[ Cmii ] [ Octopus ] - add all image tag back up; add socks5 proxy

socks5_txthinking/connect.go

@@ -0,0 +1,53 @@
+package socks5
+
+import (
+	"io"
+	"log"
+	"net"
+)
+
+// Connect remote conn which u want to connect with your dialer
+// Error or OK both replied.
+func (r *Request) Connect(w io.Writer) (net.Conn, error) {
+	if Debug {
+		log.Println("Call:", r.Address())
+	}
+	rc, err := DialTCP("tcp", "", r.Address())
+	if err != nil {
+		var p *Reply
+		if r.Atyp == ATYPIPv4 || r.Atyp == ATYPDomain {
+			p = NewReply(RepHostUnreachable, ATYPIPv4, []byte{0x00, 0x00, 0x00, 0x00}, []byte{0x00, 0x00})
+		} else {
+			p = NewReply(RepHostUnreachable, ATYPIPv6, []byte(net.IPv6zero), []byte{0x00, 0x00})
+		}
+		if _, err := p.WriteTo(w); err != nil {
+			return nil, err
+		}
+		return nil, err
+	}
+
+	a, addr, port, err := ParseAddress(rc.LocalAddr().String())
+	if err != nil {
+		rc.Close()
+		var p *Reply
+		if r.Atyp == ATYPIPv4 || r.Atyp == ATYPDomain {
+			p = NewReply(RepHostUnreachable, ATYPIPv4, []byte{0x00, 0x00, 0x00, 0x00}, []byte{0x00, 0x00})
+		} else {
+			p = NewReply(RepHostUnreachable, ATYPIPv6, []byte(net.IPv6zero), []byte{0x00, 0x00})
+		}
+		if _, err := p.WriteTo(w); err != nil {
+			return nil, err
+		}
+		return nil, err
+	}
+	if a == ATYPDomain {
+		addr = addr[1:]
+	}
+	p := NewReply(RepSuccess, a, addr, port)
+	if _, err := p.WriteTo(w); err != nil {
+		rc.Close()
+		return nil, err
+	}
+
+	return rc, nil
+}