func Match()

in proxy/pkg/egress/egress.go [62:106]
41 lines of code
12 McCabe index (conditional complexity)

func Match(hostname string) (bool, *control.EgressConfig) {
	var EgressRules []control.EgressConfig
	if meshercontrol.DefaultPanelEgress != nil {
		EgressRules = meshercontrol.DefaultPanelEgress.GetEgressRule()
	} else {
		mapEgressRules := DefaultEgress.FetchEgressRule()
		for _, value := range mapEgressRules {
			for _, rule := range value {
				var Ports []*control.EgressPort
				for _, port := range rule.Ports {
					p := control.EgressPort{
						Port:     (*port).Port,
						Protocol: (*port).Protocol,
					}
					Ports = append(Ports, &p)
				}
				c := control.EgressConfig{
					Hosts: rule.Hosts,
					Ports: Ports,
				}
				EgressRules = append(EgressRules, c)
			}
		}
	}

	for _, egress := range EgressRules {

		for _, host := range egress.Hosts {
			// Check host length greater than 0 and does not
			// start with *
			if len(host) > 0 && string(host[0]) != "*" {
				if host == hostname {
					return true, &egress
				}
			} else if string(host[0]) == "*" {
				substring := host[1:]
				match, _ := regexp.MatchString(substring+"$", hostname)
				if match {
					return true, &egress
				}
			}
		}
	}
	return false, nil
}