2812 lines
		
	
	
		
			84 KiB
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			2812 lines
		
	
	
		
			84 KiB
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
	
	
	
| <?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;
 | |
| 	}
 | |
| 
 | |
| 	// find everybody following or allowing this author
 | |
| 
 | |
| 
 | |
| 	$r = q("SELECT * from channel where channel_id in ( SELECT abook_channel from abook left join xchan on abook_xchan = xchan_hash WHERE xchan_network like '%%diaspora%%' and xchan_addr = '%s' )",
 | |
| 		dbesc($msg['author'])
 | |
| 	);
 | |
| 
 | |
| 	// also need to look for those following public streams
 | |
| 
 | |
| 	if($r) {
 | |
| 		foreach($r as $rr) {
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| 			logger('diaspora_public: delivering to: ' . $rr['channel_name'] . ' (' . $rr['channel_address'] . ') ');
 | |
| 			diaspora_dispatch($rr,$msg);
 | |
| 		}
 | |
| 	}
 | |
| 	else
 | |
| 		logger('diaspora_public: no subscribers');
 | |
| }
 | |
| 
 | |
| 
 | |
| 
 | |
| function diaspora_dispatch($importer,$msg,$attempt=1) {
 | |
| 
 | |
| 	$ret = 0;
 | |
| 
 | |
| 	$enabled = intval(get_config('system','diaspora_enabled'));
 | |
| 	if(! $enabled) {
 | |
| 		logger('mod-diaspora: disabled');
 | |
| 		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,$attempt);
 | |
| 	}
 | |
| 	elseif($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 $bl) {
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| 			if($bl && strpos($s,$bl) !== false) {
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| 				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,
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| 				'recipients' => $recipients,
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| 				'item' => $item,
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| 				'target_item' => $target_item,
 | |
| 				'hub' => $hub,
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| 				'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' => $walltowall,
 | |
| 			));
 | |
| */
 | |
| 
 | |
| 
 | |
| 	if($arr['location'])
 | |
| 		return;
 | |
| 
 | |
| 
 | |
| 	$target_item = $arr['target_item'];
 | |
| 
 | |
| 	if($target_item && array_key_exists('item_flags',$target_item) && ($target_item['item_flags'] & 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(! $contact['xchan_pubkey'])
 | |
| 				continue;
 | |
| 
 | |
| 			if(($target_item['item_restrict'] & 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 = $arr['hub'];
 | |
| 
 | |
| 		if(($target_item['deleted']) 
 | |
| 			&& ($target_item['mid'] === $target_item['parent_mod'])) {
 | |
| 			// 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) {
 | |
| 
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| 	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;
 | |
| 
 | |
| 	$r = q("SELECT * FROM abook left join xchan on xchan_hash = abook_xchan where xchan_addr = '%s' and abook_channel = %d limit 1",
 | |
| 		dbesc($handle),
 | |
| 		intval($uid)
 | |
| 	);
 | |
| 	return (($r) ? $r[0] : false);
 | |
| }
 | |
| 
 | |
| function find_diaspora_person_by_handle($handle) {
 | |
| 
 | |
| 	$person = false;
 | |
| 
 | |
| 	if(diaspora_is_blacklisted($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) {
 | |
| 
 | |
| 		// try webfinger. Make sure to distinguish between diaspora, 
 | |
| 		// redmatrix w/diaspora protocol and friendica w/diaspora protocol.
 | |
| 
 | |
| 		$result = discover_by_webbie($handle);
 | |
| 		if($result) {
 | |
| 			$r = q("select * from xchan where xchan_addr = '%s' limit 1",
 | |
| 				dbesc($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;
 | |
| 	}
 | |
| 
 | |
| 	$role = get_pconfig($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)
 | |
| 		$default_perms = intval(get_pconfig($channel['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;
 | |
| 
 | |
| 	$r = q("insert into abook ( abook_account, abook_channel, abook_xchan, abook_my_perms, abook_their_perms, abook_closeness, abook_rating, abook_created, abook_updated, abook_connected, abook_dob, abook_flags) values ( %d, %d, '%s', %d, %d, %d, %d, '%s', '%s', '%s', '%s', %d )",
 | |
| 		intval($importer['channel_account_id']),
 | |
| 		intval($importer['channel_id']),
 | |
| 		dbesc($ret['xchan_hash']),
 | |
| 		intval($default_perms),
 | |
| 		intval($their_perms),
 | |
| 		intval(99),
 | |
| 		intval(0),
 | |
| 		dbesc(datetime_convert()),
 | |
| 		dbesc(datetime_convert()),
 | |
| 		dbesc(datetime_convert()),
 | |
| 		dbesc(NULL_DATE),
 | |
| 		intval(($default_perms) ? 0 : ABOOK_FLAG_PENDING)
 | |
| 	);
 | |
| 		
 | |
| 
 | |
| 	if($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]);
 | |
| 		
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	// 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
 | |
| 			$app = 'Diaspora';
 | |
| 	}
 | |
| 
 | |
| 
 | |
| 	if(! perm_is_allowed($importer['channel_id'],$contact['xchan_hash'],'send_stream')) {
 | |
| 		logger('diaspora_post: Ignoring this author.');
 | |
| 		return 202;
 | |
| 	}
 | |
| 
 | |
| 	$search_guid = ((strlen($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);
 | |
| 	}
 | |
| 
 | |
| 
 | |
| //WTF? FIXME
 | |
| 	// Add OEmbed and other information to the body
 | |
| //	$body = add_page_info_to_body($body, false, true);
 | |
| 
 | |
| 	$datarray = array();
 | |
| 
 | |
| 	
 | |
| 	$tags = get_tags($body);
 | |
| 
 | |
| 
 | |
| 	if(count($tags)) {
 | |
| 
 | |
| 		$datarray['term'] = array();
 | |
| 
 | |
| 		foreach($tags as $tag) {
 | |
| 			if(strpos($tag,'#') === 0) {
 | |
| 				if((strpos($tag,'[url=')) || (strpos($tag,'[zrl')))
 | |
| 					continue;
 | |
| 
 | |
| 				// don't link tags that are already embedded in links
 | |
| 
 | |
| 				if(preg_match('/\[(.*?)' . preg_quote($tag,'/') . '(.*?)\]/',$body))
 | |
| 					continue;
 | |
| 				if(preg_match('/\[(.*?)\]\((.*?)' . preg_quote($tag,'/') . '(.*?)\)/',$body))
 | |
| 					continue;
 | |
| 
 | |
| 				$basetag = str_replace('_',' ',substr($tag,1));
 | |
| 				$body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
 | |
| 
 | |
| 				$datarray['term'][] = array(
 | |
| 					'uid'   => $importer['channel_id'],
 | |
| 					'type'  => TERM_HASHTAG,
 | |
| 					'otype' => TERM_OBJ_POST,
 | |
| 					'term'  => $basetag,
 | |
| 					'url'   => z_root() . '/search?tag=' . rawurlencode($basetag)
 | |
| 				);
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	$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]
 | |
| 			);
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 
 | |
| 	// this won't work for Friendica or Redmatrix but it's probably the best we can do.
 | |
| 	$plink = 'https://'.substr($diaspora_handle,strpos($diaspora_handle,'@')+1).'/posts/'.$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_flags'] = ITEM_UNSEEN|ITEM_THREAD_TOP;
 | |
| 
 | |
| 
 | |
| 	$result = item_store($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(! $contact)
 | |
| 		return;
 | |
| 
 | |
| 	if(! perm_is_allowed($importer['channel_id'],$contact['xchan_hash'],'send_stream')) {
 | |
| 		logger('diaspora_reshare: Ignoring this author: ' . $diaspora_handle . ' ' . print_r($xml,true));
 | |
| 		return 202;
 | |
| 	}
 | |
| 
 | |
| 	$search_guid = ((strlen($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;
 | |
| 	}
 | |
| 
 | |
| 	//if(! $body) {
 | |
| 	//	logger('diaspora_reshare: empty body: source= ' . $x);
 | |
| 	//	return;
 | |
| 	//}
 | |
| 
 | |
| 	$person = find_diaspora_person_by_handle($orig_author);
 | |
| 
 | |
| 	if($person) {
 | |
| 		$orig_author_name = $person['xchan_name'];
 | |
| 		$orig_author_link = $person['xchan_url'];
 | |
| 		$orig_author_photo = $person['xchan_photo_m'];
 | |
| 	}
 | |
| 
 | |
| 	$newbody = "[share author='" . urlencode($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]";
 | |
| 
 | |
| 
 | |
| 	$created = unxmlify($xml->created_at);
 | |
| 	$private = ((unxmlify($xml->public) == 'false') ? 1 : 0);
 | |
| 
 | |
| 	$datarray = array();
 | |
| 
 | |
| 	$str_tags = '';
 | |
| 
 | |
| 	$tags = get_tags($newbody);
 | |
| 
 | |
| 
 | |
| 	if(count($tags)) {
 | |
| 
 | |
| 		$datarray['term'] = array();
 | |
| 
 | |
| 		foreach($tags as $tag) {
 | |
| 			if(strpos($tag,'#') === 0) {
 | |
| 				if((strpos($tag,'[url=')) || (strpos($tag,'[zrl')))
 | |
| 					continue;
 | |
| 
 | |
| 				// don't link tags that are already embedded in links
 | |
| 
 | |
| 				if(preg_match('/\[(.*?)' . preg_quote($tag,'/') . '(.*?)\]/',$newbody))
 | |
| 					continue;
 | |
| 				if(preg_match('/\[(.*?)\]\((.*?)' . preg_quote($tag,'/') . '(.*?)\)/',$newbody))
 | |
| 					continue;
 | |
| 
 | |
| 				$basetag = str_replace('_',' ',substr($tag,1));
 | |
| 				$newbody = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$newbody);
 | |
| 
 | |
| 				$datarray['term'][] = array(
 | |
| 					'uid'   => $importer['channel_id'],
 | |
| 					'type'  => TERM_HASHTAG,
 | |
| 					'otype' => TERM_OBJ_POST,
 | |
| 					'term'  => $basetag,
 | |
| 					'url'   => z_root() . '/search?tag=' . rawurlencode($basetag)
 | |
| 				);
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	$cnt = preg_match_all('/@\[url=(.*?)\](.*?)\[\/url\]/ism',$newbody,$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]
 | |
| 			);
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	// This won't work on redmatrix
 | |
| 	$plink = 'https://'.substr($diaspora_handle,strpos($diaspora_handle,'@')+1).'/posts/'.$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';
 | |
| 
 | |
| 
 | |
| 	$result = item_store($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(! $contact)
 | |
| 		return;
 | |
| 
 | |
| 	if(! perm_is_allowed($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;
 | |
| 	}
 | |
| 
 | |
| 	$plink = 'https://'.substr($diaspora_handle,strpos($diaspora_handle,'@')+1).'/posts/'.$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: ' . $msg['author']);
 | |
| 		return;
 | |
| 	}
 | |
| 
 | |
| 	if(! perm_is_allowed($importer['channel_id'],$contact['xchan_hash'],'post_comments')) {
 | |
| 		logger('diaspora_comment: Ignoring this author.');
 | |
| 		return 202;
 | |
| 	}
 | |
| 
 | |
| 	// Friendica is currently truncating guids at 64 chars
 | |
| 
 | |
| 	$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;
 | |
| 	}
 | |
| 
 | |
| 	$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];
 | |
| 
 | |
| 
 | |
| 	/* 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']
 | |
| 
 | |
| 		$author_signature = base64_decode($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);
 | |
| 
 | |
| 	$datarray = array();
 | |
| 
 | |
| 	$tags = get_tags($body);
 | |
| 
 | |
| 	if(count($tags)) {
 | |
| 
 | |
| 		$datarray['term'] = array();
 | |
| 
 | |
| 		foreach($tags as $tag) {
 | |
| 			if(strpos($tag,'#') === 0) {
 | |
| 				if((strpos($tag,'[url=')) || (strpos($tag,'[zrl')))
 | |
| 					continue;
 | |
| 
 | |
| 				// don't link tags that are already embedded in links
 | |
| 
 | |
| 				if(preg_match('/\[(.*?)' . preg_quote($tag,'/') . '(.*?)\]/',$body))
 | |
| 					continue;
 | |
| 				if(preg_match('/\[(.*?)\]\((.*?)' . preg_quote($tag,'/') . '(.*?)\)/',$body))
 | |
| 					continue;
 | |
| 
 | |
| 				$basetag = str_replace('_',' ',substr($tag,1));
 | |
| 				$body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
 | |
| 
 | |
| 				$datarray['term'][] = array(
 | |
| 					'uid'   => $importer['channel_id'],
 | |
| 					'type'  => TERM_HASHTAG,
 | |
| 					'otype' => TERM_OBJ_POST,
 | |
| 					'term'  => $basetag,
 | |
| 					'url'   => z_root() . '/search?tag=' . rawurlencode($basetag)
 | |
| 				);
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	$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]
 | |
| 			);
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	$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));
 | |
| 		$datarray['diaspora_meta'] = json_encode(crypto_encapsulate(json_encode($x),$key));
 | |
| 	}
 | |
| 
 | |
| 	$result = item_store($datarray);
 | |
| 
 | |
| 	if($result && $result['success'])
 | |
| 		$message_id = $result['item_id'];
 | |
| 
 | |
| 	if(($parent_item['item_flags'] & 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);
 | |
| 
 | |
| 		$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;
 | |
| 		}
 | |
| 
 | |
| 		$key = get_config('system','pubkey');
 | |
| 		if($subject)
 | |
| 			$subject = json_encode(crypto_encapsulate($subject,$key));
 | |
| 		if($body)
 | |
| 			$body  = json_encode(crypto_encapsulate($body,$key));
 | |
| 
 | |
| 		q("insert into mail ( `channel_id`, `convid`, `from_xchan`,`to_xchan`,`title`,`body`,`mail_flags`,`mid`,`parent_mid`,`created`) values ( %d, %d, '%s', '%s', '%s', '%s', %d, '%s', '%s', '%s')",
 | |
| 			intval($importer['channel_id']),
 | |
| 			intval($conversation['id']),
 | |
| 			dbesc($person['xchan_hash']),
 | |
| 			dbesc($importer['channel_hash']),
 | |
| 			dbesc($subject),
 | |
| 			dbesc($body),
 | |
| 			intval(MAIL_OBSCURED),
 | |
| 			dbesc($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);
 | |
| 	$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)
 | |
| 		$subject = json_encode(crypto_encapsulate($subject,$key));
 | |
| 	if($body)
 | |
| 		$body  = json_encode(crypto_encapsulate($body,$key));
 | |
| 
 | |
| 	q("insert into mail ( `channel_id`, `convid`, `from_xchan`,`to_xchan`,`title`,`body`,`mail_flags`,`mid`,`parent_mid`,`created`) values ( %d, %d, '%s', '%s', '%s', '%s', '%d','%s','%s','%s')",
 | |
| 		intval($importer['channel_id']),
 | |
| 		intval($conversation['id']),
 | |
| 		dbesc($person['xchan_hash']),
 | |
| 		dbesc($importer['xchan_hash']),
 | |
| 		dbesc($subject),
 | |
| 		dbesc($body),
 | |
| 		intval(MAIL_OBSCURED),
 | |
| 		dbesc($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,$attempt=1) {
 | |
| 
 | |
| 	$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: ' . $diaspora_handle);
 | |
| 		return;
 | |
| 	}
 | |
| 
 | |
| 	if(! perm_is_allowed($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 ' . $importer['channel_name']);
 | |
| 		return;
 | |
| 	}
 | |
| 
 | |
| 
 | |
| 	if(! perm_is_allowed($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));
 | |
| 		$arr['diaspora_meta'] = json_encode(crypto_encapsulate(json_encode($x),$key));
 | |
| 	}
 | |
| 
 | |
| 	$x = item_store($arr);
 | |
| 
 | |
| 	if($x)
 | |
| 		$message_id = $x['item_id'];
 | |
| 
 | |
| 	// if the message isn't already being relayed, notify others
 | |
| 	// the existence of parent_author_signature means the parent_author or owner
 | |
| 	// is already relaying. The parent_item['origin'] indicates the message was created on our system
 | |
| 
 | |
| 	if(($parent_item['item_flags'] & 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(($p[0]['item_flags'] & ITEM_ORIGIN) && (! $parent_author_signature)) {
 | |
| // FIXME so we can relay this
 | |
| //						q("insert into sign (`retract_iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
 | |
| //							$r[0]['id'],
 | |
| //							dbesc($signed_data),
 | |
| //							dbesc($sig),
 | |
| //							dbesc($diaspora_handle)
 | |
| //						);
 | |
| 
 | |
| 						// 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'];
 | |
| 
 | |
| 	// TODO: update name on item['author-name'] if the name changed. See consume_feed()
 | |
| 	// Not doing this currently because D* protocol is scheduled for revision soon. 
 | |
| 
 | |
| /*	$r = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s', `avatar-date` = '%s' , `bd` = '%s' WHERE `id` = %d AND `uid` = %d",
 | |
| 		dbesc($name),
 | |
| 		dbesc(datetime_convert()),
 | |
| 		dbesc($images[0]),
 | |
| 		dbesc($images[1]),
 | |
| 		dbesc($images[2]),
 | |
| 		dbesc(datetime_convert()),
 | |
| 		dbesc($birthday),
 | |
| 		intval($contact['id']),
 | |
| 		intval($importer['channel_id'])
 | |
| 	); 
 | |
| */
 | |
| /*	if($r) {
 | |
| 		if($oldphotos) {
 | |
| 			foreach($oldphotos as $ph) {
 | |
| 				q("DELETE FROM `photo` WHERE `uid` = %d AND `contact-id` = %d AND `album` = 'Contact Photos' AND `resource-id` = '%s' ",
 | |
| 					intval($importer['channel_id']),
 | |
| 					intval($contact['id']),
 | |
| 					dbesc($ph['resource-id'])
 | |
| 				);
 | |
| 			}
 | |
| 		}
 | |
| 	}	*/
 | |
| 
 | |
| 	return;
 | |
| 
 | |
| }
 | |
| 
 | |
| function diaspora_share($owner,$contact) {
 | |
| 	$a = get_app();
 | |
| 	$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);
 | |
| 
 | |
| 	$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);
 | |
| 		}
 | |
| 	}
 | |
| */
 | |
| 
 | |
| 
 | |
| 	$public = (($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'] : 'redmatrix')
 | |
| 		));
 | |
| 	} else {
 | |
| 		$tpl = get_markup_template('diaspora_post.tpl');
 | |
| 		$msg = replace_macros($tpl, array(
 | |
| 			'$body' => xmlify($body),
 | |
| 			'$guid' => $item['mid'],
 | |
| 			'$handle' => xmlify($myaddr),
 | |
| 			'$public' => $public,
 | |
| 			'$created' => $created,
 | |
| 			'$provider' => (($item['app']) ? $item['app'] : 'redmatrix')
 | |
| 		));
 | |
| 	}
 | |
| 
 | |
| 	logger('diaspora_send_status: '.$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';
 | |
| 		$positive = 'true';
 | |
| 
 | |
| 		if(($item_['item_restrict'] & 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( $item['item_restrict'] & 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');
 | |
| //		$positive = (($item['item_restrict'] & 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_flags',$item) && ($item['mail_flags'] & MAIL_OBSCURED)) {
 | |
| 		$key = get_config('system','prvkey');
 | |
| //		if($item['title'])
 | |
| //			$item['title'] = crypto_unencapsulate(json_decode_plus($item['title']),$key);
 | |
| 		if($item['body'])
 | |
| 			$item['body'] = crypto_unencapsulate(json_decode_plus($item['body']),$key);
 | |
| 	}
 | |
| 
 | |
| 
 | |
| 	$body = bb2diaspora($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(! $enabled) {
 | |
| 		return 200;
 | |
| 	}
 | |
| 
 | |
| 	if($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);
 | |
| 
 | |
| }
 |