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76 lines
2.1 KiB
76 lines
2.1 KiB
package dao |
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import ( |
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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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"errors" |
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"fmt" |
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"hash" |
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"io" |
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"net/http" |
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"strconv" |
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"time" |
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"go-common/library/ecode" |
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"go-common/library/log" |
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) |
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var ( |
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errUpload = errors.New("Upload failed") |
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) |
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// Upload upload bfs. |
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func (d *Dao) Upload(c context.Context, fileType string, filename string, body io.Reader) (location string, err error) { |
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req, err := http.NewRequest(d.c.BFS.Method, d.c.BFS.URL+filename, body) |
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if err != nil { |
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log.Error("http.NewRequest error (%v) | fileType(%s)", err, fileType) |
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return |
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} |
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expire := time.Now().Unix() |
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authorization := authorize(d.c.BFS.Key, d.c.BFS.Secret, d.c.BFS.Method, d.c.BFS.Bucket, filename, expire) |
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req.Header.Set("Host", d.c.BFS.Host) |
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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(d.c.BFS.Timeout)) |
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req = req.WithContext(ctx) |
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defer cancel() |
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resp, err := d.client.Do(req) |
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if err != nil { |
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log.Error("d.Client.Do error(%v) | url(%s)", err, d.c.BFS.URL+filename) |
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err = ecode.BfsUploadServiceUnavailable |
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return |
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} |
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if resp.StatusCode != http.StatusOK { |
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log.Error("Upload http.StatusCode nq http.StatusOK (%d) | url(%s)", resp.StatusCode, d.c.BFS.URL+filename) |
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err = errUpload |
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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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log.Error("strconv.Itoa err, code(%s) | url(%s)", code, d.c.BFS.URL+filename) |
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err = errUpload |
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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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// authorize returns authorization for upload file to bfs |
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func authorize(key, secret, method, bucket string, fname 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, fname, 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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