/
server.go
82 lines (70 loc) · 1.94 KB
/
server.go
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package cybertunnel
import (
"context"
"github.com/yaklang/yaklang/common/cybertunnel/tpb"
"github.com/yaklang/yaklang/common/log"
"github.com/yaklang/yaklang/common/utils"
"sync"
"time"
)
var startTunnelServerOnceForRandomPort = new(sync.Once)
var startTunnelServerOnceForICMPLength = new(sync.Once)
var randomPortTrigger *RandomPortTrigger
var icmpTrigger *ICMPTrigger
type TunnelServer struct {
tpb.TunnelServer
ExternalIP string
// 二级密码是用来分别
SecondaryPassword string
}
func (s *TunnelServer) RequireDomain(ctx context.Context, params *tpb.RequireDomainParams) (*tpb.RequireDomainResponse, error) {
panic("implement me")
}
func (s *TunnelServer) QueryExistedDNSLog(ctx context.Context, params *tpb.QueryExistedDNSLogParams) (*tpb.QueryExistedDNSLogResponse, error) {
panic("implement me")
}
func (s *TunnelServer) InitialReverseTrigger() error {
if randomPortTrigger != nil {
return utils.Errorf("tunnel-server port-trigger started at mem:%p", randomPortTrigger)
}
var err error
randomPortTrigger, err = NewRandomPortTrigger()
if err != nil {
return utils.Errorf("create random port trigger failed: %s", err)
}
go startTunnelServerOnceForRandomPort.Do(func() {
for {
if randomPortTrigger != nil {
err := randomPortTrigger.Run()
if err != nil {
log.Errorf("start port trigger failed: %s", err)
}
} else {
log.Error("port trigger empty")
}
time.Sleep(1 * time.Second)
}
})
icmpTrigger, err = NewICMPTrigger()
if err != nil {
return utils.Errorf("create icmp length trigger failed: %s", err)
}
go startTunnelServerOnceForICMPLength.Do(func() {
for {
if icmpTrigger != nil {
err := icmpTrigger.Run()
if err != nil {
log.Errorf("start icmp trigger failed: %s", err)
} else {
log.Errorf("icmp length trigger empty")
}
time.Sleep(time.Second * 1)
}
}
})
return nil
}
func NewTunnelServer() (*TunnelServer, error) {
s := &TunnelServer{}
return s, nil
}