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vscode-react-native/src/extension

src/extension/extensionServer.ts

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1// Copyright (c) Microsoft Corporation. All rights reserved.
2// Licensed under the MIT license. See LICENSE file in the project root for details.
3
4import * as net from "net";
5import * as Q from "q";
6import * as vscode from "vscode";
7
8import * as em from "../common/extensionMessaging";
9import {Log} from "../common/log/log";
10import {LogLevel} from "../common/log/logHelper";
11import {Packager, PackagerRunAs} from "../common/packager";
12import {PackagerStatus, PackagerStatusIndicator} from "./packagerStatusIndicator";
13import {LogCatMonitor} from "./android/logCatMonitor";
14import {FileSystem} from "../common/node/fileSystem";
15import {ConfigurationReader} from "../common/configurationReader";
16import {SettingsHelper} from "./settingsHelper";
17import {Telemetry} from "../common/telemetry";
18import {ExponentHelper} from "../common/exponent/exponentHelper";
19
20export class ExtensionServer implements vscode.Disposable {
21 private serverInstance: net.Server = null;
22 private messageHandlerDictionary: { [id: number]: ((...argArray: any[]) => Q.Promise<any>) } = {};
23 private reactNativePackager: Packager;
24 private reactNativePackageStatusIndicator: PackagerStatusIndicator;
25 private pipePath: string;
26 private logCatMonitor: LogCatMonitor = null;
27 private exponentHelper: ExponentHelper;
28
29 public constructor(projectRootPath: string, reactNativePackager: Packager, packagerStatusIndicator: PackagerStatusIndicator, exponentHelper: ExponentHelper) {
30
31 this.pipePath = new em.MessagingChannel(projectRootPath).getPath();
32 this.reactNativePackager = reactNativePackager;
33 this.reactNativePackageStatusIndicator = packagerStatusIndicator;
34 this.exponentHelper = exponentHelper;
35
36 /* register handlers for all messages */
37 this.messageHandlerDictionary[em.ExtensionMessage.START_PACKAGER] = this.startPackager;
38 this.messageHandlerDictionary[em.ExtensionMessage.STOP_PACKAGER] = this.stopPackager;
39 this.messageHandlerDictionary[em.ExtensionMessage.RESTART_PACKAGER] = this.restartPackager;
40 this.messageHandlerDictionary[em.ExtensionMessage.PREWARM_BUNDLE_CACHE] = this.prewarmBundleCache;
41 this.messageHandlerDictionary[em.ExtensionMessage.START_MONITORING_LOGCAT] = this.startMonitoringLogCat;
42 this.messageHandlerDictionary[em.ExtensionMessage.STOP_MONITORING_LOGCAT] = this.stopMonitoringLogCat;
43 this.messageHandlerDictionary[em.ExtensionMessage.GET_PACKAGER_PORT] = this.getPackagerPort;
44 this.messageHandlerDictionary[em.ExtensionMessage.SEND_TELEMETRY] = this.sendTelemetry;
45 this.messageHandlerDictionary[em.ExtensionMessage.OPEN_FILE_AT_LOCATION] = this.openFileAtLocation;
46 this.messageHandlerDictionary[em.ExtensionMessage.START_EXPONENT_PACKAGER] = this.startExponentPackager;
47 this.messageHandlerDictionary[em.ExtensionMessage.SHOW_INFORMATION_MESSAGE] = this.showInformationMessage;
48 }
49
50 /**
51 * Starts the server.
52 */
53 public setup(): Q.Promise<void> {
54
55 let deferred = Q.defer<void>();
56
57 let launchCallback = (error: any) => {
58 Log.logInternalMessage(LogLevel.Info, `Extension messaging server started at ${this.pipePath}.`);
59 if (error) {
60 deferred.reject(error);
61 } else {
62 deferred.resolve(null);
63 }
64 };
65
66 this.serverInstance = net.createServer(this.handleSocket.bind(this));
67 this.serverInstance.on("error", this.recoverServer.bind(this));
68 this.serverInstance.listen(this.pipePath, launchCallback);
69
70 return deferred.promise;
71 }
72
73 /**
74 * Stops the server.
75 */
76 public dispose(): void {
77 if (this.serverInstance) {
78 this.serverInstance.close();
79 this.serverInstance = null;
80 }
81
82 this.stopMonitoringLogCat();
83 }
84
85 /**
86 * Message handler for GET_PACKAGER_PORT.
87 */
88 private getPackagerPort(): Q.Promise<number> {
89 return Q(SettingsHelper.getPackagerPort());
90 }
91
92 /**
93 * Message handler for START_PACKAGER.
94 */
95 private startPackager(port?: any): Q.Promise<any> {
96 return this.reactNativePackager.isRunning().then((running) => {
97 if (running) {
98 if (this.reactNativePackager.getRunningAs() !== PackagerRunAs.REACT_NATIVE) {
99 return this.reactNativePackager.stop().then(() =>
100 this.reactNativePackageStatusIndicator.updatePackagerStatus(PackagerStatus.PACKAGER_STOPPED)
101 );
102 }
103
104 Log.logMessage("Attaching to running React Native packager");
105 }
106 }).then(() =>
107 this.exponentHelper.configureReactNativeEnvironment()
108 ).then(() => {
109 const portToUse = ConfigurationReader.readIntWithDefaultSync(port, SettingsHelper.getPackagerPort());
110 return this.reactNativePackager.startAsReactNative(portToUse);
111 })
112 .then(() =>
113 this.reactNativePackageStatusIndicator.updatePackagerStatus(PackagerStatus.PACKAGER_STARTED));
114 }
115
116 /**
117 * Message handler for START_EXPONENT_PACKAGER.
118 */
119 private startExponentPackager(port?: any): Q.Promise<any> {
120 return this.reactNativePackager.isRunning().then((running) => {
121 if (running) {
122 if (this.reactNativePackager.getRunningAs() !== PackagerRunAs.EXPONENT) {
123 return this.reactNativePackager.stop().then(() =>
124 this.reactNativePackageStatusIndicator.updatePackagerStatus(PackagerStatus.PACKAGER_STOPPED));
125 }
126
127 Log.logMessage("Attaching to running Exponent packager");
128 }
129 }).then(() =>
130 this.exponentHelper.configureExponentEnvironment()
131 ).then(() =>
132 this.exponentHelper.loginToExponent(
133 (message, password) => { return Q(vscode.window.showInputBox({ placeHolder: message, password: password })); },
134 (message) => { return Q(vscode.window.showInformationMessage(message)); }
135 ))
136 .then(() => {
137 const portToUse = ConfigurationReader.readIntWithDefaultSync(port, SettingsHelper.getPackagerPort());
138 return this.reactNativePackager.startAsExponent(portToUse);
139 })
140 .then(exponentUrl => {
141 vscode.commands.executeCommand("vscode.previewHtml", vscode.Uri.parse(exponentUrl), 1, "Expo QR code");
142 this.reactNativePackageStatusIndicator.updatePackagerStatus(PackagerStatus.EXPONENT_PACKAGER_STARTED);
143 return exponentUrl;
144 });
145 }
146
147 /**
148 * Message handler for STOP_PACKAGER.
149 */
150 private stopPackager(): Q.Promise<any> {
151 return this.reactNativePackager.stop()
152 .then(() => this.reactNativePackageStatusIndicator.updatePackagerStatus(PackagerStatus.PACKAGER_STOPPED));
153 }
154
155 /**
156 * Message handler for RESTART_PACKAGER.
157 */
158 private restartPackager(port?: any): Q.Promise<any> {
159 const portToUse = ConfigurationReader.readIntWithDefaultSync(port, SettingsHelper.getPackagerPort());
160 return this.reactNativePackager.restart(portToUse)
161 .then(() =>
162 this.reactNativePackageStatusIndicator.updatePackagerStatus(PackagerStatus.PACKAGER_STARTED));
163 }
164
165 /**
166 * Message handler for PREWARM_BUNDLE_CACHE.
167 */
168 private prewarmBundleCache(platform: string): Q.Promise<any> {
169 return this.reactNativePackager.prewarmBundleCache(platform);
170 }
171
172 /**
173 * Message handler for START_MONITORING_LOGCAT.
174 */
175 private startMonitoringLogCat(deviceId: string, logCatArguments: string): Q.Promise<any> {
176 this.stopMonitoringLogCat(); // Stop previous logcat monitor if it's running
177
178 // this.logCatMonitor can be mutated, so we store it locally too
179 const logCatMonitor = this.logCatMonitor = new LogCatMonitor(deviceId, logCatArguments);
180 logCatMonitor.start() // The LogCat will continue running forever, so we don't wait for it
181 .catch(error =>
182 Log.logWarning("Error while monitoring LogCat", error))
183 .done();
184
185 return Q.resolve<void>(void 0);
186 }
187
188 /**
189 * Message handler for OPEN_FILE_AT_LOCATION
190 */
191 private openFileAtLocation(filename: string, lineNumber: number): Q.Promise<void> {
192 return Q(vscode.workspace.openTextDocument(vscode.Uri.file(filename)).then((document: vscode.TextDocument) => {
193 return vscode.window.showTextDocument(document).then((editor: vscode.TextEditor) => {
194 let range = editor.document.lineAt(lineNumber - 1).range;
195 editor.selection = new vscode.Selection(range.start, range.end);
196 editor.revealRange(range, vscode.TextEditorRevealType.InCenter);
197 });
198 }));
199 }
200
201 private stopMonitoringLogCat(): Q.Promise<void> {
202 if (this.logCatMonitor) {
203 this.logCatMonitor.dispose();
204 this.logCatMonitor = null;
205 }
206
207 return Q.resolve<void>(void 0);
208 }
209
210 /**
211 * Sends telemetry
212 */
213 private sendTelemetry(extensionId: string, extensionVersion: string, appInsightsKey: string, eventName: string, properties: {[key: string]: string}, measures: {[key: string]: number}): Q.Promise<any> {
214 Telemetry.sendExtensionTelemetry(extensionId, extensionVersion, appInsightsKey, eventName, properties, measures);
215 return Q.resolve({});
216 }
217
218 /**
219 * Extension message handler.
220 */
221 private handleExtensionMessage(messageWithArgs: em.MessageWithArguments): Q.Promise<any> {
222 let handler = this.messageHandlerDictionary[messageWithArgs.message];
223 if (handler) {
224 Log.logInternalMessage(LogLevel.Info, "Handling message: " + em.ExtensionMessage[messageWithArgs.message]);
225 return handler.apply(this, messageWithArgs.args);
226 } else {
227 return Q.reject("Invalid message: " + messageWithArgs.message);
228 }
229 }
230
231 /**
232 * Handles connections to the server.
233 */
234 private handleSocket(socket: net.Socket): void {
235 let handleError = (e: any) => {
236 Log.logError(e);
237 socket.end(em.ErrorMarker);
238 };
239
240 let dataCallback = (data: any) => {
241 try {
242 let messageWithArgs: em.MessageWithArguments = JSON.parse(data);
243 this.handleExtensionMessage(messageWithArgs)
244 .then(result => {
245 socket.end(JSON.stringify(result));
246 })
247 .catch((e) => { handleError(e); })
248 .done();
249 } catch (e) {
250 handleError(e);
251 }
252 };
253
254 socket.on("data", dataCallback);
255 };
256
257 /**
258 * Recovers the server in case the named socket we use already exists, but no other instance of VSCode is active.
259 */
260 private recoverServer(error: any): void {
261 let errorHandler = (e: any) => {
262 /* The named socket is not used. */
263 if (e.code === "ECONNREFUSED") {
264 new FileSystem().removePathRecursivelyAsync(this.pipePath)
265 .then(() => {
266 this.serverInstance.listen(this.pipePath);
267 })
268 .done();
269 }
270 };
271
272 /* The named socket already exists. */
273 if (error.code === "EADDRINUSE") {
274 let clientSocket = new net.Socket();
275 clientSocket.on("error", errorHandler);
276 clientSocket.connect(this.pipePath, function() {
277 clientSocket.end();
278 });
279 }
280 }
281
282 /**
283 * Message handler for SHOW_INFORMATION_MESSAGE
284 */
285 private showInformationMessage(message: string): Q.Promise<void> {
286 return Q(vscode.window.showInformationMessage(message)).then(() => {});
287 }
288}
289