Implement settings import
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toasted-nutbread
parent
5045a9a3a0
commit
f17b55239e
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@ -129,6 +129,18 @@ class Backend {
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return this.options;
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}
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async setFullOptions(options) {
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if (this.isPreparedPromise !== null) {
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await this.isPreparedPromise;
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}
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try {
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this.options = JsonSchema.getValidValueOrDefault(this.optionsSchema, utilIsolate(options));
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} catch (e) {
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// This shouldn't happen, but catch errors just in case of bugs
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logError(e);
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}
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}
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async getOptions(optionsContext) {
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if (this.isPreparedPromise !== null) {
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await this.isPreparedPromise;
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@ -115,8 +115,234 @@ async function _onSettingsExportClick() {
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}
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// Importing
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async function _settingsImportSetOptionsFull(optionsFull) {
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return utilIsolate(await utilBackend().setFullOptions(
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utilBackgroundIsolate(optionsFull)
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));
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}
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function _showSettingsImportError(error) {
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logError(error);
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document.querySelector('#settings-import-error-modal-message').textContent = `${error}`;
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$('#settings-import-error-modal').modal('show');
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}
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async function _showSettingsImportWarnings(warnings) {
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const modalNode = $('#settings-import-warning-modal');
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const buttons = document.querySelectorAll('.settings-import-warning-modal-import-button');
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const messageContainer = document.querySelector('#settings-import-warning-modal-message');
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if (modalNode.length === 0 || buttons.length === 0 || messageContainer === null) {
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return {result: false};
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}
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// Set message
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const fragment = document.createDocumentFragment();
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for (const warning of warnings) {
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const node = document.createElement('li');
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node.textContent = `${warning}`;
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fragment.appendChild(node);
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}
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messageContainer.textContent = '';
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messageContainer.appendChild(fragment);
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// Show modal
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modalNode.modal('show');
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// Wait for modal to close
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return new Promise((resolve) => {
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const onButtonClick = (e) => {
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e.preventDefault();
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complete({
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result: true,
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sanitize: e.currentTarget.dataset.importSanitize === 'true'
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});
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modalNode.modal('hide');
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};
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const onModalHide = () => {
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complete({result: false});
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};
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let completed = false;
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const complete = (result) => {
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if (completed) { return; }
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completed = true;
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modalNode.off('hide.bs.modal', onModalHide);
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for (const button of buttons) {
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button.removeEventListener('click', onButtonClick, false);
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}
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resolve(result);
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};
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// Hook events
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modalNode.on('hide.bs.modal', onModalHide);
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for (const button of buttons) {
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button.addEventListener('click', onButtonClick, false);
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}
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});
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}
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function _isLocalhostUrl(urlString) {
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try {
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const url = new URL(urlString);
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switch (url.hostname.toLowerCase()) {
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case 'localhost':
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case '127.0.0.1':
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case '[::1]':
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switch (url.protocol.toLowerCase()) {
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case 'http:':
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case 'https:':
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return true;
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}
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break;
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}
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} catch (e) {
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// NOP
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}
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return false;
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}
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function _settingsImportSanitizeProfileOptions(options, dryRun) {
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const warnings = [];
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const anki = options.anki;
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if (isObject(anki)) {
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const fieldTemplates = anki.fieldTemplates;
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if (typeof fieldTemplates === 'string') {
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warnings.push('anki.fieldTemplates contains a non-default value');
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if (!dryRun) {
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delete anki.fieldTemplates;
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}
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}
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const server = anki.server;
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if (typeof server === 'string' && server.length > 0 && !_isLocalhostUrl(server)) {
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warnings.push('anki.server uses a non-localhost URL');
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if (!dryRun) {
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delete anki.server;
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}
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}
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}
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const audio = options.audio;
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if (isObject(audio)) {
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const customSourceUrl = audio.customSourceUrl;
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if (typeof customSourceUrl === 'string' && customSourceUrl.length > 0 && !_isLocalhostUrl(customSourceUrl)) {
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warnings.push('audio.customSourceUrl uses a non-localhost URL');
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if (!dryRun) {
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delete audio.customSourceUrl;
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}
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}
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}
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return warnings;
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}
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function _settingsImportSanitizeOptions(optionsFull, dryRun) {
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const warnings = new Set();
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const profiles = optionsFull.profiles;
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if (Array.isArray(profiles)) {
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for (const profile of profiles) {
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if (!isObject(profile)) { continue; }
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const options = profile.options;
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if (!isObject(options)) { continue; }
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const warnings2 = _settingsImportSanitizeProfileOptions(options, dryRun);
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for (const warning of warnings2) {
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warnings.add(warning);
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}
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}
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}
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return warnings;
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}
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function _utf8Decode(arrayBuffer) {
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try {
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return new TextDecoder('utf-8').decode(arrayBuffer);
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} catch (e) {
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const binaryString = String.fromCharCode.apply(null, new Uint8Array(arrayBuffer));
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return decodeURIComponent(escape(binaryString));
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}
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}
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async function _importSettingsFile(file) {
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const dataString = _utf8Decode(await utilReadFileArrayBuffer(file));
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const data = JSON.parse(dataString);
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// Type check
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if (!isObject(data)) {
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throw new Error(`Invalid data type: ${typeof data}`);
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}
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// Version check
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const version = data.version;
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if (!(
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typeof version === 'number' &&
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Number.isFinite(version) &&
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version === Math.floor(version)
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)) {
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throw new Error(`Invalid version: ${version}`);
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}
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if (!(
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version >= 0 &&
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version <= SETTINGS_EXPORT_CURRENT_VERSION
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)) {
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throw new Error(`Unsupported version: ${version}`);
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}
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// Verify options exists
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let optionsFull = data.options;
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if (!isObject(optionsFull)) {
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throw new Error(`Invalid options type: ${typeof optionsFull}`);
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}
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// Upgrade options
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optionsFull = optionsUpdateVersion(optionsFull, {});
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// Check for warnings
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const sanitizationWarnings = _settingsImportSanitizeOptions(optionsFull, true);
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// Show sanitization warnings
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if (sanitizationWarnings.size > 0) {
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const {result, sanitize} = await _showSettingsImportWarnings(sanitizationWarnings);
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if (!result) { return; }
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if (sanitize !== false) {
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_settingsImportSanitizeOptions(optionsFull, false);
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}
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}
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// Assign options
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await _settingsImportSetOptionsFull(optionsFull);
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// Reload settings page
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window.location.reload();
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}
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function _onSettingsImportClick() {
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document.querySelector('#settings-import-file').click();
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}
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function _onSettingsImportFileChange(e) {
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const files = e.target.files;
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if (files.length === 0) { return; }
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const file = files[0];
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e.target.value = null;
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_importSettingsFile(file).catch(_showSettingsImportError);
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}
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// Setup
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window.addEventListener('DOMContentLoaded', () => {
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document.querySelector('#settings-export').addEventListener('click', _onSettingsExportClick, false);
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document.querySelector('#settings-import').addEventListener('click', _onSettingsImportClick, false);
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document.querySelector('#settings-import-file').addEventListener('change', _onSettingsImportFileChange, false);
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}, false);
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@ -155,3 +155,12 @@ function utilReadFile(file) {
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reader.readAsBinaryString(file);
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});
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}
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function utilReadFileArrayBuffer(file) {
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return new Promise((resolve, reject) => {
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const reader = new FileReader();
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reader.onload = () => resolve(reader.result);
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reader.onerror = () => reject(reader.error);
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reader.readAsArrayBuffer(file);
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});
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}
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@ -866,6 +866,55 @@
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<div>
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<button class="btn btn-default" id="settings-export">Export Settings</button>
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<button class="btn btn-default" id="settings-import">Import Settings</button>
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</div>
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<div hidden><input type="file" id="settings-import-file" accept=".json,application/json"></div>
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<div class="modal fade" tabindex="-1" role="dialog" id="settings-import-error-modal">
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<div class="modal-dialog modal-dialog-centered">
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<div class="modal-content">
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<div class="modal-header">
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<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
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<h4 class="modal-title">Import Error</h4>
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</div>
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<div class="modal-body">
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<p>
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An error occurred while trying to import the settings file:
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</p>
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<p class="text-danger" id="settings-import-error-modal-message"></p>
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<p>
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Additional info can be found in the developer console.
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</p>
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
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</div>
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</div>
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</div>
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</div>
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<div class="modal fade" tabindex="-1" role="dialog" id="settings-import-warning-modal">
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<div class="modal-dialog modal-dialog-centered">
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<div class="modal-content">
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<div class="modal-header">
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<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
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<h4 class="modal-title">Import Security Warning</h4>
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</div>
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<div class="modal-body">
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<p>
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Settings file contains settings which may pose a security risk.
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Only import settings from sources you trust.
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</p>
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<ul class="text-danger" id="settings-import-warning-modal-message"></ul>
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button>
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<button type="button" class="btn btn-danger settings-import-warning-modal-import-button">Import</button>
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<button type="button" class="btn btn-primary settings-import-warning-modal-import-button" data-import-sanitize="true">Sanitize and Import</button>
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</div>
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</div>
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</div>
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</div>
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</div>
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