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How do I restrict access to pdf files on my server?


How do I restrict access to pdf files on my server?

By : Carlos Custodio
Date : October 18 2020, 11:12 AM
I wish did fix the issue. Pass the request through a controller, and return a FileResult. You can apply whatever security you want to the controller method, either by using the Authorize attribute, or by checking permissions inside the controller method.
There is an example of such code at this question, which illustrates how to return an image file. Just return your pdf instead of the image file, and use application/pdf as the MIME type.
code :


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How do i restrict direct access (from browser) to a folder but allow access to image files inside it..?

How do i restrict direct access (from browser) to a folder but allow access to image files inside it..?


By : sujit
Date : March 29 2020, 07:55 AM
Any of those help You can simply add an empty index.html. This will stop the direct access to that folder.
Another solution is that:
code :
Options -Indexes
Restrict execution of Python files only to server (prevent access from browser)

Restrict execution of Python files only to server (prevent access from browser)


By : José Eurique C. Ribe
Date : March 29 2020, 07:55 AM
wish helps you If you use Apache, you could use .htaccess to limit access to your files:
http://httpd.apache.org/docs/current/howto/htaccess.html
How do I restrict access to files with a Tomcat server?

How do I restrict access to files with a Tomcat server?


By : waynec
Date : March 29 2020, 07:55 AM
With these it helps Use a Servlet Filter for it. The servlet filter should be mapped to the URL to access to this PDF files. For example:
code :
@WebFilter("/path/to/your/pdf/*")
public class FileFilter implements Filter {
    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
        throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;
        HttpSession session = request.getSession(false);
        if (session == null) {
            User user = (User)session.getAttribute("user");
            if (validateUserForPdfDownload(user)) {
                //user can download the file
                chain.doFilter(req, res);
            } else {
                //user must not download the file
                //redirect user to some URL
                response.sendRedirect(request.getContextPath() + "/index.html");
            }
        }
    }

    public boolean validateUserForPdfDownload(User user) {
        //define the logic to validate if user is able to download the file
    }
}
restrict access to certain files, folders in python tornado web server

restrict access to certain files, folders in python tornado web server


By : user2676577
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Subclass StaticFileHandler and then validate the filenames in validate_absolute_path method. Raise 404 or 403 errors for files you don't want to serve.
code :
from tornado import web
from tornado.web import HTTPError

class MyStaticFileHandler(web.StaticFileHandler):
    def validate_absolute_path(self, root, absolute_path):
        if absolute_path.endswith('.py'):
            # raise 403 Forbidden error for all files ending with .py
            raise HTTPError(403)

        return super().validate_absolute_path(root, absolute_path)
...

def validate_absolute_path(self, root, absolute_path):
    if absolute_path.endswith('.py'):
        self.set_status(404)
        # send a custom 404 response from an html file
        with open("path/to/404.html", "r") as f:
            self.write(f.read())

        return None

    return super().validate_absolute_path(root, absolute_path)
Restrict direct access to .php files through browser and allow only index.php to access them

Restrict direct access to .php files through browser and allow only index.php to access them


By : Emir Buğra KÖKSALAN
Date : March 29 2020, 07:55 AM
To fix the issue you can do I have a script on my website allowing users to edit/create their account. I want to restrict direct access to the files through browser (ex.www.mydomain.com/cp/page/login.php or www.mydomain.com/cp/home.php) and allow only index.php to access these files. I tried with .htaccess but index.php cant access them. Also i can't move them out of public_html folder. Its not include folder. How i can achive that? Please let me now if you need something else. , One way of doing that is by using include or require calls from PHP:
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