Files
node-red-contrib-nextcloud/nextcloud-cal.js
2021-02-22 01:03:28 +01:00

115 lines
4.6 KiB
JavaScript

module.exports = function(RED){
const dav = require('dav')
const IcalExpander = require('ical-expander')
const moment = require('moment')
const https = require('https')
function NextcloudCalDav (config) {
RED.nodes.createNode(this, config)
this.server = RED.nodes.getNode(config.server)
this.calendar = config.calendar
this.pastWeeks = config.pastWeeks || 0
this.futureWeeks = config.futureWeeks || 4
const node = this
node.on('input', (msg) => {
let startDate = moment().startOf('day').subtract(this.pastWeeks, 'weeks')
let endDate = moment().endOf('day').add(this.futureWeeks, 'weeks')
const filters = [{
type: 'comp-filter',
attrs: { name: 'VCALENDAR' },
children: [{
type: 'comp-filter',
attrs: { name: 'VEVENT' },
children: [{
type: 'time-range',
attrs: {
start: startDate.format('YYYYMMDD[T]HHmmss[Z]'),
end: endDate.format('YYYYMMDD[T]HHmmss[Z]')
}
}]
}]
}]
// dav.debug.enabled = true;
const xhr = new dav.transport.Basic(
new dav.Credentials({
username: node.server.credentials.user,
password: node.server.credentials.pass
})
)
// Server + Basepath
let calDavUri = node.server.address + '/remote.php/dav/calendars/'
// User
calDavUri += node.server.credentials.user + '/'
dav.createAccount({ server: calDavUri, xhr: xhr, loadCollections: true, loadObjects: true })
.then(function (account) {
if (!account.calendars) {
node.error('Nextcloud:CalDAV -> no calendars found.')
return
}
// account instanceof dav.Account
account.calendars.forEach(function (calendar) {
// Wenn Kalender gesetzt ist, dann nur diesen abrufen
let calName = msg.calendar || node.calendar
if (!calName || !calName.length || (calName && calName.length && calName === calendar.displayName)) {
dav.listCalendarObjects(calendar, { xhr: xhr, filters: filters })
.then(function (calendarEntries) {
let msg = { 'payload': { 'name': calendar.displayName, 'data': [] } }
calendarEntries.forEach(function (calendarEntry) {
try {
const ics = calendarEntry.calendarData
const icalExpander = new IcalExpander({ ics, maxIterations: 100 })
const events = icalExpander.between(startDate.toDate(), endDate.toDate())
msg.payload.data = msg.payload.data.concat(convertEvents(events))
} catch (error) {
node.error('Error parsing calendar data: ' + error)
}
})
node.send(msg)
}, function () {
node.error('Nextcloud:CalDAV -> get ics went wrong.')
})
}
})
}, function () {
node.error('Nextcloud:CalDAV -> get calendars went wrong.')
})
})
function convertEvents (events) {
const mappedEvents = events.events.map(_convertEvent)
const mappedOccurrences = events.occurrences.map(_convertEvent)
return [].concat(mappedEvents, mappedOccurrences)
}
function _convertEvent (e) {
if (e) {
let startDate = e.startDate.toString()
let endDate = e.endDate.toString()
if (e.item) {
e = e.item
}
if (e.duration.wrappedJSObject) {
delete e.duration.wrappedJSObject
}
return {
startDate: startDate,
endDate: endDate,
summary: e.summary || '',
description: e.description || '',
attendees: e.attendees,
duration: e.duration.toICALString(),
durationSeconds: e.duration.toSeconds(),
location: e.location || '',
organizer: e.organizer || '',
uid: e.uid || '',
isRecurring: false,
allDay: ((e.duration.toSeconds() % 86400) === 0)
}
}
}
}
RED.nodes.registerType('nextcloud-caldav', NextcloudCalDav)
}