|
4 | 4 | package cmd |
5 | 5 |
|
6 | 6 | import ( |
| 7 | + "encoding/json" |
| 8 | + "fmt" |
| 9 | + "io" |
| 10 | + "log" |
| 11 | + "net" |
7 | 12 | "os" |
| 13 | + "sync/atomic" |
| 14 | + "time" |
8 | 15 |
|
9 | 16 | "github.com/spf13/cobra" |
| 17 | + "github.com/wavetermdev/waveterm/pkg/util/packetparser" |
| 18 | + "github.com/wavetermdev/waveterm/pkg/wavebase" |
| 19 | + "github.com/wavetermdev/waveterm/pkg/wshrpc" |
| 20 | + "github.com/wavetermdev/waveterm/pkg/wshrpc/wshclient" |
10 | 21 | "github.com/wavetermdev/waveterm/pkg/wshrpc/wshremote" |
| 22 | + "github.com/wavetermdev/waveterm/pkg/wshutil" |
11 | 23 | ) |
12 | 24 |
|
13 | 25 | var serverCmd = &cobra.Command{ |
14 | | - Use: "connserver", |
15 | | - Hidden: true, |
16 | | - Short: "remote server to power wave blocks", |
17 | | - Args: cobra.NoArgs, |
18 | | - Run: serverRun, |
19 | | - PreRunE: preRunSetupRpcClient, |
| 26 | + Use: "connserver", |
| 27 | + Hidden: true, |
| 28 | + Short: "remote server to power wave blocks", |
| 29 | + Args: cobra.NoArgs, |
| 30 | + RunE: serverRun, |
20 | 31 | } |
21 | 32 |
|
| 33 | +var connServerRouter bool |
| 34 | + |
22 | 35 | func init() { |
| 36 | + serverCmd.Flags().BoolVar(&connServerRouter, "router", false, "run in local router mode") |
23 | 37 | rootCmd.AddCommand(serverCmd) |
24 | 38 | } |
25 | 39 |
|
26 | | -func serverRun(cmd *cobra.Command, args []string) { |
| 40 | +func MakeRemoteUnixListener() (net.Listener, error) { |
| 41 | + serverAddr := wavebase.GetRemoteDomainSocketName() |
| 42 | + os.Remove(serverAddr) // ignore error |
| 43 | + rtn, err := net.Listen("unix", serverAddr) |
| 44 | + if err != nil { |
| 45 | + return nil, fmt.Errorf("error creating listener at %v: %v", serverAddr, err) |
| 46 | + } |
| 47 | + os.Chmod(serverAddr, 0700) |
| 48 | + log.Printf("Server [unix-domain] listening on %s\n", serverAddr) |
| 49 | + return rtn, nil |
| 50 | +} |
| 51 | + |
| 52 | +func handleNewListenerConn(conn net.Conn, router *wshutil.WshRouter) { |
| 53 | + var routeIdContainer atomic.Pointer[string] |
| 54 | + proxy := wshutil.MakeRpcProxy() |
| 55 | + go func() { |
| 56 | + writeErr := wshutil.AdaptOutputChToStream(proxy.ToRemoteCh, conn) |
| 57 | + if writeErr != nil { |
| 58 | + log.Printf("error writing to domain socket: %v\n", writeErr) |
| 59 | + } |
| 60 | + }() |
| 61 | + go func() { |
| 62 | + // when input is closed, close the connection |
| 63 | + defer func() { |
| 64 | + conn.Close() |
| 65 | + routeIdPtr := routeIdContainer.Load() |
| 66 | + if routeIdPtr != nil && *routeIdPtr != "" { |
| 67 | + router.UnregisterRoute(*routeIdPtr) |
| 68 | + disposeMsg := &wshutil.RpcMessage{ |
| 69 | + Command: wshrpc.Command_Dispose, |
| 70 | + Data: wshrpc.CommandDisposeData{ |
| 71 | + RouteId: *routeIdPtr, |
| 72 | + }, |
| 73 | + Source: *routeIdPtr, |
| 74 | + AuthToken: proxy.GetAuthToken(), |
| 75 | + } |
| 76 | + disposeBytes, _ := json.Marshal(disposeMsg) |
| 77 | + router.InjectMessage(disposeBytes, *routeIdPtr) |
| 78 | + } |
| 79 | + }() |
| 80 | + wshutil.AdaptStreamToMsgCh(conn, proxy.FromRemoteCh) |
| 81 | + }() |
| 82 | + routeId, err := proxy.HandleClientProxyAuth(router) |
| 83 | + if err != nil { |
| 84 | + log.Printf("error handling client proxy auth: %v\n", err) |
| 85 | + conn.Close() |
| 86 | + return |
| 87 | + } |
| 88 | + router.RegisterRoute(routeId, proxy, false) |
| 89 | + routeIdContainer.Store(&routeId) |
| 90 | +} |
| 91 | + |
| 92 | +func runListener(listener net.Listener, router *wshutil.WshRouter) { |
| 93 | + defer func() { |
| 94 | + log.Printf("listener closed, exiting\n") |
| 95 | + time.Sleep(500 * time.Millisecond) |
| 96 | + wshutil.DoShutdown("", 1, true) |
| 97 | + }() |
| 98 | + for { |
| 99 | + conn, err := listener.Accept() |
| 100 | + if err == io.EOF { |
| 101 | + break |
| 102 | + } |
| 103 | + if err != nil { |
| 104 | + log.Printf("error accepting connection: %v\n", err) |
| 105 | + continue |
| 106 | + } |
| 107 | + go handleNewListenerConn(conn, router) |
| 108 | + } |
| 109 | +} |
| 110 | + |
| 111 | +func setupConnServerRpcClientWithRouter(router *wshutil.WshRouter) (*wshutil.WshRpc, error) { |
| 112 | + jwtToken := os.Getenv(wshutil.WaveJwtTokenVarName) |
| 113 | + if jwtToken == "" { |
| 114 | + return nil, fmt.Errorf("no jwt token found for connserver") |
| 115 | + } |
| 116 | + rpcCtx, err := wshutil.ExtractUnverifiedRpcContext(jwtToken) |
| 117 | + if err != nil { |
| 118 | + return nil, fmt.Errorf("error extracting rpc context from %s: %v", wshutil.WaveJwtTokenVarName, err) |
| 119 | + } |
| 120 | + authRtn, err := router.HandleProxyAuth(jwtToken) |
| 121 | + if err != nil { |
| 122 | + return nil, fmt.Errorf("error handling proxy auth: %v", err) |
| 123 | + } |
| 124 | + inputCh := make(chan []byte, wshutil.DefaultInputChSize) |
| 125 | + outputCh := make(chan []byte, wshutil.DefaultOutputChSize) |
| 126 | + connServerClient := wshutil.MakeWshRpc(inputCh, outputCh, *rpcCtx, &wshremote.ServerImpl{LogWriter: os.Stdout}) |
| 127 | + connServerClient.SetAuthToken(authRtn.AuthToken) |
| 128 | + router.RegisterRoute(authRtn.RouteId, connServerClient, false) |
| 129 | + wshclient.RouteAnnounceCommand(connServerClient, nil) |
| 130 | + return connServerClient, nil |
| 131 | +} |
| 132 | + |
| 133 | +func serverRunRouter() error { |
| 134 | + router := wshutil.NewWshRouter() |
| 135 | + termProxy := wshutil.MakeRpcProxy() |
| 136 | + rawCh := make(chan []byte, wshutil.DefaultOutputChSize) |
| 137 | + go packetparser.Parse(os.Stdin, termProxy.FromRemoteCh, rawCh) |
| 138 | + go func() { |
| 139 | + for msg := range termProxy.ToRemoteCh { |
| 140 | + packetparser.WritePacket(os.Stdout, msg) |
| 141 | + } |
| 142 | + }() |
| 143 | + go func() { |
| 144 | + // just ignore and drain the rawCh (stdin) |
| 145 | + // when stdin is closed, shutdown |
| 146 | + defer wshutil.DoShutdown("", 0, true) |
| 147 | + for range rawCh { |
| 148 | + // ignore |
| 149 | + } |
| 150 | + }() |
| 151 | + go func() { |
| 152 | + for msg := range termProxy.FromRemoteCh { |
| 153 | + // send this to the router |
| 154 | + router.InjectMessage(msg, wshutil.UpstreamRoute) |
| 155 | + } |
| 156 | + }() |
| 157 | + router.SetUpstreamClient(termProxy) |
| 158 | + // now set up the domain socket |
| 159 | + unixListener, err := MakeRemoteUnixListener() |
| 160 | + if err != nil { |
| 161 | + return fmt.Errorf("cannot create unix listener: %v", err) |
| 162 | + } |
| 163 | + client, err := setupConnServerRpcClientWithRouter(router) |
| 164 | + if err != nil { |
| 165 | + return fmt.Errorf("error setting up connserver rpc client: %v", err) |
| 166 | + } |
| 167 | + go runListener(unixListener, router) |
| 168 | + // run the sysinfo loop |
| 169 | + wshremote.RunSysInfoLoop(client, client.GetRpcContext().Conn) |
| 170 | + select {} |
| 171 | +} |
| 172 | + |
| 173 | +func serverRunNormal() error { |
| 174 | + err := setupRpcClient(&wshremote.ServerImpl{LogWriter: os.Stdout}) |
| 175 | + if err != nil { |
| 176 | + return err |
| 177 | + } |
27 | 178 | WriteStdout("running wsh connserver (%s)\n", RpcContext.Conn) |
28 | 179 | go wshremote.RunSysInfoLoop(RpcClient, RpcContext.Conn) |
29 | | - RpcClient.SetServerImpl(&wshremote.ServerImpl{LogWriter: os.Stdout}) |
30 | | - |
31 | 180 | select {} // run forever |
32 | 181 | } |
| 182 | + |
| 183 | +func serverRun(cmd *cobra.Command, args []string) error { |
| 184 | + if connServerRouter { |
| 185 | + return serverRunRouter() |
| 186 | + } else { |
| 187 | + return serverRunNormal() |
| 188 | + } |
| 189 | +} |
0 commit comments