| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| package defaultservice |
| |
| import ( |
| "github.com/apache/incubator-milagro-dta/libs/cryptowallet" |
| "github.com/apache/incubator-milagro-dta/pkg/api" |
| "github.com/apache/incubator-milagro-dta/pkg/common" |
| ) |
| |
| // FulfillOrder - |
| func (s *Service) FulfillOrder(req *api.FulfillOrderRequest) (*api.FulfillOrderResponse, error) { |
| orderPart1CID := req.OrderPart1CID |
| nodeID := s.NodeID() |
| remoteIDDocCID := req.DocumentCID |
| _, _, _, sikeSK, err := common.RetrieveIdentitySecrets(s.Store, nodeID) |
| if err != nil { |
| return nil, err |
| } |
| |
| remoteIDDoc, err := common.RetrieveIDDocFromIPFS(s.Ipfs, remoteIDDocCID) |
| if err != nil { |
| return nil, err |
| } |
| |
| //Retrieve the order from IPFS |
| order, err := common.RetrieveOrderFromIPFS(s.Ipfs, orderPart1CID, sikeSK, nodeID, remoteIDDoc.BLSPublicKey) |
| if err != nil { |
| return nil, err |
| } |
| |
| recipientList, err := common.BuildRecipientList(s.Ipfs, nodeID, nodeID) |
| if err != nil { |
| return nil, err |
| } |
| |
| //Generate the secret and store for later redemption |
| seed, err := common.MakeRandomSeedAndStore(s.Store, s.Rng, order.Reference) |
| if err != nil { |
| return nil, err |
| } |
| |
| //Generate the Public Key (Commitment) from the Seed/Secret |
| commitmentPublicKey, err := cryptowallet.RedeemPublicKey(seed) |
| if err != nil { |
| return nil, err |
| } |
| |
| //Create an order response in IPFS |
| orderPart2CID, err := common.CreateAndStoreOrderPart2(s.Ipfs, s.Store, order, orderPart1CID, commitmentPublicKey, nodeID, recipientList) |
| if err != nil { |
| return nil, err |
| } |
| |
| return &api.FulfillOrderResponse{ |
| OrderPart2CID: orderPart2CID, |
| }, nil |
| } |
| |
| // FulfillOrderSecret - |
| func (s *Service) FulfillOrderSecret(req *api.FulfillOrderSecretRequest) (*api.FulfillOrderSecretResponse, error) { |
| //Initialise values from Request object |
| orderPart3CID := req.OrderPart3CID |
| nodeID := s.NodeID() |
| remoteIDDocCID := req.SenderDocumentCID |
| _, _, _, sikeSK, err := common.RetrieveIdentitySecrets(s.Store, nodeID) |
| if err != nil { |
| return nil, err |
| } |
| |
| remoteIDDoc, err := common.RetrieveIDDocFromIPFS(s.Ipfs, remoteIDDocCID) |
| if err != nil { |
| return nil, err |
| } |
| |
| //Retrieve the order from IPFS |
| order, err := common.RetrieveOrderFromIPFS(s.Ipfs, orderPart3CID, sikeSK, nodeID, remoteIDDoc.BLSPublicKey) |
| if err != nil { |
| return nil, err |
| } |
| |
| recipientList, err := common.BuildRecipientList(s.Ipfs, nodeID, nodeID) |
| if err != nil { |
| return nil, err |
| } |
| |
| //Retrieve the Seed |
| seed, err := common.RetrieveSeed(s.Store, order.Reference) |
| if err != nil { |
| return nil, err |
| } |
| |
| //Generate the Secert from the Seed |
| commitmentPrivateKey, err := cryptowallet.RedeemSecret(seed) |
| if err != nil { |
| return nil, err |
| } |
| |
| //Create an order response in IPFS |
| orderPart4ID, err := common.CreateAndStoreOrderPart4(s.Ipfs, s.Store, order, commitmentPrivateKey, orderPart3CID, nodeID, recipientList) |
| if err != nil { |
| return nil, err |
| } |
| |
| return &api.FulfillOrderSecretResponse{ |
| OrderPart4CID: orderPart4ID, |
| }, nil |
| } |