[keyvault] add cae support

sdk/security/keyvault/internal/CHANGELOG.md

@@ -1,14 +1,9 @@
 # Release History
 
-## 1.0.2 (Unreleased)
+## 1.1.0 (2024-10-16)
 
 ### Features Added
-
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
+* Added CAE support
 
 ## 1.0.1 (2024-04-09)
 

sdk/security/keyvault/internal/challenge_policy_test.go

@@ -22,6 +22,22 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+var (
+	challengedToken = "needs more claims"
+	claimsToken     = "all the claims"
+	kvChallenge     = `Bearer authorization="https://login.microsoftonline.com/tenant", resource="https://vault.azure.net"`
+	caeChallenge1   = `Bearer realm="", authorization_uri="https://login.microsoftonline.com/common/oauth2/authorize", error="insufficient_claims", claims="dGVzdGluZzE="`
+	caeChallenge2   = `Bearer realm="", authorization_uri="https://login.microsoftonline.com/common/oauth2/authorize", error="insufficient_claims", claims="dGVzdGluZzI="`
+	// requireToken is a mock.Response predicate that checks a request for the expected token
+	requireToken = func(t *testing.T, want string) func(req *http.Request) bool {
+		return func(r *http.Request) bool {
+			_, actual, _ := strings.Cut(r.Header.Get("Authorization"), " ")
+			require.Equal(t, want, actual)
+			return true
+		}
+	}
+)
+
 type credentialFunc func(context.Context, policy.TokenRequestOptions) (azcore.AccessToken, error)
 
 func (cf credentialFunc) GetToken(ctx context.Context, options policy.TokenRequestOptions) (azcore.AccessToken, error) {
@@ -100,6 +116,179 @@ func TestChallengePolicy(t *testing.T) {
 	}
 }
 
+func TestChallengePolicy_CAE(t *testing.T) {
+	srv, close := mock.NewServer(mock.WithTransformAllRequestsToTestServerUrl())
+	defer close()
+	srv.AppendResponse(
+		mock.WithHeader("WWW-Authenticate", kvChallenge),
+		mock.WithStatusCode(401),
+		mock.WithPredicate(requireToken(t, "")),
+	)
+	srv.AppendResponse() // when a response's predicate returns true, srv pops the following one
+	srv.AppendResponse()
+
+	srv.AppendResponse(
+		mock.WithHeader("WWW-Authenticate", caeChallenge1),
+		mock.WithStatusCode(401),
+		mock.WithPredicate(requireToken(t, challengedToken)),
+	)
+	srv.AppendResponse() // when a response's predicate returns true, srv pops the following one
+	srv.AppendResponse(
+		mock.WithPredicate(requireToken(t, claimsToken)),
+	)
+	srv.AppendResponse() // when a response's predicate returns true, srv pops the following one
+
+	tkReqs := 0
+	cred := credentialFunc(func(ctx context.Context, tro policy.TokenRequestOptions) (azcore.AccessToken, error) {
+		require.True(t, tro.EnableCAE)
+		tkReqs += 1
+		tk := challengedToken
+		switch tkReqs {
+		case 1:
+			require.Empty(t, tro.Claims)
+		case 2:
+			tk = claimsToken
+			require.Equal(t, "testing1", tro.Claims)
+		default:
+			t.Fatal("unexpected token request")
+		}
+		return azcore.AccessToken{Token: tk, ExpiresOn: time.Now().Add(time.Hour)}, nil
+	})
+	p := NewKeyVaultChallengePolicy(cred, nil)
+	pl := runtime.NewPipeline("", "",
+		runtime.PipelineOptions{PerRetry: []policy.Policy{p}},
+		&policy.ClientOptions{Transport: srv},
+	)
+
+	// req 1 kv then regular
+	req, err := runtime.NewRequest(context.Background(), "GET", "https://42.vault.azure.net")
+	require.NoError(t, err)
+	res, err := pl.Do(req)
+	require.NoError(t, err)
+	require.Equal(t, 200, res.StatusCode)
+	require.Equal(t, 1, tkReqs)
+
+	// req 2 cae
+	req, err = runtime.NewRequest(context.Background(), "GET", "https://42.vault.azure.net")
+	require.NoError(t, err)
+	res, err = pl.Do(req)
+	require.NoError(t, err)
+	require.Equal(t, 200, res.StatusCode)
+	require.Equal(t, 2, tkReqs)
+}
+
+func TestChallengePolicy_KVThenCAE(t *testing.T) {
+	srv, close := mock.NewServer(mock.WithTransformAllRequestsToTestServerUrl())
+	defer close()
+	srv.AppendResponse(
+		mock.WithHeader("WWW-Authenticate", kvChallenge),
+		mock.WithStatusCode(401),
+		mock.WithPredicate(requireToken(t, "")),
+	)
+	srv.AppendResponse() // when a response's predicate returns true, srv pops the following one
+	srv.AppendResponse(
+		mock.WithHeader("WWW-Authenticate", caeChallenge1),
+		mock.WithStatusCode(401),
+		mock.WithPredicate(requireToken(t, challengedToken)),
+	)
+	srv.AppendResponse() // when a response's predicate returns true, srv pops the following one
+	srv.AppendResponse(
+		mock.WithPredicate(requireToken(t, claimsToken)),
+	)
+	srv.AppendResponse() // when a response's predicate returns true, srv pops the following one
+
+	tkReqs := 0
+	cred := credentialFunc(func(ctx context.Context, tro policy.TokenRequestOptions) (azcore.AccessToken, error) {
+		require.True(t, tro.EnableCAE)
+		tkReqs += 1
+		tk := challengedToken
+		switch tkReqs {
+		case 1:
+			require.Empty(t, tro.Claims)
+		case 2:
+			tk = claimsToken
+			require.Equal(t, "testing1", tro.Claims)
+		default:
+			t.Fatal("unexpected token request")
+		}
+		return azcore.AccessToken{Token: tk, ExpiresOn: time.Now().Add(time.Hour)}, nil
+	})
+	p := NewKeyVaultChallengePolicy(cred, nil)
+	pl := runtime.NewPipeline("", "",
+		runtime.PipelineOptions{PerRetry: []policy.Policy{p}},
+		&policy.ClientOptions{Transport: srv},
+	)
+	req, err := runtime.NewRequest(context.Background(), "GET", "https://42.vault.azure.net")
+	require.NoError(t, err)
+	res, err := pl.Do(req)
+	require.NoError(t, err)
+	require.Equal(t, 200, res.StatusCode)
+	require.Equal(t, tkReqs, 2)
+}
+
+func TestChallengePolicy_TwoCAEChallenges(t *testing.T) {
+	srv, close := mock.NewServer(mock.WithTransformAllRequestsToTestServerUrl())
+	defer close()
+	srv.AppendResponse(
+		mock.WithHeader("WWW-Authenticate", kvChallenge),
+		mock.WithStatusCode(401),
+		mock.WithPredicate(requireToken(t, "")),
+	)
+	srv.AppendResponse() // when a response's predicate returns true, srv pops the following one
+	srv.AppendResponse()
+
+	srv.AppendResponse(
+		mock.WithHeader("WWW-Authenticate", caeChallenge1),
+		mock.WithStatusCode(401),
+		mock.WithPredicate(requireToken(t, challengedToken)),
+	)
+	srv.AppendResponse() // when a response's predicate returns true, srv pops the following one
+	srv.AppendResponse(
+		mock.WithHeader("WWW-Authenticate", caeChallenge2),
+		mock.WithStatusCode(401),
+		mock.WithPredicate(requireToken(t, claimsToken)),
+	)
+	srv.AppendResponse() // when a response's predicate returns true, srv pops the following one
+	tkReqs := 0
+	cred := credentialFunc(func(ctx context.Context, tro policy.TokenRequestOptions) (azcore.AccessToken, error) {
+		require.True(t, tro.EnableCAE)
+		tk := challengedToken
+		tkReqs += 1
+		switch tkReqs {
+		case 1:
+			require.Empty(t, tro.Claims)
+		case 2:
+			tk = claimsToken
+			require.Equal(t, "testing1", tro.Claims)
+		default:
+			t.Fatal("unexpected token request")
+		}
+		return azcore.AccessToken{Token: tk, ExpiresOn: time.Now().Add(time.Hour)}, nil
+	})
+	p := NewKeyVaultChallengePolicy(cred, nil)
+	pl := runtime.NewPipeline("", "",
+		runtime.PipelineOptions{PerRetry: []policy.Policy{p}},
+		&policy.ClientOptions{Transport: srv},
+	)
+
+	// req 1 kv then regular
+	req, err := runtime.NewRequest(context.Background(), "GET", "https://42.vault.azure.net")
+	require.NoError(t, err)
+	res, err := pl.Do(req)
+	require.NoError(t, err)
+	require.Equal(t, 200, res.StatusCode)
+	require.Equal(t, tkReqs, 1)
+
+	// req 2 cae twice
+	req, err = runtime.NewRequest(context.Background(), "GET", "https://42.vault.azure.net")
+	require.NoError(t, err)
+	res, err = pl.Do(req)
+	require.NoError(t, err)
+	require.Equal(t, 401, res.StatusCode)
+	require.Equal(t, caeChallenge2, res.Header.Get("WWW-Authenticate"))
+	require.Equal(t, tkReqs, 2)
+}
+
 func TestParseTenant(t *testing.T) {
 	actual := parseTenant("")
 	require.Empty(t, actual)

sdk/security/keyvault/internal/constants.go

@@ -7,5 +7,5 @@
 package internal
 
 const (
-	version = "v1.0.2" //nolint
+	version = "v1.1.0" //nolint
 )

sdk/security/keyvault/internal/go.mod

@@ -3,15 +3,15 @@ module github.com/Azure/azure-sdk-for-go/sdk/security/keyvault/internal
 go 1.18
 
 require (
-	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.13.0
+	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.15.0
 	github.com/Azure/azure-sdk-for-go/sdk/internal v1.10.0
 	github.com/stretchr/testify v1.9.0
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	golang.org/x/net v0.27.0 // indirect
-	golang.org/x/text v0.16.0 // indirect
+	golang.org/x/net v0.30.0 // indirect
+	golang.org/x/text v0.19.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

sdk/security/keyvault/internal/go.sum

@@ -1,5 +1,5 @@
-github.com/Azure/azure-sdk-for-go/sdk/azcore v1.13.0 h1:GJHeeA2N7xrG3q30L2UXDyuWRzDM900/65j70wcM4Ww=
-github.com/Azure/azure-sdk-for-go/sdk/azcore v1.13.0/go.mod h1:l38EPgmsp71HHLq9j7De57JcKOWPyhrsW1Awm1JS6K0=
+github.com/Azure/azure-sdk-for-go/sdk/azcore v1.15.0 h1:eXzkOEXbSTOa7cJ7EqeCVi/OFi/ppDrUtQuttCWy74c=
+github.com/Azure/azure-sdk-for-go/sdk/azcore v1.15.0/go.mod h1:YL1xnZ6QejvQHWJrX/AvhFl4WW4rqHVoKspWNVwFk0M=
 github.com/Azure/azure-sdk-for-go/sdk/internal v1.10.0 h1:ywEEhmNahHBihViHepv3xPBn1663uRv2t2q/ESv9seY=
 github.com/Azure/azure-sdk-for-go/sdk/internal v1.10.0/go.mod h1:iZDifYGJTIgIIkYRNWPENUnqx6bJ2xnSDFI2tjwZNuY=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -11,10 +11,10 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-golang.org/x/net v0.27.0 h1:5K3Njcw06/l2y9vpGCSdcxWOYHOUk3dVNGDXN+FvAys=
-golang.org/x/net v0.27.0/go.mod h1:dDi0PyhWNoiUOrAS8uXv/vnScO4wnHQO4mj9fn/RytE=
-golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
-golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
+golang.org/x/net v0.30.0 h1:AcW1SDZMkb8IpzCdQUaIq2sP4sZ4zw+55h6ynffypl4=
+golang.org/x/net v0.30.0/go.mod h1:2wGyMJ5iFasEhkwi13ChkO/t1ECNC4X4eBKkVFyYFlU=
+golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
+golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=