]> git.mxchange.org Git - friendica.git/blobdiff - include/ostatus.php
Merge remote-tracking branch 'upstream/develop' into 1601-dfrn-import
[friendica.git] / include / ostatus.php
index d39059eb6f88c0ebdb9f8c9082e1e5be974e455a..caaeec84f7dd974db3a9b5c079064f7f60e9cbf4 100644 (file)
@@ -2,6 +2,7 @@
 require_once("include/Contact.php");
 require_once("include/threads.php");
 require_once("include/html2bbcode.php");
+require_once("include/bbcode.php");
 require_once("include/items.php");
 require_once("mod/share.php");
 require_once("include/enotify.php");
@@ -9,6 +10,8 @@ require_once("include/socgraph.php");
 require_once("include/Photo.php");
 require_once("include/Scrape.php");
 require_once("include/follow.php");
+require_once("include/api.php");
+require_once("mod/proxy.php");
 
 define('OSTATUS_DEFAULT_POLL_INTERVAL', 30); // given in minutes
 define('OSTATUS_DEFAULT_POLL_TIMEFRAME', 1440); // given in minutes
@@ -48,7 +51,7 @@ function ostatus_follow_friends($uid, $url) {
                $r = q("SELECT `url` FROM `contact` WHERE `uid` = %d AND
                        (`nurl` = '%s' OR `alias` = '%s' OR `alias` = '%s') AND
                        `network` != '%s' LIMIT 1",
-                       intval($uid), dbesc(normalise_link($url)),
+                       intval($uid), dbesc(normalise_link($url)),
                        dbesc(normalise_link($url)), dbesc($url), dbesc(NETWORK_STATUSNET));
                if (!$r) {
                        $data = probe_url($friend->statusnet_profile_url);
@@ -115,47 +118,57 @@ function ostatus_fetchauthor($xpath, $context, $importer, &$contact, $onlyfetch)
        $author["owner-link"] = $author["author-link"];
        $author["owner-avatar"] = $author["author-avatar"];
 
-       if ($r AND !$onlyfetch) {
+       // Only update the contacts if it is an OStatus contact
+       if ($r AND !$onlyfetch AND ($contact["network"] == NETWORK_OSTATUS)) {
                // Update contact data
-               $update_contact = ($r[0]['name-date'] < datetime_convert('','','now -12 hours'));
-               if ($update_contact) {
-                       logger("Update contact data for contact ".$contact["id"], LOGGER_DEBUG);
 
-                       $value = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
-                       if ($value != "")
-                               $contact["name"] = $value;
+               $value = $xpath->query("atom:link[@rel='salmon']", $context)->item(0)->nodeValue;
+               if ($value != "")
+                       $contact["notify"] = $value;
+
+               $value = $xpath->evaluate('atom:author/uri/text()', $context)->item(0)->nodeValue;
+               if ($value != "")
+                       $contact["alias"] = $value;
+
+               $value = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
+               if ($value != "")
+                       $contact["name"] = $value;
+
+               $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
+               if ($value != "")
+                       $contact["nick"] = $value;
+
+               $value = $xpath->evaluate('atom:author/poco:note/text()', $context)->item(0)->nodeValue;
+               if ($value != "")
+                       $contact["about"] = html2bbcode($value);
 
-                       $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
-                       if ($value != "")
-                               $contact["nick"] = $value;
+               $value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
+               if ($value != "")
+                       $contact["location"] = $value;
 
-                       $value = $xpath->evaluate('atom:author/poco:note/text()', $context)->item(0)->nodeValue;
-                       if ($value != "")
-                               $contact["about"] = $value;
+               if (($contact["name"] != $r[0]["name"]) OR ($contact["nick"] != $r[0]["nick"]) OR ($contact["about"] != $r[0]["about"]) OR ($contact["location"] != $r[0]["location"])) {
 
-                       $value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
-                       if ($value != "")
-                               $contact["location"] = $value;
+                       logger("Update contact data for contact ".$contact["id"], LOGGER_DEBUG);
 
                        q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `about` = '%s', `location` = '%s', `name-date` = '%s' WHERE `id` = %d",
                                dbesc($contact["name"]), dbesc($contact["nick"]), dbesc($contact["about"]), dbesc($contact["location"]),
                                dbesc(datetime_convert()), intval($contact["id"]));
 
                        poco_check($contact["url"], $contact["name"], $contact["network"], $author["author-avatar"], $contact["about"], $contact["location"],
-                                       "", "", "", datetime_convert(), 2, $contact["id"], $contact["uid"]);
+                                               "", "", "", datetime_convert(), 2, $contact["id"], $contact["uid"]);
                }
 
-               $update_photo = ($r[0]['avatar-date'] < datetime_convert('','','now -12 hours'));
-
-               if ($update_photo AND isset($author["author-avatar"])) {
+               if (isset($author["author-avatar"]) AND ($author["author-avatar"] != $r[0]['avatar'])) {
                        logger("Update profile picture for contact ".$contact["id"], LOGGER_DEBUG);
 
-                       $photos = import_profile_photo($author["author-avatar"], $importer["uid"], $contact["id"]);
-
-                       q("UPDATE `contact` SET `photo` = '%s', `thumb` = '%s', `micro` = '%s', `avatar-date` = '%s' WHERE `id` = %d",
-                               dbesc($photos[0]), dbesc($photos[1]), dbesc($photos[2]),
-                               dbesc(datetime_convert()), intval($contact["id"]));
+                       update_contact_avatar($author["author-avatar"], $importer["uid"], $contact["id"]);
                }
+
+
+               /// @todo Add the "addr" field
+               $contact["generation"] = 2;
+               $contact["photo"] = $author["author-avatar"];
+               update_gcontact($contact);
        }
 
        return($author);
@@ -171,14 +184,14 @@ function ostatus_salmon_author($xml, $importer) {
        @$doc->loadXML($xml);
 
        $xpath = new DomXPath($doc);
-       $xpath->registerNamespace('atom', "http://www.w3.org/2005/Atom");
-       $xpath->registerNamespace('thr', "http://purl.org/syndication/thread/1.0");
-       $xpath->registerNamespace('georss', "http://www.georss.org/georss");
-       $xpath->registerNamespace('activity', "http://activitystrea.ms/spec/1.0/");
-       $xpath->registerNamespace('media', "http://purl.org/syndication/atommedia");
-       $xpath->registerNamespace('poco', "http://portablecontacts.net/spec/1.0");
-       $xpath->registerNamespace('ostatus', "http://ostatus.org/schema/1.0");
-       $xpath->registerNamespace('statusnet', "http://status.net/schema/api/1/");
+       $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
+       $xpath->registerNamespace('thr', NAMESPACE_THREAD);
+       $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
+       $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
+       $xpath->registerNamespace('media', NAMESPACE_MEDIA);
+       $xpath->registerNamespace('poco', NAMESPACE_POCO);
+       $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
+       $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 
        $entries = $xpath->query('/atom:entry');
 
@@ -202,14 +215,14 @@ function ostatus_import($xml,$importer,&$contact, &$hub) {
        @$doc->loadXML($xml);
 
        $xpath = new DomXPath($doc);
-       $xpath->registerNamespace('atom', "http://www.w3.org/2005/Atom");
-       $xpath->registerNamespace('thr', "http://purl.org/syndication/thread/1.0");
-       $xpath->registerNamespace('georss', "http://www.georss.org/georss");
-       $xpath->registerNamespace('activity', "http://activitystrea.ms/spec/1.0/");
-       $xpath->registerNamespace('media', "http://purl.org/syndication/atommedia");
-       $xpath->registerNamespace('poco', "http://portablecontacts.net/spec/1.0");
-       $xpath->registerNamespace('ostatus', "http://ostatus.org/schema/1.0");
-       $xpath->registerNamespace('statusnet', "http://status.net/schema/api/1/");
+       $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
+       $xpath->registerNamespace('thr', NAMESPACE_THREAD);
+       $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
+       $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
+       $xpath->registerNamespace('media', NAMESPACE_MEDIA);
+       $xpath->registerNamespace('poco', NAMESPACE_POCO);
+       $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
+       $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 
        $gub = "";
        $hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
@@ -287,8 +300,8 @@ function ostatus_import($xml,$importer,&$contact, &$hub) {
                $item["object"] = $xml;
                $item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
 
-               // To-Do:
-               // Delete a message
+               /// @TODO
+               /// Delete a message
                if ($item["verb"] == "qvitter-delete-notice") {
                        // ignore "Delete" messages (by now)
                        logger("Ignore delete message ".print_r($item, true));
@@ -315,7 +328,7 @@ function ostatus_import($xml,$importer,&$contact, &$hub) {
                        $orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
                        logger("Favorite ".$orig_uri." ".print_r($item, true));
 
-                       $item["verb"] = ACTIVITY_LIKE;
+                       $item["verb"] = ACTIVITY_LIKE;
                        $item["parent-uri"] = $orig_uri;
                        $item["gravity"] = GRAVITY_LIKE;
                }
@@ -350,8 +363,8 @@ function ostatus_import($xml,$importer,&$contact, &$hub) {
                if ($georsspoint)
                        $item["coord"] = $georsspoint->item(0)->nodeValue;
 
-               // To-Do
-               // $item["location"] =
+               /// @TODO
+               /// $item["location"] =
 
                $categories = $xpath->query('atom:category', $entry);
                if ($categories) {
@@ -534,29 +547,6 @@ function ostatus_import($xml,$importer,&$contact, &$hub) {
                }
 
                logger("Item was stored with id ".$item_id, LOGGER_DEBUG);
-               $item["id"] = $item_id;
-
-               if ($mention) {
-                       $u = q("SELECT `notify-flags`, `language`, `username`, `email` FROM user WHERE uid = %d LIMIT 1", intval($item['uid']));
-                       $r = q("SELECT `parent` FROM `item` WHERE `id` = %d", intval($item_id));
-
-                       notification(array(
-                               'type'         => NOTIFY_TAGSELF,
-                               'notify_flags' => $u[0]["notify-flags"],
-                               'language'     => $u[0]["language"],
-                               'to_name'      => $u[0]["username"],
-                               'to_email'     => $u[0]["email"],
-                               'uid'          => $item["uid"],
-                               'item'         => $item,
-                               'link'         => $a->get_baseurl().'/display/'.urlencode(get_item_guid($item_id)),
-                               'source_name'  => $item["author-name"],
-                               'source_link'  => $item["author-link"],
-                               'source_photo' => $item["author-avatar"],
-                               'verb'         => ACTIVITY_TAG,
-                               'otype'        => 'item',
-                               'parent'       => $r[0]["parent"]
-                       ));
-               }
        }
 }
 
@@ -702,9 +692,13 @@ function ostatus_completion($conversation_url, $uid, $item = array()) {
                $conv_as = str_replace(',"statusnet:notice_info":', ',"statusnet_notice_info":', $conv_as);
                $conv_as = json_decode($conv_as);
 
+               $no_of_items = sizeof($items);
+
                if (@is_array($conv_as->items))
-                       $items = array_merge($items, $conv_as->items);
-               else
+                       foreach ($conv_as->items AS $single_item)
+                               $items[$single_item->id] = $single_item;
+
+               if ($no_of_items == sizeof($items))
                        break;
 
                $pageno++;
@@ -818,7 +812,7 @@ function ostatus_completion($conversation_url, $uid, $item = array()) {
                                $existing_message = $message_exists[0];
 
                                // We improved the way we fetch OStatus messages, this shouldn't happen very often now
-                               // To-Do: we have to change the shadow copies as well. This way here is really ugly.
+                               /// @TODO We have to change the shadow copies as well. This way here is really ugly.
                                if ($existing_message["parent"] != $parent["id"]) {
                                        logger('updating id '.$existing_message["id"].' with parent '.$existing_message["parent"].' to parent '.$parent["id"].' uri '.$parent["uri"].' thread '.$parent_uri, LOGGER_DEBUG);
 
@@ -871,7 +865,7 @@ function ostatus_completion($conversation_url, $uid, $item = array()) {
                        logger("No contact found for url ".$actor, LOGGER_DEBUG);
 
                        // Adding a global contact
-                       // To-Do: Use this data for the post
+                       /// @TODO Use this data for the post
                        $global_contact_id = get_contact($actor, 0);
 
                        logger("Global contact ".$global_contact_id." found for url ".$actor, LOGGER_DEBUG);
@@ -997,28 +991,6 @@ function ostatus_completion($conversation_url, $uid, $item = array()) {
                // Add the conversation entry (but don't fetch the whole conversation)
                ostatus_store_conversation($newitem, $conversation_url);
 
-               if ($mention) {
-                       $u = q("SELECT `notify-flags`, `language`, `username`, `email` FROM user WHERE uid = %d LIMIT 1", intval($uid));
-                       $r = q("SELECT `parent` FROM `item` WHERE `id` = %d", intval($newitem));
-
-                       notification(array(
-                               'type'         => NOTIFY_TAGSELF,
-                               'notify_flags' => $u[0]["notify-flags"],
-                               'language'     => $u[0]["language"],
-                               'to_name'      => $u[0]["username"],
-                               'to_email'     => $u[0]["email"],
-                               'uid'          => $uid,
-                               'item'         => $arr,
-                               'link'         => $a->get_baseurl().'/display/'.urlencode(get_item_guid($newitem)),
-                               'source_name'  => $arr["author-name"],
-                               'source_link'  => $arr["author-link"],
-                               'source_photo' => $arr["author-avatar"],
-                               'verb'         => ACTIVITY_TAG,
-                               'otype'        => 'item',
-                               'parent'       => $r[0]["parent"]
-                       ));
-               }
-
                // If the newly created item is the top item then change the parent settings of the thread
                // This shouldn't happen anymore. This is supposed to be absolote.
                if ($arr["uri"] == $first_id) {
@@ -1063,4 +1035,551 @@ function ostatus_store_conversation($itemid, $conversation_url) {
                logger('Storing conversation url '.$conversation_url.' for id '.$itemid);
        }
 }
+
+function get_reshared_guid($item) {
+       $body = trim($item["body"]);
+
+       // Skip if it isn't a pure repeated messages
+       // Does it start with a share?
+       if (strpos($body, "[share") > 0)
+               return("");
+
+       // Does it end with a share?
+       if (strlen($body) > (strrpos($body, "[/share]") + 8))
+               return("");
+
+       $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);
+
+       $guid = "";
+       preg_match("/guid='(.*?)'/ism", $attributes, $matches);
+       if ($matches[1] != "")
+               $guid = $matches[1];
+
+       preg_match('/guid="(.*?)"/ism', $attributes, $matches);
+       if ($matches[1] != "")
+               $guid = $matches[1];
+
+       return $guid;
+}
+
+function xml_create_element($doc, $element, $value = "", $attributes = array()) {
+       $element = $doc->createElement($element, xmlify($value));
+
+       foreach ($attributes AS $key => $value) {
+               $attribute = $doc->createAttribute($key);
+               $attribute->value = xmlify($value);
+               $element->appendChild($attribute);
+       }
+       return $element;
+}
+
+function xml_add_element($doc, $parent, $element, $value = "", $attributes = array()) {
+       $element = xml_create_element($doc, $element, $value, $attributes);
+       $parent->appendChild($element);
+}
+
+function ostatus_format_picture_post($body) {
+       $siteinfo = get_attached_data($body);
+
+       if (($siteinfo["type"] == "photo")) {
+               if (isset($siteinfo["preview"]))
+                       $preview = $siteinfo["preview"];
+               else
+                       $preview = $siteinfo["image"];
+
+               // Is it a remote picture? Then make a smaller preview here
+               $preview = proxy_url($preview, false, PROXY_SIZE_SMALL);
+
+               // Is it a local picture? Then make it smaller here
+               $preview = str_replace(array("-0.jpg", "-0.png"), array("-2.jpg", "-2.png"), $preview);
+               $preview = str_replace(array("-1.jpg", "-1.png"), array("-2.jpg", "-2.png"), $preview);
+
+               if (isset($siteinfo["url"]))
+                       $url = $siteinfo["url"];
+               else
+                       $url = $siteinfo["image"];
+
+               $body = trim($siteinfo["text"])." [url]".$url."[/url]\n[img]".$preview."[/img]";
+       }
+
+       return $body;
+}
+
+function ostatus_add_header($doc, $owner) {
+       $a = get_app();
+
+       $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed');
+       $doc->appendChild($root);
+
+       $root->setAttribute("xmlns:thr", NAMESPACE_THREAD);
+       $root->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
+       $root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
+       $root->setAttribute("xmlns:media", NAMESPACE_MEDIA);
+       $root->setAttribute("xmlns:poco", NAMESPACE_POCO);
+       $root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
+       $root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
+
+       $attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
+       xml_add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
+       xml_add_element($doc, $root, "id", $a->get_baseurl()."/profile/".$owner["nick"]);
+       xml_add_element($doc, $root, "title", sprintf("%s timeline", $owner["name"]));
+       xml_add_element($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
+       xml_add_element($doc, $root, "logo", $owner["photo"]);
+       xml_add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
+
+       $author = ostatus_add_author($doc, $owner);
+       $root->appendChild($author);
+
+       $attributes = array("href" => $owner["url"], "rel" => "alternate", "type" => "text/html");
+       xml_add_element($doc, $root, "link", "", $attributes);
+
+       /// @TODO We have to find out what this is
+       /// $attributes = array("href" => $a->get_baseurl()."/sup",
+       ///             "rel" => "http://api.friendfeed.com/2008/03#sup",
+       ///             "type" => "application/json");
+       /// xml_add_element($doc, $root, "link", "", $attributes);
+
+       ostatus_hublinks($doc, $root);
+
+       $attributes = array("href" => $a->get_baseurl()."/salmon/".$owner["nick"], "rel" => "salmon");
+       xml_add_element($doc, $root, "link", "", $attributes);
+
+       $attributes = array("href" => $a->get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies");
+       xml_add_element($doc, $root, "link", "", $attributes);
+
+       $attributes = array("href" => $a->get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention");
+       xml_add_element($doc, $root, "link", "", $attributes);
+
+       $attributes = array("href" => $a->get_baseurl()."/api/statuses/user_timeline/".$owner["nick"].".atom",
+                       "rel" => "self", "type" => "application/atom+xml");
+       xml_add_element($doc, $root, "link", "", $attributes);
+
+       return $root;
+}
+
+function ostatus_hublinks($doc, $root) {
+       $a = get_app();
+       $hub = get_config('system','huburl');
+
+       $hubxml = '';
+       if(strlen($hub)) {
+               $hubs = explode(',', $hub);
+               if(count($hubs)) {
+                       foreach($hubs as $h) {
+                               $h = trim($h);
+                               if(! strlen($h))
+                                       continue;
+                               if ($h === '[internal]')
+                                       $h = $a->get_baseurl() . '/pubsubhubbub';
+                               xml_add_element($doc, $root, "link", "", array("href" => $h, "rel" => "hub"));
+                       }
+               }
+       }
+}
+
+function ostatus_get_attachment($doc, $root, $item) {
+       $o = "";
+       $siteinfo = get_attached_data($item["body"]);
+
+       switch($siteinfo["type"]) {
+               case 'link':
+                       $attributes = array("rel" => "enclosure",
+                                       "href" => $siteinfo["url"],
+                                       "type" => "text/html; charset=UTF-8",
+                                       "length" => "",
+                                       "title" => $siteinfo["title"]);
+                       xml_add_element($doc, $root, "link", "", $attributes);
+                       break;
+               case 'photo':
+                       $imgdata = get_photo_info($siteinfo["image"]);
+                       $attributes = array("rel" => "enclosure",
+                                       "href" => $siteinfo["image"],
+                                       "type" => $imgdata["mime"],
+                                       "length" => intval($imgdata["size"]));
+                       xml_add_element($doc, $root, "link", "", $attributes);
+                       break;
+               case 'video':
+                       $attributes = array("rel" => "enclosure",
+                                       "href" => $siteinfo["url"],
+                                       "type" => "text/html; charset=UTF-8",
+                                       "length" => "",
+                                       "title" => $siteinfo["title"]);
+                       xml_add_element($doc, $root, "link", "", $attributes);
+                       break;
+               default:
+                       break;
+       }
+
+       if (($siteinfo["type"] != "photo") AND isset($siteinfo["image"])) {
+               $photodata = get_photo_info($siteinfo["image"]);
+
+               $attributes = array("rel" => "preview", "href" => $siteinfo["image"], "media:width" => $photodata[0], "media:height" => $photodata[1]);
+               xml_add_element($doc, $root, "link", "", $attributes);
+       }
+
+
+       $arr = explode('[/attach],',$item['attach']);
+       if(count($arr)) {
+               foreach($arr as $r) {
+                       $matches = false;
+                       $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
+                       if($cnt) {
+                               $attributes = array("rel" => "enclosure",
+                                               "href" => $matches[1],
+                                               "type" => $matches[3]);
+
+                               if(intval($matches[2]))
+                                       $attributes["length"] = intval($matches[2]);
+
+                               if(trim($matches[4]) != "")
+                                       $attributes["title"] = trim($matches[4]);
+
+                               xml_add_element($doc, $root, "link", "", $attributes);
+                       }
+               }
+       }
+}
+
+function ostatus_add_author($doc, $owner) {
+       $a = get_app();
+
+       $r = q("SELECT `homepage` FROM `profile` WHERE `uid` = %d AND `is-default` LIMIT 1", intval($owner["uid"]));
+       if ($r)
+               $profile = $r[0];
+
+       $author = $doc->createElement("author");
+       xml_add_element($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
+       xml_add_element($doc, $author, "uri", $owner["url"]);
+       xml_add_element($doc, $author, "name", $owner["name"]);
+
+       $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $owner["url"]);
+       xml_add_element($doc, $author, "link", "", $attributes);
+
+       $attributes = array(
+                       "rel" => "avatar",
+                       "type" => "image/jpeg", // To-Do?
+                       "media:width" => 175,
+                       "media:height" => 175,
+                       "href" => $owner["photo"]);
+       xml_add_element($doc, $author, "link", "", $attributes);
+
+       if (isset($owner["thumb"])) {
+               $attributes = array(
+                               "rel" => "avatar",
+                               "type" => "image/jpeg", // To-Do?
+                               "media:width" => 80,
+                               "media:height" => 80,
+                               "href" => $owner["thumb"]);
+               xml_add_element($doc, $author, "link", "", $attributes);
+       }
+
+       xml_add_element($doc, $author, "poco:preferredUsername", $owner["nick"]);
+       xml_add_element($doc, $author, "poco:displayName", $owner["name"]);
+       xml_add_element($doc, $author, "poco:note", $owner["about"]);
+
+       if (trim($owner["location"]) != "") {
+               $element = $doc->createElement("poco:address");
+               xml_add_element($doc, $element, "poco:formatted", $owner["location"]);
+               $author->appendChild($element);
+       }
+
+       if (trim($profile["homepage"]) != "") {
+               $urls = $doc->createElement("poco:urls");
+               xml_add_element($doc, $urls, "poco:type", "homepage");
+               xml_add_element($doc, $urls, "poco:value", $profile["homepage"]);
+               xml_add_element($doc, $urls, "poco:primary", "true");
+               $author->appendChild($urls);
+       }
+
+       if (count($profile)) {
+               xml_add_element($doc, $author, "followers", "", array("url" => $a->get_baseurl()."/viewcontacts/".$owner["nick"]));
+               xml_add_element($doc, $author, "statusnet:profile_info", "", array("local_id" => $owner["uid"]));
+       }
+
+       return $author;
+}
+
+/** 
+ * @TODO Picture attachments should look like this:
+ *     <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
+ *     class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
+ * 
+*/
+
+function ostatus_entry($doc, $item, $owner, $toplevel = false, $repeat = false) {
+       $a = get_app();
+
+       $is_repeat = false;
+
+/*     if (!$repeat) {
+               $repeated_guid = get_reshared_guid($item);
+
+               if ($repeated_guid != "") {
+                       $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
+                               intval($owner["uid"]), dbesc($repeated_guid));
+                       if ($r) {
+                               $repeated_item = $r[0];
+                               $is_repeat = true;
+                       }
+               }
+       }
+*/
+       if (!$toplevel AND !$repeat) {
+               $entry = $doc->createElement("entry");
+               $title = sprintf("New note by %s", $owner["nick"]);
+       } elseif (!$toplevel AND $repeat) {
+               $entry = $doc->createElement("activity:object");
+               $title = sprintf("New note by %s", $owner["nick"]);
+       } else {
+               $entry = $doc->createElementNS(NAMESPACE_ATOM1, "entry");
+
+               $entry->setAttribute("xmlns:thr", NAMESPACE_THREAD);
+               $entry->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
+               $entry->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
+               $entry->setAttribute("xmlns:media", NAMESPACE_MEDIA);
+               $entry->setAttribute("xmlns:poco", NAMESPACE_POCO);
+               $entry->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
+               $entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
+
+               $author = ostatus_add_author($doc, $owner);
+               $entry->appendChild($author);
+
+               $title = sprintf("New comment by %s", $owner["nick"]);
+       }
+
+       // To use the object-type "bookmark" we have to implement these elements:
+       //
+       // <activity:object-type>http://activitystrea.ms/schema/1.0/bookmark</activity:object-type>
+       // <title>Historic Rocket Landing</title>
+       // <summary>Nur ein Testbeitrag.</summary>
+       // <link rel="related" href="https://www.youtube.com/watch?v=9pillaOxGCo"/>
+       // <link rel="preview" href="https://pirati.cc/file/thumb-4526-450x338-b48c8055f0c2fed0c3f67adc234c4b99484a90c42ed3cac73dc1081a4d0a7bc1.jpg.jpg" media:width="450" media:height="338"/>
+       //
+       // But: it seems as if it doesn't federate well between the GS servers
+       // So we just set it to "note" to be sure that it reaches their target systems
+
+       if (!$repeat)
+               xml_add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
+       else
+               xml_add_element($doc, $entry, "activity:object-type", NAMESPACE_ACTIVITY_SCHEMA.'activity');
+
+       xml_add_element($doc, $entry, "id", $item["uri"]);
+       xml_add_element($doc, $entry, "title", $title);
+
+       if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid'])
+               $body = fix_private_photos($item['body'],$owner['uid'],$item, 0);
+       else
+               $body = $item['body'];
+
+       $body = ostatus_format_picture_post($body);
+
+       if ($item['title'] != "")
+               $body = "[b]".$item['title']."[/b]\n\n".$body;
+
+       //$body = bb_remove_share_information($body);
+       $body = bbcode($body, false, false, 7);
+
+       xml_add_element($doc, $entry, "content", $body, array("type" => "html"));
+
+       xml_add_element($doc, $entry, "link", "", array("rel" => "alternate", "type" => "text/html",
+                                                       "href" => $a->get_baseurl()."/display/".$item["guid"]));
+
+       xml_add_element($doc, $entry, "status_net", "", array("notice_id" => $item["id"]));
+
+       if (!$is_repeat)
+               xml_add_element($doc, $entry, "activity:verb", construct_verb($item));
+       else
+               xml_add_element($doc, $entry, "activity:verb", ACTIVITY_SHARE);
+
+       xml_add_element($doc, $entry, "published", datetime_convert("UTC","UTC",$item["created"]."+00:00",ATOM_TIME));
+       xml_add_element($doc, $entry, "updated", datetime_convert("UTC","UTC",$item["edited"]."+00:00",ATOM_TIME));
+
+       if ($is_repeat) {
+               $repeated_owner = array();
+               $repeated_owner["name"] = $repeated_item["author-name"];
+               $repeated_owner["url"] = $repeated_item["author-link"];
+               $repeated_owner["photo"] = $repeated_item["author-avatar"];
+               $repeated_owner["nick"] = $repeated_owner["name"];
+               $repeated_owner["location"] = "";
+               $repeated_owner["about"] = "";
+               $repeated_owner["uid"] = 0;
+
+               // Fetch the missing data from the global contacts
+               $r =q("SELECT * FROM `gcontact` WHERE `nurl` = '%s'", normalise_link($repeated_item["author-link"]));
+               if ($r) {
+                       if ($r[0]["nick"] != "")
+                               $repeated_owner["nick"] = $r[0]["nick"];
+
+                       $repeated_owner["location"] = $r[0]["location"];
+                       $repeated_owner["about"] = $r[0]["about"];
+               }
+
+               $entry_repeat = ostatus_entry($doc, $repeated_item, $repeated_owner, false, true);
+               $entry->appendChild($entry_repeat);
+       } elseif ($repeat) {
+               $author = ostatus_add_author($doc, $owner);
+               $entry->appendChild($author);
+       }
+
+       $mentioned = array();
+
+       if (($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
+               $parent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `id` = %d", intval($item["parent"]));
+               $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
+
+               $attributes = array(
+                               "ref" => $parent_item,
+                               "type" => "text/html",
+                               "href" => $a->get_baseurl()."/display/".$parent[0]["guid"]);
+               xml_add_element($doc, $entry, "thr:in-reply-to", "", $attributes);
+
+               $attributes = array(
+                               "rel" => "related",
+                               "href" => $a->get_baseurl()."/display/".$parent[0]["guid"]);
+               xml_add_element($doc, $entry, "link", "", $attributes);
+
+               $mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
+               $mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
+
+               $thrparent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
+                               intval($owner["uid"]),
+                               dbesc($parent_item));
+               if ($thrparent) {
+                       $mentioned[$thrparent[0]["author-link"]] = $thrparent[0]["author-link"];
+                       $mentioned[$thrparent[0]["owner-link"]] = $thrparent[0]["owner-link"];
+               }
+       }
+
+       xml_add_element($doc, $entry, "link", "", array("rel" => "ostatus:conversation",
+                                                       "href" => $a->get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]));
+       xml_add_element($doc, $entry, "ostatus:conversation", $a->get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]);
+
+       $tags = item_getfeedtags($item);
+
+       if(count($tags))
+               foreach($tags as $t)
+                       if ($t[0] == "@")
+                               $mentioned[$t[1]] = $t[1];
+
+       // Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
+       $newmentions = array();
+       foreach ($mentioned AS $mention) {
+               $newmentions[str_replace("http://", "https://", $mention)] = str_replace("http://", "https://", $mention);
+               $newmentions[str_replace("https://", "http://", $mention)] = str_replace("https://", "http://", $mention);
+       }
+       $mentioned = $newmentions;
+
+       foreach ($mentioned AS $mention) {
+               $r = q("SELECT `forum`, `prv` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
+                       intval($owner["uid"]),
+                       dbesc(normalise_link($mention)));
+               if ($r[0]["forum"] OR $r[0]["prv"])
+                       xml_add_element($doc, $entry, "link", "", array("rel" => "mentioned",
+                                                                               "ostatus:object-type" => ACTIVITY_OBJ_GROUP,
+                                                                               "href" => $mention));
+               else
+                       xml_add_element($doc, $entry, "link", "", array("rel" => "mentioned",
+                                                                               "ostatus:object-type" => ACTIVITY_OBJ_PERSON,
+                                                                               "href" => $mention));
+       }
+
+       if (!$item["private"])
+               xml_add_element($doc, $entry, "link", "", array("rel" => "mentioned",
+                                                               "ostatus:object-type" => "http://activitystrea.ms/schema/1.0/collection",
+                                                               "href" => "http://activityschema.org/collection/public"));
+
+       if(count($tags))
+               foreach($tags as $t)
+                       if ($t[0] != "@")
+                               xml_add_element($doc, $entry, "category", "", array("term" => $t[2]));
+
+       ostatus_get_attachment($doc, $entry, $item);
+
+       /// @TODO
+       /// The API call has yet to be implemented
+       //$attributes = array("href" => $a->get_baseurl()."/api/statuses/show/".$item["id"].".atom",
+       //              "rel" => "self", "type" => "application/atom+xml");
+       //xml_add_element($doc, $entry, "link", "", $attributes);
+
+       //$attributes = array("href" => $a->get_baseurl()."/api/statuses/show/".$item["id"].".atom",
+       //              "rel" => "edit", "type" => "application/atom+xml");
+       //xml_add_element($doc, $entry, "link", "", $attributes);
+
+       $app = $item["app"];
+       if ($app == "")
+               $app = "web";
+
+
+       $attributes = array("local_id" => $item["id"], "source" => $app);
+       if ($is_repeat)
+               $attributes["repeat_of"] = $repeated_item["id"];
+
+       xml_add_element($doc, $entry, "statusnet:notice_info", "", $attributes);
+
+       return $entry;
+}
+
+function ostatus_feed(&$a, $owner_nick, $last_update) {
+
+       $r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
+                       FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
+                       WHERE `contact`.`self` AND `user`.`nickname` = '%s' LIMIT 1",
+                       dbesc($owner_nick));
+       if (!$r)
+               return;
+
+       $owner = $r[0];
+
+       if(!strlen($last_update))
+               $last_update = 'now -30 days';
+
+       $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
+
+       $items = q("SELECT STRAIGHT_JOIN `item`.*, `item`.`id` AS `item_id` FROM `item`
+                       INNER JOIN `thread` ON `thread`.`iid` = `item`.`parent`
+                       LEFT JOIN `item` AS `thritem` ON `thritem`.`uri`=`item`.`thr-parent` AND `thritem`.`uid`=`item`.`uid`
+                       WHERE `item`.`uid` = %d AND `item`.`received` > '%s' AND NOT `item`.`private` AND NOT `item`.`deleted`
+                               AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = '' AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
+                               AND ((`item`.`wall` AND (`item`.`parent` = `item`.`id`))
+                                       OR (`item`.`network` = '%s' AND ((`thread`.`network` IN ('%s', '%s')) OR (`thritem`.`network` IN ('%s', '%s')))) AND `thread`.`mention`)
+                               AND ((`item`.`owner-link` IN ('%s', '%s') AND (`item`.`parent` = `item`.`id`))
+                                       OR (`item`.`author-link` IN ('%s', '%s')))
+                       ORDER BY `item`.`received` DESC
+                       LIMIT 0, 300",
+                       intval($owner["uid"]), dbesc($check_date), dbesc(NETWORK_DFRN),
+                       //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
+                       //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
+                       dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
+                       dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
+                       dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"])),
+                       dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"]))
+               );
+
+       $doc = new DOMDocument('1.0', 'utf-8');
+       $doc->formatOutput = true;
+
+       $root = ostatus_add_header($doc, $owner);
+
+       foreach ($items AS $item) {
+               $entry = ostatus_entry($doc, $item, $owner);
+               $root->appendChild($entry);
+       }
+
+       return(trim($doc->saveXML()));
+}
+
+function ostatus_salmon($item,$owner) {
+
+       $doc = new DOMDocument('1.0', 'utf-8');
+       $doc->formatOutput = true;
+
+       $entry = ostatus_entry($doc, $item, $owner, true);
+
+       $doc->appendChild($entry);
+
+       return(trim($doc->saveXML()));
+}
 ?>