forked from TrueCloudLab/frostfs-contract
edd4864e39
There is no practical cases not to panic at contract update routine. Signed-off-by: Alex Vanin <alexey@nspcc.ru>
81 lines
2.1 KiB
Go
81 lines
2.1 KiB
Go
package proxy
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import (
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"github.com/nspcc-dev/neo-go/pkg/interop"
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"github.com/nspcc-dev/neo-go/pkg/interop/contract"
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"github.com/nspcc-dev/neo-go/pkg/interop/native/gas"
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"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
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"github.com/nspcc-dev/neo-go/pkg/interop/native/neo"
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"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
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"github.com/nspcc-dev/neo-go/pkg/interop/storage"
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"github.com/nspcc-dev/neofs-contract/common"
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)
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const (
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netmapContractKey = "netmapScriptHash"
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)
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// OnNEP17Payment is a callback for NEP-17 compatible native GAS contract.
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func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
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caller := runtime.GetCallingScriptHash()
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if !common.BytesEqual(caller, []byte(gas.Hash)) {
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panic("onNEP17Payment: proxy contract accepts GAS only")
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}
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}
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func _deploy(data interface{}, isUpdate bool) {
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if isUpdate {
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return
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}
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args := data.([]interface{})
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owner := args[0].(interop.Hash160)
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addrNetmap := args[1].(interop.Hash160)
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ctx := storage.GetContext()
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if !common.HasUpdateAccess(ctx) {
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panic("only owner can reinitialize contract")
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}
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if len(addrNetmap) != 20 {
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panic("init: incorrect length of contract script hash")
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}
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storage.Put(ctx, common.OwnerKey, owner)
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storage.Put(ctx, netmapContractKey, addrNetmap)
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runtime.Log("proxy contract initialized")
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}
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// Update method updates contract source code and manifest. Can be invoked
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// only by contract owner.
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func Update(script []byte, manifest []byte, data interface{}) {
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ctx := storage.GetReadOnlyContext()
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if !common.HasUpdateAccess(ctx) {
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panic("only owner can update contract")
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}
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contract.Call(interop.Hash160(management.Hash), "update", contract.All, script, manifest, data)
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runtime.Log("proxy contract updated")
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}
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// Verify method returns true if transaction contains valid multi signature of
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// Alphabet nodes of the Inner Ring.
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func Verify() bool {
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alphabet := neo.GetCommittee()
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sig := common.Multiaddress(alphabet, false)
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if !runtime.CheckWitness(sig) {
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sig = common.Multiaddress(alphabet, true)
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return runtime.CheckWitness(sig)
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}
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return true
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}
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// Version returns version of the contract.
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func Version() int {
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return common.Version
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}
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