}

    /**
     * Encodes this SPNEGO token to a byte array
     * @return the encoded token bytes
     */
    public abstract byte[] toByteArray();

    /**
     * Parses the provided token bytes to populate this SPNEGO token
     * @param token the token bytes to parse
     * @throws IOException if parsing fails
     */
    protected abstract void parse(byte[] token) throws IOException;

///

## Token’ı Döndürme { #return-the-token }

`token` endpoint’inin response’u bir JSON object olmalıdır.

Bir `token_type` içermelidir. Biz "Bearer" token’ları kullandığımız için token type "`bearer`" olmalıdır.

Ayrıca `access_token` içermelidir; bunun değeri access token’ımızı içeren bir string olmalıdır.

Bu basit örnekte tamamen güvensiz davranıp token olarak aynı `username`’i döndüreceğiz.

/// tip | İpucu

	args.QuoteEscapeCharacter = defaultQuoteEscapeCharacter
	args.CommentCharacter = defaultCommentCharacter
	args.AllowQuotedRecordDelimiter = false

	for {
		// Read tokens from the XML document in a stream.
		t, err := d.Token()
		if err != nil {
			if err == io.EOF {
				break
			}
			return err
		}

		if se, ok := t.(xml.StartElement); ok {
			tagName := se.Name.Local
			switch tagName {

/// info | Інформація

Для повнішого пояснення `**user_dict` перегляньте [документацію для **Додаткових моделей**](../extra-models.md#about-user-in-dict).

///

## Поверніть токен { #return-the-token }

Відповідь точки входу `token` має бути об'єктом JSON.

Вона повинна містити `token_type`. У нашому випадку, оскільки ми використовуємо токени «Bearer», тип токена має бути «`bearer`».

    /**
     * The role for this action.
     */
    public static final String ROLE = "admin-accesstoken";

    /**
     * The token parameter.
     */
    public static final String TOKEN = "token";

    /**
     * The expires parameter.
     */
    public static final String EXPIRES = "expires";

    /**
     * The expired time parameter.
     */

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package gradlebuild.docs.dsl.docbook;

public interface JavadocLexer {
    /**
     * Visits the tokens in the input stream for this lexer. Reads to the end of the input.
     */
    void visit(TokenVisitor visitor);

    class TokenVisitor {
        void onStartHtmlElement(String name) {
        }

        String lang = "en";

        List<AnalyzeToken> tokens = analyzer.analyze(text, field, lang);

        assertNotNull(tokens);
        assertEquals(5, tokens.size());
        assertEquals("test", tokens.get(0).getTerm());
        assertEquals("example", tokens.get(1).getTerm());
        assertEquals("com", tokens.get(2).getTerm());
        assertEquals("hashtag", tokens.get(3).getTerm());

	if err != nil {
		return err
	}

	// Verify if the authToken already contains
	// <Key> <Token> like format, if this is
	// already present we can blindly use the
	// authToken as is instead of adding 'Bearer'
	tokens := strings.Fields(target.args.AuthToken)
	switch len(tokens) {
	case 2:
		req.Header.Set("Authorization", target.args.AuthToken)
	case 1:

# 使用密碼（與雜湊）的 OAuth2、以 Bearer 搭配 JWT 權杖 { #oauth2-with-password-and-hashing-bearer-with-jwt-tokens }

現在我們已經有完整的安全流程了，接下來用 <abbr title="JSON Web Tokens - JSON 網路權杖">JWT</abbr> 權杖與安全的密碼雜湊，讓應用真正安全。

這份程式碼可以直接用在你的應用中，把密碼雜湊存進資料庫等等。

我們會從上一章的內容繼續往下擴充。

## 關於 JWT { #about-jwt }

JWT 的意思是「JSON Web Tokens」。

它是一種把 JSON 物件編碼成一段長且緊密（沒有空白）的字串的標準。看起來像這樣：

```

    print('body: ' + id_token_response.text)

    # we can now use the id_token as much as we want to access protected resources.
    tokens = json.loads(id_token_response.text)
    id_token = tokens['id_token']

    response = sts_client.assume_role_with_web_identity(
        RoleArn='arn:aws:iam::123456789012:user/svc-internal-api',
        RoleSessionName='test',