google/internal/externalaccount/basecredentials_test.go - oauth2 - Git at Google

 // Copyright 2020 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.

 package externalaccount

 import (
 	"context"
 	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"testing"
 	"time"

 	"golang.org/x/oauth2"
 )

 const (
 	textBaseCredPath = "testdata/3pi_cred.txt"
 	jsonBaseCredPath = "testdata/3pi_cred.json"
 )

 var testBaseCredSource = CredentialSource{
 	File:   textBaseCredPath,
 	Format: format{Type: fileTypeText},
 }

 var testConfig = Config{
 	Audience:         "32555940559.apps.googleusercontent.com",
 	SubjectTokenType: "urn:ietf:params:oauth:token-type:jwt",
 	TokenInfoURL:     "http://localhost:8080/v1/tokeninfo",
 	ClientSecret:     "notsosecret",
 	ClientID:         "rbrgnognrhongo3bi4gb9ghg9g",
 	CredentialSource: testBaseCredSource,
 	Scopes:           []string{"https://www.googleapis.com/auth/devstorage.full_control"},
 }

 var (
 	baseCredsRequestBody                          = "audience=32555940559.apps.googleusercontent.com&grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Atoken-exchange&requested_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aaccess_token&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdevstorage.full_control&subject_token=street123&subject_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aid_token"
 	baseCredsResponseBody                         = `{"access_token":"Sample.Access.Token","issued_token_type":"urn:ietf:params:oauth:token-type:access_token","token_type":"Bearer","expires_in":3600,"scope":"https://www.googleapis.com/auth/cloud-platform"}`
 	workforcePoolRequestBodyWithClientId          = "audience=%2F%2Fiam.googleapis.com%2Flocations%2Feu%2FworkforcePools%2Fpool-id%2Fproviders%2Fprovider-id&grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Atoken-exchange&requested_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aaccess_token&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdevstorage.full_control&subject_token=street123&subject_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aid_token"
 	workforcePoolRequestBodyWithoutClientId       = "audience=%2F%2Fiam.googleapis.com%2Flocations%2Feu%2FworkforcePools%2Fpool-id%2Fproviders%2Fprovider-id&grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Atoken-exchange&options=%7B%22userProject%22%3A%22myProject%22%7D&requested_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aaccess_token&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdevstorage.full_control&subject_token=street123&subject_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aid_token"
 	correctAT                                     = "Sample.Access.Token"
 	expiry                                  int64 = 234852
 )
 var (
 	testNow = func() time.Time { return time.Unix(expiry, 0) }
 )

 type testExchangeTokenServer struct {
 	url           string
 	authorization string
 	contentType   string
 	body          string
 	response      string
 }

 func run(t *testing.T, config *Config, tets *testExchangeTokenServer) (*oauth2.Token, error) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		if got, want := r.URL.String(), tets.url; got != want {
 			t.Errorf("URL.String(): got %v but want %v", got, want)
 		}
 		headerAuth := r.Header.Get("Authorization")
 		if got, want := headerAuth, tets.authorization; got != want {
 			t.Errorf("got %v but want %v", got, want)
 		}
 		headerContentType := r.Header.Get("Content-Type")
 		if got, want := headerContentType, tets.contentType; got != want {
 			t.Errorf("got %v but want %v", got, want)
 		}
 		body, err := ioutil.ReadAll(r.Body)
 		if err != nil {
 			t.Fatalf("Failed reading request body: %s.", err)
 		}
 		if got, want := string(body), tets.body; got != want {
 			t.Errorf("Unexpected exchange payload: got %v but want %v", got, want)
 		}
 		w.Header().Set("Content-Type", "application/json")
 		w.Write([]byte(tets.response))
 	}))
 	defer server.Close()
 	config.TokenURL = server.URL

 	oldNow := now
 	defer func() { now = oldNow }()
 	now = testNow

 	ts := tokenSource{
 		ctx:  context.Background(),
 		conf: config,
 	}

 	return ts.Token()
 }

 func validateToken(t *testing.T, tok *oauth2.Token) {
 	if got, want := tok.AccessToken, correctAT; got != want {
 		t.Errorf("Unexpected access token: got %v, but wanted %v", got, want)
 	}
 	if got, want := tok.TokenType, "Bearer"; got != want {
 		t.Errorf("Unexpected TokenType: got %v, but wanted %v", got, want)
 	}

 	if got, want := tok.Expiry, testNow().Add(time.Duration(3600)*time.Second); got != want {
 		t.Errorf("Unexpected Expiry: got %v, but wanted %v", got, want)
 	}
 }

 func TestToken(t *testing.T) {
 	config := Config{
 		Audience:         "32555940559.apps.googleusercontent.com",
 		SubjectTokenType: "urn:ietf:params:oauth:token-type:id_token",
 		ClientSecret:     "notsosecret",
 		ClientID:         "rbrgnognrhongo3bi4gb9ghg9g",
 		CredentialSource: testBaseCredSource,
 		Scopes:           []string{"https://www.googleapis.com/auth/devstorage.full_control"},
 	}

 	server := testExchangeTokenServer{
 		url:           "/",
 		authorization: "Basic cmJyZ25vZ25yaG9uZ28zYmk0Z2I5Z2hnOWc6bm90c29zZWNyZXQ=",
 		contentType:   "application/x-www-form-urlencoded",
 		body:          baseCredsRequestBody,
 		response:      baseCredsResponseBody,
 	}

 	tok, err := run(t, &config, &server)

 	if err != nil {
 		t.Fatalf("Unexpected error: %e", err)
 	}
 	validateToken(t, tok)
 }

 func TestWorkforcePoolTokenWithClientID(t *testing.T) {
 	config := Config{
 		Audience:                 "//iam.googleapis.com/locations/eu/workforcePools/pool-id/providers/provider-id",
 		SubjectTokenType:         "urn:ietf:params:oauth:token-type:id_token",
 		ClientSecret:             "notsosecret",
 		ClientID:                 "rbrgnognrhongo3bi4gb9ghg9g",
 		CredentialSource:         testBaseCredSource,
 		Scopes:                   []string{"https://www.googleapis.com/auth/devstorage.full_control"},
 		WorkforcePoolUserProject: "myProject",
 	}

 	server := testExchangeTokenServer{
 		url:           "/",
 		authorization: "Basic cmJyZ25vZ25yaG9uZ28zYmk0Z2I5Z2hnOWc6bm90c29zZWNyZXQ=",
 		contentType:   "application/x-www-form-urlencoded",
 		body:          workforcePoolRequestBodyWithClientId,
 		response:      baseCredsResponseBody,
 	}

 	tok, err := run(t, &config, &server)

 	if err != nil {
 		t.Fatalf("Unexpected error: %e", err)
 	}
 	validateToken(t, tok)
 }

 func TestWorkforcePoolTokenWithoutClientID(t *testing.T) {
 	config := Config{
 		Audience:                 "//iam.googleapis.com/locations/eu/workforcePools/pool-id/providers/provider-id",
 		SubjectTokenType:         "urn:ietf:params:oauth:token-type:id_token",
 		ClientSecret:             "notsosecret",
 		CredentialSource:         testBaseCredSource,
 		Scopes:                   []string{"https://www.googleapis.com/auth/devstorage.full_control"},
 		WorkforcePoolUserProject: "myProject",
 	}

 	server := testExchangeTokenServer{
 		url:           "/",
 		authorization: "",
 		contentType:   "application/x-www-form-urlencoded",
 		body:          workforcePoolRequestBodyWithoutClientId,
 		response:      baseCredsResponseBody,
 	}

 	tok, err := run(t, &config, &server)

 	if err != nil {
 		t.Fatalf("Unexpected error: %e", err)
 	}
 	validateToken(t, tok)
 }

 func TestNonworkforceWithWorkforcePoolUserProject(t *testing.T) {
 	config := Config{
 		Audience:                 "32555940559.apps.googleusercontent.com",
 		SubjectTokenType:         "urn:ietf:params:oauth:token-type:id_token",
 		TokenURL:                 "https://sts.googleapis.com",
 		ClientSecret:             "notsosecret",
 		ClientID:                 "rbrgnognrhongo3bi4gb9ghg9g",
 		CredentialSource:         testBaseCredSource,
 		Scopes:                   []string{"https://www.googleapis.com/auth/devstorage.full_control"},
 		WorkforcePoolUserProject: "myProject",
 	}

 	_, err := config.TokenSource(context.Background())

 	if err == nil {
 		t.Fatalf("Expected error but found none")
 	}
 	if got, want := err.Error(), "oauth2/google: workforce_pool_user_project should not be set for non-workforce pool credentials"; got != want {
 		t.Errorf("Incorrect error received.\nExpected: %s\nRecieved: %s", want, got)
 	}
 }

 func TestWorkforcePoolCreation(t *testing.T) {
 	var audienceValidatyTests = []struct {
 		audience      string
 		expectSuccess bool
 	}{
 		{"//iam.googleapis.com/locations/global/workforcePools/pool-id/providers/provider-id", true},
 		{"//iam.googleapis.com/locations/eu/workforcePools/pool-id/providers/provider-id", true},
 		{"//iam.googleapis.com/locations/eu/workforcePools/workloadIdentityPools/providers/provider-id", true},
 		{"identitynamespace:1f12345:my_provider", false},
 		{"//iam.googleapis.com/projects/123456/locations/global/workloadIdentityPools/pool-id/providers/provider-id", false},
 		{"//iam.googleapis.com/projects/123456/locations/eu/workloadIdentityPools/pool-id/providers/provider-id", false},
 		{"//iam.googleapis.com/projects/123456/locations/global/workloadIdentityPools/workforcePools/providers/provider-id", false},
 		{"//iamgoogleapis.com/locations/eu/workforcePools/pool-id/providers/provider-id", false},
 		{"//iam.googleapiscom/locations/eu/workforcePools/pool-id/providers/provider-id", false},
 		{"//iam.googleapis.com/locations/workforcePools/pool-id/providers/provider-id", false},
 		{"//iam.googleapis.com/locations/eu/workforcePool/pool-id/providers/provider-id", false},
 		{"//iam.googleapis.com/locations//workforcePool/pool-id/providers/provider-id", false},
 	}

 	ctx := context.Background()
 	for _, tt := range audienceValidatyTests {
 		t.Run(" "+tt.audience, func(t *testing.T) { // We prepend a space ahead of the test input when outputting for sake of readability.
 			config := testConfig
 			config.TokenURL = "https://sts.googleapis.com" // Setting the most basic acceptable tokenURL
 			config.ServiceAccountImpersonationURL = "https://iamcredentials.googleapis.com"
 			config.Audience = tt.audience
 			config.WorkforcePoolUserProject = "myProject"
 			_, err := config.TokenSource(ctx)

 			if tt.expectSuccess && err != nil {
 				t.Errorf("got %v but want nil", err)
 			} else if !tt.expectSuccess && err == nil {
 				t.Errorf("got nil but expected an error")
 			}
 		})
 	}
 }
	// Copyright 2020 The Go Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style
	// license that can be found in the LICENSE file.

	package externalaccount

	import (
	"context"
	"io/ioutil"
	"net/http"
	"net/http/httptest"
	"testing"
	"time"

	"golang.org/x/oauth2"
	)

	const (
	textBaseCredPath = "testdata/3pi_cred.txt"
	jsonBaseCredPath = "testdata/3pi_cred.json"
	)

	var testBaseCredSource = CredentialSource{
	File: textBaseCredPath,
	Format: format{Type: fileTypeText},
	}

	var testConfig = Config{
	Audience: "32555940559.apps.googleusercontent.com",
	SubjectTokenType: "urn:ietf:params:oauth:token-type:jwt",
	TokenInfoURL: "http://localhost:8080/v1/tokeninfo",
	ClientSecret: "notsosecret",
	ClientID: "rbrgnognrhongo3bi4gb9ghg9g",
	CredentialSource: testBaseCredSource,
	Scopes: []string{"https://www.googleapis.com/auth/devstorage.full_control"},
	}

	var (
	baseCredsRequestBody = "audience=32555940559.apps.googleusercontent.com&grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Atoken-exchange&requested_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aaccess_token&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdevstorage.full_control&subject_token=street123&subject_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aid_token"
	baseCredsResponseBody = `{"access_token":"Sample.Access.Token","issued_token_type":"urn:ietf:params:oauth:token-type:access_token","token_type":"Bearer","expires_in":3600,"scope":"https://www.googleapis.com/auth/cloud-platform"}`
	workforcePoolRequestBodyWithClientId = "audience=%2F%2Fiam.googleapis.com%2Flocations%2Feu%2FworkforcePools%2Fpool-id%2Fproviders%2Fprovider-id&grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Atoken-exchange&requested_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aaccess_token&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdevstorage.full_control&subject_token=street123&subject_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aid_token"
	workforcePoolRequestBodyWithoutClientId = "audience=%2F%2Fiam.googleapis.com%2Flocations%2Feu%2FworkforcePools%2Fpool-id%2Fproviders%2Fprovider-id&grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Atoken-exchange&options=%7B%22userProject%22%3A%22myProject%22%7D&requested_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aaccess_token&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdevstorage.full_control&subject_token=street123&subject_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Aid_token"
	correctAT = "Sample.Access.Token"
	expiry int64 = 234852
	)
	var (
	testNow = func() time.Time { return time.Unix(expiry, 0) }
	)

	type testExchangeTokenServer struct {
	url string
	authorization string
	contentType string
	body string
	response string
	}

	func run(t testing.T, config Config, tets testExchangeTokenServer) (oauth2.Token, error) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
	if got, want := r.URL.String(), tets.url; got != want {
	t.Errorf("URL.String(): got %v but want %v", got, want)
	}
	headerAuth := r.Header.Get("Authorization")
	if got, want := headerAuth, tets.authorization; got != want {
	t.Errorf("got %v but want %v", got, want)
	}
	headerContentType := r.Header.Get("Content-Type")
	if got, want := headerContentType, tets.contentType; got != want {
	t.Errorf("got %v but want %v", got, want)
	}
	body, err := ioutil.ReadAll(r.Body)
	if err != nil {
	t.Fatalf("Failed reading request body: %s.", err)
	}
	if got, want := string(body), tets.body; got != want {
	t.Errorf("Unexpected exchange payload: got %v but want %v", got, want)
	}
	w.Header().Set("Content-Type", "application/json")
	w.Write([]byte(tets.response))
	}))
	defer server.Close()
	config.TokenURL = server.URL

	oldNow := now
	defer func() { now = oldNow }()
	now = testNow

	ts := tokenSource{
	ctx: context.Background(),
	conf: config,
	}

	return ts.Token()
	}

	func validateToken(t testing.T, tok oauth2.Token) {
	if got, want := tok.AccessToken, correctAT; got != want {
	t.Errorf("Unexpected access token: got %v, but wanted %v", got, want)
	}
	if got, want := tok.TokenType, "Bearer"; got != want {
	t.Errorf("Unexpected TokenType: got %v, but wanted %v", got, want)
	}

	if got, want := tok.Expiry, testNow().Add(time.Duration(3600)*time.Second); got != want {
	t.Errorf("Unexpected Expiry: got %v, but wanted %v", got, want)
	}
	}

	func TestToken(t *testing.T) {
	config := Config{
	Audience: "32555940559.apps.googleusercontent.com",
	SubjectTokenType: "urn:ietf:params:oauth:token-type:id_token",
	ClientSecret: "notsosecret",
	ClientID: "rbrgnognrhongo3bi4gb9ghg9g",
	CredentialSource: testBaseCredSource,
	Scopes: []string{"https://www.googleapis.com/auth/devstorage.full_control"},
	}

	server := testExchangeTokenServer{
	url: "/",
	authorization: "Basic cmJyZ25vZ25yaG9uZ28zYmk0Z2I5Z2hnOWc6bm90c29zZWNyZXQ=",
	contentType: "application/x-www-form-urlencoded",
	body: baseCredsRequestBody,
	response: baseCredsResponseBody,
	}

	tok, err := run(t, &config, &server)

	if err != nil {
	t.Fatalf("Unexpected error: %e", err)
	}
	validateToken(t, tok)
	}

	func TestWorkforcePoolTokenWithClientID(t *testing.T) {
	config := Config{
	Audience: "//iam.googleapis.com/locations/eu/workforcePools/pool-id/providers/provider-id",
	SubjectTokenType: "urn:ietf:params:oauth:token-type:id_token",
	ClientSecret: "notsosecret",
	ClientID: "rbrgnognrhongo3bi4gb9ghg9g",
	CredentialSource: testBaseCredSource,
	Scopes: []string{"https://www.googleapis.com/auth/devstorage.full_control"},
	WorkforcePoolUserProject: "myProject",
	}

	server := testExchangeTokenServer{
	url: "/",
	authorization: "Basic cmJyZ25vZ25yaG9uZ28zYmk0Z2I5Z2hnOWc6bm90c29zZWNyZXQ=",
	contentType: "application/x-www-form-urlencoded",
	body: workforcePoolRequestBodyWithClientId,
	response: baseCredsResponseBody,
	}

	tok, err := run(t, &config, &server)

	if err != nil {
	t.Fatalf("Unexpected error: %e", err)
	}
	validateToken(t, tok)
	}

	func TestWorkforcePoolTokenWithoutClientID(t *testing.T) {
	config := Config{
	Audience: "//iam.googleapis.com/locations/eu/workforcePools/pool-id/providers/provider-id",
	SubjectTokenType: "urn:ietf:params:oauth:token-type:id_token",
	ClientSecret: "notsosecret",
	CredentialSource: testBaseCredSource,
	Scopes: []string{"https://www.googleapis.com/auth/devstorage.full_control"},
	WorkforcePoolUserProject: "myProject",
	}

	server := testExchangeTokenServer{
	url: "/",
	authorization: "",
	contentType: "application/x-www-form-urlencoded",
	body: workforcePoolRequestBodyWithoutClientId,
	response: baseCredsResponseBody,
	}

	tok, err := run(t, &config, &server)

	if err != nil {
	t.Fatalf("Unexpected error: %e", err)
	}
	validateToken(t, tok)
	}

	func TestNonworkforceWithWorkforcePoolUserProject(t *testing.T) {
	config := Config{
	Audience: "32555940559.apps.googleusercontent.com",
	SubjectTokenType: "urn:ietf:params:oauth:token-type:id_token",
	TokenURL: "https://sts.googleapis.com",
	ClientSecret: "notsosecret",
	ClientID: "rbrgnognrhongo3bi4gb9ghg9g",
	CredentialSource: testBaseCredSource,
	Scopes: []string{"https://www.googleapis.com/auth/devstorage.full_control"},
	WorkforcePoolUserProject: "myProject",
	}

	_, err := config.TokenSource(context.Background())

	if err == nil {
	t.Fatalf("Expected error but found none")
	}
	if got, want := err.Error(), "oauth2/google: workforce_pool_user_project should not be set for non-workforce pool credentials"; got != want {
	t.Errorf("Incorrect error received.\nExpected: %s\nRecieved: %s", want, got)
	}
	}

	func TestWorkforcePoolCreation(t *testing.T) {
	var audienceValidatyTests = []struct {
	audience string
	expectSuccess bool
	}{
	{"//iam.googleapis.com/locations/global/workforcePools/pool-id/providers/provider-id", true},
	{"//iam.googleapis.com/locations/eu/workforcePools/pool-id/providers/provider-id", true},
	{"//iam.googleapis.com/locations/eu/workforcePools/workloadIdentityPools/providers/provider-id", true},
	{"identitynamespace:1f12345:my_provider", false},
	{"//iam.googleapis.com/projects/123456/locations/global/workloadIdentityPools/pool-id/providers/provider-id", false},
	{"//iam.googleapis.com/projects/123456/locations/eu/workloadIdentityPools/pool-id/providers/provider-id", false},
	{"//iam.googleapis.com/projects/123456/locations/global/workloadIdentityPools/workforcePools/providers/provider-id", false},
	{"//iamgoogleapis.com/locations/eu/workforcePools/pool-id/providers/provider-id", false},
	{"//iam.googleapiscom/locations/eu/workforcePools/pool-id/providers/provider-id", false},
	{"//iam.googleapis.com/locations/workforcePools/pool-id/providers/provider-id", false},
	{"//iam.googleapis.com/locations/eu/workforcePool/pool-id/providers/provider-id", false},
	{"//iam.googleapis.com/locations//workforcePool/pool-id/providers/provider-id", false},
	}

	ctx := context.Background()
	for _, tt := range audienceValidatyTests {
	t.Run(" "+tt.audience, func(t *testing.T) { // We prepend a space ahead of the test input when outputting for sake of readability.
	config := testConfig
	config.TokenURL = "https://sts.googleapis.com" // Setting the most basic acceptable tokenURL
	config.ServiceAccountImpersonationURL = "https://iamcredentials.googleapis.com"
	config.Audience = tt.audience
	config.WorkforcePoolUserProject = "myProject"
	_, err := config.TokenSource(ctx)

	if tt.expectSuccess && err != nil {
	t.Errorf("got %v but want nil", err)
	} else if !tt.expectSuccess && err == nil {
	t.Errorf("got nil but expected an error")
	}
	})
	}
	}