54 lines
1.5 KiB
PHP
54 lines
1.5 KiB
PHP
<?php
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ob_start();
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require_once 'config.php';
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// 验证版本ID
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if (!isset($_GET['version_id']) || !is_numeric($_GET['version_id'])) {
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http_response_code(400);
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exit('无效的版本ID');
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}
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$versionId = $_GET['version_id'];
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// 获取版本信息
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$version = null;
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$getVersionSql = "SELECT * FROM app_versions WHERE id = ?";
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$stmt = $conn->prepare($getVersionSql);
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$stmt->bind_param("i", $versionId);
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$stmt->execute();
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$result = $stmt->get_result();
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if ($result->num_rows !== 1) {
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http_response_code(404);
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exit('版本不存在');
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}
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$version = $result->fetch_assoc();
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// 获取绝对文件路径
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$filePath = realpath(__DIR__ . '/' . $version['file_path']);
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// 验证文件存在性
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if (!$filePath || !file_exists($filePath)) {
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http_response_code(404);
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exit('文件不存在');
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}
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// 设置下载响应头
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$fileName = basename($filePath);
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$fileSize = filesize($filePath);
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// 清除输出缓冲区并发送 headers
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ob_end_clean();
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header('Content-Type: application/octet-stream');
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header('Content-Disposition: attachment; filename*=UTF-8\'\'' . rawurlencode($fileName));
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header('Content-Length: ' . $fileSize);
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header('Cache-Control: no-cache, must-revalidate');
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header('Expires: 0');
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header('Pragma: public');
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// 输出文件内容
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if (!readfile($filePath)) {
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http_response_code(500);
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exit('无法读取文件');
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}
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exit;
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?>
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