forgejo/routers/common/middleware.go
wxiaoguang 5bf8d5445e
Refactor Router Logger (#17308)
Make router logger more friendly, show the related function name/file/line.

[BREAKING]
This PR substantially changes the logging format of the router logger. If you use this logging for monitoring e.g. fail2ban you will need to update this to match the new format.
2022-01-20 19:41:25 +08:00

84 lines
2.5 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package common
import (
"fmt"
"net/http"
"strings"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/web/routing"
"github.com/chi-middleware/proxy"
"github.com/go-chi/chi/v5/middleware"
)
// Middlewares returns common middlewares
func Middlewares() []func(http.Handler) http.Handler {
var handlers = []func(http.Handler) http.Handler{
func(next http.Handler) http.Handler {
return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
// First of all escape the URL RawPath to ensure that all routing is done using a correctly escaped URL
req.URL.RawPath = req.URL.EscapedPath()
ctx, _, finished := process.GetManager().AddContext(req.Context(), fmt.Sprintf("%s: %s", req.Method, req.RequestURI))
defer finished()
next.ServeHTTP(context.NewResponse(resp), req.WithContext(ctx))
})
},
}
if setting.ReverseProxyLimit > 0 {
opt := proxy.NewForwardedHeadersOptions().
WithForwardLimit(setting.ReverseProxyLimit).
ClearTrustedProxies()
for _, n := range setting.ReverseProxyTrustedProxies {
if !strings.Contains(n, "/") {
opt.AddTrustedProxy(n)
} else {
opt.AddTrustedNetwork(n)
}
}
handlers = append(handlers, proxy.ForwardedHeaders(opt))
}
handlers = append(handlers, middleware.StripSlashes)
if !setting.DisableRouterLog {
handlers = append(handlers, routing.NewLoggerHandler())
}
if setting.EnableAccessLog {
handlers = append(handlers, context.AccessLogger())
}
handlers = append(handlers, func(next http.Handler) http.Handler {
return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
// Why we need this? The Recovery() will try to render a beautiful
// error page for user, but the process can still panic again, and other
// middleware like session also may panic then we have to recover twice
// and send a simple error page that should not panic anymore.
defer func() {
if err := recover(); err != nil {
routing.UpdatePanicError(req.Context(), err)
combinedErr := fmt.Sprintf("PANIC: %v\n%s", err, log.Stack(2))
log.Error("%v", combinedErr)
if setting.IsProd {
http.Error(resp, http.StatusText(500), 500)
} else {
http.Error(resp, combinedErr, 500)
}
}
}()
next.ServeHTTP(resp, req)
})
})
return handlers
}