include ./resolvers/resolvers.conf;

server {
    listen 8880;

    # health check for k8s
    location /healthz {
      return 200;
    }
}

# if behind proxy passthrough X-Forwarded-Proto header
map $http_x_forwarded_proto $ingress_proto {
    ""       $scheme;
    default  $http_x_forwarded_proto;
}


server {
    listen 80 default_server;
    server_name _;
    proxy_buffering off;
    proxy_buffers 16 64k;
    proxy_buffer_size 64k;
    root /usr/share/nginx/html;
    index index.html index.htm;

    error_page 500 501 502 503 504 /50x.html;

    client_max_body_size 0;

    merge_slashes off;
    location = /50x.html {
        root /usr/share/nginx/html;
    }

    location / {
      root   /usr/share/nginx/html;
      index  index.html index.htm;
      try_files $uri /index.html;
    }

    location ~* /docs/(.*)$ {
      set $docs_url "${DOCS_URL}";

      if ($docs_url != "") {
        return 307 $docs_url$1;
      }

      root   /usr/share/nginx/html;
      index  index.html index.htm;
    }

    # serve replay service worker, RWP_BASE_URL set in Dockerfile
    location /replay/sw.js {
      add_header Content-Type application/javascript;
      return 200 'importScripts("${RWP_BASE_URL}sw.js");';
    }

    location /replay/ui.js {
      add_header Content-Type application/javascript;
      return 307 ${RWP_BASE_URL}ui.js;
    }

    # serve a 404 page for /replay/ path, as that should be taken over by RWP
    location /replay/ {
      default_type application/json;
      return 404 "{\"error\": \"placeholder_for_replay\"}";
    }

    # used by docker only: k8s deployment handles /api directly via ingress
    location /api/ {
      proxy_pass http://${BACKEND_HOST}:8000;
      proxy_set_header Host $http_host;
      proxy_set_header X-Forwarded-Proto $ingress_proto;
    }

    # used by docker only: k8s deployment handles /api directly via ingress
    location /api/orgs/import/json {
      proxy_pass http://${BACKEND_HOST}:8000;
      proxy_set_header Host $http_host;
      proxy_set_header X-Forwarded-Proto $ingress_proto;
      # for larger uploads to not timeout
      proxy_http_version 1.1;
      proxy_read_timeout 300;
      proxy_request_buffering off;
    }

    location ~* /watch/([^/]+)/([^/]+)/([^/]+)/ws {
      set $org $1;
      set $crawl $2;
      set $num $3;
      set $auth_bearer $arg_auth_bearer;
      set $svc_suffix ".crawler";
      set $fqdn_suffix "${CRAWLER_FQDN_SUFFIX}";

      auth_request  /access_check;

      proxy_pass http://crawl-$crawl-$num$svc_suffix$fqdn_suffix:9037/ws;
      proxy_set_header Host "localhost";

      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection $http_connection;
    }

    location = /access_check {
      internal;
      proxy_pass http://${BACKEND_HOST}:8000/api/orgs/$org/crawls/$crawl/access?auth_bearer=$auth_bearer;
      proxy_pass_request_body off;
      proxy_set_header Content-Length "";
    }

    # redirect to bundled build of novnc
    location ~* ^/browser/([^/]+)/core/rfb.js$ {
      absolute_redirect off;
      return 308 /js/novnc.js;
    }

    location ~* ^/browser/([^/]+)/ws$ {
      set $browserid $1;
      set $auth_bearer $arg_auth_bearer;
      set $org $arg_oid;
      set $fqdn_suffix "${CRAWLER_FQDN_SUFFIX}";

      auth_request  /access_check_profiles;

      proxy_pass http://browser-$browserid.browser$fqdn_suffix:6080/websockify;
      proxy_set_header Host "localhost";

      proxy_send_timeout 10m;
      proxy_read_timeout 10m;

      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection $http_connection;
    }

    location ~* ^/browser/([^/]+)/$ {
      set $browserid $1;
      set $auth_bearer $arg_auth_bearer;
      set $org $arg_oid;
      set $fqdn_suffix "${CRAWLER_FQDN_SUFFIX}";

      auth_request  /access_check_profiles;

      proxy_pass http://browser-$browserid.browser$fqdn_suffix:9223/vnc/;
      proxy_set_header Host "localhost";
    }

    location = /access_check_profiles {
      internal;
      proxy_pass http://${BACKEND_HOST}:8000/api/orgs/$org/profiles/browser/$browserid/access?auth_bearer=$auth_bearer;
      proxy_pass_request_body off;
      proxy_set_header Content-Length "";
    }

    include ./includes/*.conf;
}
