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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"
"encoding/json"
"io/ioutil"
"net/http"
"net/http/httptest"
"net/url"
"testing"
"golang.org/x/oauth2"
)
var auth = clientAuthentication{
AuthStyle: oauth2.AuthStyleInHeader,
ClientID: clientID,
ClientSecret: clientSecret,
}
var tokenRequest = stsTokenExchangeRequest{
ActingParty: struct {
ActorToken string
ActorTokenType string
}{},
GrantType: "urn:ietf:params:oauth:grant-type:token-exchange",
Resource: "",
Audience: "32555940559.apps.googleusercontent.com", //TODO: Make sure audience is correct in this test (might be mismatched)
Scope: []string{"https://www.googleapis.com/auth/devstorage.full_control"},
RequestedTokenType: "urn:ietf:params:oauth:token-type:access_token",
SubjectToken: "Sample.Subject.Token",
SubjectTokenType: "urn:ietf:params:oauth:token-type:jwt",
}
var requestbody = "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=Sample.Subject.Token&subject_token_type=urn%3Aietf%3Aparams%3Aoauth%3Atoken-type%3Ajwt"
var responseBody = `{"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"}`
var expectedToken = stsTokenExchangeResponse{
AccessToken: "Sample.Access.Token",
IssuedTokenType: "urn:ietf:params:oauth:token-type:access_token",
TokenType: "Bearer",
ExpiresIn: 3600,
Scope: "https://www.googleapis.com/auth/cloud-platform",
RefreshToken: "",
}
func TestExchangeToken(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
t.Errorf("Unexpected request method, %v is found", r.Method)
}
if r.URL.String() != "/" {
t.Errorf("Unexpected request URL, %v is found", r.URL)
}
if got, want := r.Header.Get("Authorization"), "Basic cmJyZ25vZ25yaG9uZ28zYmk0Z2I5Z2hnOWc6bm90c29zZWNyZXQ="; got != want {
t.Errorf("Unexpected authorization header, got %v, want %v", got, want)
}
if got, want := r.Header.Get("Content-Type"), "application/x-www-form-urlencoded"; got != want {
t.Errorf("Unexpected Content-Type header, got %v, want %v", got, want)
}
body, err := ioutil.ReadAll(r.Body)
if err != nil {
t.Errorf("Failed reading request body: %v.", err)
}
if got, want := string(body), requestbody; got != want {
t.Errorf("Unexpected exchange payload, got %v but want %v", got, want)
}
w.Header().Set("Content-Type", "application/json")
w.Write([]byte(responseBody))
}))
defer ts.Close()
headers := http.Header{}
headers.Add("Content-Type", "application/x-www-form-urlencoded")
resp, err := exchangeToken(context.Background(), ts.URL, &tokenRequest, auth, headers, nil)
if err != nil {
t.Fatalf("exchangeToken failed with error: %v", err)
}
if expectedToken != *resp {
t.Errorf("mismatched messages received by mock server. \nWant: \n%v\n\nGot:\n%v", expectedToken, *resp)
}
}
func TestExchangeToken_Err(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
w.Write([]byte("what's wrong with this response?"))
}))
defer ts.Close()
headers := http.Header{}
headers.Add("Content-Type", "application/x-www-form-urlencoded")
_, err := exchangeToken(context.Background(), ts.URL, &tokenRequest, auth, headers, nil)
if err == nil {
t.Errorf("Expected handled error; instead got nil.")
}
}
/* Lean test specifically for options, as the other features are tested earlier. */
type testOpts struct {
First string `json:"first"`
Second string `json:"second"`
}
var optsValues = [][]string{{"foo", "bar"}, {"cat", "pan"}}
func TestExchangeToken_Opts(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
body, err := ioutil.ReadAll(r.Body)
if err != nil {
t.Fatalf("Failed reading request body: %v.", err)
}
data, err := url.ParseQuery(string(body))
if err != nil {
t.Fatalf("Failed to parse request body: %v", err)
}
strOpts, ok := data["options"]
if !ok {
t.Errorf("Server didn't recieve an \"options\" field.")
} else if len(strOpts) < 1 {
t.Errorf("\"options\" field has length 0.")
}
var opts map[string]interface{}
err = json.Unmarshal([]byte(strOpts[0]), &opts)
if err != nil {
t.Fatalf("Couldn't parse received \"options\" field.")
}
if len(opts) < 2 {
t.Errorf("Too few options received.")
}
val, ok := opts["one"]
if !ok {
t.Errorf("Couldn't find first option parameter.")
} else {
tOpts1, ok := val.(map[string]interface{})
if !ok {
t.Errorf("Failed to assert the first option parameter as type testOpts.")
} else {
if got, want := tOpts1["first"].(string), optsValues[0][0]; got != want {
t.Errorf("First value in first options field is incorrect; got %v but want %v", got, want)
}
if got, want := tOpts1["second"].(string), optsValues[0][1]; got != want {
t.Errorf("Second value in first options field is incorrect; got %v but want %v", got, want)
}
}
}
val2, ok := opts["two"]
if !ok {
t.Errorf("Couldn't find second option parameter.")
} else {
tOpts2, ok := val2.(map[string]interface{})
if !ok {
t.Errorf("Failed to assert the second option parameter as type testOpts.")
} else {
if got, want := tOpts2["first"].(string), optsValues[1][0]; got != want {
t.Errorf("First value in second options field is incorrect; got %v but want %v", got, want)
}
if got, want := tOpts2["second"].(string), optsValues[1][1]; got != want {
t.Errorf("Second value in second options field is incorrect; got %v but want %v", got, want)
}
}
}
// Send a proper reply so that no other errors crop up.
w.Header().Set("Content-Type", "application/json")
w.Write([]byte(responseBody))
}))
defer ts.Close()
headers := http.Header{}
headers.Add("Content-Type", "application/x-www-form-urlencoded")
firstOption := testOpts{optsValues[0][0], optsValues[0][1]}
secondOption := testOpts{optsValues[1][0], optsValues[1][1]}
inputOpts := make(map[string]interface{})
inputOpts["one"] = firstOption
inputOpts["two"] = secondOption
exchangeToken(context.Background(), ts.URL, &tokenRequest, auth, headers, inputOpts)
}
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