97 lines
2.2 KiB
Go
97 lines
2.2 KiB
Go
package upload
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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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"io"
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"net/http"
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"strconv"
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"go-common/app/admin/main/credit/conf"
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"go-common/library/log"
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httpx "go-common/library/net/http/blademaster"
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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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_bucket = "test" //blocked
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)
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// Dao .
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type Dao struct {
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key string
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secret string
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host string
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client *httpx.Client
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}
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// New .
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func New(c *conf.Config) (d *Dao) {
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d = &Dao{
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key: c.BFS.Key,
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secret: c.BFS.Secret,
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host: c.Host.Bfs,
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client: httpx.NewClient(c.HTTPClient),
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}
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return
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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, fileName, fileType string, expire int64, body io.Reader) (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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code int
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)
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client := &http.Client{}
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url = fmt.Sprintf(d.host+_uploadURL, _bucket, fileName)
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if req, err = http.NewRequest(_method, url, body); 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(d.key, d.secret, _method, _bucket, fileName, expire)
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req.Header.Set("Host", d.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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resp, err = client.Do(req)
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if err != nil {
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log.Error("resp.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("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("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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