WhatsApp Web - Chat Bot

A chat bot for WhatsApp Web, with some basic commands. Check console for log.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         WhatsApp Web - Chat Bot
// @namespace    WACB
// @version      0.1
// @description  A chat bot for WhatsApp Web, with some basic commands. Check console for log.
// @author       Royalgamer06
// @match        https://web.whatsapp.com/
// @grant        GM_xmlhttpRequest
// @grant        unsafeWindow
// @run-at       document-idle
// ==/UserScript==

var jq = document.createElement('script');
jq.onload = function() {
    jQuery.noConflict();
    console.log('jQuery loaded');
    setTimeout(Main, 3500);
};
jq.src = "//ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js";
document.getElementsByTagName('head')[0].appendChild(jq);

function Main() {
    console.log("[WACB] Waiting for chat to load");
    jQuery("#pane-side").on("click", function() {
        setTimeout(listenToChat, 350);
    });
}

function listenToChat() {
    console.log("[WACB] Listening to chat");
    /*jQuery(".message-list").bind("DOMSubtreeModified", function() {
        var new_msg = jQuery(".selectable-text").last().text();
        console.log("[WACB] New chat message: \n" + new_msg);
        if (new_msg.indexOf("!") === 0) {
            var cmd_line = new_msg.substring(1);
            var cmd = cmd_line.split(" ")[0];
            var args = cmd_line.split(" ").shift();
            if (cmd == "about") {
                sendMsg("I am a chat bot, made by Roy van Dijk.");
            }
        }
    });*/
    unsafeWindow.sendMsg = function(msg) {
        console.log("[WACB] Sending message: \n" + msg);
        var target = document.getElementsByClassName("input")[1];
        var eventType = "textInput";
        var evt = document.createEvent("TextEvent");
        evt.initTextEvent(eventType, true, true, unsafeWindow, msg, 0, "en-US");
        target.focus();
        target.dispatchEvent(evt);
        jQuery(".send-container").click();
    };
    var last_msg = jQuery(".selectable-text").last().text();
    setInterval(function() {
        var new_msg = jQuery(".selectable-text").last().text();
        if (new_msg !== last_msg) {
            console.log("[WACB] New chat message: \n" + new_msg);
            last_msg = new_msg;
            if (new_msg.indexOf("!") === 0) {
                var cmd_line = new_msg.substring(1);
                var cmd = cmd_line.split(" ")[0];
                var args = cmd_line.split(" ").slice(1);
                if (cmd == "help") {
                    sendMsg("I can do the following commands:");
                    sendMsg("*!about*: Returns who I am.");
                    sendMsg("*!joke*: Returns a random joke (about Chuck Norris).");
                    sendMsg("*!weather*: Returns the current weather in Eindhoven.");
                    sendMsg("*!weather <LOCATION>*: Returns the current weather in <LOCATION>.");
                    sendMsg("*!gewis*: Returns the agenda of GEWIS.");
                    sendMsg("(Work in progress)");
                }
                if (cmd == "about") {
                    sendMsg("I am a chat bot.");
                }
                if (cmd == "joke") {
                    GM_xmlhttpRequest({
                        method: "GET",
                        url: "http://api.icndb.com/jokes/random?escape=javascript",
                        onload: function(response) {
                            var json = JSON.parse(response.responseText);
                            sendMsg(json.value.joke);
                        }
                    });
                }
                if (cmd == "weather") {
                    var url = "http://api.apixu.com/v1/current.json?key=d0c5d252848043d6af4210418162706&q=Eindhoven";
                    if (args.length > 0) {
                        url = "http://api.apixu.com/v1/current.json?key=d0c5d252848043d6af4210418162706&q=" + args[0];
                    }
                    GM_xmlhttpRequest({
                        method: "GET",
                        url: url,
                        onload: function(response) {
                            var json = JSON.parse(response.responseText);
                            if (args.length > 0) {
                                if (json.error) {
                                    sendMsg("ERROR: Couldn't find location.");
                                } else {
                                    sendMsg("It is currently " + json.current.temp_c + "°C in " + args[0]);
                                }
                            } else {
                                sendMsg("It is currently " + json.current.temp_c + "°C in Eindhoven.");
                            }
                        }
                    });
                }
                if (cmd == "gewis") {
                    GM_xmlhttpRequest({
                        method: "GET",
                        url: "https://www.gewis.nl/activity",
                        onload: function(response) {
                            var acts = jQuery(".agenda-item-body", response.responseText);
                            for (var i = 0; i < acts.length; i++) {
                                sendMsg(jQuery("h4 > a", acts[i]).text().trim() + " - " + jQuery("div.col-md-4 > dl > dd:nth-child(2)", acts[i]).text().trim() + " @ " + jQuery("div.col-md-4 > dl > dd:nth-child(6)", acts[i]).text().trim());
                            }
                        }
                    });
                }
            }
        }
    }, 100);
}