microsoft/vscode-react-native
Publicmirrored from https://github.com/microsoft/vscode-react-nativeAvailable
src/extension/extensionServer.ts
112lines · 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 {ILaunchArgs} from "../common/launchArgs"; |
| 7 | import * as Q from "q"; |
| 8 | import {SettingsHelper} from "./settingsHelper"; |
| 9 | import * as vscode from "vscode"; |
| 10 | |
| 11 | |
| 12 | export class ExtensionServer implements vscode.Disposable { |
| 13 | |
| 14 | private serverInstance: http.Server = null; |
| 15 | |
| 16 | /** |
| 17 | * Starts the server. |
| 18 | */ |
| 19 | public setup(): Q.Promise<void> { |
| 20 | |
| 21 | let deferred = Q.defer<void>(); |
| 22 | |
| 23 | let requestHandler = (request: http.IncomingMessage, response: http.ServerResponse) => { |
| 24 | this.handleIncomingMessage(request, response); |
| 25 | }; |
| 26 | |
| 27 | let launchCallback = (error: any) => { |
| 28 | if (error) { |
| 29 | deferred.reject(error); |
| 30 | } else { |
| 31 | deferred.resolve(null); |
| 32 | } |
| 33 | }; |
| 34 | |
| 35 | let port = em.ServerDefaultParams.PORT; |
| 36 | SettingsHelper.readLaunchJson() |
| 37 | .then((launchJson: any) => { |
| 38 | if (launchJson) { |
| 39 | /* take the fist configuration that specifies the port */ |
| 40 | port = (<Array<ILaunchArgs>>launchJson.configurations) |
| 41 | .filter((configuration: ILaunchArgs, index: number, array: any[]) => { |
| 42 | return !!configuration.extensionServerPort; |
| 43 | })[0].extensionServerPort; |
| 44 | } |
| 45 | }) |
| 46 | .fail(() => { /* using default port in case of any error */ }) |
| 47 | .done(() => { |
| 48 | console.log("Using port: " + port); |
| 49 | this.serverInstance = http.createServer(requestHandler); |
| 50 | this.serverInstance.listen(port, null, null, launchCallback); |
| 51 | }); |
| 52 | |
| 53 | return deferred.promise; |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Stops the server. |
| 58 | */ |
| 59 | public dispose(): void { |
| 60 | if (this.serverInstance) { |
| 61 | this.serverInstance.close(); |
| 62 | this.serverInstance = null; |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * HTTP request handler. |
| 68 | */ |
| 69 | private handleIncomingMessage(message: http.IncomingMessage, response: http.ServerResponse): void { |
| 70 | let body = ""; |
| 71 | message.on("data", (chunk: string) => { |
| 72 | body += chunk; |
| 73 | }); |
| 74 | |
| 75 | message.on("end", () => { |
| 76 | let arg: any = JSON.parse(body); |
| 77 | let extensionMessage: em.ExtensionIncomingMessage = <any>em.ExtensionIncomingMessage[<any>message.url.substring(1)]; |
| 78 | console.log("Received message: " + message.url); |
| 79 | |
| 80 | this.handleExtensionMessage(extensionMessage, arg) |
| 81 | .then(result => { |
| 82 | response.writeHead(200, "OK", { "Content-Type": "application/json" }); |
| 83 | response.end(JSON.stringify(result)); |
| 84 | }) |
| 85 | .catch(() => { |
| 86 | response.writeHead(404, "Not Found"); |
| 87 | response.end(); |
| 88 | }) |
| 89 | .done(); |
| 90 | }); |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Extension message handler. |
| 95 | */ |
| 96 | private handleExtensionMessage(message: em.ExtensionIncomingMessage, args: any): Q.Promise<any> { |
| 97 | let deferred = Q.defer<any>(); |
| 98 | /* handle each extension message here and return the result */ |
| 99 | switch (message) { |
| 100 | case em.ExtensionIncomingMessage.START_PACKAGER: |
| 101 | /* TODO */ |
| 102 | break; |
| 103 | case em.ExtensionIncomingMessage.STOP_PACKAGER: |
| 104 | /* TODO */ |
| 105 | break; |
| 106 | default: |
| 107 | throw new Error("Invalid message: " + message); |
| 108 | } |
| 109 | |
| 110 | return deferred.promise; |
| 111 | } |
| 112 | } |