70 lines
2.0 KiB
PHP
70 lines
2.0 KiB
PHP
<?php
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namespace app\admin\controller;
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use app\admin\BaseController;
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use think\facade\Request;
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use think\Response;
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class StorageController extends BaseController
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{
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/**
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* 获取存储文件
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* 用于访问 /storage/ 路径下的静态文件
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* @param string $path 文件路径
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*/
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public function index($path = '')
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{
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// 如果没有传递路径参数，从pathinfo获取
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if (empty($path)) {
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$pathinfo = Request::pathinfo();
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$path = str_replace('storage/', '', $pathinfo);
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}
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// 防止路径遍历攻击
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$path = str_replace('..', '', $path);
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$path = ltrim($path, '/');
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// 构建文件完整路径
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$filePath = public_path() . 'storage/' . $path;
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// 检查文件是否存在
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if (!file_exists($filePath) || !is_file($filePath)) {
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return json([
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'code' => 404,
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'msg' => '文件不存在'
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]);
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}
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// 获取文件MIME类型
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$mimeType = mime_content_type($filePath);
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if (!$mimeType) {
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// 根据文件扩展名判断MIME类型
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$ext = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
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$mimeTypes = [
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'jpg' => 'image/jpeg',
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'jpeg' => 'image/jpeg',
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'png' => 'image/png',
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'gif' => 'image/gif',
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'webp' => 'image/webp',
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'mp4' => 'video/mp4',
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'mp3' => 'audio/mpeg',
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'pdf' => 'application/pdf',
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];
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$mimeType = $mimeTypes[$ext] ?? 'application/octet-stream';
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}
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// 读取文件内容
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$content = file_get_contents($filePath);
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// 返回文件响应
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return Response::create($content, 'file', 200)
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->header([
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'Content-Type' => $mimeType,
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'Content-Length' => filesize($filePath),
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'Cache-Control' => 'public, max-age=31536000',
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]);
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}
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}
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