mirror of
https://github.com/cubefs/cubefs.git
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61 lines
2.1 KiB
Go
61 lines
2.1 KiB
Go
// Copyright 2022 The CubeFS Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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// implied. See the License for the specific language governing
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// permissions and limitations under the License.
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package rpc
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import "net/http"
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// MiddlewareHandler middleware above rpc server default router.
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// Run sorted by progress handler order.
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func MiddlewareHandler(phs ...ProgressHandler) http.Handler {
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DefaultRouter.hasMiddleware = true
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phs = append(DefaultRouter.headMiddlewares, phs...)
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return buildHTTPHandler(DefaultRouter.ServeHTTP, phs...)
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}
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// MiddlewareHandlerFunc middleware func above rpc server default router.
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// Run sorted by progress handler order.
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func MiddlewareHandlerFunc(phs ...ProgressHandler) http.HandlerFunc {
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DefaultRouter.hasMiddleware = true
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phs = append(DefaultRouter.headMiddlewares, phs...)
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return buildHTTPHandler(DefaultRouter.ServeHTTP, phs...)
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}
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// MiddlewareHandlerWith middleware above rpc server router
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// Run sorted by progress handler order.
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func MiddlewareHandlerWith(r *Router, phs ...ProgressHandler) http.Handler {
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r.hasMiddleware = true
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phs = append(r.headMiddlewares, phs...)
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return buildHTTPHandler(r.ServeHTTP, phs...)
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}
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// MiddlewareHandlerFuncWith middleware func above rpc server router
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// Run sorted by progress handler order.
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func MiddlewareHandlerFuncWith(r *Router, phs ...ProgressHandler) http.HandlerFunc {
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r.hasMiddleware = true
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phs = append(r.headMiddlewares, phs...)
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return buildHTTPHandler(r.ServeHTTP, phs...)
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}
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func buildHTTPHandler(h http.HandlerFunc, phs ...ProgressHandler) http.HandlerFunc {
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if len(phs) == 0 {
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return h
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}
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last := len(phs) - 1
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return buildHTTPHandler(func(w http.ResponseWriter, req *http.Request) {
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phs[last].Handler(w, req, h)
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}, phs[:last]...)
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}
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