304 lines
11 KiB
PHP
304 lines
11 KiB
PHP
<?php
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/**
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* @file include/dbclean.php
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* @brief 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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use Friendica\Core\Config;
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use Friendica\Core\Worker;
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function dbclean_run(&$argv, &$argc) {
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if (!Config::get('system', 'dbclean', false)) {
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return;
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}
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if ($argc == 2) {
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$stage = intval($argv[1]);
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} else {
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$stage = 0;
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}
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// Get the expire days for step 8 and 9
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$days = Config::get('system', 'dbclean-expire-days', 0);
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if ($stage == 0) {
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for ($i = 1; $i <= 9; $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 $days is defined.
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if (!Config::get('system', 'finished-dbclean-'.$i, false) && (($i < 8) || ($days > 0))) {
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Worker::add(PRIORITY_LOW, 'dbclean', $i);
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}
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}
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} else {
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remove_orphans($stage);
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}
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}
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/**
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* @brief Remove orphaned database entries
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* @param integer $stage What should be deleted?
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*
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* Values for $stage:
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* ------------------
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* 1: Old global item entries from item table without user copy.
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* 2: Items without parents.
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* 3: Orphaned data from thread table.
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* 4: Orphaned data from notify table.
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* 5: Orphaned data from notify-threads table.
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* 6: Orphaned data from sign table.
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* 7: Orphaned data from term table.
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* 8: Expired threads.
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* 9: Old global item entries from expired threads
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*/
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function remove_orphans($stage = 0) {
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global $db;
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$count = 0;
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// We split the deletion in many small tasks
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$limit = 1000;
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// Get the expire days for step 8 and 9
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$days = Config::get('system', 'dbclean-expire-days', 0);
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if ($stage == 1) {
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$last_id = Config::get('system', 'dbclean-last-id-1', 0);
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logger("Deleting old global item entries from item table without user copy. Last ID: ".$last_id);
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$r = dba::p("SELECT `id` 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` >= ?
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ORDER BY `id` LIMIT ".intval($limit), $last_id);
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$count = dba::num_rows($r);
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if ($count > 0) {
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logger("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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dba::delete('item', array('id' => $orphan["id"]));
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}
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} else {
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logger("No global item orphans found");
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}
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dba::close($r);
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logger("Done deleting ".$count." old global item entries from item table without user copy. Last ID: ".$last_id);
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Config::set('system', 'dbclean-last-id-1', $last_id);
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} elseif ($stage == 2) {
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$last_id = Config::get('system', 'dbclean-last-id-2', 0);
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logger("Deleting items without parents. Last ID: ".$last_id);
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$r = dba::p("SELECT `id` FROM `item`
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WHERE NOT EXISTS (SELECT `id` FROM `item` AS `i` WHERE `item`.`parent` = `i`.`id`)
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AND `id` >= ? ORDER BY `id` LIMIT ".intval($limit), $last_id);
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$count = dba::num_rows($r);
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if ($count > 0) {
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logger("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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dba::delete('item', array('id' => $orphan["id"]));
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}
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} else {
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logger("No item orphans without parents found");
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}
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dba::close($r);
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logger("Done deleting ".$count." items without parents. Last ID: ".$last_id);
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Config::set('system', 'dbclean-last-id-2', $last_id);
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if ($count < $limit) {
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Config::set('system', 'finished-dbclean-2', true);
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}
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} elseif ($stage == 3) {
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$last_id = Config::get('system', 'dbclean-last-id-3', 0);
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logger("Deleting orphaned data from thread table. Last ID: ".$last_id);
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$r = dba::p("SELECT `iid` FROM `thread`
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WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`parent` = `thread`.`iid`) AND `iid` >= ?
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ORDER BY `iid` LIMIT ".intval($limit), $last_id);
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$count = dba::num_rows($r);
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if ($count > 0) {
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logger("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', array('iid' => $orphan["iid"]));
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}
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} else {
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logger("No thread orphans found");
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}
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dba::close($r);
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logger("Done deleting ".$count." orphaned data from thread table. Last ID: ".$last_id);
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Config::set('system', 'dbclean-last-id-3', $last_id);
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if ($count < $limit) {
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Config::set('system', 'finished-dbclean-3', true);
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}
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} elseif ($stage == 4) {
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$last_id = Config::get('system', 'dbclean-last-id-4', 0);
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logger("Deleting orphaned data from notify table. Last ID: ".$last_id);
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$r = dba::p("SELECT `iid`, `id` FROM `notify`
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WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `notify`.`iid`) AND `id` >= ?
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ORDER BY `id` LIMIT ".intval($limit), $last_id);
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$count = dba::num_rows($r);
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if ($count > 0) {
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logger("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', array('iid' => $orphan["iid"]));
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}
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} else {
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logger("No notify orphans found");
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}
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dba::close($r);
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logger("Done deleting ".$count." orphaned data from notify table. Last ID: ".$last_id);
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Config::set('system', 'dbclean-last-id-4', $last_id);
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if ($count < $limit) {
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Config::set('system', 'finished-dbclean-4', true);
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}
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} elseif ($stage == 5) {
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$last_id = Config::get('system', 'dbclean-last-id-5', 0);
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logger("Deleting orphaned data from notify-threads table. Last ID: ".$last_id);
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$r = dba::p("SELECT `id` FROM `notify-threads`
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WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`parent` = `notify-threads`.`master-parent-item`) AND `id` >= ?
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ORDER BY `id` LIMIT ".intval($limit), $last_id);
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$count = dba::num_rows($r);
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if ($count > 0) {
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logger("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', array('id' => $orphan["id"]));
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}
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} else {
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logger("No notify-threads orphans found");
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}
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dba::close($r);
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logger("Done deleting ".$count." orphaned data from notify-threads table. Last ID: ".$last_id);
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Config::set('system', 'dbclean-last-id-5', $last_id);
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if ($count < $limit) {
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Config::set('system', 'finished-dbclean-5', true);
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}
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} elseif ($stage == 6) {
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$last_id = Config::get('system', 'dbclean-last-id-6', 0);
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logger("Deleting orphaned data from sign table. Last ID: ".$last_id);
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$r = dba::p("SELECT `iid`, `id` FROM `sign`
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WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `sign`.`iid`) AND `id` >= ?
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ORDER BY `id` LIMIT ".intval($limit), $last_id);
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$count = dba::num_rows($r);
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if ($count > 0) {
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logger("found sign 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('sign', array('iid' => $orphan["iid"]));
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}
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} else {
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logger("No sign orphans found");
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}
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dba::close($r);
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logger("Done deleting ".$count." orphaned data from sign table. Last ID: ".$last_id);
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Config::set('system', 'dbclean-last-id-6', $last_id);
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if ($count < $limit) {
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Config::set('system', 'finished-dbclean-6', true);
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}
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} elseif ($stage == 7) {
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$last_id = Config::get('system', 'dbclean-last-id-7', 0);
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logger("Deleting orphaned data from term table. Last ID: ".$last_id);
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$r = dba::p("SELECT `oid`, `tid` FROM `term`
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WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `term`.`oid`) AND `tid` >= ?
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ORDER BY `tid` LIMIT ".intval($limit), $last_id);
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$count = dba::num_rows($r);
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if ($count > 0) {
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logger("found term orphans: ".$count);
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while ($orphan = dba::fetch($r)) {
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$last_id = $orphan["tid"];
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dba::delete('term', array('oid' => $orphan["oid"]));
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}
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} else {
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logger("No term orphans found");
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}
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dba::close($r);
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logger("Done deleting ".$count." orphaned data from term table. Last ID: ".$last_id);
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Config::set('system', 'dbclean-last-id-7', $last_id);
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if ($count < $limit) {
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Config::set('system', 'finished-dbclean-7', true);
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}
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} elseif ($stage == 8) {
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if ($days <= 0) {
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return;
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}
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$last_id = Config::get('system', 'dbclean-last-id-8', 0);
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logger("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 1000", $days, $last_id);
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$count = dba::num_rows($r);
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if ($count > 0) {
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logger("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', array('iid' => $thread["iid"]));
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}
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} else {
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logger("No expired threads found");
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}
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dba::close($r);
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logger("Done deleting ".$count." expired threads. Last ID: ".$last_id);
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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 = Config::get('system', 'dbclean-last-id-9', 0);
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$till_id = Config::get('system', 'dbclean-last-id-8', 0);
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logger("Deleting old global item entries from expired threads from ID ".$last_id." to ID ".$till_id);
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$r = dba::p("SELECT `id` 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 ".intval($limit), $last_id, $till_id);
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$count = dba::num_rows($r);
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if ($count > 0) {
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logger("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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dba::delete('item', array('id' => $orphan["id"]));
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}
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} else {
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logger("No global item entries from expired threads");
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}
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dba::close($r);
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logger("Done deleting ".$count." old global item entries from expired threads. Last ID: ".$last_id);
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Config::set('system', 'dbclean-last-id-9', $last_id);
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}
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// Call it again if not all entries were purged
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if (($stage != 0) && ($count > 0)) {
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Worker::add(PRIORITY_MEDIUM, 'dbclean');
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}
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}
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