831 lines
		
	
	
	
		
			25 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			831 lines
		
	
	
	
		
			25 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
 | |
| 
 | |
| /*
 | |
|  * Module: dfrn_confirm
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|  * Purpose: Friendship acceptance for DFRN contacts
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|  *
 | |
|  * There are two possible entry points and three scenarios.
 | |
|  *
 | |
|  *   1. A form was submitted by our user approving a friendship that originated elsewhere.
 | |
|  *      This may also be called from dfrn_request to automatically approve a friendship.
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|  *
 | |
|  *   2. We may be the target or other side of the conversation to scenario 1, and will 
 | |
|  *      interact with that process on our own user's behalf.
 | |
|  *   
 | |
|  */
 | |
| 
 | |
| function dfrn_confirm_post(&$a,$handsfree = null) {
 | |
| 
 | |
| 	if(is_array($handsfree)) {
 | |
| 
 | |
| 		/**
 | |
| 		 * We were called directly from dfrn_request due to automatic friend acceptance.
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| 		 * Any $_POST parameters we may require are supplied in the $handsfree array.
 | |
| 		 *
 | |
| 		 */
 | |
| 
 | |
| 		$node = $handsfree['node'];
 | |
| 		$a->interactive = false; // notice() becomes a no-op since nobody is there to see it
 | |
| 
 | |
| 	}
 | |
| 	else {
 | |
| 		if($a->argc > 1)
 | |
| 			$node = $a->argv[1];
 | |
| 	}
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| 
 | |
| 		/**
 | |
| 		 *
 | |
| 		 * Main entry point. Scenario 1. Our user received a friend request notification (perhaps 
 | |
| 		 * from another site) and clicked 'Approve'. 
 | |
| 		 * $POST['source_url'] is not set. If it is, it indicates Scenario 2.
 | |
| 		 *
 | |
| 		 * We may also have been called directly from dfrn_request ($handsfree != null) due to 
 | |
| 		 * this being a page type which supports automatic friend acceptance. That is also Scenario 1
 | |
| 		 * since we are operating on behalf of our registered user to approve a friendship.
 | |
| 		 *
 | |
| 		 */
 | |
| 
 | |
| 	if(! x($_POST,'source_url')) {
 | |
| 
 | |
| 		$uid = ((is_array($handsfree)) ? $handsfree['uid'] : local_user());
 | |
| 
 | |
| 		if(! $uid) {
 | |
| 			notice( t('Permission denied.') . EOL );
 | |
| 			return;
 | |
| 		}	
 | |
| 
 | |
| 		$user = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
 | |
| 			intval($uid)
 | |
| 		);
 | |
| 
 | |
| 		if(! $user) {
 | |
| 			notice( t('Profile not found.') . EOL );
 | |
| 			return;
 | |
| 		}	
 | |
| 
 | |
| 
 | |
| 		// These data elements may come from either the friend request notification form or $handsfree array.
 | |
| 
 | |
| 		if(is_array($handsfree)) {
 | |
| 			logger('dfrn_confirm: Confirm in handsfree mode');
 | |
| 			$dfrn_id   = $handsfree['dfrn_id'];
 | |
| 			$intro_id  = $handsfree['intro_id'];
 | |
| 			$duplex    = $handsfree['duplex'];
 | |
| 			$hidden    = ((array_key_exists('hidden',$handsfree)) ? intval($handsfree['hidden']) : 0 );
 | |
| 			$activity  = ((array_key_exists('activity',$handsfree)) ? intval($handsfree['activity']) : 0 );
 | |
| 		}
 | |
| 		else {
 | |
| 			$dfrn_id  = ((x($_POST,'dfrn_id'))    ? notags(trim($_POST['dfrn_id'])) : "");
 | |
| 			$intro_id = ((x($_POST,'intro_id'))   ? intval($_POST['intro_id'])      : 0 );
 | |
| 			$duplex   = ((x($_POST,'duplex'))     ? intval($_POST['duplex'])        : 0 );
 | |
| 			$cid      = ((x($_POST,'contact_id')) ? intval($_POST['contact_id'])    : 0 );
 | |
| 			$hidden   = ((x($_POST,'hidden'))     ? intval($_POST['hidden'])        : 0 );
 | |
| 			$activity = ((x($_POST,'activity'))   ? intval($_POST['activity'])      : 0 );
 | |
| 		}
 | |
| 
 | |
| 		/**
 | |
| 		 *
 | |
| 		 * Ensure that dfrn_id has precedence when we go to find the contact record.
 | |
| 		 * We only want to search based on contact id if there is no dfrn_id, 
 | |
| 		 * e.g. for OStatus network followers.
 | |
| 		 *
 | |
| 		 */
 | |
| 
 | |
| 		if(strlen($dfrn_id))
 | |
| 			$cid = 0;
 | |
| 
 | |
| 		logger('dfrn_confirm: Confirming request for dfrn_id (issued) ' . $dfrn_id);
 | |
| 		if($cid)
 | |
| 			logger('dfrn_confirm: Confirming follower with contact_id: ' . $cid);
 | |
| 
 | |
| 
 | |
| 		/**
 | |
| 		 *
 | |
| 		 * The other person will have been issued an ID when they first requested friendship.
 | |
| 		 * Locate their record. At this time, their record will have both pending and blocked set to 1. 
 | |
| 		 * There won't be any dfrn_id if this is a network follower, so use the contact_id instead.
 | |
| 		 *
 | |
| 		 */
 | |
| 
 | |
| 		$r = q("SELECT * FROM `contact` WHERE ( ( `issued-id` != '' AND `issued-id` = '%s' ) OR ( `id` = %d AND `id` != 0 ) ) AND `uid` = %d AND `duplex` = 0 LIMIT 1",
 | |
| 			dbesc($dfrn_id),
 | |
| 			intval($cid),
 | |
| 			intval($uid)
 | |
| 		);
 | |
| 
 | |
| 		if(! count($r)) {
 | |
| 			logger('dfrn_confirm: Contact not found in DB.'); 
 | |
| 			notice( t('Contact not found.') . EOL );
 | |
| 			notice( t('This may occasionally happen if contact was requested by both persons and it has already been approved.') . EOL );
 | |
| 			return;
 | |
| 		}
 | |
| 
 | |
| 		$contact = $r[0];
 | |
| 
 | |
| 		$contact_id   = $contact['id'];
 | |
| 		$relation     = $contact['rel'];
 | |
| 		$site_pubkey  = $contact['site-pubkey'];
 | |
| 		$dfrn_confirm = $contact['confirm'];
 | |
| 		$aes_allow    = $contact['aes_allow'];
 | |
| 		
 | |
| 		$network = ((strlen($contact['issued-id'])) ? NETWORK_DFRN : NETWORK_OSTATUS);
 | |
| 
 | |
| 		if($contact['network'])
 | |
| 			$network = $contact['network'];
 | |
| 
 | |
| 		if($network === NETWORK_DFRN) {
 | |
| 
 | |
| 			/**
 | |
| 			 *
 | |
| 			 * Generate a key pair for all further communications with this person.
 | |
| 			 * We have a keypair for every contact, and a site key for unknown people.
 | |
| 			 * This provides a means to carry on relationships with other people if 
 | |
| 			 * any single key is compromised. It is a robust key. We're much more 
 | |
| 			 * worried about key leakage than anybody cracking it.  
 | |
| 			 *
 | |
| 			 */
 | |
| 			require_once('include/crypto.php');
 | |
| 
 | |
| 			$res = new_keypair(4096);
 | |
| 
 | |
| 			$private_key = $res['prvkey'];
 | |
| 			$public_key  = $res['pubkey'];
 | |
| 
 | |
| 			// Save the private key. Send them the public key.
 | |
| 
 | |
| 			$r = q("UPDATE `contact` SET `prvkey` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
 | |
| 				dbesc($private_key),
 | |
| 				intval($contact_id),
 | |
| 				intval($uid) 
 | |
| 			);
 | |
| 
 | |
| 			$params = array();
 | |
| 
 | |
| 			/**
 | |
| 			 *
 | |
| 			 * Per the DFRN protocol, we will verify both ends by encrypting the dfrn_id with our 
 | |
| 			 * site private key (person on the other end can decrypt it with our site public key).
 | |
| 			 * Then encrypt our profile URL with the other person's site public key. They can decrypt
 | |
| 			 * it with their site private key. If the decryption on the other end fails for either
 | |
| 			 * item, it indicates tampering or key failure on at least one site and we will not be 
 | |
| 			 * able to provide a secure communication pathway.
 | |
| 			 *
 | |
| 			 * If other site is willing to accept full encryption, (aes_allow is 1 AND we have php5.3 
 | |
| 			 * or later) then we encrypt the personal public key we send them using AES-256-CBC and a 
 | |
| 			 * random key which is encrypted with their site public key.  
 | |
| 			 *
 | |
| 			 */
 | |
| 
 | |
| 			$src_aes_key = random_string();
 | |
| 
 | |
| 			$result = '';
 | |
| 			openssl_private_encrypt($dfrn_id,$result,$user[0]['prvkey']);
 | |
| 
 | |
| 			$params['dfrn_id'] = bin2hex($result);
 | |
| 			$params['public_key'] = $public_key;
 | |
| 
 | |
| 
 | |
| 			$my_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
 | |
| 
 | |
| 			openssl_public_encrypt($my_url, $params['source_url'], $site_pubkey);
 | |
| 			$params['source_url'] = bin2hex($params['source_url']);
 | |
| 
 | |
| 			if($aes_allow && function_exists('openssl_encrypt')) {
 | |
| 				openssl_public_encrypt($src_aes_key, $params['aes_key'], $site_pubkey);
 | |
| 				$params['aes_key'] = bin2hex($params['aes_key']);
 | |
| 				$params['public_key'] = bin2hex(openssl_encrypt($public_key,'AES-256-CBC',$src_aes_key));
 | |
| 			}
 | |
| 
 | |
| 			$params['dfrn_version'] = DFRN_PROTOCOL_VERSION ;
 | |
| 			if($duplex == 1)
 | |
| 				$params['duplex'] = 1;
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| 
 | |
| 			if($user[0]['page-flags'] == PAGE_COMMUNITY)
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| 				$params['page'] = 1;
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| 			if($user[0]['page-flags'] == PAGE_PRVGROUP)
 | |
| 				$params['page'] = 2;
 | |
| 
 | |
| 			logger('dfrn_confirm: Confirm: posting data to ' . $dfrn_confirm . ': ' . print_r($params,true), LOGGER_DATA);
 | |
| 
 | |
| 			/**
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| 			 *
 | |
| 			 * POST all this stuff to the other site.
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| 			 * Temporarily raise the network timeout to 120 seconds because the default 60
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| 			 * doesn't always give the other side quite enough time to decrypt everything.
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| 			 *
 | |
| 			 */
 | |
| 
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| 			$a->config['system']['curl_timeout'] = 120;
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| 
 | |
| 			$res = post_url($dfrn_confirm,$params);
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| 
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| 			logger('dfrn_confirm: Confirm: received data: ' . $res, LOGGER_DATA);
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| 
 | |
| 			// Now figure out what they responded. Try to be robust if the remote site is 
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| 			// having difficulty and throwing up errors of some kind. 
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| 
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| 			$leading_junk = substr($res,0,strpos($res,'<?xml'));
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| 
 | |
| 			$res = substr($res,strpos($res,'<?xml'));
 | |
| 			if(! strlen($res)) {
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| 
 | |
| 					// No XML at all, this exchange is messed up really bad.
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| 					// We shouldn't proceed, because the xml parser might choke,
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| 					// and $status is going to be zero, which indicates success.
 | |
| 					// We can hardly call this a success.  
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| 	
 | |
| 				notice( t('Response from remote site was not understood.') . EOL);
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| 				return;
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| 			}
 | |
| 
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| 			if(strlen($leading_junk) && get_config('system','debugging')) {
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| 	
 | |
| 					// This might be more common. Mixed error text and some XML.
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| 					// If we're configured for debugging, show the text. Proceed in either case.
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| 
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| 				notice( t('Unexpected response from remote site: ') . EOL . $leading_junk . EOL );
 | |
| 			}
 | |
| 
 | |
| 			$xml = parse_xml_string($res);
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| 			$status = (int) $xml->status;
 | |
| 			$message = unxmlify($xml->message);   // human readable text of what may have gone wrong.
 | |
| 			switch($status) {
 | |
| 				case 0:
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| 					info( t("Confirmation completed successfully.") . EOL);
 | |
| 					if(strlen($message))
 | |
| 						notice( t('Remote site reported: ') . $message . EOL);
 | |
| 					break;
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| 				case 1:
 | |
| 					// birthday paradox - generate new dfrn-id and fall through.
 | |
| 					$new_dfrn_id = random_string();
 | |
| 					$r = q("UPDATE contact SET `issued-id` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
 | |
| 						dbesc($new_dfrn_id),
 | |
| 						intval($contact_id),
 | |
| 						intval($uid) 
 | |
| 					);
 | |
| 
 | |
| 				case 2:
 | |
| 					notice( t("Temporary failure. Please wait and try again.") . EOL);
 | |
| 					if(strlen($message))
 | |
| 						notice( t('Remote site reported: ') . $message . EOL);
 | |
| 					break;
 | |
| 
 | |
| 
 | |
| 				case 3:
 | |
| 					notice( t("Introduction failed or was revoked.") . EOL);
 | |
| 					if(strlen($message))
 | |
| 						notice( t('Remote site reported: ') . $message . EOL);
 | |
| 					break;
 | |
| 				}
 | |
| 
 | |
| 			if(($status == 0) && ($intro_id)) {
 | |
| 	
 | |
| 				// Success. Delete the notification.
 | |
| 	
 | |
| 				$r = q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 | |
| 					intval($intro_id),
 | |
| 					intval($uid)
 | |
| 				);
 | |
| 				
 | |
| 			}
 | |
| 
 | |
| 			if($status != 0) 
 | |
| 				return;
 | |
| 		}
 | |
| 
 | |
| 
 | |
| 		/*
 | |
| 		 *
 | |
| 		 * We have now established a relationship with the other site.
 | |
| 		 * Let's make our own personal copy of their profile photo so we don't have
 | |
| 		 * to always load it from their site.
 | |
| 		 *
 | |
| 		 * We will also update the contact record with the nature and scope of the relationship.
 | |
| 		 *
 | |
| 		 */
 | |
| 
 | |
| 		require_once('include/Photo.php');
 | |
| 
 | |
| 		$photos = import_profile_photo($contact['photo'],$uid,$contact_id);
 | |
| 		
 | |
| 		logger('dfrn_confirm: confirm - imported photos');
 | |
| 
 | |
| 		if($network === NETWORK_DFRN) {
 | |
| 
 | |
| 			$new_relation = CONTACT_IS_FOLLOWER;
 | |
| 			if(($relation == CONTACT_IS_SHARING) || ($duplex))
 | |
| 				$new_relation = CONTACT_IS_FRIEND;
 | |
| 
 | |
| 			if(($relation == CONTACT_IS_SHARING) && ($duplex))
 | |
| 				$duplex = 0;
 | |
| 
 | |
| 			$r = q("UPDATE `contact` SET 
 | |
| 				`photo` = '%s', 
 | |
| 				`thumb` = '%s',
 | |
| 				`micro` = '%s', 
 | |
| 				`rel` = %d, 
 | |
| 				`name-date` = '%s', 
 | |
| 				`uri-date` = '%s', 
 | |
| 				`avatar-date` = '%s', 
 | |
| 				`blocked` = 0, 
 | |
| 				`pending` = 0,
 | |
| 				`duplex` = %d,
 | |
| 				`hidden` = %d,
 | |
| 				`network` = 'dfrn' WHERE `id` = %d LIMIT 1
 | |
| 			",
 | |
| 				dbesc($photos[0]),
 | |
| 				dbesc($photos[1]),
 | |
| 				dbesc($photos[2]),
 | |
| 				intval($new_relation),
 | |
| 				dbesc(datetime_convert()),
 | |
| 				dbesc(datetime_convert()),
 | |
| 				dbesc(datetime_convert()),
 | |
| 				intval($duplex),
 | |
| 				intval($hidden),
 | |
| 				intval($contact_id)
 | |
| 			);
 | |
| 		}
 | |
| 		else {  
 | |
| 
 | |
| 			// $network !== NETWORK_DFRN
 | |
| 
 | |
| 			$network = (($contact['network']) ? $contact['network'] : NETWORK_OSTATUS);
 | |
| 			$notify = (($contact['notify']) ? $contact['notify'] : '');
 | |
| 			$poll   = (($contact['poll']) ? $contact['poll'] : '');
 | |
| 
 | |
| 			if((! $contact['notify']) || (! $contact['poll'])) {
 | |
| 				$arr = lrdd($contact['url']);
 | |
| 				if(count($arr)) {
 | |
| 					foreach($arr as $link) {
 | |
| 						if($link['@attributes']['rel'] === 'salmon')
 | |
| 							$notify = $link['@attributes']['href'];
 | |
| 						if($link['@attributes']['rel'] === NAMESPACE_FEED)
 | |
| 							$poll = $link['@attributes']['href'];
 | |
| 					}
 | |
| 				}
 | |
| 			}
 | |
| 
 | |
| 			$new_relation = $contact['rel'];
 | |
| 			$writable = $contact['writable'];
 | |
| 
 | |
| 			if($network === NETWORK_DIASPORA) {
 | |
| 				if($duplex)
 | |
| 					$new_relation = CONTACT_IS_FRIEND;
 | |
| 				else
 | |
| 					$new_relation = CONTACT_IS_SHARING;
 | |
| 
 | |
| 				if($new_relation != CONTACT_IS_FOLLOWER)
 | |
| 					$writable = 1;
 | |
| 			}
 | |
| 
 | |
| 			$r = q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 | |
| 				intval($intro_id),
 | |
| 				intval($uid)
 | |
| 			);
 | |
| 
 | |
| 
 | |
| 			$r = q("UPDATE `contact` SET `photo` = '%s', 
 | |
| 				`thumb` = '%s',
 | |
| 				`micro` = '%s', 
 | |
| 				`name-date` = '%s', 
 | |
| 				`uri-date` = '%s', 
 | |
| 				`avatar-date` = '%s', 
 | |
| 				`notify` = '%s',
 | |
| 				`poll` = '%s',
 | |
| 				`blocked` = 0, 
 | |
| 				`pending` = 0,
 | |
| 				`network` = '%s',
 | |
| 				`writable` = %d,
 | |
| 				`hidden` = %d,
 | |
| 				`rel` = %d
 | |
| 				WHERE `id` = %d LIMIT 1
 | |
| 			",
 | |
| 				dbesc($photos[0]),
 | |
| 				dbesc($photos[1]),
 | |
| 				dbesc($photos[2]),
 | |
| 				dbesc(datetime_convert()),
 | |
| 				dbesc(datetime_convert()),
 | |
| 				dbesc(datetime_convert()),
 | |
| 				dbesc($notify),
 | |
| 				dbesc($poll),
 | |
| 				dbesc($network),
 | |
| 				intval($writable),
 | |
| 				intval($hidden),
 | |
| 				intval($new_relation),
 | |
| 				intval($contact_id)
 | |
| 			);			
 | |
| 		}
 | |
| 
 | |
| 		if($r === false)
 | |
| 				notice( t('Unable to set contact photo.') . EOL);
 | |
| 
 | |
| 		// reload contact info
 | |
| 
 | |
| 		$r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
 | |
| 			intval($contact_id)
 | |
| 		);
 | |
| 		if(count($r))
 | |
| 			$contact = $r[0];
 | |
| 		else
 | |
| 			$contact = null;
 | |
| 
 | |
| 
 | |
| 		if((isset($new_relation) && $new_relation == CONTACT_IS_FRIEND)) {
 | |
| 
 | |
| 			if(($contact) && ($contact['network'] === NETWORK_DIASPORA)) {
 | |
| 				require_once('include/diaspora.php');
 | |
| 				$ret = diaspora_share($user[0],$r[0]);
 | |
| 				logger('mod_follow: diaspora_share returns: ' . $ret);
 | |
| 			}
 | |
| 
 | |
| 			// Send a new friend post if we are allowed to...
 | |
| 
 | |
| 			$r = q("SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
 | |
| 				intval($uid)
 | |
| 			);
 | |
| 
 | |
| 			if((count($r)) && ($r[0]['hide-friends'] == 0) && ($activity) && (! $hidden)) {
 | |
| 
 | |
| 				require_once('include/items.php');
 | |
| 
 | |
| 				$self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
 | |
| 					intval($uid)
 | |
| 				);
 | |
| 
 | |
| 				if(count($self)) {
 | |
| 
 | |
| 					$arr = array();
 | |
| 					$arr['uri'] = $arr['parent-uri'] = item_new_uri($a->get_hostname(), $uid); 
 | |
| 					$arr['uid'] = $uid;
 | |
| 					$arr['contact-id'] = $self[0]['id'];
 | |
| 					$arr['wall'] = 1;
 | |
| 					$arr['type'] = 'wall';
 | |
| 					$arr['gravity'] = 0;
 | |
| 					$arr['origin'] = 1;
 | |
| 					$arr['author-name'] = $arr['owner-name'] = $self[0]['name'];
 | |
| 					$arr['author-link'] = $arr['owner-link'] = $self[0]['url'];
 | |
| 					$arr['author-avatar'] = $arr['owner-avatar'] = $self[0]['thumb'];
 | |
| 
 | |
| 					$A = '[url=' . $self[0]['url'] . ']' . $self[0]['name'] . '[/url]';
 | |
| 					$APhoto = '[url=' . $self[0]['url'] . ']' . '[img]' . $self[0]['thumb'] . '[/img][/url]';
 | |
| 
 | |
| 					$B = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
 | |
| 					$BPhoto = '[url=' . $contact['url'] . ']' . '[img]' . $contact['thumb'] . '[/img][/url]';
 | |
| 
 | |
| 					$arr['verb'] = ACTIVITY_FRIEND;
 | |
| 				    $arr['object-type'] = ACTIVITY_OBJ_PERSON;
 | |
| 					$arr['body'] =  sprintf( t('%1$s is now friends with %2$s'), $A, $B)."\n\n\n".$BPhoto;
 | |
| 
 | |
| 					$arr['object'] = '<object><type>' . ACTIVITY_OBJ_PERSON . '</type><title>' . $contact['name'] . '</title>'
 | |
| 						. '<id>' . $contact['url'] . '/' . $contact['name'] . '</id>';
 | |
| 					$arr['object'] .= '<link>' . xmlify('<link rel="alternate" type="text/html" href="' . $contact['url'] . '" />' . "\n");
 | |
| 					$arr['object'] .= xmlify('<link rel="photo" type="image/jpeg" href="' . $contact['thumb'] . '" />' . "\n");
 | |
| 					$arr['object'] .= '</link></object>' . "\n";
 | |
| 
 | |
| 					$arr['last-child'] = 1;
 | |
| 
 | |
| 					$arr['allow_cid'] = $user[0]['allow_cid'];
 | |
| 					$arr['allow_gid'] = $user[0]['allow_gid'];
 | |
| 					$arr['deny_cid']  = $user[0]['deny_cid'];
 | |
| 					$arr['deny_gid']  = $user[0]['deny_gid'];
 | |
| 
 | |
| 					$i = item_store($arr);
 | |
| 					if($i)
 | |
| 				    	proc_run('php',"include/notifier.php","activity","$i");
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 
 | |
| 		$g = q("select def_gid from user where uid = %d limit 1",
 | |
| 			intval($uid)
 | |
| 		);
 | |
| 		if($contact && $g && intval($g[0]['def_gid'])) {
 | |
| 			require_once('include/group.php');
 | |
| 			group_add_member($uid,'',$contact['id'],$g[0]['def_gid']);
 | |
| 		}
 | |
| 
 | |
| 		// Let's send our user to the contact editor in case they want to
 | |
| 		// do anything special with this new friend.
 | |
| 
 | |
| 		if($handsfree === null)
 | |
| 			goaway($a->get_baseurl() . '/contacts/' . intval($contact_id));
 | |
| 		else
 | |
| 			return;  
 | |
| 		//NOTREACHED
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 *
 | |
| 	 *
 | |
| 	 * End of Scenario 1. [Local confirmation of remote friend request].
 | |
| 	 *
 | |
| 	 * Begin Scenario 2. This is the remote response to the above scenario.
 | |
| 	 * This will take place on the site that originally initiated the friend request.
 | |
| 	 * In the section above where the confirming party makes a POST and 
 | |
| 	 * retrieves xml status information, they are communicating with the following code.
 | |
| 	 *
 | |
| 	 */
 | |
| 
 | |
| 	if(x($_POST,'source_url')) {
 | |
| 
 | |
| 		// We are processing an external confirmation to an introduction created by our user.
 | |
| 
 | |
| 		$public_key = ((x($_POST,'public_key'))   ? $_POST['public_key']           : '');
 | |
| 		$dfrn_id    = ((x($_POST,'dfrn_id'))      ? hex2bin($_POST['dfrn_id'])     : '');
 | |
| 		$source_url = ((x($_POST,'source_url'))   ? hex2bin($_POST['source_url'])  : '');
 | |
| 		$aes_key    = ((x($_POST,'aes_key'))      ? $_POST['aes_key']              : '');
 | |
| 		$duplex     = ((x($_POST,'duplex'))       ? intval($_POST['duplex'])       : 0 );
 | |
| 		$page       = ((x($_POST,'page'))         ? intval($_POST['page'])         : 0 );
 | |
| 		$version_id = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version'] : 2.0);
 | |
| 	
 | |
| 		$forum = (($page == 1) ? 1 : 0);
 | |
| 		$prv   = (($page == 2) ? 1 : 0);
 | |
| 
 | |
| 		logger('dfrn_confirm: requestee contacted: ' . $node);
 | |
| 
 | |
| 		logger('dfrn_confirm: request: POST=' . print_r($_POST,true), LOGGER_DATA);
 | |
| 
 | |
| 		// If $aes_key is set, both of these items require unpacking from the hex transport encoding.
 | |
| 
 | |
| 		if(x($aes_key)) {
 | |
| 			$aes_key = hex2bin($aes_key);
 | |
| 			$public_key = hex2bin($public_key);
 | |
| 		}
 | |
| 
 | |
| 		// Find our user's account
 | |
| 
 | |
| 		$r = q("SELECT * FROM `user` WHERE `nickname` = '%s' LIMIT 1",
 | |
| 			dbesc($node));
 | |
| 
 | |
| 		if(! count($r)) {
 | |
| 			$message = sprintf(t('No user record found for \'%s\' '), $node);
 | |
| 			xml_status(3,$message); // failure
 | |
| 			// NOTREACHED
 | |
| 		}
 | |
| 
 | |
| 		$my_prvkey = $r[0]['prvkey'];
 | |
| 		$local_uid = $r[0]['uid'];
 | |
| 
 | |
| 
 | |
| 		if(! strstr($my_prvkey,'PRIVATE KEY')) {
 | |
| 			$message = t('Our site encryption key is apparently messed up.');
 | |
| 			xml_status(3,$message);
 | |
| 		}
 | |
| 
 | |
| 		// verify everything
 | |
| 
 | |
| 		$decrypted_source_url = "";
 | |
| 		openssl_private_decrypt($source_url,$decrypted_source_url,$my_prvkey);
 | |
| 
 | |
| 
 | |
| 		if(! strlen($decrypted_source_url)) {
 | |
| 			$message = t('Empty site URL was provided or URL could not be decrypted by us.');
 | |
| 			xml_status(3,$message);
 | |
| 			// NOTREACHED
 | |
| 		}
 | |
| 
 | |
| 		$ret = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
 | |
| 			dbesc($decrypted_source_url),
 | |
| 			intval($local_uid)
 | |
| 		);
 | |
| 		if(! count($ret)) {
 | |
| 			if(strstr($decrypted_source_url,'http:'))
 | |
| 				$newurl = str_replace('http:','https:',$decrypted_source_url);
 | |
| 			else
 | |
| 				$newurl = str_replace('https:','http:',$decrypted_source_url);
 | |
| 
 | |
| 			$ret = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
 | |
| 				dbesc($newurl),
 | |
| 				intval($local_uid)
 | |
| 			);
 | |
| 			if(! count($ret)) {
 | |
| 				// this is either a bogus confirmation (?) or we deleted the original introduction.
 | |
| 				$message = t('Contact record was not found for you on our site.');
 | |
| 				xml_status(3,$message);
 | |
| 				return; // NOTREACHED 
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		$relation = $ret[0]['rel'];
 | |
| 
 | |
| 		// Decrypt all this stuff we just received
 | |
| 
 | |
| 		$foreign_pubkey = $ret[0]['site-pubkey'];
 | |
| 		$dfrn_record    = $ret[0]['id'];
 | |
| 
 | |
| 		if(! $foreign_pubkey) {
 | |
| 			$message = sprintf( t('Site public key not available in contact record for URL %s.'), $newurl);
 | |
| 			xml_status(3,$message);
 | |
| 		}
 | |
| 
 | |
| 		$decrypted_dfrn_id = "";
 | |
| 		openssl_public_decrypt($dfrn_id,$decrypted_dfrn_id,$foreign_pubkey);
 | |
| 
 | |
| 		if(strlen($aes_key)) {
 | |
| 			$decrypted_aes_key = "";
 | |
| 			openssl_private_decrypt($aes_key,$decrypted_aes_key,$my_prvkey);
 | |
| 			$dfrn_pubkey = openssl_decrypt($public_key,'AES-256-CBC',$decrypted_aes_key);
 | |
| 		}
 | |
| 		else {
 | |
| 			$dfrn_pubkey = $public_key;
 | |
| 		}
 | |
| 
 | |
| 		$r = q("SELECT * FROM `contact` WHERE `dfrn-id` = '%s' LIMIT 1",
 | |
| 			dbesc($decrypted_dfrn_id)
 | |
| 		);
 | |
| 		if(count($r)) {
 | |
| 			$message = t('The ID provided by your system is a duplicate on our system. It should work if you try again.');
 | |
| 			xml_status(1,$message); // Birthday paradox - duplicate dfrn-id
 | |
| 			// NOTREACHED
 | |
| 		}
 | |
| 
 | |
| 		$r = q("UPDATE `contact` SET `dfrn-id` = '%s', `pubkey` = '%s' WHERE `id` = %d LIMIT 1",
 | |
| 			dbesc($decrypted_dfrn_id),
 | |
| 			dbesc($dfrn_pubkey),
 | |
| 			intval($dfrn_record)
 | |
| 		);
 | |
| 		if(! count($r)) {
 | |
| 			$message = t('Unable to set your contact credentials on our system.');
 | |
| 			xml_status(3,$message);
 | |
| 		}
 | |
| 
 | |
| 		// It's possible that the other person also requested friendship.
 | |
| 		// If it is a duplex relationship, ditch the issued-id if one exists. 
 | |
| 
 | |
| 		if($duplex) {
 | |
| 			$r = q("UPDATE `contact` SET `issued-id` = '' WHERE `id` = %d LIMIT 1",
 | |
| 				intval($dfrn_record)
 | |
| 			);
 | |
| 		}
 | |
| 
 | |
| 		// We're good but now we have to scrape the profile photo and send notifications.
 | |
| 
 | |
| 
 | |
| 
 | |
| 		$r = q("SELECT `photo` FROM `contact` WHERE `id` = %d LIMIT 1",
 | |
| 			intval($dfrn_record));
 | |
| 
 | |
| 		if(count($r))
 | |
| 			$photo = $r[0]['photo'];
 | |
| 		else
 | |
| 			$photo = $a->get_baseurl() . '/images/person-175.jpg';
 | |
| 				
 | |
| 		require_once("Photo.php");
 | |
| 
 | |
| 		$photos = import_profile_photo($photo,$local_uid,$dfrn_record);
 | |
| 
 | |
| 		logger('dfrn_confirm: request - photos imported');
 | |
| 
 | |
| 		$new_relation = CONTACT_IS_SHARING;
 | |
| 		if(($relation == CONTACT_IS_FOLLOWER) || ($duplex))
 | |
| 			$new_relation = CONTACT_IS_FRIEND;
 | |
| 
 | |
| 		if(($relation == CONTACT_IS_FOLLOWER) && ($duplex))
 | |
| 			$duplex = 0;
 | |
| 
 | |
| 		$r = q("UPDATE `contact` SET 
 | |
| 			`photo` = '%s', 
 | |
| 			`thumb` = '%s', 
 | |
| 			`micro` = '%s',
 | |
| 			`rel` = %d, 
 | |
| 			`name-date` = '%s', 
 | |
| 			`uri-date` = '%s', 
 | |
| 			`avatar-date` = '%s', 
 | |
| 			`blocked` = 0, 
 | |
| 			`pending` = 0,
 | |
| 			`duplex` = %d, 
 | |
| 			`forum` = %d,
 | |
| 			`prv` = %d,
 | |
| 			`network` = '%s' WHERE `id` = %d LIMIT 1
 | |
| 		",
 | |
| 			dbesc($photos[0]),
 | |
| 			dbesc($photos[1]),
 | |
| 			dbesc($photos[2]),
 | |
| 			intval($new_relation),
 | |
| 			dbesc(datetime_convert()),
 | |
| 			dbesc(datetime_convert()),
 | |
| 			dbesc(datetime_convert()),
 | |
| 			intval($duplex),
 | |
| 			intval($forum),
 | |
| 			intval($prv),
 | |
| 			dbesc(NETWORK_DFRN),
 | |
| 			intval($dfrn_record)
 | |
| 		);
 | |
| 		if($r === false) {    // indicates schema is messed up or total db failure
 | |
| 			$message = t('Unable to update your contact profile details on our system');
 | |
| 			xml_status(3,$message);
 | |
| 		}
 | |
| 
 | |
| 		// Otherwise everything seems to have worked and we are almost done. Yay!
 | |
| 		// Send an email notification
 | |
| 
 | |
| 		logger('dfrn_confirm: request: info updated');
 | |
| 
 | |
| 		$r = q("SELECT `contact`.*, `user`.* FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
 | |
| 			WHERE `contact`.`id` = %d LIMIT 1",
 | |
| 			intval($dfrn_record)
 | |
| 		);
 | |
| 
 | |
| 		if(count($r))
 | |
| 			$combined = $r[0];
 | |
| 
 | |
| 		if((count($r)) && ($r[0]['notify-flags'] & NOTIFY_CONFIRM)) {
 | |
| 
 | |
| 			push_lang($r[0]['language']);
 | |
| 			$tpl = (($new_relation == CONTACT_IS_FRIEND) 
 | |
| 				? get_intltext_template('friend_complete_eml.tpl')
 | |
| 				: get_intltext_template('intro_complete_eml.tpl'));
 | |
| 		
 | |
| 			$email_tpl = replace_macros($tpl, array(
 | |
| 				'$sitename' => $a->config['sitename'],
 | |
| 				'$siteurl' =>  $a->get_baseurl(),
 | |
| 				'$username' => $r[0]['username'],
 | |
| 				'$email' => $r[0]['email'],
 | |
| 				'$fn' => $r[0]['name'],
 | |
| 				'$dfrn_url' => $r[0]['url'],
 | |
| 				'$uid' => $newuid )
 | |
| 			);
 | |
| 	
 | |
| 			$res = mail($r[0]['email'], sprintf( t("Connection accepted at %s") , $a->config['sitename']),
 | |
| 				$email_tpl,
 | |
| 				'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
 | |
| 				. 'Content-type: text/plain; charset=UTF-8' . "\n"
 | |
| 				. 'Content-transfer-encoding: 8bit' );
 | |
| 
 | |
| 			if(!$res) {
 | |
| 				// pointless throwing an error here and confusing the person at the other end of the wire.
 | |
| 			}
 | |
| 			pop_lang();
 | |
| 		}
 | |
| 
 | |
| 		// Send a new friend post if we are allowed to...
 | |
| 
 | |
| 		if($page && intval(get_pconfig($local_uid,'system','post_joingroup'))) {
 | |
| 			$r = q("SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
 | |
| 				intval($local_uid)
 | |
| 			);
 | |
| 
 | |
| 			if((count($r)) && ($r[0]['hide-friends'] == 0)) {
 | |
| 
 | |
| 				require_once('include/items.php');
 | |
| 
 | |
| 				$self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
 | |
| 					intval($local_uid)
 | |
| 				);
 | |
| 
 | |
| 				if(count($self)) {
 | |
| 
 | |
| 					$arr = array();
 | |
| 					$arr['uri'] = $arr['parent-uri'] = item_new_uri($a->get_hostname(), $local_uid); 
 | |
| 					$arr['uid'] = $local_uid;
 | |
| 					$arr['contact-id'] = $self[0]['id'];
 | |
| 					$arr['wall'] = 1;
 | |
| 					$arr['type'] = 'wall';
 | |
| 					$arr['gravity'] = 0;
 | |
| 					$arr['origin'] = 1;
 | |
| 					$arr['author-name'] = $arr['owner-name'] = $self[0]['name'];
 | |
| 					$arr['author-link'] = $arr['owner-link'] = $self[0]['url'];
 | |
| 					$arr['author-avatar'] = $arr['owner-avatar'] = $self[0]['thumb'];
 | |
| 
 | |
| 					$A = '[url=' . $self[0]['url'] . ']' . $self[0]['name'] . '[/url]';
 | |
| 					$APhoto = '[url=' . $self[0]['url'] . ']' . '[img]' . $self[0]['thumb'] . '[/img][/url]';
 | |
| 
 | |
| 					$B = '[url=' . $combined['url'] . ']' . $combined['name'] . '[/url]';
 | |
| 					$BPhoto = '[url=' . $combined['url'] . ']' . '[img]' . $combined['thumb'] . '[/img][/url]';
 | |
| 
 | |
| 					$arr['verb'] = ACTIVITY_JOIN;
 | |
| 					$arr['object-type'] = ACTIVITY_OBJ_GROUP;
 | |
| 					$arr['body'] =  sprintf( t('%1$s has joined %2$s'), $A, $B)."\n\n\n" .$BPhoto;
 | |
| 					$arr['object'] = '<object><type>' . ACTIVITY_OBJ_GROUP . '</type><title>' . $combined['name'] . '</title>'
 | |
| 						. '<id>' . $combined['url'] . '/' . $combined['name'] . '</id>';
 | |
| 					$arr['object'] .= '<link>' . xmlify('<link rel="alternate" type="text/html" href="' . $combined['url'] . '" />' . "\n");
 | |
| 					$arr['object'] .= xmlify('<link rel="photo" type="image/jpeg" href="' . $combined['thumb'] . '" />' . "\n");
 | |
| 					$arr['object'] .= '</link></object>' . "\n";
 | |
| 
 | |
| 					$arr['last-child'] = 1;
 | |
| 
 | |
| 					$arr['allow_cid'] = $user[0]['allow_cid'];
 | |
| 					$arr['allow_gid'] = $user[0]['allow_gid'];
 | |
| 					$arr['deny_cid']  = $user[0]['deny_cid'];
 | |
| 					$arr['deny_gid']  = $user[0]['deny_gid'];
 | |
| 
 | |
| 					$i = item_store($arr);
 | |
| 					if($i)
 | |
| 				    	proc_run('php',"include/notifier.php","activity","$i");
 | |
| 
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 		xml_status(0); // Success
 | |
| 		return; // NOTREACHED
 | |
| 
 | |
| 			////////////////////// End of this scenario ///////////////////////////////////////////////
 | |
| 	}
 | |
| 
 | |
| 	// somebody arrived here by mistake or they are fishing. Send them to the homepage.
 | |
| 
 | |
| 	goaway(z_root());
 | |
| 	// NOTREACHED
 | |
| 
 | |
| }
 |