322 lines
12 KiB
PHP
322 lines
12 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2020, Friendica
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Worker;
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use Friendica\Core\Logger;
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use Friendica\Core\Worker;
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use Friendica\Database\DBA;
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use Friendica\DI;
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/**
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* The script is called from time to time to clean the database entries and remove orphaned data.
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*/
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class DBClean {
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public static function execute($stage = 0) {
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if (!DI::config()->get('system', 'dbclean', false)) {
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return;
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}
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if ($stage == 0) {
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self::forkCleanProcess();
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} else {
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self::removeOrphans($stage);
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}
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}
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/**
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* Fork the different DBClean processes
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*/
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private static function forkCleanProcess() {
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// Get the expire days for step 8 and 9
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$days = DI::config()->get('system', 'dbclean-expire-days', 0);
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for ($i = 1; $i <= 10; $i++) {
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// Execute the background script for a step when it isn't finished.
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// Execute step 8 and 9 only when $days is defined.
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if (!DI::config()->get('system', 'finished-dbclean-'.$i, false) && (($i < 8) || ($i > 9) || ($days > 0))) {
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Worker::add(PRIORITY_LOW, 'DBClean', $i);
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}
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}
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}
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/**
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* Remove orphaned database entries
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*
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* @param integer $stage What should be deleted?
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*
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* Values for $stage:
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* ------------------
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* 1: Old global item entries from item table without user copy.
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* 2: Items without parents.
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* 3: Orphaned data from thread table.
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* 4: Orphaned data from notify table.
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* 5: Orphaned data from notify-threads table.
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* 6: Legacy functionality (removed)
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* 7: Orphaned data from term table.
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* 8: Expired threads.
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* 9: Old global item entries from expired threads.
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* 10: Old conversations.
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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private static function removeOrphans($stage) {
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// We split the deletion in many small tasks
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$limit = DI::config()->get('system', 'dbclean-expire-limit', 1000);
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// Get the expire days for step 8 and 9
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$days = DI::config()->get('system', 'dbclean-expire-days', 0);
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$days_unclaimed = DI::config()->get('system', 'dbclean-expire-unclaimed', 90);
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if ($days_unclaimed == 0) {
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$days_unclaimed = $days;
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}
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if ($stage == 1) {
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if ($days_unclaimed <= 0) {
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return;
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}
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$last_id = DI::config()->get('system', 'dbclean-last-id-1', 0);
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Logger::log("Deleting old global item entries from item table without user copy. Last ID: ".$last_id);
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$r = DBA::p("SELECT `id`, `guid` FROM `item` WHERE `uid` = 0 AND
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NOT EXISTS (SELECT `guid` FROM `item` AS `i` WHERE `item`.`guid` = `i`.`guid` AND `i`.`uid` != 0) AND
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`received` < UTC_TIMESTAMP() - INTERVAL ? DAY AND `id` >= ?
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ORDER BY `id` LIMIT ?", $days_unclaimed, $last_id, $limit);
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$count = DBA::numRows($r);
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if ($count > 0) {
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Logger::log("found global item orphans: ".$count);
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while ($orphan = DBA::fetch($r)) {
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$last_id = $orphan["id"];
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Logger::info('Delete global orphan item', ['id' => $orphan['id'], 'guid' => $orphan['guid']]);
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DBA::delete('item', ['id' => $orphan["id"]]);
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}
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Worker::add(PRIORITY_MEDIUM, 'DBClean', 1, $last_id);
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} else {
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Logger::log("No global item orphans found");
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}
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DBA::close($r);
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Logger::log("Done deleting ".$count." old global item entries from item table without user copy. Last ID: ".$last_id);
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DI::config()->set('system', 'dbclean-last-id-1', $last_id);
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} elseif ($stage == 2) {
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$last_id = DI::config()->get('system', 'dbclean-last-id-2', 0);
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Logger::log("Deleting items without parents. Last ID: ".$last_id);
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$r = DBA::p("SELECT `id`, `guid` FROM `item`
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WHERE NOT EXISTS (SELECT `id` FROM `item` AS `i` WHERE `item`.`parent` = `i`.`id`)
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AND `id` >= ? ORDER BY `id` LIMIT ?", $last_id, $limit);
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$count = DBA::numRows($r);
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if ($count > 0) {
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Logger::log("found item orphans without parents: ".$count);
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while ($orphan = DBA::fetch($r)) {
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$last_id = $orphan["id"];
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Logger::info('Delete orphan item', ['id' => $orphan['id'], 'guid' => $orphan['guid']]);
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DBA::delete('item', ['id' => $orphan["id"]]);
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}
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Worker::add(PRIORITY_MEDIUM, 'DBClean', 2, $last_id);
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} else {
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Logger::log("No item orphans without parents found");
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}
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DBA::close($r);
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Logger::log("Done deleting ".$count." items without parents. Last ID: ".$last_id);
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DI::config()->set('system', 'dbclean-last-id-2', $last_id);
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if ($count < $limit) {
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DI::config()->set('system', 'finished-dbclean-2', true);
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}
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} elseif ($stage == 3) {
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$last_id = DI::config()->get('system', 'dbclean-last-id-3', 0);
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Logger::log("Deleting orphaned data from thread table. Last ID: ".$last_id);
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$r = DBA::p("SELECT `iid` FROM `thread`
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WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`parent` = `thread`.`iid`) AND `iid` >= ?
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ORDER BY `iid` LIMIT ?", $last_id, $limit);
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$count = DBA::numRows($r);
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if ($count > 0) {
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Logger::log("found thread orphans: ".$count);
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while ($orphan = DBA::fetch($r)) {
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$last_id = $orphan["iid"];
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DBA::delete('thread', ['iid' => $orphan["iid"]]);
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}
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Worker::add(PRIORITY_MEDIUM, 'DBClean', 3, $last_id);
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} else {
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Logger::log("No thread orphans found");
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}
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DBA::close($r);
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Logger::log("Done deleting ".$count." orphaned data from thread table. Last ID: ".$last_id);
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DI::config()->set('system', 'dbclean-last-id-3', $last_id);
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if ($count < $limit) {
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DI::config()->set('system', 'finished-dbclean-3', true);
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}
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} elseif ($stage == 4) {
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$last_id = DI::config()->get('system', 'dbclean-last-id-4', 0);
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Logger::log("Deleting orphaned data from notify table. Last ID: ".$last_id);
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$r = DBA::p("SELECT `iid`, `id` FROM `notify`
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WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `notify`.`iid`) AND `id` >= ?
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ORDER BY `id` LIMIT ?", $last_id, $limit);
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$count = DBA::numRows($r);
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if ($count > 0) {
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Logger::log("found notify orphans: ".$count);
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while ($orphan = DBA::fetch($r)) {
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$last_id = $orphan["id"];
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DBA::delete('notify', ['iid' => $orphan["iid"]]);
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}
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Worker::add(PRIORITY_MEDIUM, 'DBClean', 4, $last_id);
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} else {
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Logger::log("No notify orphans found");
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}
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DBA::close($r);
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Logger::log("Done deleting ".$count." orphaned data from notify table. Last ID: ".$last_id);
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DI::config()->set('system', 'dbclean-last-id-4', $last_id);
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if ($count < $limit) {
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DI::config()->set('system', 'finished-dbclean-4', true);
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}
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} elseif ($stage == 5) {
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$last_id = DI::config()->get('system', 'dbclean-last-id-5', 0);
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Logger::log("Deleting orphaned data from notify-threads table. Last ID: ".$last_id);
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$r = DBA::p("SELECT `id` FROM `notify-threads`
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WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`parent` = `notify-threads`.`master-parent-item`) AND `id` >= ?
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ORDER BY `id` LIMIT ?", $last_id, $limit);
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$count = DBA::numRows($r);
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if ($count > 0) {
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Logger::log("found notify-threads orphans: ".$count);
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while ($orphan = DBA::fetch($r)) {
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$last_id = $orphan["id"];
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DBA::delete('notify-threads', ['id' => $orphan["id"]]);
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}
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Worker::add(PRIORITY_MEDIUM, 'DBClean', 5, $last_id);
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} else {
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Logger::log("No notify-threads orphans found");
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}
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DBA::close($r);
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Logger::log("Done deleting ".$count." orphaned data from notify-threads table. Last ID: ".$last_id);
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DI::config()->set('system', 'dbclean-last-id-5', $last_id);
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if ($count < $limit) {
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DI::config()->set('system', 'finished-dbclean-5', true);
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}
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} elseif ($stage == 6) {
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// The legacy functionality had been removed
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DI::config()->set('system', 'finished-dbclean-6', true);
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} elseif ($stage == 7) {
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// The legacy functionality had been removed
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DI::config()->set('system', 'finished-dbclean-7', true);
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} elseif ($stage == 8) {
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if ($days <= 0) {
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return;
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}
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$last_id = DI::config()->get('system', 'dbclean-last-id-8', 0);
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Logger::log("Deleting expired threads. Last ID: ".$last_id);
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$r = DBA::p("SELECT `thread`.`iid` FROM `thread`
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INNER JOIN `contact` ON `thread`.`contact-id` = `contact`.`id` AND NOT `notify_new_posts`
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WHERE `thread`.`received` < UTC_TIMESTAMP() - INTERVAL ? DAY
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AND NOT `thread`.`mention` AND NOT `thread`.`starred`
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AND NOT `thread`.`wall` AND NOT `thread`.`origin`
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AND `thread`.`uid` != 0 AND `thread`.`iid` >= ?
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AND NOT `thread`.`iid` IN (SELECT `parent` FROM `item`
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WHERE (`item`.`starred` OR (`item`.`resource-id` != '')
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OR (`item`.`file` != '') OR (`item`.`event-id` != '')
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OR (`item`.`attach` != '') OR `item`.`wall` OR `item`.`origin`)
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AND `item`.`parent` = `thread`.`iid`)
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ORDER BY `thread`.`iid` LIMIT ?", $days, $last_id, $limit);
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$count = DBA::numRows($r);
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if ($count > 0) {
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Logger::log("found expired threads: ".$count);
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while ($thread = DBA::fetch($r)) {
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$last_id = $thread["iid"];
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DBA::delete('thread', ['iid' => $thread["iid"]]);
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}
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Worker::add(PRIORITY_MEDIUM, 'DBClean', 8, $last_id);
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} else {
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Logger::log("No expired threads found");
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}
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DBA::close($r);
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Logger::log("Done deleting ".$count." expired threads. Last ID: ".$last_id);
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DI::config()->set('system', 'dbclean-last-id-8', $last_id);
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} elseif ($stage == 9) {
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if ($days <= 0) {
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return;
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}
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$last_id = DI::config()->get('system', 'dbclean-last-id-9', 0);
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$till_id = DI::config()->get('system', 'dbclean-last-id-8', 0);
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Logger::log("Deleting old global item entries from expired threads from ID ".$last_id." to ID ".$till_id);
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$r = DBA::p("SELECT `id`, `guid` FROM `item` WHERE `uid` = 0 AND
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NOT EXISTS (SELECT `guid` FROM `item` AS `i` WHERE `item`.`guid` = `i`.`guid` AND `i`.`uid` != 0) AND
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`received` < UTC_TIMESTAMP() - INTERVAL 90 DAY AND `id` >= ? AND `id` <= ?
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ORDER BY `id` LIMIT ?", $last_id, $till_id, $limit);
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$count = DBA::numRows($r);
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if ($count > 0) {
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Logger::log("found global item entries from expired threads: ".$count);
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while ($orphan = DBA::fetch($r)) {
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$last_id = $orphan["id"];
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Logger::info('Delete expired thread item', ['id' => $orphan['id'], 'guid' => $orphan['guid']]);
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DBA::delete('item', ['id' => $orphan["id"]]);
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}
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Worker::add(PRIORITY_MEDIUM, 'DBClean', 9, $last_id);
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} else {
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Logger::log("No global item entries from expired threads");
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}
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DBA::close($r);
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Logger::log("Done deleting ".$count." old global item entries from expired threads. Last ID: ".$last_id);
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DI::config()->set('system', 'dbclean-last-id-9', $last_id);
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} elseif ($stage == 10) {
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$last_id = DI::config()->get('system', 'dbclean-last-id-10', 0);
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$days = intval(DI::config()->get('system', 'dbclean_expire_conversation', 90));
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Logger::log("Deleting old conversations. Last created: ".$last_id);
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$r = DBA::p("SELECT `received`, `item-uri` FROM `conversation`
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WHERE `received` < UTC_TIMESTAMP() - INTERVAL ? DAY
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ORDER BY `received` LIMIT ?", $days, $limit);
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$count = DBA::numRows($r);
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if ($count > 0) {
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Logger::log("found old conversations: ".$count);
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while ($orphan = DBA::fetch($r)) {
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$last_id = $orphan["received"];
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DBA::delete('conversation', ['item-uri' => $orphan["item-uri"]]);
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}
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Worker::add(PRIORITY_MEDIUM, 'DBClean', 10, $last_id);
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} else {
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Logger::log("No old conversations found");
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}
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DBA::close($r);
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Logger::log("Done deleting ".$count." conversations. Last created: ".$last_id);
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DI::config()->set('system', 'dbclean-last-id-10', $last_id);
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}
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}
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}
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