nixos-configs/devices/nos/modules/arion/nextcloud/nginx.conf

user  www-data;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;

events {
    worker_connections  1024;
}

http {

    upstream backend {
      server app-server:9000;
      #server unix:/var/run/php/php7.4-fpm.sock;
    }

    # Set the `immutable` cache control options only for assets with a cache busting `v` argument
    map $arg_v $asset_immutable {
    "" "";
    default "immutable";
    }

    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    map $http_host $this_host {
        "" $host;
        default $http_host;
    }

    map $http_x_forwarded_proto $the_scheme {
        default $http_x_forwarded_proto;
        "" $scheme;
    }

    map $http_x_forwarded_host $the_host {
       default $http_x_forwarded_host;
       "" $this_host;
    }

    server {
        listen 80;
	    # The below allows for being behind a reverse proxy and allowing the Nextcloud app to connect
        server_tokens off;

        # Add headers to serve security related headers
        add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload;";
        # HTTP response headers borrowed from Nextcloud `.htaccess`
        add_header Referrer-Policy                      "no-referrer"   always;
        add_header X-Content-Type-Options               "nosniff"       always;
        add_header X-Download-Options                   "noopen"        always;
        add_header X-Frame-Options                      "SAMEORIGIN"    always;
        add_header X-Permitted-Cross-Domain-Policies    "none"          always;
        add_header X-Robots-Tag                         "none"          always;
        add_header X-XSS-Protection                     "1; mode=block" always;

	    # Remove X-Powered-By, which is an information leak
        fastcgi_hide_header X-Powered-By;

        root /var/www/html;
        client_max_body_size 10G; # 0=unlimited - set max upload size
        fastcgi_buffers 64 4K;
        client_body_buffer_size 512k;

        gzip off;

        index index.php index.html /index.php$request_uri;

        # Rule borrowed from `.htaccess` to handle Microsoft DAV clients
        location = / {
        if ( $http_user_agent ~ ^DavClnt ) {
                return 302 /remote.php/webdav/$is_args$args;
            }
        }

        location ^~ /.well-known {

            location = /.well-known/carddav { return 301 /remote.php/dav/; }
            location = /.well-known/caldav  { return 301 /remote.php/dav/; }
            #location = /.well-known/webfinger { return 301 /index.php/.well-known/webfinger/; }
            #location = /.well-known/nodeinfo { return 301 /index.php/.well-known/nodeinfo/; }}

            location /.well-known/acme-challenge    { try_files $uri $uri/ =404; }
            location /.well-known/pki-validation    { try_files $uri $uri/ =404; }

            # Let Nextcloud's API for `/.well-known` URIs handle all other
            # requests by passing them to the front-end controller.
            return 301 /index.php$request_uri;
        }

        location = /robots.txt {
            allow all;
            log_not_found off;
            access_log off;
        }

        # Rules borrowed from `.htaccess` to hide certain paths from clients
        location ~ ^/(?:build|tests|config|lib|3rdparty|templates|data)(?:$|/)  { return 404; }
        location ~ ^/(?:\.|autotest|occ|issue|indie|db_|console)                { return 404; }

	location ~* ^/ds-vpath/ {
		rewrite /ds-vpath/(.*) /$1  break;
                proxy_pass http://onlyoffice-document-server;
                proxy_redirect     off;

                client_max_body_size 10G;

                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";

                proxy_set_header Host $http_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-Host $the_host/ds-vpath;
                proxy_set_header X-Forwarded-Proto $the_scheme;
        }

        location ~ \.php(?:$|/) {
            # Required for legacy support
            rewrite ^/(?!index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|oc[ms]-provider\/.+|.+\/richdocumentscode\/proxy) /index.php$request_uri;

            fastcgi_split_path_info ^(.+?\.php)(/.*)$;
            set $path_info $fastcgi_path_info;

            try_files $fastcgi_script_name =404;

            include fastcgi_params;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            fastcgi_param PATH_INFO $fastcgi_path_info;
            fastcgi_param HTTPS off;

            fastcgi_param modHeadersAvailable true; #Avoid sending the security headers twice
            fastcgi_param front_controller_active true;
            fastcgi_pass backend;

            fastcgi_intercept_errors on;
            fastcgi_request_buffering off;

            fastcgi_max_temp_file_size 0;
        }

        location ~ \.(?:css|js|svg|gif|png|jpg|ico|wasm|tflite|map)$ {
            try_files $uri /index.php$request_uri;
            add_header Cache-Control "public, max-age=15778463, $asset_immutable";
            access_log off;     # Optional: Don't log access to assets

            location ~ \.wasm$ {
                default_type application/wasm;
            }
        }

        location ~ \.woff2?$ {
            try_files $uri /index.php$request_uri;
            expires 7d;         # Cache-Control policy borrowed from `.htaccess`
            access_log off;     # Optional: Don't log access to assets
        }

        # Rule borrowed from `.htaccess`
        location /remote {
            return 301 /remote.php$request_uri;
        }

        location / {
            try_files $uri $uri/ /index.php$request_uri;
        }
    }
}