# {{ ansible_managed }}
{% for vhost in nginx_vhosts %}

#####################################
## Begin vhost for {{ vhost.name }}
#####################################

{{ vhost.custom_pre }}

server {
{% if vhost.port is iterable %}
{% for port in vhost.port %}
  listen {{ port }};
{% endfor %}
{% else %}
  listen {{ vhost.port }};
{% endif %}
{% if vhost.ssl.enabled %}
{% if vhost.ssl.port is iterable %}
{% for port in vhost.ssl.port %}
  listen {{ port }} ssl http2;
{% endfor %}
{% else %}
  listen {{ vhost.ssl.port }} ssl http2;
{% endif %}

{% if vhost.ssl.cert is defined and vhost.ssl.key is defined %}
  ssl_certificate     {{ vhost.ssl.cert }};
  ssl_certificate_key {{ vhost.ssl.key }};
{% elif vhost.ssl.letsencrypt_cert is defined %}
  ssl_certificate     /var/lib/dehydrated/certificates/certs/{{ vhost.ssl.letsencrypt_cert }}/fullchain.pem;
  ssl_certificate_key /var/lib/dehydrated/certificates/certs/{{ vhost.ssl.letsencrypt_cert }}/privkey.pem;
{% elif nginx_auto_letsencrypt_cert %}
  ssl_certificate     /var/lib/dehydrated/certificates/certs/{{ vhost.name }}/fullchain.pem;
  ssl_certificate_key /var/lib/dehydrated/certificates/certs/{{ vhost.name }}/privkey.pem;
{% endif %}

{% if vhost.ssl.compat %}
  ssl_ciphers {{ nginx_ssl_ciphers_compat }};
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
{% else %}
  ssl_ciphers {{ nginx_ssl_ciphers_modern }};
  ssl_protocols TLSv1.2 TLSv1.3;
{% endif %}
{% endif %}

  server_name {{ vhost.name }} {{ vhost.aliases | join(' ') }};

  access_log /var/log/nginx/access.log {{ nginx_log_format + (vhost.auth is string and vhost.auth is search('^llng')) | ternary('_llng','') }};

{% if vhost.full_config is defined %}
{{ vhost.full_config | indent(2, true) }}
{% else %}

  root {{ vhost.document_root }};

{{ vhost.custom_begin | indent(2, true) }}

  client_max_body_size {{ vhost.max_body_size }};

{% if vhost.maintenance %}
  include /etc/nginx/ansible_conf.d/maintenance.inc;
{% endif %}

{% if vhost.acme_http %}
  include /etc/nginx/ansible_conf.d/acme.inc;
{% endif %}

  # Include a custom fragment. Can be used to insert ACME challenges support during
  # dehydrated hooks for example
  include /etc/nginx/ansible_conf.d/custom.inc;

{% if vhost.ssl.forced and vhost.ssl.enabled %}
  include /etc/nginx/ansible_conf.d/force_ssl.inc;
{% endif %}

{% if vhost.auth == 'llng' or vhost.auth == 'llng_basic' %}
  ## lmauth endpoint for llng authentication
  location = /lmauth {
    internal;
    include /etc/nginx/fastcgi_params;
    fastcgi_pass unix:/var/run/llng-fastcgi-server/llng-fastcgi.sock;
    # Drop post datas
    fastcgi_pass_request_body off;
    fastcgi_param CONTENT_LENGTH "";
    # Keep original hostname
    fastcgi_param HOST $http_host;
    # Keep original request (LLNG server will received /llauth)
    fastcgi_param X_ORIGINAL_URI  $request_uri;
{% if vhost.auth == 'llng_basic' %}
    # Use basic auth on this vhost
    fastcgi_param VHOSTTYPE AuthBasic;
{% endif %}
  }
{% endif %}

  if ($request_method !~ ^({{ vhost.allowed_methods | join('|') }})$ ) {
    return 405;
  }

  location {{ vhost.location }} {

{{ vhost.custom_location_begin | indent(4, True) }}

{% if vhost.redirect_aliases and vhost.aliases | length > 0 %}
    set $redirect_alias 0;
    if ($host != '{{ vhost.name }}'){
      set $redirect_alias 1;
    }
    # Only GET and HEAD should be redirected
    if ($request_method !~ ^(GET|HEAD)$){
      set $redirect_alias 0;
    }
    if ($redirect_alias = 1){
      rewrite ^/(.*)$ http{{ vhost.ssl.enabled | ternary('s','') }}://{{ vhost.name }}{% if vhost.ssl.enabled and vhost.ssl.port | int != 443 %}:{{ vhost.ssl.port }}{% elif not vhost.ssl.enabled and vhost.port | int != 80 %}:{{ vhost.port }}{% endif %}/$1 permanent;
    }
{% endif %}

{% if vhost.limits %}
    limit_req zone=limit_req_std burst=100 nodelay;
    limit_conn limit_conn_std 80;
{% endif %}

{% if vhost.perf %}
    include /etc/nginx/ansible_conf.d/perf.inc;
{% endif %}

{% for header in vhost.headers.keys() %}
{% if vhost.headers[header] != False %}
    add_header {{ header }} "{{ vhost.headers[header] }}";
{% endif %}
{% endfor %}

{% if vhost.csp %}
    add_header Content-Security-Policy "{{ vhost.csp + (vhost.csp is search('connect-src') and vhost.proxy.websocket) | ternary('', '; connect-src \'self\' wss://' + vhost.name) }}";
{% endif %}

{% if vhost.auth == 'llng' or vhost.auth == 'llng_basic' %}
    auth_request /lmauth;
    auth_request_set $lmremote_user $upstream_http_lm_remote_user;
    auth_request_set $lmlocation $upstream_http_location;
    auth_request_set $lmlocation $upstream_http_location;
    auth_request_set $cookie_value $upstream_http_set_cookie;
{% if vhost.auth != 'llng_basic' %}
    error_page 401 $lmlocation;
{% endif %}
{% if nginx_llng_headers.stat.exists %}
    include /etc/nginx/ansible_conf.d/llng_headers.inc;
{% endif %}
    fastcgi_param REMOTE_USER $lmremote_user;
{% elif vhost.auth == 'basic' and vhost.htpasswd_file is defined %}
    auth_basic "Authentication required for {{ vhost.name }}";
    auth_basic_user_file {{ vhost.htpasswd_file }};
{% endif %}

{% if vhost.proxy.backend is string %}

{% if vhost.proxy.cache %}
    include /etc/nginx/ansible_conf.d/cache.inc;
{% endif %}

    # Send info about the original request to the backend
{% for header in vhost.proxy.headers.keys() %}
{% if vhost.proxy.headers[header] != False %}
    proxy_set_header {{ header }} "{{ vhost.proxy.headers[header] }}";
{% endif %}
{% endfor %}

{% if vhost.proxy.websocket %}
    # Handle websocket proxying
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $connection_upgrade;
    proxy_http_version 1.1;
{% endif %}

    # Hide some headers sent by the backend
    proxy_hide_header X-Powered-By;
    proxy_hide_header Cache-Control;
    proxy_hide_header Pragma;
    proxy_hide_header Expires;
    proxy_hide_header Content-Security-Policy;
{% for header in vhost.headers.keys() %}
    proxy_hide_header {{ header }};
{% endfor %}

    # Set the timeout to read responses from the backend
    proxy_read_timeout {{ vhost.proxy.timeout }};

    # Enable Keep Alive to the backend
    proxy_socket_keepalive on;

    # Disable buffering large files
    proxy_max_temp_file_size 5m;

    # Proxy requests to the backend
    proxy_pass {{ vhost.proxy.backend }};
{% endif %}

{% if vhost.deny_ip | length > 0 %}
    # per vhost IP blacklist
{% for ip in vhost.deny_ip %}
    deny {{ ip }};
{% endfor %}

{% endif %}
{% if vhost.src_ip | length > 0 %}
    # per vhost IP restriction
{% for ip in vhost.src_ip | flatten %}
    allow {{ ip }};
{% endfor %}
    deny all;

{% endif %}
{{ vhost.custom_location_end | indent(4, True) }}

  }

  location = /RequestDenied {
    return 403;
  }

{% if vhost.location != '/' %}
  location / {
    return 403;
  }
{% endif %}

{{ vhost.custom_end | indent(2, true) }}

{% endif %}
}

#####################################
## End vhost for {{ vhost.name }}
#####################################

{% endfor %}