ufail.nginx

limit_req_zone $binary_remote_addr zone=u.fail_ratelimit:10m rate=20r/s;
proxy_cache_path /opt/lemmy_cache keys_zone=lemmy_cache:1024m;

server {
    listen 80;
    listen [::]:80;
    server_name u.fail www.u.fail;
    location / { return 301 https://$host$request_uri; }›
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;

    server_name www.u.fail;
    rewrite ^/(.*) https://u.fail/$1 permanent;

    ssl_certificate /etc/letsencrypt/live/u.fail/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/u.fail/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;

    server_name u.fail;

    ssl_certificate /etc/letsencrypt/live/u.fail/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/u.fail/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

    access_log  /var/log/nginx/u.fail_access.log;
    error_log  /var/log/nginx/u.fail_error.log;

    # Enable compression for JS/CSS/HTML bundle, for improved client load times.
    # It might be nice to compress JSON, but leaving that out to protect against potential
    # compression+encryption information leak attacks like BREACH.
    gzip on;
    gzip_types text/css application/javascript image/svg+xml;
    gzip_vary on;

    # Only connect to this site via HTTPS for the two years
    add_header Strict-Transport-Security "max-age=63072000";

    # Various content security headers
    add_header Referrer-Policy "same-origin";
    add_header X-Content-Type-Options "nosniff";
    add_header X-Frame-Options "DENY";
    add_header X-XSS-Protection "1; mode=block";

    # Upload limit for pictrs
    client_max_body_size 40M;

    # frontend
    location / {
      # The default ports:
      # lemmy_ui_port: 1235
      # lemmy_port: 8536

      set $proxpass "http://0.0.0.0:1234";
      if ($http_accept ~ "^application/.*$") {
        set $proxpass "http://0.0.0.0:8536";
      }
      if ($request_method = POST) {
        set $proxpass "http://0.0.0.0:8536";
      }
      proxy_pass $proxpass;

      rewrite ^(.+)/+$ $1 permanent;

      # Send actual client IP upstream
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header Host $host;

      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    # backend
    location ~ ^/(api|feeds|nodeinfo|.well-known) {
      proxy_pass http://0.0.0.0:8536;
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "upgrade";

      # Rate limit
      limit_req zone=u.fail_ratelimit burst=90 nodelay;

      # Add IP forwarding headers
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header Host $host;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    # backend
    location ~ ^/pictrs {
      proxy_cache lemmy_cache;
      proxy_pass http://0.0.0.0:8536;
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "upgrade";

      # Rate limit
      limit_req zone=u.fail_ratelimit burst=90 nodelay;

      # Add IP forwarding headers
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header Host $host;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

}