X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FProtocol%2FOStatus.php;h=36f3faf2de5de6bcf5e9d9822f99dcbbd60c6f4e;hb=e952d6677bf01ab23f80c4ffbe0e4e3d0c1ef43b;hp=7ad6f50f1f05e6eab582a5939d6716ddd14eeee2;hpb=af0e10ee20174a3d127bd1e3fc7951dfabe0b0c1;p=friendica.git

diff --git a/src/Protocol/OStatus.php b/src/Protocol/OStatus.php
index 7ad6f50f1f..36f3faf2de 100644
--- a/src/Protocol/OStatus.php
+++ b/src/Protocol/OStatus.php
@@ -4,29 +4,29 @@
  */
 namespace Friendica\Protocol;
 
+use dba;
+use DOMDocument;
+use DOMXPath;
 use Friendica\Content\Text\BBCode;
+use Friendica\Content\Text\HTML;
 use Friendica\Core\Cache;
 use Friendica\Core\Config;
 use Friendica\Core\L10n;
+use Friendica\Core\Lock;
 use Friendica\Core\System;
 use Friendica\Database\DBM;
 use Friendica\Model\Contact;
 use Friendica\Model\Conversation;
 use Friendica\Model\GContact;
 use Friendica\Model\Item;
+use Friendica\Model\User;
 use Friendica\Network\Probe;
 use Friendica\Object\Image;
 use Friendica\Util\DateTimeFormat;
-use Friendica\Util\Lock;
 use Friendica\Util\Network;
 use Friendica\Util\XML;
-use dba;
-use DOMDocument;
-use DOMXPath;
 
 require_once 'include/dba.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';
@@ -55,26 +55,29 @@ class OStatus
 	private static function fetchAuthor($xpath, $context, $importer, &$contact, $onlyfetch)
 	{
 		$author = [];
-		$author["author-link"] = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
-		$author["author-name"] = $xpath->evaluate('atom:author/atom:name/text()', $context)->item(0)->nodeValue;
-		$addr = $xpath->evaluate('atom:author/atom:email/text()', $context)->item(0)->nodeValue;
+		$author["author-link"] = XML::getFirstNodeValue($xpath, 'atom:author/atom:uri/text()', $context);
+		$author["author-name"] = XML::getFirstNodeValue($xpath, 'atom:author/atom:name/text()', $context);
+		$addr = XML::getFirstNodeValue($xpath, 'atom:author/atom:email/text()', $context);
 
 		$aliaslink = $author["author-link"];
 
-		$alternate = $xpath->query("atom:author/atom:link[@rel='alternate']", $context)->item(0)->attributes;
-		if (is_object($alternate)) {
-			foreach ($alternate as $attributes) {
+		$alternate_item = $xpath->query("atom:author/atom:link[@rel='alternate']", $context)->item(0);
+		if (is_object($alternate_item)) {
+			foreach ($alternate_item->attributes as $attributes) {
 				if (($attributes->name == "href") && ($attributes->textContent != "")) {
 					$author["author-link"] = $attributes->textContent;
 				}
 			}
 		}
+		$author["author-id"] = Contact::getIdForURL($author["author-link"]);
+
 		$author["contact-id"] = $contact["id"];
 
 		$contact = null;
 		if ($aliaslink != '') {
-			$condition = ["`uid` = ? AND `alias` = ? AND `network` != ?",
-					$importer["uid"], $aliaslink, NETWORK_STATUSNET];
+			$condition = ["`uid` = ? AND `alias` = ? AND `network` != ? AND `rel` IN (?, ?)",
+					$importer["uid"], $aliaslink, NETWORK_STATUSNET,
+					CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
 			$contact = dba::selectFirst('contact', [], $condition);
 		}
 
@@ -83,14 +86,16 @@ class OStatus
 				$aliaslink = $author["author-link"];
 			}
 
-			$condition = ["`uid` = ? AND `nurl` IN (?, ?) AND `network` != ?", $importer["uid"],
-					normalise_link($author["author-link"]), normalise_link($aliaslink), NETWORK_STATUSNET];
+			$condition = ["`uid` = ? AND `nurl` IN (?, ?) AND `network` != ? AND `rel` IN (?, ?)",
+					$importer["uid"], normalise_link($author["author-link"]), normalise_link($aliaslink),
+					NETWORK_STATUSNET, CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
 			$contact = dba::selectFirst('contact', [], $condition);
 		}
 
 		if (!DBM::is_result($contact) && ($addr != '')) {
-			$condition = ["`uid` = ? AND `addr` = ? AND `network` != ?",
-					$importer["uid"], $addr, NETWORK_STATUSNET];
+			$condition = ["`uid` = ? AND `addr` = ? AND `network` != ? AND `rel` IN (?, ?)",
+					$importer["uid"], $addr, NETWORK_STATUSNET,
+					CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
 			$contact = dba::selectFirst('contact', [], $condition);
 		}
 
@@ -123,14 +128,12 @@ class OStatus
 			$author["author-avatar"] = Probe::fixAvatar(current($avatarlist), $author["author-link"]);
 		}
 
-		$displayname = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
+		$displayname = XML::getFirstNodeValue($xpath, 'atom:author/poco:displayName/text()', $context);
 		if ($displayname != "") {
 			$author["author-name"] = $displayname;
 		}
 
-		$author["owner-name"] = $author["author-name"];
-		$author["owner-link"] = $author["author-link"];
-		$author["owner-avatar"] = $author["author-avatar"];
+		$author["owner-id"] = $author["author-id"];
 
 		// Only update the contacts if it is an OStatus contact
 		if (DBM::is_result($contact) && ($contact['id'] > 0) && !$onlyfetch && ($contact["network"] == NETWORK_OSTATUS)) {
@@ -152,27 +155,27 @@ class OStatus
 			$contact['url'] = $author["author-link"];
 			$contact['nurl'] = normalise_link($contact['url']);
 
-			$value = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
+			$value = XML::getFirstNodeValue($xpath, 'atom:author/atom:uri/text()', $context);
 			if ($value != "") {
 				$contact["alias"] = $value;
 			}
 
-			$value = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
+			$value = XML::getFirstNodeValue($xpath, 'atom:author/poco:displayName/text()', $context);
 			if ($value != "") {
 				$contact["name"] = $value;
 			}
 
-			$value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
+			$value = XML::getFirstNodeValue($xpath, 'atom:author/poco:preferredUsername/text()', $context);
 			if ($value != "") {
 				$contact["nick"] = $value;
 			}
 
-			$value = $xpath->evaluate('atom:author/poco:note/text()', $context)->item(0)->nodeValue;
+			$value = XML::getFirstNodeValue($xpath, 'atom:author/poco:note/text()', $context);
 			if ($value != "") {
-				$contact["about"] = html2bbcode($value);
+				$contact["about"] = HTML::toBBCode($value);
 			}
 
-			$value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
+			$value = XML::getFirstNodeValue($xpath, 'atom:author/poco:address/poco:formatted/text()', $context);
 			if ($value != "") {
 				$contact["location"] = $value;
 			}
@@ -187,7 +190,7 @@ class OStatus
 			}
 
 			// Ensure that we are having this contact (with uid=0)
-			$cid = Contact::getIdForURL($aliaslink, 0);
+			$cid = Contact::getIdForURL($aliaslink, 0, true);
 
 			if ($cid) {
 				$fields = ['url', 'nurl', 'name', 'nick', 'alias', 'about', 'location'];
@@ -203,12 +206,16 @@ class OStatus
 				dba::update('contact', $fields, ['id' => $cid], $old_contact);
 
 				// Update the avatar
-				Contact::updateAvatar($author["author-avatar"], 0, $cid);
+				if (!empty($author["author-avatar"])) {
+					Contact::updateAvatar($author["author-avatar"], 0, $cid);
+				}
 			}
 
 			$contact["generation"] = 2;
 			$contact["hide"] = false; // OStatus contacts are never hidden
-			$contact["photo"] = $author["author-avatar"];
+			if (!empty($author["author-avatar"])) {
+				$contact["photo"] = $author["author-avatar"];
+			}
 			$gcid = GContact::update($contact);
 
 			GContact::link($gcid, $contact["uid"], $contact["id"]);
@@ -244,13 +251,12 @@ class OStatus
 		$xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 		$xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 
-		$entries = $xpath->query('/atom:entry');
+		$contact = ["id" => 0];
 
-		foreach ($entries as $entry) {
-			// fetch the author
-			$author = self::fetchAuthor($xpath, $entry, $importer, $contact, true);
-			return $author;
-		}
+		// Fetch the first author
+		$authordata = $xpath->query('//author')->item(0);
+		$author = self::fetchAuthor($xpath, $authordata, $importer, $contact, true);
+		return $author;
 	}
 
 	/**
@@ -323,12 +329,15 @@ class OStatus
 		$xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 
 		$hub = "";
-		$hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
-		if (is_object($hub_attributes)) {
-			foreach ($hub_attributes as $hub_attribute) {
-				if ($hub_attribute->name == "href") {
-					$hub = $hub_attribute->textContent;
-					logger("Found hub ".$hub, LOGGER_DEBUG);
+		$hub_items = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0);
+		if (is_object($hub_items)) {
+			$hub_attributes = $hub_items->attributes;
+			if (is_object($hub_attributes)) {
+				foreach ($hub_attributes as $hub_attribute) {
+					if ($hub_attribute->name == "href") {
+						$hub = $hub_attribute->textContent;
+						logger("Found hub ".$hub, LOGGER_DEBUG);
+					}
 				}
 			}
 		}
@@ -336,10 +345,10 @@ class OStatus
 		$header = [];
 		$header["uid"] = $importer["uid"];
 		$header["network"] = NETWORK_OSTATUS;
-		$header["type"] = "remote";
+		$header["type"] = "remote-comment";
 		$header["wall"] = 0;
 		$header["origin"] = 0;
-		$header["gravity"] = GRAVITY_PARENT;
+		$header["gravity"] = GRAVITY_COMMENT;
 
 		$first_child = $doc->firstChild->tagName;
 
@@ -388,7 +397,7 @@ class OStatus
 				$author = self::fetchAuthor($xpath, $entry, $importer, $contact, $stored);
 			}
 
-			$value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $entry)->item(0)->nodeValue;
+			$value = XML::getFirstNodeValue($xpath, 'atom:author/poco:preferredUsername/text()', $entry);
 			if ($value != "") {
 				$nickname = $value;
 			} else {
@@ -397,9 +406,9 @@ class OStatus
 
 			$item = array_merge($header, $author);
 
-			$item["uri"] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
+			$item["uri"] = XML::getFirstNodeValue($xpath, 'atom:id/text()', $entry);
 
-			$item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
+			$item["verb"] = XML::getFirstNodeValue($xpath, 'activity:verb/text()', $entry);
 
 			// Delete a message
 			if (in_array($item["verb"], ['qvitter-delete-notice', ACTIVITY_DELETE, 'delete'])) {
@@ -414,7 +423,7 @@ class OStatus
 			}
 
 			// Deletions come with the same uri, so we check for duplicates after processing deletions
-			if (dba::exists('item', ['uid' => $importer["uid"], 'uri' => $item["uri"]])) {
+			if (Item::exists(['uid' => $importer["uid"], 'uri' => $item["uri"]])) {
 				logger('Post with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.', LOGGER_DEBUG);
 				continue;
 			} else {
@@ -439,6 +448,7 @@ class OStatus
 			}
 
 			if ($item["verb"] == NAMESPACE_OSTATUS."/unfollow") {
+				$dummy = null;
 				Contact::removeFollower($importer, $contact, $item, $dummy);
 				continue;
 			}
@@ -447,9 +457,11 @@ class OStatus
 				$orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
 				logger("Favorite ".$orig_uri." ".print_r($item, true));
 
+				$item["type"] = "activity";
 				$item["verb"] = ACTIVITY_LIKE;
 				$item["parent-uri"] = $orig_uri;
-				$item["gravity"] = GRAVITY_LIKE;
+				$item["gravity"] = GRAVITY_ACTIVITY;
+				$item["object-type"] = ACTIVITY_OBJ_NOTE;
 			}
 
 			// http://activitystrea.ms/schema/1.0/rsvp-yes
@@ -466,6 +478,11 @@ class OStatus
 					if (!$valid) {
 						// If not, then it depends on this setting
 						$valid = !Config::get('system', 'ostatus_full_threads');
+						if ($valid) {
+							logger("Item with uri ".self::$itemlist[0]['uri']." will be imported due to the system settings.", LOGGER_DEBUG);
+						}
+					} else {
+						logger("Item with uri ".self::$itemlist[0]['uri']." belongs to a contact (".self::$itemlist[0]['contact-id']."). It will be imported.", LOGGER_DEBUG);
 					}
 					if ($valid) {
 						// Never post a thread when the only interaction by our contact was a like
@@ -476,10 +493,16 @@ class OStatus
 								$valid = true;
 							}
 						}
+						if ($valid) {
+							logger("Item with uri ".self::$itemlist[0]['uri']." will be imported since the thread contains posts or shares.", LOGGER_DEBUG);
+						}
 					}
 				} else {
 					// But we will only import complete threads
-					$valid = dba::exists('item', ['uid' => $importer["uid"], 'uri' => self::$itemlist[0]['parent-uri']]);
+					$valid = Item::exists(['uid' => $importer["uid"], 'uri' => self::$itemlist[0]['parent-uri']]);
+					if ($valid) {
+						logger("Item with uri ".self::$itemlist[0]["uri"]." belongs to parent ".self::$itemlist[0]['parent-uri']." of user ".$importer["uid"].". It will be imported.", LOGGER_DEBUG);
+					}
 				}
 
 				if ($valid) {
@@ -493,16 +516,16 @@ class OStatus
 						}
 					}
 					foreach (self::$itemlist as $item) {
-						$found = dba::exists('item', ['uid' => $importer["uid"], 'uri' => $item["uri"]]);
+						$found = Item::exists(['uid' => $importer["uid"], 'uri' => $item["uri"]]);
 						if ($found) {
 							logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already exists.", LOGGER_DEBUG);
 						} elseif ($item['contact-id'] < 0) {
 							logger("Item with uri ".$item["uri"]." is from a blocked contact.", LOGGER_DEBUG);
 						} else {
 							// We are having duplicated entries. Hopefully this solves it.
-							if (Lock::set('ostatus_process_item_insert')) {
+							if (Lock::acquire('ostatus_process_item_insert')) {
 								$ret = Item::insert($item);
-								Lock::remove('ostatus_process_item_insert');
+								Lock::release('ostatus_process_item_insert');
 								logger("Item with uri ".$item["uri"]." for user ".$importer["uid"].' stored. Return value: '.$ret);
 							} else {
 								$ret = Item::insert($item);
@@ -524,14 +547,13 @@ class OStatus
 	 */
 	private static function deleteNotice($item)
 	{
-		$condition = ['uid' => $item['uid'], 'author-link' => $item['author-link'], 'uri' => $item['uri']];
-		$deleted = dba::selectFirst('item', ['id', 'parent-uri'], $condition);
-		if (!DBM::is_result($deleted)) {
-			logger('Item from '.$item['author-link'].' with uri '.$item['uri'].' for user '.$item['uid']." wasn't found. We don't delete it. ");
+		$condition = ['uid' => $item['uid'], 'author-id' => $item['author-id'], 'uri' => $item['uri']];
+		if (!Item::exists($condition)) {
+			logger('Item from '.$item['author-link'].' with uri '.$item['uri'].' for user '.$item['uid']." wasn't found. We don't delete it.");
 			return;
 		}
 
-		Item::deleteById($deleted["id"]);
+		Item::delete($condition);
 
 		logger('Deleted item with uri '.$item['uri'].' for user '.$item['uid']);
 	}
@@ -547,19 +569,18 @@ class OStatus
 	 */
 	private static function processPost($xpath, $entry, &$item, $importer)
 	{
-		$item["body"] = html2bbcode($xpath->query('atom:content/text()', $entry)->item(0)->nodeValue);
-		$item["object-type"] = $xpath->query('activity:object-type/text()', $entry)->item(0)->nodeValue;
+		$item["body"] = HTML::toBBCode(XML::getFirstNodeValue($xpath, 'atom:content/text()', $entry));
+		$item["object-type"] = XML::getFirstNodeValue($xpath, 'activity:object-type/text()', $entry);
 		if (($item["object-type"] == ACTIVITY_OBJ_BOOKMARK) || ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
-			$item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
-			$item["body"] = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
+			$item["title"] = XML::getFirstNodeValue($xpath, 'atom:title/text()', $entry);
+			$item["body"] = XML::getFirstNodeValue($xpath, 'atom:summary/text()', $entry);
 		} elseif ($item["object-type"] == ACTIVITY_OBJ_QUESTION) {
-			$item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
+			$item["title"] = XML::getFirstNodeValue($xpath, 'atom:title/text()', $entry);
 		}
 
-		$item["created"] = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
-		$item["edited"] = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
-		$conversation = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
-		$item['conversation-uri'] = $conversation;
+		$item["created"] = XML::getFirstNodeValue($xpath, 'atom:published/text()', $entry);
+		$item["edited"] = XML::getFirstNodeValue($xpath, 'atom:updated/text()', $entry);
+		$item['conversation-uri'] = XML::getFirstNodeValue($xpath, 'ostatus:conversation/text()', $entry);
 
 		$conv = $xpath->query('ostatus:conversation', $entry);
 		if (is_object($conv->item(0))) {
@@ -598,9 +619,12 @@ class OStatus
 				foreach ($category->attributes as $attributes) {
 					if ($attributes->name == "term") {
 						$term = $attributes->textContent;
-						if (strlen($item["tag"])) {
+						if (!empty($item["tag"])) {
 							$item["tag"] .= ',';
+						} else {
+							$item["tag"] = '';
 						}
+
 						$item["tag"] .= "#[url=".System::baseUrl()."/search?tag=".$term."]".$term."[/url]";
 					}
 				}
@@ -647,9 +671,10 @@ class OStatus
 
 		// Mastodon Content Warning
 		if (($item["verb"] == ACTIVITY_POST) && $xpath->evaluate('boolean(atom:summary)', $entry)) {
-			$clear_text = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
-
-			$item["body"] = html2bbcode($clear_text) . '[spoiler]' . $item["body"] . '[/spoiler]';
+			$clear_text = XML::getFirstNodeValue($xpath, 'atom:summary/text()', $entry);
+			if (!empty($clear_text)) {
+				$item['content-warning'] = HTML::toBBCode($clear_text);
+			}
 		}
 
 		if (($self != '') && empty($item['protocol'])) {
@@ -660,17 +685,18 @@ class OStatus
 			self::fetchConversation($item['conversation-href'], $item['conversation-uri']);
 		}
 
-		if (isset($item["parent-uri"]) && ($related != '')) {
-			if (!dba::exists('item', ['uid' => $importer["uid"], 'uri' => $item['parent-uri']])) {
-				self::fetchRelated($related, $item["parent-uri"], $importer);
+		if (isset($item["parent-uri"])) {
+			if (!Item::exists(['uid' => $importer["uid"], 'uri' => $item['parent-uri']])) {
+				if ($related != '') {
+					self::fetchRelated($related, $item["parent-uri"], $importer);
+				}
 			} else {
 				logger('Reply with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.', LOGGER_DEBUG);
 			}
-
-			$item["type"] = 'remote-comment';
-			$item["gravity"] = GRAVITY_COMMENT;
 		} else {
 			$item["parent-uri"] = $item["uri"];
+			$item["gravity"] = GRAVITY_PARENT;
+			$item["type"] = "remote";
 		}
 
 		if (($item['author-link'] != '') && !empty($item['protocol'])) {
@@ -771,7 +797,7 @@ class OStatus
 
 			$conv_data['protocol'] = PROTOCOL_SPLITTED_CONV;
 			$conv_data['network'] = NETWORK_OSTATUS;
-			$conv_data['uri'] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
+			$conv_data['uri'] = XML::getFirstNodeValue($xpath, 'atom:id/text()', $entry);
 
 			$inreplyto = $xpath->query('thr:in-reply-to', $entry);
 			if (is_object($inreplyto->item(0))) {
@@ -782,8 +808,7 @@ class OStatus
 				}
 			}
 
-			$conv = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
-			$conv_data['conversation-uri'] = $conv;
+			$conv_data['conversation-uri'] = XML::getFirstNodeValue($xpath, 'ostatus:conversation/text()', $entry);
 
 			$conv = $xpath->query('ostatus:conversation', $entry);
 			if (is_object($conv->item(0))) {
@@ -987,32 +1012,32 @@ class OStatus
 
 		$link_data = [];
 
-		$orig_uri = $xpath->query('atom:id/text()', $activityobjects)->item(0)->nodeValue;
+		$orig_uri = XML::getFirstNodeValue($xpath, 'atom:id/text()', $activityobjects);
 
 		$links = $xpath->query("atom:link", $activityobjects);
 		if ($links) {
 			$link_data = self::processLinks($links, $item);
 		}
 
-		$orig_body = $xpath->query('atom:content/text()', $activityobjects)->item(0)->nodeValue;
-		$orig_created = $xpath->query('atom:published/text()', $activityobjects)->item(0)->nodeValue;
-		$orig_edited = $xpath->query('atom:updated/text()', $activityobjects)->item(0)->nodeValue;
+		$orig_body = XML::getFirstNodeValue($xpath, 'atom:content/text()', $activityobjects);
+		$orig_created = XML::getFirstNodeValue($xpath, 'atom:published/text()', $activityobjects);
+		$orig_edited = XML::getFirstNodeValue($xpath, 'atom:updated/text()', $activityobjects);
 
 		$orig_author = self::fetchAuthor($xpath, $activityobjects, $importer, $dummy, false);
 
 		$item["author-name"] = $orig_author["author-name"];
 		$item["author-link"] = $orig_author["author-link"];
-		$item["author-avatar"] = $orig_author["author-avatar"];
+		$item["author-id"] = $orig_author["author-id"];
 
-		$item["body"] = html2bbcode($orig_body);
+		$item["body"] = HTML::toBBCode($orig_body);
 		$item["created"] = $orig_created;
 		$item["edited"] = $orig_edited;
 
 		$item["uri"] = $orig_uri;
 
-		$item["verb"] = $xpath->query('activity:verb/text()', $activityobjects)->item(0)->nodeValue;
+		$item["verb"] = XML::getFirstNodeValue($xpath, 'activity:verb/text()', $activityobjects);
 
-		$item["object-type"] = $xpath->query('activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
+		$item["object-type"] = XML::getFirstNodeValue($xpath, 'activity:object-type/text()', $activityobjects);
 
 		$inreplyto = $xpath->query('thr:in-reply-to', $activityobjects);
 		if (is_object($inreplyto->item(0))) {
@@ -1041,7 +1066,7 @@ class OStatus
 		foreach ($links as $link) {
 			$attribute = self::readAttributes($link);
 
-			if (($attribute['rel'] != "") && ($attribute['href'] != "")) {
+			if (!empty($attribute['rel']) && !empty($attribute['href'])) {
 				switch ($attribute['rel']) {
 					case "alternate":
 						$item["plink"] = $attribute['href'];
@@ -1063,13 +1088,15 @@ class OStatus
 						if ($filetype == 'image') {
 							$link_data['add_body'] .= "\n[img]".$attribute['href'].'[/img]';
 						} else {
-							if (strlen($item["attach"])) {
+							if (!empty($item["attach"])) {
 								$item["attach"] .= ',';
+							} else {
+								$item["attach"] = '';
 							}
 							if (!isset($attribute['length'])) {
 								$attribute['length'] = "0";
 							}
-							$item["attach"] .= '[attach]href="'.$attribute['href'].'" length="'.$attribute['length'].'" type="'.$attribute['type'].'" title="'.$attribute['title'].'"[/attach]';
+							$item["attach"] .= '[attach]href="'.$attribute['href'].'" length="'.$attribute['length'].'" type="'.$attribute['type'].'" title="'.defaults($attribute, 'title', '').'"[/attach]';
 						}
 						break;
 					case "related":
@@ -1083,7 +1110,7 @@ class OStatus
 						}
 						break;
 					case "self":
-						if ($item["plink"] == '') {
+						if (empty($item["plink"])) {
 							$item["plink"] = $attribute['href'];
 						}
 						$link_data['self'] = $attribute['href'];
@@ -1157,12 +1184,12 @@ class OStatus
 
 		$guid = "";
 		preg_match("/guid='(.*?)'/ism", $attributes, $matches);
-		if ($matches[1] != "") {
+		if (!empty($matches[1])) {
 			$guid = $matches[1];
 		}
 
 		preg_match('/guid="(.*?)"/ism', $attributes, $matches);
-		if ($matches[1] != "") {
+		if (!empty($matches[1])) {
 			$guid = $matches[1];
 		}
 
@@ -1273,6 +1300,13 @@ class OStatus
 			"rel" => "self", "type" => "application/atom+xml"];
 		XML::addElement($doc, $root, "link", "", $attributes);
 
+		if ($owner['account-type'] == ACCOUNT_TYPE_COMMUNITY) {
+			$condition = ['uid' => $owner['uid'], 'self' => false, 'pending' => false,
+					'archive' => false, 'hidden' => false, 'blocked' => false];
+			$members = dba::count('contact', $condition);
+			XML::addElement($doc, $root, "statusnet:group_info", "", ["member_count" => $members]);
+		}
+
 		return $root;
 	}
 
@@ -1291,7 +1325,7 @@ class OStatus
 	}
 
 	/**
-	 * @brief Adds attachement data to the XML document
+	 * @brief Adds attachment data to the XML document
 	 *
 	 * @param object $doc  XML document
 	 * @param object $root XML root element where the hub links are added
@@ -1306,11 +1340,13 @@ class OStatus
 		switch ($siteinfo["type"]) {
 			case 'photo':
 				$imgdata = Image::getInfoFromURL($siteinfo["image"]);
-				$attributes = ["rel" => "enclosure",
-						"href" => $siteinfo["image"],
-						"type" => $imgdata["mime"],
-						"length" => intval($imgdata["size"])];
-				XML::addElement($doc, $root, "link", "", $attributes);
+				if ($imgdata) {
+					$attributes = ["rel" => "enclosure",
+							"href" => $siteinfo["image"],
+							"type" => $imgdata["mime"],
+							"length" => intval($imgdata["size"])];
+					XML::addElement($doc, $root, "link", "", $attributes);
+				}
 				break;
 			case 'video':
 				$attributes = ["rel" => "enclosure",
@@ -1326,12 +1362,14 @@ class OStatus
 
 		if (!Config::get('system', 'ostatus_not_attach_preview') && ($siteinfo["type"] != "photo") && isset($siteinfo["image"])) {
 			$imgdata = Image::getInfoFromURL($siteinfo["image"]);
-			$attributes = ["rel" => "enclosure",
-					"href" => $siteinfo["image"],
-					"type" => $imgdata["mime"],
-					"length" => intval($imgdata["size"])];
+			if ($imgdata) {
+				$attributes = ["rel" => "enclosure",
+						"href" => $siteinfo["image"],
+						"type" => $imgdata["mime"],
+						"length" => intval($imgdata["size"])];
 
-			XML::addElement($doc, $root, "link", "", $attributes);
+				XML::addElement($doc, $root, "link", "", $attributes);
+			}
 		}
 
 		$arr = explode('[/attach],', $item['attach']);
@@ -1364,16 +1402,22 @@ class OStatus
 	 *
 	 * @return object author element
 	 */
-	private static function addAuthor($doc, $owner)
+	private static function addAuthor($doc, $owner, $show_profile = true)
 	{
 		$profile = dba::selectFirst('profile', ['homepage', 'publish'], ['uid' => $owner['uid'], 'is-default' => true]);
 		$author = $doc->createElement("author");
 		XML::addElement($doc, $author, "id", $owner["url"]);
-		XML::addElement($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
+		if ($owner['account-type'] == ACCOUNT_TYPE_COMMUNITY) {
+			XML::addElement($doc, $author, "activity:object-type", ACTIVITY_OBJ_GROUP);
+		} else {
+			XML::addElement($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
+		}
 		XML::addElement($doc, $author, "uri", $owner["url"]);
 		XML::addElement($doc, $author, "name", $owner["nick"]);
 		XML::addElement($doc, $author, "email", $owner["addr"]);
-		XML::addElement($doc, $author, "summary", bbcode($owner["about"], false, false, 7));
+		if ($show_profile) {
+			XML::addElement($doc, $author, "summary", BBCode::convert($owner["about"], false, 7));
+		}
 
 		$attributes = ["rel" => "alternate", "type" => "text/html", "href" => $owner["url"]];
 		XML::addElement($doc, $author, "link", "", $attributes);
@@ -1398,15 +1442,17 @@ class OStatus
 
 		XML::addElement($doc, $author, "poco:preferredUsername", $owner["nick"]);
 		XML::addElement($doc, $author, "poco:displayName", $owner["name"]);
-		XML::addElement($doc, $author, "poco:note", bbcode($owner["about"], false, false, 7));
+		if ($show_profile) {
+			XML::addElement($doc, $author, "poco:note", BBCode::convert($owner["about"], false, 7));
 
-		if (trim($owner["location"]) != "") {
-			$element = $doc->createElement("poco:address");
-			XML::addElement($doc, $element, "poco:formatted", $owner["location"]);
-			$author->appendChild($element);
+			if (trim($owner["location"]) != "") {
+				$element = $doc->createElement("poco:address");
+				XML::addElement($doc, $element, "poco:formatted", $owner["location"]);
+				$author->appendChild($element);
+			}
 		}
 
-		if (DBM::is_result($profile)) {
+		if (DBM::is_result($profile) && !$show_profile) {
 			if (trim($profile["homepage"]) != "") {
 				$urls = $doc->createElement("poco:urls");
 				XML::addElement($doc, $urls, "poco:type", "homepage");
@@ -1417,11 +1463,12 @@ class OStatus
 
 			XML::addElement($doc, $author, "followers", "", ["url" => System::baseUrl()."/viewcontacts/".$owner["nick"]]);
 			XML::addElement($doc, $author, "statusnet:profile_info", "", ["local_id" => $owner["uid"]]);
-		}
 
-		if ($profile["publish"]) {
-			XML::addElement($doc, $author, "mastodon:scope", "public");
+			if ($profile["publish"]) {
+				XML::addElement($doc, $author, "mastodon:scope", "public");
+			}
 		}
+
 		return $author;
 	}
 
@@ -1583,24 +1630,17 @@ class OStatus
 			logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
 		}
 
-		$title = self::entryHeader($doc, $entry, $owner, $toplevel);
+		$title = self::entryHeader($doc, $entry, $owner, $item, $toplevel);
 
-		$r = q(
-			"SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' AND NOT `private` AND `network` IN ('%s', '%s', '%s') LIMIT 1",
-			intval($owner["uid"]),
-			dbesc($repeated_guid),
-			dbesc(NETWORK_DFRN),
-			dbesc(NETWORK_DIASPORA),
-			dbesc(NETWORK_OSTATUS)
-		);
-		if (DBM::is_result($r)) {
-			$repeated_item = $r[0];
-		} else {
+		$condition = ['uid' => $owner["uid"], 'guid' => $repeated_guid, 'private' => false,
+			'network' => [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS]];
+		$repeated_item = Item::selectFirst([], $condition);
+		if (!DBM::is_result($repeated_item)) {
 			return false;
 		}
-		$contact = self::contactEntry($repeated_item['author-link'], $owner);
 
-		$parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
+		$contact = self::contactEntry($repeated_item['author-link'], $owner);
+		$contact['account-type'] = $contact['contact-type'];
 
 		$title = $owner["nick"]." repeated a notice by ".$contact["nick"];
 
@@ -1612,7 +1652,7 @@ class OStatus
 
 		self::entryContent($doc, $as_object, $repeated_item, $owner, "", "", false);
 
-		$author = self::addAuthor($doc, $contact);
+		$author = self::addAuthor($doc, $contact, false);
 		$as_object->appendChild($author);
 
 		$as_object2 = $doc->createElement("activity:object");
@@ -1654,23 +1694,18 @@ class OStatus
 			logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
 		}
 
-		$title = self::entryHeader($doc, $entry, $owner, $toplevel);
+		$title = self::entryHeader($doc, $entry, $owner, $item, $toplevel);
 
 		$verb = NAMESPACE_ACTIVITY_SCHEMA."favorite";
 		self::entryContent($doc, $entry, $item, $owner, "Favorite", $verb, false);
 
 		$as_object = $doc->createElement("activity:object");
 
-		$parent = q(
-			"SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
-			dbesc($item["thr-parent"]),
-			intval($item["uid"])
-		);
-		$parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
+		$parent = Item::selectFirst([], ['uri' => $item["thr-parent"], 'uid' => $item["uid"]]);
 
-		XML::addElement($doc, $as_object, "activity:object-type", self::constructObjecttype($parent[0]));
+		XML::addElement($doc, $as_object, "activity:object-type", self::constructObjecttype($parent));
 
-		self::entryContent($doc, $as_object, $parent[0], $owner, "New entry");
+		self::entryContent($doc, $as_object, $parent, $owner, "New entry");
 
 		$entry->appendChild($as_object);
 
@@ -1777,7 +1812,7 @@ class OStatus
 
 		$item["body"] = sprintf($message, $owner["nick"], $contact["nick"]);
 
-		self::entryHeader($doc, $entry, $owner, $toplevel);
+		self::entryHeader($doc, $entry, $owner, $item, $toplevel);
 
 		self::entryContent($doc, $entry, $item, $owner, $title);
 
@@ -1805,7 +1840,7 @@ class OStatus
 			logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
 		}
 
-		$title = self::entryHeader($doc, $entry, $owner, $toplevel);
+		$title = self::entryHeader($doc, $entry, $owner, $item, $toplevel);
 
 		XML::addElement($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
 
@@ -1826,12 +1861,18 @@ class OStatus
 	 *
 	 * @return string The title for the element
 	 */
-	private static function entryHeader($doc, &$entry, $owner, $toplevel)
+	private static function entryHeader($doc, &$entry, $owner, $item, $toplevel)
 	{
 		/// @todo Check if this title stuff is really needed (I guess not)
 		if (!$toplevel) {
 			$entry = $doc->createElement("entry");
 			$title = sprintf("New note by %s", $owner["nick"]);
+
+			if ($owner['account-type'] == ACCOUNT_TYPE_COMMUNITY) {
+				$contact = self::contactEntry($item['author-link'], $owner);
+				$author = self::addAuthor($doc, $contact, false);
+				$entry->appendChild($author);
+			}
 		} else {
 			$entry = $doc->createElementNS(NAMESPACE_ATOM1, "entry");
 
@@ -1879,7 +1920,7 @@ class OStatus
 			$body = "[b]".$item['title']."[/b]\n\n".$body;
 		}
 
-		$body = bbcode($body, false, false, 7);
+		$body = BBCode::convert($body, false, 7);
 
 		XML::addElement($doc, $entry, "content", $body, ["type" => "html"]);
 
@@ -1907,27 +1948,24 @@ class OStatus
 	 * @param bool   $complete default true
 	 * @return void
 	 */
-	private static function entryFooter($doc, $entry, $item, $owner, $complete = true)
+	private static function entryFooter($doc, $entry, array $item, array $owner, $complete = true)
 	{
 		$mentioned = [];
 
 		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::selectFirst(['guid', 'author-link', 'owner-link'], ['id' => $item["parent"]]);
 			$parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
 
-			$thrparent = q(
-				"SELECT `guid`, `author-link`, `owner-link`, `plink` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
-				intval($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"];
-				$parent_plink = $thrparent[0]["plink"];
+			$thrparent = Item::selectFirst(['guid', 'author-link', 'owner-link', 'plink'], ['uid' => $owner["uid"], 'uri' => $parent_item]);
+
+			if (DBM::is_result($thrparent)) {
+				$mentioned[$thrparent["author-link"]] = $thrparent["author-link"];
+				$mentioned[$thrparent["owner-link"]] = $thrparent["owner-link"];
+				$parent_plink = $thrparent["plink"];
 			} else {
-				$mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
-				$mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
-				$parent_plink = System::baseUrl()."/display/".$parent[0]["guid"];
+				$mentioned[$parent["author-link"]] = $parent["author-link"];
+				$mentioned[$parent["owner-link"]] = $parent["owner-link"];
+				$parent_plink = System::baseUrl()."/display/".$parent["guid"];
 			}
 
 			$attributes = [
@@ -1946,13 +1984,13 @@ class OStatus
 			$conversation_uri = $conversation_href;
 
 			if (isset($parent_item)) {
-				$r = dba::fetch_first("SELECT `conversation-uri`, `conversation-href` FROM `conversation` WHERE `item-uri` = ?", $parent_item);
-				if (DBM::is_result($r)) {
-					if ($r['conversation-uri'] != '') {
-						$conversation_uri = $r['conversation-uri'];
+				$conversation = dba::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $parent_item]);
+				if (DBM::is_result($conversation)) {
+					if ($conversation['conversation-uri'] != '') {
+						$conversation_uri = $conversation['conversation-uri'];
 					}
-					if ($r['conversation-href'] != '') {
-						$conversation_href = $r['conversation-href'];
+					if ($conversation['conversation-href'] != '') {
+						$conversation_href = $conversation['conversation-href'];
 					}
 				}
 			}
@@ -1986,12 +2024,10 @@ class OStatus
 		$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"] || $r[0]["prv"]) {
+			$condition = ['uid' => $owner['uid'], 'nurl' => normalise_link($mention)];
+			$contact = dba::selectFirst('contact', ['forum', 'prv', 'self', 'contact-type'], $condition);
+			if ($contact["forum"] || $contact["prv"] || ($owner['contact-type'] == ACCOUNT_TYPE_COMMUNITY) ||
+				($contact['self'] && ($owner['account-type'] == ACCOUNT_TYPE_COMMUNITY))) {
 				XML::addElement($doc, $entry, "link", "",
 					[
 						"rel" => "mentioned",
@@ -2008,6 +2044,14 @@ class OStatus
 			}
 		}
 
+		if ($owner['account-type'] == ACCOUNT_TYPE_COMMUNITY) {
+			XML::addElement($doc, $entry, "link", "", [
+				"rel" => "mentioned",
+				"ostatus:object-type" => "http://activitystrea.ms/schema/1.0/group",
+				"href" => $owner['url']
+			]);
+		}
+
 		if (!$item["private"]) {
 			XML::addElement($doc, $entry, "link", "", ["rel" => "ostatus:attention",
 									"href" => "http://activityschema.org/collection/public"]);
@@ -2072,25 +2116,23 @@ class OStatus
 	{
 		$stamp = microtime(true);
 
+		$owner = User::getOwnerDataByNick($owner_nick);
+		if (!$owner) {
+			return;
+		}
+
 		$cachekey = "ostatus:feed:" . $owner_nick . ":" . $filter . ":" . $last_update;
 
 		$previous_created = $last_update;
 
-		$result = Cache::get($cachekey);
-		if (!$nocache && !is_null($result)) {
-			logger('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)', LOGGER_DEBUG);
-			$last_update = $result['last_update'];
-			return $result['feed'];
-		}
-
-		$owner = dba::fetch_first(
-			"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` = ? LIMIT 1",
-			$owner_nick
-		);
-		if (!DBM::is_result($owner)) {
-			return;
+		// Don't cache when the last item was posted less then 15 minutes ago (Cache duration)
+		if ((time() - strtotime($owner['last-item'])) < 15*60) {
+			$result = Cache::get($cachekey);
+			if (!$nocache && !is_null($result)) {
+				logger('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)', LOGGER_DEBUG);
+				$last_update = $result['last_update'];
+				return $result['feed'];
+			}
 		}
 
 		if (!strlen($last_update)) {
@@ -2098,37 +2140,32 @@ class OStatus
 		}
 
 		$check_date = DateTimeFormat::utc($last_update);
-		$authorid = Contact::getIdForURL($owner["url"], 0);
+		$authorid = Contact::getIdForURL($owner["url"], 0, true);
+
+		$condition = ["`uid` = ? AND `created` > ? AND NOT `deleted`
+			AND NOT `private` AND `visible` AND `wall` AND `parent-network` IN (?, ?)",
+			$owner["uid"], $check_date, NETWORK_OSTATUS, NETWORK_DFRN];
+
+		if ($filter === 'comments') {
+			$condition[0] .= " AND `object-type` = ? ";
+			$condition[] = ACTIVITY_OBJ_COMMENT;
+		}
+
+		if ($owner['account-type'] != ACCOUNT_TYPE_COMMUNITY) {
+			$condition[0] .= " AND `contact-id` = ? AND `author-id` = ?";
+			$condition[] = $owner["id"];
+			$condition[] = $authorid;
+		}
+
+		$params = ['order' => ['created' => true], 'limit' => $max_items];
 
-		$sql_extra = '';
 		if ($filter === 'posts') {
-			$sql_extra .= ' AND `item`.`id` = `item`.`parent` ';
+			$ret = Item::selectThread([], $condition, $params);
+		} else {
+			$ret = Item::select([], $condition, $params);
 		}
 
-		if ($filter === 'comments') {
-			$sql_extra .= sprintf(" AND `item`.`object-type` = '%s' ", dbesc(ACTIVITY_OBJ_COMMENT));
-		}
-
-		$items = q(
-			"SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` USE INDEX (`uid_contactid_created`)
-				STRAIGHT_JOIN `thread` ON `thread`.`iid` = `item`.`parent`
-				WHERE `item`.`uid` = %d
-				AND `item`.`contact-id` = %d
-				AND `item`.`author-id` = %d
-				AND `item`.`created` > '%s'
-				AND NOT `item`.`deleted`
-				AND NOT `item`.`private`
-				AND `thread`.`network` IN ('%s', '%s')
-				$sql_extra
-				ORDER BY `item`.`created` DESC LIMIT %d",
-			intval($owner["uid"]),
-			intval($owner["id"]),
-			intval($authorid),
-			dbesc($check_date),
-			dbesc(NETWORK_OSTATUS),
-			dbesc(NETWORK_DFRN),
-			intval($max_items)
-		);
+		$items = Item::inArray($ret);
 
 		$doc = new DOMDocument('1.0', 'utf-8');
 		$doc->formatOutput = true;