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Remove WebRTCPeer.activeTransportMode.

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Make "u" mode the assumed default. The WebRTC data channel protocol
contains just the hex clientID.
This commit is contained in:
David Fifield 2024-08-02 02:58:59 +00:00 • committed by WofWca
parent 568a0999d2
commit 490502691d
3 changed files with 13 additions and 82 deletions
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49
server/lib/http.go
View file

@ -2,7 +2,6 @@ package snowflake_server
import (
"bufio"
"bytes"
"crypto/hmac"
"crypto/rand"
"crypto/sha256"
@ -13,7 +12,6 @@ import (
"log"
"net"
"net/http"
"strings"
"sync"
"time"
@ -112,45 +110,8 @@ func (handler *httpHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
addr := clientAddr(clientIPParam)
protocol := r.URL.Query().Get("protocol")
clientTransport := "t"
if protocol != "" {
clientTransport = fmt.Sprintf("%c", protocol[0])
}
if clientTransport == "u" {
err = handler.turboTunnelUDPLikeMode(conn, addr, protocol)
if err != nil && err != io.EOF {
log.Println(err)
return
}
return
}
var token [len(turbotunnel.Token)]byte
_, err = io.ReadFull(conn, token[:])
if err != nil {
// Don't bother logging EOF: that happens with an unused
// connection, which clients make frequently as they maintain a
// pool of proxies.
if err != io.EOF {
log.Printf("reading token: %v", err)
}
return
}
switch {
case bytes.Equal(token[:], turbotunnel.Token[:]):
err = handler.turbotunnelMode(conn, addr)
default:
// We didn't find a matching token, which means that we are
// dealing with a client that doesn't know about such things.
// Close the conn as we no longer support the old
// one-session-per-WebSocket mode.
log.Println("Received unsupported oneshot connection")
return
}
if err != nil {
err = handler.turboTunnelUDPLikeMode(conn, addr, protocol)
if err != nil && err != io.EOF {
log.Println(err)
return
}
@ -243,11 +204,7 @@ func (handler *httpHandler) turboTunnelUDPLikeMode(conn net.Conn, addr net.Addr,
var packet [1600]byte
clientID := turbotunnel.ClientID{}
compoments := strings.Split(protocol, " ")
if len(compoments) != 2 {
return fmt.Errorf("invalid protocol: %s", protocol)
}
_, err := hex.Decode(clientID[:], []byte(compoments[1]))
_, err := hex.Decode(clientID[:], []byte(protocol))
if err != nil {
return fmt.Errorf("reading ClientID: %v", err)
}