frostfs-contract/proxy/proxy_contract.go
Pavel Karpy 23d9799e51 [#185] *: Use neo-go's interop constants instead of local
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2021-12-02 13:09:50 +03:00

75 lines
1.9 KiB
Go

package proxy
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/native/neo"
"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 (
netmapContractKey = "netmapScriptHash"
)
// OnNEP17Payment is a callback for NEP-17 compatible native GAS contract.
func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
caller := runtime.GetCallingScriptHash()
if !common.BytesEqual(caller, []byte(gas.Hash)) {
panic("proxy contract accepts GAS only")
}
}
func _deploy(data interface{}, isUpdate bool) {
if isUpdate {
return
}
args := data.(struct {
addrNetmap interop.Hash160
})
ctx := storage.GetContext()
if len(args.addrNetmap) != interop.Hash160Len {
panic("incorrect length of contract script hash")
}
storage.Put(ctx, netmapContractKey, args.addrNetmap)
runtime.Log("proxy contract initialized")
}
// Update method updates contract source code and manifest. Can be invoked
// only by committee.
func Update(script []byte, manifest []byte, data interface{}) {
if !common.HasUpdateAccess() {
panic("only committee can update contract")
}
contract.Call(interop.Hash160(management.Hash), "update",
contract.All, script, manifest, common.AppendVersion(data))
runtime.Log("proxy contract updated")
}
// Verify method returns true if transaction contains valid multi signature of
// Alphabet nodes of the Inner Ring.
func Verify() bool {
alphabet := neo.GetCommittee()
sig := common.Multiaddress(alphabet, false)
if !runtime.CheckWitness(sig) {
sig = common.Multiaddress(alphabet, true)
return runtime.CheckWitness(sig)
}
return true
}
// Version returns version of the contract.
func Version() int {
return common.Version
}