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Golang ResponseWriter.Hijack方法代码示例

本文整理汇总了Golang中github.com/miekg/dns.ResponseWriter.Hijack方法的典型用法代码示例。如果您正苦于以下问题:Golang ResponseWriter.Hijack方法的具体用法?Golang ResponseWriter.Hijack怎么用?Golang ResponseWriter.Hijack使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/miekg/dns.ResponseWriter的用法示例。

在下文中一共展示了ResponseWriter.Hijack方法的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: ServeDNS

// Serve an AXFR (and fallback of IXFR) as well.
func (x Xfr) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
	state := middleware.State{W: w, Req: r}
	if !x.TransferAllowed(state) {
		return dns.RcodeServerFailure, nil
	}
	if state.QType() != dns.TypeAXFR && state.QType() != dns.TypeIXFR {
		return 0, fmt.Errorf("xfr called with non transfer type: %d", state.QType())
	}

	records := x.All()
	if len(records) == 0 {
		return dns.RcodeServerFailure, nil
	}

	ch := make(chan *dns.Envelope)
	defer close(ch)
	tr := new(dns.Transfer)
	go tr.Out(w, r, ch)

	j, l := 0, 0
	records = append(records, records[0]) // add closing SOA to the end
	log.Printf("[INFO] Outgoing transfer of %d records of zone %s to %s started", len(records), x.origin, state.IP())
	for i, r := range records {
		l += dns.Len(r)
		if l > transferLength {
			ch <- &dns.Envelope{RR: records[j:i]}
			l = 0
			j = i
		}
	}
	if j < len(records) {
		ch <- &dns.Envelope{RR: records[j:]}
	}

	w.Hijack()
	// w.Close() // Client closes connection
	return dns.RcodeSuccess, nil
}
开发者ID:yuewko,项目名称:coredns,代码行数:39,代码来源:xfr.go


示例2: handleReflect

func handleReflect(w dns.ResponseWriter, r *dns.Msg) {
	var (
		v4  bool
		rr  dns.RR
		str string
		a   net.IP
	)
	// TC must be done here
	m := new(dns.Msg)
	m.SetReply(r)
	m.Compress = *compress
	if ip, ok := w.RemoteAddr().(*net.UDPAddr); ok {
		str = "Port: " + strconv.Itoa(ip.Port) + " (udp)"
		a = ip.IP
		v4 = a.To4() != nil
	}
	if ip, ok := w.RemoteAddr().(*net.TCPAddr); ok {
		str = "Port: " + strconv.Itoa(ip.Port) + " (tcp)"
		a = ip.IP
		v4 = a.To4() != nil
	}

	if v4 {
		rr = new(dns.RR_A)
		rr.(*dns.RR_A).Hdr = dns.RR_Header{Name: dom, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: 0}
		rr.(*dns.RR_A).A = a.To4()
	} else {
		rr = new(dns.RR_AAAA)
		rr.(*dns.RR_AAAA).Hdr = dns.RR_Header{Name: dom, Rrtype: dns.TypeAAAA, Class: dns.ClassINET, Ttl: 0}
		rr.(*dns.RR_AAAA).AAAA = a
	}

	t := new(dns.RR_TXT)
	t.Hdr = dns.RR_Header{Name: dom, Rrtype: dns.TypeTXT, Class: dns.ClassINET, Ttl: 0}
	t.Txt = []string{str}

	switch r.Question[0].Qtype {
	case dns.TypeAXFR:
		c := make(chan *dns.XfrToken)
		var e *error
		if err := dns.XfrSend(w, r, c, e); err != nil {
			close(c)
			return
		}
		soa, _ := dns.NewRR(`whoami.miek.nl. IN SOA elektron.atoom.net. miekg.atoom.net. (
			2009032802 
			21600 
			7200 
			604800 
			3600)`)
		c <- &dns.XfrToken{RR: []dns.RR{soa, t, rr, soa}}
		close(c)
		w.Hijack()
		// w.Close() // Client closes
		return
	case dns.TypeTXT:
		m.Answer = append(m.Answer, t)
		m.Extra = append(m.Extra, rr)
	default:
		fallthrough
	case dns.TypeAAAA, dns.TypeA:
		m.Answer = append(m.Answer, rr)
		m.Extra = append(m.Extra, t)
	}

	if r.IsTsig() != nil {
		if w.TsigStatus() == nil {
			m.SetTsig(r.Extra[len(r.Extra)-1].(*dns.RR_TSIG).Hdr.Name, dns.HmacMD5, 300, time.Now().Unix())
		} else {
			println("Status", w.TsigStatus().Error())
		}
	}
	if *printf {
		fmt.Printf("%v\n", m.String())
	}
	w.Write(m)
}
开发者ID:silverjava,项目名称:dns,代码行数:77,代码来源:reflect.go


示例3: ServeDNS

// ServeDNS will be called for every DNS request to this server.
// It will attempt to provide answers to all questions from the configured zone.
func (s *Server) ServeDNS(w dns.ResponseWriter, request *dns.Msg) {
	// Call `Hijack` since we will handle closing `dns.ResponseWriter` ourselves
	w.Hijack()
	// Handle the request
	go s.handle(w, request)
}
开发者ID:brettlangdon,项目名称:realm,代码行数:8,代码来源:server.go


示例4: handleReflect

func handleReflect(w dns.ResponseWriter, r *dns.Msg) {
	reflectHandled += 1
	if reflectHandled%1000 == 0 {
		fmt.Printf("Served %d reflections\n", reflectHandled)
	}
	var (
		v4  bool
		rr  dns.RR
		str string
		a   net.IP
	)
	m := new(dns.Msg)
	m.SetReply(r)
	m.Compress = *compress
	if ip, ok := w.RemoteAddr().(*net.UDPAddr); ok {
		str = "Port: " + strconv.Itoa(ip.Port) + " (udp)"
		a = ip.IP
		v4 = a.To4() != nil
	}
	if ip, ok := w.RemoteAddr().(*net.TCPAddr); ok {
		str = "Port: " + strconv.Itoa(ip.Port) + " (tcp)"
		a = ip.IP
		v4 = a.To4() != nil
	}

	if v4 {
		rr = new(dns.A)
		rr.(*dns.A).Hdr = dns.RR_Header{Name: dom, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: 0}
		rr.(*dns.A).A = a.To4()
	} else {
		rr = new(dns.AAAA)
		rr.(*dns.AAAA).Hdr = dns.RR_Header{Name: dom, Rrtype: dns.TypeAAAA, Class: dns.ClassINET, Ttl: 0}
		rr.(*dns.AAAA).AAAA = a
	}

	t := new(dns.TXT)
	t.Hdr = dns.RR_Header{Name: dom, Rrtype: dns.TypeTXT, Class: dns.ClassINET, Ttl: 0}
	t.Txt = []string{str}

	switch r.Question[0].Qtype {
	case dns.TypeTXT:
		m.Answer = append(m.Answer, t)
		m.Extra = append(m.Extra, rr)
	default:
		fallthrough
	case dns.TypeAAAA, dns.TypeA:
		m.Answer = append(m.Answer, rr)
		m.Extra = append(m.Extra, t)

	case dns.TypeAXFR, dns.TypeIXFR:
		c := make(chan *dns.Envelope)
		tr := new(dns.Transfer)
		defer close(c)
		err := tr.Out(w, r, c)
		if err != nil {
			return
		}
		soa, _ := dns.NewRR(`whoami.miek.nl. 0 IN SOA linode.atoom.net. miek.miek.nl. 2009032802 21600 7200 604800 3600`)
		c <- &dns.Envelope{RR: []dns.RR{soa, t, rr, soa}}
		w.Hijack()
		// w.Close() // Client closes connection
		return

	}

	if r.IsTsig() != nil {
		if w.TsigStatus() == nil {
			m.SetTsig(r.Extra[len(r.Extra)-1].(*dns.TSIG).Hdr.Name, dns.HmacMD5, 300, time.Now().Unix())
		} else {
			println("Status", w.TsigStatus().Error())
		}
	}
	if *printf {
		fmt.Printf("%v\n", m.String())
	}
	// set TC when question is tc.miek.nl.
	if m.Question[0].Name == "tc.miek.nl." {
		m.Truncated = true
		// send half a message
		buf, _ := m.Pack()
		w.Write(buf[:len(buf)/2])
		return
	}
	w.WriteMsg(m)
}
开发者ID:hobbeswalsh,项目名称:GolangStuffs,代码行数:85,代码来源:reflect.go



注:本文中的github.com/miekg/dns.ResponseWriter.Hijack方法示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。