a6d0ae5890
This allows it to authenticate once, then exit once all sinks have reported success. Useful for things like an init container vs. a sidecard container. Also adds command-level testing of it.
352 lines
8.2 KiB
Go
352 lines
8.2 KiB
Go
package agent
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import (
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"context"
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"encoding/json"
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"io/ioutil"
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"os"
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"testing"
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"time"
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hclog "github.com/hashicorp/go-hclog"
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vaultjwt "github.com/hashicorp/vault-plugin-auth-jwt"
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"github.com/hashicorp/vault/api"
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"github.com/hashicorp/vault/command/agent/auth"
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agentjwt "github.com/hashicorp/vault/command/agent/auth/jwt"
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"github.com/hashicorp/vault/command/agent/sink"
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"github.com/hashicorp/vault/command/agent/sink/file"
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"github.com/hashicorp/vault/helper/dhutil"
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"github.com/hashicorp/vault/helper/jsonutil"
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"github.com/hashicorp/vault/helper/logging"
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vaulthttp "github.com/hashicorp/vault/http"
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"github.com/hashicorp/vault/logical"
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"github.com/hashicorp/vault/vault"
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)
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func TestJWTEndToEnd(t *testing.T) {
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testJWTEndToEnd(t, false)
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testJWTEndToEnd(t, true)
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}
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func testJWTEndToEnd(t *testing.T, ahWrapping bool) {
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logger := logging.NewVaultLogger(hclog.Trace)
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coreConfig := &vault.CoreConfig{
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Logger: logger,
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CredentialBackends: map[string]logical.Factory{
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"jwt": vaultjwt.Factory,
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},
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}
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cluster := vault.NewTestCluster(t, coreConfig, &vault.TestClusterOptions{
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HandlerFunc: vaulthttp.Handler,
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})
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cluster.Start()
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defer cluster.Cleanup()
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vault.TestWaitActive(t, cluster.Cores[0].Core)
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client := cluster.Cores[0].Client
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// Setup Vault
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err := client.Sys().EnableAuthWithOptions("jwt", &api.EnableAuthOptions{
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Type: "jwt",
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})
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if err != nil {
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t.Fatal(err)
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}
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_, err = client.Logical().Write("auth/jwt/config", map[string]interface{}{
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"bound_issuer": "https://team-vault.auth0.com/",
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"jwt_validation_pubkeys": TestECDSAPubKey,
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})
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if err != nil {
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t.Fatal(err)
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}
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_, err = client.Logical().Write("auth/jwt/role/test", map[string]interface{}{
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"bound_subject": "r3qXcK2bix9eFECzsU3Sbmh0K16fatW6@clients",
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"bound_audiences": "https://vault.plugin.auth.jwt.test",
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"user_claim": "https://vault/user",
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"groups_claim": "https://vault/groups",
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"policies": "test",
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"period": "3s",
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})
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if err != nil {
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t.Fatal(err)
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}
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// Generate encryption params
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pub, pri, err := dhutil.GeneratePublicPrivateKey()
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if err != nil {
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t.Fatal(err)
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}
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// We close these right away because we're just basically testing
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// permissions and finding a usable file name
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inf, err := ioutil.TempFile("", "auth.jwt.test.")
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if err != nil {
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t.Fatal(err)
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}
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in := inf.Name()
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inf.Close()
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os.Remove(in)
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t.Logf("input: %s", in)
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ouf, err := ioutil.TempFile("", "auth.tokensink.test.")
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if err != nil {
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t.Fatal(err)
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}
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out := ouf.Name()
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ouf.Close()
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os.Remove(out)
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t.Logf("output: %s", out)
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dhpathf, err := ioutil.TempFile("", "auth.dhpath.test.")
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if err != nil {
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t.Fatal(err)
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}
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dhpath := dhpathf.Name()
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dhpathf.Close()
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os.Remove(dhpath)
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// Write DH public key to file
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mPubKey, err := jsonutil.EncodeJSON(&dhutil.PublicKeyInfo{
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Curve25519PublicKey: pub,
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})
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if err != nil {
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t.Fatal(err)
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}
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if err := ioutil.WriteFile(dhpath, mPubKey, 0600); err != nil {
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t.Fatal(err)
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} else {
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logger.Trace("wrote dh param file", "path", dhpath)
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}
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ctx, cancelFunc := context.WithCancel(context.Background())
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timer := time.AfterFunc(30*time.Second, func() {
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cancelFunc()
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})
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defer timer.Stop()
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am, err := agentjwt.NewJWTAuthMethod(&auth.AuthConfig{
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Logger: logger.Named("auth.jwt"),
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MountPath: "auth/jwt",
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Config: map[string]interface{}{
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"path": in,
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"role": "test",
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},
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})
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if err != nil {
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t.Fatal(err)
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}
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ahConfig := &auth.AuthHandlerConfig{
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Logger: logger.Named("auth.handler"),
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Client: client,
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}
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if ahWrapping {
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ahConfig.WrapTTL = 10 * time.Second
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}
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ah := auth.NewAuthHandler(ahConfig)
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go ah.Run(ctx, am)
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defer func() {
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<-ah.DoneCh
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}()
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config := &sink.SinkConfig{
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Logger: logger.Named("sink.file"),
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AAD: "foobar",
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DHType: "curve25519",
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DHPath: dhpath,
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Config: map[string]interface{}{
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"path": out,
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},
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}
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if !ahWrapping {
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config.WrapTTL = 10 * time.Second
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}
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fs, err := file.NewFileSink(config)
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if err != nil {
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t.Fatal(err)
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}
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config.Sink = fs
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ss := sink.NewSinkServer(&sink.SinkServerConfig{
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Logger: logger.Named("sink.server"),
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Client: client,
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})
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go ss.Run(ctx, ah.OutputCh, []*sink.SinkConfig{config})
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defer func() {
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<-ss.DoneCh
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}()
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// This has to be after the other defers so it happens first
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defer cancelFunc()
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// Check that no jwt file exists
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_, err = os.Lstat(in)
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if err == nil {
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t.Fatal("expected err")
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}
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if !os.IsNotExist(err) {
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t.Fatal("expected notexist err")
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}
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_, err = os.Lstat(out)
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if err == nil {
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t.Fatal("expected err")
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}
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if !os.IsNotExist(err) {
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t.Fatal("expected notexist err")
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}
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cloned, err := client.Clone()
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if err != nil {
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t.Fatal(err)
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}
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// Get a token
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jwtToken, _ := GetTestJWT(t)
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if err := ioutil.WriteFile(in, []byte(jwtToken), 0600); err != nil {
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t.Fatal(err)
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} else {
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logger.Trace("wrote test jwt", "path", in)
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}
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checkToken := func() string {
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timeout := time.Now().Add(5 * time.Second)
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for {
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if time.Now().After(timeout) {
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t.Fatal("did not find a written token after timeout")
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}
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val, err := ioutil.ReadFile(out)
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if err == nil {
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os.Remove(out)
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if len(val) == 0 {
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t.Fatal("written token was empty")
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}
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// First decrypt it
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resp := new(dhutil.Envelope)
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if err := jsonutil.DecodeJSON(val, resp); err != nil {
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continue
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}
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aesKey, err := dhutil.GenerateSharedKey(pri, resp.Curve25519PublicKey)
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if err != nil {
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t.Fatal(err)
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}
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if len(aesKey) == 0 {
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t.Fatal("got empty aes key")
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}
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val, err = dhutil.DecryptAES(aesKey, resp.EncryptedPayload, resp.Nonce, []byte("foobar"))
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if err != nil {
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t.Fatalf("error: %v\nresp: %v", err, string(val))
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}
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// Now unwrap it
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wrapInfo := new(api.SecretWrapInfo)
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if err := jsonutil.DecodeJSON(val, wrapInfo); err != nil {
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t.Fatal(err)
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}
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switch {
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case wrapInfo.TTL != 10:
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t.Fatalf("bad wrap info: %v", wrapInfo.TTL)
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case !ahWrapping && wrapInfo.CreationPath != "sys/wrapping/wrap":
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t.Fatalf("bad wrap path: %v", wrapInfo.CreationPath)
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case ahWrapping && wrapInfo.CreationPath != "auth/jwt/login":
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t.Fatalf("bad wrap path: %v", wrapInfo.CreationPath)
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case wrapInfo.Token == "":
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t.Fatal("wrap token is empty")
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}
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cloned.SetToken(wrapInfo.Token)
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secret, err := cloned.Logical().Unwrap("")
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if err != nil {
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t.Fatal(err)
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}
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if ahWrapping {
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switch {
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case secret.Auth == nil:
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t.Fatal("unwrap secret auth is nil")
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case secret.Auth.ClientToken == "":
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t.Fatal("unwrap token is nil")
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}
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return secret.Auth.ClientToken
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} else {
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switch {
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case secret.Data == nil:
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t.Fatal("unwrap secret data is nil")
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case secret.Data["token"] == nil:
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t.Fatal("unwrap token is nil")
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}
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return secret.Data["token"].(string)
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}
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}
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time.Sleep(250 * time.Millisecond)
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}
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}
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origToken := checkToken()
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// We only check this if the renewer is actually renewing for us
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if !ahWrapping {
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// Period of 3 seconds, so should still be alive after 7
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timeout := time.Now().Add(7 * time.Second)
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cloned.SetToken(origToken)
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for {
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if time.Now().After(timeout) {
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break
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}
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secret, err := cloned.Auth().Token().LookupSelf()
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if err != nil {
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t.Fatal(err)
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}
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ttl, err := secret.Data["ttl"].(json.Number).Int64()
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if err != nil {
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t.Fatal(err)
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}
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if ttl > 3 {
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t.Fatalf("unexpected ttl: %v", secret.Data["ttl"])
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}
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}
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}
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// Get another token to test the backend pushing the need to authenticate
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// to the handler
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jwtToken, _ = GetTestJWT(t)
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if err := ioutil.WriteFile(in, []byte(jwtToken), 0600); err != nil {
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t.Fatal(err)
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}
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newToken := checkToken()
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if newToken == origToken {
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t.Fatal("found same token written")
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}
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if !ahWrapping {
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// Repeat the period test. At the end the old token should have expired and
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// the new token should still be alive after 7
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timeout := time.Now().Add(7 * time.Second)
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cloned.SetToken(newToken)
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for {
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if time.Now().After(timeout) {
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break
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}
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secret, err := cloned.Auth().Token().LookupSelf()
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if err != nil {
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t.Fatal(err)
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}
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ttl, err := secret.Data["ttl"].(json.Number).Int64()
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if err != nil {
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t.Fatal(err)
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}
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if ttl > 3 {
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t.Fatalf("unexpected ttl: %v", secret.Data["ttl"])
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}
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}
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cloned.SetToken(origToken)
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_, err = cloned.Auth().Token().LookupSelf()
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if err == nil {
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t.Fatal("expected error")
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}
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}
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}
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