]> git.mxchange.org Git - friendica.git/blobdiff - include/diaspora.php
Diaspora: The "new friend" notification now respects the corresponding setting/"new...
[friendica.git] / include / diaspora.php
index 6a8d4a3581936fe6a3d8e9586eaabf09cbac0e62..9edda5a9efce0f39193a6533ddeda899e4671822 100755 (executable)
@@ -7,7 +7,6 @@ require_once('include/contact_selectors.php');
 require_once('include/queue_fn.php');
 require_once('include/lock.php');
 
-
 function diaspora_dispatch_public($msg) {
 
        $enabled = intval(get_config('system','diaspora_enabled'));
@@ -16,7 +15,9 @@ function diaspora_dispatch_public($msg) {
                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 AND `account_removed` = 0 ",
+       $r = q("SELECT `user`.* FROM `user` WHERE `user`.`uid` IN
+               ( SELECT `contact`.`uid` FROM `contact` WHERE `contact`.`network` = '%s' AND `contact`.`addr` = '%s' )
+               AND `account_expired` = 0 AND `account_removed` = 0 ",
                dbesc(NETWORK_DIASPORA),
                dbesc($msg['author'])
        );
@@ -32,7 +33,7 @@ function diaspora_dispatch_public($msg) {
 
 
 
-function diaspora_dispatch($importer,$msg) {
+function diaspora_dispatch($importer,$msg,$attempt=1) {
 
        $ret = 0;
 
@@ -88,7 +89,7 @@ function diaspora_dispatch($importer,$msg) {
                $ret = diaspora_signed_retraction($importer,$xmlbase->relayable_retraction,$msg);
        }
        elseif($xmlbase->photo) {
-               $ret = diaspora_photo($importer,$xmlbase->photo,$msg);
+               $ret = diaspora_photo($importer,$xmlbase->photo,$msg,$attempt);
        }
        elseif($xmlbase->conversation) {
                $ret = diaspora_conversation($importer,$xmlbase->conversation,$msg);
@@ -261,7 +262,7 @@ function diaspora_pubmsg_build($msg,$user,$contact,$prvkey,$pubkey) {
 
        logger('diaspora_pubmsg_build: ' . $msg, LOGGER_DATA);
 
-       
+
        $handle = $user['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
 
 //     $b64_data = base64_encode($msg);
@@ -275,7 +276,7 @@ function diaspora_pubmsg_build($msg,$user,$contact,$prvkey,$pubkey) {
        $encoding = 'base64url';
        $alg = 'RSA-SHA256';
 
-       $signable_data = $data  . '.' . base64url_encode($type) . '.' 
+       $signable_data = $data  . '.' . base64url_encode($type) . '.'
                . base64url_encode($encoding) . '.' . base64url_encode($alg) ;
 
        $signature = rsa_sign($signable_data,$prvkey);
@@ -328,7 +329,7 @@ function diaspora_msg_build($msg,$user,$contact,$prvkey,$pubkey,$public = false)
        $b_outer_aes_key = base64_encode($outer_aes_key);
        $outer_iv = random_string(16);
        $b_outer_iv = base64_encode($outer_iv);
-       
+
        $handle = $user['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
 
        $padded_data = pkcs5_pad($msg,16);
@@ -344,7 +345,7 @@ function diaspora_msg_build($msg,$user,$contact,$prvkey,$pubkey,$public = false)
        $encoding = 'base64url';
        $alg = 'RSA-SHA256';
 
-       $signable_data = $data  . '.' . base64url_encode($type) . '.' 
+       $signable_data = $data  . '.' . base64url_encode($type) . '.'
                . base64url_encode($encoding) . '.' . base64url_encode($alg) ;
 
        $signature = rsa_sign($signable_data,$prvkey);
@@ -424,7 +425,7 @@ function diaspora_decode($importer,$xml) {
        else {
 
                $encrypted_header = json_decode(base64_decode($children->encrypted_header));
-       
+
                $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
                $ciphertext = base64_decode($encrypted_header->ciphertext);
 
@@ -484,7 +485,7 @@ function diaspora_decode($importer,$xml) {
                $base = $dom->env;
        elseif($dom->data)
                $base = $dom;
-       
+
        if(! $base) {
                logger('mod-diaspora: unable to locate salmon data in xml ');
                http_status_exit(400);
@@ -557,7 +558,7 @@ function diaspora_decode($importer,$xml) {
 
 }
 
-       
+
 function diaspora_request($importer,$xml) {
 
        $a = get_app();
@@ -567,7 +568,7 @@ function diaspora_request($importer,$xml) {
 
        if(! $sender_handle || ! $recipient_handle)
                return;
-        
+
        $contact = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
 
        if($contact) {
@@ -576,7 +577,7 @@ function diaspora_request($importer,$xml) {
                // That makes us friends.
 
                if($contact['rel'] == CONTACT_IS_FOLLOWER && $importer['page-flags'] != PAGE_COMMUNITY) {
-                       q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
+                       q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
                                intval(CONTACT_IS_FRIEND),
                                intval($contact['id']),
                                intval($importer['uid'])
@@ -588,7 +589,7 @@ function diaspora_request($importer,$xml) {
                        intval($importer['uid'])
                );
 
-               if((count($r)) && (! $r[0]['hide-friends']) && (! $contact['hidden'])) {
+               if((count($r)) && (!$r[0]['hide-friends']) && (!$contact['hidden']) && intval(get_pconfig($importer['uid'],'system','post_newfriend'))) {
                        require_once('include/items.php');
 
                        $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
@@ -612,7 +613,7 @@ function diaspora_request($importer,$xml) {
                                $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]' . $contact['thumb'] . '[/img][/url]';
@@ -640,7 +641,7 @@ function diaspora_request($importer,$xml) {
 
                return;
        }
-       
+
        $ret = find_diaspora_person_by_handle($sender_handle);
 
 
@@ -671,7 +672,7 @@ function diaspora_request($importer,$xml) {
                1,
                2
        );
-                
+
        // find the contact record we just created
 
        $contact_record = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
@@ -692,7 +693,7 @@ function diaspora_request($importer,$xml) {
        if($importer['page-flags'] == PAGE_NORMAL) {
 
                $hash = random_string() . (string) time();   // Generate a confirm_key
-       
+
                $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime` )
                        VALUES ( %d, %d, %d, %d, '%s', '%s', '%s' )",
                        intval($importer['uid']),
@@ -711,8 +712,8 @@ function diaspora_request($importer,$xml) {
                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), 
+
+               // 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.
 
@@ -731,7 +732,7 @@ function diaspora_request($importer,$xml) {
                        `avatar-date` = '%s', 
                        `blocked` = 0, 
                        `pending` = 0
-                       WHERE `id` = %d LIMIT 1
+                       WHERE `id` = %d
                        ",
                        dbesc($photos[0]),
                        dbesc($photos[1]),
@@ -752,7 +753,21 @@ function diaspora_request($importer,$xml) {
 }
 
 function diaspora_post_allow($importer,$contact) {
-       if(($contact['blocked']) || ($contact['readonly']))
+
+       // perhaps we were already sharing with this person. Now they're sharing with us.
+       // That makes us friends.
+       // Normally this should have handled by getting a request - but this could get lost
+       if($contact['rel'] == CONTACT_IS_FOLLOWER && $importer['page-flags'] != PAGE_COMMUNITY) {
+               q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
+                       intval(CONTACT_IS_FRIEND),
+                       intval($contact['id']),
+                       intval($importer['uid'])
+               );
+               $contact['rel'] = CONTACT_IS_FRIEND;
+               logger('diaspora_post_allow: defining user '.$contact["nick"].' as friend');
+       }
+
+       if(($contact['blocked']) || ($contact['readonly']) || ($contact['archive']))
                return false;
        if($contact['rel'] == CONTACT_IS_SHARING || $contact['rel'] == CONTACT_IS_FRIEND)
                return true;
@@ -811,6 +826,9 @@ function diaspora_post($importer,$xml,$msg) {
 
        $body = diaspora2bb($xml->raw_message);
 
+       // Add OEmbed and other information to the body
+       $body = add_page_info_to_body($body, false, true);
+
        $datarray = array();
 
        $str_tags = '';
@@ -845,18 +863,23 @@ function diaspora_post($importer,$xml,$msg) {
                foreach($matches as $mtch) {
                        if(strlen($str_tags))
                                $str_tags .= ',';
-                       $str_tags .= '@[url=' . $mtch[1] . '[/url]';    
+                       $str_tags .= '@[url=' . $mtch[1] . '[/url]';
                }
        }
 
+       $plink = 'https://'.substr($diaspora_handle,strpos($diaspora_handle,'@')+1).'/posts/'.$guid;
+
        $datarray['uid'] = $importer['uid'];
        $datarray['contact-id'] = $contact['id'];
        $datarray['wall'] = 0;
+       $datarray['network'] = NETWORK_DIASPORA;
+       $datarray['verb'] = ACTIVITY_POST;
        $datarray['guid'] = $guid;
        $datarray['uri'] = $datarray['parent-uri'] = $message_id;
-       $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
+       $datarray['changed'] = $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
        $datarray['private'] = $private;
        $datarray['parent'] = 0;
+       $datarray['plink'] = $plink;
        $datarray['owner-name'] = $contact['name'];
        $datarray['owner-link'] = $contact['url'];
        //$datarray['owner-avatar'] = $contact['thumb'];
@@ -874,17 +897,121 @@ function diaspora_post($importer,$xml,$msg) {
 
        $message_id = item_store($datarray);
 
-       if($message_id) {
-               q("update item set plink = '%s' where id = %d limit 1",
-                       dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
-                       intval($message_id)
-               );
-       }
+       //if($message_id) {
+       //      q("update item set plink = '%s' where id = %d",
+       //              dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
+       //              intval($message_id)
+       //      );
+       //}
 
        return;
 
 }
 
+function diaspora_fetch_message($guid, $server, $level = 0) {
+
+       if ($level > 5)
+               return false;
+
+       $a = get_app();
+
+       // This will not work if the server is not a Diaspora server
+       $source_url = $server.'/p/'.$guid.'.xml';
+       $x = fetch_url($source_url);
+       if(!$x)
+               return false;
+
+       $x = str_replace(array('<activity_streams-photo>','</activity_streams-photo>'),array('<asphoto>','</asphoto>'),$x);
+       $source_xml = parse_xml_string($x,false);
+
+       $item = array();
+       $item["app"] = 'Diaspora';
+       $item["guid"] = $guid;
+       $body = "";
+
+       if ($source_xml->post->status_message->created_at)
+               $item["created"] = unxmlify($source_xml->post->status_message->created_at);
+
+       if ($source_xml->post->status_message->provider_display_name)
+               $item["app"] = unxmlify($source_xml->post->status_message->provider_display_name);
+
+       if ($source_xml->post->status_message->diaspora_handle)
+               $item["author"] = unxmlify($source_xml->post->status_message->diaspora_handle);
+
+       if ($source_xml->post->status_message->guid)
+               $item["guid"] = unxmlify($source_xml->post->status_message->guid);
+
+       $item["private"] = (unxmlify($source_xml->post->status_message->public) == 'false');
+
+       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";
+               $body = scale_external_images($body,false);
+       } elseif($source_xml->post->asphoto->image_url) {
+               $body = '[img]' . notags(unxmlify($source_xml->post->asphoto->image_url)) . '[/img]' . "\n";
+               $body = scale_external_images($body);
+       } elseif($source_xml->post->status_message) {
+               $body = diaspora2bb($source_xml->post->status_message->raw_message);
+
+               // Checking for embedded pictures
+               if($source_xml->post->status_message->photo->remote_photo_path AND
+                       $source_xml->post->status_message->photo->remote_photo_name) {
+
+                       $remote_photo_path = notags(unxmlify($source_xml->post->status_message->photo->remote_photo_path));
+                       $remote_photo_name = notags(unxmlify($source_xml->post->status_message->photo->remote_photo_name));
+
+                       $body = '[img]'.$remote_photo_path.$remote_photo_name.'[/img]'."\n".$body;
+
+                       logger('embedded picture link found: '.$body, LOGGER_DEBUG);
+               }
+
+               $body = scale_external_images($body);
+
+               // Add OEmbed and other information to the body
+               $body = add_page_info_to_body($body, false, true);
+       } elseif($source_xml->post->reshare) {
+               // Reshare of a reshare
+               return diaspora_fetch_message($source_xml->post->reshare->root_guid, $server, ++$level);
+       } else {
+               // Maybe it is a reshare of a photo that will be delivered at a later time (testing)
+               logger('no content found: '.print_r($source_xml,true));
+               $body = "";
+       }
+
+       if ($body == "")
+               return false;
+
+       $item["tag"] = '';
+
+       $tags = get_tags($body);
+
+       if(count($tags)) {
+               foreach($tags as $tag) {
+                       if(strpos($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=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
+                               if(strlen($item["tag"]))
+                                       $item["tag"] .= ',';
+                               $item["tag"] .= '#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
+                               continue;
+                       }
+               }
+       }
+
+       $item["body"] = $body;
+       return $item;
+}
+
 function diaspora_reshare($importer,$xml,$msg) {
 
        logger('diaspora_reshare: init: ' . print_r($xml,true));
@@ -922,50 +1049,64 @@ function diaspora_reshare($importer,$xml,$msg) {
        $orig_author = notags(unxmlify($xml->root_diaspora_id));
        $orig_guid = notags(unxmlify($xml->root_guid));
 
-       $source_url = 'https://' . substr($orig_author,strpos($orig_author,'@')+1) . '/p/' . $orig_guid . '.xml';
-       $x = fetch_url($source_url);
-       if(! $x)
-               $x = fetch_url(str_replace('https://','http://',$source_url));
-       if(! $x) {
-               logger('diaspora_reshare: unable to fetch source url ' . $source_url);
-               return;
-       }
-       logger('diaspora_reshare: source: ' . $x);
+       $create_original_post = false;
 
-       $x = str_replace(array('<activity_streams-photo>','</activity_streams-photo>'),array('<asphoto>','</asphoto>'),$x);
-       $source_xml = parse_xml_string($x,false);
+       // Do we already have this item?
+       $r = q("SELECT `body`, `tag`, `app`, `author-link`, `plink` FROM `item` WHERE `guid` = '%s' AND `visible` AND NOT `deleted` AND `body` != '' LIMIT 1",
+               dbesc($orig_guid),
+               dbesc(NETWORK_DIASPORA)
+       );
+       if(count($r)) {
+               logger('reshared message '.orig_guid." reshared by ".$guid.' already exists on system: '.$orig_url);
 
-       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";
-               $body = scale_external_images($body,false);
-       }
-       elseif($source_xml->post->asphoto->image_url) {
-               $body = '[img]' . notags(unxmlify($source_xml->post->asphoto->image_url)) . '[/img]' . "\n";
-               $body = scale_external_images($body);
+               // Maybe it is already a reshared item?
+               // Then refetch the content, since there can be many side effects with reshared posts from other networks or reshares from reshares
+               require_once('include/api.php');
+               if (api_share_as_retweet($r[0]))
+                       $r = array();
+               else
+                       $orig_url = $a->get_baseurl().'/display/'.$orig_guid;
        }
-       elseif($source_xml->post->status_message) {
-               $body = diaspora2bb($source_xml->post->status_message->raw_message);
-               $body = scale_external_images($body);
 
-       }
-       else {
-               logger('diaspora_reshare: no reshare content found: ' . print_r($source_xml,true));
-               return;
-       }
-       if(! $body) {
-               logger('diaspora_reshare: empty body: source= ' . $x);
-               return;
-       }
+       if (!count($r)) {
+               $body = "";
+               $str_tags = "";
+               $app = "";
 
-       $person = find_diaspora_person_by_handle($orig_author);
+               $orig_url = 'https://'.substr($orig_author,strpos($orig_author,'@')+1).'/posts/'.$orig_guid;
 
-       if(is_array($person) && x($person,'name') && x($person,'url'))
-               $details = '[url=' . $person['url'] . ']' . $person['name'] . '[/url]';
-       else
-               $details = $orig_author;
-       
-       $prefix = html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8') . $details . "\n"; 
+               $server = 'https://'.substr($orig_author,strpos($orig_author,'@')+1);
+               logger('1st try: reshared message '.$orig_guid." reshared by ".$guid.' will be fetched from original server: '.$server);
+               $item = diaspora_fetch_message($orig_guid, $server);
+
+               if (!$item) {
+                       $server = 'https://'.substr($diaspora_handle,strpos($diaspora_handle,'@')+1);
+                       logger('2nd try: reshared message '.$orig_guid." reshared by ".$guid." will be fetched from sharer's server: ".$server);
+                       $item = diaspora_fetch_message($orig_guid, $server);
+               }
+               if (!$item) {
+                       $server = 'http://'.substr($orig_author,strpos($orig_author,'@')+1);
+                       logger('3rd try: reshared message '.$orig_guid." reshared by ".$guid.' will be fetched from original server: '.$server);
+                       $item = diaspora_fetch_message($orig_guid, $server);
+               }
+               if (!$item) {
+                       $server = 'http://'.substr($diaspora_handle,strpos($diaspora_handle,'@')+1);
+                       logger('4th try: reshared message '.$orig_guid." reshared by ".$guid." will be fetched from sharer's server: ".$server);
+                       $item = diaspora_fetch_message($orig_guid, $server);
+               }
+
+               if ($item) {
+                       $body = $item["body"];
+                       $str_tags = $item["tag"];
+                       $app = $item["app"];
+                       $orig_created = $item["created"];
+                       $orig_author = $item["author"];
+                       $orig_guid = $item["guid"];
+                       //$create_original_post = ($body != "");
+               }
+       }
 
+       $person = find_diaspora_person_by_handle($orig_author);
 
        // allocate a guid on our system - we aren't fixing any collisions.
        // we're ignoring them
@@ -984,63 +1125,71 @@ function diaspora_reshare($importer,$xml,$msg) {
 
        $datarray = array();
 
-       $str_tags = '';
-
-       $tags = get_tags($body);
+       $plink = 'https://'.substr($diaspora_handle,strpos($diaspora_handle,'@')+1).'/posts/'.$guid;
 
-       if(count($tags)) {
-               foreach($tags as $tag) {
-                       if(strpos($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=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
-                               if(strlen($str_tags))
-                                       $str_tags .= ',';
-                               $str_tags .= '#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
-                               continue;
-                       }
-               }
-       }
-       
        $datarray['uid'] = $importer['uid'];
        $datarray['contact-id'] = $contact['id'];
        $datarray['wall'] = 0;
+       $datarray['network']  = NETWORK_DIASPORA;
        $datarray['guid'] = $guid;
        $datarray['uri'] = $datarray['parent-uri'] = $message_id;
-       $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
+       $datarray['changed'] = $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
        $datarray['private'] = $private;
        $datarray['parent'] = 0;
+       $datarray['plink'] = $plink;
        $datarray['owner-name'] = $contact['name'];
        $datarray['owner-link'] = $contact['url'];
        $datarray['owner-avatar'] = ((x($contact,'thumb')) ? $contact['thumb'] : $contact['photo']);
-       $datarray['author-name'] = $person['name']; // Let reshared messages look like wall-to-wall posts
-       $datarray['author-link'] = $person['url']; // we have to set an additional value in the item in the future
-       // $datarray['author-avatar'] = $person['thumb']; // to distinct the wall-to-wall-posts from reshared/repeated messages
-       $datarray['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
-       // $datarray['body'] = $prefix . $body;
-       $datarray['body'] = $body;
+       if (!intval(get_config('system','wall-to-wall_share'))) {
+               $prefix = "[share author='".str_replace(array("'", "[", "]"), array("&#x27;", "&#x5B;", "&#x5D;"),$person['name']).
+                               "' profile='".$person['url'].
+                               "' avatar='".((x($person,'thumb')) ? $person['thumb'] : $person['photo']).
+                               "' link='".str_replace(array("'", "[", "]"), array("&#x27;", "&#x5B;", "&#x5D;"),$orig_url)."']";
+               $datarray['author-name'] = $contact['name'];
+               $datarray['author-link'] = $contact['url'];
+               $datarray['author-avatar'] = $contact['thumb'];
+               $datarray['body'] = $prefix.$body."[/share]";
+       } else {
+               // Let reshared messages look like wall-to-wall posts
+               $datarray['author-name'] = $person['name'];
+               $datarray['author-link'] = $person['url'];
+               $datarray['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
+               $datarray['body'] = $body;
+       }
+
        $datarray['tag'] = $str_tags;
-       $datarray['app']  = 'Diaspora';
+       $datarray['app']  = $app;
 
-       $message_id = item_store($datarray);
+       // if empty content it might be a photo that hasn't arrived yet. If a photo arrives, we'll make it visible. (testing)
+       $datarray['visible'] = ((strlen($body)) ? 1 : 0);
 
-       if($message_id) {
-               q("update item set plink = '%s' where id = %d limit 1",
-                       dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
-                       intval($message_id)
-               );
+       // Store the original item of a reshare
+       // Deactivated by now. Items without a matching contact can't be shown via "mod/display.php" by now.
+       if ($create_original_post) {
+               $datarray2 = $datarray;
+
+               $datarray2['uid'] = 0;
+               $datarray2['contact-id'] = 0;
+               $datarray2['guid'] = $orig_guid;
+               $datarray2['uri'] = $datarray2['parent-uri'] = $orig_author.':'.$orig_guid;
+               $datarray2['changed'] = $datarray2['created'] = $datarray2['edited'] = datetime_convert('UTC','UTC',$orig_created);
+               $datarray2['plink'] = 'https://'.substr($orig_author,strpos($orig_author,'@')+1).'/posts/'.$orig_guid;
+
+               $datarray2['author-name'] = $person['name'];
+               $datarray2['author-link'] = $person['url'];
+               $datarray2['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
+               $datarray2['owner-name'] = $datarray2['author-name'];
+               $datarray2['owner-link'] = $datarray2['author-link'];
+               $datarray2['owner-avatar'] = $datarray2['author-avatar'];
+               $datarray2['body'] = $body;
+
+               $message_id = item_store($datarray2);
+
+               logger("Store original item ".$orig_guid." under message id ".$message_id);
        }
 
+       $message_id = item_store($datarray);
+
        return;
 
 }
@@ -1106,17 +1255,20 @@ function diaspora_asphoto($importer,$xml,$msg) {
                return;
        }
 
+       $plink = 'https://'.substr($diaspora_handle,strpos($diaspora_handle,'@')+1).'/posts/'.$guid;
+
        $datarray = array();
 
-       
        $datarray['uid'] = $importer['uid'];
        $datarray['contact-id'] = $contact['id'];
        $datarray['wall'] = 0;
+       $datarray['network']  = NETWORK_DIASPORA;
        $datarray['guid'] = $guid;
        $datarray['uri'] = $datarray['parent-uri'] = $message_id;
-       $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
+       $datarray['changed'] = $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
        $datarray['private'] = $private;
        $datarray['parent'] = 0;
+       $datarray['plink'] = $plink;
        $datarray['owner-name'] = $contact['name'];
        $datarray['owner-link'] = $contact['url'];
        //$datarray['owner-avatar'] = $contact['thumb'];
@@ -1125,17 +1277,17 @@ function diaspora_asphoto($importer,$xml,$msg) {
        $datarray['author-link'] = $contact['url'];
        $datarray['author-avatar'] = $contact['thumb'];
        $datarray['body'] = $body;
-       
+
        $datarray['app']  = 'Diaspora/Cubbi.es';
 
        $message_id = item_store($datarray);
 
-       if($message_id) {
-               q("update item set plink = '%s' where id = %d limit 1",
-                       dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
-                       intval($message_id)
-               );
-       }
+       //if($message_id) {
+       //      q("update item set plink = '%s' where id = %d",
+       //              dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
+       //              intval($message_id)
+       //      );
+       //}
 
        return;
 
@@ -1238,7 +1390,7 @@ function diaspora_comment($importer,$xml,$msg) {
        if(strcasecmp($diaspora_handle,$msg['author']) == 0)
                $person = $contact;
        else {
-               $person = find_diaspora_person_by_handle($diaspora_handle);     
+               $person = find_diaspora_person_by_handle($diaspora_handle);
 
                if(! is_array($person)) {
                        logger('diaspora_comment: unable to find author details');
@@ -1247,7 +1399,6 @@ function diaspora_comment($importer,$xml,$msg) {
        }
 
        $body = diaspora2bb($text);
-
        $message_id = $diaspora_handle . ':' . $guid;
 
        $datarray = array();
@@ -1284,13 +1435,15 @@ function diaspora_comment($importer,$xml,$msg) {
        $datarray['contact-id'] = $contact['id'];
        $datarray['type'] = 'remote-comment';
        $datarray['wall'] = $parent_item['wall'];
+       $datarray['network']  = NETWORK_DIASPORA;
+       $datarray['verb'] = ACTIVITY_POST;
        $datarray['gravity'] = GRAVITY_COMMENT;
        $datarray['guid'] = $guid;
        $datarray['uri'] = $message_id;
        $datarray['parent-uri'] = $parent_item['uri'];
 
        // No timestamps for comments? OK, we'll the use current time.
-       $datarray['created'] = $datarray['edited'] = datetime_convert();
+       $datarray['changed'] = $datarray['created'] = $datarray['edited'] = datetime_convert();
        $datarray['private'] = $parent_item['private'];
 
        $datarray['owner-name'] = $parent_item['owner-name'];
@@ -1304,17 +1457,18 @@ function diaspora_comment($importer,$xml,$msg) {
        $datarray['tag'] = $str_tags;
 
        // We can't be certain what the original app is if the message is relayed.
-       if(($parent_item['origin']) && (! $parent_author_signature)) 
+       if(($parent_item['origin']) && (! $parent_author_signature))
                $datarray['app']  = 'Diaspora';
 
        $message_id = item_store($datarray);
 
-       if($message_id) {
-               q("update item set plink = '%s' where id = %d limit 1",
-                       dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
-                       intval($message_id)
-               );
-       }
+       //if($message_id) {
+               //q("update item set plink = '%s' where id = %d",
+               //      //dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
+               //      dbesc($a->get_baseurl().'/display/'.$datarray['guid']),
+               //      intval($message_id)
+               //);
+       //}
 
        if(($parent_item['origin']) && (! $parent_author_signature)) {
                q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
@@ -1342,12 +1496,12 @@ function diaspora_comment($importer,$xml,$msg) {
                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(
@@ -1358,7 +1512,7 @@ function diaspora_comment($importer,$xml,$msg) {
                                'to_email'     => $importer['email'],
                                'uid'          => $importer['uid'],
                                'item'         => $datarray,
-                               'link'             => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id,
+                               'link'             => $a->get_baseurl().'/display/'.urlencode($datarray['guid']),
                                'source_name'  => $datarray['author-name'],
                                'source_link'  => $datarray['author-link'],
                                'source_photo' => $datarray['author-avatar'],
@@ -1519,15 +1673,15 @@ function diaspora_conversation($importer,$xml,$msg) {
                        dbesc($message_id),
                        dbesc($parent_uri),
                        dbesc($msg_created_at)
-               );                      
+               );
 
-               q("update conv set updated = '%s' where id = %d limit 1",
+               q("update conv set updated = '%s' where id = %d",
                        dbesc(datetime_convert()),
                        intval($conversation['id'])
-               );              
+               );
 
                require_once('include/enotify.php');
-               notification(array(                     
+               notification(array(
                        'type' => NOTIFY_MAIL,
                        'notify_flags' => $importer['notify-flags'],
                        'language' => $importer['language'],
@@ -1541,7 +1695,7 @@ function diaspora_conversation($importer,$xml,$msg) {
                        'verb' => ACTIVITY_POST,
                        'otype' => 'mail'
                ));
-       }       
+       }
 
        return;
 }
@@ -1586,7 +1740,7 @@ function diaspora_message($importer,$xml,$msg) {
        }
 
        $reply = 0;
-                       
+
        $body = diaspora2bb($msg_text);
        $message_id = $msg_diaspora_handle . ':' . $msg_guid;
 
@@ -1632,18 +1786,18 @@ function diaspora_message($importer,$xml,$msg) {
                dbesc($message_id),
                dbesc($parent_uri),
                dbesc($msg_created_at)
-       );                      
+       );
 
-       q("update conv set updated = '%s' where id = %d limit 1",
+       q("update conv set updated = '%s' where id = %d",
                dbesc(datetime_convert()),
                intval($conversation['id'])
-       );              
-       
+       );
+
        return;
 }
 
 
-function diaspora_photo($importer,$xml,$msg) {
+function diaspora_photo($importer,$xml,$msg,$attempt=1) {
 
        $a = get_app();
 
@@ -1681,7 +1835,14 @@ function diaspora_photo($importer,$xml,$msg) {
                dbesc($status_message_guid)
        );
        if(! count($r)) {
-               logger('diaspora_photo: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid);
+               if($attempt <= 3) {
+                       q("INSERT INTO dsprphotoq (uid, msg, attempt) VALUES (%d, '%s', %d)",
+                          intval($importer['uid']),
+                          dbesc(serialize($msg)),
+                          intval($attempt + 1)
+                       );
+               }
+               logger('diaspora_photo: attempt = ' . $attempt . '; status message not found: ' . $status_message_guid . ' for photo: ' . $guid);
                return;
        }
 
@@ -1693,7 +1854,7 @@ function diaspora_photo($importer,$xml,$msg) {
                                           array($remote_photo_name, 'scaled_full_' . $remote_photo_name));
 
        if(strpos($parent_item['body'],$link_text) === false) {
-               $r = q("update item set `body` = '%s', `visible` = 1 where `id` = %d and `uid` = %d limit 1",
+               $r = q("update item set `body` = '%s', `visible` = 1 where `id` = %d and `uid` = %d",
                        dbesc($link_text . $parent_item['body']),
                        intval($parent_item['id']),
                        intval($parent_item['uid'])
@@ -1753,12 +1914,12 @@ function diaspora_like($importer,$xml,$msg) {
                if($positive === 'true') {
                        logger('diaspora_like: duplicate like: ' . $guid);
                        return;
-               } 
+               }
                // Note: I don't think "Like" objects with positive = "false" are ever actually used
                // It looks like "RelayableRetractions" are used for "unlike" instead
                if($positive === 'false') {
                        logger('diaspora_like: received a like with positive set to "false"...ignoring');
-/*                     q("UPDATE `item` SET `deleted` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
+/*                     q("UPDATE `item` SET `deleted` = 1 WHERE `id` = %d AND `uid` = %d",
                                intval($r[0]['id']),
                                intval($importer['uid'])
                        );*/
@@ -1799,8 +1960,12 @@ function diaspora_like($importer,$xml,$msg) {
                $parent_author_signature = base64_decode($parent_author_signature);
 
                if(! rsa_verify($signed_data,$parent_author_signature,$key,'sha256')) {
-                       logger('diaspora_like: top-level owner verification failed.');
-                       return;
+                       if (intval(get_config('system','ignore_diaspora_like_signature')))
+                               logger('diaspora_like: top-level owner verification failed. Proceeding anyway.');
+                       else {
+                               logger('diaspora_like: top-level owner verification failed.');
+                               return;
+                       }
                }
        }
        else {
@@ -1812,8 +1977,12 @@ function diaspora_like($importer,$xml,$msg) {
                $author_signature = base64_decode($author_signature);
 
                if(! rsa_verify($signed_data,$author_signature,$key,'sha256')) {
-                       logger('diaspora_like: like creator verification failed.');
-                       return;
+                       if (intval(get_config('system','ignore_diaspora_like_signature')))
+                               logger('diaspora_like: like creator verification failed. Proceeding anyway');
+                       else {
+                               logger('diaspora_like: like creator verification failed.');
+                               return;
+                       }
                }
        }
 
@@ -1859,6 +2028,7 @@ EOT;
        $arr['uri'] = $uri;
        $arr['uid'] = $importer['uid'];
        $arr['guid'] = $guid;
+       $arr['network']  = NETWORK_DIASPORA;
        $arr['contact-id'] = $contact['id'];
        $arr['type'] = 'activity';
        $arr['wall'] = $parent_item['wall'];
@@ -1874,10 +2044,11 @@ EOT;
        $arr['author-name'] = $person['name'];
        $arr['author-link'] = $person['url'];
        $arr['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
-       
+
        $ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
        $alink = '[url=' . $parent_item['author-link'] . ']' . $parent_item['author-name'] . '[/url]';
-       $plink = '[url=' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . ']' . $post_type . '[/url]';
+       //$plink = '[url=' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . ']' . $post_type . '[/url]';
+       $plink = '[url='.$a->get_baseurl().'/display/'.urlencode($guid).']'.$post_type.'[/url]';
        $arr['body'] =  sprintf( $bodyverb, $ulink, $alink, $plink );
 
        $arr['app']  = 'Diaspora';
@@ -1893,12 +2064,13 @@ EOT;
        $message_id = item_store($arr);
 
 
-       if($message_id) {
-               q("update item set plink = '%s' where id = %d limit 1",
-                       dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
-                       intval($message_id)
-               );
-       }
+       //if($message_id) {
+       //      q("update item set plink = '%s' where id = %d",
+       //              //dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
+       //              dbesc($a->get_baseurl().'/display/'.$guid),
+       //              intval($message_id)
+       //      );
+       //}
 
        if(! $parent_author_signature) {
                q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
@@ -1941,10 +2113,11 @@ function diaspora_retraction($importer,$xml) {
                );
                if(count($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()),                      
+                               q("update item set `deleted` = 1, `changed` = '%s' where `id` = %d",
+                                       dbesc(datetime_convert()),
                                        intval($r[0]['id'])
                                );
+                               delete_thread($r[0]['id'], $r[0]['parent-uri']);
                        }
                }
        }
@@ -2012,12 +2185,13 @@ function diaspora_signed_retraction($importer,$xml,$msg) {
                );
                if(count($r)) {
                        if(link_compare($r[0]['author-link'],$contact['url'])) {
-                               q("update item set `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = '' where `id` = %d limit 1",
-                                       dbesc(datetime_convert()),                      
-                                       dbesc(datetime_convert()),                      
+                               q("update item set `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = '' where `id` = %d",
+                                       dbesc(datetime_convert()),
+                                       dbesc(datetime_convert()),
                                        intval($r[0]['id'])
                                );
-       
+                               delete_thread($r[0]['id'], $r[0]['parent-uri']);
+
                                // Now check if the retraction needs to be relayed by us
                                //
                                // The first item in the `item` table with the parent id is the parent. However, MySQL doesn't always
@@ -2076,13 +2250,28 @@ function diaspora_profile($importer,$xml,$msg) {
        $name = unxmlify($xml->first_name) . ((strlen($xml->last_name)) ? ' ' . unxmlify($xml->last_name) : '');
        $image_url = unxmlify($xml->image_url);
        $birthday = unxmlify($xml->birthday);
+       $location = diaspora2bb(unxmlify($xml->location));
+       $about = diaspora2bb(unxmlify($xml->bio));
+       $gender = unxmlify($xml->gender);
+       $tags = unxmlify($xml->tag_string);
 
+       $tags = explode("#", $tags);
+
+       $keywords = array();
+       foreach ($tags as $tag) {
+               $tag = trim(strtolower($tag));
+               if ($tag != "")
+                       $keywords[] = $tag;
+       }
+
+       $keywords = implode(", ", $keywords);
 
        $handle_parts = explode("@", $diaspora_handle);
        if($name === '') {
                $name = $handle_parts[0];
        }
-       if(strpos($image_url, $handle_parts[1]) === false) {
+
+       if( preg_match("|^https?://|", $image_url) === 0) {
                $image_url = "http://" . $handle_parts[1] . $image_url;
        }
 
@@ -2095,8 +2284,8 @@ function diaspora_profile($importer,$xml,$msg) {
        require_once('include/Photo.php');
 
        $images = import_profile_photo($image_url,$importer['uid'],$contact['id']);
-       
-       // Generic birthday. We don't know the timezone. The year is irrelevant. 
+
+       // Generic birthday. We don't know the timezone. The year is irrelevant.
 
        $birthday = str_replace('1000','1901',$birthday);
 
@@ -2109,9 +2298,9 @@ function diaspora_profile($importer,$xml,$msg) {
                $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. 
+       // 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",
+       $r = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s', `avatar-date` = '%s' , `bd` = '%s', `location` = '%s', `about` = '%s', `keywords` = '%s', `gender` = '%s' WHERE `id` = %d AND `uid` = %d",
                dbesc($name),
                dbesc(datetime_convert()),
                dbesc($images[0]),
@@ -2119,9 +2308,34 @@ function diaspora_profile($importer,$xml,$msg) {
                dbesc($images[2]),
                dbesc(datetime_convert()),
                dbesc($birthday),
+               dbesc($location),
+               dbesc($about),
+               dbesc($keywords),
+               dbesc($gender),
                intval($contact['id']),
                intval($importer['uid'])
-       ); 
+       );
+
+       if (unxmlify($xml->searchable) == "true") {
+               require_once('include/socgraph.php');
+               poco_check($contact['url'], $name, NETWORK_DIASPORA, $images[0], $about, $location, $gender, $keywords, "",
+                       datetime_convert(), $contact['id'], $importer['uid']);
+       }
+
+       $profileurl = "";
+       $author = q("SELECT * FROM `unique_contacts` WHERE `url`='%s' LIMIT 1",
+                       dbesc(normalise_link($contact['url'])));
+
+       if (count($author) == 0) {
+               q("INSERT INTO `unique_contacts` (`url`, `name`, `avatar`, `location`, `about`) VALUES ('%s', '%s', '%s', '%s', '%s')",
+                       dbesc(normalise_link($contact['url'])), dbesc($name), dbesc($location), dbesc($about), dbesc($images[0]));
+
+               $author = q("SELECT id FROM unique_contacts WHERE url='%s' LIMIT 1",
+                       dbesc(normalise_link($contact['url'])));
+       } else if (normalise_link($contact['url']).$name.$location.$about != normalise_link($author[0]["url"]).$author[0]["name"].$author[0]["location"].$author[0]["about"]) {
+               q("UPDATE unique_contacts SET name = '%s', avatar = '%s', `location` = '%s', `about` = '%s' WHERE url = '%s'",
+               dbesc($name), dbesc($images[0]), dbesc($location), dbesc($about), dbesc(normalise_link($contact['url'])));
+       }
 
 /*     if($r) {
                if($oldphotos) {
@@ -2229,7 +2443,7 @@ function diaspora_send_status($item,$owner,$contact,$public_batch = false) {
                                $body .= '[' . $mtch[3] . '](' . $mtch[1] . ')' . "\n";
                        }
                }
-       }       
+       }
 
 
        $public = (($item['private']) ? 'false' : 'true');
@@ -2237,22 +2451,40 @@ function diaspora_send_status($item,$owner,$contact,$public_batch = false) {
        require_once('include/datetime.php');
        $created = datetime_convert('UTC','UTC',$item['created'],'Y-m-d H:i:s \U\T\C');
 
-       $tpl = get_markup_template('diaspora_post.tpl');
-       $msg = replace_macros($tpl, array(
-               '$body' => $body,
-               '$guid' => $item['guid'],
-               '$handle' => xmlify($myaddr),
-               '$public' => $public,
-               '$created' => $created
-       ));
+       // Detect a share element and do a reshare
+       // see: https://github.com/Raven24/diaspora-federation/blob/master/lib/diaspora-federation/entities/reshare.rb
+       if (!$item['private'] AND ($ret = diaspora_is_reshare($item["body"]))) {
+               $tpl = get_markup_template('diaspora_reshare.tpl');
+               $msg = replace_macros($tpl, array(
+                       '$root_handle' => xmlify($ret['root_handle']),
+                       '$root_guid' => $ret['root_guid'],
+                       '$guid' => $item['guid'],
+                       '$handle' => xmlify($myaddr),
+                       '$public' => $public,
+                       '$created' => $created,
+                       '$provider' => $item["app"]
+               ));
+       } else {
+               $tpl = get_markup_template('diaspora_post.tpl');
+               $msg = replace_macros($tpl, array(
+                       '$body' => $body,
+                       '$guid' => $item['guid'],
+                       '$handle' => xmlify($myaddr),
+                       '$public' => $public,
+                       '$created' => $created,
+                       '$provider' => $item["app"]
+               ));
+       }
 
-       logger('diaspora_send_status: ' . $owner['username'] . ' -> ' . $contact['name'] . ' base message: ' . $msg, LOGGER_DATA);
+       logger('diaspora_send_status: '.$owner['username'].' -> '.$contact['name'].' base message: '.$msg, LOGGER_DATA);
 
        $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
        //$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch));
 
        $return_code = diaspora_transmit($owner,$contact,$slap,$public_batch);
 
+       logger('diaspora_send_status: guid: '.$item['guid'].' result '.$return_code, LOGGER_DEBUG);
+
        if(count($images)) {
                diaspora_send_images($item,$owner,$contact,$images,$public_batch);
        }
@@ -2260,6 +2492,53 @@ function diaspora_send_status($item,$owner,$contact,$public_batch = false) {
        return $return_code;
 }
 
+function diaspora_is_reshare($body) {
+       $body = trim($body);
+
+        // Skip if it isn't a pure repeated messages
+        // Does it start with a share?
+        if (strpos($body, "[share") > 0)
+                return(false);
+
+        // Does it end with a share?
+        if (strlen($body) > (strrpos($body, "[/share]") + 8))
+                return(false);
+
+        $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
+        // Skip if there is no shared message in there
+        if ($body == $attributes)
+                return(false);
+
+        $profile = "";
+        preg_match("/profile='(.*?)'/ism", $attributes, $matches);
+        if ($matches[1] != "")
+                $profile = $matches[1];
+
+        preg_match('/profile="(.*?)"/ism', $attributes, $matches);
+        if ($matches[1] != "")
+                $profile = $matches[1];
+
+        $ret= array();
+
+        $ret["root_handle"] = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
+        if (($ret["root_handle"] == $profile) OR ($ret["root_handle"] == ""))
+                return(false);
+
+        $link = "";
+        preg_match("/link='(.*?)'/ism", $attributes, $matches);
+        if ($matches[1] != "")
+                $link = $matches[1];
+
+        preg_match('/link="(.*?)"/ism', $attributes, $matches);
+        if ($matches[1] != "")
+                $link = $matches[1];
+
+        $ret["root_guid"] = preg_replace("=https?://(.*)/posts/(.*)=ism", "$2", $link);
+        if (($ret["root_guid"] == $link) OR ($ret["root_guid"] == ""))
+                return(false);
+
+        return($ret);
+}
 
 function diaspora_send_images($item,$owner,$contact,$images,$public_batch = false) {
        $a = get_app();
@@ -2281,7 +2560,7 @@ function diaspora_send_images($item,$owner,$contact,$images,$public_batch = fals
                if(! count($r))
                        continue;
                $public = (($r[0]['allow_cid'] || $r[0]['allow_gid'] || $r[0]['deny_cid'] || $r[0]['deny_gid']) ? 'false' : 'true' );
-               $msg = replace_macros($tpl,array(               
+               $msg = replace_macros($tpl,array(
                        '$path' => xmlify($image['path']),
                        '$filename' => xmlify($image['file']),
                        '$msg_guid' => xmlify($image['guid']),
@@ -2307,13 +2586,15 @@ function diaspora_send_followup($item,$owner,$contact,$public_batch = false) {
        $myaddr = $owner['nickname'] . '@' .  substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
 //     $theiraddr = $contact['addr'];
 
-       // Diaspora doesn't support threaded comments
-       /*if($item['thr-parent']) {
+       // Diaspora doesn't support threaded comments, but some
+       // versions of Diaspora (i.e. Diaspora-pistos) support
+       // likes on comments
+       if($item['verb'] === ACTIVITY_LIKE && $item['thr-parent']) {
                $p = q("select guid, type, uri, `parent-uri` from item where uri = '%s' limit 1",
                        dbesc($item['thr-parent'])
                      );
        }
-       else {*/
+       else {
                // The first item in the `item` table with the parent id is the parent. However, MySQL doesn't always
                // return the items ordered by `item`.`id`, in which case the wrong item is chosen as the parent.
                // The only item with `parent` and `id` as the parent id is the parent item.
@@ -2321,7 +2602,7 @@ function diaspora_send_followup($item,$owner,$contact,$public_batch = false) {
                        intval($item['parent']),
                        intval($item['parent'])
                );
-       //}
+       }
        if(count($p))
                $parent = $p[0];
        else
@@ -2383,13 +2664,15 @@ function diaspora_send_relay($item,$owner,$contact,$public_batch = false) {
        $body = $item['body'];
        $text = html_entity_decode(bb2diaspora($body));
 
-       // Diaspora doesn't support threaded comments
-       /*if($item['thr-parent']) {
+       // Diaspora doesn't support threaded comments, but some
+       // versions of Diaspora (i.e. Diaspora-pistos) support
+       // likes on comments
+       if($item['verb'] === ACTIVITY_LIKE && $item['thr-parent']) {
                $p = q("select guid, type, uri, `parent-uri` from item where uri = '%s' limit 1",
                        dbesc($item['thr-parent'])
                      );
        }
-       else {*/
+       else {
                // The first item in the `item` table with the parent id is the parent. However, MySQL doesn't always
                // return the items ordered by `item`.`id`, in which case the wrong item is chosen as the parent.
                // The only item with `parent` and `id` as the parent id is the parent item.
@@ -2397,7 +2680,7 @@ function diaspora_send_relay($item,$owner,$contact,$public_batch = false) {
                       intval($item['parent']),
                       intval($item['parent'])
                      );
-       //}
+       }
        if(count($p))
                $parent = $p[0];
        else
@@ -2626,16 +2909,15 @@ function diaspora_transmit($owner,$contact,$slap,$public_batch,$queue_run=false)
                $return_code = 0;
        }
        else {
-               if(! intval(get_config('system','diaspora_test'))) {
+               if (!intval(get_config('system','diaspora_test'))) {
                        post_url($dest_url . '/', $slap);
                        $return_code = $a->get_curl_code();
-               }
-               else {
+               } else {
                        logger('diaspora_transmit: test_mode');
                        return 200;
                }
        }
-       
+
        logger('diaspora_transmit: ' . $logid . ' returns: ' . $return_code);
 
        if((! $return_code) || (($return_code == 503) && (stristr($a->get_curl_headers(),'retry-after')))) {