forked from hashgraph/hedera-sdk-go
/
delegatable_contract_id.go
222 lines (194 loc) · 6.22 KB
/
delegatable_contract_id.go
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package hedera
/*-
*
* Hedera Go SDK
*
* Copyright (C) 2020 - 2022 Hedera Hashgraph, LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
import (
"encoding/hex"
"fmt"
"github.com/hashgraph/hedera-protobufs-go/services"
"github.com/pkg/errors"
protobuf "google.golang.org/protobuf/proto"
)
// ContractID is the ID for a Hedera smart contract
type DelegatableContractID struct {
Shard uint64
Realm uint64
Contract uint64
EvmAddress []byte
checksum *string
}
// DelegatableContractIDFromString constructs a DelegatableContractID from a string formatted as `Shard.Realm.Contract` (for example "0.0.3")
func DelegatableContractIDFromString(data string) (DelegatableContractID, error) {
shard, realm, num, checksum, evm, err := _ContractIDFromString(data)
if err != nil {
return DelegatableContractID{}, err
}
if num == -1 {
return DelegatableContractID{
Shard: uint64(shard),
Realm: uint64(realm),
Contract: 0,
EvmAddress: evm,
checksum: checksum,
}, nil
}
return DelegatableContractID{
Shard: uint64(shard),
Realm: uint64(realm),
Contract: uint64(num),
EvmAddress: []byte{},
checksum: checksum,
}, nil
}
func (id *DelegatableContractID) ValidateChecksum(client *Client) error {
if !id._IsZero() && client != nil && client.network.ledgerID != nil {
var tempChecksum _ParseAddressResult
var err error
if client.network.ledgerID != nil {
tempChecksum, err = _ChecksumParseAddress(client.GetLedgerID(), fmt.Sprintf("%d.%d.%d", id.Shard, id.Realm, id.Contract))
}
if err != nil {
return err
}
err = _ChecksumVerify(tempChecksum.status)
if err != nil {
return err
}
if id.checksum == nil {
return errChecksumMissing
}
if tempChecksum.correctChecksum != *id.checksum {
temp, _ := client.network.ledgerID.ToNetworkName()
return errors.New(fmt.Sprintf("network mismatch or wrong checksum given, given checksum: %s, correct checksum %s, network: %s",
*id.checksum,
tempChecksum.correctChecksum,
temp))
}
}
return nil
}
func DelegatableContractIDFromEvmAddress(shard uint64, realm uint64, evmAddress string) (DelegatableContractID, error) {
temp, err := hex.DecodeString(evmAddress)
if err != nil {
return DelegatableContractID{}, err
}
return DelegatableContractID{
Shard: shard,
Realm: realm,
Contract: 0,
EvmAddress: temp,
checksum: nil,
}, nil
}
// DelegatableContractIDFromSolidityAddress constructs a DelegatableContractID from a string representation of a _Solidity address
// Does not populate DelegatableContractID.EvmAddress
func DelegatableContractIDFromSolidityAddress(s string) (DelegatableContractID, error) {
shard, realm, contract, err := _IdFromSolidityAddress(s)
if err != nil {
return DelegatableContractID{}, err
}
return DelegatableContractID{
Shard: shard,
Realm: realm,
Contract: contract,
}, nil
}
// String returns the string representation of a DelegatableContractID formatted as `Shard.Realm.Contract` (for example "0.0.3")
func (id DelegatableContractID) String() string {
if len(id.EvmAddress) > 0 {
temp := hex.EncodeToString(id.EvmAddress)
return fmt.Sprintf("%d.%d.%s", id.Shard, id.Realm, temp)
}
return fmt.Sprintf("%d.%d.%d", id.Shard, id.Realm, id.Contract)
}
func (id DelegatableContractID) ToStringWithChecksum(client Client) (string, error) {
if id.EvmAddress != nil {
return "", errors.New("EvmAddress doesn't support checksums")
}
if client.GetNetworkName() == nil && client.GetLedgerID() == nil {
return "", errNetworkNameMissing
}
var checksum _ParseAddressResult
var err error
if client.network.ledgerID != nil {
checksum, err = _ChecksumParseAddress(client.GetLedgerID(), fmt.Sprintf("%d.%d.%d", id.Shard, id.Realm, id.Contract))
}
if err != nil {
return "", err
}
return fmt.Sprintf("%d.%d.%d-%s", id.Shard, id.Realm, id.Contract, checksum.correctChecksum), nil
}
// ToSolidityAddress returns the string representation of the DelegatableContractID as a _Solidity address.
func (id DelegatableContractID) ToSolidityAddress() string {
return _IdToSolidityAddress(id.Shard, id.Realm, id.Contract)
}
func (id DelegatableContractID) _ToProtobuf() *services.ContractID {
resultID := services.ContractID{
ShardNum: int64(id.Shard),
RealmNum: int64(id.Realm),
}
if id.EvmAddress != nil {
resultID.Contract = &services.ContractID_EvmAddress{EvmAddress: id.EvmAddress}
return &resultID
}
resultID.Contract = &services.ContractID_ContractNum{ContractNum: int64(id.Contract)}
return &resultID
}
func _DelegatableContractIDFromProtobuf(contractID *services.ContractID) *DelegatableContractID {
if contractID == nil {
return nil
}
resultID := DelegatableContractID{
Shard: uint64(contractID.ShardNum),
Realm: uint64(contractID.RealmNum),
}
switch id := contractID.Contract.(type) {
case *services.ContractID_ContractNum:
resultID.Contract = uint64(id.ContractNum)
resultID.EvmAddress = nil
return &resultID
case *services.ContractID_EvmAddress:
resultID.EvmAddress = id.EvmAddress
resultID.Contract = 0
return &resultID
default:
return &resultID
}
}
func (id DelegatableContractID) _IsZero() bool {
return id.Shard == 0 && id.Realm == 0 && id.Contract == 0
}
func (id DelegatableContractID) _ToProtoKey() *services.Key {
return &services.Key{Key: &services.Key_ContractID{ContractID: id._ToProtobuf()}}
}
func (id DelegatableContractID) ToBytes() []byte {
data, err := protobuf.Marshal(id._ToProtobuf())
if err != nil {
return make([]byte, 0)
}
return data
}
func DelegatableContractIDFromBytes(data []byte) (DelegatableContractID, error) {
pb := services.ContractID{}
err := protobuf.Unmarshal(data, &pb)
if err != nil {
return DelegatableContractID{}, err
}
return *_DelegatableContractIDFromProtobuf(&pb), nil
}