Inital build

frontend/node_modules/tus-js-client/LICENSE

@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 tus - Resumable File Uploads
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+

frontend/node_modules/tus-js-client/README.md

@@ -0,0 +1,72 @@
+# tus-js-client
+
+<img alt="Tus logo" src="https://raw.githubusercontent.com/tus/tus.io/main/public/images/tus1.png?raw=true" width="30%" align="right" />
+
+> **tus** is a protocol based on HTTP for _resumable file uploads_. Resumable
+> means that an upload can be interrupted at any moment and can be resumed without
+> re-uploading the previous data again. An interruption may happen willingly, if
+> the user wants to pause, or by accident in case of an network issue or server
+> outage.
+
+tus-js-client is a pure **JavaScript** client for the [tus resumable upload protocol](http://tus.io) and can be used inside **browsers**, **Node.js**,
+**React Native** and **Apache Cordova** applications.
+
+**Protocol version:** 1.0.0
+
+This branch contains tus-js-client v4. If you are looking for the previous major release, after which [breaking changes](https://github.com/tus/tus-js-client/releases/tag/v4.0.0) have been introduced, please look at the [v3.1.3 tag](https://github.com/tus/tus-js-client/tree/v3.1.3).
+
+## Example
+
+```js
+input.addEventListener('change', function (e) {
+  // Get the selected file from the input element
+  var file = e.target.files[0]
+
+  // Create a new tus upload
+  var upload = new tus.Upload(file, {
+    endpoint: 'http://localhost:1080/files/',
+    retryDelays: [0, 3000, 5000, 10000, 20000],
+    metadata: {
+      filename: file.name,
+      filetype: file.type,
+    },
+    onError: function (error) {
+      console.log('Failed because: ' + error)
+    },
+    onProgress: function (bytesUploaded, bytesTotal) {
+      var percentage = ((bytesUploaded / bytesTotal) * 100).toFixed(2)
+      console.log(bytesUploaded, bytesTotal, percentage + '%')
+    },
+    onSuccess: function () {
+      console.log('Download %s from %s', upload.file.name, upload.url)
+    },
+  })
+
+  // Check if there are any previous uploads to continue.
+  upload.findPreviousUploads().then(function (previousUploads) {
+    // Found previous uploads so we select the first one.
+    if (previousUploads.length) {
+      upload.resumeFromPreviousUpload(previousUploads[0])
+    }
+
+    // Start the upload
+    upload.start()
+  })
+})
+```
+
+## Documentation
+
+- [Installation & Requirements](/docs/installation.md)
+- [Usage & Examples](/docs/usage.md)
+- [API Reference](/docs/api.md)
+- [Contribution Guidelines](/docs/contributing.md)
+- [FAQ & Common issues](/docs/faq.md)
+
+## Build status
+
+[![Actions Status](https://github.com/tus/tus-js-client/workflows/CI/badge.svg)](https://github.com/tus/tus-js-client/actions)
+
+## License
+
+This project is licensed under the MIT license, see `LICENSE`.

frontend/node_modules/tus-js-client/lib.es5/browser/fileReader.js

@@ -0,0 +1,450 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _isReactNative = _interopRequireDefault(require("./isReactNative.js"));
+var _uriToBlob = _interopRequireDefault(require("./uriToBlob.js"));
+var _FileSource = _interopRequireDefault(require("./sources/FileSource.js"));
+var _StreamSource = _interopRequireDefault(require("./sources/StreamSource.js"));
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+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);
+}
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+}
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+    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 FileReader = exports.default = /*#__PURE__*/function () {
+  function FileReader() {
+    _classCallCheck(this, FileReader);
+  }
+  return _createClass(FileReader, [{
+    key: "openFile",
+    value: function () {
+      var _openFile = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee(input, chunkSize) {
+        var blob;
+        return _regeneratorRuntime().wrap(function _callee$(_context) {
+          while (1) switch (_context.prev = _context.next) {
+            case 0:
+              if (!((0, _isReactNative.default)() && input && typeof input.uri !== 'undefined')) {
+                _context.next = 11;
+                break;
+              }
+              _context.prev = 1;
+              _context.next = 4;
+              return (0, _uriToBlob.default)(input.uri);
+            case 4:
+              blob = _context.sent;
+              return _context.abrupt("return", new _FileSource.default(blob));
+            case 8:
+              _context.prev = 8;
+              _context.t0 = _context["catch"](1);
+              throw new Error("tus: cannot fetch `file.uri` as Blob, make sure the uri is correct and accessible. ".concat(_context.t0));
+            case 11:
+              if (!(typeof input.slice === 'function' && typeof input.size !== 'undefined')) {
+                _context.next = 13;
+                break;
+              }
+              return _context.abrupt("return", Promise.resolve(new _FileSource.default(input)));
+            case 13:
+              if (!(typeof input.read === 'function')) {
+                _context.next = 18;
+                break;
+              }
+              chunkSize = Number(chunkSize);
+              if (Number.isFinite(chunkSize)) {
+                _context.next = 17;
+                break;
+              }
+              return _context.abrupt("return", Promise.reject(new Error('cannot create source for stream without a finite value for the `chunkSize` option')));
+            case 17:
+              return _context.abrupt("return", Promise.resolve(new _StreamSource.default(input, chunkSize)));
+            case 18:
+              return _context.abrupt("return", Promise.reject(new Error('source object may only be an instance of File, Blob, or Reader in this environment')));
+            case 19:
+            case "end":
+              return _context.stop();
+          }
+        }, _callee, null, [[1, 8]]);
+      }));
+      function openFile(_x, _x2) {
+        return _openFile.apply(this, arguments);
+      }
+      return openFile;
+    }()
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.es5/browser/fileSignature.js

@@ -0,0 +1,40 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = fingerprint;
+var _isReactNative = _interopRequireDefault(require("./isReactNative.js"));
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+// TODO: Differenciate between input types
+
+/**
+ * Generate a fingerprint for a file which will be used the store the endpoint
+ *
+ * @param {File} file
+ * @param {Object} options
+ * @param {Function} callback
+ */
+function fingerprint(file, options) {
+  if ((0, _isReactNative.default)()) {
+    return Promise.resolve(reactNativeFingerprint(file, options));
+  }
+  return Promise.resolve(['tus-br', file.name, file.type, file.size, file.lastModified, options.endpoint].join('-'));
+}
+function reactNativeFingerprint(file, options) {
+  var exifHash = file.exif ? hashCode(JSON.stringify(file.exif)) : 'noexif';
+  return ['tus-rn', file.name || 'noname', file.size || 'nosize', exifHash, options.endpoint].join('/');
+}
+function hashCode(str) {
+  // from https://stackoverflow.com/a/8831937/151666
+  var hash = 0;
+  if (str.length === 0) {
+    return hash;
+  }
+  for (var i = 0; i < str.length; i++) {
+    var _char = str.charCodeAt(i);
+    hash = (hash << 5) - hash + _char;
+    hash &= hash; // Convert to 32bit integer
+  }
+  return hash;
+}

frontend/node_modules/tus-js-client/lib.es5/browser/httpStack.js

@@ -0,0 +1,166 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+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 XHRHttpStack = exports.default = /*#__PURE__*/function () {
+  function XHRHttpStack() {
+    _classCallCheck(this, XHRHttpStack);
+  }
+  return _createClass(XHRHttpStack, [{
+    key: "createRequest",
+    value: function createRequest(method, url) {
+      return new Request(method, url);
+    }
+  }, {
+    key: "getName",
+    value: function getName() {
+      return 'XHRHttpStack';
+    }
+  }]);
+}();
+var Request = /*#__PURE__*/function () {
+  function Request(method, url) {
+    _classCallCheck(this, Request);
+    this._xhr = new XMLHttpRequest();
+    this._xhr.open(method, url, true);
+    this._method = method;
+    this._url = url;
+    this._headers = {};
+  }
+  return _createClass(Request, [{
+    key: "getMethod",
+    value: function getMethod() {
+      return this._method;
+    }
+  }, {
+    key: "getURL",
+    value: function getURL() {
+      return this._url;
+    }
+  }, {
+    key: "setHeader",
+    value: function setHeader(header, value) {
+      this._xhr.setRequestHeader(header, value);
+      this._headers[header] = value;
+    }
+  }, {
+    key: "getHeader",
+    value: function getHeader(header) {
+      return this._headers[header];
+    }
+  }, {
+    key: "setProgressHandler",
+    value: function setProgressHandler(progressHandler) {
+      // Test support for progress events before attaching an event listener
+      if (!('upload' in this._xhr)) {
+        return;
+      }
+      this._xhr.upload.onprogress = function (e) {
+        if (!e.lengthComputable) {
+          return;
+        }
+        progressHandler(e.loaded);
+      };
+    }
+  }, {
+    key: "send",
+    value: function send() {
+      var _this = this;
+      var body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+      return new Promise(function (resolve, reject) {
+        _this._xhr.onload = function () {
+          resolve(new Response(_this._xhr));
+        };
+        _this._xhr.onerror = function (err) {
+          reject(err);
+        };
+        _this._xhr.send(body);
+      });
+    }
+  }, {
+    key: "abort",
+    value: function abort() {
+      this._xhr.abort();
+      return Promise.resolve();
+    }
+  }, {
+    key: "getUnderlyingObject",
+    value: function getUnderlyingObject() {
+      return this._xhr;
+    }
+  }]);
+}();
+var Response = /*#__PURE__*/function () {
+  function Response(xhr) {
+    _classCallCheck(this, Response);
+    this._xhr = xhr;
+  }
+  return _createClass(Response, [{
+    key: "getStatus",
+    value: function getStatus() {
+      return this._xhr.status;
+    }
+  }, {
+    key: "getHeader",
+    value: function getHeader(header) {
+      return this._xhr.getResponseHeader(header);
+    }
+  }, {
+    key: "getBody",
+    value: function getBody() {
+      return this._xhr.responseText;
+    }
+  }, {
+    key: "getUnderlyingObject",
+    value: function getUnderlyingObject() {
+      return this._xhr;
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.es5/browser/index.js

@@ -0,0 +1,200 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+Object.defineProperty(exports, "DefaultHttpStack", {
+  enumerable: true,
+  get: function () {
+    return _httpStack.default;
+  }
+});
+Object.defineProperty(exports, "DetailedError", {
+  enumerable: true,
+  get: function () {
+    return _error.default;
+  }
+});
+exports.Upload = void 0;
+Object.defineProperty(exports, "canStoreURLs", {
+  enumerable: true,
+  get: function () {
+    return _urlStorage.canStoreURLs;
+  }
+});
+exports.defaultOptions = void 0;
+Object.defineProperty(exports, "enableDebugLog", {
+  enumerable: true,
+  get: function () {
+    return _logger.enableDebugLog;
+  }
+});
+exports.isSupported = void 0;
+var _error = _interopRequireDefault(require("../error.js"));
+var _logger = require("../logger.js");
+var _noopUrlStorage = _interopRequireDefault(require("../noopUrlStorage.js"));
+var _upload = _interopRequireDefault(require("../upload.js"));
+var _fileReader = _interopRequireDefault(require("./fileReader.js"));
+var _fileSignature = _interopRequireDefault(require("./fileSignature.js"));
+var _httpStack = _interopRequireDefault(require("./httpStack.js"));
+var _urlStorage = require("./urlStorage.js");
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+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 _callSuper(t, o, e) {
+  return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e));
+}
+function _possibleConstructorReturn(self, call) {
+  if (call && (_typeof(call) === "object" || typeof call === "function")) {
+    return call;
+  } else if (call !== void 0) {
+    throw new TypeError("Derived constructors may only return object or undefined");
+  }
+  return _assertThisInitialized(self);
+}
+function _assertThisInitialized(self) {
+  if (self === void 0) {
+    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+  }
+  return self;
+}
+function _isNativeReflectConstruct() {
+  try {
+    var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
+  } catch (t) {}
+  return (_isNativeReflectConstruct = function _isNativeReflectConstruct() {
+    return !!t;
+  })();
+}
+function _getPrototypeOf(o) {
+  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) {
+    return o.__proto__ || Object.getPrototypeOf(o);
+  };
+  return _getPrototypeOf(o);
+}
+function _inherits(subClass, superClass) {
+  if (typeof superClass !== "function" && superClass !== null) {
+    throw new TypeError("Super expression must either be null or a function");
+  }
+  subClass.prototype = Object.create(superClass && superClass.prototype, {
+    constructor: {
+      value: subClass,
+      writable: true,
+      configurable: true
+    }
+  });
+  Object.defineProperty(subClass, "prototype", {
+    writable: false
+  });
+  if (superClass) _setPrototypeOf(subClass, superClass);
+}
+function _setPrototypeOf(o, p) {
+  _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) {
+    o.__proto__ = p;
+    return o;
+  };
+  return _setPrototypeOf(o, p);
+}
+function ownKeys(e, r) {
+  var t = Object.keys(e);
+  if (Object.getOwnPropertySymbols) {
+    var o = Object.getOwnPropertySymbols(e);
+    r && (o = o.filter(function (r) {
+      return Object.getOwnPropertyDescriptor(e, r).enumerable;
+    })), t.push.apply(t, o);
+  }
+  return t;
+}
+function _objectSpread(e) {
+  for (var r = 1; r < arguments.length; r++) {
+    var t = null != arguments[r] ? arguments[r] : {};
+    r % 2 ? ownKeys(Object(t), !0).forEach(function (r) {
+      _defineProperty(e, r, t[r]);
+    }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) {
+      Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r));
+    });
+  }
+  return e;
+}
+function _defineProperty(obj, key, value) {
+  key = _toPropertyKey(key);
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+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 defaultOptions = exports.defaultOptions = _objectSpread(_objectSpread({}, _upload.default.defaultOptions), {}, {
+  httpStack: new _httpStack.default(),
+  fileReader: new _fileReader.default(),
+  urlStorage: _urlStorage.canStoreURLs ? new _urlStorage.WebStorageUrlStorage() : new _noopUrlStorage.default(),
+  fingerprint: _fileSignature.default
+});
+var Upload = exports.Upload = /*#__PURE__*/function (_BaseUpload) {
+  function Upload() {
+    var file = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    _classCallCheck(this, Upload);
+    options = _objectSpread(_objectSpread({}, defaultOptions), options);
+    return _callSuper(this, Upload, [file, options]);
+  }
+  _inherits(Upload, _BaseUpload);
+  return _createClass(Upload, null, [{
+    key: "terminate",
+    value: function terminate(url) {
+      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+      options = _objectSpread(_objectSpread({}, defaultOptions), options);
+      return _upload.default.terminate(url, options);
+    }
+  }]);
+}(_upload.default); // Note: We don't reference `window` here because these classes also exist in a Web Worker's context.
+var isSupported = exports.isSupported = typeof XMLHttpRequest === 'function' && typeof Blob === 'function' && typeof Blob.prototype.slice === 'function';

frontend/node_modules/tus-js-client/lib.es5/browser/isReactNative.js

@@ -0,0 +1,10 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var isReactNative = function isReactNative() {
+  return typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative';
+};
+var _default = exports.default = isReactNative;

frontend/node_modules/tus-js-client/lib.es5/browser/sources/FileSource.js

@@ -0,0 +1,84 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _isCordova = _interopRequireDefault(require("./isCordova.js"));
+var _readAsByteArray = _interopRequireDefault(require("./readAsByteArray.js"));
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+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 FileSource = exports.default = /*#__PURE__*/function () {
+  // Make this.size a method
+  function FileSource(file) {
+    _classCallCheck(this, FileSource);
+    this._file = file;
+    this.size = file.size;
+  }
+  return _createClass(FileSource, [{
+    key: "slice",
+    value: function slice(start, end) {
+      // In Apache Cordova applications, a File must be resolved using
+      // FileReader instances, see
+      // https://cordova.apache.org/docs/en/8.x/reference/cordova-plugin-file/index.html#read-a-file
+      if ((0, _isCordova.default)()) {
+        return (0, _readAsByteArray.default)(this._file.slice(start, end));
+      }
+      var value = this._file.slice(start, end);
+      var done = end >= this.size;
+      return Promise.resolve({
+        value: value,
+        done: done
+      });
+    }
+  }, {
+    key: "close",
+    value: function close() {
+      // Nothing to do here since we don't need to release any resources.
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.es5/browser/sources/StreamSource.js

@@ -0,0 +1,150 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+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);
+}
+function len(blobOrArray) {
+  if (blobOrArray === undefined) return 0;
+  if (blobOrArray.size !== undefined) return blobOrArray.size;
+  return blobOrArray.length;
+}
+
+/*
+  Typed arrays and blobs don't have a concat method.
+  This function helps StreamSource accumulate data to reach chunkSize.
+*/
+function concat(a, b) {
+  if (a.concat) {
+    // Is `a` an Array?
+    return a.concat(b);
+  }
+  if (a instanceof Blob) {
+    return new Blob([a, b], {
+      type: a.type
+    });
+  }
+  if (a.set) {
+    // Is `a` a typed array?
+    var c = new a.constructor(a.length + b.length);
+    c.set(a);
+    c.set(b, a.length);
+    return c;
+  }
+  throw new Error('Unknown data type');
+}
+var StreamSource = exports.default = /*#__PURE__*/function () {
+  function StreamSource(reader) {
+    _classCallCheck(this, StreamSource);
+    this._buffer = undefined;
+    this._bufferOffset = 0;
+    this._reader = reader;
+    this._done = false;
+  }
+  return _createClass(StreamSource, [{
+    key: "slice",
+    value: function slice(start, end) {
+      if (start < this._bufferOffset) {
+        return Promise.reject(new Error("Requested data is before the reader's current offset"));
+      }
+      return this._readUntilEnoughDataOrDone(start, end);
+    }
+  }, {
+    key: "_readUntilEnoughDataOrDone",
+    value: function _readUntilEnoughDataOrDone(start, end) {
+      var _this = this;
+      var hasEnoughData = end <= this._bufferOffset + len(this._buffer);
+      if (this._done || hasEnoughData) {
+        var value = this._getDataFromBuffer(start, end);
+        var done = value == null ? this._done : false;
+        return Promise.resolve({
+          value: value,
+          done: done
+        });
+      }
+      return this._reader.read().then(function (_ref) {
+        var value = _ref.value,
+          done = _ref.done;
+        if (done) {
+          _this._done = true;
+        } else if (_this._buffer === undefined) {
+          _this._buffer = value;
+        } else {
+          _this._buffer = concat(_this._buffer, value);
+        }
+        return _this._readUntilEnoughDataOrDone(start, end);
+      });
+    }
+  }, {
+    key: "_getDataFromBuffer",
+    value: function _getDataFromBuffer(start, end) {
+      // Remove data from buffer before `start`.
+      // Data might be reread from the buffer if an upload fails, so we can only
+      // safely delete data when it comes *before* what is currently being read.
+      if (start > this._bufferOffset) {
+        this._buffer = this._buffer.slice(start - this._bufferOffset);
+        this._bufferOffset = start;
+      }
+      // If the buffer is empty after removing old data, all data has been read.
+      var hasAllDataBeenRead = len(this._buffer) === 0;
+      if (this._done && hasAllDataBeenRead) {
+        return null;
+      }
+      // We already removed data before `start`, so we just return the first
+      // chunk from the buffer.
+      return this._buffer.slice(0, end - start);
+    }
+  }, {
+    key: "close",
+    value: function close() {
+      if (this._reader.cancel) {
+        this._reader.cancel();
+      }
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.es5/browser/sources/isCordova.js

@@ -0,0 +1,10 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var isCordova = function isCordova() {
+  return typeof window !== 'undefined' && (typeof window.PhoneGap !== 'undefined' || typeof window.Cordova !== 'undefined' || typeof window.cordova !== 'undefined');
+};
+var _default = exports.default = isCordova;

frontend/node_modules/tus-js-client/lib.es5/browser/sources/readAsByteArray.js

@@ -0,0 +1,26 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = readAsByteArray;
+/**
+ * readAsByteArray converts a File object to a Uint8Array.
+ * This function is only used on the Apache Cordova platform.
+ * See https://cordova.apache.org/docs/en/latest/reference/cordova-plugin-file/index.html#read-a-file
+ */
+function readAsByteArray(chunk) {
+  return new Promise(function (resolve, reject) {
+    var reader = new FileReader();
+    reader.onload = function () {
+      var value = new Uint8Array(reader.result);
+      resolve({
+        value: value
+      });
+    };
+    reader.onerror = function (err) {
+      reject(err);
+    };
+    reader.readAsArrayBuffer(chunk);
+  });
+}

frontend/node_modules/tus-js-client/lib.es5/browser/uriToBlob.js

@@ -0,0 +1,26 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = uriToBlob;
+/**
+ * uriToBlob resolves a URI to a Blob object. This is used for
+ * React Native to retrieve a file (identified by a file://
+ * URI) as a blob.
+ */
+function uriToBlob(uri) {
+  return new Promise(function (resolve, reject) {
+    var xhr = new XMLHttpRequest();
+    xhr.responseType = 'blob';
+    xhr.onload = function () {
+      var blob = xhr.response;
+      resolve(blob);
+    };
+    xhr.onerror = function (err) {
+      reject(err);
+    };
+    xhr.open('GET', uri);
+    xhr.send();
+  });
+}

frontend/node_modules/tus-js-client/lib.es5/browser/urlStorage.js

@@ -0,0 +1,125 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.canStoreURLs = exports.WebStorageUrlStorage = void 0;
+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;
+  }
+}
+var canStoreURLs = exports.canStoreURLs = hasStorage;
+var WebStorageUrlStorage = exports.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;
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.es5/error.js

@@ -0,0 +1,174 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+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 _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);
+}
+function _classCallCheck(instance, Constructor) {
+  if (!(instance instanceof Constructor)) {
+    throw new TypeError("Cannot call a class as a function");
+  }
+}
+function _callSuper(t, o, e) {
+  return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e));
+}
+function _possibleConstructorReturn(self, call) {
+  if (call && (_typeof(call) === "object" || typeof call === "function")) {
+    return call;
+  } else if (call !== void 0) {
+    throw new TypeError("Derived constructors may only return object or undefined");
+  }
+  return _assertThisInitialized(self);
+}
+function _assertThisInitialized(self) {
+  if (self === void 0) {
+    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+  }
+  return self;
+}
+function _inherits(subClass, superClass) {
+  if (typeof superClass !== "function" && superClass !== null) {
+    throw new TypeError("Super expression must either be null or a function");
+  }
+  subClass.prototype = Object.create(superClass && superClass.prototype, {
+    constructor: {
+      value: subClass,
+      writable: true,
+      configurable: true
+    }
+  });
+  Object.defineProperty(subClass, "prototype", {
+    writable: false
+  });
+  if (superClass) _setPrototypeOf(subClass, superClass);
+}
+function _wrapNativeSuper(Class) {
+  var _cache = typeof Map === "function" ? new Map() : undefined;
+  _wrapNativeSuper = function _wrapNativeSuper(Class) {
+    if (Class === null || !_isNativeFunction(Class)) return Class;
+    if (typeof Class !== "function") {
+      throw new TypeError("Super expression must either be null or a function");
+    }
+    if (typeof _cache !== "undefined") {
+      if (_cache.has(Class)) return _cache.get(Class);
+      _cache.set(Class, Wrapper);
+    }
+    function Wrapper() {
+      return _construct(Class, arguments, _getPrototypeOf(this).constructor);
+    }
+    Wrapper.prototype = Object.create(Class.prototype, {
+      constructor: {
+        value: Wrapper,
+        enumerable: false,
+        writable: true,
+        configurable: true
+      }
+    });
+    return _setPrototypeOf(Wrapper, Class);
+  };
+  return _wrapNativeSuper(Class);
+}
+function _construct(t, e, r) {
+  if (_isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
+  var o = [null];
+  o.push.apply(o, e);
+  var p = new (t.bind.apply(t, o))();
+  return r && _setPrototypeOf(p, r.prototype), p;
+}
+function _isNativeReflectConstruct() {
+  try {
+    var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
+  } catch (t) {}
+  return (_isNativeReflectConstruct = function _isNativeReflectConstruct() {
+    return !!t;
+  })();
+}
+function _isNativeFunction(fn) {
+  try {
+    return Function.toString.call(fn).indexOf("[native code]") !== -1;
+  } catch (e) {
+    return typeof fn === "function";
+  }
+}
+function _setPrototypeOf(o, p) {
+  _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) {
+    o.__proto__ = p;
+    return o;
+  };
+  return _setPrototypeOf(o, p);
+}
+function _getPrototypeOf(o) {
+  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) {
+    return o.__proto__ || Object.getPrototypeOf(o);
+  };
+  return _getPrototypeOf(o);
+}
+var DetailedError = /*#__PURE__*/function (_Error) {
+  function DetailedError(message) {
+    var _this;
+    var causingErr = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
+    var req = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
+    var res = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+    _classCallCheck(this, DetailedError);
+    _this = _callSuper(this, DetailedError, [message]);
+    _this.originalRequest = req;
+    _this.originalResponse = res;
+    _this.causingError = causingErr;
+    if (causingErr != null) {
+      message += ", caused by ".concat(causingErr.toString());
+    }
+    if (req != null) {
+      var requestId = req.getHeader('X-Request-ID') || 'n/a';
+      var method = req.getMethod();
+      var url = req.getURL();
+      var status = res ? res.getStatus() : 'n/a';
+      var body = res ? res.getBody() || '' : 'n/a';
+      message += ", originated from request (method: ".concat(method, ", url: ").concat(url, ", response code: ").concat(status, ", response text: ").concat(body, ", request id: ").concat(requestId, ")");
+    }
+    _this.message = message;
+    return _this;
+  }
+  _inherits(DetailedError, _Error);
+  return _createClass(DetailedError);
+}( /*#__PURE__*/_wrapNativeSuper(Error));
+var _default = exports.default = DetailedError;

frontend/node_modules/tus-js-client/lib.es5/logger.js

@@ -0,0 +1,15 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.enableDebugLog = enableDebugLog;
+exports.log = log;
+var isEnabled = false;
+function enableDebugLog() {
+  isEnabled = true;
+}
+function log(msg) {
+  if (!isEnabled) return;
+  console.log(msg);
+}

frontend/node_modules/tus-js-client/lib.es5/node/fileReader.js

@@ -0,0 +1,81 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _fs = require("fs");
+var _isStream = _interopRequireDefault(require("is-stream"));
+var _BufferSource = _interopRequireDefault(require("./sources/BufferSource.js"));
+var _FileSource = _interopRequireDefault(require("./sources/FileSource.js"));
+var _StreamSource = _interopRequireDefault(require("./sources/StreamSource.js"));
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+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 FileReader = exports.default = /*#__PURE__*/function () {
+  function FileReader() {
+    _classCallCheck(this, FileReader);
+  }
+  return _createClass(FileReader, [{
+    key: "openFile",
+    value: function openFile(input, chunkSize) {
+      if (Buffer.isBuffer(input)) {
+        return Promise.resolve(new _BufferSource.default(input));
+      }
+      if (input instanceof _fs.ReadStream && input.path != null) {
+        return (0, _FileSource.default)(input);
+      }
+      if (_isStream.default.readable(input)) {
+        chunkSize = Number(chunkSize);
+        if (!Number.isFinite(chunkSize)) {
+          return Promise.reject(new Error('cannot create source for stream without a finite value for the `chunkSize` option; specify a chunkSize to control the memory consumption'));
+        }
+        return Promise.resolve(new _StreamSource.default(input));
+      }
+      return Promise.reject(new Error('source object may only be an instance of Buffer or Readable in this environment'));
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.es5/node/fileSignature.js

@@ -0,0 +1,43 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = fingerprint;
+var _crypto = require("crypto");
+var fs = _interopRequireWildcard(require("fs"));
+var path = _interopRequireWildcard(require("path"));
+function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
+function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
+/**
+ * Generate a fingerprint for a file which will be used the store the endpoint
+ *
+ * @param {File} file
+ * @param {Object} options
+ */
+function fingerprint(file, options) {
+  if (Buffer.isBuffer(file)) {
+    // create MD5 hash for buffer type
+    var blockSize = 64 * 1024; // 64kb
+    var content = file.slice(0, Math.min(blockSize, file.length));
+    var hash = (0, _crypto.createHash)('md5').update(content).digest('hex');
+    var ret = ['node-buffer', hash, file.length, options.endpoint].join('-');
+    return Promise.resolve(ret);
+  }
+  if (file instanceof fs.ReadStream && file.path != null) {
+    return new Promise(function (resolve, reject) {
+      var name = path.resolve(file.path);
+      fs.stat(file.path, function (err, info) {
+        if (err) {
+          reject(err);
+          return;
+        }
+        var ret = ['node-file', name, info.size, info.mtime.getTime(), options.endpoint].join('-');
+        resolve(ret);
+      });
+    });
+  }
+
+  // fingerprint cannot be computed for file input type
+  return Promise.resolve(null);
+}

frontend/node_modules/tus-js-client/lib.es5/node/httpStack.js

@@ -0,0 +1,364 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var http = _interopRequireWildcard(require("http"));
+var https = _interopRequireWildcard(require("https"));
+var _stream = require("stream");
+var _url = require("url");
+var _lodash = _interopRequireDefault(require("lodash.throttle"));
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
+function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
+function _callSuper(t, o, e) {
+  return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e));
+}
+function _possibleConstructorReturn(self, call) {
+  if (call && (_typeof(call) === "object" || typeof call === "function")) {
+    return call;
+  } else if (call !== void 0) {
+    throw new TypeError("Derived constructors may only return object or undefined");
+  }
+  return _assertThisInitialized(self);
+}
+function _assertThisInitialized(self) {
+  if (self === void 0) {
+    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+  }
+  return self;
+}
+function _isNativeReflectConstruct() {
+  try {
+    var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
+  } catch (t) {}
+  return (_isNativeReflectConstruct = function _isNativeReflectConstruct() {
+    return !!t;
+  })();
+}
+function _getPrototypeOf(o) {
+  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) {
+    return o.__proto__ || Object.getPrototypeOf(o);
+  };
+  return _getPrototypeOf(o);
+}
+function _inherits(subClass, superClass) {
+  if (typeof superClass !== "function" && superClass !== null) {
+    throw new TypeError("Super expression must either be null or a function");
+  }
+  subClass.prototype = Object.create(superClass && superClass.prototype, {
+    constructor: {
+      value: subClass,
+      writable: true,
+      configurable: true
+    }
+  });
+  Object.defineProperty(subClass, "prototype", {
+    writable: false
+  });
+  if (superClass) _setPrototypeOf(subClass, superClass);
+}
+function _setPrototypeOf(o, p) {
+  _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) {
+    o.__proto__ = p;
+    return o;
+  };
+  return _setPrototypeOf(o, p);
+}
+function ownKeys(e, r) {
+  var t = Object.keys(e);
+  if (Object.getOwnPropertySymbols) {
+    var o = Object.getOwnPropertySymbols(e);
+    r && (o = o.filter(function (r) {
+      return Object.getOwnPropertyDescriptor(e, r).enumerable;
+    })), t.push.apply(t, o);
+  }
+  return t;
+}
+function _objectSpread(e) {
+  for (var r = 1; r < arguments.length; r++) {
+    var t = null != arguments[r] ? arguments[r] : {};
+    r % 2 ? ownKeys(Object(t), !0).forEach(function (r) {
+      _defineProperty(e, r, t[r]);
+    }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) {
+      Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r));
+    });
+  }
+  return e;
+}
+function _defineProperty(obj, key, value) {
+  key = _toPropertyKey(key);
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+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);
+}
+// The url.parse method is superseeded by the url.URL constructor,
+// but it is still included in Node.js
+
+var NodeHttpStack = exports.default = /*#__PURE__*/function () {
+  function NodeHttpStack() {
+    var requestOptions = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+    _classCallCheck(this, NodeHttpStack);
+    this._requestOptions = requestOptions;
+  }
+  return _createClass(NodeHttpStack, [{
+    key: "createRequest",
+    value: function createRequest(method, url) {
+      return new Request(method, url, this._requestOptions);
+    }
+  }, {
+    key: "getName",
+    value: function getName() {
+      return 'NodeHttpStack';
+    }
+  }]);
+}();
+var Request = /*#__PURE__*/function () {
+  function Request(method, url, options) {
+    _classCallCheck(this, Request);
+    this._method = method;
+    this._url = url;
+    this._headers = {};
+    this._request = null;
+    this._progressHandler = function () {};
+    this._requestOptions = options || {};
+  }
+  return _createClass(Request, [{
+    key: "getMethod",
+    value: function getMethod() {
+      return this._method;
+    }
+  }, {
+    key: "getURL",
+    value: function getURL() {
+      return this._url;
+    }
+  }, {
+    key: "setHeader",
+    value: function setHeader(header, value) {
+      this._headers[header] = value;
+    }
+  }, {
+    key: "getHeader",
+    value: function getHeader(header) {
+      return this._headers[header];
+    }
+  }, {
+    key: "setProgressHandler",
+    value: function setProgressHandler(progressHandler) {
+      this._progressHandler = progressHandler;
+    }
+  }, {
+    key: "send",
+    value: function send() {
+      var _this = this;
+      var body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+      return new Promise(function (resolve, reject) {
+        var options = _objectSpread(_objectSpread(_objectSpread({}, (0, _url.parse)(_this._url)), _this._requestOptions), {}, {
+          method: _this._method,
+          headers: _objectSpread(_objectSpread({}, _this._requestOptions.headers || {}), _this._headers)
+        });
+        if (body !== null && body !== void 0 && body.size) {
+          options.headers['Content-Length'] = body.size;
+        }
+        var httpModule = options.protocol === 'https:' ? https : http;
+        _this._request = httpModule.request(options);
+        var req = _this._request;
+        req.on('response', function (res) {
+          var resChunks = [];
+          res.on('data', function (data) {
+            resChunks.push(data);
+          });
+          res.on('end', function () {
+            var responseText = Buffer.concat(resChunks).toString('utf8');
+            resolve(new Response(res, responseText));
+          });
+        });
+        req.on('error', function (err) {
+          reject(err);
+        });
+        if (body instanceof _stream.Readable) {
+          // Readable stream are piped through a PassThrough instance, which
+          // counts the number of bytes passed through. This is used, for example,
+          // when an fs.ReadStream is provided to tus-js-client.
+          body.pipe(new ProgressEmitter(_this._progressHandler)).pipe(req);
+        } else if (body instanceof Uint8Array) {
+          // For Buffers and Uint8Arrays (in Node.js all buffers are instances of Uint8Array),
+          // we write chunks of the buffer to the stream and use that to track the progress.
+          // This is used when either a Buffer or a normal readable stream is provided
+          // to tus-js-client.
+          writeBufferToStreamWithProgress(req, body, _this._progressHandler);
+        } else {
+          req.end(body);
+        }
+      });
+    }
+  }, {
+    key: "abort",
+    value: function abort() {
+      if (this._request !== null) this._request.abort();
+      return Promise.resolve();
+    }
+  }, {
+    key: "getUnderlyingObject",
+    value: function getUnderlyingObject() {
+      return this._request;
+    }
+  }]);
+}();
+var Response = /*#__PURE__*/function () {
+  function Response(res, body) {
+    _classCallCheck(this, Response);
+    this._response = res;
+    this._body = body;
+  }
+  return _createClass(Response, [{
+    key: "getStatus",
+    value: function getStatus() {
+      return this._response.statusCode;
+    }
+  }, {
+    key: "getHeader",
+    value: function getHeader(header) {
+      return this._response.headers[header.toLowerCase()];
+    }
+  }, {
+    key: "getBody",
+    value: function getBody() {
+      return this._body;
+    }
+  }, {
+    key: "getUnderlyingObject",
+    value: function getUnderlyingObject() {
+      return this._response;
+    }
+  }]);
+}(); // ProgressEmitter is a simple PassThrough-style transform stream which keeps
+// track of the number of bytes which have been piped through it and will
+// invoke the `onprogress` function whenever new number are available.
+var ProgressEmitter = /*#__PURE__*/function (_Transform) {
+  function ProgressEmitter(onprogress) {
+    var _this2;
+    _classCallCheck(this, ProgressEmitter);
+    _this2 = _callSuper(this, ProgressEmitter);
+
+    // The _onprogress property will be invoked, whenever a chunk is piped
+    // through this transformer. Since chunks are usually quite small (64kb),
+    // these calls can occur frequently, especially when you have a good
+    // connection to the remote server. Therefore, we are throtteling them to
+    // prevent accessive function calls.
+    _this2._onprogress = (0, _lodash.default)(onprogress, 100, {
+      leading: true,
+      trailing: false
+    });
+    _this2._position = 0;
+    return _this2;
+  }
+  _inherits(ProgressEmitter, _Transform);
+  return _createClass(ProgressEmitter, [{
+    key: "_transform",
+    value: function _transform(chunk, _encoding, callback) {
+      this._position += chunk.length;
+      this._onprogress(this._position);
+      callback(null, chunk);
+    }
+  }]);
+}(_stream.Transform); // writeBufferToStreamWithProgress writes chunks from `source` (either a
+// Buffer or Uint8Array) to the readable stream `stream`.
+// The size of the chunk depends on the stream's highWaterMark to fill the
+// stream's internal buffer as best as possible.
+// If the internal buffer is full, the callback `onprogress` will be invoked
+// to notify about the write progress. Writing will be resumed once the internal
+// buffer is empty, as indicated by the emitted `drain` event.
+// See https://nodejs.org/docs/latest/api/stream.html#buffering for more details
+// on the buffering behavior of streams.
+var writeBufferToStreamWithProgress = function writeBufferToStreamWithProgress(stream, source, onprogress) {
+  onprogress = (0, _lodash.default)(onprogress, 100, {
+    leading: true,
+    trailing: false
+  });
+  var offset = 0;
+  function writeNextChunk() {
+    // Take at most the amount of bytes from highWaterMark. This should fill the streams
+    // internal buffer already.
+    var chunkSize = Math.min(stream.writableHighWaterMark, source.length - offset);
+
+    // Note: We use subarray instead of slice because it works without copying data for
+    // Buffers and Uint8Arrays.
+    var chunk = source.subarray(offset, offset + chunkSize);
+    offset += chunk.length;
+
+    // `write` returns true if the internal buffer is not full and we should write more.
+    // If the stream is destroyed because the request is aborted, it will return false
+    // and no 'drain' event is emitted, so won't continue writing data.
+    var canContinue = stream.write(chunk);
+    if (!canContinue) {
+      // If the buffer is full, wait for the 'drain' event to write more data.
+      stream.once('drain', writeNextChunk);
+      onprogress(offset);
+    } else if (offset < source.length) {
+      // If there's still data to write and the buffer is not full, write next chunk.
+      writeNextChunk();
+    } else {
+      // If all data has been written, close the stream if needed, and emit a 'finish' event.
+      stream.end();
+    }
+  }
+
+  // Start writing the first chunk.
+  writeNextChunk();
+};

frontend/node_modules/tus-js-client/lib.es5/node/index.js

@@ -0,0 +1,214 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+Object.defineProperty(exports, "DefaultHttpStack", {
+  enumerable: true,
+  get: function () {
+    return _httpStack.default;
+  }
+});
+Object.defineProperty(exports, "DetailedError", {
+  enumerable: true,
+  get: function () {
+    return _error.default;
+  }
+});
+Object.defineProperty(exports, "FileUrlStorage", {
+  enumerable: true,
+  get: function () {
+    return _urlStorage.FileUrlStorage;
+  }
+});
+Object.defineProperty(exports, "StreamSource", {
+  enumerable: true,
+  get: function () {
+    return _StreamSource.default;
+  }
+});
+exports.Upload = void 0;
+Object.defineProperty(exports, "canStoreURLs", {
+  enumerable: true,
+  get: function () {
+    return _urlStorage.canStoreURLs;
+  }
+});
+exports.defaultOptions = void 0;
+Object.defineProperty(exports, "enableDebugLog", {
+  enumerable: true,
+  get: function () {
+    return _logger.enableDebugLog;
+  }
+});
+exports.isSupported = void 0;
+var _error = _interopRequireDefault(require("../error.js"));
+var _logger = require("../logger.js");
+var _noopUrlStorage = _interopRequireDefault(require("../noopUrlStorage.js"));
+var _upload = _interopRequireDefault(require("../upload.js"));
+var _fileReader = _interopRequireDefault(require("./fileReader.js"));
+var _fileSignature = _interopRequireDefault(require("./fileSignature.js"));
+var _httpStack = _interopRequireDefault(require("./httpStack.js"));
+var _StreamSource = _interopRequireDefault(require("./sources/StreamSource.js"));
+var _urlStorage = require("./urlStorage.js");
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+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 _callSuper(t, o, e) {
+  return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e));
+}
+function _possibleConstructorReturn(self, call) {
+  if (call && (_typeof(call) === "object" || typeof call === "function")) {
+    return call;
+  } else if (call !== void 0) {
+    throw new TypeError("Derived constructors may only return object or undefined");
+  }
+  return _assertThisInitialized(self);
+}
+function _assertThisInitialized(self) {
+  if (self === void 0) {
+    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+  }
+  return self;
+}
+function _isNativeReflectConstruct() {
+  try {
+    var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
+  } catch (t) {}
+  return (_isNativeReflectConstruct = function _isNativeReflectConstruct() {
+    return !!t;
+  })();
+}
+function _getPrototypeOf(o) {
+  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) {
+    return o.__proto__ || Object.getPrototypeOf(o);
+  };
+  return _getPrototypeOf(o);
+}
+function _inherits(subClass, superClass) {
+  if (typeof superClass !== "function" && superClass !== null) {
+    throw new TypeError("Super expression must either be null or a function");
+  }
+  subClass.prototype = Object.create(superClass && superClass.prototype, {
+    constructor: {
+      value: subClass,
+      writable: true,
+      configurable: true
+    }
+  });
+  Object.defineProperty(subClass, "prototype", {
+    writable: false
+  });
+  if (superClass) _setPrototypeOf(subClass, superClass);
+}
+function _setPrototypeOf(o, p) {
+  _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) {
+    o.__proto__ = p;
+    return o;
+  };
+  return _setPrototypeOf(o, p);
+}
+function ownKeys(e, r) {
+  var t = Object.keys(e);
+  if (Object.getOwnPropertySymbols) {
+    var o = Object.getOwnPropertySymbols(e);
+    r && (o = o.filter(function (r) {
+      return Object.getOwnPropertyDescriptor(e, r).enumerable;
+    })), t.push.apply(t, o);
+  }
+  return t;
+}
+function _objectSpread(e) {
+  for (var r = 1; r < arguments.length; r++) {
+    var t = null != arguments[r] ? arguments[r] : {};
+    r % 2 ? ownKeys(Object(t), !0).forEach(function (r) {
+      _defineProperty(e, r, t[r]);
+    }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) {
+      Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r));
+    });
+  }
+  return e;
+}
+function _defineProperty(obj, key, value) {
+  key = _toPropertyKey(key);
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+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 defaultOptions = exports.defaultOptions = _objectSpread(_objectSpread({}, _upload.default.defaultOptions), {}, {
+  httpStack: new _httpStack.default(),
+  fileReader: new _fileReader.default(),
+  urlStorage: new _noopUrlStorage.default(),
+  fingerprint: _fileSignature.default
+});
+var Upload = exports.Upload = /*#__PURE__*/function (_BaseUpload) {
+  function Upload() {
+    var file = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    _classCallCheck(this, Upload);
+    options = _objectSpread(_objectSpread({}, defaultOptions), options);
+    return _callSuper(this, Upload, [file, options]);
+  }
+  _inherits(Upload, _BaseUpload);
+  return _createClass(Upload, null, [{
+    key: "terminate",
+    value: function terminate(url) {
+      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+      options = _objectSpread(_objectSpread({}, defaultOptions), options);
+      return _upload.default.terminate(url, options);
+    }
+  }]);
+}(_upload.default); // The Node.js environment does not have restrictions which may cause
+// tus-js-client not to function.
+var isSupported = exports.isSupported = true;

frontend/node_modules/tus-js-client/lib.es5/node/sources/BufferSource.js

@@ -0,0 +1,73 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+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 BufferSource = exports.default = /*#__PURE__*/function () {
+  function BufferSource(buffer) {
+    _classCallCheck(this, BufferSource);
+    this._buffer = buffer;
+    this.size = buffer.length;
+  }
+  return _createClass(BufferSource, [{
+    key: "slice",
+    value: function slice(start, end) {
+      var value = this._buffer.slice(start, end);
+      value.size = value.length;
+      var done = end >= this.size;
+      return Promise.resolve({
+        value: value,
+        done: done
+      });
+    }
+  }, {
+    key: "close",
+    value: function close() {}
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.es5/node/sources/FileSource.js

@@ -0,0 +1,465 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = getFileSource;
+var _fs = require("fs");
+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 _regeneratorRuntime() {
+  "use strict";
+
+  /*! regenerator-runtime -- Copyright (c) 2014-present, Facebook, Inc. -- license (MIT): https://github.com/facebook/regenerator/blob/main/LICENSE */
+  _regeneratorRuntime = function _regeneratorRuntime() {
+    return e;
+  };
+  var t,
+    e = {},
+    r = Object.prototype,
+    n = r.hasOwnProperty,
+    o = Object.defineProperty || function (t, e, r) {
+      t[e] = r.value;
+    },
+    i = "function" == typeof Symbol ? Symbol : {},
+    a = i.iterator || "@@iterator",
+    c = i.asyncIterator || "@@asyncIterator",
+    u = i.toStringTag || "@@toStringTag";
+  function define(t, e, r) {
+    return Object.defineProperty(t, e, {
+      value: r,
+      enumerable: !0,
+      configurable: !0,
+      writable: !0
+    }), t[e];
+  }
+  try {
+    define({}, "");
+  } catch (t) {
+    define = function define(t, e, r) {
+      return t[e] = r;
+    };
+  }
+  function wrap(t, e, r, n) {
+    var i = e && e.prototype instanceof Generator ? e : Generator,
+      a = Object.create(i.prototype),
+      c = new Context(n || []);
+    return o(a, "_invoke", {
+      value: makeInvokeMethod(t, r, c)
+    }), a;
+  }
+  function tryCatch(t, e, r) {
+    try {
+      return {
+        type: "normal",
+        arg: t.call(e, r)
+      };
+    } catch (t) {
+      return {
+        type: "throw",
+        arg: t
+      };
+    }
+  }
+  e.wrap = wrap;
+  var h = "suspendedStart",
+    l = "suspendedYield",
+    f = "executing",
+    s = "completed",
+    y = {};
+  function Generator() {}
+  function GeneratorFunction() {}
+  function GeneratorFunctionPrototype() {}
+  var p = {};
+  define(p, a, function () {
+    return this;
+  });
+  var d = Object.getPrototypeOf,
+    v = d && d(d(values([])));
+  v && v !== r && n.call(v, a) && (p = v);
+  var g = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(p);
+  function defineIteratorMethods(t) {
+    ["next", "throw", "return"].forEach(function (e) {
+      define(t, e, function (t) {
+        return this._invoke(e, t);
+      });
+    });
+  }
+  function AsyncIterator(t, e) {
+    function invoke(r, o, i, a) {
+      var c = tryCatch(t[r], t, o);
+      if ("throw" !== c.type) {
+        var u = c.arg,
+          h = u.value;
+        return h && "object" == _typeof(h) && n.call(h, "__await") ? e.resolve(h.__await).then(function (t) {
+          invoke("next", t, i, a);
+        }, function (t) {
+          invoke("throw", t, i, a);
+        }) : e.resolve(h).then(function (t) {
+          u.value = t, i(u);
+        }, function (t) {
+          return invoke("throw", t, i, a);
+        });
+      }
+      a(c.arg);
+    }
+    var r;
+    o(this, "_invoke", {
+      value: function value(t, n) {
+        function callInvokeWithMethodAndArg() {
+          return new e(function (e, r) {
+            invoke(t, n, e, r);
+          });
+        }
+        return r = r ? r.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
+      }
+    });
+  }
+  function makeInvokeMethod(e, r, n) {
+    var o = h;
+    return function (i, a) {
+      if (o === f) throw Error("Generator is already running");
+      if (o === s) {
+        if ("throw" === i) throw a;
+        return {
+          value: t,
+          done: !0
+        };
+      }
+      for (n.method = i, n.arg = a;;) {
+        var c = n.delegate;
+        if (c) {
+          var u = maybeInvokeDelegate(c, n);
+          if (u) {
+            if (u === y) continue;
+            return u;
+          }
+        }
+        if ("next" === n.method) n.sent = n._sent = n.arg;else if ("throw" === n.method) {
+          if (o === h) throw o = s, n.arg;
+          n.dispatchException(n.arg);
+        } else "return" === n.method && n.abrupt("return", n.arg);
+        o = f;
+        var p = tryCatch(e, r, n);
+        if ("normal" === p.type) {
+          if (o = n.done ? s : l, p.arg === y) continue;
+          return {
+            value: p.arg,
+            done: n.done
+          };
+        }
+        "throw" === p.type && (o = s, n.method = "throw", n.arg = p.arg);
+      }
+    };
+  }
+  function maybeInvokeDelegate(e, r) {
+    var n = r.method,
+      o = e.iterator[n];
+    if (o === t) return r.delegate = null, "throw" === n && e.iterator["return"] && (r.method = "return", r.arg = t, maybeInvokeDelegate(e, r), "throw" === r.method) || "return" !== n && (r.method = "throw", r.arg = new TypeError("The iterator does not provide a '" + n + "' method")), y;
+    var i = tryCatch(o, e.iterator, r.arg);
+    if ("throw" === i.type) return r.method = "throw", r.arg = i.arg, r.delegate = null, y;
+    var a = i.arg;
+    return a ? a.done ? (r[e.resultName] = a.value, r.next = e.nextLoc, "return" !== r.method && (r.method = "next", r.arg = t), r.delegate = null, y) : a : (r.method = "throw", r.arg = new TypeError("iterator result is not an object"), r.delegate = null, y);
+  }
+  function pushTryEntry(t) {
+    var e = {
+      tryLoc: t[0]
+    };
+    1 in t && (e.catchLoc = t[1]), 2 in t && (e.finallyLoc = t[2], e.afterLoc = t[3]), this.tryEntries.push(e);
+  }
+  function resetTryEntry(t) {
+    var e = t.completion || {};
+    e.type = "normal", delete e.arg, t.completion = e;
+  }
+  function Context(t) {
+    this.tryEntries = [{
+      tryLoc: "root"
+    }], t.forEach(pushTryEntry, this), this.reset(!0);
+  }
+  function values(e) {
+    if (e || "" === e) {
+      var r = e[a];
+      if (r) return r.call(e);
+      if ("function" == typeof e.next) return e;
+      if (!isNaN(e.length)) {
+        var o = -1,
+          i = function next() {
+            for (; ++o < e.length;) if (n.call(e, o)) return next.value = e[o], next.done = !1, next;
+            return next.value = t, next.done = !0, next;
+          };
+        return i.next = i;
+      }
+    }
+    throw new TypeError(_typeof(e) + " is not iterable");
+  }
+  return GeneratorFunction.prototype = GeneratorFunctionPrototype, o(g, "constructor", {
+    value: GeneratorFunctionPrototype,
+    configurable: !0
+  }), o(GeneratorFunctionPrototype, "constructor", {
+    value: GeneratorFunction,
+    configurable: !0
+  }), GeneratorFunction.displayName = define(GeneratorFunctionPrototype, u, "GeneratorFunction"), e.isGeneratorFunction = function (t) {
+    var e = "function" == typeof t && t.constructor;
+    return !!e && (e === GeneratorFunction || "GeneratorFunction" === (e.displayName || e.name));
+  }, e.mark = function (t) {
+    return Object.setPrototypeOf ? Object.setPrototypeOf(t, GeneratorFunctionPrototype) : (t.__proto__ = GeneratorFunctionPrototype, define(t, u, "GeneratorFunction")), t.prototype = Object.create(g), t;
+  }, e.awrap = function (t) {
+    return {
+      __await: t
+    };
+  }, defineIteratorMethods(AsyncIterator.prototype), define(AsyncIterator.prototype, c, function () {
+    return this;
+  }), e.AsyncIterator = AsyncIterator, e.async = function (t, r, n, o, i) {
+    void 0 === i && (i = Promise);
+    var a = new AsyncIterator(wrap(t, r, n, o), i);
+    return e.isGeneratorFunction(r) ? a : a.next().then(function (t) {
+      return t.done ? t.value : a.next();
+    });
+  }, defineIteratorMethods(g), define(g, u, "Generator"), define(g, a, function () {
+    return this;
+  }), define(g, "toString", function () {
+    return "[object Generator]";
+  }), e.keys = function (t) {
+    var e = Object(t),
+      r = [];
+    for (var n in e) r.push(n);
+    return r.reverse(), function next() {
+      for (; r.length;) {
+        var t = r.pop();
+        if (t in e) return next.value = t, next.done = !1, next;
+      }
+      return next.done = !0, next;
+    };
+  }, e.values = values, Context.prototype = {
+    constructor: Context,
+    reset: function reset(e) {
+      if (this.prev = 0, this.next = 0, this.sent = this._sent = t, this.done = !1, this.delegate = null, this.method = "next", this.arg = t, this.tryEntries.forEach(resetTryEntry), !e) for (var r in this) "t" === r.charAt(0) && n.call(this, r) && !isNaN(+r.slice(1)) && (this[r] = t);
+    },
+    stop: function stop() {
+      this.done = !0;
+      var t = this.tryEntries[0].completion;
+      if ("throw" === t.type) throw t.arg;
+      return this.rval;
+    },
+    dispatchException: function dispatchException(e) {
+      if (this.done) throw e;
+      var r = this;
+      function handle(n, o) {
+        return a.type = "throw", a.arg = e, r.next = n, o && (r.method = "next", r.arg = t), !!o;
+      }
+      for (var o = this.tryEntries.length - 1; o >= 0; --o) {
+        var i = this.tryEntries[o],
+          a = i.completion;
+        if ("root" === i.tryLoc) return handle("end");
+        if (i.tryLoc <= this.prev) {
+          var c = n.call(i, "catchLoc"),
+            u = n.call(i, "finallyLoc");
+          if (c && u) {
+            if (this.prev < i.catchLoc) return handle(i.catchLoc, !0);
+            if (this.prev < i.finallyLoc) return handle(i.finallyLoc);
+          } else if (c) {
+            if (this.prev < i.catchLoc) return handle(i.catchLoc, !0);
+          } else {
+            if (!u) throw Error("try statement without catch or finally");
+            if (this.prev < i.finallyLoc) return handle(i.finallyLoc);
+          }
+        }
+      }
+    },
+    abrupt: function abrupt(t, e) {
+      for (var r = this.tryEntries.length - 1; r >= 0; --r) {
+        var o = this.tryEntries[r];
+        if (o.tryLoc <= this.prev && n.call(o, "finallyLoc") && this.prev < o.finallyLoc) {
+          var i = o;
+          break;
+        }
+      }
+      i && ("break" === t || "continue" === t) && i.tryLoc <= e && e <= i.finallyLoc && (i = null);
+      var a = i ? i.completion : {};
+      return a.type = t, a.arg = e, i ? (this.method = "next", this.next = i.finallyLoc, y) : this.complete(a);
+    },
+    complete: function complete(t, e) {
+      if ("throw" === t.type) throw t.arg;
+      return "break" === t.type || "continue" === t.type ? this.next = t.arg : "return" === t.type ? (this.rval = this.arg = t.arg, this.method = "return", this.next = "end") : "normal" === t.type && e && (this.next = e), y;
+    },
+    finish: function finish(t) {
+      for (var e = this.tryEntries.length - 1; e >= 0; --e) {
+        var r = this.tryEntries[e];
+        if (r.finallyLoc === t) return this.complete(r.completion, r.afterLoc), resetTryEntry(r), y;
+      }
+    },
+    "catch": function _catch(t) {
+      for (var e = this.tryEntries.length - 1; e >= 0; --e) {
+        var r = this.tryEntries[e];
+        if (r.tryLoc === t) {
+          var n = r.completion;
+          if ("throw" === n.type) {
+            var o = n.arg;
+            resetTryEntry(r);
+          }
+          return o;
+        }
+      }
+      throw Error("illegal catch attempt");
+    },
+    delegateYield: function delegateYield(e, r, n) {
+      return this.delegate = {
+        iterator: values(e),
+        resultName: r,
+        nextLoc: n
+      }, "next" === this.method && (this.arg = t), y;
+    }
+  }, e;
+}
+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);
+}
+function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
+  try {
+    var info = gen[key](arg);
+    var value = info.value;
+  } catch (error) {
+    reject(error);
+    return;
+  }
+  if (info.done) {
+    resolve(value);
+  } else {
+    Promise.resolve(value).then(_next, _throw);
+  }
+}
+function _asyncToGenerator(fn) {
+  return function () {
+    var self = this,
+      args = arguments;
+    return new Promise(function (resolve, reject) {
+      var gen = fn.apply(self, args);
+      function _next(value) {
+        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
+      }
+      function _throw(err) {
+        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
+      }
+      _next(undefined);
+    });
+  };
+}
+function getFileSource(_x) {
+  return _getFileSource.apply(this, arguments);
+}
+function _getFileSource() {
+  _getFileSource = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee(stream) {
+    var _stream$start;
+    var path, _yield$fsPromises$sta, size, start, end, actualSize;
+    return _regeneratorRuntime().wrap(function _callee$(_context) {
+      while (1) switch (_context.prev = _context.next) {
+        case 0:
+          path = stream.path.toString();
+          _context.next = 3;
+          return _fs.promises.stat(path);
+        case 3:
+          _yield$fsPromises$sta = _context.sent;
+          size = _yield$fsPromises$sta.size;
+          // The fs.ReadStream might be configured to not read from the beginning
+          // to the end, but instead from a slice in between. In this case, we consider
+          // that range to indicate the actual uploadable size.
+          // This happens, for example, if a fs.ReadStream is used with the `parallelUploads`
+          // option. There, the ReadStream is sliced into multiple ReadStreams to fit the number
+          // of number of `parallelUploads`. Each ReadStream has `start` and `end` set.
+          // Note: `stream.end` is Infinity by default, so we need the check `isFinite`.
+          // Note: `stream.end` is treated inclusively, so we need to add 1 here.
+          // See the comment in slice() for more context.
+          start = (_stream$start = stream.start) !== null && _stream$start !== void 0 ? _stream$start : 0;
+          end = Number.isFinite(stream.end) ? stream.end + 1 : size;
+          actualSize = end - start;
+          return _context.abrupt("return", new FileSource(stream, path, actualSize));
+        case 9:
+        case "end":
+          return _context.stop();
+      }
+    }, _callee);
+  }));
+  return _getFileSource.apply(this, arguments);
+}
+var FileSource = /*#__PURE__*/function () {
+  function FileSource(stream, path, size) {
+    _classCallCheck(this, FileSource);
+    this._stream = stream;
+    this._path = path;
+    this.size = size;
+  }
+  return _createClass(FileSource, [{
+    key: "slice",
+    value: function slice(start, end) {
+      var _this$_stream$start;
+      // The fs.ReadStream might be configured to not read from the beginning,
+      // but instead start at a different offset. The start value from the caller
+      // does not include the offset, so we need to add this offset to our range later.
+      // This happens, for example, if a fs.ReadStream is used with the `parallelUploads`
+      // option. First, the ReadStream is sliced into multiple ReadStreams to fit the number
+      // of number of `parallelUploads`. Each ReadStream has `start` set.
+      var offset = (_this$_stream$start = this._stream.start) !== null && _this$_stream$start !== void 0 ? _this$_stream$start : 0;
+      var stream = (0, _fs.createReadStream)(this._path, {
+        start: offset + start,
+        // The `end` option for createReadStream is treated inclusively
+        // (see https://nodejs.org/api/fs.html#fs_fs_createreadstream_path_options).
+        // However, the Buffer#slice(start, end) and also our Source#slice(start, end)
+        // method treat the end range exclusively, so we have to subtract 1.
+        // This prevents an off-by-one error when reporting upload progress.
+        end: offset + end - 1,
+        autoClose: true
+      });
+      stream.size = Math.min(end - start, this.size);
+      var done = stream.size >= this.size;
+      return Promise.resolve({
+        value: stream,
+        done: done
+      });
+    }
+  }, {
+    key: "close",
+    value: function close() {
+      this._stream.destroy();
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.es5/node/sources/StreamSource.js

@@ -0,0 +1,546 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+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 _regeneratorRuntime() {
+  "use strict";
+
+  /*! regenerator-runtime -- Copyright (c) 2014-present, Facebook, Inc. -- license (MIT): https://github.com/facebook/regenerator/blob/main/LICENSE */
+  _regeneratorRuntime = function _regeneratorRuntime() {
+    return e;
+  };
+  var t,
+    e = {},
+    r = Object.prototype,
+    n = r.hasOwnProperty,
+    o = Object.defineProperty || function (t, e, r) {
+      t[e] = r.value;
+    },
+    i = "function" == typeof Symbol ? Symbol : {},
+    a = i.iterator || "@@iterator",
+    c = i.asyncIterator || "@@asyncIterator",
+    u = i.toStringTag || "@@toStringTag";
+  function define(t, e, r) {
+    return Object.defineProperty(t, e, {
+      value: r,
+      enumerable: !0,
+      configurable: !0,
+      writable: !0
+    }), t[e];
+  }
+  try {
+    define({}, "");
+  } catch (t) {
+    define = function define(t, e, r) {
+      return t[e] = r;
+    };
+  }
+  function wrap(t, e, r, n) {
+    var i = e && e.prototype instanceof Generator ? e : Generator,
+      a = Object.create(i.prototype),
+      c = new Context(n || []);
+    return o(a, "_invoke", {
+      value: makeInvokeMethod(t, r, c)
+    }), a;
+  }
+  function tryCatch(t, e, r) {
+    try {
+      return {
+        type: "normal",
+        arg: t.call(e, r)
+      };
+    } catch (t) {
+      return {
+        type: "throw",
+        arg: t
+      };
+    }
+  }
+  e.wrap = wrap;
+  var h = "suspendedStart",
+    l = "suspendedYield",
+    f = "executing",
+    s = "completed",
+    y = {};
+  function Generator() {}
+  function GeneratorFunction() {}
+  function GeneratorFunctionPrototype() {}
+  var p = {};
+  define(p, a, function () {
+    return this;
+  });
+  var d = Object.getPrototypeOf,
+    v = d && d(d(values([])));
+  v && v !== r && n.call(v, a) && (p = v);
+  var g = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(p);
+  function defineIteratorMethods(t) {
+    ["next", "throw", "return"].forEach(function (e) {
+      define(t, e, function (t) {
+        return this._invoke(e, t);
+      });
+    });
+  }
+  function AsyncIterator(t, e) {
+    function invoke(r, o, i, a) {
+      var c = tryCatch(t[r], t, o);
+      if ("throw" !== c.type) {
+        var u = c.arg,
+          h = u.value;
+        return h && "object" == _typeof(h) && n.call(h, "__await") ? e.resolve(h.__await).then(function (t) {
+          invoke("next", t, i, a);
+        }, function (t) {
+          invoke("throw", t, i, a);
+        }) : e.resolve(h).then(function (t) {
+          u.value = t, i(u);
+        }, function (t) {
+          return invoke("throw", t, i, a);
+        });
+      }
+      a(c.arg);
+    }
+    var r;
+    o(this, "_invoke", {
+      value: function value(t, n) {
+        function callInvokeWithMethodAndArg() {
+          return new e(function (e, r) {
+            invoke(t, n, e, r);
+          });
+        }
+        return r = r ? r.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
+      }
+    });
+  }
+  function makeInvokeMethod(e, r, n) {
+    var o = h;
+    return function (i, a) {
+      if (o === f) throw Error("Generator is already running");
+      if (o === s) {
+        if ("throw" === i) throw a;
+        return {
+          value: t,
+          done: !0
+        };
+      }
+      for (n.method = i, n.arg = a;;) {
+        var c = n.delegate;
+        if (c) {
+          var u = maybeInvokeDelegate(c, n);
+          if (u) {
+            if (u === y) continue;
+            return u;
+          }
+        }
+        if ("next" === n.method) n.sent = n._sent = n.arg;else if ("throw" === n.method) {
+          if (o === h) throw o = s, n.arg;
+          n.dispatchException(n.arg);
+        } else "return" === n.method && n.abrupt("return", n.arg);
+        o = f;
+        var p = tryCatch(e, r, n);
+        if ("normal" === p.type) {
+          if (o = n.done ? s : l, p.arg === y) continue;
+          return {
+            value: p.arg,
+            done: n.done
+          };
+        }
+        "throw" === p.type && (o = s, n.method = "throw", n.arg = p.arg);
+      }
+    };
+  }
+  function maybeInvokeDelegate(e, r) {
+    var n = r.method,
+      o = e.iterator[n];
+    if (o === t) return r.delegate = null, "throw" === n && e.iterator["return"] && (r.method = "return", r.arg = t, maybeInvokeDelegate(e, r), "throw" === r.method) || "return" !== n && (r.method = "throw", r.arg = new TypeError("The iterator does not provide a '" + n + "' method")), y;
+    var i = tryCatch(o, e.iterator, r.arg);
+    if ("throw" === i.type) return r.method = "throw", r.arg = i.arg, r.delegate = null, y;
+    var a = i.arg;
+    return a ? a.done ? (r[e.resultName] = a.value, r.next = e.nextLoc, "return" !== r.method && (r.method = "next", r.arg = t), r.delegate = null, y) : a : (r.method = "throw", r.arg = new TypeError("iterator result is not an object"), r.delegate = null, y);
+  }
+  function pushTryEntry(t) {
+    var e = {
+      tryLoc: t[0]
+    };
+    1 in t && (e.catchLoc = t[1]), 2 in t && (e.finallyLoc = t[2], e.afterLoc = t[3]), this.tryEntries.push(e);
+  }
+  function resetTryEntry(t) {
+    var e = t.completion || {};
+    e.type = "normal", delete e.arg, t.completion = e;
+  }
+  function Context(t) {
+    this.tryEntries = [{
+      tryLoc: "root"
+    }], t.forEach(pushTryEntry, this), this.reset(!0);
+  }
+  function values(e) {
+    if (e || "" === e) {
+      var r = e[a];
+      if (r) return r.call(e);
+      if ("function" == typeof e.next) return e;
+      if (!isNaN(e.length)) {
+        var o = -1,
+          i = function next() {
+            for (; ++o < e.length;) if (n.call(e, o)) return next.value = e[o], next.done = !1, next;
+            return next.value = t, next.done = !0, next;
+          };
+        return i.next = i;
+      }
+    }
+    throw new TypeError(_typeof(e) + " is not iterable");
+  }
+  return GeneratorFunction.prototype = GeneratorFunctionPrototype, o(g, "constructor", {
+    value: GeneratorFunctionPrototype,
+    configurable: !0
+  }), o(GeneratorFunctionPrototype, "constructor", {
+    value: GeneratorFunction,
+    configurable: !0
+  }), GeneratorFunction.displayName = define(GeneratorFunctionPrototype, u, "GeneratorFunction"), e.isGeneratorFunction = function (t) {
+    var e = "function" == typeof t && t.constructor;
+    return !!e && (e === GeneratorFunction || "GeneratorFunction" === (e.displayName || e.name));
+  }, e.mark = function (t) {
+    return Object.setPrototypeOf ? Object.setPrototypeOf(t, GeneratorFunctionPrototype) : (t.__proto__ = GeneratorFunctionPrototype, define(t, u, "GeneratorFunction")), t.prototype = Object.create(g), t;
+  }, e.awrap = function (t) {
+    return {
+      __await: t
+    };
+  }, defineIteratorMethods(AsyncIterator.prototype), define(AsyncIterator.prototype, c, function () {
+    return this;
+  }), e.AsyncIterator = AsyncIterator, e.async = function (t, r, n, o, i) {
+    void 0 === i && (i = Promise);
+    var a = new AsyncIterator(wrap(t, r, n, o), i);
+    return e.isGeneratorFunction(r) ? a : a.next().then(function (t) {
+      return t.done ? t.value : a.next();
+    });
+  }, defineIteratorMethods(g), define(g, u, "Generator"), define(g, a, function () {
+    return this;
+  }), define(g, "toString", function () {
+    return "[object Generator]";
+  }), e.keys = function (t) {
+    var e = Object(t),
+      r = [];
+    for (var n in e) r.push(n);
+    return r.reverse(), function next() {
+      for (; r.length;) {
+        var t = r.pop();
+        if (t in e) return next.value = t, next.done = !1, next;
+      }
+      return next.done = !0, next;
+    };
+  }, e.values = values, Context.prototype = {
+    constructor: Context,
+    reset: function reset(e) {
+      if (this.prev = 0, this.next = 0, this.sent = this._sent = t, this.done = !1, this.delegate = null, this.method = "next", this.arg = t, this.tryEntries.forEach(resetTryEntry), !e) for (var r in this) "t" === r.charAt(0) && n.call(this, r) && !isNaN(+r.slice(1)) && (this[r] = t);
+    },
+    stop: function stop() {
+      this.done = !0;
+      var t = this.tryEntries[0].completion;
+      if ("throw" === t.type) throw t.arg;
+      return this.rval;
+    },
+    dispatchException: function dispatchException(e) {
+      if (this.done) throw e;
+      var r = this;
+      function handle(n, o) {
+        return a.type = "throw", a.arg = e, r.next = n, o && (r.method = "next", r.arg = t), !!o;
+      }
+      for (var o = this.tryEntries.length - 1; o >= 0; --o) {
+        var i = this.tryEntries[o],
+          a = i.completion;
+        if ("root" === i.tryLoc) return handle("end");
+        if (i.tryLoc <= this.prev) {
+          var c = n.call(i, "catchLoc"),
+            u = n.call(i, "finallyLoc");
+          if (c && u) {
+            if (this.prev < i.catchLoc) return handle(i.catchLoc, !0);
+            if (this.prev < i.finallyLoc) return handle(i.finallyLoc);
+          } else if (c) {
+            if (this.prev < i.catchLoc) return handle(i.catchLoc, !0);
+          } else {
+            if (!u) throw Error("try statement without catch or finally");
+            if (this.prev < i.finallyLoc) return handle(i.finallyLoc);
+          }
+        }
+      }
+    },
+    abrupt: function abrupt(t, e) {
+      for (var r = this.tryEntries.length - 1; r >= 0; --r) {
+        var o = this.tryEntries[r];
+        if (o.tryLoc <= this.prev && n.call(o, "finallyLoc") && this.prev < o.finallyLoc) {
+          var i = o;
+          break;
+        }
+      }
+      i && ("break" === t || "continue" === t) && i.tryLoc <= e && e <= i.finallyLoc && (i = null);
+      var a = i ? i.completion : {};
+      return a.type = t, a.arg = e, i ? (this.method = "next", this.next = i.finallyLoc, y) : this.complete(a);
+    },
+    complete: function complete(t, e) {
+      if ("throw" === t.type) throw t.arg;
+      return "break" === t.type || "continue" === t.type ? this.next = t.arg : "return" === t.type ? (this.rval = this.arg = t.arg, this.method = "return", this.next = "end") : "normal" === t.type && e && (this.next = e), y;
+    },
+    finish: function finish(t) {
+      for (var e = this.tryEntries.length - 1; e >= 0; --e) {
+        var r = this.tryEntries[e];
+        if (r.finallyLoc === t) return this.complete(r.completion, r.afterLoc), resetTryEntry(r), y;
+      }
+    },
+    "catch": function _catch(t) {
+      for (var e = this.tryEntries.length - 1; e >= 0; --e) {
+        var r = this.tryEntries[e];
+        if (r.tryLoc === t) {
+          var n = r.completion;
+          if ("throw" === n.type) {
+            var o = n.arg;
+            resetTryEntry(r);
+          }
+          return o;
+        }
+      }
+      throw Error("illegal catch attempt");
+    },
+    delegateYield: function delegateYield(e, r, n) {
+      return this.delegate = {
+        iterator: values(e),
+        resultName: r,
+        nextLoc: n
+      }, "next" === this.method && (this.arg = t), y;
+    }
+  }, e;
+}
+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);
+}
+function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
+  try {
+    var info = gen[key](arg);
+    var value = info.value;
+  } catch (error) {
+    reject(error);
+    return;
+  }
+  if (info.done) {
+    resolve(value);
+  } else {
+    Promise.resolve(value).then(_next, _throw);
+  }
+}
+function _asyncToGenerator(fn) {
+  return function () {
+    var self = this,
+      args = arguments;
+    return new Promise(function (resolve, reject) {
+      var gen = fn.apply(self, args);
+      function _next(value) {
+        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
+      }
+      function _throw(err) {
+        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
+      }
+      _next(undefined);
+    });
+  };
+}
+/**
+ * readChunk reads a chunk with the given size from the given
+ * stream. It will wait until enough data is available to satisfy
+ * the size requirement before resolving.
+ * Only if the stream ends, the function may resolve with a buffer
+ * smaller than the size argument.
+ * Note that we rely on the stream behaving as Node.js documents:
+ * https://nodejs.org/api/stream.html#readablereadsize
+ */
+function readChunk(_x, _x2) {
+  return _readChunk.apply(this, arguments);
+}
+/**
+ * StreamSource provides an interface to obtain slices of a Readable stream for
+ * various ranges.
+ * It will buffer read data, to allow for following pattern:
+ * - Call slice(startA, endA) will buffer the data of the requested range
+ * - Call slice(startB, endB) will return data from the buffer if startA <= startB <= endA.
+ *   If endB > endA, it will also consume new data from the stream.
+ * Note that it is forbidden to call with startB < startA or startB > endA. In other words,
+ * the slice calls cannot seek back and must not skip data from the stream.
+ */
+function _readChunk() {
+  _readChunk = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee2(stream, size) {
+    return _regeneratorRuntime().wrap(function _callee2$(_context2) {
+      while (1) switch (_context2.prev = _context2.next) {
+        case 0:
+          return _context2.abrupt("return", new Promise(function (resolve, reject) {
+            var onError = function onError(err) {
+              stream.off('readable', onReadable);
+              reject(err);
+            };
+            var onReadable = function onReadable() {
+              // TODO: Node requires size to be less than 1GB. Add a validation for that
+              var chunk = stream.read(size);
+              if (chunk !== null) {
+                stream.off('error', onError);
+                stream.off('readable', onReadable);
+                resolve(chunk);
+              }
+            };
+            stream.once('error', onError);
+            stream.on('readable', onReadable);
+          }));
+        case 1:
+        case "end":
+          return _context2.stop();
+      }
+    }, _callee2);
+  }));
+  return _readChunk.apply(this, arguments);
+}
+var StreamSource = exports.default = /*#__PURE__*/function () {
+  function StreamSource(stream) {
+    var _this = this;
+    _classCallCheck(this, StreamSource);
+    this._stream = stream;
+
+    // Setting the size to null indicates that we have no calculation available
+    // for how much data this stream will emit requiring the user to specify
+    // it manually (see the `uploadSize` option).
+    this.size = null;
+    this._buf = Buffer.alloc(0);
+    this._bufPos = 0;
+    this._ended = false;
+    this._error = null;
+    stream.pause();
+    stream.on('end', function () {
+      _this._ended = true;
+    });
+    stream.on('error', function (err) {
+      _this._error = err;
+    });
+  }
+  return _createClass(StreamSource, [{
+    key: "slice",
+    value: function () {
+      var _slice = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee(start, end) {
+        var returnBuffer, bufStart, bufEnd, requestedSize, newChunk;
+        return _regeneratorRuntime().wrap(function _callee$(_context) {
+          while (1) switch (_context.prev = _context.next) {
+            case 0:
+              if (!(start < this._bufPos)) {
+                _context.next = 2;
+                break;
+              }
+              throw new Error('cannot slice from position which we already seeked away');
+            case 2:
+              if (!(start > this._bufPos + this._buf.length)) {
+                _context.next = 4;
+                break;
+              }
+              throw new Error('slice start is outside of buffer (currently not implemented)');
+            case 4:
+              if (!this._error) {
+                _context.next = 6;
+                break;
+              }
+              throw this._error;
+            case 6:
+              // Always attempt to drain the buffer first, even if this means that we
+              // return less data than the caller requested.
+              if (start < this._bufPos + this._buf.length) {
+                bufStart = start - this._bufPos;
+                bufEnd = Math.min(this._buf.length, end - this._bufPos);
+                returnBuffer = this._buf.slice(bufStart, bufEnd);
+              } else {
+                returnBuffer = Buffer.alloc(0);
+              }
+
+              // If the stream has ended already, read calls would not finish, so return early here.
+              if (!this._ended) {
+                _context.next = 10;
+                break;
+              }
+              returnBuffer.size = returnBuffer.length;
+              return _context.abrupt("return", {
+                value: returnBuffer,
+                done: true
+              });
+            case 10:
+              // If we could not satisfy the slice request from the buffer only, read more data from
+              // the stream and add it to the buffer.
+              requestedSize = end - start;
+              if (!(requestedSize > returnBuffer.length)) {
+                _context.next = 16;
+                break;
+              }
+              _context.next = 14;
+              return readChunk(this._stream, requestedSize - returnBuffer.length);
+            case 14:
+              newChunk = _context.sent;
+              // Append the new chunk to the buffer
+              returnBuffer = Buffer.concat([returnBuffer, newChunk]);
+            case 16:
+              // Important: Store the read data, so consecutive slice calls can access the same data.
+              this._buf = returnBuffer;
+              this._bufPos = start;
+              returnBuffer.size = returnBuffer.length;
+              return _context.abrupt("return", {
+                value: returnBuffer,
+                done: this._ended
+              });
+            case 20:
+            case "end":
+              return _context.stop();
+          }
+        }, _callee, this);
+      }));
+      function slice(_x3, _x4) {
+        return _slice.apply(this, arguments);
+      }
+      return slice;
+    }()
+  }, {
+    key: "close",
+    value: function close() {
+      this._stream.destroy();
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.es5/node/urlStorage.js

@@ -0,0 +1,217 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.canStoreURLs = exports.FileUrlStorage = void 0;
+var _fs = require("fs");
+var _combineErrors = _interopRequireDefault(require("combine-errors"));
+var lockfile = _interopRequireWildcard(require("proper-lockfile"));
+function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
+function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+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 canStoreURLs = exports.canStoreURLs = true;
+var FileUrlStorage = exports.FileUrlStorage = /*#__PURE__*/function () {
+  function FileUrlStorage(filePath) {
+    _classCallCheck(this, FileUrlStorage);
+    this.path = filePath;
+  }
+  return _createClass(FileUrlStorage, [{
+    key: "findAllUploads",
+    value: function findAllUploads() {
+      var _this = this;
+      return new Promise(function (resolve, reject) {
+        _this._getItems('tus::', function (err, results) {
+          if (err) reject(err);else resolve(results);
+        });
+      });
+    }
+  }, {
+    key: "findUploadsByFingerprint",
+    value: function findUploadsByFingerprint(fingerprint) {
+      var _this2 = this;
+      return new Promise(function (resolve, reject) {
+        _this2._getItems("tus::".concat(fingerprint), function (err, results) {
+          if (err) reject(err);else resolve(results);
+        });
+      });
+    }
+  }, {
+    key: "removeUpload",
+    value: function removeUpload(urlStorageKey) {
+      var _this3 = this;
+      return new Promise(function (resolve, reject) {
+        _this3._removeItem(urlStorageKey, function (err) {
+          if (err) reject(err);else resolve();
+        });
+      });
+    }
+  }, {
+    key: "addUpload",
+    value: function addUpload(fingerprint, upload) {
+      var _this4 = this;
+      var id = Math.round(Math.random() * 1e12);
+      var key = "tus::".concat(fingerprint, "::").concat(id);
+      return new Promise(function (resolve, reject) {
+        _this4._setItem(key, upload, function (err) {
+          if (err) reject(err);else resolve(key);
+        });
+      });
+    }
+  }, {
+    key: "_setItem",
+    value: function _setItem(key, value, cb) {
+      var _this5 = this;
+      lockfile.lock(this.path, this._lockfileOptions()).then(function (release) {
+        cb = _this5._releaseAndCb(release, cb);
+        _this5._getData(function (err, data) {
+          if (err) {
+            cb(err);
+            return;
+          }
+          data[key] = value;
+          _this5._writeData(data, function (err2) {
+            return cb(err2);
+          });
+        });
+      })["catch"](cb);
+    }
+  }, {
+    key: "_getItems",
+    value: function _getItems(prefix, cb) {
+      this._getData(function (err, data) {
+        if (err) {
+          cb(err);
+          return;
+        }
+        var results = Object.keys(data).filter(function (key) {
+          return key.startsWith(prefix);
+        }).map(function (key) {
+          var obj = data[key];
+          obj.urlStorageKey = key;
+          return obj;
+        });
+        cb(null, results);
+      });
+    }
+  }, {
+    key: "_removeItem",
+    value: function _removeItem(key, cb) {
+      var _this6 = this;
+      lockfile.lock(this.path, this._lockfileOptions()).then(function (release) {
+        cb = _this6._releaseAndCb(release, cb);
+        _this6._getData(function (err, data) {
+          if (err) {
+            cb(err);
+            return;
+          }
+          delete data[key];
+          _this6._writeData(data, function (err2) {
+            return cb(err2);
+          });
+        });
+      })["catch"](cb);
+    }
+  }, {
+    key: "_lockfileOptions",
+    value: function _lockfileOptions() {
+      return {
+        realpath: false,
+        retries: {
+          retries: 5,
+          minTimeout: 20
+        }
+      };
+    }
+  }, {
+    key: "_releaseAndCb",
+    value: function _releaseAndCb(release, cb) {
+      return function (err) {
+        if (err) {
+          release().then(function () {
+            return cb(err);
+          })["catch"](function (releaseErr) {
+            return cb((0, _combineErrors.default)([err, releaseErr]));
+          });
+          return;
+        }
+        release().then(cb)["catch"](cb);
+      };
+    }
+  }, {
+    key: "_writeData",
+    value: function _writeData(data, cb) {
+      var opts = {
+        encoding: 'utf8',
+        mode: 432,
+        flag: 'w'
+      };
+      (0, _fs.writeFile)(this.path, JSON.stringify(data), opts, function (err) {
+        return cb(err);
+      });
+    }
+  }, {
+    key: "_getData",
+    value: function _getData(cb) {
+      (0, _fs.readFile)(this.path, 'utf8', function (err, data) {
+        if (err) {
+          // return empty data if file does not exist
+          if (err.code === 'ENOENT') cb(null, {});else cb(err);
+          return;
+        }
+        try {
+          data = !data.trim().length ? {} : JSON.parse(data);
+        } catch (error) {
+          cb(error);
+          return;
+        }
+        cb(null, data);
+      });
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.es5/noopUrlStorage.js

@@ -0,0 +1,77 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+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 NoopUrlStorage = exports.default = /*#__PURE__*/function () {
+  function NoopUrlStorage() {
+    _classCallCheck(this, NoopUrlStorage);
+  }
+  return _createClass(NoopUrlStorage, [{
+    key: "listAllUploads",
+    value: function listAllUploads() {
+      return Promise.resolve([]);
+    }
+  }, {
+    key: "findUploadsByFingerprint",
+    value: function findUploadsByFingerprint(_fingerprint) {
+      return Promise.resolve([]);
+    }
+  }, {
+    key: "removeUpload",
+    value: function removeUpload(_urlStorageKey) {
+      return Promise.resolve();
+    }
+  }, {
+    key: "addUpload",
+    value: function addUpload(_fingerprint, _upload) {
+      return Promise.resolve(null);
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.es5/uuid.js

@@ -0,0 +1,25 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = uuid;
+/**
+ * Generate a UUID v4 based on random numbers. We intentioanlly use the less
+ * secure Math.random function here since the more secure crypto.getRandomNumbers
+ * is not available on all platforms.
+ * This is not a problem for us since we use the UUID only for generating a
+ * request ID, so we can correlate server logs to client errors.
+ *
+ * This function is taken from following site:
+ * https://stackoverflow.com/questions/105034/create-guid-uuid-in-javascript
+ *
+ * @return {string} The generate UUID
+ */
+function uuid() {
+  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
+    var r = Math.random() * 16 | 0;
+    var v = c === 'x' ? r : r & 0x3 | 0x8;
+    return v.toString(16);
+  });
+}

frontend/node_modules/tus-js-client/lib.esm/browser/fileSignature.js

@@ -0,0 +1,34 @@
+import isReactNative from './isReactNative.js';
+
+// TODO: Differenciate between input types
+
+/**
+ * Generate a fingerprint for a file which will be used the store the endpoint
+ *
+ * @param {File} file
+ * @param {Object} options
+ * @param {Function} callback
+ */
+export default function fingerprint(file, options) {
+  if (isReactNative()) {
+    return Promise.resolve(reactNativeFingerprint(file, options));
+  }
+  return Promise.resolve(['tus-br', file.name, file.type, file.size, file.lastModified, options.endpoint].join('-'));
+}
+function reactNativeFingerprint(file, options) {
+  var exifHash = file.exif ? hashCode(JSON.stringify(file.exif)) : 'noexif';
+  return ['tus-rn', file.name || 'noname', file.size || 'nosize', exifHash, options.endpoint].join('/');
+}
+function hashCode(str) {
+  // from https://stackoverflow.com/a/8831937/151666
+  var hash = 0;
+  if (str.length === 0) {
+    return hash;
+  }
+  for (var i = 0; i < str.length; i++) {
+    var _char = str.charCodeAt(i);
+    hash = (hash << 5) - hash + _char;
+    hash &= hash; // Convert to 32bit integer
+  }
+  return hash;
+}

frontend/node_modules/tus-js-client/lib.esm/browser/httpStack.js

@@ -0,0 +1,122 @@
+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 XHRHttpStack = /*#__PURE__*/function () {
+  function XHRHttpStack() {
+    _classCallCheck(this, XHRHttpStack);
+  }
+  return _createClass(XHRHttpStack, [{
+    key: "createRequest",
+    value: function createRequest(method, url) {
+      return new Request(method, url);
+    }
+  }, {
+    key: "getName",
+    value: function getName() {
+      return 'XHRHttpStack';
+    }
+  }]);
+}();
+export { XHRHttpStack as default };
+var Request = /*#__PURE__*/function () {
+  function Request(method, url) {
+    _classCallCheck(this, Request);
+    this._xhr = new XMLHttpRequest();
+    this._xhr.open(method, url, true);
+    this._method = method;
+    this._url = url;
+    this._headers = {};
+  }
+  return _createClass(Request, [{
+    key: "getMethod",
+    value: function getMethod() {
+      return this._method;
+    }
+  }, {
+    key: "getURL",
+    value: function getURL() {
+      return this._url;
+    }
+  }, {
+    key: "setHeader",
+    value: function setHeader(header, value) {
+      this._xhr.setRequestHeader(header, value);
+      this._headers[header] = value;
+    }
+  }, {
+    key: "getHeader",
+    value: function getHeader(header) {
+      return this._headers[header];
+    }
+  }, {
+    key: "setProgressHandler",
+    value: function setProgressHandler(progressHandler) {
+      // Test support for progress events before attaching an event listener
+      if (!('upload' in this._xhr)) {
+        return;
+      }
+      this._xhr.upload.onprogress = function (e) {
+        if (!e.lengthComputable) {
+          return;
+        }
+        progressHandler(e.loaded);
+      };
+    }
+  }, {
+    key: "send",
+    value: function send() {
+      var _this = this;
+      var body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+      return new Promise(function (resolve, reject) {
+        _this._xhr.onload = function () {
+          resolve(new Response(_this._xhr));
+        };
+        _this._xhr.onerror = function (err) {
+          reject(err);
+        };
+        _this._xhr.send(body);
+      });
+    }
+  }, {
+    key: "abort",
+    value: function abort() {
+      this._xhr.abort();
+      return Promise.resolve();
+    }
+  }, {
+    key: "getUnderlyingObject",
+    value: function getUnderlyingObject() {
+      return this._xhr;
+    }
+  }]);
+}();
+var Response = /*#__PURE__*/function () {
+  function Response(xhr) {
+    _classCallCheck(this, Response);
+    this._xhr = xhr;
+  }
+  return _createClass(Response, [{
+    key: "getStatus",
+    value: function getStatus() {
+      return this._xhr.status;
+    }
+  }, {
+    key: "getHeader",
+    value: function getHeader(header) {
+      return this._xhr.getResponseHeader(header);
+    }
+  }, {
+    key: "getBody",
+    value: function getBody() {
+      return this._xhr.responseText;
+    }
+  }, {
+    key: "getUnderlyingObject",
+    value: function getUnderlyingObject() {
+      return this._xhr;
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.esm/browser/index.js

@@ -0,0 +1,50 @@
+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 _callSuper(t, o, e) { return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e)); }
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
+function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
+function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
+function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+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); }
+import DetailedError from '../error.js';
+import { enableDebugLog } from '../logger.js';
+import NoopUrlStorage from '../noopUrlStorage.js';
+import BaseUpload from '../upload.js';
+import FileReader from './fileReader.js';
+import fingerprint from './fileSignature.js';
+import DefaultHttpStack from './httpStack.js';
+import { WebStorageUrlStorage, canStoreURLs } from './urlStorage.js';
+var defaultOptions = _objectSpread(_objectSpread({}, BaseUpload.defaultOptions), {}, {
+  httpStack: new DefaultHttpStack(),
+  fileReader: new FileReader(),
+  urlStorage: canStoreURLs ? new WebStorageUrlStorage() : new NoopUrlStorage(),
+  fingerprint: fingerprint
+});
+var Upload = /*#__PURE__*/function (_BaseUpload) {
+  function Upload() {
+    var file = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    _classCallCheck(this, Upload);
+    options = _objectSpread(_objectSpread({}, defaultOptions), options);
+    return _callSuper(this, Upload, [file, options]);
+  }
+  _inherits(Upload, _BaseUpload);
+  return _createClass(Upload, null, [{
+    key: "terminate",
+    value: function terminate(url) {
+      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+      options = _objectSpread(_objectSpread({}, defaultOptions), options);
+      return BaseUpload.terminate(url, options);
+    }
+  }]);
+}(BaseUpload); // Note: We don't reference `window` here because these classes also exist in a Web Worker's context.
+var isSupported = typeof XMLHttpRequest === 'function' && typeof Blob === 'function' && typeof Blob.prototype.slice === 'function';
+export { Upload, canStoreURLs, defaultOptions, isSupported, enableDebugLog, DefaultHttpStack, DetailedError };

frontend/node_modules/tus-js-client/lib.esm/browser/isReactNative.js

@@ -0,0 +1,4 @@
+var isReactNative = function isReactNative() {
+  return typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative';
+};
+export default isReactNative;

frontend/node_modules/tus-js-client/lib.esm/browser/sources/FileSource.js

@@ -0,0 +1,39 @@
+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); }
+import isCordova from './isCordova.js';
+import readAsByteArray from './readAsByteArray.js';
+var FileSource = /*#__PURE__*/function () {
+  // Make this.size a method
+  function FileSource(file) {
+    _classCallCheck(this, FileSource);
+    this._file = file;
+    this.size = file.size;
+  }
+  return _createClass(FileSource, [{
+    key: "slice",
+    value: function slice(start, end) {
+      // In Apache Cordova applications, a File must be resolved using
+      // FileReader instances, see
+      // https://cordova.apache.org/docs/en/8.x/reference/cordova-plugin-file/index.html#read-a-file
+      if (isCordova()) {
+        return readAsByteArray(this._file.slice(start, end));
+      }
+      var value = this._file.slice(start, end);
+      var done = end >= this.size;
+      return Promise.resolve({
+        value: value,
+        done: done
+      });
+    }
+  }, {
+    key: "close",
+    value: function close() {
+      // Nothing to do here since we don't need to release any resources.
+    }
+  }]);
+}();
+export { FileSource as default };

frontend/node_modules/tus-js-client/lib.esm/browser/sources/StreamSource.js

@@ -0,0 +1,106 @@
+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); }
+function len(blobOrArray) {
+  if (blobOrArray === undefined) return 0;
+  if (blobOrArray.size !== undefined) return blobOrArray.size;
+  return blobOrArray.length;
+}
+
+/*
+  Typed arrays and blobs don't have a concat method.
+  This function helps StreamSource accumulate data to reach chunkSize.
+*/
+function concat(a, b) {
+  if (a.concat) {
+    // Is `a` an Array?
+    return a.concat(b);
+  }
+  if (a instanceof Blob) {
+    return new Blob([a, b], {
+      type: a.type
+    });
+  }
+  if (a.set) {
+    // Is `a` a typed array?
+    var c = new a.constructor(a.length + b.length);
+    c.set(a);
+    c.set(b, a.length);
+    return c;
+  }
+  throw new Error('Unknown data type');
+}
+var StreamSource = /*#__PURE__*/function () {
+  function StreamSource(reader) {
+    _classCallCheck(this, StreamSource);
+    this._buffer = undefined;
+    this._bufferOffset = 0;
+    this._reader = reader;
+    this._done = false;
+  }
+  return _createClass(StreamSource, [{
+    key: "slice",
+    value: function slice(start, end) {
+      if (start < this._bufferOffset) {
+        return Promise.reject(new Error("Requested data is before the reader's current offset"));
+      }
+      return this._readUntilEnoughDataOrDone(start, end);
+    }
+  }, {
+    key: "_readUntilEnoughDataOrDone",
+    value: function _readUntilEnoughDataOrDone(start, end) {
+      var _this = this;
+      var hasEnoughData = end <= this._bufferOffset + len(this._buffer);
+      if (this._done || hasEnoughData) {
+        var value = this._getDataFromBuffer(start, end);
+        var done = value == null ? this._done : false;
+        return Promise.resolve({
+          value: value,
+          done: done
+        });
+      }
+      return this._reader.read().then(function (_ref) {
+        var value = _ref.value,
+          done = _ref.done;
+        if (done) {
+          _this._done = true;
+        } else if (_this._buffer === undefined) {
+          _this._buffer = value;
+        } else {
+          _this._buffer = concat(_this._buffer, value);
+        }
+        return _this._readUntilEnoughDataOrDone(start, end);
+      });
+    }
+  }, {
+    key: "_getDataFromBuffer",
+    value: function _getDataFromBuffer(start, end) {
+      // Remove data from buffer before `start`.
+      // Data might be reread from the buffer if an upload fails, so we can only
+      // safely delete data when it comes *before* what is currently being read.
+      if (start > this._bufferOffset) {
+        this._buffer = this._buffer.slice(start - this._bufferOffset);
+        this._bufferOffset = start;
+      }
+      // If the buffer is empty after removing old data, all data has been read.
+      var hasAllDataBeenRead = len(this._buffer) === 0;
+      if (this._done && hasAllDataBeenRead) {
+        return null;
+      }
+      // We already removed data before `start`, so we just return the first
+      // chunk from the buffer.
+      return this._buffer.slice(0, end - start);
+    }
+  }, {
+    key: "close",
+    value: function close() {
+      if (this._reader.cancel) {
+        this._reader.cancel();
+      }
+    }
+  }]);
+}();
+export { StreamSource as default };

frontend/node_modules/tus-js-client/lib.esm/browser/sources/isCordova.js

@@ -0,0 +1,4 @@
+var isCordova = function isCordova() {
+  return typeof window !== 'undefined' && (typeof window.PhoneGap !== 'undefined' || typeof window.Cordova !== 'undefined' || typeof window.cordova !== 'undefined');
+};
+export default isCordova;

frontend/node_modules/tus-js-client/lib.esm/browser/sources/readAsByteArray.js

@@ -0,0 +1,20 @@
+/**
+ * readAsByteArray converts a File object to a Uint8Array.
+ * This function is only used on the Apache Cordova platform.
+ * See https://cordova.apache.org/docs/en/latest/reference/cordova-plugin-file/index.html#read-a-file
+ */
+export default function readAsByteArray(chunk) {
+  return new Promise(function (resolve, reject) {
+    var reader = new FileReader();
+    reader.onload = function () {
+      var value = new Uint8Array(reader.result);
+      resolve({
+        value: value
+      });
+    };
+    reader.onerror = function (err) {
+      reject(err);
+    };
+    reader.readAsArrayBuffer(chunk);
+  });
+}

frontend/node_modules/tus-js-client/lib.esm/browser/uriToBlob.js

@@ -0,0 +1,20 @@
+/**
+ * uriToBlob resolves a URI to a Blob object. This is used for
+ * React Native to retrieve a file (identified by a file://
+ * URI) as a blob.
+ */
+export default function uriToBlob(uri) {
+  return new Promise(function (resolve, reject) {
+    var xhr = new XMLHttpRequest();
+    xhr.responseType = 'blob';
+    xhr.onload = function () {
+      var blob = xhr.response;
+      resolve(blob);
+    };
+    xhr.onerror = function (err) {
+      reject(err);
+    };
+    xhr.open('GET', uri);
+    xhr.send();
+  });
+}

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

@@ -0,0 +1,80 @@
+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;
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.esm/error.js

@@ -0,0 +1,45 @@
+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 _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); }
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+function _callSuper(t, o, e) { return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e)); }
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }
+function _wrapNativeSuper(Class) { var _cache = typeof Map === "function" ? new Map() : undefined; _wrapNativeSuper = function _wrapNativeSuper(Class) { if (Class === null || !_isNativeFunction(Class)) return Class; if (typeof Class !== "function") { throw new TypeError("Super expression must either be null or a function"); } if (typeof _cache !== "undefined") { if (_cache.has(Class)) return _cache.get(Class); _cache.set(Class, Wrapper); } function Wrapper() { return _construct(Class, arguments, _getPrototypeOf(this).constructor); } Wrapper.prototype = Object.create(Class.prototype, { constructor: { value: Wrapper, enumerable: false, writable: true, configurable: true } }); return _setPrototypeOf(Wrapper, Class); }; return _wrapNativeSuper(Class); }
+function _construct(t, e, r) { if (_isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments); var o = [null]; o.push.apply(o, e); var p = new (t.bind.apply(t, o))(); return r && _setPrototypeOf(p, r.prototype), p; }
+function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
+function _isNativeFunction(fn) { try { return Function.toString.call(fn).indexOf("[native code]") !== -1; } catch (e) { return typeof fn === "function"; } }
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
+var DetailedError = /*#__PURE__*/function (_Error) {
+  function DetailedError(message) {
+    var _this;
+    var causingErr = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
+    var req = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
+    var res = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+    _classCallCheck(this, DetailedError);
+    _this = _callSuper(this, DetailedError, [message]);
+    _this.originalRequest = req;
+    _this.originalResponse = res;
+    _this.causingError = causingErr;
+    if (causingErr != null) {
+      message += ", caused by ".concat(causingErr.toString());
+    }
+    if (req != null) {
+      var requestId = req.getHeader('X-Request-ID') || 'n/a';
+      var method = req.getMethod();
+      var url = req.getURL();
+      var status = res ? res.getStatus() : 'n/a';
+      var body = res ? res.getBody() || '' : 'n/a';
+      message += ", originated from request (method: ".concat(method, ", url: ").concat(url, ", response code: ").concat(status, ", response text: ").concat(body, ", request id: ").concat(requestId, ")");
+    }
+    _this.message = message;
+    return _this;
+  }
+  _inherits(DetailedError, _Error);
+  return _createClass(DetailedError);
+}( /*#__PURE__*/_wrapNativeSuper(Error));
+export default DetailedError;

frontend/node_modules/tus-js-client/lib.esm/logger.js

@@ -0,0 +1,8 @@
+var isEnabled = false;
+export function enableDebugLog() {
+  isEnabled = true;
+}
+export function log(msg) {
+  if (!isEnabled) return;
+  console.log(msg);
+}

frontend/node_modules/tus-js-client/lib.esm/node/fileReader.js

@@ -0,0 +1,36 @@
+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); }
+import { ReadStream } from 'fs';
+import isStream from 'is-stream';
+import BufferSource from './sources/BufferSource.js';
+import getFileSource from './sources/FileSource.js';
+import StreamSource from './sources/StreamSource.js';
+var FileReader = /*#__PURE__*/function () {
+  function FileReader() {
+    _classCallCheck(this, FileReader);
+  }
+  return _createClass(FileReader, [{
+    key: "openFile",
+    value: function openFile(input, chunkSize) {
+      if (Buffer.isBuffer(input)) {
+        return Promise.resolve(new BufferSource(input));
+      }
+      if (input instanceof ReadStream && input.path != null) {
+        return getFileSource(input);
+      }
+      if (isStream.readable(input)) {
+        chunkSize = Number(chunkSize);
+        if (!Number.isFinite(chunkSize)) {
+          return Promise.reject(new Error('cannot create source for stream without a finite value for the `chunkSize` option; specify a chunkSize to control the memory consumption'));
+        }
+        return Promise.resolve(new StreamSource(input));
+      }
+      return Promise.reject(new Error('source object may only be an instance of Buffer or Readable in this environment'));
+    }
+  }]);
+}();
+export { FileReader as default };

frontend/node_modules/tus-js-client/lib.esm/node/fileSignature.js

@@ -0,0 +1,36 @@
+import { createHash } from 'crypto';
+import * as fs from 'fs';
+import * as path from 'path';
+
+/**
+ * Generate a fingerprint for a file which will be used the store the endpoint
+ *
+ * @param {File} file
+ * @param {Object} options
+ */
+export default function fingerprint(file, options) {
+  if (Buffer.isBuffer(file)) {
+    // create MD5 hash for buffer type
+    var blockSize = 64 * 1024; // 64kb
+    var content = file.slice(0, Math.min(blockSize, file.length));
+    var hash = createHash('md5').update(content).digest('hex');
+    var ret = ['node-buffer', hash, file.length, options.endpoint].join('-');
+    return Promise.resolve(ret);
+  }
+  if (file instanceof fs.ReadStream && file.path != null) {
+    return new Promise(function (resolve, reject) {
+      var name = path.resolve(file.path);
+      fs.stat(file.path, function (err, info) {
+        if (err) {
+          reject(err);
+          return;
+        }
+        var ret = ['node-file', name, info.size, info.mtime.getTime(), options.endpoint].join('-');
+        resolve(ret);
+      });
+    });
+  }
+
+  // fingerprint cannot be computed for file input type
+  return Promise.resolve(null);
+}

frontend/node_modules/tus-js-client/lib.esm/node/httpStack.js

@@ -0,0 +1,237 @@
+function _callSuper(t, o, e) { return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e)); }
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
+function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
+function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
+function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+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); }
+// The url.parse method is superseeded by the url.URL constructor,
+// but it is still included in Node.js
+import * as http from 'http';
+import * as https from 'https';
+import { Readable, Transform } from 'stream';
+import { parse } from 'url';
+import throttle from 'lodash.throttle';
+var NodeHttpStack = /*#__PURE__*/function () {
+  function NodeHttpStack() {
+    var requestOptions = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+    _classCallCheck(this, NodeHttpStack);
+    this._requestOptions = requestOptions;
+  }
+  return _createClass(NodeHttpStack, [{
+    key: "createRequest",
+    value: function createRequest(method, url) {
+      return new Request(method, url, this._requestOptions);
+    }
+  }, {
+    key: "getName",
+    value: function getName() {
+      return 'NodeHttpStack';
+    }
+  }]);
+}();
+export { NodeHttpStack as default };
+var Request = /*#__PURE__*/function () {
+  function Request(method, url, options) {
+    _classCallCheck(this, Request);
+    this._method = method;
+    this._url = url;
+    this._headers = {};
+    this._request = null;
+    this._progressHandler = function () {};
+    this._requestOptions = options || {};
+  }
+  return _createClass(Request, [{
+    key: "getMethod",
+    value: function getMethod() {
+      return this._method;
+    }
+  }, {
+    key: "getURL",
+    value: function getURL() {
+      return this._url;
+    }
+  }, {
+    key: "setHeader",
+    value: function setHeader(header, value) {
+      this._headers[header] = value;
+    }
+  }, {
+    key: "getHeader",
+    value: function getHeader(header) {
+      return this._headers[header];
+    }
+  }, {
+    key: "setProgressHandler",
+    value: function setProgressHandler(progressHandler) {
+      this._progressHandler = progressHandler;
+    }
+  }, {
+    key: "send",
+    value: function send() {
+      var _this = this;
+      var body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+      return new Promise(function (resolve, reject) {
+        var options = _objectSpread(_objectSpread(_objectSpread({}, parse(_this._url)), _this._requestOptions), {}, {
+          method: _this._method,
+          headers: _objectSpread(_objectSpread({}, _this._requestOptions.headers || {}), _this._headers)
+        });
+        if (body !== null && body !== void 0 && body.size) {
+          options.headers['Content-Length'] = body.size;
+        }
+        var httpModule = options.protocol === 'https:' ? https : http;
+        _this._request = httpModule.request(options);
+        var req = _this._request;
+        req.on('response', function (res) {
+          var resChunks = [];
+          res.on('data', function (data) {
+            resChunks.push(data);
+          });
+          res.on('end', function () {
+            var responseText = Buffer.concat(resChunks).toString('utf8');
+            resolve(new Response(res, responseText));
+          });
+        });
+        req.on('error', function (err) {
+          reject(err);
+        });
+        if (body instanceof Readable) {
+          // Readable stream are piped through a PassThrough instance, which
+          // counts the number of bytes passed through. This is used, for example,
+          // when an fs.ReadStream is provided to tus-js-client.
+          body.pipe(new ProgressEmitter(_this._progressHandler)).pipe(req);
+        } else if (body instanceof Uint8Array) {
+          // For Buffers and Uint8Arrays (in Node.js all buffers are instances of Uint8Array),
+          // we write chunks of the buffer to the stream and use that to track the progress.
+          // This is used when either a Buffer or a normal readable stream is provided
+          // to tus-js-client.
+          writeBufferToStreamWithProgress(req, body, _this._progressHandler);
+        } else {
+          req.end(body);
+        }
+      });
+    }
+  }, {
+    key: "abort",
+    value: function abort() {
+      if (this._request !== null) this._request.abort();
+      return Promise.resolve();
+    }
+  }, {
+    key: "getUnderlyingObject",
+    value: function getUnderlyingObject() {
+      return this._request;
+    }
+  }]);
+}();
+var Response = /*#__PURE__*/function () {
+  function Response(res, body) {
+    _classCallCheck(this, Response);
+    this._response = res;
+    this._body = body;
+  }
+  return _createClass(Response, [{
+    key: "getStatus",
+    value: function getStatus() {
+      return this._response.statusCode;
+    }
+  }, {
+    key: "getHeader",
+    value: function getHeader(header) {
+      return this._response.headers[header.toLowerCase()];
+    }
+  }, {
+    key: "getBody",
+    value: function getBody() {
+      return this._body;
+    }
+  }, {
+    key: "getUnderlyingObject",
+    value: function getUnderlyingObject() {
+      return this._response;
+    }
+  }]);
+}(); // ProgressEmitter is a simple PassThrough-style transform stream which keeps
+// track of the number of bytes which have been piped through it and will
+// invoke the `onprogress` function whenever new number are available.
+var ProgressEmitter = /*#__PURE__*/function (_Transform) {
+  function ProgressEmitter(onprogress) {
+    var _this2;
+    _classCallCheck(this, ProgressEmitter);
+    _this2 = _callSuper(this, ProgressEmitter);
+
+    // The _onprogress property will be invoked, whenever a chunk is piped
+    // through this transformer. Since chunks are usually quite small (64kb),
+    // these calls can occur frequently, especially when you have a good
+    // connection to the remote server. Therefore, we are throtteling them to
+    // prevent accessive function calls.
+    _this2._onprogress = throttle(onprogress, 100, {
+      leading: true,
+      trailing: false
+    });
+    _this2._position = 0;
+    return _this2;
+  }
+  _inherits(ProgressEmitter, _Transform);
+  return _createClass(ProgressEmitter, [{
+    key: "_transform",
+    value: function _transform(chunk, _encoding, callback) {
+      this._position += chunk.length;
+      this._onprogress(this._position);
+      callback(null, chunk);
+    }
+  }]);
+}(Transform); // writeBufferToStreamWithProgress writes chunks from `source` (either a
+// Buffer or Uint8Array) to the readable stream `stream`.
+// The size of the chunk depends on the stream's highWaterMark to fill the
+// stream's internal buffer as best as possible.
+// If the internal buffer is full, the callback `onprogress` will be invoked
+// to notify about the write progress. Writing will be resumed once the internal
+// buffer is empty, as indicated by the emitted `drain` event.
+// See https://nodejs.org/docs/latest/api/stream.html#buffering for more details
+// on the buffering behavior of streams.
+var writeBufferToStreamWithProgress = function writeBufferToStreamWithProgress(stream, source, onprogress) {
+  onprogress = throttle(onprogress, 100, {
+    leading: true,
+    trailing: false
+  });
+  var offset = 0;
+  function writeNextChunk() {
+    // Take at most the amount of bytes from highWaterMark. This should fill the streams
+    // internal buffer already.
+    var chunkSize = Math.min(stream.writableHighWaterMark, source.length - offset);
+
+    // Note: We use subarray instead of slice because it works without copying data for
+    // Buffers and Uint8Arrays.
+    var chunk = source.subarray(offset, offset + chunkSize);
+    offset += chunk.length;
+
+    // `write` returns true if the internal buffer is not full and we should write more.
+    // If the stream is destroyed because the request is aborted, it will return false
+    // and no 'drain' event is emitted, so won't continue writing data.
+    var canContinue = stream.write(chunk);
+    if (!canContinue) {
+      // If the buffer is full, wait for the 'drain' event to write more data.
+      stream.once('drain', writeNextChunk);
+      onprogress(offset);
+    } else if (offset < source.length) {
+      // If there's still data to write and the buffer is not full, write next chunk.
+      writeNextChunk();
+    } else {
+      // If all data has been written, close the stream if needed, and emit a 'finish' event.
+      stream.end();
+    }
+  }
+
+  // Start writing the first chunk.
+  writeNextChunk();
+};

frontend/node_modules/tus-js-client/lib.esm/node/index.js

@@ -0,0 +1,54 @@
+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 _callSuper(t, o, e) { return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e)); }
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
+function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
+function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
+function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+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); }
+import DetailedError from '../error.js';
+import { enableDebugLog } from '../logger.js';
+import NoopUrlStorage from '../noopUrlStorage.js';
+import BaseUpload from '../upload.js';
+import FileReader from './fileReader.js';
+import fingerprint from './fileSignature.js';
+import DefaultHttpStack from './httpStack.js';
+import StreamSource from './sources/StreamSource.js';
+import { FileUrlStorage, canStoreURLs } from './urlStorage.js';
+var defaultOptions = _objectSpread(_objectSpread({}, BaseUpload.defaultOptions), {}, {
+  httpStack: new DefaultHttpStack(),
+  fileReader: new FileReader(),
+  urlStorage: new NoopUrlStorage(),
+  fingerprint: fingerprint
+});
+var Upload = /*#__PURE__*/function (_BaseUpload) {
+  function Upload() {
+    var file = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    _classCallCheck(this, Upload);
+    options = _objectSpread(_objectSpread({}, defaultOptions), options);
+    return _callSuper(this, Upload, [file, options]);
+  }
+  _inherits(Upload, _BaseUpload);
+  return _createClass(Upload, null, [{
+    key: "terminate",
+    value: function terminate(url) {
+      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+      options = _objectSpread(_objectSpread({}, defaultOptions), options);
+      return BaseUpload.terminate(url, options);
+    }
+  }]);
+}(BaseUpload); // The Node.js environment does not have restrictions which may cause
+// tus-js-client not to function.
+var isSupported = true;
+export { Upload, defaultOptions, isSupported,
+// Make FileUrlStorage module available as it will not be set by default.
+FileUrlStorage, canStoreURLs, enableDebugLog, DefaultHttpStack, DetailedError, StreamSource };

frontend/node_modules/tus-js-client/lib.esm/node/sources/BufferSource.js

@@ -0,0 +1,29 @@
+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 BufferSource = /*#__PURE__*/function () {
+  function BufferSource(buffer) {
+    _classCallCheck(this, BufferSource);
+    this._buffer = buffer;
+    this.size = buffer.length;
+  }
+  return _createClass(BufferSource, [{
+    key: "slice",
+    value: function slice(start, end) {
+      var value = this._buffer.slice(start, end);
+      value.size = value.length;
+      var done = end >= this.size;
+      return Promise.resolve({
+        value: value,
+        done: done
+      });
+    }
+  }, {
+    key: "close",
+    value: function close() {}
+  }]);
+}();
+export { BufferSource as default };

frontend/node_modules/tus-js-client/lib.esm/node/urlStorage.js

@@ -0,0 +1,169 @@
+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); }
+import { readFile, writeFile } from 'fs';
+import combineErrors from 'combine-errors';
+import * as lockfile from 'proper-lockfile';
+export var canStoreURLs = true;
+export var FileUrlStorage = /*#__PURE__*/function () {
+  function FileUrlStorage(filePath) {
+    _classCallCheck(this, FileUrlStorage);
+    this.path = filePath;
+  }
+  return _createClass(FileUrlStorage, [{
+    key: "findAllUploads",
+    value: function findAllUploads() {
+      var _this = this;
+      return new Promise(function (resolve, reject) {
+        _this._getItems('tus::', function (err, results) {
+          if (err) reject(err);else resolve(results);
+        });
+      });
+    }
+  }, {
+    key: "findUploadsByFingerprint",
+    value: function findUploadsByFingerprint(fingerprint) {
+      var _this2 = this;
+      return new Promise(function (resolve, reject) {
+        _this2._getItems("tus::".concat(fingerprint), function (err, results) {
+          if (err) reject(err);else resolve(results);
+        });
+      });
+    }
+  }, {
+    key: "removeUpload",
+    value: function removeUpload(urlStorageKey) {
+      var _this3 = this;
+      return new Promise(function (resolve, reject) {
+        _this3._removeItem(urlStorageKey, function (err) {
+          if (err) reject(err);else resolve();
+        });
+      });
+    }
+  }, {
+    key: "addUpload",
+    value: function addUpload(fingerprint, upload) {
+      var _this4 = this;
+      var id = Math.round(Math.random() * 1e12);
+      var key = "tus::".concat(fingerprint, "::").concat(id);
+      return new Promise(function (resolve, reject) {
+        _this4._setItem(key, upload, function (err) {
+          if (err) reject(err);else resolve(key);
+        });
+      });
+    }
+  }, {
+    key: "_setItem",
+    value: function _setItem(key, value, cb) {
+      var _this5 = this;
+      lockfile.lock(this.path, this._lockfileOptions()).then(function (release) {
+        cb = _this5._releaseAndCb(release, cb);
+        _this5._getData(function (err, data) {
+          if (err) {
+            cb(err);
+            return;
+          }
+          data[key] = value;
+          _this5._writeData(data, function (err2) {
+            return cb(err2);
+          });
+        });
+      })["catch"](cb);
+    }
+  }, {
+    key: "_getItems",
+    value: function _getItems(prefix, cb) {
+      this._getData(function (err, data) {
+        if (err) {
+          cb(err);
+          return;
+        }
+        var results = Object.keys(data).filter(function (key) {
+          return key.startsWith(prefix);
+        }).map(function (key) {
+          var obj = data[key];
+          obj.urlStorageKey = key;
+          return obj;
+        });
+        cb(null, results);
+      });
+    }
+  }, {
+    key: "_removeItem",
+    value: function _removeItem(key, cb) {
+      var _this6 = this;
+      lockfile.lock(this.path, this._lockfileOptions()).then(function (release) {
+        cb = _this6._releaseAndCb(release, cb);
+        _this6._getData(function (err, data) {
+          if (err) {
+            cb(err);
+            return;
+          }
+          delete data[key];
+          _this6._writeData(data, function (err2) {
+            return cb(err2);
+          });
+        });
+      })["catch"](cb);
+    }
+  }, {
+    key: "_lockfileOptions",
+    value: function _lockfileOptions() {
+      return {
+        realpath: false,
+        retries: {
+          retries: 5,
+          minTimeout: 20
+        }
+      };
+    }
+  }, {
+    key: "_releaseAndCb",
+    value: function _releaseAndCb(release, cb) {
+      return function (err) {
+        if (err) {
+          release().then(function () {
+            return cb(err);
+          })["catch"](function (releaseErr) {
+            return cb(combineErrors([err, releaseErr]));
+          });
+          return;
+        }
+        release().then(cb)["catch"](cb);
+      };
+    }
+  }, {
+    key: "_writeData",
+    value: function _writeData(data, cb) {
+      var opts = {
+        encoding: 'utf8',
+        mode: 432,
+        flag: 'w'
+      };
+      writeFile(this.path, JSON.stringify(data), opts, function (err) {
+        return cb(err);
+      });
+    }
+  }, {
+    key: "_getData",
+    value: function _getData(cb) {
+      readFile(this.path, 'utf8', function (err, data) {
+        if (err) {
+          // return empty data if file does not exist
+          if (err.code === 'ENOENT') cb(null, {});else cb(err);
+          return;
+        }
+        try {
+          data = !data.trim().length ? {} : JSON.parse(data);
+        } catch (error) {
+          cb(error);
+          return;
+        }
+        cb(null, data);
+      });
+    }
+  }]);
+}();

frontend/node_modules/tus-js-client/lib.esm/noopUrlStorage.js

@@ -0,0 +1,33 @@
+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 NoopUrlStorage = /*#__PURE__*/function () {
+  function NoopUrlStorage() {
+    _classCallCheck(this, NoopUrlStorage);
+  }
+  return _createClass(NoopUrlStorage, [{
+    key: "listAllUploads",
+    value: function listAllUploads() {
+      return Promise.resolve([]);
+    }
+  }, {
+    key: "findUploadsByFingerprint",
+    value: function findUploadsByFingerprint(_fingerprint) {
+      return Promise.resolve([]);
+    }
+  }, {
+    key: "removeUpload",
+    value: function removeUpload(_urlStorageKey) {
+      return Promise.resolve();
+    }
+  }, {
+    key: "addUpload",
+    value: function addUpload(_fingerprint, _upload) {
+      return Promise.resolve(null);
+    }
+  }]);
+}();
+export { NoopUrlStorage as default };

frontend/node_modules/tus-js-client/lib.esm/uuid.js

@@ -0,0 +1,19 @@
+/**
+ * Generate a UUID v4 based on random numbers. We intentioanlly use the less
+ * secure Math.random function here since the more secure crypto.getRandomNumbers
+ * is not available on all platforms.
+ * This is not a problem for us since we use the UUID only for generating a
+ * request ID, so we can correlate server logs to client errors.
+ *
+ * This function is taken from following site:
+ * https://stackoverflow.com/questions/105034/create-guid-uuid-in-javascript
+ *
+ * @return {string} The generate UUID
+ */
+export default function uuid() {
+  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
+    var r = Math.random() * 16 | 0;
+    var v = c === 'x' ? r : r & 0x3 | 0x8;
+    return v.toString(16);
+  });
+}

frontend/node_modules/tus-js-client/lib/browser/fileReader.js

@@ -0,0 +1,51 @@
+import isReactNative from './isReactNative.js'
+import uriToBlob from './uriToBlob.js'
+
+import FileSource from './sources/FileSource.js'
+import StreamSource from './sources/StreamSource.js'
+
+export default class FileReader {
+  async openFile(input, chunkSize) {
+    // In React Native, when user selects a file, instead of a File or Blob,
+    // you usually get a file object {} with a uri property that contains
+    // a local path to the file. We use XMLHttpRequest to fetch
+    // the file blob, before uploading with tus.
+    if (isReactNative() && input && typeof input.uri !== 'undefined') {
+      try {
+        const blob = await uriToBlob(input.uri)
+        return new FileSource(blob)
+      } catch (err) {
+        throw new Error(
+          `tus: cannot fetch \`file.uri\` as Blob, make sure the uri is correct and accessible. ${err}`,
+        )
+      }
+    }
+
+    // Since we emulate the Blob type in our tests (not all target browsers
+    // support it), we cannot use `instanceof` for testing whether the input value
+    // can be handled. Instead, we simply check is the slice() function and the
+    // size property are available.
+    if (typeof input.slice === 'function' && typeof input.size !== 'undefined') {
+      return Promise.resolve(new FileSource(input))
+    }
+
+    if (typeof input.read === 'function') {
+      chunkSize = Number(chunkSize)
+      if (!Number.isFinite(chunkSize)) {
+        return Promise.reject(
+          new Error(
+            'cannot create source for stream without a finite value for the `chunkSize` option',
+          ),
+        )
+      }
+
+      return Promise.resolve(new StreamSource(input, chunkSize))
+    }
+
+    return Promise.reject(
+      new Error(
+        'source object may only be an instance of File, Blob, or Reader in this environment',
+      ),
+    )
+  }
+}

frontend/node_modules/tus-js-client/lib/browser/fileSignature.js

@@ -0,0 +1,41 @@
+import isReactNative from './isReactNative.js'
+
+// TODO: Differenciate between input types
+
+/**
+ * Generate a fingerprint for a file which will be used the store the endpoint
+ *
+ * @param {File} file
+ * @param {Object} options
+ * @param {Function} callback
+ */
+export default function fingerprint(file, options) {
+  if (isReactNative()) {
+    return Promise.resolve(reactNativeFingerprint(file, options))
+  }
+
+  return Promise.resolve(
+    ['tus-br', file.name, file.type, file.size, file.lastModified, options.endpoint].join('-'),
+  )
+}
+
+function reactNativeFingerprint(file, options) {
+  const exifHash = file.exif ? hashCode(JSON.stringify(file.exif)) : 'noexif'
+  return ['tus-rn', file.name || 'noname', file.size || 'nosize', exifHash, options.endpoint].join(
+    '/',
+  )
+}
+
+function hashCode(str) {
+  // from https://stackoverflow.com/a/8831937/151666
+  let hash = 0
+  if (str.length === 0) {
+    return hash
+  }
+  for (let i = 0; i < str.length; i++) {
+    const char = str.charCodeAt(i)
+    hash = (hash << 5) - hash + char
+    hash &= hash // Convert to 32bit integer
+  }
+  return hash
+}

frontend/node_modules/tus-js-client/lib/browser/httpStack.js

@@ -0,0 +1,97 @@
+export default class XHRHttpStack {
+  createRequest(method, url) {
+    return new Request(method, url)
+  }
+
+  getName() {
+    return 'XHRHttpStack'
+  }
+}
+
+class Request {
+  constructor(method, url) {
+    this._xhr = new XMLHttpRequest()
+    this._xhr.open(method, url, true)
+
+    this._method = method
+    this._url = url
+    this._headers = {}
+  }
+
+  getMethod() {
+    return this._method
+  }
+
+  getURL() {
+    return this._url
+  }
+
+  setHeader(header, value) {
+    this._xhr.setRequestHeader(header, value)
+    this._headers[header] = value
+  }
+
+  getHeader(header) {
+    return this._headers[header]
+  }
+
+  setProgressHandler(progressHandler) {
+    // Test support for progress events before attaching an event listener
+    if (!('upload' in this._xhr)) {
+      return
+    }
+
+    this._xhr.upload.onprogress = (e) => {
+      if (!e.lengthComputable) {
+        return
+      }
+
+      progressHandler(e.loaded)
+    }
+  }
+
+  send(body = null) {
+    return new Promise((resolve, reject) => {
+      this._xhr.onload = () => {
+        resolve(new Response(this._xhr))
+      }
+
+      this._xhr.onerror = (err) => {
+        reject(err)
+      }
+
+      this._xhr.send(body)
+    })
+  }
+
+  abort() {
+    this._xhr.abort()
+    return Promise.resolve()
+  }
+
+  getUnderlyingObject() {
+    return this._xhr
+  }
+}
+
+class Response {
+  constructor(xhr) {
+    this._xhr = xhr
+  }
+
+  getStatus() {
+    return this._xhr.status
+  }
+
+  getHeader(header) {
+    return this._xhr.getResponseHeader(header)
+  }
+
+  getBody() {
+    return this._xhr.responseText
+  }
+
+  getUnderlyingObject() {
+    return this._xhr
+  }
+}

frontend/node_modules/tus-js-client/lib/browser/index.js

@@ -0,0 +1,45 @@
+import DetailedError from '../error.js'
+import { enableDebugLog } from '../logger.js'
+import NoopUrlStorage from '../noopUrlStorage.js'
+import BaseUpload from '../upload.js'
+
+import FileReader from './fileReader.js'
+import fingerprint from './fileSignature.js'
+import DefaultHttpStack from './httpStack.js'
+import { WebStorageUrlStorage, canStoreURLs } from './urlStorage.js'
+
+const defaultOptions = {
+  ...BaseUpload.defaultOptions,
+  httpStack: new DefaultHttpStack(),
+  fileReader: new FileReader(),
+  urlStorage: canStoreURLs ? new WebStorageUrlStorage() : new NoopUrlStorage(),
+  fingerprint,
+}
+
+class Upload extends BaseUpload {
+  constructor(file = null, options = {}) {
+    options = { ...defaultOptions, ...options }
+    super(file, options)
+  }
+
+  static terminate(url, options = {}) {
+    options = { ...defaultOptions, ...options }
+    return BaseUpload.terminate(url, options)
+  }
+}
+
+// Note: We don't reference `window` here because these classes also exist in a Web Worker's context.
+const isSupported =
+  typeof XMLHttpRequest === 'function' &&
+  typeof Blob === 'function' &&
+  typeof Blob.prototype.slice === 'function'
+
+export {
+  Upload,
+  canStoreURLs,
+  defaultOptions,
+  isSupported,
+  enableDebugLog,
+  DefaultHttpStack,
+  DetailedError,
+}

frontend/node_modules/tus-js-client/lib/browser/isReactNative.js

@@ -0,0 +1,6 @@
+const isReactNative = () =>
+  typeof navigator !== 'undefined' &&
+  typeof navigator.product === 'string' &&
+  navigator.product.toLowerCase() === 'reactnative'
+
+export default isReactNative

frontend/node_modules/tus-js-client/lib/browser/sources/FileSource.js

@@ -0,0 +1,27 @@
+import isCordova from './isCordova.js'
+import readAsByteArray from './readAsByteArray.js'
+
+export default class FileSource {
+  // Make this.size a method
+  constructor(file) {
+    this._file = file
+    this.size = file.size
+  }
+
+  slice(start, end) {
+    // In Apache Cordova applications, a File must be resolved using
+    // FileReader instances, see
+    // https://cordova.apache.org/docs/en/8.x/reference/cordova-plugin-file/index.html#read-a-file
+    if (isCordova()) {
+      return readAsByteArray(this._file.slice(start, end))
+    }
+
+    const value = this._file.slice(start, end)
+    const done = end >= this.size
+    return Promise.resolve({ value, done })
+  }
+
+  close() {
+    // Nothing to do here since we don't need to release any resources.
+  }
+}

frontend/node_modules/tus-js-client/lib/browser/sources/StreamSource.js

@@ -0,0 +1,89 @@
+function len(blobOrArray) {
+  if (blobOrArray === undefined) return 0
+  if (blobOrArray.size !== undefined) return blobOrArray.size
+  return blobOrArray.length
+}
+
+/*
+  Typed arrays and blobs don't have a concat method.
+  This function helps StreamSource accumulate data to reach chunkSize.
+*/
+function concat(a, b) {
+  if (a.concat) {
+    // Is `a` an Array?
+    return a.concat(b)
+  }
+  if (a instanceof Blob) {
+    return new Blob([a, b], { type: a.type })
+  }
+  if (a.set) {
+    // Is `a` a typed array?
+    const c = new a.constructor(a.length + b.length)
+    c.set(a)
+    c.set(b, a.length)
+    return c
+  }
+  throw new Error('Unknown data type')
+}
+
+export default class StreamSource {
+  constructor(reader) {
+    this._buffer = undefined
+    this._bufferOffset = 0
+    this._reader = reader
+    this._done = false
+  }
+
+  slice(start, end) {
+    if (start < this._bufferOffset) {
+      return Promise.reject(new Error("Requested data is before the reader's current offset"))
+    }
+
+    return this._readUntilEnoughDataOrDone(start, end)
+  }
+
+  _readUntilEnoughDataOrDone(start, end) {
+    const hasEnoughData = end <= this._bufferOffset + len(this._buffer)
+    if (this._done || hasEnoughData) {
+      const value = this._getDataFromBuffer(start, end)
+      const done = value == null ? this._done : false
+      return Promise.resolve({ value, done })
+    }
+
+    return this._reader.read().then(({ value, done }) => {
+      if (done) {
+        this._done = true
+      } else if (this._buffer === undefined) {
+        this._buffer = value
+      } else {
+        this._buffer = concat(this._buffer, value)
+      }
+
+      return this._readUntilEnoughDataOrDone(start, end)
+    })
+  }
+
+  _getDataFromBuffer(start, end) {
+    // Remove data from buffer before `start`.
+    // Data might be reread from the buffer if an upload fails, so we can only
+    // safely delete data when it comes *before* what is currently being read.
+    if (start > this._bufferOffset) {
+      this._buffer = this._buffer.slice(start - this._bufferOffset)
+      this._bufferOffset = start
+    }
+    // If the buffer is empty after removing old data, all data has been read.
+    const hasAllDataBeenRead = len(this._buffer) === 0
+    if (this._done && hasAllDataBeenRead) {
+      return null
+    }
+    // We already removed data before `start`, so we just return the first
+    // chunk from the buffer.
+    return this._buffer.slice(0, end - start)
+  }
+
+  close() {
+    if (this._reader.cancel) {
+      this._reader.cancel()
+    }
+  }
+}

frontend/node_modules/tus-js-client/lib/browser/sources/isCordova.js

@@ -0,0 +1,7 @@
+const isCordova = () =>
+  typeof window !== 'undefined' &&
+  (typeof window.PhoneGap !== 'undefined' ||
+    typeof window.Cordova !== 'undefined' ||
+    typeof window.cordova !== 'undefined')
+
+export default isCordova

frontend/node_modules/tus-js-client/lib/browser/sources/readAsByteArray.js

@@ -0,0 +1,18 @@
+/**
+ * readAsByteArray converts a File object to a Uint8Array.
+ * This function is only used on the Apache Cordova platform.
+ * See https://cordova.apache.org/docs/en/latest/reference/cordova-plugin-file/index.html#read-a-file
+ */
+export default function readAsByteArray(chunk) {
+  return new Promise((resolve, reject) => {
+    const reader = new FileReader()
+    reader.onload = () => {
+      const value = new Uint8Array(reader.result)
+      resolve({ value })
+    }
+    reader.onerror = (err) => {
+      reject(err)
+    }
+    reader.readAsArrayBuffer(chunk)
+  })
+}

frontend/node_modules/tus-js-client/lib/browser/uriToBlob.js

@@ -0,0 +1,20 @@
+/**
+ * uriToBlob resolves a URI to a Blob object. This is used for
+ * React Native to retrieve a file (identified by a file://
+ * URI) as a blob.
+ */
+export default function uriToBlob(uri) {
+  return new Promise((resolve, reject) => {
+    const xhr = new XMLHttpRequest()
+    xhr.responseType = 'blob'
+    xhr.onload = () => {
+      const blob = xhr.response
+      resolve(blob)
+    }
+    xhr.onerror = (err) => {
+      reject(err)
+    }
+    xhr.open('GET', uri)
+    xhr.send()
+  })
+}

frontend/node_modules/tus-js-client/lib/browser/urlStorage.js

@@ -0,0 +1,71 @@
+let 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.
+  const key = 'tusSupport'
+  const 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 const canStoreURLs = hasStorage
+
+export class WebStorageUrlStorage {
+  findAllUploads() {
+    const results = this._findEntries('tus::')
+    return Promise.resolve(results)
+  }
+
+  findUploadsByFingerprint(fingerprint) {
+    const results = this._findEntries(`tus::${fingerprint}::`)
+    return Promise.resolve(results)
+  }
+
+  removeUpload(urlStorageKey) {
+    localStorage.removeItem(urlStorageKey)
+    return Promise.resolve()
+  }
+
+  addUpload(fingerprint, upload) {
+    const id = Math.round(Math.random() * 1e12)
+    const key = `tus::${fingerprint}::${id}`
+
+    localStorage.setItem(key, JSON.stringify(upload))
+    return Promise.resolve(key)
+  }
+
+  _findEntries(prefix) {
+    const results = []
+
+    for (let i = 0; i < localStorage.length; i++) {
+      const key = localStorage.key(i)
+      if (key.indexOf(prefix) !== 0) continue
+
+      try {
+        const 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
+  }
+}

frontend/node_modules/tus-js-client/lib/error.js

@@ -0,0 +1,25 @@
+class DetailedError extends Error {
+  constructor(message, causingErr = null, req = null, res = null) {
+    super(message)
+
+    this.originalRequest = req
+    this.originalResponse = res
+    this.causingError = causingErr
+
+    if (causingErr != null) {
+      message += `, caused by ${causingErr.toString()}`
+    }
+
+    if (req != null) {
+      const requestId = req.getHeader('X-Request-ID') || 'n/a'
+      const method = req.getMethod()
+      const url = req.getURL()
+      const status = res ? res.getStatus() : 'n/a'
+      const body = res ? res.getBody() || '' : 'n/a'
+      message += `, originated from request (method: ${method}, url: ${url}, response code: ${status}, response text: ${body}, request id: ${requestId})`
+    }
+    this.message = message
+  }
+}
+
+export default DetailedError

frontend/node_modules/tus-js-client/lib/index.d.ts

@@ -0,0 +1,143 @@
+// Type definitions for tus-js-client
+
+export const isSupported: boolean
+export const canStoreURLs: boolean
+export const defaultOptions: UploadOptions &
+  Required<Pick<UploadOptions, 'httpStack' | 'fileReader' | 'urlStorage' | 'fingerprint'>>
+
+// TODO: Consider using { read: () => Promise<{ done: boolean; value?: any; }>; } as type
+export class Upload {
+  constructor(
+    file: File | Blob | Buffer | Pick<ReadableStreamDefaultReader, 'read'>,
+    options: UploadOptions,
+  )
+
+  file: File | Blob | Buffer | Pick<ReadableStreamDefaultReader, 'read'>
+  options: UploadOptions
+  url: string | null
+
+  static terminate(url: string, options?: UploadOptions): Promise<void>
+  start(): void
+  abort(shouldTerminate?: boolean): Promise<void>
+  findPreviousUploads(): Promise<PreviousUpload[]>
+
+  resumeFromPreviousUpload(previousUpload: PreviousUpload): void
+}
+
+interface UploadOptions {
+  endpoint?: string | null
+
+  uploadUrl?: string | null
+  metadata?: { [key: string]: string }
+  metadataForPartialUploads?: { [key: string]: string }
+  fingerprint?: (file: File, options: UploadOptions) => Promise<string>
+  uploadSize?: number | null
+
+  onProgress?: ((bytesSent: number, bytesTotal: number) => void) | null
+  onChunkComplete?: ((chunkSize: number, bytesAccepted: number, bytesTotal: number) => void) | null
+  onSuccess?: ((payload: OnSuccessPayload) => void) | null
+  onError?: ((error: Error | DetailedError) => void) | null
+  onShouldRetry?:
+    | ((error: DetailedError, retryAttempt: number, options: UploadOptions) => boolean)
+    | null
+  onUploadUrlAvailable?: (() => void) | null
+
+  overridePatchMethod?: boolean
+  headers?: { [key: string]: string }
+  addRequestId?: boolean
+  onBeforeRequest?: (req: HttpRequest) => void | Promise<void>
+  onAfterResponse?: (req: HttpRequest, res: HttpResponse) => void | Promise<void>
+
+  chunkSize?: number
+  retryDelays?: number[] | null
+  parallelUploads?: number
+  parallelUploadBoundaries?: { start: number; end: number }[] | null
+  storeFingerprintForResuming?: boolean
+  removeFingerprintOnSuccess?: boolean
+  uploadLengthDeferred?: boolean
+  uploadDataDuringCreation?: boolean
+
+  urlStorage?: UrlStorage
+  fileReader?: FileReader
+  httpStack?: HttpStack
+}
+
+interface OnSuccessPayload {
+  lastResponse: HttpResponse
+}
+
+interface UrlStorage {
+  findAllUploads(): Promise<PreviousUpload[]>
+  findUploadsByFingerprint(fingerprint: string): Promise<PreviousUpload[]>
+
+  removeUpload(urlStorageKey: string): Promise<void>
+
+  // Returns the URL storage key, which can be used for removing the upload.
+  addUpload(fingerprint: string, upload: PreviousUpload): Promise<string>
+}
+
+interface PreviousUpload {
+  size: number | null
+  metadata: { [key: string]: string }
+  creationTime: string
+  urlStorageKey: string
+  uploadUrl: string | null
+  parallelUploadUrls: string[] | null
+}
+
+interface FileReader {
+  openFile(input: any, chunkSize: number): Promise<FileSource>
+}
+
+interface FileSource {
+  size: number
+  slice(start: number, end: number): Promise<SliceResult>
+  close(): void
+}
+
+interface SliceResult {
+  // Platform-specific data type which must be usable by the HTTP stack as a body.
+  value: any
+  done: boolean
+}
+
+export class DefaultHttpStack implements HttpStack {
+  constructor(options: any)
+  createRequest(method: string, url: string): HttpRequest
+  getName(): string
+}
+
+export interface HttpStack {
+  createRequest(method: string, url: string): HttpRequest
+  getName(): string
+}
+
+export interface HttpRequest {
+  getMethod(): string
+  getURL(): string
+
+  setHeader(header: string, value: string): void
+  getHeader(header: string): string | undefined
+
+  setProgressHandler(handler: (bytesSent: number) => void): void
+  send(body: any): Promise<HttpResponse>
+  abort(): Promise<void>
+
+  // Return an environment specific object, e.g. the XMLHttpRequest object in browsers.
+  getUnderlyingObject(): any
+}
+
+export interface HttpResponse {
+  getStatus(): number
+  getHeader(header: string): string | undefined
+  getBody(): string
+
+  // Return an environment specific object, e.g. the XMLHttpRequest object in browsers.
+  getUnderlyingObject(): any
+}
+
+export class DetailedError extends Error {
+  originalRequest: HttpRequest
+  originalResponse: HttpResponse | null
+  causingError: Error | null
+}

frontend/node_modules/tus-js-client/lib/index.test-d.ts

@@ -0,0 +1,93 @@
+// This is a test file for ensuring that the type definitions in index.d.ts are
+// working correctly. For more details see:
+// https://github.com/SamVerschueren/tsd
+
+import { expectType } from 'tsd'
+import * as tus from '../'
+import type { DetailedError } from '../'
+
+expectType<boolean>(tus.isSupported)
+expectType<boolean>(tus.canStoreURLs)
+
+const file = new File(['foo'], 'foo.txt', {
+  type: 'text/plain',
+})
+
+const upload = new tus.Upload(file, {
+  endpoint: '',
+  fingerprint: (file: File) => Promise.resolve(file.name),
+  metadata: {
+    filename: 'foo.txt',
+  },
+  metadataForPartialUploads: {
+    userId: 'foo123bar',
+  },
+  onProgress: (bytesSent: number, bytesTotal: number) => {
+    const percentage = ((bytesSent / bytesTotal) * 100).toFixed(2)
+    console.log(bytesSent, bytesTotal, `${percentage}%`)
+  },
+  onChunkComplete: (_chunkSize: number, _bytesAccepted: number) => {},
+  onSuccess: (payload: tus.OnSuccessPayload) => {
+    console.log('Download from %s complete', upload.url)
+    console.log('Response header', payload.lastResponse.getHeader('X-Info'))
+  },
+  onError: (error: Error | DetailedError) => {
+    console.error(`Failed because: ${error}`)
+  },
+  headers: { TestHeader: 'TestValue' },
+  chunkSize: 100,
+  uploadUrl: '',
+  uploadSize: 50,
+  overridePatchMethod: true,
+  retryDelays: [10, 20, 50],
+  removeFingerprintOnSuccess: true,
+  parallelUploads: 42,
+  parallelUploadBoundaries: [
+    { start: 0, end: 1 },
+    { start: 1, end: 11 },
+  ],
+  onAfterResponse: (req: tus.HttpRequest, res: tus.HttpResponse) => {
+    const url = req.getURL()
+    const value = res.getHeader('X-My-Header')
+    console.log(`Request for ${url} responded with ${value}`)
+  },
+})
+
+upload.start()
+
+upload.findPreviousUploads().then((uploads: tus.PreviousUpload[]) => {
+  upload.resumeFromPreviousUpload(uploads[0])
+})
+
+upload.abort()
+upload.abort(true).then(() => {})
+
+const _upload2 = new tus.Upload(file, {
+  endpoint: '',
+})
+
+// const reader = {
+//     read: () => Promise.resolve({ done: true, value: '' }),
+// };
+// const upload3 = new tus.Upload(reader, {
+//     endpoint: '',
+//     uploadLengthDeferred: true,
+// });
+
+fetch('https://www.example.org')
+  .then((response) => response.body)
+  .then((rb) => {
+    if (rb == null) {
+      return
+    }
+
+    const reader = rb.getReader()
+    return new tus.Upload(reader, {
+      endpoint: '',
+      uploadLengthDeferred: true,
+    })
+  })
+
+tus.Upload.terminate('https://myurl.com', {
+  endpoint: '',
+})

frontend/node_modules/tus-js-client/lib/logger.js

@@ -0,0 +1,10 @@
+let isEnabled = false
+
+export function enableDebugLog() {
+  isEnabled = true
+}
+
+export function log(msg) {
+  if (!isEnabled) return
+  console.log(msg)
+}

frontend/node_modules/tus-js-client/lib/node/fileReader.js

@@ -0,0 +1,34 @@
+import { ReadStream } from 'fs'
+import isStream from 'is-stream'
+
+import BufferSource from './sources/BufferSource.js'
+import getFileSource from './sources/FileSource.js'
+import StreamSource from './sources/StreamSource.js'
+
+export default class FileReader {
+  openFile(input, chunkSize) {
+    if (Buffer.isBuffer(input)) {
+      return Promise.resolve(new BufferSource(input))
+    }
+
+    if (input instanceof ReadStream && input.path != null) {
+      return getFileSource(input)
+    }
+
+    if (isStream.readable(input)) {
+      chunkSize = Number(chunkSize)
+      if (!Number.isFinite(chunkSize)) {
+        return Promise.reject(
+          new Error(
+            'cannot create source for stream without a finite value for the `chunkSize` option; specify a chunkSize to control the memory consumption',
+          ),
+        )
+      }
+      return Promise.resolve(new StreamSource(input))
+    }
+
+    return Promise.reject(
+      new Error('source object may only be an instance of Buffer or Readable in this environment'),
+    )
+  }
+}

frontend/node_modules/tus-js-client/lib/node/fileSignature.js

@@ -0,0 +1,39 @@
+import { createHash } from 'crypto'
+import * as fs from 'fs'
+import * as path from 'path'
+
+/**
+ * Generate a fingerprint for a file which will be used the store the endpoint
+ *
+ * @param {File} file
+ * @param {Object} options
+ */
+export default function fingerprint(file, options) {
+  if (Buffer.isBuffer(file)) {
+    // create MD5 hash for buffer type
+    const blockSize = 64 * 1024 // 64kb
+    const content = file.slice(0, Math.min(blockSize, file.length))
+    const hash = createHash('md5').update(content).digest('hex')
+    const ret = ['node-buffer', hash, file.length, options.endpoint].join('-')
+    return Promise.resolve(ret)
+  }
+
+  if (file instanceof fs.ReadStream && file.path != null) {
+    return new Promise((resolve, reject) => {
+      const name = path.resolve(file.path)
+      fs.stat(file.path, (err, info) => {
+        if (err) {
+          reject(err)
+          return
+        }
+
+        const ret = ['node-file', name, info.size, info.mtime.getTime(), options.endpoint].join('-')
+
+        resolve(ret)
+      })
+    })
+  }
+
+  // fingerprint cannot be computed for file input type
+  return Promise.resolve(null)
+}

frontend/node_modules/tus-js-client/lib/node/httpStack.js

@@ -0,0 +1,212 @@
+// The url.parse method is superseeded by the url.URL constructor,
+// but it is still included in Node.js
+import * as http from 'http'
+import * as https from 'https'
+import { Readable, Transform } from 'stream'
+import { parse } from 'url'
+import throttle from 'lodash.throttle'
+
+export default class NodeHttpStack {
+  constructor(requestOptions = {}) {
+    this._requestOptions = requestOptions
+  }
+
+  createRequest(method, url) {
+    return new Request(method, url, this._requestOptions)
+  }
+
+  getName() {
+    return 'NodeHttpStack'
+  }
+}
+
+class Request {
+  constructor(method, url, options) {
+    this._method = method
+    this._url = url
+    this._headers = {}
+    this._request = null
+    this._progressHandler = () => {}
+    this._requestOptions = options || {}
+  }
+
+  getMethod() {
+    return this._method
+  }
+
+  getURL() {
+    return this._url
+  }
+
+  setHeader(header, value) {
+    this._headers[header] = value
+  }
+
+  getHeader(header) {
+    return this._headers[header]
+  }
+
+  setProgressHandler(progressHandler) {
+    this._progressHandler = progressHandler
+  }
+
+  send(body = null) {
+    return new Promise((resolve, reject) => {
+      const options = {
+        ...parse(this._url),
+        ...this._requestOptions,
+
+        method: this._method,
+        headers: {
+          ...(this._requestOptions.headers || {}),
+          ...this._headers,
+        },
+      }
+
+      if (body?.size) {
+        options.headers['Content-Length'] = body.size
+      }
+
+      const httpModule = options.protocol === 'https:' ? https : http
+      this._request = httpModule.request(options)
+      const req = this._request
+      req.on('response', (res) => {
+        const resChunks = []
+        res.on('data', (data) => {
+          resChunks.push(data)
+        })
+
+        res.on('end', () => {
+          const responseText = Buffer.concat(resChunks).toString('utf8')
+          resolve(new Response(res, responseText))
+        })
+      })
+
+      req.on('error', (err) => {
+        reject(err)
+      })
+
+      if (body instanceof Readable) {
+        // Readable stream are piped through a PassThrough instance, which
+        // counts the number of bytes passed through. This is used, for example,
+        // when an fs.ReadStream is provided to tus-js-client.
+        body.pipe(new ProgressEmitter(this._progressHandler)).pipe(req)
+      } else if (body instanceof Uint8Array) {
+        // For Buffers and Uint8Arrays (in Node.js all buffers are instances of Uint8Array),
+        // we write chunks of the buffer to the stream and use that to track the progress.
+        // This is used when either a Buffer or a normal readable stream is provided
+        // to tus-js-client.
+        writeBufferToStreamWithProgress(req, body, this._progressHandler)
+      } else {
+        req.end(body)
+      }
+    })
+  }
+
+  abort() {
+    if (this._request !== null) this._request.abort()
+    return Promise.resolve()
+  }
+
+  getUnderlyingObject() {
+    return this._request
+  }
+}
+
+class Response {
+  constructor(res, body) {
+    this._response = res
+    this._body = body
+  }
+
+  getStatus() {
+    return this._response.statusCode
+  }
+
+  getHeader(header) {
+    return this._response.headers[header.toLowerCase()]
+  }
+
+  getBody() {
+    return this._body
+  }
+
+  getUnderlyingObject() {
+    return this._response
+  }
+}
+
+// ProgressEmitter is a simple PassThrough-style transform stream which keeps
+// track of the number of bytes which have been piped through it and will
+// invoke the `onprogress` function whenever new number are available.
+class ProgressEmitter extends Transform {
+  constructor(onprogress) {
+    super()
+
+    // The _onprogress property will be invoked, whenever a chunk is piped
+    // through this transformer. Since chunks are usually quite small (64kb),
+    // these calls can occur frequently, especially when you have a good
+    // connection to the remote server. Therefore, we are throtteling them to
+    // prevent accessive function calls.
+    this._onprogress = throttle(onprogress, 100, {
+      leading: true,
+      trailing: false,
+    })
+    this._position = 0
+  }
+
+  _transform(chunk, _encoding, callback) {
+    this._position += chunk.length
+    this._onprogress(this._position)
+    callback(null, chunk)
+  }
+}
+
+// writeBufferToStreamWithProgress writes chunks from `source` (either a
+// Buffer or Uint8Array) to the readable stream `stream`.
+// The size of the chunk depends on the stream's highWaterMark to fill the
+// stream's internal buffer as best as possible.
+// If the internal buffer is full, the callback `onprogress` will be invoked
+// to notify about the write progress. Writing will be resumed once the internal
+// buffer is empty, as indicated by the emitted `drain` event.
+// See https://nodejs.org/docs/latest/api/stream.html#buffering for more details
+// on the buffering behavior of streams.
+const writeBufferToStreamWithProgress = (stream, source, onprogress) => {
+  onprogress = throttle(onprogress, 100, {
+    leading: true,
+    trailing: false,
+  })
+
+  let offset = 0
+
+  function writeNextChunk() {
+    // Take at most the amount of bytes from highWaterMark. This should fill the streams
+    // internal buffer already.
+    const chunkSize = Math.min(stream.writableHighWaterMark, source.length - offset)
+
+    // Note: We use subarray instead of slice because it works without copying data for
+    // Buffers and Uint8Arrays.
+    const chunk = source.subarray(offset, offset + chunkSize)
+    offset += chunk.length
+
+    // `write` returns true if the internal buffer is not full and we should write more.
+    // If the stream is destroyed because the request is aborted, it will return false
+    // and no 'drain' event is emitted, so won't continue writing data.
+    const canContinue = stream.write(chunk)
+
+    if (!canContinue) {
+      // If the buffer is full, wait for the 'drain' event to write more data.
+      stream.once('drain', writeNextChunk)
+      onprogress(offset)
+    } else if (offset < source.length) {
+      // If there's still data to write and the buffer is not full, write next chunk.
+      writeNextChunk()
+    } else {
+      // If all data has been written, close the stream if needed, and emit a 'finish' event.
+      stream.end()
+    }
+  }
+
+  // Start writing the first chunk.
+  writeNextChunk()
+}

frontend/node_modules/tus-js-client/lib/node/index.js

@@ -0,0 +1,47 @@
+import DetailedError from '../error.js'
+import { enableDebugLog } from '../logger.js'
+import NoopUrlStorage from '../noopUrlStorage.js'
+import BaseUpload from '../upload.js'
+
+import FileReader from './fileReader.js'
+import fingerprint from './fileSignature.js'
+import DefaultHttpStack from './httpStack.js'
+import StreamSource from './sources/StreamSource.js'
+import { FileUrlStorage, canStoreURLs } from './urlStorage.js'
+
+const defaultOptions = {
+  ...BaseUpload.defaultOptions,
+  httpStack: new DefaultHttpStack(),
+  fileReader: new FileReader(),
+  urlStorage: new NoopUrlStorage(),
+  fingerprint,
+}
+
+class Upload extends BaseUpload {
+  constructor(file = null, options = {}) {
+    options = { ...defaultOptions, ...options }
+    super(file, options)
+  }
+
+  static terminate(url, options = {}) {
+    options = { ...defaultOptions, ...options }
+    return BaseUpload.terminate(url, options)
+  }
+}
+
+// The Node.js environment does not have restrictions which may cause
+// tus-js-client not to function.
+const isSupported = true
+
+export {
+  Upload,
+  defaultOptions,
+  isSupported,
+  // Make FileUrlStorage module available as it will not be set by default.
+  FileUrlStorage,
+  canStoreURLs,
+  enableDebugLog,
+  DefaultHttpStack,
+  DetailedError,
+  StreamSource,
+}

frontend/node_modules/tus-js-client/lib/node/sources/BufferSource.js

@@ -0,0 +1,15 @@
+export default class BufferSource {
+  constructor(buffer) {
+    this._buffer = buffer
+    this.size = buffer.length
+  }
+
+  slice(start, end) {
+    const value = this._buffer.slice(start, end)
+    value.size = value.length
+    const done = end >= this.size
+    return Promise.resolve({ value, done })
+  }
+
+  close() {}
+}

frontend/node_modules/tus-js-client/lib/node/sources/FileSource.js

@@ -0,0 +1,57 @@
+import { createReadStream, promises as fsPromises } from 'fs'
+
+export default async function getFileSource(stream) {
+  const path = stream.path.toString()
+  const { size } = await fsPromises.stat(path)
+
+  // The fs.ReadStream might be configured to not read from the beginning
+  // to the end, but instead from a slice in between. In this case, we consider
+  // that range to indicate the actual uploadable size.
+  // This happens, for example, if a fs.ReadStream is used with the `parallelUploads`
+  // option. There, the ReadStream is sliced into multiple ReadStreams to fit the number
+  // of number of `parallelUploads`. Each ReadStream has `start` and `end` set.
+  // Note: `stream.end` is Infinity by default, so we need the check `isFinite`.
+  // Note: `stream.end` is treated inclusively, so we need to add 1 here.
+  // See the comment in slice() for more context.
+  const start = stream.start ?? 0
+  const end = Number.isFinite(stream.end) ? stream.end + 1 : size
+  const actualSize = end - start
+
+  return new FileSource(stream, path, actualSize)
+}
+
+class FileSource {
+  constructor(stream, path, size) {
+    this._stream = stream
+    this._path = path
+    this.size = size
+  }
+
+  slice(start, end) {
+    // The fs.ReadStream might be configured to not read from the beginning,
+    // but instead start at a different offset. The start value from the caller
+    // does not include the offset, so we need to add this offset to our range later.
+    // This happens, for example, if a fs.ReadStream is used with the `parallelUploads`
+    // option. First, the ReadStream is sliced into multiple ReadStreams to fit the number
+    // of number of `parallelUploads`. Each ReadStream has `start` set.
+    const offset = this._stream.start ?? 0
+
+    const stream = createReadStream(this._path, {
+      start: offset + start,
+      // The `end` option for createReadStream is treated inclusively
+      // (see https://nodejs.org/api/fs.html#fs_fs_createreadstream_path_options).
+      // However, the Buffer#slice(start, end) and also our Source#slice(start, end)
+      // method treat the end range exclusively, so we have to subtract 1.
+      // This prevents an off-by-one error when reporting upload progress.
+      end: offset + end - 1,
+      autoClose: true,
+    })
+    stream.size = Math.min(end - start, this.size)
+    const done = stream.size >= this.size
+    return Promise.resolve({ value: stream, done })
+  }
+
+  close() {
+    this._stream.destroy()
+  }
+}

frontend/node_modules/tus-js-client/lib/node/sources/StreamSource.js

@@ -0,0 +1,123 @@
+/**
+ * readChunk reads a chunk with the given size from the given
+ * stream. It will wait until enough data is available to satisfy
+ * the size requirement before resolving.
+ * Only if the stream ends, the function may resolve with a buffer
+ * smaller than the size argument.
+ * Note that we rely on the stream behaving as Node.js documents:
+ * https://nodejs.org/api/stream.html#readablereadsize
+ */
+async function readChunk(stream, size) {
+  return new Promise((resolve, reject) => {
+    const onError = (err) => {
+      stream.off('readable', onReadable)
+      reject(err)
+    }
+
+    const onReadable = () => {
+      // TODO: Node requires size to be less than 1GB. Add a validation for that
+      const chunk = stream.read(size)
+
+      if (chunk !== null) {
+        stream.off('error', onError)
+        stream.off('readable', onReadable)
+
+        resolve(chunk)
+      }
+    }
+
+    stream.once('error', onError)
+    stream.on('readable', onReadable)
+  })
+}
+
+/**
+ * StreamSource provides an interface to obtain slices of a Readable stream for
+ * various ranges.
+ * It will buffer read data, to allow for following pattern:
+ * - Call slice(startA, endA) will buffer the data of the requested range
+ * - Call slice(startB, endB) will return data from the buffer if startA <= startB <= endA.
+ *   If endB > endA, it will also consume new data from the stream.
+ * Note that it is forbidden to call with startB < startA or startB > endA. In other words,
+ * the slice calls cannot seek back and must not skip data from the stream.
+ */
+export default class StreamSource {
+  constructor(stream) {
+    this._stream = stream
+
+    // Setting the size to null indicates that we have no calculation available
+    // for how much data this stream will emit requiring the user to specify
+    // it manually (see the `uploadSize` option).
+    this.size = null
+
+    this._buf = Buffer.alloc(0)
+    this._bufPos = 0
+
+    this._ended = false
+    this._error = null
+
+    stream.pause()
+    stream.on('end', () => {
+      this._ended = true
+    })
+    stream.on('error', (err) => {
+      this._error = err
+    })
+  }
+
+  async slice(start, end) {
+    // Fail fast if the caller requests a proportion of the data which is not
+    // available any more.
+    if (start < this._bufPos) {
+      throw new Error('cannot slice from position which we already seeked away')
+    }
+
+    if (start > this._bufPos + this._buf.length) {
+      throw new Error('slice start is outside of buffer (currently not implemented)')
+    }
+
+    if (this._error) {
+      throw this._error
+    }
+
+    let returnBuffer
+    // Always attempt to drain the buffer first, even if this means that we
+    // return less data than the caller requested.
+    if (start < this._bufPos + this._buf.length) {
+      const bufStart = start - this._bufPos
+      const bufEnd = Math.min(this._buf.length, end - this._bufPos)
+
+      returnBuffer = this._buf.slice(bufStart, bufEnd)
+    } else {
+      returnBuffer = Buffer.alloc(0)
+    }
+
+    // If the stream has ended already, read calls would not finish, so return early here.
+    if (this._ended) {
+      returnBuffer.size = returnBuffer.length
+      return { value: returnBuffer, done: true }
+    }
+
+    // If we could not satisfy the slice request from the buffer only, read more data from
+    // the stream and add it to the buffer.
+    const requestedSize = end - start
+    if (requestedSize > returnBuffer.length) {
+      // Note: We assume that the stream returns not more than the requested size.
+      const newChunk = await readChunk(this._stream, requestedSize - returnBuffer.length)
+
+      // Append the new chunk to the buffer
+      returnBuffer = Buffer.concat([returnBuffer, newChunk])
+    }
+
+    // Important: Store the read data, so consecutive slice calls can access the same data.
+    this._buf = returnBuffer
+    this._bufPos = start
+
+    returnBuffer.size = returnBuffer.length
+    return { value: returnBuffer, done: this._ended }
+  }
+
+  close() {
+    this._stream.destroy()
+  }
+}

frontend/node_modules/tus-js-client/lib/node/urlStorage.js

@@ -0,0 +1,156 @@
+import { readFile, writeFile } from 'fs'
+import combineErrors from 'combine-errors'
+import * as lockfile from 'proper-lockfile'
+
+export const canStoreURLs = true
+
+export class FileUrlStorage {
+  constructor(filePath) {
+    this.path = filePath
+  }
+
+  findAllUploads() {
+    return new Promise((resolve, reject) => {
+      this._getItems('tus::', (err, results) => {
+        if (err) reject(err)
+        else resolve(results)
+      })
+    })
+  }
+
+  findUploadsByFingerprint(fingerprint) {
+    return new Promise((resolve, reject) => {
+      this._getItems(`tus::${fingerprint}`, (err, results) => {
+        if (err) reject(err)
+        else resolve(results)
+      })
+    })
+  }
+
+  removeUpload(urlStorageKey) {
+    return new Promise((resolve, reject) => {
+      this._removeItem(urlStorageKey, (err) => {
+        if (err) reject(err)
+        else resolve()
+      })
+    })
+  }
+
+  addUpload(fingerprint, upload) {
+    const id = Math.round(Math.random() * 1e12)
+    const key = `tus::${fingerprint}::${id}`
+
+    return new Promise((resolve, reject) => {
+      this._setItem(key, upload, (err) => {
+        if (err) reject(err)
+        else resolve(key)
+      })
+    })
+  }
+
+  _setItem(key, value, cb) {
+    lockfile
+      .lock(this.path, this._lockfileOptions())
+      .then((release) => {
+        cb = this._releaseAndCb(release, cb)
+        this._getData((err, data) => {
+          if (err) {
+            cb(err)
+            return
+          }
+
+          data[key] = value
+          this._writeData(data, (err2) => cb(err2))
+        })
+      })
+      .catch(cb)
+  }
+
+  _getItems(prefix, cb) {
+    this._getData((err, data) => {
+      if (err) {
+        cb(err)
+        return
+      }
+
+      const results = Object.keys(data)
+        .filter((key) => key.startsWith(prefix))
+        .map((key) => {
+          const obj = data[key]
+          obj.urlStorageKey = key
+          return obj
+        })
+
+      cb(null, results)
+    })
+  }
+
+  _removeItem(key, cb) {
+    lockfile
+      .lock(this.path, this._lockfileOptions())
+      .then((release) => {
+        cb = this._releaseAndCb(release, cb)
+        this._getData((err, data) => {
+          if (err) {
+            cb(err)
+            return
+          }
+
+          delete data[key]
+          this._writeData(data, (err2) => cb(err2))
+        })
+      })
+      .catch(cb)
+  }
+
+  _lockfileOptions() {
+    return {
+      realpath: false,
+      retries: {
+        retries: 5,
+        minTimeout: 20,
+      },
+    }
+  }
+
+  _releaseAndCb(release, cb) {
+    return (err) => {
+      if (err) {
+        release()
+          .then(() => cb(err))
+          .catch((releaseErr) => cb(combineErrors([err, releaseErr])))
+        return
+      }
+
+      release().then(cb).catch(cb)
+    }
+  }
+
+  _writeData(data, cb) {
+    const opts = {
+      encoding: 'utf8',
+      mode: 0o660,
+      flag: 'w',
+    }
+    writeFile(this.path, JSON.stringify(data), opts, (err) => cb(err))
+  }
+
+  _getData(cb) {
+    readFile(this.path, 'utf8', (err, data) => {
+      if (err) {
+        // return empty data if file does not exist
+        if (err.code === 'ENOENT') cb(null, {})
+        else cb(err)
+        return
+      }
+
+      try {
+        data = !data.trim().length ? {} : JSON.parse(data)
+      } catch (error) {
+        cb(error)
+        return
+      }
+      cb(null, data)
+    })
+  }
+}

frontend/node_modules/tus-js-client/lib/noopUrlStorage.js

@@ -0,0 +1,17 @@
+export default class NoopUrlStorage {
+  listAllUploads() {
+    return Promise.resolve([])
+  }
+
+  findUploadsByFingerprint(_fingerprint) {
+    return Promise.resolve([])
+  }
+
+  removeUpload(_urlStorageKey) {
+    return Promise.resolve()
+  }
+
+  addUpload(_fingerprint, _upload) {
+    return Promise.resolve(null)
+  }
+}

frontend/node_modules/tus-js-client/lib/uuid.js

@@ -0,0 +1,19 @@
+/**
+ * Generate a UUID v4 based on random numbers. We intentioanlly use the less
+ * secure Math.random function here since the more secure crypto.getRandomNumbers
+ * is not available on all platforms.
+ * This is not a problem for us since we use the UUID only for generating a
+ * request ID, so we can correlate server logs to client errors.
+ *
+ * This function is taken from following site:
+ * https://stackoverflow.com/questions/105034/create-guid-uuid-in-javascript
+ *
+ * @return {string} The generate UUID
+ */
+export default function uuid() {
+  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
+    const r = (Math.random() * 16) | 0
+    const v = c === 'x' ? r : (r & 0x3) | 0x8
+    return v.toString(16)
+  })
+}

frontend/node_modules/tus-js-client/package.json

@@ -0,0 +1,85 @@
+{
+  "name": "tus-js-client",
+  "version": "4.3.1",
+  "description": "A pure JavaScript client for the tus resumable upload protocol",
+  "main": "lib.es5/node/index.js",
+  "module": "lib.esm/node/index.js",
+  "files": ["lib/**/*", "lib.es5/**/*", "lib.esm/**/*", "dist/**/*", "lib/index.d.ts"],
+  "browser": {
+    "./lib.es5/node/index.js": "./lib.es5/browser/index.js",
+    "./lib.esm/node/index.js": "./lib.esm/browser/index.js",
+    "./lib/node/index.js": "./lib/browser/index.js"
+  },
+  "types": "./lib/index.d.ts",
+  "engines": {
+    "node": ">=18"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/tus/tus-js-client.git"
+  },
+  "keywords": ["tus", "resumable", "upload", "protocol", "progress", "file", "browser"],
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/tus/tus-js-client/issues"
+  },
+  "homepage": "https://github.com/tus/tus-js-client",
+  "devDependencies": {
+    "@babel/cli": "^7.0.0",
+    "@babel/core": "^7.13.10",
+    "@babel/helper-get-function-arity": "^7.16.7",
+    "@babel/plugin-syntax-jsx": "^7.12.13",
+    "@babel/plugin-transform-modules-commonjs": "^7.9.6",
+    "@babel/preset-env": "^7.0.0",
+    "@biomejs/biome": "^1.7.3",
+    "axios": "^0.28.0",
+    "babelify": "^10.0.0",
+    "browserify": "^17.0.0",
+    "chokidar-cli": "^3.0.0",
+    "exorcist": "^2.0.0",
+    "into-stream": "^6.0.0",
+    "jasmine": "^5.1.0",
+    "jasmine-ajax": "^4.0.0",
+    "jasmine-core": "^5.1.1",
+    "karma": "^6.4.0",
+    "karma-browserstack-launcher": "^1.6.0",
+    "karma-chrome-launcher": "^3.1.1",
+    "karma-jasmine": "^5.1.0",
+    "npm-run-all": "^4.1.5",
+    "puppeteer": "^22.3.0",
+    "regenerator-runtime": "^0.14.0",
+    "temp": "^0.9.4",
+    "throttle": "^1.0.3",
+    "tsd": "0.31.0",
+    "uglify-js": "^3.9.2"
+  },
+  "dependencies": {
+    "buffer-from": "^1.1.2",
+    "combine-errors": "^3.0.3",
+    "is-stream": "^2.0.0",
+    "js-base64": "^3.7.2",
+    "lodash.throttle": "^4.1.1",
+    "proper-lockfile": "^4.1.2",
+    "url-parse": "^1.5.7"
+  },
+  "scripts": {
+    "clean": "rm -rf dist lib.es5 lib.esm",
+    "build-test-bundle": "mkdir -p dist && browserify test/spec/browser-index.js -t [ babelify --plugins [ @babel/transform-modules-commonjs ] ] -d -o dist/browser-test-bundle.js",
+    "build-bundle": "mkdir -p dist && browserify lib/browser/index.js -t [ babelify --plugins [ @babel/transform-modules-commonjs ] ] -s tus -d | exorcist ./dist/tus.js.map > dist/tus.js",
+    "build-minify": "uglifyjs ./dist/tus.js -o ./dist/tus.min.js --compress --mangle --source-map \"content='./dist/tus.js.map',url='tus.min.js.map'\"",
+    "build-transpile-esm": "babel -d lib.esm/ lib/",
+    "build-transpile-cjs": "babel --no-babelrc --plugins @babel/transform-modules-commonjs -d lib.es5/ lib.esm/",
+    "build-transpile": "npm-run-all build-transpile-esm build-transpile-cjs",
+    "build": "npm-run-all clean build-bundle build-minify build-transpile build-test-bundle",
+    "watch-bundle": "chokidar --initial \"lib/**/*\" -c \"npm run build-bundle\"",
+    "watch-test-bundle": "chokidar --initial \"test/spec/**/*\" -c \"npm run build-test-bundle\"",
+    "watch-transpile": "chokidar --initial \"lib/**/*\" -c \"npm run build-transpile\"",
+    "watch": "npm-run-all --parallel watch-*",
+    "test-puppeteer": "karma start test/karma/puppeteer.conf.js",
+    "test-browserstack": "karma start test/karma/browserstack.conf.js",
+    "test-node": "jasmine test/spec/node-index.js",
+    "test-types": "tsd",
+    "lint": "biome check .",
+    "fix": "biome check --apply ."
+  }
+}