FromHexError) -> Self {
Error::StringParsingError(err.to_string())
}
}
impl From<futures::task::SpawnError> for Error {
fn from(err: futures::task::SpawnError) -> Self {
Error::RuntimeError(err.to_string())
}
}
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