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// Copyright (c) Authors of Clover
//
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Apache License, Version 2.0
// which accompanies this distribution, and is available at
// http://www.apache.org/licenses/LICENSE-2.0
package main
import (
"bufio"
"bytes"
"fmt"
"io/ioutil"
"net/http"
)
type httpparser string
func (p httpparser) Parse(session_key string,
is_req bool,
data []byte) ([]byte, map[string]string) {
map_val := make(map[string]string)
reader := bytes.NewReader(data)
buf := bufio.NewReader(reader)
if is_req == true {
req, err := http.ReadRequest(buf)
if err != nil {
fmt.Printf("Request error: ")
fmt.Println(err)
return nil, nil
} else if req == nil {
fmt.Println("request is nil")
return nil, nil
} else {
fmt.Printf("HTTP Request Method %s url %v proto %v\n",
req.Method, req.URL, req.Proto)
map_val["reqmethod"] = req.Method
map_val["requrl"] = fmt.Sprintf("%v", req.URL)
map_val["reqproto"] = fmt.Sprintf("%v", req.Proto)
if user_agent := req.UserAgent(); len(user_agent) > 0 {
map_val["useragent"] = user_agent
}
if len(req.Host) > 0 {
map_val["host"] = req.Host
}
header := req.Header
if req_id := header.Get("X-Request-Id"); len(req_id) > 0 {
map_val["requestid"] = req_id
}
if envoy_dec := header.Get("X-Envoy-Decorator-Operation"); len(envoy_dec) > 0 {
map_val["envoydecorator"] = envoy_dec
}
if trace_id := header.Get("X-B3-Traceid"); len(trace_id) > 0 {
map_val["traceid"] = trace_id
}
body, err := ioutil.ReadAll(req.Body)
if err != nil {
fmt.Printf("Error reading HTTP Request body %v\n", err.Error())
}
return body, map_val
}
} else {
// response
resp, err := http.ReadResponse(buf, nil)
if err != nil {
fmt.Printf("Response error: ")
fmt.Println(err)
return nil, nil
}
fmt.Printf("HTTP Response Status %v code %v Proto %v\n",
resp.Status, resp.StatusCode, resp.Proto)
map_val["respstatus"] = resp.Status
map_val["respstatuscode"] = fmt.Sprintf("%v", resp.StatusCode)
map_val["respproto"] = fmt.Sprintf("%v", resp.Proto)
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
fmt.Printf("Error reading HTTP Request body %v\n", err.Error())
}
return body, map_val
}
}
var Parser httpparser
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