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middlewares.go
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middlewares.go
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/*
* Copyright (c) 2017, MegaEase
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package api
import (
"fmt"
"net/http"
"runtime/debug"
"time"
"github.com/go-chi/chi/v5/middleware"
"github.com/megaease/easegress/pkg/logger"
)
func (m *dynamicMux) newAPILogger(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ww := middleware.NewWrapResponseWriter(w, r.ProtoMajor)
t1 := time.Now()
defer func() {
logger.APIAccess(r.Method, r.RemoteAddr, r.URL.Path, ww.Status(),
r.ContentLength, int64(ww.BytesWritten()),
t1, time.Since(t1))
}()
next.ServeHTTP(w, r)
})
}
func (m *dynamicMux) newRecoverer(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
defer func() {
if rvr := recover(); rvr != nil && rvr != http.ErrAbortHandler {
logger.Errorf("recover from %s, err: %v, stack trace:\n%s\n",
r.URL.Path, rvr, debug.Stack())
if ce, ok := rvr.(clusterErr); ok {
HandleAPIError(w, r, http.StatusServiceUnavailable, ce)
} else {
HandleAPIError(w, r, http.StatusInternalServerError, fmt.Errorf("%v", rvr))
}
}
}()
next.ServeHTTP(w, r)
})
}
func (m *dynamicMux) newConfigVersionAttacher(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// NOTE: It needs to add the header before the next handlers
// write the body to the network.
version := m.server._getVersion()
w.Header().Set(ConfigVersionKey, fmt.Sprintf("%d", version))
next.ServeHTTP(w, r)
})
}