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oss.go
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oss.go
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package oss
import (
"io/ioutil"
"path/filepath"
"strconv"
"strings"
"time"
"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 Bucket string
const (
BucketPrivate Bucket = "private"
BucketPublic Bucket = "public"
)
func (b Bucket) String() string {
return string(b)
}
type Namespace string
func (n Namespace) String() string {
return string(n)
}
const (
bucketPublicStorageCounterDatabaseID = 1
bucketPrivateStorageCounterDatabaseID = 2
)
type NewProviderFunc func(configService config.IConfig, clockService clock.IClock, publicNamespaces, privateNamespaces []Namespace) (IProvider, error)
type IProvider interface {
GetBucketConfig(bucket Bucket) *BucketConfig
GetClient() interface{}
GetObjectURL(bucket Bucket, object *Object) (string, error)
GetObjectOSSURL(bucket Bucket, object *Object) (string, error)
GetObjectCDNURL(bucket Bucket, object *Object) (string, error)
GetObjectSignedURL(bucket Bucket, object *Object, expires time.Time) (string, error)
GetObjectBase64Content(bucket Bucket, object *Object) (string, error)
UploadObjectFromFile(ormService *beeorm.Engine, bucket Bucket, namespace Namespace, localFile string) (Object, error)
UploadObjectFromBase64(ormService *beeorm.Engine, bucket Bucket, namespace Namespace, content, extension string) (Object, error)
UploadObjectFromByte(ormService *beeorm.Engine, bucket Bucket, namespace Namespace, content []byte, extension string) (Object, error)
UploadImageFromFile(ormService *beeorm.Engine, bucket Bucket, namespace Namespace, localFile string) (Object, error)
UploadImageFromBase64(ormService *beeorm.Engine, bucket Bucket, namespace Namespace, image, extension string) (Object, error)
DeleteObject(bucket Bucket, object *Object) error
// CreateObjectFromKey TODO Remove
CreateObjectFromKey(ormService *beeorm.Engine, bucket Bucket, key string) Object
}
type Object struct {
ID uint64
StorageKey string
Data interface{}
}
type BucketConfig struct {
StorageCounterDatabaseID uint64
Type Bucket
Name string
CDNURL string
Namespaces map[Namespace]Namespace
ACL string
}
func (b *BucketConfig) validateNamespace(namespace Namespace) {
_, has := b.Namespaces[namespace]
if !has {
panic("Namespace [" + namespace.String() + "] not found in " + b.Type.String())
}
}
func loadBucketsConfig(configService config.IConfig, publicNamespaces, privateNamespaces []Namespace) map[Bucket]*BucketConfig {
bucketsConfigDefinitions, ok := configService.Get("oss.buckets")
if !ok {
panic("oss: missing bucket configuration")
}
buckets := map[Bucket]*BucketConfig{}
bucketsConfigs := bucketsConfigDefinitions.(map[interface{}]interface{})
for bucket, bucketConfigsI := range bucketsConfigs {
bucketConfigs := bucketConfigsI.(map[interface{}]interface{})
bucketConfig := &BucketConfig{
Type: Bucket(bucket.(string)),
Namespaces: map[Namespace]Namespace{},
}
if bucketConfig.Type == BucketPublic {
bucketConfig.StorageCounterDatabaseID = bucketPublicStorageCounterDatabaseID
if publicNamespaces == nil {
panic("oss: missing namespaces for public bucket")
}
for _, publicNamespace := range publicNamespaces {
bucketConfig.Namespaces[publicNamespace] = publicNamespace
}
}
if bucketConfig.Type == BucketPrivate {
bucketConfig.StorageCounterDatabaseID = bucketPrivateStorageCounterDatabaseID
if privateNamespaces == nil {
panic("oss: missing namespaces for private bucket")
}
for _, privateNamespace := range privateNamespaces {
bucketConfig.Namespaces[privateNamespace] = privateNamespace
}
}
for keyI, valueI := range bucketConfigs {
key := keyI.(string)
if key == "name" {
if valueI == nil {
panic("value is nil for key name for bucket: " + bucketConfig.Type)
}
bucketConfig.Name = valueI.(string)
continue
}
if key == "cdn_url" {
if valueI != nil {
bucketConfig.CDNURL = valueI.(string)
}
continue
}
if key == "ACL" {
if valueI == nil {
panic("value is nil for key ACL for bucket: " + bucketConfig.Type)
}
bucketConfig.ACL = valueI.(string)
continue
}
panic("invalid key " + key + " for bucket: " + bucketConfig.Type.String())
}
buckets[bucketConfig.Type] = bucketConfig
}
if len(buckets) == 0 {
panic("missing buckets configuration")
}
return buckets
}
func getObjectCDNURL(bucketConfig *BucketConfig, storageKey string) string {
if bucketConfig.CDNURL == "" {
return ""
}
replacer := strings.NewReplacer("{StorageKey}", storageKey, "{Bucket}", bucketConfig.Name)
return replacer.Replace(bucketConfig.CDNURL)
}
func getStorageCounter(ormService *beeorm.Engine, bucketConfig *BucketConfig) uint64 {
bucketID := bucketConfig.StorageCounterDatabaseID
ossBucketCounterEntity := &entity.OSSBucketCounterEntity{}
locker := ormService.GetRedis().GetLocker()
lockerKey := "locker_oss_counters_bucket_" + strconv.FormatUint(bucketID, 10)
lock, hasLock := locker.Obtain(lockerKey, 2*time.Second, 5*time.Second)
defer lock.Release()
if !hasLock {
panic("Failed to obtain lock for :" + lockerKey)
}
has := ormService.LoadByID(bucketID, ossBucketCounterEntity)
if !has {
ossBucketCounterEntity.ID = bucketID
ossBucketCounterEntity.Counter = 1
} else {
ossBucketCounterEntity.Counter = ossBucketCounterEntity.Counter + 1
}
ormService.Flush(ossBucketCounterEntity)
if lock.TTL() == 0 {
panic("lock lost for :" + lockerKey)
}
return ossBucketCounterEntity.Counter
}
func readContentFile(localFile string) ([]byte, string, error) {
fileContent, err := ioutil.ReadFile(localFile)
if err != nil {
return nil, "", err
}
return fileContent, filepath.Ext(localFile), nil
}
func getBucketConfig(bucketConfig *BucketConfig) *BucketConfig {
return &BucketConfig{
StorageCounterDatabaseID: bucketConfig.StorageCounterDatabaseID,
Type: bucketConfig.Type,
Name: bucketConfig.Name,
CDNURL: bucketConfig.CDNURL,
Namespaces: bucketConfig.Namespaces,
ACL: bucketConfig.ACL,
}
}