Resync oxy with original repository

vendor/github.com/vulcand/oxy/utils/dumpreq.go

@@ -0,0 +1,60 @@
+package utils
+
+import (
+	"crypto/tls"
+	"encoding/json"
+	"fmt"
+	"mime/multipart"
+	"net/http"
+	"net/url"
+)
+
+type SerializableHttpRequest struct {
+	Method           string
+	URL              *url.URL
+	Proto            string // "HTTP/1.0"
+	ProtoMajor       int    // 1
+	ProtoMinor       int    // 0
+	Header           http.Header
+	ContentLength    int64
+	TransferEncoding []string
+	Host             string
+	Form             url.Values
+	PostForm         url.Values
+	MultipartForm    *multipart.Form
+	Trailer          http.Header
+	RemoteAddr       string
+	RequestURI       string
+	TLS              *tls.ConnectionState
+}
+
+func Clone(r *http.Request) *SerializableHttpRequest {
+	if r == nil {
+		return nil
+	}
+
+	rc := new(SerializableHttpRequest)
+	rc.Method = r.Method
+	rc.URL = r.URL
+	rc.Proto = r.Proto
+	rc.ProtoMajor = r.ProtoMajor
+	rc.ProtoMinor = r.ProtoMinor
+	rc.Header = r.Header
+	rc.ContentLength = r.ContentLength
+	rc.Host = r.Host
+	rc.RemoteAddr = r.RemoteAddr
+	rc.RequestURI = r.RequestURI
+	return rc
+}
+
+func (s *SerializableHttpRequest) ToJson() string {
+	if jsonVal, err := json.Marshal(s); err != nil || jsonVal == nil {
+		return fmt.Sprintf("Error marshalling SerializableHttpRequest to json: %s", err.Error())
+	} else {
+		return string(jsonVal)
+	}
+}
+
+func DumpHttpRequest(req *http.Request) string {
+	return fmt.Sprintf("%v", Clone(req).ToJson())
+}