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Add SNI shunt support for VLESS (#141)

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eMeab 2021-01-13 23:13:51 +08:00 • committed by GitHub
parent 11a851f957
commit d85162ea44
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4 changed files with 77 additions and 42 deletions
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36
proxy/vless/inbound/inbound.go
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@ -6,6 +6,7 @@ import (
"context"
"io"
"strconv"
"strings"
"syscall"
"time"
@ -63,7 +64,7 @@ type Handler struct {
policyManager policy.Manager
validator *vless.Validator
dns dns.Client
fallbacks map[string]map[string]*Fallback // or nil
fallbacks map[string]map[string]map[string]*Fallback // or nil
// regexps map[string]*regexp.Regexp // or nil
}
@ -88,13 +89,16 @@ func New(ctx context.Context, config *Config, dc dns.Client) (*Handler, error) {
}
if config.Fallbacks != nil {
handler.fallbacks = make(map[string]map[string]*Fallback)
handler.fallbacks = make(map[string]map[string]map[string]*Fallback)
// handler.regexps = make(map[string]*regexp.Regexp)
for _, fb := range config.Fallbacks {
if handler.fallbacks[fb.Alpn] == nil {
handler.fallbacks[fb.Alpn] = make(map[string]*Fallback)
if handler.fallbacks[fb.Name] == nil {
handler.fallbacks[fb.Name] = make(map[string]map[string]*Fallback)
}
handler.fallbacks[fb.Alpn][fb.Path] = fb
if handler.fallbacks[fb.Name][fb.Alpn] == nil {
handler.fallbacks[fb.Name][fb.Alpn] = make(map[string]*Fallback)
}
handler.fallbacks[fb.Name][fb.Alpn][fb.Path] = fb
/*
if fb.Path != "" {
if r, err := regexp.Compile(fb.Path); err != nil {
@ -187,20 +191,38 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection i
}
newError("fallback starts").Base(err).AtInfo().WriteToLog(sid)
name := ""
alpn := ""
if len(apfb) > 1 || apfb[""] == nil {
if tlsConn, ok := iConn.(*tls.Conn); ok {
name = tlsConn.ConnectionState().ServerName
alpn = tlsConn.ConnectionState().NegotiatedProtocol
newError("realServerName = " + name).AtInfo().WriteToLog(sid)
newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
} else if xtlsConn, ok := iConn.(*xtls.Conn); ok {
name = xtlsConn.ConnectionState().ServerName
alpn = xtlsConn.ConnectionState().NegotiatedProtocol
newError("realServerName = " + name).AtInfo().WriteToLog(sid)
newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
}
if apfb[alpn] == nil {
labels := strings.Split(name, ".")
for i := range labels {
labels[i] = "*"
candidate := strings.Join(labels, ".")
if apfb[candidate] != nil {
name = candidate
break
}
}
if apfb[name] == nil {
name = ""
}
if apfb[name][alpn] == nil {
alpn = ""
}
}
pfb := apfb[alpn]
pfb := apfb[name][alpn]
if pfb == nil {
return newError(`failed to find the default "alpn" config`).AtWarning()
}