Transfer all item shadow functions to the item class

src/Model/Item.php

@@ -8,6 +8,8 @@ namespace Friendica\Model;
 
 use Friendica\Core\Worker;
 use Friendica\Model\Term;
+use Friendica\Model\Contact;
+use Friendica\Database\DBM;
 use dba;
 
 require_once 'include/tags.php';
@@ -60,4 +62,141 @@ class Item
 
 		return $rows;
 	}
+
+	/**
+	 * @brief Add a shadow entry for a given item id that is a thread starter
+	 *
+	 * We store every public item entry additionally with the user id "0".
+	 * This is used for the community page and for the search.
+	 * It is planned that in the future we will store public item entries only once.
+	 *
+	 * @param integer $itemid Item ID that should be added
+	 */
+	public static function addShadow($itemid) {
+		$fields = ['uid', 'wall', 'private', 'moderated', 'visible', 'contact-id', 'deleted', 'network', 'author-id', 'owner-id'];
+		$condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
+		$item = dba::selectFirst('item', $fields, $condition);
+
+		if (!DBM::is_result($item)) {
+			return;
+		}
+
+		// is it already a copy?
+		if (($itemid == 0) || ($item['uid'] == 0)) {
+			return;
+		}
+
+		// Is it a visible public post?
+		if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
+			return;
+		}
+
+		// is it an entry from a connector? Only add an entry for natively connected networks
+		if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
+			return;
+		}
+
+		// Is the public contact configured as hidden?
+		if (Contact::isHidden($item["owner-id"]) || Contact::isHidden($item["author-id"])) {
+			return;
+		}
+
+		// Only do these checks if the post isn't a wall post
+		if (!$item["wall"]) {
+			// Check, if hide-friends is activated - then don't do a shadow entry
+			if (dba::exists('profile', ['is-default' => true, 'uid' => $item['uid'], 'hide-friends' => true])) {
+				return;
+			}
+
+			// Check if the contact is hidden or blocked
+			if (!dba::exists('contact', ['hidden' => false, 'blocked' => false, 'id' => $item['contact-id']])) {
+				return;
+			}
+		}
+
+		// Only add a shadow, if the profile isn't hidden
+		if (dba::exists('user', ['uid' => $item['uid'], 'hidewall' => true])) {
+			return;
+		}
+
+		$item = dba::selectFirst('item', [], ['id' => $itemid]);
+
+		if (count($item) && ($item["allow_cid"] == '')  && ($item["allow_gid"] == '') &&
+			($item["deny_cid"] == '') && ($item["deny_gid"] == '')) {
+
+			if (!dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
+				// Preparing public shadow (removing user specific data)
+				require_once("include/items.php");
+
+				unset($item['id']);
+				$item['uid'] = 0;
+				$item['origin'] = 0;
+				$item['wall'] = 0;
+				$item['contact-id'] = Contact::getIdForURL($item['author-link'], 0);
+
+				if (in_array($item['type'], ["net-comment", "wall-comment"])) {
+					$item['type'] = 'remote-comment';
+				} elseif ($item['type'] == 'wall') {
+					$item['type'] = 'remote';
+				}
+
+				$public_shadow = item_store($item, false, false, true);
+
+				logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
+			}
+		}
+	}
+
+	/**
+	 * @brief Add a shadow entry for a given item id that is a comment
+	 *
+	 * This function does the same like the function above - but for comments
+	 *
+	 * @param integer $itemid Item ID that should be added
+	 */
+	public static function addShadowPost($itemid) {
+		$item = dba::selectFirst('item', [], ['id' => $itemid]);
+		if (!DBM::is_result($item)) {
+			return;
+		}
+
+		// Is it a toplevel post?
+		if ($item['id'] == $item['parent']) {
+			self::addShadow($itemid);
+			return;
+		}
+
+		// Is this a shadow entry?
+		if ($item['uid'] == 0)
+			return;
+
+		// Is there a shadow parent?
+		if (!dba::exists('item', ['uri' => $item['parent-uri'], 'uid' => 0])) {
+			return;
+		}
+
+		// Is there already a shadow entry?
+		if (dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
+			return;
+		}
+
+		// Preparing public shadow (removing user specific data)
+		require_once("include/items.php");
+
+		unset($item['id']);
+		$item['uid'] = 0;
+		$item['origin'] = 0;
+		$item['wall'] = 0;
+		$item['contact-id'] = Contact::getIdForURL($item['author-link'], 0);
+
+		if (in_array($item['type'], ["net-comment", "wall-comment"])) {
+			$item['type'] = 'remote-comment';
+		} elseif ($item['type'] == 'wall') {
+			$item['type'] = 'remote';
+		}
+
+		$public_shadow = item_store($item, false, false, true);
+
+		logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
+	}
 }