frostfs-contract/processing/processing_contract.go
Alex Vanin af21f33657 [#100] *: Use full scope in migration
As soon as migration required changes in memory, we
need bigger scope. Otherwise in requires two step migration
which is unpleasant and annoying.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2021-07-01 14:13:36 +03:00

77 lines
1.9 KiB
Go

package processingcontract
import (
"github.com/nspcc-dev/neo-go/pkg/interop"
"github.com/nspcc-dev/neo-go/pkg/interop/contract"
"github.com/nspcc-dev/neo-go/pkg/interop/native/gas"
"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
"github.com/nspcc-dev/neo-go/pkg/interop/storage"
"github.com/nspcc-dev/neofs-contract/common"
)
const (
version = 1
neofsContractKey = "neofsScriptHash"
multiaddrMethod = "alphabetAddress"
)
func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
caller := runtime.GetCallingScriptHash()
if !common.BytesEqual(caller, []byte(gas.Hash)) {
panic("onNEP17Payment: processing contract accepts GAS only")
}
}
func _deploy(data interface{}, isUpdate bool) {
if isUpdate {
return
}
arr := data.([]interop.Hash160)
owner := arr[0]
addrNeoFS := arr[1]
ctx := storage.GetContext()
if !common.HasUpdateAccess(ctx) {
panic("only owner can reinitialize contract")
}
if len(addrNeoFS) != 20 {
panic("init: incorrect length of contract script hash")
}
storage.Put(ctx, common.OwnerKey, owner)
storage.Put(ctx, neofsContractKey, addrNeoFS)
runtime.Log("processing contract initialized")
}
func Migrate(script []byte, manifest []byte, data interface{}) bool {
ctx := storage.GetReadOnlyContext()
if !common.HasUpdateAccess(ctx) {
runtime.Log("only owner can update contract")
return false
}
contract.Call(interop.Hash160(management.Hash), "update", contract.All, script, manifest, data)
runtime.Log("processing contract updated")
return true
}
func Verify() bool {
ctx := storage.GetContext()
neofsContractAddr := storage.Get(ctx, neofsContractKey).(interop.Hash160)
multiaddr := contract.Call(neofsContractAddr, multiaddrMethod, contract.ReadOnly).(interop.Hash160)
return runtime.CheckWitness(multiaddr)
}
func Version() int {
return version
}