## Huginn
##
## Modified from nginx http version
## Modified from http://blog.phusion.nl/2012/04/21/tutorial-setting-up-gitlab-on-debian-6/
## Modified from https://raymii.org/s/tutorials/Strong_SSL_Security_On_nginx.html
## Modified from https://github.com/gitlabhq/gitlabhq/blob/master/lib/support/nginx/gitlab-ssl
##
## Lines starting with two hashes (##) are comments with information.
## Lines starting with one hash (#) are configuration parameters that can be uncommented.
##
###################################
##         configuration         ##
###################################
##
## See installation.md#using-https for additional HTTPS configuration details.

upstream huginn {
  server unix:/home/huginn/huginn/tmp/sockets/unicorn.socket fail_timeout=0;
}

## Redirects all HTTP traffic to the HTTPS host
server {
  listen 0.0.0.0:80;
  listen [::]:80 ipv6only=on default_server;
  server_name YOUR_SERVER_FQDN; ## Replace this with something like huginn.example.com
  server_tokens off; ## Don't show the nginx version number, a security best practice
  return 301 https://$server_name$request_uri;
  access_log  /var/log/nginx/huginn_access.log;
  error_log   /var/log/nginx/huginn_error.log;
}


## HTTPS host
server {
  listen 0.0.0.0:443 ssl;
  listen [::]:443 ipv6only=on ssl default_server;
  server_name YOUR_SERVER_FQDN; ## Replace this with something like huginn.example.com
  server_tokens off; ## Don't show the nginx version number, a security best practice
  root /home/huginn/huginn/public;

  ## Increase this if you want to upload large attachments
  ## Or if you want to accept large git objects over http
  client_max_body_size 20m;

  ## Strong SSL Security
  ## https://raymii.org/s/tutorials/Strong_SSL_Security_On_nginx.html & https://cipherli.st/
  ssl on;
  ssl_certificate /etc/nginx/ssl/huginn.crt;
  ssl_certificate_key /etc/nginx/ssl/huginn.key;

  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-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!CAMELLIA:!DES:!MD5:!PSK:!RC4';
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_prefer_server_ciphers on;
  ssl_session_cache shared:SSL:10m;
  ssl_session_timeout 5m;

  ## See app/controllers/application_controller.rb for headers set

  ## [Optional] If your certficate has OCSP, enable OCSP stapling to reduce the overhead and latency of running SSL.
  ## Replace with your ssl_trusted_certificate. For more info see:
  ## - https://medium.com/devops-programming/4445f4862461
  ## - https://www.ruby-forum.com/topic/4419319
  ## - https://www.digitalocean.com/community/tutorials/how-to-configure-ocsp-stapling-on-apache-and-nginx
  # ssl_stapling on;
  # ssl_stapling_verify on;
  # ssl_trusted_certificate /etc/nginx/ssl/stapling.trusted.crt;
  # resolver 208.67.222.222 208.67.222.220 valid=300s; # Can change to your DNS resolver if desired
  # resolver_timeout 5s;

  ## [Optional] Generate a stronger DHE parameter:
  ##   sudo openssl dhparam -out /etc/ssl/certs/dhparam.pem 4096
  ##
  # ssl_dhparam /etc/ssl/certs/dhparam.pem;

  ## Individual nginx logs for this huginn vhost
  access_log  /var/log/nginx/huginn_access.log;
  error_log   /var/log/nginx/huginn_error.log;

  location / {
    ## Serve static files from defined root folder.
    ## @huginn is a named location for the upstream fallback, see below.
    try_files $uri $uri/index.html $uri.html @huginn;
  }

  ## If a file, which is not found in the root folder is requested,
  ## then the proxy passes the request to the upsteam (huginn unicorn).
  location @huginn {
    ## If you use HTTPS make sure you disable gzip compression
    ## to be safe against BREACH attack.
    gzip off;

    proxy_read_timeout      300;
    proxy_connect_timeout   300;
    proxy_redirect          off;

    proxy_set_header    Host                $http_host;
    proxy_set_header    X-Real-IP           $remote_addr;
    proxy_set_header    X-Forwarded-Ssl     on;
    proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;
    proxy_set_header    X-Forwarded-Proto   $scheme;
    proxy_set_header    X-Frame-Options     SAMEORIGIN;

    proxy_pass http://huginn;
  }

  ## Enable gzip compression as per rails guide:
  ## http://guides.rubyonrails.org/asset_pipeline.html#gzip-compression
  ## WARNING: If you are using relative urls remove the block below
  ## See config/application.rb under "Relative url support" for the list of
  ## other files that need to be changed for relative url support
  location /assets/ {
    gzip_static on; # to serve pre-gzipped version
    expires max;
    add_header Cache-Control public;
  }

  error_page 502 /502.html;
}
