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93 lines
2.3 KiB
93 lines
2.3 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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"net/http" |
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"strconv" |
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"strings" |
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"time" |
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"go-common/library/log" |
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"go-common/library/net/trace" |
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) |
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const ( |
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_uploadURL = "/%s" |
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_family = "http_client" |
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_template = "%s\n%s\n\n%d\n" |
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_method = "PUT" |
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_fileType = "txt" |
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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 picture or log file to bfs |
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func (d *Dao) Upload(c context.Context, content string, expire int64) (location string, err error) { |
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var ( |
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url string |
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req *http.Request |
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resp *http.Response |
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header http.Header |
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code string |
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) |
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bfsConf := d.c.Bfs |
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url = fmt.Sprintf(bfsConf.Addr+_uploadURL, bfsConf.Bucket) |
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if req, err = http.NewRequest(_method, url, strings.NewReader(content)); err != nil { |
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log.Error("http.NewRequest() Upload(%v) error(%v)", url, err) |
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return |
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} |
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authorization := authorize(bfsConf.Key, bfsConf.Secret, _method, bfsConf.Bucket, expire) |
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req.Header.Set("Host", bfsConf.Addr) |
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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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if t, ok := trace.FromContext(c); ok { |
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t = t.Fork(_family, req.URL.Path) |
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defer t.Finish(&err) |
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} |
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c, cancel := context.WithTimeout(c, time.Duration(d.c.Bfs.Timeout)) |
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req = req.WithContext(c) |
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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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log.Error("bfsClient.Do(%s) error(%v)", url, err) |
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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 url(%s) http.statuscode:%d", url, resp.StatusCode) |
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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("Upload url(%s) code:%s", url, code) |
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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, 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(_template, method, bucket, 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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