import (
	"context"
	"fmt"

	"google.golang.org/grpc/credentials"

	"istio.io/istio/pkg/security"
)

// TokenProvider is a grpc PerRPCCredentials that can be used to attach a JWT token to each gRPC call.
// TokenProvider can be used for XDS, which may involve token exchange through STS.
type DefaultTokenProvider struct {
	opts *security.Options
}

var _ credentials.PerRPCCredentials = &DefaultTokenProvider{}

        volumeMounts:
        - mountPath: /var/run/secrets/workload-spiffe-uds
          name: workload-socket
        - mountPath: /var/run/secrets/credential-uds
          name: credential-socket
        - mountPath: /var/run/secrets/workload-spiffe-credentials
          name: workload-certs
        - mountPath: /var/lib/istio/data
          name: istio-data
        - mountPath: /etc/istio/proxy

        volumeMounts:
        - mountPath: /var/run/secrets/workload-spiffe-uds
          name: workload-socket
        - mountPath: /var/run/secrets/credential-uds
          name: credential-socket
        - mountPath: /var/run/secrets/workload-spiffe-credentials
          name: workload-certs
        - mountPath: /var/lib/istio/data
          name: istio-data
        - mountPath: /etc/istio/proxy

metadata:
  name: db-tls
spec:
  host: mydbserver.prod.svc.cluster.local
  trafficPolicy:
    portLevelSettings:
      - port:
          number: 443
        tls:
          mode: SIMPLE
          credentialName: db-credential
  workloadSelector:
      matchLabels:

        @Override
        boolean check(Object credentials) {
            if (credentials instanceof String) {
                byte[] hash = authentication.getAnsiHash(challenge)
                byte[] clientChallenge = hash[16..-1] as byte[]

                def response = NtlmPasswordAuthentication.getLMv2Response(authentication.domain, authentication.username, credentials, challenge, clientChallenge)

sleep 5

# Generate STS credential with STS call to minio1
STS_CRED=$(MINIO_ENDPOINT=http://localhost:9001 go run ./docs/site-replication/gen-oidc-sts-cred.go)

MC_HOST_foo=http://${STS_CRED}@localhost:9001 ./mc ls foo
if [ $? -ne 0 ]; then
	echo "Expected sts credential to work, exiting.."
	exit_1
fi

sleep 2

# Check that the STS credential works on minio2 and minio3.

    - name: credential-socket
      mountPath: /var/run/secrets/credential-uds
    {{- if eq .Values.global.caName "GkeWorkloadCertificate" }}
    - name: gke-workload-certificate
      mountPath: /var/run/secrets/workload-spiffe-credentials
      readOnly: true
    {{- else }}
    - name: workload-certs
      mountPath: /var/run/secrets/workload-spiffe-credentials
    {{- end }}

			// Unable to parse old JSON simply re-initialize a new one.
			return newServerCfg()
		}
	}

	if !globalCredViaEnv && cfg.Credential.IsValid() {
		// Preserve older credential if we do not have
		// root credentials set via environment variable.
		globalActiveCred = cfg.Credential
	}

	// Init compression config. For future migration, Compression config needs to be copied over from previous version.

    - name: credential-socket
      mountPath: /var/run/secrets/credential-uds
    {{- if eq .Values.global.caName "GkeWorkloadCertificate" }}
    - name: gke-workload-certificate
      mountPath: /var/run/secrets/workload-spiffe-credentials
      readOnly: true
    {{- else }}
    - name: workload-certs
      mountPath: /var/run/secrets/workload-spiffe-credentials
    {{- end }}

apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: db-tls
spec:
  host: mydbserver.prod.svc.cluster.local
  trafficPolicy:
    tls:
      mode: SIMPLE