77 lines
2.2 KiB
Go
77 lines
2.2 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package common
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import (
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"fmt"
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"net/http"
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"strings"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"github.com/chi-middleware/proxy"
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"github.com/go-chi/chi/middleware"
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)
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// Middlewares returns common middlewares
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func Middlewares() []func(http.Handler) http.Handler {
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var handlers = []func(http.Handler) http.Handler{
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func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
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next.ServeHTTP(context.NewResponse(resp), req)
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})
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},
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}
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if setting.ReverseProxyLimit > 0 {
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opt := proxy.NewForwardedHeadersOptions().
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WithForwardLimit(setting.ReverseProxyLimit).
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ClearTrustedProxies()
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for _, n := range setting.ReverseProxyTrustedProxies {
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if !strings.Contains(n, "/") {
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opt.AddTrustedProxy(n)
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} else {
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opt.AddTrustedNetwork(n)
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}
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}
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handlers = append(handlers, proxy.ForwardedHeaders(opt))
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}
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handlers = append(handlers, middleware.StripSlashes)
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if !setting.DisableRouterLog && setting.RouterLogLevel != log.NONE {
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if log.GetLogger("router").GetLevel() <= setting.RouterLogLevel {
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handlers = append(handlers, LoggerHandler(setting.RouterLogLevel))
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}
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}
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if setting.EnableAccessLog {
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handlers = append(handlers, context.AccessLogger())
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}
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handlers = append(handlers, func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
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// Why we need this? The Recovery() will try to render a beautiful
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// error page for user, but the process can still panic again, and other
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// middleware like session also may panic then we have to recover twice
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// and send a simple error page that should not panic any more.
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defer func() {
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if err := recover(); err != nil {
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combinedErr := fmt.Sprintf("PANIC: %v\n%s", err, string(log.Stack(2)))
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log.Error("%v", combinedErr)
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if setting.IsProd() {
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http.Error(resp, http.StatusText(500), 500)
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} else {
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http.Error(resp, combinedErr, 500)
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}
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}
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}()
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next.ServeHTTP(resp, req)
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})
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})
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return handlers
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}
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