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
|
package http3
import (
"errors"
"fmt"
"github.com/quic-go/quic-go"
)
// Error is returned from the round tripper (for HTTP clients)
// and inside the HTTP handler (for HTTP servers) if an HTTP/3 error occurs.
// See section 8 of RFC 9114.
type Error struct {
Remote bool
ErrorCode ErrCode
ErrorMessage string
}
var _ error = &Error{}
func (e *Error) Error() string {
s := e.ErrorCode.string()
if s == "" {
s = fmt.Sprintf("H3 error (%#x)", uint64(e.ErrorCode))
}
// Usually errors are remote. Only make it explicit for local errors.
if !e.Remote {
s += " (local)"
}
if e.ErrorMessage != "" {
s += ": " + e.ErrorMessage
}
return s
}
func (e *Error) Is(target error) bool {
t, ok := target.(*Error)
return ok && e.ErrorCode == t.ErrorCode && e.Remote == t.Remote
}
func maybeReplaceError(err error) error {
if err == nil {
return nil
}
var (
e Error
strErr *quic.StreamError
appErr *quic.ApplicationError
)
switch {
default:
return err
case errors.As(err, &strErr):
e.Remote = strErr.Remote
e.ErrorCode = ErrCode(strErr.ErrorCode)
case errors.As(err, &appErr):
e.Remote = appErr.Remote
e.ErrorCode = ErrCode(appErr.ErrorCode)
e.ErrorMessage = appErr.ErrorMessage
}
return &e
}
|
