From bf6190841e8b6cd3a216bc056e5b71c73e18c410 Mon Sep 17 00:00:00 2001
From: Eric Billingsley <eric@calculi.com>
Date: Fri, 8 Jun 2018 15:19:12 -0700
Subject: [PATCH] plumbing/transport: http, Adds token authentication support
 [Fixes #858]

Signed-off-by: Eric Billingsley <ebilling@babrains.com>
---
 _examples/branch/main.go               |  2 +-
 plumbing/transport/http/common.go      | 25 +++++++++++++++++++++++++
 plumbing/transport/http/common_test.go | 13 +++++++++++++
 3 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/_examples/branch/main.go b/_examples/branch/main.go
index fa1ad0182..ff33ead54 100644
--- a/_examples/branch/main.go
+++ b/_examples/branch/main.go
@@ -28,7 +28,7 @@ func main() {
 
 	// Create a new plumbing.HashReference object with the name of the branch
 	// and the hash from the HEAD. The reference name should be a full reference
-	// name and now a abbreviated one, as is used on the git cli.
+	// name and not an abbreviated one, as is used on the git cli.
 	//
 	// For tags we should use `refs/tags/%s` instead of `refs/heads/%s` used
 	// for branches.
diff --git a/plumbing/transport/http/common.go b/plumbing/transport/http/common.go
index 2c337b77a..c03484646 100644
--- a/plumbing/transport/http/common.go
+++ b/plumbing/transport/http/common.go
@@ -201,6 +201,31 @@ func (a *BasicAuth) String() string {
 	return fmt.Sprintf("%s - %s:%s", a.Name(), a.Username, masked)
 }
 
+// TokenAuth implements the go-git http.AuthMethod and transport.AuthMethod interfaces
+type TokenAuth struct {
+	Token string
+}
+
+func (a *TokenAuth) setAuth(r *http.Request) {
+	if a == nil {
+		return
+	}
+	r.Header.Add("Authorization", fmt.Sprintf("Bearer %s", a.Token))
+}
+
+// Name is name of the auth
+func (a *TokenAuth) Name() string {
+	return "http-token-auth"
+}
+
+func (a *TokenAuth) String() string {
+	masked := "*******"
+	if a.Token == "" {
+		masked = "<empty>"
+	}
+	return fmt.Sprintf("%s - %s", a.Name(), masked)
+}
+
 // Err is a dedicated error to return errors based on status code
 type Err struct {
 	Response *http.Response
diff --git a/plumbing/transport/http/common_test.go b/plumbing/transport/http/common_test.go
index 8d57996c5..71eede48f 100644
--- a/plumbing/transport/http/common_test.go
+++ b/plumbing/transport/http/common_test.go
@@ -54,6 +54,19 @@ func (s *ClientSuite) TestNewBasicAuth(c *C) {
 	c.Assert(a.String(), Equals, "http-basic-auth - foo:*******")
 }
 
+func (s *ClientSuite) TestNewTokenAuth(c *C) {
+	a := &TokenAuth{"OAUTH-TOKEN-TEXT"}
+
+	c.Assert(a.Name(), Equals, "http-token-auth")
+	c.Assert(a.String(), Equals, "http-token-auth - *******")
+
+	// Check header is set correctly
+	req, err := http.NewRequest("GET", "https://github.com/git-fixtures/basic", nil)
+	c.Assert(err, Equals, nil)
+	a.setAuth(req)
+	c.Assert(req.Header.Get("Authorization"), Equals, "Bearer OAUTH-TOKEN-TEXT")
+}
+
 func (s *ClientSuite) TestNewErrOK(c *C) {
 	res := &http.Response{StatusCode: http.StatusOK}
 	err := NewErr(res)