-
Notifications
You must be signed in to change notification settings - Fork 2
/
get_file_bytes.go
56 lines (50 loc) · 1.41 KB
/
get_file_bytes.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
package xfer
import (
"fmt"
"net/url"
"os"
)
func GetFileBytes(uri string, certPath string, privateKeys map[string]string) ([]byte, error) {
u, err := url.Parse(uri)
if err != nil {
return nil, fmt.Errorf("cannot parse uri %s: %s", uri, err.Error())
}
var bytes []byte
if u.Scheme == UriSchemeFile || len(u.Scheme) == 0 {
bytes, err = os.ReadFile(uri)
if err != nil {
return nil, err
}
} else if u.Scheme == UriSchemeHttp || u.Scheme == UriSchemeHttps {
bytes, err = readHttpFile(uri, u.Scheme, certPath)
if err != nil {
return nil, err
}
} else if u.Scheme == UriSchemeS3 {
bytes, err = readS3File(uri)
if err != nil {
return nil, err
}
} else if u.Scheme == UriSchemeSftp {
// When dealing with sftp, we download the *whole* file, then we read all of it
dstFile, err := os.CreateTemp("", "capi")
if err != nil {
return nil, fmt.Errorf("cannot creeate temp file for %s: %s", uri, err.Error())
}
// Download and schedule delete
if err = DownloadSftpFile(uri, privateKeys, dstFile); err != nil {
dstFile.Close()
return nil, err
}
dstFile.Close()
defer os.Remove(dstFile.Name())
// Read
bytes, err = os.ReadFile(dstFile.Name())
if err != nil {
return nil, fmt.Errorf("cannot read from file %s downloaded from %s: %s", dstFile.Name(), uri, err.Error())
}
} else {
return nil, fmt.Errorf("uri scheme %s not supported: %s", u.Scheme, uri)
}
return bytes, nil
}