/
request_as.go
240 lines (216 loc) · 8.23 KB
/
request_as.go
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/**
* Copyright (c) 2018, 2019 National Digital ID COMPANY LIMITED
*
* This file is part of NDID software.
*
* NDID is the free software: you can redistribute it and/or modify it under
* the terms of the Affero GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or any later
* version.
*
* NDID is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the Affero GNU General Public License for more details.
*
* You should have received a copy of the Affero GNU General Public License
* along with the NDID source code. If not, see https://www.gnu.org/licenses/agpl.txt.
*
* Please contact info@ndid.co.th for any further questions
*
*/
package app
import (
"encoding/json"
"fmt"
"github.com/tendermint/tendermint/abci/types"
"google.golang.org/protobuf/proto"
"github.com/ndidplatform/smart-contract/v7/abci/code"
"github.com/ndidplatform/smart-contract/v7/abci/utils"
data "github.com/ndidplatform/smart-contract/v7/protos/data"
)
type CreateAsResponseParam struct {
ServiceID string `json:"service_id"`
RequestID string `json:"request_id"`
Signature string `json:"signature"`
ErrorCode *int32 `json:"error_code"`
}
func (app *ABCIApplication) createAsResponse(param string, nodeID string) types.ResponseDeliverTx {
app.logger.Infof("CreateAsResponse, Parameter: %s", param)
var createAsResponseParam CreateAsResponseParam
err := json.Unmarshal([]byte(param), &createAsResponseParam)
if err != nil {
return app.ReturnDeliverTxLog(code.UnmarshalError, err.Error(), "")
}
requestKey := requestKeyPrefix + keySeparator + createAsResponseParam.RequestID
requestJSON, err := app.state.GetVersioned([]byte(requestKey), 0, false)
if err != nil {
return app.ReturnDeliverTxLog(code.AppStateError, err.Error(), "")
}
if requestJSON == nil {
return app.ReturnDeliverTxLog(code.RequestIDNotFound, "Request ID not found", "")
}
var request data.Request
err = proto.Unmarshal([]byte(requestJSON), &request)
if err != nil {
return app.ReturnDeliverTxLog(code.UnmarshalError, err.Error(), "")
}
// Check error code exists
if createAsResponseParam.ErrorCode != nil {
errorCodeKey := errorCodeKeyPrefix + keySeparator + "as" + keySeparator + fmt.Sprintf("%d", *createAsResponseParam.ErrorCode)
hasErrorCodeKey, err := app.state.Has([]byte(errorCodeKey), false)
if err != nil {
return app.ReturnDeliverTxLog(code.AppStateError, err.Error(), "")
}
if !hasErrorCodeKey {
return app.ReturnDeliverTxLog(code.InvalidErrorCode, "ErrorCode does not exist", "")
}
}
// Check closed request
if request.Closed {
return app.ReturnDeliverTxLog(code.RequestIsClosed, "Request is closed", "")
}
// Check timed out request
if request.TimedOut {
return app.ReturnDeliverTxLog(code.RequestIsTimedOut, "Request is timed out", "")
}
// Check Service ID
serviceKey := serviceKeyPrefix + keySeparator + createAsResponseParam.ServiceID
serviceJSON, err := app.state.Get([]byte(serviceKey), false)
if err != nil {
return app.ReturnDeliverTxLog(code.AppStateError, err.Error(), "")
}
if serviceJSON == nil {
return app.ReturnDeliverTxLog(code.ServiceIDNotFound, "Service ID not found", "")
}
var service data.ServiceDetail
err = proto.Unmarshal([]byte(serviceJSON), &service)
if err != nil {
return app.ReturnDeliverTxLog(code.UnmarshalError, err.Error(), "")
}
// Check service is active
if !service.Active {
return app.ReturnDeliverTxLog(code.ServiceIsNotActive, "Service is not active", "")
}
// Check service destination is approved by NDID
approveServiceKey := approvedServiceKeyPrefix + keySeparator + createAsResponseParam.ServiceID + keySeparator + nodeID
approveServiceJSON, err := app.state.Get([]byte(approveServiceKey), false)
if err != nil {
return app.ReturnDeliverTxLog(code.AppStateError, err.Error(), "")
}
if approveServiceJSON == nil {
return app.ReturnDeliverTxLog(code.ServiceIDNotFound, "Service ID not found", "")
}
var approveService data.ApproveService
err = proto.Unmarshal([]byte(approveServiceJSON), &approveService)
if err != nil {
return app.ReturnDeliverTxLog(code.UnmarshalError, err.Error(), "")
}
if !approveService.Active {
return app.ReturnDeliverTxLog(code.ServiceDestinationIsNotActive, "Service destination is not approved by NDID", "")
}
// Check service destination is active
serviceDestinationKey := serviceDestinationKeyPrefix + keySeparator + createAsResponseParam.ServiceID
serviceDestinationValue, err := app.state.Get([]byte(serviceDestinationKey), false)
if err != nil {
return app.ReturnDeliverTxLog(code.AppStateError, err.Error(), "")
}
if serviceDestinationValue == nil {
return app.ReturnDeliverTxLog(code.ServiceDestinationNotFound, "Service destination not found", "")
}
var nodes data.ServiceDesList
err = proto.Unmarshal([]byte(serviceDestinationValue), &nodes)
if err != nil {
return app.ReturnDeliverTxLog(code.UnmarshalError, err.Error(), "")
}
for index := range nodes.Node {
if nodes.Node[index].NodeId == nodeID {
if !nodes.Node[index].Active {
return app.ReturnDeliverTxLog(code.ServiceDestinationIsNotActive, "Service destination is not active", "")
}
break
}
}
// Check nodeID is exist in as_id_list
exist := false
for _, dataRequest := range request.DataRequestList {
if dataRequest.ServiceId == createAsResponseParam.ServiceID {
for _, as := range dataRequest.AsIdList {
if as == nodeID {
exist = true
break
}
}
}
}
if exist == false {
return app.ReturnDeliverTxLog(code.NodeIDDoesNotExistInASList, "Node ID does not exist in AS list", "")
}
// Check Duplicate AS ID
for _, dataRequest := range request.DataRequestList {
if dataRequest.ServiceId == createAsResponseParam.ServiceID {
for _, asResponse := range dataRequest.ResponseList {
if asResponse.AsId == nodeID {
return app.ReturnDeliverTxLog(code.DuplicateASResponse, "Duplicate AS response", "")
}
}
}
}
// Check min_as
for _, dataRequest := range request.DataRequestList {
if dataRequest.ServiceId == createAsResponseParam.ServiceID {
if dataRequest.MinAs > 0 {
var nonErrorResponseCount int64 = 0
for _, asResponse := range dataRequest.ResponseList {
if asResponse.ErrorCode == 0 {
nonErrorResponseCount++
}
}
if nonErrorResponseCount >= dataRequest.MinAs {
return app.ReturnDeliverTxLog(code.DataRequestIsCompleted, "Can't create AS response to a request with enough AS responses", "")
}
var remainingPossibleResponseCount int64 = int64(len(dataRequest.AsIdList)) - int64(len(dataRequest.ResponseList))
if nonErrorResponseCount+remainingPossibleResponseCount < dataRequest.MinAs {
return app.ReturnDeliverTxLog(code.DataRequestCannotBeFulfilled, "Can't create AS response to a data request that cannot be fulfilled", "")
}
}
}
}
var signDataKey string
var signDataValue string
if createAsResponseParam.ErrorCode == nil {
signDataKey = dataSignatureKeyPrefix + keySeparator + nodeID + keySeparator + createAsResponseParam.ServiceID + keySeparator + createAsResponseParam.RequestID
signDataValue = createAsResponseParam.Signature
}
// Update answered_as_id_list in request
for index, dataRequest := range request.DataRequestList {
if dataRequest.ServiceId == createAsResponseParam.ServiceID {
var asResponse data.ASResponse
if createAsResponseParam.ErrorCode == nil {
asResponse = data.ASResponse{
AsId: nodeID,
Signed: true,
ReceivedData: false,
}
} else {
asResponse = data.ASResponse{
AsId: nodeID,
ErrorCode: *createAsResponseParam.ErrorCode,
}
}
request.DataRequestList[index].ResponseList = append(dataRequest.ResponseList, &asResponse)
}
}
requestJSON, err = utils.ProtoDeterministicMarshal(&request)
if err != nil {
return app.ReturnDeliverTxLog(code.MarshalError, err.Error(), "")
}
err = app.state.SetVersioned([]byte(requestKey), []byte(requestJSON))
if err != nil {
return app.ReturnDeliverTxLog(code.AppStateError, err.Error(), "")
}
if createAsResponseParam.ErrorCode == nil {
app.state.Set([]byte(signDataKey), []byte(signDataValue))
}
return app.ReturnDeliverTxLog(code.OK, "success", createAsResponseParam.RequestID)
}