frostfs-contract/proxy/proxy_contract.go
Pavel Karpy 8af80e67aa [#37] Use readonly context
Delete initializing of R/W context in `init()`
and start using readonly storage context in
methods where it is possible.

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2021-03-12 10:36:15 +03:00

65 lines
1.5 KiB
Go

package proxycontract
import (
"github.com/nspcc-dev/neo-go/pkg/interop"
"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
netmapContractKey = "netmapScriptHash"
)
func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
caller := runtime.GetCallingScriptHash()
if !common.BytesEqual(caller, []byte(gas.Hash)) {
panic("onNEP17Payment: alphabet contract accepts GAS only")
}
}
func Init(owner, addrNetmap interop.Hash160) {
ctx := storage.GetContext()
if !common.HasUpdateAccess(ctx) {
panic("only owner can reinitialize contract")
}
if len(addrNetmap) != 20 {
panic("init: incorrect length of contract script hash")
}
storage.Put(ctx, common.OwnerKey, owner)
storage.Put(ctx, netmapContractKey, addrNetmap)
runtime.Log("proxy 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("proxy contract updated")
return true
}
func Verify() bool {
ctx := storage.GetReadOnlyContext()
sig := common.InnerRingMultiAddressViaStorage(ctx, netmapContractKey)
return runtime.CheckWitness(sig)
}
func Version() int {
return version
}