Guillaume Lerouge can you tell us what is the generated wiki syntax for the imported office presentation?

Attached the file I used for testing as well as the resulting syntax.

The macro call is:

{{office attachment="Company Presentation.ppt"/}}

We need to check if temp action supports nested spaces. Vincent Massol is assigned to XWIKI-10375 but this is older than nested spaces.

FTR I've tried importing the attached PPT into a nested page (E.F.Office.WebHome) and it worked well.

The issue is with the office macro's getTemporaryFile() method which doesn't take into account nested spaces while the generated URLs do take them into account + the struts TempAction not supporting nested spaces.

So in short, I believe making the TempAction support Nested spaces is about the same cost of implementing XWIKI-10375. It would be possible to support Nested Spaces in the TempAction by concatenating all spaces together into a single space string but that would not scale when you have large hierarchies on Windows (max 260 - 12, see https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx ).