68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
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package tunnel
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import (
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"io"
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"net"
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"net/http"
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"time"
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"github.com/Dreamacro/clash/adapters/local"
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C "github.com/Dreamacro/clash/constant"
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)
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func (t *Tunnel) handleHTTP(request *adapters.HttpAdapter, proxy C.ProxyAdapter) {
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req := http.Transport{
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Dial: func(string, string) (net.Conn, error) {
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conn := newTrafficTrack(proxy.Conn(), t.traffic)
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return conn, nil
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},
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// from http.DefaultTransport
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MaxIdleConns: 100,
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IdleConnTimeout: 90 * time.Second,
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ExpectContinueTimeout: 1 * time.Second,
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}
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resp, err := req.RoundTrip(request.R)
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if err != nil {
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return
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}
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defer resp.Body.Close()
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header := request.W.Header()
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for k, vv := range resp.Header {
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for _, v := range vv {
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header.Add(k, v)
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}
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}
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request.W.WriteHeader(resp.StatusCode)
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var writer io.Writer = request.W
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if len(resp.TransferEncoding) > 0 && resp.TransferEncoding[0] == "chunked" {
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writer = ChunkWriter{Writer: request.W}
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}
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io.Copy(writer, resp.Body)
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}
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func (t *Tunnel) handleHTTPS(request *adapters.HttpsAdapter, proxy C.ProxyAdapter) {
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conn := newTrafficTrack(proxy.Conn(), t.traffic)
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go io.Copy(request.Conn(), conn)
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io.Copy(conn, request.Conn())
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}
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func (t *Tunnel) handleSOCKS(request *adapters.SocksAdapter, proxy C.ProxyAdapter) {
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conn := newTrafficTrack(proxy.Conn(), t.traffic)
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go io.Copy(request.Conn(), conn)
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io.Copy(conn, request.Conn())
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}
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// ChunkWriter is a writer wrapper and used when TransferEncoding is chunked
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type ChunkWriter struct {
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io.Writer
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}
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func (cw ChunkWriter) Write(b []byte) (int, error) {
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n, err := cw.Writer.Write(b)
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if err == nil {
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cw.Writer.(http.Flusher).Flush()
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}
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return n, err
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}
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