forked from dapr/components-contrib
-
Notifications
You must be signed in to change notification settings - Fork 0
/
s3.go
101 lines (85 loc) · 2.37 KB
/
s3.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
// ------------------------------------------------------------
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
// ------------------------------------------------------------
package s3
import (
"bytes"
"encoding/json"
aws_auth "github.com/dapr/components-contrib/authentication/aws"
"github.com/aws/aws-sdk-go/service/s3/s3manager"
"github.com/google/uuid"
"github.com/aws/aws-sdk-go/aws"
"github.com/dapr/components-contrib/bindings"
"github.com/dapr/dapr/pkg/logger"
)
// AWSS3 is a binding for an AWS S3 storage bucket
type AWSS3 struct {
metadata *s3Metadata
uploader *s3manager.Uploader
logger logger.Logger
}
type s3Metadata struct {
Region string `json:"region"`
Endpoint string `json:"endpoint"`
AccessKey string `json:"accessKey"`
SecretKey string `json:"secretKey"`
Bucket string `json:"bucket"`
}
// NewAWSS3 returns a new AWSS3 instance
func NewAWSS3(logger logger.Logger) *AWSS3 {
return &AWSS3{logger: logger}
}
// Init does metadata parsing and connection creation
func (s *AWSS3) Init(metadata bindings.Metadata) error {
m, err := s.parseMetadata(metadata)
if err != nil {
return err
}
uploader, err := s.getClient(m)
if err != nil {
return err
}
s.metadata = m
s.uploader = uploader
return nil
}
func (s *AWSS3) Operations() []bindings.OperationKind {
return []bindings.OperationKind{bindings.CreateOperation}
}
func (s *AWSS3) Invoke(req *bindings.InvokeRequest) (*bindings.InvokeResponse, error) {
key := ""
if val, ok := req.Metadata["key"]; ok && val != "" {
key = val
} else {
key = uuid.New().String()
s.logger.Debugf("key not found. generating key %s", key)
}
r := bytes.NewReader(req.Data)
_, err := s.uploader.Upload(&s3manager.UploadInput{
Bucket: aws.String(s.metadata.Bucket),
Key: aws.String(key),
Body: r,
})
return nil, err
}
func (s *AWSS3) parseMetadata(metadata bindings.Metadata) (*s3Metadata, error) {
b, err := json.Marshal(metadata.Properties)
if err != nil {
return nil, err
}
var m s3Metadata
err = json.Unmarshal(b, &m)
if err != nil {
return nil, err
}
return &m, nil
}
func (s *AWSS3) getClient(metadata *s3Metadata) (*s3manager.Uploader, error) {
sess, err := aws_auth.GetClient(metadata.AccessKey, metadata.SecretKey, metadata.Region, metadata.Endpoint)
if err != nil {
return nil, err
}
uploader := s3manager.NewUploader(sess)
return uploader, nil
}