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remote.go
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remote.go
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/*
* Copyright (c) 2017, The Easegress Authors
* 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 main is the entry point of the simple Easegress remote server.
package main
import (
"bytes"
"encoding/json"
"io"
"net/http"
)
type (
contextEntity struct {
Request requestEntity `json:"request"`
Response responseEntity `json:"response"`
}
requestEntity struct {
RealIP string `json:"realIP"`
Method string `json:"method"`
Scheme string `json:"scheme"`
Host string `json:"host"`
Path string `json:"path"`
Query string `json:"query"`
Fragment string `json:"fragment"`
Proto string `json:"proto"`
Header http.Header `json:"header"`
Body []byte `json:"body"`
}
responseEntity struct {
StatusCode int `json:"statusCode"`
Header http.Header `json:"header"`
Body []byte `json:"body"`
}
)
func main() {
largeBodySize := 64 * 1024
largeBody := bytes.Repeat([]byte(`-`), largeBodySize)
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
defer r.Body.Close()
body, err := io.ReadAll(r.Body)
if err != nil {
w.WriteHeader(http.StatusBadRequest)
return
}
ctxEntity := &contextEntity{}
err = json.Unmarshal(body, ctxEntity)
if err != nil {
w.WriteHeader(http.StatusBadRequest)
return
}
ctxEntity.Response.StatusCode = 200
ctxEntity.Response.Header.Add("X-Remote-Name", "G.O.O.D")
ctxEntity.Response.Body = largeBody
buff, err := json.Marshal(ctxEntity)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusOK)
w.Write(buff)
})
http.ListenAndServe(":10000", nil)
}