Add api command

cmd/sing-box/cmd_api_openconnect_status.go

@@ -0,0 +1,93 @@
+package main
+
+import (
+	"context"
+	"os"
+	"strings"
+
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/daemon"
+	F "github.com/sagernet/sing/common/format"
+
+	"github.com/spf13/cobra"
+)
+
+var commandAPIOpenConnectStatus = &cobra.Command{
+	Use:   "status",
+	Short: "Print OpenConnect endpoint status",
+	Args:  cobra.NoArgs,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return runAPIOpenConnectStatus()
+	},
+}
+
+func init() {
+	commandAPIOpenConnect.AddCommand(commandAPIOpenConnectStatus)
+}
+
+func runAPIOpenConnectStatus() error {
+	clientConn, client, err := createAPIClient()
+	if err != nil {
+		return err
+	}
+	defer clientConn.Close()
+	ctx, cancel := context.WithCancel(globalCtx)
+	defer cancel()
+	_, endpoints, err := subscribeOpenConnectStatus(ctx, client)
+	if err != nil {
+		return err
+	}
+	if len(endpoints) == 0 {
+		writeStderrLine("no openconnect endpoint is configured")
+		return nil
+	}
+	for index, endpointStatus := range endpoints {
+		if index > 0 {
+			os.Stdout.WriteString("\n")
+		}
+		writeOpenConnectStatusBlock(endpointStatus)
+	}
+	return nil
+}
+
+func writeOpenConnectStatusBlock(endpointStatus *daemon.OpenConnectEndpointStatus) {
+	var block blockWriter
+	block.addLine("Endpoint", endpointStatus.GetEndpointTag())
+	block.addLine("State", endpointStatus.GetState())
+	challenge := endpointStatus.GetAuthChallenge()
+	tunnelInfo := endpointStatus.GetTunnelInfo()
+	switch {
+	case challenge != nil:
+		block.addLine("Challenge", openConnectChallengeSummary(challenge))
+		if challenge.GetMessage() != "" {
+			block.addLine("Message", challenge.GetMessage())
+		}
+		if challenge.GetError() != "" {
+			block.addLine("Error", challenge.GetError())
+		}
+	case tunnelInfo != nil:
+		block.addLine("Server", tunnelInfo.GetServer())
+		block.addLine("Flavor", tunnelInfo.GetFlavor())
+		block.addLine("Transport", tunnelInfo.GetTransport())
+		if len(tunnelInfo.GetIpv4()) > 0 {
+			block.addLine("IPv4", strings.Join(tunnelInfo.GetIpv4(), ", "))
+		}
+		if len(tunnelInfo.GetIpv6()) > 0 {
+			block.addLine("IPv6", strings.Join(tunnelInfo.GetIpv6(), ", "))
+		}
+		if len(tunnelInfo.GetDns()) > 0 {
+			block.addLine("DNS", strings.Join(tunnelInfo.GetDns(), ", "))
+		}
+		if tunnelInfo.GetMtu() > 0 {
+			block.addLine("MTU", F.ToString(tunnelInfo.GetMtu()))
+		}
+		block.addLine("Connected since", formatVPNConnectedSince(tunnelInfo.GetConnectedSince()))
+	case endpointStatus.GetState() == adapter.OpenConnectStateError:
+		block.addLine("Error", endpointStatus.GetError())
+	}
+	block.flush()
+	if challenge != nil {
+		writeStderrLine("")
+		writeStderrLine(`run "sing-box api openconnect auth" to answer`)
+	}
+}