Merge branch 'master' of https://github.com/browngraphicslab/Dash-Web

1 files changed, 0 insertions, 190 deletions

diff --git a/src/server/ChildProcessUtilities/daemon/session.ts b/src/server/ChildProcessUtilities/daemon/session.ts
deleted file mode 100644
index fb2b3551e..000000000
--- a/src/server/ChildProcessUtilities/daemon/session.ts
+++ /dev/null
@@ -1,190 +0,0 @@
-import * as request from "request-promise";
-import { log_execution, pathFromRoot } from "../../ActionUtilities";
-import { red, yellow, cyan, green, Color } from "colors";
-import * as nodemailer from "nodemailer";
-import { MailOptions } from "nodemailer/lib/json-transport";
-import { writeFileSync, existsSync, mkdirSync } from "fs";
-import { resolve } from 'path';
-import { ChildProcess, exec, execSync } from "child_process";
-import { createInterface } from "readline";
-const killport = require("kill-port");
-
-process.on('SIGINT', endPrevious);
-const identifier = yellow("__session_manager__:");
-
-let manualRestartActive = false;
-createInterface(process.stdin, process.stdout).on('line', async line => {
-    const prompt = line.trim().toLowerCase();
-    switch (prompt) {
-        case "restart":
-            manualRestartActive = true;
-            identifiedLog(cyan("Initializing manual restart..."));
-            await endPrevious();
-            break;
-        case "exit":
-            identifiedLog(cyan("Initializing session end"));
-            await endPrevious();
-            identifiedLog("Cleanup complete. Exiting session...\n");
-            execSync(killAllCommand());
-            break;
-        default:
-            identifiedLog(red("commands: { exit, restart }"));
-            return;
-    }
-});
-
-const logPath = resolve(__dirname, "./logs");
-const crashPath = resolve(logPath, "./crashes");
-if (!existsSync(logPath)) {
-    mkdirSync(logPath);
-}
-if (!existsSync(crashPath)) {
-    mkdirSync(crashPath);
-}
-
-const crashLogPath = resolve(crashPath, `./session_crashes_${new Date().toISOString()}.log`);
-function addLogEntry(message: string, color: Color) {
-    const formatted = color(`${message} ${timestamp()}.`);
-    identifiedLog(formatted);
-    // appendFileSync(crashLogPath, `${formatted}\n`);
-}
-
-function identifiedLog(message?: any, ...optionalParams: any[]) {
-    console.log(identifier, message, ...optionalParams);
-}
-
-if (!["win32", "darwin"].includes(process.platform)) {
-    identifiedLog(red("Invalid operating system: this script is supported only on Mac and Windows."));
-    process.exit(1);
-}
-
-const latency = 10;
-const ports = [1050, 4321];
-const onWindows = process.platform === "win32";
-const LOCATION = "http://localhost";
-const heartbeat = `${LOCATION}:1050/serverHeartbeat`;
-const recipient = "samuel_wilkins@brown.edu";
-const { pid } = process;
-let restarting = false;
-let count = 0;
-
-function startServerCommand() {
-    if (onWindows) {
-        return '"C:\\Program Files\\Git\\git-bash.exe" -c "npm run start-release"';
-    }
-    return `osascript -e 'tell app "Terminal"\ndo script "cd ${pathFromRoot()} && npm run start-release"\nend tell'`;
-}
-
-function killAllCommand() {
-    if (onWindows) {
-        return "taskkill /f /im node.exe";
-    }
-    return "killall -9 node";
-}
-
-identifiedLog("Initializing session...");
-
-writeLocalPidLog("session_manager", pid);
-
-function writeLocalPidLog(filename: string, contents: any) {
-    const path = `./logs/current_${filename}_pid.log`;
-    identifiedLog(cyan(`${contents} written to ${path}`));
-    writeFileSync(resolve(__dirname, path), `${contents}\n`);
-}
-
-function timestamp() {
-    return `@ ${new Date().toISOString()}`;
-}
-
-async function endPrevious() {
-    identifiedLog(yellow("Cleaning up previous connections..."));
-    current_backup?.kill("SIGTERM");
-    await Promise.all(ports.map(port => {
-        const task = killport(port, 'tcp');
-        return task.catch((error: any) => identifiedLog(red(error)));
-    }));
-    identifiedLog(yellow("Done. Any failures will be printed in red immediately above."));
-}
-
-let current_backup: ChildProcess | undefined = undefined;
-
-async function checkHeartbeat() {
-    let error: any;
-    try {
-        count && !restarting && process.stdout.write(`${identifier} 👂 `);
-        await request.get(heartbeat);
-        count && !restarting && console.log('⇠ 💚');
-        if (restarting || manualRestartActive) {
-            addLogEntry(count++ ? "Backup server successfully restarted" : "Server successfully started", green);
-            restarting = false;
-        }
-    } catch (e) {
-        count && !restarting && console.log("⇠ 💔");
-        error = e;
-    } finally {
-        if (error) {
-            if (!restarting || manualRestartActive) {
-                restarting = true;
-                if (count && !manualRestartActive) {
-                    console.log();
-                    addLogEntry("Detected a server crash", red);
-                    identifiedLog(red(error.message));
-                    await endPrevious();
-                    await log_execution({
-                        startMessage: identifier + " Sending crash notification email",
-                        endMessage: ({ error, result }) => {
-                            const success = error === null && result === true;
-                            return identifier + ` ${(success ? `Notification successfully sent to` : `Failed to notify`)} ${recipient} ${timestamp()}`;
-                        },
-                        action: async () => notify(error || "Hmm, no error to report..."),
-                        color: cyan
-                    });
-                    identifiedLog(green("Initiating server restart..."));
-                }
-                manualRestartActive = false;
-                current_backup = exec(startServerCommand(), err => identifiedLog(err?.message || count ? "Previous server process exited." : "Spawned initial server."));
-                writeLocalPidLog("server", `${(current_backup?.pid ?? -2) + 1} created ${timestamp()}`);
-            }
-        }
-        setTimeout(checkHeartbeat, 1000 * latency);
-    }
-}
-
-async function startListening() {
-    identifiedLog(yellow(`After initialization, will poll server heartbeat repeatedly...\n`));
-    if (!LOCATION) {
-        identifiedLog(red("No location specified for session manager. Please include as a command line environment variable or in a .env file."));
-        process.exit(0);
-    }
-    await checkHeartbeat();
-}
-
-function emailText(error: any) {
-    return [
-        `Hey ${recipient.split("@")[0]},`,
-        "You, as a Dash Administrator, are being notified of a server crash event. Here's what we know:",
-        `Location: ${LOCATION}\nError: ${error}`,
-        "The server should already be restarting itself, but if you're concerned, use the Remote Desktop Connection to monitor progress."
-    ].join("\n\n");
-}
-
-async function notify(error: any) {
-    const smtpTransport = nodemailer.createTransport({
-        service: 'Gmail',
-        auth: {
-            user: 'brownptcdash@gmail.com',
-            pass: 'browngfx1'
-        }
-    });
-    const mailOptions = {
-        to: recipient,
-        from: 'brownptcdash@gmail.com',
-        subject: 'Dash Server Crash',
-        text: emailText(error)
-    } as MailOptions;
-    return new Promise<boolean>(resolve => {
-        smtpTransport.sendMail(mailOptions, (dispatchError: Error | null) => resolve(dispatchError === null));
-    });
-}
-
-startListening();
\ No newline at end of file