Initial Commit

node_modules/@grpc/grpc-js/src/subchannel-address.ts

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+/*
+ * Copyright 2021 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.
+ *
+ */
+
+import { isIP } from 'net';
+
+export interface TcpSubchannelAddress {
+  port: number;
+  host: string;
+}
+
+export interface IpcSubchannelAddress {
+  path: string;
+}
+/**
+ * This represents a single backend address to connect to. This interface is a
+ * subset of net.SocketConnectOpts, i.e. the options described at
+ * https://nodejs.org/api/net.html#net_socket_connect_options_connectlistener.
+ * Those are in turn a subset of the options that can be passed to http2.connect.
+ */
+
+export type SubchannelAddress = TcpSubchannelAddress | IpcSubchannelAddress;
+
+export function isTcpSubchannelAddress(
+  address: SubchannelAddress
+): address is TcpSubchannelAddress {
+  return 'port' in address;
+}
+
+export function subchannelAddressEqual(
+  address1?: SubchannelAddress,
+  address2?: SubchannelAddress
+): boolean {
+  if (!address1 && !address2) {
+    return true;
+  }
+  if (!address1 || !address2) {
+    return false;
+  }
+  if (isTcpSubchannelAddress(address1)) {
+    return (
+      isTcpSubchannelAddress(address2) &&
+      address1.host === address2.host &&
+      address1.port === address2.port
+    );
+  } else {
+    return !isTcpSubchannelAddress(address2) && address1.path === address2.path;
+  }
+}
+
+export function subchannelAddressToString(address: SubchannelAddress): string {
+  if (isTcpSubchannelAddress(address)) {
+    return address.host + ':' + address.port;
+  } else {
+    return address.path;
+  }
+}
+
+const DEFAULT_PORT = 443;
+
+export function stringToSubchannelAddress(
+  addressString: string,
+  port?: number
+): SubchannelAddress {
+  if (isIP(addressString)) {
+    return {
+      host: addressString,
+      port: port ?? DEFAULT_PORT,
+    };
+  } else {
+    return {
+      path: addressString,
+    };
+  }
+}