Pandora is strictly breaking FB Alpha license:

You may freely use, modify, and distribute both the FB Alpha source code and binary, however the following restrictions apply to the FB Alpha original material (see below for a list of libraries with differing licenses, please consult their respective documentation for more information):

* You may not sell, lease, rent or otherwise seek to gain monetary profit from FB Alpha;
* You must make public any changes you make to the source code;
* You must include, verbatim, the full text of this license;

They have to provide their modified code, or they just are chinese gnufukers