# --- <FULL-QUALIFIED-SITE-NAME>

# ---
# see: https://docs.nextcloud.com/server/latest/admin_manual/installation/nginx.html
# ---


upstream php-handler {
    server unix:/tmp/php-7.4-fpm.www.sock;
}

server {
    listen 80;
    listen [::]:80;
    server_name <FULL-QUALIFIED-SITE-NAME>;

    # Enforce HTTPS
    return 301 https://$server_name$request_uri;
}

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

   server_name <FULL-QUALIFIED-SITE-NAME>;

   # Include location directive for Let's Encrypt ACME Challenge
   #
   # Needed for (automated) updating certificate
   #
   include snippets/letsencrypt-acme-challenge.conf;


   # Use Mozilla's guidelines for SSL/TLS settings
   # https://mozilla.github.io/server-side-tls/ssl-config-generator/
   ssl_certificate     /var/lib/dehydrated/certs/<FULL-QUALIFIED-SITE-NAME>/fullchain.pem;
   ssl_certificate_key /var/lib/dehydrated/certs/<FULL-QUALIFIED-SITE-NAME>/privkey.pem;


   # Diffie-Hellman parameter for DHE ciphersuites, recommended 2048 bits
   #
   # To generate a dhparam.pem file, run in a terminal
   #    openssl dhparam -dsaparam -out /etc/nginx/ssl/dhparam.pem 2048
   #
   ssl_dhparam /etc/nginx/ssl/dhparam.pem;

   # Eable session resumption to improve https performance
   ssl_session_cache shared:MozSSL:50m;
   ssl_session_timeout 1d;
   ssl_session_tickets off;

   #ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # omit SSLv3 because of POODLE
   # omit SSLv3 because of POODLE
   # omit  TLSv1 TLSv1.1
   ssl_protocols TLSv1.2 TLSv1.3;

   # ECDHE better than DHE (faster)  ECDHE & DHE GCM better than CBC (attacks on AES)
   # Everything better than SHA1 (deprecated)
   #
   #ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA:!3DES';
   ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;

   ssl_prefer_server_ciphers off;

   # HSTS (ngx_http_headers_module is required) (15768000 seconds = 6 months)
   #
   # WARNING: Only add the preload option once you read about
   # the consequences in https://hstspreload.org/. This option
   # will add the domain to a hardcoded list that is shipped
   # in all major browsers and getting removed from this list
   # could take several months.
   add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload;" always;

   # OCSP stapling
   ssl_stapling on;
   ssl_stapling_verify on;

   # set max upload size
   client_max_body_size 512M;
   fastcgi_buffers 64 4K;

   # Enable gzip but do not remove ETag headers
   gzip on;
   gzip_vary on;
   gzip_comp_level 4;
   gzip_min_length 256;
   gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
   gzip_types application/atom+xml application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;

   # Pagespeed is not supported by Nextcloud, so if your server is built
   # with the `ngx_pagespeed` module, uncomment this line to disable it.
   #pagespeed off;

   # 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;

   # Path to the root of your installation
   root /var/www/<FULL-QUALIFIED-SITE-NAME>/htdocs;

   # Specify how to handle directories -- specifying `/index.php$request_uri`
   # here as the fallback means that Nginx always exhibits the desired behaviour
   # when a client requests a path that corresponds to a directory that exists
   # on the server. In particular, if that directory contains an index.php file,
   # that file is correctly served; if it doesn't, then the request is passed to
   # the front-end controller. This consistent behaviour means that we don't need
   # to specify custom rules for certain paths (e.g. images and other assets,
   # `/updater`, `/ocm-provider`, `/ocs-provider`), and thus
   # `try_files $uri $uri/ /index.php$request_uri`
   # always provides the desired behaviour.
   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 = /robots.txt {
      allow all;
      log_not_found off;
      access_log off;
   }

   # Make a regex exception for `/.well-known` so that clients can still
   # access it despite the existence of the regex rule
   # `location ~ /(\.|autotest|...)` which would otherwise handle requests
   # for `/.well-known`.
   location ^~ /.well-known {
      # The following 6 rules are borrowed from `.htaccess`

      location = /.well-known/carddav     { return 301 /remote.php/dav/; }
      location = /.well-known/caldav      { return 301 /remote.php/dav/; }
      # Anything else is dynamically handled by Nextcloud
      location ^~ /.well-known            { return 301 /index.php$uri; }

      try_files $uri $uri/ =404;
   }

   # 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; }

   # Ensure this block, which passes PHP files to the PHP process, is above the blocks
   # which handle static assets (as seen below). If this block is not declared first,
   # then Nginx will encounter an infinite rewriting loop when it prepends `/index.php`
   # to the URI, resulting in a HTTP 500 error response.
   location ~ \.php(?:$|/) {
      fastcgi_split_path_info ^(.+?\.php)(/.*)$;
      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 $path_info;
      fastcgi_param HTTPS on;

      fastcgi_param modHeadersAvailable true;         # Avoid sending the security headers twice
      fastcgi_param front_controller_active true;     # Enable pretty urls
      fastcgi_pass php-handler;

      fastcgi_intercept_errors on;
      fastcgi_request_buffering off;
   }

   location ~ \.(?:css|js|svg|gif)$ {
      try_files $uri /index.php$request_uri;
      expires 6M;         # Cache-Control policy borrowed from `.htaccess`
      access_log off;     # Optional: Don't log access to assets
   }

   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
   }

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