lolly/internal/server/router.go
xfy 5d9ef8e611 refactor(server): extract static handler configuration
Extract duplicate static handler configuration logic from
registerStaticHandlersWithLocationEngine and registerStaticHandlers
into a new configureStaticHandler method.

- Create configureStaticHandler() to handle alias, cache, gzip,
  symlink, internal, expires, and autoIndex configuration
- Both registration functions now call the shared configuration method
- Registration logic remains separate (LocationEngine vs Router)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-08 18:10:52 +08:00

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package server
import (
"strings"
"time"
"rua.plus/lolly/internal/config"
"rua.plus/lolly/internal/handler"
"rua.plus/lolly/internal/loadbalance"
"rua.plus/lolly/internal/logging"
"rua.plus/lolly/internal/matcher"
"rua.plus/lolly/internal/proxy"
)
// createProxyForConfig 创建代理实例并配置健康检查。
// 返回创建的代理实例,如果创建失败则返回 nil。
func (s *Server) createProxyForConfig(proxyCfg *config.ProxyConfig) *proxy.Proxy {
// 转换目标
targets := make([]*loadbalance.Target, len(proxyCfg.Targets))
for j, t := range proxyCfg.Targets {
failTimeout := t.FailTimeout
if t.MaxFails > 0 && failTimeout == 0 {
failTimeout = 10 * time.Second
}
targets[j] = loadbalance.NewTargetFromConfig(
t.URL, t.Weight,
int64(t.MaxConns), int64(t.MaxFails), failTimeout,
t.Backup, t.Down, t.ProxyURI,
)
}
// 传递 Transport 配置和 Lua 引擎
p, err := proxy.NewProxy(proxyCfg, targets, &s.config.Performance.Transport, s.luaEngine)
if err != nil {
logging.Error().Msg("Failed to create proxy: " + err.Error())
return nil
}
// 设置 DNS 解析器(如果已配置)
if s.resolver != nil {
p.SetResolver(s.resolver)
if err := p.Start(); err != nil {
logging.Error().Err(err).Msg("Failed to start proxy")
}
}
// 启动健康检查
if proxyCfg.HealthCheck.Interval > 0 {
hc := proxy.NewHealthChecker(targets, &proxyCfg.HealthCheck)
hc.Start()
s.healthCheckers = append(s.healthCheckers, hc)
// 设置被动健康检查
p.SetHealthChecker(hc)
}
// 保存代理实例用于缓存统计
s.proxies = append(s.proxies, p)
return p
}
// registerProxyRoutesWithLocationEngine 使用 LocationEngine 注册代理路由。
//
// 根据配置为 LocationEngine 注册代理路径,创建代理处理器和健康检查器。
// 支持通过 LocationType 配置不同的匹配方式。
func (s *Server) registerProxyRoutesWithLocationEngine(serverCfg *config.ServerConfig) {
for i := range serverCfg.Proxy {
proxyCfg := &serverCfg.Proxy[i]
p := s.createProxyForConfig(proxyCfg)
if p == nil {
continue
}
// 根据 LocationType 注册路由
locType := proxyCfg.LocationType
if locType == "" {
locType = matcher.LocationTypePrefix
}
switch locType {
case matcher.LocationTypeExact:
_ = s.locationEngine.AddExact(proxyCfg.Path, p.ServeHTTP, proxyCfg.Internal)
case matcher.LocationTypePrefixPriority:
_ = s.locationEngine.AddPrefixPriority(proxyCfg.Path, p.ServeHTTP, proxyCfg.Internal)
case matcher.LocationTypeRegex, matcher.LocationTypeRegexCaseless:
caseInsensitive := locType == matcher.LocationTypeRegexCaseless
_ = s.locationEngine.AddRegex(proxyCfg.Path, p.ServeHTTP, caseInsensitive, proxyCfg.Internal)
case matcher.LocationTypeNamed:
if proxyCfg.LocationName != "" {
_ = s.locationEngine.AddNamed(proxyCfg.LocationName, p.ServeHTTP)
}
case matcher.LocationTypePrefix:
_ = s.locationEngine.AddPrefix(proxyCfg.Path, p.ServeHTTP, proxyCfg.Internal)
default:
_ = s.locationEngine.AddPrefix(proxyCfg.Path, p.ServeHTTP, proxyCfg.Internal)
}
}
}
// configureStaticHandler 配置静态文件处理器。
// 返回配置好的 StaticHandler由调用者执行路由注册。
func (s *Server) configureStaticHandler(static *config.StaticConfig, cfg *config.ServerConfig) *handler.StaticHandler {
path := static.Path
if path == "" {
path = "/"
}
staticHandler := handler.NewStaticHandler(
static.Root,
path,
static.Index,
true, // useSendfile
)
// 设置 alias与 root 互斥)
if static.Alias != "" {
staticHandler.SetAlias(static.Alias)
}
if s.fileCache != nil {
staticHandler.SetFileCache(s.fileCache)
// 设置默认缓存 TTL (5s)
staticHandler.SetCacheTTL(5 * time.Second)
}
if cfg.Compression.GzipStatic {
// extensions: 源文件类型,为空使用默认值
// GzipStaticExtensions: 预压缩文件扩展名(如 .br, .gz
staticHandler.SetGzipStatic(true, nil, cfg.Compression.GzipStaticExtensions)
}
// 设置符号链接安全检查
staticHandler.SetSymlinkCheck(static.SymlinkCheck)
// 设置 internal 限制
staticHandler.SetInternal(static.Internal)
// 设置缓存过期时间
if static.Expires != "" {
staticHandler.SetExpires(static.Expires)
}
// 设置目录列表
if static.AutoIndex {
staticHandler.SetAutoIndex(
static.AutoIndex,
static.AutoIndexFormat,
static.AutoIndexLocaltime,
static.AutoIndexExactSize,
)
}
return staticHandler
}
// registerStaticHandlersWithLocationEngine 使用 LocationEngine 注册静态文件处理器。
func (s *Server) registerStaticHandlersWithLocationEngine(cfg *config.ServerConfig) {
for _, static := range cfg.Static {
staticHandler := s.configureStaticHandler(&static, cfg)
path := static.Path
if path == "" {
path = "/"
}
// 根据 LocationType 注册路由
locType := static.LocationType
if locType == "" {
locType = matcher.LocationTypePrefix
}
switch locType {
case matcher.LocationTypeExact:
_ = s.locationEngine.AddExact(path, staticHandler.Handle, static.Internal)
case matcher.LocationTypePrefixPriority:
_ = s.locationEngine.AddPrefixPriority(path, staticHandler.Handle, static.Internal)
case matcher.LocationTypePrefix:
_ = s.locationEngine.AddPrefix(path, staticHandler.Handle, static.Internal)
default:
_ = s.locationEngine.AddPrefix(path, staticHandler.Handle, static.Internal)
}
}
}
// registerProxyRoutes 注册代理路由。
//
// 根据配置为路由器注册代理路径,创建代理处理器和健康检查器。
// 支持 GET、POST、PUT、DELETE、HEAD 等 HTTP 方法。
//
// 参数:
// - router: 路由器实例,用于注册路由规则
// - serverCfg: 服务器配置,包含代理目标、负载均衡、健康检查等设置
//
// 注意事项:
// - 代理目标初始状态默认为健康
// - 健康检查根据配置自动启动
func (s *Server) registerProxyRoutes(router *handler.Router, serverCfg *config.ServerConfig) {
for i := range serverCfg.Proxy {
proxyCfg := &serverCfg.Proxy[i]
p := s.createProxyForConfig(proxyCfg)
if p == nil {
continue
}
// 使用前缀匹配(通配符)注册代理路由
// path: / 匹配所有子路径如 /sorry/index
// path: /api/ 匹配 /api/* 所有子路径
routePath := proxyCfg.Path
// 确保通配符路由格式正确
if !strings.HasSuffix(routePath, "/") && routePath != "/" {
routePath += "/"
}
wildcardPath := routePath + "{path:*}"
router.GET(wildcardPath, p.ServeHTTP)
router.POST(wildcardPath, p.ServeHTTP)
router.PUT(wildcardPath, p.ServeHTTP)
router.DELETE(wildcardPath, p.ServeHTTP)
router.HEAD(wildcardPath, p.ServeHTTP)
}
}
// registerStaticHandlers 注册静态文件处理器。
//
// 为路由器注册静态文件服务,支持多个静态目录、文件缓存和预压缩文件。
//
// 参数:
// - router: 路由器实例,用于注册路由规则
// - cfg: 服务器配置,包含静态文件和压缩设置
func (s *Server) registerStaticHandlers(router *handler.Router, cfg *config.ServerConfig) {
for _, static := range cfg.Static {
staticHandler := s.configureStaticHandler(&static, cfg)
path := static.Path
if path == "" {
path = "/"
}
// 设置 try_files 配置
if len(static.TryFiles) > 0 {
// 注意tryFilesPass 需要路由器支持,当前实现传入 nil
// 如果 tryFilesPass 为 true需要额外处理
staticHandler.SetTryFiles(static.TryFiles, static.TryFilesPass, router)
}
// 注册路由:确保路径以 / 结尾
routePath := path
if !strings.HasSuffix(routePath, "/") {
routePath += "/"
}
router.GET(routePath+"{filepath:*}", staticHandler.Handle)
router.HEAD(routePath+"{filepath:*}", staticHandler.Handle)
}
}