logic behind websites like dropbox,google drive

Question

I am creating website which is similar to dropbox. My logic behind the project is that I am going to create 1 table which includes username and pass and unique id. Then I will create folder with name as that of the unique code and I will store that particular person file like video, mp3, txt in that particular folder. Now my question is how to restrict other users from entering into that folder(because I can access that folder by directly entering the url)? Also suggest me if any other logic is more efficient.I am working on mini project. JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

I believe that Google Drive (and Dropbox probebly too), use https behind the scenes. In that case you simply need to make sure that your php/asp files make sure only the logged on user can access his/her files. It all depends on how your creating your cloud platform. You could also use scp, ssh, in that case your server automatically directs the client command to his/her own files.