frostfs-contract/frostfsid/frostfsid_contract.go

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package frostfsid
import (
"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
"github.com/nspcc-dev/neo-go/pkg/interop"
"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
"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"
)
type (
UserInfo struct {
Keys [][]byte
}
)
const (
ownerSize = 1 + interop.Hash160Len + 4
)
const (
netmapContractKey = "netmapScriptHash"
containerContractKey = "containerScriptHash"
ownerKeysPrefix = 'o'
)
func _deploy(data interface{}, isUpdate bool) {
ctx := storage.GetContext()
if isUpdate {
args := data.([]interface{})
common.CheckVersion(args[len(args)-1].(int))
return
}
args := data.(struct {
addrNetmap interop.Hash160
addrContainer interop.Hash160
})
if len(args.addrNetmap) != interop.Hash160Len || len(args.addrContainer) != interop.Hash160Len {
panic("incorrect length of contract script hash")
}
storage.Put(ctx, netmapContractKey, args.addrNetmap)
storage.Put(ctx, containerContractKey, args.addrContainer)
runtime.Log("frostfsid contract initialized")
}
// Update method updates contract source code and manifest. It can be invoked
// only by committee.
func Update(script []byte, manifest []byte, data interface{}) {
if !common.HasUpdateAccess() {
panic("only committee can update contract")
}
management.UpdateWithData(script, manifest, common.AppendVersion(data))
runtime.Log("frostfsid contract updated")
}
// AddKey binds a list of the provided public keys to the OwnerID. It can be invoked only by
// Alphabet nodes.
//
// This method panics if the OwnerID is not an ownerSize byte or the public key is not 33 byte long.
// If the key is already bound, the method ignores it.
func AddKey(owner []byte, keys []interop.PublicKey) {
// V2 format
if len(owner) != ownerSize {
panic("incorrect owner")
}
for i := range keys {
if len(keys[i]) != interop.PublicKeyCompressedLen {
panic("incorrect public key")
}
}
ctx := storage.GetContext()
common.CheckAlphabetWitness()
ownerKey := append([]byte{ownerKeysPrefix}, owner...)
for i := range keys {
stKey := append(ownerKey, keys[i]...)
storage.Put(ctx, stKey, []byte{1})
}
runtime.Log("key bound to the owner")
}
// RemoveKey unbinds the provided public keys from the OwnerID. It can be invoked only by
// Alphabet nodes.
//
// This method panics if the OwnerID is not an ownerSize byte or the public key is not 33 byte long.
// If the key is already unbound, the method ignores it.
func RemoveKey(owner []byte, keys []interop.PublicKey) {
// V2 format
if len(owner) != ownerSize {
panic("incorrect owner")
}
for i := range keys {
if len(keys[i]) != interop.PublicKeyCompressedLen {
panic("incorrect public key")
}
}
ctx := storage.GetContext()
multiaddr := common.AlphabetAddress()
if !runtime.CheckWitness(multiaddr) {
panic("invocation from non inner ring node")
}
ownerKey := append([]byte{ownerKeysPrefix}, owner...)
for i := range keys {
stKey := append(ownerKey, keys[i]...)
storage.Delete(ctx, stKey)
}
}
// Key method returns a list of 33-byte public keys bound with the OwnerID.
//
// This method panics if the owner is not ownerSize byte long.
func Key(owner []byte) [][]byte {
// V2 format
if len(owner) != ownerSize {
panic("incorrect owner")
}
ctx := storage.GetReadOnlyContext()
ownerKey := append([]byte{ownerKeysPrefix}, owner...)
info := getUserInfo(ctx, ownerKey)
return info.Keys
}
// Version returns the version of the contract.
func Version() int {
return common.Version
}
func getUserInfo(ctx storage.Context, key interface{}) UserInfo {
it := storage.Find(ctx, key, storage.KeysOnly|storage.RemovePrefix)
pubs := [][]byte{}
for iterator.Next(it) {
pub := iterator.Value(it).([]byte)
pubs = append(pubs, pub)
}
return UserInfo{Keys: pubs}
}