84 lines
2.1 KiB
Go
84 lines
2.1 KiB
Go
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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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"fmt"
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"hash"
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"net/http"
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"strconv"
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"bytes"
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"go-common/library/ecode"
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"go-common/library/log"
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)
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const (
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_uploadURL = "/bfs/%s/%s"
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_template = "%s\n%s\n%s\n%d\n"
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_method = "PUT"
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)
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// Upload uploads cover to bfs
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func (d *Dao) Upload(c context.Context, fileName string, fileType string, timing int64, data []byte) (location string, err error) {
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bfs := d.c.Bfs
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var (
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req *http.Request
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resp *http.Response
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code int
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url = fmt.Sprintf(bfs.Host+_uploadURL, bfs.Bucket, fileName)
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)
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// prepare the data of the file and init the request
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buf := new(bytes.Buffer)
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_, err = buf.Write(data)
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if err != nil {
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log.Error("Upload.buf.Write.error(%v)", err)
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err = ecode.RequestErr
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return
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}
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if req, err = http.NewRequest(_method, url, buf); 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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// request setting
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authorization := authorize(bfs.Key, bfs.Secret, _method, bfs.Bucket, fileName, timing)
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req.Header.Set("Date", fmt.Sprint(timing))
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req.Header.Set("Authorization", authorization)
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req.Header.Set("Content-Type", fileType)
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resp, err = d.bfsClient.Do(req)
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// response treatment
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if err != nil {
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log.Error("Bfs client.Do(%s) error(%v)", url, err)
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return
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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err = fmt.Errorf("Bfs status code error:%v", resp.StatusCode)
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return
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}
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code, err = strconv.Atoi(resp.Header.Get("code"))
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if err != nil || code != 200 {
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err = fmt.Errorf("Bfs response code error:%v", code)
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return
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}
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location = resp.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, file 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, file, 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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