288 lines
7.5 KiB
V
288 lines
7.5 KiB
V
module hono
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import net
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import net.http
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import picoev
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import picohttpparser
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// picoev 服务器配置
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pub struct PicoevConfig {
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pub:
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port int = 8080
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host string
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family net.AddrFamily = .ip6
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timeout_secs int = 8
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max_headers int = 100
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max_read int = 8192
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max_write int = 65536
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keepalive_timeout int = 5
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max_keepalive_req int = 1000
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}
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// picoev 请求上下文
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struct PicoevRequestContext {
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mut:
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app &Hono = unsafe { nil }
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config PicoevConfig
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}
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// 使用 picoev 启动服务器
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pub fn (mut app Hono) listen_picoev(port int) {
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app.listen_picoev_with_config(PicoevConfig{
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port: port
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})
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}
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// 使用 picoev 启动服务器（带配置）
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pub fn (mut app Hono) listen_picoev_with_config(config PicoevConfig) {
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mut ctx := &PicoevRequestContext{
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app: unsafe { &app }
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config: config
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}
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mut pico := picoev.new(
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port: config.port
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host: config.host
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family: config.family
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timeout_secs: config.timeout_secs
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max_headers: config.max_headers
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max_read: config.max_read
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max_write: config.max_write
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cb: picoev_callback
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user_data: ctx
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) or {
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eprintln('[v-hono] Failed to create picoev server: ${err}')
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return
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}
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host_str := if config.host == '' { '127.0.0.1' } else { config.host }
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println('[v-hono] Listening on http://${host_str}:${config.port}/ (picoev)')
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pico.serve()
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}
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// picoev 回调函数
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fn picoev_callback(user_data voidptr, req picohttpparser.Request, mut res picohttpparser.Response) {
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mut ctx := unsafe { &PicoevRequestContext(user_data) }
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if ctx.app == unsafe { nil } {
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res.http_500()
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res.end()
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return
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}
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path, query_map := parse_path_and_query(req.path)
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keepalive := check_keepalive_request(req)
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method_str := req.method
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// 优先使用快速路由器
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if ctx.app.use_fast_router {
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if route_match := ctx.app.fast_router.match_route(method_str, path) {
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mut hono_ctx := create_picoev_context(req, route_match.params, query_map)
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middlewares := get_middlewares_for_path_picoev(ctx.app, path)
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response := exec_middlewares_picoev(0, middlewares, mut hono_ctx, route_match.handler)
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send_picoev_response(mut res, hono_ctx, response, keepalive, ctx.config)
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return
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}
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}
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// 回退到混合路由器
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if route_match := ctx.app.context_hybrid_router.match_route(method_str, path) {
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mut hono_ctx := create_picoev_context(req, route_match.params, query_map)
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middlewares := get_middlewares_for_path_picoev(ctx.app, path)
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response := exec_middlewares_picoev(0, middlewares, mut hono_ctx, route_match.handler)
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send_picoev_response(mut res, hono_ctx, response, keepalive, ctx.config)
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return
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}
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// 404 Not Found
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mut hono_ctx := create_picoev_context(req, map[string]string{}, query_map)
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if handler := ctx.app.not_found_handler {
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response := handler(mut hono_ctx)
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send_picoev_response(mut res, hono_ctx, response, keepalive, ctx.config)
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return
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}
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// 默认 404 响应
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res.raw('HTTP/1.1 404 Not Found\r\n')
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res.header('Content-Type', 'text/plain')
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res.header('Content-Length', '9')
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if keepalive {
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res.header('Connection', 'keep-alive')
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res.header('Keep-Alive', 'timeout=${ctx.config.keepalive_timeout}, max=${ctx.config.max_keepalive_req}')
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} else {
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res.header('Connection', 'close')
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}
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res.body('Not Found')
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res.end()
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}
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// 检查客户端是否请求 Keep-Alive
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fn check_keepalive_request(req picohttpparser.Request) bool {
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for i in 0 .. req.num_headers {
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h := req.headers[i]
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if h.name.to_lower() == 'connection' {
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return h.value.to_lower().contains('keep-alive')
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}
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}
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return true // HTTP/1.1 默认 Keep-Alive
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}
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// 获取路径对应的所有中间件
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fn get_middlewares_for_path_picoev(app &Hono, path string) []ContextMiddleware {
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mut middlewares := app.context_middlewares.clone()
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mut prefixes := app.route_middlewares.keys()
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prefixes.sort(a.len < b.len)
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for prefix in prefixes {
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if path.starts_with(prefix) || prefix == '/' {
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if mws := app.route_middlewares[prefix] {
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middlewares << mws
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}
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}
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}
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return middlewares
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}
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// 执行中间件链
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fn exec_middlewares_picoev(idx int, middlewares []ContextMiddleware, mut ctx Context, handler IHandler) http.Response {
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if idx < middlewares.len {
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mw := middlewares[idx]
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return mw(mut ctx, fn [idx, middlewares, handler] (mut c Context) http.Response {
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return exec_middlewares_picoev(idx + 1, middlewares, mut c, handler)
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})
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}
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return handler.handle(mut ctx)
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}
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// 解析路径和查询参数
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fn parse_path_and_query(full_path string) (string, map[string]string) {
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mut query_map := map[string]string{}
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if idx := full_path.index('?') {
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path := full_path[..idx]
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query_str := full_path[idx + 1..]
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for part in query_str.split('&') {
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if eq_idx := part.index('=') {
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query_map[part[..eq_idx]] = part[eq_idx + 1..]
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}
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}
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return path, query_map
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}
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return full_path, query_map
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}
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// 创建 picoev 上下文
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fn create_picoev_context(req picohttpparser.Request, params map[string]string, query map[string]string) Context {
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return Context{
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req: convert_picoev_request(req)
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params: params
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query: query
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body: req.body
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url: req.path
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path: req.path
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status_code: 200
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headers: map[string]string{}
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}
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}
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// 转换 picoev 请求
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fn convert_picoev_request(req picohttpparser.Request) http.Request {
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mut headers := http.new_header()
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for i in 0 .. req.num_headers {
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h := req.headers[i]
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headers.add_custom(h.name, h.value) or { continue }
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}
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return http.Request{
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method: match req.method {
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'GET' { http.Method.get }
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'POST' { http.Method.post }
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'PUT' { http.Method.put }
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'DELETE' { http.Method.delete }
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'PATCH' { http.Method.patch }
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'HEAD' { http.Method.head }
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'OPTIONS' { http.Method.options }
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else { http.Method.get }
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}
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url: req.path
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data: req.body
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header: headers
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}
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}
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// 发送 picoev 响应
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fn send_picoev_response(mut res picohttpparser.Response, ctx Context, response http.Response, keepalive bool, config PicoevConfig) {
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status_code := if ctx.status_code != 0 { ctx.status_code } else { response.status_code }
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if status_code == 200 {
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res.http_ok()
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} else {
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res.raw('HTTP/1.1 ${status_code} ${get_status_text(status_code)}\r\n')
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}
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mut has_content_type := false
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mut has_connection := false
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for key, value in ctx.headers {
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// 跳过 Content-Length，picohttpparser 会在 body() 时自动添加
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if key.to_lower() == 'content-length' {
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continue
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}
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res.header(key, value)
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key_lower := key.to_lower()
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if key_lower == 'content-type' { has_content_type = true }
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if key_lower == 'connection' { has_connection = true }
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}
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if content_type := response.header.get(.content_type) {
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if !has_content_type {
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res.header('Content-Type', content_type)
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has_content_type = true
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}
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}
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if !has_content_type {
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res.header('Content-Type', 'text/plain; charset=utf-8')
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}
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if !has_connection {
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if keepalive {
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res.header('Connection', 'keep-alive')
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res.header('Keep-Alive', 'timeout=${config.keepalive_timeout}, max=${config.max_keepalive_req}')
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} else {
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res.header('Connection', 'close')
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}
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}
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res.body(response.body)
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res.end()
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}
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// 获取状态码文本
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fn get_status_text(code int) string {
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return match code {
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200 { 'OK' }
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201 { 'Created' }
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204 { 'No Content' }
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301 { 'Moved Permanently' }
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302 { 'Found' }
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304 { 'Not Modified' }
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400 { 'Bad Request' }
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401 { 'Unauthorized' }
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403 { 'Forbidden' }
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404 { 'Not Found' }
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405 { 'Method Not Allowed' }
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500 { 'Internal Server Error' }
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502 { 'Bad Gateway' }
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503 { 'Service Unavailable' }
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else { 'Unknown' }
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}
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}
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