Add support for running extensions in the browser

src/node/insights.ts

@@ -0,0 +1,57 @@
+import * as appInsights from "applicationinsights";
+import * as https from "https";
+import * as http from "http";
+import * as os from "os";
+
+export class TelemetryClient implements appInsights.TelemetryClient {
+	public config: any = {};
+
+	public channel = {
+		setUseDiskRetryCaching: (): void => undefined,
+	};
+
+	public trackEvent(options: appInsights.EventTelemetry): void {
+		if (!options.properties) {
+			options.properties = {};
+		}
+		if (!options.measurements) {
+			options.measurements = {};
+		}
+
+		try {
+			const cpus = os.cpus();
+			options.measurements.cores = cpus.length;
+			options.properties["common.cpuModel"] = cpus[0].model;
+		} catch (error) {}
+
+		try {
+			options.measurements.memoryFree = os.freemem();
+			options.measurements.memoryTotal = os.totalmem();
+		} catch (error) {}
+
+		try {
+			options.properties["common.shell"] = os.userInfo().shell;
+			options.properties["common.release"] = os.release();
+			options.properties["common.arch"] = os.arch();
+		} catch (error) {}
+
+		try {
+			const url = process.env.TELEMETRY_URL || "https://v1.telemetry.coder.com/track";
+			const request = (/^http:/.test(url) ? http : https).request(url, {
+				method: "POST",
+				headers: {
+					"Content-Type": "application/json",
+				},
+			});
+			request.on("error", () => { /* We don't care. */ });
+			request.write(JSON.stringify(options));
+			request.end();
+		} catch (error) {}
+	}
+
+	public flush(options: appInsights.FlushOptions): void {
+		if (options.callback) {
+			options.callback("");
+		}
+	}
+}