43 lines
986 B
Go
43 lines
986 B
Go
// Copyright (C) 2017 Michał Matczuk
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package tunnel
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import (
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"io"
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"github.com/mmatczuk/go-http-tunnel/proto"
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)
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// ProxyFunc is responsible for forwarding a remote connection to local server
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// and writing the response.
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type ProxyFunc func(w io.Writer, r io.ReadCloser, msg *proto.ControlMessage)
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// ProxyFuncs is a collection of ProxyFunc.
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type ProxyFuncs struct {
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// HTTP is custom implementation of HTTP proxing.
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HTTP ProxyFunc
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// TCP is custom implementation of TCP proxing.
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TCP ProxyFunc
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}
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// Proxy returns a ProxyFunc that uses custom function if provided.
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func Proxy(p ProxyFuncs) ProxyFunc {
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return func(w io.Writer, r io.ReadCloser, msg *proto.ControlMessage) {
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var f ProxyFunc
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switch msg.Protocol {
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case proto.HTTP:
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f = p.HTTP
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case proto.TCP, proto.TCP4, proto.TCP6, proto.UNIX:
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f = p.TCP
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}
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if f == nil {
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return
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}
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f(w, r, msg)
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}
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}
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