server {
    # Nginx versions 1.25+
    listen 443 ssl;
    listen [::]:443 ssl;
    http2 on;

    server_name karakeep.loadingm.xyz;
    acme_certificate      letsencrypt;
    ssl_certificate       $acme_certificate; 
    ssl_certificate_key   $acme_certificate_key; 
    ssl_certificate_cache max=2;

    ## The default `client_max_body_size` is 1M, this might not be enough for some posters, etc.
    client_max_body_size 20M;

    # Security / XSS Mitigation Headers
    add_header X-Content-Type-Options "nosniff";

    # Permissions policy. May cause issues with some clients
    add_header Permissions-Policy "accelerometer=(), ambient-light-sensor=(), battery=(), bluetooth=(), camera=(), clipboard-read=(), display-capture=(), document-domain=(), encrypted-media=(), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), payment=(), publickey-credentials-get=(), serial=(), sync-xhr=(), usb=(), xr-spatial-tracking=()" always;

    # Content Security Policy
    # See: https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP
    # Enforces https content and restricts JS/CSS to origin
    # External Javascript (such as cast_sender.js for Chromecast) must be whitelisted.
    set $CSP "default-src https: data: blob:";
    set $CSP "$CSP; img-src 'self' https://* data:";
    set $CSP "$CSP; style-src 'self' 'unsafe-inline' data:";
    set $CSP "$CSP; style-src-elem 'self' 'unsafe-inline' data:";
    set $CSP "$CSP; script-src 'self' 'unsafe-inline' https://www.gstatic.com https://www.youtubse.com blob: data:";
    set $CSP "$CSP; worker-src 'self' blob: data:";
    set $CSP "$CSP; connect-src 'self' data:";
    set $CSP "$CSP; object-src 'none' data:";
    set $CSP "$CSP; frame-ancestors 'self' data:";
    set $CSP "$CSP; font-src 'self' data:";
    add_header Content-Security-Policy $CSP;

    location / {
        # Proxy main karakeep traffic
        proxy_pass http://karakeep-web:3000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Protocol $scheme;
        proxy_set_header X-Forwarded-Host $http_host;
        proxy_hide_header Content-Security-Policy;

        # Disable buffering when the nginx proxy gets very resource heavy upon streaming
        proxy_buffering off;
    }
}
