299 lines
		
	
	
		
			No EOL
		
	
	
		
			8.2 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			299 lines
		
	
	
		
			No EOL
		
	
	
		
			8.2 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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require_once('simplepie/simplepie.inc');
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function get_atom_elements($item) {
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	$res = array();
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	$author = $item->get_author();
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	$res['remote-name'] = $author->get_name();
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	$res['remote-link'] = $author->get_link();
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	$res['remote-avatar'] = $author->get_avatar();
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	$res['remote-id'] = $item->get_id();
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	$res['title'] = $item->get_title();
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	$res['body'] = $item->get_content();
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	if(strlen($res['body']) > 100000)
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		$res['body'] = substr($res['body'],0,10000) . "\r\n[Extremely large post truncated.]\r\n"  ;
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	$allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
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	if($allow && $allow[0]['data'] == 1)
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		$res['last-child'] = 1;
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	else
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		$res['last-child'] = 0;
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	$rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
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	if($rawcreated)
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		$res['created'] = $rawcreated[0]['data'];
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	$rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
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	if($rawedited)
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		$res['edited'] = $rawcreated[0]['data'];
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	$rawowner = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0', 'owner');
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	if($rawowner[0]['child']['http://purl.org/macgirvin/dfrn/1.0']['name'][0]['data'])
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		$res['owner-name'] = $rawowner[0]['child']['http://purl.org/macgirvin/dfrn/1.0']['name'][0]['data'];
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	if($rawowner[0]['child']['http://purl.org/macgirvin/dfrn/1.0']['uri'][0]['data'])
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		$res['owner-link'] = $rawowner[0]['child']['http://purl.org/macgirvin/dfrn/1.0']['uri'][0]['data'];
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	if($rawowner[0]['child']['http://purl.org/macgirvin/dfrn/1.0']['avatar'][0]['data'])
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		$res['owner-avatar'] = $rawowner[0]['child']['http://purl.org/macgirvin/dfrn/1.0']['avatar'][0]['data'];
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	return $res;
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}
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function post_remote($a,$arr) {
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	$arr['hash'] = random_string();
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	$arr['type'] = 'remote';
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	$arr['remote-name'] = notags(trim($arr['remote-name']));
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	$arr['remote-link'] = notags(trim($arr['remote-link']));
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	$arr['remote-avatar'] = notags(trim($arr['remote-avatar']));
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	$arr['owner-name'] = notags(trim($arr['owner-name']));
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	$arr['owner-link'] = notags(trim($arr['owner-link']));
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	$arr['owner-avatar'] = notags(trim($arr['owner-avatar']));
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	if(! strlen($arr['remote-avatar']))
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		$arr['remote-avatar'] = $a->get_baseurl() . '/images/default-profile-sm.jpg';
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	if(! strlen($arr['owner-avatar']))
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		$arr['owner-avatar'] = $a->get_baseurl() . '/images/default-profile-sm.jpg';
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	$arr['created'] = datetime_convert('UTC','UTC',$arr['created'],'Y-m-d H:i:s');
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	$arr['edited'] = datetime_convert('UTC','UTC',$arr['edited'],'Y-m-d H:i:s');
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	$arr['title'] = notags(trim($arr['title']));
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	$arr['body'] = escape_tags(trim($arr['body']));
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	$arr['last-child'] = intval($arr['last-child']);
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	$arr['visible'] = 1;
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	$arr['deleted'] = 0;
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	$local_parent = false;
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	if(isset($arr['parent_hash'])) {
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		$local_parent = true;
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		$parent = $arr['parent_hash'];
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		unset($arr['parent_hash']);
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	}
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	else {
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		$parent = $arr['parent_urn'];
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		unset($arr['parent_urn']);
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	}
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	$parent_id = 0;
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	dbesc_array($arr);
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	$r = q("INSERT INTO `item` (`" 
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			. implode("`, `", array_keys($arr)) 
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			. "`) VALUES ('" 
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			. implode("', '", array_values($arr)) 
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			. "')" );
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	if($local_parent) {
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		$r = q("SELECT `id` FROM `item` WHERE `hash` = '%s' AND `uid` = %d LIMIT 1",
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			dbesc($parent),
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			intval($arr['uid'])
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		);
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	}
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	else {
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		$r = q("SELECT `id` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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			dbesc($parent),
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			intval($arr['uid'])
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		);
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	}
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	if(count($r))
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		$parent_id = $r[0]['id'];
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	$r = q("SELECT `id` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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		$arr['remote-id'],
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		intval($arr['uid'])
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	);
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	if(count($r))
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		$current_post = $r[0]['id'];
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	$r = q("UPDATE `item` SET `parent` = %d WHERE `id` = %d LIMIT 1",
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		intval($parent_id),
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		intval($current_post)
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	);
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	return $current_post;
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}
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function dfrn_notify_post(&$a) {
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	$dfrn_id = notags(trim($_POST['dfrn_id']));
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	$challenge = notags(trim($_POST['challenge']));
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	$data = $_POST['data'];
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	$r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
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		dbesc($dfrn_id),
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		dbesc($challenge)
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	);
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	if(! count($r))
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		xml_status(3);
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	$r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
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		dbesc($dfrn_id),
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		dbesc($challenge)
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	);
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	// find the local user who owns this relationship.
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	$r = q("SELECT `id`, `uid` FROM `contact` WHERE `issued-id` = '%s' LIMIT 1",
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		dbesc($dfrn_id)
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	);
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	if(! count($r))
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		xml_status(3);
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	$importer = $r[0];
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	$feed = new SimplePie();
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	$feed->set_raw_data($data);
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	$feed->enable_order_by_date(false);
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	$feed->init();
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	foreach($feed->get_items() as $item) {
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		$rawdelete = $item->get_item_tags("http://purl.org/atompub/tombstones/1.0", 'deleted-entry');
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		print_r($rawdelete);
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		if($deleted) {
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			// pick out ref and when from attribs
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			// check hasn't happened already, verify ownership and then process it
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			continue;
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		}
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		$is_reply = false;		
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		$item_id = $item->get_id();
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		$rawthread = $item->get_item_tags("http://purl.org/syndication/thread/1.0",'in-reply-to');
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		if(isset($rawthread[0]['attribs']['']['ref'])) {
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			$is_reply = true;
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			$parent_urn = $rawthread[0]['attribs']['']['ref'];
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		}
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		if($is_reply) {
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			if($feed->get_item_quantity() == 1) {
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				// remote reply to our post. Import and then notify everybody else.
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				$datarray = get_atom_elements($item);
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				$urn = explode(':',$parent_urn);
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				$datarray['parent_hash'] = $urn[4];
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				$datarray['uid'] = $importer['uid'];
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				$datarray['contact-id'] = $importer['id'];
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				$r = post_remote($a,$datarray);
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				$url = bin2hex($a->get_baseurl());
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				proc_close(proc_open("php include/notifier.php $url $notify_type $r > notify.log &", array(),$foo));
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				return;
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			}
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			else {
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				// regular comment that is part of this total conversation. Have we seen it? If not, import it.
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				$item_id = $item->get_id();
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				$r = q("SELECT `uid`, `last-child` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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					dbesc($item_id),
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					intval($importer['uid'])
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				);
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				if(count($r)) {
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					$allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
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					if($allow && $allow[0]['data'] != $r[0]['last-child']) {
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						$r = q("UPDATE `item` SET `last-child` = %d WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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							intval($allow[0]['data']),
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							dbesc($item_id)
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						);
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					}
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					continue;
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				}
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				$datarray = get_atom_elements($item);
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				$datarray['parent_urn'] = $parent_urn;
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				$datarray['uid'] = $importer['uid'];
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				$datarray['contact-id'] = $importer['id'];
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				$r = post_remote($a,$datarray);
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				continue;
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			}
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		}
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		else {
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			// Head post of a conversation. Have we seen it? If not, import it.
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			$item_id = $item->get_id();
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			$r = q("SELECT `uid` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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				dbesc($item_id),
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				intval($importer['uid'])
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			);
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			if(count($r)) {
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				$allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
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				if($allow && $allow[0]['data'] != $r[0]['last-child']) {
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					$r = q("UPDATE `item` SET `last-child` = %d WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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						intval($allow[0]['data']),
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						dbesc($item_id)
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					);
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				}
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				continue;
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			}
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			$datarray = get_atom_elements($item);
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			$datarray['parent_urn'] = $item_id;
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			$datarray['uid'] = $importer['uid'];
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			$datarray['contact-id'] = $importer['id'];
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			$r = post_remote($a,$datarray);
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			continue;
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		}
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	}
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	killme();
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}
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function dfrn_notify_content(&$a) {
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	if(x($_GET,'dfrn_id')) {
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		// initial communication from external contact
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		$hash = random_string();
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		$status = 0;
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		$r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
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		$r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
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			VALUES( '%s', '%s', '%s') ",
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			dbesc($hash),
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			dbesc(notags(trim($_GET['dfrn_id']))),
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			intval(time() + 60 )
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		);
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		$r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' AND `blocked` = 0 LIMIT 1",
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			dbesc($_GET['dfrn_id']));
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		if((! count($r)) || (! strlen($r[0]['prvkey'])))
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			$status = 1;
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		$challenge = '';
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		openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
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		$challenge = bin2hex($challenge);
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		echo '<?xml version="1.0" encoding="UTF-8"?><dfrn_notify><status>' .$status . '</status><dfrn_id>' . $_GET['dfrn_id'] . '</dfrn_id>'
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			. '<challenge>' . $challenge . '</challenge></dfrn_notify>' . "\r\n" ;
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		session_write_close();
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		exit;
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	}
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} |