spring-authorization-server OAuth2RefreshTokenGenerator 源码
spring-authorization-server OAuth2RefreshTokenGenerator 代码
文件路径：/oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/token/OAuth2RefreshTokenGenerator.java
/*
* Copyright 2020-2022 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.security.oauth2.server.authorization.token;
import java.time.Instant;
import java.util.Base64;
import org.springframework.lang.Nullable;
import org.springframework.security.crypto.keygen.Base64StringKeyGenerator;
import org.springframework.security.crypto.keygen.StringKeyGenerator;
import org.springframework.security.oauth2.core.OAuth2RefreshToken;
import org.springframework.security.oauth2.server.authorization.OAuth2TokenType;
/**
* An {@link OAuth2TokenGenerator} that generates an {@link OAuth2RefreshToken}.
*
* @author Joe Grandja
* @since 0.2.3
* @see OAuth2TokenGenerator
* @see OAuth2RefreshToken
*/
public final class OAuth2RefreshTokenGenerator implements OAuth2TokenGenerator<OAuth2RefreshToken> {
private final StringKeyGenerator refreshTokenGenerator =
new Base64StringKeyGenerator(Base64.getUrlEncoder().withoutPadding(), 96);
@Nullable
@Override
public OAuth2RefreshToken generate(OAuth2TokenContext context) {
if (!OAuth2TokenType.REFRESH_TOKEN.equals(context.getTokenType())) {
return null;
}
Instant issuedAt = Instant.now();
Instant expiresAt = issuedAt.plus(context.getRegisteredClient().getTokenSettings().getRefreshTokenTimeToLive());
return new OAuth2RefreshToken(this.refreshTokenGenerator.generateKey(), issuedAt, expiresAt);
}
}
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