<?php

// 生成随机16位访问字符串
$accessToken = substr(md5(uniqid(mt_rand(), true)), 0, 32);
$accessFile = 'access_token.txt';

// 检查或生成访问令牌
if (!file_exists($accessFile)) {
    file_put_contents($accessFile, $accessToken);
} else {
    $accessToken = trim(file_get_contents($accessFile));
}

// 验证访问令牌
if (!isset($_GET['token']) || $_GET['token'] !== $accessToken) {
    die('无效访问令牌');
}

$message = '';
if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_FILES['apk'])) {
    $targetDir = 'uploads/';
    $apkFile = $_FILES['apk'];
    $fileName = basename($apkFile['name']);
    $targetPath = $targetDir . $fileName;
    
    // 检查文件类型
    $fileType = strtolower(pathinfo($targetPath, PATHINFO_EXTENSION));
    if ($fileType != 'apk') {
        $message = '只允许上传APK文件';
    } else {
        // 检查包名
        $tempPath = $apkFile['tmp_name'];
        $packageName = shell_exec("aapt dump badging \"$tempPath\" | grep package | awk -F\"'\" '{print $2}'");
        $packageName = trim($packageName);
        
        if ($packageName !== 'com.f8com.f8laike') {
            $message = '非法的APK';
        } else {
            // 获取版本号
            $versionInfo = shell_exec("aapt dump badging \"$tempPath\" | grep -E 'versionName|versionCode'");
            $versionName = preg_match("/versionName='([^']*)'/", $versionInfo, $matches) ? $matches[1] : '';
            $versionName = trim($versionName);
            
            // 创建上传目录
            if (!file_exists($targetDir)) {
                mkdir($targetDir, 0755, true);
            }
            
            // 移动文件
            if (move_uploaded_file($tempPath, $targetPath)) {
                // 获取客户端IP
                $ip = $_SERVER['HTTP_CLIENT_IP'] ?? 
                      $_SERVER['HTTP_X_FORWARDED_FOR'] ?? 
                      $_SERVER['REMOTE_ADDR'] ?? 
                      'unknown';
                
                // 记录日志
                $log = date('Y-m-d H:i:s') . " - IP: $ip, 上传文件: $fileName, 版本号: $versionName\n";
                file_put_contents($targetDir . 'upload.log', $log, FILE_APPEND);
                
                // 更新最新版本
                $latestPath = $targetDir . 'F8来客_latest.apk';
                
                // 获取当前上传APK的版本号
                $newVersion = $versionName;
                
                // 获取现有最新APK的版本号
                $currentLatestVersion = '0';
                if (file_exists($latestPath)) {
                    $versionInfo = shell_exec("aapt dump badging \"$latestPath\" | grep -E 'versionName|versionCode'");
                    $currentLatestVersion = preg_match("/versionName='([^']*)'/", $versionInfo, $matches) ? $matches[1] : '0';
                    $currentLatestVersion = trim($currentLatestVersion);
                }
                
                // 比较版本号，只有当新版本更高时才覆盖
                if (version_compare($newVersion, $currentLatestVersion) > 0) {
                    if (file_exists($latestPath)) {
                        unlink($latestPath);
                    }
                    if (!copy($targetPath, $latestPath)) {
                        $message = '更新最新版本失败';
                    }
                    $message = '上传成功! 已更新为最新版本: ' . $versionName;
                } else {
                    $message = '上传成功! 当前版本: ' . $versionName . ' (未更新，已有更高版本: ' . $currentLatestVersion . ')';
                }
            } else {
                $message = '上传失败';
            }
        }
    }
}

function getLatestVersionName($dir) {
    $files = glob($dir . '*.apk');
    $maxVersion = '0';
    foreach ($files as $file) {
        if (basename($file) === 'F8来客_latest.apk') continue;
        $version = shell_exec("aapt dump badging \"$file\" | grep versionName | awk -F\"'\" '{print $2}'");
        $version = trim($version);
        if (version_compare($version, $maxVersion) > 0) {
            $maxVersion = $version;
        }
    }
    return $maxVersion;
}
?>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no">
    <title>F8来客 - APK上传</title>
    <style>
        * { box-sizing: border-box; }
        body { 
            font-family: -apple-system, BlinkMacSystemFont, sans-serif;
            margin: 0; padding: 20px; background-color: #fff;
        }
        .container {
            max-width: 600px; margin: 0 auto;
        }
        .logo {
            width: 60px; height: 60px; border-radius: 5px;
            margin-bottom: 15px;
        }
        h1 { 
            font-size: 18px; color: #2a2a2a; font-weight: 700;
            margin-bottom: 30px;
        }
        .message {
            padding: 10px; margin-bottom: 20px;
            border-radius: 5px; text-align: center;
        }
        .success { background-color: #d4edda; color: #155724; }
        .error { background-color: #f8d7da; color: #721c24; }
        .upload-form {
            border: 1px dashed #007aff; padding: 30px;
            text-align: center; border-radius: 5px;
            margin-bottom: 20px;
        }
        .file-input {
            display: none;
        }
        .file-label {
            display: inline-block;
            padding: 12px 24px;
            background-color: #007aff;
            color: white;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
        }
        .submit-btn {
            padding: 12px 24px;
            background-color: #28a745;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
            margin-top: 15px;
        }
        .logout {
            color: #007aff; text-decoration: none;
            display: inline-block; margin-top: 20px;
        }
    </style>
</head>
<body>
    <div class="container">
        <img src="https://www.bltcxj.cn/f8img/logo.jpg" class="logo">
        <h1>APK上传</h1>
        
        <?php if ($message): ?>
            <div class="message <?php echo strpos($message, '成功') !== false ? 'success' : 'error'; ?>">
                <?php echo htmlspecialchars($message); ?>
            </div>
        <?php endif; ?>
        
        <form method="post" enctype="multipart/form-data" class="upload-form">
            <input type="file" name="apk" id="apk" accept=".apk" class="file-input">
            <label for="apk" class="file-label">选择APK文件</label>
            <div id="fileName" style="margin-top: 10px;"></div>
            <button type="submit" class="submit-btn">上传APK</button>
        </form>
        

        <h2>最近上传记录</h2>
        <div class="upload-history">
            <?php
            $logFile = 'uploads/upload.log';
            if (file_exists($logFile)) {
                $lines = file($logFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
                $recentLines = array_slice(array_reverse($lines), 0, 5);
                echo '<ul>';
                foreach ($recentLines as $line) {
                    echo '<li>' . htmlspecialchars($line) . '</li>';
                }
                echo '</ul>';
            } else {
                echo '<p>暂无上传记录</p>';
            }
            ?>
        </div>
    </div>

    <script>
        document.getElementById('apk').addEventListener('change', function(e) {
            var fileName = e.target.files[0] ? e.target.files[0].name : '未选择文件';
            document.getElementById('fileName').textContent = fileName;
        });
    </script>
</body>
</html>