Add api command

cmd/sing-box/cmd_api_openconnect_cancel.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"context"
+	"os"
+
+	"github.com/sagernet/sing-box/daemon"
+	E "github.com/sagernet/sing/common/exceptions"
+
+	"github.com/spf13/cobra"
+)
+
+var commandAPIOpenConnectCancelFlagEndpoint string
+
+var commandAPIOpenConnectCancel = &cobra.Command{
+	Use:   "cancel",
+	Short: "Cancel the pending OpenConnect authentication challenge",
+	Args:  cobra.NoArgs,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return runAPIOpenConnectCancel()
+	},
+}
+
+func init() {
+	commandAPIOpenConnectCancel.Flags().StringVar(&commandAPIOpenConnectCancelFlagEndpoint, "endpoint", "", "OpenConnect endpoint tag (default: the only configured endpoint)")
+	commandAPIOpenConnect.AddCommand(commandAPIOpenConnectCancel)
+}
+
+func runAPIOpenConnectCancel() 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
+	}
+	endpointStatus, err := resolveVPNEndpoint(endpoints, commandAPIOpenConnectCancelFlagEndpoint, "openconnect")
+	if err != nil {
+		return err
+	}
+	endpointTag := endpointStatus.GetEndpointTag()
+	challenge := endpointStatus.GetAuthChallenge()
+	if challenge == nil {
+		return E.New("no pending authentication challenge on ", endpointTag)
+	}
+	_, err = client.CancelOpenConnectAuthChallenge(ctx, &daemon.OpenConnectAuthChallengeCancel{
+		EndpointTag: endpointTag,
+		ChallengeID: challenge.GetId(),
+	})
+	if err != nil {
+		return err
+	}
+	os.Stdout.WriteString(endpointTag + ": authentication challenge canceled; the client will restart authentication\n")
+	return nil
+}