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+/*
+ * Copyright (C) 2021 Yomichan Authors
+ *
+ * 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
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+class PermissionsUtil {
+ constructor() {
+ this._ankiFieldMarkersRequiringClipboardPermission = new Set([
+ 'clipboard-image',
+ 'clipboard-text'
+ ]);
+ this._ankiMarkerPattern = /\{([\w-]+)\}/g;
+ }
+
+ hasPermissions(permissions) {
+ return new Promise((resolve, reject) => chrome.permissions.contains(permissions, (result) => {
+ const e = chrome.runtime.lastError;
+ if (e) {
+ reject(new Error(e.message));
+ } else {
+ resolve(result);
+ }
+ }));
+ }
+
+ setPermissionsGranted(permissions, shouldHave) {
+ return (
+ shouldHave ?
+ new Promise((resolve, reject) => chrome.permissions.request(permissions, (result) => {
+ const e = chrome.runtime.lastError;
+ if (e) {
+ reject(new Error(e.message));
+ } else {
+ resolve(result);
+ }
+ })) :
+ new Promise((resolve, reject) => chrome.permissions.remove(permissions, (result) => {
+ const e = chrome.runtime.lastError;
+ if (e) {
+ reject(new Error(e.message));
+ } else {
+ resolve(!result);
+ }
+ }))
+ );
+ }
+
+ getAllPermissions() {
+ return new Promise((resolve, reject) => chrome.permissions.getAll((result) => {
+ const e = chrome.runtime.lastError;
+ if (e) {
+ reject(new Error(e.message));
+ } else {
+ resolve(result);
+ }
+ }));
+ }
+
+ getRequiredPermissionsForAnkiFieldValue(fieldValue) {
+ const markers = this._getAnkiFieldMarkers(fieldValue);
+ const markerPermissions = this._ankiFieldMarkersRequiringClipboardPermission;
+ for (const marker of markers) {
+ if (markerPermissions.has(marker)) {
+ return ['clipboardRead'];
+ }
+ }
+ return [];
+ }
+
+ hasRequiredPermissionsForOptions(permissions, options) {
+ const permissionsSet = new Set(permissions.permissions);
+
+ if (!permissionsSet.has('nativeMessaging')) {
+ if (options.parsing.enableMecabParser) {
+ return false;
+ }
+ }
+
+ if (!permissionsSet.has('clipboardRead')) {
+ if (options.clipboard.enableBackgroundMonitor || options.clipboard.enableSearchPageMonitor) {
+ return false;
+ }
+ const fieldMarkersRequiringClipboardPermission = this._ankiFieldMarkersRequiringClipboardPermission;
+ const fieldsList = [
+ options.anki.terms.fields,
+ options.anki.kanji.fields
+ ];
+ for (const fields of fieldsList) {
+ for (const fieldValue of Object.values(fields)) {
+ const markers = this._getAnkiFieldMarkers(fieldValue);
+ for (const marker of markers) {
+ if (fieldMarkersRequiringClipboardPermission.has(marker)) {
+ return false;
+ }
+ }
+ }
+ }
+ }
+
+ return true;
+ }
+
+ // Private
+
+ _getAnkiFieldMarkers(fieldValue) {
+ const pattern = this._ankiMarkerPattern;
+ const markers = [];
+ let match;
+ while ((match = pattern.exec(fieldValue)) !== null) {
+ markers.push(match[1]);
+ }
+ return markers;
+ }
+}