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

// This file is part of Substrate.

// Copyright (C) 2017-2021 Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.

//! Initialization errors.

use sp_core::crypto;

/// Result type alias for the CLI.
pub type Result<T> = std::result::Result<T, Error>;

/// Error type for the CLI.
#[derive(Debug, thiserror::Error)]
#[allow(missing_docs)]
pub enum Error {
	#[error(transparent)]
	Io(#[from] std::io::Error),

	#[error(transparent)]
	Cli(#[from] structopt::clap::Error),

	#[error(transparent)]
	Service(#[from] sc_service::Error),

	#[error(transparent)]
	Client(#[from] sp_blockchain::Error),

	#[error(transparent)]
	Codec(#[from] parity_scale_codec::Error),

	#[error("Invalid input: {0}")]
	Input(String),

	#[error("Invalid listen multiaddress")]
	InvalidListenMultiaddress,

	#[error("Invalid URI; expecting either a secret URI or a public URI.")]
	InvalidUri(crypto::PublicError),

	#[error("Signature has an invalid length. Read {read} bytes, expected {expected} bytes")]
	SignatureInvalidLength {
		/// Amount of signature bytes read.
		read: usize,
		/// Expected number of signature bytes.
		expected: usize,
	},

	#[error("Unknown key type, must be a known 4-character sequence")]
	KeyTypeInvalid,

	#[error("Signature verification failed")]
	SignatureInvalid,

	#[error("Key store operation failed")]
	KeyStoreOperation,

	#[error("Key storage issue encountered")]
	KeyStorage(#[from] sc_keystore::Error),

	#[error("Invalid hexadecimal string data")]
	HexDataConversion(#[from] hex::FromHexError),

	/// Application specific error chain sequence forwarder.
	#[error(transparent)]
	Application(#[from] Box<dyn std::error::Error + Send + Sync + 'static>),

	#[error(transparent)]
	GlobalLoggerError(#[from] sc_tracing::logging::Error),
}

impl std::convert::From<&str> for Error {
	fn from(s: &str) -> Error {
		Error::Input(s.to_string())
	}
}

impl std::convert::From<String> for Error {
	fn from(s: String) -> Error {
		Error::Input(s)
	}
}

impl std::convert::From<crypto::PublicError> for Error {
	fn from(e: crypto::PublicError) -> Error {
		Error::InvalidUri(e)
	}
}