-
Notifications
You must be signed in to change notification settings - Fork 15
/
url.go
52 lines (47 loc) · 1.25 KB
/
url.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
// Copyright 2016 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
"net/url"
"github.com/flatcar/ignition/config/shared/errors"
"github.com/vincent-petithory/dataurl"
)
func validateURL(s string) error {
// Empty url is valid, indicates an empty file
if s == "" {
return nil
}
u, err := url.Parse(s)
if err != nil {
return errors.ErrInvalidUrl
}
switch u.Scheme {
case "http", "https", "oem", "tftp":
return nil
case "s3":
if v, ok := u.Query()["versionId"]; ok {
if len(v) == 0 || v[0] == "" {
return errors.ErrInvalidS3ObjectVersionId
}
}
return nil
case "data":
if _, err := dataurl.DecodeString(s); err != nil {
return err
}
return nil
default:
return errors.ErrInvalidScheme
}
}