Accept reva token as a bearer authentication

changelog/unreleased/reva-token-bearer.md

@@ -0,0 +1,3 @@
+Enhancement: Accept reva token as a bearer authentication
+
+https://github.com/cs3org/reva/pull/3315

internal/http/interceptors/auth/token/loader/loader.go

@@ -20,6 +20,7 @@ package loader
 
 import (
 	// Load core token strategies.
+	_ "github.com/cs3org/reva/internal/http/interceptors/auth/token/strategy/bearer"
 	_ "github.com/cs3org/reva/internal/http/interceptors/auth/token/strategy/header"
 	// Add your own here.
 )

internal/http/interceptors/auth/token/strategy/bearer/bearer.go

@@ -0,0 +1,43 @@
+// Copyright 2018-2021 CERN
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// In applying this license, CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+
+package header
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/cs3org/reva/internal/http/interceptors/auth/token/registry"
+	"github.com/cs3org/reva/pkg/auth"
+)
+
+func init() {
+	registry.Register("bearer", New)
+}
+
+type b struct{}
+
+// New returns a new auth strategy that checks for bearer auth.
+func New(m map[string]interface{}) (auth.TokenStrategy, error) {
+	return b{}, nil
+}
+
+func (b) GetToken(r *http.Request) string {
+	auth := r.Header.Get("Authorization")
+	return strings.TrimPrefix(auth, "Bearer ")
+}