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120 lines
3.4 KiB
120 lines
3.4 KiB
package dao |
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import ( |
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"bytes" |
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"context" |
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"crypto/hmac" |
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"crypto/sha1" |
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"encoding/base64" |
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"fmt" |
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"hash" |
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"io/ioutil" |
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"net/http" |
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"strconv" |
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"time" |
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"go-common/app/admin/main/member/conf" |
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"go-common/library/ecode" |
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"github.com/pkg/errors" |
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) |
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// UploadImage upload bfs. |
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func (d *Dao) UploadImage(c context.Context, fileType string, bs []byte, bfsConf *conf.BFS) (location string, err error) { |
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url := bfsConf.URL + bfsConf.Bucket + "/" |
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req, err := http.NewRequest("PUT", url, bytes.NewBuffer(bs)) |
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if err != nil { |
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err = errors.Wrap(err, " UploadImage http.NewRequest() failed") |
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return |
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} |
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expire := time.Now().Unix() |
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authorization := authorize(bfsConf.Key, bfsConf.Secret, "PUT", bfsConf.Bucket, "", expire) |
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req.Header.Set("Host", url) |
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req.Header.Add("Date", fmt.Sprint(expire)) |
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req.Header.Add("Authorization", authorization) |
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req.Header.Add("Content-Type", fileType) |
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// timeout |
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ctx, cancel := context.WithTimeout(c, time.Duration(bfsConf.Timeout)) |
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req = req.WithContext(ctx) |
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defer cancel() |
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resp, err := d.bfsclient.Do(req) |
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if err != nil { |
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err = errors.Wrapf(ecode.BfsUploadServiceUnavailable, "d.bfsclient.Do error(%v) | url(%s)", err, url) |
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return |
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} |
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if resp.StatusCode != http.StatusOK { |
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err = errors.Errorf("UploadImage failed,http code:%d", resp.StatusCode) |
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return |
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} |
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header := resp.Header |
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code := header.Get("Code") |
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if code != strconv.Itoa(http.StatusOK) { |
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err = errors.Wrap(ecode.String(code), "UploadImage failed") |
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return |
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} |
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location = header.Get("Location") |
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return |
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} |
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// DelImage del bfs image. |
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func (d *Dao) DelImage(c context.Context, fileName string, bfsConf *conf.BFS) (err error) { |
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url := bfsConf.URL + bfsConf.Bucket + "/" + fileName |
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req, err := http.NewRequest("DELETE", url, nil) |
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if err != nil { |
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err = errors.Wrap(err, "DelImage http.NewRequest() failed") |
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return |
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} |
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expire := time.Now().Unix() |
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authorization := authorize(bfsConf.Key, bfsConf.Secret, "DELETE", bfsConf.Bucket, fileName, expire) |
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req.Header.Set("Host", url) |
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req.Header.Add("Date", fmt.Sprint(expire)) |
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req.Header.Add("Authorization", authorization) |
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// timeout |
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ctx, cancel := context.WithTimeout(c, time.Duration(bfsConf.Timeout)) |
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req = req.WithContext(ctx) |
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defer cancel() |
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resp, err := d.bfsclient.Do(req) |
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if err != nil { |
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err = errors.Wrapf(ecode.BfsUploadServiceUnavailable, "d.bfsclient.Do error(%v) | url(%s)", err, url) |
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return |
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} |
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if resp.StatusCode != http.StatusOK { |
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err = errors.Errorf("DelImage failed,http code:%d", resp.StatusCode) |
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return |
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} |
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header := resp.Header |
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code := header.Get("Code") |
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if code != strconv.Itoa(http.StatusOK) { |
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err = errors.Errorf("DelImage failed,res code:%s", code) |
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return |
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} |
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return |
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} |
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// authorize returns authorization for upload file to bfs |
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func authorize(key, secret, method, bucket, fileName string, expire int64) (authorization string) { |
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var ( |
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content string |
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mac hash.Hash |
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signature string |
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) |
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content = fmt.Sprintf("%s\n%s\n%s\n%d\n", method, bucket, fileName, expire) |
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mac = hmac.New(sha1.New, []byte(secret)) |
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mac.Write([]byte(content)) |
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signature = base64.StdEncoding.EncodeToString(mac.Sum(nil)) |
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authorization = fmt.Sprintf("%s:%s:%d", key, signature, expire) |
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return |
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} |
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//Image image. |
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func (d *Dao) Image(url string) ([]byte, error) { |
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resp, err := d.bfsclient.Get(url) |
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if err != nil { |
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return nil, err |
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} |
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if resp.StatusCode != http.StatusOK { |
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return nil, errors.Errorf("Image url(%s) resp.StatusCode code(%v)", url, resp.StatusCode) |
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} |
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defer resp.Body.Close() |
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return ioutil.ReadAll(resp.Body) |
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}
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