uptime-kuma/server/client.js

/*
 * For Client Socket
 */
const { TimeLogger } = require("../src/util");
const { R } = require("redbean-node");
const { io } = require("./server");
const { setting } = require("./util-server");
const checkVersion = require("./check-version");

/**
 * Send list of notification providers to client
 * @param {Socket} socket Socket.io socket instance
 * @returns {Promise<Bean[]>}
 */
async function sendNotificationList(socket) {
    const timeLogger = new TimeLogger();

    let result = [];
    let list = await R.find("notification", " user_id = ? ", [
        socket.userID,
    ]);

    for (let bean of list) {
        result.push(bean.export());
    }

    io.to(socket.userID).emit("notificationList", result);

    timeLogger.print("Send Notification List");

    return list;
}

/**
 * Send Heartbeat History list to socket
 * @param {Socket} socket Socket.io instance
 * @param {number} monitorID ID of monitor to send heartbeat history
 * @param {boolean} [toUser=false]  True = send to all browsers with the same user id, False = send to the current browser only
 * @param {boolean} [overwrite=false] Overwrite client-side's heartbeat list
 * @returns {Promise<void>}
 */
async function sendHeartbeatList(socket, monitorID, toUser = false, overwrite = false) {
    const timeLogger = new TimeLogger();

    let list = await R.getAll(`
        SELECT * FROM heartbeat
        WHERE monitor_id = ?
        ORDER BY time DESC
        LIMIT 100
    `, [
        monitorID,
    ]);

    let result = list.reverse();

    if (toUser) {
        io.to(socket.userID).emit("heartbeatList", monitorID, result, overwrite);
    } else {
        socket.emit("heartbeatList", monitorID, result, overwrite);
    }

    timeLogger.print(`[Monitor: ${monitorID}] sendHeartbeatList`);
}

/**
 *  Important Heart beat list (aka event list)
 * @param {Socket} socket Socket.io instance
 * @param {number} monitorID ID of monitor to send heartbeat history
 * @param {boolean} [toUser=false]  True = send to all browsers with the same user id, False = send to the current browser only
 * @param {boolean} [overwrite=false] Overwrite client-side's heartbeat list
 * @returns {Promise<void>}
 */
async function sendImportantHeartbeatList(socket, monitorID, toUser = false, overwrite = false) {
    const timeLogger = new TimeLogger();

    let list = await R.find("heartbeat", `
        monitor_id = ?
        AND important = 1
        ORDER BY time DESC
        LIMIT 500
    `, [
        monitorID,
    ]);

    timeLogger.print(`[Monitor: ${monitorID}] sendImportantHeartbeatList`);

    if (toUser) {
        io.to(socket.userID).emit("importantHeartbeatList", monitorID, list, overwrite);
    } else {
        socket.emit("importantHeartbeatList", monitorID, list, overwrite);
    }

}

/**
 * Send application info
 * @param {Socket} socket Socket.io socket instance
 * @returns {Promise<void>}
 */
async function sendInfo(socket) {
    socket.emit("info", {
        version: checkVersion.version,
        latestVersion: checkVersion.latestVersion,
        primaryBaseURL: await setting("primaryBaseURL")
    });
}

module.exports = {
    sendNotificationList,
    sendImportantHeartbeatList,
    sendHeartbeatList,
    sendInfo
};