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operation.go
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operation.go
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/*
* Copyright (C) 2018 The DNA Authors
* This file is part of The DNA library.
*
* The DNA 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 DNA 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 DNA. If not, see <http://www.gnu.org/licenses/>.
*/
package utils
import (
"github.com/dnaproject2/DNA/common"
"github.com/dnaproject2/DNA/errors"
"github.com/dnaproject2/DNA/smartcontract/event"
"github.com/dnaproject2/DNA/smartcontract/service/native"
)
func AddCommonEvent(native *native.NativeService, contract common.Address, name string, params interface{}) {
native.Notifications = append(native.Notifications,
&event.NotifyEventInfo{
ContractAddress: contract,
States: []interface{}{name, params},
})
}
func ConcatKey(contract common.Address, args ...[]byte) []byte {
temp := contract[:]
for _, arg := range args {
temp = append(temp, arg...)
}
return temp
}
func ValidateOwner(native *native.NativeService, address common.Address) error {
if native.ContextRef.CheckWitness(address) == false {
return errors.NewErr("validateOwner, authentication failed!")
}
return nil
}