"github.com/minio/pkg/v2/policy"
	"github.com/minio/pkg/v2/policy/condition"
)

func getAnonReadOnlyBucketPolicy(bucketName string) *policy.BucketPolicy {
	return &policy.BucketPolicy{
		Version: policy.DefaultVersion,
		Statements: []policy.BPStatement{
			policy.NewBPStatement(
				"",
				policy.Allow,
				policy.NewPrincipal("*"),
				policy.NewActionSet(policy.GetBucketLocationAction, policy.ListBucketAction),

				policy.NewResourceSet(policy.NewResource("mybucket")),
				condition.NewFunctions(),
			),
			policy.NewBPStatement("",
				policy.Allow,
				policy.NewPrincipal("*"),
				policy.NewActionSet(policy.PutObjectAction),
				policy.NewResourceSet(policy.NewResource("mybucket/myobject*")),
				condition.NewFunctions(),
			),
		},
	}

	anonGetBucketLocationArgs := policy.BucketPolicyArgs{

	}

	// 4. Verify the policy appears in listing
	ps, err := s.adm.ListCannedPolicies(ctx)
	if err != nil {
		c.Fatalf("policy list err: %v", err)
	}
	_, ok := ps[policy]
	if !ok {
		c.Fatalf("policy was missing!")
	}

	// 5. Check that policy cannot be deleted when attached to a user.
	err = s.adm.RemoveCannedPolicy(ctx, policy)
	if err == nil {

		sessionPolicy, err := policy.ParseConfig(bytes.NewReader([]byte(sessionPolicyStr)))
		if err != nil {
			writeSTSErrorResponse(ctx, w, ErrSTSInvalidParameterValue, err)
			return
		}

		// Version in policy must not be empty
		if sessionPolicy.Version == "" {
			writeSTSErrorResponse(ctx, w, ErrSTSInvalidParameterValue, fmt.Errorf("Invalid session policy version"))
			return
		}

	defer cancel()

	bucket := getRandomBucketName()
	err := s.client.MakeBucket(ctx, bucket, minio.MakeBucketOptions{})
	if err != nil {
		c.Fatalf("bucket creat error: %v", err)
	}

	// Create a policy policy
	policy := "mypolicy"
	policyBytes := []byte(fmt.Sprintf(`{
 "Version": "2012-10-17",
 "Statement": [
  {
   "Effect": "Allow",
   "Action": [
    "s3:PutObject",
    "s3:GetObject",
    "s3:ListBucket"
   ],

	xnet "github.com/minio/pkg/v2/net"
	"github.com/minio/pkg/v2/policy"
)

// Authorization Plugin config and env variables
const (
	URL         = "url"
	AuthToken   = "auth_token"
	EnableHTTP2 = "enable_http2"

	EnvPolicyPluginURL         = "MINIO_POLICY_PLUGIN_URL"
	EnvPolicyPluginAuthToken   = "MINIO_POLICY_PLUGIN_AUTH_TOKEN"
	EnvPolicyPluginEnableHTTP2 = "MINIO_POLICY_PLUGIN_ENABLE_HTTP2"
)

}

// DescribePolicy describes a policy by returning its metadata.
// e.g. who created the policy at which point in time.
func (c *kesClient) DescribePolicy(ctx context.Context, policy string) (*kes.PolicyInfo, error) {
	c.lock.RLock()
	defer c.lock.RUnlock()

	return c.client.DescribePolicy(ctx, policy)
}

// ListPolicies returns an iterator over all policy names.

	"istio.io/istio/pkg/log"
	"istio.io/istio/pkg/wellknown"
)

const (
	anonymousName = "_anonymous_match_nothing_"
)

// Matches the policy name in RBAC filter config with format like ns[default]-policy[some-policy]-rule[1].
var re = regexp.MustCompile(`ns\[(.+)\]-policy\[(.+)\]-rule\[(.+)\]`)

type filterChain struct {
	rbacHTTP []*rbachttp.RBAC
	rbacTCP  []*rbactcp.RBAC
}

type parsedListener struct {

	var objectAPI ObjectLayer
	switch serviceSig {
	case serviceRestart:
		objectAPI, _ = validateAdminReq(ctx, w, r, policy.ServiceRestartAdminAction)
	case serviceStop:
		objectAPI, _ = validateAdminReq(ctx, w, r, policy.ServiceStopAdminAction)
	case serviceFreeze, serviceUnFreeze:
		objectAPI, _ = validateAdminReq(ctx, w, r, policy.ServiceFreezeAdminAction)
	}
	if objectAPI == nil {
		return
	}

			//   error.
			// * if you don’t have the s3:ListBucket
			//   permission, Amazon S3 will return an HTTP
			//   status code 403 ("access denied") error.`
			if globalPolicySys.IsAllowed(policy.BucketPolicyArgs{
				Action:          policy.ListBucketAction,
				BucketName:      bucket,
				ConditionValues: getConditionValues(r, "", auth.AnonymousCredentials),
				IsOwner:         false,
			}) {