[#51] container: Support notary contract

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

container/container_contract.go

@@ -90,21 +90,14 @@ func Migrate(script []byte, manifest []byte) bool {
 }
 
 func Put(container, signature, publicKey []byte) bool {
-	netmapContractAddr := storage.Get(ctx, netmapContractKey).([]byte)
-	innerRing := common.InnerRingList(netmapContractAddr)
-	threshold := len(innerRing)/3*2 + 1
-
 	offset := int(container[1])
 	offset = 2 + offset + 4                  // version prefix + version size + owner prefix
 	ownerID := container[offset : offset+25] // offset + size of owner
 	containerID := crypto.SHA256(container)
 	neofsIDContractAddr := storage.Get(ctx, neofsIDContractKey).([]byte)
 
-	// If invoked from storage node, ignore it.
+	multiaddr := common.InnerRingMultiAddressViaStorage(ctx, netmapContractKey)
-	// Inner ring will find tx, validate it and send it again.
+	if !runtime.CheckWitness(multiaddr) {
-	irKey := common.InnerRingInvoker(innerRing)
-	if len(irKey) == 0 {
-		// check provided key
 		if !isSignedByOwnerKey(container, signature, ownerID, publicKey) {
 			// check keys from NeoFSID
 			keys := contract.Call(neofsIDContractAddr, "key", contract.ReadOnly, ownerID).([][]byte)
@@ -119,15 +112,13 @@ func Put(container, signature, publicKey []byte) bool {
 	}
 
 	from := walletToScripHash(ownerID)
+	netmapContractAddr := storage.Get(ctx, netmapContractKey).([]byte)
 	balanceContractAddr := storage.Get(ctx, balanceContractKey).([]byte)
 	containerFee := contract.Call(netmapContractAddr, "config", contract.ReadOnly, containerFeeKey).(int)
-	hashCandidate := common.InvokeID([]interface{}{container, signature, publicKey}, []byte("put"))
 
-	n := common.Vote(ctx, hashCandidate, irKey)
-	if n >= threshold {
-		common.RemoveVotes(ctx, hashCandidate)
 	// todo: check if new container with unique container id
 
+	innerRing := common.InnerRingList(netmapContractAddr)
 	for i := 0; i < len(innerRing); i++ {
 		node := innerRing[i]
 		to := contract.CreateStandardAccount(node.PublicKey)
@@ -140,36 +131,26 @@ func Put(container, signature, publicKey []byte) bool {
 			containerFeeTransferMsg, // consider add container id to the message
 		)
 		if !tx.(bool) {
-				// todo: consider using `return false` to remove votes
 			panic("put: can't transfer assets for container creation")
 		}
 	}
 
 	addContainer(ctx, containerID, ownerID, container)
-		// try to remove underscore at v0.92.0
+	contract.Call(neofsIDContractAddr, "addKey", contract.All, ownerID, [][]byte{publicKey})
-		_ = contract.Call(neofsIDContractAddr, "addKey", contract.All, ownerID, [][]byte{publicKey})
 
 	runtime.Log("put: added new container")
-	} else {
-		runtime.Log("put: processed invoke from inner ring")
-	}
 
 	return true
 }
 
 func Delete(containerID, signature []byte) bool {
-	innerRing := irList()
-	threshold := len(innerRing)/3*2 + 1
-
 	ownerID := getOwnerByID(ctx, containerID)
 	if len(ownerID) == 0 {
 		panic("delete: container does not exist")
 	}
 
-	// If invoked from storage node, ignore it.
+	multiaddr := common.InnerRingMultiAddressViaStorage(ctx, netmapContractKey)
-	// Inner ring will find tx, validate it and send it again.
+	if !runtime.CheckWitness(multiaddr) {
-	irKey := common.InnerRingInvoker(innerRing)
-	if len(irKey) == 0 {
 		// check provided key
 		neofsIDContractAddr := storage.Get(ctx, neofsIDContractKey).([]byte)
 		keys := contract.Call(neofsIDContractAddr, "key", contract.ReadOnly, ownerID).([][]byte)
@@ -182,16 +163,8 @@ func Delete(containerID, signature []byte) bool {
 		return true
 	}
 
-	hashCandidate := common.InvokeID([]interface{}{containerID, signature}, []byte("delete"))
-
-	n := common.Vote(ctx, hashCandidate, irKey)
-	if n >= threshold {
-		common.RemoveVotes(ctx, hashCandidate)
 	removeContainer(ctx, containerID, ownerID)
 	runtime.Log("delete: remove container")
-	} else {
-		runtime.Log("delete: processed invoke from inner ring")
-	}
 
 	return true
 }
@@ -344,70 +317,37 @@ func ListContainerSizes(epoch int) [][]byte {
 }
 
 func ProcessEpoch(epochNum int) {
-	innerRing := irList()
+	multiaddr := common.InnerRingMultiAddressViaStorage(ctx, netmapContractKey)
-	threshold := len(innerRing)/3*2 + 1
+	if !runtime.CheckWitness(multiaddr) {
-
-	irKey := common.InnerRingInvoker(innerRing)
-	if len(irKey) == 0 {
 		panic("processEpoch: this method must be invoked from inner ring")
 	}
 
 	candidates := keysToDelete(epochNum)
-	epochID := common.InvokeID([]interface{}{epochNum}, []byte("epoch"))
+	for _, candidate := range candidates {
-
-	n := common.Vote(ctx, epochID, irKey)
-	if n >= threshold {
-		common.RemoveVotes(ctx, epochID)
-
-		for i := range candidates {
-			candidate := candidates[i]
 		storage.Delete(ctx, candidate)
 	}
-	}
 }
 
 func StartContainerEstimation(epoch int) bool {
-	innerRing := irList()
+	multiaddr := common.InnerRingMultiAddressViaStorage(ctx, netmapContractKey)
-	threshold := len(innerRing)/3*2 + 1
+	if !runtime.CheckWitness(multiaddr) {
-
-	irKey := common.InnerRingInvoker(innerRing)
-	if len(irKey) == 0 {
 		panic("startEstimation: only inner ring nodes can invoke this")
 	}
 
-	hashCandidate := common.InvokeID([]interface{}{epoch}, []byte("startEstimation"))
-
-	n := common.Vote(ctx, hashCandidate, irKey)
-	if n >= threshold {
-		common.RemoveVotes(ctx, hashCandidate)
 	runtime.Notify("StartEstimation", epoch)
 	runtime.Log("startEstimation: notification has been produced")
-	} else {
-		runtime.Log("startEstimation: processed invoke from inner ring")
-	}
 
 	return true
 }
 
 func StopContainerEstimation(epoch int) bool {
-	innerRing := irList()
+	multiaddr := common.InnerRingMultiAddressViaStorage(ctx, netmapContractKey)
-	threshold := len(innerRing)/3*2 + 1
+	if !runtime.CheckWitness(multiaddr) {
-
-	irKey := common.InnerRingInvoker(innerRing)
-	if len(irKey) == 0 {
 		panic("stopEstimation: only inner ring nodes can invoke this")
 	}
 
-	hashCandidate := common.InvokeID([]interface{}{epoch}, []byte("stopEstimation"))
-
-	n := common.Vote(ctx, hashCandidate, irKey)
-	if n >= threshold {
-		common.RemoveVotes(ctx, hashCandidate)
 	runtime.Notify("StopEstimation", epoch)
 	runtime.Log("stopEstimation: notification has been produced")
-	} else {
-		runtime.Log("stopEstimation: processed invoke from inner ring")
-	}
 
 	return true
 }
@@ -600,7 +540,3 @@ func keysToDelete(epoch int) [][]byte {
 
 	return results
 }
-
-func irList() []common.IRNode {
-	return common.InnerRingListViaStorage(ctx, netmapContractKey)
-}