tus-js-client/lib.esm/browser/urlStorage.js

A pure JavaScript client for the tus resumable upload protocol

function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
var hasStorage = false;
try {
  // Note: localStorage does not exist in the Web Worker's context, so we must use window here.
  hasStorage = 'localStorage' in window;

  // Attempt to store and read entries from the local storage to detect Private
  // Mode on Safari on iOS (see #49)
  // If the key was not used before, we remove it from local storage again to
  // not cause confusion where the entry came from.
  var key = 'tusSupport';
  var originalValue = localStorage.getItem(key);
  localStorage.setItem(key, originalValue);
  if (originalValue === null) localStorage.removeItem(key);
} catch (e) {
  // If we try to access localStorage inside a sandboxed iframe, a SecurityError
  // is thrown. When in private mode on iOS Safari, a QuotaExceededError is
  // thrown (see #49)
  if (e.code === e.SECURITY_ERR || e.code === e.QUOTA_EXCEEDED_ERR) {
    hasStorage = false;
  } else {
    throw e;
  }
}
export var canStoreURLs = hasStorage;
export var WebStorageUrlStorage = /*#__PURE__*/function () {
  function WebStorageUrlStorage() {
    _classCallCheck(this, WebStorageUrlStorage);
  }
  return _createClass(WebStorageUrlStorage, [{
    key: "findAllUploads",
    value: function findAllUploads() {
      var results = this._findEntries('tus::');
      return Promise.resolve(results);
    }
  }, {
    key: "findUploadsByFingerprint",
    value: function findUploadsByFingerprint(fingerprint) {
      var results = this._findEntries("tus::".concat(fingerprint, "::"));
      return Promise.resolve(results);
    }
  }, {
    key: "removeUpload",
    value: function removeUpload(urlStorageKey) {
      localStorage.removeItem(urlStorageKey);
      return Promise.resolve();
    }
  }, {
    key: "addUpload",
    value: function addUpload(fingerprint, upload) {
      var id = Math.round(Math.random() * 1e12);
      var key = "tus::".concat(fingerprint, "::").concat(id);
      localStorage.setItem(key, JSON.stringify(upload));
      return Promise.resolve(key);
    }
  }, {
    key: "_findEntries",
    value: function _findEntries(prefix) {
      var results = [];
      for (var i = 0; i < localStorage.length; i++) {
        var _key = localStorage.key(i);
        if (_key.indexOf(prefix) !== 0) continue;
        try {
          var upload = JSON.parse(localStorage.getItem(_key));
          upload.urlStorageKey = _key;
          results.push(upload);
        } catch (_e) {
          // The JSON parse error is intentionally ignored here, so a malformed
          // entry in the storage cannot prevent an upload.
        }
      }
      return results;
    }
  }]);
}();