120 lines
3.3 KiB
Go
120 lines
3.3 KiB
Go
package reputation
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import (
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"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
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"github.com/nspcc-dev/neo-go/pkg/interop/convert"
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"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
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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/runtime"
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"github.com/nspcc-dev/neo-go/pkg/interop/storage"
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)
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const (
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reputationValuePrefix = 'r'
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reputationCountPrefix = 'c'
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)
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func _deploy(data interface{}, isUpdate bool) {
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if isUpdate {
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args := data.([]interface{})
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common.CheckVersion(args[len(args)-1].(int))
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return
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}
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runtime.Log("reputation contract initialized")
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}
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// Update method updates contract source code and manifest. It can be invoked
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// only by committee.
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func Update(script []byte, manifest []byte, data interface{}) {
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if !common.HasUpdateAccess() {
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panic("only committee can update contract")
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}
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management.UpdateWithData(script, manifest, common.AppendVersion(data))
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runtime.Log("reputation contract updated")
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}
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// Put method saves DataAuditResult in contract storage. It can be invoked only by
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// Inner Ring nodes. It does not require multisignature invocations.
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//
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// Epoch is the epoch number when DataAuditResult structure was generated.
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// PeerID contains public keys of the Inner Ring node that has produced DataAuditResult.
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// Value contains a stable marshaled structure of DataAuditResult.
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func Put(epoch int, peerID []byte, value []byte) {
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ctx := storage.GetContext()
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multiaddr := common.AlphabetAddress()
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if !runtime.CheckWitness(multiaddr) {
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runtime.Notify("reputationPut", epoch, peerID, value)
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return
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}
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id := storageID(epoch, peerID)
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key := getReputationKey(reputationCountPrefix, id)
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rawCnt := storage.Get(ctx, key)
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cnt := 0
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if rawCnt != nil {
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cnt = rawCnt.(int)
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}
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cnt++
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storage.Put(ctx, key, cnt)
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key[0] = reputationValuePrefix
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key = append(key, convert.ToBytes(cnt)...)
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storage.Put(ctx, key, value)
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}
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// Get method returns a list of all stable marshaled DataAuditResult structures
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// produced by the specified Inner Ring node during the specified epoch.
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func Get(epoch int, peerID []byte) [][]byte {
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id := storageID(epoch, peerID)
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return GetByID(id)
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}
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// GetByID method returns a list of all stable marshaled DataAuditResult with
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// the specified id. Use ListByEpoch method to obtain the id.
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func GetByID(id []byte) [][]byte {
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ctx := storage.GetReadOnlyContext()
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var data [][]byte
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it := storage.Find(ctx, getReputationKey(reputationValuePrefix, id), storage.ValuesOnly)
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for iterator.Next(it) {
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data = append(data, iterator.Value(it).([]byte))
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}
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return data
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}
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func getReputationKey(prefix byte, id []byte) []byte {
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return append([]byte{prefix}, id...)
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}
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// ListByEpoch returns a list of IDs that may be used to get reputation data
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// with GetByID method.
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func ListByEpoch(epoch int) [][]byte {
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ctx := storage.GetReadOnlyContext()
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key := getReputationKey(reputationCountPrefix, convert.ToBytes(epoch))
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it := storage.Find(ctx, key, storage.KeysOnly)
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var result [][]byte
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for iterator.Next(it) {
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key := iterator.Value(it).([]byte) // iterator MUST BE `storage.KeysOnly`
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result = append(result, key[1:])
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}
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return result
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}
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// Version returns the 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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func storageID(epoch int, peerID []byte) []byte {
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var buf interface{} = epoch
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return append(buf.([]byte), peerID...)
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}
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