/
headers.go
96 lines (78 loc) · 2.94 KB
/
headers.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
package sos
import (
"context"
"fmt"
"time"
"github.com/aws/aws-sdk-go-v2/aws"
s3types "github.com/aws/aws-sdk-go-v2/service/s3/types"
)
const (
ObjectHeaderCacheControl = "Cache-Control"
ObjectHeaderContentDisposition = "Content-Disposition"
ObjectHeaderContentEncoding = "Content-Encoding"
ObjectHeaderContentLanguage = "Content-Language"
ObjectHeaderContentType = "Content-Type"
ObjectHeaderExpires = "Expires"
)
func (c *Client) UpdateObjectHeaders(ctx context.Context, bucket, key string, headers map[string]*string) error {
object, err := c.CopyObject(ctx, bucket, key)
if err != nil {
return err
}
lookupHeader := func(key string, fallback *string) *string {
if v, ok := headers[key]; ok {
return v
}
return fallback
}
object.CacheControl = lookupHeader(ObjectHeaderCacheControl, object.CacheControl)
object.ContentDisposition = lookupHeader(ObjectHeaderContentDisposition, object.ContentDisposition)
object.ContentEncoding = lookupHeader(ObjectHeaderContentEncoding, object.ContentEncoding)
object.ContentLanguage = lookupHeader(ObjectHeaderContentLanguage, object.ContentLanguage)
object.ContentType = lookupHeader(ObjectHeaderContentType, object.ContentType)
// For some reason, the AWS SDK doesn't use the same type for the "Expires"
// header in GetObject (*string) and CopyObject (*time.Time)...
if v, ok := headers[ObjectHeaderExpires]; ok {
t, err := time.Parse(time.RFC822, aws.ToString(v))
if err != nil {
return fmt.Errorf(`invalid "Expires" header value %q, expecting RFC822 format`, aws.ToString(v))
}
object.Expires = &t
}
_, err = c.S3Client.CopyObject(ctx, object)
return err
}
func (c *Client) UpdateObjectsHeaders(ctx context.Context, bucket, prefix string, headers map[string]*string, recursive bool) error {
return c.ForEachObject(ctx, bucket, prefix, recursive, func(o *s3types.Object) error {
return c.UpdateObjectHeaders(ctx, bucket, aws.ToString(o.Key), headers)
})
}
func (c *Client) DeleteObjectHeaders(ctx context.Context, bucket, key string, headers []string) error {
object, err := c.CopyObject(ctx, bucket, key)
if err != nil {
return err
}
for _, header := range headers {
switch header {
case ObjectHeaderCacheControl:
object.CacheControl = nil
case ObjectHeaderContentDisposition:
object.ContentDisposition = nil
case ObjectHeaderContentEncoding:
object.ContentEncoding = nil
case ObjectHeaderContentLanguage:
object.ContentLanguage = nil
case ObjectHeaderContentType:
object.ContentType = aws.String("application/binary")
case ObjectHeaderExpires:
object.Expires = nil
}
}
_, err = c.S3Client.CopyObject(ctx, object)
return err
}
func (c *Client) DeleteObjectsHeaders(ctx context.Context, bucket, prefix string, headers []string, recursive bool) error {
return c.ForEachObject(ctx, bucket, prefix, recursive, func(o *s3types.Object) error {
return c.DeleteObjectHeaders(ctx, bucket, aws.ToString(o.Key), headers)
})
}