1 package autorest
2 3 // Copyright 2017 Microsoft Corporation
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 // http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 17 import (
18 "bytes"
19 "io"
20 "net/http"
21 )
22 23 // NewRetriableRequest returns a wrapper around an HTTP request that support retry logic.
24 func NewRetriableRequest(req *http.Request) *RetriableRequest {
25 return &RetriableRequest{req: req}
26 }
27 28 // Request returns the wrapped HTTP request.
29 func (rr *RetriableRequest) Request() *http.Request {
30 return rr.req
31 }
32 33 func (rr *RetriableRequest) prepareFromByteReader() (err error) {
34 // fall back to making a copy (only do this once)
35 b := []byte{}
36 if rr.req.ContentLength > 0 {
37 b = make([]byte, rr.req.ContentLength)
38 _, err = io.ReadFull(rr.req.Body, b)
39 if err != nil {
40 return err
41 }
42 } else {
43 b, err = io.ReadAll(rr.req.Body)
44 if err != nil {
45 return err
46 }
47 }
48 rr.br = bytes.NewReader(b)
49 rr.req.Body = io.NopCloser(rr.br)
50 return err
51 }
52