nginx - Asp.Net Core Google authentication

Question

My app runs on Google Compute Engine. Nginx used as a proxy server. Nginx was configured to use SSL. Below is the content of /etc/nginx/sites-available/default:

server {
    listen 80 default_server;
    listen [::]:80 default_server;
    server_name mywebapp.com;
    return 301 https://$server_name$request_uri;
}
server {
    listen 443 ssl http2 default_server;
    listen [::]:443 ssl http2 default_server;
    include snippets/ssl-mywebapp.com.conf;
    include snippets/ssl-params.conf;
    root /home/me/MyWebApp/wwwroot;
    location /.well-known/ {
    }
    location / {
        proxy_pass http://localhost:5000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection keep-alive;
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }
}

In Startup.cs I have:

app.UseGoogleAuthentication(new GoogleOptions()
{
    ClientId = Configuration["Authentication:Google:ClientId"],
    ClientSecret = Configuration["Authentication:Google:ClientSecret"],
});

Now in Google Cloud Platform I need to specify Authorized redirect URIs. If I enter the following, my web app works as expected:

http://mywebapp.com/signin-google

But, it won't work if https is used; browser displays the following error:

The redirect URI in the request, http://mywebapp.com/signin-google, does
not match the ones authorized for the OAuth client.

In this case, is it safe to use http as authorized redirect uri? What configuration do I need if I want it to be https?

Answer 1

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