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Add utilities supporting upcoming oauth2 functionality.

This commit is contained in:
Patrick Jones 2020-10-06 01:05:26 -07:00
parent 5d25da1a8d
commit 7792988ab8
4 changed files with 171 additions and 0 deletions
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39
google/internal/oauth2/clientAuthentication.go Normal file
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package externalaccount
import (
"encoding/base64"
"golang.org/x/oauth2"
"net/http"
"net/url"
)
// ClientAuthentication represents an OAuth client ID and secret and the mechanism for passing these credentials as stated in rfc6749#2.3.1
type ClientAuthentication struct {
//Can be either basic or request-body
AuthStyle oauth2.AuthStyle
ClientID string
ClientSecret string
}
func (c *ClientAuthentication) InjectAuthentication(values *url.Values, headers *http.Header) {
if c.ClientID == "" || c.ClientSecret == "" || values == nil || headers == nil {
return
}
switch c.AuthStyle {
case oauth2.AuthStyleInHeader:
plainHeader := c.ClientID + ":" + c.ClientSecret
headers.Add("Authorization", "Basic "+base64.StdEncoding.EncodeToString([]byte(plainHeader)))
case oauth2.AuthStyleInParams:
values.Set("client_id", c.ClientID)
values.Set("client_secret", c.ClientSecret)
case oauth2.AuthStyleAutoDetect:
values.Set("client_id", c.ClientID)
values.Set("client_secret", c.ClientSecret)
default:
values.Set("client_id", c.ClientID)
values.Set("client_secret", c.ClientSecret)
}
return
}

103
google/internal/oauth2/clientAuthentication_test.go Normal file
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package externalaccount
import (
"golang.org/x/oauth2"
"net/http"
"net/url"
"reflect"
"testing"
)
var clientID = "rbrgnognrhongo3bi4gb9ghg9g"
var clientSecret = "notsosecret"
var valuesH = url.Values {
"audience": []string{"32555940559.apps.googleusercontent.com"},
"grant_type": []string{"urn:ietf:params:oauth:grant-type:token-exchange"},
"requested_token_type": []string{"urn:ietf:params:oauth:token-type:access_token"},
"subject_token_type": []string{"urn:ietf:params:oauth:token-type:jwt"},
"subject_token": []string{"eyJhbGciOiJSUzI1NiIsImtpZCI6IjJjNmZhNmY1OTUwYTdjZTQ2NWZjZjI0N2FhMGIwOTQ4MjhhYzk1MmMiLCJ0eXAiOiJKV1QifQ.eyJpc3MiOiJodHRwczovL2FjY291bnRzLmdvb2dsZS5jb20iLCJhenAiOiIzMjU1NTk0MDU1OS5hcHBzLmdvb2dsZXVzZXJjb250ZW50LmNvbSIsImF1ZCI6IjMyNTU1OTQwNTU5LmFwcHMuZ29vZ2xldXNlcmNvbnRlbnQuY29tIiwic3ViIjoiMTEzMzE4NTQxMDA5MDU3Mzc4MzI4IiwiaGQiOiJnb29nbGUuY29tIiwiZW1haWwiOiJpdGh1cmllbEBnb29nbGUuY29tIiwiZW1haWxfdmVyaWZpZWQiOnRydWUsImF0X2hhc2giOiI5OVJVYVFrRHJsVDFZOUV0SzdiYXJnIiwiaWF0IjoxNjAxNTgxMzQ5LCJleHAiOjE2MDE1ODQ5NDl9.SZ-4DyDcogDh_CDUKHqPCiT8AKLg4zLMpPhGQzmcmHQ6cJiV0WRVMf5Lq911qsvuekgxfQpIdKNXlD6yk3FqvC2rjBbuEztMF-OD_2B8CEIYFlMLGuTQimJlUQksLKM-3B2ITRDCxnyEdaZik0OVssiy1CBTsllS5MgTFqic7w8w0Cd6diqNkfPFZRWyRYsrRDRlHHbH5_TUnv2wnLVHBHlNvU4wU2yyjDIoqOvTRp8jtXdq7K31CDhXd47-hXsVFQn2ZgzuUEAkH2Q6NIXACcVyZOrjBcZiOQI9IRWz-g03LzbzPSecO7I8dDrhqUSqMrdNUz_f8Kr8JFhuVMfVug"},
"scope": []string{"https://www.googleapis.com/auth/devstorage.full_control"},
}
var headerH = http.Header {
"Content-Type": []string{"application/x-www-form-urlencoded"},
}
var valuesP = url.Values {
"audience": []string{"32555940559.apps.googleusercontent.com"},
"grant_type": []string{"urn:ietf:params:oauth:grant-type:token-exchange"},
"requested_token_type": []string{"urn:ietf:params:oauth:token-type:access_token"},
"subject_token_type": []string{"urn:ietf:params:oauth:token-type:jwt"},
"subject_token": []string{"eyJhbGciOiJSUzI1NiIsImtpZCI6IjJjNmZhNmY1OTUwYTdjZTQ2NWZjZjI0N2FhMGIwOTQ4MjhhYzk1MmMiLCJ0eXAiOiJKV1QifQ.eyJpc3MiOiJodHRwczovL2FjY291bnRzLmdvb2dsZS5jb20iLCJhenAiOiIzMjU1NTk0MDU1OS5hcHBzLmdvb2dsZXVzZXJjb250ZW50LmNvbSIsImF1ZCI6IjMyNTU1OTQwNTU5LmFwcHMuZ29vZ2xldXNlcmNvbnRlbnQuY29tIiwic3ViIjoiMTEzMzE4NTQxMDA5MDU3Mzc4MzI4IiwiaGQiOiJnb29nbGUuY29tIiwiZW1haWwiOiJpdGh1cmllbEBnb29nbGUuY29tIiwiZW1haWxfdmVyaWZpZWQiOnRydWUsImF0X2hhc2giOiI5OVJVYVFrRHJsVDFZOUV0SzdiYXJnIiwiaWF0IjoxNjAxNTgxMzQ5LCJleHAiOjE2MDE1ODQ5NDl9.SZ-4DyDcogDh_CDUKHqPCiT8AKLg4zLMpPhGQzmcmHQ6cJiV0WRVMf5Lq911qsvuekgxfQpIdKNXlD6yk3FqvC2rjBbuEztMF-OD_2B8CEIYFlMLGuTQimJlUQksLKM-3B2ITRDCxnyEdaZik0OVssiy1CBTsllS5MgTFqic7w8w0Cd6diqNkfPFZRWyRYsrRDRlHHbH5_TUnv2wnLVHBHlNvU4wU2yyjDIoqOvTRp8jtXdq7K31CDhXd47-hXsVFQn2ZgzuUEAkH2Q6NIXACcVyZOrjBcZiOQI9IRWz-g03LzbzPSecO7I8dDrhqUSqMrdNUz_f8Kr8JFhuVMfVug"},
"scope": []string{"https://www.googleapis.com/auth/devstorage.full_control"},
}
var headerP = http.Header {
"Content-Type": []string{"application/x-www-form-urlencoded"},
}
func TestClientAuthentication_InjectHeaderAuthentication(t *testing.T) {
headerAuthentication := ClientAuthentication{
AuthStyle: oauth2.AuthStyleInHeader,
ClientID: clientID,
ClientSecret: clientSecret,
}
headerAuthentication.InjectAuthentication(&valuesH, &headerH)
if got, want := valuesH["audience"], []string{"32555940559.apps.googleusercontent.com"}; !reflect.DeepEqual(got, want) {
t.Errorf("audience = %q, want %q", got, want)
}
if got, want := valuesH["grant_type"], []string{"urn:ietf:params:oauth:grant-type:token-exchange"}; !reflect.DeepEqual(got, want) {
t.Errorf("grant_type = %q, want %q", got, want)
}
if got, want := valuesH["requested_token_type"], []string{"urn:ietf:params:oauth:token-type:access_token"}; !reflect.DeepEqual(got, want) {
t.Errorf("requested_token_type = %q, want %q", got, want)
}
if got, want := valuesH["subject_token_type"], []string{"urn:ietf:params:oauth:token-type:jwt"}; !reflect.DeepEqual(got, want) {
t.Errorf("subject_token_type = %q, want %q", got, want)
}
if got, want := valuesH["subject_token"], []string{"eyJhbGciOiJSUzI1NiIsImtpZCI6IjJjNmZhNmY1OTUwYTdjZTQ2NWZjZjI0N2FhMGIwOTQ4MjhhYzk1MmMiLCJ0eXAiOiJKV1QifQ.eyJpc3MiOiJodHRwczovL2FjY291bnRzLmdvb2dsZS5jb20iLCJhenAiOiIzMjU1NTk0MDU1OS5hcHBzLmdvb2dsZXVzZXJjb250ZW50LmNvbSIsImF1ZCI6IjMyNTU1OTQwNTU5LmFwcHMuZ29vZ2xldXNlcmNvbnRlbnQuY29tIiwic3ViIjoiMTEzMzE4NTQxMDA5MDU3Mzc4MzI4IiwiaGQiOiJnb29nbGUuY29tIiwiZW1haWwiOiJpdGh1cmllbEBnb29nbGUuY29tIiwiZW1haWxfdmVyaWZpZWQiOnRydWUsImF0X2hhc2giOiI5OVJVYVFrRHJsVDFZOUV0SzdiYXJnIiwiaWF0IjoxNjAxNTgxMzQ5LCJleHAiOjE2MDE1ODQ5NDl9.SZ-4DyDcogDh_CDUKHqPCiT8AKLg4zLMpPhGQzmcmHQ6cJiV0WRVMf5Lq911qsvuekgxfQpIdKNXlD6yk3FqvC2rjBbuEztMF-OD_2B8CEIYFlMLGuTQimJlUQksLKM-3B2ITRDCxnyEdaZik0OVssiy1CBTsllS5MgTFqic7w8w0Cd6diqNkfPFZRWyRYsrRDRlHHbH5_TUnv2wnLVHBHlNvU4wU2yyjDIoqOvTRp8jtXdq7K31CDhXd47-hXsVFQn2ZgzuUEAkH2Q6NIXACcVyZOrjBcZiOQI9IRWz-g03LzbzPSecO7I8dDrhqUSqMrdNUz_f8Kr8JFhuVMfVug"}; !reflect.DeepEqual(got, want) {
t.Errorf("subject_token = %q, want %q", got, want)
}
if got, want := valuesH["scope"], []string{"https://www.googleapis.com/auth/devstorage.full_control"}; !reflect.DeepEqual(got, want) {
t.Errorf("scope = %q, want %q", got, want)
}
if got, want := headerH["Authorization"],[]string{"Basic cmJyZ25vZ25yaG9uZ28zYmk0Z2I5Z2hnOWc6bm90c29zZWNyZXQ="}; !reflect.DeepEqual(got, want) {
t.Errorf("Authorization in header = %q, want %q", got, want)
}
}
func TestClientAuthentication_ParamsAuthentication(t *testing.T) {
paramsAuthentication := ClientAuthentication{
AuthStyle: oauth2.AuthStyleInParams,
ClientID: clientID,
ClientSecret: clientSecret,
}
paramsAuthentication.InjectAuthentication(&valuesP, &headerP)
if got, want := valuesP["audience"], []string{"32555940559.apps.googleusercontent.com"}; !reflect.DeepEqual(got, want) {
t.Errorf("audience = %q, want %q", got, want)
}
if got, want := valuesP["grant_type"], []string{"urn:ietf:params:oauth:grant-type:token-exchange"}; !reflect.DeepEqual(got, want) {
t.Errorf("grant_type = %q, want %q", got, want)
}
if got, want := valuesP["requested_token_type"], []string{"urn:ietf:params:oauth:token-type:access_token"}; !reflect.DeepEqual(got, want) {
t.Errorf("requested_token_type = %q, want %q", got, want)
}
if got, want := valuesP["subject_token_type"], []string{"urn:ietf:params:oauth:token-type:jwt"}; !reflect.DeepEqual(got, want) {
t.Errorf("subject_token_type = %q, want %q", got, want)
}
if got, want := valuesP["subject_token"], []string{"eyJhbGciOiJSUzI1NiIsImtpZCI6IjJjNmZhNmY1OTUwYTdjZTQ2NWZjZjI0N2FhMGIwOTQ4MjhhYzk1MmMiLCJ0eXAiOiJKV1QifQ.eyJpc3MiOiJodHRwczovL2FjY291bnRzLmdvb2dsZS5jb20iLCJhenAiOiIzMjU1NTk0MDU1OS5hcHBzLmdvb2dsZXVzZXJjb250ZW50LmNvbSIsImF1ZCI6IjMyNTU1OTQwNTU5LmFwcHMuZ29vZ2xldXNlcmNvbnRlbnQuY29tIiwic3ViIjoiMTEzMzE4NTQxMDA5MDU3Mzc4MzI4IiwiaGQiOiJnb29nbGUuY29tIiwiZW1haWwiOiJpdGh1cmllbEBnb29nbGUuY29tIiwiZW1haWxfdmVyaWZpZWQiOnRydWUsImF0X2hhc2giOiI5OVJVYVFrRHJsVDFZOUV0SzdiYXJnIiwiaWF0IjoxNjAxNTgxMzQ5LCJleHAiOjE2MDE1ODQ5NDl9.SZ-4DyDcogDh_CDUKHqPCiT8AKLg4zLMpPhGQzmcmHQ6cJiV0WRVMf5Lq911qsvuekgxfQpIdKNXlD6yk3FqvC2rjBbuEztMF-OD_2B8CEIYFlMLGuTQimJlUQksLKM-3B2ITRDCxnyEdaZik0OVssiy1CBTsllS5MgTFqic7w8w0Cd6diqNkfPFZRWyRYsrRDRlHHbH5_TUnv2wnLVHBHlNvU4wU2yyjDIoqOvTRp8jtXdq7K31CDhXd47-hXsVFQn2ZgzuUEAkH2Q6NIXACcVyZOrjBcZiOQI9IRWz-g03LzbzPSecO7I8dDrhqUSqMrdNUz_f8Kr8JFhuVMfVug"}; !reflect.DeepEqual(got, want) {
t.Errorf("subject_token = %q, want %q", got, want)
}
if got, want := valuesP["client_id"], []string{clientID}; !reflect.DeepEqual(got, want) {
t.Errorf("client_id = %q, want %q", got, want)
}
if got, want := valuesP["client_secret"], []string{clientSecret}; !reflect.DeepEqual(got, want) {
t.Errorf("client_secret = %q, want %q", got, want)
}
if got, want := valuesP["scope"], []string{"https://www.googleapis.com/auth/devstorage.full_control"}; !reflect.DeepEqual(got, want) {
t.Errorf("scope = %q, want %q", got, want)
}
}

14
google/internal/oauth2/err.go Normal file
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@ -0,0 +1,14 @@
package externalaccount
import "fmt"
//Struct for handling OAuth related error responses as stated in rfc6749#5.2
type Error struct {
Code string
URI string
Description string
}
func (err *Error) Error() string {
return fmt.Sprintf("got error code %s from %s: %s", err.Code, err.URI, err.Description)
}

15
google/internal/oauth2/err_test.go Normal file
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@ -0,0 +1,15 @@
package externalaccount
import "testing"
func TestError_Generator(t *testing.T) {
e := Error{
"42",
"http:thisIsAPlaceholder",
"The Answer!",
}
output := "got error code " + "42" + " from " + "http:thisIsAPlaceholder" + ": " + "The Answer!"
if got, want := e, output; e.Error() != output {
t.Errorf("Got error message %q; want %q", got, want)
}
}