# {{ ansible_managed }}
# commit: {{ lookup('pipe', 'git rev-parse --short HEAD') }}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name {{ collabora_domain }};

    ##
    # SSL
    ##
    ssl_session_cache  builtin:1000  shared:SSL:10m;
    ssl_session_timeout 1d;
    ssl_session_tickets off;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
    ssl_prefer_server_ciphers on;
    ssl_dhparam {{ ssl_dir }}/dhparams.pem;
    ssl_ecdh_curve secp384r1;
    ssl_certificate {{ certs_dir }}/{{ collabora_domain | get_cert_domain }}/cert.pem;
    ssl_certificate_key {{ certs_dir }}/{{ collabora_domain | get_cert_domain }}/key.pem;
    
    ##
    # OCSP Stapling
    ##
    ssl_stapling on;
    ssl_stapling_verify on;
    resolver {{ dns_resolvers }} valid=300s;
    ssl_trusted_certificate {{ certs_dir }}/{{ collabora_domain | get_cert_domain }}/cert.pem;

    ##
    # HSTS
    ##
    add_header Strict-Transport-Security "max-age=15552000 includeSubDomains" always;
    set $upstream_collabora http://127.0.0.1:{{ collabora_port }};

    location / {
        proxy_set_header Host $http_host;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Ssl on;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Server $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-XSS-Protection "1; mode=block";
        proxy_set_header 'Referrer-Policy' 'origin';
        proxy_set_header X-Content-Type-Options nosniff;
        
        proxy_pass $upstream_collabora;
        
        client_max_body_size 500M;
    }
    
    error_page 404 /404.html;
      location = /40x.html {
    }

    error_page 500 502 503 504 /50x.html;
      location = /50x.html {
    }

    # static files
    location ^~ /browser {
        proxy_pass $upstream_collabora;
        proxy_set_header Host $http_host;
    }

    # WOPI discovery URL
    location ^~ /hosting/discovery {
        proxy_pass $upstream_collabora;
        proxy_set_header Host $http_host;
    }

    # Capabilities
    location ^~ /hosting/capabilities {
        proxy_pass $upstream_collabora;
        proxy_set_header Host $http_host;
    }

    # main websocket
    location ~ ^/cool/(.*)/ws$ {
        proxy_pass $upstream_collabora;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
        proxy_set_header Host $http_host;
        proxy_read_timeout 36000s;
    }

    # download, presentation and image upload
    location ~ ^/(c|l)ool {
      proxy_pass $upstream_collabora;
      proxy_set_header Host $http_host;
    }

    # Admin Console websocket
    location ^~ /cool/adminws {
        proxy_pass $upstream_collabora;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
        proxy_set_header Host $http_host;
        proxy_read_timeout 36000s;
    }
}

server {
    if ($host = {{ collabora_domain }}) {
        return 301 https://$host$request_uri;
    }
    
    listen 80;
    listen [::]:80;
    server_name {{ collabora_domain }};
    
    location / { 
        return 301 https://$host$request_uri; 
    }
}