X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/9cc572d6a44262e21251372e28b549cfc09e681a..a13547aec78a75da2174e083f6015280787cd597:/sdk/go/auth/auth.go

diff --git a/sdk/go/auth/auth.go b/sdk/go/auth/auth.go
index ad1d398c76..b6a85e05e7 100644
--- a/sdk/go/auth/auth.go
+++ b/sdk/go/auth/auth.go
@@ -5,6 +5,7 @@
 package auth
 
 import (
+	"context"
 	"encoding/base64"
 	"net/http"
 	"net/url"
@@ -15,11 +16,24 @@ type Credentials struct {
 	Tokens []string
 }
 
-func NewCredentials() *Credentials {
-	return &Credentials{Tokens: []string{}}
+func NewCredentials(tokens ...string) *Credentials {
+	return &Credentials{Tokens: tokens}
 }
 
-func NewCredentialsFromHTTPRequest(r *http.Request) *Credentials {
+func NewContext(ctx context.Context, c *Credentials) context.Context {
+	return context.WithValue(ctx, contextKeyCredentials{}, c)
+}
+
+func FromContext(ctx context.Context) (*Credentials, bool) {
+	c, ok := ctx.Value(contextKeyCredentials{}).(*Credentials)
+	return c, ok
+}
+
+func CredentialsFromRequest(r *http.Request) *Credentials {
+	if c, ok := FromContext(r.Context()); ok {
+		// preloaded by middleware
+		return c
+	}
 	c := NewCredentials()
 	c.LoadTokensFromHTTPRequest(r)
 	return c