forked from OpenAtomFoundation/xupercore
/
address.go
173 lines (146 loc) · 5 KB
/
address.go
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package evm
import (
"fmt"
"strings"
"github.com/btcsuite/btcutil/base58"
"github.com/hyperledger/burrow/binary"
"github.com/hyperledger/burrow/crypto"
"github.com/superconsensus/matrixcore/kernel/contract"
"github.com/superconsensus/matrixcore/kernel/permission/acl/utils"
"github.com/superconsensus/matrixcore/lib/crypto/hash"
)
const (
evmAddressFiller = "-"
contractNamePrefixs = "1111"
contractAccountPrefixs = "1112"
xchainAddrType = "xchain"
contractNameType = "contract-name"
contractAccountType = "contract-account"
)
// transfer xchain address to evm address
func XchainToEVMAddress(addr string) (crypto.Address, error) {
rawAddr := base58.Decode(addr)
if len(rawAddr) < 21 {
return crypto.ZeroAddress, fmt.Errorf("%s is not a valid address", addr)
}
ripemd160Hash := rawAddr[1:21]
return crypto.AddressFromBytes(ripemd160Hash)
}
// transfer evm address to xchain address
func EVMAddressToXchain(evmAddress crypto.Address) (string, error) {
addrType := 1
nVersion := uint8(addrType)
bufVersion := []byte{byte(nVersion)}
outputRipemd160 := evmAddress.Bytes()
strSlice := make([]byte, len(bufVersion)+len(outputRipemd160))
copy(strSlice, bufVersion)
copy(strSlice[len(bufVersion):], outputRipemd160)
checkCode := hash.DoubleSha256(strSlice)
simpleCheckCode := checkCode[:4]
slice := make([]byte, len(strSlice)+len(simpleCheckCode))
copy(slice, strSlice)
copy(slice[len(strSlice):], simpleCheckCode)
return base58.Encode(slice), nil
}
// transfer contract name to evm address
func ContractNameToEVMAddress(contractName string) (crypto.Address, error) {
contractNameLength := len(contractName)
var prefixStr string
for i := 0; i < binary.Word160Length-contractNameLength-utils.GetContractNameMinSize(); i++ {
prefixStr += evmAddressFiller
}
contractName = prefixStr + contractName
contractName = contractNamePrefixs + contractName
return crypto.AddressFromBytes([]byte(contractName))
}
// transfer evm address to contract name
func EVMAddressToContractName(evmAddr crypto.Address) (string, error) {
contractNameWithPrefix := evmAddr.Bytes()
contractNameStrWithPrefix := string(contractNameWithPrefix)
prefixIndex := strings.LastIndex(contractNameStrWithPrefix, evmAddressFiller)
if prefixIndex == -1 {
return contractNameStrWithPrefix[4:], nil
}
return contractNameStrWithPrefix[prefixIndex+1:], nil
}
// transfer contract account to evm address
func ContractAccountToEVMAddress(contractAccount string) (crypto.Address, error) {
contractAccountValid := contractAccount[2:18]
contractAccountValid = contractAccountPrefixs + contractAccountValid
return crypto.AddressFromBytes([]byte(contractAccountValid))
}
// transfer evm address to contract account
func EVMAddressToContractAccount(evmAddr crypto.Address) (string, error) {
contractNameWithPrefix := evmAddr.Bytes()
contractNameStrWithPrefix := string(contractNameWithPrefix)
return utils.GetAccountPrefix() + contractNameStrWithPrefix[4:] + "@xuper", nil
}
// determine whether it is a contract account
func DetermineContractAccount(account string) bool {
if utils.IsAccount(account) != 1 {
return false
}
//return strings.Index(account, "@xuper") != -1
return strings.Index(account, "@") == 18
}
// determine whether it is a contract name
func DetermineContractName(contractName string) error {
return contract.ValidContractName(contractName)
}
// determine whether it is a contract name
func DetermineContractNameFromEVM(evmAddr crypto.Address) (string, error) {
var addr string
var err error
evmAddrWithPrefix := evmAddr.Bytes()
evmAddrStrWithPrefix := string(evmAddrWithPrefix)
if evmAddrStrWithPrefix[0:4] != contractNamePrefixs {
return "", fmt.Errorf("not a valid contract name from evm")
} else {
addr, err = EVMAddressToContractName(evmAddr)
}
if err != nil {
return "", err
}
return addr, nil
}
// determine an EVM address
func DetermineEVMAddress(evmAddr crypto.Address) (string, string, error) {
evmAddrWithPrefix := evmAddr.Bytes()
evmAddrStrWithPrefix := string(evmAddrWithPrefix)
var addr, addrType string
var err error
if evmAddrStrWithPrefix[0:4] == contractAccountPrefixs {
addr, err = EVMAddressToContractAccount(evmAddr)
addrType = contractAccountType
} else if evmAddrStrWithPrefix[0:4] == contractNamePrefixs {
addr, err = EVMAddressToContractName(evmAddr)
addrType = contractNameType
} else {
addr, err = EVMAddressToXchain(evmAddr)
addrType = xchainAddrType
}
if err != nil {
return "", "", err
}
return addr, addrType, nil
}
// determine an xchain address
func DetermineXchainAddress(xAddr string) (string, string, error) {
var addr crypto.Address
var addrType string
var err error
if DetermineContractAccount(xAddr) {
addr, err = ContractAccountToEVMAddress(xAddr)
addrType = contractAccountType
} else if DetermineContractName(xAddr) == nil {
addr, err = ContractNameToEVMAddress(xAddr)
addrType = contractNameType
} else {
addr, err = XchainToEVMAddress(xAddr)
addrType = xchainAddrType
}
if err != nil {
return "", "", err
}
return addr.String(), addrType, nil
}