now any data node can accept storing files

files are automatically copied to replicas

weed-fs/src/pkg/operation/upload_content.go

@@ -14,14 +14,14 @@ type UploadResult struct {
   Size int
 }
 
-func Upload(server string, fid string, filename string, reader io.Reader) (*UploadResult, error) {
+func Upload(uploadUrl string, filename string, reader io.Reader) (*UploadResult, error) {
   body_buf := bytes.NewBufferString("")
   body_writer := multipart.NewWriter(body_buf)
   file_writer, err := body_writer.CreateFormFile("file", filename)
   io.Copy(file_writer, reader)
   content_type := body_writer.FormDataContentType()
   body_writer.Close()
-  resp, err := http.Post("http://"+server+"/"+fid, content_type, body_buf)
+  resp, err := http.Post(uploadUrl, content_type, body_buf)
   if err != nil {
     return nil, err
   }