yomichan/ext/js/pages/settings/backup-controller.js

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/*
* Copyright (C) 2019-2021 Yomichan Authors
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*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/* global
* DictionaryController
* OptionsUtil
* StringUtil
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*/
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class BackupController {
constructor(settingsController, modalController) {
this._settingsController = settingsController;
this._modalController = modalController;
this._settingsExportToken = null;
this._settingsExportRevoke = null;
this._currentVersion = 0;
this._settingsResetModal = null;
this._settingsImportErrorModal = null;
this._settingsImportWarningModal = null;
this._optionsUtil = null;
try {
this._optionsUtil = new OptionsUtil();
} catch (e) {
// NOP
}
}
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async prepare() {
if (this._optionsUtil !== null) {
await this._optionsUtil.prepare();
}
if (this._modalController !== null) {
this._settingsResetModal = this._modalController.getModal('settings-reset');
this._settingsImportErrorModal = this._modalController.getModal('settings-import-error');
this._settingsImportWarningModal = this._modalController.getModal('settings-import-warning');
}
this._addNodeEventListener('#settings-export-button', 'click', this._onSettingsExportClick.bind(this), false);
this._addNodeEventListener('#settings-import-button', 'click', this._onSettingsImportClick.bind(this), false);
this._addNodeEventListener('#settings-import-file', 'change', this._onSettingsImportFileChange.bind(this), false);
this._addNodeEventListener('#settings-reset-button', 'click', this._onSettingsResetClick.bind(this), false);
this._addNodeEventListener('#settings-reset-confirm-button', 'click', this._onSettingsResetConfirmClick.bind(this), false);
}
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// Private
_addNodeEventListener(selector, ...args) {
const node = document.querySelector(selector);
if (node === null) { return; }
node.addEventListener(...args);
}
_getSettingsExportDateString(date, dateSeparator, dateTimeSeparator, timeSeparator, resolution) {
const values = [
date.getUTCFullYear().toString(),
dateSeparator,
(date.getUTCMonth() + 1).toString().padStart(2, '0'),
dateSeparator,
date.getUTCDate().toString().padStart(2, '0'),
dateTimeSeparator,
date.getUTCHours().toString().padStart(2, '0'),
timeSeparator,
date.getUTCMinutes().toString().padStart(2, '0'),
timeSeparator,
date.getUTCSeconds().toString().padStart(2, '0')
];
return values.slice(0, resolution * 2 - 1).join('');
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}
async _getSettingsExportData(date) {
const optionsFull = await this._settingsController.getOptionsFull();
const environment = await yomichan.api.getEnvironmentInfo();
const fieldTemplatesDefault = await yomichan.api.getDefaultAnkiFieldTemplates();
const permissions = await this._settingsController.permissionsUtil.getAllPermissions();
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// Format options
for (const {options} of optionsFull.profiles) {
if (options.anki.fieldTemplates === fieldTemplatesDefault || !options.anki.fieldTemplates) {
options.anki.fieldTemplates = null;
}
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}
const data = {
version: this._currentVersion,
date: this._getSettingsExportDateString(date, '-', ' ', ':', 6),
url: chrome.runtime.getURL('/'),
manifest: chrome.runtime.getManifest(),
environment,
userAgent: navigator.userAgent,
permissions,
options: optionsFull
};
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return data;
}
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_saveBlob(blob, fileName) {
if (typeof navigator === 'object' && typeof navigator.msSaveBlob === 'function') {
if (navigator.msSaveBlob(blob)) {
return;
}
}
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const blobUrl = URL.createObjectURL(blob);
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const a = document.createElement('a');
a.href = blobUrl;
a.download = fileName;
a.rel = 'noopener';
a.target = '_blank';
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const revoke = () => {
URL.revokeObjectURL(blobUrl);
a.href = '';
this._settingsExportRevoke = null;
};
this._settingsExportRevoke = revoke;
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a.dispatchEvent(new MouseEvent('click'));
setTimeout(revoke, 60000);
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}
async _onSettingsExportClick() {
if (this._settingsExportRevoke !== null) {
this._settingsExportRevoke();
this._settingsExportRevoke = null;
}
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const date = new Date(Date.now());
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const token = {};
this._settingsExportToken = token;
const data = await this._getSettingsExportData(date);
if (this._settingsExportToken !== token) {
// A new export has been started
return;
}
this._settingsExportToken = null;
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const fileName = `yomichan-settings-${this._getSettingsExportDateString(date, '-', '-', '-', 6)}.json`;
const blob = new Blob([JSON.stringify(data, null, 4)], {type: 'application/json'});
this._saveBlob(blob, fileName);
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}
_readFileArrayBuffer(file) {
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.onload = () => resolve(reader.result);
reader.onerror = () => reject(reader.error);
reader.readAsArrayBuffer(file);
});
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}
// Importing
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async _settingsImportSetOptionsFull(optionsFull) {
await this._settingsController.setAllSettings(optionsFull);
}
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_showSettingsImportError(error) {
log.error(error);
document.querySelector('#settings-import-error-message').textContent = `${error}`;
this._settingsImportErrorModal.setVisible(true);
}
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async _showSettingsImportWarnings(warnings) {
const modal = this._settingsImportWarningModal;
const buttons = document.querySelectorAll('.settings-import-warning-import-button');
const messageContainer = document.querySelector('#settings-import-warning-message');
if (buttons.length === 0 || messageContainer === null) {
return {result: false};
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}
// Set message
const fragment = document.createDocumentFragment();
for (const warning of warnings) {
const node = document.createElement('li');
node.textContent = `${warning}`;
fragment.appendChild(node);
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}
messageContainer.textContent = '';
messageContainer.appendChild(fragment);
// Show modal
modal.setVisible(true);
// Wait for modal to close
return new Promise((resolve) => {
const onButtonClick = (e) => {
e.preventDefault();
complete({
result: true,
sanitize: e.currentTarget.dataset.importSanitize === 'true'
});
modal.setVisible(false);
};
const onModalVisibilityChanged = ({visible}) => {
if (visible) { return; }
complete({result: false});
};
let completed = false;
const complete = (result) => {
if (completed) { return; }
completed = true;
modal.off('visibilityChanged', onModalVisibilityChanged);
for (const button of buttons) {
button.removeEventListener('click', onButtonClick, false);
}
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resolve(result);
};
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// Hook events
modal.on('visibilityChanged', onModalVisibilityChanged);
for (const button of buttons) {
button.addEventListener('click', onButtonClick, false);
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}
});
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}
_isLocalhostUrl(urlString) {
try {
const url = new URL(urlString);
switch (url.hostname.toLowerCase()) {
case 'localhost':
case '127.0.0.1':
case '[::1]':
switch (url.protocol.toLowerCase()) {
case 'http:':
case 'https:':
return true;
}
break;
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}
} catch (e) {
// NOP
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}
return false;
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}
_settingsImportSanitizeProfileOptions(options, dryRun) {
const warnings = [];
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const anki = options.anki;
if (isObject(anki)) {
const fieldTemplates = anki.fieldTemplates;
if (typeof fieldTemplates === 'string') {
warnings.push('anki.fieldTemplates contains a non-default value');
if (!dryRun) {
anki.fieldTemplates = null;
}
}
const server = anki.server;
if (typeof server === 'string' && server.length > 0 && !this._isLocalhostUrl(server)) {
warnings.push('anki.server uses a non-localhost URL');
if (!dryRun) {
anki.server = 'http://127.0.0.1:8765';
}
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}
}
const audio = options.audio;
if (isObject(audio)) {
const sources = audio.sources;
if (Array.isArray(sources)) {
for (let i = 0, ii = sources.length; i < ii; ++i) {
const source = sources[i];
if (!isObject(source)) { continue; }
const {url} = source;
if (typeof url === 'string' && url.length > 0 && !this._isLocalhostUrl(url)) {
warnings.push(`audio.sources[${i}].url uses a non-localhost URL`);
if (!dryRun) {
sources[i].url = '';
}
}
}
}
}
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return warnings;
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}
_settingsImportSanitizeOptions(optionsFull, dryRun) {
const warnings = new Set();
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const profiles = optionsFull.profiles;
if (Array.isArray(profiles)) {
for (const profile of profiles) {
if (!isObject(profile)) { continue; }
const options = profile.options;
if (!isObject(options)) { continue; }
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const warnings2 = this._settingsImportSanitizeProfileOptions(options, dryRun);
for (const warning of warnings2) {
warnings.add(warning);
}
}
}
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return warnings;
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}
async _importSettingsFile(file) {
const dataString = StringUtil.arrayBufferUtf8Decode(await this._readFileArrayBuffer(file));
const data = JSON.parse(dataString);
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// Type check
if (!isObject(data)) {
throw new Error(`Invalid data type: ${typeof data}`);
}
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// Version check
const version = data.version;
if (!(
typeof version === 'number' &&
Number.isFinite(version) &&
version === Math.floor(version)
)) {
throw new Error(`Invalid version: ${version}`);
}
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if (!(
version >= 0 &&
version <= this._currentVersion
)) {
throw new Error(`Unsupported version: ${version}`);
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}
// Verify options exists
let optionsFull = data.options;
if (!isObject(optionsFull)) {
throw new Error(`Invalid options type: ${typeof optionsFull}`);
}
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// Upgrade options
optionsFull = await this._optionsUtil.update(optionsFull);
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// Check for warnings
const sanitizationWarnings = this._settingsImportSanitizeOptions(optionsFull, true);
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// Show sanitization warnings
if (sanitizationWarnings.size > 0) {
const {result, sanitize} = await this._showSettingsImportWarnings(sanitizationWarnings);
if (!result) { return; }
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if (sanitize !== false) {
this._settingsImportSanitizeOptions(optionsFull, false);
}
}
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// Update dictionaries
await DictionaryController.ensureDictionarySettings(this._settingsController, void 0, optionsFull, false, false);
// Assign options
await this._settingsImportSetOptionsFull(optionsFull);
}
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_onSettingsImportClick() {
document.querySelector('#settings-import-file').click();
}
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async _onSettingsImportFileChange(e) {
const files = e.target.files;
if (files.length === 0) { return; }
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const file = files[0];
e.target.value = null;
try {
await this._importSettingsFile(file);
} catch (error) {
this._showSettingsImportError(error);
}
}
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// Resetting
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_onSettingsResetClick() {
this._settingsResetModal.setVisible(true);
}
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async _onSettingsResetConfirmClick() {
this._settingsResetModal.setVisible(false);
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// Get default options
const optionsFull = this._optionsUtil.getDefault();
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// Update dictionaries
await DictionaryController.ensureDictionarySettings(this._settingsController, void 0, optionsFull, false, false);
// Assign options
try {
await this._settingsImportSetOptionsFull(optionsFull);
} catch (e) {
log.error(e);
}
}
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}