]> git.mxchange.org Git - friendica.git/blobdiff - include/diaspora.php
Merge pull request #317 from CatoTH/master
[friendica.git] / include / diaspora.php
index ac78beb2f9e58a9d2037307d01e19e577a71a7ac..3f2cdf8e4691c34a721b7b86fe4947cda909d271 100644 (file)
@@ -9,6 +9,12 @@ require_once('include/queue_fn.php');
 
 function diaspora_dispatch_public($msg) {
 
+       $enabled = intval(get_config('system','diaspora_enabled'));
+       if(! $enabled) {
+               logger('mod-diaspora: disabled');
+               return;
+       }
+
        $r = q("SELECT `user`.* FROM `user` WHERE `user`.`uid` IN ( SELECT `contact`.`uid` FROM `contact` WHERE `contact`.`network` = '%s' AND `contact`.`addr` = '%s' ) AND `account_expired` = 0 ",
                dbesc(NETWORK_DIASPORA),
                dbesc($msg['author'])
@@ -29,6 +35,12 @@ function diaspora_dispatch($importer,$msg) {
 
        $ret = 0;
 
+       $enabled = intval(get_config('system','diaspora_enabled'));
+       if(! $enabled) {
+               logger('mod-diaspora: disabled');
+               return;
+       }
+
        // php doesn't like dashes in variable names
 
        $msg['message'] = str_replace(
@@ -41,6 +53,9 @@ function diaspora_dispatch($importer,$msg) {
 
        $xmlbase = $parsed_xml->post;
 
+       logger('diaspora_dispatch: ' . print_r($xmlbase,true), LOGGER_DEBUG);
+
+
        if($xmlbase->request) {
                $ret = diaspora_request($importer,$xmlbase->request);
        }
@@ -65,9 +80,18 @@ function diaspora_dispatch($importer,$msg) {
        elseif($xmlbase->retraction) {
                $ret = diaspora_retraction($importer,$xmlbase->retraction,$msg);
        }
+       elseif($xmlbase->signed_retraction) {
+               $ret = diaspora_signed_retraction($importer,$xmlbase->signed_retraction,$msg);
+       }
        elseif($xmlbase->photo) {
                $ret = diaspora_photo($importer,$xmlbase->photo,$msg);
        }
+       elseif($xmlbase->conversation) {
+               $ret = diaspora_conversation($importer,$xmlbase->conversation,$msg);
+       }
+       elseif($xmlbase->message) {
+               $ret = diaspora_message($importer,$xmlbase->message,$msg);
+       }
        else {
                logger('diaspora_dispatch: unknown message type: ' . print_r($xmlbase,true));
        }
@@ -176,6 +200,13 @@ function diaspora_msg_build($msg,$user,$contact,$prvkey,$pubkey,$public = false)
 
        logger('diaspora_msg_build: ' . $msg, LOGGER_DATA);
 
+       // without a public key nothing will work
+
+       if(! $pubkey) {
+               logger('diaspora_msg_build: pubkey missing: contact id: ' . $contact['id']);
+               return '';
+       }
+
        $inner_aes_key = random_string(32);
        $b_inner_aes_key = base64_encode($inner_aes_key);
        $inner_iv = random_string(16);
@@ -417,6 +448,8 @@ function diaspora_decode($importer,$xml) {
        
 function diaspora_request($importer,$xml) {
 
+       $a = get_app();
+
        $sender_handle = unxmlify($xml->sender_handle);
        $recipient_handle = unxmlify($xml->recipient_handle);
 
@@ -430,14 +463,69 @@ function diaspora_request($importer,$xml) {
                // perhaps we were already sharing with this person. Now they're sharing with us.
                // That makes us friends.
 
-               if($contact['rel'] == CONTACT_IS_FOLLOWER) {
+               if($contact['rel'] == CONTACT_IS_FOLLOWER && $importer['page-flags'] != PAGE_COMMUNITY) {
                        q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
                                intval(CONTACT_IS_FRIEND),
                                intval($contact['id']),
                                intval($importer['uid'])
                        );
                }
-               // send notification?
+               // send notification
+
+               $r = q("SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
+                       intval($importer['uid'])
+               );
+
+               if((count($r)) && (! $r[0]['hide-friends']) && (! $contact['hidden'])) {
+                       require_once('include/items.php');
+
+                       $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
+                               intval($importer['uid'])
+                       );
+
+                       // they are not CONTACT_IS_FOLLOWER anymore but that's what we have in the array
+
+                       if(count($self) && $contact['rel'] == CONTACT_IS_FOLLOWER) {
+
+                               $arr = array();
+                               $arr['uri'] = $arr['parent-uri'] = item_new_uri($a->get_hostname(), $importer['uid']); 
+                               $arr['uid'] = $importer['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'];
+                               $arr['verb'] = ACTIVITY_FRIEND;
+                               $arr['object-type'] = ACTIVITY_OBJ_PERSON;
+                               
+                               $A = '[url=' . $self[0]['url'] . ']' . $self[0]['name'] . '[/url]';
+                               $B = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
+                               $BPhoto = '[url=' . $contact['url'] . ']' . '[img]' . $contact['thumb'] . '[/img][/url]';
+                               $arr['body'] =  sprintf( t('%1$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");
+
+                       }
+
+               }
+
                return;
        }
        
@@ -451,6 +539,8 @@ function diaspora_request($importer,$xml) {
 
        $batch = (($ret['batch']) ? $ret['batch'] : implode('/', array_slice(explode('/',$ret['url']),0,3)) . '/receive/public');
 
+
+
        $r = q("INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`nurl`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
                VALUES ( %d, '%s', '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d) ",
                intval($importer['uid']),
@@ -474,9 +564,23 @@ function diaspora_request($importer,$xml) {
 
        $contact_record = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
 
-       $hash = random_string() . (string) time();   // Generate a confirm_key
+       if(! $contact_record) {
+               logger('diaspora_request: unable to locate newly created contact record.');
+               return;
+       }
+
+       $g = q("select def_gid from user where uid = %d limit 1",
+               intval($importer['uid'])
+       );
+       if($g && intval($g[0]['def_gid'])) {
+               require_once('include/group.php');
+               group_add_member($importer['uid'],'',$contact_record['id'],$g[0]['def_gid']);
+       }
+
+       if($importer['page-flags'] == PAGE_NORMAL) {
+
+               $hash = random_string() . (string) time();   // Generate a confirm_key
        
-       if($contact_record) {
                $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime` )
                        VALUES ( %d, %d, %d, %d, '%s', '%s', '%s' )",
                        intval($importer['uid']),
@@ -488,10 +592,65 @@ function diaspora_request($importer,$xml) {
                        dbesc(datetime_convert())
                );
        }
+       else {
+
+               // automatic friend approval
+
+               require_once('include/Photo.php');
+
+               $photos = import_profile_photo($contact_record['photo'],$importer['uid'],$contact_record['id']);
+               
+               // technically they are sharing with us (CONTACT_IS_SHARING), 
+               // but if our page-type is PAGE_COMMUNITY or PAGE_SOAPBOX
+               // we are going to change the relationship and make them a follower.
+
+               if($importer['page-flags'] == PAGE_FREELOVE)
+                       $new_relation = CONTACT_IS_FRIEND;
+               else
+                       $new_relation = CONTACT_IS_FOLLOWER;
+
+               $r = q("UPDATE `contact` SET 
+                       `photo` = '%s', 
+                       `thumb` = '%s',
+                       `micro` = '%s', 
+                       `rel` = %d, 
+                       `name-date` = '%s', 
+                       `uri-date` = '%s', 
+                       `avatar-date` = '%s', 
+                       `blocked` = 0, 
+                       `pending` = 0
+                       WHERE `id` = %d LIMIT 1
+                       ",
+                       dbesc($photos[0]),
+                       dbesc($photos[1]),
+                       dbesc($photos[2]),
+                       intval($new_relation),
+                       dbesc(datetime_convert()),
+                       dbesc(datetime_convert()),
+                       dbesc(datetime_convert()),
+                       intval($contact_record['id'])
+               );
+
+               $u = q("select * from user where uid = %d limit 1",intval($importer['uid']));
+               if($u)
+                       $ret = diaspora_share($u[0],$contact_record);
+       }
 
        return;
 }
 
+function diaspora_post_allow($importer,$contact) {
+       if(($contact['blocked']) || ($contact['readonly']))
+               return false;
+       if($contact['rel'] == CONTACT_IS_SHARING || $contact['rel'] == CONTACT_IS_FRIEND)
+               return true;
+       if($contact['rel'] == CONTACT_IS_FOLLOWER)
+               if($importer['page-flags'] == PAGE_COMMUNITY)
+                       return true;
+       return false;
+}
+
+
 function diaspora_post($importer,$xml) {
 
        $a = get_app();
@@ -502,7 +661,7 @@ function diaspora_post($importer,$xml) {
        if(! $contact)
                return;
 
-       if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { 
+       if(! diaspora_post_allow($importer,$contact)) {
                logger('diaspora_post: Ignoring this author.');
                return 202;
        }
@@ -546,16 +705,33 @@ function diaspora_post($importer,$xml) {
                        if(strpos($tag,'#') === 0) {
                                if(strpos($tag,'[url='))
                                        continue;
+
+                               // don't link tags that are already embedded in links
+
+                               if(preg_match('/\[(.*?)' . preg_quote($tag,'/') . '(.*?)\]/',$body))
+                                       continue;
+                               if(preg_match('/\[(.*?)\]\((.*?)' . preg_quote($tag,'/') . '(.*?)\)/',$body))
+                                       continue;
+
                                $basetag = str_replace('_',' ',substr($tag,1));
-                               $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
+                               $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
                                if(strlen($str_tags))
                                        $str_tags .= ',';
-                               $str_tags .= '#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
+                               $str_tags .= '#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
                                continue;
                        }
                }
        }
-       
+
+       $cnt = preg_match_all('/@\[url=(.*?)\[\/url\]/ism',$body,$matches,PREG_SET_ORDER);
+       if($cnt) {
+               foreach($matches as $mtch) {
+                       if(strlen($str_tags))
+                               $str_tags .= ',';
+                       $str_tags .= '@[url=' . $mtch[1] . '[/url]';    
+               }
+       }
+
        $datarray['uid'] = $importer['uid'];
        $datarray['contact-id'] = $contact['id'];
        $datarray['wall'] = 0;
@@ -604,7 +780,7 @@ function diaspora_reshare($importer,$xml) {
        if(! $contact)
                return;
 
-       if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { 
+       if(! diaspora_post_allow($importer,$contact)) {
                logger('diaspora_reshare: Ignoring this author: ' . $diaspora_handle . ' ' . print_r($xml,true));
                return 202;
        }
@@ -638,15 +814,15 @@ function diaspora_reshare($importer,$xml) {
 
        if(strlen($source_xml->post->asphoto->objectId) && ($source_xml->post->asphoto->objectId != 0) && ($source_xml->post->asphoto->image_url)) {
                $body = '[url=' . notags(unxmlify($source_xml->post->asphoto->image_url)) . '][img]' . notags(unxmlify($source_xml->post->asphoto->objectId)) . '[/img][/url]' . "\n";
-               $body = scale_diaspora_images($body,false);
+               $body = scale_external_images($body,false);
        }
        elseif($source_xml->post->asphoto->image_url) {
                $body = '[img]' . notags(unxmlify($source_xml->post->asphoto->image_url)) . '[/img]' . "\n";
-               $body = scale_diaspora_images($body);
+               $body = scale_external_images($body);
        }
        elseif($source_xml->post->status_message) {
                $body = diaspora2bb($source_xml->post->status_message->raw_message);
-               $body = scale_diaspora_images($body);
+               $body = scale_external_images($body);
 
        }
        else {
@@ -694,11 +870,20 @@ function diaspora_reshare($importer,$xml) {
                        if(strpos($tag,'#') === 0) {
                                if(strpos($tag,'[url='))
                                        continue;
+
+                               // don't link tags that are already embedded in links
+
+                               if(preg_match('/\[(.*?)' . preg_quote($tag,'/') . '(.*?)\]/',$body))
+                                       continue;
+                               if(preg_match('/\[(.*?)\]\((.*?)' . preg_quote($tag,'/') . '(.*?)\)/',$body))
+                                       continue;
+
+
                                $basetag = str_replace('_',' ',substr($tag,1));
-                               $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
+                               $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
                                if(strlen($str_tags))
                                        $str_tags .= ',';
-                               $str_tags .= '#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
+                               $str_tags .= '#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
                                continue;
                        }
                }
@@ -747,7 +932,7 @@ function diaspora_asphoto($importer,$xml) {
        if(! $contact)
                return;
 
-       if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { 
+       if(! diaspora_post_allow($importer,$contact)) {
                logger('diaspora_asphoto: Ignoring this author.');
                return 202;
        }
@@ -780,11 +965,11 @@ function diaspora_asphoto($importer,$xml) {
 
        if(strlen($xml->objectId) && ($xml->objectId != 0) && ($xml->image_url)) {
                $body = '[url=' . notags(unxmlify($xml->image_url)) . '][img]' . notags(unxmlify($xml->objectId)) . '[/img][/url]' . "\n";
-               $body = scale_diaspora_images($body,false);
+               $body = scale_external_images($body,false);
        }
        elseif($xml->image_url) {
                $body = '[img]' . notags(unxmlify($xml->image_url)) . '[/img]' . "\n";
-               $body = scale_diaspora_images($body);
+               $body = scale_external_images($body);
        }
        else {
                logger('diaspora_asphoto: no photo url found.');
@@ -842,15 +1027,13 @@ function diaspora_comment($importer,$xml,$msg) {
 
        $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
 
-       $text = $xml->text;
-
        $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
        if(! $contact) {
                logger('diaspora_comment: cannot find contact: ' . $msg['author']);
                return;
        }
 
-       if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { 
+       if(! diaspora_post_allow($importer,$contact)) {
                logger('diaspora_comment: Ignoring this author.');
                return 202;
        }
@@ -928,11 +1111,20 @@ function diaspora_comment($importer,$xml,$msg) {
                        if(strpos($tag,'#') === 0) {
                                if(strpos($tag,'[url='))
                                        continue;
+
+                               // don't link tags that are already embedded in links
+
+                               if(preg_match('/\[(.*?)' . preg_quote($tag,'/') . '(.*?)\]/',$body))
+                                       continue;
+                               if(preg_match('/\[(.*?)\]\((.*?)' . preg_quote($tag,'/') . '(.*?)\)/',$body))
+                                       continue;
+
+
                                $basetag = str_replace('_',' ',substr($tag,1));
-                               $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
+                               $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
                                if(strlen($str_tags))
                                        $str_tags .= ',';
-                               $str_tags .= '#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
+                               $str_tags .= '#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
                                continue;
                        }
                }
@@ -987,12 +1179,325 @@ function diaspora_comment($importer,$xml,$msg) {
 
                proc_run('php','include/notifier.php','comment',$message_id);
        }
+
+       $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 AND `deleted` = 0 ",
+               dbesc($parent_item['uri']),
+               intval($importer['uid'])
+       );
+
+       if(count($myconv)) {
+               $importer_url = $a->get_baseurl() . '/profile/' . $importer['nickname'];
+
+               foreach($myconv as $conv) {
+
+                       // now if we find a match, it means we're in this conversation
+       
+                       if(! link_compare($conv['author-link'],$importer_url))
+                               continue;
+
+                       require_once('include/enotify.php');
+                                                               
+                       $conv_parent = $conv['parent'];
+
+                       notification(array(
+                               'type'         => NOTIFY_COMMENT,
+                               'notify_flags' => $importer['notify-flags'],
+                               'language'     => $importer['language'],
+                               'to_name'      => $importer['username'],
+                               'to_email'     => $importer['email'],
+                               'uid'          => $importer['uid'],
+                               'item'         => $datarray,
+                               'link'             => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id,
+                               'source_name'  => $datarray['author-name'],
+                               'source_link'  => $datarray['author-link'],
+                               'source_photo' => $datarray['author-avatar'],
+                               'verb'         => ACTIVITY_POST,
+                               'otype'        => 'item',
+                               'parent'       => $conv_parent,
+
+                       ));
+
+                       // only send one notification
+                       break;
+               }
+       }
+       return;
+}
+
+
+
+
+function diaspora_conversation($importer,$xml,$msg) {
+
+       $a = get_app();
+
+       $guid = notags(unxmlify($xml->guid));
+       $subject = notags(unxmlify($xml->subject));
+       $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
+       $participant_handles = notags(unxmlify($xml->participant_handles));
+       $created_at = datetime_convert('UTC','UTC',notags(unxmlify($xml->created_at)));
+
+       $parent_uri = $diaspora_handle . ':' . $guid;
+       $messages = $xml->message;
+
+       if(! count($messages)) {
+               logger('diaspora_conversation: empty conversation');
+               return;
+       }
+
+       $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
+       if(! $contact) {
+               logger('diaspora_conversation: cannot find contact: ' . $msg['author']);
+               return;
+       }
+
+       if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { 
+               logger('diaspora_conversation: Ignoring this author.');
+               return 202;
+       }
+
+       $conversation = null;
+
+       $c = q("select * from conv where uid = %d and guid = '%s' limit 1",
+               intval($importer['uid']),
+               dbesc($guid)
+       );
+       if(count($c))
+               $conversation = $c[0];
+       else {
+               $r = q("insert into conv (uid,guid,creator,created,updated,subject,recips) values(%d, '%s', '%s', '%s', '%s', '%s', '%s') ",
+                       intval($importer['uid']),
+                       dbesc($guid),
+                       dbesc($diaspora_handle),
+                       dbesc(datetime_convert('UTC','UTC',$created_at)),
+                       dbesc(datetime_convert()),
+                       dbesc($subject),
+                       dbesc($participant_handles)
+               );
+               if($r)
+                       $c = q("select * from conv where uid = %d and guid = '%s' limit 1",
+               intval($importer['uid']),
+           dbesc($guid)
+       );
+           if(count($c))
+           $conversation = $c[0];
+       }
+       if(! $conversation) {
+               logger('diaspora_conversation: unable to create conversation.');
+               return;
+       }
+
+       foreach($messages as $mesg) {
+
+               $reply = 0;
+
+               $msg_guid = notags(unxmlify($mesg->guid));
+               $msg_parent_guid = notags(unxmlify($mesg->parent_guid));
+               $msg_parent_author_signature = notags(unxmlify($mesg->parent_author_signature));
+               $msg_author_signature = notags(unxmlify($mesg->author_signature));
+               $msg_text = unxmlify($mesg->text);
+               $msg_created_at = datetime_convert('UTC','UTC',notags(unxmlify($mesg->created_at)));
+               $msg_diaspora_handle = notags(unxmlify($mesg->diaspora_handle));
+               $msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
+               if($msg_conversation_guid != $guid) {
+                       logger('diaspora_conversation: message conversation guid does not belong to the current conversation. ' . $xml);
+                       continue;
+               }
+
+               $body = diaspora2bb($msg_text);
+               $message_id = $msg_diaspora_handle . ':' . $msg_guid;
+
+               $author_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($mesg->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
+
+               $author_signature = base64_decode($msg_author_signature);
+
+               if(strcasecmp($msg_diaspora_handle,$msg['author']) == 0) {
+                       $person = $contact;
+                       $key = $msg['key'];
+               }
+               else {
+                       $person = find_diaspora_person_by_handle($msg_diaspora_handle); 
+
+                       if(is_array($person) && x($person,'pubkey'))
+                               $key = $person['pubkey'];
+                       else {
+                               logger('diaspora_conversation: unable to find author details');
+                               continue;
+                       }
+               }
+
+               if(! rsa_verify($author_signed_data,$author_signature,$key,'sha256')) {
+                       logger('diaspora_conversation: verification failed.');
+                       continue;
+               }
+
+               if($msg_parent_author_signature) {
+                       $owner_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($mesg->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
+
+                       $parent_author_signature = base64_decode($msg_parent_author_signature);
+
+                       $key = $msg['key'];
+
+                       if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha256')) {
+                               logger('diaspora_conversation: owner verification failed.');
+                               continue;
+                       }
+               }
+
+               $r = q("select id from mail where `uri` = '%s' limit 1",
+                       dbesc($message_id)
+               );
+               if(count($r)) {
+                       logger('diaspora_conversation: duplicate message already delivered.', LOGGER_DEBUG);
+                       continue;
+               }
+
+               q("insert into mail ( `uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`) values ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
+                       intval($importer['uid']),
+                       dbesc($msg_guid),
+                       intval($conversation['id']),
+                       dbesc($person['name']),
+                       dbesc($person['photo']),
+                       dbesc($person['url']),
+                       intval($contact['id']),  
+                       dbesc($subject),
+                       dbesc($body),
+                       0,
+                       0,
+                       dbesc($message_id),
+                       dbesc($parent_uri),
+                       dbesc($msg_created_at)
+               );                      
+
+               q("update conv set updated = '%s' where id = %d limit 1",
+                       dbesc(datetime_convert()),
+                       intval($conversation['id'])
+               );              
+
+               require_once('include/enotify.php');
+               notification(array(                     
+                       'type' => NOTIFY_MAIL,
+                       'notify_flags' => $importer['notify-flags'],
+                       'language' => $importer['language'],
+                       'to_name' => $importer['username'],
+                       'to_email' => $importer['email'],
+                       'uid' =>$importer['importer_uid'],
+                       'item' => array('subject' => $subject, 'body' => $body),
+                       'source_name' => $person['name'],
+                       'source_link' => $person['url'],
+                       'source_photo' => $person['thumb'],
+                       'verb' => ACTIVITY_POST,
+                       'otype' => 'mail'
+               ));
+       }       
+
+       return;
+}
+
+function diaspora_message($importer,$xml,$msg) {
+
+       $a = get_app();
+
+       $msg_guid = notags(unxmlify($xml->guid));
+       $msg_parent_guid = notags(unxmlify($xml->parent_guid));
+       $msg_parent_author_signature = notags(unxmlify($xml->parent_author_signature));
+       $msg_author_signature = notags(unxmlify($xml->author_signature));
+       $msg_text = unxmlify($xml->text);
+       $msg_created_at = datetime_convert('UTC','UTC',notags(unxmlify($xml->created_at)));
+       $msg_diaspora_handle = notags(unxmlify($xml->diaspora_handle));
+       $msg_conversation_guid = notags(unxmlify($xml->conversation_guid));
+
+       $parent_uri = $diaspora_handle . ':' . $msg_parent_guid;
+       $contact = diaspora_get_contact_by_handle($importer['uid'],$msg_diaspora_handle);
+       if(! $contact) {
+               logger('diaspora_message: cannot find contact: ' . $msg_diaspora_handle);
+               return;
+       }
+
+       if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { 
+               logger('diaspora_message: Ignoring this author.');
+               return 202;
+       }
+
+       $conversation = null;
+
+       $c = q("select * from conv where uid = %d and guid = '%s' limit 1",
+               intval($importer['uid']),
+               dbesc($msg_conversation_guid)
+       );
+       if(count($c))
+               $conversation = $c[0];
+       else {
+               logger('diaspora_message: conversation not available.');
+               return;
+       }
+
+       $reply = 0;
+                       
+       $body = diaspora2bb($msg_text);
+       $message_id = $msg_diaspora_handle . ':' . $msg_guid;
+
+       $author_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($xml->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
+
+
+       $author_signature = base64_decode($msg_author_signature);
+
+       $person = find_diaspora_person_by_handle($msg_diaspora_handle); 
+       if(is_array($person) && x($person,'pubkey'))
+               $key = $person['pubkey'];
+       else {
+               logger('diaspora_message: unable to find author details');
+               return;
+       }
+
+       if(! rsa_verify($author_signed_data,$author_signature,$key,'sha256')) {
+               logger('diaspora_message: verification failed.');
+               return;
+       }
+
+       $r = q("select id from mail where `uri` = '%s' and uid = %d limit 1",
+               dbesc($message_id),
+               intval($importer['uid'])
+       );
+       if(count($r)) {
+               logger('diaspora_message: duplicate message already delivered.', LOGGER_DEBUG);
+               return;
+       }
+
+       q("insert into mail ( `uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`) values ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
+               intval($importer['uid']),
+               dbesc($msg_guid),
+               intval($conversation['id']),
+               dbesc($person['name']),
+               dbesc($person['photo']),
+               dbesc($person['url']),
+               intval($contact['id']),  
+               dbesc($conversation['subject']),
+               dbesc($body),
+               0,
+               1,
+               dbesc($message_id),
+               dbesc($parent_uri),
+               dbesc($msg_created_at)
+       );                      
+
+       q("update conv set updated = '%s' where id = %d limit 1",
+               dbesc(datetime_convert()),
+               intval($conversation['id'])
+       );              
+       
        return;
 }
 
+
 function diaspora_photo($importer,$xml,$msg) {
 
        $a = get_app();
+
+       logger('diaspora_photo: init',LOGGER_DEBUG);
+
        $remote_photo_path = notags(unxmlify($xml->remote_photo_path));
 
        $remote_photo_name = notags(unxmlify($xml->remote_photo_name));
@@ -1007,12 +1512,15 @@ function diaspora_photo($importer,$xml,$msg) {
 
        $created_at = notags(unxmlify($xml_created_at));
 
+       logger('diaspora_photo: status_message_guid: ' . $status_message_guid, LOGGER_DEBUG);
 
        $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
-       if(! $contact)
+       if(! $contact) {
+               logger('diaspora_photo: contact record not found: ' . $msg['author'] . ' handle: ' . $diaspora_handle);
                return;
+       }
 
-       if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { 
+       if(! diaspora_post_allow($importer,$contact)) {
                logger('diaspora_photo: Ignoring this author.');
                return 202;
        }
@@ -1025,11 +1533,12 @@ function diaspora_photo($importer,$xml,$msg) {
                logger('diaspora_photo: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid);
                return;
        }
+
        $parent_item = $r[0];
 
        $link_text = '[img]' . $remote_photo_path . $remote_photo_name . '[/img]' . "\n";
 
-       $link_text = scale_diaspora_images($link_text);
+       $link_text = scale_external_images($link_text);
 
        if(strpos($parent_item['body'],$link_text) === false) {
                $r = q("update item set `body` = '%s', `visible` = 1 where `id` = %d and `uid` = %d limit 1",
@@ -1068,7 +1577,7 @@ function diaspora_like($importer,$xml,$msg) {
                return;
        }
 
-       if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { 
+       if(! diaspora_post_allow($importer,$contact)) {
                logger('diaspora_like: Ignoring this author.');
                return 202;
        }
@@ -1234,6 +1743,7 @@ EOT;
 
 function diaspora_retraction($importer,$xml) {
 
+
        $guid = notags(unxmlify($xml->guid));
        $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
        $type = notags(unxmlify($xml->type));
@@ -1243,10 +1753,11 @@ function diaspora_retraction($importer,$xml) {
                return;
 
        if($type === 'Person') {
+               require_once('include/Contact.php');
                contact_remove($contact['id']);
        }
        elseif($type === 'Post') {
-               $r = q("select * from item where guid = '%s' and uid = %d limit 1",
+               $r = q("select * from item where guid = '%s' and uid = %d and not file like '%%[%%' limit 1",
                        dbesc('guid'),
                        intval($importer['uid'])
                );
@@ -1264,6 +1775,56 @@ function diaspora_retraction($importer,$xml) {
        // NOTREACHED
 }
 
+function diaspora_signed_retraction($importer,$xml,$msg) {
+
+
+       $guid = notags(unxmlify($xml->target_guid));
+       $diaspora_handle = notags(unxmlify($xml->sender_handle));
+       $type = notags(unxmlify($xml->target_type));
+       $sig = notags(unxmlify($xml->target_author_signature));
+
+       $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
+       if(! $contact) {
+               logger('diaspora_signed_retraction: no contact');
+               return;
+       }
+
+       // this may not yet work for comments. Need to see how the relaying works
+       // and figure out who signs it.
+
+
+       $signed_data = $guid . ';' . $type ;
+
+       $sig = base64_decode($sig);
+
+       $key = $msg['key'];
+
+       if(! rsa_verify($signed_data,$sig,$key,'sha256')) {
+               logger('diaspora_signed_retraction: owner verification failed.' . print_r($msg,true));
+               return;
+       }
+
+       if($type === 'StatusMessage') {
+               $r = q("select * from item where guid = '%s' and uid = %d and not file like '%%[%%' limit 1",
+                       dbesc($guid),
+                       intval($importer['uid'])
+               );
+               if(count($r)) {
+                       if(link_compare($r[0]['author-link'],$contact['url'])) {
+                               q("update item set `deleted` = 1, `changed` = '%s' where `id` = %d limit 1",
+                                       dbesc(datetime_convert()),                      
+                                       intval($r[0]['id'])
+                               );
+                       }
+               }
+       }
+       else
+               logger('diaspora_signed_retraction: unknown type: ' . $type);
+
+       return 202;
+       // NOTREACHED
+}
+
 function diaspora_profile($importer,$xml) {
 
        $a = get_app();
@@ -1298,6 +1859,15 @@ function diaspora_profile($importer,$xml) {
 
        $birthday = datetime_convert('UTC','UTC',$birthday,'Y-m-d');
 
+       // this is to prevent multiple birthday notifications in a single year
+       // if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
+
+       if(substr($birthday,5) === substr($contact['bd'],5))
+               $birthday = $contact['bd'];
+
+       // TODO: update name on item['author-name'] if the name changed. See consume_feed()
+       // Not doing this currently because D* protocol is scheduled for revision soon. 
+
        $r = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s', `avatar-date` = '%s' , `bd` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
                dbesc($name),
                dbesc(datetime_convert()),
@@ -1326,27 +1896,6 @@ function diaspora_profile($importer,$xml) {
 
 }
 
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
 function diaspora_share($me,$contact) {
        $a = get_app();
        $myaddr = $me['nickname'] . '@' .  substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
@@ -1391,6 +1940,7 @@ function diaspora_send_status($item,$owner,$contact,$public_batch = false) {
 
        $images = array();
 
+       $title = $item['title'];
        $body = $item['body'];
 
 /*
@@ -1415,9 +1965,12 @@ function diaspora_send_status($item,$owner,$contact,$public_batch = false) {
                }
        }       
 */
-
        $body = xmlify(html_entity_decode(bb2diaspora($body)));
 
+       if(strlen($title))
+               $body = xmlify('**' . html_entity_decode($title) . '**' . "\n") . $body;
+
+
        if($item['attach']) {
                $cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism',$item['attach'],$matches,PREG_SET_ORDER);
                if(cnt) {
@@ -1659,11 +2212,14 @@ function diaspora_send_retraction($item,$owner,$contact,$public_batch = false) {
        $a = get_app();
        $myaddr = $owner['nickname'] . '@' .  substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
 
-       $tpl = get_markup_template('diaspora_retract.tpl');
+       $signed_text = $item['guid'] . ';' . 'StatusMessage';
+
+       $tpl = get_markup_template('diaspora_signed_retract.tpl');
        $msg = replace_macros($tpl, array(
                '$guid'   => $item['guid'],
-               '$type'   => 'Post',
-               '$handle' => $myaddr
+               '$type'   => 'StatusMessage',
+               '$handle' => $myaddr,
+               '$signature' => base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256'))
        ));
 
        $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
@@ -1671,21 +2227,117 @@ function diaspora_send_retraction($item,$owner,$contact,$public_batch = false) {
        return(diaspora_transmit($owner,$contact,$slap,$public_batch));
 }
 
+function diaspora_send_mail($item,$owner,$contact) {
+
+       $a = get_app();
+       $myaddr = $owner['nickname'] . '@' .  substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
+
+       $r = q("select * from conv where id = %d and uid = %d limit 1",
+               intval($item['convid']),
+               intval($item['uid'])
+       );
+
+       if(! count($r)) {
+               logger('diaspora_send_mail: conversation not found.');
+               return;
+       }
+       $cnv = $r[0];
+
+       $conv = array(
+               'guid' => xmlify($cnv['guid']),
+               'subject' => xmlify($cnv['subject']),
+               'created_at' => xmlify(datetime_convert('UTC','UTC',$cnv['created'],'Y-m-d H:i:s \U\T\C')),
+               'diaspora_handle' => xmlify($cnv['creator']),
+               'participant_handles' => xmlify($cnv['recips'])
+       );
+
+       $body = bb2diaspora($item['body']);
+       $created = datetime_convert('UTC','UTC',$item['created'],'Y-m-d H:i:s \U\T\C');
+       $signed_text =  $item['guid'] . ';' . $cnv['guid'] . ';' . $body .  ';' 
+               . $created . ';' . $myaddr . ';' . $cnv['guid'];
+
+       $sig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256'));
+
+       $msg = array(
+               'guid' => xmlify($item['guid']),
+               'parent_guid' => xmlify($cnv['guid']),
+               'parent_author_signature' => (($item['reply']) ? null : xmlify($sig)),
+               'author_signature' => xmlify($sig),
+               'text' => xmlify($body),
+               'created_at' => xmlify($created),
+               'diaspora_handle' => xmlify($myaddr),
+               'conversation_guid' => xmlify($cnv['guid'])
+       );
+
+       if($item['reply']) {
+               $tpl = get_markup_template('diaspora_message.tpl');
+               $xmsg = replace_macros($tpl, array('$msg' => $msg));
+       }
+       else {
+               $conv['messages'] = array($msg);
+               $tpl = get_markup_template('diaspora_conversation.tpl');
+               $xmsg = replace_macros($tpl, array('$conv' => $conv));
+       }
+
+       logger('diaspora_conversation: ' . print_r($xmsg,true), LOGGER_DATA);
+
+       $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($xmsg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],false)));
+
+       return(diaspora_transmit($owner,$contact,$slap,false));
 
 
+}
+
 function diaspora_transmit($owner,$contact,$slap,$public_batch) {
 
+       $enabled = intval(get_config('system','diaspora_enabled'));
+       if(! $enabled) {
+               return 200;
+       }
+
        $a = get_app();
        $logid = random_string(4);
-       logger('diaspora_transmit: ' . $logid . ' ' . (($public_batch) ? $contact['batch'] : $contact['notify']));
-       post_url((($public_batch) ? $contact['batch'] : $contact['notify']) . '/',$slap);
-       $return_code = $a->get_curl_code();
+       $dest_url = (($public_batch) ? $contact['batch'] : $contact['notify']);
+       if(! $dest_url) {
+               logger('diaspora_transmit: no url for contact: ' . $contact['id'] . ' batch mode =' . $public_batch);
+               return 0;
+       } 
+
+       logger('diaspora_transmit: ' . $logid . ' ' . $dest_url);
+
+       if(was_recently_delayed($contact['id'])) {
+               $return_code = 0;
+       }
+       else {
+               if(! intval(get_config('system','diaspora_test'))) {
+                       post_url($dest_url . '/', $slap);
+                       $return_code = $a->get_curl_code();
+               }
+               else {
+                       logger('diaspora_transmit: test_mode');
+                       return 200;
+               }
+       }
+       
        logger('diaspora_transmit: ' . $logid . ' returns: ' . $return_code);
 
-       if((! $return_code) || (($curl_stat == 503) && (stristr($a->get_curl_headers(),'retry-after')))) {
+       if((! $return_code) || (($return_code == 503) && (stristr($a->get_curl_headers(),'retry-after')))) {
                logger('diaspora_transmit: queue message');
-               // queue message for redelivery
-               add_to_queue($contact['id'],NETWORK_DIASPORA,$slap,$public_batch);
+
+               $r = q("SELECT id from queue where cid = %d and network = '%s' and content = '%s' and batch = %d limit 1",
+                       intval($contact['id']),
+                       dbesc(NETWORK_DIASPORA),
+                       dbesc($slap),
+                       intval($public_batch)
+               );
+               if(count($r)) {
+                       logger('diaspora_transmit: add_to_queue ignored - identical item already in queue');
+               }
+               else {
+                       // queue message for redelivery
+                       add_to_queue($contact['id'],NETWORK_DIASPORA,$slap,$public_batch);
+               }
        }