【CAS-Server】CAS中webflow的execution产生
时间:2023-10-28 22:37:02
CAS中exection的key产生类
spring-webflow
在框架中,必须指定现有流程execution
才能正确返回flow
现在到哪里去Step
是的。所以参数execution
对于flow
它非常重要,类似于session
存在前端的cookie
中的session id
同样的信息,如果没有这个值,它只能重新打开一个新的flow
了。
spring-webflow
的execution
产生由FlowExecutionKeyFactory
界面定义CAS-Server
中重新定义execution
的产生算法.实现的具体原因org.apereo.cas.web.flow.executor.ClientFlowExecutionRepository
完成。execution
对应的实体接口FlowExecutionKey
。在CAS_Server
中采用ClientFlowExecutionKey
类。 toString
后续格式默认为
private static final String KEY_FORMAT = "_" ;
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dHdycjN6ZllaejQ1MnlXQ1Qyb1VuNldDZFlHSjRxUjhQbWNEeUJ6eDI3TVQ2UENtR3p0R2FGZmNmYS56ZUZpM25CNmJEc2FMRkcxNk94eVRLcGJpVWdzeVBCa3RRYk0zTVhONnhpNHlYNHE3LWRxaGwtbl93ZVBhVDNlTzNlbzVFZUV3dDZwMWNVdG4yZXM5dw==
Cas-Server是如何把这个配置进去的
CAS的配置类为CasWebflowContextConfiguration
,在该类中定义流程时会使用FlowExecutor
。
@RefreshScope
@Bean
@Lazy(false)
public FlowExecutor loginFlowExecutor() {
val factory = new WebflowExecutorFactory(casProperties.getWebflow(),
loginFlowRegistry(), this.webflowCipherExecutor.getObject(),
FLOW_EXECUTION_LISTENERS);
return factory.build();
}
在WebflowExecutorFactory
中的方法buildFlowExecutorViaClientFlowExecution
会使用到ClientFlowExecutionRepository
类。该类具有获取execution
key的功能.
@Override
public FlowExecutionKey getKey(final FlowExecution execution) {
try {
return new ClientFlowExecutionKey(
this.transcoder.encode(
new SerializedFlowExecutionState(execution)
)
);
} catch (final Exception e) {
throw new ClientFlowExecutionRepositoryException("Error encoding flow execution", e);
}
}
综上,这里面的几个关键类:
CasWebflowContextConfiguration
WebflowExecutorFactory
FlowExecutor
ClientFlowExecutionRepository
ClientFlowExecutionKey