[#74] processing: Add processing contract

Processing contract deployed in main chain and processes
multi signature invocations of NeoFS contract by
verifying multi signature and paying for it.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
This commit is contained in:
Alex Vanin 2021-04-20 17:40:18 +03:00 committed by Alex Vanin
parent e850d4fc78
commit 4c932ae930
3 changed files with 72 additions and 1 deletions

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@ -10,7 +10,7 @@ sidechain: alphabet morph
alphabet_sc = alphabet
morph_sc = audit balance container neofsid netmap proxy reputation
mainnet_sc = neofs
mainnet_sc = neofs processing
define sc_template
$(2)$(1)/$(1)_contract.nef: $(2)$(1)/$(1)_contract.go

2
processing/config.yml Normal file
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@ -0,0 +1,2 @@
name: "NeoFS Multi Signature Processing"
safemethods: ["verify", "version"]

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@ -0,0 +1,69 @@
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 Init(owner, addrNeoFS interop.Hash160) {
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) bool {
ctx := storage.GetReadOnlyContext()
if !common.HasUpdateAccess(ctx) {
runtime.Log("only owner can update contract")
return false
}
management.Update(script, manifest)
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
}