add ctyun xstore support (#92)

object/oos.go

@@ -50,12 +50,13 @@ func newOOS(endpoint, accessKey, secretKey string) (ObjectStorage, error) {
 	bucket := hostParts[0]
 	region := hostParts[1][4:]
 	endpoint = uri.Host[len(bucket)+1:]
+	forcePathStyle := strings.Contains(strings.ToLower(endpoint), "xstore.ctyun.cn")
 
 	awsConfig := &aws.Config{
 		Region:           &region,
 		Endpoint:         &endpoint,
 		DisableSSL:       aws.Bool(!ssl),
-		S3ForcePathStyle: aws.Bool(true),
+		S3ForcePathStyle: aws.Bool(!forcePathStyle),
 		// HTTPClient:       httpClient,
 		Credentials: credentials.NewStaticCredentials(accessKey, secretKey, ""),
 	}