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google: adding support for external account authorized user

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To support a new type of credential: `ExternalAccountAuthorizedUser`

* Refactor the common dependency STS to a separate package.
* Adding the `externalaccountauthorizeduser` package.

Change-Id: I9b9624f912d216b67a0d31945a50f057f747710b
GitHub-Last-Rev: 6e2aaff345
GitHub-Pull-Request: golang/oauth2#671
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/531095
Reviewed-by: Leo Siracusa <leosiracusa@google.com>
Reviewed-by: Alex Eitzman <eitzman@google.com>
Run-TryBot: Cody Oss <codyoss@google.com>
Reviewed-by: Cody Oss <codyoss@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This commit is contained in:
Jin Qin
2023-09-28 22:05:58 +00:00
committed by Cody Oss
parent 14b275c918
commit 43b6a7ba19
8 changed files with 534 additions and 63 deletions
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45
google/internal/stsexchange/clientauth.go Normal file
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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 stsexchange
import (
"encoding/base64"
"net/http"
"net/url"
"golang.org/x/oauth2"
)
// 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 {
// AuthStyle can be either basic or request-body
AuthStyle oauth2.AuthStyle
ClientID string
ClientSecret string
}
// InjectAuthentication is used to add authentication to a Secure Token Service exchange
// request. It modifies either the passed url.Values or http.Header depending on the desired
// authentication format.
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: // AuthStyleInHeader corresponds to basic authentication as defined in rfc7617#2
plainHeader := c.ClientID + ":" + c.ClientSecret
headers.Add("Authorization", "Basic "+base64.StdEncoding.EncodeToString([]byte(plainHeader)))
case oauth2.AuthStyleInParams: // AuthStyleInParams corresponds to request-body authentication with ClientID and ClientSecret in the message body.
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)
}
}