Brad FitzpatrickandBrad Fitzpatrick
c086992f4f
Add a "tailscale whoami" subcommand that is equivalent to running "tailscale whois $(tailscale ip -4)" but more ergonomic. It supports the --json flag just like whois, and shares the WhoIsResponse rendering code with whois. Fixes #19907 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> Change-Id: I8f33ba7a5608bab7dffa8213303beb5f345936d3
53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
// Copyright (c) Tailscale Inc & contributors
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
package cli
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"flag"
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/peterbourgon/ff/v3/ffcli"
|
|
)
|
|
|
|
var whoamiCmd = &ffcli.Command{
|
|
Name: "whoami",
|
|
ShortUsage: "tailscale whoami [--json]",
|
|
ShortHelp: "Show the machine and user identity of the current machine",
|
|
LongHelp: strings.TrimSpace(`
|
|
'tailscale whoami' shows the machine and user identity of the current machine.
|
|
It is equivalent to running 'tailscale whois' against one of the current machine's own Tailscale IP addresses.
|
|
`),
|
|
Exec: runWhoami,
|
|
FlagSet: func() *flag.FlagSet {
|
|
fs := newFlagSet("whoami")
|
|
fs.BoolVar(&whoamiArgs.json, "json", false, "output in JSON format")
|
|
return fs
|
|
}(),
|
|
}
|
|
|
|
var whoamiArgs struct {
|
|
json bool // output in JSON format
|
|
}
|
|
|
|
func runWhoami(ctx context.Context, args []string) error {
|
|
if len(args) > 0 {
|
|
return errors.New("too many arguments, expected none")
|
|
}
|
|
st, err := localClient.StatusWithoutPeers(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if len(st.TailscaleIPs) == 0 {
|
|
return fmt.Errorf("no current Tailscale IP address; state: %v", st.BackendState)
|
|
}
|
|
who, err := localClient.WhoIsProto(ctx, "", st.TailscaleIPs[0].String())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return printWhoIs(who, whoamiArgs.json)
|
|
}
|