diff --git a/aliyun/aliyun.go b/aliyun/aliyun.go
index 9ff630b..30239a6 100644
--- a/aliyun/aliyun.go
+++ b/aliyun/aliyun.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package aliyun
 
 import (
diff --git a/aliyun/aliyun_test.go b/aliyun/aliyun_test.go
index 967e217..4b53bff 100644
--- a/aliyun/aliyun_test.go
+++ b/aliyun/aliyun_test.go
@@ -1,7 +1,20 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package aliyun_test
 
 import (
-	"fmt"
 	"testing"
 
 	aliyunoss "github.com/aliyun/aliyun-oss-go-sdk/oss"
@@ -26,11 +39,13 @@ var client, privateClient *aliyun.Client
 
 func init() {
 	config := AppConfig{}
-	configor.New(&configor.Config{ENVPrefix: "ALIYUN"}).Load(&config)
+	err := configor.New(&configor.Config{ENVPrefix: "ALIYUN"}).Load(&config)
+	if err != nil {
+		panic(err)
+	}
 
-	if len(config.Private.AccessID) == 0 {
-		fmt.Println("No aliyun configuration")
-		return
+	if config.Private.AccessID == "" {
+		panic("No aliyun configuration")
 	}
 
 	client = aliyun.New(&aliyun.Config{
@@ -39,6 +54,7 @@ func init() {
 		Bucket:    config.Public.Bucket,
 		Endpoint:  config.Public.Endpoint,
 	})
+
 	privateClient = aliyun.New(&aliyun.Config{
 		AccessID:  config.Private.AccessID,
 		AccessKey: config.Private.AccessKey,
@@ -52,8 +68,9 @@ func TestAll(t *testing.T) {
 	if client == nil {
 		t.Skip(`skip because of no config: `)
 	}
-	clis := []*aliyun.Client{client, privateClient}
-	for _, cli := range clis {
+
+	clients := []*aliyun.Client{client, privateClient}
+	for _, cli := range clients {
 		tests.TestAll(cli, t)
 	}
 }
diff --git a/filesystem/filesystem.go b/filesystem/filesystem.go
index e5ceaa9..bcf7933 100644
--- a/filesystem/filesystem.go
+++ b/filesystem/filesystem.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package filesystem
 
 import (
diff --git a/filesystem/filesystem_test.go b/filesystem/filesystem_test.go
index 8ed9157..7a817c6 100644
--- a/filesystem/filesystem_test.go
+++ b/filesystem/filesystem_test.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package filesystem
 
 import (
diff --git a/googlecloud/googlecloud.go b/googlecloud/googlecloud.go
index 99629b9..5127596 100644
--- a/googlecloud/googlecloud.go
+++ b/googlecloud/googlecloud.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package googlecloud
 
 import (
diff --git a/googlecloud/googlecloud_test.go b/googlecloud/googlecloud_test.go
index 5541a34..a9eb73f 100644
--- a/googlecloud/googlecloud_test.go
+++ b/googlecloud/googlecloud_test.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package googlecloud_test
 
 import (
diff --git a/oss.go b/oss.go
index f09b974..2b4e98b 100644
--- a/oss.go
+++ b/oss.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package oss
 
 import (
diff --git a/qiniu/qiniu.go b/qiniu/qiniu.go
index 9a3cc30..4989387 100644
--- a/qiniu/qiniu.go
+++ b/qiniu/qiniu.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package qiniu
 
 import (
diff --git a/qiniu/qiniu_test.go b/qiniu/qiniu_test.go
index 756b0ac..f42fbea 100644
--- a/qiniu/qiniu_test.go
+++ b/qiniu/qiniu_test.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package qiniu_test
 
 import (
diff --git a/s3/s3.go b/s3/s3.go
index 82ca132..c50be62 100644
--- a/s3/s3.go
+++ b/s3/s3.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package s3
 
 import (
diff --git a/s3/s3_test.go b/s3/s3_test.go
index 2b0417a..d04935f 100644
--- a/s3/s3_test.go
+++ b/s3/s3_test.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package s3_test
 
 import (
diff --git a/tencent/tencent.go b/tencent/tencent.go
index 926e56d..5cf0fe3 100644
--- a/tencent/tencent.go
+++ b/tencent/tencent.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package tencent
 
 import (
@@ -142,7 +156,7 @@ func (client Client) Delete(path string) error {
 	return nil
 }
 
-//todo not found api
+// todo not found api
 func (client Client) List(path string) ([]*oss.Object, error) {
 	var objects []*oss.Object
 
diff --git a/tencent/tencent_test.go b/tencent/tencent_test.go
index 5cd138a..c720727 100644
--- a/tencent/tencent_test.go
+++ b/tencent/tencent_test.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package tencent
 
 import (
diff --git a/tencent/util.go b/tencent/util.go
index e90d012..850480c 100644
--- a/tencent/util.go
+++ b/tencent/util.go
@@ -1,15 +1,29 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package tencent
 
 import (
+	"crypto/hmac"
 	"crypto/sha1"
 	"encoding/hex"
-	"crypto/hmac"
+	"fmt"
 	"net/http"
-	"strings"
+	"net/url"
 	"sort"
+	"strings"
 	"time"
-	"fmt"
-	"net/url"
 )
 
 func sha(s string) string {
diff --git a/tests/tests.go b/tests/tests.go
index 5ef70ff..d51a366 100644
--- a/tests/tests.go
+++ b/tests/tests.go
@@ -1,3 +1,17 @@
+// Copyright 2023 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package tests
 
 import (