ba5bf33f19
* proto, evm: use string for address and hash protobuf message fields * fix tests * msg test
37 lines
1.1 KiB
Go
37 lines
1.1 KiB
Go
package types
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import (
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"bytes"
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ethcmn "github.com/ethereum/go-ethereum/common"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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)
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// IsEmptyHash returns true if the hash corresponds to an empty ethereum hex hash.
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func IsEmptyHash(hash string) bool {
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return bytes.Equal(ethcmn.HexToHash(hash).Bytes(), ethcmn.Hash{}.Bytes())
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}
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// IsZeroAddress returns true if the address corresponds to an empty ethereum hex address.
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func IsZeroAddress(address string) bool {
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return bytes.Equal(ethcmn.HexToAddress(address).Bytes(), ethcmn.Address{}.Bytes())
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}
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// ValidateAddress returns an error if the provided string is either not a hex formatted string address
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// the it matches the zero address 0x00000000000000000000.
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func ValidateAddress(address string) error {
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if !ethcmn.IsHexAddress(address) {
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return sdkerrors.Wrapf(
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sdkerrors.ErrInvalidAddress, "address '%s' is not a valid ethereum hex address",
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address,
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)
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}
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if IsZeroAddress(address) {
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return sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, "provided address cannot be the zero address")
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}
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return nil
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}
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