Possible issue when running vascan_and_tools_playbook with port forwarding

[cgendreau]

This issue is mostly to capture documentation about a specific issue with my development setup and the nginx configuration.

Setup:
VirtualBox Port Forwarding Host 8082 <-> Guest 80.

When accessing the static assets the following behaviour is observed:

http://localhost:8082/sitemap/test.txt -> HTTP 200 OK (test.txt was created for testing purpose)
http://localhost:8082/sitemap/ -> HTTP 403 Forbidden (that's ok, directory listing is disabled)
http://localhost:8082/sitemap -> HTTP 301 Moved Permanently Location: http://localhost/sitemap/

Nginx will automatically try a redirect to a resource with a trailing slash if no resource was found without the trailing slash. The behaviour is fine except that the port is missing from the redirect.

I was able to fix the issue locally by using a configuration similar to:

location ~ ^(\/sitemap|\/downloads)$ {
   return 301 $scheme://$http_host$uri/;
}

The idea is to build the redirect url with $http_host. We also want to restrict the redirect to known assets (sitemap, downloads ...) to avoid applying it to app (e.g. vascan).