cloudflared-mirror/cmd/cloudflared/tunnel/subcommands.go

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package tunnel
import (
"encoding/json"
"fmt"
"os"
"time"
"github.com/pkg/errors"
"gopkg.in/urfave/cli.v2"
"gopkg.in/yaml.v2"
"github.com/cloudflare/cloudflared/certutil"
"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/tunnelstore"
)
var (
outputFormatFlag = &cli.StringFlag{
Name: "output",
Aliases: []string{"o"},
Usage: "Render output using given `FORMAT`. Valid options are 'json' or 'yaml'",
}
)
const hideSubcommands = true
func buildCreateCommand() *cli.Command {
return &cli.Command{
Name: "create",
Action: cliutil.ErrorHandler(createTunnel),
Usage: "Create a new tunnel with given name",
ArgsUsage: "TUNNEL-NAME",
Hidden: hideSubcommands,
Flags: []cli.Flag{outputFormatFlag},
}
}
func createTunnel(c *cli.Context) error {
if c.NArg() != 1 {
return cliutil.UsageError(`"cloudflared tunnel create" requires exactly 1 argument, the name of tunnel to create.`)
}
name := c.Args().First()
logger, err := logger.New()
if err != nil {
return errors.Wrap(err, "error setting up logger")
}
client, err := newTunnelstoreClient(c, logger)
if err != nil {
return err
}
tunnel, err := client.CreateTunnel(name)
if err != nil {
return errors.Wrap(err, "Error creating a new tunnel")
}
if outputFormat := c.String(outputFormatFlag.Name); outputFormat != "" {
return renderOutput(outputFormat, &tunnel)
}
logger.Infof("Created tunnel %s with id %s", tunnel.Name, tunnel.ID)
return nil
}
func buildListCommand() *cli.Command {
return &cli.Command{
Name: "list",
Action: cliutil.ErrorHandler(listTunnels),
Usage: "List existing tunnels",
ArgsUsage: " ",
Hidden: hideSubcommands,
Flags: []cli.Flag{outputFormatFlag},
}
}
func listTunnels(c *cli.Context) error {
logger, err := logger.New()
if err != nil {
return errors.Wrap(err, "error setting up logger")
}
client, err := newTunnelstoreClient(c, logger)
if err != nil {
return err
}
tunnels, err := client.ListTunnels()
if err != nil {
return errors.Wrap(err, "Error listing tunnels")
}
if outputFormat := c.String(outputFormatFlag.Name); outputFormat != "" {
return renderOutput(outputFormat, tunnels)
}
if len(tunnels) > 0 {
const listFormat = "%-40s%-40s%s\n"
fmt.Printf(listFormat, "ID", "NAME", "CREATED")
for _, t := range tunnels {
fmt.Printf(listFormat, t.ID, t.Name, t.CreatedAt.Format(time.RFC3339))
}
} else {
fmt.Println("You have no tunnels, use 'cloudflared tunnel create' to define a new tunnel")
}
return nil
}
func buildDeleteCommand() *cli.Command {
return &cli.Command{
Name: "delete",
Action: cliutil.ErrorHandler(deleteTunnel),
Usage: "Delete existing tunnel with given ID",
ArgsUsage: "TUNNEL-ID",
Hidden: hideSubcommands,
}
}
func deleteTunnel(c *cli.Context) error {
if c.NArg() != 1 {
return cliutil.UsageError(`"cloudflared tunnel delete" requires exactly 1 argument, the ID of the tunnel to delete.`)
}
id := c.Args().First()
logger, err := logger.New()
if err != nil {
return errors.Wrap(err, "error setting up logger")
}
client, err := newTunnelstoreClient(c, logger)
if err != nil {
return err
}
if err := client.DeleteTunnel(id); err != nil {
return errors.Wrapf(err, "Error deleting tunnel %s", id)
}
return nil
}
func renderOutput(format string, v interface{}) error {
switch format {
case "json":
encoder := json.NewEncoder(os.Stdout)
encoder.SetIndent("", " ")
return encoder.Encode(v)
case "yaml":
return yaml.NewEncoder(os.Stdout).Encode(v)
default:
return errors.Errorf("Unknown output format '%s'", format)
}
}
func newTunnelstoreClient(c *cli.Context, logger logger.Service) (tunnelstore.Client, error) {
originCertPath, err := findOriginCert(c, logger)
if err != nil {
return nil, errors.Wrap(err, "Error locating origin cert")
}
blocks, err := readOriginCert(originCertPath, logger)
if err != nil {
return nil, errors.Wrapf(err, "Can't read origin cert from %s", originCertPath)
}
cert, err := certutil.DecodeOriginCert(blocks)
if err != nil {
return nil, errors.Wrap(err, "Error decoding origin cert")
}
if cert.AccountID == "" {
return nil, errors.Errorf(`Origin certificate needs to be refreshed before creating new tunnels.\nDelete %s and run "cloudflared login" to obtain a new cert.`, originCertPath)
}
client := tunnelstore.NewRESTClient(c.String("api-url"), cert.AccountID, cert.ServiceKey, logger)
return client, nil
}