Add scheduling availability settings

apps/dav/appinfo/info.xml

@@ -60,6 +60,7 @@
 
 	<settings>
 		<admin>OCA\DAV\Settings\CalDAVSettings</admin>
+		<personal>OCA\DAV\Settings\AvailabilitySettings</personal>
 	</settings>
 
 	<activity>

apps/dav/composer/composer/autoload_classmap.php

@@ -277,6 +277,7 @@
     'OCA\\DAV\\Search\\EventsSearchProvider' => $baseDir . '/../lib/Search/EventsSearchProvider.php',
     'OCA\\DAV\\Search\\TasksSearchProvider' => $baseDir . '/../lib/Search/TasksSearchProvider.php',
     'OCA\\DAV\\Server' => $baseDir . '/../lib/Server.php',
+    'OCA\\DAV\\Settings\\AvailabilitySettings' => $baseDir . '/../lib/Settings/AvailabilitySettings.php',
     'OCA\\DAV\\Settings\\CalDAVSettings' => $baseDir . '/../lib/Settings/CalDAVSettings.php',
     'OCA\\DAV\\Storage\\PublicOwnerWrapper' => $baseDir . '/../lib/Storage/PublicOwnerWrapper.php',
     'OCA\\DAV\\SystemTag\\SystemTagMappingNode' => $baseDir . '/../lib/SystemTag/SystemTagMappingNode.php',

apps/dav/composer/composer/autoload_static.php

@@ -292,6 +292,7 @@ class ComposerStaticInitDAV
         'OCA\\DAV\\Search\\EventsSearchProvider' => __DIR__ . '/..' . '/../lib/Search/EventsSearchProvider.php',
         'OCA\\DAV\\Search\\TasksSearchProvider' => __DIR__ . '/..' . '/../lib/Search/TasksSearchProvider.php',
         'OCA\\DAV\\Server' => __DIR__ . '/..' . '/../lib/Server.php',
+        'OCA\\DAV\\Settings\\AvailabilitySettings' => __DIR__ . '/..' . '/../lib/Settings/AvailabilitySettings.php',
         'OCA\\DAV\\Settings\\CalDAVSettings' => __DIR__ . '/..' . '/../lib/Settings/CalDAVSettings.php',
         'OCA\\DAV\\Storage\\PublicOwnerWrapper' => __DIR__ . '/..' . '/../lib/Storage/PublicOwnerWrapper.php',
         'OCA\\DAV\\SystemTag\\SystemTagMappingNode' => __DIR__ . '/..' . '/../lib/SystemTag/SystemTagMappingNode.php',

apps/dav/lib/Settings/AvailabilitySettings.php

@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * @copyright 2021 Christoph Wurst <[email protected]>
+ *
+ * @author 2021 Christoph Wurst <[email protected]>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OCA\DAV\Settings;
+
+use OCA\DAV\AppInfo\Application;
+use OCP\AppFramework\Http\TemplateResponse;
+use OCP\Settings\ISettings;
+
+class AvailabilitySettings implements ISettings {
+	public function getForm(): TemplateResponse {
+		return new TemplateResponse(Application::APP_ID, 'settings-personal-availability');
+	}
+
+	public function getSection(): string {
+		return 'groupware';
+	}
+
+	public function getPriority(): int {
+		return 10;
+	}
+}

apps/dav/src/dav/client.js

@@ -0,0 +1,39 @@
+/*
+ * @copyright 2021 Christoph Wurst <[email protected]>
+ *
+ * @author 2021 Christoph Wurst <[email protected]>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import * as webdav from 'webdav'
+import axios from '@nextcloud/axios'
+import memoize from 'lodash/fp/memoize'
+import { generateRemoteUrl } from '@nextcloud/router'
+import { getCurrentUser } from '@nextcloud/auth'
+
+export const getClient = memoize((service) => {
+	// Add this so the server knows it is an request from the browser
+	axios.defaults.headers['X-Requested-With'] = 'XMLHttpRequest'
+
+	// force our axios
+	const patcher = webdav.getPatcher()
+	patcher.patch('request', axios)
+
+	return webdav.createClient(
+		generateRemoteUrl(`dav/${service}/${getCurrentUser().uid}`)
+	)
+})

apps/dav/src/service/CalendarService.js

@@ -0,0 +1,147 @@
+/**
+ * @copyright 2021 Christoph Wurst <[email protected]>
+ *
+ * @author 2021 Christoph Wurst <[email protected]>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+import { getClient } from '../dav/client'
+import ICAL from 'ical.js'
+import logger from './logger'
+import { parseXML } from 'webdav/dist/node/tools/dav'
+import { v4 as uuidv4 } from 'uuid'
+
+export function getEmptySlots() {
+	return {
+		MO: [],
+		TU: [],
+		WE: [],
+		TH: [],
+		FR: [],
+		SA: [],
+		SU: [],
+	}
+}
+
+export async function findScheduleInboxAvailability() {
+	const client = getClient('calendars')
+
+	const response = await client.customRequest('inbox', {
+		method: 'PROPFIND',
+		data: `<?xml version="1.0"?>
+			<x0:propfind xmlns:x0="DAV:">
+			  <x0:prop>
+				<x1:calendar-availability xmlns:x1="urn:ietf:params:xml:ns:caldav"/>
+			  </x0:prop>
+			</x0:propfind>`
+	})
+
+	const xml = await parseXML(response.data)
+
+	if (!xml) {
+		return undefined
+	}
+
+	const availability = xml?.multistatus?.response[0]?.propstat?.prop['calendar-availability']
+	if (!availability) {
+		return undefined
+	}
+
+	const parsedIcal = ICAL.parse(availability)
+
+	const vcalendarComp = new ICAL.Component(parsedIcal)
+	const vavailabilityComp = vcalendarComp.getFirstSubcomponent('vavailability')
+	const availableComps = vavailabilityComp.getAllSubcomponents('available')
+
+	// Combine all AVAILABLE blocks into a week of slots
+	const slots = getEmptySlots()
+	availableComps.forEach((availableComp) => {
+		const start = availableComp.getFirstProperty('dtstart').getFirstValue().toJSDate()
+		const end = availableComp.getFirstProperty('dtend').getFirstValue().toJSDate()
+		const rrule = availableComp.getFirstProperty('rrule')
+
+		if (rrule.getFirstValue().freq !== 'WEEKLY') {
+			logger.warn('rrule not supported', {
+				rrule: rrule.toICALString(),
+			})
+			return
+		}
+
+		rrule.getFirstValue().getComponent('BYDAY').forEach(day => {
+			slots[day].push({
+				start,
+				end,
+			})
+		})
+	})
+
+	return {
+		slots,
+	}
+}
+
+export async function saveScheduleInboxAvailability(slots, timezoneId) {
+	const all = [...Object.keys(slots).flatMap(dayId => slots[dayId].map(slot => ({
+		...slot,
+		day: dayId,
+	})))]
+
+	const vavailabilityComp = new ICAL.Component('vavailability')
+	// TODO: deduplicate slots that occur on more than one day
+	all.map(slot => {
+		const availableComp = new ICAL.Component('available')
+
+		// Define DTSTART and DTEND
+		// TODO: tz? moment.tz(dateTime, timezone).toDate()
+		const startTimeProp = availableComp.addPropertyWithValue('dtstart', ICAL.Time.fromJSDate(slot.start, false))
+		startTimeProp.setParameter('tzid', timezoneId)
+		const endTimeProp = availableComp.addPropertyWithValue('dtend', ICAL.Time.fromJSDate(slot.end, false))
+		endTimeProp.setParameter('tzid', timezoneId)
+
+		// Add mandatory UID
+		availableComp.addPropertyWithValue('uid', uuidv4())
+
+		// TODO: add optional summary
+
+		// Define RRULE
+		availableComp.addPropertyWithValue('rrule', {
+			freq: 'WEEKLY',
+			byday: slot.day,
+		})
+
+		return availableComp
+	}).map(vavailabilityComp.addSubcomponent.bind(vavailabilityComp))
+
+	const vcalendarComp = new ICAL.Component('vcalendar')
+	vcalendarComp.addSubcomponent(vavailabilityComp)
+	logger.debug('New availability ical created', {
+		asObject: vcalendarComp,
+		asString: vcalendarComp.toString(),
+	})
+
+	const client = getClient('calendars')
+	await client.customRequest('inbox', {
+		method: 'PROPPATCH',
+		data: `<?xml version="1.0"?>
+			<x0:propertyupdate xmlns:x0="DAV:">
+			  <x0:set>
+				<x0:prop>
+				  <x1:calendar-availability xmlns:x1="urn:ietf:params:xml:ns:caldav">${vcalendarComp.toString()}</x1:calendar-availability>
+				</x0:prop>
+			  </x0:set>
+			</x0:propertyupdate>`
+	})
+}

apps/dav/src/service/logger.js

@@ -0,0 +1,28 @@
+/*
+ * @copyright 2021 Christoph Wurst <[email protected]>
+ *
+ * @author 2021 Christoph Wurst <[email protected]>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+import { getLoggerBuilder } from '@nextcloud/logger'
+
+const logger = getLoggerBuilder()
+	.setApp('dav')
+	.detectUser()
+	.build()
+
+export default logger

apps/dav/src/settings-personal-availability.js

@@ -0,0 +1,9 @@
+import Vue from 'vue'
+import { translate } from '@nextcloud/l10n'
+import Availability from './views/Availability'
+
+Vue.prototype.$t = translate
+
+const View = Vue.extend(Availability);
+
+(new View({})).$mount('#settings-personal-availability')