///

## Gesamtübersicht { #global-view }

Sehen wir uns zunächst kurz die Teile an, die sich gegenüber den Beispielen im Haupt-**Tutorial – Benutzerhandbuch** für [OAuth2 mit Password (und Hashing), Bearer mit JWT-Tokens](../../tutorial/security/oauth2-jwt.md){.internal-link target=_blank} ändern. Diesmal verwenden wir OAuth2-Scopes:

{* ../../docs_src/security/tutorial005_an_py310.py hl[5,9,13,47,65,106,108:116,122:126,130:136,141,157] *}

 *
 * <p>Supported languages are defined in the SUPPORTED_LANGUAGES array.</p>
 *
 * <p>Inner class:</p>
 * <ul>
 *   <li>DefaultContentsAnalyzer: Implements the SuggestAnalyzer interface to analyze text and retrieve tokens using
 *       the configured analyzers.</li>
 * </ul>
 *
 * <p>Protected static class:</p>
 * <ul>
 *   <li>FieldAnalyzerMapping: Holds the analyzer names for different types of analysis (reading, reading term,

	case "true", `"true"`: // true without double quotes is deprecated in Feb 2022
		if len(tokens) == 1 {
			return ongoingRestoreObj(), nil
		}
	case "false", `"false"`: // false without double quotes is deprecated in Feb 2022
		if len(tokens) != 2 {
			return restoreObjStatus{}, errRestoreHDRMalformed
		}
		expiryTokens := strings.SplitN(tokens[1], "=", 2)
		if len(expiryTokens) != 2 {

 */
package org.codelibs.core.text;

import static org.codelibs.core.misc.AssertionUtil.assertArgumentNotEmpty;
import static org.codelibs.core.misc.AssertionUtil.assertArgumentNotNull;

/**
 * A class that recognizes tokens.
 *
 * @author higa
 *
 */
public class Tokenizer {

    /**
     * Represents EOF (End of File).
     */
    public static final int TT_EOF = -1;

    /**
     * Represents a Quote.

time="2020-07-12T20:45:50Z" level=info msg="config using password grant connector: local"
time="2020-07-12T20:45:50Z" level=info msg="config signing keys expire after: 3h0m0s"
time="2020-07-12T20:45:50Z" level=info msg="config id tokens valid for: 3h0m0s"
time="2020-07-12T20:45:50Z" level=info msg="listening (http) on 0.0.0.0:5556"
```

### Configure MinIO server with Dex

```
~ export MINIO_IDENTITY_OPENID_CLAIM_NAME=name

/// tip | Подсказка
В следующей главе вы увидите реальную защищённую реализацию с хешированием паролей и токенами <abbr title="JSON Web Tokens – JSON веб-токены">JWT</abbr>.

Но пока давайте сосредоточимся на необходимых нам деталях.
///

{* ../../docs_src/security/tutorial003_an_py310.py hl[87] *}

/// tip | Подсказка

	response.Metadata.RequestID = w.Header().Get(xhttp.AmzRequestID)
	writeSuccessResponseXML(w, encodeResponse(response))
}

// AssumeRoleWithCustomToken implements user authentication with custom tokens.
// These tokens are opaque to MinIO and are verified by a configured (external)
// Identity Management Plugin.
//
// API endpoint: https://minio:9000?Action=AssumeRoleWithCustomToken&Token=xxx

     * Used to convert validation messages to localized text for API responses.
     */
    @Resource
    protected MessageManager messageManager;

    /**
     * Service for managing API access tokens including validation and authentication.
     * Used to verify token-based authentication for API requests.
     */
    @Resource
    protected AccessTokenService accessTokenService;

    /**

# OAuth2 实现密码哈希与 Bearer  JWT 令牌验证

至此，我们已经编写了所有安全流，本章学习如何使用 <abbr title="JSON Web Tokens">JWT</abbr> 令牌（Token）和安全密码哈希（Hash）实现真正的安全机制。

本章的示例代码真正实现了在应用的数据库中保存哈希密码等功能。

接下来，我们紧接上一章，继续完善安全机制。

## JWT 简介

JWT 即**JSON 网络令牌**（JSON Web Tokens）。

JWT 是一种将 JSON 对象编码为没有空格，且难以理解的长字符串的标准。JWT 的内容如下所示：

```

	}
}

// lines joins the arguments together as complete lines.
func lines(a ...string) string {
	return strings.Join(a, "\n") + "\n"
}

// drain returns a single string representing the processed input tokens.
func drain(input *Input) string {
	var buf strings.Builder
	for {
		tok := input.Next()
		if tok == scanner.EOF {
			return buf.String()
		}
		if tok == '#' {
			continue
		}