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// Copyright 2021 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 authhandler
import (
"context"
"fmt"
"net/http"
"net/http/httptest"
"testing"
"golang.org/x/oauth2"
)
func TestTokenExchange_Success(t *testing.T) {
authhandler := func(authCodeURL string) (string, string, error) {
if authCodeURL == "testAuthCodeURL?client_id=testClientID&response_type=code&scope=pubsub&state=testState" {
return "testCode", "testState", nil
}
return "", "", fmt.Errorf("invalid authCodeURL: %q", authCodeURL)
}
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
r.ParseForm()
if r.Form.Get("code") == "testCode" {
w.Header().Set("Content-Type", "application/json")
w.Write([]byte(`{
"access_token": "90d64460d14870c08c81352a05dedd3465940a7c",
"scope": "pubsub",
"token_type": "bearer",
"expires_in": 3600
}`))
}
}))
defer ts.Close()
conf := &oauth2.Config{
ClientID: "testClientID",
Scopes: []string{"pubsub"},
Endpoint: oauth2.Endpoint{
AuthURL: "testAuthCodeURL",
TokenURL: ts.URL,
},
}
tok, err := TokenSource(context.Background(), conf, "testState", authhandler).Token()
if err != nil {
t.Fatal(err)
}
if !tok.Valid() {
t.Errorf("got invalid token: %v", tok)
}
if got, want := tok.AccessToken, "90d64460d14870c08c81352a05dedd3465940a7c"; got != want {
t.Errorf("access token = %q; want %q", got, want)
}
if got, want := tok.TokenType, "bearer"; got != want {
t.Errorf("token type = %q; want %q", got, want)
}
if got := tok.Expiry.IsZero(); got {
t.Errorf("token expiry is zero = %v, want false", got)
}
scope := tok.Extra("scope")
if got, want := scope, "pubsub"; got != want {
t.Errorf("scope = %q; want %q", got, want)
}
}
func TestTokenExchange_StateMismatch(t *testing.T) {
authhandler := func(authCodeURL string) (string, string, error) {
return "testCode", "testStateMismatch", nil
}
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
w.Write([]byte(`{
"access_token": "90d64460d14870c08c81352a05dedd3465940a7c",
"scope": "pubsub",
"token_type": "bearer",
"expires_in": 3600
}`))
}))
defer ts.Close()
conf := &oauth2.Config{
ClientID: "testClientID",
Scopes: []string{"pubsub"},
Endpoint: oauth2.Endpoint{
AuthURL: "testAuthCodeURL",
TokenURL: ts.URL,
},
}
_, err := TokenSource(context.Background(), conf, "testState", authhandler).Token()
if want_err := "state mismatch in 3-legged-OAuth flow"; err == nil || err.Error() != want_err {
t.Errorf("err = %q; want %q", err, want_err)
}
}
func TestTokenExchangeWithPKCE_Success(t *testing.T) {
authhandler := func(authCodeURL string) (string, string, error) {
if authCodeURL == "testAuthCodeURL?client_id=testClientID&code_challenge=codeChallenge&code_challenge_method=plain&response_type=code&scope=pubsub&state=testState" {
return "testCode", "testState", nil
}
return "", "", fmt.Errorf("invalid authCodeURL: %q", authCodeURL)
}
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
r.ParseForm()
if r.Form.Get("code") == "testCode" && r.Form.Get("code_verifier") == "codeChallenge" {
w.Header().Set("Content-Type", "application/json")
w.Write([]byte(`{
"access_token": "90d64460d14870c08c81352a05dedd3465940a7c",
"scope": "pubsub",
"token_type": "bearer",
"expires_in": 3600
}`))
}
}))
defer ts.Close()
conf := &oauth2.Config{
ClientID: "testClientID",
Scopes: []string{"pubsub"},
Endpoint: oauth2.Endpoint{
AuthURL: "testAuthCodeURL",
TokenURL: ts.URL,
},
}
pkce := PKCEParams{
Challenge: "codeChallenge",
ChallengeMethod: "plain",
Verifier: "codeChallenge",
}
tok, err := TokenSourceWithPKCE(context.Background(), conf, "testState", authhandler, &pkce).Token()
if err != nil {
t.Fatal(err)
}
if !tok.Valid() {
t.Errorf("got invalid token: %v", tok)
}
if got, want := tok.AccessToken, "90d64460d14870c08c81352a05dedd3465940a7c"; got != want {
t.Errorf("access token = %q; want %q", got, want)
}
if got, want := tok.TokenType, "bearer"; got != want {
t.Errorf("token type = %q; want %q", got, want)
}
if got := tok.Expiry.IsZero(); got {
t.Errorf("token expiry is zero = %v, want false", got)
}
scope := tok.Extra("scope")
if got, want := scope, "pubsub"; got != want {
t.Errorf("scope = %q; want %q", got, want)
}
}
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