removing dfrn stuff

4 files changed, 0 insertions, 2493 deletions

diff --git a/mod/dfrn_confirm.php b/mod/dfrn_confirm.php
deleted file mode 100644
index c91b05a48..000000000
--- a/mod/dfrn_confirm.php
+++ /dev/null
@@ -1,813 +0,0 @@
-<?php
-
-/*
- * Module: dfrn_confirm
- * Purpose: Friendship acceptance for DFRN contacts
- *
- * 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.
- *
- *   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.
-		 * 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];
-	}
-
-		/**
-		 *
-		 * 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)
-				$params['duplex'] = 1;
-
-			if($user[0]['page-flags'] == PAGE_COMMUNITY)
-				$params['page'] = 1;
-			if($user[0]['page-flags'] == PAGE_PRVGROUP)
-				$params['page'] = 2;
-
-			logger('dfrn_confirm: Confirm: posting data to ' . $dfrn_confirm . ': ' . print_r($params,true), LOGGER_DATA);
-
-			/**
-			 *
-			 * POST all this stuff to the other site.
-			 * Temporarily raise the network timeout to 120 seconds because the default 60
-			 * doesn't always give the other side quite enough time to decrypt everything.
-			 *
-			 */
-
-			$a->config['system']['curl_timeout'] = 120;
-
-			$res = post_url($dfrn_confirm,$params);
-
-			logger('dfrn_confirm: Confirm: received data: ' . $res, LOGGER_DATA);
-
-			// Now figure out what they responded. Try to be robust if the remote site is 
-			// having difficulty and throwing up errors of some kind. 
-
-			$leading_junk = substr($res,0,strpos($res,'<?xml'));
-
-			$res = substr($res,strpos($res,'<?xml'));
-			if(! strlen($res)) {
-
-					// No XML at all, this exchange is messed up really bad.
-					// We shouldn't proceed, because the xml parser might choke,
-					// and $status is going to be zero, which indicates success.
-					// We can hardly call this a success.  
-	
-				notice( t('Response from remote site was not understood.') . EOL);
-				return;
-			}
-
-			if(strlen($leading_junk) && get_config('system','debugging')) {
-	
-					// This might be more common. Mixed error text and some XML.
-					// If we're configured for debugging, show the text. Proceed in either case.
-
-				notice( t('Unexpected response from remote site: ') . EOL . $leading_junk . EOL );
-			}
-
-			$xml = parse_xml_string($res);
-			$status = (int) $xml->status;
-			$message = unxmlify($xml->message);   // human readable text of what may have gone wrong.
-			switch($status) {
-				case 0:
-					info( t("Confirmation completed successfully.") . EOL);
-					if(strlen($message))
-						notice( t('Remote site reported: ') . $message . EOL);
-					break;
-				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'];
-
-			$r = q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d LIMIT 1",
-				intval($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)) {
-
-			// 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_message_id();
-					$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['obj_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['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_message_id();
-					$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['obj_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['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
-
-}
diff --git a/mod/dfrn_notify.php b/mod/dfrn_notify.php
deleted file mode 100644
index 94eb3a297..000000000
--- a/mod/dfrn_notify.php
+++ /dev/null
@@ -1,281 +0,0 @@
-<?php
-
-require_once('library/simplepie/simplepie.inc');
-require_once('include/items.php');
-require_once('include/event.php');
-
-
-function dfrn_notify_post(&$a) {
-
-	$dfrn_id      = ((x($_POST,'dfrn_id'))      ? notags(trim($_POST['dfrn_id']))   : '');
-	$dfrn_version = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version']    : 2.0);
-	$challenge    = ((x($_POST,'challenge'))    ? notags(trim($_POST['challenge'])) : '');
-	$data         = ((x($_POST,'data'))         ? $_POST['data']                    : '');
-	$key          = ((x($_POST,'key'))          ? $_POST['key']                     : '');
-	$dissolve     = ((x($_POST,'dissolve'))     ? intval($_POST['dissolve'])        :  0);
-	$perm         = ((x($_POST,'perm'))         ? notags(trim($_POST['perm']))      : 'r');
-	$ssl_policy   = ((x($_POST,'ssl_policy'))   ? notags(trim($_POST['ssl_policy'])): 'none');
-	$page         = ((x($_POST,'page'))         ? intval($_POST['page'])            :  0);
-
-	$forum = (($page == 1) ? 1 : 0);
-	$prv   = (($page == 2) ? 1 : 0);
-
-	$writable = (-1);
-	if($dfrn_version >= 2.21) {
-		$writable = (($perm === 'rw') ? 1 : 0);
-	}
-
-	$direction = (-1);
-	if(strpos($dfrn_id,':') == 1) {
-		$direction = intval(substr($dfrn_id,0,1));
-		$dfrn_id = substr($dfrn_id,2);
-	}
-
-	$r = q("SELECT * FROM `challenge` WHERE `dfrn_id` = '%s' AND `challenge` = '%s' LIMIT 1",
-		dbesc($dfrn_id),
-		dbesc($challenge)
-	);
-	if(! count($r)) {
-		logger('dfrn_notify: could not match challenge to dfrn_id ' . $dfrn_id . ' challenge=' . $challenge);
-		xml_status(3);
-	}
-
-	$r = q("DELETE FROM `challenge` WHERE `dfrn_id` = '%s' AND `challenge` = '%s' LIMIT 1",
-		dbesc($dfrn_id),
-		dbesc($challenge)
-	);
-
-	// find the local user who owns this relationship.
-
-	$sql_extra = '';
-	switch($direction) {
-		case (-1):
-			$sql_extra = sprintf(" AND ( `issued_id` = '%s' OR `dfrn_id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
-			break;
-		case 0:
-			$sql_extra = sprintf(" AND `issued_id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
-			break;
-		case 1:
-			$sql_extra = sprintf(" AND `dfrn_id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
-			break;
-		default:
-			xml_status(3);
-			break; // NOTREACHED
-	}
-		 
-	// be careful - $importer will contain both the contact information for the contact
-	// sending us the post, and also the user information for the person receiving it.
-	// since they are mixed together, it is easy to get them confused.
-
-	$r = q("SELECT	`contact`.*, `contact`.`uid` AS `importer_uid`, 
-					`contact`.`pubkey` AS `cpubkey`, 
-					`contact`.`prvkey` AS `cprvkey`, 
-					`contact`.`thumb` AS `thumb`, 
-					`contact`.`url` as `url`,
-					`contact`.`name` as `senderName`,
-					`user`.* 
-			FROM `contact` 
-			LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid` 
-			WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 
-				AND `user`.`nickname` = '%s' AND `user`.`account_expired` = 0 $sql_extra LIMIT 1",
-		dbesc($a->argv[1])
-	);
-
-	if(! count($r)) {
-		logger('dfrn_notify: contact not found for dfrn_id ' . $dfrn_id);
-		xml_status(3);
-		//NOTREACHED
-	}
-
-	// $importer in this case contains the contact record for the remote contact joined with the user record of our user. 
-
-	$importer = $r[0];
-
-	if((($writable != (-1)) && ($writable != $importer['writable'])) || ($importer['forum'] != $forum) || ($importer['prv'] != $prv)) {
-		q("UPDATE `contact` SET `writable` = %d, forum = %d, prv = %d WHERE `id` = %d LIMIT 1",
-			intval(($writable == (-1)) ? $importer['writable'] : $writable),
-			intval($forum),
-			intval($prv),
-			intval($importer['id'])
-		);
-		if($writable != (-1))
-			$importer['writable'] = $writable;
-		$importer['forum'] = $page;
-	}
-
-
-	// if contact's ssl policy changed, update our links
-
-	fix_contact_ssl_policy($importer,$ssl_policy);
-
-	logger('dfrn_notify: received notify from ' . $importer['name'] . ' for ' . $importer['username']);
-	logger('dfrn_notify: data: ' . $data, LOGGER_DATA);
-
-	if($dissolve == 1) {
-
-		/**
-		 * Relationship is dissolved permanently
-		 */
-
-		require_once('include/Contact.php'); 
-		contact_remove($importer['id']);
-		logger('relationship dissolved : ' . $importer['name'] . ' dissolved ' . $importer['username']);
-		xml_status(0);
-
-	}
-
-
-	// If we are setup as a soapbox we aren't accepting input from this person
-
-	if($importer['page-flags'] == PAGE_SOAPBOX)
-		xml_status(0);
-
-
-	if(strlen($key)) {
-		$rawkey = hex2bin(trim($key));
-		logger('rino: md5 raw key: ' . md5($rawkey));
-		$final_key = '';
-
-		if($dfrn_version >= 2.1) {
-			if((($importer['duplex']) && strlen($importer['cprvkey'])) || (! strlen($importer['cpubkey']))) {
-				openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
-			}
-			else {
-				openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
-			}
-		}
-		else {
-			if((($importer['duplex']) && strlen($importer['cpubkey'])) || (! strlen($importer['cprvkey']))) {
-				openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
-			}
-			else {
-				openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
-			}
-		}
-
-		logger('rino: received key : ' . $final_key);
-		$data = aes_decrypt(hex2bin($data),$final_key);
-		logger('rino: decrypted data: ' . $data, LOGGER_DATA);
-	}
-
-
-	$ret = local_delivery($importer,$data);
-	xml_status($ret);
-
-	// NOTREACHED
-}
-
-
-function dfrn_notify_content(&$a) {
-
-	if(x($_GET,'dfrn_id')) {
-
-		// initial communication from external contact, $direction is their direction.
-		// If this is a duplex communication, ours will be the opposite.
-
-		$dfrn_id = notags(trim($_GET['dfrn_id']));
-		$dfrn_version = (float) $_GET['dfrn_version'];
-
-		logger('dfrn_notify: new notification dfrn_id=' . $dfrn_id);
-
-		$direction = (-1);
-		if(strpos($dfrn_id,':') == 1) {
-			$direction = intval(substr($dfrn_id,0,1));
-			$dfrn_id = substr($dfrn_id,2);
-		}
-
-		$hash = random_string();
-
-		$status = 0;
-
-		$r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
-
-		$r = q("INSERT INTO `challenge` ( `challenge`, `dfrn_id`, `expire` )
-			VALUES( '%s', '%s', %d ) ",
-			dbesc($hash),
-			dbesc($dfrn_id),
-			intval(time() + 90 )
-		);
-
-		logger('dfrn_notify: challenge=' . $hash, LOGGER_DEBUG );
-
-		$sql_extra = '';
-		switch($direction) {
-			case (-1):
-				$sql_extra = sprintf(" AND ( `issued_id` = '%s' OR `dfrn_id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
-				$my_id = $dfrn_id;
-				break;
-			case 0:
-				$sql_extra = sprintf(" AND `issued_id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
-				$my_id = '1:' . $dfrn_id;
-				break;
-			case 1:
-				$sql_extra = sprintf(" AND `dfrn_id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
-				$my_id = '0:' . $dfrn_id;
-				break;
-			default:
-				$status = 1;
-				break; // NOTREACHED
-		}
-
-		$r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`page-flags` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid` 
-				WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 AND `user`.`nickname` = '%s' 
-				AND `user`.`account_expired` = 0 $sql_extra LIMIT 1",
-				dbesc($a->argv[1])
-		);
-
-		if(! count($r))
-			$status = 1;
-
-		$challenge = '';
-		$encrypted_id = '';
-		$id_str = $my_id . '.' . mt_rand(1000,9999);
-
-		$prv_key = trim($r[0]['prvkey']);
-		$pub_key = trim($r[0]['pubkey']);
-		$dplx = intval($r[0]['duplex']);
-
-		if((($dplx) && (strlen($prv_key))) || ((strlen($prv_key)) && (!(strlen($pub_key))))) {
-			openssl_private_encrypt($hash,$challenge,$prv_key);
-			openssl_private_encrypt($id_str,$encrypted_id,$prv_key);
-		}
-		elseif(strlen($pub_key)) {
-			openssl_public_encrypt($hash,$challenge,$pub_key);
-			openssl_public_encrypt($id_str,$encrypted_id,$pub_key);
-		}
-		else
-			$status = 1;
-
-		$challenge    = bin2hex($challenge);
-		$encrypted_id = bin2hex($encrypted_id);
-
-		$rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
-
-		$rino_enable = get_config('system','rino_encrypt');
-
-		if(! $rino_enable)
-			$rino = 0;
-
-		if((($r[0]['rel']) && ($r[0]['rel'] != CONTACT_IS_SHARING)) || ($r[0]['page-flags'] == PAGE_COMMUNITY)) {
-			$perm = 'rw';
-		}
-		else {
-			$perm = 'r';
-		}
-
-		header("Content-type: text/xml");
-
-		echo '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n" 
-			. '<dfrn_notify>' . "\r\n"
-			. "\t" . '<status>' . $status . '</status>' . "\r\n"
-			. "\t" . '<dfrn_version>' . DFRN_PROTOCOL_VERSION . '</dfrn_version>' . "\r\n"
-			. "\t" . '<rino>' . $rino . '</rino>' . "\r\n"
-			. "\t" . '<perm>' . $perm . '</perm>' . "\r\n" 
-			. "\t" . '<dfrn_id>' . $encrypted_id . '</dfrn_id>' . "\r\n" 
-			. "\t" . '<challenge>' . $challenge . '</challenge>' . "\r\n"
-			. '</dfrn_notify>' . "\r\n" ;
-
-		killme();
-	}
-
-}
diff --git a/mod/dfrn_poll.php b/mod/dfrn_poll.php
deleted file mode 100644
index 89b72859a..000000000
--- a/mod/dfrn_poll.php
+++ /dev/null
@@ -1,562 +0,0 @@
-<?php
-
-
-
-require_once('include/items.php');
-require_once('include/auth.php');
-
-
-function dfrn_poll_init(&$a) {
-
-
-	$dfrn_id         = ((x($_GET,'dfrn_id'))         ? $_GET['dfrn_id']              : '');
-	$type            = ((x($_GET,'type'))            ? $_GET['type']                 : 'data');
-	$last_update     = ((x($_GET,'last_update'))     ? $_GET['last_update']          : '');
-	$destination_url = ((x($_GET,'destination_url')) ? $_GET['destination_url']      : '');
-	$challenge       = ((x($_GET,'challenge'))       ? $_GET['challenge']            : '');
-	$sec             = ((x($_GET,'sec'))             ? $_GET['sec']                  : '');
-	$dfrn_version    = ((x($_GET,'dfrn_version'))    ? (float) $_GET['dfrn_version'] : 2.0);
-	$perm            = ((x($_GET,'perm'))            ? $_GET['perm']                 : 'r');
-
-	$direction = (-1);
-
-
-	if(strpos($dfrn_id,':') == 1) {
-		$direction = intval(substr($dfrn_id,0,1));
-		$dfrn_id   = substr($dfrn_id,2);
-	}
-
-	if(($dfrn_id === '') && (! x($_POST,'dfrn_id'))) {
-		if((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
-			killme();
-		}
-
-		$user = '';
-		if($a->argc > 1) {
-			$r = q("SELECT `hidewall`,`nickname` FROM `user` WHERE `user`.`nickname` = '%s' LIMIT 1",
-				dbesc($a->argv[1])
-			);
-			if((! count($r)) || (count($r) && $r[0]['hidewall']))
-				killme();
-			$user = $r[0]['nickname'];
-		}
- 
-		logger('dfrn_poll: public feed request from ' . $_SERVER['REMOTE_ADDR'] . ' for ' . $user);
-		header("Content-type: application/atom+xml");
-		echo get_feed_for($a, '', $user,$last_update);
-		killme();
-	}
-
-	if(($type === 'profile') && (! strlen($sec))) {
-
-		$sql_extra = '';
-		switch($direction) {
-			case (-1):
-				$sql_extra = sprintf(" AND ( `dfrn_id` = '%s' OR `issued_id` = '%s' ) ", dbesc($dfrn_id),dbesc($dfrn_id));
-				$my_id = $dfrn_id;
-				break;
-			case 0:
-				$sql_extra = sprintf(" AND `issued_id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
-				$my_id = '1:' . $dfrn_id;
-				break;
-			case 1:
-				$sql_extra = sprintf(" AND `dfrn_id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
-				$my_id = '0:' . $dfrn_id;
-				break;
-			default:
-				goaway(z_root());
-				break; // NOTREACHED
-		}
-
-		$r = q("SELECT `contact`.*, `user`.`username`, `user`.`nickname` 
-			FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
-			WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 
-			AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
-			dbesc($a->argv[1])
-		);
-		
-		if(count($r)) {
-
-			$s = fetch_url($r[0]['poll'] . '?dfrn_id=' . $my_id . '&type=profile-check');
-
-			logger("dfrn_poll: old profile returns " . $s, LOGGER_DATA);
-
-			if(strlen($s)) {
-
-				$xml = parse_xml_string($s);
-
-				if((int) $xml->status == 1) {
-					$_SESSION['authenticated'] = 1;
-					if(! x($_SESSION,'remote'))
-						$_SESSION['remote'] = array();
-
-					$_SESSION['remote'][] = array('cid' => $r[0]['id'],'uid' => $r[0]['uid'],'url' => $r[0]['url']);
-
-					$_SESSION['visitor_id'] = $r[0]['id'];
-					$_SESSION['visitor_home'] = $r[0]['url'];
-					$_SESSION['visitor_handle'] = $r[0]['addr'];
-					$_SESSION['visitor_visiting'] = $r[0]['uid'];
-					info( sprintf(t('%s welcomes %s'), $r[0]['username'] , $r[0]['name']) . EOL);
-					// Visitors get 1 day session.
-					$session_id = session_id();
-					$expire = time() + 86400;
-					q("UPDATE `session` SET `expire` = '%s' WHERE `sid` = '%s' LIMIT 1",
-						dbesc($expire),
-						dbesc($session_id)
-					); 
-				}
-			}
-			$profile = $r[0]['nickname'];
-			goaway((strlen($destination_url)) ? $destination_url : $a->get_baseurl() . '/profile/' . $profile);
-		}
-		goaway(z_root());
-
-	}
-
-	if($type === 'profile-check' && $dfrn_version < 2.2 ) {
-
-		if((strlen($challenge)) && (strlen($sec))) {
-
-			q("DELETE FROM `profile_check` WHERE `expire` < " . intval(time()));
-			$r = q("SELECT * FROM `profile_check` WHERE `sec` = '%s' ORDER BY `expire` DESC LIMIT 1",
-				dbesc($sec)
-			);
-			if(! count($r)) {
-				xml_status(3, 'No ticket');
-				// NOTREACHED
-			}
-			$orig_id = $r[0]['dfrn_id'];
-			if(strpos($orig_id, ':'))
-				$orig_id = substr($orig_id,2);
-
-			$c = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
-				intval($r[0]['cid'])
-			);
-			if(! count($c)) {
-				xml_status(3, 'No profile');
-			}
-			$contact = $c[0];
-
-			$sent_dfrn_id = hex2bin($dfrn_id);
-			$challenge    = hex2bin($challenge);
-
-			$final_dfrn_id = '';
-
-			if(($contact['duplex']) && strlen($contact['prvkey'])) {
-				openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
-				openssl_private_decrypt($challenge,$decoded_challenge,$contact['prvkey']);
-			}
-			else {
-				openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
-				openssl_public_decrypt($challenge,$decoded_challenge,$contact['pubkey']);
-			}
-
-			$final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
-
-			if(strpos($final_dfrn_id,':') == 1)
-				$final_dfrn_id = substr($final_dfrn_id,2);
-
-			if($final_dfrn_id != $orig_id) {
-				logger('profile_check: ' . $final_dfrn_id . ' != ' . $orig_id, LOGGER_DEBUG);
-				// did not decode properly - cannot trust this site 
-				xml_status(3, 'Bad decryption');
-			}
-
-			header("Content-type: text/xml");
-			echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?><dfrn_poll><status>0</status><challenge>$decoded_challenge</challenge><sec>$sec</sec></dfrn_poll>";
-			killme();
-			// NOTREACHED
-		}
-		else {
-				// old protocol
-
-			switch($direction) {
-				case 1:
-					$dfrn_id = '0:' . $dfrn_id;
-					break;
-				case 0:
-					$dfrn_id = '1:' . $dfrn_id;
-					break;
-				default:
-					break;
-			}
-
-
-			q("DELETE FROM `profile_check` WHERE `expire` < " . intval(time()));
-			$r = q("SELECT * FROM `profile_check` WHERE `dfrn_id` = '%s' ORDER BY `expire` DESC",
-				dbesc($dfrn_id));
-			if(count($r)) {
-				xml_status(1);
-				return; // NOTREACHED
-			}
-			xml_status(0);
-			return; // NOTREACHED
-		}
-	}
-
-}
-
-
-
-function dfrn_poll_post(&$a) {
-
-	$dfrn_id      = ((x($_POST,'dfrn_id'))      ? $_POST['dfrn_id']              : '');
-	$challenge    = ((x($_POST,'challenge'))    ? $_POST['challenge']            : '');
-	$url          = ((x($_POST,'url'))          ? $_POST['url']                  : '');
-	$sec          = ((x($_POST,'sec'))          ? $_POST['sec']                  : '');
-	$ptype        = ((x($_POST,'type'))         ? $_POST['type']                 : '');
-	$dfrn_version = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version'] : 2.0);
-	$perm         = ((x($_POST,'perm'))         ? $_POST['perm']                 : 'r');
-          
-	if($ptype === 'profile-check') {
-
-		if((strlen($challenge)) && (strlen($sec))) {
-
-			logger('dfrn_poll: POST: profile-check');
- 
-			q("DELETE FROM `profile_check` WHERE `expire` < " . intval(time()));
-			$r = q("SELECT * FROM `profile_check` WHERE `sec` = '%s' ORDER BY `expire` DESC LIMIT 1",
-				dbesc($sec)
-			);
-			if(! count($r)) {
-				xml_status(3, 'No ticket');
-				// NOTREACHED
-			}
-			$orig_id = $r[0]['dfrn_id'];
-			if(strpos($orig_id, ':'))
-				$orig_id = substr($orig_id,2);
-
-			$c = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
-				intval($r[0]['cid'])
-			);
-			if(! count($c)) {
-				xml_status(3, 'No profile');
-			}
-			$contact = $c[0];
-
-			$sent_dfrn_id = hex2bin($dfrn_id);
-			$challenge    = hex2bin($challenge);
-
-			$final_dfrn_id = '';
-
-			if(($contact['duplex']) && strlen($contact['prvkey'])) {
-				openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
-				openssl_private_decrypt($challenge,$decoded_challenge,$contact['prvkey']);
-			}
-			else {
-				openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
-				openssl_public_decrypt($challenge,$decoded_challenge,$contact['pubkey']);
-			}
-
-			$final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
-
-			if(strpos($final_dfrn_id,':') == 1)
-				$final_dfrn_id = substr($final_dfrn_id,2);
-
-			if($final_dfrn_id != $orig_id) {
-				logger('profile_check: ' . $final_dfrn_id . ' != ' . $orig_id, LOGGER_DEBUG);
-				// did not decode properly - cannot trust this site 
-				xml_status(3, 'Bad decryption');
-			}
-
-			header("Content-type: text/xml");
-			echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?><dfrn_poll><status>0</status><challenge>$decoded_challenge</challenge><sec>$sec</sec></dfrn_poll>";
-			killme();
-			// NOTREACHED
-		}
-
-	}
-
-	$direction    = (-1);
-	if(strpos($dfrn_id,':') == 1) {
-		$direction = intval(substr($dfrn_id,0,1));
-		$dfrn_id   = substr($dfrn_id,2);
-	}
-
-
-	$r = q("SELECT * FROM `challenge` WHERE `dfrn_id` = '%s' AND `challenge` = '%s' LIMIT 1",
-		dbesc($dfrn_id),
-		dbesc($challenge)
-	);
-
-	if(! count($r))
-		killme();
-
-	$type = $r[0]['type'];
-	$last_update = $r[0]['last_update'];
-
-	$r = q("DELETE FROM `challenge` WHERE `dfrn_id` = '%s' AND `challenge` = '%s' LIMIT 1",
-		dbesc($dfrn_id),
-		dbesc($challenge)
-	);
-
-
-	$sql_extra = '';
-	switch($direction) {
-		case (-1):
-			$sql_extra = sprintf(" AND `issued_id` = '%s' ", dbesc($dfrn_id));
-			$my_id = $dfrn_id;
-			break;
-		case 0:
-			$sql_extra = sprintf(" AND `issued_id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
-			$my_id = '1:' . $dfrn_id;
-			break;
-		case 1:
-			$sql_extra = sprintf(" AND `dfrn_id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
-			$my_id = '0:' . $dfrn_id;
-			break;
-		default:
-			goaway(z_root());
-			break; // NOTREACHED
-	}
-
-
-	$r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 $sql_extra LIMIT 1");
-
-
-	if(! count($r))
-		killme();
-
-	$contact = $r[0];
-	$owner_uid = $r[0]['uid'];
-	$contact_id = $r[0]['id']; 
-
-
-	if($type === 'reputation' && strlen($url)) {
-		$r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
-			dbesc($url),
-			intval($owner_uid)
-		);
-		$reputation = 0;
-		$text = '';
-
-		if(count($r)) {
-			$reputation = $r[0]['rating'];
-			$text = $r[0]['reason'];
-
-			if($r[0]['id'] == $contact_id) {	// inquiring about own reputation not allowed
-				$reputation = 0;
-				$text = '';
-			}
-		}
-
-		echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>
-		<reputation>
-			<url>$url</url>
-			<rating>$reputation</rating>
-			<description>$text</description>
-		</reputation>
-		";
-		killme();
-		// NOTREACHED
-	}
-	else {
-
-		// Update the writable flag if it changed		
-		logger('dfrn_poll: post request feed: ' . print_r($_POST,true),LOGGER_DATA);
-		if($dfrn_version >= 2.21) {
-			if($perm === 'rw')
-				$writable = 1;
-			else
-				$writable = 0;
-
-			if($writable !=  $contact['writable']) {
-				q("UPDATE `contact` SET `writable` = %d WHERE `id` = %d LIMIT 1",
-					intval($writable),
-					intval($contact_id)
-				);
-			}
-		}
-				
-		header("Content-type: application/atom+xml");
-		$o = get_feed_for($a,$dfrn_id, $a->argv[1], $last_update, $direction);
-		echo $o;
-		killme();
-
-	}
-}
-
-function dfrn_poll_content(&$a) {
-
-	$dfrn_id         = ((x($_GET,'dfrn_id'))         ? $_GET['dfrn_id']              : '');
-	$type            = ((x($_GET,'type'))            ? $_GET['type']                 : 'data');
-	$last_update     = ((x($_GET,'last_update'))     ? $_GET['last_update']          : '');
-	$destination_url = ((x($_GET,'destination_url')) ? $_GET['destination_url']      : '');
-	$sec             = ((x($_GET,'sec'))             ? $_GET['sec']                  : '');
-	$dfrn_version    = ((x($_GET,'dfrn_version'))    ? (float) $_GET['dfrn_version'] : 2.0);
-	$perm            = ((x($_GET,'perm'))            ? $_GET['perm']                 : 'r');
-
-	$direction = (-1);
-	if(strpos($dfrn_id,':') == 1) {
-		$direction = intval(substr($dfrn_id,0,1));
-		$dfrn_id = substr($dfrn_id,2);
-	}
-
-
-	if($dfrn_id != '') {
-		// initial communication from external contact
-		$hash = random_string();
-
-		$status = 0;
-
-		$r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
-
-		if($type !== 'profile') {
-			$r = q("INSERT INTO `challenge` ( `challenge`, `dfrn_id`, `expire` , `type`, `last_update` )
-				VALUES( '%s', '%s', '%s', '%s', '%s' ) ",
-				dbesc($hash),
-				dbesc($dfrn_id),
-				intval(time() + 60 ),
-				dbesc($type),
-				dbesc($last_update)
-			);
-		}
-		$sql_extra = '';
-		switch($direction) {
-			case (-1):
-				if($type === 'profile')
-					$sql_extra = sprintf(" AND ( `dfrn_id` = '%s' OR `issued_id` = '%s' ) ", dbesc($dfrn_id),dbesc($dfrn_id));
-				else
-					$sql_extra = sprintf(" AND `issued_id` = '%s' ", dbesc($dfrn_id));
-				$my_id = $dfrn_id;
-				break;
-			case 0:
-				$sql_extra = sprintf(" AND `issued_id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
-				$my_id = '1:' . $dfrn_id;
-				break;
-			case 1:
-				$sql_extra = sprintf(" AND `dfrn_id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
-				$my_id = '0:' . $dfrn_id;
-				break;
-			default:
-				goaway(z_root());
-				break; // NOTREACHED
-		}
-
-		$nickname = $a->argv[1];
-
-		$r = q("SELECT `contact`.*, `user`.`username`, `user`.`nickname` 
-			FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
-			WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 
-			AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
-			dbesc($nickname)
-		);
-
-		if(count($r)) {
-
-			$challenge = '';
-			$encrypted_id = '';
-			$id_str = $my_id . '.' . mt_rand(1000,9999);
-
-			if(($r[0]['duplex'] && strlen($r[0]['pubkey'])) || (! strlen($r[0]['prvkey']))) {
-				openssl_public_encrypt($hash,$challenge,$r[0]['pubkey']);
-				openssl_public_encrypt($id_str,$encrypted_id,$r[0]['pubkey']);
-			}
-			else {
-				openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
-				openssl_private_encrypt($id_str,$encrypted_id,$r[0]['prvkey']);
-			}
-
-			$challenge = bin2hex($challenge);
-			$encrypted_id = bin2hex($encrypted_id);
-		}
-		else {
-			$status = 1;
-			$challenge = '';
-			$encrypted_id = '';
-		}
-
-		if(($type === 'profile') && (strlen($sec))) {
-
-			// URL reply
-
-			if($dfrn_version < 2.2) {
-				$s = fetch_url($r[0]['poll'] 
-					. '?dfrn_id=' . $encrypted_id 
-					. '&type=profile-check'
-					. '&dfrn_version=' . DFRN_PROTOCOL_VERSION
-					. '&challenge=' . $challenge
-					. '&sec=' . $sec
-				);
-			}
-			else {
-				$s = post_url($r[0]['poll'], array(
-					'dfrn_id' => $encrypted_id,
-					'type' => 'profile-check',
-					'dfrn_version' => DFRN_PROTOCOL_VERSION,
-					'challenge' => $challenge,
-					'sec' => $sec
-				));
-			}
-			
-			$profile = ((count($r) && $r[0]['nickname']) ? $r[0]['nickname'] : $nickname);
-
-			switch($destination_url) {
-				case 'profile':
-					$dest = $a->get_baseurl() . '/profile/' . $profile . '?tab=profile';
-					break;
-				case 'photos':
-					$dest = $a->get_baseurl() . '/photos/' . $profile;
-					break;
-				case 'status':
-				case '':
-					$dest = $a->get_baseurl() . '/profile/' . $profile;
-					break;		
-				default:
-					$dest = $destination_url;
-					break;
-			}
-
-			logger("dfrn_poll: sec profile: " . $s, LOGGER_DATA);
-
-			if(strlen($s) && strstr($s,'<?xml')) {
-
-				$xml = parse_xml_string($s);
-
-				logger('dfrn_poll: profile: parsed xml: ' . print_r($xml,true), LOGGER_DATA);
-
-				logger('dfrn_poll: secure profile: challenge: ' . $xml->challenge . ' expecting ' . $hash);
-				logger('dfrn_poll: secure profile: sec: ' . $xml->sec . ' expecting ' . $sec);
- 
-				
-				if(((int) $xml->status == 0) && ($xml->challenge == $hash)  && ($xml->sec == $sec)) {
-					$_SESSION['authenticated'] = 1;
-					if(! x($_SESSION,'remote'))
-						$_SESSION['remote'] = array();
-					$_SESSION['remote'][] = array('cid' => $r[0]['id'],'uid' => $r[0]['uid'],'url' => $r[0]['url']);
-					$_SESSION['visitor_id'] = $r[0]['id'];
-					$_SESSION['visitor_home'] = $r[0]['url'];
-					$_SESSION['visitor_visiting'] = $r[0]['uid'];
-					info( sprintf(t('%s welcomes %s'), $r[0]['username'] , $r[0]['name']) . EOL);
-					// Visitors get 1 day session.
-					$session_id = session_id();
-					$expire = time() + 86400;
-					q("UPDATE `session` SET `expire` = '%s' WHERE `sid` = '%s' LIMIT 1",
-						dbesc($expire),
-						dbesc($session_id)
-					); 
-				}
-			
-				goaway($dest);
-			}
-			goaway($dest);
-			// NOTREACHED
-
-		}
-		else {
-			// XML reply
-			header("Content-type: text/xml");
-			echo '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n"
-				. '<dfrn_poll>' . "\r\n"
-				. "\t" . '<status>' . $status . '</status>' . "\r\n"
-				. "\t" . '<dfrn_version>' . DFRN_PROTOCOL_VERSION . '</dfrn_version>' . "\r\n"
-				. "\t" . '<dfrn_id>' . $encrypted_id . '</dfrn_id>' . "\r\n"
-				. "\t" . '<challenge>' . $challenge . '</challenge>' . "\r\n"
-				. '</dfrn_poll>' . "\r\n" ;
-			killme();
-			// NOTREACHED
-		}
-	}
-}
-
-
diff --git a/mod/dfrn_request.php b/mod/dfrn_request.php
deleted file mode 100644
index 95b2ec3a4..000000000
--- a/mod/dfrn_request.php
+++ /dev/null
@@ -1,837 +0,0 @@
-<?php
-
-/**
- *
- * Module: dfrn_request
- *
- * Purpose: Handles communication associated with the issuance of
- * friend requests.
- *
- */
-
-if(! function_exists('dfrn_request_init')) {
-function dfrn_request_init(&$a) {
-
-	if($a->argc > 1)
-		$which = $a->argv[1];
-
-	profile_load($a,$which);
-	return;
-}}
-
-
-/**
- * Function: dfrn_request_post
- *
- * Purpose:
- * Handles multiple scenarios.
- *
- * Scenario 1:
- * Clicking 'submit' on a friend request page.
- *
- * Scenario 2:
- * Following Scenario 1, we are brought back to our home site
- * in order to link our friend request with our own server cell.
- * After logging in, we click 'submit' to approve the linkage.
- *
- */
-
-if(! function_exists('dfrn_request_post')) {
-function dfrn_request_post(&$a) {
-
-	if(($a->argc != 2) || (! count($a->profile)))
-		return;
-
-
-	if(x($_POST, 'cancel')) {
-		goaway(z_root());
-	} 
-
-
-	/**
-	 *
-	 * Scenario 2: We've introduced ourself to another cell, then have been returned to our own cell
-	 * to confirm the request, and then we've clicked submit (perhaps after logging in). 
-	 * That brings us here:
-	 *
-	 */
-
-	if((x($_POST,'localconfirm')) && ($_POST['localconfirm'] == 1)) {
-
-		/**
-		 * Ensure this is a valid request
-		 */
-
-		if(local_user() && ($a->user['nickname'] == $a->argv[1]) && (x($_POST,'dfrn_url'))) {
-
-
-			$dfrn_url    = notags(trim($_POST['dfrn_url']));
-			$aes_allow   = (((x($_POST,'aes_allow')) && ($_POST['aes_allow'] == 1)) ? 1 : 0);
-			$confirm_key = ((x($_POST,'confirm_key')) ? $_POST['confirm_key'] : "");
-			$hidden = ((x($_POST,'hidden-contact')) ? intval($_POST['hidden-contact']) : 0);
-			$contact_record = null;
-	
-			if(x($dfrn_url)) {
-
-				/**
-				 * Lookup the contact based on their URL (which is the only unique thing we have at the moment)
-				 */
-	
-				$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND (`url` = '%s' OR `nurl` = '%s') AND `self` = 0 LIMIT 1",
-					intval(local_user()),
-					dbesc($dfrn_url),
-					dbesc(normalise_link($dfrn_url))
-				);
-	
-				if(count($r)) {
-					if(strlen($r[0]['dfrn_id'])) {
-
-						/**
-						 * We don't need to be here. It has already happened.
-						 */
-
-						notice( t("This introduction has already been accepted.") . EOL );
-						return;
-					}
-					else
-						$contact_record = $r[0];
-				}
-	
-				if(is_array($contact_record)) {
-					$r = q("UPDATE `contact` SET hidden = %d WHERE `id` = %d LIMIT 1",
-						intval($hidden),
-						intval($contact_record['id'])
-					);
-				}
-				else {
-	
-					/**
-					 * Scrape the other site's profile page to pick up the dfrn links, key, fn, and photo
-					 */
-
-					require_once('Scrape.php');
-	
-					$parms = scrape_dfrn($dfrn_url);
-	
-					if(! count($parms)) {
-						notice( t('Profile location is not valid or does not contain profile information.') . EOL );
-						return;
-					}
-					else {
-						if(! x($parms,'fn'))
-							notice( t('Warning: profile location has no identifiable owner name.') . EOL );
-						if(! x($parms,'photo'))
-							notice( t('Warning: profile location has no profile photo.') . EOL );
-						$invalid = validate_dfrn($parms);		
-						if($invalid) {
-							notice( sprintf( tt("%d required parameter was not found at the given location",
-												"%d required parameters were not found at the given location",
-												$invalid), $invalid) . EOL );
-							return;
-						}
-					}
-
-					$dfrn_request = $parms['dfrn-request'];
-
-                    /********* Escape the entire array ********/
-
-					dbesc_array($parms);
-
-					/******************************************/
-
-					/**
-					 * Create a contact record on our site for the other person
-					 */
-
-					$r = q("INSERT INTO `contact` ( `uid`, `created`,`url`, `nurl`, `name`, `nick`, `photo`, `site_pubkey`,
-						`request`, `confirm`, `notify`, `poll`, `poco`, `network`, `aes_allow`, `hidden`) 
-						VALUES ( %d, '%s', '%s', '%s', '%s' , '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d)",
-						intval(local_user()),
-						datetime_convert(),
-						dbesc($dfrn_url),
-						dbesc(normalise_link($dfrn_url)),
-						$parms['fn'],
-						$parms['nick'],
-						$parms['photo'],
-						$parms['key'],
-						$parms['dfrn-request'],
-						$parms['dfrn-confirm'],
-						$parms['dfrn-notify'],
-						$parms['dfrn-poll'],
-						$parms['dfrn-poco'],
-						dbesc(NETWORK_DFRN),
-						intval($aes_allow),
-						intval($hidden)
-					);
-				}
-
-				if($r) {
-					info( t("Introduction complete.") . EOL);
-				}
-
-				$r = q("select id from contact where uid = %d and url = '%s' and `site_pubkey` = '%s' limit 1",
-					intval(local_user()),
-					dbesc($dfrn_url),
-					$parms['key'] // this was already escaped
-				);
-				if(count($r)) {
-					$g = q("select def_gid from user where uid = %d limit 1",
-						intval(local_user())
-					);
-					if($g && intval($g[0]['def_gid'])) {
-						require_once('include/group.php');
-						group_add_member(local_user(),'',$r[0]['id'],$g[0]['def_gid']);
-					}
-				}
-
-				/**
-				 * Allow the blocked remote notification to complete
-				 */
-
-				if(is_array($contact_record))
-					$dfrn_request = $contact_record['request'];
-
-				if(strlen($dfrn_request) && strlen($confirm_key))
-					$s = fetch_url($dfrn_request . '?confirm_key=' . $confirm_key);
-				
-				// (ignore reply, nothing we can do it failed)
-
-				goaway(zid($dfrn_url));
-				return; // NOTREACHED
-
-			}
-
-		}
-
- 		// invalid/bogus request
-
-		notice( t('Unrecoverable protocol error.') . EOL );
-		goaway(z_root());
-		return; // NOTREACHED
-	}
-
-	/**
-	 * Otherwise:
-	 * 
-	 * Scenario 1:
-	 * We are the requestee. A person from a remote cell has made an introduction 
-	 * on our profile web page and clicked submit. We will use their DFRN-URL to 
-	 * figure out how to contact their cell.  
-	 *
-	 * Scrape the originating DFRN-URL for everything we need. Create a contact record
-	 * and an introduction to show our user next time he/she logs in.
-	 * Finally redirect back to the requestor so that their site can record the request.
-	 * If our user (the requestee) later confirms this request, a record of it will need 
-	 * to exist on the requestor's cell in order for the confirmation process to complete.. 
-	 *
-	 * It's possible that neither the requestor or the requestee are logged in at the moment,
-	 * and the requestor does not yet have any credentials to the requestee profile.
-	 *
-	 * Who is the requestee? We've already loaded their profile which means their nickname should be
-	 * in $a->argv[1] and we should have their complete info in $a->profile.
-	 *
-	 */
-
-	if(! (is_array($a->profile) && count($a->profile))) {
-		notice( t('Profile unavailable.') . EOL);
-		return;
-	}
-
-	$nickname       = $a->profile['nickname'];
-	$notify_flags   = $a->profile['notify-flags'];
-	$uid            = $a->profile['uid'];
-	$maxreq         = intval($a->profile['maxreq']);
-	$contact_record = null;
-	$failed         = false;
-	$parms          = null;
-
-
-	if( x($_POST,'dfrn_url')) {
-
-		/**
-		 * Block friend request spam
-		 */
-
-		if($maxreq) {
-			$r = q("SELECT * FROM `intro` WHERE `datetime` > '%s' AND `uid` = %d",
-				dbesc(datetime_convert('UTC','UTC','now - 24 hours')),
-				intval($uid)
-			);
-			if(count($r) > $maxreq) {
-				notice( sprintf( t('%s has received too many connection requests today.'),  $a->profile['name']) . EOL);
-				notice( t('Spam protection measures have been invoked.') . EOL);
-				notice( t('Friends are advised to please try again in 24 hours.') . EOL);
-				return;
-			} 
-		}
-
-		/**
-		 *
-		 * Cleanup old introductions that remain blocked. 
-		 * Also remove the contact record, but only if there is no existing relationship
-		 * Do not remove email contacts as these may be awaiting email verification
-		 */
-
-		$r = q("SELECT `intro`.*, `intro`.`id` AS `iid`, `contact`.`id` AS `cid`, `contact`.`rel` 
-			FROM `intro` LEFT JOIN `contact` on `intro`.`contact-id` = `contact`.`id`
-			WHERE `intro`.`blocked` = 1 AND `contact`.`self` = 0 
-			AND `contact`.`network` != '%s'
-			AND `intro`.`datetime` < UTC_TIMESTAMP() - INTERVAL 30 MINUTE ",
-			dbesc(NETWORK_MAIL2)
-		);
-		if(count($r)) {
-			foreach($r as $rr) {
-				if(! $rr['rel']) {
-					q("DELETE FROM `contact` WHERE `id` = %d LIMIT 1",
-						intval($rr['cid'])
-					);
-				}
-				q("DELETE FROM `intro` WHERE `id` = %d LIMIT 1",
-					intval($rr['iid'])
-				);
-			}
-		}
-
-		/**
-		 *
-		 * Cleanup any old email intros - which will have a greater lifetime
-		 */
-
-		$r = q("SELECT `intro`.*, `intro`.`id` AS `iid`, `contact`.`id` AS `cid`, `contact`.`rel` 
-			FROM `intro` LEFT JOIN `contact` on `intro`.`contact-id` = `contact`.`id`
-			WHERE `intro`.`blocked` = 1 AND `contact`.`self` = 0 
-			AND `contact`.`network` = '%s'
-			AND `intro`.`datetime` < UTC_TIMESTAMP() - INTERVAL 3 DAY ",
-			dbesc(NETWORK_MAIL2)
-		);
-		if(count($r)) {
-			foreach($r as $rr) {
-				if(! $rr['rel']) {
-					q("DELETE FROM `contact` WHERE `id` = %d LIMIT 1",
-						intval($rr['cid'])
-					);
-				}
-				q("DELETE FROM `intro` WHERE `id` = %d LIMIT 1",
-					intval($rr['iid'])
-				);
-			}
-		}
-
-		$email_follow = (x($_POST,'email_follow') ? intval($_POST['email_follow']) : 0);
-		$real_name = (x($_POST,'realname') ? notags(trim($_POST['realname'])) : '');
-
-		$url = trim($_POST['dfrn_url']);
-		if(! strlen($url)) {
-			notice( t("Invalid locator") . EOL );
-			return;
-		}
-
-		$hcard = '';
-
-		if($email_follow) {
-
-			if(! validate_email($url)) {
-				notice( t('Invalid email address.') . EOL);
-				return;
-			}
-
-			$addr    = $url;
-			$name    = ($realname) ? $realname : $addr;
-			$nick    = substr($addr,0,strpos($addr,'@'));
-			$url     = 'http://' . substr($addr,strpos($addr,'@') + 1);
-			$nurl    = normalise_url($host);
-			$poll    = 'email ' . random_string();
-			$notify  = 'smtp ' . random_string();
-			$blocked = 1;
-			$pending = 1;
-			$network = NETWORK_MAIL2;
-			$rel     = CONTACT_IS_FOLLOWER;
-
-			$mail_disabled = ((function_exists('imap_open') && (! get_config('system','imap_disabled'))) ? 0 : 1);
-			if(get_config('system','dfrn_only'))
-				$mail_disabled = 1;
-
-			if(! $mail_disabled) {
-				$failed = false;
-				$r = q("SELECT * FROM `mailacct` WHERE `uid` = %d LIMIT 1",
-					intval($uid)
-				);
-				if(! count($r)) {
-					notice( t('This account has not been configured for email. Request failed.') . EOL);
-					return;
-				}
-			}
-
-			$r = q("insert into contact ( uid, created, addr, name, nick, url, nurl, poll, notify, blocked, pending, network, rel )
-				values( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', %d ) ",
-				intval($uid),
-				dbesc(datetime_convert()),
-				dbesc($addr),
-				dbesc($name),
-				dbesc($nick),
-				dbesc($url),
-				dbesc($nurl),
-				dbesc($poll),
-				dbesc($notify),
-				intval($blocked),
-				intval($pending),
-				dbesc($network),
-				intval($rel)
-			);
-
-			$r = q("select id from contact where poll = '%s' and uid = %d limit 1",
-				dbesc($poll),
-				intval($uid)
-			);
-			if(count($r)) {
-				$contact_id = $r[0]['id'];
-
-				$g = q("select def_gid from user where uid = %d limit 1",
-					intval($uid)
-				);
-				if($g && intval($g[0]['def_gid'])) {
-					require_once('include/group.php');
-					group_add_member($uid,'',$contact_id,$g[0]['def_gid']);
-				}
-
-				$photo = avatar_img($addr);
-
-				$r = q("UPDATE `contact` SET 
-					`photo` = '%s', 
-					`thumb` = '%s',
-					`micro` = '%s', 
-					`name_date` = '%s', 
-					`uri_date` = '%s', 
-					`avatar_date` = '%s', 
-					`hidden` = 0,
-					WHERE `id` = %d LIMIT 1
-				",
-					dbesc($photos[0]),
-					dbesc($photos[1]),
-					dbesc($photos[2]),
-					dbesc(datetime_convert()),
-					dbesc(datetime_convert()),
-					dbesc(datetime_convert()),
-					intval($contact_id)
-				);
-			}
-
-			// contact is created. Now create an introduction
-
-			$hash = random_string();
-
-			$r = q("insert into intro ( uid, `contact-id`, knowyou, note, hash, datetime, blocked )
-				values( %d , %d, %d, '%s', '%s', '%s', %d ) ",
-				intval($uid),
-				intval($contact_id),
-				((x($_POST,'knowyou') && ($_POST['knowyou'] == 1)) ? 1 : 0),
-				dbesc(notags(trim($_POST['dfrn-request-message']))),
-				dbesc($hash),
-				dbesc(datetime_convert()),
-				1
-			);
-				
-			// Next send an email verify form to the requestor.
-
-		}
-
-		else {
-
-			// Canonicalise email-style profile locator
-
-			$url = webfinger_dfrn($url,$hcard);
-
-			if(substr($url,0,5) === 'stat:') {
-				$network = NETWORK_OSTATUS;
-				$url = substr($url,5);
-			}
-			else {
-				$network = NETWORK_DFRN;
-			}
-		}
-
-		logger('dfrn_request: url: ' . $url);
-
-		if(! strlen($url)) {
-			notice( t("Unable to resolve your name at the provided location.") . EOL);			
-			return;
-		}
-
-
-		if($network === NETWORK_DFRN) {
-			$ret = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' AND `self` = 0 LIMIT 1", 
-				intval($uid),
-				dbesc($url)
-			);
-
-			if(count($ret)) {
-				if(strlen($ret[0]['issued_id'])) {
-					notice( t('You have already introduced yourself here.') . EOL );
-					return;
-				}
-				elseif($ret[0]['rel'] == CONTACT_IS_FRIEND) {
-					notice( sprintf( t('Apparently you are already friends with %s.'), $a->profile['name']) . EOL);
-					return;
-				}
-				else {
-					$contact_record = $ret[0];
-					$parms = array('dfrn-request' => $ret[0]['request']);
-				}
-			}
-
-			$issued_id = random_string();
-
-			if(is_array($contact_record)) {
-				// There is a contact record but no issued_id, so this
-				// is a reciprocal introduction from a known contact
-				$r = q("UPDATE `contact` SET `issued_id` = '%s' WHERE `id` = %d LIMIT 1",
-					dbesc($issued_id),
-					intval($contact_record['id'])
-				);
-			}
-			else {
-				if(! validate_url($url)) {
-					notice( t('Invalid profile URL.') . EOL);
-					goaway($a->get_baseurl() . '/' . $a->cmd);
-					return; // NOTREACHED
-				}
-
-				if(! allowed_url($url)) {
-					notice( t('Disallowed profile URL.') . EOL);
-					goaway($a->get_baseurl() . '/' . $a->cmd);
-					return; // NOTREACHED
-				}
-			
-
-				require_once('Scrape.php');
-
-				$parms = scrape_dfrn(($hcard) ? $hcard : $url);
-
-				if(! count($parms)) {
-					notice( t('Profile location is not valid or does not contain profile information.') . EOL );
-					goaway($a->get_baseurl() . '/' . $a->cmd);
-				}
-				else {
-					if(! x($parms,'fn'))
-						notice( t('Warning: profile location has no identifiable owner name.') . EOL );
-					if(! x($parms,'photo'))
-						notice( t('Warning: profile location has no profile photo.') . EOL );
-					$invalid = validate_dfrn($parms);		
-					if($invalid) {
-						notice( sprintf( tt("%d required parameter was not found at the given location",
-											"%d required parameters were not found at the given location",
-											$invalid), $invalid) . EOL );
-	
-						return;
-					}
-				}
-
-
-				$parms['url'] = $url;
-				$parms['issued_id'] = $issued_id;
-
-
-				dbesc_array($parms);
-				$r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`,`name`, `nick`, `issued_id`, `photo`, `site_pubkey`,
-					`request`, `confirm`, `notify`, `poll`, `poco`, `network` )
-					VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )",
-					intval($uid),
-					dbesc(datetime_convert()),
-					$parms['url'],
-					dbesc(normalise_link($parms['url'])),
-					$parms['fn'],
-					$parms['nick'],
-					$parms['issued_id'],
-					$parms['photo'],
-					$parms['key'],
-					$parms['dfrn-request'],
-					$parms['dfrn-confirm'],
-					$parms['dfrn-notify'],
-					$parms['dfrn-poll'],
-					$parms['dfrn-poco'],
-					dbesc(NETWORK_DFRN)
-				);
-
-				// find the contact record we just created
-				if($r) {	
-					$r = q("SELECT `id` FROM `contact` 
-						WHERE `uid` = %d AND `url` = '%s' AND `issued_id` = '%s' LIMIT 1",
-						intval($uid),
-						$parms['url'],
-						$parms['issued_id']
-					);
-					if(count($r)) 
-						$contact_record = $r[0];
-				}
-	
-			}
-			if($r === false) {
-				notice( t('Failed to update contact record.') . EOL );
-				return;
-			}
-
-			$hash = random_string() . (string) time();   // Generate a confirm_key
-	
-			if(is_array($contact_record)) {
-				$ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime`)
-					VALUES ( %d, %d, 1, %d, '%s', '%s', '%s' )",
-					intval($uid),
-					intval($contact_record['id']),
-					((x($_POST,'knowyou') && ($_POST['knowyou'] == 1)) ? 1 : 0),
-					dbesc(notags(trim($_POST['dfrn-request-message']))),
-					dbesc($hash),
-					dbesc(datetime_convert())
-				);
-			}
-	
-			// This notice will only be seen by the requestor if the requestor and requestee are on the same server.
-
-			if(! $failed) 
-				info( t('Your introduction has been sent.') . EOL );
-
-			// "Homecoming" - send the requestor back to their site to record the introduction.
-
-			$dfrn_url = bin2hex($a->get_baseurl() . '/profile/' . $nickname);
-			$aes_allow = ((function_exists('openssl_encrypt')) ? 1 : 0);
-
-			goaway($parms['dfrn-request'] . "?dfrn_url=$dfrn_url" 
-				. '&dfrn_version=' . DFRN_PROTOCOL_VERSION 
-				. '&confirm_key='  . $hash 
-				. (($aes_allow) ? "&aes_allow=1" : "")
-			);
-			// NOTREACHED
-			// END $network === NETWORK_DFRN
-		}
-		elseif($network === NETWORK_OSTATUS) {
-			
-			/**
-			 *
-			 * OStatus network
-			 * Check contact existence
-			 * Try and scrape together enough information to create a contact record, 
-			 * with us as CONTACT_IS_FOLLOWER
-			 * Substitute our user's feed URL into $url template
-			 * Send the subscriber home to subscribe
-			 *
-			 */
-
-			$url = str_replace('{uri}', $a->get_baseurl() . '/dfrn_poll/' . $nickname, $url);
-			goaway($url);
-			// NOTREACHED
-			// END $network === NETWORK_OSTATUS
-		}
-
-	}	return;
-}}
-
-
-
-
-if(! function_exists('dfrn_request_content')) {
-function dfrn_request_content(&$a) {
-
-	if(($a->argc != 2) || (! count($a->profile)))
-		return "";
-
-
-	// "Homecoming". Make sure we're logged in to this site as the correct user. Then offer a confirm button
-	// to send us to the post section to record the introduction.
-
-	if(x($_GET,'dfrn_url')) {
-
-		if(! local_user()) {
-			info( t("Please login to confirm introduction.") . EOL );
-
-			/* setup the return URL to come back to this page if they use openid */
-
-			$stripped = str_replace('q=','',$a->query_string);
-			$_SESSION['return_url'] = trim($stripped,'/');
-
-			return login();
-		}
-
-		// Edge case, but can easily happen in the wild. This person is authenticated, 
-		// but not as the person who needs to deal with this request.
-
-		if ($a->user['nickname'] != $a->argv[1]) {
-			notice( t("Incorrect identity currently logged in. Please login to <strong>this</strong> profile.") . EOL);
-			return login();
-		}
-
-		$dfrn_url = notags(trim(hex2bin($_GET['dfrn_url'])));
-		$aes_allow = (((x($_GET,'aes_allow')) && ($_GET['aes_allow'] == 1)) ? 1 : 0);
-		$confirm_key = (x($_GET,'confirm_key') ? $_GET['confirm_key'] : "");
-		$tpl = get_markup_template("dfrn_req_confirm.tpl");
-		$o  = replace_macros($tpl,array(
-			'$dfrn_url' => $dfrn_url,
-			'$aes_allow' => (($aes_allow) ? '<input type="hidden" name="aes_allow" value="1" />' : "" ),
-			'$hidethem' => t('Hide this contact'),
-			'$hidechecked' => '',
-			'$confirm_key' => $confirm_key,
-			'$welcome' => sprintf( t('Welcome home %s.'), $a->user['username']),
-			'$please' => sprintf( t('Please confirm your introduction/connection request to %s.'), $dfrn_url),
-			'$submit' => t('Confirm'),
-			'$uid' => $_SESSION['uid'],
-			'$nickname' => $a->user['nickname'],
-			'dfrn_rawurl' => $_GET['dfrn_url']
-			));
-		return $o;
-
-	}
-	elseif((x($_GET,'confirm_key')) && strlen($_GET['confirm_key'])) { 
-
-		// we are the requestee and it is now safe to send our user their introduction,
-		// We could just unblock it, but first we have to jump through a few hoops to 
-		// send an email, or even to find out if we need to send an email. 
-
-		$intro = q("SELECT * FROM `intro` WHERE `hash` = '%s' LIMIT 1",
-			dbesc($_GET['confirm_key'])
-		);
-
-		if(count($intro)) {
-
-			$r = q("SELECT `contact`.*, `user`.* FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
-				WHERE `contact`.`id` = %d LIMIT 1",
-				intval($intro[0]['contact-id'])
-			);
-
-			$auto_confirm = false;
-
-			if(count($r)) {
-				if(($r[0]['page-flags'] != PAGE_NORMAL) && ($r[0]['page-flags'] != PAGE_PRVGROUP))
-					$auto_confirm = true;				
-
-				if(! $auto_confirm) {
-					require_once('include/enotify.php');
-					notification(array(
-						'type'         => NOTIFY_INTRO,
-						'notify_flags' => $r[0]['notify-flags'],
-						'language'     => $r[0]['language'],
-						'to_name'      => $r[0]['username'],
-						'to_email'     => $r[0]['email'],
-						'uid'          => $r[0]['uid'],
-						'link'		   => $a->get_baseurl() . '/notifications/intros',
-						'source_name'  => ((strlen(stripslashes($r[0]['name']))) ? stripslashes($r[0]['name']) : t('[Name Withheld]')),
-						'source_link'  => $r[0]['url'],
-						'source_photo' => $r[0]['photo'],
-						'verb'         => ACTIVITY_REQ_FRIEND,
-						'otype'        => 'intro'
-					));
-				}
-
-				if($auto_confirm) {
-					require_once('mod/dfrn_confirm.php');
-					$handsfree = array(
-						'uid' => $r[0]['uid'],
-						'node' => $r[0]['nickname'],
-						'dfrn_id' => $r[0]['issued_id'],
-						'intro_id' => $intro[0]['id'],
-						'duplex' => (($r[0]['page-flags'] == PAGE_FREELOVE) ? 1 : 0),
-						'activity' => intval(get_pconfig($r[0]['uid'],'system','post_newfriend'))
-					);
-					dfrn_confirm_post($a,$handsfree);
-				}
-
-			}
-
-			if(! $auto_confirm) {
-
-				// If we are auto_confirming, this record will have already been nuked
-				// in dfrn_confirm_post()
-
-				$r = q("UPDATE `intro` SET `blocked` = 0 WHERE `hash` = '%s' LIMIT 1",
-					dbesc($_GET['confirm_key'])
-				);
-			}
-		}
-
-		killme();
-		return; // NOTREACHED
-	}
-	else {
-
-		/**
-		 * Normal web request. Display our user's introduction form.
-		 */
- 
-		if((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
-			notice( t('Public access denied.') . EOL);
-			return;
-		}
-
-
-		/**
-		 * Try to auto-fill the profile address
-		 */
-
-		if(local_user()) {
-			if(strlen($a->path)) {
-				$myaddr = $a->get_baseurl() . '/profile/' . $a->user['nickname'];
-			}
-			else {
-				$myaddr = $a->user['nickname'] . '@' . substr(z_root(), strpos(z_root(),'://') + 3 );
-			}
-		}
-		elseif(x($_GET,'addr')) {
-			$myaddr = hex2bin($_GET['addr']);
-		}
-		else {
-			/* $_GET variables are already urldecoded */ 
-			$myaddr = ((x($_GET,'address')) ? $_GET['address'] : '');
-		}
-
-		// last, try a zid
-		if(! strlen($myaddr))
-			$myaddr = get_my_url();
-
-
-		$target_addr = $a->profile['nickname'] . '@' . substr(z_root(), strpos(z_root(),'://') + 3 );
-
-
-		/**
-		 *
-		 * The auto_request form only has the profile address
-		 * because nobody is going to read the comments and 
-		 * it doesn't matter if they know you or not.
-		 *
-		 */
-
-		if($a->profile['page-flags'] == PAGE_NORMAL)
-			$tpl = get_markup_template('dfrn_request.tpl');
-		else
-			$tpl = get_markup_template('auto_request.tpl');
-
-		$page_desc .= t("Please enter your 'Identity Address' from one of the following supported communications networks:");
-
-
-		$emailnet = '';
-
-		$invite_desc = t('If you are not yet a member of the free social web, <a href="http://dir.friendica.com/siteinfo">follow this link to find a public Friendica site and join us today</a>.');
-
-		$o .= replace_macros($tpl,array(
-			'$header' => t('Friend/Connection Request'),
-			'$desc' => t('Examples: jojo@zothub.com, bob@example.com'),
-			'$pls_answer' => t('Please answer the following:'),
-			'$does_know' => sprintf( t('Does %s know you?'),$a->profile['name']),
-			'$yes' => t('Yes'),
-			'$no' => t('No'),
-			'$add_note' => t('Add a personal note:'),
-			'$page_desc' => $page_desc,
-			'$friendica' => t('Friendica'),
-			'$statusnet' => t('StatusNet/Federated Social Web'),
-			'$diaspora' => t('Diaspora'),
-			'$diasnote' => sprintf (t(' - please do not use this form.  Instead, enter %s into your Diaspora search bar.'),$target_addr),
-			'$your_address' => t('Your webbie (web-id):'),
-			'$invite_desc' => $invite_desc,
-			'$emailnet' => $emailnet,
-			'$submit' => t('Submit Request'),
-			'$cancel' => t('Cancel'),
-			'$nickname' => $a->argv[1],
-			'$name' => $a->profile['name'],
-			'$myaddr' => $myaddr
-		));
-		return $o;
-	}
-
-	return; // Somebody is fishing.
-}}