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path: root/Zotlabs/Module/Chat.php
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<?php /** @file */

namespace Zotlabs\Module;

use App;
use Zotlabs\Lib\Apps;
use Zotlabs\Web\Controller;
use Zotlabs\Lib\Chatroom;
use Zotlabs\Access\AccessList;
use Zotlabs\Lib\Libsync;

require_once('include/bookmarks.php');

class Chat extends Controller {

	function init() {

		$which = null;
		if(argc() > 1)
			$which = argv(1);
		if(! $which) {
			if(local_channel()) {
				$channel = App::get_channel();
				if($channel && $channel['channel_address'])
				$which = $channel['channel_address'];
			}
		}
		if(! $which) {
			notice( t('You must be logged in to see this page.') . EOL );
			return;
		}

		$profile = 0;
		$channel = App::get_channel();

		if((local_channel()) && (argc() > 2) && (argv(2) === 'view')) {
			$which = $channel['channel_address'];
			$profile = argv(1);
		}

		// Run profile_load() here to make sure the theme is set before
		// we start loading content

		profile_load($which,$profile);

	}

	function post() {

		if($_POST['room_name'])
			$room = strip_tags(trim($_POST['room_name']));

		if((! $room) || (! local_channel()))
			return;

		$channel = App::get_channel();


		if($_POST['action'] === 'drop') {
			logger('delete chatroom');
			Chatroom::destroy($channel,array('cr_name' => $room));
			goaway(z_root() . '/chat/' . $channel['channel_address']);
		}

		$acl = new AccessList($channel);
		$acl->set_from_array($_REQUEST);

		$arr = $acl->get();
		$arr['name'] = $room;
		$arr['expire'] = intval($_POST['chat_expire']);
		if(intval($arr['expire']) < 0)
			$arr['expire'] = 0;

		Chatroom::create($channel,$arr);

		$x = q("select * from chatroom where cr_name = '%s' and cr_uid = %d limit 1",
			dbesc($room),
			intval(local_channel())
		);

		Libsync::build_sync_packet(0, array('chatroom' => $x));

		if($x)
			goaway(z_root() . '/chat/' . $channel['channel_address'] . '/' . $x[0]['cr_id']);

		// that failed. Try again perhaps?

		goaway(z_root() . '/chat/' . $channel['channel_address'] . '/new');


	}


	function get() {

		if(! Apps::system_app_installed(App::$profile_uid, 'Chatrooms')) {
			//Do not display any associated widgets at this point
			App::$pdl = '';
			$papp = Apps::get_papp('Chatrooms');
			return Apps::app_render($papp, 'module');
		}

		if(local_channel()) {
			$channel = App::get_channel();
			nav_set_selected('Chatrooms');
		}

		$ob = App::get_observer();
		$observer = get_observer_hash();
		if(! $observer) {
			notice( t('Permission denied.') . EOL);
			return;
		}

		if(! perm_is_allowed(App::$profile['profile_uid'],$observer,'chat')) {
			notice( t('Permission denied.') . EOL);
			return;
		}

		if((argc() > 3) && intval(argv(2)) && (argv(3) === 'leave')) {
			Chatroom::leave($observer,argv(2),$_SERVER['REMOTE_ADDR']);
			goaway(z_root() . '/channel/' . argv(1));
		}


		if((argc() > 3) && intval(argv(2)) && (argv(3) === 'status')) {
			$ret = array('success' => false);
			$room_id = intval(argv(2));
			if(! $room_id || ! $observer)
				return;

			$r = q("select * from chatroom where cr_id = %d limit 1",
				intval($room_id)
			);
			if(! $r) {
				json_return_and_die($ret);
			}
			require_once('include/security.php');
			$sql_extra = permissions_sql($r[0]['cr_uid']);

			$x = q("select * from chatroom where cr_id = %d and cr_uid = %d $sql_extra limit 1",
				intval($room_id),
				intval($r[0]['cr_uid'])
			);
			if(! $x) {
				json_return_and_die($ret);
			}
			$y = q("select count(*) as total from chatpresence where cp_room = %d",
				intval($room_id)
			);
			if($y) {
				$ret['success'] = true;
				$ret['chatroom'] = $r[0]['cr_name'];
				$ret['inroom'] = $y[0]['total'];
			}

			// figure out how to present a timestamp of the last activity, since we don't know the observer's timezone.

			$z = q("select created from chat where chat_room = %d order by created desc limit 1",
				intval($room_id)
			);
			if($z) {
				$ret['last'] = $z[0]['created'];
			}
			json_return_and_die($ret);
		}


		if(argc() > 2 && intval(argv(2))) {

			$room_id = intval(argv(2));
			$bookmark_link = get_bookmark_link($ob);

			$x = Chatroom::enter($observer,$room_id,'online',$_SERVER['REMOTE_ADDR']);
			if(! $x)
				return;
			$x = q("select * from chatroom where cr_id = %d and cr_uid = %d $sql_extra limit 1",
				intval($room_id),
				intval(App::$profile['profile_uid'])
			);

			if($x) {
				$acl = new AccessList(false);
				$acl->set($x[0]);

				$private = $acl->is_private();
				$room_name = $x[0]['cr_name'];
				if($bookmark_link)
					$bookmark_link .= '&url=' . z_root() . '/chat/' . argv(1) . '/' . argv(2) . '&title=' . urlencode($x[0]['cr_name']) . (($private) ? '&private=1' : '') . '&ischat=1';
			}
			else {
				notice( t('Room not found') . EOL);
				return;
			}

			$cipher = get_pconfig(local_channel(),'system','default_cipher');
			if(! $cipher)
				$cipher = 'AES-128-CCM';


			$o = replace_macros(get_markup_template('chat.tpl'),array(
				'$is_owner' => ((local_channel() && local_channel() == $x[0]['cr_uid']) ? true : false),
				'$room_name' => $room_name,
				'$room_id' => $room_id,
				'$baseurl' => z_root(),
				'$nickname' => argv(1),
				'$submit' => t('Submit'),
				'$leave' => t('Leave Room'),
				'$drop' => t('Delete Room'),
				'$away' => t('I am away right now'),
				'$online' => t('I am online'),
				'$bookmark_link' => $bookmark_link,
				'$bookmark' => t('Bookmark this room'),
				'$feature_encrypt' => ((feature_enabled(local_channel(),'content_encrypt')) ? true : false),
				'$cipher' => $cipher,
				'$linkurl' => t('Please enter a link URL:'),
				'$encrypt' => t('Encrypt text'),
				'$insert' => t('Insert web link')
			));
			return $o;
		}

		require_once('include/conversation.php');

		$o = '';

		$acl = new AccessList($channel);
		$channel_acl = $acl->get();

		$lockstate = (($channel_acl['allow_cid'] || $channel_acl['allow_gid'] || $channel_acl['deny_cid'] || $channel_acl['deny_gid']) ? 'lock' : 'unlock');
		require_once('include/acl_selectors.php');

		$chatroom_new = '';
		if(local_channel()) {
			$chatroom_new = replace_macros(get_markup_template('chatroom_new.tpl'),array(
				'$header' => t('New Chatroom'),
				'$name' => array('room_name',t('Chatroom name'),'', ''),
				'$chat_expire' => array('chat_expire',t('Expiration of chats (minutes)'),120,''),
				'$permissions' =>  t('Permissions'),
				'$acl' => populate_acl($channel_acl,false),
				'$allow_cid' => acl2json($channel_acl['allow_cid']),
				'$allow_gid' => acl2json($channel_acl['allow_gid']),
				'$deny_cid' => acl2json($channel_acl['deny_cid']),
				'$deny_gid' => acl2json($channel_acl['deny_gid']),
				'$lockstate' => $lockstate,
				'$submit' => t('Submit')

			));
		}

		$rooms = Chatroom::roomlist(App::$profile['profile_uid']);

		$o .= replace_macros(get_markup_template('chatrooms.tpl'), array(
			'$header' => sprintf( t('%1$s\'s Chatrooms'), App::$profile['fullname']),
			'$name' => t('Name'),
			'$baseurl' => z_root(),
			'$nickname' => App::$profile['channel_address'],
			'$rooms' => $rooms,
			'$norooms' => t('No chatrooms available'),
			'$newroom' => t('Add Room'),
			'$is_owner' => ((local_channel() && local_channel() == App::$profile['profile_uid']) ? 1 : 0),
			'$chatroom_new' => $chatroom_new,
			'$expire' => t('Expiration'),
			'$expire_unit' => t('min') //minutes
		));

		return $o;

	}

}