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vichan/tools/delete-stray-images.php

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#!/usr/bin/php
<?php
/*
* delete-stray-images.php - there was a period when undoImage() was not working at all. This meant that
* if an error occured while uploading an image, the uploaded images might not have been deleted.
*
* This script iterates through every board and deletes any stray files in src/ or thumb/ that don't
* exist in the database.
*
*/
require dirname(__FILE__) . '/inc/cli.php';
$boards = listBoards();
foreach ($boards as $board) {
echo "/{$board['uri']}/... ";
openBoard($board['uri']);
$query = query(sprintf("SELECT `file`, `thumb` FROM ``posts_%s`` WHERE `file` IS NOT NULL", $board['uri']));
$valid_src = array();
$valid_thumb = array();
while ($post = $query->fetch(PDO::FETCH_ASSOC)) {
$valid_src[] = $post['file'];
$valid_thumb[] = $post['thumb'];
}
$files_src = array_map('basename', glob($board['dir'] . $config['dir']['img'] . '*'));
$files_thumb = array_map('basename', glob($board['dir'] . $config['dir']['thumb'] . '*'));
$stray_src = array_diff($files_src, $valid_src);
$stray_thumb = array_diff($files_thumb, $valid_thumb);
$stats = array(
'deleted' => 0,
'size' => 0
);
foreach ($stray_src as $src) {
$stats['deleted']++;
$stats['size'] = filesize($board['dir'] . $config['dir']['img'] . $src);
if (!file_unlink($board['dir'] . $config['dir']['img'] . $src)) {
$er = error_get_last();
die("error: " . $er['message'] . "\n");
}
}
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foreach ($stray_thumb as $thumb) {
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$stats['deleted']++;
$stats['size'] = filesize($board['dir'] . $config['dir']['thumb'] . $thumb);
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if (!file_unlink($board['dir'] . $config['dir']['thumb'] . $thumb)) {
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$er = error_get_last();
die("error: " . $er['message'] . "\n");
}
}
echo sprintf("deleted %s files (%s)\n", $stats['deleted'], format_bytes($stats['size']));
}