cryptpad/nginx_cryptpad.conf.tmpl

server {
   listen 80;
   listen [::]:80;
   server_name @cryptpad-url@;
   return 301 https://$server_name$request_uri;
}

server {

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

   server_name @cryptpad-url@;

   ssl_certificate /var/lib/dehydrated/certs/@cryptpad-url@/fullchain.pem;
   ssl_certificate_key /var/lib/dehydrated/certs/@cryptpad-url@/privkey.pem;
   #ssl_trusted_certificate /var/lib/dehydrated/certs/@cryptpad-url@/fullchain.pem;

   # - Needed for (automated) updating certificate
   # -
   include snippets/letsencrypt-acme-challenge.conf;


   # Diffie-Hellman parameter for DHE ciphersuites, recommended 2048 bits
   #
   # To generate a dhparam.pem file, run in a terminal
   #    openssl dhparam -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:SSL:50m;
   ssl_session_timeout 10m;
   ssl_session_tickets off;


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

   # ECDHE better than DHE (faster)  ECDHE & DHE GCM better than CBC (attacks on AES)
   # Everything better than SHA1 (deprecated)
   #
   ssl_ciphers 'ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA';
   ssl_prefer_server_ciphers on;

   add_header Strict-Transport-Security "max-age=31536000" always;
   add_header X-XSS-Protection "1; mode=block";
   add_header X-Content-Type-Options nosniff;
   #add_header X-Frame-Options "SAMEORIGIN";

   root /var/www/cryptpad;
   index index.html;
   error_page 404 /customize.dist/404.html;

   if ($args ~ ver=) {
      set $cacheControl max-age=31536000;
   }
   # Will not set any header if it is emptystring
   #
   add_header Cache-Control $cacheControl;


   # - Does not work with CKEditor and OnlyOffice
   # -
   #set $styleSrc    "'unsafe-inline' 'self'";
   #set $scriptSrc   "'self' @cryptpad-url@";
   #set $connectSrc  "'self' https://@cryptpad-url@ wss://@cryptpad-url@ @cryptpad-url@ https://api.@cryptpad-url@ blob: @cryptpad-url@";
   #set $fontSrc     "'self' data: @cryptpad-url@";
   #set $imgSrc      "'self' data: * blob: @cryptpad-url@";
   #set $frameSrc    "'self' @cryptpad-url@ blob: @cryptpad-url@";
   #set $mediaSrc    "'self' data: * blob: @cryptpad-url@";
   #set $childSrc    "https://@cryptpad-url@";
   #set $workerSrc   "https://@cryptpad-url@";
   #
   #set $unsafe 0;
   #if ($uri = "/pad/inner.html") { set $unsafe 1; }
   #if ($uri = "/sheet/inner.html") { set $unsafe 1; }
   #if ($uri = "/common/onlyoffice/web-apps/apps/spreadsheeteditor/main/index.html") { set $unsafe 1; }
   #if ($host != sandbox.cryptpad.info) { set $unsafe 0; }
   #if ($unsafe) {
   #   set $scriptSrc "'self' 'unsafe-eval' 'unsafe-inline' @cryptpad-url@";
   #}


   # - Make CKEditor and OnlyOffice working
   # -
   # - See /var/www/cryptpad/config.js (contentSecurity,padContentSecurity, ooContentSecurity)
   # -
   set $styleSrc    "'unsafe-inline' 'self' @cryptpad-url@";
   set $scriptSrc   "'self' 'unsafe-eval' 'unsafe-inline' @cryptpad-url@";
   set $connectSrc  "'self' ws: wss: @cryptpad-url@";
   set $fontSrc     "'self' data: @cryptpad-url@";
   set $imgSrc      " * blob:";
   set $frameSrc    "*";
   set $mediaSrc    "'self' data: * blob: @cryptpad-url@";
   set $childSrc    *;
   set $workerSrc   "https://@cryptpad-url@";

   add_header Content-Security-Policy "default-src 'none'; child-src $childSrc; worker-src $workerSrc; media-src $mediaSrc; style-src $styleSrc; script-src $scriptSrc; connect-src $connectSrc; font-src $fontSrc; img-src $imgSrc; frame-src $frameSrc;";

   location ^~ /cryptpad_websocket {
      proxy_pass http://localhost:3000;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header Host $host;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

      # WebSocket support (nginx 1.4)
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection upgrade;
   }

   location ^~ /customize.dist/ {
      # This is needed in order to prevent infinite recursion between /customize/ and the root
   }
   location ^~ /customize/ {
      rewrite ^/customize/(.*)$ $1 break;
      try_files /customize/$uri /customize.dist/$uri;
   }

   location = /api/config {
      proxy_pass http://localhost:3000;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header Host $host;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   }

   location ^~ /blob/ {
      add_header Cache-Control max-age=31536000;
      try_files $uri =404;
   }

   location ^~ /block/ {
      add_header Cache-Control max-age=0;
      try_files $uri =404;
   }

   location ^~ /datastore/ {
      add_header Cache-Control max-age=0;
      try_files $uri =404;
   }

   location ~ ^/(register|login|settings|user|pad|drive|poll|slide|code|whiteboard|file|media|profile|contacts|todo|filepicker|debug|kanban|sheet)$ {
      rewrite ^(.*)$ $1/ redirect;
   }

   try_files /www/$uri /www/$uri/index.html /customize/$uri;

}