iot_server/internal/pkg/cos/cos.go

65 lines
1.7 KiB
Go

/*******************************************************************************
* Copyright 2017 Dell Inc.
* Copyright (c) 2019 Intel Corporation
*
* 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 cos
import (
"context"
"errors"
"fmt"
"github.com/tencentyun/cos-go-sdk-v5"
"io/ioutil"
"net/http"
"net/url"
)
type Cos struct {
client *cos.Client
}
func NewCos(uri, ak, sk string) *Cos {
u, _ := url.Parse(uri)
b := &cos.BaseURL{BucketURL: u}
client := cos.NewClient(b, &http.Client{
Transport: &cos.AuthorizationTransport{
SecretID: ak,
SecretKey: sk,
},
})
return &Cos{
client: client,
}
}
func (c *Cos) Get(name string) ([]byte, error) {
if c.client == nil {
return []byte{}, errors.New("cos client is null")
}
resp, err := c.client.Object.Get(context.Background(), name, nil)
if err != nil {
return []byte{}, fmt.Errorf("get cos object err:%s", err.Error())
}
bs, _ := ioutil.ReadAll(resp.Body)
resp.Body.Close()
return bs, nil
}
func (c *Cos) DownloadFiled(name, filepath string) error {
if c.client == nil {
return errors.New("cos client is null")
}
_, err := c.client.Object.Download(context.Background(), name, filepath, nil)
return err
}