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frontend/node_modules/broadcast-channel/dist/lib/methods/cookies.js

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+/**
+ * if you really need this method,
+ * implement it
+ */
+"use strict";

frontend/node_modules/broadcast-channel/dist/lib/methods/indexed-db.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.getIdb = getIdb;
+exports.createDatabase = createDatabase;
+exports.writeMessage = writeMessage;
+exports.getAllMessages = getAllMessages;
+exports.getMessagesHigherThan = getMessagesHigherThan;
+exports.removeMessageById = removeMessageById;
+exports.getOldMessages = getOldMessages;
+exports.cleanOldMessages = cleanOldMessages;
+exports.create = create;
+exports.close = close;
+exports.postMessage = postMessage;
+exports.onMessage = onMessage;
+exports.canBeUsed = canBeUsed;
+exports.averageResponseTime = averageResponseTime;
+exports["default"] = exports.type = exports.microSeconds = void 0;
+
+var _util = require("../util.js");
+
+var _obliviousSet = require("oblivious-set");
+
+var _options = require("../options");
+
+/**
+ * this method uses indexeddb to store the messages
+ * There is currently no observerAPI for idb
+ * @link https://github.com/w3c/IndexedDB/issues/51
+ */
+var microSeconds = _util.microSeconds;
+exports.microSeconds = microSeconds;
+var DB_PREFIX = 'pubkey.broadcast-channel-0-';
+var OBJECT_STORE_ID = 'messages';
+var type = 'idb';
+exports.type = type;
+
+function getIdb() {
+  if (typeof indexedDB !== 'undefined') return indexedDB;
+
+  if (typeof window !== 'undefined') {
+    if (typeof window.mozIndexedDB !== 'undefined') return window.mozIndexedDB;
+    if (typeof window.webkitIndexedDB !== 'undefined') return window.webkitIndexedDB;
+    if (typeof window.msIndexedDB !== 'undefined') return window.msIndexedDB;
+  }
+
+  return false;
+}
+
+function createDatabase(channelName) {
+  var IndexedDB = getIdb(); // create table
+
+  var dbName = DB_PREFIX + channelName;
+  var openRequest = IndexedDB.open(dbName, 1);
+
+  openRequest.onupgradeneeded = function (ev) {
+    var db = ev.target.result;
+    db.createObjectStore(OBJECT_STORE_ID, {
+      keyPath: 'id',
+      autoIncrement: true
+    });
+  };
+
+  var dbPromise = new Promise(function (res, rej) {
+    openRequest.onerror = function (ev) {
+      return rej(ev);
+    };
+
+    openRequest.onsuccess = function () {
+      res(openRequest.result);
+    };
+  });
+  return dbPromise;
+}
+/**
+ * writes the new message to the database
+ * so other readers can find it
+ */
+
+
+function writeMessage(db, readerUuid, messageJson) {
+  var time = new Date().getTime();
+  var writeObject = {
+    uuid: readerUuid,
+    time: time,
+    data: messageJson
+  };
+  var transaction = db.transaction([OBJECT_STORE_ID], 'readwrite');
+  return new Promise(function (res, rej) {
+    transaction.oncomplete = function () {
+      return res();
+    };
+
+    transaction.onerror = function (ev) {
+      return rej(ev);
+    };
+
+    var objectStore = transaction.objectStore(OBJECT_STORE_ID);
+    objectStore.add(writeObject);
+  });
+}
+
+function getAllMessages(db) {
+  var objectStore = db.transaction(OBJECT_STORE_ID).objectStore(OBJECT_STORE_ID);
+  var ret = [];
+  return new Promise(function (res) {
+    objectStore.openCursor().onsuccess = function (ev) {
+      var cursor = ev.target.result;
+
+      if (cursor) {
+        ret.push(cursor.value); //alert("Name for SSN " + cursor.key + " is " + cursor.value.name);
+
+        cursor["continue"]();
+      } else {
+        res(ret);
+      }
+    };
+  });
+}
+
+function getMessagesHigherThan(db, lastCursorId) {
+  var objectStore = db.transaction(OBJECT_STORE_ID).objectStore(OBJECT_STORE_ID);
+  var ret = [];
+
+  function openCursor() {
+    // Occasionally Safari will fail on IDBKeyRange.bound, this
+    // catches that error, having it open the cursor to the first
+    // item. When it gets data it will advance to the desired key.
+    try {
+      var keyRangeValue = IDBKeyRange.bound(lastCursorId + 1, Infinity);
+      return objectStore.openCursor(keyRangeValue);
+    } catch (e) {
+      return objectStore.openCursor();
+    }
+  }
+
+  return new Promise(function (res) {
+    openCursor().onsuccess = function (ev) {
+      var cursor = ev.target.result;
+
+      if (cursor) {
+        if (cursor.value.id < lastCursorId + 1) {
+          cursor["continue"](lastCursorId + 1);
+        } else {
+          ret.push(cursor.value);
+          cursor["continue"]();
+        }
+      } else {
+        res(ret);
+      }
+    };
+  });
+}
+
+function removeMessageById(db, id) {
+  var request = db.transaction([OBJECT_STORE_ID], 'readwrite').objectStore(OBJECT_STORE_ID)["delete"](id);
+  return new Promise(function (res) {
+    request.onsuccess = function () {
+      return res();
+    };
+  });
+}
+
+function getOldMessages(db, ttl) {
+  var olderThen = new Date().getTime() - ttl;
+  var objectStore = db.transaction(OBJECT_STORE_ID).objectStore(OBJECT_STORE_ID);
+  var ret = [];
+  return new Promise(function (res) {
+    objectStore.openCursor().onsuccess = function (ev) {
+      var cursor = ev.target.result;
+
+      if (cursor) {
+        var msgObk = cursor.value;
+
+        if (msgObk.time < olderThen) {
+          ret.push(msgObk); //alert("Name for SSN " + cursor.key + " is " + cursor.value.name);
+
+          cursor["continue"]();
+        } else {
+          // no more old messages,
+          res(ret);
+          return;
+        }
+      } else {
+        res(ret);
+      }
+    };
+  });
+}
+
+function cleanOldMessages(db, ttl) {
+  return getOldMessages(db, ttl).then(function (tooOld) {
+    return Promise.all(tooOld.map(function (msgObj) {
+      return removeMessageById(db, msgObj.id);
+    }));
+  });
+}
+
+function create(channelName, options) {
+  options = (0, _options.fillOptionsWithDefaults)(options);
+  return createDatabase(channelName).then(function (db) {
+    var state = {
+      closed: false,
+      lastCursorId: 0,
+      channelName: channelName,
+      options: options,
+      uuid: (0, _util.randomToken)(),
+
+      /**
+       * emittedMessagesIds
+       * contains all messages that have been emitted before
+       * @type {ObliviousSet}
+       */
+      eMIs: new _obliviousSet.ObliviousSet(options.idb.ttl * 2),
+      // ensures we do not read messages in parrallel
+      writeBlockPromise: Promise.resolve(),
+      messagesCallback: null,
+      readQueuePromises: [],
+      db: db
+    };
+    /**
+     * Handle abrupt closes that do not originate from db.close().
+     * This could happen, for example, if the underlying storage is
+     * removed or if the user clears the database in the browser's
+     * history preferences.
+     */
+
+    db.onclose = function () {
+      state.closed = true;
+      if (options.idb.onclose) options.idb.onclose();
+    };
+    /**
+     * if service-workers are used,
+     * we have no 'storage'-event if they post a message,
+     * therefore we also have to set an interval
+     */
+
+
+    _readLoop(state);
+
+    return state;
+  });
+}
+
+function _readLoop(state) {
+  if (state.closed) return;
+  readNewMessages(state).then(function () {
+    return (0, _util.sleep)(state.options.idb.fallbackInterval);
+  }).then(function () {
+    return _readLoop(state);
+  });
+}
+
+function _filterMessage(msgObj, state) {
+  if (msgObj.uuid === state.uuid) return false; // send by own
+
+  if (state.eMIs.has(msgObj.id)) return false; // already emitted
+
+  if (msgObj.data.time < state.messagesCallbackTime) return false; // older then onMessageCallback
+
+  return true;
+}
+/**
+ * reads all new messages from the database and emits them
+ */
+
+
+function readNewMessages(state) {
+  // channel already closed
+  if (state.closed) return Promise.resolve(); // if no one is listening, we do not need to scan for new messages
+
+  if (!state.messagesCallback) return Promise.resolve();
+  return getMessagesHigherThan(state.db, state.lastCursorId).then(function (newerMessages) {
+    var useMessages = newerMessages
+    /**
+     * there is a bug in iOS where the msgObj can be undefined some times
+     * so we filter them out
+     * @link https://github.com/pubkey/broadcast-channel/issues/19
+     */
+    .filter(function (msgObj) {
+      return !!msgObj;
+    }).map(function (msgObj) {
+      if (msgObj.id > state.lastCursorId) {
+        state.lastCursorId = msgObj.id;
+      }
+
+      return msgObj;
+    }).filter(function (msgObj) {
+      return _filterMessage(msgObj, state);
+    }).sort(function (msgObjA, msgObjB) {
+      return msgObjA.time - msgObjB.time;
+    }); // sort by time
+
+    useMessages.forEach(function (msgObj) {
+      if (state.messagesCallback) {
+        state.eMIs.add(msgObj.id);
+        state.messagesCallback(msgObj.data);
+      }
+    });
+    return Promise.resolve();
+  });
+}
+
+function close(channelState) {
+  channelState.closed = true;
+  channelState.db.close();
+}
+
+function postMessage(channelState, messageJson) {
+  channelState.writeBlockPromise = channelState.writeBlockPromise.then(function () {
+    return writeMessage(channelState.db, channelState.uuid, messageJson);
+  }).then(function () {
+    if ((0, _util.randomInt)(0, 10) === 0) {
+      /* await (do not await) */
+      cleanOldMessages(channelState.db, channelState.options.idb.ttl);
+    }
+  });
+  return channelState.writeBlockPromise;
+}
+
+function onMessage(channelState, fn, time) {
+  channelState.messagesCallbackTime = time;
+  channelState.messagesCallback = fn;
+  readNewMessages(channelState);
+}
+
+function canBeUsed() {
+  if (_util.isNode) return false;
+  var idb = getIdb();
+  if (!idb) return false;
+  return true;
+}
+
+function averageResponseTime(options) {
+  return options.idb.fallbackInterval * 2;
+}
+
+var _default = {
+  create: create,
+  close: close,
+  onMessage: onMessage,
+  postMessage: postMessage,
+  canBeUsed: canBeUsed,
+  type: type,
+  averageResponseTime: averageResponseTime,
+  microSeconds: microSeconds
+};
+exports["default"] = _default;

frontend/node_modules/broadcast-channel/dist/lib/methods/localstorage.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.getLocalStorage = getLocalStorage;
+exports.storageKey = storageKey;
+exports.postMessage = postMessage;
+exports.addStorageEventListener = addStorageEventListener;
+exports.removeStorageEventListener = removeStorageEventListener;
+exports.create = create;
+exports.close = close;
+exports.onMessage = onMessage;
+exports.canBeUsed = canBeUsed;
+exports.averageResponseTime = averageResponseTime;
+exports["default"] = exports.type = exports.microSeconds = void 0;
+
+var _obliviousSet = require("oblivious-set");
+
+var _options = require("../options");
+
+var _util = require("../util");
+
+/**
+ * A localStorage-only method which uses localstorage and its 'storage'-event
+ * This does not work inside of webworkers because they have no access to locastorage
+ * This is basically implemented to support IE9 or your grandmothers toaster.
+ * @link https://caniuse.com/#feat=namevalue-storage
+ * @link https://caniuse.com/#feat=indexeddb
+ */
+var microSeconds = _util.microSeconds;
+exports.microSeconds = microSeconds;
+var KEY_PREFIX = 'pubkey.broadcastChannel-';
+var type = 'localstorage';
+/**
+ * copied from crosstab
+ * @link https://github.com/tejacques/crosstab/blob/master/src/crosstab.js#L32
+ */
+
+exports.type = type;
+
+function getLocalStorage() {
+  var localStorage;
+  if (typeof window === 'undefined') return null;
+
+  try {
+    localStorage = window.localStorage;
+    localStorage = window['ie8-eventlistener/storage'] || window.localStorage;
+  } catch (e) {// New versions of Firefox throw a Security exception
+    // if cookies are disabled. See
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=1028153
+  }
+
+  return localStorage;
+}
+
+function storageKey(channelName) {
+  return KEY_PREFIX + channelName;
+}
+/**
+* writes the new message to the storage
+* and fires the storage-event so other readers can find it
+*/
+
+
+function postMessage(channelState, messageJson) {
+  return new Promise(function (res) {
+    (0, _util.sleep)().then(function () {
+      var key = storageKey(channelState.channelName);
+      var writeObj = {
+        token: (0, _util.randomToken)(),
+        time: new Date().getTime(),
+        data: messageJson,
+        uuid: channelState.uuid
+      };
+      var value = JSON.stringify(writeObj);
+      getLocalStorage().setItem(key, value);
+      /**
+       * StorageEvent does not fire the 'storage' event
+       * in the window that changes the state of the local storage.
+       * So we fire it manually
+       */
+
+      var ev = document.createEvent('Event');
+      ev.initEvent('storage', true, true);
+      ev.key = key;
+      ev.newValue = value;
+      window.dispatchEvent(ev);
+      res();
+    });
+  });
+}
+
+function addStorageEventListener(channelName, fn) {
+  var key = storageKey(channelName);
+
+  var listener = function listener(ev) {
+    if (ev.key === key) {
+      fn(JSON.parse(ev.newValue));
+    }
+  };
+
+  window.addEventListener('storage', listener);
+  return listener;
+}
+
+function removeStorageEventListener(listener) {
+  window.removeEventListener('storage', listener);
+}
+
+function create(channelName, options) {
+  options = (0, _options.fillOptionsWithDefaults)(options);
+
+  if (!canBeUsed()) {
+    throw new Error('BroadcastChannel: localstorage cannot be used');
+  }
+
+  var uuid = (0, _util.randomToken)();
+  /**
+   * eMIs
+   * contains all messages that have been emitted before
+   * @type {ObliviousSet}
+   */
+
+  var eMIs = new _obliviousSet.ObliviousSet(options.localstorage.removeTimeout);
+  var state = {
+    channelName: channelName,
+    uuid: uuid,
+    eMIs: eMIs // emittedMessagesIds
+
+  };
+  state.listener = addStorageEventListener(channelName, function (msgObj) {
+    if (!state.messagesCallback) return; // no listener
+
+    if (msgObj.uuid === uuid) return; // own message
+
+    if (!msgObj.token || eMIs.has(msgObj.token)) return; // already emitted
+
+    if (msgObj.data.time && msgObj.data.time < state.messagesCallbackTime) return; // too old
+
+    eMIs.add(msgObj.token);
+    state.messagesCallback(msgObj.data);
+  });
+  return state;
+}
+
+function close(channelState) {
+  removeStorageEventListener(channelState.listener);
+}
+
+function onMessage(channelState, fn, time) {
+  channelState.messagesCallbackTime = time;
+  channelState.messagesCallback = fn;
+}
+
+function canBeUsed() {
+  if (_util.isNode) return false;
+  var ls = getLocalStorage();
+  if (!ls) return false;
+
+  try {
+    var key = '__broadcastchannel_check';
+    ls.setItem(key, 'works');
+    ls.removeItem(key);
+  } catch (e) {
+    // Safari 10 in private mode will not allow write access to local
+    // storage and fail with a QuotaExceededError. See
+    // https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API#Private_Browsing_Incognito_modes
+    return false;
+  }
+
+  return true;
+}
+
+function averageResponseTime() {
+  var defaultTime = 120;
+  var userAgent = navigator.userAgent.toLowerCase();
+
+  if (userAgent.includes('safari') && !userAgent.includes('chrome')) {
+    // safari is much slower so this time is higher
+    return defaultTime * 2;
+  }
+
+  return defaultTime;
+}
+
+var _default = {
+  create: create,
+  close: close,
+  onMessage: onMessage,
+  postMessage: postMessage,
+  canBeUsed: canBeUsed,
+  type: type,
+  averageResponseTime: averageResponseTime,
+  microSeconds: microSeconds
+};
+exports["default"] = _default;

frontend/node_modules/broadcast-channel/dist/lib/methods/native.js

@@ -0,0 +1,86 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.create = create;
+exports.close = close;
+exports.postMessage = postMessage;
+exports.onMessage = onMessage;
+exports.canBeUsed = canBeUsed;
+exports.averageResponseTime = averageResponseTime;
+exports["default"] = exports.type = exports.microSeconds = void 0;
+
+var _util = require("../util");
+
+var microSeconds = _util.microSeconds;
+exports.microSeconds = microSeconds;
+var type = 'native';
+exports.type = type;
+
+function create(channelName) {
+  var state = {
+    messagesCallback: null,
+    bc: new BroadcastChannel(channelName),
+    subFns: [] // subscriberFunctions
+
+  };
+
+  state.bc.onmessage = function (msg) {
+    if (state.messagesCallback) {
+      state.messagesCallback(msg.data);
+    }
+  };
+
+  return state;
+}
+
+function close(channelState) {
+  channelState.bc.close();
+  channelState.subFns = [];
+}
+
+function postMessage(channelState, messageJson) {
+  try {
+    channelState.bc.postMessage(messageJson, false);
+    return Promise.resolve();
+  } catch (err) {
+    return Promise.reject(err);
+  }
+}
+
+function onMessage(channelState, fn) {
+  channelState.messagesCallback = fn;
+}
+
+function canBeUsed() {
+  /**
+   * in the electron-renderer, isNode will be true even if we are in browser-context
+   * so we also check if window is undefined
+   */
+  if (_util.isNode && typeof window === 'undefined') return false;
+
+  if (typeof BroadcastChannel === 'function') {
+    if (BroadcastChannel._pubkey) {
+      throw new Error('BroadcastChannel: Do not overwrite window.BroadcastChannel with this module, this is not a polyfill');
+    }
+
+    return true;
+  } else return false;
+}
+
+function averageResponseTime() {
+  return 150;
+}
+
+var _default = {
+  create: create,
+  close: close,
+  onMessage: onMessage,
+  postMessage: postMessage,
+  canBeUsed: canBeUsed,
+  type: type,
+  averageResponseTime: averageResponseTime,
+  microSeconds: microSeconds
+};
+exports["default"] = _default;

frontend/node_modules/broadcast-channel/dist/lib/methods/simulate.js

@@ -0,0 +1,75 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.create = create;
+exports.close = close;
+exports.postMessage = postMessage;
+exports.onMessage = onMessage;
+exports.canBeUsed = canBeUsed;
+exports.averageResponseTime = averageResponseTime;
+exports["default"] = exports.type = exports.microSeconds = void 0;
+
+var _util = require("../util");
+
+var microSeconds = _util.microSeconds;
+exports.microSeconds = microSeconds;
+var type = 'simulate';
+exports.type = type;
+var SIMULATE_CHANNELS = new Set();
+
+function create(channelName) {
+  var state = {
+    name: channelName,
+    messagesCallback: null
+  };
+  SIMULATE_CHANNELS.add(state);
+  return state;
+}
+
+function close(channelState) {
+  SIMULATE_CHANNELS["delete"](channelState);
+}
+
+function postMessage(channelState, messageJson) {
+  return new Promise(function (res) {
+    return setTimeout(function () {
+      var channelArray = Array.from(SIMULATE_CHANNELS);
+      channelArray.filter(function (channel) {
+        return channel.name === channelState.name;
+      }).filter(function (channel) {
+        return channel !== channelState;
+      }).filter(function (channel) {
+        return !!channel.messagesCallback;
+      }).forEach(function (channel) {
+        return channel.messagesCallback(messageJson);
+      });
+      res();
+    }, 5);
+  });
+}
+
+function onMessage(channelState, fn) {
+  channelState.messagesCallback = fn;
+}
+
+function canBeUsed() {
+  return true;
+}
+
+function averageResponseTime() {
+  return 5;
+}
+
+var _default = {
+  create: create,
+  close: close,
+  onMessage: onMessage,
+  postMessage: postMessage,
+  canBeUsed: canBeUsed,
+  type: type,
+  averageResponseTime: averageResponseTime,
+  microSeconds: microSeconds
+};
+exports["default"] = _default;