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// ==UserScript==
// @name Tufts Course Scheduler Auto-Sign-Up
// @namespace 71c
// @version 0.4.4
// @description To be used with tuftscoursescheduler.com; automatically signs up for classes at Tufts
// @homepageURL https://github.com/71c/course_scheduler
// @author 71c
// @copyright 2020, 71c (https://openuserjs.org/users/71c)
// @updateURL https://openuserjs.org/meta/71c/Tufts_Course_Scheduler_Auto-Sign-Up.meta.js
// @downloadURL https://openuserjs.org/install/71c/Tufts_Course_Scheduler_Auto-Sign-Up.user.js
// @license MIT
// @match https://sis.it.tufts.edu/psp/paprd/EMPLOYEE/EMPL/h/*
// @match http://localhost:5000/schedule*
// @match https://tuftscoursescheduler.com/schedule*
// @match https://tuftscoursescheduler.com/schedule*
// @match https://sis.it.tufts.edu/psp/paprd/EMPLOYEE/PSFT_SA/s/WEBLIB_CLS_SRCH.ISCRIPT1.FieldFormula.IScript_GoToCart
// @match https://siscs.it.tufts.edu/psc/csprd/EMPLOYEE/PSFT_SA/c/SA_LEARNER_SERVICES_2.SSR_SSENRL_CART.GBL???Page=SSR_SSENRL_CART&Action=A&INSTITUTION=TUFTS&TargetFrameName=Tfp_cart_iframe*
// @run-at document-start
// @grant GM_getValue
// @grant GM_setValue
// ==/UserScript==
'use strict';
// Used to be "uit.tufts.edu"
// Now it's "it.tufts.edu"
const MAIN_DOMAIN = 'it.tufts.edu';
// http://mths.be/unsafewindow
window.unsafeWindow || (
unsafeWindow = (function() {
var el = document.createElement('p');
el.setAttribute('onclick', 'return window;');
return el.onclick();
}())
);
var jQuery;
if (window.location.origin === `https://sis.${MAIN_DOMAIN}` || window.location.origin === `https://siscs.${MAIN_DOMAIN}`) {
// we're at one of the SIS sites
document.addEventListener('DOMContentLoaded', function() {
jQuery = unsafeWindow.jQuery;
whenOnSIS();
});
} else {
// we're at my website
unsafeWindow.hasUserscript = true;
document.addEventListener('startUserscript', whenOnMyWebsite);
}
const getEnrollmentCartURL = `https://sis.${MAIN_DOMAIN}/psp/paprd/EMPLOYEE/PSFT_SA/s/WEBLIB_CLS_SRCH.ISCRIPT1.FieldFormula.IScript_GoToCart`;
const baseURL = `https://sis.${MAIN_DOMAIN}/psp/paprd/EMPLOYEE/EMPL/h/`;
const searchSearch = "?tab=TFP_CLASS_SEARCH";
var whenOnSIS = function() {
unsafeWindow.addClassesToCart = function() {
const info = JSON.parse(GM_getValue('classes', '{}'));
console.log(window.location.href);
whenOnSIS.addClasses(info);
};
const homeSearch = "?tab=DEFAULT";
if (window.location.search.indexOf(homeSearch) === 0) {
// we're at SIS home
// whenOnSIS.makeAutoSignUpButton();
} else if (window.location.search.indexOf(searchSearch) === 0) {
// we're at one of the search pages
if (GM_getValue('setClassesImmediately', false)) {
// we want to do it immediately
if (!GM_getValue('clearClasses', false)) {
// next time we go to url don't auto; only do once
// turn setClassesImmediately off only if clearClasses is false because otherwise, classes won't be deleted from cart when clearClasses is true
GM_setValue('setClassesImmediately', false);
unsafeWindow.addClassesToCart();
}
} else {
// we don't want to do it immediately
// whenOnSIS.addManualEntryUI();
}
} else if (window.location.href === getEnrollmentCartURL) {
if (GM_getValue('setClassesImmediately', false)) {
// we're at a page that gives us a URL; immediately redirect to that URL
const url = document.querySelector('span#IS_AC_RESPONSE').innerText.trim();
location.href = url;
}
} else if (window.location.href.indexOf(`https://siscs.${MAIN_DOMAIN}/psc/csprd/EMPLOYEE/PSFT_SA/c/SA_LEARNER_SERVICES_2.SSR_SSEN`) === 0) {
// we're in the iframe inside the Enrollment Cart page
whenOnSIS.deleteClassesFromCart();
}
}
whenOnSIS.waitFor = function(condition, callback) {
/* wait for condition() to evaluate to to true, then execute callback */
if (condition())
callback();
else {
var t = function() {
setTimeout(function() {
if (condition())
callback();
else
t();
}, 100);
};
t();
}
}
whenOnSIS.executeSequentially = function(functions, callback) {
/* Execute asynchronous functions one-by-one. functions is an array of
functions which each take a callback as a parameter. callback is
executed when all the functions have finished executing. Yes, it would
make more sense to use promises but this works fine */
if (functions.length === 0)
callback();
else
functions[0](function() {
whenOnSIS.executeSequentially(functions.slice(1), callback);
});
}
whenOnSIS.addClasses = function(info) {
const functions = info.classes.map(classInfo =>
whenOnSIS.addClass(info.term_code, info.career,
/^[A-Z]+/.exec(classInfo.course_num)[0],
/-.*/.exec(classInfo.course_num)[0].slice(1), classInfo.classNums, classInfo.title));
whenOnSIS.executeSequentially(functions, function() {
console.log('done');
});
}
whenOnSIS.addClass = function(term_code, career, subject, num, classNums, title) {
return function(callback) {
if (window.location.search.indexOf("?tab=TFP_CLASS_SEARCH") !== 0) {
return;
}
window.location.hash = "#search_results/term/" + term_code + "/career/" + career + "/subject/" + subject + "/course/" + num + "/attr/keyword/" + title + "/instructor";
whenOnSIS.waitFor(function() {
return !jQuery('.tfp-results-overlay')[0] && !jQuery('.tfp_cls_srch_loading')[0] && jQuery('.accorion-head')[0] && jQuery('td:contains(' + classNums[0] + ')')[0];
}, function() {
if (document.querySelector('.tfp-offstate') !== null) {
alert("You can't add to this term now");
return;
}
// click the checkbox to show sections.
// if there is more than one result, sections will be hidden, and clicking the checkbox will show the sections
// if there is one result, clicking the checkbox won't do anything
jQuery('.tfp-show-result-sect').click();
whenOnSIS.selectSections(classNums, subject, num, callback);
});
};
}
whenOnSIS.selectSections = function(classNums, subject, num, callback) {
for (const classNum of classNums) {
const inputBubbleOrSpan = jQuery('td:contains(' + classNum + ')')[0].parentElement.children[6].children[0];
if (inputBubbleOrSpan.nodeName === "SPAN") {
// the section is in cart or enrolled
if (inputBubbleOrSpan.innerHTML === "In Cart") {
alert("Section with class num " + classNum + " in course " + subject + "-" + num + " is already in your cart. Continuing.");
} else if (inputBubbleOrSpan.innerHTML === "Enrolled") {
alert("You have already enrolled for section with class num " + classNum + " in course " + subject + "-" + num + ". Continuing.");
} else {
// this shouldn't happen
console.error("something unexpected happened");
return;
}
callback();
} else if (inputBubbleOrSpan.nodeName === "INPUT") { // just making sure
if (!inputBubbleOrSpan.disabled) {
inputBubbleOrSpan.click();
}
else {
alert("You can't add classes now");
return;
}
} else {
// this shouldn't happen
console.error("something unexpected happened");
return;
}
}
jQuery('button:contains(Add to Cart)').click();
callback();
}
whenOnSIS.makeAutoSignUpButton = function() {
const button = document.createElement('button');
button.innerHTML = 'auto sign up';
button.onclick = function() {
window.location.href = baseURL + searchSearch;
};
document.body.appendChild(button);
}
whenOnSIS.addManualEntryUI = function() {
const div = document.createElement('div');
const textarea = document.createElement('textarea');
const button = document.createElement('button');
button.innerHTML = 'add classes';
button.onclick = function() {
// extensive error checking
try {
var info = JSON.parse(textarea.value);
} catch (e) {
alert('invalid JSON');
return;
}
for (const key of ["term_code", "career", "classes"]) {
if (!(key in info)) {
alert("missing attribute " + key);
return;
}
}
for (var i = 0; i < info.classes.length; i++) {
const classInfo = info.classes[i];
for (const key of ["course_num", "classNums"]) {
if (!(key in classInfo)) {
alert("class info at index " + i + " missing attribute " + key);
return;
}
}
}
whenOnSIS.addClasses(info);
};
div.appendChild(textarea);
div.appendChild(button);
document.body.appendChild(div);
}
whenOnSIS.deleteClassesFromCart = function() {
if (GM_getValue('setClassesImmediately', false)) {
// next time we go to url don't auto; only do once
GM_setValue('setClassesImmediately', false);
if (GM_getValue('clearClasses', false)) {
GM_setValue('clearClasses', false);
if (window.parent.location.hash.indexOf('#cart') === 0) { // this should always be the case
whenOnSIS.waitFor(function() {
return document.querySelector('th.PSLEVEL1GRIDCOLUMNHDR') !== null;
}, whenOnSIS.deleteCourse);
}
}
}
}
whenOnSIS.deleteCourse = function(currLen) {
if (currLen === undefined) {
currLen = whenOnSIS.getTableLength();
}
// argh https://stackoverflow.com/a/42907951/9911203
var trashCan = document.querySelector('img[src="/cs/csprd/cache/PS_DELETE_ICN_1.gif"]');
if (trashCan === null) {
// done deleting classes from cart
window.parent.addClassesToCart();
return;
}
trashCan.click();
var len;
whenOnSIS.waitFor(function() {
if (document.querySelector('img[src="/cs/csprd/cache/PS_DELETE_ICN_1.gif"]') === null)
return true;
len = whenOnSIS.getTableLength();
if (len === currLen)
return false;
return true;
}, function() {
whenOnSIS.deleteCourse(len);
});
}
whenOnSIS.getTableLength = function() {
return document.querySelector('table.PSLEVEL1GRIDNBO').children[0].children.length;
}
function whenOnMyWebsite() {
// document.getElementById('nouserscript').parentElement.removeChild(document.getElementById('nouserscript'))
// const scriptBox = document.createElement('textarea');
// scriptBox.rows = "7";
// scriptBox.cols = "40";
const left = document.getElementById('left');
// left.appendChild(scriptBox);
let e = document.getElementById("no-userscript");
if (e !== null) {
e.remove();
}
const setClassesButton = document.createElement('button');
setClassesButton.className = "btn btn-primary mr-2";
setClassesButton.innerHTML = 'replace cart with these';
const addClassesButton = document.createElement('button');
addClassesButton.className = "btn btn-primary";
addClassesButton.innerHTML = 'add these to cart';
setClassesButton.onclick = function() {
GM_setValue('clearClasses', true);
GM_setValue('setClassesImmediately', true);
window.open(getEnrollmentCartURL);
};
addClassesButton.onclick = function() {
GM_setValue('clearClasses', false);
GM_setValue('setClassesImmediately', true);
window.open(baseURL + searchSearch);
};
const p = document.createElement('p');
p.className = "hide-in-small-screen";
// p.appendChild(setClassesButton); // not having this button anymore because it doesn't work now
p.appendChild(addClassesButton);
left.appendChild(p);
function updateClasses() {
var val = getInfoForAddClasses("ALL"); // is this a good idea? does it matter? should it be ASE?
GM_setValue('classes', val);
// scriptBox.value = val;
}
document.addEventListener('updateClasses', updateClasses, false);
updateClasses();
function getInfoForAddClasses(career) {
var schedule = top_schedules[scheduleIndex].schedule;
var classes = [];
for (let i = 0; i < schedule.length; i++) {
const current_course = courses[i];
const classNums = schedule[i].map(section_id => sections_by_id[section_id].class_num);
classes.push({
course_num: current_course.course_num,
classNums: classNums,
title: current_course.title,
});
}
return JSON.stringify({
term_code: term_code,
career: career,
classes: classes
});
}
}