settings/bind: allow specifying bind/client timeouts

lib/settings/bind.go

@@ -14,6 +14,7 @@ import (
 	"os"
 	"strconv"
 	"sync/atomic"
+	"time"
 )
 
 type Bind struct {
@@ -31,6 +32,37 @@ type Bind struct {
 	TLSCertificate string `yaml:"tls-certificate"`
 	// TLSPrivateKey Alternate to TLSAcmeAutoCert
 	TLSPrivateKey string `yaml:"tls-key"`
+
+	// ReadTimeout is the maximum duration for reading the entire
+	// request, including the body. A zero or negative value means
+	// there will be no timeout.
+	//
+	// Because ReadTimeout does not let Handlers make per-request
+	// decisions on each request body's acceptable deadline or
+	// upload rate, most users will prefer to use
+	// ReadHeaderTimeout. It is valid to use them both.
+	ReadTimeout time.Duration `yaml:"read-timeout"`
+
+	// ReadHeaderTimeout is the amount of time allowed to read
+	// request headers. The connection's read deadline is reset
+	// after reading the headers and the Handler can decide what
+	// is considered too slow for the body. If zero, the value of
+	// ReadTimeout is used. If negative, or if zero and ReadTimeout
+	// is zero or negative, there is no timeout.
+	ReadHeaderTimeout time.Duration `yaml:"read-header-timeout"`
+
+	// WriteTimeout is the maximum duration before timing out
+	// writes of the response. It is reset whenever a new
+	// request's header is read. Like ReadTimeout, it does not
+	// let Handlers make decisions on a per-request basis.
+	// A zero or negative value means there will be no timeout.
+	WriteTimeout time.Duration `yaml:"write-timeout"`
+
+	// IdleTimeout is the maximum amount of time to wait for the
+	// next request when keep-alives are enabled. If zero, the value
+	// of ReadTimeout is used. If negative, or if zero and ReadTimeout
+	// is zero or negative, there is no timeout.
+	IdleTimeout time.Duration `yaml:"idle-timeout"`
 }
 
 func (b *Bind) Listener() (net.Listener, string) {
@@ -83,6 +115,11 @@ func (b *Bind) Server(backends map[string]http.Handler, acmeCachePath string) (*
 		}
 	}), tlsConfig)
 
+	server.ReadTimeout = b.ReadTimeout
+	server.ReadHeaderTimeout = b.ReadHeaderTimeout
+	server.WriteTimeout = b.WriteTimeout
+	server.IdleTimeout = b.IdleTimeout
+
 	swap := func(handler http.Handler) {
 		serverHandler.Store(&handler)
 	}