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package parsers
import (
"bufio"
"bytes"
"encoding/json"
"io/ioutil"
"moul.io/http2curl"
"net/http"
"strings"
)
type HttpRequestMetadata struct {
BasicMetadata
Method string `json:"method"`
URL string `json:"url"`
Protocol string `json:"protocol"`
Host string `json:"host"`
Headers map[string]string `json:"headers"`
Cookies map[string]string `json:"cookies" binding:"omitempty"`
ContentLength int64 `json:"content_length"`
FormData map[string]string `json:"form_data" binding:"omitempty"`
Body string `json:"body" binding:"omitempty"`
Trailer map[string]string `json:"trailer" binding:"omitempty"`
Reproducers HttpRequestMetadataReproducers `json:"reproducers"`
}
type HttpRequestMetadataReproducers struct {
CurlCommand string `json:"curl_command"`
RequestsCode string `json:"requests_code"`
FetchRequest string `json:"fetch_request"`
}
type HttpRequestParser struct {
}
func (p HttpRequestParser) TryParse(content []byte) Metadata {
reader := bufio.NewReader(bytes.NewReader(content))
request, err := http.ReadRequest(reader)
if err != nil {
return nil
}
var body string
if request.Body != nil {
if buffer, err := ioutil.ReadAll(request.Body); err == nil {
body = string(buffer)
}
_ = request.Body.Close()
}
_ = request.ParseForm()
return HttpRequestMetadata{
BasicMetadata: BasicMetadata{"http-request"},
Method: request.Method,
URL: request.URL.String(),
Protocol: request.Proto,
Host: request.Host,
Headers: JoinArrayMap(request.Header),
Cookies: CookiesMap(request.Cookies()),
ContentLength: request.ContentLength,
FormData: JoinArrayMap(request.Form),
Body: body,
Trailer: JoinArrayMap(request.Trailer),
Reproducers: HttpRequestMetadataReproducers{
CurlCommand: curlCommand(request),
RequestsCode: requestsCode(request),
FetchRequest: fetchRequest(request, body),
},
}
}
func curlCommand(request *http.Request) string {
if command, err := http2curl.GetCurlCommand(request); err == nil {
return command.String()
} else {
return "invalid-request"
}
}
func requestsCode(request *http.Request) string {
var b strings.Builder
var params string
if request.Form != nil {
params = toJson(JoinArrayMap(request.PostForm))
}
headers := toJson(JoinArrayMap(request.Header))
cookies := toJson(CookiesMap(request.Cookies()))
b.WriteString("import requests\n\nresponse = requests." + strings.ToLower(request.Method) + "(")
b.WriteString("\"" + request.URL.String() + "\"")
if params != "" {
b.WriteString(", data = " + params)
}
if headers != "" {
b.WriteString(", headers = " + headers)
}
if cookies != "" {
b.WriteString(", cookies = " + cookies)
}
b.WriteString(")\n")
b.WriteString(`
# print(response.url)
# print(response.text)
# print(response.content)
# print(response.json())
# print(response.raw)
# print(response.status_code)
# print(response.cookies)
# print(response.history)
`)
return b.String()
}
func fetchRequest(request *http.Request, body string) string {
headers := JoinArrayMap(request.Header)
data := make(map[string]interface{})
data["headers"] = headers
if referrer := request.Header.Get("referrer"); referrer != "" {
data["Referrer"] = referrer
}
// TODO: referrerPolicy
if body == "" {
data["body"] = nil
} else {
data["body"] = body
}
data["method"] = request.Method
// TODO: mode
if jsonData := toJson(data); jsonData != "" {
return "fetch(\"" + request.URL.String() + "\", " + jsonData + ");"
} else {
return "invalid-request"
}
}
func toJson(obj interface{}) string {
if buffer, err := json.MarshalIndent(obj, "", "\t"); err == nil {
return string(buffer)
} else {
return ""
}
}
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