<?php
namespace Zotlabs\Module;

use \Zotlabs\Storage\GitRepo as GitRepo;

/**
 * @file mod/admin.php
 * @brief Hubzilla's admin controller.
 *
 * Controller for the /admin/ area.
 */

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

/**
 * @param App &$a
 */

class Admin extends \Zotlabs\Web\Controller {

	private $sm = null;

	function __construct() {
		$this->sm = new \Zotlabs\Web\SubModule();
	}

	function post(){
		logger('admin_post', LOGGER_DEBUG);
	
		if(! is_site_admin()) {
			return;
		}
	
		// urls
		if (argc() > 1) {
			switch (argv(1)) {
				case 'site':
					$this->admin_page_site_post($a);
					break;
				case 'accounts':
					$this->admin_page_accounts_post($a);
					break;
				case 'channels':
					$this->admin_page_channels_post($a);
					break;
				case 'plugins':
					if (argc() > 2 && argv(2) === 'addrepo') {
						$this->admin_page_plugins_post('addrepo');
						break;
					}
					if (argc() > 2 && argv(2) === 'installrepo') {
						$this->admin_page_plugins_post('installrepo');
						break;
					}
					if (argc() > 2 && argv(2) === 'removerepo') {
						$this->admin_page_plugins_post('removerepo');
						break;
					}
					if (argc() > 2 && argv(2) === 'updaterepo') {
						$this->admin_page_plugins_post('updaterepo');
						break;
					}
					if (argc() > 2 && 
						is_file("addon/" . argv(2) . "/" . argv(2) . ".php")){
							@include_once("addon/" . argv(2) . "/" . argv(2) . ".php");
							if(function_exists(argv(2).'_plugin_admin_post')) {
								$func = argv(2) . '_plugin_admin_post';
								$func($a);
							}
					}
					goaway(z_root() . '/admin/plugins/' . argv(2) );
					break;
				case 'themes':
					$theme = argv(2);
					if (is_file("view/theme/$theme/php/config.php")){
						require_once("view/theme/$theme/php/config.php");
	// fixme add parent theme if derived
						if (function_exists("theme_admin_post")){
							theme_admin_post($a);
						}
					}
					info(t('Theme settings updated.'));
					if(is_ajax()) return;
	
					goaway(z_root() . '/admin/themes/' . $theme );
					break;
				case 'logs':
					$this->admin_page_logs_post($a);
					break;
				case 'features':
					$this->admin_page_features_post($a);
					break;
				case 'dbsync':
					$this->admin_page_dbsync_post($a);
					break;
				case 'profs':
					$this->admin_page_profs_post($a);
					break;

				default:
					$this->sm->call('post');
					break;
			}
		}
	
		goaway(z_root() . '/admin' );
	}
	
	/**
	 * @param App &$a
	 * @return string
	 */
	function get() {
	
		logger('admin_content', LOGGER_DEBUG);
	
		if(! is_site_admin()) {
			return login(false);
		}
	
	
		/*
		 * Page content
		 */
		$o = '';
	
		// urls
		if (argc() > 1){
			switch (argv(1)) {
				case 'site':
					$o = $this->admin_page_site($a);
					break;
				case 'accounts':
					$o = $this->admin_page_accounts($a);
					break;
				case 'channels':
					$o = $this->admin_page_channels($a);
					break;
				case 'themes':
					$o = $this->admin_page_themes($a);
					break;
				case 'features':
					$o = $this->admin_page_features($a);
					break;
				case 'logs':
					$o = $this->admin_page_logs($a);
					break;
				case 'dbsync':
					$o = $this->admin_page_dbsync($a);
					break;
				case 'profs':
					$o = $this->admin_page_profs($a);
					break;
				case 'queue':
					$o = $this->admin_page_queue($a);
					break;
				default:
					$o = $this->sm->call('get');
					if($o === false) {
						notice( t('Item not found.') );
					}
					break;
			}
		}
		else {
			$o = $this->admin_page_summary($a);
		}
	
		if(is_ajax()) {
			echo $o; 
			killme();
			return '';
		}
		else {
			return $o;
		}
	}
	
	
	/**
	 * @brief Returns content for Admin Summary Page.
	 *
	 * @param App &$a
	 * @return string HTML from parsed admin_summary.tpl
	 */
	function admin_page_summary(&$a) {
	
		// list total user accounts, expirations etc.
		$accounts = array();
		$r = q("SELECT COUNT(*) AS total, COUNT(CASE WHEN account_expires > %s THEN 1 ELSE NULL END) AS expiring, COUNT(CASE WHEN account_expires < %s AND account_expires != '%s' THEN 1 ELSE NULL END) AS expired, COUNT(CASE WHEN (account_flags & %d)>0 THEN 1 ELSE NULL END) AS blocked FROM account",
			db_utcnow(),
			db_utcnow(),
			dbesc(NULL_DATE),
			intval(ACCOUNT_BLOCKED)
		);
		if ($r) {
			$accounts['total']    = array('label' => t('# Accounts'), 'val' => $r[0]['total']);
			$accounts['blocked']  = array('label' => t('# blocked accounts'), 'val' => $r[0]['blocked']);
			$accounts['expired']  = array('label' => t('# expired accounts'), 'val' => $r[0]['expired']);
			$accounts['expiring'] = array('label' => t('# expiring accounts'), 'val' => $r[0]['expiring']);
		}
	
		// pending registrations
		$r = q("SELECT COUNT(id) AS `count` FROM `register` WHERE `uid` != '0'");
		$pending = $r[0]['count'];
	
		// available channels, primary and clones
		$channels = array();
		$r = q("SELECT COUNT(*) AS total, COUNT(CASE WHEN channel_primary = 1 THEN 1 ELSE NULL END) AS main, COUNT(CASE WHEN channel_primary = 0 THEN 1 ELSE NULL END) AS clones FROM channel WHERE channel_removed = 0");
		if ($r) {
			$channels['total']  = array('label' => t('# Channels'), 'val' => $r[0]['total']);
			$channels['main']   = array('label' => t('# primary'), 'val' => $r[0]['main']);
			$channels['clones'] = array('label' => t('# clones'), 'val' => $r[0]['clones']);
		}
	
		// We can do better, but this is a quick queue status
		$r = q("SELECT COUNT(outq_delivered) AS total FROM outq WHERE outq_delivered = 0");
		$queue = (($r) ? $r[0]['total'] : 0);
		$queues = array( 'label' => t('Message queues'), 'queue' => $queue );
	
		// If no plugins active return 0, otherwise list of plugin names
		$plugins = (count(\App::$plugins) == 0) ? count(\App::$plugins) : \App::$plugins;
	
		// Could be extended to provide also other alerts to the admin
		$alertmsg = '';
		// annoy admin about upcoming unsupported PHP version
		if (version_compare(PHP_VERSION, '5.4', '<')) {
			$alertmsg = 'Your PHP version ' . PHP_VERSION . ' will not be supported with the next major release of $Projectname. You are strongly urged to upgrade to a current version.'
				. '<br>PHP 5.3 has reached its <a href="http://php.net/eol.php" class="alert-link">End of Life (EOL)</a> in August 2014.'
				. ' A list about current PHP versions can be found <a href="http://php.net/supported-versions.php" class="alert-link">here</a>.';
		}

		$vmaster = get_repository_version('master');
		$vdev = get_repository_version('dev');

		$upgrade = ((version_compare(STD_VERSION,$vmaster) < 0) ? t('Your software should be updated') : '');


		$t = get_markup_template('admin_summary.tpl');
		return replace_macros($t, array(
			'$title' => t('Administration'),
			'$page' => t('Summary'),
			'$adminalertmsg' => $alertmsg,
			'$queues'   => $queues,
			'$accounts' => array( t('Registered accounts'), $accounts),
			'$pending'  => array( t('Pending registrations'), $pending),
			'$channels' => array( t('Registered channels'), $channels),
			'$plugins'  => array( t('Active plugins'), $plugins ),
			'$version'  => array( t('Version'), STD_VERSION),
			'$vmaster'  => array( t('Repository version (master)'), $vmaster),
			'$vdev'     => array( t('Repository version (dev)'), $vdev),
			'$upgrade'  => $upgrade,
			'$build' => get_config('system', 'db_version')
		));
	}
	
	
	/**
	 * @brief POST handler for Admin Site Page.
	 *
	 * @param App &$a
	 */
	function admin_page_site_post(&$a){
		if (!x($_POST, 'page_site')){
			return;
		}
	
		check_form_security_token_redirectOnErr('/admin/site', 'admin_site');
	
		$sitename 			=	((x($_POST,'sitename'))			? notags(trim($_POST['sitename']))			: '');
		$server_role 		=	((x($_POST,'server_role'))		? notags(trim($_POST['server_role']))		: 'standard');

		$banner				=	((x($_POST,'banner'))      		? trim($_POST['banner'])				: false);
		$admininfo			=	((x($_POST,'admininfo'))		? trim($_POST['admininfo'])				: false);
		$language			=	((x($_POST,'language'))			? notags(trim($_POST['language']))			: '');
		$theme				=	((x($_POST,'theme'))			? notags(trim($_POST['theme']))				: '');
		$theme_mobile			=	((x($_POST,'theme_mobile'))		? notags(trim($_POST['theme_mobile']))			: '');
	//	$site_channel			=	((x($_POST,'site_channel'))	? notags(trim($_POST['site_channel']))				: '');
		$maximagesize		=	((x($_POST,'maximagesize'))		? intval(trim($_POST['maximagesize']))				:  0);
	
		$register_policy	=	((x($_POST,'register_policy'))	? intval(trim($_POST['register_policy']))	:  0);
		
		$access_policy	=	((x($_POST,'access_policy'))	? intval(trim($_POST['access_policy']))	:  0);
		$invite_only        = ((x($_POST,'invite_only'))		? True	: False);
		$abandon_days	    =	((x($_POST,'abandon_days'))	    ? intval(trim($_POST['abandon_days']))	    :  0);
	
		$register_text		=	((x($_POST,'register_text'))	? notags(trim($_POST['register_text']))		: '');
		$frontpage		    =	((x($_POST,'frontpage'))	? notags(trim($_POST['frontpage']))		: '');
		$mirror_frontpage   =	((x($_POST,'mirror_frontpage'))	? intval(trim($_POST['mirror_frontpage']))		: 0);
		$directory_server   =   ((x($_POST,'directory_server')) ? trim($_POST['directory_server']) : '');
		$allowed_sites        = ((x($_POST,'allowed_sites'))	? notags(trim($_POST['allowed_sites']))		: '');
		$force_publish        = ((x($_POST,'publish_all'))		? True	: False);
		$disable_discover_tab = ((x($_POST,'disable_discover_tab'))		? False	:	True);
		$login_on_homepage    = ((x($_POST,'login_on_homepage'))		? True	:	False);
		$enable_context_help    = ((x($_POST,'enable_context_help'))		? True	:	False);
		$global_directory     = ((x($_POST,'directory_submit_url'))	? notags(trim($_POST['directory_submit_url']))	: '');
		$no_community_page    = !((x($_POST,'no_community_page'))	? True	:	False);
		$default_expire_days  = ((array_key_exists('default_expire_days',$_POST)) ? intval($_POST['default_expire_days']) : 0);
	
		$verifyssl         = ((x($_POST,'verifyssl'))        ? True : False);
		$proxyuser         = ((x($_POST,'proxyuser'))        ? notags(trim($_POST['proxyuser']))  : '');
		$proxy             = ((x($_POST,'proxy'))            ? notags(trim($_POST['proxy']))      : '');
		$timeout           = ((x($_POST,'timeout'))          ? intval(trim($_POST['timeout']))    : 60);
		$delivery_interval = ((x($_POST,'delivery_interval'))? intval(trim($_POST['delivery_interval'])) : 0);
		$delivery_batch_count = ((x($_POST,'delivery_batch_count') && $_POST['delivery_batch_count'] > 0)? intval(trim($_POST['delivery_batch_count'])) : 1);
		$poll_interval     = ((x($_POST,'poll_interval'))    ? intval(trim($_POST['poll_interval'])) : 0);
		$maxloadavg        = ((x($_POST,'maxloadavg'))       ? intval(trim($_POST['maxloadavg'])) : 50);
		$feed_contacts     = ((x($_POST,'feed_contacts'))    ? intval($_POST['feed_contacts'])    : 0);
		$verify_email      = ((x($_POST,'verify_email'))     ? 1 : 0);
	

		set_config('system', 'server_role', $server_role);
		set_config('system', 'feed_contacts', $feed_contacts);
		set_config('system', 'delivery_interval', $delivery_interval);
		set_config('system', 'delivery_batch_count', $delivery_batch_count);
		set_config('system', 'poll_interval', $poll_interval);
		set_config('system', 'maxloadavg', $maxloadavg);
		set_config('system', 'frontpage', $frontpage);
		set_config('system', 'mirror_frontpage', $mirror_frontpage);
		set_config('system', 'sitename', $sitename);
		set_config('system', 'login_on_homepage', $login_on_homepage);
		set_config('system', 'enable_context_help', $enable_context_help);
		set_config('system', 'verify_email', $verify_email);
		set_config('system', 'default_expire_days', $default_expire_days);
	
		if($directory_server)
			set_config('system','directory_server',$directory_server);
	
		if ($banner == '') {
			del_config('system', 'banner');
		} else {
			set_config('system', 'banner', $banner);
		}
	
		if ($admininfo == ''){
			del_config('system', 'admininfo');
		} else {
			require_once('include/text.php');
			linkify_tags($a, $admininfo, local_channel());
			set_config('system', 'admininfo', $admininfo);
		}
		set_config('system', 'language', $language);
		set_config('system', 'theme', $theme);
		if ( $theme_mobile === '---' ) {
			del_config('system', 'mobile_theme');
		} else {
			set_config('system', 'mobile_theme', $theme_mobile);
		}
	//	set_config('system','site_channel', $site_channel);
		set_config('system','maximagesize', $maximagesize);
	
		set_config('system','register_policy', $register_policy);
		set_config('system','invitation_only', $invite_only);	
		set_config('system','access_policy', $access_policy);
		set_config('system','account_abandon_days', $abandon_days);
		set_config('system','register_text', $register_text);
		set_config('system','allowed_sites', $allowed_sites);
		set_config('system','publish_all', $force_publish);
		set_config('system','disable_discover_tab', $disable_discover_tab);
		if ($global_directory == '') {
			del_config('system', 'directory_submit_url');
		} else {
			set_config('system', 'directory_submit_url', $global_directory);
		}
	
		set_config('system','no_community_page', $no_community_page);
		set_config('system','no_utf', $no_utf);
		set_config('system','verifyssl', $verifyssl);
		set_config('system','proxyuser', $proxyuser);
		set_config('system','proxy', $proxy);
		set_config('system','curl_timeout', $timeout);
	
		info( t('Site settings updated.') . EOL);
		goaway(z_root() . '/admin/site' );
	}
	
	/**
	 * @brief Admin page site.
	 *
	 * @param  App $a
	 * @return string
	 */
	function admin_page_site(&$a) {
	
		/* Installed langs */
		$lang_choices = array();
		$langs = glob('view/*/hstrings.php');
	
		if(is_array($langs) && count($langs)) {
			if(! in_array('view/en/hstrings.php',$langs))
				$langs[] = 'view/en/';
			asort($langs);
			foreach($langs as $l) {
				$t = explode("/",$l);
				$lang_choices[$t[1]] = $t[1];
			}
		}
	
		/* Installed themes */
		$theme_choices_mobile["---"] = t("Default");
		$theme_choices = array();
		$files = glob('view/theme/*');
		if($files) {
			foreach($files as $file) {
				$vars = '';
				$f = basename($file);
				if (file_exists($file . '/library'))
					continue;
				if (file_exists($file . '/mobile'))
					$vars = t('mobile');
				if (file_exists($file . '/experimental'))
					$vars .= t('experimental');
				if (file_exists($file . '/unsupported'))
					$vars .= t('unsupported');
				if ($vars) {
					$theme_choices[$f] = $f . ' (' . $vars . ')';
					$theme_choices_mobile[$f] = $f . ' (' . $vars . ')';
				}
				else {
					$theme_choices[$f] = $f;
					$theme_choices_mobile[$f] = $f;
				}
			}
		}
	
		$dir_choices = null;
		$dirmode = get_config('system','directory_mode');
		$realm = get_directory_realm();
	
		// directory server should not be set or settable unless we are a directory client
	
		if($dirmode == DIRECTORY_MODE_NORMAL) {
			$x = q("select site_url from site where site_flags in (%d,%d) and site_realm = '%s'",
				intval(DIRECTORY_MODE_SECONDARY),
				intval(DIRECTORY_MODE_PRIMARY),
				dbesc($realm)
			);
			if($x) {
				$dir_choices = array();
				foreach($x as $xx) {
					$dir_choices[$xx['site_url']] = $xx['site_url'];
				}
			}
		}
	
		/* Banner */
	
		$banner = get_config('system', 'banner');
		if($banner === false) 
			$banner = get_config('system','sitename');
	
		$banner = htmlspecialchars($banner);
	
		/* Admin Info */
		$admininfo = get_config('system', 'admininfo');
	
		/* Register policy */
		$register_choices = Array(
			REGISTER_CLOSED  => t("No"),
			REGISTER_APPROVE => t("Yes - with approval"),
			REGISTER_OPEN    => t("Yes")
		);
	
		/* Acess policy */
		$access_choices = Array(
			ACCESS_PRIVATE => t("My site is not a public server"),
			ACCESS_PAID => t("My site has paid access only"),
			ACCESS_FREE => t("My site has free access only"),
			ACCESS_TIERED => t("My site offers free accounts with optional paid upgrades")
		);
	
	//	$ssl_choices = array(
	//		SSL_POLICY_NONE     => t("No SSL policy, links will track page SSL state"),
	//		SSL_POLICY_FULL     => t("Force all links to use SSL")
	//	);
	
		$discover_tab = get_config('system','disable_discover_tab');
		// $disable public streams by default
		if($discover_tab === false)
			$discover_tab = 1;
		// now invert the logic for the setting.
		$discover_tab = (1 - $discover_tab);
	
		$server_roles = [
			'basic'    => t('Basic/Minimal Social Networking'),
			'standard' => t('Standard Configuration (default)'),
			'pro'      => t('Professional')
		];

	
		$homelogin = get_config('system','login_on_homepage');
		$enable_context_help = get_config('system','enable_context_help');
	
		$t = get_markup_template("admin_site.tpl");
		return replace_macros($t, array(
			'$title' => t('Administration'),
			'$page' => t('Site'),
			'$submit' => t('Submit'),
			'$registration' => t('Registration'),
			'$upload' => t('File upload'),
			'$corporate' => t('Policies'),
			'$advanced' => t('Advanced'),
	
			'$baseurl' => z_root(),
			// name, label, value, help string, extra data...
			'$sitename' 		=> array('sitename', t("Site name"), htmlspecialchars(get_config('system','sitename'), ENT_QUOTES, 'UTF-8'),''),

			'$server_role' 		=> array('server_role', t("Server Configuration/Role"), get_config('system','server_role'),'',$server_roles),

			'$banner'			=> array('banner', t("Banner/Logo"), $banner, ""),
			'$admininfo'		=> array('admininfo', t("Administrator Information"), $admininfo, t("Contact information for site administrators.  Displayed on siteinfo page.  BBCode can be used here")),
			'$language' 		=> array('language', t("System language"), get_config('system','language'), "", $lang_choices),
			'$theme' 			=> array('theme', t("System theme"), get_config('system','theme'), t("Default system theme - may be over-ridden by user profiles - <a href='#' id='cnftheme'>change theme settings</a>"), $theme_choices),
			'$theme_mobile' 	=> array('theme_mobile', t("Mobile system theme"), get_config('system','mobile_theme'), t("Theme for mobile devices"), $theme_choices_mobile),
	//		'$site_channel' 	=> array('site_channel', t("Channel to use for this website's static pages"), get_config('system','site_channel'), t("Site Channel")),
			'$feed_contacts'    => array('feed_contacts', t('Allow Feeds as Connections'),get_config('system','feed_contacts'),t('(Heavy system resource usage)')), 
			'$maximagesize'		=> array('maximagesize', t("Maximum image size"), intval(get_config('system','maximagesize')), t("Maximum size in bytes of uploaded images. Default is 0, which means no limits.")),
			'$register_policy'	=> array('register_policy', t("Does this site allow new member registration?"), get_config('system','register_policy'), "", $register_choices),
			'$invite_only'		=> array('invite_only', t("Invitation only"), get_config('system','invitation_only'), t("Only allow new member registrations with an invitation code. Above register policy must be set to Yes.")),
			'$access_policy'	=> array('access_policy', t("Which best describes the types of account offered by this hub?"), get_config('system','access_policy'), "This is displayed on the public server site list.", $access_choices),
			'$register_text'	=> array('register_text', t("Register text"), htmlspecialchars(get_config('system','register_text'), ENT_QUOTES, 'UTF-8'), t("Will be displayed prominently on the registration page.")),
			'$frontpage'	=> array('frontpage', t("Site homepage to show visitors (default: login box)"), get_config('system','frontpage'), t("example: 'public' to show public stream, 'page/sys/home' to show a system webpage called 'home' or 'include:home.html' to include a file.")),
			'$mirror_frontpage'	=> array('mirror_frontpage', t("Preserve site homepage URL"), get_config('system','mirror_frontpage'), t('Present the site homepage in a frame at the original location instead of redirecting')),
			'$abandon_days'     => array('abandon_days', t('Accounts abandoned after x days'), get_config('system','account_abandon_days'), t('Will not waste system resources polling external sites for abandonded accounts. Enter 0 for no time limit.')),
			'$allowed_sites'	=> array('allowed_sites', t("Allowed friend domains"), get_config('system','allowed_sites'), t("Comma separated list of domains which are allowed to establish friendships with this site. Wildcards are accepted. Empty to allow any domains")),
			'$verify_email'		=> array('verify_email', t("Verify Email Addresses"), get_config('system','verify_email'), t("Check to verify email addresses used in account registration (recommended).")),
			'$force_publish'	=> array('publish_all', t("Force publish"), get_config('system','publish_all'), t("Check to force all profiles on this site to be listed in the site directory.")),
			'$disable_discover_tab'	=> array('disable_discover_tab', t('Import Public Streams'), $discover_tab, t('Import and allow access to public content pulled from other sites. Warning: this content is unmoderated.')),
			'$login_on_homepage'	=> array('login_on_homepage', t("Login on Homepage"),((intval($homelogin) || $homelogin === false) ? 1 : '') , t("Present a login box to visitors on the home page if no other content has been configured.")),
			'$enable_context_help'	=> array('enable_context_help', t("Enable context help"),((intval($enable_context_help) === 1 || $enable_context_help === false) ? 1 : 0) , t("Display contextual help for the current page when the help button is pressed.")),
	
			'$directory_server' => (($dir_choices) ? array('directory_server', t("Directory Server URL"), get_config('system','directory_server'), t("Default directory server"), $dir_choices) : null),
	
			'$proxyuser'		=> array('proxyuser', t("Proxy user"), get_config('system','proxyuser'), ""),
			'$proxy'			=> array('proxy', t("Proxy URL"), get_config('system','proxy'), ""),
			'$timeout'			=> array('timeout', t("Network timeout"), (x(get_config('system','curl_timeout'))?get_config('system','curl_timeout'):60), t("Value is in seconds. Set to 0 for unlimited (not recommended).")),
			'$delivery_interval'			=> array('delivery_interval', t("Delivery interval"), (x(get_config('system','delivery_interval'))?get_config('system','delivery_interval'):2), t("Delay background delivery processes by this many seconds to reduce system load. Recommend: 4-5 for shared hosts, 2-3 for virtual private servers. 0-1 for large dedicated servers.")),
			'$delivery_batch_count' => array('delivery_batch_count', t('Deliveries per process'),(x(get_config('system','delivery_batch_count'))?get_config('system','delivery_batch_count'):1), t("Number of deliveries to attempt in a single operating system process. Adjust if necessary to tune system performance. Recommend: 1-5.")),
			'$poll_interval'			=> array('poll_interval', t("Poll interval"), (x(get_config('system','poll_interval'))?get_config('system','poll_interval'):2), t("Delay background polling processes by this many seconds to reduce system load. If 0, use delivery interval.")),
			'$maxloadavg'			=> array('maxloadavg', t("Maximum Load Average"), ((intval(get_config('system','maxloadavg')) > 0)?get_config('system','maxloadavg'):50), t("Maximum system load before delivery and poll processes are deferred - default 50.")),
			'$default_expire_days' => array('default_expire_days', t('Expiration period in days for imported (grid/network) content'), intval(get_config('system','default_expire_days')), t('0 for no expiration of imported content')),
			'$form_security_token' => get_form_security_token("admin_site"),
		));
	}
	
	
	function admin_page_features_post(&$a) {
	
		check_form_security_token_redirectOnErr('/admin/features', 'admin_manage_features');
	
		logger('postvars: ' . print_r($_POST,true));
	
		$arr = array();
		$features = get_features(false);
	
		foreach($features as $fname => $fdata) {
			foreach(array_slice($fdata,1) as $f) {
				$feature = $f[0];
	
				if(array_key_exists('feature_' . $feature,$_POST))
					$val = intval($_POST['feature_' . $feature]);
				else
					$val = 0;
				set_config('feature',$feature,$val);
	
				if(array_key_exists('featurelock_' . $feature,$_POST))
					set_config('feature_lock',$feature,$val);
				else
					del_config('feature_lock',$feature);
			}
		}
	
		goaway(z_root() . '/admin/features' );
	
	}
	
	function admin_page_features(&$a) {
		
		if((argc() > 1) && (argv(1) === 'features')) {
			$arr = array();
			$features = get_features(false);
	
			foreach($features as $fname => $fdata) {
				$arr[$fname] = array();
				$arr[$fname][0] = $fdata[0];
				foreach(array_slice($fdata,1) as $f) {
	
					$set = get_config('feature',$f[0]);
					if($set === false)
						$set = $f[3];
					$arr[$fname][1][] = array(
						array('feature_' .$f[0],$f[1],$set,$f[2],array(t('Off'),t('On'))),
						array('featurelock_' .$f[0],sprintf( t('Lock feature %s'),$f[1]),(($f[4] !== false) ? 1 : 0),'',array(t('Off'),t('On')))
					);
				}
			}
			
			$tpl = get_markup_template("admin_settings_features.tpl");
			$o .= replace_macros($tpl, array(
				'$form_security_token' => get_form_security_token("admin_manage_features"),
				'$title'	=> t('Manage Additional Features'),
				'$features' => $arr,
				'$submit'   => t('Submit'),
			));
	
			return $o;
		}
	}
	
	
	function admin_page_dbsync(&$a) {
		$o = '';
	
		if(argc() > 3 && intval(argv(3)) && argv(2) === 'mark') {
			set_config('database', 'update_r' . intval(argv(3)), 'success');
			if(intval(get_config('system','db_version')) <= intval(argv(3)))
				set_config('system','db_version',intval(argv(3)) + 1);
			info( t('Update has been marked successful') . EOL);
			goaway(z_root() . '/admin/dbsync');
		}
	
		if(argc() > 2 && intval(argv(2))) {
			require_once('install/update.php');
			$func = 'update_r' . intval(argv(2));
			if(function_exists($func)) {
				$retval = $func();
				if($retval === UPDATE_FAILED) {
					$o .= sprintf( t('Executing %s failed. Check system logs.'), $func); 
				}
				elseif($retval === UPDATE_SUCCESS) {
					$o .= sprintf( t('Update %s was successfully applied.'), $func);
					set_config('database',$func, 'success');
				}
				else
					$o .= sprintf( t('Update %s did not return a status. Unknown if it succeeded.'), $func);
			}
			else
				$o .= sprintf( t('Update function %s could not be found.'), $func);
	
			return $o;
		}
	
		$failed = array();
		$r = q("select * from config where `cat` = 'database' ");
		if(count($r)) {
			foreach($r as $rr) {
				$upd = intval(substr($rr['k'],8));
				if($rr['v'] === 'success')
					continue;
				$failed[] = $upd;
			}
		}
		if(! count($failed))
			return '<div class="generic-content-wrapper-styled"><h3>' . t('No failed updates.') . '</h3></div>';
	
		$o = replace_macros(get_markup_template('failed_updates.tpl'),array(
			'$base' => z_root(),
			'$banner' => t('Failed Updates'),
			'$desc' => '',
			'$mark' => t('Mark success (if update was manually applied)'),
			'$apply' => t('Attempt to execute this update step automatically'),
			'$failed' => $failed
		));
	
		return $o;
	}
	
	function admin_page_queue($a) {
		$o = '';
	
		$expert = ((array_key_exists('expert',$_REQUEST)) ? intval($_REQUEST['expert']) : 0);
	
		if($_REQUEST['drophub']) {
			require_once('hubloc.php');
			hubloc_mark_as_down($_REQUEST['drophub']);
			remove_queue_by_posturl($_REQUEST['drophub']);
		}
	
		if($_REQUEST['emptyhub']) {
			remove_queue_by_posturl($_REQUEST['emptyhub']);
		}
	
		$r = q("select count(outq_posturl) as total, max(outq_priority) as priority, outq_posturl from outq 
			where outq_delivered = 0 group by outq_posturl order by total desc");
	
		for($x = 0; $x < count($r); $x ++) {
			$r[$x]['eurl'] = urlencode($r[$x]['outq_posturl']);
			$r[$x]['connected'] = datetime_convert('UTC',date_default_timezone_get(),$r[$x]['connected'],'Y-m-d');
		}
	
		$o = replace_macros(get_markup_template('admin_queue.tpl'), array(
			'$banner' => t('Queue Statistics'),
			'$numentries' => t('Total Entries'),
			'$priority' => t('Priority'),
			'$desturl' => t('Destination URL'),
			'$nukehub' => t('Mark hub permanently offline'),
			'$empty' => t('Empty queue for this hub'),
			'$lastconn' => t('Last known contact'),
			'$hasentries' => ((count($r)) ? true : false),
			'$entries' => $r,
			'$expert' => $expert
		));
	
		return $o;
	}
	
	/**
	 * @brief Handle POST actions on accounts admin page.
	 *
	 * This function is called when on the admin user/account page the form was
	 * submitted to handle multiple operations at once. If one of the icons next
	 * to an entry are pressed the function admin_page_accounts() will handle this.
	 *
	 * @param App $a
	 */
	function admin_page_accounts_post($a) {
		$pending = ( x($_POST, 'pending') ? $_POST['pending'] : array() );
		$users   = ( x($_POST, 'user')    ? $_POST['user']    : array() );
		$blocked = ( x($_POST, 'blocked') ? $_POST['blocked'] : array() );
	
		check_form_security_token_redirectOnErr('/admin/accounts', 'admin_accounts');
	
		// change to switch structure?
		// account block/unblock button was submitted
		if (x($_POST, 'page_users_block')) {
			for ($i = 0; $i < count($users); $i++) {
				// if account is blocked remove blocked bit-flag, otherwise add blocked bit-flag
				$op = ($blocked[$i]) ? '& ~' : '| ';
				q("UPDATE account SET account_flags = (account_flags $op%d) WHERE account_id = %d",
					intval(ACCOUNT_BLOCKED),
					intval($users[$i])
				);
			}
			notice( sprintf( tt("%s account blocked/unblocked", "%s account blocked/unblocked", count($users)), count($users)) );
		}
		// account delete button was submitted
		if (x($_POST, 'page_accounts_delete')) {
			foreach ($users as $uid){
				account_remove($uid, true, false);
			}
			notice( sprintf( tt("%s account deleted", "%s accounts deleted", count($users)), count($users)) );
		}
		// registration approved button was submitted
		if (x($_POST, 'page_users_approve')) {
			foreach ($pending as $hash) {
				account_allow($hash);
			}
		}
		// registration deny button was submitted
		if (x($_POST, 'page_users_deny')) {
			foreach ($pending as $hash) {
				account_deny($hash);
			}
		}
	
		goaway(z_root() . '/admin/accounts' );
	}
	
	/**
	 * @brief Generate accounts admin page and handle single item operations.
	 *
	 * This function generates the accounts/account admin page and handles the actions
	 * if an icon next to an entry was clicked. If several items were selected and
	 * the form was submitted it is handled by the function admin_page_accounts_post().
	 *
	 * @param App &$a
	 * @return string
	 */
	function admin_page_accounts(&$a){
		if (argc() > 2) {
			$uid = argv(3);
			$account = q("SELECT * FROM account WHERE account_id = %d",
				intval($uid)
			);
	
			if (! $account) {
				notice( t('Account not found') . EOL);
				goaway(z_root() . '/admin/accounts' );
			}
	
			check_form_security_token_redirectOnErr('/admin/accounts', 'admin_accounts', 't');
	
			switch (argv(2)){
				case 'delete':
					// delete user
					account_remove($uid,true,false);
	
					notice( sprintf(t("Account '%s' deleted"), $account[0]['account_email']) . EOL);
					break;
				case 'block':
					q("UPDATE account SET account_flags = ( account_flags | %d ) WHERE account_id = %d",
						intval(ACCOUNT_BLOCKED),
						intval($uid)
					);
	
					notice( sprintf( t("Account '%s' blocked") , $account[0]['account_email']) . EOL);
					break;
				case 'unblock':
					q("UPDATE account SET account_flags = ( account_flags & ~%d ) WHERE account_id = %d",
							intval(ACCOUNT_BLOCKED),
							intval($uid)
					);
	
					notice( sprintf( t("Account '%s' unblocked"), $account[0]['account_email']) . EOL);
					break;
			}
	
			goaway(z_root() . '/admin/accounts' );
		}
	
		/* get pending */
		$pending = q("SELECT account.*, register.hash from account left join register on account_id = register.uid where (account_flags & %d )>0 ",
			intval(ACCOUNT_PENDING)
		);
	
		/* get accounts */
	
		$total = q("SELECT count(*) as total FROM account");
		if (count($total)) {
			\App::set_pager_total($total[0]['total']);
			\App::set_pager_itemspage(100);
		}
	
		$serviceclass = (($_REQUEST['class']) ? " and account_service_class = '" . dbesc($_REQUEST['class']) . "' " : '');

		$key = (($_REQUEST['key']) ? dbesc($_REQUEST['key']) : 'account_id');
		$dir = 'asc';
		if(array_key_exists('dir',$_REQUEST))
			$dir = ((intval($_REQUEST['dir'])) ? 'asc' : 'desc');

		$base = z_root() . '/admin/accounts?f=';
		$odir = (($dir === 'asc') ? '0' : '1');
	
		$users = q("SELECT `account_id` , `account_email`, `account_lastlog`, `account_created`, `account_expires`, " . 			"`account_service_class`, ( account_flags & %d ) > 0 as `blocked`, " .
				"(SELECT %s FROM channel as ch " .
				"WHERE ch.channel_account_id = ac.account_id and ch.channel_removed = 0 ) as `channels` " .
			"FROM account as ac where true $serviceclass order by $key $dir limit %d offset %d ",
			intval(ACCOUNT_BLOCKED),
			db_concat('ch.channel_address', ' '),
			intval(\App::$pager['itemspage']),
			intval(\App::$pager['start'])
		);
	
	//	function _setup_users($e){
	//		$accounts = Array(
	//			t('Normal Account'), 
	//			t('Soapbox Account'),
	//			t('Community/Celebrity Account'),
	//			t('Automatic Friend Account')
	//		);
	
	//		$e['page_flags'] = $accounts[$e['page-flags']];
	//		$e['register_date'] = relative_date($e['register_date']);
	//		$e['login_date'] = relative_date($e['login_date']);
	//		$e['lastitem_date'] = relative_date($e['lastitem_date']);
	//		return $e;
	//	}
	//	$users = array_map("_setup_users", $users);
	
		$t = get_markup_template('admin_accounts.tpl');
		$o = replace_macros($t, array(
			// strings //
			'$title' => t('Administration'),
			'$page' => t('Accounts'),
			'$submit' => t('Submit'),
			'$select_all' => t('select all'),
			'$h_pending' => t('Registrations waiting for confirm'),
			'$th_pending' => array( t('Request date'), t('Email') ),
			'$no_pending' =>  t('No registrations.'),
			'$approve' => t('Approve'),
			'$deny' => t('Deny'),
			'$delete' => t('Delete'),
			'$block' => t('Block'),
			'$unblock' => t('Unblock'),
			'$odir' => $odir,
			'$base' => $base,
			'$h_users' => t('Accounts'),
			'$th_users' => array( 
				[ t('ID'), 'account_id' ],
				[ t('Email'), 'account_email' ],
				[ t('All Channels'), 'channels' ],
				[ t('Register date'), 'account_created' ],
				[ t('Last login'), 'account_lastlog' ],
				[ t('Expires'), 'account_expires' ],
				[ t('Service Class'), 'account_service_class'] ),
	
			'$confirm_delete_multi' => t('Selected accounts will be deleted!\n\nEverything these accounts had posted on this site will be permanently deleted!\n\nAre you sure?'),
			'$confirm_delete' => t('The account {0} will be deleted!\n\nEverything this account has posted on this site will be permanently deleted!\n\nAre you sure?'),
	
			'$form_security_token' => get_form_security_token("admin_accounts"),
	
			// values //
			'$baseurl' => z_root(),
	
			'$pending' => $pending,
			'$users' => $users,
		));
		$o .= paginate($a);
	
		return $o;
	}
	
	
	/**
	 * @brief Channels admin page.
	 *
	 * @param App &$a
	 */
	function admin_page_channels_post(&$a) {
		$channels = ( x($_POST, 'channel') ? $_POST['channel'] : Array() );
	
		check_form_security_token_redirectOnErr('/admin/channels', 'admin_channels');
		
		$xor = db_getfunc('^');
	
		if (x($_POST,'page_channels_block')){
			foreach($channels as $uid){
				q("UPDATE channel SET channel_pageflags = ( channel_pageflags $xor %d ) where channel_id = %d",
					intval(PAGE_CENSORED),
					intval( $uid )
				);
				\Zotlabs\Daemon\Master::Summon(array('Directory',$uid,'nopush'));
			}
			notice( sprintf( tt("%s channel censored/uncensored", "%s channels censored/uncensored", count($channels)), count($channels)) );
		}
		if (x($_POST,'page_channels_code')){
			foreach($channels as $uid){
				q("UPDATE channel SET channel_pageflags = ( channel_pageflags $xor %d ) where channel_id = %d",
					intval(PAGE_ALLOWCODE),
					intval( $uid )
				);
			}
			notice( sprintf( tt("%s channel code allowed/disallowed", "%s channels code allowed/disallowed", count($channels)), count($channels)) );
		}
		if (x($_POST,'page_channels_delete')){
			foreach($channels as $uid){
				channel_remove($uid,true);
			}
			notice( sprintf( tt("%s channel deleted", "%s channels deleted", count($channels)), count($channels)) );
		}
	
		goaway(z_root() . '/admin/channels' );
	}
	
	/**
	 * @brief
	 *
	 * @param App &$a
	 * @return string
	 */
	function admin_page_channels(&$a){
		if (argc() > 2) {
			$uid = argv(3);
			$channel = q("SELECT * FROM channel WHERE channel_id = %d",
				intval($uid)
			);
	
			if (! $channel) {
				notice( t('Channel not found') . EOL);
				goaway(z_root() . '/admin/channels' );
			}
	
			switch(argv(2)) {
				case "delete":{
					check_form_security_token_redirectOnErr('/admin/channels', 'admin_channels', 't');
					// delete channel
					channel_remove($uid,true);
					
					notice( sprintf(t("Channel '%s' deleted"), $channel[0]['channel_name']) . EOL);
				}; break;
	
				case "block":{
					check_form_security_token_redirectOnErr('/admin/channels', 'admin_channels', 't');
					$pflags = $channel[0]['channel_pageflags'] ^ PAGE_CENSORED; 
					q("UPDATE channel SET channel_pageflags = %d where channel_id = %d",
						intval($pflags),
						intval( $uid )
					);
					\Zotlabs\Daemon\Master::Summon(array('Directory',$uid,'nopush'));
	
					notice( sprintf( (($pflags & PAGE_CENSORED) ? t("Channel '%s' censored"): t("Channel '%s' uncensored")) , $channel[0]['channel_name'] . ' (' . $channel[0]['channel_address'] . ')' ) . EOL);
				}; break;
	
				case "code":{
					check_form_security_token_redirectOnErr('/admin/channels', 'admin_channels', 't');
					$pflags = $channel[0]['channel_pageflags'] ^ PAGE_ALLOWCODE; 
					q("UPDATE channel SET channel_pageflags = %d where channel_id = %d",
						intval($pflags),
						intval( $uid )
					);
	
					notice( sprintf( (($pflags & PAGE_ALLOWCODE) ? t("Channel '%s' code allowed"): t("Channel '%s' code disallowed")) , $channel[0]['channel_name'] . ' (' . $channel[0]['channel_address'] . ')' ) . EOL);
				}; break;
	
				default: 
					break;
			}
			goaway(z_root() . '/admin/channels' );
		}


		$key = (($_REQUEST['key']) ? dbesc($_REQUEST['key']) : 'channel_id');
		$dir = 'asc';
		if(array_key_exists('dir',$_REQUEST))
			$dir = ((intval($_REQUEST['dir'])) ? 'asc' : 'desc');

		$base = z_root() . '/admin/channels?f=';
		$odir = (($dir === 'asc') ? '0' : '1');


		/* get channels */
	
		$total = q("SELECT count(*) as total FROM channel where channel_removed = 0 and channel_system = 0");
		if($total) {
			\App::set_pager_total($total[0]['total']);
			\App::set_pager_itemspage(100);
		}

		$channels = q("SELECT * from channel where channel_removed = 0 and channel_system = 0 order by $key $dir limit %d offset %d ",
			intval(\App::$pager['itemspage']),
			intval(\App::$pager['start'])
		);

		if($channels) {
			for($x = 0; $x < count($channels); $x ++) {
				if($channels[$x]['channel_pageflags'] & PAGE_CENSORED)
					$channels[$x]['blocked'] = true;
				else
					$channels[$x]['blocked'] = false;
	
				if($channels[$x]['channel_pageflags'] & PAGE_ALLOWCODE)
					$channels[$x]['allowcode'] = true;
				else
					$channels[$x]['allowcode'] = false;
			}
		}
	
		$t = get_markup_template("admin_channels.tpl");
		$o = replace_macros($t, array(
			// strings //
			'$title' => t('Administration'),
			'$page' => t('Channels'),
			'$submit' => t('Submit'),
			'$select_all' => t('select all'),
			'$delete' => t('Delete'),
			'$block' => t('Censor'),
			'$unblock' => t('Uncensor'),
			'$code' => t('Allow Code'),
			'$uncode' => t('Disallow Code'),
			'$h_channels' => t('Channel'),
			'$base' => $base,
			'$odir' => $odir,
			'$th_channels' => array( 
					[ t('UID'), 'channel_id' ],
					[ t('Name'), 'channel_name' ],
					[ t('Address'), 'channel_address' ]),
	
			'$confirm_delete_multi' => t('Selected channels will be deleted!\n\nEverything that was posted in these channels on this site will be permanently deleted!\n\nAre you sure?'),
			'$confirm_delete' => t('The channel {0} will be deleted!\n\nEverything that was posted in this channel on this site will be permanently deleted!\n\nAre you sure?'),
	
			'$form_security_token' => get_form_security_token("admin_channels"),
	
			// values //
			'$baseurl' => z_root(),
			'$channels' => $channels,
		));
		$o .= paginate($a);
	
		return $o;
	}
	

	/**
	 * @param array $themes
	 * @param string $th
	 * @param int $result
	 */
	function toggle_theme(&$themes, $th, &$result) {
		for($x = 0; $x < count($themes); $x ++) {
			if($themes[$x]['name'] === $th) {
				if($themes[$x]['allowed']) {
					$themes[$x]['allowed'] = 0;
					$result = 0;
				}
				else {
					$themes[$x]['allowed'] = 1;
					$result = 1;
				}
			}
		}
	}
	
	/**
	 * @param array $themes
	 * @param string $th
	 * @return int
	 */
	function theme_status($themes, $th) {
		for($x = 0; $x < count($themes); $x ++) {
			if($themes[$x]['name'] === $th) {
				if($themes[$x]['allowed']) {
					return 1;
				}
				else {
					return 0;
				}
			}
		}
		return 0;
	}
	
	
	/**
	 * @param array $themes
	 * @return string
	 */
	function rebuild_theme_table($themes) {
		$o = '';
		if(count($themes)) {
			foreach($themes as $th) {
				if($th['allowed']) {
					if(strlen($o))
						$o .= ',';
					$o .= $th['name'];
				}
			}
		}
		return $o;
	}
	
	
	/**
	 * @brief Themes admin page.
	 *
	 * @param App &$a
	 * @return string
	 */
	function admin_page_themes(&$a){
	
		$allowed_themes_str = get_config('system', 'allowed_themes');
		$allowed_themes_raw = explode(',', $allowed_themes_str);
		$allowed_themes = array();
		if(count($allowed_themes_raw))
			foreach($allowed_themes_raw as $x)
				if(strlen(trim($x)))
					$allowed_themes[] = trim($x);
	
		$themes = array();
		$files = glob('view/theme/*');
		if($files) {
			foreach($files as $file) {
				$f = basename($file);
				$is_experimental = intval(file_exists($file . '/.experimental'));
				$is_supported = 1-(intval(file_exists($file . '/.unsupported'))); // Is not used yet
				$is_allowed = intval(in_array($f,$allowed_themes));
				$themes[] = array('name' => $f, 'experimental' => $is_experimental, 'supported' => $is_supported, 'allowed' => $is_allowed);
			}
		}
	
		if(! count($themes)) {
			notice( t('No themes found.'));
			return '';
		}
	
		/*
		 * Single theme
		 */
	
		if (\App::$argc == 3){
			$theme = \App::$argv[2];
			if(! is_dir("view/theme/$theme")){
				notice( t("Item not found.") );
				return '';
			}
	
			if (x($_GET,"a") && $_GET['a']=="t"){
				check_form_security_token_redirectOnErr('/admin/themes', 'admin_themes', 't');
	
				// Toggle theme status
	
				$this->toggle_theme($themes, $theme, $result);
				$s = $this->rebuild_theme_table($themes);
				if($result)
					info( sprintf('Theme %s enabled.', $theme));
				else
					info( sprintf('Theme %s disabled.', $theme));
	
				set_config('system', 'allowed_themes', $s);
				goaway(z_root() . '/admin/themes' );
			}
	
			// display theme details
			require_once('library/markdown.php');
	
			if ($this->theme_status($themes,$theme)) {
				$status="on"; $action= t("Disable");
			} else {
				$status="off"; $action= t("Enable");
			}
	
			$readme=Null;
			if (is_file("view/theme/$theme/README.md")){
				$readme = file_get_contents("view/theme/$theme/README.md");
				$readme = Markdown($readme);
			} else if (is_file("view/theme/$theme/README")){
				$readme = "<pre>". file_get_contents("view/theme/$theme/README") ."</pre>";
			}
	
			$admin_form = '';
			if (is_file("view/theme/$theme/php/config.php")){
				require_once("view/theme/$theme/php/config.php");
				if(function_exists("theme_admin")){
					$admin_form = theme_admin($a);
				}
			}
	
			$screenshot = array( get_theme_screenshot($theme), t('Screenshot'));
			if(! stristr($screenshot[0],$theme))
				$screenshot = null;
	
			$t = get_markup_template('admin_plugins_details.tpl');
			return replace_macros($t, array(
				'$title' => t('Administration'),
				'$page' => t('Themes'),
				'$toggle' => t('Toggle'),
				'$settings' => t('Settings'),
				'$baseurl' => z_root(),
			
				'$plugin' => $theme,
				'$status' => $status,
				'$action' => $action,
				'$info' => get_theme_info($theme),
				'$function' => 'themes',
				'$admin_form' => $admin_form,
				'$str_author' => t('Author: '),
				'$str_maintainer' => t('Maintainer: '),
				'$screenshot' => $screenshot,
				'$readme' => $readme,
	
				'$form_security_token' => get_form_security_token('admin_themes'),
			));
		}
	
		/*
		 * List themes
		 */
	
		$xthemes = array();
		if($themes) {
			foreach($themes as $th) {
				$xthemes[] = array($th['name'],(($th['allowed']) ? "on" : "off"), get_theme_info($th['name']));
			}
		}
	
		$t = get_markup_template('admin_plugins.tpl');
		return replace_macros($t, array(
			'$title' => t('Administration'),
			'$page' => t('Themes'),
			'$submit' => t('Submit'),
			'$baseurl' => z_root(),
			'$function' => 'themes',
			'$plugins' => $xthemes,
			'$experimental' => t('[Experimental]'),
			'$unsupported' => t('[Unsupported]'),
			'$form_security_token' => get_form_security_token('admin_themes'),
		));
	}
	
	
	/**
	 * @brief POST handler for logs admin page.
	 *
	 * @param App &$a
	 */
	function admin_page_logs_post(&$a) {
		if (x($_POST, 'page_logs')) {
			check_form_security_token_redirectOnErr('/admin/logs', 'admin_logs');
	
			$logfile   = ((x($_POST,'logfile'))   ? notags(trim($_POST['logfile'])) : '');
			$debugging = ((x($_POST,'debugging')) ? true : false);
			$loglevel  = ((x($_POST,'loglevel'))  ? intval(trim($_POST['loglevel'])) : 0);
	
			set_config('system','logfile', $logfile);
			set_config('system','debugging',  $debugging);
			set_config('system','loglevel', $loglevel);
		}
	
		info( t('Log settings updated.') );
		goaway(z_root() . '/admin/logs' );
	}
	
	/**
	 * @brief Logs admin page.
	 *
	 * @param App $a
	 * @return string
	 */
	function admin_page_logs(&$a){
	
		$log_choices = Array(
			LOGGER_NORMAL => 'Normal',
			LOGGER_TRACE => 'Trace',
			LOGGER_DEBUG => 'Debug',
			LOGGER_DATA => 'Data',
			LOGGER_ALL => 'All'
		);
	
		$t = get_markup_template('admin_logs.tpl');
	
		$f = get_config('system', 'logfile');
	
		$data = '';
	
		if(!file_exists($f)) {
			$data = t("Error trying to open <strong>$f</strong> log file.\r\n<br/>Check to see if file $f exist and is 
	readable.");
		}
		else {
			$fp = fopen($f, 'r');
			if(!$fp) {
				$data = t("Couldn't open <strong>$f</strong> log file.\r\n<br/>Check to see if file $f is readable.");
			}
			else {
				$fstat = fstat($fp);
				$size = $fstat['size'];
				if($size != 0)
				{
					if($size > 5000000 || $size < 0)
						$size = 5000000;
					$seek = fseek($fp,0-$size,SEEK_END);
					if($seek === 0) {
						$data = escape_tags(fread($fp,$size));
						while(! feof($fp))
							$data .= escape_tags(fread($fp,4096));
					}
				}
				fclose($fp);
			}
		}
	
		return replace_macros($t, array(
			'$title' => t('Administration'),
			'$page' => t('Logs'),
			'$submit' => t('Submit'),
			'$clear' => t('Clear'),
			'$data' => $data,
			'$baseurl' => z_root(),
			'$logname' =>  get_config('system','logfile'),
	
			// name, label, value, help string, extra data...
			'$debugging' => array('debugging', t("Debugging"),get_config('system','debugging'), ""),
			'$logfile'   => array('logfile', t("Log file"), get_config('system','logfile'), t("Must be writable by web server. Relative to your top-level webserver directory.")),
			'$loglevel'  => array('loglevel', t("Log level"), get_config('system','loglevel'), "", $log_choices),
	
			'$form_security_token' => get_form_security_token('admin_logs'),
		));
	}
	
	function admin_page_plugins_post($action) {
		switch ($action) {
			case 'updaterepo':
				if (array_key_exists('repoName', $_REQUEST)) {
					$repoName = $_REQUEST['repoName'];
				} else {
					json_return_and_die(array('message' => 'No repo name provided.', 'success' => false));
				}
				$extendDir = __DIR__ . '/../../store/[data]/git/sys/extend';
				$addonDir = $extendDir . '/addon';
				if (!file_exists($extendDir)) {
					if (!mkdir($extendDir, 0770, true)) {
						logger('Error creating extend folder: ' . $extendDir);
						json_return_and_die(array('message' => 'Error creating extend folder: ' . $extendDir, 'success' => false));
					} else {
						if (!symlink(__DIR__ . '/../../extend/addon', $addonDir)) {
							logger('Error creating symlink to addon folder: ' . $addonDir);
							json_return_and_die(array('message' => 'Error creating symlink to addon folder: ' . $addonDir, 'success' => false));
						}
					}
				}
				$repoDir = __DIR__ . '/../../store/[data]/git/sys/extend/addon/' . $repoName;
				if (!is_dir($repoDir)) {
					logger('Repo directory does not exist: ' . $repoDir);
					json_return_and_die(array('message' => 'Invalid addon repo.', 'success' => false));
				}
				if (!is_writable($repoDir)) {
					logger('Repo directory not writable to web server: ' . $repoDir);
					json_return_and_die(array('message' => 'Repo directory not writable to web server.', 'success' => false));
				}
				$git = new GitRepo('sys', null, false, $repoName, $repoDir);
				try {
					if ($git->pull()) {
						$files = array_diff(scandir($repoDir), array('.', '..'));
						foreach ($files as $file) {
							if (is_dir($repoDir . '/' . $file) && $file !== '.git') {
								$source = '../extend/addon/' . $repoName . '/' . $file;
								$target = realpath(__DIR__ . '/../../addon/') . '/' . $file;
								unlink($target);
								if (!symlink($source, $target)) {
									logger('Error linking addons to /addon');
									json_return_and_die(array('message' => 'Error linking addons to /addon', 'success' => false));
								}
							}
						}
						json_return_and_die(array('message' => 'Repo updated.', 'success' => true));
					} else {
						json_return_and_die(array('message' => 'Error updating addon repo.', 'success' => false));
					}
				} catch (\PHPGit\Exception\GitException $e) {
					json_return_and_die(array('message' => 'Error updating addon repo.', 'success' => false));
				}
			case 'removerepo':
				if (array_key_exists('repoName', $_REQUEST)) {
					$repoName = $_REQUEST['repoName'];
				} else {
					json_return_and_die(array('message' => 'No repo name provided.', 'success' => false));
				}
				$extendDir = __DIR__ . '/../../store/[data]/git/sys/extend';
				$addonDir = $extendDir . '/addon';
				if (!file_exists($extendDir)) {
					if (!mkdir($extendDir, 0770, true)) {
						logger('Error creating extend folder: ' . $extendDir);
						json_return_and_die(array('message' => 'Error creating extend folder: ' . $extendDir, 'success' => false));
					} else {
						if (!symlink(__DIR__ . '/../../extend/addon', $addonDir)) {
							logger('Error creating symlink to addon folder: ' . $addonDir);
							json_return_and_die(array('message' => 'Error creating symlink to addon folder: ' . $addonDir, 'success' => false));
						}
					}
				}
				$repoDir = __DIR__ . '/../../store/[data]/git/sys/extend/addon/' . $repoName;
				if (!is_dir($repoDir)) {
					logger('Repo directory does not exist: ' . $repoDir);
					json_return_and_die(array('message' => 'Invalid addon repo.', 'success' => false));
				}
				if (!is_writable($repoDir)) {
					logger('Repo directory not writable to web server: ' . $repoDir);
					json_return_and_die(array('message' => 'Repo directory not writable to web server.', 'success' => false));
				}
				// TODO: remove directory and unlink /addon/files
				if (rrmdir($repoDir)) {
					json_return_and_die(array('message' => 'Repo deleted.', 'success' => true));
				} else {
					json_return_and_die(array('message' => 'Error deleting addon repo.', 'success' => false));
				}
			case 'installrepo':
				require_once('library/markdown.php');
				if (array_key_exists('repoURL', $_REQUEST)) {
					require __DIR__ . '/../../library/PHPGit.autoload.php';			 // Load PHPGit dependencies					
					$repoURL = $_REQUEST['repoURL'];
					$extendDir = __DIR__ . '/../../store/[data]/git/sys/extend';
					$addonDir = $extendDir . '/addon';
					if (!file_exists($extendDir)) {
						if (!mkdir($extendDir, 0770, true)) {
							logger('Error creating extend folder: ' . $extendDir);
							json_return_and_die(array('message' => 'Error creating extend folder: ' . $extendDir, 'success' => false));
						} else {
							if (!symlink(__DIR__ . '/../../extend/addon', $addonDir)) {
								logger('Error creating symlink to addon folder: ' . $addonDir);
								json_return_and_die(array('message' => 'Error creating symlink to addon folder: ' . $addonDir, 'success' => false));
							}
						}
					}
					if (!is_writable($extendDir)) {
						logger('Directory not writable to web server: ' . $extendDir);
						json_return_and_die(array('message' => 'Directory not writable to web server.', 'success' => false));
					}
					$repoName = null;
					if (array_key_exists('repoName', $_REQUEST) && $_REQUEST['repoName'] !== '') {
						$repoName = $_REQUEST['repoName'];
					} else {
						$repoName = GitRepo::getRepoNameFromURL($repoURL);
					}
					if (!$repoName) {
						logger('Invalid git repo');
						json_return_and_die(array('message' => 'Invalid git repo', 'success' => false));
					}
					$repoDir = $addonDir . '/' . $repoName;
					$tempRepoBaseDir = __DIR__ . '/../../store/[data]/git/sys/temp/';
					$tempAddonDir = $tempRepoBaseDir . $repoName;

					if (!is_writable($addonDir) || !is_writable($tempAddonDir)) {
						logger('Temp repo directory or /extend/addon not writable to web server: ' . $tempAddonDir);
						json_return_and_die(array('message' => 'Temp repo directory not writable to web server.', 'success' => false));
					}
					rename($tempAddonDir, $repoDir);

					if (!is_writable(realpath(__DIR__ . '/../../addon/'))) {
						logger('/addon directory not writable to web server: ' . $tempAddonDir);
						json_return_and_die(array('message' => '/addon directory not writable to web server.', 'success' => false));
					}
					$files = array_diff(scandir($repoDir), array('.', '..'));
					foreach ($files as $file) {
						if (is_dir($repoDir . '/' . $file) && $file !== '.git') {
							$source = '../extend/addon/' . $repoName . '/' . $file;
							$target = realpath(__DIR__ . '/../../addon/') . '/' . $file;
							unlink($target);
							if (!symlink($source, $target)) {
								logger('Error linking addons to /addon');
								json_return_and_die(array('message' => 'Error linking addons to /addon', 'success' => false));
							}
						}
					}
					$git = new GitRepo('sys', $repoURL, false, $repoName, $repoDir);
					$repo = $git->probeRepo();
					json_return_and_die(array('repo' => $repo, 'message' => '', 'success' => true));
				}
			case 'addrepo':
				require_once('library/markdown.php');
				if (array_key_exists('repoURL', $_REQUEST)) {
					require __DIR__ . '/../../library/PHPGit.autoload.php';			 // Load PHPGit dependencies					
					$repoURL = $_REQUEST['repoURL'];
					$extendDir = __DIR__ . '/../../store/[data]/git/sys/extend';
					$addonDir = $extendDir . '/addon';
					$tempAddonDir = __DIR__ . '/../../store/[data]/git/sys/temp';
					if (!file_exists($extendDir)) {
						if (!mkdir($extendDir, 0770, true)) {
							logger('Error creating extend folder: ' . $extendDir);
							json_return_and_die(array('message' => 'Error creating extend folder: ' . $extendDir, 'success' => false));
						} else {
							if (!symlink(__DIR__ . '/../../extend/addon', $addonDir)) {
								logger('Error creating symlink to addon folder: ' . $addonDir);
								json_return_and_die(array('message' => 'Error creating symlink to addon folder: ' . $addonDir, 'success' => false));
							}
						}
					}
					if (!is_dir($tempAddonDir)) {
						if (!mkdir($tempAddonDir, 0770, true)) {
							logger('Error creating temp plugin repo folder: ' . $tempAddonDir);
							json_return_and_die(array('message' => 'Error creating temp plugin repo folder: ' . $tempAddonDir, 'success' => false));
						}
					}
					$repoName = null;
					if (array_key_exists('repoName', $_REQUEST) && $_REQUEST['repoName'] !== '') {
						$repoName = $_REQUEST['repoName'];
					} else {
						$repoName = GitRepo::getRepoNameFromURL($repoURL);
					}
					if (!$repoName) {
						logger('Invalid git repo');
						json_return_and_die(array('message' => 'Invalid git repo: ' . $repoName, 'success' => false));
					}
					$repoDir = $tempAddonDir . '/' . $repoName;
					if (!is_writable($tempAddonDir)) {
						logger('Temporary directory for new addon repo is not writable to web server: ' . $tempAddonDir);
						json_return_and_die(array('message' => 'Temporary directory for new addon repo is not writable to web server.', 'success' => false));
					}
					// clone the repo if new automatically
					$git = new GitRepo('sys', $repoURL, true, $repoName, $repoDir);

					$remotes = $git->git->remote();
					$fetchURL = $remotes['origin']['fetch'];
					if ($fetchURL !== $git->url) {
						if (rrmdir($repoDir)) {
							$git = new GitRepo('sys', $repoURL, true, $repoName, $repoDir);
						} else {
							json_return_and_die(array('message' => 'Error deleting existing addon repo.', 'success' => false));
						}
					}
					$repo = $git->probeRepo();
					$repo['readme'] = $repo['manifest'] = null;
					foreach ($git->git->tree('master') as $object) {
						if ($object['type'] == 'blob' && (strtolower($object['file']) === 'readme.md' || strtolower($object['file']) === 'readme')) {
							$repo['readme'] = Markdown($git->git->cat->blob($object['hash']));
						} else if ($object['type'] == 'blob' && strtolower($object['file']) === 'manifest.json') {
							$repo['manifest'] = $git->git->cat->blob($object['hash']);
						}
					}
					json_return_and_die(array('repo' => $repo, 'message' => '', 'success' => true));
				} else {
					json_return_and_die(array('message' => 'No repo URL provided', 'success' => false));
				}
				break;
			default:
				break;
		}
	}

	function admin_page_profs_post(&$a) {
	
		if(array_key_exists('basic',$_REQUEST)) {
			$arr = explode(',',$_REQUEST['basic']);
			for($x = 0; $x < count($arr); $x ++) 
				if(trim($arr[$x]))
					$arr[$x] = trim($arr[$x]);
			set_config('system','profile_fields_basic',$arr);
	
			if(array_key_exists('advanced',$_REQUEST)) {
				$arr = explode(',',$_REQUEST['advanced']);
				for($x = 0; $x < count($arr); $x ++)
					if(trim($arr[$x]))
						$arr[$x] = trim($arr[$x]);
				set_config('system','profile_fields_advanced',$arr);
			}
			goaway(z_root() . '/admin/profs');
		}
	
	
		if(array_key_exists('field_name',$_REQUEST)) {
			if($_REQUEST['id']) {
				$r = q("update profdef set field_name = '%s', field_type = '%s', field_desc = '%s' field_help = '%s', field_inputs = '%s' where id = %d",
					dbesc($_REQUEST['field_name']),
					dbesc($_REQUEST['field_type']),
					dbesc($_REQUEST['field_desc']),
					dbesc($_REQUEST['field_help']),
					dbesc($_REQUEST['field_inputs']),
					intval($_REQUEST['id'])
				);
			}
			else {
				$r = q("insert into profdef ( field_name, field_type, field_desc, field_help, field_inputs ) values ( '%s' , '%s', '%s', '%s', '%s' )",
					dbesc($_REQUEST['field_name']),
					dbesc($_REQUEST['field_type']),
					dbesc($_REQUEST['field_desc']),
					dbesc($_REQUEST['field_help']),
					dbesc($_REQUEST['field_inputs'])
				);
			}
		}
	
	
		// add to chosen array basic or advanced
	
		goaway(z_root() . '/admin/profs');
	}
	
	function admin_page_profs(&$a) {
	
		if((argc() > 3) && argv(2) == 'drop' && intval(argv(3))) {
			$r = q("delete from profdef where id = %d",
				intval(argv(3))
			);
			// remove from allowed fields
	
			goaway(z_root() . '/admin/profs');	
		}
	
		if((argc() > 2) && argv(2) === 'new') {
			return replace_macros(get_markup_template('profdef_edit.tpl'),array(
				'$header' => t('New Profile Field'),
				'$field_name' => array('field_name',t('Field nickname'),$_REQUEST['field_name'],t('System name of field')),
				'$field_type' => array('field_type',t('Input type'),(($_REQUEST['field_type']) ? $_REQUEST['field_type'] : 'text'),''),
				'$field_desc' => array('field_desc',t('Field Name'),$_REQUEST['field_desc'],t('Label on profile pages')),
				'$field_help' => array('field_help',t('Help text'),$_REQUEST['field_help'],t('Additional info (optional)')),
				'$submit' => t('Save')
			));
		}
	
		if((argc() > 2) && intval(argv(2))) {
			$r = q("select * from profdef where id = %d limit 1",
				intval(argv(2))
			);
			if(! $r) {
				notice( t('Field definition not found') . EOL);
				goaway(z_root() . '/admin/profs');
			}
	
			return replace_macros(get_markup_template('profdef_edit.tpl'),array(
				'$id' => intval($r[0]['id']),
				'$header' => t('Edit Profile Field'),
				'$field_name' => array('field_name',t('Field nickname'),$r[0]['field_name'],t('System name of field')),
				'$field_type' => array('field_type',t('Input type'),$r[0]['field_type'],''),
				'$field_desc' => array('field_desc',t('Field Name'),$r[0]['field_desc'],t('Label on profile pages')),
				'$field_help' => array('field_help',t('Help text'),$r[0]['field_help'],t('Additional info (optional)')),
				'$submit' => t('Save')
			));
		}
	
		$basic = '';
		$barr = array();
		$fields = get_profile_fields_basic();
		if(! $fields)
			$fields = get_profile_fields_basic(1);
		if($fields) {
			foreach($fields as $k => $v) {
				if($basic)
					$basic .= ', ';
				$basic .= trim($k);
				$barr[] = trim($k);
			}
		}
	
		$advanced = '';
		$fields = get_profile_fields_advanced();
		if(! $fields)
			$fields = get_profile_fields_advanced(1);
		if($fields) {
			foreach($fields as $k => $v) {
				if(in_array(trim($k),$barr))
					continue;
				if($advanced)
					$advanced .= ', ';
				$advanced .= trim($k);
			}
		}
	
		$all = '';
		$fields = get_profile_fields_advanced(1);
		if($fields) {
			foreach($fields as $k => $v) {
				if($all)
					$all .= ', ';
				$all .= trim($k);
			}
		}
	
		$r = q("select * from profdef where true");
		if($r) {
			foreach($r as $rr) {
				if($all)
					$all .= ', ';
				$all .= $rr['field_name'];
			}
		}
	
		
		$o = replace_macros(get_markup_template('admin_profiles.tpl'),array(
			'$title' => t('Profile Fields'),
			'$basic' => array('basic',t('Basic Profile Fields'),$basic,''),
			'$advanced' => array('advanced',t('Advanced Profile Fields'),$advanced,t('(In addition to basic fields)')),
			'$all' => $all,
			'$all_desc' => t('All available fields'),
			'$cust_field_desc' => t('Custom Fields'),
			'$cust_fields' => $r,
			'$edit' => t('Edit'),
			'$drop' => t('Delete'),
			'$new' => t('Create Custom Field'),		
			'$submit' => t('Submit')
		));
	
		return $o;
	
	
	}
	
}