microsoft/vscode-react-native
Publicmirrored from https://github.com/microsoft/vscode-react-nativeAvailable
src/extension/extensionServer.ts
87lines · modecode
| 1 | // Copyright (c) Microsoft Corporation. All rights reserved. |
| 2 | // Licensed under the MIT license. See LICENSE file in the project root for details. |
| 3 | |
| 4 | import * as em from "../common/extensionMessaging"; |
| 5 | import * as http from "http"; |
| 6 | import * as vscode from "vscode"; |
| 7 | import * as Q from "q"; |
| 8 | |
| 9 | export class ExtensionServer implements vscode.Disposable { |
| 10 | |
| 11 | private serverInstance: http.Server = null; |
| 12 | |
| 13 | /** |
| 14 | * Starts the server. |
| 15 | */ |
| 16 | public setup(): Q.Promise<void> { |
| 17 | |
| 18 | let deferred = Q.defer<void>(); |
| 19 | |
| 20 | let requestHandler = (request: http.IncomingMessage, response: http.ServerResponse) => { |
| 21 | this.handleIncomingMessage(request, response); |
| 22 | }; |
| 23 | |
| 24 | let launchCallback = (error: any) => { |
| 25 | if (error) { |
| 26 | deferred.reject(error); |
| 27 | } else { |
| 28 | deferred.resolve(null); |
| 29 | } |
| 30 | }; |
| 31 | |
| 32 | this.serverInstance = http.createServer(requestHandler); |
| 33 | this.serverInstance.listen(em.ServerParams.PORT, null, null, launchCallback); |
| 34 | |
| 35 | return deferred.promise; |
| 36 | } |
| 37 | |
| 38 | /** |
| 39 | * Stops the server. |
| 40 | */ |
| 41 | public dispose(): void { |
| 42 | if (this.serverInstance) { |
| 43 | this.serverInstance.close(); |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * HTTP request handler. |
| 49 | */ |
| 50 | private handleIncomingMessage(message: http.IncomingMessage, response: http.ServerResponse): void { |
| 51 | let body = ""; |
| 52 | message.on("data", (chunk: string) => { |
| 53 | body += chunk; |
| 54 | }); |
| 55 | |
| 56 | message.on("end", () => { |
| 57 | let extensionMessage: em.MessageWithArgs<em.ExtensionIncomingMessage> = JSON.parse(body); |
| 58 | console.log("Received message: " + extensionMessage.message); |
| 59 | this.handleExtensionMessage(extensionMessage) |
| 60 | .then(result => { |
| 61 | response.writeHead(200, "OK", { "Content-Type": "application/json" }); |
| 62 | response.end(JSON.stringify(result)); |
| 63 | }) |
| 64 | .done(); |
| 65 | }); |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * Extension message handler. |
| 70 | */ |
| 71 | private handleExtensionMessage(messageWithArgs: em.MessageWithArgs<em.ExtensionIncomingMessage>): Q.Promise<any> { |
| 72 | let deferred = Q.defer<any>(); |
| 73 | /* handle each extension message here and return the result */ |
| 74 | switch (messageWithArgs.message) { |
| 75 | case em.ExtensionIncomingMessage.START_PACKAGER: |
| 76 | /* TODO */ |
| 77 | break; |
| 78 | case em.ExtensionIncomingMessage.STOP_PACKAGER: |
| 79 | /* TODO */ |
| 80 | break; |
| 81 | default: |
| 82 | throw new Error("Invalid message: " + messageWithArgs.message); |
| 83 | } |
| 84 | |
| 85 | return deferred.promise; |
| 86 | } |
| 87 | } |