Revert "version 8.6.3"

This reverts commit 1915f34de8f496d49d5b4be74570dba5f51b89b0

1 files changed, 2771 insertions, 2771 deletions

diff --git a/boot.php b/boot.php
index edb792c27..143d812b0 100644
--- a/boot.php
+++ b/boot.php
@@ -1,2771 +1,2771 @@
-<?php

-/**

- * @file boot.php

- *

- * @brief This file defines some global constants and includes the central App class.

- */

-

-/**

- *

- * This is an open source decentralised communications

- * platform combined with a decentralised identity/authentication framework

- * wrapped in an extensible content management system, providing website designers

- * the ability to embed fully decentralised communications and social tools

- * into many traditional website designs (blogs, forums, small business

- * websites, charitable organisations, etc.). Also provided is DNS mobility

- * and internet scale privacy/access control.

- *

- * This allows any individual website to participate in a matrix of linked

- * sites and people and media sharing which is far greater than the reach

- * of an individual site.

- *

- * If you are reading the source code and come across a function

- * or code block which is not documented, but you have a good idea what it

- * does, please add some descriptive comments and push it to the main project.

- * Even if your description isn't perfect, it gives us a base which we

- * can build on and correct - so that eventually everything is fully

- * documented.

- */

-

-// composer autoloader for all namespaced Classes

-

-use Zotlabs\Access\PermissionLimits;

-use Zotlabs\Access\PermissionRoles;

-use Zotlabs\Access\Permissions;

-use Zotlabs\Daemon\Master;

-use Zotlabs\Lib\DB_Upgrade;

-use Zotlabs\Lib\Libzot;

-use Zotlabs\Lib\Config;

-

-require_once('vendor/autoload.php');

-

-require_once('include/config.php');

-require_once('include/network.php');

-require_once('include/plugin.php');

-require_once('include/text.php');

-require_once('include/datetime.php');

-require_once('include/language.php');

-require_once('include/nav.php');

-require_once('include/permissions.php');

-require_once('include/features.php');

-require_once('include/taxonomy.php');

-require_once('include/channel.php');

-require_once('include/connections.php');

-require_once('include/account.php');

-require_once('include/zid.php');

-require_once('include/xchan.php');

-require_once('include/hubloc.php');

-require_once('include/attach.php');

-require_once('include/bbcode.php');

-require_once('include/items.php');

-

-define('PLATFORM_NAME', 'hubzilla');

-define('STD_VERSION', '8.6.3');

-define('ZOT_REVISION', '6.0');

-

-define('DB_UPDATE_VERSION', 1258);

-

-define('PROJECT_BASE', __DIR__);

-

-/**

- * @brief Constant with a HTML line break.

- *

- * Contains a HTML line break (br) element and a real carriage return with line

- * feed for the source.

- * This can be used in HTML and JavaScript where needed a line break.

- */

-define('EOL', '<br>' . "\r\n");

-define('EMPTY_STR', '');

-define('ATOM_TIME', 'Y-m-d\\TH:i:s\\Z'); // aka ISO 8601 "Zulu"

-define('TEMPLATE_BUILD_PATH', 'store/[data]/smarty3');

-

-define('DIRECTORY_MODE_NORMAL', 0x0000); // A directory client

-define('DIRECTORY_MODE_PRIMARY', 0x0001); // There can only be *one* primary directory server in a directory_realm.

-define('DIRECTORY_MODE_SECONDARY', 0x0002); // All other mirror directory servers

-define('DIRECTORY_MODE_STANDALONE', 0x0100); // A detached (off the grid) hub with itself as directory server.

-

-define('DIRECTORY_FLAG_OK',     0);

-define('DIRECTORY_FLAG_UNSAFE', 1);

-define('DIRECTORY_FLAG_HIDDEN', 2);

-

-// We will look for upstream directories whenever me make contact

-// with other sites, but if this is a new installation and isn't

-// a standalone hub, we need to seed the service with a starting

-// point to go out and find the rest of the world.

-

-define('DIRECTORY_REALM', 'RED_GLOBAL');

-define('DIRECTORY_FALLBACK_MASTER', 'https://hub.netzgemeinde.eu');

-

-

-function get_directory_fallback_servers() {

-	$ret = [

-		'https://hub.netzgemeinde.eu',

-		'https://zotsite.net'

-	];

-

-	return $ret;

-}

-

-

-/**

- *

- * Image storage quality. Lower numbers save space at cost of image detail.

- * For ease of upgrade, please do not change here. Change jpeg quality with

- * App::$config['system']['jpeg_quality'] = n;

- * in .htconfig.php, where n is netween 1 and 100, and with very poor results

- * below about 50

- */

-define('JPEG_QUALITY', 100);

-

-/**

- * App::$config['system']['png_quality'] from 0 (uncompressed) to 9

- */

-define('PNG_QUALITY', 8);

-

-/**

- * App::$config['system']['webp_quality'] from 1 (maximum compressed) to 100 (uncompressed)

- */

-define('WEBP_QUALITY', 80);

-

-/**

- * Language detection parameters

- */

-define('LANGUAGE_DETECT_MIN_LENGTH', 128);

-define('LANGUAGE_DETECT_MIN_CONFIDENCE', 0.01);

-

-

-/**

- * Default permissions for file-based storage (webDAV, etc.)

- * These files will be owned by the webserver who will need write

- * access to the "storage" folder.

- * Ideally you should make this 700, however some hosted platforms

- * may not let you change ownership of this directory so we're

- * defaulting to both owner-write and group-write privilege.

- * This should work for most cases without modification.

- * Over-ride this in your .htconfig.php if you need something

- * either more or less restrictive.

- */

-

-if (!defined('STORAGE_DEFAULT_PERMISSIONS')) {

-	define('STORAGE_DEFAULT_PERMISSIONS', 0770);

-}

-

-

-/**

- *

- * An alternate way of limiting picture upload sizes. Specify the maximum pixel

- * length that pictures are allowed to be (for non-square pictures, it will apply

- * to the longest side). Pictures longer than this length will be resized to be

- * this length (on the longest side, the other side will be scaled appropriately).

- * Modify this value using

- *

- *    App::$config['system']['max_image_length'] = n;

- *

- * in .htconfig.php

- *

- * If you don't want to set a maximum length, set to -1. The default value is

- * defined by 'MAX_IMAGE_LENGTH' below.

- *

- */

-define('MAX_IMAGE_LENGTH', -1);

-

-

-/**

- * log levels

- */

-

-define('LOGGER_NORMAL', 0);

-define('LOGGER_TRACE', 1);

-define('LOGGER_DEBUG', 2);

-define('LOGGER_DATA', 3);

-define('LOGGER_ALL', 4);

-

-

-/**

- * registration policies

- */

-

-define('REGISTER_CLOSED', 0);

-define('REGISTER_APPROVE', 1);

-define('REGISTER_OPEN', 2);

-

-

-/**

- * site access policy

- */

-

-define('ACCESS_PRIVATE', 0);

-define('ACCESS_PAID', 1);

-define('ACCESS_FREE', 2);

-define('ACCESS_TIERED', 3);

-

-/**

- * DB update return values

- */

-

-define('UPDATE_SUCCESS', 0);

-define('UPDATE_FAILED', 1);

-

-

-define('CLIENT_MODE_NORMAL', 0x0000);

-define('CLIENT_MODE_LOAD', 0x0001);

-define('CLIENT_MODE_UPDATE', 0x0002);

-

-

-/**

- *

- * Channel pageflags

- *

- */

-

-define('PAGE_NORMAL', 0x0000);

-define('PAGE_HIDDEN', 0x0001);

-define('PAGE_AUTOCONNECT', 0x0002);

-define('PAGE_APPLICATION', 0x0004);

-define('PAGE_ALLOWCODE', 0x0008);

-define('PAGE_PREMIUM', 0x0010);

-define('PAGE_ADULT', 0x0020);

-define('PAGE_CENSORED', 0x0040); // Site admin has blocked this channel from appearing in casual search results and site feeds

-define('PAGE_SYSTEM', 0x1000);

-define('PAGE_HUBADMIN', 0x2000); // set this to indicate a preferred admin channel rather than the

-// default channel of any accounts with the admin role.

-define('PAGE_REMOVED', 0x8000);

-

-

-/**

- * Photo usage types

- */

-

-define('PHOTO_NORMAL', 0x0000);

-define('PHOTO_PROFILE', 0x0001);

-define('PHOTO_XCHAN', 0x0002);

-define('PHOTO_THING', 0x0004);

-define('PHOTO_COVER', 0x0010);

-define('PHOTO_CACHE', 0x0020);

-

-define('PHOTO_ADULT', 0x0008);

-define('PHOTO_FLAG_OS', 0x4000);

-

-

-define('PHOTO_RES_ORIG', 0);

-define('PHOTO_RES_1024', 1);  // rectangular 1024 max width or height, floating height if not (4:3)

-define('PHOTO_RES_640', 2);  // to accomodate SMBC vertical comic strips without scrunching the width

-define('PHOTO_RES_320', 3);  // accordingly

-

-define('PHOTO_RES_PROFILE_300', 4);  // square 300 px

-define('PHOTO_RES_PROFILE_80', 5);  // square 80 px

-define('PHOTO_RES_PROFILE_48', 6);  // square 48 px

-

-define('PHOTO_RES_COVER_1200', 7);  // 1200w x 435h (2.75:1)

-define('PHOTO_RES_COVER_850', 8);  // 850w x 310h

-define('PHOTO_RES_COVER_425', 9);  // 425w x 160h

-

-

-/**

- * Menu types

- */

-

-define('MENU_SYSTEM', 0x0001);

-define('MENU_BOOKMARK', 0x0002);

-

-/**

- * Network and protocol family types

- */

-

-define('NETWORK_FRND', 'friendica-over-diaspora');    // Friendica, Mistpark, other DFRN implementations

-define('NETWORK_DFRN', 'dfrn');    // Friendica, Mistpark, other DFRN implementations

-define('NETWORK_ZOT', 'zot');     // Zot!

-define('NETWORK_OSTATUS', 'stat');    // status.net, identi.ca, GNU-social, other OStatus implementations

-define('NETWORK_GNUSOCIAL', 'gnusoc');    // status.net, identi.ca, GNU-social, other OStatus implementations

-define('NETWORK_FEED', 'rss');    // RSS/Atom feeds with no known "post/notify" protocol

-define('NETWORK_DIASPORA', 'diaspora');    // Diaspora

-define('NETWORK_ACTIVITYPUB', 'activitypub');

-define('NETWORK_MAIL', 'mail');    // IMAP/POP

-define('NETWORK_MAIL2', 'mai2');    // extended IMAP/POP

-define('NETWORK_FACEBOOK', 'face');    // Facebook API

-define('NETWORK_LINKEDIN', 'lnkd');    // LinkedIn

-define('NETWORK_XMPP', 'xmpp');    // XMPP

-define('NETWORK_MYSPACE', 'mysp');    // MySpace

-define('NETWORK_GPLUS', 'goog');    // Google+

-define('NETWORK_PHANTOM', 'unkn');    // Place holder

-

-

-/**

- * Permissions

- */

-

-define('PERMS_R_STREAM', 0x00001);

-define('PERMS_R_PROFILE', 0x00002);

-define('PERMS_R_PHOTOS', 0x00004);

-define('PERMS_R_ABOOK', 0x00008);

-

-define('PERMS_W_STREAM', 0x00010);

-define('PERMS_W_WALL', 0x00020);

-define('PERMS_W_TAGWALL', 0x00040);

-define('PERMS_W_COMMENT', 0x00080);

-define('PERMS_W_MAIL', 0x00100);

-define('PERMS_W_PHOTOS', 0x00200);

-define('PERMS_W_CHAT', 0x00400);

-define('PERMS_A_DELEGATE', 0x00800);

-

-define('PERMS_R_STORAGE', 0x01000);

-define('PERMS_W_STORAGE', 0x02000);

-define('PERMS_R_PAGES', 0x04000);

-define('PERMS_W_PAGES', 0x08000);

-define('PERMS_A_REPUBLISH', 0x10000);

-define('PERMS_W_LIKE', 0x20000);

-

-// General channel permissions

-// 0 = Only you

-define('PERMS_PUBLIC', 0x0001); // anybody

-define('PERMS_NETWORK', 0x0002); // anybody in this network

-define('PERMS_SITE', 0x0004); // anybody on this site

-define('PERMS_CONTACTS', 0x0008); // any of my connections

-define('PERMS_SPECIFIC', 0x0080); // only specific connections

-define('PERMS_AUTHED', 0x0100); // anybody authenticated (could include visitors from other networks)

-define('PERMS_PENDING', 0x0200); // any connections including those who haven't yet been approved

-

-// Address book flags

-

-define('ABOOK_FLAG_BLOCKED', 0x0001);

-define('ABOOK_FLAG_IGNORED', 0x0002);

-define('ABOOK_FLAG_HIDDEN', 0x0004);

-define('ABOOK_FLAG_ARCHIVED', 0x0008);

-define('ABOOK_FLAG_PENDING', 0x0010);

-define('ABOOK_FLAG_UNCONNECTED', 0x0020);

-define('ABOOK_FLAG_SELF', 0x0080);

-define('ABOOK_FLAG_FEED', 0x0100);

-

-

-define('MAIL_DELETED', 0x0001);

-define('MAIL_REPLIED', 0x0002);

-define('MAIL_ISREPLY', 0x0004);

-define('MAIL_SEEN', 0x0008);

-define('MAIL_RECALLED', 0x0010);

-define('MAIL_OBSCURED', 0x0020);

-

-

-define('ATTACH_FLAG_DIR', 0x0001);

-define('ATTACH_FLAG_OS', 0x0002);

-

-

-define('MENU_ITEM_ZID', 0x0001);

-define('MENU_ITEM_NEWWIN', 0x0002);

-define('MENU_ITEM_CHATROOM', 0x0004);

-

-

-define('SITE_TYPE_ZOT', 0);

-define('SITE_TYPE_NOTZOT', 1);

-define('SITE_TYPE_UNKNOWN', 2);

-

-/**

- * Poll/Survey types

- */

-

-define('POLL_SIMPLE_RATING', 0x0001);  // 1-5

-define('POLL_TENSCALE', 0x0002);  // 1-10

-define('POLL_MULTIPLE_CHOICE', 0x0004);

-define('POLL_OVERWRITE', 0x8000);  // If you vote twice remove the prior entry

-

-define('HUBLOC_OFFLINE', 0x0001);

-

-define('DROPITEM_NORMAL', 0);

-define('DROPITEM_PHASE1', 1);

-define('DROPITEM_PHASE2', 2);

-

-

-/**

- * Maximum number of "people who like (or don't like) this"  that we will list by name

- */

-

-define('MAX_LIKERS', 10);

-

-/**

- * Communication timeout

- */

-

-define('ZCURL_TIMEOUT', (-1));

-

-

-/**

- * email notification options

- */

-

-define('NOTIFY_INTRO', 0x0001);

-define('NOTIFY_CONFIRM', 0x0002);

-define('NOTIFY_WALL', 0x0004);

-define('NOTIFY_COMMENT', 0x0008);

-define('NOTIFY_MAIL', 0x0010);

-define('NOTIFY_SUGGEST', 0x0020);

-define('NOTIFY_PROFILE', 0x0040);

-define('NOTIFY_TAGSELF', 0x0080);

-define('NOTIFY_TAGSHARE', 0x0100);

-define('NOTIFY_POKE', 0x0200);

-define('NOTIFY_LIKE', 0x0400);

-

-define('NOTIFY_SYSTEM', 0x8000);

-

-/**

- * visual notification options

- */

-

-define('VNOTIFY_NETWORK', 0x0001);

-define('VNOTIFY_CHANNEL', 0x0002);

-define('VNOTIFY_MAIL', 0x0004);

-define('VNOTIFY_EVENT', 0x0008);

-define('VNOTIFY_EVENTTODAY', 0x0010);

-define('VNOTIFY_BIRTHDAY', 0x0020);

-define('VNOTIFY_SYSTEM', 0x0040);

-define('VNOTIFY_INFO', 0x0080);

-define('VNOTIFY_ALERT', 0x0100);

-define('VNOTIFY_INTRO', 0x0200);

-define('VNOTIFY_REGISTER', 0x0400);

-define('VNOTIFY_FILES', 0x0800);

-define('VNOTIFY_PUBS', 0x1000);

-define('VNOTIFY_LIKE', 0x2000);

-define('VNOTIFY_FORUMS', 0x4000);

-

-

-/**

- * Tag/term types

- */

-

-define('TERM_UNKNOWN', 0);

-define('TERM_HASHTAG', 1);

-define('TERM_MENTION', 2);

-define('TERM_CATEGORY', 3);

-define('TERM_PCATEGORY', 4);

-define('TERM_FILE', 5);

-define('TERM_SAVEDSEARCH', 6);

-define('TERM_THING', 7);

-define('TERM_BOOKMARK', 8);

-define('TERM_HIERARCHY', 9);

-define('TERM_COMMUNITYTAG', 10);

-define('TERM_FORUM', 11);

-define('TERM_EMOJI', 12);

-

-define('TERM_OBJ_POST', 1);

-define('TERM_OBJ_FILE', 2);

-define('TERM_OBJ_PROFILE', 3);

-define('TERM_OBJ_CHANNEL', 4);

-define('TERM_OBJ_OBJECT', 5);

-define('TERM_OBJ_THING', 6);

-define('TERM_OBJ_APP', 7);

-

-

-/**

- * various namespaces we may need to parse

- */

-define('PROTOCOL_ZOT', 'http://purl.org/zot/protocol');

-define('PROTOCOL_ZOT6', 'http://purl.org/zot/protocol/6.0');

-define('NAMESPACE_ZOT', 'http://purl.org/zot');

-define('NAMESPACE_DFRN', 'http://purl.org/macgirvin/dfrn/1.0');

-define('NAMESPACE_THREAD', 'http://purl.org/syndication/thread/1.0');

-define('NAMESPACE_TOMB', 'http://purl.org/atompub/tombstones/1.0');

-define('NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/');

-define('NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/');

-define('NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia');

-define('NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env');

-define('NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe');

-define('NAMESPACE_GEORSS', 'http://www.georss.org/georss');

-define('NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0');

-define('NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from');

-define('NAMESPACE_OSTATUS', 'http://ostatus.org/schema/1.0');

-define('NAMESPACE_STATUSNET', 'http://status.net/schema/api/1/');

-define('NAMESPACE_ATOM1', 'http://www.w3.org/2005/Atom');

-define('NAMESPACE_YMEDIA', 'http://search.yahoo.com/mrss/');

-

-// We should be using versioned jsonld contexts so that signatures will be slightly more reliable.

-// Why signatures are unreliable by design is a problem nobody seems to care about

-// "because it's a proposed W3C standard". .

-

-// Anyway, if you use versioned contexts, communication with Mastodon fails. Have not yet investigated

-// the reason for the dependency but for the current time, use the standard non-versioned context.

-//define ( 'ACTIVITYSTREAMS_JSONLD_REV', 'https://www.w3.org/ns/activitystreams-history/v1.8.jsonld' );

-

-define('ACTIVITYSTREAMS_JSONLD_REV', 'https://www.w3.org/ns/activitystreams');

-

-define('ZOT_APSCHEMA_REV', '/apschema/v1.10');

-/**

- * activity stream defines

- */

-

-define('ACTIVITY_PUBLIC_INBOX', 'https://www.w3.org/ns/activitystreams#Public');

-

-define('ACTIVITY_REACT', NAMESPACE_ZOT . '/activity/react');

-define('ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like');

-define('ACTIVITY_DISLIKE', NAMESPACE_ZOT . '/activity/dislike');

-define('ACTIVITY_AGREE', NAMESPACE_ZOT . '/activity/agree');

-define('ACTIVITY_DISAGREE', NAMESPACE_ZOT . '/activity/disagree');

-define('ACTIVITY_ABSTAIN', NAMESPACE_ZOT . '/activity/abstain');

-define('ACTIVITY_ATTEND', NAMESPACE_ZOT . '/activity/attendyes');

-define('ACTIVITY_ATTENDNO', NAMESPACE_ZOT . '/activity/attendno');

-define('ACTIVITY_ATTENDMAYBE', NAMESPACE_ZOT . '/activity/attendmaybe');

-define('ACTIVITY_POLLRESPONSE', NAMESPACE_ZOT . '/activity/pollresponse');

-

-define('ACTIVITY_OBJ_HEART', NAMESPACE_ZOT . '/activity/heart');

-

-define('ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend');

-define('ACTIVITY_REQ_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'request-friend');

-define('ACTIVITY_UNFRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend');

-define('ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow');

-define('ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following');

-define('ACTIVITY_JOIN', NAMESPACE_ACTIVITY_SCHEMA . 'join');

-

-define('ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post');

-define('ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update');

-define('ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag');

-define('ACTIVITY_SHARE', NAMESPACE_ACTIVITY_SCHEMA . 'share');

-define('ACTIVITY_FAVORITE', NAMESPACE_ACTIVITY_SCHEMA . 'favorite');

-define('ACTIVITY_CREATE', NAMESPACE_ACTIVITY_SCHEMA . 'create');

-define('ACTIVITY_DELETE', NAMESPACE_ACTIVITY_SCHEMA . 'delete');

-define('ACTIVITY_WIN', NAMESPACE_ACTIVITY_SCHEMA . 'win');

-define('ACTIVITY_LOSE', NAMESPACE_ACTIVITY_SCHEMA . 'lose');

-define('ACTIVITY_TIE', NAMESPACE_ACTIVITY_SCHEMA . 'tie');

-define('ACTIVITY_COMPLETE', NAMESPACE_ACTIVITY_SCHEMA . 'complete');

-

-define('ACTIVITY_POKE', NAMESPACE_ZOT . '/activity/poke');

-define('ACTIVITY_MOOD', NAMESPACE_ZOT . '/activity/mood');

-

-define('ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment');

-define('ACTIVITY_OBJ_ACTIVITY', NAMESPACE_ACTIVITY_SCHEMA . 'activity');

-define('ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note');

-define('ACTIVITY_OBJ_ARTICLE', NAMESPACE_ACTIVITY_SCHEMA . 'article');

-define('ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person');

-define('ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo');

-define('ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo');

-define('ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album');

-define('ACTIVITY_OBJ_EVENT', NAMESPACE_ACTIVITY_SCHEMA . 'event');

-define('ACTIVITY_OBJ_GROUP', NAMESPACE_ACTIVITY_SCHEMA . 'group');

-define('ACTIVITY_OBJ_GAME', NAMESPACE_ACTIVITY_SCHEMA . 'game');

-define('ACTIVITY_OBJ_WIKI', NAMESPACE_ACTIVITY_SCHEMA . 'wiki');

-define('ACTIVITY_OBJ_TAGTERM', NAMESPACE_ZOT . '/activity/tagterm');

-define('ACTIVITY_OBJ_PROFILE', NAMESPACE_ZOT . '/activity/profile');

-define('ACTIVITY_OBJ_THING', NAMESPACE_ZOT . '/activity/thing');

-define('ACTIVITY_OBJ_LOCATION', NAMESPACE_ZOT . '/activity/location');

-define('ACTIVITY_OBJ_FILE', NAMESPACE_ZOT . '/activity/file');

-define('ACTIVITY_OBJ_CARD', NAMESPACE_ZOT . '/activity/card');

-

-/**

- * Account Flags

- */

-

-define('ACCOUNT_OK', 0x0000);

-define('ACCOUNT_UNVERIFIED', 0x0001);

-define('ACCOUNT_BLOCKED', 0x0002);

-define('ACCOUNT_EXPIRED', 0x0004);

-define('ACCOUNT_REMOVED', 0x0008);

-define('ACCOUNT_PENDING', 0x0010);

-

-/**

- * Account roles

- */

-

-define('ACCOUNT_ROLE_SYSTEM', 0x0002);

-define('ACCOUNT_ROLE_DEVELOPER', 0x0004);

-define('ACCOUNT_ROLE_ADMIN', 0x1000);

-

-/**

- * Item visibility

- */

-

-define('ITEM_VISIBLE', 0x0000);

-define('ITEM_HIDDEN', 0x0001);

-define('ITEM_BLOCKED', 0x0002);

-define('ITEM_MODERATED', 0x0004);

-define('ITEM_SPAM', 0x0008);

-define('ITEM_DELETED', 0x0010);

-define('ITEM_UNPUBLISHED', 0x0020);

-define('ITEM_WEBPAGE', 0x0040);    // is a static web page, not a conversational item

-define('ITEM_DELAYED_PUBLISH', 0x0080);

-define('ITEM_BUILDBLOCK', 0x0100);    // Named thusly to make sure nobody confuses this with ITEM_BLOCKED

-define('ITEM_PDL', 0x0200);    // Page Description Language - e.g. Comanche

-define('ITEM_BUG', 0x0400);    // Is a bug, can be used by the internal bug tracker

-define('ITEM_PENDING_REMOVE', 0x0800);   // deleted, notification period has lapsed

-define('ITEM_DOC', 0x1000);   // hubzilla only, define here so that item import does the right thing

-define('ITEM_CARD', 0x2000);

-define('ITEM_ARTICLE', 0x4000);

-

-

-define('ITEM_TYPE_POST', 0);

-define('ITEM_TYPE_BLOCK', 1);

-define('ITEM_TYPE_PDL', 2);

-define('ITEM_TYPE_WEBPAGE', 3);

-define('ITEM_TYPE_BUG', 4);

-define('ITEM_TYPE_DOC', 5);

-define('ITEM_TYPE_CARD', 6);

-define('ITEM_TYPE_ARTICLE', 7);

-//OSADA ITEM_TYPE_MAIL = 8

-define('ITEM_TYPE_CUSTOM', 9);

-

-define('ITEM_IS_STICKY', 1000);

-

-

-define('DBTYPE_MYSQL', 0);

-define('DBTYPE_POSTGRES', 1);

-

-

-function sys_boot() {

-

-

-	// our central App object

-

-	App::init();

-

-	/*

-	 * Load the configuration file which contains our DB credentials.

-	 * Ignore errors. If the file doesn't exist or is empty, we are running in

-	 * installation mode.

-	 */

-

-	// miniApp is a conversion object from old style .htconfig.php files

-

-	$a = new miniApp;

-

-

-	App::$install = ((file_exists('.htconfig.php') && filesize('.htconfig.php')) ? false : true);

-

-	@include('.htconfig.php');

-

-	// allow somebody to set some initial settings just in case they can't

-	// install without special fiddling

-

-	if (App::$install && file_exists('.htpreconfig.php'))

-		@include('.htpreconfig.php');

-

-	if (array_key_exists('default_timezone', get_defined_vars())) {

-		App::$config['system']['timezone'] = $default_timezone;

-	}

-

-	$a->convert();

-

-	App::$config['system']['server_role'] = 'pro';

-

-	App::$timezone = ((App::$config['system']['timezone']) ? App::$config['system']['timezone'] : 'UTC');

-	date_default_timezone_set(App::$timezone);

-

-

-	if (!defined('DEFAULT_PLATFORM_ICON')) {

-		define('DEFAULT_PLATFORM_ICON', '/images/hz-32.png');

-	}

-

-	if (!defined('DEFAULT_NOTIFY_ICON')) {

-		define('DEFAULT_NOTIFY_ICON', '/images/hz-white-64.png');

-	}

-

-	App::head_set_icon(DEFAULT_PLATFORM_ICON);

-

-	/*

-	 * Try to open the database;

-	 */

-

-	require_once('include/dba/dba_driver.php');

-

-	if (!App::$install) {

-

-		if (empty($db_charset)) {

-			$db_charset = ((intval($db_type) === 0) ? 'utf8mb4' : 'UTF8');

-		}

-

-		DBA::dba_factory($db_host, $db_port, $db_user, $db_pass, $db_data, $db_type, $db_charset, App::$install);

-		if (!DBA::$dba->connected) {

-			system_unavailable();

-		}

-

-		unset($db_host, $db_port, $db_user, $db_pass, $db_data, $db_type, $db_charset);

-

-		/*

-		 * Load configs from db. Overwrite configs from .htconfig.php

-		 */

-

-		load_config('system');

-		load_config('feature');

-

-		App::$session = new Zotlabs\Web\Session();

-		App::$session->init();

-		load_hooks();

-		/**

-		 * @hooks init_1

-		 */

-		call_hooks('init_1');

-	}

-}

-

-

-function startup() {

-	error_reporting(E_ALL & ~E_WARNING & ~E_NOTICE & ~E_DEPRECATED);

-

-	// Some hosting providers block/disable this

-	@set_time_limit(0);

-

-	if (function_exists('ini_set')) {

-		// This has to be quite large to deal with embedded private photos

-		//@ini_set('pcre.backtrack_limit', 500000);

-

-		// Use cookies to store the session ID on the client side

-		@ini_set('session.use_only_cookies', 1);

-

-		// Disable transparent Session ID support

-		@ini_set('session.use_trans_sid', 0);

-	}

-}

-

-

-/**

- * class miniApp

- *

- * this is a transient structure which is needed to convert the $a->config settings

- * from older (existing) htconfig files which used a global App ($a) into the updated App structure

- * which is now static (although currently constructed at startup). We are only converting

- * 'system' config settings.

- */

-class miniApp {

-	public $config = ['system' => []];

-

-	public function convert() {

-		if ($this->config['system']) {

-			foreach ($this->config['system'] as $k => $v)

-				App::$config['system'][$k] = $v;

-		}

-	}

-}

-

-

-/**

- * class: App

- *

- * @brief Our main application structure for the life of this page.

- *

- * Primarily deals with the URL that got us here

- * and tries to make some sense of it, and

- * stores our page contents and config storage

- * and anything else that might need to be passed around

- * before we spit the page out.

- *

- */

-class App {

-

-	public static $install = false;           // true if we are installing the software

-	public static $account = null;            // account record of the logged-in account

-	public static $channel = null;            // channel record of the current channel of the logged-in account

-	public static $observer = null;            // xchan record of the page observer

-	public static $profile_uid = 0;              // If applicable, the channel_id of the "page owner"

-	public static $poi = null;            // "person of interest", generally a referenced connection

-	private static $oauth_key = null;            // consumer_id of oauth request, if used

-	public static $layout = [];         // Comanche parsed template

-	public static $pdl = null;            // Comanche page description

-	private static $perms = null;            // observer permissions

-	private static $widgets = [];         // widgets for this page

-	public static $config = [];         // config cache

-	public static $override_intltext_templates = [];

-	public static $override_markup_templates = [];

-	public static $override_templateroot = null;

-	public static $override_helproot = null;

-	public static $override_helpfiles = [];

-

-	public static $session = null;

-	public static $groups;

-	public static $language;

-	public static $langsave;

-	public static $rtl = false;

-	public static $plugins_admin;

-	public static $module_loaded = false;

-	public static $query_string;

-	public static $page;

-	public static $profile;

-	public static $user;

-	public static $cid;

-	public static $contact;

-	public static $contacts;

-	public static $content;

-	public static $data = [];

-	public static $error = false;

-	public static $emojitab = false;

-	public static $cmd = '';

-	public static $argv;

-	public static $argc;

-	public static $module;

-	public static $pager;

-	public static $strings;

-	public static $stringsave;   // used in push_lang() and pop_lang()

-	public static $hooks;

-	public static $timezone;

-	public static $interactive = true;

-	public static $plugins;

-	private static $apps = [];

-	public static $identities;

-	public static $css_sources = [];

-	public static $js_sources = [];

-	public static $linkrel = [];

-	public static $theme_info = [];

-	public static $is_sys = false;

-	public static $nav_sel;

-	public static $comanche;

-

-

-	public static $channel_links;

-

-

-	public static $category;

-

-	// Allow themes to control internal parameters

-	// by changing App values in theme.php

-

-	public static $sourcename = '';

-	public static $videowidth = 425;

-	public static $videoheight = 350;

-	public static $force_max_items = 0;

-	public static $theme_thread_allow = true;

-

-	/**

-	 * @brief An array for all theme-controllable parameters

-	 *

-	 * Mostly unimplemented yet. Only options 'template_engine' and

-	 * beyond are used.

-	 */

-	private static $theme = [

-		'sourcename'      => '',

-		'videowidth'      => 425,

-		'videoheight'     => 350,

-		'force_max_items' => 0,

-		'thread_allow'    => true,

-		'stylesheet'      => '',

-		'template_engine' => 'smarty3',

-	];

-

-	/**

-	 * @brief An array of registered template engines ('name'=>'class name')

-	 */

-	public static $template_engines = [];

-	/**

-	 * @brief An array of instanced template engines ('name'=>'instance')

-	 */

-	public static $template_engine_instance = [];

-

-	private static $ldelim = [

-		'internal' => '',

-		'smarty3'  => '{{'

-	];

-	private static $rdelim = [

-		'internal' => '',

-		'smarty3'  => '}}'

-	];

-

-	// These represent the URL which was used to access the page

-

-	private static $scheme;

-	private static $hostname;

-	private static $path;

-

-	// This is our standardised URL - regardless of what was used

-	// to access the page

-

-	private static $baseurl;

-

-	public static $meta;

-

-	/**

-	 * App constructor.

-	 */

-	public static function init() {

-		// we'll reset this after we read our config file

-		date_default_timezone_set('UTC');

-

-		self::$config = ['system' => []];

-		self::$page   = [];

-		self::$pager  = [];

-

-		self::$query_string = '';

-

-

-		startup();

-

-		set_include_path(

-			'include' . PATH_SEPARATOR

-			. 'library' . PATH_SEPARATOR

-			. 'library/langdet' . PATH_SEPARATOR

-			. '.');

-

-		self::$scheme = 'http';

-		if (x($_SERVER, 'HTTPS') && $_SERVER['HTTPS'])

-			self::$scheme = 'https';

-		elseif (x($_SERVER, 'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))

-			self::$scheme = 'https';

-

-		if (x($_SERVER, 'SERVER_NAME')) {

-			self::$hostname = punify($_SERVER['SERVER_NAME']);

-

-			if (x($_SERVER, 'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)

-				self::$hostname .= ':' . $_SERVER['SERVER_PORT'];

-

-			/*

-			 * Figure out if we are running at the top of a domain

-			 * or in a sub-directory and adjust accordingly

-			 */

-			$path = trim(dirname($_SERVER['SCRIPT_NAME']), '/\\');

-			if (isset($path) && strlen($path) && ($path != self::$path))

-				self::$path = $path;

-		}

-

-		if ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 2) === "q=") {

-			self::$query_string = str_replace(['<', '>'], ['&lt;', '&gt;'], substr($_SERVER['QUERY_STRING'], 2));

-

-			// removing trailing / - maybe a nginx problem

-			if (substr(self::$query_string, 0, 1) == "/")

-				self::$query_string = substr(self::$query_string, 1);

-

-      // trim trailing '&' if no extra args are present

-      self::$query_string = rtrim(self::$query_string, '&');

-

-			// change the first & to ?

-			self::$query_string = preg_replace('/&/', '?', self::$query_string, 1);

-		}

-

-		if (x($_GET, 'q'))

-			self::$cmd = escape_tags(trim($_GET['q'], '/\\'));

-

-		// Serve raw files from the file system in certain cases.

-		$filext = pathinfo(self::$cmd, PATHINFO_EXTENSION);

-

-		$serve_rawfiles = [

-			'jpg'   => 'image/jpeg',

-			'jpeg'  => 'image/jpeg',

-			'gif'   => 'image/gif',

-			'png'   => 'image/png',

-			'webp'  => 'image/webp',

-			'ico'   => 'image/vnd.microsoft.icon',

-			'css'   => 'text/css',

-			'js'    => 'text/javascript',

-			'htm'   => 'text/html',

-			'html'  => 'text/html',

-			'map'   => 'application/octet-stream',

-			'ttf'   => 'font/ttf',

-			'woff'  => 'font/woff',

-			'woff2' => 'font/woff2',

-			'svg'   => 'image/svg+xml'

-		];

-

-		if (array_key_exists($filext, $serve_rawfiles) && file_exists(self::$cmd)) {

-			$staticfilecwd      = getcwd();

-			$staticfilerealpath = realpath(self::$cmd);

-			if (strpos($staticfilerealpath, $staticfilecwd) !== 0) {

-				http_status_exit(404, 'not found');

-			}

-

-			$staticfileetag = '"' . md5($staticfilerealpath . filemtime(self::$cmd)) . '"';

-			header("ETag: " . $staticfileetag);

-			header("Cache-control: max-age=2592000");

-			if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) {

-				// If HTTP_IF_NONE_MATCH is same as the generated ETag => content is the same as browser cache

-				// So send a 304 Not Modified response header and exit

-				if ($_SERVER['HTTP_IF_NONE_MATCH'] == $staticfileetag) {

-					http_status_exit(304, 'not modified');

-				}

-			}

-			header("Content-type: " . $serve_rawfiles[$filext]);

-			$handle = fopen(self::$cmd, "rb");

-			fpassthru($handle);

-			fclose($handle);

-			killme();

-		}

-

-		// unix style "homedir"

-

-		if ((substr(self::$cmd, 0, 1) === '~') || (substr(self::$cmd, 0, 1) === '@'))

-			self::$cmd = 'channel/' . substr(self::$cmd, 1);

-

-		/*

-		 * Break the URL path into C style argc/argv style arguments for our

-		 * modules. Given "http://example.com/module/arg1/arg2", self::$argc

-		 * will be 3 (integer) and self::$argv will contain:

-		 *   [0] => 'module'

-		 *   [1] => 'arg1'

-		 *   [2] => 'arg2'

-		 *

-		 * There will always be one argument. If provided a naked domain

-		 * URL, self::$argv[0] is set to "home".

-		 *

-		 * If $argv[0] has a period in it, for example foo.json; rewrite

-		 * to module = 'foo' and set $_REQUEST['module_format'] = 'json';

-		 */

-

-		self::$argv = explode('/', self::$cmd);

-

-		self::$argc = count(self::$argv);

-		if ((array_key_exists('0', self::$argv)) && strlen(self::$argv[0])) {

-			if (strpos(self::$argv[0], '.')) {

-				$_REQUEST['module_format'] = substr(self::$argv[0], strpos(self::$argv[0], '.') + 1);

-				self::$argv[0]             = substr(self::$argv[0], 0, strpos(self::$argv[0], '.'));

-			}

-

-			self::$module = str_replace(".", "_", self::$argv[0]);

-			self::$module = str_replace("-", "_", self::$module);

-			if (strpos(self::$module, '_') === 0)

-				self::$module = substr(self::$module, 1);

-		}

-		else {

-			self::$argc   = 1;

-			self::$argv   = ['home'];

-			self::$module = 'home';

-		}

-

-

-		/*

-		 * See if there is any page number information, and initialise

-		 * pagination

-		 */

-

-		self::$pager['page']      = ((x($_GET, 'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);

-		self::$pager['itemspage'] = 60;

-		self::$pager['start']     = (self::$pager['page'] * self::$pager['itemspage']) - self::$pager['itemspage'];

-		if (self::$pager['start'] < 0)

-			self::$pager['start'] = 0;

-		self::$pager['total'] = 0;

-

-		/*

-		 * register template engines

-		 */

-

-		self::$meta = new Zotlabs\Web\HttpMeta();

-

-		// create an instance of the smarty template engine so we can register it.

-

-		$smarty = new Zotlabs\Render\SmartyTemplate();

-		/// @todo validate if this is still the desired behavior

-		self::register_template_engine(get_class($smarty));

-

-	}

-

-	public static function get_baseurl($ssl = false) {

-		if (is_array(self::$config)

-			&& array_key_exists('system', self::$config)

-			&& is_array(self::$config['system'])

-			&& array_key_exists('baseurl', self::$config['system'])

-			&& strlen(self::$config['system']['baseurl'])) {

-			// get_baseurl() is a heavily used function.

-			// Do not use punify() here until we find a library that performs better than what we have now.

-			//$url = punify(self::$config['system']['baseurl']);

-			$url = self::$config['system']['baseurl'];

-			$url = trim($url, '\\/');

-			return $url;

-		}

-

-		$scheme = self::$scheme;

-

-		self::$baseurl = $scheme . "://" . punify(self::$hostname) . ((isset(self::$path) && strlen(self::$path)) ? '/' . self::$path : '');

-

-		return self::$baseurl;

-	}

-

-	public static function set_baseurl($url) {

-		if (is_array(self::$config)

-			&& array_key_exists('system', self::$config)

-			&& is_array(self::$config['system'])

-			&& array_key_exists('baseurl', self::$config['system'])

-			&& strlen(self::$config['system']['baseurl'])) {

-			$url = punify(self::$config['system']['baseurl']);

-			$url = trim($url, '\\/');

-		}

-

-		$parsed = @parse_url($url);

-

-		self::$baseurl = $url;

-

-		if ($parsed !== false) {

-			self::$scheme = $parsed['scheme'];

-

-			self::$hostname = punify($parsed['host']);

-			if (x($parsed, 'port'))

-				self::$hostname .= ':' . $parsed['port'];

-			if (x($parsed, 'path'))

-				self::$path = trim($parsed['path'], '\\/');

-		}

-	}

-

-	public static function get_scheme() {

-		return self::$scheme;

-	}

-

-	public static function get_hostname() {

-		return self::$hostname;

-	}

-

-	public static function set_hostname($h) {

-		self::$hostname = $h;

-	}

-

-	public static function set_path($p) {

-		self::$path = trim(trim($p), '/');

-	}

-

-	public static function get_path() {

-		return self::$path;

-	}

-

-	public static function get_channel_links() {

-		$s = '';

-		$x = self::$channel_links;

-		if ($x && is_array($x) && count($x)) {

-			foreach ($x as $y) {

-				if ($s) {

-					$s .= ',';

-				}

-				$s .= '<' . $y['url'] . '>; rel="' . $y['rel'] . '"; type="' . $y['type'] . '"';

-			}

-		}

-		return $s;

-	}

-

-	public static function set_account($acct) {

-		self::$account = $acct;

-	}

-

-	public static function get_account() {

-		return self::$account;

-	}

-

-	public static function set_channel($channel) {

-		self::$channel = $channel;

-	}

-

-	public static function get_channel() {

-		return self::$channel;

-	}

-

-	public static function set_observer($xchan) {

-		self::$observer = $xchan;

-	}

-

-	public static function get_observer() {

-		return self::$observer;

-	}

-

-	public static function set_perms($perms) {

-		self::$perms = $perms;

-	}

-

-	public static function get_perms() {

-		return self::$perms;

-	}

-

-	public static function set_oauth_key($consumer_id) {

-		self::$oauth_key = $consumer_id;

-	}

-

-	public static function get_oauth_key() {

-		return self::$oauth_key;

-	}

-

-	public static function get_apps() {

-		return self::$apps;

-	}

-

-	public static function set_apps($arr) {

-		self::$apps = $arr;

-	}

-

-	public static function set_groups($g) {

-		self::$groups = $g;

-	}

-

-	public static function get_groups() {

-		return self::$groups;

-	}

-

-	public static function set_pager_total($n) {

-		self::$pager['total'] = intval($n);

-	}

-

-	public static function set_pager_itemspage($n) {

-		self::$pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);

-		self::$pager['start']     = (self::$pager['page'] * self::$pager['itemspage']) - self::$pager['itemspage'];

-	}

-

-	public static function build_pagehead() {

-

-		$user_scalable = ((local_channel()) ? get_pconfig(local_channel(), 'system', 'user_scalable') : 0);

-		if ($user_scalable === false)

-			$user_scalable = 0;

-

-		$preload_images = ((local_channel()) ? get_pconfig(local_channel(), 'system', 'preload_images') : 0);

-		if ($preload_images === false)

-			$preload_images = 0;

-

-		$interval = ((local_channel()) ? get_pconfig(local_channel(), 'system', 'update_interval') : 80000);

-		if ($interval < 10000)

-			$interval = 80000;

-

-		$theme_color = ((local_channel()) ? get_pconfig(local_channel(), 'redbasic', 'nav_bg') : App::$theme_info['theme_color']);

-		if (!$theme_color) {

-			$theme_color = App::$theme_info['theme_color'];

-		}

-

-		if (!isset(self::$page['title']) && isset(self::$config['system']['sitename']))

-			self::$page['title'] = self::$config['system']['sitename'];

-

-		if (isset(self::$page['title']))

-			$pagemeta = ['og:title' => self::$page['title']];

-

-		call_hooks('page_meta', $pagemeta);

-

-		if ($pagemeta) {

-			foreach ($pagemeta as $metaproperty => $metavalue) {

-				self::$meta->set($metaproperty, $metavalue);

-			}

-		}

-

-

-		// webmanifest

-		head_add_link(['rel' => 'manifest', 'href' => '/manifest.json']);

-		self::$meta->set('application-name', Zotlabs\Lib\System::get_platform_name());

-

-		self::$meta->set('generator', Zotlabs\Lib\System::get_platform_name());

-		self::$meta->set('theme-color', $theme_color);

-

-		head_add_link(['rel' => 'shortcut icon', 'href' => head_get_icon()]);

-		head_add_link(['rel' => 'apple-touch-icon', 'href' => '/images/app/hz-192.png']);

-

-

-		$x = ['header' => ''];

-		/**

-		 * @hooks build_pagehead

-		 *   Called when creating the HTML page header.

-		 *   * \e string \b header - Return the HTML header which should be added

-		 */

-		call_hooks('build_pagehead', $x);

-

-		/* put the head template at the beginning of page['htmlhead']

-		 * since the code added by the modules frequently depends on it

-		 * being first

-		 */

-

-		self::$page['htmlhead'] = replace_macros(get_markup_template('head.tpl'),

-				[

-					'$preload_images'  => $preload_images,

-					'$user_scalable'   => $user_scalable,

-					'$query'           => urlencode(self::$query_string),

-					'$baseurl'         => self::get_baseurl(),

-					'$local_channel'   => local_channel(),

-					'$metas'           => self::$meta->get(),

-					'$plugins'         => $x['header'],

-					'$update_interval' => $interval,

-					'$sse_enabled'     => get_config('system', 'sse_enabled', 0),

-					'$head_css'        => head_get_css(),

-					'$head_js'         => head_get_js(),

-					'$linkrel'         => head_get_links(),

-					'$js_strings'      => js_strings(),

-					'$zid'             => get_my_address(),

-					'$channel_id'      => self::$profile['uid'] ?? 0,

-					'$auto_save_draft' => ((isset(self::$profile['uid']) && feature_enabled(self::$profile['uid'], 'auto_save_draft')) ? "true" : "false"),

-					'$module'          => App::$module

-				]

-			) . ((isset(self::$page['htmlhead'])) ? self::$page['htmlhead'] : '');

-

-		// always put main.js at the end

-		self::$page['htmlhead'] .= head_get_main_js();

-	}

-

-	/**

-	 * @brief Register template engine class.

-	 *

-	 * If $name is "", is used class static property $class::$name.

-	 *

-	 * @param string $class

-	 * @param string $name

-	 */

-	public static function register_template_engine($class, $name = '') {

-		if (!$name) {

-			$v = get_class_vars($class);

-			if (x($v, "name")) {

-				$name = $v['name'];

-			}

-		}

-		if (!$name) {

-			echo "template engine <tt>$class</tt> cannot be registered without a name.\n";

-			killme();

-		}

-		self::$template_engines[$name] = $class;

-	}

-

-	/**

-	 * @brief Return template engine instance.

-	 *

-	 * If $name is not defined, return engine defined by theme, or default.

-	 *

-	 * @param string $name Template engine name

-	 *

-	 * @return object Template Engine instance

-	 */

-	public static function template_engine($name = '') {

-		if ($name !== '') {

-			$template_engine = $name;

-		}

-		else {

-			$template_engine = 'smarty3';

-			if (x(self::$theme, 'template_engine')) {

-				$template_engine = self::$theme['template_engine'];

-			}

-		}

-

-		if (isset(self::$template_engines[$template_engine])) {

-			if (isset(self::$template_engine_instance[$template_engine])) {

-				return self::$template_engine_instance[$template_engine];

-			}

-			else {

-				$class                                            = self::$template_engines[$template_engine];

-				$obj                                              = new $class;

-				self::$template_engine_instance[$template_engine] = $obj;

-				return $obj;

-			}

-		}

-

-		echo "template engine <tt>$template_engine</tt> is not registered!\n";

-		killme();

-	}

-

-	/**

-	 * @brief Returns the active template engine.

-	 *

-	 * @return string

-	 */

-	public static function get_template_engine() {

-		return self::$theme['template_engine'];

-	}

-

-	public static function set_template_engine($engine = 'smarty3') {

-		self::$theme['template_engine'] = $engine;

-	}

-

-	public static function get_template_ldelim($engine = 'smarty3') {

-		return self::$ldelim[$engine];

-	}

-

-	public static function get_template_rdelim($engine = 'smarty3') {

-		return self::$rdelim[$engine];

-	}

-

-	public static function head_set_icon($icon) {

-		self::$data['pageicon'] = $icon;

-	}

-

-	public static function head_get_icon() {

-		$icon = self::$data['pageicon'];

-		if (!strpos($icon, '://'))

-			$icon = z_root() . $icon;

-		return $icon;

-	}

-

-} // End App class

-

-

-/**

- * @brief Multi-purpose function to check variable state.

- *

- * Usage: x($var) or $x($array, 'key')

- *

- * returns false if variable/key is not set

- * if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.

- * e.g. x('') or x(0) returns 0;

- *

- * @param string|array $s variable to check

- * @param string $k key inside the array to check

- *

- * @return bool|int

- */

-function x($s, $k = null) {

-	if ($k != null) {

-		if ((is_array($s)) && (array_key_exists($k, $s))) {

-			if ($s[$k])

-				return (int)1;

-			return (int)0;

-		}

-		return false;

-	}

-	else {

-		if (isset($s)) {

-			if ($s) {

-				return (int)1;

-			}

-			return (int)0;

-		}

-		return false;

-	}

-}

-

-

-/**

- * @brief Called from db initialisation if db is dead.

- *

- * @ref include/system_unavailable.php will handle everything further.

- */

-function system_unavailable() {

-	include('include/system_unavailable.php');

-	system_down();

-	killme();

-}

-

-

-function clean_urls() {

-

-	//	if(App::$config['system']['clean_urls'])

-	return true;

-	//	return false;

-}

-

-function z_path() {

-	$base = z_root();

-	if (!clean_urls())

-		$base .= '/?q=';

-

-	return $base;

-}

-

-/**

- * @brief Returns the baseurl.

- *

- * @return string

- * @see App::get_baseurl()

- *

- */

-function z_root() {

-	return App::get_baseurl();

-}

-

-/**

- * @brief Return absolute URL for given $path.

- *

- * @param string $path

- *

- * @return string

- */

-function absurl($path) {

-	if (strpos($path, '/') === 0)

-		return z_path() . $path;

-

-	return $path;

-}

-

-function os_mkdir($path, $mode = 0777, $recursive = false) {

-	$oldumask = @umask(0);

-	$result   = @mkdir($path, $mode, $recursive);

-	@umask($oldumask);

-	return $result;

-}

-

-

-/**

- * @brief Recursively delete a directory.

- *

- * @param string $path

- * @return boolean

- */

-function rrmdir($path) {

-	if (is_dir($path) === true) {

-		$dir_entries = scandir($path);

-		if (is_array($dir_entries)) {

-			$files = array_diff($dir_entries, ['.', '..']);

-			foreach ($files as $file) {

-				rrmdir(realpath($path) . '/' . $file);

-			}

-		}

-		return rmdir($path);

-	}

-	elseif (is_file($path) === true) {

-		return unlink($path);

-	}

-

-	return false;

-}

-

-

-/**

- * @brief Function to check if request was an AJAX (xmlhttprequest) request.

- *

- * @return boolean

- */

-function is_ajax() {

-	return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');

-}

-

-

-/**

- * Primarily involved with database upgrade, but also sets the

- * base url for use in cmdline programs which don't have

- * $_SERVER variables, and synchronising the state of installed plugins.

- */

-function check_config() {

-

-	$saved = get_config('system', 'urlverify');

-	if (!$saved)

-		set_config('system', 'urlverify', bin2hex(z_root()));

-

-	if (($saved) && ($saved != bin2hex(z_root()))) {

-		// our URL changed. Do something.

-

-		$oldurl = hex2bin($saved);

-		logger('Baseurl changed!');

-

-		$oldhost = substr($oldurl, strpos($oldurl, '//') + 2);

-		$host    = substr(z_root(), strpos(z_root(), '//') + 2);

-

-		$is_ip_addr  = ((preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $host)) ? true : false);

-		$was_ip_addr = ((preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $oldhost)) ? true : false);

-		// only change the url to an ip address if it was already an ip and not a dns name

-		if ((!$is_ip_addr) || ($is_ip_addr && $was_ip_addr)) {

-			fix_system_urls($oldurl, z_root());

-			set_config('system', 'urlverify', bin2hex(z_root()));

-		}

-		else

-			logger('Attempt to change baseurl from a DNS name to an IP address was refused.');

-	}

-

-	// This will actually set the url to the one stored in .htconfig, and ignore what

-	// we're passing - unless we are installing and it has never been set.

-

-	App::set_baseurl(z_root());

-

-	// Make sure each site has a system channel.  This is now created on install

-	// so we just need to keep this around a couple of weeks until the hubs that

-	// already exist have one

-	$syschan_exists = get_sys_channel();

-	if (!$syschan_exists)

-		create_sys_channel();

-

-	new DB_Upgrade(DB_UPDATE_VERSION);

-

-	plugins_sync();

-

-	load_hooks();

-

-	check_for_new_perms();

-

-	check_cron_broken();

-

-}

-

-

-function fix_system_urls($oldurl, $newurl) {

-

-	logger('fix_system_urls: renaming ' . $oldurl . '  to ' . $newurl);

-

-	// Basically a site rename, but this can happen if you change from http to https for instance - even if the site name didn't change

-	// This should fix URL changes on our site, but other sites will end up with orphan hublocs which they will try to contact and will

-	// cause wasted communications.

-	// What we need to do after fixing this up is to send a revocation of the old URL to every other site that we communicate with so

-	// that they can clean up their hubloc tables (this includes directories).

-	// It's a very expensive operation so you don't want to have to do it often or after your site gets to be large.

-

-	$r = q("select xchan.*, hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash where hubloc_url like '%s' and hubloc_network = 'zot6'",

-		dbesc($oldurl . '%')

-	);

-

-	if ($r) {

-		foreach ($r as $rv) {

-			$channel_address = substr($rv['hubloc_addr'], 0, strpos($rv['hubloc_addr'], '@'));

-

-			// get the associated channel. If we don't have a local channel, do nothing for this entry.

-

-			$c = q("select * from channel where channel_hash = '%s' limit 1",

-				dbesc($rv['hubloc_hash'])

-			);

-			if (!$c)

-				continue;

-

-			$parsed = @parse_url($newurl);

-			if (!$parsed)

-				continue;

-			$newhost = $parsed['host'];

-

-			// sometimes parse_url returns unexpected results.

-

-			if (strpos($newhost, '/') !== false)

-				$newhost = substr($newhost, 0, strpos($newhost, '/'));

-

-			$rhs = $newhost . (($parsed['port']) ? ':' . $parsed['port'] : '');

-

-			// paths aren't going to work. You have to be at the (sub)domain root

-			// . (($parsed['path']) ? $parsed['path'] : '');

-

-			// The xchan_url might point to another nomadic identity clone

-

-			$replace_xchan_url = ((strpos($rv['xchan_url'], $oldurl) !== false) ? true : false);

-

-			q("update xchan set xchan_addr = '%s', xchan_url = '%s', xchan_connurl = '%s', xchan_follow = '%s', xchan_connpage = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_date = '%s' where xchan_hash = '%s'",

-				dbesc($channel_address . '@' . $rhs),

-				dbesc(($replace_xchan_url) ? str_replace($oldurl, $newurl, $rv['xchan_url']) : $rv['xchan_url']),

-				dbesc(str_replace($oldurl, $newurl, $rv['xchan_connurl'])),

-				dbesc(str_replace($oldurl, $newurl, $rv['xchan_follow'])),

-				dbesc(str_replace($oldurl, $newurl, $rv['xchan_connpage'])),

-				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_l'])),

-				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_m'])),

-				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_s'])),

-				dbesc(datetime_convert()),

-				dbesc($rv['xchan_hash'])

-			);

-

-			q("update hubloc set hubloc_addr = '%s', hubloc_url = '%s', hubloc_id_url = '%s', hubloc_url_sig = '%s', hubloc_site_id = '%s', hubloc_host = '%s', hubloc_callback = '%s' where hubloc_hash = '%s' and hubloc_url = '%s'",

-				dbesc($channel_address . '@' . $rhs),

-				dbesc($newurl),

-				dbesc(str_replace($oldurl, $newurl, $rv['hubloc_id_url'])),

-				dbesc(Libzot::sign($newurl, $c[0]['channel_prvkey'])),

-				dbesc(Libzot::make_xchan_hash($newurl, Config::Get('system', 'pubkey'))),

-				dbesc($newhost),

-				dbesc($newurl . '/zot'),

-				dbesc($rv['xchan_hash']),

-				dbesc($oldurl)

-			);

-

-			q("update profile set photo = '%s', thumb = '%s' where uid = %d",

-				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_l'])),

-				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_m'])),

-				intval($c[0]['channel_id'])

-			);

-

-			$m = q("select abook_id, abook_instance from abook where abook_instance like '%s' and abook_channel = %d",

-				dbesc('%' . $oldurl . '%'),

-				intval($c[0]['channel_id'])

-			);

-			if ($m) {

-				foreach ($m as $mm) {

-					q("update abook set abook_instance = '%s' where abook_id = %d",

-						dbesc(str_replace($oldurl, $newurl, $mm['abook_instance'])),

-						intval($mm['abook_id'])

-					);

-				}

-			}

-

-			Zotlabs\Daemon\Master::Summon(['Notifier', 'refresh_all', $c[0]['channel_id']]);

-		}

-	}

-

-	// fix links in apps

-

-	$a = q("select id, app_url, app_photo from app where app_url like '%s' OR app_photo like '%s'",

-		dbesc('%' . $oldurl . '%'),

-		dbesc('%' . $oldurl . '%')

-	);

-	if ($a) {

-		foreach ($a as $aa) {

-			q("update app set app_url = '%s', app_photo = '%s' where id = %d",

-				dbesc(str_replace($oldurl, $newurl, $aa['app_url'])),

-				dbesc(str_replace($oldurl, $newurl, $aa['app_photo'])),

-				intval($aa['id'])

-			);

-		}

-	}

-

-	// now replace any remote xchans whose photos are stored locally (which will be most if not all remote xchans)

-

-	$r = q("select * from xchan where xchan_photo_l like '%s'",

-		dbesc($oldurl . '%')

-	);

-

-	if ($r) {

-		foreach ($r as $rv) {

-			q("update xchan set xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s' where xchan_hash = '%s'",

-				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_l'])),

-				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_m'])),

-				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_s'])),

-				dbesc($rv['xchan_hash'])

-			);

-		}

-	}

-}

-

-

-/**

- * @brief Wrapper for adding a login box.

- *

- * If $register == true provide a registration link. This will most always depend

- * on the value of App::$config['system']['register_policy'].

- * Returns the complete html for inserting into the page

- *

- * @param boolean $register (optional) default false

- * @param string $form_id (optional) default \e main-login

- * @param boolean $hiddens (optional) default false

- * @param boolean $login_page (optional) default true

- * @return string Parsed HTML code.

- */

-function login($register = false, $form_id = 'main_login', $hiddens = false, $login_page = true) {

-

-	$o   = '';

-	$reg = null;

-

-	// Here's the current description of how the register link works (2018-05-15)

-

-	// Register links are enabled on the site home page and login page and navbar.

-	// They are not shown by default on other pages which may require login.

-

-	// If the register link is enabled and registration is closed, the request is directed

-	// to /pubsites. If registration is allowed, /register is the default destination

-

-	// system.register_link can over-ride the default behaviour and redirect to an arbitrary

-	// webpage for paid/custom or organisational registrations, regardless of whether

-	// registration is allowed.

-

-	// system.register_link may or may not be the same destination as system.sellpage

-

-	// system.sellpage is the destination linked from the /pubsites page on other sites. If

-	// system.sellpage is not set, the 'register' link in /pubsites will go to 'register' on your

-	// site.

-

-	// If system.register_link is set to the word 'none', no registration link will be shown on

-	// your site.

-

-

-	$register_policy = get_config('system', 'register_policy');

-

-	$reglink = get_config('system', 'register_link', z_root() . '/' . ((intval($register_policy) === REGISTER_CLOSED) ? 'pubsites' : 'register'));

-

-	if ($reglink !== 'none') {

-		$reg = [

-			'title' => t('Create an account to access services and applications'),

-			'desc'  => t('Register'),

-			'link'  => $reglink

-		];

-	}

-

-	$dest_url = z_root() . '/' . App::$query_string;

-

-	if (local_channel()) {

-		$tpl = get_markup_template("logout.tpl");

-	}

-	else {

-		$tpl = get_markup_template("login.tpl");

-		if (strlen(App::$query_string))

-			$_SESSION['login_return_url'] = App::$query_string;

-	}

-

-	$email_required = get_config('system', 'verify_email');

-	$lname_label    = (($email_required) ? t('Email or nickname') : t('Nickname'));

-

-	$o .= replace_macros($tpl, [

-		'$dest_url'     => $dest_url,

-		'$login_page'   => $login_page,

-		'$logout'       => t('Logout'),

-		'$login'        => t('Login'),

-		'$remote_login' => t('Remote Authentication'),

-		'$form_id'      => $form_id,

-		'$lname'        => [$form_id . '_username', $lname_label],

-		'$lpassword'    => [$form_id . '_password', t('Password')],

-		'$remember_me'  => [$form_id . '_remember', t('Remember me'), '', '', [t('No'), t('Yes')]],

-		'$hiddens'      => $hiddens,

-		'$register'     => $reg,

-		'$lostpass'     => t('Forgot your password?'),

-		'$lostlink'     => (($email_required) ? t('Password Reset') : ''),

-	]);

-

-	/**

-	 * @hooks login_hook

-	 *   Called when generating the login form.

-	 *   * \e string with parsed HTML

-	 */

-	call_hooks('login_hook', $o);

-

-	return $o;

-}

-

-

-/**

- * @brief Used to end the current process, after saving session state.

- */

-function killme() {

-

-	register_shutdown_function('shutdown');

-	exit;

-}

-

-/**

- * @brief Redirect to another URL and terminate this process.

- */

-function goaway($s) {

-	header("Location: $s");

-	killme();

-}

-

-function shutdown() {

-

-}

-

-/**

- * @brief Returns the entity id of locally logged in account or false.

- *

- * Returns numeric account_id if authenticated or 0. It is possible to be

- * authenticated and not connected to a channel.

- *

- * @return int|bool account_id or false

- */

-function get_account_id() {

-

-	if (isset($_SESSION['account_id']))

-		return intval($_SESSION['account_id']);

-

-	if (App::$account)

-		return intval(App::$account['account_id']);

-

-	return false;

-}

-

-/**

- * @brief Returns the entity id (channel_id) of locally logged in channel or false.

- *

- * Returns authenticated numeric channel_id if authenticated and connected to

- * a channel or 0. Sometimes referred to as $uid in the code.

- *

- * Before 2.1 this function was called local_user().

- *

- * @return int|bool channel_id or false

- * @since 2.1

- */

-function local_channel() {

-	if (session_id()

-		&& array_key_exists('authenticated', $_SESSION) && $_SESSION['authenticated']

-		&& array_key_exists('uid', $_SESSION) && intval($_SESSION['uid']))

-		return intval($_SESSION['uid']);

-

-	return false;

-}

-

-/**

- * @brief Returns a xchan_hash (visitor_id) of remote authenticated visitor

- * or false.

- *

- * Returns authenticated string hash of Red global identifier (xchan_hash), if

- * authenticated via remote auth, or an empty string.

- *

- * Before 2.1 this function was called remote_user().

- *

- * @return string|bool visitor_id or false

- * @since 2.1

- */

-function remote_channel() {

-	if (session_id()

-		&& array_key_exists('authenticated', $_SESSION) && $_SESSION['authenticated']

-		&& array_key_exists('visitor_id', $_SESSION) && $_SESSION['visitor_id'])

-		return $_SESSION['visitor_id'];

-

-	return false;

-}

-

-

-function can_view_public_stream() {

-

-	if (observer_prohibited(true)) {

-		return false;

-	}

-

-	if (!(intval(get_config('system', 'open_pubstream', 1)))) {

-		if (!get_observer_hash()) {

-			return false;

-		}

-	}

-

-	$net_firehose  = ((get_config('system', 'disable_discover_tab', 1)) ? false : true);

-

-	if (!$net_firehose) {

-		return false;

-	}

-

-	return true;

-

-}

-

-

-/**

- * @brief Show an error or alert text on next page load.

- *

- * Contents of $s are displayed prominently on the page the next time

- * a page is loaded. Usually used for errors or alerts.

- *

- * For informational text use info().

- *

- * @param string $s Text to display

- */

-function notice($s) {

-

-	/*

-		if(! session_id())

-			return;

-

-		if(! x($_SESSION, 'sysmsg')) $_SESSION['sysmsg'] = array();

-

-		// ignore duplicated error messages which haven't yet been displayed

-		// - typically seen as multiple 'permission denied' messages

-		// as a result of auto-reloading a protected page with &JS=1

-

-		if(in_array($s, $_SESSION['sysmsg']))

-			return;

-

-		if(App::$interactive) {

-			$_SESSION['sysmsg'][] = $s;

-		}

-	*/

-

-	$hash   = get_observer_hash();

-	$sse_id = false;

-

-	if (!$hash) {

-		if (session_id()) {

-			$sse_id = true;

-			$hash   = 'sse_id.' . session_id();

-		}

-		else {

-			return;

-		}

-	}

-

-	$t = get_xconfig($hash, 'sse', 'timestamp', NULL_DATE);

-

-	if (datetime_convert('UTC', 'UTC', $t) < datetime_convert('UTC', 'UTC', '- 30 seconds')) {

-		set_xconfig($hash, 'sse', 'notifications', []);

-	}

-

-	$x = get_xconfig($hash, 'sse', 'notifications');

-

-	if ($x === false)

-		$x = [];

-

-	if (isset($x['notice']) && in_array($s, $x['notice']['notifications']))

-		return;

-

-	if (App::$interactive) {

-		$x['notice']['notifications'][] = $s;

-		set_xconfig($hash, 'sse', 'notifications', $x);

-	}

-

-}

-

-/**

- * @brief Show an information text on next page load.

- *

- * Contents of $s are displayed prominently on the page the next time a page is

- * loaded. Usually used for information.

- *

- * For error and alerts use notice().

- *

- * @param string $s Text to display

- */

-function info($s) {

-

-	/*

-		if(! session_id())

-			return;

-

-		if(! x($_SESSION, 'sysmsg_info'))

-			$_SESSION['sysmsg_info'] = array();

-

-		if(in_array($s, $_SESSION['sysmsg_info']))

-			return;

-

-		if(App::$interactive)

-			$_SESSION['sysmsg_info'][] = $s;

-	*/

-

-	$hash   = get_observer_hash();

-	$sse_id = false;

-

-	if (!$hash) {

-		if (session_id()) {

-			$sse_id = true;

-			$hash   = 'sse_id.' . session_id();

-		}

-		else {

-			return;

-		}

-	}

-

-	$t = get_xconfig($hash, 'sse', 'timestamp', NULL_DATE);

-

-	if (datetime_convert('UTC', 'UTC', $t) < datetime_convert('UTC', 'UTC', '- 30 seconds')) {

-		set_xconfig($hash, 'sse', 'notifications', []);

-	}

-

-	$x = get_xconfig($hash, 'sse', 'notifications');

-

-	if ($x === false)

-		$x = [];

-

-	if (isset($x['info']) && in_array($s, $x['info']['notifications']))

-		return;

-

-	if (App::$interactive) {

-		$x['info']['notifications'][] = $s;

-		set_xconfig($hash, 'sse', 'notifications', $x);

-	}

-

-}

-

-/**

- * @brief Wrapper around config to limit the text length of an incoming message.

- *

- * @return int

- */

-function get_max_import_size() {

-	return (intval(get_config('system', 'max_import_size')));

-}

-

-

-/**

- * @brief Wrap calls to proc_close(proc_open()) and call hook

- * so plugins can take part in process :)

- *

- * args:

- * $cmd program to run

- *  next args are passed as $cmd command line

- *

- * e.g.:

- * @code{.php}proc_run("ls", "-la", "/tmp");@endcode

- *

- * $cmd and string args are surrounded with ""

- */

-function proc_run() {

-

-	$args = func_get_args();

-

-	if (!count($args))

-		return;

-

-	$args = flatten_array_recursive($args);

-

-	$arr = [

-		'args'    => $args,

-		'run_cmd' => true

-	];

-	/**

-	 * @hooks proc_run

-	 *   Called when invoking PHP sub processes.

-	 *   * \e array \b args

-	 *   * \e boolean \b run_cmd

-	 */

-	call_hooks('proc_run', $arr);

-

-	if (!$arr['run_cmd'])

-		return;

-

-	if (count($args) && $args[0] === 'php') {

-		$args[0] = ((x(App::$config, 'system')) && (x(App::$config['system'], 'php_path')) && (strlen(App::$config['system']['php_path'])) ? App::$config['system']['php_path'] : 'php');

-	}

-

-	$args    = array_map('escapeshellarg', $args);

-	$cmdline = implode(' ', $args);

-

-	if (is_windows()) {

-		$cwd = getcwd();

-		$cmd = "cmd /c start \"title\" /D \"$cwd\" /b $cmdline";

-		proc_close(proc_open($cmd, [], $foo));

-	}

-	else {

-		if (get_config('system', 'use_proc_open'))

-			proc_close(proc_open($cmdline . " &", [], $foo));

-		else

-			exec($cmdline . ' > /dev/null &');

-	}

-}

-

-/**

- * @brief Checks if we are running on M$ Windows.

- *

- * @return bool true if we run on M$ Windows

- *

- * It's possible you might be able to run on WAMP or XAMPP, and this

- * has been accomplished, but is not officially supported. Good luck.

- *

- */

-function is_windows() {

-	return ((strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') ? true : false);

-}

-

-/**

- * @brief Check if current user has admin role.

- *

- * Check if the current user has ACCOUNT_ROLE_ADMIN.

- *

- * @return bool true if user is an admin

- */

-function is_site_admin() {

-

-	if (!session_id())

-		return false;

-

-	if (isset($_SESSION['delegate']))

-		return false;

-

-	if (isset($_SESSION['authenticated']) && is_array(App::$account) && (App::$account['account_roles'] & ACCOUNT_ROLE_ADMIN))

-		return true;

-

-	return false;

-}

-

-/**

- * @brief Check if current user has developer role.

- *

- * Check if the current user has ACCOUNT_ROLE_DEVELOPER.

- *

- * @return bool true if user is a developer

- */

-function is_developer() {

-

-	if (!session_id())

-		return false;

-

-	if ((intval($_SESSION['authenticated']))

-		&& (is_array(App::$account))

-		&& (App::$account['account_roles'] & ACCOUNT_ROLE_DEVELOPER))

-		return true;

-

-	return false;

-}

-

-

-function load_contact_links($uid) {

-

-	$ret = [];

-

-	if (!$uid || x(App::$contacts, 'empty'))

-		return;

-

-//	logger('load_contact_links');

-

-	$r = q("SELECT abook_id, abook_flags, abook_my_perms, abook_their_perms, abook_self, xchan_hash, xchan_photo_m, xchan_name, xchan_url, xchan_network from abook left join xchan on abook_xchan = xchan_hash where abook_channel = %d and xchan_deleted = 0",

-		intval($uid)

-	);

-	if ($r) {

-		foreach ($r as $rv) {

-			$ret[$rv['xchan_hash']] = $rv;

-		}

-	}

-	else

-		$ret['empty'] = true;

-

-	App::$contacts = $ret;

-}

-

-

-/**

- * @brief Returns querystring as string from a mapped array.

- *

- * @param array $params mapped array with query parameters

- * @param string $name of parameter, default null

- *

- * @return string

- */

-function build_querystring($params, $name = null) {

-	$ret = '';

-	foreach ($params as $key => $val) {

-		if (is_array($val)) {

-			if ($name === null) {

-				$ret .= build_querystring($val, $key);

-			}

-			else {

-				$ret .= build_querystring($val, $name . "[$key]");

-			}

-		}

-		else {

-			$val = urlencode($val);

-			if ($name != null) {

-				$ret .= $name . "[$key]" . "=$val&";

-			}

-			else {

-				$ret .= "$key=$val&";

-			}

-		}

-	}

-

-	return $ret;

-}

-

-

-/**

- * @brief Much better way of dealing with c-style args.

- */

-function argc() {

-	return App::$argc;

-}

-

-function argv($x) {

-	if (array_key_exists($x, App::$argv))

-		return App::$argv[$x];

-

-	return '';

-}

-

-function dba_timer() {

-	return microtime(true);

-}

-

-/**

- * @brief Returns xchan_hash from the observer.

- *

- * Observer can be a local or remote channel.

- *

- * @return string xchan_hash from observer, otherwise empty string if no observer

- */

-function get_observer_hash() {

-	$observer = App::get_observer();

-	if (is_array($observer))

-		return $observer['xchan_hash'];

-

-	return '';

-}

-

-/**

- * @brief Returns the complete URL of the current page, e.g.: http(s)://something.com/network

- *

- * Taken from http://webcheatsheet.com/php/get_current_page_url.php

- *

- * @return string

- */

-function curPageURL() {

-	$pageURL = 'http';

-	if ($_SERVER["HTTPS"] == "on") {

-		$pageURL .= "s";

-	}

-	$pageURL .= "://";

-	if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {

-		$pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];

-	}

-	else {

-		$pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];

-	}

-

-	return $pageURL;

-}

-

-/**

- * @brief Returns a custom navigation by name???

- *

- * If no $navname provided load default page['nav']

- *

- * @param string $navname

- *

- * @return mixed

- * @todo not fully implemented yet

- *

- */

-function get_custom_nav($navname) {

-	if (!$navname)

-		return App::$page['nav'];

-	// load custom nav menu by name here

-}

-

-/**

- * @brief Loads a page definition file for a module.

- *

- * If there is no parsed Comanche template already load a module's pdl file

- * and parse it with Comanche.

- *

- */

-function load_pdl() {

-

-	App::$comanche = new Zotlabs\Render\Comanche();

-

-	if (!count(App::$layout)) {

-

-		$arr = [

-			'module' => App::$module,

-			'layout' => ''

-		];

-

-		/**

-		 * @hooks load_pdl

-		 *   Called when we load a PDL file or description.

-		 *   * \e string \b module

-		 *   * \e string \b layout

-		 */

-		call_hooks('load_pdl', $arr);

-		$layout = $arr['layout'];

-

-		$n = 'mod_' . App::$module . '.pdl';

-		$u = App::$comanche->get_channel_id();

-		$s = '';

-

-		if ($u) {

-			$s = get_pconfig($u, 'system', $n);

-		}

-

-		if (!$s) {

-			$s = $layout;

-		}

-

-		if ((!$s) && (($p = theme_include($n)) != '')) {

-			$s = @file_get_contents($p);

-		}

-		elseif ((!$s) && file_exists('addon/' . App::$module . '/' . $n)) {

-			$s = @file_get_contents('addon/' . App::$module . '/' . $n);

-		}

-

-		$arr = [

-			'module' => App::$module,

-			'layout' => $s

-		];

-

-		call_hooks('alter_pdl', $arr);

-		$s = $arr['layout'];

-

-		if ($s) {

-			App::$comanche->parse($s);

-			App::$pdl = $s;

-		}

-	}

-}

-

-

-function exec_pdl() {

-	if (App::$pdl) {

-		App::$comanche->parse(App::$pdl, 1);

-	}

-}

-

-

-/**

- * @brief build the page.

- *

- * Build the page - now that we have all the components

- *

- */

-function construct_page() {

-

-	exec_pdl();

-

-	$comanche = ((count(App::$layout)) ? true : false);

-

-	require_once(theme_include('theme_init.php'));

-

-	$installing = false;

-

-	$uid = ((App::$profile_uid) ? App::$profile_uid : local_channel());

-

-	$navbar = get_config('system', 'navbar', 'default');

-	if ($uid) {

-		$navbar = get_pconfig($uid, 'system', 'navbar', $navbar);

-	}

-

-	if ($comanche && isset(App::$layout['navbar'])) {

-		$navbar = App::$layout['navbar'];

-	}

-

-	if (App::$module == 'setup') {

-		$installing = true;

-	}

-	else {

-		nav($navbar);

-	}

-

-

-	$current_theme = Zotlabs\Render\Theme::current();

-	// logger('current_theme: ' . print_r($current_theme,true));

-	// Zotlabs\Render\Theme::debug();

-

-	if (($p = theme_include($current_theme[0] . '.js')) != '')

-		head_add_js('/' . $p);

-

-	if (($p = theme_include('mod_' . App::$module . '.php')) != '')

-		require_once($p);

-

-	require_once('include/js_strings.php');

-

-	if (x(App::$page, 'template_style'))

-		head_add_css(App::$page['template_style'] . '.css');

-	else

-		head_add_css(((x(App::$page, 'template')) ? App::$page['template'] : 'default') . '.css');

-

-	if (($p = theme_include('mod_' . App::$module . '.css')) != '')

-		head_add_css('mod_' . App::$module . '.css');

-

-	head_add_css(Zotlabs\Render\Theme::url($installing));

-

-	if (($p = theme_include('mod_' . App::$module . '.js')) != '')

-		head_add_js('mod_' . App::$module . '.js');

-

-	App::build_pagehead();

-

-	if (isset(App::$page['pdl_content'])) {

-		App::$page['content'] = App::$comanche->region(App::$page['content']);

-	}

-

-	// Let's say we have a comanche declaration '[region=nav][/region][region=content]$nav $content[/region]'.

-	// The text 'region=' identifies a section of the layout by that name. So what we want to do here is leave

-	// App::$page['nav'] empty and put the default content from App::$page['nav'] and App::$page['section']

-	// into a new region called App::$data['content']. It is presumed that the chosen layout file for this comanche page

-	// has a '<content>' element instead of a '<section>'.

-

-	// This way the Comanche layout can include any existing content, alter the layout by adding stuff around it or changing the

-	// layout completely with a new layout definition, or replace/remove existing content.

-

-	if ($comanche) {

-		$arr = [

-			'module' => App::$module,

-			'layout' => App::$layout

-		];

-		/**

-		 * @hooks construct_page

-		 *   General purpose hook to provide content to certain page regions.

-		 *   Called when constructing the Comanche page.

-		 *   * \e string \b module

-		 *   * \e string \b layout

-		 */

-		call_hooks('construct_page', $arr);

-		App::$layout = $arr['layout'];

-

-

-		foreach (App::$layout as $k => $v) {

-			if ((strpos($k, 'region_') === 0) && strlen($v)) {

-				if (strpos($v, '$region_') !== false) {

-					$v = preg_replace_callback('/\$region_([a-zA-Z0-9]+)/ism', [App::$comanche, 'replace_region'], $v);

-				}

-

-				// And a couple of convenience macros

-				if (strpos($v, '$htmlhead') !== false) {

-					$v = str_replace('$htmlhead', App::$page['htmlhead'], $v);

-				}

-				if (strpos($v, '$nav') !== false) {

-					$v = str_replace('$nav', App::$page['nav'], $v);

-				}

-				if (strpos($v, '$content') !== false) {

-					$v = str_replace('$content', App::$page['content'], $v);

-				}

-

-				App::$page[substr($k, 7)] = $v;

-			}

-		}

-	}

-

-	$page    = App::$page;

-

-	// There's some experimental support for right-to-left text in the view/php/default.php page template.

-	// In v1.9 we started providing direction preference in the per language hstrings.php file

-	// This requires somebody with fluency in a RTL language to make happen

-

-	$page['direction'] = 0; // ((App::$rtl) ? 1 : 0);

-

-	header("Content-type: text/html; charset=utf-8");

-

-	// security headers - see https://securityheaders.io

-

-	if (App::get_scheme() === 'https' && isset(App::$config['system']['transport_security_header']) && intval(App::$config['system']['transport_security_header']) == 1)

-		header("Strict-Transport-Security: max-age=31536000");

-

-	if (isset(App::$config['system']['content_security_policy']) && intval(App::$config['system']['content_security_policy']) == 1) {

-		$cspsettings = [

-			'script-src' => ["'self'", "'unsafe-inline'", "'unsafe-eval'"],

-			'style-src'  => ["'self'", "'unsafe-inline'"],

-			'frame-src'  => ["'self'"]

-		];

-		call_hooks('content_security_policy', $cspsettings);

-

-		// Legitimate CSP directives (cxref: https://content-security-policy.com/)

-		$validcspdirectives = [

-			"default-src", "script-src", "style-src",

-			"img-src", "connect-src", "font-src",

-			"object-src", "media-src", 'frame-src',

-			'sandbox', 'report-uri', 'child-src',

-			'form-action', 'frame-ancestors', 'plugin-types'

-		];

-		$cspheader          = "Content-Security-Policy:";

-		foreach ($cspsettings as $cspdirective => $csp) {

-			if (!in_array($cspdirective, $validcspdirectives)) {

-				logger("INVALID CSP DIRECTIVE: " . $cspdirective, LOGGER_DEBUG);

-				continue;

-			}

-			$cspsettingsarray = array_unique($cspsettings[$cspdirective]);

-			$cspsetpolicy     = implode(' ', $cspsettingsarray);

-			if ($cspsetpolicy) {

-				$cspheader .= " " . $cspdirective . " " . $cspsetpolicy . ";";

-			}

-		}

-		header($cspheader);

-	}

-

-	if (isset(App::$config['system']['x_security_headers'])) {

-		header("X-Frame-Options: SAMEORIGIN");

-		header("X-Xss-Protection: 1; mode=block;");

-		header("X-Content-Type-Options: nosniff");

-	}

-

-	if (isset(App::$config['system']['perm_policy_header']) && App::$config['system']['perm_policy_header']) {

-		header("Permissions-Policy: " . App::$config['system']['perm_policy_header']);

-	}

-	else {

-		// opt-out this site from federated browser surveillance

-		header("Permissions-Policy: interest-cohort=()");

-	}

-

-	if (isset(App::$config['system']['public_key_pins'])) {

-		header("Public-Key-Pins: " . App::$config['system']['public_key_pins']);

-	}

-

-	require_once(theme_include(

-		((x(App::$page, 'template')) ? App::$page['template'] : 'default') . '.php')

-	);

-}

-

-/**

- * @brief Returns appplication root directory.

- *

- * @return string

- */

-function appdirpath() {

-	return dirname(__FILE__);

-}

-

-/**

- * @brief Set a pageicon.

- *

- * @param string $icon

- */

-function head_set_icon($icon) {

-

-	App::$data['pageicon'] = $icon;

-

-}

-

-/**

- * @brief Get the pageicon.

- *

- * @return string absolut path to pageicon

- */

-function head_get_icon() {

-

-	$icon = App::$data['pageicon'];

-	if (!strpos($icon, '://'))

-		$icon = z_root() . $icon;

-

-	return $icon;

-}

-

-/**

- * @brief Return the Realm of the directory.

- *

- * @return string

- */

-function get_directory_realm() {

-	if ($x = get_config('system', 'directory_realm'))

-		return $x;

-

-	return DIRECTORY_REALM;

-}

-

-/**

- * @brief Return the primary directory server.

- *

- * @return string

- */

-function get_directory_primary() {

-

-	$dirmode = intval(get_config('system', 'directory_mode'));

-

-	if ($dirmode == DIRECTORY_MODE_STANDALONE || $dirmode == DIRECTORY_MODE_PRIMARY) {

-		return z_root();

-	}

-

-	if ($x = get_config('system', 'directory_primary'))

-		return $x;

-

-	return DIRECTORY_FALLBACK_MASTER;

-}

-

-

-/**

- * @brief Return relative date of last completed poller execution.

- *

- * @return string relative date of last completed poller execution

- */

-function get_poller_runtime() {

-	$t = get_config('system', 'lastpoll');

-

-	return relative_date($t);

-}

-

-function z_get_upload_dir() {

-	$upload_dir = get_config('system', 'uploaddir');

-	if (!$upload_dir)

-		$upload_dir = ini_get('upload_tmp_dir');

-	if (!$upload_dir)

-		$upload_dir = sys_get_temp_dir();

-

-	return $upload_dir;

-}

-

-function z_get_temp_dir() {

-	$temp_dir = get_config('system', 'tempdir');

-	if (!$temp_dir)

-		$temp_dir = sys_get_temp_dir();

-

-	return $temp_dir;

-}

-

-

-/**

- * @brief Check if server certificate is valid.

- *

- * Notify admin if not.

- */

-function z_check_cert() {

-	if (strpos(z_root(), 'https://') !== false) {

-		$x = z_fetch_url(z_root() . '/siteinfo.json');

-		if (!$x['success']) {

-			$recurse = 0;

-			$y       = z_fetch_url(z_root() . '/siteinfo.json', false, $recurse, ['novalidate' => true]);

-			if ($y['success'])

-				cert_bad_email();

-		}

-	}

-}

-

-

-/**

- * @brief Send email to admin if server has an invalid certificate.

- *

- * If a hub is available over https it must have a publicly valid certificate.

- */

-function cert_bad_email() {

-	return z_mail(

-		[

-			'toEmail'        => App::$config['system']['admin_email'],

-			'messageSubject' => sprintf(t('[$Projectname] Website SSL error for %s'), App::get_hostname()),

-			'textVersion'    => replace_macros(get_intltext_template('cert_bad_eml.tpl'),

-				[

-					'$sitename' => App::$config['system']['sitename'],

-					'$siteurl'  => z_root(),

-					'$error'    => t('Website SSL certificate is not valid. Please correct.')

-				]

-			)

-		]

-	);

-

-}

-

-

-function check_for_new_perms() {

-

-	// Do not execute if we are in the middle of a git update and the relevant versions don't match

-

-	if (Permissions::version() != PermissionRoles::version())

-		return;

-

-	$pregistered = get_config('system', 'perms');

-

-	$pcurrent = array_keys(Permissions::Perms());

-

-	if (!$pregistered) {

-		set_config('system', 'perms', $pcurrent);

-		return;

-	}

-

-	$found_new_perm = false;

-

-	foreach ($pcurrent as $p) {

-		if (!in_array($p, $pregistered)) {

-

-			$found_new_perm = true;

-			// for all channels

-			$c = q("select channel_id from channel where true");

-			if ($c) {

-				foreach ($c as $cc) {

-					// get the permission role

-					$r = q("select v from pconfig where uid = %d and cat = 'system' and k = 'permissions_role'",

-						intval($cc['channel_id'])

-					);

-					if ($r) {

-						// get a list of connections

-						$x = q("select abook_xchan from abook where abook_channel = %d and abook_self = 0",

-							intval($cc['channel_id'])

-						);

-						// get the permissions role details

-						$rp = PermissionRoles::role_perms($r[0]['v']);

-						if ($rp) {

-

-							// for custom permission roles we need to customise how we initiate this new permission

-							if (array_key_exists('role', $rp) && ($rp['role'] === 'custom' || $rp['role'] === '')) {

-								PermissionRoles::new_custom_perms($cc['channel_id'], $p, $x);

-							}

-							else {

-								// set the channel limits if appropriate or 0

-								if (array_key_exists('limits', $rp) && array_key_exists($p, $rp['limits'])) {

-									PermissionLimits::Set($cc['channel_id'], $p, $rp['limits'][$p]);

-								}

-								else {

-									PermissionLimits::Set($cc['channel_id'], $p, 0);

-								}

-

-								$set = ((array_key_exists('perms_connect', $rp) && in_array($p, $rp['perms_connect'])) ? 1 : 0);

-								// foreach connection set to the perms_connect value

-								if ($x) {

-									foreach ($x as $xx) {

-										set_abconfig($cc['channel_id'], $xx['abook_xchan'], 'my_perms', $p, intval($set));

-									}

-								}

-							}

-						}

-					}

-				}

-			}

-		}

-	}

-

-	// We should probably call perms_refresh here, but this should get pushed in 24 hours and there is no urgency

-	if ($found_new_perm)

-		set_config('system', 'perms', $pcurrent);

-}

-

-

-/**

- * @brief Send warnings every 3-5 days if cron is not running.

- */

-function check_cron_broken() {

-

-	$d = get_config('system', 'lastcron');

-

-	if ((!$d) || ($d < datetime_convert('UTC', 'UTC', 'now - 4 hours'))) {

-		Zotlabs\Daemon\Master::Summon(['Cron']);

-		set_config('system', 'lastcron', datetime_convert());

-	}

-

-	$t = get_config('system', 'lastcroncheck');

-	if (!$t) {

-		// never checked before. Start the timer.

-		set_config('system', 'lastcroncheck', datetime_convert());

-		return;

-	}

-

-	if ($t > datetime_convert('UTC', 'UTC', 'now - 3 days')) {

-		// Wait for 3 days before we do anything so as not to swamp the admin with messages

-		return;

-	}

-

-	set_config('system', 'lastcroncheck', datetime_convert());

-

-	if (($d) && ($d > datetime_convert('UTC', 'UTC', 'now - 3 days'))) {

-		// Scheduled tasks have run successfully in the last 3 days.

-		return;

-	}

-

-	return z_mail(

-		[

-			'toEmail'        => App::$config['system']['admin_email'],

-			'messageSubject' => sprintf(t('[$Projectname] Cron tasks not running on %s'), App::get_hostname()),

-			'textVersion'    => replace_macros(get_intltext_template('cron_bad_eml.tpl'),

-				[

-					'$sitename' => App::$config['system']['sitename'],

-					'$siteurl'  => z_root(),

-					'$error'    => t('Cron/Scheduled tasks not running.'),

-					'$lastdate' => (($d) ? $d : t('never'))

-				]

-			)

-		]

-	);

-}

-

-

-/**

- * @brief

- *

- * @param boolean $allow_account (optional) default false

- * @return boolean

- */

-function observer_prohibited($allow_account = false) {

-	if ($allow_account) {

-		return (((get_config('system', 'block_public')) && (!get_account_id()) && (!remote_channel())) ? true : false);

-	}

-	return (((get_config('system', 'block_public')) && (!local_channel()) && (!remote_channel())) ? true : false);

-}

+<?php
+/**
+ * @file boot.php
+ *
+ * @brief This file defines some global constants and includes the central App class.
+ */
+
+/**
+ *
+ * This is an open source decentralised communications
+ * platform combined with a decentralised identity/authentication framework
+ * wrapped in an extensible content management system, providing website designers
+ * the ability to embed fully decentralised communications and social tools
+ * into many traditional website designs (blogs, forums, small business
+ * websites, charitable organisations, etc.). Also provided is DNS mobility
+ * and internet scale privacy/access control.
+ *
+ * This allows any individual website to participate in a matrix of linked
+ * sites and people and media sharing which is far greater than the reach
+ * of an individual site.
+ *
+ * If you are reading the source code and come across a function
+ * or code block which is not documented, but you have a good idea what it
+ * does, please add some descriptive comments and push it to the main project.
+ * Even if your description isn't perfect, it gives us a base which we
+ * can build on and correct - so that eventually everything is fully
+ * documented.
+ */
+
+// composer autoloader for all namespaced Classes
+
+use Zotlabs\Access\PermissionLimits;
+use Zotlabs\Access\PermissionRoles;
+use Zotlabs\Access\Permissions;
+use Zotlabs\Daemon\Master;
+use Zotlabs\Lib\DB_Upgrade;
+use Zotlabs\Lib\Libzot;
+use Zotlabs\Lib\Config;
+
+require_once('vendor/autoload.php');
+
+require_once('include/config.php');
+require_once('include/network.php');
+require_once('include/plugin.php');
+require_once('include/text.php');
+require_once('include/datetime.php');
+require_once('include/language.php');
+require_once('include/nav.php');
+require_once('include/permissions.php');
+require_once('include/features.php');
+require_once('include/taxonomy.php');
+require_once('include/channel.php');
+require_once('include/connections.php');
+require_once('include/account.php');
+require_once('include/zid.php');
+require_once('include/xchan.php');
+require_once('include/hubloc.php');
+require_once('include/attach.php');
+require_once('include/bbcode.php');
+require_once('include/items.php');
+
+define('PLATFORM_NAME', 'hubzilla');
+define('STD_VERSION', '8.6.2');
+define('ZOT_REVISION', '6.0');
+
+define('DB_UPDATE_VERSION', 1258);
+
+define('PROJECT_BASE', __DIR__);
+
+/**
+ * @brief Constant with a HTML line break.
+ *
+ * Contains a HTML line break (br) element and a real carriage return with line
+ * feed for the source.
+ * This can be used in HTML and JavaScript where needed a line break.
+ */
+define('EOL', '<br>' . "\r\n");
+define('EMPTY_STR', '');
+define('ATOM_TIME', 'Y-m-d\\TH:i:s\\Z'); // aka ISO 8601 "Zulu"
+define('TEMPLATE_BUILD_PATH', 'store/[data]/smarty3');
+
+define('DIRECTORY_MODE_NORMAL', 0x0000); // A directory client
+define('DIRECTORY_MODE_PRIMARY', 0x0001); // There can only be *one* primary directory server in a directory_realm.
+define('DIRECTORY_MODE_SECONDARY', 0x0002); // All other mirror directory servers
+define('DIRECTORY_MODE_STANDALONE', 0x0100); // A detached (off the grid) hub with itself as directory server.
+
+define('DIRECTORY_FLAG_OK',     0);
+define('DIRECTORY_FLAG_UNSAFE', 1);
+define('DIRECTORY_FLAG_HIDDEN', 2);
+
+// We will look for upstream directories whenever me make contact
+// with other sites, but if this is a new installation and isn't
+// a standalone hub, we need to seed the service with a starting
+// point to go out and find the rest of the world.
+
+define('DIRECTORY_REALM', 'RED_GLOBAL');
+define('DIRECTORY_FALLBACK_MASTER', 'https://hub.netzgemeinde.eu');
+
+
+function get_directory_fallback_servers() {
+	$ret = [
+		'https://hub.netzgemeinde.eu',
+		'https://zotsite.net'
+	];
+
+	return $ret;
+}
+
+
+/**
+ *
+ * Image storage quality. Lower numbers save space at cost of image detail.
+ * For ease of upgrade, please do not change here. Change jpeg quality with
+ * App::$config['system']['jpeg_quality'] = n;
+ * in .htconfig.php, where n is netween 1 and 100, and with very poor results
+ * below about 50
+ */
+define('JPEG_QUALITY', 100);
+
+/**
+ * App::$config['system']['png_quality'] from 0 (uncompressed) to 9
+ */
+define('PNG_QUALITY', 8);
+
+/**
+ * App::$config['system']['webp_quality'] from 1 (maximum compressed) to 100 (uncompressed)
+ */
+define('WEBP_QUALITY', 80);
+
+/**
+ * Language detection parameters
+ */
+define('LANGUAGE_DETECT_MIN_LENGTH', 128);
+define('LANGUAGE_DETECT_MIN_CONFIDENCE', 0.01);
+
+
+/**
+ * Default permissions for file-based storage (webDAV, etc.)
+ * These files will be owned by the webserver who will need write
+ * access to the "storage" folder.
+ * Ideally you should make this 700, however some hosted platforms
+ * may not let you change ownership of this directory so we're
+ * defaulting to both owner-write and group-write privilege.
+ * This should work for most cases without modification.
+ * Over-ride this in your .htconfig.php if you need something
+ * either more or less restrictive.
+ */
+
+if (!defined('STORAGE_DEFAULT_PERMISSIONS')) {
+	define('STORAGE_DEFAULT_PERMISSIONS', 0770);
+}
+
+
+/**
+ *
+ * An alternate way of limiting picture upload sizes. Specify the maximum pixel
+ * length that pictures are allowed to be (for non-square pictures, it will apply
+ * to the longest side). Pictures longer than this length will be resized to be
+ * this length (on the longest side, the other side will be scaled appropriately).
+ * Modify this value using
+ *
+ *    App::$config['system']['max_image_length'] = n;
+ *
+ * in .htconfig.php
+ *
+ * If you don't want to set a maximum length, set to -1. The default value is
+ * defined by 'MAX_IMAGE_LENGTH' below.
+ *
+ */
+define('MAX_IMAGE_LENGTH', -1);
+
+
+/**
+ * log levels
+ */
+
+define('LOGGER_NORMAL', 0);
+define('LOGGER_TRACE', 1);
+define('LOGGER_DEBUG', 2);
+define('LOGGER_DATA', 3);
+define('LOGGER_ALL', 4);
+
+
+/**
+ * registration policies
+ */
+
+define('REGISTER_CLOSED', 0);
+define('REGISTER_APPROVE', 1);
+define('REGISTER_OPEN', 2);
+
+
+/**
+ * site access policy
+ */
+
+define('ACCESS_PRIVATE', 0);
+define('ACCESS_PAID', 1);
+define('ACCESS_FREE', 2);
+define('ACCESS_TIERED', 3);
+
+/**
+ * DB update return values
+ */
+
+define('UPDATE_SUCCESS', 0);
+define('UPDATE_FAILED', 1);
+
+
+define('CLIENT_MODE_NORMAL', 0x0000);
+define('CLIENT_MODE_LOAD', 0x0001);
+define('CLIENT_MODE_UPDATE', 0x0002);
+
+
+/**
+ *
+ * Channel pageflags
+ *
+ */
+
+define('PAGE_NORMAL', 0x0000);
+define('PAGE_HIDDEN', 0x0001);
+define('PAGE_AUTOCONNECT', 0x0002);
+define('PAGE_APPLICATION', 0x0004);
+define('PAGE_ALLOWCODE', 0x0008);
+define('PAGE_PREMIUM', 0x0010);
+define('PAGE_ADULT', 0x0020);
+define('PAGE_CENSORED', 0x0040); // Site admin has blocked this channel from appearing in casual search results and site feeds
+define('PAGE_SYSTEM', 0x1000);
+define('PAGE_HUBADMIN', 0x2000); // set this to indicate a preferred admin channel rather than the
+// default channel of any accounts with the admin role.
+define('PAGE_REMOVED', 0x8000);
+
+
+/**
+ * Photo usage types
+ */
+
+define('PHOTO_NORMAL', 0x0000);
+define('PHOTO_PROFILE', 0x0001);
+define('PHOTO_XCHAN', 0x0002);
+define('PHOTO_THING', 0x0004);
+define('PHOTO_COVER', 0x0010);
+define('PHOTO_CACHE', 0x0020);
+
+define('PHOTO_ADULT', 0x0008);
+define('PHOTO_FLAG_OS', 0x4000);
+
+
+define('PHOTO_RES_ORIG', 0);
+define('PHOTO_RES_1024', 1);  // rectangular 1024 max width or height, floating height if not (4:3)
+define('PHOTO_RES_640', 2);  // to accomodate SMBC vertical comic strips without scrunching the width
+define('PHOTO_RES_320', 3);  // accordingly
+
+define('PHOTO_RES_PROFILE_300', 4);  // square 300 px
+define('PHOTO_RES_PROFILE_80', 5);  // square 80 px
+define('PHOTO_RES_PROFILE_48', 6);  // square 48 px
+
+define('PHOTO_RES_COVER_1200', 7);  // 1200w x 435h (2.75:1)
+define('PHOTO_RES_COVER_850', 8);  // 850w x 310h
+define('PHOTO_RES_COVER_425', 9);  // 425w x 160h
+
+
+/**
+ * Menu types
+ */
+
+define('MENU_SYSTEM', 0x0001);
+define('MENU_BOOKMARK', 0x0002);
+
+/**
+ * Network and protocol family types
+ */
+
+define('NETWORK_FRND', 'friendica-over-diaspora');    // Friendica, Mistpark, other DFRN implementations
+define('NETWORK_DFRN', 'dfrn');    // Friendica, Mistpark, other DFRN implementations
+define('NETWORK_ZOT', 'zot');     // Zot!
+define('NETWORK_OSTATUS', 'stat');    // status.net, identi.ca, GNU-social, other OStatus implementations
+define('NETWORK_GNUSOCIAL', 'gnusoc');    // status.net, identi.ca, GNU-social, other OStatus implementations
+define('NETWORK_FEED', 'rss');    // RSS/Atom feeds with no known "post/notify" protocol
+define('NETWORK_DIASPORA', 'diaspora');    // Diaspora
+define('NETWORK_ACTIVITYPUB', 'activitypub');
+define('NETWORK_MAIL', 'mail');    // IMAP/POP
+define('NETWORK_MAIL2', 'mai2');    // extended IMAP/POP
+define('NETWORK_FACEBOOK', 'face');    // Facebook API
+define('NETWORK_LINKEDIN', 'lnkd');    // LinkedIn
+define('NETWORK_XMPP', 'xmpp');    // XMPP
+define('NETWORK_MYSPACE', 'mysp');    // MySpace
+define('NETWORK_GPLUS', 'goog');    // Google+
+define('NETWORK_PHANTOM', 'unkn');    // Place holder
+
+
+/**
+ * Permissions
+ */
+
+define('PERMS_R_STREAM', 0x00001);
+define('PERMS_R_PROFILE', 0x00002);
+define('PERMS_R_PHOTOS', 0x00004);
+define('PERMS_R_ABOOK', 0x00008);
+
+define('PERMS_W_STREAM', 0x00010);
+define('PERMS_W_WALL', 0x00020);
+define('PERMS_W_TAGWALL', 0x00040);
+define('PERMS_W_COMMENT', 0x00080);
+define('PERMS_W_MAIL', 0x00100);
+define('PERMS_W_PHOTOS', 0x00200);
+define('PERMS_W_CHAT', 0x00400);
+define('PERMS_A_DELEGATE', 0x00800);
+
+define('PERMS_R_STORAGE', 0x01000);
+define('PERMS_W_STORAGE', 0x02000);
+define('PERMS_R_PAGES', 0x04000);
+define('PERMS_W_PAGES', 0x08000);
+define('PERMS_A_REPUBLISH', 0x10000);
+define('PERMS_W_LIKE', 0x20000);
+
+// General channel permissions
+// 0 = Only you
+define('PERMS_PUBLIC', 0x0001); // anybody
+define('PERMS_NETWORK', 0x0002); // anybody in this network
+define('PERMS_SITE', 0x0004); // anybody on this site
+define('PERMS_CONTACTS', 0x0008); // any of my connections
+define('PERMS_SPECIFIC', 0x0080); // only specific connections
+define('PERMS_AUTHED', 0x0100); // anybody authenticated (could include visitors from other networks)
+define('PERMS_PENDING', 0x0200); // any connections including those who haven't yet been approved
+
+// Address book flags
+
+define('ABOOK_FLAG_BLOCKED', 0x0001);
+define('ABOOK_FLAG_IGNORED', 0x0002);
+define('ABOOK_FLAG_HIDDEN', 0x0004);
+define('ABOOK_FLAG_ARCHIVED', 0x0008);
+define('ABOOK_FLAG_PENDING', 0x0010);
+define('ABOOK_FLAG_UNCONNECTED', 0x0020);
+define('ABOOK_FLAG_SELF', 0x0080);
+define('ABOOK_FLAG_FEED', 0x0100);
+
+
+define('MAIL_DELETED', 0x0001);
+define('MAIL_REPLIED', 0x0002);
+define('MAIL_ISREPLY', 0x0004);
+define('MAIL_SEEN', 0x0008);
+define('MAIL_RECALLED', 0x0010);
+define('MAIL_OBSCURED', 0x0020);
+
+
+define('ATTACH_FLAG_DIR', 0x0001);
+define('ATTACH_FLAG_OS', 0x0002);
+
+
+define('MENU_ITEM_ZID', 0x0001);
+define('MENU_ITEM_NEWWIN', 0x0002);
+define('MENU_ITEM_CHATROOM', 0x0004);
+
+
+define('SITE_TYPE_ZOT', 0);
+define('SITE_TYPE_NOTZOT', 1);
+define('SITE_TYPE_UNKNOWN', 2);
+
+/**
+ * Poll/Survey types
+ */
+
+define('POLL_SIMPLE_RATING', 0x0001);  // 1-5
+define('POLL_TENSCALE', 0x0002);  // 1-10
+define('POLL_MULTIPLE_CHOICE', 0x0004);
+define('POLL_OVERWRITE', 0x8000);  // If you vote twice remove the prior entry
+
+define('HUBLOC_OFFLINE', 0x0001);
+
+define('DROPITEM_NORMAL', 0);
+define('DROPITEM_PHASE1', 1);
+define('DROPITEM_PHASE2', 2);
+
+
+/**
+ * Maximum number of "people who like (or don't like) this"  that we will list by name
+ */
+
+define('MAX_LIKERS', 10);
+
+/**
+ * Communication timeout
+ */
+
+define('ZCURL_TIMEOUT', (-1));
+
+
+/**
+ * email notification options
+ */
+
+define('NOTIFY_INTRO', 0x0001);
+define('NOTIFY_CONFIRM', 0x0002);
+define('NOTIFY_WALL', 0x0004);
+define('NOTIFY_COMMENT', 0x0008);
+define('NOTIFY_MAIL', 0x0010);
+define('NOTIFY_SUGGEST', 0x0020);
+define('NOTIFY_PROFILE', 0x0040);
+define('NOTIFY_TAGSELF', 0x0080);
+define('NOTIFY_TAGSHARE', 0x0100);
+define('NOTIFY_POKE', 0x0200);
+define('NOTIFY_LIKE', 0x0400);
+
+define('NOTIFY_SYSTEM', 0x8000);
+
+/**
+ * visual notification options
+ */
+
+define('VNOTIFY_NETWORK', 0x0001);
+define('VNOTIFY_CHANNEL', 0x0002);
+define('VNOTIFY_MAIL', 0x0004);
+define('VNOTIFY_EVENT', 0x0008);
+define('VNOTIFY_EVENTTODAY', 0x0010);
+define('VNOTIFY_BIRTHDAY', 0x0020);
+define('VNOTIFY_SYSTEM', 0x0040);
+define('VNOTIFY_INFO', 0x0080);
+define('VNOTIFY_ALERT', 0x0100);
+define('VNOTIFY_INTRO', 0x0200);
+define('VNOTIFY_REGISTER', 0x0400);
+define('VNOTIFY_FILES', 0x0800);
+define('VNOTIFY_PUBS', 0x1000);
+define('VNOTIFY_LIKE', 0x2000);
+define('VNOTIFY_FORUMS', 0x4000);
+
+
+/**
+ * Tag/term types
+ */
+
+define('TERM_UNKNOWN', 0);
+define('TERM_HASHTAG', 1);
+define('TERM_MENTION', 2);
+define('TERM_CATEGORY', 3);
+define('TERM_PCATEGORY', 4);
+define('TERM_FILE', 5);
+define('TERM_SAVEDSEARCH', 6);
+define('TERM_THING', 7);
+define('TERM_BOOKMARK', 8);
+define('TERM_HIERARCHY', 9);
+define('TERM_COMMUNITYTAG', 10);
+define('TERM_FORUM', 11);
+define('TERM_EMOJI', 12);
+
+define('TERM_OBJ_POST', 1);
+define('TERM_OBJ_FILE', 2);
+define('TERM_OBJ_PROFILE', 3);
+define('TERM_OBJ_CHANNEL', 4);
+define('TERM_OBJ_OBJECT', 5);
+define('TERM_OBJ_THING', 6);
+define('TERM_OBJ_APP', 7);
+
+
+/**
+ * various namespaces we may need to parse
+ */
+define('PROTOCOL_ZOT', 'http://purl.org/zot/protocol');
+define('PROTOCOL_ZOT6', 'http://purl.org/zot/protocol/6.0');
+define('NAMESPACE_ZOT', 'http://purl.org/zot');
+define('NAMESPACE_DFRN', 'http://purl.org/macgirvin/dfrn/1.0');
+define('NAMESPACE_THREAD', 'http://purl.org/syndication/thread/1.0');
+define('NAMESPACE_TOMB', 'http://purl.org/atompub/tombstones/1.0');
+define('NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/');
+define('NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/');
+define('NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia');
+define('NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env');
+define('NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe');
+define('NAMESPACE_GEORSS', 'http://www.georss.org/georss');
+define('NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0');
+define('NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from');
+define('NAMESPACE_OSTATUS', 'http://ostatus.org/schema/1.0');
+define('NAMESPACE_STATUSNET', 'http://status.net/schema/api/1/');
+define('NAMESPACE_ATOM1', 'http://www.w3.org/2005/Atom');
+define('NAMESPACE_YMEDIA', 'http://search.yahoo.com/mrss/');
+
+// We should be using versioned jsonld contexts so that signatures will be slightly more reliable.
+// Why signatures are unreliable by design is a problem nobody seems to care about
+// "because it's a proposed W3C standard". .
+
+// Anyway, if you use versioned contexts, communication with Mastodon fails. Have not yet investigated
+// the reason for the dependency but for the current time, use the standard non-versioned context.
+//define ( 'ACTIVITYSTREAMS_JSONLD_REV', 'https://www.w3.org/ns/activitystreams-history/v1.8.jsonld' );
+
+define('ACTIVITYSTREAMS_JSONLD_REV', 'https://www.w3.org/ns/activitystreams');
+
+define('ZOT_APSCHEMA_REV', '/apschema/v1.10');
+/**
+ * activity stream defines
+ */
+
+define('ACTIVITY_PUBLIC_INBOX', 'https://www.w3.org/ns/activitystreams#Public');
+
+define('ACTIVITY_REACT', NAMESPACE_ZOT . '/activity/react');
+define('ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like');
+define('ACTIVITY_DISLIKE', NAMESPACE_ZOT . '/activity/dislike');
+define('ACTIVITY_AGREE', NAMESPACE_ZOT . '/activity/agree');
+define('ACTIVITY_DISAGREE', NAMESPACE_ZOT . '/activity/disagree');
+define('ACTIVITY_ABSTAIN', NAMESPACE_ZOT . '/activity/abstain');
+define('ACTIVITY_ATTEND', NAMESPACE_ZOT . '/activity/attendyes');
+define('ACTIVITY_ATTENDNO', NAMESPACE_ZOT . '/activity/attendno');
+define('ACTIVITY_ATTENDMAYBE', NAMESPACE_ZOT . '/activity/attendmaybe');
+define('ACTIVITY_POLLRESPONSE', NAMESPACE_ZOT . '/activity/pollresponse');
+
+define('ACTIVITY_OBJ_HEART', NAMESPACE_ZOT . '/activity/heart');
+
+define('ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend');
+define('ACTIVITY_REQ_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'request-friend');
+define('ACTIVITY_UNFRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend');
+define('ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow');
+define('ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following');
+define('ACTIVITY_JOIN', NAMESPACE_ACTIVITY_SCHEMA . 'join');
+
+define('ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post');
+define('ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update');
+define('ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag');
+define('ACTIVITY_SHARE', NAMESPACE_ACTIVITY_SCHEMA . 'share');
+define('ACTIVITY_FAVORITE', NAMESPACE_ACTIVITY_SCHEMA . 'favorite');
+define('ACTIVITY_CREATE', NAMESPACE_ACTIVITY_SCHEMA . 'create');
+define('ACTIVITY_DELETE', NAMESPACE_ACTIVITY_SCHEMA . 'delete');
+define('ACTIVITY_WIN', NAMESPACE_ACTIVITY_SCHEMA . 'win');
+define('ACTIVITY_LOSE', NAMESPACE_ACTIVITY_SCHEMA . 'lose');
+define('ACTIVITY_TIE', NAMESPACE_ACTIVITY_SCHEMA . 'tie');
+define('ACTIVITY_COMPLETE', NAMESPACE_ACTIVITY_SCHEMA . 'complete');
+
+define('ACTIVITY_POKE', NAMESPACE_ZOT . '/activity/poke');
+define('ACTIVITY_MOOD', NAMESPACE_ZOT . '/activity/mood');
+
+define('ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment');
+define('ACTIVITY_OBJ_ACTIVITY', NAMESPACE_ACTIVITY_SCHEMA . 'activity');
+define('ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note');
+define('ACTIVITY_OBJ_ARTICLE', NAMESPACE_ACTIVITY_SCHEMA . 'article');
+define('ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person');
+define('ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo');
+define('ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo');
+define('ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album');
+define('ACTIVITY_OBJ_EVENT', NAMESPACE_ACTIVITY_SCHEMA . 'event');
+define('ACTIVITY_OBJ_GROUP', NAMESPACE_ACTIVITY_SCHEMA . 'group');
+define('ACTIVITY_OBJ_GAME', NAMESPACE_ACTIVITY_SCHEMA . 'game');
+define('ACTIVITY_OBJ_WIKI', NAMESPACE_ACTIVITY_SCHEMA . 'wiki');
+define('ACTIVITY_OBJ_TAGTERM', NAMESPACE_ZOT . '/activity/tagterm');
+define('ACTIVITY_OBJ_PROFILE', NAMESPACE_ZOT . '/activity/profile');
+define('ACTIVITY_OBJ_THING', NAMESPACE_ZOT . '/activity/thing');
+define('ACTIVITY_OBJ_LOCATION', NAMESPACE_ZOT . '/activity/location');
+define('ACTIVITY_OBJ_FILE', NAMESPACE_ZOT . '/activity/file');
+define('ACTIVITY_OBJ_CARD', NAMESPACE_ZOT . '/activity/card');
+
+/**
+ * Account Flags
+ */
+
+define('ACCOUNT_OK', 0x0000);
+define('ACCOUNT_UNVERIFIED', 0x0001);
+define('ACCOUNT_BLOCKED', 0x0002);
+define('ACCOUNT_EXPIRED', 0x0004);
+define('ACCOUNT_REMOVED', 0x0008);
+define('ACCOUNT_PENDING', 0x0010);
+
+/**
+ * Account roles
+ */
+
+define('ACCOUNT_ROLE_SYSTEM', 0x0002);
+define('ACCOUNT_ROLE_DEVELOPER', 0x0004);
+define('ACCOUNT_ROLE_ADMIN', 0x1000);
+
+/**
+ * Item visibility
+ */
+
+define('ITEM_VISIBLE', 0x0000);
+define('ITEM_HIDDEN', 0x0001);
+define('ITEM_BLOCKED', 0x0002);
+define('ITEM_MODERATED', 0x0004);
+define('ITEM_SPAM', 0x0008);
+define('ITEM_DELETED', 0x0010);
+define('ITEM_UNPUBLISHED', 0x0020);
+define('ITEM_WEBPAGE', 0x0040);    // is a static web page, not a conversational item
+define('ITEM_DELAYED_PUBLISH', 0x0080);
+define('ITEM_BUILDBLOCK', 0x0100);    // Named thusly to make sure nobody confuses this with ITEM_BLOCKED
+define('ITEM_PDL', 0x0200);    // Page Description Language - e.g. Comanche
+define('ITEM_BUG', 0x0400);    // Is a bug, can be used by the internal bug tracker
+define('ITEM_PENDING_REMOVE', 0x0800);   // deleted, notification period has lapsed
+define('ITEM_DOC', 0x1000);   // hubzilla only, define here so that item import does the right thing
+define('ITEM_CARD', 0x2000);
+define('ITEM_ARTICLE', 0x4000);
+
+
+define('ITEM_TYPE_POST', 0);
+define('ITEM_TYPE_BLOCK', 1);
+define('ITEM_TYPE_PDL', 2);
+define('ITEM_TYPE_WEBPAGE', 3);
+define('ITEM_TYPE_BUG', 4);
+define('ITEM_TYPE_DOC', 5);
+define('ITEM_TYPE_CARD', 6);
+define('ITEM_TYPE_ARTICLE', 7);
+//OSADA ITEM_TYPE_MAIL = 8
+define('ITEM_TYPE_CUSTOM', 9);
+
+define('ITEM_IS_STICKY', 1000);
+
+
+define('DBTYPE_MYSQL', 0);
+define('DBTYPE_POSTGRES', 1);
+
+
+function sys_boot() {
+
+
+	// our central App object
+
+	App::init();
+
+	/*
+	 * Load the configuration file which contains our DB credentials.
+	 * Ignore errors. If the file doesn't exist or is empty, we are running in
+	 * installation mode.
+	 */
+
+	// miniApp is a conversion object from old style .htconfig.php files
+
+	$a = new miniApp;
+
+
+	App::$install = ((file_exists('.htconfig.php') && filesize('.htconfig.php')) ? false : true);
+
+	@include('.htconfig.php');
+
+	// allow somebody to set some initial settings just in case they can't
+	// install without special fiddling
+
+	if (App::$install && file_exists('.htpreconfig.php'))
+		@include('.htpreconfig.php');
+
+	if (array_key_exists('default_timezone', get_defined_vars())) {
+		App::$config['system']['timezone'] = $default_timezone;
+	}
+
+	$a->convert();
+
+	App::$config['system']['server_role'] = 'pro';
+
+	App::$timezone = ((App::$config['system']['timezone']) ? App::$config['system']['timezone'] : 'UTC');
+	date_default_timezone_set(App::$timezone);
+
+
+	if (!defined('DEFAULT_PLATFORM_ICON')) {
+		define('DEFAULT_PLATFORM_ICON', '/images/hz-32.png');
+	}
+
+	if (!defined('DEFAULT_NOTIFY_ICON')) {
+		define('DEFAULT_NOTIFY_ICON', '/images/hz-white-64.png');
+	}
+
+	App::head_set_icon(DEFAULT_PLATFORM_ICON);
+
+	/*
+	 * Try to open the database;
+	 */
+
+	require_once('include/dba/dba_driver.php');
+
+	if (!App::$install) {
+
+		if (empty($db_charset)) {
+			$db_charset = ((intval($db_type) === 0) ? 'utf8mb4' : 'UTF8');
+		}
+
+		DBA::dba_factory($db_host, $db_port, $db_user, $db_pass, $db_data, $db_type, $db_charset, App::$install);
+		if (!DBA::$dba->connected) {
+			system_unavailable();
+		}
+
+		unset($db_host, $db_port, $db_user, $db_pass, $db_data, $db_type, $db_charset);
+
+		/*
+		 * Load configs from db. Overwrite configs from .htconfig.php
+		 */
+
+		load_config('system');
+		load_config('feature');
+
+		App::$session = new Zotlabs\Web\Session();
+		App::$session->init();
+		load_hooks();
+		/**
+		 * @hooks init_1
+		 */
+		call_hooks('init_1');
+	}
+}
+
+
+function startup() {
+	error_reporting(E_ALL & ~E_WARNING & ~E_NOTICE & ~E_DEPRECATED);
+
+	// Some hosting providers block/disable this
+	@set_time_limit(0);
+
+	if (function_exists('ini_set')) {
+		// This has to be quite large to deal with embedded private photos
+		//@ini_set('pcre.backtrack_limit', 500000);
+
+		// Use cookies to store the session ID on the client side
+		@ini_set('session.use_only_cookies', 1);
+
+		// Disable transparent Session ID support
+		@ini_set('session.use_trans_sid', 0);
+	}
+}
+
+
+/**
+ * class miniApp
+ *
+ * this is a transient structure which is needed to convert the $a->config settings
+ * from older (existing) htconfig files which used a global App ($a) into the updated App structure
+ * which is now static (although currently constructed at startup). We are only converting
+ * 'system' config settings.
+ */
+class miniApp {
+	public $config = ['system' => []];
+
+	public function convert() {
+		if ($this->config['system']) {
+			foreach ($this->config['system'] as $k => $v)
+				App::$config['system'][$k] = $v;
+		}
+	}
+}
+
+
+/**
+ * class: App
+ *
+ * @brief Our main application structure for the life of this page.
+ *
+ * Primarily deals with the URL that got us here
+ * and tries to make some sense of it, and
+ * stores our page contents and config storage
+ * and anything else that might need to be passed around
+ * before we spit the page out.
+ *
+ */
+class App {
+
+	public static $install = false;           // true if we are installing the software
+	public static $account = null;            // account record of the logged-in account
+	public static $channel = null;            // channel record of the current channel of the logged-in account
+	public static $observer = null;            // xchan record of the page observer
+	public static $profile_uid = 0;              // If applicable, the channel_id of the "page owner"
+	public static $poi = null;            // "person of interest", generally a referenced connection
+	private static $oauth_key = null;            // consumer_id of oauth request, if used
+	public static $layout = [];         // Comanche parsed template
+	public static $pdl = null;            // Comanche page description
+	private static $perms = null;            // observer permissions
+	private static $widgets = [];         // widgets for this page
+	public static $config = [];         // config cache
+	public static $override_intltext_templates = [];
+	public static $override_markup_templates = [];
+	public static $override_templateroot = null;
+	public static $override_helproot = null;
+	public static $override_helpfiles = [];
+
+	public static $session = null;
+	public static $groups;
+	public static $language;
+	public static $langsave;
+	public static $rtl = false;
+	public static $plugins_admin;
+	public static $module_loaded = false;
+	public static $query_string;
+	public static $page;
+	public static $profile;
+	public static $user;
+	public static $cid;
+	public static $contact;
+	public static $contacts;
+	public static $content;
+	public static $data = [];
+	public static $error = false;
+	public static $emojitab = false;
+	public static $cmd = '';
+	public static $argv;
+	public static $argc;
+	public static $module;
+	public static $pager;
+	public static $strings;
+	public static $stringsave;   // used in push_lang() and pop_lang()
+	public static $hooks;
+	public static $timezone;
+	public static $interactive = true;
+	public static $plugins;
+	private static $apps = [];
+	public static $identities;
+	public static $css_sources = [];
+	public static $js_sources = [];
+	public static $linkrel = [];
+	public static $theme_info = [];
+	public static $is_sys = false;
+	public static $nav_sel;
+	public static $comanche;
+
+
+	public static $channel_links;
+
+
+	public static $category;
+
+	// Allow themes to control internal parameters
+	// by changing App values in theme.php
+
+	public static $sourcename = '';
+	public static $videowidth = 425;
+	public static $videoheight = 350;
+	public static $force_max_items = 0;
+	public static $theme_thread_allow = true;
+
+	/**
+	 * @brief An array for all theme-controllable parameters
+	 *
+	 * Mostly unimplemented yet. Only options 'template_engine' and
+	 * beyond are used.
+	 */
+	private static $theme = [
+		'sourcename'      => '',
+		'videowidth'      => 425,
+		'videoheight'     => 350,
+		'force_max_items' => 0,
+		'thread_allow'    => true,
+		'stylesheet'      => '',
+		'template_engine' => 'smarty3',
+	];
+
+	/**
+	 * @brief An array of registered template engines ('name'=>'class name')
+	 */
+	public static $template_engines = [];
+	/**
+	 * @brief An array of instanced template engines ('name'=>'instance')
+	 */
+	public static $template_engine_instance = [];
+
+	private static $ldelim = [
+		'internal' => '',
+		'smarty3'  => '{{'
+	];
+	private static $rdelim = [
+		'internal' => '',
+		'smarty3'  => '}}'
+	];
+
+	// These represent the URL which was used to access the page
+
+	private static $scheme;
+	private static $hostname;
+	private static $path;
+
+	// This is our standardised URL - regardless of what was used
+	// to access the page
+
+	private static $baseurl;
+
+	public static $meta;
+
+	/**
+	 * App constructor.
+	 */
+	public static function init() {
+		// we'll reset this after we read our config file
+		date_default_timezone_set('UTC');
+
+		self::$config = ['system' => []];
+		self::$page   = [];
+		self::$pager  = [];
+
+		self::$query_string = '';
+
+
+		startup();
+
+		set_include_path(
+			'include' . PATH_SEPARATOR
+			. 'library' . PATH_SEPARATOR
+			. 'library/langdet' . PATH_SEPARATOR
+			. '.');
+
+		self::$scheme = 'http';
+		if (x($_SERVER, 'HTTPS') && $_SERVER['HTTPS'])
+			self::$scheme = 'https';
+		elseif (x($_SERVER, 'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
+			self::$scheme = 'https';
+
+		if (x($_SERVER, 'SERVER_NAME')) {
+			self::$hostname = punify($_SERVER['SERVER_NAME']);
+
+			if (x($_SERVER, 'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
+				self::$hostname .= ':' . $_SERVER['SERVER_PORT'];
+
+			/*
+			 * Figure out if we are running at the top of a domain
+			 * or in a sub-directory and adjust accordingly
+			 */
+			$path = trim(dirname($_SERVER['SCRIPT_NAME']), '/\\');
+			if (isset($path) && strlen($path) && ($path != self::$path))
+				self::$path = $path;
+		}
+
+		if ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 2) === "q=") {
+			self::$query_string = str_replace(['<', '>'], ['&lt;', '&gt;'], substr($_SERVER['QUERY_STRING'], 2));
+
+			// removing trailing / - maybe a nginx problem
+			if (substr(self::$query_string, 0, 1) == "/")
+				self::$query_string = substr(self::$query_string, 1);
+
+      // trim trailing '&' if no extra args are present
+      self::$query_string = rtrim(self::$query_string, '&');
+
+			// change the first & to ?
+			self::$query_string = preg_replace('/&/', '?', self::$query_string, 1);
+		}
+
+		if (x($_GET, 'q'))
+			self::$cmd = escape_tags(trim($_GET['q'], '/\\'));
+
+		// Serve raw files from the file system in certain cases.
+		$filext = pathinfo(self::$cmd, PATHINFO_EXTENSION);
+
+		$serve_rawfiles = [
+			'jpg'   => 'image/jpeg',
+			'jpeg'  => 'image/jpeg',
+			'gif'   => 'image/gif',
+			'png'   => 'image/png',
+			'webp'  => 'image/webp',
+			'ico'   => 'image/vnd.microsoft.icon',
+			'css'   => 'text/css',
+			'js'    => 'text/javascript',
+			'htm'   => 'text/html',
+			'html'  => 'text/html',
+			'map'   => 'application/octet-stream',
+			'ttf'   => 'font/ttf',
+			'woff'  => 'font/woff',
+			'woff2' => 'font/woff2',
+			'svg'   => 'image/svg+xml'
+		];
+
+		if (array_key_exists($filext, $serve_rawfiles) && file_exists(self::$cmd)) {
+			$staticfilecwd      = getcwd();
+			$staticfilerealpath = realpath(self::$cmd);
+			if (strpos($staticfilerealpath, $staticfilecwd) !== 0) {
+				http_status_exit(404, 'not found');
+			}
+
+			$staticfileetag = '"' . md5($staticfilerealpath . filemtime(self::$cmd)) . '"';
+			header("ETag: " . $staticfileetag);
+			header("Cache-control: max-age=2592000");
+			if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) {
+				// If HTTP_IF_NONE_MATCH is same as the generated ETag => content is the same as browser cache
+				// So send a 304 Not Modified response header and exit
+				if ($_SERVER['HTTP_IF_NONE_MATCH'] == $staticfileetag) {
+					http_status_exit(304, 'not modified');
+				}
+			}
+			header("Content-type: " . $serve_rawfiles[$filext]);
+			$handle = fopen(self::$cmd, "rb");
+			fpassthru($handle);
+			fclose($handle);
+			killme();
+		}
+
+		// unix style "homedir"
+
+		if ((substr(self::$cmd, 0, 1) === '~') || (substr(self::$cmd, 0, 1) === '@'))
+			self::$cmd = 'channel/' . substr(self::$cmd, 1);
+
+		/*
+		 * Break the URL path into C style argc/argv style arguments for our
+		 * modules. Given "http://example.com/module/arg1/arg2", self::$argc
+		 * will be 3 (integer) and self::$argv will contain:
+		 *   [0] => 'module'
+		 *   [1] => 'arg1'
+		 *   [2] => 'arg2'
+		 *
+		 * There will always be one argument. If provided a naked domain
+		 * URL, self::$argv[0] is set to "home".
+		 *
+		 * If $argv[0] has a period in it, for example foo.json; rewrite
+		 * to module = 'foo' and set $_REQUEST['module_format'] = 'json';
+		 */
+
+		self::$argv = explode('/', self::$cmd);
+
+		self::$argc = count(self::$argv);
+		if ((array_key_exists('0', self::$argv)) && strlen(self::$argv[0])) {
+			if (strpos(self::$argv[0], '.')) {
+				$_REQUEST['module_format'] = substr(self::$argv[0], strpos(self::$argv[0], '.') + 1);
+				self::$argv[0]             = substr(self::$argv[0], 0, strpos(self::$argv[0], '.'));
+			}
+
+			self::$module = str_replace(".", "_", self::$argv[0]);
+			self::$module = str_replace("-", "_", self::$module);
+			if (strpos(self::$module, '_') === 0)
+				self::$module = substr(self::$module, 1);
+		}
+		else {
+			self::$argc   = 1;
+			self::$argv   = ['home'];
+			self::$module = 'home';
+		}
+
+
+		/*
+		 * See if there is any page number information, and initialise
+		 * pagination
+		 */
+
+		self::$pager['page']      = ((x($_GET, 'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
+		self::$pager['itemspage'] = 60;
+		self::$pager['start']     = (self::$pager['page'] * self::$pager['itemspage']) - self::$pager['itemspage'];
+		if (self::$pager['start'] < 0)
+			self::$pager['start'] = 0;
+		self::$pager['total'] = 0;
+
+		/*
+		 * register template engines
+		 */
+
+		self::$meta = new Zotlabs\Web\HttpMeta();
+
+		// create an instance of the smarty template engine so we can register it.
+
+		$smarty = new Zotlabs\Render\SmartyTemplate();
+		/// @todo validate if this is still the desired behavior
+		self::register_template_engine(get_class($smarty));
+
+	}
+
+	public static function get_baseurl($ssl = false) {
+		if (is_array(self::$config)
+			&& array_key_exists('system', self::$config)
+			&& is_array(self::$config['system'])
+			&& array_key_exists('baseurl', self::$config['system'])
+			&& strlen(self::$config['system']['baseurl'])) {
+			// get_baseurl() is a heavily used function.
+			// Do not use punify() here until we find a library that performs better than what we have now.
+			//$url = punify(self::$config['system']['baseurl']);
+			$url = self::$config['system']['baseurl'];
+			$url = trim($url, '\\/');
+			return $url;
+		}
+
+		$scheme = self::$scheme;
+
+		self::$baseurl = $scheme . "://" . punify(self::$hostname) . ((isset(self::$path) && strlen(self::$path)) ? '/' . self::$path : '');
+
+		return self::$baseurl;
+	}
+
+	public static function set_baseurl($url) {
+		if (is_array(self::$config)
+			&& array_key_exists('system', self::$config)
+			&& is_array(self::$config['system'])
+			&& array_key_exists('baseurl', self::$config['system'])
+			&& strlen(self::$config['system']['baseurl'])) {
+			$url = punify(self::$config['system']['baseurl']);
+			$url = trim($url, '\\/');
+		}
+
+		$parsed = @parse_url($url);
+
+		self::$baseurl = $url;
+
+		if ($parsed !== false) {
+			self::$scheme = $parsed['scheme'];
+
+			self::$hostname = punify($parsed['host']);
+			if (x($parsed, 'port'))
+				self::$hostname .= ':' . $parsed['port'];
+			if (x($parsed, 'path'))
+				self::$path = trim($parsed['path'], '\\/');
+		}
+	}
+
+	public static function get_scheme() {
+		return self::$scheme;
+	}
+
+	public static function get_hostname() {
+		return self::$hostname;
+	}
+
+	public static function set_hostname($h) {
+		self::$hostname = $h;
+	}
+
+	public static function set_path($p) {
+		self::$path = trim(trim($p), '/');
+	}
+
+	public static function get_path() {
+		return self::$path;
+	}
+
+	public static function get_channel_links() {
+		$s = '';
+		$x = self::$channel_links;
+		if ($x && is_array($x) && count($x)) {
+			foreach ($x as $y) {
+				if ($s) {
+					$s .= ',';
+				}
+				$s .= '<' . $y['url'] . '>; rel="' . $y['rel'] . '"; type="' . $y['type'] . '"';
+			}
+		}
+		return $s;
+	}
+
+	public static function set_account($acct) {
+		self::$account = $acct;
+	}
+
+	public static function get_account() {
+		return self::$account;
+	}
+
+	public static function set_channel($channel) {
+		self::$channel = $channel;
+	}
+
+	public static function get_channel() {
+		return self::$channel;
+	}
+
+	public static function set_observer($xchan) {
+		self::$observer = $xchan;
+	}
+
+	public static function get_observer() {
+		return self::$observer;
+	}
+
+	public static function set_perms($perms) {
+		self::$perms = $perms;
+	}
+
+	public static function get_perms() {
+		return self::$perms;
+	}
+
+	public static function set_oauth_key($consumer_id) {
+		self::$oauth_key = $consumer_id;
+	}
+
+	public static function get_oauth_key() {
+		return self::$oauth_key;
+	}
+
+	public static function get_apps() {
+		return self::$apps;
+	}
+
+	public static function set_apps($arr) {
+		self::$apps = $arr;
+	}
+
+	public static function set_groups($g) {
+		self::$groups = $g;
+	}
+
+	public static function get_groups() {
+		return self::$groups;
+	}
+
+	public static function set_pager_total($n) {
+		self::$pager['total'] = intval($n);
+	}
+
+	public static function set_pager_itemspage($n) {
+		self::$pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
+		self::$pager['start']     = (self::$pager['page'] * self::$pager['itemspage']) - self::$pager['itemspage'];
+	}
+
+	public static function build_pagehead() {
+
+		$user_scalable = ((local_channel()) ? get_pconfig(local_channel(), 'system', 'user_scalable') : 0);
+		if ($user_scalable === false)
+			$user_scalable = 0;
+
+		$preload_images = ((local_channel()) ? get_pconfig(local_channel(), 'system', 'preload_images') : 0);
+		if ($preload_images === false)
+			$preload_images = 0;
+
+		$interval = ((local_channel()) ? get_pconfig(local_channel(), 'system', 'update_interval') : 80000);
+		if ($interval < 10000)
+			$interval = 80000;
+
+		$theme_color = ((local_channel()) ? get_pconfig(local_channel(), 'redbasic', 'nav_bg') : App::$theme_info['theme_color']);
+		if (!$theme_color) {
+			$theme_color = App::$theme_info['theme_color'];
+		}
+
+		if (!isset(self::$page['title']) && isset(self::$config['system']['sitename']))
+			self::$page['title'] = self::$config['system']['sitename'];
+
+		if (isset(self::$page['title']))
+			$pagemeta = ['og:title' => self::$page['title']];
+
+		call_hooks('page_meta', $pagemeta);
+
+		if ($pagemeta) {
+			foreach ($pagemeta as $metaproperty => $metavalue) {
+				self::$meta->set($metaproperty, $metavalue);
+			}
+		}
+
+
+		// webmanifest
+		head_add_link(['rel' => 'manifest', 'href' => '/manifest.json']);
+		self::$meta->set('application-name', Zotlabs\Lib\System::get_platform_name());
+
+		self::$meta->set('generator', Zotlabs\Lib\System::get_platform_name());
+		self::$meta->set('theme-color', $theme_color);
+
+		head_add_link(['rel' => 'shortcut icon', 'href' => head_get_icon()]);
+		head_add_link(['rel' => 'apple-touch-icon', 'href' => '/images/app/hz-192.png']);
+
+
+		$x = ['header' => ''];
+		/**
+		 * @hooks build_pagehead
+		 *   Called when creating the HTML page header.
+		 *   * \e string \b header - Return the HTML header which should be added
+		 */
+		call_hooks('build_pagehead', $x);
+
+		/* put the head template at the beginning of page['htmlhead']
+		 * since the code added by the modules frequently depends on it
+		 * being first
+		 */
+
+		self::$page['htmlhead'] = replace_macros(get_markup_template('head.tpl'),
+				[
+					'$preload_images'  => $preload_images,
+					'$user_scalable'   => $user_scalable,
+					'$query'           => urlencode(self::$query_string),
+					'$baseurl'         => self::get_baseurl(),
+					'$local_channel'   => local_channel(),
+					'$metas'           => self::$meta->get(),
+					'$plugins'         => $x['header'],
+					'$update_interval' => $interval,
+					'$sse_enabled'     => get_config('system', 'sse_enabled', 0),
+					'$head_css'        => head_get_css(),
+					'$head_js'         => head_get_js(),
+					'$linkrel'         => head_get_links(),
+					'$js_strings'      => js_strings(),
+					'$zid'             => get_my_address(),
+					'$channel_id'      => self::$profile['uid'] ?? 0,
+					'$auto_save_draft' => ((isset(self::$profile['uid']) && feature_enabled(self::$profile['uid'], 'auto_save_draft')) ? "true" : "false"),
+					'$module'          => App::$module
+				]
+			) . ((isset(self::$page['htmlhead'])) ? self::$page['htmlhead'] : '');
+
+		// always put main.js at the end
+		self::$page['htmlhead'] .= head_get_main_js();
+	}
+
+	/**
+	 * @brief Register template engine class.
+	 *
+	 * If $name is "", is used class static property $class::$name.
+	 *
+	 * @param string $class
+	 * @param string $name
+	 */
+	public static function register_template_engine($class, $name = '') {
+		if (!$name) {
+			$v = get_class_vars($class);
+			if (x($v, "name")) {
+				$name = $v['name'];
+			}
+		}
+		if (!$name) {
+			echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
+			killme();
+		}
+		self::$template_engines[$name] = $class;
+	}
+
+	/**
+	 * @brief Return template engine instance.
+	 *
+	 * If $name is not defined, return engine defined by theme, or default.
+	 *
+	 * @param string $name Template engine name
+	 *
+	 * @return object Template Engine instance
+	 */
+	public static function template_engine($name = '') {
+		if ($name !== '') {
+			$template_engine = $name;
+		}
+		else {
+			$template_engine = 'smarty3';
+			if (x(self::$theme, 'template_engine')) {
+				$template_engine = self::$theme['template_engine'];
+			}
+		}
+
+		if (isset(self::$template_engines[$template_engine])) {
+			if (isset(self::$template_engine_instance[$template_engine])) {
+				return self::$template_engine_instance[$template_engine];
+			}
+			else {
+				$class                                            = self::$template_engines[$template_engine];
+				$obj                                              = new $class;
+				self::$template_engine_instance[$template_engine] = $obj;
+				return $obj;
+			}
+		}
+
+		echo "template engine <tt>$template_engine</tt> is not registered!\n";
+		killme();
+	}
+
+	/**
+	 * @brief Returns the active template engine.
+	 *
+	 * @return string
+	 */
+	public static function get_template_engine() {
+		return self::$theme['template_engine'];
+	}
+
+	public static function set_template_engine($engine = 'smarty3') {
+		self::$theme['template_engine'] = $engine;
+	}
+
+	public static function get_template_ldelim($engine = 'smarty3') {
+		return self::$ldelim[$engine];
+	}
+
+	public static function get_template_rdelim($engine = 'smarty3') {
+		return self::$rdelim[$engine];
+	}
+
+	public static function head_set_icon($icon) {
+		self::$data['pageicon'] = $icon;
+	}
+
+	public static function head_get_icon() {
+		$icon = self::$data['pageicon'];
+		if (!strpos($icon, '://'))
+			$icon = z_root() . $icon;
+		return $icon;
+	}
+
+} // End App class
+
+
+/**
+ * @brief Multi-purpose function to check variable state.
+ *
+ * Usage: x($var) or $x($array, 'key')
+ *
+ * returns false if variable/key is not set
+ * if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
+ * e.g. x('') or x(0) returns 0;
+ *
+ * @param string|array $s variable to check
+ * @param string $k key inside the array to check
+ *
+ * @return bool|int
+ */
+function x($s, $k = null) {
+	if ($k != null) {
+		if ((is_array($s)) && (array_key_exists($k, $s))) {
+			if ($s[$k])
+				return (int)1;
+			return (int)0;
+		}
+		return false;
+	}
+	else {
+		if (isset($s)) {
+			if ($s) {
+				return (int)1;
+			}
+			return (int)0;
+		}
+		return false;
+	}
+}
+
+
+/**
+ * @brief Called from db initialisation if db is dead.
+ *
+ * @ref include/system_unavailable.php will handle everything further.
+ */
+function system_unavailable() {
+	include('include/system_unavailable.php');
+	system_down();
+	killme();
+}
+
+
+function clean_urls() {
+
+	//	if(App::$config['system']['clean_urls'])
+	return true;
+	//	return false;
+}
+
+function z_path() {
+	$base = z_root();
+	if (!clean_urls())
+		$base .= '/?q=';
+
+	return $base;
+}
+
+/**
+ * @brief Returns the baseurl.
+ *
+ * @return string
+ * @see App::get_baseurl()
+ *
+ */
+function z_root() {
+	return App::get_baseurl();
+}
+
+/**
+ * @brief Return absolute URL for given $path.
+ *
+ * @param string $path
+ *
+ * @return string
+ */
+function absurl($path) {
+	if (strpos($path, '/') === 0)
+		return z_path() . $path;
+
+	return $path;
+}
+
+function os_mkdir($path, $mode = 0777, $recursive = false) {
+	$oldumask = @umask(0);
+	$result   = @mkdir($path, $mode, $recursive);
+	@umask($oldumask);
+	return $result;
+}
+
+
+/**
+ * @brief Recursively delete a directory.
+ *
+ * @param string $path
+ * @return boolean
+ */
+function rrmdir($path) {
+	if (is_dir($path) === true) {
+		$dir_entries = scandir($path);
+		if (is_array($dir_entries)) {
+			$files = array_diff($dir_entries, ['.', '..']);
+			foreach ($files as $file) {
+				rrmdir(realpath($path) . '/' . $file);
+			}
+		}
+		return rmdir($path);
+	}
+	elseif (is_file($path) === true) {
+		return unlink($path);
+	}
+
+	return false;
+}
+
+
+/**
+ * @brief Function to check if request was an AJAX (xmlhttprequest) request.
+ *
+ * @return boolean
+ */
+function is_ajax() {
+	return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
+}
+
+
+/**
+ * Primarily involved with database upgrade, but also sets the
+ * base url for use in cmdline programs which don't have
+ * $_SERVER variables, and synchronising the state of installed plugins.
+ */
+function check_config() {
+
+	$saved = get_config('system', 'urlverify');
+	if (!$saved)
+		set_config('system', 'urlverify', bin2hex(z_root()));
+
+	if (($saved) && ($saved != bin2hex(z_root()))) {
+		// our URL changed. Do something.
+
+		$oldurl = hex2bin($saved);
+		logger('Baseurl changed!');
+
+		$oldhost = substr($oldurl, strpos($oldurl, '//') + 2);
+		$host    = substr(z_root(), strpos(z_root(), '//') + 2);
+
+		$is_ip_addr  = ((preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $host)) ? true : false);
+		$was_ip_addr = ((preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $oldhost)) ? true : false);
+		// only change the url to an ip address if it was already an ip and not a dns name
+		if ((!$is_ip_addr) || ($is_ip_addr && $was_ip_addr)) {
+			fix_system_urls($oldurl, z_root());
+			set_config('system', 'urlverify', bin2hex(z_root()));
+		}
+		else
+			logger('Attempt to change baseurl from a DNS name to an IP address was refused.');
+	}
+
+	// This will actually set the url to the one stored in .htconfig, and ignore what
+	// we're passing - unless we are installing and it has never been set.
+
+	App::set_baseurl(z_root());
+
+	// Make sure each site has a system channel.  This is now created on install
+	// so we just need to keep this around a couple of weeks until the hubs that
+	// already exist have one
+	$syschan_exists = get_sys_channel();
+	if (!$syschan_exists)
+		create_sys_channel();
+
+	new DB_Upgrade(DB_UPDATE_VERSION);
+
+	plugins_sync();
+
+	load_hooks();
+
+	check_for_new_perms();
+
+	check_cron_broken();
+
+}
+
+
+function fix_system_urls($oldurl, $newurl) {
+
+	logger('fix_system_urls: renaming ' . $oldurl . '  to ' . $newurl);
+
+	// Basically a site rename, but this can happen if you change from http to https for instance - even if the site name didn't change
+	// This should fix URL changes on our site, but other sites will end up with orphan hublocs which they will try to contact and will
+	// cause wasted communications.
+	// What we need to do after fixing this up is to send a revocation of the old URL to every other site that we communicate with so
+	// that they can clean up their hubloc tables (this includes directories).
+	// It's a very expensive operation so you don't want to have to do it often or after your site gets to be large.
+
+	$r = q("select xchan.*, hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash where hubloc_url like '%s' and hubloc_network = 'zot6'",
+		dbesc($oldurl . '%')
+	);
+
+	if ($r) {
+		foreach ($r as $rv) {
+			$channel_address = substr($rv['hubloc_addr'], 0, strpos($rv['hubloc_addr'], '@'));
+
+			// get the associated channel. If we don't have a local channel, do nothing for this entry.
+
+			$c = q("select * from channel where channel_hash = '%s' limit 1",
+				dbesc($rv['hubloc_hash'])
+			);
+			if (!$c)
+				continue;
+
+			$parsed = @parse_url($newurl);
+			if (!$parsed)
+				continue;
+			$newhost = $parsed['host'];
+
+			// sometimes parse_url returns unexpected results.
+
+			if (strpos($newhost, '/') !== false)
+				$newhost = substr($newhost, 0, strpos($newhost, '/'));
+
+			$rhs = $newhost . (($parsed['port']) ? ':' . $parsed['port'] : '');
+
+			// paths aren't going to work. You have to be at the (sub)domain root
+			// . (($parsed['path']) ? $parsed['path'] : '');
+
+			// The xchan_url might point to another nomadic identity clone
+
+			$replace_xchan_url = ((strpos($rv['xchan_url'], $oldurl) !== false) ? true : false);
+
+			q("update xchan set xchan_addr = '%s', xchan_url = '%s', xchan_connurl = '%s', xchan_follow = '%s', xchan_connpage = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_date = '%s' where xchan_hash = '%s'",
+				dbesc($channel_address . '@' . $rhs),
+				dbesc(($replace_xchan_url) ? str_replace($oldurl, $newurl, $rv['xchan_url']) : $rv['xchan_url']),
+				dbesc(str_replace($oldurl, $newurl, $rv['xchan_connurl'])),
+				dbesc(str_replace($oldurl, $newurl, $rv['xchan_follow'])),
+				dbesc(str_replace($oldurl, $newurl, $rv['xchan_connpage'])),
+				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_l'])),
+				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_m'])),
+				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_s'])),
+				dbesc(datetime_convert()),
+				dbesc($rv['xchan_hash'])
+			);
+
+			q("update hubloc set hubloc_addr = '%s', hubloc_url = '%s', hubloc_id_url = '%s', hubloc_url_sig = '%s', hubloc_site_id = '%s', hubloc_host = '%s', hubloc_callback = '%s' where hubloc_hash = '%s' and hubloc_url = '%s'",
+				dbesc($channel_address . '@' . $rhs),
+				dbesc($newurl),
+				dbesc(str_replace($oldurl, $newurl, $rv['hubloc_id_url'])),
+				dbesc(Libzot::sign($newurl, $c[0]['channel_prvkey'])),
+				dbesc(Libzot::make_xchan_hash($newurl, Config::Get('system', 'pubkey'))),
+				dbesc($newhost),
+				dbesc($newurl . '/zot'),
+				dbesc($rv['xchan_hash']),
+				dbesc($oldurl)
+			);
+
+			q("update profile set photo = '%s', thumb = '%s' where uid = %d",
+				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_l'])),
+				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_m'])),
+				intval($c[0]['channel_id'])
+			);
+
+			$m = q("select abook_id, abook_instance from abook where abook_instance like '%s' and abook_channel = %d",
+				dbesc('%' . $oldurl . '%'),
+				intval($c[0]['channel_id'])
+			);
+			if ($m) {
+				foreach ($m as $mm) {
+					q("update abook set abook_instance = '%s' where abook_id = %d",
+						dbesc(str_replace($oldurl, $newurl, $mm['abook_instance'])),
+						intval($mm['abook_id'])
+					);
+				}
+			}
+
+			Zotlabs\Daemon\Master::Summon(['Notifier', 'refresh_all', $c[0]['channel_id']]);
+		}
+	}
+
+	// fix links in apps
+
+	$a = q("select id, app_url, app_photo from app where app_url like '%s' OR app_photo like '%s'",
+		dbesc('%' . $oldurl . '%'),
+		dbesc('%' . $oldurl . '%')
+	);
+	if ($a) {
+		foreach ($a as $aa) {
+			q("update app set app_url = '%s', app_photo = '%s' where id = %d",
+				dbesc(str_replace($oldurl, $newurl, $aa['app_url'])),
+				dbesc(str_replace($oldurl, $newurl, $aa['app_photo'])),
+				intval($aa['id'])
+			);
+		}
+	}
+
+	// now replace any remote xchans whose photos are stored locally (which will be most if not all remote xchans)
+
+	$r = q("select * from xchan where xchan_photo_l like '%s'",
+		dbesc($oldurl . '%')
+	);
+
+	if ($r) {
+		foreach ($r as $rv) {
+			q("update xchan set xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s' where xchan_hash = '%s'",
+				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_l'])),
+				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_m'])),
+				dbesc(str_replace($oldurl, $newurl, $rv['xchan_photo_s'])),
+				dbesc($rv['xchan_hash'])
+			);
+		}
+	}
+}
+
+
+/**
+ * @brief Wrapper for adding a login box.
+ *
+ * If $register == true provide a registration link. This will most always depend
+ * on the value of App::$config['system']['register_policy'].
+ * Returns the complete html for inserting into the page
+ *
+ * @param boolean $register (optional) default false
+ * @param string $form_id (optional) default \e main-login
+ * @param boolean $hiddens (optional) default false
+ * @param boolean $login_page (optional) default true
+ * @return string Parsed HTML code.
+ */
+function login($register = false, $form_id = 'main_login', $hiddens = false, $login_page = true) {
+
+	$o   = '';
+	$reg = null;
+
+	// Here's the current description of how the register link works (2018-05-15)
+
+	// Register links are enabled on the site home page and login page and navbar.
+	// They are not shown by default on other pages which may require login.
+
+	// If the register link is enabled and registration is closed, the request is directed
+	// to /pubsites. If registration is allowed, /register is the default destination
+
+	// system.register_link can over-ride the default behaviour and redirect to an arbitrary
+	// webpage for paid/custom or organisational registrations, regardless of whether
+	// registration is allowed.
+
+	// system.register_link may or may not be the same destination as system.sellpage
+
+	// system.sellpage is the destination linked from the /pubsites page on other sites. If
+	// system.sellpage is not set, the 'register' link in /pubsites will go to 'register' on your
+	// site.
+
+	// If system.register_link is set to the word 'none', no registration link will be shown on
+	// your site.
+
+
+	$register_policy = get_config('system', 'register_policy');
+
+	$reglink = get_config('system', 'register_link', z_root() . '/' . ((intval($register_policy) === REGISTER_CLOSED) ? 'pubsites' : 'register'));
+
+	if ($reglink !== 'none') {
+		$reg = [
+			'title' => t('Create an account to access services and applications'),
+			'desc'  => t('Register'),
+			'link'  => $reglink
+		];
+	}
+
+	$dest_url = z_root() . '/' . App::$query_string;
+
+	if (local_channel()) {
+		$tpl = get_markup_template("logout.tpl");
+	}
+	else {
+		$tpl = get_markup_template("login.tpl");
+		if (strlen(App::$query_string))
+			$_SESSION['login_return_url'] = App::$query_string;
+	}
+
+	$email_required = get_config('system', 'verify_email');
+	$lname_label    = (($email_required) ? t('Email or nickname') : t('Nickname'));
+
+	$o .= replace_macros($tpl, [
+		'$dest_url'     => $dest_url,
+		'$login_page'   => $login_page,
+		'$logout'       => t('Logout'),
+		'$login'        => t('Login'),
+		'$remote_login' => t('Remote Authentication'),
+		'$form_id'      => $form_id,
+		'$lname'        => [$form_id . '_username', $lname_label],
+		'$lpassword'    => [$form_id . '_password', t('Password')],
+		'$remember_me'  => [$form_id . '_remember', t('Remember me'), '', '', [t('No'), t('Yes')]],
+		'$hiddens'      => $hiddens,
+		'$register'     => $reg,
+		'$lostpass'     => t('Forgot your password?'),
+		'$lostlink'     => (($email_required) ? t('Password Reset') : ''),
+	]);
+
+	/**
+	 * @hooks login_hook
+	 *   Called when generating the login form.
+	 *   * \e string with parsed HTML
+	 */
+	call_hooks('login_hook', $o);
+
+	return $o;
+}
+
+
+/**
+ * @brief Used to end the current process, after saving session state.
+ */
+function killme() {
+
+	register_shutdown_function('shutdown');
+	exit;
+}
+
+/**
+ * @brief Redirect to another URL and terminate this process.
+ */
+function goaway($s) {
+	header("Location: $s");
+	killme();
+}
+
+function shutdown() {
+
+}
+
+/**
+ * @brief Returns the entity id of locally logged in account or false.
+ *
+ * Returns numeric account_id if authenticated or 0. It is possible to be
+ * authenticated and not connected to a channel.
+ *
+ * @return int|bool account_id or false
+ */
+function get_account_id() {
+
+	if (isset($_SESSION['account_id']))
+		return intval($_SESSION['account_id']);
+
+	if (App::$account)
+		return intval(App::$account['account_id']);
+
+	return false;
+}
+
+/**
+ * @brief Returns the entity id (channel_id) of locally logged in channel or false.
+ *
+ * Returns authenticated numeric channel_id if authenticated and connected to
+ * a channel or 0. Sometimes referred to as $uid in the code.
+ *
+ * Before 2.1 this function was called local_user().
+ *
+ * @return int|bool channel_id or false
+ * @since 2.1
+ */
+function local_channel() {
+	if (session_id()
+		&& array_key_exists('authenticated', $_SESSION) && $_SESSION['authenticated']
+		&& array_key_exists('uid', $_SESSION) && intval($_SESSION['uid']))
+		return intval($_SESSION['uid']);
+
+	return false;
+}
+
+/**
+ * @brief Returns a xchan_hash (visitor_id) of remote authenticated visitor
+ * or false.
+ *
+ * Returns authenticated string hash of Red global identifier (xchan_hash), if
+ * authenticated via remote auth, or an empty string.
+ *
+ * Before 2.1 this function was called remote_user().
+ *
+ * @return string|bool visitor_id or false
+ * @since 2.1
+ */
+function remote_channel() {
+	if (session_id()
+		&& array_key_exists('authenticated', $_SESSION) && $_SESSION['authenticated']
+		&& array_key_exists('visitor_id', $_SESSION) && $_SESSION['visitor_id'])
+		return $_SESSION['visitor_id'];
+
+	return false;
+}
+
+
+function can_view_public_stream() {
+
+	if (observer_prohibited(true)) {
+		return false;
+	}
+
+	if (!(intval(get_config('system', 'open_pubstream', 1)))) {
+		if (!get_observer_hash()) {
+			return false;
+		}
+	}
+
+	$net_firehose  = ((get_config('system', 'disable_discover_tab', 1)) ? false : true);
+
+	if (!$net_firehose) {
+		return false;
+	}
+
+	return true;
+
+}
+
+
+/**
+ * @brief Show an error or alert text on next page load.
+ *
+ * Contents of $s are displayed prominently on the page the next time
+ * a page is loaded. Usually used for errors or alerts.
+ *
+ * For informational text use info().
+ *
+ * @param string $s Text to display
+ */
+function notice($s) {
+
+	/*
+		if(! session_id())
+			return;
+
+		if(! x($_SESSION, 'sysmsg')) $_SESSION['sysmsg'] = array();
+
+		// ignore duplicated error messages which haven't yet been displayed
+		// - typically seen as multiple 'permission denied' messages
+		// as a result of auto-reloading a protected page with &JS=1
+
+		if(in_array($s, $_SESSION['sysmsg']))
+			return;
+
+		if(App::$interactive) {
+			$_SESSION['sysmsg'][] = $s;
+		}
+	*/
+
+	$hash   = get_observer_hash();
+	$sse_id = false;
+
+	if (!$hash) {
+		if (session_id()) {
+			$sse_id = true;
+			$hash   = 'sse_id.' . session_id();
+		}
+		else {
+			return;
+		}
+	}
+
+	$t = get_xconfig($hash, 'sse', 'timestamp', NULL_DATE);
+
+	if (datetime_convert('UTC', 'UTC', $t) < datetime_convert('UTC', 'UTC', '- 30 seconds')) {
+		set_xconfig($hash, 'sse', 'notifications', []);
+	}
+
+	$x = get_xconfig($hash, 'sse', 'notifications');
+
+	if ($x === false)
+		$x = [];
+
+	if (isset($x['notice']) && in_array($s, $x['notice']['notifications']))
+		return;
+
+	if (App::$interactive) {
+		$x['notice']['notifications'][] = $s;
+		set_xconfig($hash, 'sse', 'notifications', $x);
+	}
+
+}
+
+/**
+ * @brief Show an information text on next page load.
+ *
+ * Contents of $s are displayed prominently on the page the next time a page is
+ * loaded. Usually used for information.
+ *
+ * For error and alerts use notice().
+ *
+ * @param string $s Text to display
+ */
+function info($s) {
+
+	/*
+		if(! session_id())
+			return;
+
+		if(! x($_SESSION, 'sysmsg_info'))
+			$_SESSION['sysmsg_info'] = array();
+
+		if(in_array($s, $_SESSION['sysmsg_info']))
+			return;
+
+		if(App::$interactive)
+			$_SESSION['sysmsg_info'][] = $s;
+	*/
+
+	$hash   = get_observer_hash();
+	$sse_id = false;
+
+	if (!$hash) {
+		if (session_id()) {
+			$sse_id = true;
+			$hash   = 'sse_id.' . session_id();
+		}
+		else {
+			return;
+		}
+	}
+
+	$t = get_xconfig($hash, 'sse', 'timestamp', NULL_DATE);
+
+	if (datetime_convert('UTC', 'UTC', $t) < datetime_convert('UTC', 'UTC', '- 30 seconds')) {
+		set_xconfig($hash, 'sse', 'notifications', []);
+	}
+
+	$x = get_xconfig($hash, 'sse', 'notifications');
+
+	if ($x === false)
+		$x = [];
+
+	if (isset($x['info']) && in_array($s, $x['info']['notifications']))
+		return;
+
+	if (App::$interactive) {
+		$x['info']['notifications'][] = $s;
+		set_xconfig($hash, 'sse', 'notifications', $x);
+	}
+
+}
+
+/**
+ * @brief Wrapper around config to limit the text length of an incoming message.
+ *
+ * @return int
+ */
+function get_max_import_size() {
+	return (intval(get_config('system', 'max_import_size')));
+}
+
+
+/**
+ * @brief Wrap calls to proc_close(proc_open()) and call hook
+ * so plugins can take part in process :)
+ *
+ * args:
+ * $cmd program to run
+ *  next args are passed as $cmd command line
+ *
+ * e.g.:
+ * @code{.php}proc_run("ls", "-la", "/tmp");@endcode
+ *
+ * $cmd and string args are surrounded with ""
+ */
+function proc_run() {
+
+	$args = func_get_args();
+
+	if (!count($args))
+		return;
+
+	$args = flatten_array_recursive($args);
+
+	$arr = [
+		'args'    => $args,
+		'run_cmd' => true
+	];
+	/**
+	 * @hooks proc_run
+	 *   Called when invoking PHP sub processes.
+	 *   * \e array \b args
+	 *   * \e boolean \b run_cmd
+	 */
+	call_hooks('proc_run', $arr);
+
+	if (!$arr['run_cmd'])
+		return;
+
+	if (count($args) && $args[0] === 'php') {
+		$args[0] = ((x(App::$config, 'system')) && (x(App::$config['system'], 'php_path')) && (strlen(App::$config['system']['php_path'])) ? App::$config['system']['php_path'] : 'php');
+	}
+
+	$args    = array_map('escapeshellarg', $args);
+	$cmdline = implode(' ', $args);
+
+	if (is_windows()) {
+		$cwd = getcwd();
+		$cmd = "cmd /c start \"title\" /D \"$cwd\" /b $cmdline";
+		proc_close(proc_open($cmd, [], $foo));
+	}
+	else {
+		if (get_config('system', 'use_proc_open'))
+			proc_close(proc_open($cmdline . " &", [], $foo));
+		else
+			exec($cmdline . ' > /dev/null &');
+	}
+}
+
+/**
+ * @brief Checks if we are running on M$ Windows.
+ *
+ * @return bool true if we run on M$ Windows
+ *
+ * It's possible you might be able to run on WAMP or XAMPP, and this
+ * has been accomplished, but is not officially supported. Good luck.
+ *
+ */
+function is_windows() {
+	return ((strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') ? true : false);
+}
+
+/**
+ * @brief Check if current user has admin role.
+ *
+ * Check if the current user has ACCOUNT_ROLE_ADMIN.
+ *
+ * @return bool true if user is an admin
+ */
+function is_site_admin() {
+
+	if (!session_id())
+		return false;
+
+	if (isset($_SESSION['delegate']))
+		return false;
+
+	if (isset($_SESSION['authenticated']) && is_array(App::$account) && (App::$account['account_roles'] & ACCOUNT_ROLE_ADMIN))
+		return true;
+
+	return false;
+}
+
+/**
+ * @brief Check if current user has developer role.
+ *
+ * Check if the current user has ACCOUNT_ROLE_DEVELOPER.
+ *
+ * @return bool true if user is a developer
+ */
+function is_developer() {
+
+	if (!session_id())
+		return false;
+
+	if ((intval($_SESSION['authenticated']))
+		&& (is_array(App::$account))
+		&& (App::$account['account_roles'] & ACCOUNT_ROLE_DEVELOPER))
+		return true;
+
+	return false;
+}
+
+
+function load_contact_links($uid) {
+
+	$ret = [];
+
+	if (!$uid || x(App::$contacts, 'empty'))
+		return;
+
+//	logger('load_contact_links');
+
+	$r = q("SELECT abook_id, abook_flags, abook_my_perms, abook_their_perms, abook_self, xchan_hash, xchan_photo_m, xchan_name, xchan_url, xchan_network from abook left join xchan on abook_xchan = xchan_hash where abook_channel = %d and xchan_deleted = 0",
+		intval($uid)
+	);
+	if ($r) {
+		foreach ($r as $rv) {
+			$ret[$rv['xchan_hash']] = $rv;
+		}
+	}
+	else
+		$ret['empty'] = true;
+
+	App::$contacts = $ret;
+}
+
+
+/**
+ * @brief Returns querystring as string from a mapped array.
+ *
+ * @param array $params mapped array with query parameters
+ * @param string $name of parameter, default null
+ *
+ * @return string
+ */
+function build_querystring($params, $name = null) {
+	$ret = '';
+	foreach ($params as $key => $val) {
+		if (is_array($val)) {
+			if ($name === null) {
+				$ret .= build_querystring($val, $key);
+			}
+			else {
+				$ret .= build_querystring($val, $name . "[$key]");
+			}
+		}
+		else {
+			$val = urlencode($val);
+			if ($name != null) {
+				$ret .= $name . "[$key]" . "=$val&";
+			}
+			else {
+				$ret .= "$key=$val&";
+			}
+		}
+	}
+
+	return $ret;
+}
+
+
+/**
+ * @brief Much better way of dealing with c-style args.
+ */
+function argc() {
+	return App::$argc;
+}
+
+function argv($x) {
+	if (array_key_exists($x, App::$argv))
+		return App::$argv[$x];
+
+	return '';
+}
+
+function dba_timer() {
+	return microtime(true);
+}
+
+/**
+ * @brief Returns xchan_hash from the observer.
+ *
+ * Observer can be a local or remote channel.
+ *
+ * @return string xchan_hash from observer, otherwise empty string if no observer
+ */
+function get_observer_hash() {
+	$observer = App::get_observer();
+	if (is_array($observer))
+		return $observer['xchan_hash'];
+
+	return '';
+}
+
+/**
+ * @brief Returns the complete URL of the current page, e.g.: http(s)://something.com/network
+ *
+ * Taken from http://webcheatsheet.com/php/get_current_page_url.php
+ *
+ * @return string
+ */
+function curPageURL() {
+	$pageURL = 'http';
+	if ($_SERVER["HTTPS"] == "on") {
+		$pageURL .= "s";
+	}
+	$pageURL .= "://";
+	if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
+		$pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];
+	}
+	else {
+		$pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
+	}
+
+	return $pageURL;
+}
+
+/**
+ * @brief Returns a custom navigation by name???
+ *
+ * If no $navname provided load default page['nav']
+ *
+ * @param string $navname
+ *
+ * @return mixed
+ * @todo not fully implemented yet
+ *
+ */
+function get_custom_nav($navname) {
+	if (!$navname)
+		return App::$page['nav'];
+	// load custom nav menu by name here
+}
+
+/**
+ * @brief Loads a page definition file for a module.
+ *
+ * If there is no parsed Comanche template already load a module's pdl file
+ * and parse it with Comanche.
+ *
+ */
+function load_pdl() {
+
+	App::$comanche = new Zotlabs\Render\Comanche();
+
+	if (!count(App::$layout)) {
+
+		$arr = [
+			'module' => App::$module,
+			'layout' => ''
+		];
+
+		/**
+		 * @hooks load_pdl
+		 *   Called when we load a PDL file or description.
+		 *   * \e string \b module
+		 *   * \e string \b layout
+		 */
+		call_hooks('load_pdl', $arr);
+		$layout = $arr['layout'];
+
+		$n = 'mod_' . App::$module . '.pdl';
+		$u = App::$comanche->get_channel_id();
+		$s = '';
+
+		if ($u) {
+			$s = get_pconfig($u, 'system', $n);
+		}
+
+		if (!$s) {
+			$s = $layout;
+		}
+
+		if ((!$s) && (($p = theme_include($n)) != '')) {
+			$s = @file_get_contents($p);
+		}
+		elseif ((!$s) && file_exists('addon/' . App::$module . '/' . $n)) {
+			$s = @file_get_contents('addon/' . App::$module . '/' . $n);
+		}
+
+		$arr = [
+			'module' => App::$module,
+			'layout' => $s
+		];
+
+		call_hooks('alter_pdl', $arr);
+		$s = $arr['layout'];
+
+		if ($s) {
+			App::$comanche->parse($s);
+			App::$pdl = $s;
+		}
+	}
+}
+
+
+function exec_pdl() {
+	if (App::$pdl) {
+		App::$comanche->parse(App::$pdl, 1);
+	}
+}
+
+
+/**
+ * @brief build the page.
+ *
+ * Build the page - now that we have all the components
+ *
+ */
+function construct_page() {
+
+	exec_pdl();
+
+	$comanche = ((count(App::$layout)) ? true : false);
+
+	require_once(theme_include('theme_init.php'));
+
+	$installing = false;
+
+	$uid = ((App::$profile_uid) ? App::$profile_uid : local_channel());
+
+	$navbar = get_config('system', 'navbar', 'default');
+	if ($uid) {
+		$navbar = get_pconfig($uid, 'system', 'navbar', $navbar);
+	}
+
+	if ($comanche && isset(App::$layout['navbar'])) {
+		$navbar = App::$layout['navbar'];
+	}
+
+	if (App::$module == 'setup') {
+		$installing = true;
+	}
+	else {
+		nav($navbar);
+	}
+
+
+	$current_theme = Zotlabs\Render\Theme::current();
+	// logger('current_theme: ' . print_r($current_theme,true));
+	// Zotlabs\Render\Theme::debug();
+
+	if (($p = theme_include($current_theme[0] . '.js')) != '')
+		head_add_js('/' . $p);
+
+	if (($p = theme_include('mod_' . App::$module . '.php')) != '')
+		require_once($p);
+
+	require_once('include/js_strings.php');
+
+	if (x(App::$page, 'template_style'))
+		head_add_css(App::$page['template_style'] . '.css');
+	else
+		head_add_css(((x(App::$page, 'template')) ? App::$page['template'] : 'default') . '.css');
+
+	if (($p = theme_include('mod_' . App::$module . '.css')) != '')
+		head_add_css('mod_' . App::$module . '.css');
+
+	head_add_css(Zotlabs\Render\Theme::url($installing));
+
+	if (($p = theme_include('mod_' . App::$module . '.js')) != '')
+		head_add_js('mod_' . App::$module . '.js');
+
+	App::build_pagehead();
+
+	if (isset(App::$page['pdl_content'])) {
+		App::$page['content'] = App::$comanche->region(App::$page['content']);
+	}
+
+	// Let's say we have a comanche declaration '[region=nav][/region][region=content]$nav $content[/region]'.
+	// The text 'region=' identifies a section of the layout by that name. So what we want to do here is leave
+	// App::$page['nav'] empty and put the default content from App::$page['nav'] and App::$page['section']
+	// into a new region called App::$data['content']. It is presumed that the chosen layout file for this comanche page
+	// has a '<content>' element instead of a '<section>'.
+
+	// This way the Comanche layout can include any existing content, alter the layout by adding stuff around it or changing the
+	// layout completely with a new layout definition, or replace/remove existing content.
+
+	if ($comanche) {
+		$arr = [
+			'module' => App::$module,
+			'layout' => App::$layout
+		];
+		/**
+		 * @hooks construct_page
+		 *   General purpose hook to provide content to certain page regions.
+		 *   Called when constructing the Comanche page.
+		 *   * \e string \b module
+		 *   * \e string \b layout
+		 */
+		call_hooks('construct_page', $arr);
+		App::$layout = $arr['layout'];
+
+
+		foreach (App::$layout as $k => $v) {
+			if ((strpos($k, 'region_') === 0) && strlen($v)) {
+				if (strpos($v, '$region_') !== false) {
+					$v = preg_replace_callback('/\$region_([a-zA-Z0-9]+)/ism', [App::$comanche, 'replace_region'], $v);
+				}
+
+				// And a couple of convenience macros
+				if (strpos($v, '$htmlhead') !== false) {
+					$v = str_replace('$htmlhead', App::$page['htmlhead'], $v);
+				}
+				if (strpos($v, '$nav') !== false) {
+					$v = str_replace('$nav', App::$page['nav'], $v);
+				}
+				if (strpos($v, '$content') !== false) {
+					$v = str_replace('$content', App::$page['content'], $v);
+				}
+
+				App::$page[substr($k, 7)] = $v;
+			}
+		}
+	}
+
+	$page    = App::$page;
+
+	// There's some experimental support for right-to-left text in the view/php/default.php page template.
+	// In v1.9 we started providing direction preference in the per language hstrings.php file
+	// This requires somebody with fluency in a RTL language to make happen
+
+	$page['direction'] = 0; // ((App::$rtl) ? 1 : 0);
+
+	header("Content-type: text/html; charset=utf-8");
+
+	// security headers - see https://securityheaders.io
+
+	if (App::get_scheme() === 'https' && isset(App::$config['system']['transport_security_header']) && intval(App::$config['system']['transport_security_header']) == 1)
+		header("Strict-Transport-Security: max-age=31536000");
+
+	if (isset(App::$config['system']['content_security_policy']) && intval(App::$config['system']['content_security_policy']) == 1) {
+		$cspsettings = [
+			'script-src' => ["'self'", "'unsafe-inline'", "'unsafe-eval'"],
+			'style-src'  => ["'self'", "'unsafe-inline'"],
+			'frame-src'  => ["'self'"]
+		];
+		call_hooks('content_security_policy', $cspsettings);
+
+		// Legitimate CSP directives (cxref: https://content-security-policy.com/)
+		$validcspdirectives = [
+			"default-src", "script-src", "style-src",
+			"img-src", "connect-src", "font-src",
+			"object-src", "media-src", 'frame-src',
+			'sandbox', 'report-uri', 'child-src',
+			'form-action', 'frame-ancestors', 'plugin-types'
+		];
+		$cspheader          = "Content-Security-Policy:";
+		foreach ($cspsettings as $cspdirective => $csp) {
+			if (!in_array($cspdirective, $validcspdirectives)) {
+				logger("INVALID CSP DIRECTIVE: " . $cspdirective, LOGGER_DEBUG);
+				continue;
+			}
+			$cspsettingsarray = array_unique($cspsettings[$cspdirective]);
+			$cspsetpolicy     = implode(' ', $cspsettingsarray);
+			if ($cspsetpolicy) {
+				$cspheader .= " " . $cspdirective . " " . $cspsetpolicy . ";";
+			}
+		}
+		header($cspheader);
+	}
+
+	if (isset(App::$config['system']['x_security_headers'])) {
+		header("X-Frame-Options: SAMEORIGIN");
+		header("X-Xss-Protection: 1; mode=block;");
+		header("X-Content-Type-Options: nosniff");
+	}
+
+	if (isset(App::$config['system']['perm_policy_header']) && App::$config['system']['perm_policy_header']) {
+		header("Permissions-Policy: " . App::$config['system']['perm_policy_header']);
+	}
+	else {
+		// opt-out this site from federated browser surveillance
+		header("Permissions-Policy: interest-cohort=()");
+	}
+
+	if (isset(App::$config['system']['public_key_pins'])) {
+		header("Public-Key-Pins: " . App::$config['system']['public_key_pins']);
+	}
+
+	require_once(theme_include(
+		((x(App::$page, 'template')) ? App::$page['template'] : 'default') . '.php')
+	);
+}
+
+/**
+ * @brief Returns appplication root directory.
+ *
+ * @return string
+ */
+function appdirpath() {
+	return dirname(__FILE__);
+}
+
+/**
+ * @brief Set a pageicon.
+ *
+ * @param string $icon
+ */
+function head_set_icon($icon) {
+
+	App::$data['pageicon'] = $icon;
+
+}
+
+/**
+ * @brief Get the pageicon.
+ *
+ * @return string absolut path to pageicon
+ */
+function head_get_icon() {
+
+	$icon = App::$data['pageicon'];
+	if (!strpos($icon, '://'))
+		$icon = z_root() . $icon;
+
+	return $icon;
+}
+
+/**
+ * @brief Return the Realm of the directory.
+ *
+ * @return string
+ */
+function get_directory_realm() {
+	if ($x = get_config('system', 'directory_realm'))
+		return $x;
+
+	return DIRECTORY_REALM;
+}
+
+/**
+ * @brief Return the primary directory server.
+ *
+ * @return string
+ */
+function get_directory_primary() {
+
+	$dirmode = intval(get_config('system', 'directory_mode'));
+
+	if ($dirmode == DIRECTORY_MODE_STANDALONE || $dirmode == DIRECTORY_MODE_PRIMARY) {
+		return z_root();
+	}
+
+	if ($x = get_config('system', 'directory_primary'))
+		return $x;
+
+	return DIRECTORY_FALLBACK_MASTER;
+}
+
+
+/**
+ * @brief Return relative date of last completed poller execution.
+ *
+ * @return string relative date of last completed poller execution
+ */
+function get_poller_runtime() {
+	$t = get_config('system', 'lastpoll');
+
+	return relative_date($t);
+}
+
+function z_get_upload_dir() {
+	$upload_dir = get_config('system', 'uploaddir');
+	if (!$upload_dir)
+		$upload_dir = ini_get('upload_tmp_dir');
+	if (!$upload_dir)
+		$upload_dir = sys_get_temp_dir();
+
+	return $upload_dir;
+}
+
+function z_get_temp_dir() {
+	$temp_dir = get_config('system', 'tempdir');
+	if (!$temp_dir)
+		$temp_dir = sys_get_temp_dir();
+
+	return $temp_dir;
+}
+
+
+/**
+ * @brief Check if server certificate is valid.
+ *
+ * Notify admin if not.
+ */
+function z_check_cert() {
+	if (strpos(z_root(), 'https://') !== false) {
+		$x = z_fetch_url(z_root() . '/siteinfo.json');
+		if (!$x['success']) {
+			$recurse = 0;
+			$y       = z_fetch_url(z_root() . '/siteinfo.json', false, $recurse, ['novalidate' => true]);
+			if ($y['success'])
+				cert_bad_email();
+		}
+	}
+}
+
+
+/**
+ * @brief Send email to admin if server has an invalid certificate.
+ *
+ * If a hub is available over https it must have a publicly valid certificate.
+ */
+function cert_bad_email() {
+	return z_mail(
+		[
+			'toEmail'        => App::$config['system']['admin_email'],
+			'messageSubject' => sprintf(t('[$Projectname] Website SSL error for %s'), App::get_hostname()),
+			'textVersion'    => replace_macros(get_intltext_template('cert_bad_eml.tpl'),
+				[
+					'$sitename' => App::$config['system']['sitename'],
+					'$siteurl'  => z_root(),
+					'$error'    => t('Website SSL certificate is not valid. Please correct.')
+				]
+			)
+		]
+	);
+
+}
+
+
+function check_for_new_perms() {
+
+	// Do not execute if we are in the middle of a git update and the relevant versions don't match
+
+	if (Permissions::version() != PermissionRoles::version())
+		return;
+
+	$pregistered = get_config('system', 'perms');
+
+	$pcurrent = array_keys(Permissions::Perms());
+
+	if (!$pregistered) {
+		set_config('system', 'perms', $pcurrent);
+		return;
+	}
+
+	$found_new_perm = false;
+
+	foreach ($pcurrent as $p) {
+		if (!in_array($p, $pregistered)) {
+
+			$found_new_perm = true;
+			// for all channels
+			$c = q("select channel_id from channel where true");
+			if ($c) {
+				foreach ($c as $cc) {
+					// get the permission role
+					$r = q("select v from pconfig where uid = %d and cat = 'system' and k = 'permissions_role'",
+						intval($cc['channel_id'])
+					);
+					if ($r) {
+						// get a list of connections
+						$x = q("select abook_xchan from abook where abook_channel = %d and abook_self = 0",
+							intval($cc['channel_id'])
+						);
+						// get the permissions role details
+						$rp = PermissionRoles::role_perms($r[0]['v']);
+						if ($rp) {
+
+							// for custom permission roles we need to customise how we initiate this new permission
+							if (array_key_exists('role', $rp) && ($rp['role'] === 'custom' || $rp['role'] === '')) {
+								PermissionRoles::new_custom_perms($cc['channel_id'], $p, $x);
+							}
+							else {
+								// set the channel limits if appropriate or 0
+								if (array_key_exists('limits', $rp) && array_key_exists($p, $rp['limits'])) {
+									PermissionLimits::Set($cc['channel_id'], $p, $rp['limits'][$p]);
+								}
+								else {
+									PermissionLimits::Set($cc['channel_id'], $p, 0);
+								}
+
+								$set = ((array_key_exists('perms_connect', $rp) && in_array($p, $rp['perms_connect'])) ? 1 : 0);
+								// foreach connection set to the perms_connect value
+								if ($x) {
+									foreach ($x as $xx) {
+										set_abconfig($cc['channel_id'], $xx['abook_xchan'], 'my_perms', $p, intval($set));
+									}
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+
+	// We should probably call perms_refresh here, but this should get pushed in 24 hours and there is no urgency
+	if ($found_new_perm)
+		set_config('system', 'perms', $pcurrent);
+}
+
+
+/**
+ * @brief Send warnings every 3-5 days if cron is not running.
+ */
+function check_cron_broken() {
+
+	$d = get_config('system', 'lastcron');
+
+	if ((!$d) || ($d < datetime_convert('UTC', 'UTC', 'now - 4 hours'))) {
+		Zotlabs\Daemon\Master::Summon(['Cron']);
+		set_config('system', 'lastcron', datetime_convert());
+	}
+
+	$t = get_config('system', 'lastcroncheck');
+	if (!$t) {
+		// never checked before. Start the timer.
+		set_config('system', 'lastcroncheck', datetime_convert());
+		return;
+	}
+
+	if ($t > datetime_convert('UTC', 'UTC', 'now - 3 days')) {
+		// Wait for 3 days before we do anything so as not to swamp the admin with messages
+		return;
+	}
+
+	set_config('system', 'lastcroncheck', datetime_convert());
+
+	if (($d) && ($d > datetime_convert('UTC', 'UTC', 'now - 3 days'))) {
+		// Scheduled tasks have run successfully in the last 3 days.
+		return;
+	}
+
+	return z_mail(
+		[
+			'toEmail'        => App::$config['system']['admin_email'],
+			'messageSubject' => sprintf(t('[$Projectname] Cron tasks not running on %s'), App::get_hostname()),
+			'textVersion'    => replace_macros(get_intltext_template('cron_bad_eml.tpl'),
+				[
+					'$sitename' => App::$config['system']['sitename'],
+					'$siteurl'  => z_root(),
+					'$error'    => t('Cron/Scheduled tasks not running.'),
+					'$lastdate' => (($d) ? $d : t('never'))
+				]
+			)
+		]
+	);
+}
+
+
+/**
+ * @brief
+ *
+ * @param boolean $allow_account (optional) default false
+ * @return boolean
+ */
+function observer_prohibited($allow_account = false) {
+	if ($allow_account) {
+		return (((get_config('system', 'block_public')) && (!get_account_id()) && (!remote_channel())) ? true : false);
+	}
+	return (((get_config('system', 'block_public')) && (!local_channel()) && (!remote_channel())) ? true : false);
+}