return args
}

// PolicyToBucketAccessPolicy converts a MinIO policy into a minio-go policy data structure.
func PolicyToBucketAccessPolicy(bucketPolicy *policy.BucketPolicy) (*miniogopolicy.BucketAccessPolicy, error) {
	// Return empty BucketAccessPolicy for empty bucket policy.
	if bucketPolicy == nil {
		return &miniogopolicy.BucketAccessPolicy{Version: policy.DefaultVersion}, nil
	}

	data, err := json.Marshal(bucketPolicy)

	"github.com/minio/pkg/v3/policy"
	"github.com/minio/pkg/v3/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),

Klaus Post <******@****.***> 1756435188 +0200

	// 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[policy1]
	if !ok {
		c.Fatalf("policy was missing!")
	}

	// Detach policy1 to set up for policy2
	_, err = s.adm.DetachPolicy(ctx, madmin.PolicyAssociationReq{
		Policies: []string{policy1},
		User:     accessKey,
	})

// GetCombinedPolicy returns a combined policy combining all policies
func (sys *IAMSys) GetCombinedPolicy(policies ...string) policy.Policy {
	_, policy := sys.store.MergePolicies(strings.Join(policies, ","))
	return policy
}

// doesPolicyAllow - checks if the given policy allows the passed action with given args. This is rarely needed.
// Notice there is no account name involved, so this is a dangerous function.

func (store *IAMStoreSys) GetPolicy(name string) (policy.Policy, error) {
	if name == "" {
		return policy.Policy{}, errInvalidArgument
	}

	cache := store.rlock()
	defer store.runlock()

	policies := newMappedPolicy(name).toSlice()
	var toMerge []policy.Policy
	for _, policy := range policies {
		if policy == "" {
			continue
		}
		v, ok := cache.iamPolicyDocsMap[policy]

		} else if strings.HasPrefix(policy.Key, "$x-amz-meta-") || strings.HasPrefix(policy.Key, "$x-amz-") {
			// This covers all conditions X-Amz-Meta-* and X-Amz-*
			// Check if policy condition is satisfied
			if !checkPolicyCond(op, formValues.Get(formCanonicalName), policy.Value) {
				return fmt.Errorf("Invalid according to Policy: Policy Condition failed: [%s, %s, %s]", op, policy.Key, policy.Value)
			}
		}
		delete(mustFindInPolicy, formCanonicalName)

		},
		{
			name:    "unknown key XAmzChecksumSHA1 is error as it does not appear in policy",
			fv:      defaultFormVals.Clone().Set(http.CanonicalHeaderKey(xhttp.AmzChecksumSHA1), "sha1-val"),
			wantErr: `Each form field that you specify in a form must appear in the list of policy conditions. "X-Amz-Checksum-Sha1" not specified in the policy.`,
		},
		{
			name:    "unknown key XAmzChecksumSHA256 is error as it does not appear in policy",

				return ErrNone
			}
		}

		return ErrAccessDenied
	}
	if action == policy.DeleteObjectAction && versionID != "" {
		if !globalIAMSys.IsAllowed(policy.Args{
			AccountName:     cred.AccessKey,
			Groups:          cred.Groups,
			Action:          policy.Action(policy.DeleteObjectVersionAction),
			BucketName:      bucket,
			ConditionValues: getConditionValues(r, "", cred),

```
mc admin group remove myminio newgroup
```

### 6. Change user or group policy

Change the policy for user `newuser` to `putonly` canned policy.

```
mc admin policy attach myminio putonly --user=newuser
```

Change the policy for group `newgroup` to `putonly` canned policy.

```
mc admin policy attach myminio putonly --group=newgroup
```

### 7. List all users or groups