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app.js
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'use strict';
require('dotenv').config();
const pkg = require('./package.json');
const i18n = require('./src/lang/i18n.config');
const bodyParser = require('body-parser');
const express = require('express');
const session = require('express-session');
const log = require('./src/logging/');
const pg = require('pg');
const fileStore = require('session-file-store')(session);
const pgSessionStore = require('connect-pg-simple')(session);
const helmet = require('helmet');
const cors = require('cors');
const canvasApi = require('./src/api/canvas');
const db = require('./src/db');
const utils = require('./src/utilities');
const cache = require('./src/cache');
const routes = require('./src/routes');
const morgan = require('morgan');
const rfs = require('rotating-file-stream');
const path = require('path');
const ical = require('./src/ical');
const crypto = require('crypto');
const { env } = require('process');
const port = process.env.PORT || 3000;
const cookieMaxAge = 3600000 * 24 * 30 * 4; // 4 months
const fileStoreOptions = { ttl: 3600 * 12, retries: 3 };
const DB_PER_PAGE = 50;
// PostgreSQL Session store
const sessionOptions = {
store: new pgSessionStore({
pool: db,
tableName: "user_session",
createTableIfMissing: true
}),
name: process.env.SESSION_NAME ? process.env.SESSION_NAME : "LTI_TEST_SID",
secret: process.env.SESSION_SECRET ? process.env.SESSION_SECRET : "keyboard cat dog mouse",
resave: false,
saveUninitialized: false,
rolling: true,
cookie: { maxAge: cookieMaxAge }
};
const app = express();
app.disable('X-Powered-By');
app.set('json spaces', 2);
app.use("/assets",
express.static(__dirname + '/public/assets')
);
app.use(bodyParser.urlencoded({
extended: false
}));
app.use(helmet({
frameguard: false
}));
app.use(cors());
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
// Create a rotating write stream for request access logging
var accessLogStream = rfs.createStream('access.log', {
interval: '1d', // rotate daily
maxFiles: 180, // keep about six months
path: path.join(__dirname, 'logs')
});
// Setup special Morgan tokens
morgan.token('course-id', function getCourseId (req, res) {
return res.locals?.courseId ? res.locals.courseId : "-";
});
morgan.token('user-id', function getUserId (req) {
return req.session?.user?.id ? req.session.user.id : "-";
});
morgan.token('user-groups', function getUserGroups (req) {
return req.session?.user?.groups_human_readable ? req.session.user.groups_human_readable : "-";
});
// Setup https request logging
app.use(morgan(':remote-addr [:date[clf]] ":method :url" :status :res[content-length] - :course-id :user-id ":user-groups" ":response-time ms" ":referrer" ":user-agent"', { stream: accessLogStream }))
// Content Security Policy
app.use(function (req, res, next) {
res.setHeader(
'Content-Security-Policy',
"default-src 'self'; script-src 'self' cdn.jsdelivr.net unpkg.com; style-src 'self' 'unsafe-inline' cdn.jsdelivr.net fonts.googleapis.com; font-src 'self' cdn.jsdelivr.net fonts.gstatic.com; img-src 'self' data:; frame-src 'self'" + (process.env.CSP_FRAME_SRC_ALLOW ? " " + process.env.CSP_FRAME_SRC_ALLOW : "")
);
next();
});
if (process.env.NODE_ENV === "production") {
app.set('trust proxy', 1);
sessionOptions.cookie.secure = true;
sessionOptions.cookie.sameSite = 'none';
}
// Session options
app.use(session(sessionOptions));
// set the view engine to ejs
app.set('view engine', 'ejs');
// Language with i18n
// Default: using 'accept-language' header to guess language settings
app.use(i18n.init);
// Check database version
db.checkDatabaseVersion();
// Setup all routes
app.use('/', routes);
// Debug route that will dump session, should only be possible in development
app.get('/debug', async (req, res, next) => {
if (process.env.NODE_ENV !== "production") {
return res.send({
session: req.session
});
}
else {
return res.sendStatus(404);
}
});
// Simple status information
app.get('/status', (req, res, next) => {
return res.send({
status: 'up',
version: pkg.version,
node_version: process.version,
node_env: process.env.NODE_ENV,
db: process.env.PGDATABASE
});
});
// Main page with available slots for user to reserve */
app.get('/', async (req, res, next) => {
try {
let availableSlots;
const per_page = DB_PER_PAGE ? DB_PER_PAGE : 25;
const offset = req.query.page ? Math.max(parseInt(req.query.page) - 1, 0) * per_page : 0;
/* Date and time handling */
const dateOptions = { weekday: 'short', year: 'numeric', month: 'short', day: 'numeric' };
const timeOptions = { hour: '2-digit', minute: '2-digit' };
/* Available slots, with filters applied, paginated */
availableSlots = await db.getAllSlotsPaginated(res, offset, per_page, res.locals.courseId, parseInt(req.query.segment), parseInt(req.query.course), parseInt(req.query.instructor), parseInt(req.query.location), parseInt(req.query.availability), req.query.start_date, req.query.end_date);
/* Difference between valid courses to use in slots and courses used for filtering */
const filter_segments = utils.linkify(res, 'segment', await db.getSegments(res.locals.courseId), parseInt(req.query.segment), parseInt(req.query.course), parseInt(req.query.instructor), parseInt(req.query.location), parseInt(req.query.availability), req.query.start_date, req.query.end_date);
const filter_courses = utils.linkify(res, 'course', await db.getValidCourses(res.locals.courseId), parseInt(req.query.segment), parseInt(req.query.course), parseInt(req.query.instructor), parseInt(req.query.location), parseInt(req.query.availability), req.query.start_date, req.query.end_date);
const filter_instructors = utils.linkify(res, 'instructor', await db.getValidInstructors(res.locals.courseId), parseInt(req.query.segment), parseInt(req.query.course), parseInt(req.query.instructor), parseInt(req.query.location), parseInt(req.query.availability), req.query.start_date, req.query.end_date);
const filter_locations = utils.linkify(res, 'location', await db.getValidLocations(res.locals.courseId), parseInt(req.query.segment), parseInt(req.query.course), parseInt(req.query.instructor), parseInt(req.query.location), parseInt(req.query.availability), req.query.start_date, req.query.end_date);
const filter_availability = utils.linkify(res, 'availability', [ { id: 1, name: res.__('SlotListingFilterAvailabilityAll') } ], parseInt(req.query.segment), parseInt(req.query.course), parseInt(req.query.instructor), parseInt(req.query.location), parseInt(req.query.availability), req.query.start_date, req.query.end_date);
const filter_date = utils.linkify(res, 'date', '', parseInt(req.query.segment), parseInt(req.query.course), parseInt(req.query.instructor), parseInt(req.query.location), parseInt(req.query.availability), req.query.start_date, req.query.end_date);
let this_navigation = utils.paginate(availableSlots.records_total, per_page, req.query.page ? Math.max(parseInt(req.query.page), 1) : 1, parseInt(req.query.segment), parseInt(req.query.course), parseInt(req.query.instructor), parseInt(req.query.location), parseInt(req.query.availability), req.query.start_date, req.query.end_date);
this_navigation.filters = {
segment: filter_segments,
course: filter_courses,
instructor: filter_instructors,
location: filter_locations,
availability: filter_availability,
date: filter_date
};
this_navigation.filters_active = 0;
if (this_navigation.filters.segment.some(x => x.active == true && x.id != null)) {
this_navigation.filters_active++;
}
if (this_navigation.filters.course.some(x => x.active == true && x.id != null)) {
this_navigation.filters_active++;
}
if (this_navigation.filters.instructor.some(x => x.active == true && x.id != null)) {
this_navigation.filters_active++;
}
if (this_navigation.filters.location.some(x => x.active == true && x.id != null)) {
this_navigation.filters_active++;
}
if (this_navigation.filters.availability.some(x => x.active == true && x.id != null)) {
this_navigation.filters_active++;
}
if (this_navigation.filters.date.start_date !== undefined || this_navigation.filters.date.end_date !== undefined) {
this_navigation.filters_active++;
}
if (req.session.user.db_id != null && !isNaN(parseInt(req.query.instructor)) && parseInt(req.query.instructor) == req.session.user.db_id) {
this_navigation.current_page_is_instructor_slots = true;
}
else {
this_navigation.current_page_is_instructor_slots = false;
}
let this_start_date_string = res.__('DatePhraseToday');
let this_end_date_string = res.__('DatePhraseAndForward');
if (Date.parse(req.query.start_date)) {
if (new Date().toLocaleDateString('sv-SE', { year: 'numeric', month: 'numeric', day: 'numeric' }) != new Date(req.query.start_date).toLocaleDateString('sv-SE', { year: 'numeric', month: 'numeric', day: 'numeric' })) {
this_start_date_string = new Date(req.query.start_date).toLocaleDateString('sv-SE', { year: 'numeric', month: 'numeric', day: 'numeric' });
}
}
if (Date.parse(req.query.end_date)) {
if (new Date().toLocaleDateString('sv-SE', { year: 'numeric', month: 'numeric', day: 'numeric' }) != new Date(req.query.end_date).toLocaleDateString('sv-SE', { year: 'numeric', month: 'numeric', day: 'numeric' })) {
this_end_date_string = res.__('DatePhraseUntil') + " " + new Date(req.query.end_date).toLocaleDateString('sv-SE', { year: 'numeric', month: 'numeric', day: 'numeric' });
}
}
if (this_navigation.current_page_is_instructor_slots) {
this_navigation.title = res.__('SlotListingHeaderInstructor', { slots: this_navigation.records_total, from: this_start_date_string, to: this_end_date_string });
}
else {
this_navigation.title = res.__('SlotListingHeaderNormal', { slots: this_navigation.records_total, from: this_start_date_string, to: this_end_date_string });
}
/* Add contextual availability notice for each slot */
for (const slot of availableSlots.slots) {
if (slot.res_max == 1) {
if (slot.res_max == slot.res_now) {
if (slot.type == "group") {
slot.availability_notice = res.__('SlotAvailabilityPhraseOneGroupFull');
}
else {
slot.availability_notice = res.__('SlotAvailabilityPhraseOneIndividualFull');
}
}
else {
if (slot.type == "group") {
slot.availability_notice = res.__('SlotAvailabilityPhraseOneGroupAvailable');
}
else {
slot.availability_notice = res.__('SlotAvailabilityPhraseOneIndividualAvailable');
}
}
}
else {
if (slot.res_max == slot.res_now) {
if (slot.type == "group") {
slot.availability_notice = res.__('SlotAvailabilityPhraseGroupFull');
}
else {
slot.availability_notice = res.__('SlotAvailabilityPhraseIndividualFull');
}
}
else {
if (slot.type == "group") {
slot.availability_notice = res.__n('SlotAvailabilityPhraseGroupAvailable', (slot.res_max - slot.res_now), { reservations: slot.res_now, available: (slot.res_max - slot.res_now), slots: slot.res_max });
}
else {
slot.availability_notice = res.__n('SlotAvailabilityPhraseIndividualAvailable', (slot.res_max - slot.res_now), { reservations: slot.res_now, available: slot.res_max - slot.res_now, slots: slot.res_max });
}
}
}
}
/* Calculate if this slot is bookable, based on existing reservations */
/* TODO: make it more general in utilities or something! */
for (const slot of availableSlots.slots) {
slot.res_percent = Math.round((slot.res_now / slot.res_max) * 100);
if (req.session.user.isAdministrator) {
slot.reservable_for_this_user = false;
slot.reservable_notice = res.__('SlotReservationNoAdministrator');
}
else if (req.session.user.isInstructor) {
slot.reservable_for_this_user = false;
slot.reservable_notice = res.__('SlotReservationNoInstructor');
}
else {
slot.reservable_for_this_user = true;
if (slot.res_now >= slot.res_max) {
slot.reservable_for_this_user = false;
slot.reservable_notice = res.__('SlotReservationFull');
}
// DEBUG FOR AZURE AND UTC, should be removed
const t_time = new Date();
const t_time_now = t_time.getTime();
const t_time_slot = new Date(slot.time_start).getTime();
log.debug("t_time: " + t_time + " t_time_now: " + t_time_now + " slot.time_start: " + slot.time_start.toString() + " t_time_slot: " + t_time_slot + " reservable: " + !(t_time_slot <= t_time_now));
if (t_time_slot <= t_time_now) {
slot.reservable_for_this_user = false;
slot.reservable_notice = res.__('SlotReservationTimeInPast');
}
if (slot.type == "group") {
// Check if any of this user's groups are reserved on this slot
if (slot.res_group_ids && slot.res_group_ids.filter(id => req.session.user.groups_ids?.includes(id)).length) {
slot.reservable_for_this_user = false;
slot.reservable_notice = res.__('SlotReservationGroupIsReserved');
}
// Check how many times this user's groups are reserved on slots with the same course context
if (slot.res_course_group_ids && slot.reservable_for_this_user) {
if (slot.res_course_group_ids.filter(id => req.session.user.groups_ids?.includes(id)).length >= slot.course_max_per_type) {
slot.reservable_for_this_user = false;
slot.reservable_notice = res.__('SlotReservationGroupMaxReservations', { max: slot.course_max_per_type, name: slot.course_name });
}
}
}
else {
// Check if this user is reserved on this slot
if (slot.res_user_ids && slot.res_user_ids.includes(req.session.user.id)) {
slot.reservable_for_this_user = false;
slot.reservable_notice = res.__('SlotReservationIndividualIsReserved');
}
// Check how many times this user is reserved on slots with the same course context
if (slot.res_course_user_ids && slot.reservable_for_this_user) {
if (slot.res_course_user_ids.filter(id => req.session.user.id == id).length >= slot.course_max_per_type) {
slot.reservable_for_this_user = false;
slot.reservable_notice = res.__('SlotReservationIndividualMaxReservations', { max: slot.course_max_per_type, name: slot.course_name });
}
}
}
}
}
/* return res.send({
internal: req.session.internal,
session: req.session,
groups: req.session.user.groups,
navigation: this_navigation,
slots: availableSlots.slots,
segments: await db.getSegments(res.locals.courseId),
courses: await db.getValidCourses(res.locals.courseId),
instructors: await db.getValidInstructors(),
locations: await db.getValidLocations()
}); */
return res.render('pages/index', {
internal: req.session.internal,
session: req.session,
groups: req.session.user.groups,
navigation: this_navigation,
slots: availableSlots.slots,
configuration: res.locals.configuration,
segments: await db.getSegments(res.locals.courseId),
courses: await db.getValidCourses(res.locals.courseId),
instructors: await db.getValidInstructors(res.locals.courseId),
locations: await db.getValidLocations(res.locals.courseId)
});
}
catch (error) {
log.error(error);
return res.send({
success: false,
message: error.message
});
}
});
/**
* Show the user a list of reservations done, both for this user or a group the user is member of.
*/
app.get('/reservations', async (req, res, next) => {
const reservations = await db.getReservationsForUser(res, res.locals.courseId, req.session.user.id, req.session.user.groups_ids);
for (const reservation of reservations) {
// Get other reservations if this is a group and there are other groups reserved.
// For now, we store the information in database when a user for a group makes the reservation.
if (reservation.is_group == true && reservation.max_groups > 1) {
let other_reservations = await db.getSimpleSlotReservations(reservation.slot_id);
reservation.other_reservations = [];
for (const r of other_reservations) {
if (r.canvas_group_id != reservation.canvas_group_id) {
reservation.other_reservations.push(r);
}
}
}
if (reservation.id == req.query.reservationId && req.query.reservationDone == "true") {
reservation.just_created = true;
}
reservation.ics_file_name = crypto.createHash('md5').update(reservation.id.toString()).digest("hex") + ".ics";
}
/* return res.send({
status: 'up',
version: pkg.version,
session: req.session,
reservations: reservations
}); */
return res.render(res.locals.lang + '/pages/reservations/reservations', {
status: 'up',
internal: req.session.internal,
version: pkg.version,
session: req.session,
reservations: reservations,
reservationDeleted: req.query.reservationDeleted && req.query.reservationDeleted == "true",
reservationDone: req.query.reservationDone && req.query.reservationDone == "true",
reservationGroup: req.query.reservationGroup && req.query.reservationGroup == "true",
reservationTitle: req.query.reservationTitle ? req.query.reservationTitle : null
});
});
/**
* Privay Policy, linked from footer
*/
app.get('/privacy', async (req, res, next) => {
return res.render(res.locals.lang + '/pages/privacy/privacy', {
internal: req.session.internal,
session: req.session
});
});
/**
* Admin: start page
*/
app.get('/admin', async (req, res, next) => {
if (req.session.user.isAdministrator) {
return res.render('pages/admin/admin', {
status: 'up',
internal: req.session.internal,
version: pkg.version,
session: req.session
});
}
else {
next(new Error(res.__('GeneralErrorMessageMissingAdminAccess')));
}
});
/**
* Admin: Canvas connection
*/
app.get('/admin/canvas', async (req, res, next) => {
if (req.session.user.isAdministrator) {
try {
const db_group_categories_filter = await db.getCourseGroupCategoryFilter(res.locals.courseId);
let canvas_group_categories = [];
try {
canvas_group_categories = await canvasApi.getCourseGroupCategories(res.locals.courseId, res.locals.token);
}
catch (error) {
log.error("Could not get group categories from Canvas API: " + error.message);
}
for (const c of canvas_group_categories) {
if (db_group_categories_filter.includes(c.id)) {
c.filtered_in_db = true;
}
else {
c.filtered_in_db = false;
}
}
const course_config = await db.getCanvasCourseConfiguration(res.locals.courseId);
const available_config_keys = [
{ key: 'FACETS_HIDE_SEGMENT' },
{ key: 'FACETS_HIDE_COURSE' },
{ key: 'FACETS_HIDE_INSTRUCTOR' },
{ key: 'FACETS_HIDE_LOCATION' },
{ key: 'FACETS_HIDE_AVAILABILITY' }
];
for (const k of available_config_keys) {
if (course_config.filter(c => c.key == k.key).map(c => c.value)[0] !== undefined) {
k.db_value = course_config.filter(c => c.key == k.key).map(c => c.value)[0];
}
else {
k.db_value = null;
}
}
/* return res.send({
status: 'up',
internal: req.session.internal,
version: pkg.version,
session: req.session,
data: {
canvas_course_id: res.locals.courseId,
canvas_course_name: req.session.lti.context_title,
canvas_group_categories: canvas_group_categories,
config_keys: available_config_keys,
}
}); */
return res.render('pages/admin/admin_canvas', {
status: 'up',
internal: req.session.internal,
version: pkg.version,
session: req.session,
data: {
canvas_course_id: res.locals.courseId,
canvas_course_name: req.session.lti.context_title,
canvas_group_categories: canvas_group_categories,
config_keys: available_config_keys,
}
});
}
catch (error) {
next(new Error(error));
}
}
else {
next(new Error(res.__('GeneralErrorMessageMissingAdminAccess')));
}
});
/**
* Admin: Courses (to create slots on)
*/
app.get('/admin/course', async (req, res, next) => {
if (req.session.user.isAdministrator) {
return res.render('pages/admin/admin_course', {
internal: req.session.internal,
session: req.session,
courses: await db.getAllCoursesWithStatistics(res.locals.courseId)
});
}
else {
next(new Error(res.__('GeneralErrorMessageMissingAdminAccess')));
}
});
/**
* Admin: Segments
*/
app.get('/admin/segment', async (req, res, next) => {
if (req.session.user.isAdministrator) {
return res.render('pages/admin/admin_segment', {
internal: req.session.internal,
session: req.session,
segments: await db.getSegmentsWithStatistics(res.locals.courseId)
});
}
else {
next(new Error(res.__('GeneralErrorMessageMissingAdminAccess')));
}
});
/**
* Admin: Instructors
*/
app.get('/admin/instructor', async (req, res, next) => {
if (req.session.user.isAdministrator) {
let course_instructors = await db.getInstructorsWithStatistics(res.locals.courseId);
return res.render('pages/admin/admin_instructor', {
internal: req.session.internal,
session: req.session,
instructors: course_instructors
});
}
else {
next(new Error(res.__('GeneralErrorMessageMissingAdminAccess')));
}
});
/**
* Admin: Locations
*/
app.get('/admin/location', async (req, res, next) => {
if (req.session.user.isAdministrator) {
return res.render('pages/admin/admin_location', {
internal: req.session.internal,
session: req.session,
locations: await db.getLocationsWithStatistics(res.locals.courseId)
});
}
else {
next(new Error(res.__('GeneralErrorMessageMissingAdminAccess')));
}
});
/**
* Admin: Exports (data exports)
*/
app.get('/admin/exports', async (req, res, next) => {
if (req.session.user.isAdministrator) {
return res.render('pages/admin/admin_exports', {
internal: req.session.internal,
session: req.session,
data: {
canvas_course_id: res.locals.courseId,
canvas_course_name: req.session.lti.context_title
}
});
}
else {
next(new Error(res.__('GeneralErrorMessageMissingAdminAccess')));
}
});
/* ===================== */
/* API Endpoints, public */
/* ===================== */
/* Get one slot */
app.get('/api/slot/:id', async (req, res, next) => {
try {
const slot = await db.getSlot(res, req.params.id)
// add info about reserved groups, needed for UI
// don't leak user information on individuals, not used
if (slot.type != 'individual') {
slot.reservations = await db.getSimpleSlotReservations(req.params.id);
}
else {
delete slot.res_user_ids;
delete slot.res_course_user_ids;
delete slot.res_group_ids;
delete slot.res_group_names;
delete slot.res_course_group_ids;
}
slot.shortcut = {
start_date: utils.getDatePart(slot.time_start),
end_date: utils.getDatePart(slot.time_end),
start_time: utils.getTimePart(slot.time_start),
end_time: utils.getTimePart(slot.time_end)
}
return res.send(slot);
}
catch (error) {
log.error(error);
return res.send({
success: false,
message: error.message
});
}
});
/**
* Reserve one slot.
* Includes logic that checks some things like max reservations, max of same type (course), already reserved.
* Sends messages to individuals, groups and cc to instructors with Conversations API and Conversations Robot.
*/
app.post('/api/reservation', async (req, res, next) => {
const { slot_id, group_id, user_id, message } = req.body;
try {
const slot = await db.getSlot(res, slot_id);
const t_time_now = new Date().getTime();
const t_time_slot = new Date(slot.time_start).getTime();
// TODO: Same code as in route for /, try to generalize
if (slot.res_now >= slot.res_max) {
throw new Error(res.__('SlotReservationFull'));
}
else if (t_time_slot <= t_time_now) {
throw new Error(res.__('SlotReservationTimeInPast'));
}
else {
if (slot.type == "group") {
// Check if any of this user's groups are reserved on this slot
if (slot.res_group_ids && slot.res_group_ids.filter(id => req.session.user.groups_ids?.includes(id)).length) {
throw new Error(res.__('SlotReservationGroupIsReserved'));
}
// Check how many times this user's groups are reserved on slots with the same course context
if (slot.res_course_group_ids && slot.reservable_for_this_user) {
if (slot.res_course_group_ids.filter(id => req.session.user.groups_ids?.includes(id)).length >= slot.course_max_per_type) {
throw new Error(res.__('SlotReservationIndividualMaxReservations', { max: slot.course_max_per_type, name: slot.course_name }));
}
}
}
else {
// Check if this user is reserved on this slot
if (slot.res_user_ids && slot.res_user_ids.includes(req.session.user.id)) {
throw new Error(res.__('SlotReservationIndividualIsReserved'));
}
// Check how many times this user is reserved on slots with the same course context
if (slot.res_course_user_ids && slot.reservable_for_this_user) {
if (slot.res_course_user_ids.filter(id => req.session.user.id == id).length >= slot.course_max_per_type) {
throw new Error(res.__('SlotReservationIndividualMaxReservations', { max: slot.course_max_per_type, name: slot.course_name }));
}
}
}
}
let group_name;
// In the form we get the group id, get the name from user's groups
if (slot.type == "group") {
for (const group of req.session.user.groups) {
if (group.id == group_id) {
group_name = group.name;
}
}
}
const reservation = await db.createSlotReservation(res, slot_id, req.session.user.id, req.session.user.name, group_id, group_name, message);
// Send confirmation messages with Canvas Conversation Robot to Inbox
log.debug("CONVERSATION_ROBOT_SEND_MESSAGES=" + process.env.CONVERSATION_ROBOT_SEND_MESSAGES);
if (process.env.CONVERSATION_ROBOT_API_TOKEN && process.env.CONVERSATION_ROBOT_SEND_MESSAGES == "true") {
try {
const course = await db.getCourse(slot.course_id);
const instructor = await db.getInstructor(slot.instructor_id);
if (slot.type == "group") {
const subject = res.__('ConversationRobotReservationSubjectPrefix') + group_name + ", " + course.name;
const subject_cc = res.__('ConversationRobotReservationCcSubjectPrefix') + group_name + ", " + course.name + " (" + req.session.user.name + ")";
const recipient = "group_" + group_id;
const template_type = "reservation_group_done";
let body = course.message_confirmation_body;
if (body === 'undefined' || body == '') {
body = utils.getTemplate(template_type);
}
if (body !== 'undefined' && body != '') {
body = utils.replaceMessageMagics(body, course.name, message, course.cancellation_policy_hours, req.session.user.name, slot.time_human_readable, slot.location_name, slot.location_url, slot.location_description, instructor.name, instructor.email, group_name, "", req.session.lti.context_title);
try {
await canvasApi.createConversation(recipient, subject, body, { token_type: "Bearer", access_token: process.env.CONVERSATION_ROBOT_API_TOKEN });
let log_id = await db.addCanvasConversationLog(slot_id, reservation.id, slot.canvas_course_id, recipient, subject, body);
log.info(`Sent confirmation message to [${recipient}] log id ${log_id.id}.`);
}
catch (error) {
let log_id_f = await db.addFailedCanvasConversationLog(slot_id, reservation.id, slot.canvas_course_id, recipient, subject, body, error.toString());
log.error(`Could not send message to [${recipient}] because of: ${error.toString()} - logging as failed with log id ${log_id_f.id}.`);
}
if (course.message_cc_instructor) {
try {
await canvasApi.createConversation(instructor.canvas_user_id, subject_cc, body, { token_type: "Bearer", access_token: process.env.CONVERSATION_ROBOT_API_TOKEN });
let log_id_cc = await db.addCanvasConversationLog(slot_id, reservation.id, slot.canvas_course_id, instructor.canvas_user_id, subject_cc, body);
log.info(`Sent a copy of confirmation message to the instructor, log id ${log_id_cc.id}.`);
}
catch (error) {
let log_id_f = await db.addFailedCanvasConversationLog(slot_id, reservation.id, slot.canvas_course_id, recipient, subject, body, error.toString());
log.error(`Could not send copy of message to instructor [${instructor.canvas_user_id}] because of: ${error.toString()} - logging as failed with log id ${log_id_f.id}.`);
}
}
// Get the updated slot with all reservations
const slot_now = await db.getSlot(res, slot_id);
// Slot is full and there should be a message to all groups reserved
if (course.message_all_when_full && slot_now.res_now == slot_now.res_max) {
let recipients = new Array();
let body_all = course.message_full_body;
if (body_all === 'undefined' || body_all == '') {
body_all = utils.getTemplate("reservation_group_full");
}
if (body_all !== 'undefined' && body_all != '') {
body_all = utils.replaceMessageMagics(body_all, course.name, message, course.cancellation_policy_hours, req.session.user.name, slot_now.time_human_readable, slot_now.location_name, slot_now.location_url, slot_now.location_description, instructor.name, instructor.email, group_name, slot_now.res_group_names.join(", "), req.session.lti.context_title);
for (const id of slot_now.res_group_ids) {
recipients.push("group_" + id);
}
const subject_all = res.__('ConversationRobotReservationFullSubjectPrefix') + course.name;
const subject_all_cc = res.__('ConversationRobotReservationFullCcSubjectPrefix') + course.name + " (" + slot_now.res_group_names.join(", ") + ")";
try {
await canvasApi.createConversation(recipients, subject_all, body_all, { token_type: "Bearer", access_token: process.env.CONVERSATION_ROBOT_API_TOKEN });
let log_id_all = await db.addCanvasConversationLog(slot_id, null, slot_now.canvas_course_id, recipients, subject_all, body_all);
log.info(`Sent connection message to [${recipients.join(", ")}] log id ${log_id_all.id}.`);
}
catch (error) {
let log_id_f = await db.addFailedCanvasConversationLog(slot_id, null, slot_now.canvas_course_id, recipients, subject_all, body_all, error.toString());
log.error(`Could not send connection message to [${recipients.join(", ")}] because of: ${error.toString()} - logging as failed with log id ${log_id_f.id}.`);
}
if (course.message_cc_instructor) {
try {
await canvasApi.createConversation(instructor.canvas_user_id, subject_all_cc, body_all, { token_type: "Bearer", access_token: process.env.CONVERSATION_ROBOT_API_TOKEN });
let log_id_all_cc = await db.addCanvasConversationLog(slot_id, null, slot.canvas_course_id, instructor.canvas_user_id, subject_all_cc, body_all);
log.info(`Sent a copy of connection message to the instructor, log id ${log_id_all_cc.id}.`);
}
catch (error) {
let log_id_f = await db.addFailedCanvasConversationLog(slot_id, null, slot_now.canvas_course_id, instructor.canvas_user_id, subject_all_cc, body_all, error.toString());
log.error(`Could not send copy of connection message to the instructor [${instructor.canvas_user_id}] because of: ${error.toString()} - logging as failed with log id ${log_id_f.id}.`);
}
}
}
else {
log.error("Flag 'message_all_when_full' is true, but could not find message body neither in template file 'reservation_group_full' or in db for courseId " + slot_now.course_id);
}
}
}
else {
log.error("Could not find message body neither in general template file '" + template_type + "' or in db for courseId " + slot.course_id);
}
}
else {
const subject = res.__('ConversationRobotReservationSubjectPrefix') + course.name;
const subject_cc = res.__('ConversationRobotReservationCcSubjectPrefix') + course.name + ", " + req.session.user.name;
const template_type = "reservation_individual_done";
let body = course.message_confirmation_body;
if (body === 'undefined' || body == '') {
body = utils.getTemplate(template_type);
}
if (body !== 'undefined' && body != '') {
body = utils.replaceMessageMagics(body, course.name, message, course.cancellation_policy_hours, req.session.user.name, slot.time_human_readable, slot.location_name, slot.location_url, slot.location_description, instructor.name, instructor.email, "", "", req.session.lti.context_title);
try {
await canvasApi.createConversation(req.session.user.id, subject, body, { token_type: "Bearer", access_token: process.env.CONVERSATION_ROBOT_API_TOKEN });
let log_id = await db.addCanvasConversationLog(slot_id, reservation.id, slot.canvas_course_id, req.session.user.id, subject, body);
log.info(`Sent confirmation message to the user [${req.session.user.id}], log id ${log_id.id}.`);
}
catch (error) {
let log_id_f = await db.addFailedCanvasConversationLog(slot_id, reservation.id, slot.canvas_course_id, req.session.user.id, subject, body, error.toString());
log.error(`Could not send confirmation message to the user [${req.session.user.id}] because of: ${error.toString()} - logging as failed with log id ${log_id_f.id}.`);
}
if (course.message_cc_instructor) {
try {
await canvasApi.createConversation(instructor.canvas_user_id, subject_cc, body, { token_type: "Bearer", access_token: process.env.CONVERSATION_ROBOT_API_TOKEN });
let log_id_cc = await db.addCanvasConversationLog(slot_id, reservation.id, slot.canvas_course_id, instructor.canvas_user_id, subject_cc, body);
log.info(`Sent a copy of confirmation message to the instructor [${instructor.canvas_user_id}], log id ${log_id_cc.id}.`);
}
catch (error) {
let log_id_f = await db.addFailedCanvasConversationLog(slot_id, reservation.id, slot.canvas_course_id, req.session.user.id, subject, body, error.toString());
log.error(`Could not send copy of confirmation message to the instructor [${instructor.canvas_user_id}] because of: ${error.toString()} - logging as failed with log id ${log_id_f.id}.`);
}
}
}
else {
log.error("Could not find message body neither in general template file '" + template_type + "' or in db for courseId " + slot.course_id);
}
}
}
catch (error) {
log.error("When sending confirmation message: " + error);
}
}
log.info("Reservation done, id " + reservation.id);
return res.send({
success: true,
message: "Tiden har bokats.",
reservation_id: reservation.id
});
}
catch (error) {
log.error(error);
return res.send({
success: false,
message: error.message
});
}
});
/* Get one reservation */
app.get('/api/reservation/:id', async (req, res, next) => {
try {
let reservation = await db.getReservation(res, req.session.user.id, req.session.user.groups_ids, req.params.id);
reservation.ics_file_name = crypto.createHash('md5').update(reservation.id.toString()).digest("hex") + ".ics";
return res.send(reservation);
}
catch (error) {
log.error(error);
return res.send({
success: false,
error: error
});
}
});
/**
* Get iCalendar entry for one specific slot reservation
*/
app.get('/api/reservation/:id/entry.ics', async (req, res, next) => {
try {
const reservation = await db.getReservation(res, req.session.user.id, req.session.user.groups_ids, req.params.id);
const ics = await ical.iCalendarEventFromReservation(reservation);
return res.contentType('text/calendar').send(ics);
}
catch (error) {
log.error(error);
return res.send({
success: false,
error: error.toString()
});
}
});
/* Delete a reservation */
app.delete('/api/reservation/:id', async (req, res) => {
try {
// Load reservation first to get attributes like is_cancelable
const reservation = await db.getReservation(res, req.session.user.id, req.session.user.groups_ids, req.params.id);
if (reservation.is_cancelable == false) {
throw new Error(res.__('CancelSlotReservationApiResponseNotCancellable'));
}
await db.deleteReservation(req.session.user.id, req.session.user.groups_ids, req.params.id);
// Send confirmation messages with Canvas Conversation Robot to Inbox
log.debug("CONVERSATION_ROBOT_SEND_MESSAGES=" + process.env.CONVERSATION_ROBOT_SEND_MESSAGES);
if (process.env.CONVERSATION_ROBOT_API_TOKEN && process.env.CONVERSATION_ROBOT_SEND_MESSAGES == "true") {
try {
const course = await db.getCourse(reservation.course_id);
const instructor = await db.getInstructor(reservation.instructor_id);
if (reservation.type == "group") {
const subject = res.__('ConversationRobotCancelReservationSubjectPrefix') + reservation.canvas_group_name + ", " + course.name;
const subject_cc = res.__('ConversationRobotCancelReservationCcSubjectPrefix') + reservation.canvas_group_name + ", " + course.name + " (" + req.session.user.name + ")";
const recipient = "group_" + reservation.canvas_group_id;
const template_type = "reservation_group_canceled";
let body = course.message_cancelled_body;
if (body === 'undefined' || body == '') {
body = utils.getTemplate(template_type);
}
if (body !== 'undefined' && body != '') {
body = utils.replaceMessageMagics(body, course.name, "", course.cancellation_policy_hours, req.session.user.name, reservation.time_human_readable, reservation.location_name, "", "", instructor.name, instructor.email, reservation.canvas_group_name, "", req.session.lti.context_title);
try {
await canvasApi.createConversation(recipient, subject, body, { token_type: "Bearer", access_token: process.env.CONVERSATION_ROBOT_API_TOKEN });
let log_id = await db.addCanvasConversationLog(reservation.slot_id, reservation.id, reservation.canvas_course_id, recipient, subject, body);
log.info(`Sent confirmation message for deleted reservation to [${recipient}], log id ${log_id.id}.`);
}
catch (error) {
let log_id_f = await db.addFailedCanvasConversationLog(reservation.slot_id, reservation.id, reservation.canvas_course_id, recipient, subject, body, error.toString());
log.error(`Could not send confirmation message for deleted reservation to [${recipient}] because of: ${error.toString()} - logging as failed with log id ${log_id_f.id}.`);
}
if (course.message_cc_instructor) {
try {
await canvasApi.createConversation(instructor.canvas_user_id, subject_cc, body, { token_type: "Bearer", access_token: process.env.CONVERSATION_ROBOT_API_TOKEN });
let log_id_cc = await db.addCanvasConversationLog(reservation.slot_id, reservation.id, reservation.canvas_course_id, instructor.canvas_user_id, subject_cc, body);
log.info(`Sent a copy of confirmation message of deleted reservation to the instructor [${instructor.canvas_user_id}], log id ${log_id_cc.id}.`);
}
catch (error) {
let log_id_f = await db.addFailedCanvasConversationLog(reservation.slot_id, reservation.id, reservation.canvas_course_id, instructor.canvas_user_id, subject_cc, body, error.toString());
log.error(`Cound not send copy of confirmation message for deleted reservation to the instructor [${instructor.canvas_user_id}] because of: ${error.toString()} - logging as failed with log id ${log_id_f.id}.`);
}
}
}
else {
log.error("Could not find message body neither in general template file '" + template_type + "' or in db for courseId " + reservation.course_id);
}
}
else {
const subject = res.__('ConversationRobotCancelReservationSubjectPrefix') + course.name;
const subject_cc = res.__('ConversationRobotCancelReservationCcSubjectPrefix') + course.name + ", " + req.session.user.name;
const template_type = "reservation_individual_canceled";
let body = course.message_cancelled_body;
if (body === 'undefined' || body == '') {
body = utils.getTemplate(template_type);
}
if (body !== 'undefined' && body != '') {
body = utils.replaceMessageMagics(body, course.name, "", course.cancellation_policy_hours, req.session.user.name, reservation.time_human_readable, reservation.location_name, "", "", instructor.name, instructor.email, "", "", req.session.lti.context_title);
try {
await canvasApi.createConversation(req.session.user.id, subject, body, { token_type: "Bearer", access_token: process.env.CONVERSATION_ROBOT_API_TOKEN });
let log_id = await db.addCanvasConversationLog(reservation.slot_id, reservation.id, reservation.canvas_course_id, req.session.user.id, subject, body);
log.info(`Sent confirmation message of deleted reservation to the user [${req.session.user.id}], log id ${log_id.id}.`);
}
catch (error) {
let log_id_f = await db.addFailedCanvasConversationLog(reservation.slot_id, reservation.id, reservation.canvas_course_id, req.session.user.id, subject, body, error.toString());
log.error(`Cound not send confirmation message for deleted reservation to the user [${req.session.user.id}] because of: ${error.toString()} - logging as failed with log id ${log_id_f.id}.`);
}
if (course.message_cc_instructor) {
try {
await canvasApi.createConversation(instructor.canvas_user_id, subject_cc, body, { token_type: "Bearer", access_token: process.env.CONVERSATION_ROBOT_API_TOKEN });
let log_id_cc = await db.addCanvasConversationLog(reservation.slot_id, reservation.id, reservation.canvas_course_id, instructor.canvas_user_id, subject_cc, body);
log.info(`Sent a copy of confirmation message of deleted reservation to the instructor [${instructor.canvas_user_id}], log id ${log_id_cc.id}.`);
}
catch (error) {