do not mangle non-standard object paths

If the object path contains multiple slashes back-to-back, these used to
be wrongly merged by net.url.URL.String(). For example,

  account = "AUTH_aaa"
  container = "ccc"
  object = "foo///bar"

would become something like

  https://swift.example.com/v1/AUTH_aaa/ccc/foo/bar

With this change, we produce a more correct URL:

  https://swift.example.com/v1/AUTH_aaa/ccc/foo%2f%2f%2fbar

1 files changed, 3 insertions, 1 deletions

diff --git a/request.go b/request.go
index 0277f9a..266bee2 100644
--- a/request.go
+++ b/request.go
@@ -98,7 +98,9 @@ func (r Request) URL(backend Backend, values url.Values) (string, error) {
 		if strings.Contains(r.ContainerName, "/") {
 			return "", ErrMalformedContainerName
 		}
-		uri.Path += r.ContainerName + "/" + r.ObjectName
+		// Encode path so that double slashes are encoded and handled correct by backend server
+		uri.RawPath = uri.Path + r.ContainerName + "/" + url.PathEscape(r.ObjectName)
+		uri.Path = uri.Path + r.ContainerName + "/" + r.ObjectName
 	}
 
 	uri.RawQuery = values.Encode()