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amazon_oss.go
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amazon_oss.go
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package oss
import (
"bytes"
"context"
"encoding/base64"
"errors"
"strconv"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/latolukasz/beeorm"
"github.com/coretrix/hitrix/pkg/entity"
"github.com/coretrix/hitrix/service/component/clock"
"github.com/coretrix/hitrix/service/component/config"
)
type AmazonOSS struct {
client *s3.S3
clockService clock.IClock
ctx context.Context
buckets bucketsConfig
namespaces namespacesConfig
}
func NewAmazonOSS(configService config.IConfig, clockService clock.IClock, namespaces Namespaces) (IProvider, error) {
disableSSL := false
if val, ok := configService.Bool("oss.amazon.disable_ssl"); ok && val {
disableSSL = true
}
endpoint, ok := configService.String("oss.amazon.endpoint")
if !ok {
return nil, errors.New("missing endpoint")
}
accessKeyID, ok := configService.String("oss.amazon.access_key_id")
if !ok {
return nil, errors.New("missing access_key_id")
}
secretAccessKey, ok := configService.String("oss.amazon.secret_access_key")
if !ok {
return nil, errors.New("missing secret_access_key")
}
region, ok := configService.String("oss.amazon.region")
if !ok {
return nil, errors.New("missing region")
}
newSession, err := session.NewSession(&aws.Config{
Credentials: credentials.NewStaticCredentials(accessKeyID, secretAccessKey, ""),
Endpoint: aws.String(endpoint),
S3ForcePathStyle: aws.Bool(true),
Region: aws.String(region),
DisableSSL: aws.Bool(disableSSL),
})
if err != nil {
return nil, err
}
bucketsConfiguration, namespacesConfiguration := loadConfig(configService, namespaces)
return &AmazonOSS{
client: s3.New(newSession),
clockService: clockService,
ctx: context.Background(),
buckets: bucketsConfiguration,
namespaces: namespacesConfiguration,
}, nil
}
type CachedObjectURLTemplate struct {
Environment string
BucketName string
StorageKey string
CounterID string
}
func (ossStorage *AmazonOSS) GetBucketConfig(bucket Bucket) *BucketConfig {
return getBucketConfig(ossStorage.buckets[bucket])
}
func (ossStorage *AmazonOSS) GetClient() interface{} {
return ossStorage.client
}
func (ossStorage *AmazonOSS) GetObjectURL(namespace Namespace, object *entity.FileObject) (string, error) {
cdnURL, err := ossStorage.GetObjectCDNURL(namespace, object)
if err != nil {
return "", err
}
if cdnURL != "" {
return cdnURL, nil
}
return ossStorage.GetObjectOSSURL(namespace, object)
}
func (ossStorage *AmazonOSS) GetObjectOSSURL(_ Namespace, _ *entity.FileObject) (string, error) {
panic("not implemented")
}
func (ossStorage *AmazonOSS) GetObjectCDNURL(namespace Namespace, object *entity.FileObject) (string, error) {
if object == nil {
return "", errors.New("nil file object")
}
bucketConfig, err := ossStorage.namespaces.getBucketConfig(namespace)
if err != nil {
return "", err
}
return getObjectCDNURL(bucketConfig, object.StorageKey), nil
}
func (ossStorage *AmazonOSS) GetObjectSignedURL(namespace Namespace, object *entity.FileObject, expires time.Time) (string, error) {
if object == nil {
return "", errors.New("nil file object")
}
now := ossStorage.clockService.Now()
if now.After(expires) {
return "", errors.New("expire time is before now")
}
bucketConfig, err := ossStorage.namespaces.getBucketConfig(namespace)
if err != nil {
return "", err
}
req, _ := ossStorage.client.GetObjectRequest(&s3.GetObjectInput{
Bucket: aws.String(bucketConfig.Name),
Key: aws.String(object.StorageKey)},
)
return req.Presign(expires.Sub(now))
}
func (ossStorage *AmazonOSS) GetObjectBase64Content(_ Namespace, _ *entity.FileObject) (string, error) {
panic("not implemented")
}
func (ossStorage *AmazonOSS) UploadObjectFromByte(
ormService *beeorm.Engine,
namespace Namespace,
objectContent []byte,
extension string,
) (entity.FileObject, error) {
bucketConfig, err := ossStorage.namespaces.getBucketConfig(namespace)
if err != nil {
return entity.FileObject{}, err
}
storageCounter := getStorageCounter(ormService, bucketConfig)
objectKey := ossStorage.getObjectKey(namespace, storageCounter, extension)
putObjectInput := &s3.PutObjectInput{
Body: bytes.NewReader(objectContent),
Bucket: aws.String(bucketConfig.Name),
Key: aws.String(objectKey),
}
if bucketConfig.ACL != "" {
putObjectInput.ACL = aws.String(bucketConfig.ACL)
}
_, err = ossStorage.client.PutObject(putObjectInput)
if err != nil {
return entity.FileObject{}, err
}
return entity.FileObject{
ID: storageCounter,
StorageKey: objectKey,
}, nil
}
func (ossStorage *AmazonOSS) UploadObjectFromFile(ormService *beeorm.Engine, namespace Namespace, localFile string) (entity.FileObject, error) {
fileContent, ext, err := readContentFile(localFile)
if err != nil {
return entity.FileObject{}, err
}
return ossStorage.UploadObjectFromByte(ormService, namespace, fileContent, ext)
}
func (ossStorage *AmazonOSS) UploadObjectFromBase64(
ormService *beeorm.Engine,
namespace Namespace,
content string,
extension string,
) (entity.FileObject, error) {
byteData, err := base64.StdEncoding.DecodeString(content)
if err != nil {
return entity.FileObject{}, err
}
return ossStorage.UploadObjectFromByte(ormService, namespace, byteData, extension)
}
func (ossStorage *AmazonOSS) UploadImageFromFile(ormService *beeorm.Engine, namespace Namespace, localFile string) (entity.FileObject, error) {
return ossStorage.UploadObjectFromFile(ormService, namespace, localFile)
}
func (ossStorage *AmazonOSS) UploadImageFromBase64(
ormService *beeorm.Engine,
namespace Namespace,
image string,
extension string,
) (entity.FileObject, error) {
byteData, err := base64.StdEncoding.DecodeString(image)
if err != nil {
return entity.FileObject{}, err
}
return ossStorage.UploadObjectFromByte(ormService, namespace, byteData, extension)
}
func (ossStorage *AmazonOSS) DeleteObject(namespace Namespace, object *entity.FileObject) error {
bucketConfig, err := ossStorage.namespaces.getBucketConfig(namespace)
if err != nil {
return err
}
_, err = ossStorage.client.DeleteObjects(&s3.DeleteObjectsInput{
Bucket: aws.String(bucketConfig.Name),
Delete: &s3.Delete{Objects: []*s3.ObjectIdentifier{{
Key: aws.String(object.StorageKey),
}}},
})
return err
}
func (ossStorage *AmazonOSS) getObjectKey(namespace Namespace, storageCounter uint64, fileExtension string) string {
return namespace.String() + "/" + strconv.FormatUint(storageCounter, 10) + fileExtension
}