61 lines
1.2 KiB
Go
61 lines
1.2 KiB
Go
package http
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import (
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"net"
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"net/http"
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"strings"
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"github.com/Dreamacro/clash/adapter/inbound"
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N "github.com/Dreamacro/clash/common/net"
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C "github.com/Dreamacro/clash/constant"
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"github.com/Dreamacro/clash/transport/socks5"
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)
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func isUpgradeRequest(req *http.Request) bool {
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return strings.EqualFold(req.Header.Get("Connection"), "Upgrade")
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}
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func handleUpgrade(conn net.Conn, request *http.Request, in chan<- C.ConnContext) {
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defer conn.Close()
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removeProxyHeaders(request.Header)
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removeExtraHTTPHostPort(request)
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address := request.Host
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if _, _, err := net.SplitHostPort(address); err != nil {
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address = net.JoinHostPort(address, "80")
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}
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dstAddr := socks5.ParseAddr(address)
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if dstAddr == nil {
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return
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}
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left, right := net.Pipe()
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in <- inbound.NewHTTP(dstAddr, conn.RemoteAddr(), right)
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bufferedLeft := N.NewBufferedConn(left)
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defer bufferedLeft.Close()
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err := request.Write(bufferedLeft)
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if err != nil {
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return
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}
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resp, err := http.ReadResponse(bufferedLeft.Reader(), request)
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if err != nil {
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return
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}
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removeProxyHeaders(resp.Header)
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err = resp.Write(conn)
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if err != nil {
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return
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}
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if resp.StatusCode == http.StatusSwitchingProtocols {
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N.Relay(bufferedLeft, conn)
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}
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}
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