Create & Init Project...

app/admin/main/usersuit/dao/upload.go

@@ -0,0 +1,74 @@
+package dao
+
+import (
+	"context"
+	"crypto/hmac"
+	"crypto/sha1"
+	"encoding/base64"
+	"fmt"
+	"hash"
+	"io"
+	"net/http"
+	"strconv"
+
+	"go-common/library/log"
+)
+
+const (
+	_uploadURL = "/bfs/%s/%s"
+	_template  = "%s\n%s\n%s\n%d\n"
+	_method    = "PUT"
+)
+
+// Upload upload picture or log file to bfs
+func (d *Dao) Upload(c context.Context, fileName, fileType string, expire int64, body io.Reader) (location string, err error) {
+	var (
+		url  string
+		req  *http.Request
+		resp *http.Response
+		code int
+	)
+	client := &http.Client{}
+	url = fmt.Sprintf(d.bfs+_uploadURL, d.bucket, fileName)
+	if req, err = http.NewRequest(_method, url, body); err != nil {
+		log.Error("http.NewRequest() Upload(%v) error(%v)", url, err)
+		return
+	}
+	authorization := authorize(d.key, d.secret, _method, d.bucket, fileName, expire)
+	req.Header.Set("Host", d.bfs)
+	req.Header.Add("Date", fmt.Sprint(expire))
+	req.Header.Add("Authorization", authorization)
+	req.Header.Add("Content-Type", fileType)
+	resp, err = client.Do(req)
+	if err != nil {
+		log.Error("resp.Do(%s) error(%v)", url, err)
+		return
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		err = fmt.Errorf("status code error:%v", resp.StatusCode)
+		return
+	}
+	code, err = strconv.Atoi(resp.Header.Get("code"))
+	if err != nil || code != http.StatusOK {
+		err = fmt.Errorf("response code error:%v", code)
+		return
+	}
+	location = resp.Header.Get("Location")
+	return
+}
+
+// authorize returns authorization for upload file to bfs
+func authorize(key, secret, method, bucket, file string, expire int64) (authorization string) {
+	var (
+		content   string
+		mac       hash.Hash
+		signature string
+	)
+	content = fmt.Sprintf(_template, method, bucket, file, expire)
+	mac = hmac.New(sha1.New, []byte(secret))
+	mac.Write([]byte(content))
+	signature = base64.StdEncoding.EncodeToString(mac.Sum(nil))
+	authorization = fmt.Sprintf("%s:%s:%d", key, signature, expire)
+	return
+}