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convertaddress.go
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convertaddress.go
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/*
* Copyright (C) 2018 The ZeepinChain Authors
* This file is part of The ZeepinChain library.
*
* The ZeepinChain is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The ZeepinChain 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with The ZeepinChain. If not, see <http://www.gnu.org/licenses/>.
*/
package main
import (
"errors"
"fmt"
"math/big"
"github.com/zeepin/ZeepinChain/common"
base58 "github.com/itchyny/base58-go"
)
const ADDR_LEN = 20
var ADDRESS_EMPTY = common.Address{}
var ADDR_PREFIX = byte(23)
func main() {
fromAdrr, _ := ConvertAddressFromBase58("AUBek6JUBn5wMbpitRi5agfgYXiXBNFa5K")
fmt.Println(fromAdrr.ToBase58())
}
// AddressFromBase58 returns Address from encoded base58 string
func ConvertAddressFromBase58(encoded string) (common.Address, error) {
if encoded == "" {
return ADDRESS_EMPTY, fmt.Errorf("invalid address")
}
decoded, err := base58.BitcoinEncoding.Decode([]byte(encoded))
if err != nil {
return ADDRESS_EMPTY, err
}
x, ok := new(big.Int).SetString(string(decoded), 10)
if !ok {
return ADDRESS_EMPTY, fmt.Errorf("invalid address")
}
buf := x.Bytes()
if len(buf) != 1+ADDR_LEN+4 || buf[0] != byte(ADDR_PREFIX) {
return ADDRESS_EMPTY, errors.New("wrong encoded address")
}
ph, err := common.AddressParseFromBytes(buf[1:21])
if err != nil {
return ADDRESS_EMPTY, err
}
addr := ph.ToBase58()
fmt.Println(addr)
return ph, nil
}