github.com/MetalBlockchain/subnet-evm@v0.4.9/accounts/errors.go (about) 1 // (c) 2019-2020, Ava Labs, Inc. 2 // 3 // This file is a derived work, based on the go-ethereum library whose original 4 // notices appear below. 5 // 6 // It is distributed under a license compatible with the licensing terms of the 7 // original code from which it is derived. 8 // 9 // Much love to the original authors for their work. 10 // ********** 11 // Copyright 2017 The go-ethereum Authors 12 // This file is part of the go-ethereum library. 13 // 14 // The go-ethereum library is free software: you can redistribute it and/or modify 15 // it under the terms of the GNU Lesser General Public License as published by 16 // the Free Software Foundation, either version 3 of the License, or 17 // (at your option) any later version. 18 // 19 // The go-ethereum library is distributed in the hope that it will be useful, 20 // but WITHOUT ANY WARRANTY; without even the implied warranty of 21 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 22 // GNU Lesser General Public License for more details. 23 // 24 // You should have received a copy of the GNU Lesser General Public License 25 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. 26 27 package accounts 28 29 import ( 30 "errors" 31 "fmt" 32 ) 33 34 // ErrUnknownAccount is returned for any requested operation for which no backend 35 // provides the specified account. 36 var ErrUnknownAccount = errors.New("unknown account") 37 38 // ErrUnknownWallet is returned for any requested operation for which no backend 39 // provides the specified wallet. 40 var ErrUnknownWallet = errors.New("unknown wallet") 41 42 // ErrNotSupported is returned when an operation is requested from an account 43 // backend that it does not support. 44 var ErrNotSupported = errors.New("not supported") 45 46 // ErrInvalidPassphrase is returned when a decryption operation receives a bad 47 // passphrase. 48 var ErrInvalidPassphrase = errors.New("invalid password") 49 50 // ErrWalletAlreadyOpen is returned if a wallet is attempted to be opened the 51 // second time. 52 var ErrWalletAlreadyOpen = errors.New("wallet already open") 53 54 // ErrWalletClosed is returned if a wallet is offline. 55 var ErrWalletClosed = errors.New("wallet closed") 56 57 // AuthNeededError is returned by backends for signing requests where the user 58 // is required to provide further authentication before signing can succeed. 59 // 60 // This usually means either that a password needs to be supplied, or perhaps a 61 // one time PIN code displayed by some hardware device. 62 type AuthNeededError struct { 63 Needed string // Extra authentication the user needs to provide 64 } 65 66 // NewAuthNeededError creates a new authentication error with the extra details 67 // about the needed fields set. 68 func NewAuthNeededError(needed string) error { 69 return &AuthNeededError{ 70 Needed: needed, 71 } 72 } 73 74 // Error implements the standard error interface. 75 func (err *AuthNeededError) Error() string { 76 return fmt.Sprintf("authentication needed: %s", err.Needed) 77 }