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69 lines
2.5 KiB
69 lines
2.5 KiB
6 years ago
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// Copyright 2017 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package accounts
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import (
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"errors"
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"fmt"
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)
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// ErrUnknownAccount is returned for any requested operation for which no backend
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// provides the specified account.
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var ErrUnknownAccount = errors.New("unknown account")
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// ErrUnknownWallet is returned for any requested operation for which no backend
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// provides the specified wallet.
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var ErrUnknownWallet = errors.New("unknown wallet")
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// ErrNotSupported is returned when an operation is requested from an account
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// backend that it does not support.
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var ErrNotSupported = errors.New("not supported")
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// ErrInvalidPassphrase is returned when a decryption operation receives a bad
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// passphrase.
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var ErrInvalidPassphrase = errors.New("invalid passphrase")
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// ErrWalletAlreadyOpen is returned if a wallet is attempted to be opened the
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// second time.
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var ErrWalletAlreadyOpen = errors.New("wallet already open")
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// ErrWalletClosed is returned if a wallet is attempted to be opened the
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// secodn time.
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var ErrWalletClosed = errors.New("wallet closed")
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// AuthNeededError is returned by backends for signing requests where the user
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// is required to provide further authentication before signing can succeed.
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//
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// This usually means either that a password needs to be supplied, or perhaps a
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// one time PIN code displayed by some hardware device.
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type AuthNeededError struct {
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Needed string // Extra authentication the user needs to provide
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}
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// NewAuthNeededError creates a new authentication error with the extra details
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// about the needed fields set.
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func NewAuthNeededError(needed string) error {
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return &AuthNeededError{
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Needed: needed,
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}
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}
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// Error implements the standard error interface.
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func (err *AuthNeededError) Error() string {
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return fmt.Sprintf("authentication needed: %s", err.Needed)
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}
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