Hosted application : File permissions , passing arguments from javascript to application

Question

I am very new to web hosted application area. I have an exe application. It is a windows console application. It takes some arguments( number and strings) and output some (numbers and string) . I want to make it web hosted. For simplicity we will consider following case. The exe is add.exe and takes two integer as input. It returns their sum. I want to make add.exe web hosted. I do not want “add.exe” to be readable( downloadable) by the site visitor. I have javascript that will take two numbers as input and and display the output ( obtained from add.exe ) . Questions: On the http server what should be the permission of the directory that has javascript file. What should be the permission of the javascript file.
How do I pass arguments to What should be relative path of add.exe ( with respect to the javascript files) and permissions of the add.exe, permission of directories appearing in the relative path? Environment: Please assume linux hosted. Do not worry about use of “exe” in the question. It can be any executable( and is not specific to windows). You may assume a C++ linux compiled executable( of that is needed for your answer, else please try to keep answer generic)

Answer 1

As far as i'm aware, the .exe will not get executed on the browser. you will need a HTML page to get the values and use C++ in the backend. The .exe file will always get downloaded irrespective of the file permissions. So the basic logic of executing a exe file on the browser is wrong.