feat: support CUCloud OSS storage provider (#3400)

storage/cucloud_oss.go

@@ -0,0 +1,21 @@
+package storage
+
+import (
+	awss3 "github.com/aws/aws-sdk-go/service/s3"
+	"github.com/casdoor/oss"
+	"github.com/casdoor/oss/s3"
+)
+
+func NewCUCloudOssStorageProvider(clientId string, clientSecret string, region string, bucket string, endpoint string) oss.StorageInterface {
+	sp := s3.New(&s3.Config{
+		AccessID:   clientId,
+		AccessKey:  clientSecret,
+		Region:     region,
+		Bucket:     bucket,
+		Endpoint:   endpoint,
+		S3Endpoint: endpoint,
+		ACL:        awss3.BucketCannedACLPublicRead,
+	})
+
+	return sp
+}