Add delivery queue number manipulation

- Add new ItemDeliveryData model class
- Add queue_count initialization in Notifier
- Add queue_done incrementation in various Delivery tasks

src/Model/Item.php

@@ -50,7 +50,8 @@ class Item extends BaseObject
 	const PT_PERSONAL_NOTE = 128;
 
 	// Field list that is used to display the items
-	const DISPLAY_FIELDLIST = ['uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'guid', 'network',
+	const DISPLAY_FIELDLIST = [
+		'uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'guid', 'network',
 		'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
 		'wall', 'private', 'starred', 'origin', 'title', 'body', 'file', 'attach', 'language',
 		'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
@@ -61,7 +62,9 @@ class Item extends BaseObject
 		'writable', 'self', 'cid', 'alias',
 		'event-id', 'event-created', 'event-edited', 'event-start', 'event-finish',
 		'event-summary', 'event-desc', 'event-location', 'event-type',
-			'event-nofinish', 'event-adjust', 'event-ignore', 'event-id'];
+		'event-nofinish', 'event-adjust', 'event-ignore', 'event-id',
+		'delivery_queue_count', 'delivery_queue_done'
+	];
 
 	// Field list that is used to deliver items via the protocols
 	const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'guid',
@@ -80,9 +83,6 @@ class Item extends BaseObject
 	// Field list for "item-content" table that is not present in the "item" table
 	const CONTENT_FIELDLIST = ['language'];
 
-	// Field list for additional delivery data
-	const DELIVERY_DATA_FIELDLIST = ['postopts', 'inform'];
-
 	// All fields in the item table
 	const ITEM_FIELDLIST = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent', 'guid',
 			'contact-id', 'type', 'wall', 'gravity', 'extid', 'icid', 'iaid', 'psid',
@@ -190,7 +190,7 @@ class Item extends BaseObject
 
 		// Fetch data from the item-content table whenever there is content there
 		if (self::isLegacyMode()) {
-			$legacy_fields = array_merge(self::DELIVERY_DATA_FIELDLIST, self::MIXED_CONTENT_FIELDLIST);
+			$legacy_fields = array_merge(ItemDeliveryData::FIELD_LIST, self::MIXED_CONTENT_FIELDLIST);
 			foreach ($legacy_fields as $field) {
 				if (empty($row[$field]) && !empty($row['internal-item-' . $field])) {
 					$row[$field] = $row['internal-item-' . $field];
@@ -551,7 +551,7 @@ class Item extends BaseObject
 
 		$fields['item-content'] = array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST);
 
-		$fields['item-delivery-data'] = self::DELIVERY_DATA_FIELDLIST;
+		$fields['item-delivery-data'] = ItemDeliveryData::FIELD_LIST;
 
 		$fields['permissionset'] = ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
 
@@ -730,7 +730,7 @@ class Item extends BaseObject
 		foreach ($fields as $table => $table_fields) {
 			foreach ($table_fields as $field => $select) {
 				if (empty($selected) || in_array($select, $selected)) {
-					$legacy_fields = array_merge(self::DELIVERY_DATA_FIELDLIST, self::MIXED_CONTENT_FIELDLIST);
+					$legacy_fields = array_merge(ItemDeliveryData::FIELD_LIST, self::MIXED_CONTENT_FIELDLIST);
 					if (self::isLegacyMode() && in_array($select, $legacy_fields)) {
 						$selection[] = "`item`.`".$select."` AS `internal-item-" . $select . "`";
 					}
@@ -810,7 +810,9 @@ class Item extends BaseObject
 			}
 		}
 
-		$clear_fields = ['bookmark', 'type', 'author-name', 'author-avatar', 'author-link', 'owner-name', 'owner-avatar', 'owner-link'];
+		$delivery_data = ItemDeliveryData::extractFields($fields);
+
+		$clear_fields = ['bookmark', 'type', 'author-name', 'author-avatar', 'author-link', 'owner-name', 'owner-avatar', 'owner-link', 'postopts', 'inform'];
 		foreach ($clear_fields as $field) {
 			if (array_key_exists($field, $fields)) {
 				$fields[$field] = null;
@@ -831,12 +833,6 @@ class Item extends BaseObject
 			$files = null;
 		}
 
-		$delivery_data = ['postopts' => defaults($fields, 'postopts', ''),
-			'inform' => defaults($fields, 'inform', '')];
-
-		$fields['postopts'] = null;
-		$fields['inform'] = null;
-
 		if (!empty($fields)) {
 			$success = DBA::update('item', $fields, $condition);
 
@@ -914,7 +910,7 @@ class Item extends BaseObject
 				}
 			}
 
-			self::updateDeliveryData($item['id'], $delivery_data);
+			ItemDeliveryData::update($item['id'], $delivery_data);
 
 			self::updateThread($item['id']);
 
@@ -1061,7 +1057,7 @@ class Item extends BaseObject
 			self::delete(['uri' => $item['uri'], 'uid' => 0, 'deleted' => false], $priority);
 		}
 
-		DBA::delete('item-delivery-data', ['iid' => $item['id']]);
+		ItemDeliveryData::delete($item['id']);
 
 		// We don't delete the item-activity here, since we need some of the data for ActivityPub
 
@@ -1238,6 +1234,8 @@ class Item extends BaseObject
 
 	public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
 	{
+		$orig_item = $item;
+
 		// If it is a posting where users should get notifications, then define it as wall posting
 		if ($notify) {
 			$item['wall'] = 1;
@@ -1661,8 +1659,7 @@ class Item extends BaseObject
 			self::insertContent($item);
 		}
 
-		$delivery_data = ['postopts' => defaults($item, 'postopts', ''),
+		$delivery_data = ItemDeliveryData::extractFields($item);
-			'inform' => defaults($item, 'inform', '')];
 
 		unset($item['postopts']);
 		unset($item['inform']);
@@ -1701,10 +1698,7 @@ class Item extends BaseObject
 			if ($spoolpath != "") {
 				$spool = $spoolpath.'/'.$file;
 
-				// Ensure to have the removed data from above again in the item array
+				file_put_contents($spool, json_encode($orig_item));
-				$item = array_merge($item, $delivery_data);
-
-				file_put_contents($spool, json_encode($item));
 				Logger::log("Item wasn't stored - Item was spooled into file ".$file, Logger::DEBUG);
 			}
 			return 0;
@@ -1805,9 +1799,7 @@ class Item extends BaseObject
 			self::updateThread($parent_id);
 		}
 
-		$delivery_data['iid'] = $current_post;
+		ItemDeliveryData::insert($item['id'], $delivery_data);
-
-		self::insertDeliveryData($delivery_data);
 
 		DBA::commit();
 
@@ -1848,35 +1840,6 @@ class Item extends BaseObject
 		return $current_post;
 	}
 
-	/**
-	 * @brief Insert a new item delivery data entry
-	 *
-	 * @param array $item The item fields that are to be inserted
-	 */
-	private static function insertDeliveryData($delivery_data)
-	{
-		if (empty($delivery_data['iid']) || (empty($delivery_data['postopts']) && empty($delivery_data['inform']))) {
-			return;
-		}
-
-		DBA::insert('item-delivery-data', $delivery_data);
-	}
-
-	/**
-	 * @brief Update an existing item delivery data entry
-	 *
-	 * @param integer $id The item id that is to be updated
-	 * @param array $item The item fields that are to be inserted
-	 */
-	private static function updateDeliveryData($id, $delivery_data)
-	{
-		if (empty($id) || (empty($delivery_data['postopts']) && empty($delivery_data['inform']))) {
-			return;
-		}
-
-		DBA::update('item-delivery-data', $delivery_data, ['iid' => $id], true);
-	}
-
 	/**
 	 * @brief Insert a new item content entry
 	 *

src/Model/ItemDeliveryData.php

@@ -0,0 +1,114 @@
+<?php
+
+/**
+ * @file src/Model/ItemDeliveryData.php
+ */
+
+namespace Friendica\Model;
+
+use Friendica\Database\DBA;
+
+class ItemDeliveryData
+{
+	const FIELD_LIST = [
+		// Legacy fields moved from item table
+		'postopts',
+		'inform',
+		// New delivery fields with virtual field name in item fields
+		'queue_count' => 'delivery_queue_count',
+		'queue_done'  => 'delivery_queue_done',
+	];
+
+	/**
+	 * Extract delivery data from the provided item fields
+	 *
+	 * @param array $fields
+	 * @return array
+	 */
+	public static function extractFields(array &$fields)
+	{
+		$delivery_data = [];
+		foreach (ItemDeliveryData::FIELD_LIST as $key => $field) {
+			if (is_int($key) && isset($fields[$field])) {
+				// Legacy field moved from item table
+				$delivery_data[$field] = $fields[$field];
+				$fields[$field] = null;
+			} elseif (isset($fields[$field])) {
+				// New delivery field with virtual field name in item fields
+				$delivery_data[$key] = $fields[$field];
+				unset($fields[$field]);
+			}
+		}
+
+		return $delivery_data;
+	}
+
+	/**
+	 * Increments the queue_done for the given item ID.
+	 *
+	 * Avoids racing condition between multiple delivery threads.
+	 *
+	 * @param integer $item_id
+	 * @return bool
+	 */
+	public static function incrementQueueDone($item_id)
+	{
+		return DBA::e('UPDATE `item-delivery-data` SET `queue_done` = `queue_done` + 1 WHERE `iid` = ?', $item_id);
+	}
+
+	/**
+	 * Insert a new item delivery data entry
+	 *
+	 * @param integer $item_id
+	 * @param array   $fields
+	 * @return bool
+	 */
+	public static function insert($item_id, array $fields)
+	{
+		if (empty($item_id)) {
+			throw new \BadMethodCallException('Empty item_id');
+		}
+
+		$fields['iid'] = $item_id;
+
+		return DBA::insert('item-delivery-data', $fields);
+	}
+
+	/**
+	 * Update/Insert item delivery data
+	 *
+	 * If you want to update queue_done, please use incrementQueueDone instead.
+	 *
+	 * @param integer $item_id
+	 * @param array   $fields
+	 * @return bool
+	 */
+	public static function update($item_id, array $fields)
+	{
+		if (empty($item_id)) {
+			throw new \BadMethodCallException('Empty item_id');
+		}
+
+		if (empty($fields)) {
+			// Nothing to do, update successful
+			return true;
+		}
+
+		return DBA::update('item-delivery-data', $fields, ['iid' => $item_id], true);
+	}
+
+	/**
+	 * Delete item delivery data
+	 *
+	 * @param integer $item_id
+	 * @return bool
+	 */
+	public static function delete($item_id)
+	{
+		if (empty($item_id)) {
+			throw new \BadMethodCallException('Empty item_id');
+		}
+
+		return DBA::delete('item-delivery-data', ['iid' => $item_id]);
+	}
+}

src/Worker/APDelivery.php

@@ -7,6 +7,7 @@ namespace Friendica\Worker;
 use Friendica\BaseObject;
 use Friendica\Core\Logger;
 use Friendica\Core\Worker;
+use Friendica\Model\ItemDeliveryData;
 use Friendica\Protocol\ActivityPub;
 use Friendica\Model\Item;
 use Friendica\Util\HTTPSignature;
@@ -40,6 +41,10 @@ class APDelivery extends BaseObject
 			if (!empty($data)) {
 				$success = HTTPSignature::transmit($data, $inbox, $uid);
 			}
+
+			if ($success && in_array($cmd, [Delivery::POST, Delivery::COMMENT])) {
+				ItemDeliveryData::incrementQueueDone($target_id);
+			}
 		}
 
 		if (!$success) {

src/Worker/Delivery.php

@@ -13,6 +13,7 @@ use Friendica\Core\System;
 use Friendica\Database\DBA;
 use Friendica\Model\Contact;
 use Friendica\Model\Item;
+use Friendica\Model\ItemDeliveryData;
 use Friendica\Model\Queue;
 use Friendica\Model\User;
 use Friendica\Protocol\DFRN;
@@ -180,10 +181,18 @@ class Delivery extends BaseObject
 
 			case Protocol::DFRN:
 				self::deliverDFRN($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
+
+				if (in_array($cmd, [Delivery::POST, Delivery::COMMENT])) {
+					ItemDeliveryData::incrementQueueDone($target_id);
+				}
 				break;
 
 			case Protocol::DIASPORA:
 				self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
+
+				if (in_array($cmd, [Delivery::POST, Delivery::COMMENT])) {
+					ItemDeliveryData::incrementQueueDone($target_id);
+				}
 				break;
 
 			case Protocol::OSTATUS:
@@ -201,6 +210,10 @@ class Delivery extends BaseObject
 
 			case Protocol::MAIL:
 				self::deliverMail($cmd, $contact, $owner, $target_item);
+
+				if (in_array($cmd, [Delivery::POST, Delivery::COMMENT])) {
+					ItemDeliveryData::incrementQueueDone($target_id);
+				}
 				break;
 
 			default:

src/Worker/Notifier.php

@@ -15,6 +15,7 @@ use Friendica\Model\Contact;
 use Friendica\Model\Conversation;
 use Friendica\Model\Group;
 use Friendica\Model\Item;
+use Friendica\Model\ItemDeliveryData;
 use Friendica\Model\PushSubscriber;
 use Friendica\Model\User;
 use Friendica\Network\Probe;
@@ -65,6 +66,7 @@ class Notifier
 		$delivery_contacts_stmt = null;
 		$target_item = [];
 		$items = [];
+		$delivery_queue_count = 0;
 
 		if ($cmd == Delivery::MAIL) {
 			$message = DBA::selectFirst('mail', ['uid', 'contact-id'], ['id' => $target_id]);
@@ -150,7 +152,7 @@ class Notifier
 		if (!empty($target_item) && !empty($items)) {
 			$parent = $items[0];
 
-			self::activityPubDelivery($cmd, $target_item, $parent, $a->queue['priority'], $a->query_string['created']);
+			$delivery_queue_count += self::activityPubDelivery($cmd, $target_item, $parent, $a->queue['priority'], $a->query_string['created']);
 
 			$fields = ['network', 'author-id', 'owner-id'];
 			$condition = ['uri' => $target_item["thr-parent"], 'uid' => $target_item["uid"]];
@@ -423,6 +425,9 @@ class Notifier
 			if (DBA::isResult($r)) {
 				foreach ($r as $rr) {
 					$conversants[] = $rr['id'];
+
+					$delivery_queue_count++;
+
 					Logger::log('Public delivery of item ' . $target_item["guid"] . ' (' . $target_id . ') to ' . json_encode($rr), Logger::DEBUG);
 
 					// Ensure that posts with our own protocol arrives before Diaspora posts arrive.
@@ -454,6 +459,8 @@ class Notifier
 				continue;
 			}
 
+			$delivery_queue_count++;
+
 			Logger::log('Delivery of item ' . $target_id . ' to ' . json_encode($contact), Logger::DEBUG);
 
 			// Ensure that posts with our own protocol arrives before Diaspora posts arrive.
@@ -473,11 +480,13 @@ class Notifier
 		// send salmon slaps to mentioned remote tags (@foo@example.com) in OStatus posts
 		// They are especially used for notifications to OStatus users that don't follow us.
 		if (!Config::get('system', 'dfrn_only') && count($url_recipients) && ($public_message || $push_notify) && !empty($target_item)) {
+			$delivery_queue_count += count($url_recipients);
 			$slap = OStatus::salmon($target_item, $owner);
 			foreach ($url_recipients as $url) {
 				Logger::log('Salmon delivery of item ' . $target_id . ' to ' . $url);
 				/// @TODO Redeliver/queue these items on failure, though there is no contact record
 				Salmon::slapper($owner, $url, $slap);
+				ItemDeliveryData::incrementQueueDone($target_id);
 			}
 		}
 
@@ -492,6 +501,10 @@ class Notifier
 		if (!empty($target_item)) {
 			Logger::log('Calling hooks for ' . $cmd . ' ' . $target_id, Logger::DEBUG);
 
+			if (in_array($cmd, [Delivery::POST, Delivery::COMMENT])) {
+				ItemDeliveryData::update($target_item['id'], ['queue_count' => $delivery_queue_count]);
+			}
+
 			Hook::fork($a->queue['priority'], 'notifier_normal', $target_item);
 
 			Hook::callAll('notifier_end', $target_item);
@@ -539,6 +552,7 @@ class Notifier
 	 * @param array  $parent
 	 * @param int    $priority    The priority the Notifier queue item was created with
 	 * @param string $created     The date the Notifier queue item was created on
+	 * @return int The number of delivery tasks created
 	 */
 	private static function activityPubDelivery($cmd, array $target_item, array $parent, $priority, $created)
 	{
@@ -549,7 +563,7 @@ class Notifier
 			Logger::log('Origin item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' will be distributed.', Logger::DEBUG);
 		} elseif (!DBA::exists('conversation', ['item-uri' => $target_item['uri'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB])) {
 			Logger::log('Remote item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' is no AP post. It will not be distributed.', Logger::DEBUG);
-			return;
+			return 0;
 		} elseif ($parent['origin']) {
 			// Remote items are transmitted via the personal inboxes.
 			// Doing so ensures that the dedicated receiver will get the message.
@@ -559,7 +573,7 @@ class Notifier
 
 		if (empty($inboxes)) {
 			Logger::log('No inboxes found for item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . '. It will not be distributed.', Logger::DEBUG);
-			return;
+			return 0;
 		}
 
 		// Fill the item cache
@@ -571,6 +585,8 @@ class Notifier
 			Worker::add(['priority' => $priority, 'created' => $created, 'dont_fork' => true],
 					'APDelivery', $cmd, $target_item['id'], $inbox, $target_item['contact-uid']);
 		}
+
+		return count($inboxes);
 	}
 
 	private static function isForumPost(array $item, array $owner)