return
	}

	dnList := r.Form["userDNs"]
	isAll := r.Form.Get("all") == "true"
	selfOnly := !isAll && len(dnList) == 0

	if isAll && len(dnList) > 0 {
		// This should be checked on client side, so return generic error
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
		return
	}

	// Empty DN list and not self, list access keys for all users
	if isAll {

	if s3Err != ErrNone {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
		return
	}

	users := r.Form["users"]
	isAll := r.Form.Get("all") == "true"
	selfOnly := !isAll && len(users) == 0

	if isAll && len(users) > 0 {
		// This should be checked on client side, so return generic error
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)

 * up the build process by avoiding unnecessary downloads.</p>
 *
 * <p>By default, the local repository is located in the {@code .m2/repository}
 * directory within the user's home directory ({@code ~/.m2/repository} on
 * Unix-like systems or {@code C:\Users\YourName\.m2\repository} on Windows).
 * The location of the local repository can be customized in the
 * {@code settings.xml} file.</p>
 *
 * @since 4.0.0
 * @see Repository

After authenticating in the system, you will see it like:

<img src="/img/tutorial/security/image05.png">

### Get your own user data

Now use the operation `GET` with the path `/users/me`.

You will get your user's data, like:

```JSON
{
  "username": "johndoe",
  "email": "******@****.***",
  "full_name": "John Doe",
  "disabled": false,
  "hashed_password": "fakehashedsecret"
}
```

So, let's review it from that simplified point of view:

* The user types the `username` and `password` in the frontend, and hits `Enter`.
* The frontend (running in the user's browser) sends that `username` and `password` to a specific URL in our API (declared with `tokenUrl="token"`).
* The API checks that `username` and `password`, and responds with a "token" (we haven't implemented any of this yet).

					return true
				}
			}
			if pset.Contains(policy) {
				users = append(users, u)
			}
			return true
		})
		cache.iamGroupPolicyMap.Range(func(g string, mp MappedPolicy) bool {
			pset := mp.policySet()
			if pset.Contains(policy) {
				groups = append(groups, g)
			}
			return true
		})
		if len(users) != 0 || len(groups) != 0 {
			return errPolicyInUse
		}

But you cannot convert from the gibberish back to the password.

### Why use password hashing

If your database is stolen, the thief won't have your users' plaintext passwords, only the hashes.

So, the thief won't be able to try to use that password in another system (as many users use the same password everywhere, this would be dangerous).

## Install `passlib`

PassLib is a great Python package to handle password hashes.

}

func (iamOS *IAMObjectStore) loadUserConcurrent(ctx context.Context, userType IAMUserType, users ...string) ([]UserIdentity, error) {
	userIdentities := make([]UserIdentity, len(users))
	g := errgroup.WithNErrs(len(users))

	for index := range users {
		index := index
		g.Go(func() error {
			userName := path.Dir(users[index])
			user, err := iamOS.loadUserIdentity(ctx, userName, userType)

	"golang.org/x/sync/singleflight"
)

// UsersSysType - defines the type of users and groups system that is
// active on the server.
type UsersSysType string

// Types of users configured in the server.
const (
	// This mode uses the internal users system in MinIO.
	MinIOUsersSysType UsersSysType = "MinIOUsersSys"

	// This mode uses users and groups from a configured LDAP
	// server.

	}{
		{"format.json", false, "format.json", ""},
		{"users/tester.json", false, "users/", "tester.json"},
		{"groups/test/group.json", false, "groups/", "test/group.json"},
		{"policydb/groups/testgroup.json", true, "policydb/groups/", "testgroup.json"},
		{
			"policydb/sts-users/uid=slash/user,ou=people,ou=swengg,dc=min,dc=io.json", true,
			"policydb/sts-users/", "uid=slash/user,ou=people,ou=swengg,dc=min,dc=io.json",
		},
		{