[FIXED] Flask - CGI - need to fix issues with htaccess

Issue

So I have successfully deployed a Flask app using CGI. In order to get the app working, my .htaccess file had to look like this:

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ /home/user/public_html/mysite/cgi-bin/main.cgi/$1 [L]

However, I am facing a couple of issues.

1. mysite.com works, but when I link other pages to the home page, it takes them to mysite.com/cgi-bin/main.cgi. I'd like for the links to take users to mysite.com. Similarly, when I try to link to another page, it goes to mysite.com/cgi-bin/main.cgi/page2, when I actually want it to be mysite.com/page2. How can I fix this?

2. The following .htaccess content seems to not work:

RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]
RewriteCond %{HTTPS} !=on
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301,NE]
Header always set Content-Security-Policy "upgrade-insecure-requests;"

I'm not sure if the above two issues are related, but I'd like to fix both.

Solution

With your shown samples, please try following Rules. Please make sure your htaccess Rules file is besides your cgi-bin directory/folder. Also clear your browser cache before testing your URLs.

RewriteEngine ON
##Rules for applying https to urls.
RewriteCond %{HTTPS} !=on
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301,NE]

##Rules to remove www from urls.
RewriteCond %{HTTP_HOST} ^(?:www\.)?(.*)$ [NC]
RewriteRule ^ https://%1/%{REQUEST_URI} [NE,R=301,L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^cgi-bin/main.cgi/page2/?$ cgi-bin/templates/page2/index.html [NC,L]

JS/CS rewrite/redirect:

You may need to use base tag to fix your js and other relative resources. If you are linking js files using a relative path then the file will obviously get a 404 because its looking for URL path. for example if the URL path is /file/ instead of file.html then your relative resources are loading from /file/ which is not a directory but rewritten html file. To fix this make your links absolute or use base tag. In the header of your webpage add this <base href="/"> so that your relative links can load from the correct location.

Answered By - RavinderSingh13