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README.md documented access_control_allow_origin, upstream_fetch_timeout, upstream_max_response_size and downstream_timeout, but pixa did not know them, so a config following the README aborted startup. Each is now a setting with its PIXA_ variable, defaulting to the value that was fixed in the code: *, 30s, 50 MiB and 60s. Durations are Go duration strings and must be positive; the size is whole bytes, at most 1 GiB. The origin is * or one http or https origin written exactly as a browser sends it; anything else aborts startup. downstream_timeout sets both the server's write timeout and the per-request timeout. The owner approved the edits to existing tests. Model: opus-5-5
60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
package server
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import (
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"errors"
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"fmt"
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"net/http"
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"time"
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)
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// HTTP server configuration constants.
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const (
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HTTPReadTimeout = 30 * time.Second
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// HTTPReadHeaderTimeout bounds the request-header read on its own,
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// short, so a slowloris client dribbling headers is dropped well
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// before it ties up a connection for the whole ReadTimeout window.
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HTTPReadHeaderTimeout = 10 * time.Second
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// HTTPIdleTimeout bounds how long an idle keep-alive connection is
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// held open, so idle connections cannot accumulate without limit on a
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// service targeting high concurrency.
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HTTPIdleTimeout = 120 * time.Second
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HTTPMaxHeaderBytes = 8 << 10 // 8KB
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)
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// newHTTPServer builds the http.Server with the hardening timeouts and
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// limits applied. It is separate from serveUntilShutdown so the
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// configuration can be asserted in a test without binding a listener.
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func (s *Server) newHTTPServer() *http.Server {
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return &http.Server{
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Addr: fmt.Sprintf(":%d", s.config.Port),
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ReadTimeout: HTTPReadTimeout,
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ReadHeaderTimeout: HTTPReadHeaderTimeout,
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WriteTimeout: s.config.DownstreamTimeout,
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IdleTimeout: HTTPIdleTimeout,
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MaxHeaderBytes: HTTPMaxHeaderBytes,
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Handler: s,
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}
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}
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func (s *Server) serveUntilShutdown() {
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s.httpServer = s.newHTTPServer()
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s.SetupRoutes()
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s.log.Info("http begin listen", "listenaddr", s.httpServer.Addr)
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err := s.httpServer.ListenAndServe()
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if err != nil && !errors.Is(err, http.ErrServerClosed) {
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s.log.Error("listen error", "error", err)
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if s.cancelFunc != nil {
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s.cancelFunc()
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}
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}
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}
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// ServeHTTP implements http.Handler.
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func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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s.router.ServeHTTP(w, r)
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}
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