overleaf/server-ce/nginx/clsi-nginx.conf

# keep in sync with clsi-startup.sh files
# keep in sync with clsi/nginx.conf
# Changes to the above:
#  - added debug header
#  - remove CORS rules, Server-CE/Server-Pro runs behind a single origin
#  - change /output path to /var/lib/overleaf/data/output

server {
  # Extra header for debugging.
  add_header 'X-Served-By' 'clsi-nginx' always;

  # Security-Headers
  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-XSS-Protection' '1; mode=block' always;

  listen 8080;
  server_name clsi-nginx;
  server_tokens off;
  access_log off;
  # Ignore symlinks possibly created by users
  disable_symlinks on;
  # enable compression for tex auxiliary files, but not for pdf files
  gzip on;
  gzip_types text/plain;
  gzip_proxied any;
  types {
      text/plain log blg aux stdout stderr;
      application/pdf pdf;
  }
  # handle output files for specific users
  location ~ ^/project/([0-9a-f]+)/user/([0-9a-f]+)/build/([0-9a-f-]+)/output/output\.([a-z]+)$ {
    alias /var/lib/overleaf/data/output/$1-$2/generated-files/$3/output.$4;
  }
  # handle .blg files for specific users
  location ~ ^/project/([0-9a-f]+)/user/([0-9a-f]+)/build/([0-9a-f-]+)/output/(.+)\.blg$ {
    alias /var/lib/overleaf/data/output/$1-$2/generated-files/$3/$4.blg;
  }
  # handle output files for anonymous users
  location ~ ^/project/([0-9a-f]+)/build/([0-9a-f-]+)/output/output\.([a-z]+)$ {
    alias /var/lib/overleaf/data/output/$1/generated-files/$2/output.$3;
  }
  # handle .blg files for anonymous users
  location ~ ^/project/([0-9a-f]+)/build/([0-9a-f-]+)/output/(.+)\.blg$ {
    alias /var/lib/overleaf/data/output/$1/generated-files/$2/$3.blg;
  }

  # PDF range for specific users
  location ~ ^/project/([0-9a-f]+)/user/([0-9a-f]+)/content/([0-9a-f-]+/[0-9a-f]+)$ {
    # Cache for one day
    expires 1d;
    alias /var/lib/overleaf/data/output/$1-$2/content/$3;
  }
  # PDF range for anonymous users
  location ~ ^/project/([0-9a-f]+)/content/([0-9a-f-]+/[0-9a-f]+)$ {
    # Cache for one day
    expires 1d;
    alias /var/lib/overleaf/data/output/$1/content/$2;
  }
}