/
http.go
105 lines (87 loc) · 2.45 KB
/
http.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
package dorado
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"log"
"net/http"
"strings"
)
func decodeBody(resp *http.Response, out interface{}, logger *log.Logger) error {
defer resp.Body.Close()
jb, err := ioutil.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf("failed to read response body: %w", err)
}
r := &Result{
Data: out,
}
if err := json.Unmarshal(jb, r); err != nil {
logger.Printf("Dorado response: %v", string(jb))
return fmt.Errorf("failed to unmarshal response JSON: %w", err)
}
if r.Error.Error() != nil {
logger.Printf("Dorado return error: %v", r.Error.Error())
return r.Error.Error()
}
out = r.Data
return nil
}
func (e ErrorResp) Error() error {
switch e.Code {
case 0:
// no error
return nil
case ErrorCodeUnAuthorized, ErrorCodeUserIsOffline:
// please retry
return ErrUnAuthorized
}
return fmt.Errorf("Dorado Internal Error: %s (code: %d) Suggestion: %s", e.Description, e.Code, e.Suggestion)
}
// requestWithRetry do HTTP Request and retry if return UnAuthorized token.
// set false in retried when call from outer.
func (d *Device) requestWithRetry(req *http.Request, out interface{}, retryCount int) error {
resp, err := d.request(req)
if err != nil {
return fmt.Errorf("failed to request: %w", err)
}
err = decodeBody(resp, out, d.Logger)
if err == ErrUnAuthorized && retryCount > 0 {
// retry after refresh token
// need update iBaseToken and ismsession in Cookie
err = d.setToken()
if err != nil {
return fmt.Errorf("failed to setToken: %w", err)
}
spath := strings.TrimPrefix(req.URL.Path, d.URL.Path)
var jb []byte
if req.GetBody != nil {
b, err := req.GetBody()
if err != nil {
return fmt.Errorf("failed to GetBody: %w", err)
}
jb, err = ioutil.ReadAll(b) // NOTE(whywaita): need to fix many memory allocation if occurred problem
if err != nil {
return fmt.Errorf("failed to ReadAll: %w", err)
}
}
newReq, err := d.newRequest(req.Context(), req.Method, spath, bytes.NewBuffer(jb))
if err != nil {
return fmt.Errorf("failed to create new http request: %w", err)
}
return d.requestWithRetry(newReq, out, retryCount-1)
}
if err != nil {
return fmt.Errorf(ErrDecodeBody+": %w", err)
}
return nil
}
func (d *Device) request(req *http.Request) (*http.Response, error) {
d.Logger.Printf("Do Request %+v\n", req)
resp, err := d.HTTPClient.Do(req)
if err != nil {
return nil, fmt.Errorf(ErrHTTPRequestDo+": %w", err)
}
return resp, nil
}