------WebKitFormBoundaryCbkKYQSuaZj8PIIl
Content-Disposition: form-data; name="qqfile"; filename="test.txt"
Content-Type: application/octet-stream

This is the begin of my text file...
...
...
This is the end of my text file...

------WebKitFormBoundaryCbkKYQSuaZj8PIIl--