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// 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"
"fmt"
"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
metricsHeader 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)
}
headerMetrics := r.Header.Get("x-goog-api-client")
if got, want := headerMetrics, tets.metricsHeader; 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 getExpectedMetricsHeader(source string, saImpersonation bool, configLifetime bool) string {
return fmt.Sprintf("gl-go/%s auth/unknown google-byoid-sdk source/%s sa-impersonation/%t config-lifetime/%t", goVersion(), source, saImpersonation, configLifetime)
}
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",
metricsHeader: getExpectedMetricsHeader("file", false, false),
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",
metricsHeader: getExpectedMetricsHeader("file", false, false),
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",
metricsHeader: getExpectedMetricsHeader("file", false, false),
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")
}
})
}
}
|
