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Update capabilities command

This commit is contained in:
Seth Vargo 2017-09-05 00:00:00 -04:00
parent ae4bf4eec7
commit a7589f7613
No known key found for this signature in database
GPG Key ID: C921994F9C27E0FF
2 changed files with 215 additions and 75 deletions

View File

@ -2,49 +2,86 @@ package command
import (
"fmt"
"sort"
"strings"
"github.com/hashicorp/vault/meta"
"github.com/mitchellh/cli"
"github.com/posener/complete"
)
// Ensure we are implementing the right interfaces.
var _ cli.Command = (*CapabilitiesCommand)(nil)
var _ cli.CommandAutocomplete = (*CapabilitiesCommand)(nil)
// CapabilitiesCommand is a Command that enables a new endpoint.
type CapabilitiesCommand struct {
meta.Meta
*BaseCommand
}
func (c *CapabilitiesCommand) Synopsis() string {
return "Fetchs the capabilities of a token"
}
func (c *CapabilitiesCommand) Help() string {
helpText := `
Usage: vault capabilities [options] [TOKEN] PATH
Fetches the capabilities of a token for a given path. If a TOKEN is provided
as an argument, the "/sys/capabilities" endpoint and permission is used. If
no TOKEN is provided, the "/sys/capabilities-self" endpoint and permission
is used with the locally authenticated token.
List capabilities for the local token on the "secret/foo" path:
$ vault capabilities secret/foo
List capabilities for a token on the "cubbyhole/foo" path:
$ vault capabilities 96ddf4bc-d217-f3ba-f9bd-017055595017 cubbyhole/foo
For a full list of examples, please see the documentation.
` + c.Flags().Help()
return strings.TrimSpace(helpText)
}
func (c *CapabilitiesCommand) Flags() *FlagSets {
return c.flagSet(FlagSetHTTP)
}
func (c *CapabilitiesCommand) AutocompleteArgs() complete.Predictor {
return nil
}
func (c *CapabilitiesCommand) AutocompleteFlags() complete.Flags {
return c.Flags().Completions()
}
func (c *CapabilitiesCommand) Run(args []string) int {
flags := c.Meta.FlagSet("capabilities", meta.FlagSetDefault)
flags.Usage = func() { c.Ui.Error(c.Help()) }
if err := flags.Parse(args); err != nil {
f := c.Flags()
if err := f.Parse(args); err != nil {
c.UI.Error(err.Error())
return 1
}
args = flags.Args()
if len(args) > 2 {
flags.Usage()
c.Ui.Error(fmt.Sprintf(
"\ncapabilities expects at most two arguments"))
return 1
}
var token string
var path string
token := ""
path := ""
args = f.Args()
switch {
case len(args) == 1:
path = args[0]
case len(args) == 2:
token = args[0]
path = args[1]
token, path = args[0], args[1]
default:
flags.Usage()
c.Ui.Error(fmt.Sprintf("\ncapabilities expects at least one argument"))
c.UI.Error(fmt.Sprintf("Too many arguments (expected 1-2, got %d)", len(args)))
return 1
}
client, err := c.Client()
if err != nil {
c.Ui.Error(fmt.Sprintf(
"Error initializing client: %s", err))
c.UI.Error(err.Error())
return 2
}
@ -55,33 +92,11 @@ func (c *CapabilitiesCommand) Run(args []string) int {
capabilities, err = client.Sys().Capabilities(token, path)
}
if err != nil {
c.Ui.Error(fmt.Sprintf(
"Error retrieving capabilities: %s", err))
return 1
c.UI.Error(fmt.Sprintf("Error listing capabilities: %s", err))
return 2
}
c.Ui.Output(fmt.Sprintf("Capabilities: %s", capabilities))
sort.Strings(capabilities)
c.UI.Output(strings.Join(capabilities, ", "))
return 0
}
func (c *CapabilitiesCommand) Synopsis() string {
return "Fetch the capabilities of a token on a given path"
}
func (c *CapabilitiesCommand) Help() string {
helpText := `
Usage: vault capabilities [options] [token] path
Fetch the capabilities of a token on a given path.
If a token is provided as an argument, the '/sys/capabilities' endpoint will be invoked
with the given token; otherwise the '/sys/capabilities-self' endpoint will be invoked
with the client token.
If a token does not have any capability on a given path, or if any of the policies
belonging to the token explicitly have ["deny"] capability, or if the argument path
is invalid, this command will respond with a ["deny"].
General Options:
` + meta.GeneralOptionsUsage()
return strings.TrimSpace(helpText)
}

View File

@ -1,45 +1,170 @@
package command
import (
"strings"
"testing"
"github.com/hashicorp/vault/http"
"github.com/hashicorp/vault/meta"
"github.com/hashicorp/vault/vault"
"github.com/hashicorp/vault/api"
"github.com/mitchellh/cli"
)
func TestCapabilities_Basic(t *testing.T) {
core, _, token := vault.TestCoreUnsealed(t)
ln, addr := http.TestServer(t, core)
defer ln.Close()
ui := new(cli.MockUi)
c := &CapabilitiesCommand{
Meta: meta.Meta{
ClientToken: token,
Ui: ui,
func testCapabilitiesCommand(tb testing.TB) (*cli.MockUi, *CapabilitiesCommand) {
tb.Helper()
ui := cli.NewMockUi()
return ui, &CapabilitiesCommand{
BaseCommand: &BaseCommand{
UI: ui,
},
}
}
func TestCapabilitiesCommand_Run(t *testing.T) {
t.Parallel()
cases := []struct {
name string
args []string
out string
code int
}{
{
"too_many_args",
[]string{"foo", "bar", "zip"},
"Too many arguments",
1,
},
}
var args []string
for _, tc := range cases {
tc := tc
args = []string{"-address", addr}
if code := c.Run(args); code == 0 {
t.Fatalf("expected failure due to no args")
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
ui, cmd := testCapabilitiesCommand(t)
code := cmd.Run(tc.args)
if code != tc.code {
t.Errorf("expected %d to be %d", code, tc.code)
}
combined := ui.OutputWriter.String() + ui.ErrorWriter.String()
if !strings.Contains(combined, tc.out) {
t.Errorf("expected %q to contain %q", combined, tc.out)
}
})
}
args = []string{"-address", addr, "testpath"}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
t.Run("token", func(t *testing.T) {
t.Parallel()
args = []string{"-address", addr, token, "test"}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
client, closer := testVaultServer(t)
defer closer()
args = []string{"-address", addr, "invalidtoken", "test"}
if code := c.Run(args); code == 0 {
t.Fatalf("expected failure due to invalid token")
}
policy := `path "secret/foo" { capabilities = ["read"] }`
if err := client.Sys().PutPolicy("policy", policy); err != nil {
t.Error(err)
}
secret, err := client.Auth().Token().Create(&api.TokenCreateRequest{
Policies: []string{"policy"},
TTL: "30m",
})
if err != nil {
t.Fatal(err)
}
if secret == nil || secret.Auth == nil || secret.Auth.ClientToken == "" {
t.Fatalf("missing auth data: %#v", secret)
}
token := secret.Auth.ClientToken
ui, cmd := testCapabilitiesCommand(t)
cmd.client = client
code := cmd.Run([]string{
token, "secret/foo",
})
if exp := 0; code != exp {
t.Errorf("expected %d to be %d", code, exp)
}
expected := "read"
combined := ui.OutputWriter.String() + ui.ErrorWriter.String()
if !strings.Contains(combined, expected) {
t.Errorf("expected %q to contain %q", combined, expected)
}
})
t.Run("local", func(t *testing.T) {
t.Parallel()
client, closer := testVaultServer(t)
defer closer()
policy := `path "secret/foo" { capabilities = ["read"] }`
if err := client.Sys().PutPolicy("policy", policy); err != nil {
t.Error(err)
}
secret, err := client.Auth().Token().Create(&api.TokenCreateRequest{
Policies: []string{"policy"},
TTL: "30m",
})
if err != nil {
t.Fatal(err)
}
if secret == nil || secret.Auth == nil || secret.Auth.ClientToken == "" {
t.Fatalf("missing auth data: %#v", secret)
}
token := secret.Auth.ClientToken
client.SetToken(token)
ui, cmd := testCapabilitiesCommand(t)
cmd.client = client
code := cmd.Run([]string{
"secret/foo",
})
if exp := 0; code != exp {
t.Errorf("expected %d to be %d", code, exp)
}
expected := "read"
combined := ui.OutputWriter.String() + ui.ErrorWriter.String()
if !strings.Contains(combined, expected) {
t.Errorf("expected %q to contain %q", combined, expected)
}
})
t.Run("communication_failure", func(t *testing.T) {
t.Parallel()
client, closer := testVaultServerBad(t)
defer closer()
ui, cmd := testCapabilitiesCommand(t)
cmd.client = client
code := cmd.Run([]string{
"foo", "bar",
})
if exp := 2; code != exp {
t.Errorf("expected %d to be %d", code, exp)
}
expected := "Error listing capabilities: "
combined := ui.OutputWriter.String() + ui.ErrorWriter.String()
if !strings.Contains(combined, expected) {
t.Errorf("expected %q to contain %q", combined, expected)
}
})
t.Run("no_tabs", func(t *testing.T) {
t.Parallel()
_, cmd := testCapabilitiesCommand(t)
assertNoTabs(t, cmd)
})
}