93 lines
2.1 KiB
Go
93 lines
2.1 KiB
Go
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package reputationcontract
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import (
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"github.com/nspcc-dev/neo-go/pkg/interop/binary"
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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 version = 1
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const (
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peerIDSize = 46 // NeoFS PeerIDSize
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trustValSize = 8 // float64
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trustStructSize = 0 +
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peerIDSize + // manager ID
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peerIDSize + // trusted ID
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trustValSize // trust value
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)
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var (
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trustJournalPrefix = []byte("trustJournal")
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ctx storage.Context
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)
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func init() {
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if runtime.GetTrigger() != runtime.Application {
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panic("contract has not been called in application node")
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}
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ctx = storage.GetContext()
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}
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func Put(manager, epoch, typ []byte, newTrustList [][]byte) bool {
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if !runtime.CheckWitness(manager) {
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panic("put: incorrect manager key")
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}
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for i := 0; i < len(newTrustList); i++ {
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trustData := newTrustList[i]
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if len(trustData) != trustStructSize {
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panic("list: invalid trust value")
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}
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}
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// todo: consider using notification for inner ring node
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// todo: limit size of the trust journal:
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// history will be stored in chain (args or notifies)
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// contract storage will be used as a cache if needed
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key := append(trustJournalPrefix, append(epoch, typ...)...)
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trustList := getList(ctx, key)
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// fixme: with neo3.0 it is kinda unnecessary
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if len(trustList) == 0 {
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// if journal slice is not initialized, then `append` will throw
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trustList = newTrustList
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} else {
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for i := 0; i < len(newTrustList); i++ {
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trustList = append(trustList, newTrustList[i])
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}
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}
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setSerialized(ctx, key, trustList)
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runtime.Log("trust list was successfully updated")
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return true
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}
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func List(epoch, typ []byte) [][]byte {
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key := append(trustJournalPrefix, append(epoch, typ...)...)
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return getList(ctx, key)
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}
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func getList(ctx storage.Context, key interface{}) [][]byte {
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data := storage.Get(ctx, key)
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if data != nil {
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return binary.Deserialize(data.([]byte)).([][]byte)
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}
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return [][]byte{}
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}
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func setSerialized(ctx storage.Context, key interface{}, value interface{}) {
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data := binary.Serialize(value)
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storage.Put(ctx, key, data)
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}
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