Initial connection handling

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Asher 2019-06-27 17:34:33 -05:00
parent 310bfe509e
commit 4861405683
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6 changed files with 363 additions and 85 deletions

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@ -52,6 +52,11 @@ How to [secure your setup](/doc/security/ssl.md).
## Development
- Clone this as `vs/src/server` in the VS Code source.
- Run `yarn watch-client`in the VS Code root.
- Run `node out/vs/server/main.js`.
- Visit `http://localhost:8443`.
### Known Issues
- Creating custom VS Code extensions and debugging them doesn't work.

28
connection.ts Normal file
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import { Emitter } from "vs/base/common/event";
import { PersistentProtocol, ISocket } from "vs/base/parts/ipc/common/ipc.net";
import { VSBuffer } from "vs/base/common/buffer";
export abstract class Connection {
protected readonly _onClose = new Emitter<void>();
public readonly onClose = this._onClose.event;
public constructor(private readonly protocol: PersistentProtocol) {
this.protocol.onSocketClose(() => {
// TODO: eventually we'll want to clean up the connection if nothing
// ever connects back to it
});
}
public reconnect(socket: ISocket, buffer: VSBuffer): void {
this.protocol.beginAcceptReconnection(socket, buffer);
this.protocol.endAcceptReconnection();
}
}
export class ManagementConnection extends Connection {
// in here they accept the connection
// to the ipc of the RemoteServer
}
export class ExtensionHostConnection extends Connection {
}

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main.js Normal file
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@ -0,0 +1 @@
require("../../bootstrap-amd").load("vs/server/server");

164
server.ts Normal file
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import * as fs from "fs";
import * as http from "http";
import * as net from "net";
import * as path from "path";
import * as util from "util";
import * as url from "url";
import { Connection } from "vs/server/connection";
import { ConnectionType } from "vs/platform/remote/common/remoteAgentConnection";
import { Emitter } from "vs/base/common/event";
import { ClientConnectionEvent } from "vs/base/parts/ipc/common/ipc";
import { Socket, Server as IServer } from "vs/server/socket";
enum HttpCode {
Ok = 200,
NotFound = 404,
BadRequest = 400,
}
class HttpError extends Error {
public constructor(message: string, public readonly code: number) {
super(message);
// @ts-ignore
this.name = this.constructor.name;
Error.captureStackTrace(this, this.constructor);
}
}
class Server implements IServer {
private readonly _onDidClientConnect = new Emitter<ClientConnectionEvent>();
public readonly onDidClientConnect = this._onDidClientConnect.event;
private readonly rootPath = path.resolve(__dirname, "../../..");
private readonly server: http.Server;
public readonly connections = new Map<ConnectionType, Map<string, Connection>>();
public constructor() {
this.server = http.createServer(async (request, response): Promise<void> => {
try {
const content = await this.handleRequest(request);
response.writeHead(HttpCode.Ok, {
"Cache-Control": "max-age=86400",
// TODO: ETag?
});
response.end(content);
} catch (error) {
response.writeHead(typeof error.code === "number" ? error.code : 500);
response.end(error.message);
}
});
this.server.on("upgrade", (request, socket) => {
this.handleUpgrade(request, socket);
});
this.server.on("error", (error) => {
console.error(error);
process.exit(1);
});
}
public dispose(): void {
this.connections.clear();
}
private async handleRequest(request: http.IncomingMessage): Promise<string | Buffer> {
if (request.method !== "GET") {
throw new HttpError(
`Unsupported method ${request.method}`,
HttpCode.BadRequest,
);
}
const requestPath = url.parse(request.url || "").pathname || "/";
if (requestPath === "/") {
const htmlPath = path.join(
this.rootPath,
'out/vs/code/browser/workbench/workbench.html',
);
let html = await util.promisify(fs.readFile)(htmlPath, "utf8");
const options = {
WEBVIEW_ENDPOINT: {},
WORKBENCH_WEB_CONGIGURATION: {
remoteAuthority: request.headers.host,
},
REMOTE_USER_DATA_URI: {
scheme: "http",
authority: request.headers.host,
path: "/",
},
PRODUCT_CONFIGURATION: {},
CONNECTION_AUTH_TOKEN: {}
};
Object.keys(options).forEach((key) => {
html = html.replace(`"{{${key}}}"`, `'${JSON.stringify(options[key])}'`);
});
html = html.replace('{{WEBVIEW_ENDPOINT}}', JSON.stringify(options.WEBVIEW_ENDPOINT));
return html;
}
try {
const content = await util.promisify(fs.readFile)(
path.join(this.rootPath, requestPath),
);
return content;
} catch (error) {
if (error.code === "ENOENT" || error.code === "EISDIR") {
throw new HttpError("Not found", HttpCode.NotFound);
}
throw error;
}
}
private handleUpgrade(request: http.IncomingMessage, socket: net.Socket): void {
if (request.headers.upgrade !== "websocket") {
return socket.end("HTTP/1.1 400 Bad Request");
}
const options = {
reconnectionToken: "",
reconnection: false,
skipWebSocketFrames: false,
};
if (request.url) {
const query = url.parse(request.url, true).query;
if (query.reconnectionToken) {
options.reconnectionToken = query.reconnectionToken as string;
}
if (query.reconnection === "true") {
options.reconnection = true;
}
if (query.skipWebSocketFrames === "true") {
options.skipWebSocketFrames = true;
}
}
const nodeSocket = new Socket(socket, options);
nodeSocket.upgrade(request.headers["sec-websocket-key"] as string);
nodeSocket.handshake(this);
}
public listen(): void {
const port = 8443;
this.server.listen(port, () => {
const address = this.server.address();
const location = typeof address === "string"
? address
: `port ${address.port}`;
console.log(`Listening on ${location}`);
console.log(`Serving ${this.rootPath}`);
});
}
}
const server = new Server();
server.listen();

161
socket.ts Normal file
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@ -0,0 +1,161 @@
import * as crypto from "crypto";
import * as net from "net";
import { AuthRequest, ConnectionType, ConnectionTypeRequest, HandshakeMessage } from "vs/platform/remote/common/remoteAgentConnection";
import { NodeSocket, WebSocketNodeSocket } from "vs/base/parts/ipc/node/ipc.net";
import { PersistentProtocol, ISocket } from "vs/base/parts/ipc/common/ipc.net";
import { VSBuffer } from "vs/base/common/buffer";
import { Connection, ExtensionHostConnection, ManagementConnection } from "vs/server/connection";
export interface SocketOptions {
readonly reconnectionToken: string;
readonly reconnection: boolean;
readonly skipWebSocketFrames: boolean;
}
export interface Server {
readonly connections: Map<ConnectionType, Map<string, Connection>>;
}
export class Socket {
private nodeSocket: ISocket;
public protocol: PersistentProtocol;
public constructor(private readonly socket: net.Socket, private readonly options: SocketOptions) {
socket.on("error", () => this.dispose());
this.nodeSocket = new NodeSocket(socket);
if (!this.options.skipWebSocketFrames) {
this.nodeSocket = new WebSocketNodeSocket(this.nodeSocket as NodeSocket);
}
this.protocol = new PersistentProtocol(this.nodeSocket);
}
/**
* Upgrade the connection into a web socket.
*/
public upgrade(secWebsocketKey: string): void {
// This magic value is specified by the websocket spec.
const magic = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
const reply = crypto.createHash("sha1")
.update(secWebsocketKey + magic)
.digest("base64");
this.socket.write([
"HTTP/1.1 101 Switching Protocols",
"Upgrade: websocket",
"Connection: Upgrade",
`Sec-WebSocket-Accept: ${reply}`,
].join("\r\n") + "\r\n\r\n");
}
public dispose(): void {
this.nodeSocket.dispose();
this.protocol.dispose();
this.nodeSocket = undefined!;
this.protocol = undefined!;
}
public handshake(server: Server): void {
const handler = this.protocol.onControlMessage((rawMessage) => {
const message = JSON.parse(rawMessage.toString());
switch (message.type) {
case "auth": return this.authenticate(message);
case "connectionType":
handler.dispose();
return this.connect(message, server);
case "default":
return this.dispose();
}
});
}
/**
* TODO: This ignores the authentication process entirely for now.
*/
private authenticate(_message: AuthRequest): void {
this.sendControl({
type: "sign",
data: "",
});
}
private connect(message: ConnectionTypeRequest, server: Server): void {
switch (message.desiredConnectionType) {
case ConnectionType.ExtensionHost:
case ConnectionType.Management:
const debugPort = this.getDebugPort();
const ok = message.desiredConnectionType === ConnectionType.ExtensionHost
? (debugPort ? { debugPort } : {})
: { type: "ok" };
if (!server.connections.has(message.desiredConnectionType)) {
server.connections.set(message.desiredConnectionType, new Map());
}
const connections = server.connections.get(message.desiredConnectionType)!;
if (this.options.reconnection && connections.has(this.options.reconnectionToken)) {
this.sendControl(ok);
const buffer = this.protocol.readEntireBuffer();
this.protocol.dispose();
return connections.get(this.options.reconnectionToken)!
.reconnect(this.nodeSocket, buffer);
}
if (this.options.reconnection || connections.has(this.options.reconnectionToken)) {
this.sendControl({
type: "error",
reason: this.options.reconnection
? "Unrecognized reconnection token"
: "Duplicate reconnection token",
});
return this.dispose();
}
this.sendControl(ok);
const connection = message.desiredConnectionType === ConnectionType.Management
? new ManagementConnection(this.protocol)
: new ExtensionHostConnection(this.protocol);
connections.set(this.options.reconnectionToken, connection);
connection.onClose(() => {
connections.delete(this.options.reconnectionToken);
});
break;
case ConnectionType.Tunnel:
return this.tunnel();
default:
this.sendControl({
type: "error",
reason: "Unrecognized connection type",
});
return this.dispose();
}
}
/**
* TODO: implement.
*/
private tunnel(): void {
this.sendControl({
type: "error",
reason: "Tunnel is not implemented yet",
});
this.dispose();
}
/**
* TODO: implement.
*/
private getDebugPort(): number | undefined {
return undefined;
}
/**
* Send a handshake message. In the case of the extension host, it just sends
* back a debug port.
*/
private sendControl(message: HandshakeMessage | { debugPort?: number } ): void {
this.protocol.sendControl(VSBuffer.fromString(JSON.stringify(message)));
}
}

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@ -1,89 +1,8 @@
{
"rulesDirectory": "./rules/dist",
"extends": [
"../../../tslint.json"
],
"rules": {
"only-arrow-functions": true,
"curly-statement-newlines": true,
"no-block-padding": true,
"adjacent-overload-signatures": true,
"align": true,
"await-promise": [true, "Thenable"],
"class-name": true,
"eofline": true,
"import-spacing": true,
"indent": [true, "tabs"],
"no-angle-bracket-type-assertion": false,
"no-bitwise": false,
"no-any": true,
"newline-before-return": true,
"no-console": true,
"no-duplicate-imports": true,
"no-consecutive-blank-lines": true,
"no-empty": true,
"no-floating-promises": true,
"no-return-await": true,
"no-var-keyword": true,
"no-trailing-whitespace": true,
"no-redundant-jsdoc": true,
"no-implicit-dependencies": false,
"no-boolean-literal-compare": true,
"prefer-readonly": true,
"deprecation": true,
"semicolon": true,
"one-line": [
true,
"check-catch",
"check-finally",
"check-else",
"check-whitespace",
"check-open-brace"
],
"completed-docs": {
"options": [
true,
"enums",
"functions",
"methods",
"classes"
],
"severity": "warning"
},
"no-unused-expression": [
true,
"allow-fast-null-checks"
],
"curly": [
true
],
"quotemark": [
true,
"double",
"avoid-escape",
"avoid-template"
],
"trailing-comma": [
true,
{
"multiline": "always",
"singleline": "never",
"esSpecCompliant": true
}
],
"space-before-function-paren": [
false,
"always"
],
"member-access": [
true,
"check-accessor",
"check-constructor",
"check-parameter-property"
],
"typedef": [
true,
"call-signature",
"arrow-call-signature",
"parameter",
"property-declaration"
]
"no-unexternalized-strings": false
}
}