streams/Code/Widget/Cdav.php

<?php

namespace Code\Widget;

use App;
use DBA;
use Sabre\CardDAV\Backend\PDO;
use Code\Lib\Channel;
use Code\Render\Theme;


class Cdav implements WidgetInterface
{

    public function widget(array $arguments): string
    {
        if (!local_channel()) {
            return '';
        }

        $channel = App::get_channel();
        $principalUri = 'principals/' . $channel['channel_address'];

        if (!cdav_principal($principalUri)) {
            return '';
        }

        $pdo = DBA::$dba->db;

        require_once 'vendor/autoload.php';

        $o = '';

        if (argc() <= 3 && argv(1) === 'calendar') {
            $caldavBackend = new \Sabre\CalDAV\Backend\PDO($pdo);

            $sabrecals = $caldavBackend->getCalendarsForUser($principalUri);

            //TODO: we should probably also check for permission to send stream here
            $local_channels = q(
                "SELECT * FROM channel LEFT JOIN abook ON abook_xchan = channel_hash WHERE channel_system = 0 AND channel_removed = 0 AND channel_hash != '%s' AND abook_channel = %d",
                dbesc($channel['channel_hash']),
                intval($channel['channel_id'])
            );

            $sharee_options = '<option value="">' . t('Select Channel') . '</option>' . "\r\n";
            foreach ($local_channels as $local_channel) {
                $sharee_options .= '<option value="' . $local_channel['channel_hash'] . '">' . $local_channel['channel_name'] . '</option>' . "\r\n";
            }

            $access_options = '<option value="3">' . t('Read-write') . '</option>' . "\r\n";
            $access_options .= '<option value="2">' . t('Read-only') . '</option>' . "\r\n";

            //list calendars
            foreach ($sabrecals as $sabrecal) {
                if ($sabrecal['share-access'] == 1) {
                    $access = '';
                }
                if ($sabrecal['share-access'] == 2) {
                    $access = 'read';
                }
                if ($sabrecal['share-access'] == 3) {
                    $access = 'read-write';
                }

                $invites = $caldavBackend->getInvites($sabrecal['id']);

                $json_source = '/cdav/calendar/json/' . $sabrecal['id'][0] . '/' . $sabrecal['id'][1];

                $switch = get_pconfig(local_channel(), 'cdav_calendar', $sabrecal['id'][0]);

                $color = (($sabrecal['{http://apple.com/ns/ical/}calendar-color']) ? $sabrecal['{http://apple.com/ns/ical/}calendar-color'] : '#6cad39');

                $editable = (($sabrecal['share-access'] == 2) ? 'false' : 'true'); // false/true must be string since we're passing it to javascript

                $sharees = [];
                $share_displayname = [];

                foreach ($invites as $invite) {
                    if (str_contains($invite->href, 'mailto:')) {
                        $sharee = Channel::from_username(substr($invite->principal, 11));
                        $sharees[] = [
                            'name' => $sharee['channel_name'],
                            'access' => (($invite->access == 3) ? ' (RW)' : ' (R)'),
                            'hash' => $sharee['channel_hash']
                        ];
                    }
                }

                if (!$access) {
                    $my_calendars[] = [
                        'ownernick' => $channel['channel_address'],
                        'uri' => $sabrecal['uri'],
                        'displayname' => $sabrecal['{DAV:}displayname'],
                        'calendarid' => $sabrecal['id'][0],
                        'instanceid' => $sabrecal['id'][1],
                        'json_source' => $json_source,
                        'color' => $color,
                        'editable' => $editable,
                        'switch' => $switch,
                        'sharees' => $sharees
                    ];
                } else {
                    $shared_calendars[] = [
                        'ownernick' => $channel['channel_address'],
                        'uri' => $sabrecal['uri'],
                        'displayname' => $sabrecal['{DAV:}displayname'],
                        'calendarid' => $sabrecal['id'][0],
                        'instanceid' => $sabrecal['id'][1],
                        'json_source' => $json_source,
                        'color' => $color,
                        'editable' => $editable,
                        'switch' => $switch,
                        'sharer' => $sabrecal['{urn:ietf:params:xml:ns:caldav}calendar-description'],
                        'access' => $access
                    ];
                }

                if (!$access || $access === 'read-write') {
                    $writable_calendars[] = [
                        'displayname' => ((!$access) ? $sabrecal['{DAV:}displayname'] : $share_displayname[0]),
                        'id' => $sabrecal['id']
                    ];
                }
            }

            $calendars[] = [
                'ownernick' => $channel['channel_address'],
                'displayname' => $channel['channel_name'],
                'calendarid' => 'calendar',
                'json_source' => '/calendar/json',
                'color' => '#3a87ad',
                'editable' => true,
                'switch' => get_pconfig(local_channel(), 'cdav_calendar', 'calendar')
            ];

            $o .= replace_macros(Theme::get_template('cdav_widget_calendar.tpl'), [
                '$calendars_label' => t('Channel Calendar'),
                '$calendars' => $calendars,
                '$my_calendars_label' => t('CalDAV Calendars'),
                '$my_calendars' => $my_calendars,
                '$shared_calendars_label' => t('Shared CalDAV Calendars'),
                '$shared_calendars' => $shared_calendars,
                '$sharee_options' => $sharee_options,
                '$access_options' => $access_options,
                '$share_label' => t('Share this calendar'),
                '$share' => t('Share'),
                '$edit_label' => t('Calendar name and color'),
                '$edit' => t('Edit'),
                '$create_label' => t('Create new CalDAV calendar'),
                '$create' => t('Create'),
                '$create_placeholder' => t('Calendar Name'),
                '$tools_label' => t('Calendar Tools'),
                '$tools_options_label' => [t('Channel Calendars'), t('CalDAV Calendars')],
                '$import_label' => t('Import calendar'),
                '$import_placeholder' => t('Select a calendar to import to'),
                '$upload' => t('Upload'),
                '$writable_calendars' => $writable_calendars
            ]);

            return $o;
        }

        if (argc() >= 2 && argv(1) === 'addressbook') {
            $carddavBackend = new PDO($pdo);

            $sabreabooks = $carddavBackend->getAddressBooksForUser($principalUri);

            //list addressbooks
            foreach ($sabreabooks as $sabreabook) {
                $addressbooks[] = [
                    'ownernick' => $channel['channel_address'],
                    'uri' => $sabreabook['uri'],
                    'displayname' => $sabreabook['{DAV:}displayname'],
                    'id' => $sabreabook['id']

                ];
            }

            $o .= replace_macros(Theme::get_template('cdav_widget_addressbook.tpl'), [
                '$addressbooks_label' => t('Addressbooks'),
                '$addressbooks' => $addressbooks,
                '$edit_label' => t('Addressbook name'),
                '$edit' => t('Edit'),
                '$create_label' => t('Create new addressbook'),
                '$create_placeholder' => t('Addressbook Name'),
                '$create' => t('Create'),
                '$tools_label' => t('Addressbook Tools'),
                '$import_label' => t('Import addressbook'),
                '$import_placeholder' => t('Select an addressbook to import to'),
                '$upload' => t('Upload')
            ]);

            return $o;
        }
        return '';
    }
}