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107 lines
2.5 KiB
107 lines
2.5 KiB
package ws
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import (
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"io/ioutil"
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"net"
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"github.com/gorilla/websocket"
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"v2ray.com/core/common/log"
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v2net "v2ray.com/core/common/net"
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"v2ray.com/core/transport/internet"
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v2tls "v2ray.com/core/transport/internet/tls"
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)
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var (
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globalCache = NewConnectionCache()
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)
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func Dial(src v2net.Address, dest v2net.Destination, options internet.DialerOptions) (internet.Connection, error) {
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log.Info("WebSocket|Dailer: Creating connection to ", dest)
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if src == nil {
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src = v2net.AnyIP
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}
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networkSettings, err := options.Stream.GetEffectiveNetworkSettings()
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if err != nil {
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return nil, err
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}
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wsSettings := networkSettings.(*Config)
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id := src.String() + "-" + dest.NetAddr()
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var conn *wsconn
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if dest.Network == v2net.Network_TCP && wsSettings.ConnectionReuse.IsEnabled() {
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connt := globalCache.Get(id)
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if connt != nil {
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conn = connt.(*wsconn)
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}
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}
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if conn == nil {
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var err error
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conn, err = wsDial(src, dest, options)
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if err != nil {
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log.Warning("WebSocket|Dialer: Dial failed: ", err)
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return nil, err
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}
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}
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return NewConnection(id, conn, globalCache, wsSettings), nil
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}
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func init() {
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internet.WSDialer = Dial
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}
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func wsDial(src v2net.Address, dest v2net.Destination, options internet.DialerOptions) (*wsconn, error) {
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networkSettings, err := options.Stream.GetEffectiveNetworkSettings()
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if err != nil {
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return nil, err
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}
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wsSettings := networkSettings.(*Config)
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commonDial := func(network, addr string) (net.Conn, error) {
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return internet.DialToDest(src, dest)
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}
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dialer := websocket.Dialer{
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NetDial: commonDial,
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ReadBufferSize: 65536,
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WriteBufferSize: 65536,
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}
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protocol := "ws"
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if options.Stream != nil && options.Stream.HasSecuritySettings() {
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protocol = "wss"
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securitySettings, err := options.Stream.GetEffectiveSecuritySettings()
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if err != nil {
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log.Error("WebSocket: Failed to create security settings: ", err)
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return nil, err
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}
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tlsConfig, ok := securitySettings.(*v2tls.Config)
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if ok {
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dialer.TLSClientConfig = tlsConfig.GetTLSConfig()
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if dest.Address.Family().IsDomain() {
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dialer.TLSClientConfig.ServerName = dest.Address.Domain()
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}
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}
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}
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uri := protocol + "://" + dest.NetAddr() + "/" + wsSettings.Path
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conn, resp, err := dialer.Dial(uri, nil)
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if err != nil {
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if resp != nil {
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reason, reasonerr := ioutil.ReadAll(resp.Body)
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log.Info(string(reason), reasonerr)
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}
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return nil, err
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}
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return func() internet.Connection {
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connv2ray := &wsconn{
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wsc: conn,
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connClosing: false,
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config: wsSettings,
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}
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connv2ray.setup()
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return connv2ray
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}().(*wsconn), nil
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}
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