INSServer/frontend/index.java

package ins.frontend;

import ins.frontend.utils.WebApp;
import org.openautonomousconnection.protocol.packets.v1_0_1.beta.web.impl.resource.WebResourceResponsePacket;
import org.openautonomousconnection.protocol.versions.v1_0_1.beta.WebPacketFlags;
import org.openautonomousconnection.protocol.versions.v1_0_1.beta.WebPacketHeader;
import org.openautonomousconnection.webserver.api.Route;
import org.openautonomousconnection.webserver.api.WebPage;
import org.openautonomousconnection.webserver.api.WebPageContext;
import org.openautonomousconnection.webserver.utils.HeaderMaps;
import org.openautonomousconnection.webserver.utils.Html;

import java.util.Map;

/**
 * Landing page for INS registrar frontend (v1.0.1).
 */
@Route(path = "/index.html")
public final class index implements WebPage {

    @Override
    public WebResourceResponsePacket handle(WebPageContext ctx) {
        WebApp.init();

        String html = Html.page("OAC INS Registrar", """
                <div class="card">
                  <h2>OAC INS Registrar</h2>
                  <p class="muted">What you want to do?</p>
                  <div class="col"><a href="info.html">Info</a></div><br />
                  <div class="row">
                    <div class="col"><a href="login.html">Login</a></div>
                    <div class="col"><a href="register.html">Register</a></div>
                    <div class="col"><a href="dashboard.html">Dashboard</a></div>
                  </div>
                </div>
                """);

        byte[] body = Html.utf8(html);
        Map<String, String> headers = HeaderMaps.mutable();
        headers.put("content-length", String.valueOf(body.length));

        return new WebResourceResponsePacket(outHeader(ctx), 200, "text/html; charset=utf-8", headers, body, null);
    }

    private WebPacketHeader outHeader(WebPageContext ctx) {
        WebPacketHeader in = (ctx != null && ctx.request != null) ? ctx.request.getHeader() : null;
        if (in == null) {
            return new WebPacketHeader(0, 0, 0, 0, WebPacketFlags.RESOURCE, System.currentTimeMillis());
        }
        return new WebPacketHeader(
                in.getRequestId(),
                in.getTabId(),
                in.getPageId(),
                in.getFrameId(),
                in.getFlags() | WebPacketFlags.RESOURCE,
                System.currentTimeMillis()
        );
    }
}