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utils.go
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/
utils.go
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package types
import (
"encoding/hex"
"strings"
"github.com/evmos/ethermint/crypto/ethsecp256k1"
"github.com/cosmos/cosmos-sdk/crypto/keys/ed25519"
cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
"github.com/cosmos/cosmos-sdk/crypto/types/multisig"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
)
const prefix = "uptick"
// IsSupportedKey returns true if the pubkey type is supported by the chain
// (i.e eth_secp256k1, amino multisig, ed25519).
// NOTE: Nested multisigs are not supported.
func IsSupportedKey(pubkey cryptotypes.PubKey) bool {
switch pubkey := pubkey.(type) {
case *ethsecp256k1.PubKey, *ed25519.PubKey:
return true
case multisig.PubKey:
if len(pubkey.GetPubKeys()) == 0 {
return false
}
for _, pk := range pubkey.GetPubKeys() {
switch pk.(type) {
case *ethsecp256k1.PubKey, *ed25519.PubKey:
continue
default:
// Nested multisigs are unsupported
return false
}
}
return true
default:
return false
}
}
// GetUptickAddressFromBech32 returns the sdk.Account address of given address,
// while also changing bech32 human readable prefix (HRP) to the value set on
// the global sdk.Config (eg: `uptick`).
// The function fails if the provided bech32 address is invalid.
func GetUptickAddressFromBech32(address string) (sdk.AccAddress, error) {
bech32Prefix := strings.SplitN(address, "1", 2)[0]
if bech32Prefix == address {
return nil, sdkerrors.Wrapf(sdkerrors.ErrInvalidAddress, "invalid bech32 address: %s", address)
}
addressBz, err := sdk.GetFromBech32(address, bech32Prefix)
if err != nil {
return nil, sdkerrors.Wrapf(sdkerrors.ErrInvalidAddress, "invalid address %s, %s", address, err.Error())
}
// safety check: shouldn't happen
if err := sdk.VerifyAddressFormat(addressBz); err != nil {
return nil, err
}
return sdk.AccAddress(addressBz), nil
}
func ConvertAddressCosmos2Evm(cosmosAddress string) (string, error) {
rawBytes, err := sdk.GetFromBech32(cosmosAddress, prefix)
if err != nil {
return "", err
}
evmAddress := "0x" + hex.EncodeToString(rawBytes)
return evmAddress, nil
}
func ConvertAddressEvm2Cosmos(evmAddress string) (string, error) {
rawBytes, err := hex.DecodeString(evmAddress[2:])
if err != nil {
return "", err
}
cosmosAddress, err := sdk.Bech32ifyAddressBytes(prefix, rawBytes)
if err != nil {
return "", err
}
return cosmosAddress, nil
}