1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213
//! Errors for `irc` crate using `failure`.
use std::io::Error as IoError;
use std::sync::mpsc::RecvError;
use thiserror::Error;
use tokio::sync::mpsc::error::{SendError, TrySendError};
#[cfg(feature = "tls-rust")]
use tokio_rustls::rustls::client::InvalidDnsNameError;
use crate::proto::error::{MessageParseError, ProtocolError};
/// A specialized `Result` type for the `irc` crate.
pub type Result<T, E = Error> = std::result::Result<T, E>;
/// The main crate-wide error type.
#[derive(Debug, Error)]
pub enum Error {
/// An internal I/O error.
#[error("an io error occurred")]
Io(
#[source]
#[from]
IoError,
),
/// An internal proxy error.
#[cfg(feature = "proxy")]
#[error("a proxy error occurred")]
Proxy(#[from] tokio_socks::Error),
/// An internal TLS error.
#[cfg(all(feature = "tls-native", not(feature = "tls-rust")))]
#[error("a TLS error occurred: {0}")]
Tls(
#[source]
#[from]
native_tls::Error,
),
/// An internal TLS error.
#[cfg(feature = "tls-rust")]
#[error("a TLS error occurred")]
Tls(
#[source]
#[from]
tokio_rustls::rustls::Error,
),
/// An invalid DNS name was specified.
#[cfg(feature = "tls-rust")]
#[error("invalid DNS name")]
InvalidDnsNameError(
#[source]
#[from]
InvalidDnsNameError,
),
/// An internal synchronous channel closed.
#[error("a sync channel closed")]
SyncChannelClosed(
#[source]
#[from]
RecvError,
),
/// An internal asynchronous channel closed.
#[error("an async channel closed")]
AsyncChannelClosed,
/// An internal oneshot channel closed.
#[error("a oneshot channel closed")]
OneShotCanceled,
/// Error for invalid configurations.
#[error("invalid config: {}", path)]
InvalidConfig {
/// The path to the configuration, or "<none>" if none specified.
path: String,
/// The detailed configuration error.
#[source]
cause: ConfigError,
},
/// Error for invalid messages.
#[error("invalid message: {}", string)]
InvalidMessage {
/// The string that failed to parse.
string: String,
/// The detailed message parsing error.
#[source]
cause: MessageParseError,
},
/// Mutex for a logged transport was poisoned making the log inaccessible.
#[error("mutex for a logged transport was poisoned")]
PoisonedLog,
/// Ping timed out due to no response.
#[error("connection reset: no ping response")]
PingTimeout,
/// Failed to lookup an unknown codec.
#[error("unknown codec: {}", codec)]
UnknownCodec {
/// The attempted codec.
codec: String,
},
/// Failed to encode or decode something with the given codec.
#[error("codec {} failed: {}", codec, data)]
CodecFailed {
/// The canonical codec name.
codec: &'static str,
/// The data that failed to encode or decode.
data: String,
},
/// All specified nicknames were in use or unusable.
#[error("none of the specified nicknames were usable")]
NoUsableNick,
/// Stream has already been configured.
#[error("stream has already been configured")]
StreamAlreadyConfigured,
}
/// Errors that occur with configurations.
#[derive(Debug, Error)]
pub enum ConfigError {
/// Failed to parse as TOML.
#[cfg(feature = "toml_config")]
#[error("invalid toml")]
InvalidToml(#[source] TomlError),
/// Failed to parse as JSON.
#[cfg(feature = "json_config")]
#[error("invalid json")]
InvalidJson(#[source] serde_json::Error),
/// Failed to parse as YAML.
#[cfg(feature = "yaml_config")]
#[error("invalid yaml")]
InvalidYaml(#[source] serde_yaml::Error),
/// Failed to parse the given format because it was disabled at compile-time.
#[error("config format disabled: {}", format)]
ConfigFormatDisabled {
/// The disabled file format.
format: &'static str,
},
/// Could not identify the given file format.
#[error("config format unknown: {}", format)]
UnknownConfigFormat {
/// The unknown file extension.
format: String,
},
/// File was missing an extension to identify file format.
#[error("missing format extension")]
MissingExtension,
/// Configuration does not specify a nickname.
#[error("nickname not specified")]
NicknameNotSpecified,
/// Configuration does not specify a server.
#[error("server not specified")]
ServerNotSpecified,
/// The specified file could not be read.
#[error("could not read file {}", file)]
FileMissing {
/// The supposed location of the file.
file: String,
},
}
/// A wrapper that combines toml's serialization and deserialization errors.
#[cfg(feature = "toml_config")]
#[derive(Debug, Error)]
pub enum TomlError {
/// A TOML deserialization error.
#[error("deserialization failed")]
Read(#[source] toml::de::Error),
/// A TOML serialization error.
#[error("serialization failed")]
Write(#[source] toml::ser::Error),
}
impl From<ProtocolError> for Error {
fn from(e: ProtocolError) -> Error {
match e {
ProtocolError::Io(e) => Error::Io(e),
ProtocolError::InvalidMessage { string, cause } => {
Error::InvalidMessage { string, cause }
}
}
}
}
impl<T> From<SendError<T>> for Error {
fn from(_: SendError<T>) -> Error {
Error::AsyncChannelClosed
}
}
impl<T> From<TrySendError<T>> for Error {
fn from(_: TrySendError<T>) -> Error {
Error::AsyncChannelClosed
}
}