forked from lorenzodonini/ocpp-go
/
csms_sim.go
302 lines (289 loc) · 12 KB
/
csms_sim.go
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package main
import (
"crypto/tls"
"crypto/x509"
"fmt"
"os"
"strconv"
"time"
"github.com/sirupsen/logrus"
"github.com/lorenzodonini/ocpp-go/ocpp2.0.1"
"github.com/lorenzodonini/ocpp-go/ocpp2.0.1/availability"
"github.com/lorenzodonini/ocpp-go/ocpp2.0.1/diagnostics"
"github.com/lorenzodonini/ocpp-go/ocpp2.0.1/display"
"github.com/lorenzodonini/ocpp-go/ocpp2.0.1/localauth"
"github.com/lorenzodonini/ocpp-go/ocpp2.0.1/provisioning"
"github.com/lorenzodonini/ocpp-go/ocpp2.0.1/remotecontrol"
"github.com/lorenzodonini/ocpp-go/ocpp2.0.1/reservation"
"github.com/lorenzodonini/ocpp-go/ocpp2.0.1/types"
"github.com/lorenzodonini/ocpp-go/ocppj"
"github.com/lorenzodonini/ocpp-go/ws"
)
const (
defaultListenPort = 8887
defaultHeartbeatInterval = 600
envVarServerPort = "SERVER_LISTEN_PORT"
envVarTls = "TLS_ENABLED"
envVarCaCertificate = "CA_CERTIFICATE_PATH"
envVarServerCertificate = "SERVER_CERTIFICATE_PATH"
envVarServerCertificateKey = "SERVER_CERTIFICATE_KEY_PATH"
)
var log *logrus.Logger
var csms ocpp2.CSMS
func setupCentralSystem() ocpp2.CSMS {
return ocpp2.NewCSMS(nil, nil)
}
func setupTlsCentralSystem() ocpp2.CSMS {
var certPool *x509.CertPool
// Load CA certificates
caCertificate, ok := os.LookupEnv(envVarCaCertificate)
if !ok {
log.Infof("no %v found, using system CA pool", envVarCaCertificate)
systemPool, err := x509.SystemCertPool()
if err != nil {
log.Fatalf("couldn't get system CA pool: %v", err)
}
certPool = systemPool
} else {
certPool = x509.NewCertPool()
data, err := os.ReadFile(caCertificate)
if err != nil {
log.Fatalf("couldn't read CA certificate from %v: %v", caCertificate, err)
}
ok = certPool.AppendCertsFromPEM(data)
if !ok {
log.Fatalf("couldn't read CA certificate from %v", caCertificate)
}
}
certificate, ok := os.LookupEnv(envVarServerCertificate)
if !ok {
log.Fatalf("no required %v found", envVarServerCertificate)
}
key, ok := os.LookupEnv(envVarServerCertificateKey)
if !ok {
log.Fatalf("no required %v found", envVarServerCertificateKey)
}
server := ws.NewTLSServer(certificate, key, &tls.Config{
ClientAuth: tls.RequireAndVerifyClientCert,
ClientCAs: certPool,
})
return ocpp2.NewCSMS(nil, server)
}
// Run for every connected Charging Station, to simulate some functionality
func exampleRoutine(chargingStationID string, handler *CSMSHandler) {
// Wait for some time
time.Sleep(2 * time.Second)
// Reserve a connector
reservationID := 42
clientIDTokenType := types.IdToken{IdToken: "1234", Type: types.IdTokenTypeKeyCode}
clientIdTag := "l33t"
connectorID := 1
expiryDate := types.NewDateTime(time.Now().Add(1 * time.Hour))
cb1 := func(confirmation *reservation.ReserveNowResponse, err error) {
if err != nil {
logDefault(chargingStationID, reservation.ReserveNowFeatureName).Errorf("error on request: %v", err)
} else if confirmation.Status == reservation.ReserveNowStatusAccepted {
logDefault(chargingStationID, confirmation.GetFeatureName()).Infof("connector %v reserved for client %v until %v (reservation ID %d)", connectorID, clientIdTag, expiryDate.FormatTimestamp(), reservationID)
} else {
logDefault(chargingStationID, confirmation.GetFeatureName()).Infof("couldn't reserve connector %v: %v", connectorID, confirmation.Status)
}
}
e := csms.ReserveNow(chargingStationID, cb1, reservationID, expiryDate, clientIDTokenType)
if e != nil {
logDefault(chargingStationID, reservation.ReserveNowFeatureName).Errorf("couldn't send message: %v", e)
return
}
// Wait for some time
time.Sleep(1 * time.Second)
// Cancel the reservation
cb2 := func(confirmation *reservation.CancelReservationResponse, err error) {
if err != nil {
logDefault(chargingStationID, reservation.CancelReservationFeatureName).Errorf("error on request: %v", err)
} else if confirmation.Status == reservation.CancelReservationStatusAccepted {
logDefault(chargingStationID, confirmation.GetFeatureName()).Infof("reservation %v canceled successfully", reservationID)
} else {
logDefault(chargingStationID, confirmation.GetFeatureName()).Infof("couldn't cancel reservation %v", reservationID)
}
}
e = csms.CancelReservation(chargingStationID, cb2, reservationID)
if e != nil {
logDefault(chargingStationID, reservation.ReserveNowFeatureName).Errorf("couldn't send message: %v", e)
return
}
// Wait for some time
time.Sleep(5 * time.Second)
// Get current local list version
cb3 := func(confirmation *localauth.GetLocalListVersionResponse, err error) {
if err != nil {
logDefault(chargingStationID, localauth.GetLocalListVersionFeatureName).Errorf("error on request: %v", err)
} else {
logDefault(chargingStationID, confirmation.GetFeatureName()).Infof("current local list version: %v", confirmation.VersionNumber)
}
}
e = csms.GetLocalListVersion(chargingStationID, cb3)
if e != nil {
logDefault(chargingStationID, localauth.GetLocalListVersionFeatureName).Errorf("couldn't send message: %v", e)
return
}
// Wait for some time
time.Sleep(5 * time.Second)
setVariableData := []provisioning.SetVariableData{
{
AttributeType: types.AttributeTarget,
AttributeValue: "10",
Component: types.Component{Name: "OCPPCommCtrlr"},
Variable: types.Variable{Name: "HeartbeatInterval"},
},
{
AttributeType: types.AttributeTarget,
AttributeValue: "true",
Component: types.Component{Name: "AuthCtrlr"},
Variable: types.Variable{Name: "Enabled"},
},
}
// Change meter sampling values time
cb4 := func(response *provisioning.SetVariablesResponse, err error) {
if err != nil {
logDefault(chargingStationID, provisioning.SetVariablesFeatureName).Errorf("error on request: %v", err)
return
}
for _, r := range response.SetVariableResult {
if r.AttributeStatus == provisioning.SetVariableStatusNotSupported {
logDefault(chargingStationID, response.GetFeatureName()).Warnf("couldn't update variable %v for component %v: unsupported", r.Variable.Name, r.Component.Name)
} else if r.AttributeStatus == provisioning.SetVariableStatusUnknownComponent {
logDefault(chargingStationID, response.GetFeatureName()).Warnf("couldn't update variable for unknown component %v", r.Component.Name)
} else if r.AttributeStatus == provisioning.SetVariableStatusUnknownVariable {
logDefault(chargingStationID, response.GetFeatureName()).Warnf("couldn't update unknown variable %v for component %v", r.Variable.Name, r.Component.Name)
} else if r.AttributeStatus == provisioning.SetVariableStatusRejected {
logDefault(chargingStationID, response.GetFeatureName()).Warnf("couldn't update variable %v for key: %v", r.Variable.Name, r.Component.Name)
} else {
logDefault(chargingStationID, response.GetFeatureName()).Infof("updated variable %v for component %v", r.Variable.Name, r.Component.Name)
}
}
}
e = csms.SetVariables(chargingStationID, cb4, setVariableData)
if e != nil {
logDefault(chargingStationID, localauth.GetLocalListVersionFeatureName).Errorf("couldn't send message: %v", e)
return
}
// Wait for some time
time.Sleep(5 * time.Second)
// Trigger a heartbeat message
cb5 := func(response *remotecontrol.TriggerMessageResponse, err error) {
if err != nil {
logDefault(chargingStationID, remotecontrol.TriggerMessageFeatureName).Errorf("error on request: %v", err)
} else if response.Status == remotecontrol.TriggerMessageStatusAccepted {
logDefault(chargingStationID, response.GetFeatureName()).Infof("%v triggered successfully", availability.HeartbeatFeatureName)
} else if response.Status == remotecontrol.TriggerMessageStatusRejected {
logDefault(chargingStationID, response.GetFeatureName()).Infof("%v trigger was rejected", availability.HeartbeatFeatureName)
}
}
e = csms.TriggerMessage(chargingStationID, cb5, remotecontrol.MessageTriggerHeartbeat)
if e != nil {
logDefault(chargingStationID, remotecontrol.TriggerMessageFeatureName).Errorf("couldn't send message: %v", e)
return
}
// Wait for some time
time.Sleep(5 * time.Second)
// Trigger a diagnostics status notification
cb6 := func(response *remotecontrol.TriggerMessageResponse, err error) {
if err != nil {
logDefault(chargingStationID, remotecontrol.TriggerMessageFeatureName).Errorf("error on request: %v", err)
} else if response.Status == remotecontrol.TriggerMessageStatusAccepted {
logDefault(chargingStationID, response.GetFeatureName()).Infof("%v triggered successfully", diagnostics.LogStatusNotificationFeatureName)
} else if response.Status == remotecontrol.TriggerMessageStatusRejected {
logDefault(chargingStationID, response.GetFeatureName()).Infof("%v trigger was rejected", diagnostics.LogStatusNotificationFeatureName)
}
}
e = csms.TriggerMessage(chargingStationID, cb6, remotecontrol.MessageTriggerLogStatusNotification)
if e != nil {
logDefault(chargingStationID, remotecontrol.TriggerMessageFeatureName).Errorf("couldn't send message: %v", e)
return
}
// Wait for some time
time.Sleep(5 * time.Second)
// Set a custom display message
cb7 := func(response *display.SetDisplayMessageResponse, err error) {
if err != nil {
logDefault(chargingStationID, display.SetDisplayMessageFeatureName).Errorf("error on request: %v", err)
} else if response.Status == display.DisplayMessageStatusAccepted {
logDefault(chargingStationID, response.GetFeatureName()).Info("display message set successfully")
} else {
logDefault(chargingStationID, response.GetFeatureName()).Errorf("failed to set display message: %v", response.Status)
}
}
var currentTx int
for txID := range handler.chargingStations[chargingStationID].transactions {
currentTx = txID
break
}
e = csms.SetDisplayMessage(chargingStationID, cb7, display.MessageInfo{
ID: 42,
Priority: display.MessagePriorityInFront,
State: display.MessageStateCharging,
TransactionID: fmt.Sprintf("%d", currentTx),
Message: types.MessageContent{
Format: types.MessageFormatUTF8,
Language: "en-US",
Content: "Hello world!",
},
})
if e != nil {
logDefault(chargingStationID, display.SetDisplayMessageFeatureName).Errorf("couldn't send message: %v", e)
return
}
// Finish simulation
}
// Start function
func main() {
// Load config from ENV
var listenPort = defaultListenPort
port, _ := os.LookupEnv(envVarServerPort)
if p, err := strconv.Atoi(port); err == nil {
listenPort = p
} else {
log.Printf("no valid %v environment variable found, using default port", envVarServerPort)
}
// Check if TLS enabled
t, _ := os.LookupEnv(envVarTls)
tlsEnabled, _ := strconv.ParseBool(t)
// Prepare OCPP 1.6 central system
if tlsEnabled {
csms = setupTlsCentralSystem()
} else {
csms = setupCentralSystem()
}
// Support callbacks for all OCPP 2.0.1 profiles
handler := &CSMSHandler{chargingStations: map[string]*ChargingStationState{}}
csms.SetAuthorizationHandler(handler)
csms.SetAvailabilityHandler(handler)
csms.SetDiagnosticsHandler(handler)
csms.SetFirmwareHandler(handler)
csms.SetLocalAuthListHandler(handler)
csms.SetMeterHandler(handler)
csms.SetProvisioningHandler(handler)
csms.SetRemoteControlHandler(handler)
csms.SetReservationHandler(handler)
csms.SetTariffCostHandler(handler)
csms.SetTransactionsHandler(handler)
// Add handlers for dis/connection of charging stations
csms.SetNewChargingStationHandler(func(chargingStation ocpp2.ChargingStationConnection) {
handler.chargingStations[chargingStation.ID()] = &ChargingStationState{connectors: map[int]*ConnectorInfo{}, transactions: map[int]*TransactionInfo{}}
log.WithField("client", chargingStation.ID()).Info("new charging station connected")
go exampleRoutine(chargingStation.ID(), handler)
})
csms.SetChargingStationDisconnectedHandler(func(chargingStation ocpp2.ChargingStationConnection) {
log.WithField("client", chargingStation.ID()).Info("charging station disconnected")
delete(handler.chargingStations, chargingStation.ID())
})
ocppj.SetLogger(log)
// Run CSMS
log.Infof("starting CSMS on port %v", listenPort)
csms.Start(listenPort, "/{ws}")
log.Info("stopped CSMS")
}
func init() {
log = logrus.New()
log.SetFormatter(&logrus.TextFormatter{FullTimestamp: true})
log.SetLevel(logrus.InfoLevel)
}