Add request_body middleware and some limits to HTTP servers

modules/caddyhttp/caddyhttp.go

@@ -110,6 +110,9 @@ func (app *App) Start() error {
 		s := &http.Server{
 			ReadTimeout:       time.Duration(srv.ReadTimeout),
 			ReadHeaderTimeout: time.Duration(srv.ReadHeaderTimeout),
+			WriteTimeout:      time.Duration(srv.WriteTimeout),
+			IdleTimeout:       time.Duration(srv.IdleTimeout),
+			MaxHeaderBytes:    srv.MaxHeaderBytes,
 			Handler:           srv,
 		}
 

modules/caddyhttp/requestbody/requestbody.go

@@ -0,0 +1,33 @@
+package requestbody
+
+import (
+	"net/http"
+
+	"bitbucket.org/lightcodelabs/caddy2"
+	"bitbucket.org/lightcodelabs/caddy2/modules/caddyhttp"
+)
+
+func init() {
+	caddy2.RegisterModule(caddy2.Module{
+		Name: "http.middleware.request_body",
+		New:  func() interface{} { return new(RequestBody) },
+	})
+}
+
+// RequestBody is a middleware for manipulating the request body.
+type RequestBody struct {
+	MaxSize int64 `json:"max_size,omitempty"`
+}
+
+func (rb RequestBody) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyhttp.Handler) error {
+	if r.Body == nil {
+		return next.ServeHTTP(w, r)
+	}
+	if rb.MaxSize > 0 {
+		r.Body = http.MaxBytesReader(w, r.Body, rb.MaxSize)
+	}
+	return next.ServeHTTP(w, r)
+}
+
+// Interface guard
+var _ caddyhttp.MiddlewareHandler = (*RequestBody)(nil)

modules/caddyhttp/rewrite/rewrite.go

@@ -1,4 +1,4 @@
-package headers
+package rewrite
 
 import (
 	"net/http"

modules/caddyhttp/server.go

@@ -17,6 +17,9 @@ type Server struct {
 	Listen                []string                    `json:"listen,omitempty"`
 	ReadTimeout           caddy2.Duration             `json:"read_timeout,omitempty"`
 	ReadHeaderTimeout     caddy2.Duration             `json:"read_header_timeout,omitempty"`
+	WriteTimeout          caddy2.Duration             `json:"write_timeout,omitempty"`
+	IdleTimeout           caddy2.Duration             `json:"idle_timeout,omitempty"`
+	MaxHeaderBytes        int                         `json:"max_header_bytes,omitempty"`
 	Routes                RouteList                   `json:"routes,omitempty"`
 	Errors                *httpErrorConfig            `json:"errors,omitempty"`
 	TLSConnPolicies       caddytls.ConnectionPolicies `json:"tls_connection_policies,omitempty"`