streams/Zotlabs/Module/Profile.php

<?php
namespace Zotlabs\Module;

use App;
use Zotlabs\Web\Controller;
use Zotlabs\Lib\Libprofile;
use Zotlabs\Lib\ActivityStreams;
use Zotlabs\Lib\Activity;
use Zotlabs\Lib\LDSignatures;
use Zotlabs\Web\HTTPSig;


require_once("include/bbcode.php");
require_once('include/security.php');
require_once('include/conversation.php');
require_once('include/acl_selectors.php');



class Profile extends \Zotlabs\Web\Controller {

	function init() {
	
		if(argc() > 1)
			$which = argv(1);
		else {
			notice( t('Requested profile is not available.') . EOL );
			\App::$error = 404;
			return;
		}

		nav_set_selected('Profile');
	
		$profile = '';
		$channel = \App::get_channel();
	
		if((local_channel()) && (argc() > 2) && (argv(2) === 'view')) {
			$which = $channel['channel_address'];
			$profile = argv(1);		
			$r = q("select profile_guid from profile where id = %d and uid = %d limit 1",
				intval($profile),
				intval(local_channel())
			);
			if(! $r)
				$profile = '';
			$profile = $r[0]['profile_guid'];
		}
	
		head_add_link( [ 
			'rel'   => 'alternate', 
			'type'  => 'application/atom+xml',
			'title' => t('Posts and comments'),
			'href'  => z_root() . '/feed/' . $which
		]);

		head_add_link( [ 
			'rel'   => 'alternate', 
			'type'  => 'application/atom+xml',
			'title' => t('Only posts'),
			'href'  => z_root() . '/feed/' . $which . '?f=&top=1'
		]);


		if(! $profile) {
			$x = q("select channel_id as profile_uid from channel where channel_address = '%s' limit 1",
				dbesc(argv(1))
			);
			if($x) {
				\App::$profile = $x[0];
			}
		}
	

		if(ActivityStreams::is_as_request()) {
			$chan = channelx_by_nick(argv(1));
			if(! $chan)
				http_status_exit(404, 'Not found');
			$p = Activity::encode_person($chan,true,((defined('NOMADIC')) ? false : true));
			if(! $p) {
				http_status_exit(404, 'Not found');
			}
			$x = [
				'@context' => [
					ACTIVITYSTREAMS_JSONLD_REV,
					'https://w3id.org/security/v1',
					z_root() . ZOT_APSCHEMA_REV
				],
				'type' => 'Profile',
				'describes' => $p
			];

			$headers = [];
			$headers['Content-Type'] = 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"' ;
			$x['signature'] = LDSignatures::sign($x,$chan);
			$ret = json_encode($x, JSON_UNESCAPED_SLASHES);
			$headers['Digest'] = HTTPSig::generate_digest_header($ret);
			$headers['(request-target)'] = strtolower($_SERVER['REQUEST_METHOD']) . ' ' . $_SERVER['REQUEST_URI'];
			$h = HTTPSig::create_sig($headers,$chan['channel_prvkey'],channel_url($chan));
			HTTPSig::set_headers($h);
			echo $ret;
			killme();
		}

		Libprofile::load($which,$profile);	
	
	}
	
	function get() {
	
		if(observer_prohibited(true)) {
			return login();
		}
	
		$groups = array();



		$tab = 'profile';
		$o = '';
	
		if(! (perm_is_allowed(\App::$profile['profile_uid'],get_observer_hash(), 'view_profile'))) {
			notice( t('Permission denied.') . EOL);
			return;
		}
	


		if(argc() > 2 && argv(2) === 'vcard') {
			header('Content-type: text/vcard');
			header('content-disposition: attachment; filename="' . t('vcard') . '-' . $profile['channel_address'] . '.vcf"' );
			echo \App::$profile['profile_vcard'];
			killme();
		}
	
		$is_owner = ((local_channel()) && (local_channel() == \App::$profile['profile_uid']) ? true : false);
	
		if(\App::$profile['hidewall'] && (! $is_owner) && (! remote_channel())) {
			notice( t('Permission denied.') . EOL);
			return;
		}
		
		head_add_link([ 
			'rel'   => 'alternate',
			'type'  => 'application/json+oembed',
			'href'  => z_root() . '/oep?f=&url=' . urlencode(z_root() . '/' . \App::$query_string),
			'title' => 'oembed'
		]);

		$o .= Libprofile::advanced();
		call_hooks('profile_advanced',$o);
		return $o;
	
	}
	
}