2021-12-29 17:08:30 +00:00
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package proxy
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import (
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"os"
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2022-01-03 07:24:39 +00:00
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2022-01-11 15:05:16 +00:00
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log "github.com/sirupsen/logrus"
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2022-01-10 14:41:31 +00:00
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"github.com/xvzc/SpoofDPI/doh"
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2022-01-10 17:11:30 +00:00
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"github.com/xvzc/SpoofDPI/net"
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2022-01-08 06:35:32 +00:00
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"github.com/xvzc/SpoofDPI/packet"
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2021-12-29 17:08:30 +00:00
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)
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2022-01-08 15:48:19 +00:00
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type Proxy struct {
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Port string
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}
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2022-01-10 15:14:51 +00:00
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func New(port string) *Proxy {
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2022-01-08 15:48:19 +00:00
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return &Proxy{
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Port: port,
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}
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}
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func (p *Proxy) Start() {
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2022-01-10 19:27:12 +00:00
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l, err := net.Listen("tcp", ":"+p.Port)
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2021-12-29 17:08:30 +00:00
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if err != nil {
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2022-01-04 16:47:18 +00:00
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log.Fatal("Error creating listener: ", err)
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os.Exit(1)
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2021-12-29 17:08:30 +00:00
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}
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2022-01-11 15:05:16 +00:00
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log.Println("Created a listener on :", p.Port)
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2021-12-29 17:08:30 +00:00
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2022-01-04 16:47:18 +00:00
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for {
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2022-01-10 19:27:12 +00:00
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conn, err := l.Accept()
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2021-12-29 17:08:30 +00:00
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if err != nil {
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2022-01-04 16:47:18 +00:00
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log.Fatal("Error accepting connection: ", err)
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2021-12-29 17:08:30 +00:00
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continue
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}
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2022-01-11 15:05:16 +00:00
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log.Debug("Accepted a new connection.", conn.RemoteAddr())
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2021-12-29 17:08:30 +00:00
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2022-01-04 16:47:18 +00:00
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go func() {
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2022-01-10 19:27:12 +00:00
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defer conn.Close()
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2021-12-29 17:08:30 +00:00
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2022-01-10 19:27:12 +00:00
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b, err := conn.ReadBytes()
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2022-01-04 16:47:18 +00:00
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if err != nil {
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return
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}
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2022-01-11 15:05:16 +00:00
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log.Debug("Client sent data: ", len(b))
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2021-12-29 17:08:30 +00:00
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2022-01-10 19:27:12 +00:00
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r := packet.NewHttpPacket(b)
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2022-01-11 15:05:16 +00:00
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log.Debug("New request: \n\n" + string(r.Raw))
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2022-01-07 15:39:58 +00:00
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2022-01-07 17:41:02 +00:00
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if !r.IsValidMethod() {
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log.Println("Unsupported method: ", r.Method)
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2022-01-07 14:04:09 +00:00
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return
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}
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2022-01-07 17:41:02 +00:00
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// Dns lookup over https
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ip, err := doh.Lookup(r.Domain)
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2022-01-04 16:47:18 +00:00
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if err != nil {
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log.Println("Error looking up dns: "+r.Domain, err)
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return
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}
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log.Debug("ip: " + ip)
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2022-01-08 06:35:32 +00:00
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if r.IsConnectMethod() {
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log.Debug("HTTPS Requested")
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HandleHttps(conn, ip, &r)
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} else {
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log.Debug("HTTP Requested.")
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HandleHttp(conn, ip, &r)
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}
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}()
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}
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}
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