X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FModel%2FItem.php;h=939ee43bf4f45b9dfda722969ac6c76960572fa4;hb=e0a763b07f12ecb7389925100959f9ac6ebe85a8;hp=77828273bc7f27b159665194ad97ccdeb147c69d;hpb=884ab0d71d983bc6d452284a828126cad866562c;p=friendica.git

diff --git a/src/Model/Item.php b/src/Model/Item.php
index 77828273bc..939ee43bf4 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -8,29 +8,34 @@ namespace Friendica\Model;
 
 use Friendica\BaseObject;
 use Friendica\Content\Text\BBCode;
+use Friendica\Content\Text\HTML;
 use Friendica\Core\Addon;
 use Friendica\Core\Config;
 use Friendica\Core\Lock;
+use Friendica\Core\Logger;
+use Friendica\Core\L10n;
 use Friendica\Core\PConfig;
 use Friendica\Core\Protocol;
+use Friendica\Core\Renderer;
 use Friendica\Core\System;
 use Friendica\Core\Worker;
 use Friendica\Database\DBA;
 use Friendica\Model\Contact;
+use Friendica\Model\Event;
+use Friendica\Model\FileTag;
 use Friendica\Model\PermissionSet;
+use Friendica\Model\Term;
 use Friendica\Model\ItemURI;
 use Friendica\Object\Image;
 use Friendica\Protocol\Diaspora;
 use Friendica\Protocol\OStatus;
 use Friendica\Util\DateTimeFormat;
+use Friendica\Util\Map;
 use Friendica\Util\XML;
 use Friendica\Util\Security;
+use Friendica\Util\Strings;
 use Text_LanguageDetect;
 
-require_once 'boot.php';
-require_once 'include/items.php';
-require_once 'include/text.php';
-
 class Item extends BaseObject
 {
 	// Posting types, inspired by https://www.w3.org/TR/activitystreams-vocabulary/#object-types
@@ -823,7 +828,7 @@ class Item extends BaseObject
 			$files = $fields['file'];
 			$fields['file'] = null;
 		} else {
-			$files = '';
+			$files = null;
 		}
 
 		$delivery_data = ['postopts' => defaults($fields, 'postopts', ''),
@@ -902,7 +907,7 @@ class Item extends BaseObject
 				}
 			}
 
-			if (!empty($files)) {
+			if (!is_null($files)) {
 				Term::insertFromFileFieldByItemId($item['id'], $files);
 				if (!empty($item['file'])) {
 					DBA::update('item', ['file' => ''], ['id' => $item['id']]);
@@ -960,7 +965,7 @@ class Item extends BaseObject
 			} elseif ($item['uid'] == $uid) {
 				self::deleteById($item['id'], PRIORITY_HIGH);
 			} else {
-				logger('Wrong ownership. Not deleting item ' . $item['id']);
+				Logger::log('Wrong ownership. Not deleting item ' . $item['id']);
 			}
 		}
 		DBA::close($items);
@@ -974,7 +979,7 @@ class Item extends BaseObject
 	 *
 	 * @return boolean success
 	 */
-	private static function deleteById($item_id, $priority = PRIORITY_HIGH)
+	public static function deleteById($item_id, $priority = PRIORITY_HIGH)
 	{
 		// locate item to be deleted
 		$fields = ['id', 'uri', 'uid', 'parent', 'parent-uri', 'origin',
@@ -983,12 +988,12 @@ class Item extends BaseObject
 			'icid', 'iaid', 'psid'];
 		$item = self::selectFirst($fields, ['id' => $item_id]);
 		if (!DBA::isResult($item)) {
-			logger('Item with ID ' . $item_id . " hasn't been found.", LOGGER_DEBUG);
+			Logger::log('Item with ID ' . $item_id . " hasn't been found.", Logger::DEBUG);
 			return false;
 		}
 
 		if ($item['deleted']) {
-			logger('Item with ID ' . $item_id . ' has already been deleted.', LOGGER_DEBUG);
+			Logger::log('Item with ID ' . $item_id . ' has already been deleted.', Logger::DEBUG);
 			return false;
 		}
 
@@ -1001,18 +1006,20 @@ class Item extends BaseObject
 
 		$matches = false;
 		$cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
+
 		if ($cnt) {
 			foreach ($matches as $mtch) {
-				file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
+				FileTag::unsaveFile($item['uid'], $item['id'], $mtch[1],true);
 			}
 		}
 
 		$matches = false;
 
 		$cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
+
 		if ($cnt) {
 			foreach ($matches as $mtch) {
-				file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],false);
+				FileTag::unsaveFile($item['uid'], $item['id'], $mtch[1],false);
 			}
 		}
 
@@ -1089,7 +1096,7 @@ class Item extends BaseObject
 			}
 		}
 
-		logger('Item with ID ' . $item_id . " has been deleted.", LOGGER_DEBUG);
+		Logger::log('Item with ID ' . $item_id . " has been deleted.", Logger::DEBUG);
 
 		return true;
 	}
@@ -1135,7 +1142,7 @@ class Item extends BaseObject
 	private static function guid($item, $notify)
 	{
 		if (!empty($item['guid'])) {
-			return notags(trim($item['guid']));
+			return Strings::escapeTags(trim($item['guid']));
 		}
 
 		if ($notify) {
@@ -1192,7 +1199,7 @@ class Item extends BaseObject
 		if (!empty($contact_id)) {
 			return $contact_id;
 		}
-		logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
+		Logger::log('Missing contact-id. Called by: '.System::callstack(), Logger::DEBUG);
 		/*
 		 * First we are looking for a suitable contact that matches with the author of the post
 		 * This is done only for comments
@@ -1213,7 +1220,7 @@ class Item extends BaseObject
 				$contact_id = $self["id"];
 			}
 		}
-		logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
+		Logger::log("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, Logger::DEBUG);
 
 		return $contact_id;
 	}
@@ -1250,7 +1257,7 @@ class Item extends BaseObject
 		}
 
 		$item['guid'] = self::guid($item, $notify);
-		$item['uri'] = notags(trim(defaults($item, 'uri', self::newURI($item['uid'], $item['guid']))));
+		$item['uri'] = Strings::escapeTags(trim(defaults($item, 'uri', self::newURI($item['uid'], $item['guid']))));
 
 		// Store URI data
 		$item['uri-id'] = ItemURI::insert(['uri' => $item['uri'], 'guid' => $item['guid']]);
@@ -1298,7 +1305,7 @@ class Item extends BaseObject
 			$item['gravity'] = GRAVITY_COMMENT;
 		} else {
 			$item['gravity'] = GRAVITY_UNKNOWN;   // Should not happen
-			logger('Unknown gravity for verb: ' . $item['verb'], LOGGER_DEBUG);
+			Logger::log('Unknown gravity for verb: ' . $item['verb'], Logger::DEBUG);
 		}
 
 		$uid = intval($item['uid']);
@@ -1315,7 +1322,7 @@ class Item extends BaseObject
 			$expire_date = time() - ($expire_interval * 86400);
 			$created_date = strtotime($item['created']);
 			if ($created_date < $expire_date) {
-				logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
+				Logger::log('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), Logger::DEBUG);
 				return 0;
 			}
 		}
@@ -1333,7 +1340,7 @@ class Item extends BaseObject
 			if (DBA::isResult($existing)) {
 				// We only log the entries with a different user id than 0. Otherwise we would have too many false positives
 				if ($uid != 0) {
-					logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
+					Logger::log("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
 				}
 
 				return $existing["id"];
@@ -1348,15 +1355,15 @@ class Item extends BaseObject
 		$item['owner-name']    = trim(defaults($item, 'owner-name', ''));
 		$item['owner-link']    = trim(defaults($item, 'owner-link', ''));
 		$item['owner-avatar']  = trim(defaults($item, 'owner-avatar', ''));
-		$item['received']      = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
-		$item['created']       = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
-		$item['edited']        = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
-		$item['changed']       = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
-		$item['commented']     = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
+		$item['received']      = (isset($item['received'])  ? DateTimeFormat::utc($item['received'])  : DateTimeFormat::utcNow());
+		$item['created']       = (isset($item['created'])   ? DateTimeFormat::utc($item['created'])   : $item['received']);
+		$item['edited']        = (isset($item['edited'])    ? DateTimeFormat::utc($item['edited'])    : $item['created']);
+		$item['changed']       = (isset($item['changed'])   ? DateTimeFormat::utc($item['changed'])   : $item['created']);
+		$item['commented']     = (isset($item['commented']) ? DateTimeFormat::utc($item['commented']) : $item['created']);
 		$item['title']         = trim(defaults($item, 'title', ''));
 		$item['location']      = trim(defaults($item, 'location', ''));
 		$item['coord']         = trim(defaults($item, 'coord', ''));
-		$item['visible']       = ((x($item, 'visible') !== false) ? intval($item['visible'])         : 1);
+		$item['visible']       = (isset($item['visible']) ? intval($item['visible']) : 1);
 		$item['deleted']       = 0;
 		$item['parent-uri']    = trim(defaults($item, 'parent-uri', $item['uri']));
 		$item['post-type']     = defaults($item, 'post-type', self::PT_ARTICLE);
@@ -1384,7 +1391,7 @@ class Item extends BaseObject
 
 		// When there is no content then we don't post it
 		if ($item['body'].$item['title'] == '') {
-			logger('No body, no title.');
+			Logger::log('No body, no title.');
 			return 0;
 		}
 
@@ -1411,7 +1418,7 @@ class Item extends BaseObject
 		$item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"], 0, false, $default));
 
 		if (Contact::isBlocked($item["author-id"])) {
-			logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
+			Logger::log('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
 			return 0;
 		}
 
@@ -1421,22 +1428,22 @@ class Item extends BaseObject
 		$item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"], 0, false, $default));
 
 		if (Contact::isBlocked($item["owner-id"])) {
-			logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
+			Logger::log('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
 			return 0;
 		}
 
 		if ($item['network'] == Protocol::PHANTOM) {
-			logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
+			Logger::log('Missing network. Called by: '.System::callstack(), Logger::DEBUG);
 
 			$item['network'] = Protocol::DFRN;
-			logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
+			Logger::log("Set network to " . $item["network"] . " for " . $item["uri"], Logger::DEBUG);
 		}
 
 		// Checking if there is already an item with the same guid
-		logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
+		Logger::log('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], Logger::DEBUG);
 		$condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
 		if (self::exists($condition)) {
-			logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
+			Logger::log('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], Logger::DEBUG);
 			return 0;
 		}
 
@@ -1517,15 +1524,15 @@ class Item extends BaseObject
 				}
 
 				// If its a post from myself then tag the thread as "mention"
-				logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
+				Logger::log("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], Logger::DEBUG);
 				$user = DBA::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
 				if (DBA::isResult($user)) {
-					$self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
+					$self = Strings::normaliseLink(System::baseUrl() . '/profile/' . $user['nickname']);
 					$self_id = Contact::getIdForURL($self, 0, true);
-					logger("'myself' is ".$self_id." for parent ".$parent_id." checking against ".$item['author-id']." and ".$item['owner-id'], LOGGER_DEBUG);
+					Logger::log("'myself' is ".$self_id." for parent ".$parent_id." checking against ".$item['author-id']." and ".$item['owner-id'], Logger::DEBUG);
 					if (($item['author-id'] == $self_id) || ($item['owner-id'] == $self_id)) {
 						DBA::update('thread', ['mention' => true], ['iid' => $parent_id]);
-						logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
+						Logger::log("tagged thread ".$parent_id." as mention for user ".$self, Logger::DEBUG);
 					}
 				}
 			} else {
@@ -1534,12 +1541,12 @@ class Item extends BaseObject
 				 * we don't have or can't see the original post.
 				 */
 				if ($force_parent) {
-					logger('$force_parent=true, reply converted to top-level post.');
+					Logger::log('$force_parent=true, reply converted to top-level post.');
 					$parent_id = 0;
 					$item['parent-uri'] = $item['uri'];
 					$item['gravity'] = GRAVITY_PARENT;
 				} else {
-					logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
+					Logger::log('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
 					return 0;
 				}
 
@@ -1553,7 +1560,7 @@ class Item extends BaseObject
 		$condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
 			$item['uri'], $item['network'], Protocol::DFRN, $item['uid']];
 		if (self::exists($condition)) {
-			logger('duplicated item with the same uri found. '.print_r($item,true));
+			Logger::log('duplicated item with the same uri found. '.print_r($item,true));
 			return 0;
 		}
 
@@ -1561,7 +1568,7 @@ class Item extends BaseObject
 		if (in_array($item['network'], [Protocol::DFRN, Protocol::DIASPORA])) {
 			$condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
 			if (self::exists($condition)) {
-				logger('duplicated item with the same guid found. '.print_r($item,true));
+				Logger::log('duplicated item with the same guid found. '.print_r($item,true));
 				return 0;
 			}
 		} else {
@@ -1569,7 +1576,7 @@ class Item extends BaseObject
 			$condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
 					$item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
 			if (self::exists($condition)) {
-				logger('duplicated item with the same body found. '.print_r($item,true));
+				Logger::log('duplicated item with the same body found. '.print_r($item,true));
 				return 0;
 			}
 		}
@@ -1599,7 +1606,7 @@ class Item extends BaseObject
 		$item["deleted"] = $parent_deleted;
 
 		// Fill the cache field
-		put_item_in_cache($item);
+		self::putInCache($item);
 
 		if ($notify) {
 			$item['edit'] = false;
@@ -1615,8 +1622,8 @@ class Item extends BaseObject
 		// It is mainly used in the "post_local" hook.
 		unset($item['api_source']);
 
-		if (x($item, 'cancel')) {
-			logger('post cancelled by addon.');
+		if (!empty($item['cancel'])) {
+			Logger::log('post cancelled by addon.');
 			return 0;
 		}
 
@@ -1627,12 +1634,12 @@ class Item extends BaseObject
 		 */
 		if ($item["uid"] == 0) {
 			if (self::exists(['uri' => trim($item['uri']), 'uid' => 0])) {
-				logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
+				Logger::log('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], Logger::DEBUG);
 				return 0;
 			}
 		}
 
-		logger('' . print_r($item,true), LOGGER_DATA);
+		Logger::log('' . print_r($item,true), Logger::DATA);
 
 		if (array_key_exists('tag', $item)) {
 			$tags = $item['tag'];
@@ -1700,14 +1707,14 @@ class Item extends BaseObject
 				$item = array_merge($item, $delivery_data);
 
 				file_put_contents($spool, json_encode($item));
-				logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
+				Logger::log("Item wasn't stored - Item was spooled into file ".$file, Logger::DEBUG);
 			}
 			return 0;
 		}
 
 		if ($current_post == 0) {
 			// This is one of these error messages that never should occur.
-			logger("couldn't find created item - we better quit now.");
+			Logger::log("couldn't find created item - we better quit now.");
 			DBA::rollback();
 			return 0;
 		}
@@ -1718,7 +1725,7 @@ class Item extends BaseObject
 
 		if ($entries > 1) {
 			// There are duplicates. We delete our just created entry.
-			logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
+			Logger::log('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
 
 			// Yes, we could do a rollback here - but we are having many users with MyISAM.
 			DBA::delete('item', ['id' => $current_post]);
@@ -1726,12 +1733,12 @@ class Item extends BaseObject
 			return 0;
 		} elseif ($entries == 0) {
 			// This really should never happen since we quit earlier if there were problems.
-			logger("Something is terribly wrong. We haven't found our created entry.");
+			Logger::log("Something is terribly wrong. We haven't found our created entry.");
 			DBA::rollback();
 			return 0;
 		}
 
-		logger('created item '.$current_post);
+		Logger::log('created item '.$current_post);
 		self::updateContact($item);
 
 		if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
@@ -1759,7 +1766,7 @@ class Item extends BaseObject
 			 */
 			if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
 				$dsprsig->signature = base64_decode($dsprsig->signature);
-				logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
+				Logger::log("Repaired double encoded signature from handle ".$dsprsig->signer, Logger::DEBUG);
 			}
 
 			if (!empty($dsprsig->signed_text) && empty($dsprsig->signature) && empty($dsprsig->signer)) {
@@ -1790,7 +1797,7 @@ class Item extends BaseObject
 					Addon::callHooks('post_remote_end', $posted_item);
 				}
 			} else {
-				logger('new item not found in DB, id ' . $current_post);
+				Logger::log('new item not found in DB, id ' . $current_post);
 			}
 		}
 
@@ -1827,9 +1834,17 @@ class Item extends BaseObject
 		check_user_notification($current_post);
 
 		if ($notify) {
-			Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
-		} elseif (!empty($parent) && $parent['origin']) {
-			Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", "comment-import", $current_post);
+			Worker::add(['priority' => $priority, 'dont_fork' => true], 'Notifier', $notify_type, $current_post);
+		} elseif ($item['visible'] && ((!empty($parent) && $parent['origin']) || $item['origin'])) {
+			if ($item['gravity'] == GRAVITY_ACTIVITY) {
+				$cmd = $item['origin'] ? 'activity-new' : 'activity-import';
+			} elseif ($item['gravity'] == GRAVITY_COMMENT) {
+				$cmd = $item['origin'] ? 'comment-new' : 'comment-import';
+			} else {
+				$cmd = 'wall-new';
+			}
+
+			Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', $cmd, $current_post);
 		}
 
 		return $current_post;
@@ -1887,20 +1902,20 @@ class Item extends BaseObject
 		// To avoid timing problems, we are using locks.
 		$locked = Lock::acquire('item_insert_activity');
 		if (!$locked) {
-			logger("Couldn't acquire lock for URI " . $item['uri'] . " - proceeding anyway.");
+			Logger::log("Couldn't acquire lock for URI " . $item['uri'] . " - proceeding anyway.");
 		}
 
 		// Do we already have this content?
 		$item_activity = DBA::selectFirst('item-activity', ['id'], ['uri-id' => $item['uri-id']]);
 		if (DBA::isResult($item_activity)) {
 			$item['iaid'] = $item_activity['id'];
-			logger('Fetched activity for URI ' . $item['uri'] . ' (' . $item['iaid'] . ')');
+			Logger::log('Fetched activity for URI ' . $item['uri'] . ' (' . $item['iaid'] . ')');
 		} elseif (DBA::insert('item-activity', $fields)) {
 			$item['iaid'] = DBA::lastInsertId();
-			logger('Inserted activity for URI ' . $item['uri'] . ' (' . $item['iaid'] . ')');
+			Logger::log('Inserted activity for URI ' . $item['uri'] . ' (' . $item['iaid'] . ')');
 		} else {
 			// This shouldn't happen.
-			logger('Could not insert activity for URI ' . $item['uri'] . ' - should not happen');
+			Logger::log('Could not insert activity for URI ' . $item['uri'] . ' - should not happen');
 			Lock::release('item_insert_activity');
 			return false;
 		}
@@ -1929,20 +1944,20 @@ class Item extends BaseObject
 		// To avoid timing problems, we are using locks.
 		$locked = Lock::acquire('item_insert_content');
 		if (!$locked) {
-			logger("Couldn't acquire lock for URI " . $item['uri'] . " - proceeding anyway.");
+			Logger::log("Couldn't acquire lock for URI " . $item['uri'] . " - proceeding anyway.");
 		}
 
 		// Do we already have this content?
 		$item_content = DBA::selectFirst('item-content', ['id'], ['uri-id' => $item['uri-id']]);
 		if (DBA::isResult($item_content)) {
 			$item['icid'] = $item_content['id'];
-			logger('Fetched content for URI ' . $item['uri'] . ' (' . $item['icid'] . ')');
+			Logger::log('Fetched content for URI ' . $item['uri'] . ' (' . $item['icid'] . ')');
 		} elseif (DBA::insert('item-content', $fields)) {
 			$item['icid'] = DBA::lastInsertId();
-			logger('Inserted content for URI ' . $item['uri'] . ' (' . $item['icid'] . ')');
+			Logger::log('Inserted content for URI ' . $item['uri'] . ' (' . $item['icid'] . ')');
 		} else {
 			// This shouldn't happen.
-			logger('Could not insert content for URI ' . $item['uri'] . ' - should not happen');
+			Logger::log('Could not insert content for URI ' . $item['uri'] . ' - should not happen');
 		}
 		if ($locked) {
 			Lock::release('item_insert_content');
@@ -1968,7 +1983,7 @@ class Item extends BaseObject
 
 		$fields = ['activity' => $activity_index];
 
-		logger('Update activity for ' . json_encode($condition));
+		Logger::log('Update activity for ' . json_encode($condition));
 
 		DBA::update('item-activity', $fields, $condition, true);
 
@@ -1997,7 +2012,7 @@ class Item extends BaseObject
 			$fields = $condition;
 		}
 
-		logger('Update content for ' . json_encode($condition));
+		Logger::log('Update content for ' . json_encode($condition));
 
 		DBA::update('item-content', $fields, $condition, true);
 	}
@@ -2136,9 +2151,9 @@ class Item extends BaseObject
 		$distributed = self::insert($item, false, $notify, true);
 
 		if (!$distributed) {
-			logger("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", LOGGER_DEBUG);
+			Logger::log("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", Logger::DEBUG);
 		} else {
-			logger("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, LOGGER_DEBUG);
+			Logger::log("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, Logger::DEBUG);
 		}
 	}
 
@@ -2201,7 +2216,7 @@ class Item extends BaseObject
 
 			$public_shadow = self::insert($item, false, false, true);
 
-			logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
+			Logger::log("Stored public shadow for thread ".$itemid." under id ".$public_shadow, Logger::DEBUG);
 		}
 	}
 
@@ -2258,7 +2273,7 @@ class Item extends BaseObject
 
 		$public_shadow = self::insert($item, false, false, true);
 
-		logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
+		Logger::log("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, Logger::DEBUG);
 
 		// If this was a comment to a Diaspora post we don't get our comment back.
 		// This means that we have to distribute the comment by ourselves.
@@ -2380,7 +2395,7 @@ class Item extends BaseObject
 	public static function setHashtags(&$item)
 	{
 
-		$tags = get_tags($item["body"]);
+		$tags = BBCode::getTags($item["body"]);
 
 		// No hashtags?
 		if (!count($tags)) {
@@ -2429,15 +2444,15 @@ class Item extends BaseObject
 
 			$basetag = str_replace('_',' ',substr($tag,1));
 
-			$newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
+			$newtag = '#[url=' . System::baseUrl() . '/search?tag=' . $basetag . ']' . $basetag . '[/url]';
 
 			$item["body"] = str_replace($tag, $newtag, $item["body"]);
 
 			if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
 				if (strlen($item["tag"])) {
-					$item["tag"] = ','.$item["tag"];
+					$item["tag"] = ',' . $item["tag"];
 				}
-				$item["tag"] = $newtag.$item["tag"];
+				$item["tag"] = $newtag . $item["tag"];
 			}
 		}
 
@@ -2522,20 +2537,20 @@ class Item extends BaseObject
 			return;
 		}
 
-		$link = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
+		$link = Strings::normaliseLink(System::baseUrl() . '/profile/' . $user['nickname']);
 
 		/*
 		 * Diaspora uses their own hardwired link URL in @-tags
 		 * instead of the one we supply with webfinger
 		 */
-		$dlink = normalise_link(System::baseUrl() . '/u/' . $user['nickname']);
+		$dlink = Strings::normaliseLink(System::baseUrl() . '/u/' . $user['nickname']);
 
 		$cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
 		if ($cnt) {
 			foreach ($matches as $mtch) {
-				if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
+				if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
 					$mention = true;
-					logger('mention found: ' . $mtch[2]);
+					Logger::log('mention found: ' . $mtch[2]);
 				}
 			}
 		}
@@ -2545,7 +2560,7 @@ class Item extends BaseObject
 				  !$item['wall'] && !$item['origin'] && ($item['id'] == $item['parent'])) {
 				// mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
 				// delete it!
-				logger("no-mention top-level post to community or private group. delete.");
+				Logger::log("no-mention top-level post to community or private group. delete.");
 				DBA::delete('item', ['id' => $item_id]);
 				return true;
 			}
@@ -2604,29 +2619,29 @@ class Item extends BaseObject
 
 		// Prevent the forwarding of posts that are forwarded
 		if (!empty($datarray["extid"]) && ($datarray["extid"] == Protocol::DFRN)) {
-			logger('Already forwarded', LOGGER_DEBUG);
+			Logger::log('Already forwarded', Logger::DEBUG);
 			return false;
 		}
 
 		// Prevent to forward already forwarded posts
 		if ($datarray["app"] == $a->getHostName()) {
-			logger('Already forwarded (second test)', LOGGER_DEBUG);
+			Logger::log('Already forwarded (second test)', Logger::DEBUG);
 			return false;
 		}
 
 		// Only forward posts
 		if ($datarray["verb"] != ACTIVITY_POST) {
-			logger('No post', LOGGER_DEBUG);
+			Logger::log('No post', Logger::DEBUG);
 			return false;
 		}
 
 		if (($contact['network'] != Protocol::FEED) && $datarray['private']) {
-			logger('Not public', LOGGER_DEBUG);
+			Logger::log('Not public', Logger::DEBUG);
 			return false;
 		}
 
 		$datarray2 = $datarray;
-		logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
+		Logger::log('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), Logger::DEBUG);
 		if ($contact['remote_self'] == 2) {
 			$self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
 					['uid' => $contact['uid'], 'self' => true]);
@@ -2666,7 +2681,7 @@ class Item extends BaseObject
 		if ($contact['network'] != Protocol::FEED) {
 			// Store the original post
 			$result = self::insert($datarray2, false, false);
-			logger('remote-self post original item - Contact '.$contact['url'].' return '.$result.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
+			Logger::log('remote-self post original item - Contact '.$contact['url'].' return '.$result.' Item '.print_r($datarray2, true), Logger::DEBUG);
 		} else {
 			$datarray["app"] = "Feed";
 			$result = true;
@@ -2696,7 +2711,7 @@ class Item extends BaseObject
 			return $s;
 		}
 
-		logger('check for photos', LOGGER_DEBUG);
+		Logger::log('check for photos', Logger::DEBUG);
 		$site = substr(System::baseUrl(), strpos(System::baseUrl(), '://'));
 
 		$orig_body = $s;
@@ -2710,7 +2725,7 @@ class Item extends BaseObject
 			$img_st_close++; // make it point to AFTER the closing bracket
 			$image = substr($orig_body, $img_start + $img_st_close, $img_len);
 
-			logger('found photo ' . $image, LOGGER_DEBUG);
+			Logger::log('found photo ' . $image, Logger::DEBUG);
 
 			if (stristr($image, $site . '/photo/')) {
 				// Only embed locally hosted photos
@@ -2752,7 +2767,7 @@ class Item extends BaseObject
 
 							// If a custom width and height were specified, apply before embedding
 							if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
-								logger('scaling photo', LOGGER_DEBUG);
+								Logger::log('scaling photo', Logger::DEBUG);
 
 								$width = intval($match[1]);
 								$height = intval($match[2]);
@@ -2765,9 +2780,9 @@ class Item extends BaseObject
 								}
 							}
 
-							logger('replacing photo', LOGGER_DEBUG);
+							Logger::log('replacing photo', Logger::DEBUG);
 							$image = 'data:' . $type . ';base64,' . base64_encode($data);
-							logger('replaced: ' . $image, LOGGER_DATA);
+							Logger::log('replaced: ' . $image, Logger::DATA);
 						}
 					}
 				}
@@ -2930,7 +2945,7 @@ class Item extends BaseObject
 			++$expired;
 		}
 		DBA::close($items);
-		logger('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
+		Logger::log('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
 	}
 
 	public static function firstPostDate($uid, $wall = false)
@@ -2986,18 +3001,18 @@ class Item extends BaseObject
 				$activity = ACTIVITY_ATTENDMAYBE;
 				break;
 			default:
-				logger('like: unknown verb ' . $verb . ' for item ' . $item_id);
+				Logger::log('like: unknown verb ' . $verb . ' for item ' . $item_id);
 				return false;
 		}
 
 		// Enable activity toggling instead of on/off
 		$event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE;
 
-		logger('like: verb ' . $verb . ' item ' . $item_id);
+		Logger::log('like: verb ' . $verb . ' item ' . $item_id);
 
 		$item = self::selectFirst(self::ITEM_FIELDLIST, ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
 		if (!DBA::isResult($item)) {
-			logger('like: unknown item ' . $item_id);
+			Logger::log('like: unknown item ' . $item_id);
 			return false;
 		}
 
@@ -3009,14 +3024,14 @@ class Item extends BaseObject
 		}
 
 		if (!Security::canWriteToUserWall($uid)) {
-			logger('like: unable to write on wall ' . $uid);
+			Logger::log('like: unable to write on wall ' . $uid);
 			return false;
 		}
 
 		// Retrieves the local post owner
 		$owner_self_contact = DBA::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
 		if (!DBA::isResult($owner_self_contact)) {
-			logger('like: unknown owner ' . $uid);
+			Logger::log('like: unknown owner ' . $uid);
 			return false;
 		}
 
@@ -3025,7 +3040,7 @@ class Item extends BaseObject
 
 		$author_contact = DBA::selectFirst('contact', ['url'], ['id' => $author_id]);
 		if (!DBA::isResult($author_contact)) {
-			logger('like: unknown author ' . $author_id);
+			Logger::log('like: unknown author ' . $author_id);
 			return false;
 		}
 
@@ -3037,7 +3052,7 @@ class Item extends BaseObject
 			$item_contact_id = Contact::getIdForURL($author_contact['url'], $uid, true);
 			$item_contact = DBA::selectFirst('contact', [], ['id' => $item_contact_id]);
 			if (!DBA::isResult($item_contact)) {
-				logger('like: unknown item contact ' . $item_contact_id);
+				Logger::log('like: unknown item contact ' . $item_contact_id);
 				return false;
 			}
 		}
@@ -3103,6 +3118,11 @@ class Item extends BaseObject
 			'unseen'        => 1,
 		];
 
+		$signed = Diaspora::createLikeSignature($uid, $new_item);
+		if (!empty($signed)) {
+			$new_item['diaspora_signed_text'] = json_encode($signed);
+		}
+
 		$new_item_id = self::insert($new_item);
 
 		// If the parent item isn't visible then set it to visible
@@ -3110,15 +3130,10 @@ class Item extends BaseObject
 			self::update(['visible' => true], ['id' => $item['id']]);
 		}
 
-		// Save the author information for the like in case we need to relay to Diaspora
-		Diaspora::storeLikeSignature($item_contact, $new_item_id);
-
 		$new_item['id'] = $new_item_id;
 
 		Addon::callHooks('post_local_end', $new_item);
 
-		Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
-
 		return true;
 	}
 
@@ -3139,7 +3154,7 @@ class Item extends BaseObject
 		if (!$onlyshadow) {
 			$result = DBA::insert('thread', $item);
 
-			logger("Add thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
+			Logger::log("Add thread for item ".$itemid." - ".print_r($result, true), Logger::DEBUG);
 		}
 	}
 
@@ -3171,31 +3186,31 @@ class Item extends BaseObject
 
 		$result = DBA::update('thread', $fields, ['iid' => $itemid]);
 
-		logger("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result, LOGGER_DEBUG);
+		Logger::log("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result, Logger::DEBUG);
 	}
 
 	private static function deleteThread($itemid, $itemuri = "")
 	{
 		$item = DBA::selectFirst('thread', ['uid'], ['iid' => $itemid]);
 		if (!DBA::isResult($item)) {
-			logger('No thread found for id '.$itemid, LOGGER_DEBUG);
+			Logger::log('No thread found for id '.$itemid, Logger::DEBUG);
 			return;
 		}
 
 		$result = DBA::delete('thread', ['iid' => $itemid], ['cascade' => false]);
 
-		logger("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
+		Logger::log("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), Logger::DEBUG);
 
 		if ($itemuri != "") {
 			$condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
 			if (!self::exists($condition)) {
 				DBA::delete('item', ['uri' => $itemuri, 'uid' => 0]);
-				logger("deleteThread: Deleted shadow for item ".$itemuri, LOGGER_DEBUG);
+				Logger::log("deleteThread: Deleted shadow for item ".$itemuri, Logger::DEBUG);
 			}
 		}
 	}
 
-	public static function getPermissionsSQLByUserId($owner_id, $remote_verified = false, $groups = null)
+	public static function getPermissionsSQLByUserId($owner_id, $remote_verified = false, $groups = null, $remote_cid = null)
 	{
 		$local_user = local_user();
 		$remote_user = remote_user();
@@ -3218,7 +3233,7 @@ class Item extends BaseObject
 			 * If pre-verified, the caller is expected to have already
 			 * done this and passed the groups into this function.
 			 */
-			$set = PermissionSet::get($owner_id, $remote_user, $groups);
+			$set = PermissionSet::get($owner_id, $remote_cid, $groups);
 
 			if (!empty($set)) {
 				$sql_set = " OR (`item`.`private` IN (1,2) AND `item`.`wall` AND `item`.`psid` IN (" . implode(',', $set) . "))";
@@ -3231,4 +3246,295 @@ class Item extends BaseObject
 
 		return $sql;
 	}
+
+	/**
+	 * get translated item type
+	 *
+	 * @param array $itme
+	 * @return string
+	 */
+	public static function postType($item)
+	{
+		if (!empty($item['event-id'])) {
+			return L10n::t('event');
+		} elseif (!empty($item['resource-id'])) {
+			return L10n::t('photo');
+		} elseif (!empty($item['verb']) && $item['verb'] !== ACTIVITY_POST) {
+			return L10n::t('activity');
+		} elseif ($item['id'] != $item['parent']) {
+			return L10n::t('comment');
+		}
+
+		return L10n::t('post');
+	}
+
+	/**
+	 * Sets the "rendered-html" field of the provided item
+	 *
+	 * Body is preserved to avoid side-effects as we modify it just-in-time for spoilers and private image links
+	 *
+	 * @param array $item
+	 * @param bool  $update
+	 *
+	 * @todo Remove reference, simply return "rendered-html" and "rendered-hash"
+	 */
+	public static function putInCache(&$item, $update = false)
+	{
+		$body = $item["body"];
+
+		$rendered_hash = defaults($item, 'rendered-hash', '');
+		$rendered_html = defaults($item, 'rendered-html', '');
+
+		if ($rendered_hash == ''
+			|| $rendered_html == ""
+			|| $rendered_hash != hash("md5", $item["body"])
+			|| Config::get("system", "ignore_cache")
+		) {
+			$a = self::getApp();
+			redir_private_images($a, $item);
+
+			$item["rendered-html"] = prepare_text($item["body"]);
+			$item["rendered-hash"] = hash("md5", $item["body"]);
+
+			$hook_data = ['item' => $item, 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
+			Addon::callHooks('put_item_in_cache', $hook_data);
+			$item['rendered-html'] = $hook_data['rendered-html'];
+			$item['rendered-hash'] = $hook_data['rendered-hash'];
+			unset($hook_data);
+
+			// Force an update if the generated values differ from the existing ones
+			if ($rendered_hash != $item["rendered-hash"]) {
+				$update = true;
+			}
+
+			// Only compare the HTML when we forcefully ignore the cache
+			if (Config::get("system", "ignore_cache") && ($rendered_html != $item["rendered-html"])) {
+				$update = true;
+			}
+
+			if ($update && !empty($item["id"])) {
+				self::update(
+					[
+						'rendered-html' => $item["rendered-html"],
+						'rendered-hash' => $item["rendered-hash"]
+					],
+					['id' => $item["id"]]
+				);
+			}
+		}
+
+		$item["body"] = $body;
+	}
+
+	/**
+	 * @brief Given an item array, convert the body element from bbcode to html and add smilie icons.
+	 * If attach is true, also add icons for item attachments.
+	 *
+	 * @param array   $item
+	 * @param boolean $attach
+	 * @param boolean $is_preview
+	 * @return string item body html
+	 * @hook prepare_body_init item array before any work
+	 * @hook prepare_body_content_filter ('item'=>item array, 'filter_reasons'=>string array) before first bbcode to html
+	 * @hook prepare_body ('item'=>item array, 'html'=>body string, 'is_preview'=>boolean, 'filter_reasons'=>string array) after first bbcode to html
+	 * @hook prepare_body_final ('item'=>item array, 'html'=>body string) after attach icons and blockquote special case handling (spoiler, author)
+	 */
+	public static function prepareBody(array &$item, $attach = false, $is_preview = false)
+	{
+		$a = self::getApp();
+		Addon::callHooks('prepare_body_init', $item);
+
+		// In order to provide theme developers more possibilities, event items
+		// are treated differently.
+		if ($item['object-type'] === ACTIVITY_OBJ_EVENT && isset($item['event-id'])) {
+			$ev = Event::getItemHTML($item);
+			return $ev;
+		}
+
+		$tags = Term::populateTagsFromItem($item);
+
+		$item['tags'] = $tags['tags'];
+		$item['hashtags'] = $tags['hashtags'];
+		$item['mentions'] = $tags['mentions'];
+
+		// Compile eventual content filter reasons
+		$filter_reasons = [];
+		if (!$is_preview && public_contact() != $item['author-id']) {
+			if (!empty($item['content-warning']) && (!local_user() || !PConfig::get(local_user(), 'system', 'disable_cw', false))) {
+				$filter_reasons[] = L10n::t('Content warning: %s', $item['content-warning']);
+			}
+
+			$hook_data = [
+				'item' => $item,
+				'filter_reasons' => $filter_reasons
+			];
+			Addon::callHooks('prepare_body_content_filter', $hook_data);
+			$filter_reasons = $hook_data['filter_reasons'];
+			unset($hook_data);
+		}
+
+		// Update the cached values if there is no "zrl=..." on the links.
+		$update = (!local_user() && !remote_user() && ($item["uid"] == 0));
+
+		// Or update it if the current viewer is the intented viewer.
+		if (($item["uid"] == local_user()) && ($item["uid"] != 0)) {
+			$update = true;
+		}
+
+		self::putInCache($item, $update);
+		$s = $item["rendered-html"];
+
+		$hook_data = [
+			'item' => $item,
+			'html' => $s,
+			'preview' => $is_preview,
+			'filter_reasons' => $filter_reasons
+		];
+		Addon::callHooks('prepare_body', $hook_data);
+		$s = $hook_data['html'];
+		unset($hook_data);
+
+		if (!$attach) {
+			// Replace the blockquotes with quotes that are used in mails.
+			$mailquote = '<blockquote type="cite" class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">';
+			$s = str_replace(['<blockquote>', '<blockquote class="spoiler">', '<blockquote class="author">'], [$mailquote, $mailquote, $mailquote], $s);
+			return $s;
+		}
+
+		$as = '';
+		$vhead = false;
+		$matches = [];
+		preg_match_all('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\"(?: title=\"(.*?)\")?|', $item['attach'], $matches, PREG_SET_ORDER);
+		foreach ($matches as $mtch) {
+			$mime = $mtch[3];
+
+			$the_url = Contact::magicLinkById($item['author-id'], $mtch[1]);
+
+			if (strpos($mime, 'video') !== false) {
+				if (!$vhead) {
+					$vhead = true;
+					$a->page['htmlhead'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('videos_head.tpl'), [
+						'$baseurl' => System::baseUrl(),
+					]);
+				}
+
+				$url_parts = explode('/', $the_url);
+				$id = end($url_parts);
+				$as .= Renderer::replaceMacros(Renderer::getMarkupTemplate('video_top.tpl'), [
+					'$video' => [
+						'id'     => $id,
+						'title'  => L10n::t('View Video'),
+						'src'    => $the_url,
+						'mime'   => $mime,
+					],
+				]);
+			}
+
+			$filetype = strtolower(substr($mime, 0, strpos($mime, '/')));
+			if ($filetype) {
+				$filesubtype = strtolower(substr($mime, strpos($mime, '/') + 1));
+				$filesubtype = str_replace('.', '-', $filesubtype);
+			} else {
+				$filetype = 'unkn';
+				$filesubtype = 'unkn';
+			}
+
+			$title = Strings::escapeHtml(trim(defaults($mtch, 4, $mtch[1])));
+			$title .= ' ' . $mtch[2] . ' ' . L10n::t('bytes');
+
+			$icon = '<div class="attachtype icon s22 type-' . $filetype . ' subtype-' . $filesubtype . '"></div>';
+			$as .= '<a href="' . strip_tags($the_url) . '" title="' . $title . '" class="attachlink" target="_blank" >' . $icon . '</a>';
+		}
+
+		if ($as != '') {
+			$s .= '<div class="body-attach">'.$as.'<div class="clear"></div></div>';
+		}
+
+		// Map.
+		if (strpos($s, '<div class="map">') !== false && !empty($item['coord'])) {
+			$x = Map::byCoordinates(trim($item['coord']));
+			if ($x) {
+				$s = preg_replace('/\<div class\=\"map\"\>/', '$0' . $x, $s);
+			}
+		}
+
+
+		// Look for spoiler.
+		$spoilersearch = '<blockquote class="spoiler">';
+
+		// Remove line breaks before the spoiler.
+		while ((strpos($s, "\n" . $spoilersearch) !== false)) {
+			$s = str_replace("\n" . $spoilersearch, $spoilersearch, $s);
+		}
+		while ((strpos($s, "<br />" . $spoilersearch) !== false)) {
+			$s = str_replace("<br />" . $spoilersearch, $spoilersearch, $s);
+		}
+
+		while ((strpos($s, $spoilersearch) !== false)) {
+			$pos = strpos($s, $spoilersearch);
+			$rnd = Strings::getRandomHex(8);
+			$spoilerreplace = '<br /> <span id="spoiler-wrap-' . $rnd . '" class="spoiler-wrap fakelink" onclick="openClose(\'spoiler-' . $rnd . '\');">' . L10n::t('Click to open/close') . '</span>'.
+						'<blockquote class="spoiler" id="spoiler-' . $rnd . '" style="display: none;">';
+			$s = substr($s, 0, $pos) . $spoilerreplace . substr($s, $pos + strlen($spoilersearch));
+		}
+
+		// Look for quote with author.
+		$authorsearch = '<blockquote class="author">';
+
+		while ((strpos($s, $authorsearch) !== false)) {
+			$pos = strpos($s, $authorsearch);
+			$rnd = Strings::getRandomHex(8);
+			$authorreplace = '<br /> <span id="author-wrap-' . $rnd . '" class="author-wrap fakelink" onclick="openClose(\'author-' . $rnd . '\');">' . L10n::t('Click to open/close') . '</span>'.
+						'<blockquote class="author" id="author-' . $rnd . '" style="display: block;">';
+			$s = substr($s, 0, $pos) . $authorreplace . substr($s, $pos + strlen($authorsearch));
+		}
+
+		// Replace friendica image url size with theme preference.
+		if (!empty($a->theme_info['item_image_size'])) {
+			$ps = $a->theme_info['item_image_size'];
+			$s = preg_replace('|(<img[^>]+src="[^"]+/photo/[0-9a-f]+)-[0-9]|', "$1-" . $ps, $s);
+		}
+
+		$s = HTML::applyContentFilter($s, $filter_reasons);
+
+		$hook_data = ['item' => $item, 'html' => $s];
+		Addon::callHooks('prepare_body_final', $hook_data);
+
+		return $hook_data['html'];
+	}
+
+	/**
+	 * get private link for item
+	 * @param array $item
+	 * @return boolean|array False if item has not plink, otherwise array('href'=>plink url, 'title'=>translated title)
+	 */
+	public static function getPlink($item)
+	{
+		$a = self::getApp();
+
+		if ($a->user['nickname'] != "") {
+			$ret = [
+				'href' => "display/" . $item['guid'],
+				'orig' => "display/" . $item['guid'],
+				'title' => L10n::t('View on separate page'),
+				'orig_title' => L10n::t('view on separate page'),
+			];
+
+			if (!empty($item['plink'])) {
+				$ret["href"] = $a->removeBaseURL($item['plink']);
+				$ret["title"] = L10n::t('link to source');
+			}
+
+		} elseif (!empty($item['plink']) && ($item['private'] != 1)) {
+			$ret = [
+				'href' => $item['plink'],
+				'orig' => $item['plink'],
+				'title' => L10n::t('link to source'),
+			];
+		} else {
+			$ret = [];
+		}
+
+		return $ret;
+	}
 }