friendica/include/identity.php

<?php
/**
 * @file include/identity.php
 */

require_once('include/forums.php');
require_once('include/bbcode.php');
require_once("mod/proxy.php");

/**
 *
 * @brief Loads a profile into the page sidebar.
 *
 * The function requires a writeable copy of the main App structure, and the nickname
 * of a registered local account.
 *
 * If the viewer is an authenticated remote viewer, the profile displayed is the
 * one that has been configured for his/her viewing in the Contact manager.
 * Passing a non-zero profile ID can also allow a preview of a selected profile
 * by the owner.
 *
 * Profile information is placed in the App structure for later retrieval.
 * Honours the owner's chosen theme for display.
 *
 * @attention Should only be run in the _init() functions of a module. That ensures that
 *      the theme is chosen before the _init() function of a theme is run, which will usually
 *      load a lot of theme-specific content
 *
 * @param App $a
 * @param string $nickname
 * @param int $profile
 * @param array $profiledata
 */
function profile_load(&$a, $nickname, $profile = 0, $profiledata = array()) {

	$user = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
		dbesc($nickname)
	);

	if(!$user && count($user) && !count($profiledata)) {
		logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
		notice( t('Requested account is not available.') . EOL );
		$a->error = 404;
		return;
	}

	$pdata = get_profiledata_by_nick($nickname, $user[0]['uid'], $profile);

	if(($pdata === false) || (!count($pdata)) && !count($profiledata)) {
		logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
		notice( t('Requested profile is not available.') . EOL );
		$a->error = 404;
		return;
	}

	// fetch user tags if this isn't the default profile

	if(!$pdata['is-default']) {
		$x = q("SELECT `pub_keywords` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
				intval($pdata['profile_uid'])
		);
		if($x && count($x))
			$pdata['pub_keywords'] = $x[0]['pub_keywords'];
	}

	$a->profile = $pdata;
	$a->profile_uid = $pdata['profile_uid'];

	$a->profile['mobile-theme'] = get_pconfig($a->profile['profile_uid'], 'system', 'mobile_theme');
	$a->profile['network'] = NETWORK_DFRN;

	$a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];

//		if (!$profiledata)
//			$_SESSION['theme'] = $a->profile['theme'];

	$_SESSION['mobile-theme'] = $a->profile['mobile-theme'];

	/*
	 * load/reload current theme info
	 */

	$a->set_template_engine(); // reset the template engine to the default in case the user's theme doesn't specify one

	$theme_info_file = "view/theme/".current_theme()."/theme.php";
	if (file_exists($theme_info_file)){
		require_once($theme_info_file);
	}

	if(! (x($a->page,'aside')))
		$a->page['aside'] = '';

	if(local_user() && local_user() == $a->profile['uid'] && $profiledata) {
		$a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
			'$editprofile' => t('Edit profile'),
			'$profid' => $a->profile['id']
		));
	}

	$block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);

	/**
	 * @todo
	 * By now, the contact block isn't shown, when a different profile is given
	 * But: When this profile was on the same server, then we could display the contacts
	 */
	if ($profiledata)
		$a->page['aside'] .= profile_sidebar($profiledata, true);
	else
		$a->page['aside'] .= profile_sidebar($a->profile, $block);

	/*if(! $block)
	 $a->page['aside'] .= contact_block();*/

	return;
}


/**
 * @brief Get all profil data of a local user
 * 
 * If the viewer is an authenticated remote viewer, the profile displayed is the
 * one that has been configured for his/her viewing in the Contact manager.
 * Passing a non-zero profile ID can also allow a preview of a selected profile
 * by the owner
 * 
 * @param string $nickname
 * @param int $uid
 * @param int $profile
 *	ID of the profile
 * @returns array
 *	Includes all available profile data
 */
function get_profiledata_by_nick($nickname, $uid = 0, $profile = 0) {
	if(remote_user() && count($_SESSION['remote'])) {
			foreach($_SESSION['remote'] as $visitor) {
				if($visitor['uid'] == $uid) {
					$r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
						intval($visitor['cid'])
					);
					if(count($r))
						$profile = $r[0]['profile-id'];
					break;
				}
			}
		}

	$r = null;

	if($profile) {
		$profile_int = intval($profile);
		$r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `contact`.`addr`, `user`.* FROM `profile`
				INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
				WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d AND `contact`.`self` = 1 LIMIT 1",
				dbesc($nickname),
				intval($profile_int)
		);
	}
	if((!$r) && (!count($r))) {
		$r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `contact`.`addr`, `user`.* FROM `profile`
				INNER JOIN `contact` ON `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
				WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 AND `contact`.`self` = 1 LIMIT 1",
				dbesc($nickname)
		);
	}

	return $r[0];

}


/**
 * @brief Formats a profile for display in the sidebar.
 * 
 * It is very difficult to templatise the HTML completely
 * because of all the conditional logic.
 * 
 * @param array $profile
 * @param int $block
 * 
 * @return HTML string stuitable for sidebar inclusion
 * 
 * @note Returns empty string if passed $profile is wrong type or not populated
 */
function profile_sidebar($profile, $block = 0) {
	$a = get_app();

	$o = '';
	$location = false;
	$address = false;
//		$pdesc = true;

	if((! is_array($profile)) && (! count($profile)))
		return $o;

	$profile['picdate'] = urlencode($profile['picdate']);

	if (($profile['network'] != "") AND ($profile['network'] != NETWORK_DFRN)) {
		$profile['network_name'] = format_network_name($profile['network'],$profile['url']);
	} else
		$profile['network_name'] = "";

	call_hooks('profile_sidebar_enter', $profile);


	// don't show connect link to yourself
	$connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);

	// don't show connect link to authenticated visitors either
	if(remote_user() && count($_SESSION['remote'])) {
		foreach($_SESSION['remote'] as $visitor) {
			if($visitor['uid'] == $profile['uid']) {
				$connect = false;
				break;
			}
		}
	}

	// Is the local user already connected to that user?
	if ($connect AND local_user()) {
		if (isset($profile["url"]))
			$profile_url = normalise_link($profile["url"]);
		else
			$profile_url = normalise_link($a->get_baseurl()."/profile/".$profile["nickname"]);

		$r = q("SELECT * FROM `contact` WHERE NOT `pending` AND `uid` = %d AND `nurl` = '%s'",
			local_user(), $profile_url);
		if (count($r))
			$connect = false;
	}

	if ($connect AND ($profile['network'] != NETWORK_DFRN) AND !isset($profile['remoteconnect']))
		$connect = false;

	if (isset($profile['remoteconnect']))
		$remoteconnect = $profile['remoteconnect'];

	if ($connect AND ($profile['network'] == NETWORK_DFRN) AND !isset($remoteconnect))
		$subscribe_feed = t("Atom feed");
	else
		$subscribe_feed = false;

	if(get_my_url() && $profile['unkmail'] && ($profile['uid'] != local_user()))
		$wallmessage = t('Message');
	else
		$wallmessage = false;

	// show edit profile to yourself
	if ($profile['uid'] == local_user() && feature_enabled(local_user(),'multi_profiles')) {
		$profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
		$r = q("SELECT * FROM `profile` WHERE `uid` = %d",
				local_user());

		$profile['menu'] = array(
			'chg_photo' => t('Change profile photo'),
			'cr_new' => t('Create New Profile'),
			'entries' => array(),
		);

		if(count($r)) {

			foreach($r as $rr) {
				$profile['menu']['entries'][] = array(
					'photo' => $rr['thumb'],
					'id' => $rr['id'],
					'alt' => t('Profile Image'),
					'profile_name' => $rr['profile-name'],
					'isdefault' => $rr['is-default'],
					'visibile_to_everybody' =>  t('visible to everybody'),
					'edit_visibility' => t('Edit visibility'),

				);
			}


		}
	}
	if ($profile['uid'] == local_user() && !feature_enabled(local_user(),'multi_profiles')) {
		$profile['edit'] = array($a->get_baseurl(). '/profiles/'.$profile['id'], t('Edit profile'),"", t('Edit profile'));
		$profile['menu'] = array(
			'chg_photo' => t('Change profile photo'),
			'cr_new' => null,
			'entries' => array(),
		);
	}

	// check if profile is a forum
	if((intval($profile['page-flags']) == PAGE_COMMUNITY)
			|| (intval($profile['page-flags']) == PAGE_PRVGROUP)
			|| (intval($profile['forum']))
			|| (intval($profile['prv']))
			|| (intval($profile['community'])))
		$account_type = t('Forum');
	else
		$account_type = "";

	if((x($profile,'address') == 1)
			|| (x($profile,'locality') == 1)
			|| (x($profile,'region') == 1)
			|| (x($profile,'postal-code') == 1)
			|| (x($profile,'country-name') == 1))
		$location = t('Location:');

	$gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);


	$marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);

	$homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);

	$about = ((x($profile,'about') == 1) ?  t('About:') : False);

	if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
		$location = $pdesc = $gender = $marital = $homepage = $about = False;
	}

	$firstname = ((strpos($profile['name'],' '))
			? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
	$lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));

	$diaspora = array(
		'guid' => $profile['guid'],
		'podloc' => $a->get_baseurl(),
		'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
		'nickname' => $profile['nickname'],
		'fullname' => $profile['name'],
		'firstname' => $firstname,
		'lastname' => $lastname,
		'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
		'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
		'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
	);

	if (!$block){
		$contact_block = contact_block();

		if(is_array($a->profile) AND !$a->profile['hide-friends']) {
			$r = q("SELECT `gcontact`.`updated` FROM `contact` INNER JOIN `gcontact` WHERE `gcontact`.`nurl` = `contact`.`nurl` AND `self` AND `uid` = %d LIMIT 1",
				intval($a->profile['uid']));
			if(count($r))
				$updated =  date("c", strtotime($r[0]['updated']));

			$r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 AND `pending` = 0 AND `hidden` = 0 AND `archive` = 0
					AND `network` IN ('%s', '%s', '%s', '')",
				intval($profile['uid']),
				dbesc(NETWORK_DFRN),
				dbesc(NETWORK_DIASPORA),
				dbesc(NETWORK_OSTATUS)
			);
			if(count($r))
				$contacts = intval($r[0]['total']);
		}
	}

	$p = array();
	foreach($profile as $k => $v) {
		$k = str_replace('-','_',$k);
		$p[$k] = $v;
	}

	if (isset($p["about"]))
		$p["about"] = bbcode($p["about"]);

	if (isset($p["location"]))
		$p["location"] = bbcode($p["location"]);

	if (isset($p["photo"]))
		$p["photo"] = proxy_url($p["photo"], false, PROXY_SIZE_SMALL);

	if($a->theme['template_engine'] === 'internal')
		$location = template_escape($location);

	$tpl = get_markup_template('profile_vcard.tpl');
	$o .= replace_macros($tpl, array(
		'$profile' => $p,
		'$connect'  => $connect,
		'$remoteconnect'  => $remoteconnect,
		'$subscribe_feed' => $subscribe_feed,
		'$wallmessage' => $wallmessage,
		'$account_type' => $account_type,
		'$location' => $location,
		'$gender'   => $gender,
//			'$pdesc'	=> $pdesc,
		'$marital'  => $marital,
		'$homepage' => $homepage,
		'$about' => $about,
		'$network' =>  t('Network:'),
		'$contacts' => $contacts,
		'$updated' => $updated,
		'$diaspora' => $diaspora,
		'$contact_block' => $contact_block,
	));


	$arr = array('profile' => &$profile, 'entry' => &$o);

	call_hooks('profile_sidebar', $arr);

	return $o;
}


function get_birthdays() {

	$a = get_app();
	$o = '';

	if(! local_user() || $a->is_mobile || $a->is_tablet)
		return $o;

//		$mobile_detect = new Mobile_Detect();
//		$is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();

//		if($is_mobile)
//			return $o;

	$bd_format = t('g A l F d') ; // 8 AM Friday January 18
	$bd_short = t('F d');

	$r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
			INNER JOIN `contact` ON `contact`.`id` = `event`.`cid`
			WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
			ORDER BY `start` ASC ",
			intval(local_user()),
			dbesc(datetime_convert('UTC','UTC','now + 6 days')),
			dbesc(datetime_convert('UTC','UTC','now'))
	);

	if($r && count($r)) {
		$total = 0;
		$now = strtotime('now');
		$cids = array();

		$istoday = false;
		foreach($r as $rr) {
			if(strlen($rr['name']))
				$total ++;
			if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
				$istoday = true;
		}
		$classtoday = $istoday ? ' birthday-today ' : '';
		if($total) {
			foreach($r as &$rr) {
				if(! strlen($rr['name']))
					continue;

				// avoid duplicates

				if(in_array($rr['cid'],$cids))
					continue;
				$cids[] = $rr['cid'];

				$today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
				$sparkle = '';
				$url = $rr['url'];
				if($rr['network'] === NETWORK_DFRN) {
					$sparkle = " sparkle";
					$url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
				}

				$rr['link'] = $url;
				$rr['title'] = $rr['name'];
				$rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
				$rr['startime'] = Null;
				$rr['today'] = $today;

			}
		}
	}
	$tpl = get_markup_template("birthdays_reminder.tpl");
	return replace_macros($tpl, array(
		'$baseurl' => $a->get_baseurl(),
		'$classtoday' => $classtoday,
		'$count' => $total,
		'$event_reminders' => t('Birthday Reminders'),
		'$event_title' => t('Birthdays this week:'),
		'$events' => $r,
		'$lbr' => '{',  // raw brackets mess up if/endif macro processing
		'$rbr' => '}'

	));
}


function get_events() {

	require_once('include/bbcode.php');

	$a = get_app();

	if(! local_user() || $a->is_mobile || $a->is_tablet)
		return $o;


//		$mobile_detect = new Mobile_Detect();
//		$is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();

//		if($is_mobile)
//			return $o;

	$bd_format = t('g A l F d') ; // 8 AM Friday January 18
	$bd_short = t('F d');

	$r = q("SELECT `event`.* FROM `event`
			WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` >= '%s'
			ORDER BY `start` ASC ",
			intval(local_user()),
			dbesc(datetime_convert('UTC','UTC','now + 7 days')),
			dbesc(datetime_convert('UTC','UTC','now - 1 days'))
	);

	if($r && count($r)) {
		$now = strtotime('now');
		$istoday = false;
		foreach($r as $rr) {
			if(strlen($rr['name']))
				$total ++;

			$strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
			if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
				$istoday = true;
		}
		$classtoday = (($istoday) ? 'event-today' : '');

		$skip = 0;

		foreach($r as &$rr) {
			$title = strip_tags(html_entity_decode(bbcode($rr['summary']),ENT_QUOTES,'UTF-8'));

			if(strlen($title) > 35)
				$title = substr($title,0,32) . '... ';

			$description = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
			if(! $description)
				$description = t('[No description]');

			$strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);

			if(substr($strt,0,10) < datetime_convert('UTC',$a->timezone,'now','Y-m-d')) {
				$skip++;
				continue;
			}

			$today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);

			$rr['title'] = $title;
			$rr['description'] = $desciption;
			$rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
			$rr['startime'] = $strt;
			$rr['today'] = $today;
		}
	}

	$tpl = get_markup_template("events_reminder.tpl");
	return replace_macros($tpl, array(
		'$baseurl' => $a->get_baseurl(),
		'$classtoday' => $classtoday,
		'$count' => count($r) - $skip,
		'$event_reminders' => t('Event Reminders'),
		'$event_title' => t('Events this week:'),
		'$events' => $r,
	));
}

function advanced_profile(&$a) {

	$o = '';
	$uid = $a->profile['uid'];

	$o .= replace_macros(get_markup_template('section_title.tpl'),array(
		'$title' => t('Profile')
	));

	if($a->profile['name']) {

		$tpl = get_markup_template('profile_advanced.tpl');

		$profile = array();

		$profile['fullname'] = array( t('Full Name:'), $a->profile['name'] ) ;

		if($a->profile['gender']) $profile['gender'] = array( t('Gender:'),  $a->profile['gender'] );


		if(($a->profile['dob']) && ($a->profile['dob'] != '0000-00-00')) {

			$year_bd_format = t('j F, Y');
			$short_bd_format = t('j F');


			$val = ((intval($a->profile['dob']))
				? day_translate(datetime_convert('UTC','UTC',$a->profile['dob'] . ' 00:00 +00:00',$year_bd_format))
				: day_translate(datetime_convert('UTC','UTC','2001-' . substr($a->profile['dob'],5) . ' 00:00 +00:00',$short_bd_format)));

			$profile['birthday'] = array( t('Birthday:'), $val);

		}

		if($age = age($a->profile['dob'],$a->profile['timezone'],''))  $profile['age'] = array( t('Age:'), $age );


		if($a->profile['marital']) $profile['marital'] = array( t('Status:'), $a->profile['marital']);


		if($a->profile['with']) $profile['marital']['with'] = $a->profile['with'];

		if(strlen($a->profile['howlong']) && $a->profile['howlong'] !== '0000-00-00 00:00:00') {
				$profile['howlong'] = relative_date($a->profile['howlong'], t('for %1$d %2$s'));
		}

		if($a->profile['sexual']) $profile['sexual'] = array( t('Sexual Preference:'), $a->profile['sexual'] );

		if($a->profile['homepage']) $profile['homepage'] = array( t('Homepage:'), linkify($a->profile['homepage']) );

		if($a->profile['hometown']) $profile['hometown'] = array( t('Hometown:'), linkify($a->profile['hometown']) );

		if($a->profile['pub_keywords']) $profile['pub_keywords'] = array( t('Tags:'), $a->profile['pub_keywords']);

		if($a->profile['politic']) $profile['politic'] = array( t('Political Views:'), $a->profile['politic']);

		if($a->profile['religion']) $profile['religion'] = array( t('Religion:'), $a->profile['religion']);

		if($txt = prepare_text($a->profile['about'])) $profile['about'] = array( t('About:'), $txt );

		if($txt = prepare_text($a->profile['interest'])) $profile['interest'] = array( t('Hobbies/Interests:'), $txt);

		if($txt = prepare_text($a->profile['likes'])) $profile['likes'] = array( t('Likes:'), $txt);

		if($txt = prepare_text($a->profile['dislikes'])) $profile['dislikes'] = array( t('Dislikes:'), $txt);


		if($txt = prepare_text($a->profile['contact'])) $profile['contact'] = array( t('Contact information and Social Networks:'), $txt);

		if($txt = prepare_text($a->profile['music'])) $profile['music'] = array( t('Musical interests:'), $txt);

		if($txt = prepare_text($a->profile['book'])) $profile['book'] = array( t('Books, literature:'), $txt);

		if($txt = prepare_text($a->profile['tv'])) $profile['tv'] = array( t('Television:'), $txt);

		if($txt = prepare_text($a->profile['film'])) $profile['film'] = array( t('Film/dance/culture/entertainment:'), $txt);

		if($txt = prepare_text($a->profile['romance'])) $profile['romance'] = array( t('Love/Romance:'), $txt);

		if($txt = prepare_text($a->profile['work'])) $profile['work'] = array( t('Work/employment:'), $txt);

		if($txt = prepare_text($a->profile['education'])) $profile['education'] = array( t('School/education:'), $txt );
	
		//show subcribed forum if it is enabled in the usersettings
		if (feature_enabled($uid,'forumlist_profile')) {
			$profile['forumlist'] = array( t('Forums:'), forumlist_profile_advanced($uid));
		}

		if ($a->profile['uid'] == local_user())
			$profile['edit'] = array($a->get_baseurl(). '/profiles/'.$a->profile['id'], t('Edit profile'),"", t('Edit profile'));

		return replace_macros($tpl, array(
			'$title' => t('Profile'),
			'$profile' => $profile
		));
	}

	return '';
}

function profile_tabs($a, $is_owner=False, $nickname=Null){
	//echo "<pre>"; var_dump($a->user); killme();

	if (is_null($nickname))
		$nickname  = $a->user['nickname'];

	if(x($_GET,'tab'))
		$tab = notags(trim($_GET['tab']));

	$url = $a->get_baseurl() . '/profile/' . $nickname;

	$tabs = array(
		array(
			'label'=>t('Status'),
			'url' => $url,
			'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
			'title' => t('Status Messages and Posts'),
			'id' => 'status-tab',
			'accesskey' => 'm',
		),
		array(
			'label' => t('Profile'),
			'url' 	=> $url.'/?tab=profile',
			'sel'	=> ((isset($tab) && $tab=='profile')?'active':''),
			'title' => t('Profile Details'),
			'id' => 'profile-tab',
			'accesskey' => 'r',
		),
		array(
			'label' => t('Photos'),
			'url'	=> $a->get_baseurl() . '/photos/' . $nickname,
			'sel'	=> ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
			'title' => t('Photo Albums'),
			'id' => 'photo-tab',
			'accesskey' => 'h',
		),
		array(
			'label' => t('Videos'),
			'url'	=> $a->get_baseurl() . '/videos/' . $nickname,
			'sel'	=> ((!isset($tab)&&$a->argv[0]=='videos')?'active':''),
			'title' => t('Videos'),
			'id' => 'video-tab',
			'accesskey' => 'v',
		),
	);

	if ($is_owner){
		if ($a->theme_events_in_profile)
			$tabs[] = array(
				'label' => t('Events'),
				'url'	=> $a->get_baseurl() . '/events',
				'sel' 	=>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
				'title' => t('Events and Calendar'),
				'id' => 'events-tab',
				'accesskey' => 'e',
			);
		$tabs[] = array(
			'label' => t('Personal Notes'),
			'url'	=> $a->get_baseurl() . '/notes',
			'sel' 	=>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
			'title' => t('Only You Can See This'),
			'id' => 'notes-tab',
			'accesskey' => 't',
		);
	}

	if ((! $is_owner) && ((count($a->profile)) || (! $a->profile['hide-friends']))) {
		$tabs[] = array(
			'label' => t('Contacts'),
			'url'	=> $a->get_baseurl() . '/viewcontacts/' . $nickname,
			'sel'	=> ((!isset($tab)&&$a->argv[0]=='viewcontacts')?'active':''),
			'title' => t('Contacts'),
			'id' => 'viewcontacts-tab',
			'accesskey' => 'k',
		);
	}

	$arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
	call_hooks('profile_tabs', $arr);

	$tpl = get_markup_template('common_tabs.tpl');

	return replace_macros($tpl,array('$tabs' => $arr['tabs']));
}

function get_my_url() {
	if(x($_SESSION,'my_url'))
		return $_SESSION['my_url'];
	return false;
}

function zrl_init(&$a) {
	$tmp_str = get_my_url();
	if(validate_url($tmp_str)) {

		// Is it a DDoS attempt?
		// The check fetches the cached value from gprobe to reduce the load for this system
		$urlparts = parse_url($tmp_str);

		$result = Cache::get("gprobe:".$urlparts["host"]);
		if (!is_null($result)) {
			$result = unserialize($result);
			if (in_array($result["network"], array(NETWORK_FEED, NETWORK_PHANTOM))) {
				logger("DDoS attempt detected for ".$urlparts["host"]." by ".$_SERVER["REMOTE_ADDR"].". server data: ".print_r($_SERVER, true), LOGGER_DEBUG);
				return;
			}
		}

		proc_run('php','include/gprobe.php',bin2hex($tmp_str));
		$arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
		call_hooks('zrl_init',$arr);
	}
}

function zrl($s,$force = false) {
	if(! strlen($s))
		return $s;
	if((! strpos($s,'/profile/')) && (! $force))
		return $s;
	if($force && substr($s,-1,1) !== '/')
		$s = $s . '/';
	$achar = strpos($s,'?') ? '&' : '?';
	$mine = get_my_url();
	if($mine and ! link_compare($mine,$s))
		return $s . $achar . 'zrl=' . urlencode($mine);
	return $s;
}

/**
 * @brief Get the user ID of the page owner
 *
 * Used from within PCSS themes to set theme parameters. If there's a
 * puid request variable, that is the "page owner" and normally their theme
 * settings take precedence; unless a local user sets the "always_my_theme"
 * system pconfig, which means they don't want to see anybody else's theme
 * settings except their own while on this site.
 *
 * @return int user ID
 * 
 * @note Returns local_user instead of user ID if "always_my_theme"
 *      is set to true
 */
function get_theme_uid() {
	$uid = (($_REQUEST['puid']) ? intval($_REQUEST['puid']) : 0);
	if(local_user()) {
		if((get_pconfig(local_user(),'system','always_my_theme')) || (! $uid))
			return local_user();
	}

	return $uid;
}