begin moving diaspora to plugin

2 files changed, 8 insertions, 3039 deletions

diff --git a/include/diaspora.php b/include/diaspora.php
deleted file mode 100755
index b208257c6..000000000
--- a/include/diaspora.php
+++ /dev/null
@@ -1,3021 +0,0 @@
-<?php
-
-require_once('include/crypto.php');
-require_once('include/items.php');
-require_once('include/bb2diaspora.php');
-require_once('include/contact_selectors.php');
-//require_once('include/queue_fn.php');
-//require_once('include/lock.php');
-
-function diaspora_dispatch_public($msg) {
-
-	$enabled = intval(get_config('system','diaspora_enabled'));
-	if(! $enabled) {
-		logger('mod-diaspora: disabled');
-		return;
-	}
-
-	$sys_disabled = true;
-
-	if(! get_config('system','disable_discover_tab')) {
-		$sys_disabled = get_config('system','disable_diaspora_discover_tab');
-	}
-	$sys = (($sys_disabled) ? null : get_sys_channel());
-
-	// find everybody following or allowing this author
-
-	$r = q("SELECT * from channel where channel_id in ( SELECT abook_channel from abook left join xchan on abook_xchan = xchan_hash WHERE xchan_network like '%%diaspora%%' and xchan_addr = '%s' ) and channel_removed = 0 ",
-		dbesc($msg['author'])
-	);
-
-	// also need to look for those following public streams
-
-	if($r) {
-		foreach($r as $rr) {
-			logger('diaspora_public: delivering to: ' . $rr['channel_name'] . ' (' . $rr['channel_address'] . ') ');
-			diaspora_dispatch($rr,$msg);
-		}
-	}
-	else {
-		if(! $sys)
-			logger('diaspora_public: no subscribers');
-	}
-
-	if($sys) {
-		$sys['system'] = true;
-		logger('diaspora_public: delivering to sys.');
-		diaspora_dispatch($sys,$msg);
-	}
-}
-
-
-
-function diaspora_dispatch($importer,$msg) {
-
-	$ret = 0;
-
-	if(! array_key_exists('system',$importer))
-		$importer['system'] = false;
-
-	$enabled = intval(get_config('system','diaspora_enabled'));
-	if(! $enabled) {
-		logger('mod-diaspora: disabled');
-		return;
-	}
-
-	$allowed = get_pconfig($importer['channel_id'],'system','diaspora_allowed');
-
-	if(! intval($allowed)) {
-		logger('mod-diaspora: disallowed for channel ' . $importer['channel_name']);
-		return;
-	}
-
-	// php doesn't like dashes in variable names
-
-	$msg['message'] = str_replace(
-			array('<activity_streams-photo>','</activity_streams-photo>'),
-			array('<asphoto>','</asphoto>'),
-			$msg['message']);
-
-
-	$parsed_xml = parse_xml_string($msg['message'],false);
-
-	$xmlbase = $parsed_xml->post;
-
-//	logger('diaspora_dispatch: ' . print_r($xmlbase,true), LOGGER_DATA);
-
-
-	if($xmlbase->request) {
-		$ret = diaspora_request($importer,$xmlbase->request);
-	}
-	elseif($xmlbase->status_message) {
-		$ret = diaspora_post($importer,$xmlbase->status_message,$msg);
-	}
-	elseif($xmlbase->profile) {
-		$ret = diaspora_profile($importer,$xmlbase->profile,$msg);
-	}
-	elseif($xmlbase->comment) {
-		$ret = diaspora_comment($importer,$xmlbase->comment,$msg);
-	}
-	elseif($xmlbase->like) {
-		$ret = diaspora_like($importer,$xmlbase->like,$msg);
-	}
-	elseif($xmlbase->asphoto) {
-		$ret = diaspora_asphoto($importer,$xmlbase->asphoto,$msg);
-	}
-	elseif($xmlbase->reshare) {
-		$ret = diaspora_reshare($importer,$xmlbase->reshare,$msg);
-	}
-	elseif($xmlbase->retraction) {
-		$ret = diaspora_retraction($importer,$xmlbase->retraction,$msg);
-	}
-	elseif($xmlbase->signed_retraction) {
-		$ret = diaspora_signed_retraction($importer,$xmlbase->signed_retraction,$msg);
-	}
-	elseif($xmlbase->relayable_retraction) {
-		$ret = diaspora_signed_retraction($importer,$xmlbase->relayable_retraction,$msg);
-	}
-	elseif($xmlbase->photo) {
-		$ret = diaspora_photo($importer,$xmlbase->photo,$msg);
-	}
-	elseif($xmlbase->conversation) {
-		$ret = diaspora_conversation($importer,$xmlbase->conversation,$msg);
-	}
-	elseif($xmlbase->message) {
-		$ret = diaspora_message($importer,$xmlbase->message,$msg);
-	}
-	else {
-		logger('diaspora_dispatch: unknown message type: ' . print_r($xmlbase,true));
-	}
-	return $ret;
-}
-
-
-function diaspora_is_blacklisted($s) {
-
-	$bl1 = get_config('system','blacklisted_sites');
-	if(is_array($bl1) && $bl1) {
-		foreach($bl1 as $bl) {
-			if($bl && strpos($s,$bl) !== false) {
-				logger('diaspora_is_blacklisted: blacklisted ' . $s);
-				return true;
-			}
-		}
-	}
-	return false;
-}
-
-function diaspora_process_outbound($arr) {
-
-/*
-
-	We are passed the following array from the notifier, providing everything we need to make delivery decisions.
-
-			diaspora_process_outbound(array(
-				'channel' => $channel,
-				'env_recips' => $env_recips,
-				'recipients' => $recipients,
-				'item' => $item,
-				'target_item' => $target_item,
-				'hub' => $hub,
-				'top_level_post' => $top_level_post,
-				'private' => $private,
-				'followup' => $followup,
-				'relay_to_owner' => $relay_to_owner,
-				'uplink' => $uplink,
-				'cmd' => $cmd,
-				'expire' =>	$expire,
-				'mail' => $mail,
-				'location' => $location,
-				'fsuggest' => $fsuggest,
-				'normal_mode' => $normal_mode,
-				'packet_type' => $packet_type,
-				'walltowall' => $walltowall,
-			));
-*/
-
-
-	$allowed = get_pconfig($arr['channel']['channel_id'],'system','diaspora_allowed');
-
-	if(! intval($allowed)) {
-		logger('mod-diaspora: disallowed for channel ' . $arr['channel']['channel_name']);
-		return;
-	}
-
-
-	if($arr['location'])
-		return;
-
-
-	$target_item = $arr['target_item'];
-
-	if($target_item && array_key_exists('item_obscured',$target_item) && intval($target_item['item_obscured'])) {
-		$key = get_config('system','prvkey');
-		if($target_item['title'])
-			$target_item['title'] = crypto_unencapsulate(json_decode($target_item['title'],true),$key);
-		if($target_item['body'])
-			$target_item['body'] = crypto_unencapsulate(json_decode($target_item['body'],true),$key);
-	}
-
-
-
-	if($arr['env_recips']) {
-		$hashes = array();
-
-		// re-explode the recipients, but only for this hub/pod
-
-		foreach($arr['env_recips'] as $recip)
-			$hashes[] = "'" . $recip['hash'] . "'";
-
-		$r = q("select * from xchan left join hubloc on xchan_hash = hubloc_hash where hubloc_url = '%s' 
-			and xchan_hash in (" . implode(',', $hashes) . ") and xchan_network in ('diaspora', 'friendica-over-diaspora') ",
-			dbesc($arr['hub']['hubloc_url'])
-		);
-
-		if(! $r) {
-			logger('diaspora_process_outbound: no recipients');
-			return; 
-		}
-
-		foreach($r as $contact) {
-	
-			if($arr['mail']) {
-				diaspora_send_mail($arr['item'],$arr['channel'],$contact);
-				continue;
-			}
-
-			if(! $arr['normal_mode'])
-				continue;
-
-			// special handling for followup to public post
-			// all other public posts processed as public batches further below
-
-			if((! $arr['private']) && ($arr['followup'])) {
-				diaspora_send_followup($target_item,$arr['channel'],$contact, true);
-				continue;
-			}
-
-			if(! $contact['xchan_pubkey'])
-				continue;
-
-			if(intval($target_item['item_deleted']) 
-				&& (($target_item['mid'] === $target_item['parent_mid']) || $arr['followup'])) {
-				// send both top-level retractions and relayable retractions for owner to relay
-				diaspora_send_retraction($target_item,$arr['channel'],$contact);
-				continue;
-			}
-			elseif($arr['followup']) {
-				// send comments and likes to owner to relay
-				diaspora_send_followup($target_item,$arr['channel'],$contact);
-				continue;
-			}
-
-			elseif($target_item['mid'] !== $target_item['parent_mid']) {
-				// we are the relay - send comments, likes and relayable_retractions
-				// (of comments and likes) to our conversants
-				diaspora_send_relay($target_item,$arr['channel'],$contact);
-				continue;
-			}
-			elseif($arr['top_level_post']) {
-				diaspora_send_status($target_item,$arr['channel'],$contact);
-				continue;
-			}
-		}
-	}
-	else {
-		// public message
-
-		$contact = $arr['hub'];
-
-		if(intval($target_item['item_deleted']) 
-			&& ($target_item['mid'] === $target_item['parent_mid'])) {
-			// top-level retraction
-			logger('delivery: diaspora retract: ' . $loc);
-			diaspora_send_retraction($target_item,$arr['channel'],$contact,true);
-			return;
-		}
-		elseif($target_item['mid'] !== $target_item['parent_mid']) {
-			// we are the relay - send comments, likes and relayable_retractions to our conversants
-			logger('delivery: diaspora relay: ' . $loc);
-			diaspora_send_relay($target_item,$arr['channel'],$contact,true);
-			return;
-		}
-		elseif($arr['top_level_post']) {
-			logger('delivery: diaspora status: ' . $loc);
-			diaspora_send_status($target_item,$arr['channel'],$contact,true);
-			return;
-		}
-
-	}
-
-}
-
-
-function diaspora_handle_from_contact($contact_hash) {
-
-	logger("diaspora_handle_from_contact: contact id is " . $contact_hash, LOGGER_DEBUG);
-
-	$r = q("SELECT xchan_addr from xchan where xchan_hash = '%s' limit 1",
-		dbesc($contact_hash)
-	);
-	if($r) {
-		return $r[0]['xchan_addr'];
-	}
-	return false;
-}
-
-function diaspora_get_contact_by_handle($uid,$handle) {
-
-	if(diaspora_is_blacklisted($handle))
-		return false;
-	require_once('include/identity.php');
-
-	$sys = get_sys_channel();
-	if(($sys) && ($sys['channel_id'] == $uid)) {
-		$r = q("SELECT * FROM xchan where xchan_addr = '%s' limit 1",
-			dbesc($handle)
-		);
-	}
-	else {
-		$r = q("SELECT * FROM abook left join xchan on xchan_hash = abook_xchan where xchan_addr = '%s' and abook_channel = %d limit 1",
-			dbesc($handle),
-			intval($uid)
-		);
-	}
-
-	return (($r) ? $r[0] : false);
-}
-
-function find_diaspora_person_by_handle($handle) {
-
-	$person = false;
-	$refresh = false;
-
-	if(diaspora_is_blacklisted($handle))
-		return false;
-
-	$r = q("select * from xchan where xchan_addr = '%s' limit 1",
-		dbesc($handle)
-	);
-	if($r) {
-		$person = $r[0];
-		logger('find_diaspora_person_by handle: in cache ' . print_r($r,true), LOGGER_DATA);
-		if($person['xchan_name_date'] < datetime_convert('UTC','UTC', 'now - 1 month')) {
-			logger('Updating Diaspora cached record for ' . $handle);
-			$refresh = true;
-		}
-	}
-
-	if((! $person) || ($refresh)) {
-
-		// try webfinger. Make sure to distinguish between diaspora, 
-		// hubzilla w/diaspora protocol and friendica w/diaspora protocol.
-
-		$result = discover_by_webbie($handle);
-		if($result) {
-			$r = q("select * from xchan where xchan_addr = '%s' limit 1",
-				dbesc(str_replace('acct:','',$handle))
-			);
-			if($r) {
-				$person = $r[0];
-				logger('find_diaspora_person_by handle: discovered ' . print_r($r,true), LOGGER_DATA);
-			}
-		}
-	}
-
-	return $person;
-}
-
-
-function get_diaspora_key($handle) {
-	logger('Fetching diaspora key for: ' . $handle, LOGGER_DEBUG);
-	$r = find_diaspora_person_by_handle($handle);
-	return(($r) ? $r['xchan_pubkey'] : '');
-}
-
-
-function diaspora_pubmsg_build($msg,$channel,$contact,$prvkey,$pubkey) {
-
-	$a = get_app();
-
-	logger('diaspora_pubmsg_build: ' . $msg, LOGGER_DATA);
-
-    $handle = $channel['channel_address'] . '@' . get_app()->get_hostname();
-
-
-	$b64url_data = base64url_encode($msg,false);
-
-	$data = str_replace(array("\n","\r"," ","\t"),array('','','',''),$b64url_data);
-
-	$type = 'application/xml';
-	$encoding = 'base64url';
-	$alg = 'RSA-SHA256';
-
-	$signable_data = $data  . '.' . base64url_encode($type,false) . '.'
-		. base64url_encode($encoding,false) . '.' . base64url_encode($alg,false) ;
-
-	$signature = rsa_sign($signable_data,$prvkey);
-	$sig = base64url_encode($signature,false);
-
-$magic_env = <<< EOT
-<?xml version='1.0' encoding='UTF-8'?>
-<diaspora xmlns="https://joindiaspora.com/protocol" xmlns:me="http://salmon-protocol.org/ns/magic-env" >
-  <header>
-	<author_id>$handle</author_id>
-  </header>
-  <me:env>
-	<me:encoding>base64url</me:encoding>
-	<me:alg>RSA-SHA256</me:alg>
-	<me:data type="application/xml">$data</me:data>
-	<me:sig>$sig</me:sig>
-  </me:env>
-</diaspora>
-EOT;
-
-	logger('diaspora_pubmsg_build: magic_env: ' . $magic_env, LOGGER_DATA);
-	return $magic_env;
-
-}
-
-
-
-
-function diaspora_msg_build($msg,$channel,$contact,$prvkey,$pubkey,$public = false) {
-	$a = get_app();
-
-	if($public)
-		return diaspora_pubmsg_build($msg,$channel,$contact,$prvkey,$pubkey);
-
-	logger('diaspora_msg_build: ' . $msg, LOGGER_DATA);
-
-	// without a public key nothing will work
-
-	if(! $pubkey) {
-		logger('diaspora_msg_build: pubkey missing: contact id: ' . $contact['abook_id']);
-		return '';
-	}
-
-	$inner_aes_key = random_string(32);
-	$b_inner_aes_key = base64_encode($inner_aes_key);
-	$inner_iv = random_string(16);
-	$b_inner_iv = base64_encode($inner_iv);
-
-	$outer_aes_key = random_string(32);
-	$b_outer_aes_key = base64_encode($outer_aes_key);
-	$outer_iv = random_string(16);
-	$b_outer_iv = base64_encode($outer_iv);
-
-    $handle = $channel['channel_address'] . '@' . get_app()->get_hostname();
-
-	$padded_data = pkcs5_pad($msg,16);
-	$inner_encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $padded_data, MCRYPT_MODE_CBC, $inner_iv);
-
-	$b64_data = base64_encode($inner_encrypted);
-
-
-	$b64url_data = base64url_encode($b64_data,false);
-	$data = str_replace(array("\n","\r"," ","\t"),array('','','',''),$b64url_data);
-
-	$type = 'application/xml';
-	$encoding = 'base64url';
-	$alg = 'RSA-SHA256';
-
-	$signable_data = $data  . '.' . base64url_encode($type,false) . '.'
-		. base64url_encode($encoding,false) . '.' . base64url_encode($alg,false) ;
-
-	logger('diaspora_msg_build: signable_data: ' . $signable_data, LOGGER_DATA);
-
-	$signature = rsa_sign($signable_data,$prvkey);
-	$sig = base64url_encode($signature,false);
-
-$decrypted_header = <<< EOT
-<decrypted_header>
-  <iv>$b_inner_iv</iv>
-  <aes_key>$b_inner_aes_key</aes_key>
-  <author_id>$handle</author_id>
-</decrypted_header>
-EOT;
-
-	$decrypted_header = pkcs5_pad($decrypted_header,16);
-
-	$ciphertext = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $outer_aes_key, $decrypted_header, MCRYPT_MODE_CBC, $outer_iv);
-
-	$outer_json = json_encode(array('iv' => $b_outer_iv,'key' => $b_outer_aes_key));
-
-	$encrypted_outer_key_bundle = '';
-	openssl_public_encrypt($outer_json,$encrypted_outer_key_bundle,$pubkey);
-
-	$b64_encrypted_outer_key_bundle = base64_encode($encrypted_outer_key_bundle);
-
-	logger('outer_bundle: ' . $b64_encrypted_outer_key_bundle . ' key: ' . $pubkey, LOGGER_DATA);
-
-	$encrypted_header_json_object = json_encode(array('aes_key' => base64_encode($encrypted_outer_key_bundle), 
-		'ciphertext' => base64_encode($ciphertext)));
-	$cipher_json = base64_encode($encrypted_header_json_object);
-
-	$encrypted_header = '<encrypted_header>' . $cipher_json . '</encrypted_header>';
-
-$magic_env = <<< EOT
-<?xml version='1.0' encoding='UTF-8'?>
-<diaspora xmlns="https://joindiaspora.com/protocol" xmlns:me="http://salmon-protocol.org/ns/magic-env" >
-  $encrypted_header
-  <me:env>
-	<me:encoding>base64url</me:encoding>
-	<me:alg>RSA-SHA256</me:alg>
-	<me:data type="application/xml">$data</me:data>
-	<me:sig>$sig</me:sig>
-  </me:env>
-</diaspora>
-EOT;
-
-	logger('diaspora_msg_build: magic_env: ' . $magic_env, LOGGER_DATA);
-	return $magic_env;
-
-}
-
-/**
- *
- * diaspora_decode($importer,$xml)
- *   array $importer -> from user table
- *   string $xml -> urldecoded Diaspora salmon 
- *
- * Returns array
- * 'message' -> decoded Diaspora XML message
- * 'author' -> author diaspora handle
- * 'key' -> author public key (converted to pkcs#8)
- *
- * Author and key are used elsewhere to save a lookup for verifying replies and likes
- */
-
-
-function diaspora_decode($importer,$xml) {
-
-	$public = false;
-	$basedom = parse_xml_string($xml);
-
-	$children = $basedom->children('https://joindiaspora.com/protocol');
-
-	if($children->header) {
-		$public = true;
-		$author_link = str_replace('acct:','',$children->header->author_id);
-	}
-	else {
-
-		$encrypted_header = json_decode(base64_decode($children->encrypted_header));
-
-		$encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
-		$ciphertext = base64_decode($encrypted_header->ciphertext);
-
-		$outer_key_bundle = '';
-		openssl_private_decrypt($encrypted_aes_key_bundle,$outer_key_bundle,$importer['channel_prvkey']);
-
-		$j_outer_key_bundle = json_decode($outer_key_bundle);
-
-		$outer_iv = base64_decode($j_outer_key_bundle->iv);
-		$outer_key = base64_decode($j_outer_key_bundle->key);
-
-		$decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $outer_key, $ciphertext, MCRYPT_MODE_CBC, $outer_iv);
-
-
-		$decrypted = pkcs5_unpad($decrypted);
-
-		/**
-		 * $decrypted now contains something like
-		 *
-		 *  <decrypted_header>
-		 *	 <iv>8e+G2+ET8l5BPuW0sVTnQw==</iv>
-		 *	 <aes_key>UvSMb4puPeB14STkcDWq+4QE302Edu15oaprAQSkLKU=</aes_key>
-
-***** OBSOLETE
-
-		 *	 <author>
-		 *	   <name>Ryan Hughes</name>
-		 *	   <uri>acct:galaxor@diaspora.pirateship.org</uri>
-		 *	 </author>
-
-***** CURRENT
-
-		 *	 <author_id>galaxor@diaspora.priateship.org</author_id>
-
-***** END DIFFS
-
-		 *  </decrypted_header>
-		 */
-
-		logger('decrypted: ' . $decrypted, LOGGER_DATA);
-		$idom = parse_xml_string($decrypted,false);
-
-		$inner_iv = base64_decode($idom->iv);
-		$inner_aes_key = base64_decode($idom->aes_key);
-
-		$author_link = str_replace('acct:','',$idom->author_id);
-
-	}
-
-	$dom = $basedom->children(NAMESPACE_SALMON_ME);
-
-	// figure out where in the DOM tree our data is hiding
-
-	if($dom->provenance->data)
-		$base = $dom->provenance;
-	elseif($dom->env->data)
-		$base = $dom->env;
-	elseif($dom->data)
-		$base = $dom;
-
-	if(! $base) {
-		logger('mod-diaspora: unable to locate salmon data in xml ');
-		http_status_exit(400);
-	}
-
-
-	// Stash the signature away for now. We have to find their key or it won't be good for anything.
-	$signature = base64url_decode($base->sig);
-
-	// unpack the  data
-
-	// strip whitespace so our data element will return to one big base64 blob
-	$data = str_replace(array(" ","\t","\r","\n"),array("","","",""),$base->data);
-
-
-	// stash away some other stuff for later
-
-	$type = $base->data[0]->attributes()->type[0];
-	$keyhash = $base->sig[0]->attributes()->keyhash[0];
-	$encoding = $base->encoding;
-	$alg = $base->alg;
-
-	$signed_data = $data  . '.' . base64url_encode($type,false) . '.' . base64url_encode($encoding,false) . '.' . base64url_encode($alg,false);
-
-
-	// decode the data
-	$data = base64url_decode($data);
-
-
-	if($public) {
-		$inner_decrypted = $data;
-	}
-	else {
-
-		// Decode the encrypted blob
-
-		$inner_encrypted = base64_decode($data);
-		$inner_decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $inner_encrypted, MCRYPT_MODE_CBC, $inner_iv);
-		$inner_decrypted = pkcs5_unpad($inner_decrypted);
-	}
-
-	if(! $author_link) {
-		logger('mod-diaspora: Could not retrieve author URI.');
-		http_status_exit(400);
-	}
-
-	// Once we have the author URI, go to the web and try to find their public key
-	// (first this will look it up locally if it is in the fcontact cache)
-	// This will also convert diaspora public key from pkcs#1 to pkcs#8
-
-	logger('mod-diaspora: Fetching key for ' . $author_link );
- 	$key = get_diaspora_key($author_link);
-
-	if(! $key) {
-		logger('mod-diaspora: Could not retrieve author key.');
-		http_status_exit(400);
-	}
-
-	$verify = rsa_verify($signed_data,$signature,$key);
-
-	if(! $verify) {
-		logger('mod-diaspora: Message did not verify. Discarding.');
-		http_status_exit(400);
-	}
-
-	logger('mod-diaspora: Message verified.');
-
-	return array('message' => $inner_decrypted, 'author' => $author_link, 'key' => $key);
-
-}
-
-
-/* sender is now sharing with recipient */
-
-function diaspora_request($importer,$xml) {
-
-	$a = get_app();
-
-	$sender_handle = unxmlify($xml->sender_handle);
-	$recipient_handle = unxmlify($xml->recipient_handle);
-
-	if(! $sender_handle || ! $recipient_handle)
-		return;
-
-
-	// Do we already have an abook record? 
-
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$sender_handle);
-
-	if($contact && $contact['abook_id']) {
-
-		// perhaps we were already sharing with this person. Now they're sharing with us.
-		// That makes us friends. Maybe.
-
-		// Please note some of these permissions such as PERMS_R_PAGES are impossible for Disapora.
-		// They cannot authenticate to our system.
-
-		$newperms = PERMS_R_STREAM|PERMS_R_PROFILE|PERMS_R_PHOTOS|PERMS_R_ABOOK|PERMS_W_STREAM|PERMS_W_COMMENT|PERMS_W_MAIL|PERMS_W_CHAT|PERMS_R_STORAGE|PERMS_R_PAGES;
-
-		$r = q("update abook set abook_their_perms = %d where abook_id = %d and abook_channel = %d",
-			intval($newperms),
-			intval($contact['abook_id']),
-			intval($importer['channel_id'])
-		);
-
-		return;
-	}
-
-	$ret = find_diaspora_person_by_handle($sender_handle);
-
-	if((! $ret) || (! strstr($ret['xchan_network'],'diaspora'))) {
-		logger('diaspora_request: Cannot resolve diaspora handle ' . $sender_handle . ' for ' . $recipient_handle);
-		return;
-	}
-
-
-//FIXME
-/*
-	if(feature_enabled($channel['channel_id'],'premium_channel')) {
-		$myaddr = $importer['channel_address'] . '@' .  get_app()->get_hostname();
-		$cnv = random_string();
-		$mid = random_string();
-
-		$msg = t('You have started sharing with a $Projectname premium channel.');
-		$msg .= t('$Projectname premium channels are not available for sharing with Diaspora members. This sharing request has been blocked.') . "\r";
-
-		$msg .= t('Please do not reply to this message, as this channel is not sharing with you and any reply will not be seen by the recipient.') . "\r";
-
-		$created = datetime_convert('UTC','UTC',$item['created'],'Y-m-d H:i:s \U\T\C');
-		$signed_text =  $mid . ';' . $cnv . ';' . $msg .  ';'
-        . $created . ';' . $myaddr . ';' . $cnv;
-
-		$sig = base64_encode(rsa_sign($signed_text,$importer['channel_prvkey'],'sha256'));
-
-		$conv = array(
-			'guid' => xmlify($cnv),
-			'subject' => xmlify(t('Sharing request failed.')),
-			'created_at' => xmlify($created),
-			'diaspora_handle' => xmlify($myaddr),
-			'participant_handles' => xmlify($myaddr . ';' . $sender_handle)
-		);
-
-		$msg = array(
-			'guid' => xmlify($mid),
-			'parent_guid' => xmlify($cnv),
-			'parent_author_signature' => xmlify($sig),
-			'author_signature' => xmlify($sig),
-			'text' => xmlify($msg),
-			'created_at' => xmlify($created),
-			'diaspora_handle' => xmlify($myaddr),
-			'conversation_guid' => xmlify($cnv)
-		);
-
-		$conv['messages'] = array($msg);
-		$tpl = get_markup_template('diaspora_conversation.tpl');
-		$xmsg = replace_macros($tpl, array('$conv' => $conv));
-
-		$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($xmsg,$importer,$ret,$importer['channel_prvkey'],$ret['xchan_pubkey'],false)));
-
-		diaspora_transmit($importer,$ret,$slap,false);
-		return;
-	}
-
-*/
-// End FIXME
-
-
-	$role = get_pconfig($channel['channel_id'],'system','permissions_role');
-	if($role) {
-		$x = get_role_perms($role);
-		if($x['perms_auto'])
-		$default_perms = $x['perms_accept'];
-	}
-	if(! $default_perms)
-		$default_perms = intval(get_pconfig($importer['channel_id'],'system','autoperms'));
-				
-	$their_perms = PERMS_R_STREAM|PERMS_R_PROFILE|PERMS_R_PHOTOS|PERMS_R_ABOOK|PERMS_W_STREAM|PERMS_W_COMMENT|PERMS_W_MAIL|PERMS_W_CHAT|PERMS_R_STORAGE|PERMS_R_PAGES;
-
-
-	$closeness = get_pconfig($importer['channel_id'],'system','new_abook_closeness');
-	if($closeness === false)
-		$closeness = 80;
-
-
-	$r = q("insert into abook ( abook_account, abook_channel, abook_xchan, abook_my_perms, abook_their_perms, abook_closeness, abook_created, abook_updated, abook_connected, abook_dob, abook_pending) values ( %d, %d, '%s', %d, %d, %d, '%s', '%s', '%s', '%s', %d )",
-		intval($importer['channel_account_id']),
-		intval($importer['channel_id']),
-		dbesc($ret['xchan_hash']),
-		intval($default_perms),
-		intval($their_perms),
-		intval($closeness),
-		dbesc(datetime_convert()),
-		dbesc(datetime_convert()),
-		dbesc(datetime_convert()),
-		dbesc(NULL_DATE),
-		intval(($default_perms) ? 0 : 1)
-	);
-		
-
-	if($r) {
-		logger("New Diaspora introduction received for {$importer['channel_name']}");
-
-		$new_connection = q("select * from abook left join xchan on abook_xchan = xchan_hash left join hubloc on hubloc_hash = xchan_hash where abook_channel = %d and abook_xchan = '%s' order by abook_created desc limit 1",
-			intval($importer['channel_id']),
-			dbesc($ret['xchan_hash'])
-		);
-		if($new_connection) {
-			require_once('include/enotify.php');
-			notification(array(
-				'type'	     => NOTIFY_INTRO,
-				'from_xchan'   => $ret['xchan_hash'],
-				'to_xchan'     => $importer['channel_hash'],
-				'link'         => z_root() . '/connedit/' . $new_connection[0]['abook_id'],
-			));
-
-
-			if($default_perms) {
-				// Send back a sharing notification to them
-				diaspora_share($importer,$new_connection[0]);
-		
-			}
-
-			$clone = array();
-			foreach($new_connection[0] as $k => $v) {
-				if(strpos($k,'abook_') === 0) {
-					$clone[$k] = $v;
-				}
-			}
-			unset($clone['abook_id']);
-			unset($clone['abook_account']);
-			unset($clone['abook_channel']);
-
-			build_sync_packet($importer['channel_id'], array('abook' => array($clone)));
-
-		}
-	}
-
-	// find the abook record we just created
-
-	$contact_record = diaspora_get_contact_by_handle($importer['channel_id'],$sender_handle);
-
-	if(! $contact_record) {
-		logger('diaspora_request: unable to locate newly created contact record.');
-		return;
-	}
-
-	/** If there is a default group for this channel, add this member to it */
-
-	if($importer['channel_default_group']) {
-		require_once('include/group.php');
-		$g = group_rec_byhash($importer['channel_id'],$importer['channel_default_group']);
-		if($g)
-			group_add_member($importer['channel_id'],'',$contact_record['xchan_hash'],$g['id']);
-	}
-
-	return;
-}
-
-
-
-function diaspora_post($importer,$xml,$msg) {
-
-	$a = get_app();
-	$guid = notags(unxmlify($xml->guid));
-	$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
-	$app = notags(xmlify($xml->provider_display_name));
-
-
-	if($diaspora_handle != $msg['author']) {
-		logger('diaspora_post: Potential forgery. Message handle is not the same as envelope sender.');
-		return 202;
-	}
-
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$diaspora_handle);
-	if(! $contact)
-		return;
-
-
-
-	if(! $app) {
-		if(strstr($contact['xchan_network'],'friendica'))
-			$app = 'Friendica';
-		else
-			$app = 'Diaspora';
-	}
-
-
-	$search_guid = ((strlen($guid) == 64) ? $guid . '%' : $guid);
-
-	$r = q("SELECT id FROM item WHERE uid = %d AND mid like '%s' LIMIT 1",
-		intval($importer['channel_id']),
-		dbesc($search_guid)
-	);
-
-	if($r) {
-		// check dates if post editing is implemented
-		logger('diaspora_post: message exists: ' . $guid);
-		return;
-	}
-
-	$created = unxmlify($xml->created_at);
-	$private = ((unxmlify($xml->public) == 'false') ? 1 : 0);
-
-	$body = diaspora2bb($xml->raw_message);
-
-	if($xml->photo) {
-		$body = '[img]' . $xml->photo->remote_photo_path . $xml->photo->remote_photo_name . '[/img]' . "\n\n" . $body;
-		$body = scale_external_images($body);
-	}
-
-	$maxlen = get_max_import_size();
-
-	if($maxlen && mb_strlen($body) > $maxlen) {
-		$body = mb_substr($body,0,$maxlen,'UTF-8');
-		logger('message length exceeds max_import_size: truncated');
-	}
-
-//WTF? FIXME
-	// Add OEmbed and other information to the body
-//	$body = add_page_info_to_body($body, false, true);
-
-	$datarray = array();
-
-	
-	// Look for tags and linkify them
-	$results = linkify_tags(get_app(), $body, $importer['channel_id'], true);
-
-	$datarray['term'] = array();
-
-	if($results) {
-		foreach($results as $result) {
-			$success = $result['success'];
-			if($success['replaced']) {
-				$datarray['term'][] = array(
-					'uid'   => $importer['channel_id'],
-					'type'  => $success['termtype'],
-					'otype' => TERM_OBJ_POST,
-					'term'  => $success['term'],
-					'url'   => $success['url']
-				);
-			}
-		}
-	}
-
-	$cnt = preg_match_all('/@\[url=(.*?)\](.*?)\[\/url\]/ism',$body,$matches,PREG_SET_ORDER);
-	if($cnt) {
-		foreach($matches as $mtch) {
-			$datarray['term'][] = array(
-				'uid'   => $importer['channel_id'],
-				'type'  => TERM_MENTION,
-				'otype' => TERM_OBJ_POST,
-				'term'  => $mtch[2],
-				'url'   => $mtch[1]
-			);
-		}
-	}
-
-	$cnt = preg_match_all('/@\[zrl=(.*?)\](.*?)\[\/zrl\]/ism',$body,$matches,PREG_SET_ORDER);
-	if($cnt) {
-		foreach($matches as $mtch) {
-			// don't include plustags in the term
-			$term = ((substr($mtch[2],-1,1) === '+') ? substr($mtch[2],0,-1) : $mtch[2]);
-			$datarray['term'][] = array(
-				'uid'   => $importer['channel_id'],
-				'type'  => TERM_MENTION,
-				'otype' => TERM_OBJ_POST,
-				'term'  => $term,
-				'url'   => $mtch[1]
-			);
-		}
-	}
-
-
-
-
-	$plink = service_plink($contact,$guid);
-
-
-	$datarray['uid'] = $importer['channel_id'];
-
-	$datarray['verb'] = ACTIVITY_POST;
-	$datarray['mid'] = $datarray['parent_mid'] = $guid;
-
-	$datarray['changed'] = $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
-	$datarray['item_private'] = $private;
-
-	$datarray['plink'] = $plink;
-
-	$datarray['author_xchan'] = $contact['xchan_hash'];
-	$datarray['owner_xchan']  = $contact['xchan_hash'];
-
-	$datarray['body'] = $body;
-
-	$datarray['app']  = $app;
-
-	$datarray['item_unseen'] = 1;
-	$datarray['item_thread_top'] = 1;
-
-	$tgroup = tgroup_check($importer['channel_id'],$datarray);
-
-	if((! $importer['system']) && (! perm_is_allowed($importer['channel_id'],$contact['xchan_hash'],'send_stream')) && (! $tgroup)) {
-		logger('diaspora_post: Ignoring this author.');
-		return 202;
-	}
-
-	if(! post_is_importable($datarray,$contact)) {
-		logger('diaspora_post: filtering this author.');
-		return 202;
-	}
-
-	$result = item_store($datarray);
-	return;
-
-}
-
-
-function get_diaspora_reshare_xml($url,$recurse = 0) {
-
-	$x = z_fetch_url($url);
-	if(! $x['success'])
-		$x = z_fetch_url(str_replace('https://','http://',$url));
-	if(! $x['success']) {
-		logger('get_diaspora_reshare_xml: unable to fetch source url ' . $url);
-		return;
-	}
-	logger('get_diaspora_reshare_xml: source: ' . $x['body'], LOGGER_DEBUG);
-
-	$source_xml = parse_xml_string($x['body'],false);
-
-	if(! $source_xml) {
-		logger('get_diaspora_reshare_xml: unparseable result from ' . $url);
-		return '';
-	}
-
-	if($source_xml->post->status_message) {
-		return $source_xml;
-	}
-
-	// see if it's a reshare of a reshare
-
-	if($source_xml->post->reshare)
-		$xml = $source_xml->post->reshare;
-	else 
-		return false;
-
-	if($xml->root_diaspora_id && $xml->root_guid && $recurse < 15) {
-		$orig_author = notags(unxmlify($xml->root_diaspora_id));
-		$orig_guid = notags(unxmlify($xml->root_guid));
-		$source_url = 'https://' . substr($orig_author,strpos($orig_author,'@')+1) . '/p/' . $orig_guid . '.xml';
-		$y = get_diaspora_reshare_xml($source_url,$recurse+1);
-		if($y)
-			return $y;
-	}
-	return false;
-}
-
-
-
-function diaspora_reshare($importer,$xml,$msg) {
-
-	logger('diaspora_reshare: init: ' . print_r($xml,true), LOGGER_DATA);
-
-	$a = get_app();
-	$guid = notags(unxmlify($xml->guid));
-	$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
-
-
-	if($diaspora_handle != $msg['author']) {
-		logger('diaspora_post: Potential forgery. Message handle is not the same as envelope sender.');
-		return 202;
-	}
-
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$diaspora_handle);
-	if(! $contact)
-		return;
-
-	$search_guid = ((strlen($guid) == 64) ? $guid . '%' : $guid);
-	$r = q("SELECT id FROM item WHERE uid = %d AND mid like '%s' LIMIT 1",
-		intval($importer['channel_id']),
-		dbesc($search_guid)
-	);
-	if($r) {
-		logger('diaspora_reshare: message exists: ' . $guid);
-		return;
-	}
-
-	$orig_author = notags(unxmlify($xml->root_diaspora_id));
-	$orig_guid = notags(unxmlify($xml->root_guid));
-
-	$source_url = 'https://' . substr($orig_author,strpos($orig_author,'@')+1) . '/p/' . $orig_guid . '.xml';
-	$orig_url = 'https://'.substr($orig_author,strpos($orig_author,'@')+1).'/posts/'.$orig_guid;
-
-	$source_xml = get_diaspora_reshare_xml($source_url);
-
-	if($source_xml->post->status_message) {
-		$body = diaspora2bb($source_xml->post->status_message->raw_message);
-
-		$orig_author = notags(unxmlify($source_xml->post->status_message->diaspora_handle));
-		$orig_guid = notags(unxmlify($source_xml->post->status_message->guid));
-
-
-		// Checking for embedded pictures
-		if($source_xml->post->status_message->photo->remote_photo_path &&
-			$source_xml->post->status_message->photo->remote_photo_name) {
-
-			$remote_photo_path = notags(unxmlify($source_xml->post->status_message->photo->remote_photo_path));
-			$remote_photo_name = notags(unxmlify($source_xml->post->status_message->photo->remote_photo_name));
-
-			$body = '[img]'.$remote_photo_path.$remote_photo_name.'[/img]'."\n".$body;
-
-			logger('diaspora_reshare: embedded picture link found: '.$body, LOGGER_DEBUG);
-		}
-
-		$body = scale_external_images($body);
-
-		// Add OEmbed and other information to the body
-//		$body = add_page_info_to_body($body, false, true);
-	}
-	else {
-		// Maybe it is a reshare of a photo that will be delivered at a later time (testing)
-		logger('diaspora_reshare: no reshare content found: ' . print_r($source_xml,true));
-		$body = "";
-		//return;
-	}
-
-	$maxlen = get_max_import_size();
-
-	if($maxlen && mb_strlen($body) > $maxlen) {
-		$body = mb_substr($body,0,$maxlen,'UTF-8');
-		logger('message length exceeds max_import_size: truncated');
-	}
-
-	$person = find_diaspora_person_by_handle($orig_author);
-
-	if($person) {
-		$orig_author_name = $person['xchan_name'];
-		$orig_author_link = $person['xchan_url'];
-		$orig_author_photo = $person['xchan_photo_m'];
-	}
-
-
-	$created = unxmlify($xml->created_at);
-	$private = ((unxmlify($xml->public) == 'false') ? 1 : 0);
-
-	$datarray = array();
-
-	// Look for tags and linkify them
-	$results = linkify_tags(get_app(), $body, $importer['channel_id'], true);
-
-	$datarray['term'] = array();
-
-	if($results) {
-		foreach($results as $result) {
-			$success = $result['success'];
-			if($success['replaced']) {
-				$datarray['term'][] = array(
-					'uid'   => $importer['channel_id'],
-					'type'  => $success['termtype'],
-					'otype' => TERM_OBJ_POST,
-					'term'  => $success['term'],
-					'url'   => $success['url']
-				);
-			}
-		}
-	}
-
-	$cnt = preg_match_all('/@\[url=(.*?)\](.*?)\[\/url\]/ism',$body,$matches,PREG_SET_ORDER);
-	if($cnt) {
-		foreach($matches as $mtch) {
-			$datarray['term'][] = array(
-				'uid'   => $importer['channel_id'],
-				'type'  => TERM_MENTION,
-				'otype' => TERM_OBJ_POST,
-				'term'  => $mtch[2],
-				'url'   => $mtch[1]
-			);
-		}
-	}
-
-	$cnt = preg_match_all('/@\[zrl=(.*?)\](.*?)\[\/zrl\]/ism',$body,$matches,PREG_SET_ORDER);
-	if($cnt) {
-		foreach($matches as $mtch) {
-			// don't include plustags in the term
-			$term = ((substr($mtch[2],-1,1) === '+') ? substr($mtch[2],0,-1) : $mtch[2]);
-			$datarray['term'][] = array(
-				'uid'   => $importer['channel_id'],
-				'type'  => TERM_MENTION,
-				'otype' => TERM_OBJ_POST,
-				'term'  => $term,
-				'url'   => $mtch[1]
-			);
-		}
-	}
-
-
-
-
-
-	$newbody = "[share author='" . urlencode($orig_author_name) 
-		. "' profile='" . $orig_author_link 
-		. "' avatar='" . $orig_author_photo 
-		. "' link='" . $orig_url
-		. "' posted='" . datetime_convert('UTC','UTC',unxmlify($source_xml->post->status_message->created_at))
-		. "' message_id='" . unxmlify($source_xml->post->status_message->guid)
- 		. "']" . $body . "[/share]";
-
-
-	$plink = service_plink($contact,$guid);
-
-	$datarray['uid'] = $importer['channel_id'];
-	$datarray['mid'] = $datarray['parent_mid'] = $guid;
-	$datarray['changed'] = $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
-	$datarray['item_private'] = $private;
-	$datarray['plink'] = $plink;
-	$datarray['owner_xchan'] = $contact['xchan_hash'];
-	$datarray['author_xchan'] = $contact['xchan_hash'];
-
-	$datarray['body'] = $newbody;
-	$datarray['app']  = 'Diaspora';
-
-
-
-	$tgroup = tgroup_check($importer['channel_id'],$datarray);
-
-	if((! $importer['system']) && (! perm_is_allowed($importer['channel_id'],$contact['xchan_hash'],'send_stream')) && (! $tgroup)) {
-		logger('diaspora_post: Ignoring this author.');
-		return 202;
-	}
-
-
-	$result = item_store($datarray);
-
-	return;
-
-}
-
-
-function diaspora_asphoto($importer,$xml,$msg) {
-	logger('diaspora_asphoto called');
-
-	$a = get_app();
-	$guid = notags(unxmlify($xml->guid));
-	$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
-
-	if($diaspora_handle != $msg['author']) {
-		logger('diaspora_post: Potential forgery. Message handle is not the same as envelope sender.');
-		return 202;
-	}
-
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$diaspora_handle);
-	if(! $contact)
-		return;
-
-	if((! $importer['system']) && (! perm_is_allowed($importer['channel_id'],$contact['xchan_hash'],'send_stream'))) {
-		logger('diaspora_asphoto: Ignoring this author.');
-		return 202;
-	}
-
-	$message_id = $diaspora_handle . ':' . $guid;
-	$r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `guid` = '%s' LIMIT 1",
-		intval($importer['channel_id']),
-		dbesc($message_id),
-		dbesc($guid)
-	);
-	if(count($r)) {
-		logger('diaspora_asphoto: message exists: ' . $guid);
-		return;
-	}
-
-	// allocate a guid on our system - we aren't fixing any collisions.
-	// we're ignoring them
-
-	$g = q("select * from guid where guid = '%s' limit 1",
-		dbesc($guid)
-	);
-	if(! count($g)) {
-		q("insert into guid ( guid ) values ( '%s' )",
-			dbesc($guid)
-		);
-	}
-
-	$created = unxmlify($xml->created_at);
-	$private = ((unxmlify($xml->public) == 'false') ? 1 : 0);
-
-	if(strlen($xml->objectId) && ($xml->objectId != 0) && ($xml->image_url)) {
-		$body = '[url=' . notags(unxmlify($xml->image_url)) . '][img]' . notags(unxmlify($xml->objectId)) . '[/img][/url]' . "\n";
-		$body = scale_external_images($body,false);
-	}
-	elseif($xml->image_url) {
-		$body = '[img]' . notags(unxmlify($xml->image_url)) . '[/img]' . "\n";
-		$body = scale_external_images($body);
-	}
-	else {
-		logger('diaspora_asphoto: no photo url found.');
-		return;
-	}
-
-	$plink = service_plink($contact,$guid);
-
-	$datarray = array();
-
-	$datarray['uid'] = $importer['channel_id'];
-	$datarray['contact-id'] = $contact['id'];
-	$datarray['wall'] = 0;
-	$datarray['network']  = NETWORK_DIASPORA;
-	$datarray['guid'] = $guid;
-	$datarray['uri'] = $datarray['parent-uri'] = $message_id;
-	$datarray['changed'] = $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
-	$datarray['private'] = $private;
-	$datarray['parent'] = 0;
-	$datarray['plink'] = $plink;
-	$datarray['owner-name'] = $contact['name'];
-	$datarray['owner-link'] = $contact['url'];
-	//$datarray['owner-avatar'] = $contact['thumb'];
-	$datarray['owner-avatar'] = ((x($contact,'thumb')) ? $contact['thumb'] : $contact['photo']);
-	$datarray['author-name'] = $contact['name'];
-	$datarray['author-link'] = $contact['url'];
-	$datarray['author-avatar'] = $contact['thumb'];
-	$datarray['body'] = $body;
-
-	$datarray['app']  = 'Diaspora/Cubbi.es';
-
-	$message_id = item_store($datarray);
-
-	//if($message_id) {
-	//	q("update item set plink = '%s' where id = %d",
-	//		dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
-	//		intval($message_id)
-	//	);
-	//}
-
-	return;
-
-}
-
-
-
-
-
-
-function diaspora_comment($importer,$xml,$msg) {
-
-	$a = get_app();
-	$guid = notags(unxmlify($xml->guid));
-	$parent_guid = notags(unxmlify($xml->parent_guid));
-	$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
-	$target_type = notags(unxmlify($xml->target_type));
-	$text = unxmlify($xml->text);
-	$author_signature = notags(unxmlify($xml->author_signature));
-
-	$parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
-
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$msg['author']);
-	if(! $contact) {
-		logger('diaspora_comment: cannot find contact: ' . $msg['author']);
-		return;
-	}
-
-
-	
-	$pubcomment = get_pconfig($importer['channel_id'],'system','diaspora_public_comments');
-
-	// by default comments on public posts are allowed from anybody on Diaspora. That is their policy.
-	// Once this setting is set to something we'll track your preference and it will over-ride the default. 
-
-	if($pubcomment === false)
-		$pubcomment = 1;
-
-	// Friendica is currently truncating guids at 64 chars
-	$search_guid = $parent_guid;
-	if(strlen($parent_guid) == 64)
-		$search_guid = $parent_guid . '%';
-
-	$r = q("SELECT * FROM item WHERE uid = %d AND mid LIKE '%s' LIMIT 1",
-		intval($importer['channel_id']),
-		dbesc($search_guid)
-	);
-	if(! $r) {
-		logger('diaspora_comment: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid);
-		return;
-	}
-
-	$parent_item = $r[0];
-
-	if(intval($parent_item['item_private']))
-		$pubcomment = 0;	
-
-	$search_guid = $guid;
-	if(strlen($guid) == 64)
-		$search_guid = $guid . '%';
-
-
-	$r = q("SELECT * FROM item WHERE uid = %d AND mid like '%s' LIMIT 1",
-		intval($importer['channel_id']),
-		dbesc($search_guid)
-	);
-	if($r) {
-		logger('diaspora_comment: our comment just got relayed back to us (or there was a guid collision) : ' . $guid);
-		return;
-	}
-
-
-
-	/* How Diaspora performs comment signature checking:
-
-	   - If an item has been sent by the comment author to the top-level post owner to relay on
-	     to the rest of the contacts on the top-level post, the top-level post owner should check
-	     the author_signature, then create a parent_author_signature before relaying the comment on
-	   - If an item has been relayed on by the top-level post owner, the contacts who receive it
-	     check only the parent_author_signature. Basically, they trust that the top-level post
-	     owner has already verified the authenticity of anything he/she sends out
-	   - In either case, the signature that get checked is the signature created by the person
-	     who sent the psuedo-salmon
-	*/
-
-	$signed_data = $guid . ';' . $parent_guid . ';' . $text . ';' . $diaspora_handle;
-	$key = $msg['key'];
-
-	if($parent_author_signature) {
-		// If a parent_author_signature exists, then we've received the comment
-		// relayed from the top-level post owner. There's no need to check the
-		// author_signature if the parent_author_signature is valid
-
-		$parent_author_signature = base64_decode($parent_author_signature);
-
-		if(! rsa_verify($signed_data,$parent_author_signature,$key,'sha256')) {
-			logger('diaspora_comment: top-level owner verification failed.');
-			return;
-		}
-	}
-	else {
-		// If there's no parent_author_signature, then we've received the comment
-		// from the comment creator. In that case, the person is commenting on
-		// our post, so he/she must be a contact of ours and his/her public key
-		// should be in $msg['key']
-
-		if($importer['system']) {
-			// don't relay to the sys channel
-			logger('diaspora_comment: relay to sys channel blocked.');
-			return;
-		}
-
-		$author_signature = base64_decode($author_signature);
-
-		if(! rsa_verify($signed_data,$author_signature,$key,'sha256')) {
-			logger('diaspora_comment: comment author verification failed.');
-			return;
-		}
-	}
-
-	// Phew! Everything checks out. Now create an item.
-
-	// Find the original comment author information.
-	// We need this to make sure we display the comment author
-	// information (name and avatar) correctly.
-
-	if(strcasecmp($diaspora_handle,$msg['author']) == 0)
-		$person = $contact;
-	else {
-		$person = find_diaspora_person_by_handle($diaspora_handle);
-
-		if(! is_array($person)) {
-			logger('diaspora_comment: unable to find author details');
-			return;
-		}
-	}
-
-
-	$body = diaspora2bb($text);
-
-
-	$maxlen = get_max_import_size();
-
-	if($maxlen && mb_strlen($body) > $maxlen) {
-		$body = mb_substr($body,0,$maxlen,'UTF-8');
-		logger('message length exceeds max_import_size: truncated');
-	}
-
-
-	$datarray = array();
-
-	// Look for tags and linkify them
-	$results = linkify_tags(get_app(), $body, $importer['channel_id'], true);
-
-	$datarray['term'] = array();
-
-	if($results) {
-		foreach($results as $result) {
-			$success = $result['success'];
-			if($success['replaced']) {
-				$datarray['term'][] = array(
-					'uid'   => $importer['channel_id'],
-					'type'  => $success['termtype'],
-					'otype' => TERM_OBJ_POST,
-					'term'  => $success['term'],
-					'url'   => $success['url']
-				);
-			}
-		}
-	}
-
-	$cnt = preg_match_all('/@\[url=(.*?)\](.*?)\[\/url\]/ism',$body,$matches,PREG_SET_ORDER);
-	if($cnt) {
-		foreach($matches as $mtch) {
-			$datarray['term'][] = array(
-				'uid'   => $importer['channel_id'],
-				'type'  => TERM_MENTION,
-				'otype' => TERM_OBJ_POST,
-				'term'  => $mtch[2],
-				'url'   => $mtch[1]
-			);
-		}
-	}
-
-	$cnt = preg_match_all('/@\[zrl=(.*?)\](.*?)\[\/zrl\]/ism',$body,$matches,PREG_SET_ORDER);
-	if($cnt) {
-		foreach($matches as $mtch) {
-			// don't include plustags in the term
-			$term = ((substr($mtch[2],-1,1) === '+') ? substr($mtch[2],0,-1) : $mtch[2]);
-			$datarray['term'][] = array(
-				'uid'   => $importer['channel_id'],
-				'type'  => TERM_MENTION,
-				'otype' => TERM_OBJ_POST,
-				'term'  => $term,
-				'url'   => $mtch[1]
-			);
-		}
-	}
-
-	$datarray['uid'] = $importer['channel_id'];
-	$datarray['verb'] = ACTIVITY_POST;
-	$datarray['mid'] = $guid;
-	$datarray['parent_mid'] = $parent_item['mid'];
-
-	// set the route to that of the parent so downstream hubs won't reject it.
-	$datarray['route'] = $parent_item['route'];
-
-	// No timestamps for comments? OK, we'll the use current time.
-	$datarray['changed'] = $datarray['created'] = $datarray['edited'] = datetime_convert();
-	$datarray['item_private'] = $parent_item['item_private'];
-
-	$datarray['owner_xchan'] = $parent_item['owner_xchan'];
-	$datarray['author_xchan'] = $person['xchan_hash'];
-
-	$datarray['body'] = $body;
-
-	if(strstr($person['xchan_network'],'friendica'))
-		$app = 'Friendica';
-	else
-		$app = 'Diaspora';
-
-	$datarray['app']  = $app;
-	
-	if(! $parent_author_signature) {
-		$key = get_config('system','pubkey');
-		$x = array('signer' => $diaspora_handle, 'body' => $text, 
-			'signed_text' => $signed_data, 'signature' => base64_encode($author_signature));
-		$datarray['diaspora_meta'] = json_encode($x);
-	}
-
-
-
-	// So basically if something arrives at the sys channel it's by definition public and we allow it.
-	// If $pubcomment and the parent was public, we allow it.
-	// In all other cases, honour the permissions for this Diaspora connection
-
-	$tgroup = tgroup_check($importer['channel_id'],$datarray);
-
-	if((! $importer['system']) && (! $pubcomment) && (! perm_is_allowed($importer['channel_id'],$contact['xchan_hash'],'post_comments')) && (! $tgroup)) {
-		logger('diaspora_comment: Ignoring this author.');
-		return 202;
-	}
-
-
-
-
-	$result = item_store($datarray);
-
-	if($result && $result['success'])
-		$message_id = $result['item_id'];
-
-	if(intval($parent_item['item_origin']) && (! $parent_author_signature)) {
-		// if the message isn't already being relayed, notify others
-		// the existence of parent_author_signature means the parent_author or owner
-		// is already relaying.
-
-		proc_run('php','include/notifier.php','comment-import',$message_id);
-	}
-
-	if($result['item_id']) {
-		$r = q("select * from item where id = %d limit 1",
-			intval($result['item_id'])
-		);
-		if($r)
-			send_status_notifications($result['item_id'],$r[0]);
-	}
-
-	return;
-}
-
-
-
-
-function diaspora_conversation($importer,$xml,$msg) {
-
-	$a = get_app();
-
-	$guid = notags(unxmlify($xml->guid));
-	$subject = notags(unxmlify($xml->subject));
-	$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
-	$participant_handles = notags(unxmlify($xml->participant_handles));
-	$created_at = datetime_convert('UTC','UTC',notags(unxmlify($xml->created_at)));
-
-	$parent_uri = $diaspora_handle . ':' . $guid;
- 
-	$messages = $xml->message;
-
-	if(! count($messages)) {
-		logger('diaspora_conversation: empty conversation');
-		return;
-	}
-
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$msg['author']);
-	if(! $contact) {
-		logger('diaspora_conversation: cannot find contact: ' . $msg['author']);
-		return;
-	}
-
-
-	if(! perm_is_allowed($importer['channel_id'],$contact['xchan_hash'],'post_mail')) {
-		logger('diaspora_conversation: Ignoring this author.');
-		return 202;
-	}
-
-	$conversation = null;
-
-	$c = q("select * from conv where uid = %d and guid = '%s' limit 1",
-		intval($importer['channel_id']),
-		dbesc($guid)
-	);
-	if(count($c))
-		$conversation = $c[0];
-	else {
-		$r = q("insert into conv (uid,guid,creator,created,updated,subject,recips) values(%d, '%s', '%s', '%s', '%s', '%s', '%s') ",
-			intval($importer['channel_id']),
-			dbesc($guid),
-			dbesc($diaspora_handle),
-			dbesc(datetime_convert('UTC','UTC',$created_at)),
-			dbesc(datetime_convert()),
-			dbesc($subject),
-			dbesc($participant_handles)
-		);
-		if($r)
-			$c = q("select * from conv where uid = %d and guid = '%s' limit 1",
-			intval($importer['channel_id']),
-			dbesc($guid)
-		);
-		if(count($c))
-			$conversation = $c[0];
-	}
-	if(! $conversation) {
-		logger('diaspora_conversation: unable to create conversation.');
-		return;
-	}
-
-	foreach($messages as $mesg) {
-
-		$reply = 0;
-
-		$msg_guid = notags(unxmlify($mesg->guid));
-		$msg_parent_guid = notags(unxmlify($mesg->parent_guid));
-		$msg_parent_author_signature = notags(unxmlify($mesg->parent_author_signature));
-		$msg_author_signature = notags(unxmlify($mesg->author_signature));
-		$msg_text = unxmlify($mesg->text);
-		$msg_created_at = datetime_convert('UTC','UTC',notags(unxmlify($mesg->created_at)));
-		$msg_diaspora_handle = notags(unxmlify($mesg->diaspora_handle));
-		$msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
-		if($msg_conversation_guid != $guid) {
-			logger('diaspora_conversation: message conversation guid does not belong to the current conversation. ' . $xml);
-			continue;
-		}
-
-		$body = diaspora2bb($msg_text);
-
-
-		$maxlen = get_max_import_size();
-
-		if($maxlen && mb_strlen($body) > $maxlen) {
-			$body = mb_substr($body,0,$maxlen,'UTF-8');
-			logger('message length exceeds max_import_size: truncated');
-		}
-
-
-		$author_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($mesg->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
-
-		$author_signature = base64_decode($msg_author_signature);
-
-		if(strcasecmp($msg_diaspora_handle,$msg['author']) == 0) {
-			$person = $contact;
-			$key = $msg['key'];
-		}
-		else {
-			$person = find_diaspora_person_by_handle($msg_diaspora_handle);	
-
-			if(is_array($person) && x($person,'xchan_pubkey'))
-				$key = $person['xchan_pubkey'];
-			else {
-				logger('diaspora_conversation: unable to find author details');
-				continue;
-			}
-		}
-
-		if(! rsa_verify($author_signed_data,$author_signature,$key,'sha256')) {
-			logger('diaspora_conversation: verification failed.');
-			continue;
-		}
-
-		if($msg_parent_author_signature) {
-			$owner_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($mesg->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
-
-			$parent_author_signature = base64_decode($msg_parent_author_signature);
-
-			$key = $msg['key'];
-
-			if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha256')) {
-				logger('diaspora_conversation: owner verification failed.');
-				continue;
-			}
-		}
-
-		$r = q("select id from mail where mid = '%s' limit 1",
-			dbesc($message_id)
-		);
-		if(count($r)) {
-			logger('diaspora_conversation: duplicate message already delivered.', LOGGER_DEBUG);
-			continue;
-		}
-
-		if($subject)
-			$subject = str_rot47(base64url_encode($subject));
-		if($body)
-			$body  = str_rot47(base64url_encode($body));
-
-		q("insert into mail ( `channel_id`, `convid`, `from_xchan`,`to_xchan`,`title`,`body`,`mail_obscured`,`mid`,`parent_mid`,`created`) values ( %d, %d, '%s', '%s', '%s', '%s', %d, '%s', '%s', '%s')",
-			intval($importer['channel_id']),
-			intval($conversation['id']),
-			dbesc($person['xchan_hash']),
-			dbesc($importer['channel_hash']),
-			dbesc($subject),
-			dbesc($body),
-			intval(1),
-			dbesc($msg_guid),
-			dbesc($parent_uri),
-			dbesc($msg_created_at)
-		);
-
-		q("update conv set updated = '%s' where id = %d",
-			dbesc(datetime_convert()),
-			intval($conversation['id'])
-		);
-
-		require_once('include/enotify.php');
-/******
-//FIXME
-
-		notification(array(
-			'type' => NOTIFY_MAIL,
-			'notify_flags' => $importer['notify-flags'],
-			'language' => $importer['language'],
-			'to_name' => $importer['username'],
-			'to_email' => $importer['email'],
-			'uid' =>$importer['importer_uid'],
-			'item' => array('subject' => $subject, 'body' => $body),
-			'source_name' => $person['name'],
-			'source_link' => $person['url'],
-			'source_photo' => $person['thumb'],
-			'verb' => ACTIVITY_POST,
-			'otype' => 'mail'
-		));
-*******/
-
-	}
-
-	return;
-}
-
-function diaspora_message($importer,$xml,$msg) {
-
-	$a = get_app();
-
-	$msg_guid = notags(unxmlify($xml->guid));
-	$msg_parent_guid = notags(unxmlify($xml->parent_guid));
-	$msg_parent_author_signature = notags(unxmlify($xml->parent_author_signature));
-	$msg_author_signature = notags(unxmlify($xml->author_signature));
-	$msg_text = unxmlify($xml->text);
-	$msg_created_at = datetime_convert('UTC','UTC',notags(unxmlify($xml->created_at)));
-	$msg_diaspora_handle = notags(unxmlify($xml->diaspora_handle));
-	$msg_conversation_guid = notags(unxmlify($xml->conversation_guid));
-
-	$parent_uri = $msg_parent_guid;
- 
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$msg_diaspora_handle);
-	if(! $contact) {
-		logger('diaspora_message: cannot find contact: ' . $msg_diaspora_handle);
-		return;
-	}
-
-	if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { 
-		logger('diaspora_message: Ignoring this author.');
-		return 202;
-	}
-
-	$conversation = null;
-
-	$c = q("select * from conv where uid = %d and guid = '%s' limit 1",
-		intval($importer['channel_id']),
-		dbesc($msg_conversation_guid)
-	);
-	if($c)
-		$conversation = $c[0];
-	else {
-		logger('diaspora_message: conversation not available.');
-		return;
-	}
-
-	$reply = 0;
-
-	$subject = $conversation['subject']; 
-	$body = diaspora2bb($msg_text);
-
-
-	$maxlen = get_max_import_size();
-
-	if($maxlen && mb_strlen($body) > $maxlen) {
-		$body = mb_substr($body,0,$maxlen,'UTF-8');
-		logger('message length exceeds max_import_size: truncated');
-	}
-
-
-
-	$message_id = $msg_diaspora_handle . ':' . $msg_guid;
-
-	$author_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($xml->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
-
-
-	$author_signature = base64_decode($msg_author_signature);
-
-	$person = find_diaspora_person_by_handle($msg_diaspora_handle);	
-	if(is_array($person) && x($person,'xchan_pubkey'))
-		$key = $person['xchan_pubkey'];
-	else {
-		logger('diaspora_message: unable to find author details');
-		return;
-	}
-
-	if(! rsa_verify($author_signed_data,$author_signature,$key,'sha256')) {
-		logger('diaspora_message: verification failed.');
-		return;
-	}
-
-	$r = q("select id from mail where mid = '%s' and channel_id = %d limit 1",
-		dbesc($message_id),
-		intval($importer['channel_id'])
-	);
-	if($r) {
-		logger('diaspora_message: duplicate message already delivered.', LOGGER_DEBUG);
-		return;
-	}
-
-	$key = get_config('system','pubkey');
-	if($subject)
-		$subject = str_rot47(base64url_encode($subject));
-	if($body)
-		$body  = str_rot47(base64url_encode($body));
-
-	q("insert into mail ( `channel_id`, `convid`, `from_xchan`,`to_xchan`,`title`,`body`,`mail_obscured`,`mid`,`parent_mid`,`created`) values ( %d, %d, '%s', '%s', '%s', '%s', '%d','%s','%s','%s')",
-		intval($importer['channel_id']),
-		intval($conversation['id']),
-		dbesc($person['xchan_hash']),
-		dbesc($importer['xchan_hash']),
-		dbesc($subject),
-		dbesc($body),
-		intval(1),
-		dbesc($msg_guid),
-		dbesc($parent_uri),
-		dbesc($msg_created_at)
-	);
-
-	q("update conv set updated = '%s' where id = %d",
-		dbesc(datetime_convert()),
-		intval($conversation['id'])
-	);
-
-	return;
-}
-
-
-function diaspora_photo($importer,$xml,$msg) {
-
-	$a = get_app();
-
-	logger('diaspora_photo: init',LOGGER_DEBUG);
-
-	$remote_photo_path = notags(unxmlify($xml->remote_photo_path));
-
-	$remote_photo_name = notags(unxmlify($xml->remote_photo_name));
-
-	$status_message_guid = notags(unxmlify($xml->status_message_guid));
-
-	$guid = notags(unxmlify($xml->guid));
-
-	$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
-
-	$public = notags(unxmlify($xml->public));
-
-	$created_at = notags(unxmlify($xml_created_at));
-
-	logger('diaspora_photo: status_message_guid: ' . $status_message_guid, LOGGER_DEBUG);
-
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$msg['author']);
-	if(! $contact) {
-		logger('diaspora_photo: contact record not found: ' . $msg['author'] . ' handle: ' . $diaspora_handle);
-		return;
-	}
-
-	if((! $importer['system']) && (! perm_is_allowed($importer['channel_id'],$contact['xchan_hash'],'send_stream'))) {
-		logger('diaspora_photo: Ignoring this author.');
-		return 202;
-	}
-
-	$r = q("SELECT * FROM `item` WHERE `uid` = %d AND `mid` = '%s' LIMIT 1",
-		intval($importer['channel_id']),
-		dbesc($status_message_guid)
-	);
-	if(! $r) {
-		logger('diaspora_photo: attempt = ' . $attempt . '; status message not found: ' . $status_message_guid . ' for photo: ' . $guid);
-		return;
-	}
-
-//	$parent_item = $r[0];
-
-//	$link_text = '[img]' . $remote_photo_path . $remote_photo_name . '[/img]' . "\n";
-
-//	$link_text = scale_external_images($link_text, true,
-//									   array($remote_photo_name, 'scaled_full_' . $remote_photo_name));
-
-//	if(strpos($parent_item['body'],$link_text) === false) {
-//		$r = q("update item set `body` = '%s', `visible` = 1 where `id` = %d and `uid` = %d",
-//			dbesc($link_text . $parent_item['body']),
-//			intval($parent_item['id']),
-//			intval($parent_item['uid'])
-//		);
-//	}
-
-	return;
-}
-
-
-
-
-function diaspora_like($importer,$xml,$msg) {
-
-	$a = get_app();
-	$guid = notags(unxmlify($xml->guid));
-	$parent_guid = notags(unxmlify($xml->parent_guid));
-	$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
-	$target_type = notags(unxmlify($xml->target_type));
-	$positive = notags(unxmlify($xml->positive));
-	$author_signature = notags(unxmlify($xml->author_signature));
-
-	$parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
-
-	// likes on comments not supported here and likes on photos not supported by Diaspora
-
-//	if($target_type !== 'Post')
-//		return;
-
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$msg['author']);
-	if(! $contact) {
-		logger('diaspora_like: cannot find contact: ' . $msg['author'] . ' for channel ' . $importer['channel_name']);
-		return;
-	}
-
-
-	if((! $importer['system']) && (! perm_is_allowed($importer['channel_id'],$contact['xchan_hash'],'post_comments'))) {
-		logger('diaspora_like: Ignoring this author.');
-		return 202;
-	}
-
-	$r = q("SELECT * FROM `item` WHERE `uid` = %d AND `mid` = '%s' LIMIT 1",
-		intval($importer['channel_id']),
-		dbesc($parent_guid)
-	);
-	if(! count($r)) {
-		logger('diaspora_like: parent item not found: ' . $guid);
-		return;
-	}
-
-	$parent_item = $r[0];
-
-	$r = q("SELECT * FROM `item` WHERE `uid` = %d AND `mid` = '%s' LIMIT 1",
-		intval($importer['channel_id']),
-		dbesc($guid)
-	);
-	if(count($r)) {
-		if($positive === 'true') {
-			logger('diaspora_like: duplicate like: ' . $guid);
-			return;
-		}
-		// Note: I don't think "Like" objects with positive = "false" are ever actually used
-		// It looks like "RelayableRetractions" are used for "unlike" instead
-		if($positive === 'false') {
-			logger('diaspora_like: received a like with positive set to "false"...ignoring');
-			// perhaps call drop_item()
-			// FIXME--actually don't unless it turns out that Diaspora does indeed send out "false" likes
-			//  send notification via proc_run()
-			return;
-		}
-	}
-
-	$i = q("select * from xchan where xchan_hash = '%s' limit 1",
-		dbesc($parent_item['author_xchan'])
-	);
-	if($i)
-		$item_author = $i[0];
-
-	// Note: I don't think "Like" objects with positive = "false" are ever actually used
-	// It looks like "RelayableRetractions" are used for "unlike" instead
-	if($positive === 'false') {
-		logger('diaspora_like: received a like with positive set to "false"');
-		logger('diaspora_like: unlike received with no corresponding like...ignoring');
-		return;	
-	}
-
-
-	/* How Diaspora performs "like" signature checking:
-
-	   - If an item has been sent by the like author to the top-level post owner to relay on
-	     to the rest of the contacts on the top-level post, the top-level post owner should check
-	     the author_signature, then create a parent_author_signature before relaying the like on
-	   - If an item has been relayed on by the top-level post owner, the contacts who receive it
-	     check only the parent_author_signature. Basically, they trust that the top-level post
-	     owner has already verified the authenticity of anything he/she sends out
-	   - In either case, the signature that get checked is the signature created by the person
-	     who sent the salmon
-	*/
-
-	// 2014-09-10 let's try this: signatures are failing. I'll try and make a signable string from
-	// the parameters in the order they were presented in the post. This is how D* creates the signable string.
-
-
-	$signed_data = $positive . ';' . $guid . ';' . $target_type . ';' . $parent_guid . ';' . $diaspora_handle;
-
-	$key = $msg['key'];
-
-	if($parent_author_signature) {
-		// If a parent_author_signature exists, then we've received the like
-		// relayed from the top-level post owner. There's no need to check the
-		// author_signature if the parent_author_signature is valid
-
-		$parent_author_signature = base64_decode($parent_author_signature);
-
-		if(! rsa_verify($signed_data,$parent_author_signature,$key,'sha256')) {
-			if (intval(get_config('system','ignore_diaspora_like_signature')))
-				logger('diaspora_like: top-level owner verification failed. Proceeding anyway.');
-			else {
-				logger('diaspora_like: top-level owner verification failed.');
-				return;
-			}
-		}
-	}
-	else {
-		// If there's no parent_author_signature, then we've received the like
-		// from the like creator. In that case, the person is "like"ing
-		// our post, so he/she must be a contact of ours and his/her public key
-		// should be in $msg['key']
-
-		$author_signature = base64_decode($author_signature);
-
-		if(! rsa_verify($signed_data,$author_signature,$key,'sha256')) {
-			if (intval(get_config('system','ignore_diaspora_like_signature')))
-				logger('diaspora_like: like creator verification failed. Proceeding anyway');
-			else {
-				logger('diaspora_like: like creator verification failed.');
-				return;
-			}
-		}
-	}
-	
-	logger('diaspora_like: signature check complete.',LOGGER_DEBUG);
-
-	// Phew! Everything checks out. Now create an item.
-
-	// Find the original comment author information.
-	// We need this to make sure we display the comment author
-	// information (name and avatar) correctly.
-	if(strcasecmp($diaspora_handle,$msg['author']) == 0)
-		$person = $contact;
-	else {
-		$person = find_diaspora_person_by_handle($diaspora_handle);
-
-		if(! is_array($person)) {
-			logger('diaspora_like: unable to find author details');
-			return;
-		}
-	}
-
-	$uri = $diaspora_handle . ':' . $guid;
-
-	$activity = ACTIVITY_LIKE;
-
-	$post_type = (($parent_item['resource_type'] === 'photo') ? t('photo') : t('status'));
-
-	$links = array(array('rel' => 'alternate','type' => 'text/html', 'href' => $parent_item['plink']));
-	$objtype = (($parent_item['resource_type'] === 'photo') ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE );
-
-	$body = $parent_item['body'];
-
-
-	$object = json_encode(array(
-		'type'    => $post_type,
-		'id'	  => $parent_item['mid'],
-		'parent'  => (($parent_item['thr_parent']) ? $parent_item['thr_parent'] : $parent_item['parent_mid']),
-		'link'	=> $links,
-		'title'   => $parent_item['title'],
-		'content' => $parent_item['body'],
-		'created' => $parent_item['created'],
-		'edited'  => $parent_item['edited'],
-		'author'  => array(
-			'name'	 => $item_author['xchan_name'],
-			'address'  => $item_author['xchan_addr'],
-			'guid'	 => $item_author['xchan_guid'],
-			'guid_sig' => $item_author['xchan_guid_sig'],
-			'link'	 => array(
-				array('rel' => 'alternate', 'type' => 'text/html', 'href' => $item_author['xchan_url']),
-				array('rel' => 'photo', 'type' => $item_author['xchan_photo_mimetype'], 'href' => $item_author['xchan_photo_m'])),
-			),
-		));
-
-
-	$bodyverb = t('%1$s likes %2$s\'s %3$s');
-
-	$arr = array();
-
-	$arr['uid'] = $importer['channel_id'];
-	$arr['aid'] = $importer['channel_account_id'];
-	$arr['mid'] = $guid;
-	$arr['parent_mid'] = $parent_item['mid'];
-	$arr['owner_xchan'] = $parent_item['owner_xchan'];
-	$arr['author_xchan'] = $person['xchan_hash'];
-
-	$ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
-	$alink = '[url=' . $parent_item['author-link'] . ']' . $parent_item['author-name'] . '[/url]';
-	$plink = '[url='. z_root() .'/display/'.$guid.']'.$post_type.'[/url]';
-	$arr['body'] =  sprintf( $bodyverb, $ulink, $alink, $plink );
-
-	$arr['app']  = 'Diaspora';
-
-	// set the route to that of the parent so downstream hubs won't reject it.
-	$arr['route'] = $parent_item['route'];
-
-	$arr['item_private'] = $parent_item['item_private'];
-	$arr['verb'] = $activity;
-	$arr['obj_type'] = $objtype;
-	$arr['object'] = $object;
-
-	if(! $parent_author_signature) {
-		$key = get_config('system','pubkey');
-		$x = array('signer' => $diaspora_handle, 'body' => $text, 
-			'signed_text' => $signed_data, 'signature' => base64_encode($author_signature));
-		$arr['diaspora_meta'] = json_encode($x);
-	}
-
-	$x = item_store($arr);
-
-	if($x)
-		$message_id = $x['item_id'];
-
-	// if the message isn't already being relayed, notify others
-	// the existence of parent_author_signature means the parent_author or owner
-	// is already relaying. The parent_item['origin'] indicates the message was created on our system
-
-	if(intval($parent_item['item_origin']) && (! $parent_author_signature))
-		proc_run('php','include/notifier.php','comment-import',$message_id);
-
-	return;
-}
-
-function diaspora_retraction($importer,$xml) {
-
-
-	$guid = notags(unxmlify($xml->guid));
-	$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
-	$type = notags(unxmlify($xml->type));
-
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$diaspora_handle);
-	if(! $contact)
-		return;
-
-	if($type === 'Person') {
-		require_once('include/Contact.php');
-		contact_remove($importer['channel_id'],$contact['abook_id']);
-	}
-	elseif($type === 'Post') {
-		$r = q("select * from item where mid = '%s' and uid = %d limit 1",
-			dbesc('guid'),
-			intval($importer['channel_id'])
-		);
-		if(count($r)) {
-			if(link_compare($r[0]['author_xchan'],$contact['xchan_hash'])) {
-				drop_item($r[0]['id'],false);
-			}
-		}
-	}
-
-	return 202;
-	// NOTREACHED
-}
-
-function diaspora_signed_retraction($importer,$xml,$msg) {
-
-
-	$guid = notags(unxmlify($xml->target_guid));
-	$diaspora_handle = notags(unxmlify($xml->sender_handle));
-	$type = notags(unxmlify($xml->target_type));
-	$sig = notags(unxmlify($xml->target_author_signature));
-
-	$parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
-
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$diaspora_handle);
-	if(! $contact) {
-		logger('diaspora_signed_retraction: no contact ' . $diaspora_handle . ' for ' . $importer['channel_id']);
-		return;
-	}
-
-
-	$signed_data = $guid . ';' . $type ;
-	$key = $msg['key'];
-
-	/* How Diaspora performs relayable_retraction signature checking:
-
-	   - If an item has been sent by the item author to the top-level post owner to relay on
-	     to the rest of the contacts on the top-level post, the top-level post owner checks
-	     the author_signature, then creates a parent_author_signature before relaying the item on
-	   - If an item has been relayed on by the top-level post owner, the contacts who receive it
-	     check only the parent_author_signature. Basically, they trust that the top-level post
-	     owner has already verified the authenticity of anything he/she sends out
-	   - In either case, the signature that get checked is the signature created by the person
-	     who sent the salmon
-	*/
-
-	if($parent_author_signature) {
-
-		$parent_author_signature = base64_decode($parent_author_signature);
-
-		if(! rsa_verify($signed_data,$parent_author_signature,$key,'sha256')) {
-			logger('diaspora_signed_retraction: top-level post owner verification failed');
-			return;
-		}
-
-	}
-	else {
-
-		$sig_decode = base64_decode($sig);
-
-		if(! rsa_verify($signed_data,$sig_decode,$key,'sha256')) {
-			logger('diaspora_signed_retraction: retraction owner verification failed.' . print_r($msg,true));
-			return;
-		}
-	}
-
-	if($type === 'StatusMessage' || $type === 'Comment' || $type === 'Like') {
-		$r = q("select * from item where mid = '%s' and uid = %d limit 1",
-			dbesc($guid),
-			intval($importer['channel_id'])
-		);
-		if($r) {
-			if($r[0]['author_xchan'] == $contact['xchan_hash']) {
-
-				drop_item($r[0]['id'],false, DROPITEM_PHASE1);
-
-				// Now check if the retraction needs to be relayed by us
-				//
-				// The first item in the `item` table with the parent id is the parent. However, MySQL doesn't always
-				// return the items ordered by `item`.`id`, in which case the wrong item is chosen as the parent.
-				// The only item with `parent` and `id` as the parent id is the parent item.
-				$p = q("select item_flags from item where parent = %d and id = %d limit 1",
-					$r[0]['parent'],
-					$r[0]['parent']
-				);
-				if($p) {
-					if(intval($p[0]['item_origin']) && (! $parent_author_signature)) {
-
-						// the existence of parent_author_signature would have meant the parent_author or owner
-						// is already relaying.
-
-						logger('diaspora_signed_retraction: relaying relayable_retraction');
-						proc_run('php','include/notifier.php','drop',$r[0]['id']);
-					}
-				}
-			}
-		}
-	}
-	else
-		logger('diaspora_signed_retraction: unknown type: ' . $type);
-
-	return 202;
-	// NOTREACHED
-}
-
-function diaspora_profile($importer,$xml,$msg) {
-
-	$a = get_app();
-	$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
-
-
-	if($diaspora_handle != $msg['author']) {
-		logger('diaspora_post: Potential forgery. Message handle is not the same as envelope sender.');
-		return 202;
-	}
-
-	$contact = diaspora_get_contact_by_handle($importer['channel_id'],$diaspora_handle);
-	if(! $contact)
-		return;
-
-	if($contact['blocked']) {
-		logger('diaspora_post: Ignoring this author.');
-		return 202;
-	}
-
-	$name = unxmlify($xml->first_name) . ((strlen($xml->last_name)) ? ' ' . unxmlify($xml->last_name) : '');
-	$image_url = unxmlify($xml->image_url);
-	$birthday = unxmlify($xml->birthday);
-
-
-	$handle_parts = explode("@", $diaspora_handle);
-	if($name === '') {
-		$name = $handle_parts[0];
-	}
-		 
-	if( preg_match("|^https?://|", $image_url) === 0) {
-		$image_url = "http://" . $handle_parts[1] . $image_url;
-	}
-
-	require_once('include/photo/photo_driver.php');
-
-	$images = import_profile_photo($image_url,$contact['xchan_hash']);
-	
-	// Generic birthday. We don't know the timezone. The year is irrelevant. 
-
-	$birthday = str_replace('1000','1901',$birthday);
-
-	$birthday = datetime_convert('UTC','UTC',$birthday,'Y-m-d');
-
-	// this is to prevent multiple birthday notifications in a single year
-	// if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
-
-	if(substr($birthday,5) === substr($contact['bd'],5))
-		$birthday = $contact['bd'];
-
-	$r = q("update xchan set xchan_name = '%s', xchan_name_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_hash = '%s' ",
-		dbesc($name),
-		dbesc(datetime_convert()),
-		dbesc($images[0]),
-		dbesc($images[1]),
-		dbesc($images[2]),
-		dbesc($images[3]),
-		dbesc(datetime_convert()),
-		intval($contact['xchan_hash'])
-	); 
-
-	return;
-
-}
-
-function diaspora_share($owner,$contact) {
-	$a = get_app();
-
-	$enabled = intval(get_config('system','diaspora_enabled'));
-	if(! $enabled) {
-		logger('diaspora_share: disabled');
-		return;
-	}
-
-	$allowed = get_pconfig($owner['channel_id'],'system','diaspora_allowed');
-	if($allowed === false)
-		$allowed = 1;
-
-	if(! intval($allowed)) {
-		logger('diaspora_share: disallowed for channel ' . $importer['channel_name']);
-		return;
-	}
-
-
-
-	$myaddr = $owner['channel_address'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
-
-	if(! array_key_exists('xchan_hash',$contact)) {
-		$c = q("select * from xchan left join hubloc on xchan_hash = hubloc_hash where xchan_hash = '%s' limit 1",
-			dbesc($contact['hubloc_hash'])
-		);
-		if(! $c) {
-			logger('diaspora_share: ' . $contact['hubloc_hash']  . ' not found.');
-			return;
-		}
-		$contact = $c[0];
-	}
-
-	$theiraddr = $contact['xchan_addr'];
-
-	$tpl = get_markup_template('diaspora_share.tpl');
-	$msg = replace_macros($tpl, array(
-		'$sender' => $myaddr,
-		'$recipient' => $theiraddr
-	));
-
-	$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['channel_prvkey'],$contact['xchan_pubkey'])));
-	return(diaspora_transmit($owner,$contact,$slap, false));
-}
-
-function diaspora_unshare($owner,$contact) {
-
-	$a = get_app();
-	$myaddr = $owner['channel_address'] . '@' .  substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
-
-	$tpl = get_markup_template('diaspora_retract.tpl');
-	$msg = replace_macros($tpl, array(
-		'$guid'   => $owner['channel_guid'],
-		'$type'   => 'Person',
-		'$handle' => $myaddr
-	));
-
-	$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['channel_prvkey'],$contact['xchan_pubkey'])));
-
-	return(diaspora_transmit($owner,$contact,$slap, false));
-}
-
-
-function diaspora_send_status($item,$owner,$contact,$public_batch = false) {
-
-	$a = get_app();
-	$myaddr = $owner['channel_address'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
-
-	if(intval($item['id']) != intval($item['parent'])) {
-		logger('attempted to send a comment as a top-level post');
-		return;
-	}
-
-	$images = array();
-
-	$title = $item['title'];
-	$body = bb2diaspora_itembody($item,true);
-
-/*
-	// We're trying to match Diaspora's split message/photo protocol but
-	// all the photos are displayed on D* as links and not img's - even
-	// though we're sending pretty much precisely what they send us when
-	// doing the same operation.  
-	// Commented out for now, we'll use bb2diaspora to convert photos to markdown
-	// which seems to get through intact.
-
-	$cnt = preg_match_all('|\[img\](.*?)\[\/img\]|',$body,$matches,PREG_SET_ORDER);
-	if($cnt) {
-		foreach($matches as $mtch) {
-			$detail = array();
-			$detail['str'] = $mtch[0];
-			$detail['path'] = dirname($mtch[1]) . '/';
-			$detail['file'] = basename($mtch[1]);
-			$detail['guid'] = $item['guid'];
-			$detail['handle'] = $myaddr;
-			$images[] = $detail;
-			$body = str_replace($detail['str'],$mtch[1],$body);
-		}
-	}
-*/
-
-	if(intval($item['item_consensus'])) {
-		$poll = replace_macros(get_markup_template('diaspora_consensus.tpl'), array(
-			'$guid_q' => random_string(),
-			'$question' => t('Please choose'),
-			'$guid_y' => random_string(),
-			'$agree' => t('Agree'),
-			'$guid_n' => random_string(),
-			'$disagree' => t('Disagree'),
-			'$guid_a' => random_string(),
-			'$abstain' => t('Abstain')
-		));
-	}
-	else
-		$poll = '';
-
-	$public = (($item['item_private']) ? 'false' : 'true');
-
-	require_once('include/datetime.php');
-	$created = datetime_convert('UTC','UTC',$item['created'],'Y-m-d H:i:s \U\T\C');
-
-	// Detect a share element and do a reshare
-	// see: https://github.com/Raven24/diaspora-federation/blob/master/lib/diaspora-federation/entities/reshare.rb
-	if (!$item['item_private'] AND ($ret = diaspora_is_reshare($item["body"]))) {
-		$tpl = get_markup_template('diaspora_reshare.tpl');
-		$msg = replace_macros($tpl, array(
-			'$root_handle' => xmlify($ret['root_handle']),
-			'$root_guid' => $ret['root_guid'],
-			'$guid' => $item['mid'],
-			'$handle' => xmlify($myaddr),
-			'$public' => $public,
-			'$created' => $created,
-			'$provider' => (($item['app']) ? $item['app'] : t('$projectname'))
-		));
-	} else {
-		$tpl = get_markup_template('diaspora_post.tpl');
-		$msg = replace_macros($tpl, array(
-			'$body' => xmlify($body),
-			'$guid' => $item['mid'],
-			'$poll' => $poll,
-			'$handle' => xmlify($myaddr),
-			'$public' => $public,
-			'$created' => $created,
-			'$provider' => (($item['app']) ? $item['app'] : t('$projectname'))
-		));
-	}
-
-	logger('diaspora_send_status: '.$owner['channel_name'].' -> '.$contact['xchan_name'].' base message: ' . $msg, LOGGER_DATA);
-
-	$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['channel_prvkey'],$contact['xchan_pubkey'],$public_batch)));
-
-	$return_code = diaspora_transmit($owner,$contact,$slap,$public_batch);
-
-//	logger('diaspora_send_status: guid: '.$item['mid'].' result '.$return_code, LOGGER_DEBUG);
-
-	if(count($images)) {
-		diaspora_send_images($item,$owner,$contact,$images,$public_batch);
-	}
-
-	return $return_code;
-}
-
-function diaspora_is_reshare($body) {
-	
-	$body = trim($body);
-
-	// Skip if it isn't a pure repeated messages
-	// Does it start with a share?
-	if(strpos($body, "[share") > 0)
-		return(false);
-
-	// Does it end with a share?
-	if(strlen($body) > (strrpos($body, "[/share]") + 8))
-		return(false);
-
-	$attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
-	// Skip if there is no shared message in there
-	if ($body == $attributes)
-		return(false);
-
-	$profile = "";
-	preg_match("/profile='(.*?)'/ism", $attributes, $matches);
-	if ($matches[1] != "")
-		$profile = $matches[1];
-
-	preg_match('/profile="(.*?)"/ism', $attributes, $matches);
-	if ($matches[1] != "")
-		$profile = $matches[1];
-
-	$ret= array();
-
-	$ret["root_handle"] = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
-	if (($ret["root_handle"] == $profile) OR ($ret["root_handle"] == ""))
-		return(false);
-
-	$link = "";
-	preg_match("/link='(.*?)'/ism", $attributes, $matches);
-	if ($matches[1] != "")
-		$link = $matches[1];
-
-	preg_match('/link="(.*?)"/ism', $attributes, $matches);
-	if ($matches[1] != "")
-		$link = $matches[1];
-
-	$ret["root_guid"] = preg_replace("=https?://(.*)/posts/(.*)=ism", "$2", $link);
-	if (($ret["root_guid"] == $link) OR ($ret["root_guid"] == ""))
-		return(false);
-
-	return($ret);
-}
-
-function diaspora_send_images($item,$owner,$contact,$images,$public_batch = false) {
-	$a = get_app();
-	if(! count($images))
-		return;
-	$mysite = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://') + 3) . '/photo';
-
-	$tpl = get_markup_template('diaspora_photo.tpl');
-	foreach($images as $image) {
-		if(! stristr($image['path'],$mysite))
-			continue;
-		$resource = str_replace('.jpg','',$image['file']);
-		$resource = substr($resource,0,strpos($resource,'-'));
-
-		$r = q("select * from photo where `resource_id` = '%s' and `uid` = %d limit 1",
-			dbesc($resource),
-			intval($owner['uid'])
-		);
-		if(! $r)
-			continue;
-		$public = (($r[0]['allow_cid'] || $r[0]['allow_gid'] || $r[0]['deny_cid'] || $r[0]['deny_gid']) ? 'false' : 'true' );
-		$msg = replace_macros($tpl,array(
-			'$path' => xmlify($image['path']),
-			'$filename' => xmlify($image['file']),
-			'$msg_guid' => xmlify($image['guid']),
-			'$guid' => xmlify($r[0]['resource_id']),
-			'$handle' => xmlify($image['handle']),
-			'$public' => xmlify($public),
-			'$created_at' => xmlify(datetime_convert('UTC','UTC',$r[0]['created'],'Y-m-d H:i:s \U\T\C'))
-		));
-
-
-		logger('diaspora_send_photo: base message: ' . $msg, LOGGER_DATA);
-		$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['channel_prvkey'],$contact['xchan_pubkey'],$public_batch)));
-
-		diaspora_transmit($owner,$contact,$slap,$public_batch);
-	}
-
-}
-
-function diaspora_send_followup($item,$owner,$contact,$public_batch = false) {
-
-	$a = get_app();
-	$myaddr = $owner['channel_address'] . '@' . get_app()->get_hostname();
-	$theiraddr = $contact['xchan_addr'];
-
-	// Diaspora doesn't support threaded comments, but some
-	// versions of Diaspora (i.e. Diaspora-pistos) support
-	// likes on comments
-	if(($item['verb'] === ACTIVITY_LIKE || $item['verb'] === ACTIVITY_DISLIKE) && $item['thr_parent']) {
-		$p = q("select mid, parent_mid from item where mid = '%s' limit 1",
-			dbesc($item['thr_parent'])
-		);
-	}
-	else {
-		// The first item in the `item` table with the parent id is the parent. However, MySQL doesn't always
-		// return the items ordered by `item`.`id`, in which case the wrong item is chosen as the parent.
-		// The only item with `parent` and `id` as the parent id is the parent item.
-		$p = q("select * from item where parent = %d and id = %d limit 1",
-			intval($item['parent']),
-			intval($item['parent'])
-		);
-	}
-	if($p)
-		$parent = $p[0];
-	else
-		return;
-
-
-	if(($item['verb'] === ACTIVITY_LIKE) && ($parent['mid'] === $parent['parent_mid'])) {
-		$tpl = get_markup_template('diaspora_like.tpl');
-		$like = true;
-		$target_type = 'Post';
-		$positive = 'true';
-
-		if(intval($item['item_deleted']))
-			logger('diaspora_send_followup: received deleted "like". Those should go to diaspora_send_retraction');
-	}
-	else {
-		$tpl = get_markup_template('diaspora_comment.tpl');
-		$like = false;
-	}
-
-	if($item['diaspora_meta'] && ! $like) {
-		$diaspora_meta = json_decode($item['diaspora_meta'],true);
-		if($diaspora_meta) {
-			if(array_key_exists('iv',$diaspora_meta)) {
-				$key = get_config('system','prvkey');
-				$meta = json_decode(crypto_unencapsulate($diaspora_meta,$key),true);
-			}
-			else
-				$meta = $diaspora_meta;
-		}
-		$signed_text = $meta['signed_text'];
-		$authorsig = $meta['signature'];
-		$signer = $meta['signer'];
-		$text = $meta['body'];
-	}
-	else {
-		$text = bb2diaspora_itembody($item);
-
-		// sign it
-
-		if($like)
-			$signed_text = $item['mid'] . ';' . $target_type . ';' . $parent['mid'] . ';' . $positive . ';' . $myaddr;
-		else
-			$signed_text = $item['mid'] . ';' . $parent['mid'] . ';' . $text . ';' . $myaddr;
-
-		$authorsig = base64_encode(rsa_sign($signed_text,$owner['channel_prvkey'],'sha256'));
-
-	}
-
-	$msg = replace_macros($tpl,array(
-		'$guid' => xmlify($item['mid']),
-		'$parent_guid' => xmlify($parent['mid']),
-		'$target_type' =>xmlify($target_type),
-		'$authorsig' => xmlify($authorsig),
-		'$body' => xmlify($text),
-		'$positive' => xmlify($positive),
-		'$handle' => xmlify($myaddr)
-	));
-
-	logger('diaspora_followup: base message: ' . $msg, LOGGER_DATA);
-
-	$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['channel_prvkey'],$contact['xchan_pubkey'],$public_batch)));
-
-
-	return(diaspora_transmit($owner,$contact,$slap,$public_batch));
-}
-
-
-function diaspora_send_relay($item,$owner,$contact,$public_batch = false) {
-
-
-	$a = get_app();
-	$myaddr = $owner['channel_address'] . '@' . get_app()->get_hostname();
-
-	$text = bb2diaspora_itembody($item);
-
-	$body = $text;
-
-	// Diaspora doesn't support threaded comments, but some
-	// versions of Diaspora (i.e. Diaspora-pistos) support
-	// likes on comments
-
-	if($item['verb'] === ACTIVITY_LIKE && $item['thr_parent']) {
-		$p = q("select * from item where mid = '%s' limit 1",
-				dbesc($item['thr_parent'])
-		);
-	}
-	else {
-		// The first item in the `item` table with the parent id is the parent. However, MySQL doesn't always
-		// return the items ordered by `item`.`id`, in which case the wrong item is chosen as the parent.
-		// The only item with `parent` and `id` as the parent id is the parent item.
-		$p = q("select * from item where parent = %d and id = %d limit 1",
-			   intval($item['parent']),
-			   intval($item['parent'])
-			  );
-	}
-
-	if($p)
-		$parent = $p[0];
-	else {
-		logger('diaspora_send_relay: no parent');
-		return;
-	}
-
-	$like = false;
-	$relay_retract = false;
-	$sql_sign_id = 'iid';
-
-	if( intval($item['item_deleted'])) {
-		$relay_retract = true;
-
-		$target_type = ( ($item['verb'] === ACTIVITY_LIKE) ? 'Like' : 'Comment');
-
-		$sql_sign_id = 'retract_iid';
-		$tpl = get_markup_template('diaspora_relayable_retraction.tpl');
-	}
-	elseif($item['verb'] === ACTIVITY_LIKE) {
-		$like = true;
-
-		$target_type = ( $parent['mid'] === $parent['parent_mid']  ? 'Post' : 'Comment');
-//		$positive = (intval($item['item_deleted']) ? 'false' : 'true');
-		$positive = 'true';
-
-		$tpl = get_markup_template('diaspora_like_relay.tpl');
-	}
-	else { // item is a comment
-		$tpl = get_markup_template('diaspora_comment_relay.tpl');
-	}
-
-	$diaspora_meta = (($item['diaspora_meta']) ? json_decode($item['diaspora_meta'],true) : '');
-	if($diaspora_meta) {
-		if(array_key_exists('iv',$diaspora_meta)) {
-			$key = get_config('system','prvkey');
-			$meta = json_decode(crypto_unencapsulate($diaspora_meta,$key),true);
-		}
-		else
-			$meta = $diaspora_meta;
-		$sender_signed_text = $meta['signed_text'];
-		$authorsig = $meta['signature'];
-		$handle = $meta['signer'];
-		$text = $meta['body'];
-	}
-	else
-		logger('diaspora_send_relay: original author signature not found');
-
-	/* Since the author signature is only checked by the parent, not by the relay recipients,
-	 * I think it may not be necessary for us to do so much work to preserve all the original
-	 * signatures. The important thing that Diaspora DOES need is the original creator's handle.
-	 * Let's just generate that and forget about all the original author signature stuff.
-	 *
-	 * Note: this might be more of an problem if we want to support likes on comments for older
-	 * versions of Diaspora (diaspora-pistos), but since there are a number of problems with
-	 * doing that, let's ignore it for now.
-	 *
-	 *
-	 */
-// bug - nomadic identity may/will affect diaspora_handle_from_contact
-	if(! $handle) {
-		if($item['author_xchan'] === $owner['channel_hash']) 
-			$handle = $owner['channel_address'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
-		else
-			$handle = diaspora_handle_from_contact($item['author_xchan']);
-	}
-	if(! $handle) {
-		logger('diaspora_send_relay: no handle');
-		return;
-	}
-
-	if(! $sender_signed_text) {
-		if($relay_retract)
-			$sender_signed_text = $item['mid'] . ';' . $target_type;
-		elseif($like)
-			$sender_signed_text = $positive . ';' . $item['mid'] . ';' . $target_type . ';' . $parent['mid'] . ';' . $handle;
-		else
-			$sender_signed_text = $item['mid'] . ';' . $parent['mid'] . ';' . $text . ';' . $handle;
-	}
-
-	// Sign the relayable with the top-level owner's signature
-	//
-	// We'll use the $sender_signed_text that we just created, instead of the $signed_text
-	// stored in the database, because that provides the best chance that Diaspora will
-	// be able to reconstruct the signed text the same way we did. This is particularly a
-	// concern for the comment, whose signed text includes the text of the comment. The
-	// smallest change in the text of the comment, including removing whitespace, will
-	// make the signature verification fail. Since we translate from BB code to Diaspora's
-	// markup at the top of this function, which is AFTER we placed the original $signed_text
-	// in the database, it's hazardous to trust the original $signed_text.
-
-	$parentauthorsig = base64_encode(rsa_sign($sender_signed_text,$owner['channel_prvkey'],'sha256'));
-
-	if(! $text)
-		logger('diaspora_send_relay: no text');
-
-	$msg = replace_macros($tpl,array(
-		'$guid' => xmlify($item['mid']),
-		'$parent_guid' => xmlify($parent['mid']),
-		'$target_type' =>xmlify($target_type),
-		'$authorsig' => xmlify($authorsig),
-		'$parentsig' => xmlify($parentauthorsig),
-		'$body' => xmlify($text),
-		'$positive' => xmlify($positive),
-		'$handle' => xmlify($handle)
-	));
-
-	logger('diaspora_send_relay: base message: ' . $msg, LOGGER_DATA);
-
-	$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['channel_prvkey'],$contact['xchan_pubkey'],$public_batch)));
-
-	return(diaspora_transmit($owner,$contact,$slap,$public_batch));
-
-}
-
-
-
-function diaspora_send_retraction($item,$owner,$contact,$public_batch = false) {
-
-	$a = get_app();
-	$myaddr = $owner['channel_address'] . '@' .  get_app()->get_hostname();
-
-	// Check whether the retraction is for a top-level post or whether it's a relayable
-	if( $item['mid'] !== $item['parent_mid'] ) {
-
-		$tpl = get_markup_template('diaspora_relay_retraction.tpl');
-		$target_type = (($item['verb'] === ACTIVITY_LIKE) ? 'Like' : 'Comment');
-	}
-	else {
-		
-		$tpl = get_markup_template('diaspora_signed_retract.tpl');
-		$target_type = 'StatusMessage';
-	}
-
-	$signed_text = $item['mid'] . ';' . $target_type;
-
-	$msg = replace_macros($tpl, array(
-		'$guid'   => xmlify($item['mid']),
-		'$type'   => xmlify($target_type),
-		'$handle' => xmlify($myaddr),
-		'$signature' => xmlify(base64_encode(rsa_sign($signed_text,$owner['channel_prvkey'],'sha256')))
-	));
-
-	$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['channel_prvkey'],$contact['xchan_pubkey'],$public_batch)));
-
-	return(diaspora_transmit($owner,$contact,$slap,$public_batch));
-}
-
-function diaspora_send_mail($item,$owner,$contact) {
-
-	$a = get_app();
-	$myaddr = $owner['channel_address'] . '@' .  get_app()->get_hostname();
-
-	$r = q("select * from conv where id = %d and uid = %d limit 1",
-		intval($item['convid']),
-		intval($item['channel_id'])
-	);
-
-	if(! count($r)) {
-		logger('diaspora_send_mail: conversation not found.');
-		return;
-	}
-	$cnv = $r[0];
-
-	$conv = array(
-		'guid' => xmlify($cnv['guid']),
-		'subject' => xmlify($cnv['subject']),
-		'created_at' => xmlify(datetime_convert('UTC','UTC',$cnv['created'],'Y-m-d H:i:s \U\T\C')),
-		'diaspora_handle' => xmlify($cnv['creator']),
-		'participant_handles' => xmlify($cnv['recips'])
-	);
-
-	if(array_key_exists('mail_obscured',$item) && intval($item['mail_obscured'])) {
-		if($item['title'])
-			$item['title'] = base64url_decode(str_rot47($item['title']));
-		if($item['body'])
-			$item['body'] = base64url_decode(str_rot47($item['body']));
-	}
-
-
-	$body = bb2diaspora($item['body']);
-	$created = datetime_convert('UTC','UTC',$item['created'],'Y-m-d H:i:s \U\T\C');
- 
-	$signed_text =  $item['mid'] . ';' . $cnv['guid'] . ';' . $body .  ';' 
-		. $created . ';' . $myaddr . ';' . $cnv['guid'];
-
-	$sig = base64_encode(rsa_sign($signed_text,$owner['channel_prvkey'],'sha256'));
-
-	$msg = array(
-		'guid' => xmlify($item['mid']),
-		'parent_guid' => xmlify($cnv['guid']),
-		'parent_author_signature' => (($item['reply']) ? null : xmlify($sig)),
-		'author_signature' => xmlify($sig),
-		'text' => xmlify($body),
-		'created_at' => xmlify($created),
-		'diaspora_handle' => xmlify($myaddr),
-		'conversation_guid' => xmlify($cnv['guid'])
-	);
-
-	if($item['reply']) {
-		$tpl = get_markup_template('diaspora_message.tpl');
-		$xmsg = replace_macros($tpl, array('$msg' => $msg));
-	}
-	else {
-		$conv['messages'] = array($msg);
-		$tpl = get_markup_template('diaspora_conversation.tpl');
-		$xmsg = replace_macros($tpl, array('$conv' => $conv));
-	}
-
-	logger('diaspora_conversation: ' . print_r($xmsg,true), LOGGER_DATA);
-
-	$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($xmsg,$owner,$contact,$owner['channel_prvkey'],$contact['xchan_pubkey'],false)));
-
-	return(diaspora_transmit($owner,$contact,$slap,false));
-
-
-}
-
-function diaspora_transmit($owner,$contact,$slap,$public_batch,$queue_run=false) {
-
-	$enabled = intval(get_config('system','diaspora_enabled'));
-	if(! $enabled) {
-		return 200;
-	}
-
-	$allowed = get_pconfig($owner['channel_id'],'system','diaspora_allowed');
-	if($allowed === false)
-		$allowed = 1;
-
-	if(! intval($allowed)) {
-		return 200;
-	}
-
-	if($public_batch)
-		$dest_url = $contact['hubloc_callback'] . '/public';
-	else
-		$dest_url = $contact['hubloc_callback'] . '/users/' . $contact['hubloc_guid'];
-
-	logger('diaspora_transmit: URL: ' . $dest_url, LOGGER_DEBUG);	
-
-	if(intval(get_config('system','diaspora_test')))
-		return 200;
-
-	$a = get_app();
-	$logid = random_string(4);
-
-	logger('diaspora_transmit: ' . $logid . ' ' . $dest_url, LOGGER_DEBUG);
-
-	$hash = random_string();
-
-	$interval = ((get_config('system','delivery_interval') !== false) 
-		? intval(get_config('system','delivery_interval')) : 2 );
-
-	q("insert into outq ( outq_hash, outq_account, outq_channel, outq_driver, outq_posturl, outq_async, outq_created, outq_updated, outq_notify, outq_msg ) values ( '%s', %d, %d, '%s', '%s', %d, '%s', '%s', '%s', '%s' )",
-		dbesc($hash),
-		intval($owner['account_id']),
-		intval($owner['channel_id']),
-		dbesc('post'),
-		dbesc($dest_url),
-		intval(1),
-		dbesc(datetime_convert()),
-		dbesc(datetime_convert()),
-		dbesc(''),
-		dbesc($slap)
-	);
-
-	proc_run('php','include/deliver.php',$hash);
-	if($interval)
-		@time_sleep_until(microtime(true) + (float) $interval);
-
-}
diff --git a/include/notifier.php b/include/notifier.php
index e4cfbd85d..62aea4106 100644
--- a/include/notifier.php
+++ b/include/notifier.php
@@ -113,11 +113,9 @@ function notifier_run($argv, $argc){
 				intval($r[0]['abook_channel'])
 			);
 			if($s) {
-				if($r[0]['hubloc_network'] === 'diaspora' || $r[0]['hubloc_network'] === 'friendica-over-diaspora') {
-					require_once('include/diaspora.php');
-					diaspora_share($s[0],$r[0]);
-				}
-				else {
+				$perm_update = array('sender' => $s[0], 'recipient' => $r[0], 'success' => false);
+				call_hooks('permissions_update',$perm_update);
+				if(! $perm_update['success']) {
 					// send a refresh message to each hub they have registered here	
 					$h = q("select * from hubloc where hubloc_hash = '%s' 
 						and not (hubloc_flags & %d) > 0  and not (hubloc_status & %d) > 0",
@@ -606,18 +604,9 @@ function notifier_run($argv, $argc){
 
 	foreach($dhubs as $hub) {
 
-		if($hub['hubloc_network'] === 'diaspora' || $hub['hubloc_network'] === 'friendica-over-diaspora') {
-			if(! get_config('system','diaspora_enabled'))
-				continue;
-
-			// allow this to be set per message
-
-			if(strpos($target_item['postopts'],'nodspr') !== false)
-				continue;
-
-			require_once('include/diaspora.php');
+		if($hub['hubloc_network'] !== 'zot') {
 
-			diaspora_process_outbound(array(
+			$narr = array(
 				'channel' => $channel,
 				'env_recips' => $env_recips,
 				'recipients' => $recipients,
@@ -638,13 +627,14 @@ function notifier_run($argv, $argc){
 				'normal_mode' => $normal_mode,
 				'packet_type' => $packet_type,
 				'walltowall' => $walltowall
-			));
+			);
+
 
+			call_hooks('notifier_hub',$narr);
 			continue;
 
 		}
 
-
 		// default: zot protocol