pdfjs-dist/lib/web/chromecom.js

/**
 * @licstart The following is the entire license notice for the
 * Javascript code in this page
 *
 * Copyright 2019 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @licend The above is the entire license notice for the
 * Javascript code in this page
 */
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ChromeCom = void 0;

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

var _app = require("./app");

var _app_options = require("./app_options");

var _preferences = require("./preferences");

var _download_manager = require("./download_manager");

var _genericl10n = require("./genericl10n");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

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 _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, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } 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 _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : 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 } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

{
  throw new Error('Module "pdfjs-web/chromecom" shall not be used outside ' + 'CHROME build.');
}
var ChromeCom = {
  request: function request(action, data, callback) {
    var message = {
      action: action,
      data: data
    };

    if (!chrome.runtime) {
      console.error('chrome.runtime is undefined.');

      if (callback) {
        callback();
      }
    } else if (callback) {
      chrome.runtime.sendMessage(message, callback);
    } else {
      chrome.runtime.sendMessage(message);
    }
  },
  resolvePDFFile: function resolvePDFFile(file, overlayManager, callback) {
    file = file.replace(/^drive:/i, 'filesystem:' + location.origin + '/external/');

    if (/^https?:/.test(file)) {
      setReferer(file, function () {
        callback(file);
      });
      return;
    }

    if (/^file?:/.test(file)) {
      getEmbedderOrigin(function (origin) {
        if (origin && !/^file:|^chrome-extension:/.test(origin)) {
          _app.PDFViewerApplication.error('Blocked ' + origin + ' from loading ' + file + '. Refused to load a local file in a non-local page ' + 'for security reasons.');

          return;
        }

        isAllowedFileSchemeAccess(function (isAllowedAccess) {
          if (isAllowedAccess) {
            callback(file);
          } else {
            requestAccessToLocalFile(file, overlayManager, callback);
          }
        });
      });
      return;
    }

    callback(file);
  }
};
exports.ChromeCom = ChromeCom;

function getEmbedderOrigin(callback) {
  var origin = window === top ? location.origin : location.ancestorOrigins[0];

  if (origin === 'null') {
    getParentOrigin(callback);
  } else {
    callback(origin);
  }
}

function getParentOrigin(callback) {
  ChromeCom.request('getParentOrigin', null, callback);
}

function isAllowedFileSchemeAccess(callback) {
  ChromeCom.request('isAllowedFileSchemeAccess', null, callback);
}

function isRuntimeAvailable() {
  try {
    if (chrome.runtime && chrome.runtime.getManifest()) {
      return true;
    }
  } catch (e) {}

  return false;
}

function reloadIfRuntimeIsUnavailable() {
  if (!isRuntimeAvailable()) {
    location.reload();
  }
}

var chromeFileAccessOverlayPromise;

function requestAccessToLocalFile(fileUrl, overlayManager, callback) {
  var onCloseOverlay = null;

  if (top !== window) {
    window.addEventListener('focus', reloadIfRuntimeIsUnavailable);

    onCloseOverlay = function onCloseOverlay() {
      window.removeEventListener('focus', reloadIfRuntimeIsUnavailable);
      reloadIfRuntimeIsUnavailable();
      overlayManager.close('chromeFileAccessOverlay');
    };
  }

  if (!chromeFileAccessOverlayPromise) {
    chromeFileAccessOverlayPromise = overlayManager.register('chromeFileAccessOverlay', document.getElementById('chromeFileAccessOverlay'), onCloseOverlay, true);
  }

  chromeFileAccessOverlayPromise.then(function () {
    var iconPath = chrome.runtime.getManifest().icons[48];
    document.getElementById('chrome-pdfjs-logo-bg').style.backgroundImage = 'url(' + chrome.runtime.getURL(iconPath) + ')';
    var i18nFileAccessLabel = {
      "am": "\u1208\u134B\u12ED\u120D \u12E9\u12A0\u122D\u12A4\u120D\u12CE\u127D \u1218\u12F3\u1228\u123B \u134D\u1240\u12F5",
      "ar": "\u200F\u0627\u0644\u0633\u0645\u0627\u062D \u0628\u0627\u0644\u062F\u062E\u0648\u0644 \u0625\u0644\u0649 \u0639\u0646\u0627\u0648\u064A\u0646 URL \u0644\u0644\u0645\u0644\u0641\u0627\u062A",
      "bg": "\u0414\u0430 \u0441\u0435 \u0440\u0430\u0437\u0440\u0435\u0448\u0438 \u0434\u043E\u0441\u0442\u044A\u043F \u0434\u043E URL \u0430\u0434\u0440\u0435\u0441\u0438\u0442\u0435 \u043D\u0430 \u0444\u0430\u0439\u043B\u043E\u0432\u0435\u0442\u0435",
      "bn": "\u09AB\u09BE\u0987\u09B2 URL\u0997\u09C1\u09B2\u09BF\u09A4\u09C7 \u0985\u09CD\u09AF\u09BE\u0995\u09CD\u09B8\u09C7\u09B8 \u09AE\u099E\u09CD\u099C\u09C1\u09B0 \u0995\u09B0\u09C1\u09A8",
      "ca": "Permet l'acc\xE9s als URL de fitxer",
      "cs": "Umo\u017Enit p\u0159\xEDstup k adres\xE1m URL soubor\u016F",
      "da": "Tillad adgang til webadresser p\xE5 filer",
      "de": "Zugriff auf Datei-URLs zulassen",
      "el": "\u039D\u03B1 \u03B5\u03C0\u03B9\u03C4\u03C1\u03AD\u03C0\u03B5\u03C4\u03B1\u03B9 \u03B7 \u03C0\u03C1\u03CC\u03C3\u03B2\u03B1\u03C3\u03B7 \u03C3\u03B5 \u03B4\u03B9\u03B5\u03C5\u03B8\u03CD\u03BD\u03C3\u03B5\u03B9\u03C2 URL \u03B1\u03C1\u03C7\u03B5\u03AF\u03C9\u03BD",
      "en-GB": "Allow access to file URLs",
      "es": "Permitir acceso a URL de archivo",
      "es-419": "Permitir el acceso a las URL del archivo",
      "et": "Luba juurdep\xE4\xE4s failide URL-idele",
      "fa": "\u200F\u0627\u062C\u0627\u0632\u0647\u0654 \u062F\u0633\u062A\u0631\u0633\u06CC \u0628\u0647 URL \u0647\u0627\u06CC \u0641\u0627\u06CC\u0644",
      "fi": "Salli tiedostojen URL-osoitteiden k\xE4ytt\xF6",
      "fil": "Payagan ang access na mag-file ng mga URL",
      "fr": "Autoriser l'acc\xE8s aux URL de fichier",
      "gu": "URL \u0AAB\u0ABE\u0A87\u0AB2 \u0A95\u0AB0\u0AB5\u0ABE \u0A8D\u0A95\u0ACD\u0AB8\u0AC7\u0AB8\u0AA8\u0AC0 \u0AAE\u0A82\u0A9C\u0AC2\u0AB0\u0AC0 \u0A86\u0AAA\u0ACB",
      "hi": "\u092B\u093C\u093E\u0907\u0932 URL \u0924\u0915 \u092A\u0939\u0941\u0902\u091A\u0928\u0947 \u0915\u0940 \u0905\u0928\u0941\u092E\u0924\u093F \u0926\u0947\u0902",
      "hr": "Dozvoli pristup URL-ovima datoteke",
      "hu": "F\xE1jl URL-ekhez val\xF3 hozz\xE1f\xE9r\xE9s enged\xE9lyez\xE9se",
      "id": "Izinkan akses ke URL file",
      "it": "Consenti l'accesso agli URL dei file",
      "iw": "\u05D0\u05E4\u05E9\u05E8 \u05D2\u05D9\u05E9\u05D4 \u05DC\u05DB\u05EA\u05D5\u05D1\u05D5\u05EA \u05D0\u05EA\u05E8\u05D9\u05DD \u05E9\u05DC \u05E7\u05D1\u05E6\u05D9\u05DD",
      "ja": "\u30D5\u30A1\u30A4\u30EB\u306E URL \u3078\u306E\u30A2\u30AF\u30BB\u30B9\u3092\u8A31\u53EF\u3059\u308B",
      "kn": "URL \u0C97\u0CB3\u0CA8\u0CCD\u0CA8\u0CC1 \u0CAB\u0CC8\u0CB2\u0CCD\u200C\u0C97\u0CB3\u0CBF\u0C97\u0CC6 \u0CAA\u0CCD\u0CB0\u0CB5\u0CC7\u0CB6\u0CBF\u0CB8\u0CB2\u0CC1 \u0C85\u0CA8\u0CC1\u0CAE\u0CA4\u0CBF\u0CB8\u0CBF",
      "ko": "\uD30C\uC77C URL\uC5D0 \uB300\uD55C \uC561\uC138\uC2A4 \uD5C8\uC6A9",
      "lt": "Leisti pasiekti failo URL",
      "lv": "At\u013Caut piek\u013Cuvi faila vietr\u0101\u017Eiem URL",
      "ml": "URL \u0D15\u0D33\u0D4D\u200D\u200C \u0D2B\u0D2F\u0D32\u0D4D\u200D\u200C \u0D1A\u0D46\u0D2F\u0D4D\u0D2F\u0D41\u0D28\u0D4D\u0D28\u0D24\u0D3F\u0D28\u0D4D \u0D06\u0D15\u0D4D\u200D\u0D38\u0D38\u0D4D\u0D38\u0D4D \u0D05\u0D28\u0D41\u0D35\u0D26\u0D3F\u0D15\u0D4D\u0D15\u0D41\u0D15",
      "mr": "\u092B\u093E\u0907\u0932 URL \u092E\u0927\u094D\u092F\u0947 \u092A\u094D\u0930\u0935\u0947\u0936\u093E\u0938 \u0905\u0928\u0941\u092E\u0924\u0940 \u0926\u094D\u092F\u093E",
      "ms": "Membenarkan akses ke URL fail",
      "nl": "Toegang tot bestand-URL's toestaan",
      "no": "Tillat tilgang til filnettadresser",
      "pl": "Zezwalaj na dost\u0119p do adres\xF3w URL plik\xF3w",
      "pt-BR": "Permitir acesso aos URLs do arquivo",
      "pt-PT": "Permitir acesso a URLs de ficheiro",
      "ro": "Permite accesul la adresele URL de fi\u0219iere",
      "ru": "\u0420\u0430\u0437\u0440\u0435\u0448\u0438\u0442\u044C \u043E\u0442\u043A\u0440\u044B\u0432\u0430\u0442\u044C \u0444\u0430\u0439\u043B\u044B \u043F\u043E \u0441\u0441\u044B\u043B\u043A\u0430\u043C",
      "sk": "Povoli\u0165 pr\xEDstup k webov\xFDm adres\xE1m s\xFAboru",
      "sl": "Dovoli dostop do URL-jev datoteke",
      "sr": "\u0414\u043E\u0437\u0432\u043E\u043B\u0438 \u043F\u0440\u0438\u0441\u0442\u0443\u043F URL \u0430\u0434\u0440\u0435\u0441\u0430\u043C\u0430 \u0434\u0430\u0442\u043E\u0442\u0435\u043A\u0430",
      "sv": "Till\xE5t \xE5tkomst till webbadresser i filen",
      "sw": "Ruhusu kufikia URL za faili",
      "ta": "\u0B95\u0BCB\u0BAA\u0BCD\u0BAA\u0BC1  URL\u0B95\u0BB3\u0BC1\u0B95\u0BCD\u0B95\u0BC1 \u0B85\u0BA3\u0BC1\u0B95\u0BB2\u0BC8 \u0B85\u0BA9\u0BC1\u0BAE\u0BA4\u0BBF",
      "te": "\u0C2B\u0C48\u0C32\u0C4D URL\u0C32\u0C15\u0C41 \u0C2A\u0C4D\u0C30\u0C3E\u0C2A\u0C4D\u0C24\u0C3F\u0C28\u0C3F \u0C05\u0C28\u0C41\u0C2E\u0C24\u0C3F\u0C02\u0C1A\u0C41",
      "th": "\u0E2D\u0E19\u0E38\u0E0D\u0E32\u0E15\u0E43\u0E2B\u0E49\u0E40\u0E02\u0E49\u0E32\u0E16\u0E36\u0E07\u0E44\u0E1F\u0E25\u0E4C URL",
      "tr": "Dosya URL'lerine eri\u015Fime izin ver",
      "uk": "\u041D\u0430\u0434\u0430\u0432\u0430\u0442\u0438 \u0434\u043E\u0441\u0442\u0443\u043F \u0434\u043E URL-\u0430\u0434\u0440\u0435\u0441 \u0444\u0430\u0439\u043B\u0443",
      "vi": "Cho ph\xE9p truy c\u1EADp v\xE0o c\xE1c URL c\u1EE7a t\u1EC7p",
      "zh-CN": "\u5141\u8BB8\u8BBF\u95EE\u6587\u4EF6\u7F51\u5740",
      "zh-TW": "\u5141\u8A31\u5B58\u53D6\u6A94\u6848\u7DB2\u5740"
    }[chrome.i18n.getUILanguage && chrome.i18n.getUILanguage()];

    if (i18nFileAccessLabel) {
      document.getElementById('chrome-file-access-label').textContent = i18nFileAccessLabel;
    }

    var link = document.getElementById('chrome-link-to-extensions-page');
    link.href = 'chrome://extensions/?id=' + chrome.runtime.id;

    link.onclick = function (e) {
      e.preventDefault();
      ChromeCom.request('openExtensionsPageForFileAccess', {
        newTab: e.ctrlKey || e.metaKey || e.button === 1 || window !== top
      });
    };

    document.getElementById('chrome-url-of-local-file').textContent = fileUrl;

    document.getElementById('chrome-file-fallback').onchange = function () {
      var file = this.files[0];

      if (file) {
        var originalFilename = decodeURIComponent(fileUrl.split('/').pop());
        var originalUrl = fileUrl;

        if (originalFilename !== file.name) {
          var msg = 'The selected file does not match the original file.' + '\nOriginal: ' + originalFilename + '\nSelected: ' + file.name + '\nDo you want to open the selected file?';

          if (!confirm(msg)) {
            this.value = '';
            return;
          }

          originalUrl = 'file:///fakepath/to/' + encodeURIComponent(file.name);
        }

        callback(URL.createObjectURL(file), file.size, originalUrl);
        overlayManager.close('chromeFileAccessOverlay');
      }
    };

    overlayManager.open('chromeFileAccessOverlay');
  });
}

if (window === top) {
  addEventListener('unload', function () {
    if (!isRuntimeAvailable()) {
      localStorage.setItem('unload-' + Date.now() + '-' + document.hidden + '-' + location.href, JSON.stringify(history.state));
    }
  });
}

var port;

function setReferer(url, callback) {
  if (!port) {
    port = chrome.runtime.connect({
      name: 'chromecom-referrer'
    });
  }

  port.onDisconnect.addListener(onDisconnect);
  port.onMessage.addListener(onMessage);
  port.postMessage({
    referer: window.history.state && window.history.state.chromecomState,
    requestUrl: url
  });

  function onMessage(referer) {
    if (referer) {
      var state = window.history.state || {};
      state.chromecomState = referer;
      window.history.replaceState(state, '');
    }

    onCompleted();
  }

  function onDisconnect() {
    port = null;
    callback();
  }

  function onCompleted() {
    port.onDisconnect.removeListener(onDisconnect);
    port.onMessage.removeListener(onMessage);
    callback();
  }
}

var storageArea = chrome.storage.sync || chrome.storage.local;

var ChromePreferences =
/*#__PURE__*/
function (_BasePreferences) {
  _inherits(ChromePreferences, _BasePreferences);

  function ChromePreferences() {
    _classCallCheck(this, ChromePreferences);

    return _possibleConstructorReturn(this, _getPrototypeOf(ChromePreferences).apply(this, arguments));
  }

  _createClass(ChromePreferences, [{
    key: "_writeToStorage",
    value: function () {
      var _writeToStorage2 = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee(prefObj) {
        var _this = this;

        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                return _context.abrupt("return", new Promise(function (resolve) {
                  if (prefObj === _this.defaults) {
                    var keysToRemove = Object.keys(_this.defaults);
                    storageArea.remove(keysToRemove, function () {
                      resolve();
                    });
                  } else {
                    storageArea.set(prefObj, function () {
                      resolve();
                    });
                  }
                }));

              case 1:
              case "end":
                return _context.stop();
            }
          }
        }, _callee);
      }));

      function _writeToStorage(_x) {
        return _writeToStorage2.apply(this, arguments);
      }

      return _writeToStorage;
    }()
  }, {
    key: "_readFromStorage",
    value: function () {
      var _readFromStorage2 = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee2(prefObj) {
        var _this2 = this;

        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                return _context2.abrupt("return", new Promise(function (resolve) {
                  var getPreferences = function getPreferences(defaultPrefs) {
                    if (chrome.runtime.lastError) {
                      defaultPrefs = _this2.defaults;
                    }

                    storageArea.get(defaultPrefs, function (readPrefs) {
                      resolve(readPrefs);
                    });
                  };

                  if (chrome.storage.managed) {
                    var defaultManagedPrefs = Object.assign({
                      enableHandToolOnLoad: false,
                      disableTextLayer: false,
                      enhanceTextSelection: false,
                      showPreviousViewOnLoad: true,
                      disablePageMode: false
                    }, _this2.defaults);
                    chrome.storage.managed.get(defaultManagedPrefs, function (items) {
                      items = items || defaultManagedPrefs;

                      if (items.enableHandToolOnLoad && !items.cursorToolOnLoad) {
                        items.cursorToolOnLoad = 1;
                      }

                      delete items.enableHandToolOnLoad;

                      if (items.textLayerMode !== 1) {
                        if (items.disableTextLayer) {
                          items.textLayerMode = 0;
                        } else if (items.enhanceTextSelection) {
                          items.textLayerMode = 2;
                        }
                      }

                      delete items.disableTextLayer;
                      delete items.enhanceTextSelection;

                      if (!items.showPreviousViewOnLoad && !items.viewOnLoad) {
                        items.viewOnLoad = 1;
                      }

                      delete items.showPreviousViewOnLoad;
                      delete items.disablePageMode;
                      getPreferences(items);
                    });
                  } else {
                    getPreferences(_this2.defaults);
                  }
                }));

              case 1:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2);
      }));

      function _readFromStorage(_x2) {
        return _readFromStorage2.apply(this, arguments);
      }

      return _readFromStorage;
    }()
  }]);

  return ChromePreferences;
}(_preferences.BasePreferences);

var ChromeExternalServices = Object.create(_app.DefaultExternalServices);

ChromeExternalServices.initPassiveLoading = function (callbacks) {
  var overlayManager = _app.PDFViewerApplication.overlayManager;
  ChromeCom.resolvePDFFile(_app_options.AppOptions.get('defaultUrl'), overlayManager, function (url, length, originalUrl) {
    callbacks.onOpenWithURL(url, length, originalUrl);
  });
};

ChromeExternalServices.createDownloadManager = function (options) {
  return new _download_manager.DownloadManager(options);
};

ChromeExternalServices.createPreferences = function () {
  return new ChromePreferences();
};

ChromeExternalServices.createL10n = function (options) {
  return new _genericl10n.GenericL10n(navigator.language);
};

_app.PDFViewerApplication.externalServices = ChromeExternalServices;