import (
	"unicode/utf8"
)

var IsSpace = isSpace

const DefaultBufSize = defaultBufSize

func (s *Scanner) MaxTokenSize(n int) {
	if n < utf8.UTFMax || n > 1e9 {
		panic("bad max token size")
	}
	if n < len(s.buf) {
		s.buf = make([]byte, n)
	}
	s.maxTokenSize = n
}

// ErrOrEOF is like Err, but returns EOF. Used to test a corner case.
func (s *Scanner) ErrOrEOF() error {
	return s.err

	minValidityDurationSeconds int = 900
	maxValidityDurationSeconds int = 365 * 24 * 3600
)

// Authenticate authenticates the token with the external hook endpoint and
// returns a parent user, max expiry duration for the authentication and a set
// of claims.
func (o *AuthNPlugin) Authenticate(roleArn arn.ARN, token string) (AuthNResponse, error) {
	if o == nil {
		return AuthNResponse{}, nil
	}

	if roleArn != o.args.RoleARN {

    public KerberosTicket ( byte[] token, byte apOptions, KerberosKey[] keys ) throws PACDecodingException {
        if ( token.length <= 0 )
            throw new PACDecodingException("Empty kerberos ticket");

        ASN1Sequence sequence;
        try {
            try ( ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token)) ) {
                sequence = ASN1Util.as(ASN1Sequence.class, stream);

{
    "properties": {
      "name": {
        "type": "keyword"
      },
      "token": {
        "type": "keyword"
      },
      "permissions": {
        "type": "keyword"
      },
      "parameter_name" : {
        "type": "keyword"
      },
      "expiredTime": {
        "type": "long"
      },
      "createdBy": {
        "type": "keyword"
      },
      "createdTime": {
        "type": "long"
      },

from typing import Annotated

from fastapi import FastAPI, Header

app = FastAPI()


@app.get("/items/")
async def read_items(x_token: Annotated[list[str] | None, Header()] = None):

# Punctuation tokens to remove
,
.
`
-
_
=
?
'
|
"
(
)
{
}
[
]
<
>
*
#
&
^
$
@
!
~
:
;
+
/
\
《
》
—
－
，
。
、
：
；
！
·
？
“
”
）
（
【
】
［
］
●
# the line below contains an IDEOGRAPHIC SPACE character (Used as a space in Chinese)
　

# English Stop Words

  release:
    types:
      - created

jobs:
  publish:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        package:
          - fastapi
          - fastapi-slim
    permissions:
      id-token: write
    steps:
      - name: Dump GitHub context
        env:
          GITHUB_CONTEXT: ${{ toJson(github) }}
        run: echo "$GITHUB_CONTEXT"
      - uses: actions/checkout@v4
      - name: Set up Python

				err = ParseWithStandardClaims(data.tokenString, &StandardClaims{}, []byte("HelloSecret"))
			}

			if data.valid && err != nil {
				t.Errorf("Error while verifying token: %T:%v", err, err)
			}

			if !data.valid && err == nil {
				t.Errorf("Invalid token passed validation")
			}

			if data.errors != 0 {
				_, ok := err.(*jwt.ValidationError)
				if !ok {

# Get Current User

In the previous chapter the security system (which is based on the dependency injection system) was giving the *path operation function* a `token` as a `str`:

//// tab | Python 3.9+

```Python hl_lines="12"
{!> ../../docs_src/security/tutorial001_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="11"
{!> ../../docs_src/security/tutorial001_an.py!}
```

////

> - [**AD/LDAP**](https://github.com/minio/minio/blob/master/docs/sts/ldap.md)