hostbbq
/
express-starter


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Privater Bereich</title>

    <link rel="stylesheet" href="../css/bootstrap.min.css" />
    <link rel="stylesheet" href="../css/styles.css" />
  </head>
  <body>
    <div class="container my-5">
      <h1>Privater Bereich</h1>
      <p class="alert alert-warning">Hier solltest du nur sein, wenn du dich davor eingeloggt hast</p>

      <h2>Kleine Chat App</h2>
      <p>(Inklusive XSRF-Token-Security)</p>
      <div class="chat-box">
        <div id="chat-messages"></div>
        <div class="row">
          <div class="col input-group">
            <input type="text" id="chat-input" class="form-control" />
            <button type="button" id="chat-submit" class="btn btn-outline-secondary" onclick="sendMessage()">Senden</button>
          </div>
        </div>
      </div>

      <h2>Logout</h2>
      <form method="POST" action="/auth/logout" enctype="application/x-www-form-urlencoded" class="login-form">
        <table border="0" cellpadding="0" cellspacing="0">
          <tr>
            <td colspan="2">
              <input type="submit" name="submit" value="Logout" />
            </td>
          </tr>
        </table>
      </form>
    </div>

    <script type="text/javascript" src="js/jquery.min.js"></script>
    <script type="text/javascript">
      var chat = {};
      $(function () {
        chat.container = $('#chat-messages');
        chat.input = $('#chat-input');
        chat.submitBtn = $('#chat-submit');

        chat.input.on('keyup', function (e) {
          if (e.keyCode === 13) {
            // Enter
            chat.submitBtn.click();
          }
        });

        fetchMessages();
      });

      function fetchMessages() {
        $.ajax({
          url: 'chat',
          method: 'GET',
          dataType: 'json',
          success: function (data, textStatus, xhr) {
            if (data && data.length > 0) {
              chat.messages = data;
              renderMessages();
            } else {
              chat.container.append('<p>There are no messages yet to display</p>');
              chat.messages = [];
            }
          },
          error: function (xhr, textStatus, errorMsg) {
            console.error(xhr, textStatus, errorMsg);
          }
        });
      }

      function renderMessages() {
        chat.container.empty();
        chat.messages.forEach(msg => renderMessage(msg));
      }

      function renderMessage(msg) {
        chat.container.append(
          '<div class="card chat-message">' +
            '<div class="card-body">' +
            '<h5 class="card-title">' +
            msg.author +
            '</h5>' +
            '<button class="btn btn-outline-danger btn-sm" onclick="deleteMessage(' +
            msg.id +
            ')">Delete</button>' +
            '<h6 class="card-subtitle mb-2 text-muted">' +
            msg.time +
            '</h6>' +
            '<p class="card-text">' +
            msg.text +
            '</p>' +
            '</div>' +
            '</div>'
        );
      }

      function sendMessage() {
        var text = chat.input.val();
        if (!text || text.trim().length == 0) return;

        var token = getXsrfTokenFromCookie();

        if (!token) {
          alert('Konnte XSRF-TOKEN Cookie nicht auslesen');
          return;
        }

        $.ajax({
          url: 'chat',
          method: 'POST',
          dataType: 'json',
          data: {
            text
          },
          headers: {
            'X-CSRF-Token': token
          },
          success: function (data, textStatus, xhr) {
            renderMessage(data);
            chat.input.val('');
          },
          error: function (xhr, textStatus, errorMsg) {
            console.error(xhr, textStatus, errorMsg);
            alert(errorMsg + ': ' + xhr.responseText);
          }
        });
      }

      function deleteMessage(id) {
        var token = getXsrfTokenFromCookie();
        if (!token) {
          alert('Konnte XSRF-TOKEN Cookie nicht auslesen');
          return;
        }

        $.ajax({
          url: 'chat/' + id,
          method: 'DELETE',
          dataType: 'json',
          headers: {
            'X-CSRF-Token': token
          },
          success: function (data, textStatus, xhr) {
            fetchMessages();
          },
          error: function (xhr, textStatus, errorMsg) {
            console.error(xhr, textStatus, errorMsg);
            alert(errorMsg + ': ' + xhr.responseText);
          }
        });
      }

      function getXsrfTokenFromCookie() {
        var regMatch = /XSRF-TOKEN=([^;]+).*$/.exec(document.cookie);

        if (!regMatch || !regMatch[1]) {
          return null;
        }

        return regMatch[1];
      }
    </script>
  </body>
</html>