Init 1.0 codes

download.php

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