forked from minio/minio
/
definitions.go
201 lines (177 loc) · 4.97 KB
/
definitions.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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
/*
* Minimalist Object Storage, (C) 2015 Minio, 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 fs
import (
"os"
"regexp"
"strings"
"time"
"unicode/utf8"
)
// BucketACL - bucket level access control
type BucketACL string
// different types of ACL's currently supported for buckets
const (
BucketPrivate = BucketACL("private")
BucketPublicRead = BucketACL("public-read")
BucketPublicReadWrite = BucketACL("public-read-write")
)
func (b BucketACL) String() string {
return string(b)
}
// IsPrivate - is acl Private
func (b BucketACL) IsPrivate() bool {
return b == BucketACL("private")
}
// IsPublicRead - is acl PublicRead
func (b BucketACL) IsPublicRead() bool {
return b == BucketACL("public-read")
}
// IsPublicReadWrite - is acl PublicReadWrite
func (b BucketACL) IsPublicReadWrite() bool {
return b == BucketACL("public-read-write")
}
// BucketMetadata - name and create date
type BucketMetadata struct {
Name string
Created time.Time
ACL BucketACL
}
// ObjectMetadata - object key and its relevant metadata
type ObjectMetadata struct {
Bucket string
Object string
ContentType string
Created time.Time
Mode os.FileMode
Md5 string
Size int64
}
// PartMetadata - various types of individual part resources
type PartMetadata struct {
PartNumber int
LastModified time.Time
ETag string
Size int64
}
// ObjectResourcesMetadata - various types of object resources
type ObjectResourcesMetadata struct {
Bucket string
Object string
UploadID string
StorageClass string
PartNumberMarker int
NextPartNumberMarker int
MaxParts int
IsTruncated bool
Part []*PartMetadata
EncodingType string
}
// UploadMetadata container capturing metadata on in progress multipart upload in a given bucket
type UploadMetadata struct {
Object string
UploadID string
StorageClass string
Initiated time.Time
}
// BucketMultipartResourcesMetadata - various types of bucket resources for inprogress multipart uploads
type BucketMultipartResourcesMetadata struct {
KeyMarker string
UploadIDMarker string
NextKeyMarker string
NextUploadIDMarker string
EncodingType string
MaxUploads int
IsTruncated bool
Upload []*UploadMetadata
Prefix string
Delimiter string
CommonPrefixes []string
}
// BucketResourcesMetadata - various types of bucket resources
type BucketResourcesMetadata struct {
Prefix string
Marker string
NextMarker string
Maxkeys int
EncodingType string
Delimiter string
IsTruncated bool
CommonPrefixes []string
}
// CompletePart - completed part container
type CompletePart struct {
PartNumber int
ETag string
}
// completedParts is a sortable interface for Part slice
type completedParts []CompletePart
func (a completedParts) Len() int { return len(a) }
func (a completedParts) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a completedParts) Less(i, j int) bool { return a[i].PartNumber < a[j].PartNumber }
// CompleteMultipartUpload container for completing multipart upload
type CompleteMultipartUpload struct {
Part []CompletePart
}
// IsValidBucketACL - is provided acl string supported
func IsValidBucketACL(acl string) bool {
switch acl {
case "private":
fallthrough
case "public-read":
fallthrough
case "public-read-write":
return true
case "":
// by default its "private"
return true
default:
return false
}
}
// IsValidBucketName - verify bucket name in accordance with
// - http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingBucket.html
func IsValidBucketName(bucket string) bool {
if strings.TrimSpace(bucket) == "" {
return false
}
if len(bucket) < 3 || len(bucket) > 63 {
return false
}
if bucket[0] == '.' || bucket[len(bucket)-1] == '.' {
return false
}
if match, _ := regexp.MatchString("\\.\\.", bucket); match == true {
return false
}
// We don't support buckets with '.' in them
match, _ := regexp.MatchString("^[a-zA-Z0-9][a-zA-Z0-9\\-]+[a-zA-Z0-9]$", bucket)
return match
}
// IsValidObjectName - verify object name in accordance with
// - http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingMetadata.html
func IsValidObjectName(object string) bool {
if strings.TrimSpace(object) == "" {
return true
}
if len(object) > 1024 || len(object) == 0 {
return false
}
if !utf8.ValidString(object) {
return false
}
return true
}