feat: new openid connect authentication layer

internal/proxy/director/context.go

@@ -2,6 +2,7 @@ package director
 
 import (
 	"context"
+	"net/url"
 
 	"forge.cadoles.com/cadoles/bouncer/internal/store"
 	"github.com/pkg/errors"
@@ -10,8 +11,9 @@ import (
 type contextKey string
 
 const (
-	contextKeyProxy  contextKey = "proxy"
-	contextKeyLayers contextKey = "layers"
+	contextKeyProxy       contextKey = "proxy"
+	contextKeyLayers      contextKey = "layers"
+	contextKeyOriginalURL contextKey = "originalURL"
 )
 
 var (
@@ -19,6 +21,19 @@ var (
 	errUnexpectedContextValue = errors.New("unexpected context value")
 )
 
+func withOriginalURL(ctx context.Context, url *url.URL) context.Context {
+	return context.WithValue(ctx, contextKeyOriginalURL, url)
+}
+
+func OriginalURL(ctx context.Context) (*url.URL, error) {
+	url, err := ctxValue[*url.URL](ctx, contextKeyOriginalURL)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	return url, nil
+}
+
 func withProxy(ctx context.Context, proxy *store.Proxy) context.Context {
 	return context.WithValue(ctx, contextKeyProxy, proxy)
 }