snapshot of https://github.com/grpc/grpc-go.git (master, 2026-09-15; blobs > 131072B omitted)

xds/bootstrap/credentials.go

@@ -0,0 +1,85 @@
+/*
+ *
+ * Copyright 2024 gRPC authors.
+ *
+ * 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.
+ *
+ */
+
+package bootstrap
+
+import (
+	"encoding/json"
+
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/credentials/google"
+	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/grpc/internal/xds/bootstrap/jwtcreds"
+	"google.golang.org/grpc/internal/xds/bootstrap/tlscreds"
+)
+
+func init() {
+	RegisterChannelCredentials(&insecureCredsBuilder{})
+	RegisterChannelCredentials(&googleDefaultCredsBuilder{})
+	RegisterChannelCredentials(&tlsCredsBuilder{})
+
+	RegisterCallCredentials(&jwtCallCredsBuilder{})
+}
+
+// insecureCredsBuilder implements the `ChannelCredentials` interface defined in
+// package `xds/bootstrap` and encapsulates an insecure credential.
+type insecureCredsBuilder struct{}
+
+func (i *insecureCredsBuilder) Build(json.RawMessage) (credentials.Bundle, func(), error) {
+	return insecure.NewBundle(), func() {}, nil
+}
+
+func (i *insecureCredsBuilder) Name() string {
+	return "insecure"
+}
+
+// tlsCredsBuilder implements the `ChannelCredentials` interface defined in
+// package `xds/bootstrap` and encapsulates a TLS credential.
+type tlsCredsBuilder struct{}
+
+func (t *tlsCredsBuilder) Build(config json.RawMessage) (credentials.Bundle, func(), error) {
+	return tlscreds.NewBundle(config)
+}
+
+func (t *tlsCredsBuilder) Name() string {
+	return "tls"
+}
+
+// googleDefaultCredsBuilder implements the `ChannelCredentials` interface defined in
+// package `xds/bootstrap` and encapsulates a Google Default credential.
+type googleDefaultCredsBuilder struct{}
+
+func (d *googleDefaultCredsBuilder) Build(json.RawMessage) (credentials.Bundle, func(), error) {
+	return google.NewDefaultCredentials(), func() {}, nil
+}
+
+func (d *googleDefaultCredsBuilder) Name() string {
+	return "google_default"
+}
+
+// jwtCallCredsBuilder implements the `CallCredentials` interface defined in
+// package `xds/bootstrap` and encapsulates JWT call credentials.
+type jwtCallCredsBuilder struct{}
+
+func (j *jwtCallCredsBuilder) Build(configJSON json.RawMessage) (credentials.PerRPCCredentials, func(), error) {
+	return jwtcreds.NewCallCredentials(configJSON)
+}
+
+func (j *jwtCallCredsBuilder) Name() string {
+	return "jwt_token_file"
+}