exe file upload prevention

In my project i have created a file upload.Now it i开发者_开发百科s required that any exe file or exe file in a zip folder having .zip as extension, be prevented from being uploaded. Can someoe suggest me a solution?

For each of your task, you have to implement separate algorithm for check.

• Check extension before upload (see possible duplicate question)
• Check that uploaded zip is really an archive (mime type, libmagic, etc)
• Check that uploaded archive doesn't contain exe (unzip it, see previous paragraph)