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https://github.com/infinite-iroha/touka.git
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init(v0.0.1)
This commit is contained in:
wjqserver
parent
aea609ce29
commit
484f2f016b
13 changed files with 2813 additions and 1 deletions
231
serve.go
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231
serve.go
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package touka
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import (
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"context"
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"crypto/tls"
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"errors"
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"fmt"
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"log"
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"net"
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"net/http"
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"os"
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"os/signal"
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"sync"
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"syscall"
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"time"
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)
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const defaultShutdownTimeout = 5 * time.Second // 定义默认的优雅关闭超时时间
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// resolveAddress 辅助函数，处理传入的地址参数。
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func resolveAddress(addr []string) string {
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switch len(addr) {
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case 0:
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return ":8080" // 默认端口
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case 1:
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return addr[0]
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default:
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panic("too many parameters for Run method") // 参数过多则报错
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}
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}
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// Run 启动 HTTP 服务器。
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// 接受一个可选的地址参数，如果未提供则默认为 ":8080"。
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func (engine *Engine) Run(addr ...string) (err error) {
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address := resolveAddress(addr) // 解析服务器地址
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log.Printf("Touka server listening on %s\n", address)
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err = http.ListenAndServe(address, engine) // 启动 HTTP 服务器
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return
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}
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// getShutdownTimeout 解析可选的超时参数，如果未提供或无效，则返回默认超时。
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func getShutdownTimeout(timeouts []time.Duration) time.Duration {
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var timeout time.Duration
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if len(timeouts) > 0 {
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timeout = timeouts[0]
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if timeout <= 0 {
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log.Printf("Warning: Provided shutdown timeout (%v) is non-positive. Using default timeout %v.\n", timeout, defaultShutdownTimeout)
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timeout = defaultShutdownTimeout
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}
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} else {
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timeout = defaultShutdownTimeout
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}
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return timeout
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}
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// handleGracefulShutdown 处理一个或多个 http.Server 实例的优雅关闭。
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// 它监听操作系统信号，并在指定超时时间内尝试关闭所有服务器。
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func handleGracefulShutdown(servers []*http.Server, timeout time.Duration) error {
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quit := make(chan os.Signal, 1)
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signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
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<-quit
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log.Println("Shutting down Touka server(s)...")
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ctx, cancel := context.WithTimeout(context.Background(), timeout)
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defer cancel()
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var wg sync.WaitGroup
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var errs []error
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var errsMutex sync.Mutex // 保护 errs 切片
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for _, srv := range servers {
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srv := srv // capture loop variable
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wg.Add(1)
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go func() {
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defer wg.Done()
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if err := srv.Shutdown(ctx); err != nil {
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errsMutex.Lock()
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if err == context.DeadlineExceeded {
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log.Printf("Server %s shutdown timed out after %v.\n", srv.Addr, timeout)
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errs = append(errs, fmt.Errorf("server %s shutdown timed out", srv.Addr))
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} else {
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log.Printf("Server %s forced to shutdown: %v\n", srv.Addr, err)
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errs = append(errs, fmt.Errorf("server %s forced to shutdown: %w", srv.Addr, err))
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}
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errsMutex.Unlock()
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}
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}()
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}
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wg.Wait() // 等待所有服务器的关闭 Goroutine 完成
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if len(errs) > 0 {
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return errors.Join(errs...) // 返回所有收集到的错误
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}
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log.Println("Touka server(s) exited gracefully.")
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return nil
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}
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// RunShutdown 启动 HTTP 服务器并支持优雅关闭。
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// 它监听操作系统信号 (SIGINT, SIGTERM)，并在指定超时时间内优雅地关闭服务器。
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// addr: 服务器监听的地址，例如 ":8080"。
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// timeouts: 可选的超时时间，如果未提供，则默认为 5 秒。
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func (engine *Engine) RunShutdown(addr string, timeouts ...time.Duration) error {
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timeout := getShutdownTimeout(timeouts)
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srv := &http.Server{
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Addr: addr,
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Handler: engine, // Engine 实现了 http.Handler 接口
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}
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// 启动服务器在单独的 Goroutine 中运行，以便主 Goroutine 可以监听信号
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go func() {
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log.Printf("Touka HTTP server listening on %s\n", addr)
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if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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log.Fatalf("Touka HTTP server listen error: %s\n", err)
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}
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}()
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return handleGracefulShutdown([]*http.Server{srv}, timeout)
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}
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// RunWithTLS 启动 HTTPS 服务器并支持优雅关闭。
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// 用户需自行创建并传入 *tls.Config 实例，以提供完整的 TLS 配置自由度。
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// addr: 服务器监听的地址，例如 ":8443"。
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// tlsConfig: 包含 TLS 证书、密钥及其他配置的 tls.Config 实例。
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// timeouts: 可选的超时时间，如果未提供，则默认为 5 秒。
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func (engine *Engine) RunWithTLS(addr string, tlsConfig *tls.Config, timeouts ...time.Duration) error {
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if tlsConfig == nil {
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return errors.New("tls.Config must not be nil for RunWithTLS")
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}
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timeout := getShutdownTimeout(timeouts)
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srv := &http.Server{
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Addr: addr,
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Handler: engine,
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TLSConfig: tlsConfig, // 使用用户传入的 tls.Config
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}
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if engine.useDefaultProtocols {
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//加入HTTP2支持
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engine.SetProtocols(&ProtocolsConfig{
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Http1: true,
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Http2: true, // 默认启用 HTTP/2
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Http2_Cleartext: false,
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})
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}
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go func() {
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log.Printf("Touka HTTPS server listening on %s\n", addr)
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if err := srv.ListenAndServeTLS("", ""); err != nil && err != http.ErrServerClosed {
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log.Fatalf("Touka HTTPS server listen error: %s\n", err)
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}
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}()
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return handleGracefulShutdown([]*http.Server{srv}, timeout)
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}
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// RunWithTLSRedir 启动 HTTP 和 HTTPS 服务器，并将所有 HTTP 请求重定向到 HTTPS。
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// httpAddr: HTTP 服务器监听的地址，例如 ":80"。
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// httpsAddr: HTTPS 服务器监听的地址，例如 ":443"。
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// tlsConfig: 包含 TLS 证书、密钥及其他配置的 tls.Config 实例，用于 HTTPS 服务器。
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// timeouts: 可选的超时时间，如果未提供，则默认为 5 秒。
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func (engine *Engine) RunWithTLSRedir(httpAddr, httpsAddr string, tlsConfig *tls.Config, timeouts ...time.Duration) error {
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if tlsConfig == nil {
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return errors.New("tls.Config must not be nil for RunWithTLSRedir")
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}
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timeout := getShutdownTimeout(timeouts)
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// HTTPS Server
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httpsSrv := &http.Server{
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Addr: httpsAddr,
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Handler: engine,
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TLSConfig: tlsConfig, // 使用用户传入的 tls.Config
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}
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if engine.useDefaultProtocols {
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//加入HTTP2支持
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engine.SetProtocols(&ProtocolsConfig{
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Http1: true,
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Http2: true, // 默认启用 HTTP/2
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Http2_Cleartext: false,
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})
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}
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// HTTP Server for redirection
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httpSrv := &http.Server{
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Addr: httpAddr,
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Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// 从 r.Host 提取 hostname，例如 "localhost:8080" -> "localhost"
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hostOnly, _, err := net.SplitHostPort(r.Host)
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if err != nil { // r.Host 可能没有端口，例如 "example.com"
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hostOnly = r.Host
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}
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// 从 httpsAddr 提取目标 HTTPS 端口，例如 ":443" -> "443"
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_, targetHttpsPort, err := net.SplitHostPort(httpsAddr)
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if err != nil { // httpsAddr 必须包含一个有效的端口
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log.Fatalf("Error: Invalid HTTPS address '%s' for redirection. Must specify a port (e.g., ':443').", httpsAddr)
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}
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var redirectHost string
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if targetHttpsPort == "443" {
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redirectHost = hostOnly // 如果是默认 HTTPS 端口，则无需在 URL 中显式指定端口
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} else {
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redirectHost = net.JoinHostPort(hostOnly, targetHttpsPort) // 否则，显式指定端口
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}
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// 构建目标 HTTPS URL
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targetURL := "https://" + redirectHost + r.URL.RequestURI()
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http.Redirect(w, r, targetURL, http.StatusMovedPermanently) // 301 Permanent Redirect
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}),
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}
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// Start HTTPS server
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go func() {
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log.Printf("Touka HTTPS server listening on %s\n", httpsAddr)
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if err := httpsSrv.ListenAndServeTLS("", ""); err != nil && err != http.ErrServerClosed { // 同样，传入空字符串
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log.Fatalf("Touka HTTPS server listen error: %s\n", err)
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}
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}()
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// Start HTTP redirect server
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go func() {
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log.Printf("Touka HTTP redirect server listening on %s\n", httpAddr)
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if err := httpSrv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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log.Fatalf("Touka HTTP redirect server listen error: %s\n", err)
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}
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}()
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return handleGracefulShutdown([]*http.Server{httpsSrv, httpSrv}, timeout)
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}
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