lib/web/chromecom.js

/**
 * @licstart The following is the entire license notice for the
 * Javascript code in this page
 *
 * Copyright 2020 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 _app = require("./app.js");

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

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

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

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

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

let chromeFileAccessOverlayPromise;

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

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

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

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

  chromeFileAccessOverlayPromise.then(function () {
    const iconPath = chrome.runtime.getManifest().icons[48];
    document.getElementById("chrome-pdfjs-logo-bg").style.backgroundImage = "url(" + chrome.runtime.getURL(iconPath) + ")";
    const 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\u00e9s als URL de fitxer",
      "cs": "Umo\u017enit p\u0159\u00edstup k adres\u00e1m URL soubor\u016f",
      "da": "Tillad adgang til webadresser p\u00e5 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\u00e4\u00e4s 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\u00e4ytt\u00f6",
      "fil": "Payagan ang access na mag-file ng mga URL",
      "fr": "Autoriser l'acc\u00e8s 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\u00e1jl URL-ekhez val\u00f3 hozz\u00e1f\u00e9r\u00e9s enged\u00e9lyez\u00e9se",
      "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\u00f3w URL plik\u00f3w",
      "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\u00edstup k webov\u00fdm adres\u00e1m s\u00faboru",
      "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\u00e5t \u00e5tkomst 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\u00e9p truy c\u1eadp v\u00e0o c\u00e1c 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;
    }

    const 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 () {
      const file = this.files[0];

      if (file) {
        const originalFilename = decodeURIComponent(fileUrl.split("/").pop());
        let originalUrl = fileUrl;

        if (originalFilename !== file.name) {
          const 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));
    }
  });
}

let 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) {
      const 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();
  }
}

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

class ChromePreferences extends _preferences.BasePreferences {
  async _writeToStorage(prefObj) {
    return new Promise(resolve => {
      if (prefObj === this.defaults) {
        const keysToRemove = Object.keys(this.defaults);
        storageArea.remove(keysToRemove, function () {
          resolve();
        });
      } else {
        storageArea.set(prefObj, function () {
          resolve();
        });
      }
    });
  }

  async _readFromStorage(prefObj) {
    return new Promise(resolve => {
      const getPreferences = defaultPrefs => {
        if (chrome.runtime.lastError) {
          defaultPrefs = this.defaults;
        }

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

      if (chrome.storage.managed) {
        const defaultManagedPrefs = Object.assign({
          enableHandToolOnLoad: false,
          disableTextLayer: false,
          enhanceTextSelection: false,
          showPreviousViewOnLoad: true,
          disablePageMode: false
        }, this.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(this.defaults);
      }
    });
  }

}

class ChromeExternalServices extends _app.DefaultExternalServices {
  static initPassiveLoading(callbacks) {
    ChromeCom.resolvePDFFile(_app_options.AppOptions.get("defaultUrl"), _app.PDFViewerApplication.overlayManager, function (url, length, originalUrl) {
      callbacks.onOpenWithURL(url, length, originalUrl);
    });
  }

  static createDownloadManager(options) {
    return new _download_manager.DownloadManager(options);
  }

  static createPreferences() {
    return new ChromePreferences();
  }

  static createL10n(options) {
    return new _genericl10n.GenericL10n(navigator.language);
  }

}

_app.PDFViewerApplication.externalServices = ChromeExternalServices;