teams-web-send/dist/tws.cjs.development.js

Post messages to Microsoft Teams directly from the browser!

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

function isIE() {
  var ua = window.navigator.userAgent;
  var msie = ua.indexOf('MSIE ');
  var trident = ua.indexOf('Trident');
  var edge = ua.indexOf('Edge');
  return msie > 0 || trident > 0 || edge > 0;
}

function prepareMessage(message) {
  return message.substring(0, message.lastIndexOf('}')).concat(',"trash": "');
}

function bootstrap(host) {
  var targetHost = host || document.body;
  var isIEBrowser = isIE();
  var sendForm = document.createElement('form');
  sendForm.style.display = 'none';
  sendForm.className = 'mstws-send-form';
  sendForm.method = 'POST';
  sendForm.enctype = 'text/plain';
  sendForm.target = 'mstws-send-frame';
  var sendInput = document.createElement('input');
  sendInput.type = 'text';
  sendInput.value = '"}';
  var sendFrame = document.createElement('iframe');
  sendFrame.tabIndex = -1;
  sendFrame.name = 'mstws-send-frame';
  var resolveResult;
  sendFrame.addEventListener('load', function () {
    if (!resolveResult) {
      return;
    }

    resolveResult(); // cleanup references

    resolveResult = null;
  });
  sendForm.appendChild(sendInput);
  sendForm.appendChild(sendFrame);
  targetHost.appendChild(sendForm);
  return function (webhookUrl, message) {
    return new Promise(function (resolve, reject) {
      try {
        sendForm.action = webhookUrl;
        var postData = prepareMessage(message);

        if (isIEBrowser) {
          postData = postData.replace(/'/g, "\\'").replace(/"/g, "'").replace(/\s\s+/g, '');
          sendInput.value = "'}";
        }

        sendInput.name = postData;
        sendForm.submit();
      } catch (e) {
        console.error(e);
        reject(new Error('Incorrectly formatted message.'));
      }

      resolveResult = resolve;
    });
  };
}

exports.bootstrap = bootstrap;
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