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anti-bot.php: add comments to _create_antibot

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Zankaria 2024-07-11 21:16:55 +02:00
parent 35388a942e
commit 4e7f53216d
1 changed files with 5 additions and 0 deletions
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5
inc/anti-bot.php
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@ -195,11 +195,15 @@ function _create_antibot($board, $thread) {
$antibot = new AntiBot(array($board, $thread)); $antibot = new AntiBot(array($board, $thread));
// Delete old expired antispam, skipping those with NULL expiration timestamps (infinite lifetime).
if (!isset($purged_old_antispam)) { if (!isset($purged_old_antispam)) {
$purged_old_antispam = true; $purged_old_antispam = true;
query('DELETE FROM ``antispam`` WHERE `expires` < UNIX_TIMESTAMP()') or error(db_error()); query('DELETE FROM ``antispam`` WHERE `expires` < UNIX_TIMESTAMP()') or error(db_error());
} }
// Keep the now invalid timestamps around for a bit to enable users to post if they're still on an old version of
// the HTML page.
// By virtue of existing, we know that we're making a new version of the page, and the user from now on may just reload.
if ($thread) if ($thread)
$query = prepare('UPDATE ``antispam`` SET `expires` = UNIX_TIMESTAMP() + :expires WHERE `board` = :board AND `thread` = :thread AND `expires` IS NULL'); $query = prepare('UPDATE ``antispam`` SET `expires` = UNIX_TIMESTAMP() + :expires WHERE `board` = :board AND `thread` = :thread AND `expires` IS NULL');
else else
@ -211,6 +215,7 @@ function _create_antibot($board, $thread) {
$query->bindValue(':expires', $config['spam']['hidden_inputs_expire']); $query->bindValue(':expires', $config['spam']['hidden_inputs_expire']);
$query->execute() or error(db_error($query)); $query->execute() or error(db_error($query));
// Insert an antispam with infinite life as the HTML page of a thread might last well beyond the expiry date.
$query = prepare('INSERT INTO ``antispam`` VALUES (:board, :thread, :hash, UNIX_TIMESTAMP(), NULL, 0)'); $query = prepare('INSERT INTO ``antispam`` VALUES (:board, :thread, :hash, UNIX_TIMESTAMP(), NULL, 0)');
$query->bindValue(':board', $board); $query->bindValue(':board', $board);
$query->bindValue(':thread', $thread); $query->bindValue(':thread', $thread);