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// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package libgoal
import (
"fmt"
"github.com/algorand/go-algorand/crypto"
"github.com/algorand/go-algorand/data/transactions"
)
var unencryptedWalletDriver = "sqlite"
// UnencryptedWalletName is the name of the default, unencrypted wallet
var UnencryptedWalletName = []byte("unencrypted-default-wallet")
// SendPaymentFromUnencryptedWallet signs a transaction using the default wallet and returns the resulted transaction id
func (c *Client) SendPaymentFromUnencryptedWallet(from, to string, fee, amount uint64, note []byte) (transactions.Transaction, error) {
wh, err := c.GetUnencryptedWalletHandle()
if err != nil {
return transactions.Transaction{}, err
}
return c.SendPaymentFromWallet(wh, nil, from, to, fee, amount, note, "", 0, 0)
}
// GetUnencryptedWalletHandle returns the unencrypted wallet handle. If there
// is no unencrypted wallet, it creates one first.
// This should never be used outside of tests, because it creates a wallet named
// unencrypted-default-wallet if it doesn't exist.
func (c *Client) GetUnencryptedWalletHandle() ([]byte, error) {
useCacheDir := c.cacheDir != ""
return c.getUnencryptedWalletHandle(useCacheDir)
}
func (c *Client) getUnencryptedWalletHandle(cached bool) ([]byte, error) {
// Determine the default wallet ID
id, err := c.getMaybeCreateUnencryptedWallet()
if err != nil {
return nil, err
}
if cached {
return c.GetWalletHandleTokenCached(id, nil)
}
return c.GetWalletHandleToken(id, nil)
}
func (c *Client) getMaybeCreateUnencryptedWallet() ([]byte, error) {
// Check if the default wallet already exists
defaultWalletID, duplicate, err := c.FindWalletIDByName(UnencryptedWalletName)
if err != nil {
return nil, err
}
if duplicate {
return nil, fmt.Errorf("multiple default unencrypted wallets exist")
}
// Not found -- create it
if defaultWalletID == nil {
kmd, err := c.ensureKmdClient()
if err != nil {
return nil, err
}
resp, err := kmd.CreateWallet(UnencryptedWalletName, unencryptedWalletDriver, nil, crypto.MasterDerivationKey{})
if err != nil {
return nil, err
}
defaultWalletID = []byte(resp.Wallet.ID)
}
return defaultWalletID, nil
}
// UnencryptedMultisigSignTransaction is MultisigSignTransactionWithWallet for the default wallet
func (c *Client) UnencryptedMultisigSignTransaction(utx transactions.Transaction, signerAddr string, partial crypto.MultisigSig) (msig crypto.MultisigSig, err error) {
wh, err := c.GetUnencryptedWalletHandle()
if err != nil {
return
}
return c.MultisigSignTransactionWithWallet(wh, nil, utx, signerAddr, partial)
}
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