sigfilter.go

sigfilter.go

签名过滤器的实现

// SigFilterSupport provides the resources required for the signature filter
type SigFilterSupport interface {
    // PolicyManager returns a reference to the current policy manager
    PolicyManager() policies.Manager
}

// SigFilter stores the name of the policy to apply to deliver requests to
// determine whether a client is authorized
type SigFilter struct {
    policyName string
    support    SigFilterSupport
}

NewSigFilter创建一个签名过滤器实例。

Apply

• 取出过滤器的过滤策略policy

• 使用策略来评估消息是否符合策略，返回拒绝、转发、永不接收。