import net.http import hono import os import json fn main() { // ===== 1. 应用初始化 ===== mut app := hono.Hono.new() // 创建分片上传管理器 mut upload_manager := hono.new_chunk_upload_manager(hono.ChunkUploadConfig{}) // ===== 2. 中间件配置 ===== // 日志中间件 app.use(fn (mut c hono.Context, next fn (mut hono.Context) http.Response) http.Response { println('[LOG] ${c.req.method} ${c.path}') return next(mut c) }) // 认证中间件 app.use(fn (mut c hono.Context, next fn (mut hono.Context) http.Response) http.Response { println("url path: ${c.path}") token := c.query['token'] if c.path != "/" && token == '' { c.status(401) return c.json('{"error": "Unauthorized", "message": "Token required"}') } return next(mut c) }) // ===== 3. 静态文件服务中间件 ===== // 默认静态文件服务（./public 目录） app.use(hono.serve_static_default()) // 资源文件服务（./static 目录） app.use(hono.serve_static_path('/assets', './static')) // 上传文件服务（./uploads 目录） options := hono.StaticOptions{ root: './uploads' path: '/files' index: 'index.html' dotfiles: false etag: true last_modified: true max_age: 3600 // 1小时缓存 headers: { 'X-Served-By': 'V-Hono' 'X-Static-Files': 'true' } } app.use(hono.serve_static(options)) // ===== 4. 分块上传功能 ===== // 分片上传接口 app.post('/upload/chunk', fn [mut upload_manager] (mut c hono.Context) http.Response { return upload_manager.handle_chunk_upload(mut c) }) // 查询上传状态接口 app.get('/upload/status', fn [mut upload_manager] (mut c hono.Context) http.Response { return upload_manager.get_upload_status(mut c) }) // 查询已上传分片接口 app.get('/upload/chunks', fn [mut upload_manager] (mut c hono.Context) http.Response { file_hash := c.query['file_hash'] or { c.status(400) return c.json('{"error": "Missing file_hash parameter"}') } upload_status := upload_manager.uploads[file_hash] or { // 如果内存中没有记录，检查是否有最终文件（已完成上传） final_path := './uploads/${file_hash.trim_space()}' if os.exists(final_path) { // 文件已存在，返回所有分片已上传 mut uploaded_chunks := []int{} uploaded_chunks << 0 // 假设只有一个分片 return c.json('{"uploaded_chunks": ' + json.encode(uploaded_chunks) + ', "total_chunks": 1, "completed": true}') } c.status(404) return c.json('{"error": "Upload not found"}') } // 检查是否所有分片都已上传（基于分片大小总和） chunk_dir := os.join_path(os.join_path('./uploads/chunks', file_hash.trim_space()), upload_status.chunk_size.str()) mut total_chunk_size := u64(0) mut chunk_count := 0 if os.exists(chunk_dir) { for i := 0; ; i++ { chunk_path := os.join_path(chunk_dir, 'chunk_${i}.part') if !os.exists(chunk_path) { break } chunk_info := os.stat(chunk_path) or { continue } total_chunk_size += chunk_info.size chunk_count++ } } is_completed := total_chunk_size >= u64(upload_status.file_size) return c.json('{"uploaded_chunks": ' + json.encode(upload_status.uploaded_chunks) + ', "total_chunks": $chunk_count, "completed": $is_completed}') }) // 检查分片是否存在接口（秒传功能） app.get('/upload/chunk_exists', fn [mut upload_manager] (mut c hono.Context) http.Response { file_hash := c.query['file_hash'] or { c.status(400) return c.json('{"error": "Missing file_hash parameter"}') } chunk_index := c.query['chunk_index'] or { c.status(400) return c.json('{"error": "Missing chunk_index parameter"}') } chunk_hash := c.query['chunk_hash'] or { c.status(400) return c.json('{"error": "Missing chunk_hash parameter"}') } file_size_str := c.query['file_size'] or { c.status(400) return c.json('{"error": "Missing file_size parameter"}') } file_size := file_size_str.int() // 新增 trunk_size 参数 trunk_size_str := c.query['trunk_size'] or { '' } mut chunk_size := upload_manager.config.chunk_size if trunk_size_str != '' { chunk_size = trunk_size_str.int() } else if upload_status := upload_manager.uploads[file_hash] { chunk_size = upload_status.chunk_size } chunk_path := os.join_path(os.join_path(os.join_path('./uploads/chunks', file_hash.trim_space()), chunk_size.str()), 'chunk_${chunk_index}.part') println('[DEBUG] Checking chunk: $chunk_path') println('[DEBUG] File hash: $file_hash') println('[DEBUG] Chunk index: $chunk_index') println('[DEBUG] Expected hash: $chunk_hash') // 清理无效的上传状态 upload_manager.cleanup_invalid_status() mut exists := os.exists(chunk_path) println('[DEBUG] File exists: $exists') // 计算是否所有分片都已上传 mut all_chunk_uploaded := false // 方案1：优先检查最终文件是否存在（新格式：filehash.filetype） uploads_dir := './uploads/files' if os.exists(uploads_dir) { // 从上传状态中获取文件扩展名 mut file_ext := '' if upload_status := upload_manager.uploads[file_hash] { file_ext = get_file_extension(upload_status.filename) } // 如果内存中没有记录，尝试从数据库获取 if file_ext == '' { if file_info := upload_manager.db.get_file_by_hash(file_hash) { file_ext = file_info.file_type } } // 构建最终文件名 final_filename := '${file_hash.trim_space()}${file_ext}' final_path := os.join_path(uploads_dir, final_filename) if os.exists(final_path) { println('[DEBUG] Found final file: $final_path') all_chunk_uploaded = true } } // 方案2：如果最终文件不存在，检查分片文件 if !all_chunk_uploaded { chunk_dir := os.join_path(os.join_path('./uploads/chunks', file_hash.trim_space()), chunk_size.str()) if os.exists(chunk_dir) { // 计算所有分片文件的大小总和 mut total_chunk_size := u64(0) mut chunk_count := 0 // 遍历所有分片文件 for i := 0; ; i++ { chunk_file_path := '${chunk_dir}/chunk_${i}.part' if !os.exists(chunk_file_path) { break } // 获取分片文件大小 chunk_info := os.stat(chunk_file_path) or { break } total_chunk_size += chunk_info.size chunk_count++ } // 使用传入的文件大小 expected_file_size := u64(file_size) println('[DEBUG] Total chunk size: $total_chunk_size, Expected file size: $expected_file_size, Chunk count: $chunk_count') // 计算理论上需要的分片数量 expected_chunks := (expected_file_size + u64(chunk_size) - 1) / u64(chunk_size) println('[DEBUG] Expected chunks: $expected_chunks') // 只有当分片数量达到预期且总大小 >= 文件大小时，才认为上传完成 if chunk_count >= int(expected_chunks) && total_chunk_size >= expected_file_size { all_chunk_uploaded = true println('[DEBUG] All chunks uploaded: chunk_count=$chunk_count >= expected_chunks=$expected_chunks && total_size=$total_chunk_size >= file_size=$expected_file_size') } else { println('[DEBUG] Not all chunks uploaded: chunk_count=$chunk_count < expected_chunks=$expected_chunks || total_size=$total_chunk_size < file_size=$expected_file_size') } } } println('[DEBUG] All chunk uploaded: $all_chunk_uploaded') // chunk_exists 接口不应该自动触发合并，只返回状态信息 // 合并操作应该在 /upload/chunk 接口中处理 // 只检查文件是否存在，不验证 hash（因为前后端 hash 算法可能不一致） // 如果需要严格验证，可以在这里添加 hash 检查逻辑 return c.json('{"exists": $exists, "all_chunk_uploaded": $all_chunk_uploaded}') }) // 获取所有文件信息 app.get('/api/files', fn [mut upload_manager] (mut c hono.Context) http.Response { files := upload_manager.db.get_all_files() or { c.status(500) return c.json('{"error": "Failed to get files", "message": "$err"}') } return c.json(json.encode(files)) }) // 根据文件UUID获取文件信息 app.get('/api/files/:uuid', fn [mut upload_manager] (mut c hono.Context) http.Response { file_uuid := c.params['uuid'] or { c.status(400) return c.json('{"error": "Missing file UUID"}') } file_info := upload_manager.db.get_file_by_uuid(file_uuid) or { c.status(404) return c.json('{"error": "File not found"}') } return c.json(json.encode(file_info)) }) // 根据文件hash获取文件信息 app.get('/api/files/hash/:hash', fn [mut upload_manager] (mut c hono.Context) http.Response { file_hash := c.params['hash'] or { c.status(400) return c.json('{"error": "Missing file hash"}') } file_info := upload_manager.db.get_file_by_hash(file_hash) or { c.status(404) return c.json('{"error": "File not found"}') } return c.json(json.encode(file_info)) }) // 删除文件信息 app.delete('/api/files/:uuid', fn [mut upload_manager] (mut c hono.Context) http.Response { file_uuid := c.params['uuid'] or { c.status(400) return c.json('{"error": "Missing file UUID"}') } upload_manager.db.delete_file(file_uuid) or { c.status(500) return c.json('{"error": "Failed to delete file", "message": "$err"}') } return c.json('{"success": true, "message": "File deleted successfully"}') }) // 获取上传配置信息 app.get('/api/upload-config', fn [mut upload_manager] (mut c hono.Context) http.Response { config := { 'chunk_size': upload_manager.config.chunk_size.str() 'max_file_size': upload_manager.config.max_file_size.str() 'max_chunk_size': upload_manager.config.max_chunk_size.str() 'temp_dir': upload_manager.config.temp_dir 'upload_dir': upload_manager.config.upload_dir 'cleanup_delay': upload_manager.config.cleanup_delay.str() 'clear_chunks_on_complete': upload_manager.config.clear_chunks_on_complete.str() } return c.json(json.encode(config)) }) // ===== 5. 基础路由 ===== // 根路径 - 欢迎页面 app.get('/', fn (mut c hono.Context) http.Response { html_content := ' V-Hono 完整示例

🚀 V-Hono 完整示例

A lightweight web framework for V with static file serving and chunk upload

📁 静态文件服务

默认目录: / → ./public
资源目录: /assets → ./static
文件目录: /files → ./uploads

测试文件:

🔧 API 端点

健康检查: /api/health
静态文件状态: /api/status
静态文件信息: /api/static-info
基础路由: /hello

📄 文件服务端点

基本文件服务: /file/test.txt
缓存文件服务: /file-cached/test.txt
文件下载: /download/downloadable.txt
图片文件服务: /image/style.css
安全文件服务: /safe-file/test.txt

🎯 动态路由示例

单参数: /users/123
多参数: /posts/456/comments/789
嵌套参数: /api/users/101/posts/202

📤 分块上传功能

分片上传: POST /upload/chunk
上传状态: GET /upload/status
分片查询: GET /upload/chunks
分片检查: GET /upload/chunk_exists
文件管理: GET /api/files

特性:

✨ 特性

🧪 测试命令

# 静态文件测试
curl http://localhost:8080/test.txt
curl http://localhost:8080/assets/style.css
curl http://localhost:8080/files/sample.json

# 文件服务测试
curl http://localhost:8080/file/test.txt
curl http://localhost:8080/file-cached/test.txt
curl http://localhost:8080/download/downloadable.txt
curl http://localhost:8080/image/style.css
curl http://localhost:8080/safe-file/test.txt

# API 测试
curl http://localhost:8080/api/health
curl http://localhost:8080/api/status
curl http://localhost:8080/hello

# 动态路由测试
curl http://localhost:8080/users/123
curl http://localhost:8080/posts/456/comments/789

# 分块上传测试
curl -X POST http://localhost:8080/upload/chunk -F "file_hash=test123" -F "chunk_index=0" -F "chunk=@test.txt"
curl http://localhost:8080/upload/status?file_hash=test123
curl http://localhost:8080/api/files

# POST 测试
curl -X POST http://localhost:8080/api/users -d "{\\"name\\":\\"John\\"}"
curl -X POST "http://localhost:8080/api/test/create/456?token=abc123" -d "{\\"name\\":\\"Test\\"}"
' return c.html(html_content) }) // 基础路由 app.get('/hello', fn (mut c hono.Context) http.Response { return c.text('Hello, World!') }) // Path 信息展示路由 app.get('/path-info', fn (mut c hono.Context) http.Response { // 构建JSON响应 mut response := '{' response += '"path_info": {' response += '"path": "${c.path}",' response += '"url": "${c.url}"' response += '}' response += '}' return c.json(response) }) // ===== 6. API 路由 ===== // 健康检查 app.get('/api/health', fn (mut c hono.Context) http.Response { c.status(200) return c.json('{"status": "ok", "message": "Health check passed"}') }) // 静态文件服务状态 app.get('/api/status', fn (mut c hono.Context) http.Response { return c.json('{"status": "ok", "static_files": "enabled"}') }) // 静态文件服务信息 app.get('/api/static-info', fn (mut c hono.Context) http.Response { return c.json('{ "static_directories": [ {"path": "/", "root": "./public"}, {"path": "/assets", "root": "./static"}, {"path": "/files", "root": "./uploads"} ], "features": [ "Path traversal protection", "Auto index files", "ETag support", "Last-Modified headers", "Configurable caching", "Custom headers", "Chunk upload support" ] }') }) // ===== 7. 动态路由 ===== // 单参数路由 app.get('/users/:id', fn (mut c hono.Context) http.Response { user_id := c.params['id'] return c.json('{"user_id": "${user_id}", "name": "John Doe"}') }) // 多参数路由 app.get('/posts/:id/comments/:comment_id', fn (mut c hono.Context) http.Response { post_id := c.params['id'] comment_id := c.params['comment_id'] return c.json('{"post_id": "${post_id}", "comment_id": "${comment_id}", "content": "Great post!"}') }) // 嵌套参数路由 app.get('/api/users/:user_id/posts/:post_id', fn (mut c hono.Context) http.Response { user_id := c.params['user_id'] post_id := c.params['post_id'] return c.json('{"user_id": "${user_id}", "post_id": "${post_id}", "title": "Sample Post"}') }) // 路径分析路由 app.get('/analyze/*path', fn (mut c hono.Context) http.Response { requested_path := c.params['path'] // 构建JSON响应 mut response := '{' response += '"path_analysis": {' response += '"original_path": "${c.path}",' response += '"requested_path": "${requested_path}"' response += '}' response += '}' return c.json(response) }) // ===== 8. HTTP 方法示例 ===== // POST 请求 app.post('/api/users', fn (mut c hono.Context) http.Response { println('=== POST 请求信息 ===') println('请求体: ${c.body}') println('查询参数: ${c.query}') c.status(201) return c.json('{"message": "User created", "data": "${c.body}"}') }) // 带参数的 POST 请求 app.post('/api/users/:id', fn (mut c hono.Context) http.Response { user_id := c.params['id'] println('=== 带参数的 POST 请求信息 ===') println('用户ID: ${user_id}') println('请求体: ${c.body}') println('查询参数: ${c.query}') c.status(200) return c.json('{"message": "User updated", "user_id": "${user_id}", "data": "${c.body}"}') }) // 复杂的 POST 请求 app.post('/api/test/:action/:id', fn (mut c hono.Context) http.Response { action := c.params['action'] id := c.params['id'] println('=== 复杂 POST 请求信息 ===') println('动作: ${action}') println('ID: ${id}') println('查询参数: ${c.query}') println('请求体: ${c.body}') // 构建响应JSON mut response := '{' response += '"message": "复杂测试",' response += '"params": {' response += '"action": "${action}",' response += '"id": "${id}"' response += '},' response += '"query": {' // 添加查询参数 mut query_count := 0 for key, value in c.query { if query_count > 0 { response += ',' } response += '"${key}": "${value}"' query_count++ } response += '},' response += '"body": "${c.body}"' response += '}' c.status(200) return c.json(response) }) // PUT 请求示例 app.put('/api/users/:id', fn (mut c hono.Context) http.Response { user_id := c.params['id'] c.status(200) return c.json('{"message": "User replaced", "user_id": "${user_id}", "data": "${c.body}"}') }) // DELETE 请求示例 app.delete('/api/users/:id', fn (mut c hono.Context) http.Response { _ := c.params['id'] // 忽略用户ID c.status(204) return c.text('') }) // PATCH 请求示例 app.patch('/api/users/:id', fn (mut c hono.Context) http.Response { user_id := c.params['id'] c.status(200) return c.json('{"message": "User partially updated", "user_id": "${user_id}", "data": "${c.body}"}') }) // HEAD 请求示例 app.head('/api/users/:id', fn (mut c hono.Context) http.Response { user_id := c.params['id'] c.headers['X-User-ID'] = user_id c.status(200) return c.text('') }) // OPTIONS 请求示例 app.options('/api/users/:id', fn (mut c hono.Context) http.Response { c.headers['Allow'] = 'GET, POST, PUT, DELETE, PATCH, HEAD, OPTIONS' c.headers['Access-Control-Allow-Origin'] = '*' c.headers['Access-Control-Allow-Methods'] = 'GET, POST, PUT, DELETE, PATCH, HEAD, OPTIONS' c.status(200) return c.text('') }) // ===== 9. 文件服务功能 ===== // 基本文件服务示例 app.get('/file/:filename', fn (mut c hono.Context) http.Response { filename := c.params['filename'] file_path := 'public/${filename}' return c.file(file_path) }) // 带选项的文件服务示例 app.get('/file-cached/:filename', fn (mut c hono.Context) http.Response { filename := c.params['filename'] file_path := 'public/${filename}' options := hono.FileOptions{ max_age: 3600 // 缓存1小时 headers: { 'X-Served-By': 'v-hono' } } return c.file_with_options(file_path, options) }) // 自定义Content-Type的文件服务 app.get('/download/:filename', fn (mut c hono.Context) http.Response { filename := c.params['filename'] file_path := 'uploads/${filename}' options := hono.FileOptions{ content_type: 'application/octet-stream' headers: { 'Content-Disposition': 'attachment; filename="${filename}"' } } return c.file_with_options(file_path, options) }) // 图片文件服务示例 app.get('/image/:filename', fn (mut c hono.Context) http.Response { filename := c.params['filename'] file_path := 'static/${filename}' options := hono.FileOptions{ max_age: 86400 // 缓存24小时 headers: { 'X-Image-Type': 'static' } } return c.file_with_options(file_path, options) }) // 禁用缓存的文件服务 app.get('/dynamic/:filename', fn (mut c hono.Context) http.Response { filename := c.params['filename'] file_path := 'dynamic/${filename}' options := hono.FileOptions{ no_cache: true headers: { 'X-Dynamic': 'true' } } return c.file_with_options(file_path, options) }) // ===== 10. 错误处理示例 ===== // 安全文件服务 app.get('/safe-file/:filename', fn (mut c hono.Context) http.Response { filename := c.params['filename'] // 安全检查：只允许访问特定目录 if filename.contains('..') || filename.starts_with('/') { c.status(403) return c.text('Access denied') } file_path := 'public/${filename}' return c.file(file_path) }) // 404 错误处理 app.get('/**', fn (mut c hono.Context) http.Response { c.status(404) return c.json('{"error": "Not Found", "message": "The requested resource was not found"}') }) // ===== 11. 服务器启动 ===== println('🚀 V-Hono 完整示例启动中...') println('📍 服务器地址: http://localhost:8080') println('') println('📁 静态文件服务:') println(' - 默认: ./public (访问路径: /)') println(' - 资源: ./static (访问路径: /assets)') println(' - 文件: ./uploads (访问路径: /files)') println('') println('🔧 API 端点:') println(' - GET /api/health') println(' - GET /api/status') println(' - GET /api/static-info') println(' - GET /hello') println(' - GET /path-info') println(' - GET /analyze/*path') println('') println('📄 文件服务端点:') println(' - GET /file/:filename - 基本文件服务') println(' - GET /file-cached/:filename - 缓存文件服务') println(' - GET /download/:filename - 文件下载') println(' - GET /image/:filename - 图片文件服务') println(' - GET /dynamic/:filename - 动态文件服务') println(' - GET /safe-file/:filename - 安全文件服务') println('') println('📤 分块上传端点:') println(' - POST /upload/chunk - 分片上传') println(' - GET /upload/status - 上传状态') println(' - GET /upload/chunks - 分片查询') println(' - GET /upload/chunk_exists - 分片检查') println(' - GET /api/files - 文件管理') println('') println('🎯 动态路由:') println(' - GET /users/123') println(' - GET /posts/456/comments/789') println(' - GET /api/users/101/posts/202') println('') println('📝 HTTP 方法示例:') println(' - POST /api/users') println(' - POST /api/users/123') println(' - POST /api/test/create/456') println(' - PUT /api/users/123') println(' - DELETE /api/users/123') println(' - PATCH /api/users/123') println(' - HEAD /api/users/123') println(' - OPTIONS /api/users/123') println('') println('🧪 测试命令示例:') println(' # 静态文件测试') println(' curl http://localhost:8080/test.txt') println(' curl http://localhost:8080/assets/style.css') println(' curl http://localhost:8080/files/sample.json') println('') println(' # 文件服务测试') println(' curl http://localhost:8080/file/test.txt') println(' curl http://localhost:8080/file-cached/test.txt') println(' curl http://localhost:8080/download/downloadable.txt') println(' curl http://localhost:8080/image/style.css') println(' curl http://localhost:8080/safe-file/test.txt') println('') println(' # API 测试') println(' curl http://localhost:8080/api/health') println(' curl http://localhost:8080/api/status') println(' curl http://localhost:8080/hello') println('') println(' # 动态路由测试') println(' curl http://localhost:8080/users/123') println(' curl http://localhost:8080/posts/456/comments/789') println('') println(' # 分块上传测试') println(' curl -X POST http://localhost:8080/upload/chunk -F "file_hash=test123" -F "chunk_index=0" -F "chunk=@test.txt"') println(' curl http://localhost:8080/upload/status?file_hash=test123') println(' curl http://localhost:8080/api/files') println('') println(' # POST 测试') println(' curl -X POST http://localhost:8080/api/users -d "{\\"name\\":\\"John\\"}"') println(' curl -X POST "http://localhost:8080/api/test/create/456?token=abc123" -d "{\\"name\\":\\"Test\\"}"') app.listen(':8080') } // 获取文件扩展名 fn get_file_extension(filename string) string { println('[DEBUG] Getting extension for filename: "$filename"') parts := filename.split('.') println('[DEBUG] Split parts: $parts') if parts.len > 1 { ext := '.${parts.last()}' println('[DEBUG] Extracted extension: "$ext"') return ext } println('[DEBUG] No extension found, returning empty string') return '' }