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how to check the exe file validation

 
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Hi,
I am using strut2. And uploading the file.

I used the java script to avoid the exe file uploading.

But when i rename it.It get uploaded.

Can any tell me how to avoid exe file validation.

Thanks
 
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pankaj semwal wrote:But when i rename it.It get uploaded.



What do you mean?? Did you rename A.exe to B.exe or did you change the extension of the file??
 
pankaj semwal
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I rename the file.
from a.exe to a.doc.
 
Ankit Garg
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Well since you changed the file name, javascript will definitely pass the file as being ok. If you want to check if a file is actually an exe file with a different extension, then you'll have to do something on the server side. You might need to check the first few bytes of the file (called the header) but I don't have any idea about exe file headers...
 
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