upstream postgrest {
   server localhost:3030;
   keepalive 64;
}

server {
    listen 80;
    listen [::]:80;
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name  sandcrawler-db.fatcat.wiki db.sandcrawler.org;

    ssl_certificate /etc/letsencrypt/live/sandcrawler-minio.fatcat.wiki/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/sandcrawler-minio.fatcat.wiki/privkey.pem;

    #add_header Content-Security-Policy "default-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'";
    add_header X-Frame-Options "SAMEORIGIN";       # 'always' if nginx > 1.7.5
    add_header X-Content-Type-Options "nosniff";   # 'always' if nginx > 1.7.5
    add_header X-Xss-Protection "1";
    # Enable STS with one year period (breaks http; optional)
    #add_header Strict-Transport-Security "max-age=31557600; includeSubDomains";

    error_log   /var/log/nginx/sandcrawler-errors.log;
    access_log  /dev/null;

    if ($scheme = http) {
        return 301 https://$server_name$request_uri;
    }

    location / {

        default_type  application/json;

        if ($request_method !~ "GET") {
            return 403;
            break;
        }

        proxy_redirect off;

        proxy_http_version 1.1;
        proxy_set_header  Connection "";
        proxy_set_header  X-Real-IP  $remote_addr;
        proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header  Host $http_host;

        proxy_pass http://postgrest/;
    }

    # support /endpoint/:id url style for sha1hex lookups
    location ~ "^/(file_meta|grobid|fatcat_file)/([a-f0-9]{40})$" {

        if ($request_method !~ "GET") {
            return 403;
            break;
        }

        # assuming an upstream named "postgrest"
	# doing this rewrite as part of the proxy_pass line itself didn't seem
	# to work, so doing a formal rewrite here
        rewrite "/([a-z_]+)/([a-f0-9]{40})" /$1?sha1hex=eq.$2 break;
        proxy_pass http://postgrest;

        # make the response singular
        #default_type  application/vnd.pgrst.object+json;
        proxy_set_header Accept "application/vnd.pgrst.object+json";

        proxy_http_version 1.1;
        proxy_set_header  Connection "";
        proxy_set_header  X-Real-IP  $remote_addr;
        proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    # Let's Encrypt SSL Certs
    location /.well-known/acme-challenge/ {
        root /var/www/letsencrypt;
        autoindex off;
    }
}