/* * Copyright (C) 2016-2021 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 AnkiConnect { constructor() { this._enabled = false; this._server = null; this._localVersion = 2; this._remoteVersion = 0; this._versionCheckPromise = null; } get server() { return this._server; } set server(value) { this._server = value; } get enabled() { return this._enabled; } set enabled(value) { this._enabled = value; } async isConnected() { try { await this._invoke('version'); return true; } catch (e) { return false; } } async getVersion() { if (!this._enabled) { return null; } await this._checkVersion(); return await this._invoke('version', {}); } async addNote(note) { if (!this._enabled) { return null; } await this._checkVersion(); return await this._invoke('addNote', {note}); } async canAddNotes(notes) { if (!this._enabled) { return []; } await this._checkVersion(); return await this._invoke('canAddNotes', {notes}); } async getDeckNames() { if (!this._enabled) { return []; } await this._checkVersion(); return await this._invoke('deckNames'); } async getModelNames() { if (!this._enabled) { return []; } await this._checkVersion(); return await this._invoke('modelNames'); } async getModelFieldNames(modelName) { if (!this._enabled) { return []; } await this._checkVersion(); return await this._invoke('modelFieldNames', {modelName}); } async guiBrowse(query) { if (!this._enabled) { return []; } await this._checkVersion(); return await this._invoke('guiBrowse', {query}); } async guiBrowseNote(noteId) { return await this.guiBrowse(`nid:${noteId}`); } async storeMediaFile(fileName, dataBase64) { if (!this._enabled) { throw new Error('AnkiConnect not enabled'); } await this._checkVersion(); return await this._invoke('storeMediaFile', {filename: fileName, data: dataBase64}); } async findNoteIds(notes) { if (!this._enabled) { return []; } await this._checkVersion(); const actions = notes.map((note) => { let query = ''; switch (this._getDuplicateScopeFromNote(note)) { case 'deck': query = `"deck:${this._escapeQuery(note.deckName)}" `; break; case 'deck-root': query = `"deck:${this._escapeQuery(this.getRootDeckName(note.deckName))}" `; break; } query += this._fieldsToQuery(note.fields); return {action: 'findNotes', params: {query}}; }); return await this._invoke('multi', {actions}); } getRootDeckName(deckName) { const index = deckName.indexOf('::'); return index >= 0 ? deckName.substring(0, index) : deckName; } // Private async _checkVersion() { if (this._remoteVersion < this._localVersion) { if (this._versionCheckPromise === null) { const promise = this._invoke('version'); promise .catch(() => {}) .finally(() => { this._versionCheckPromise = null; }); this._versionCheckPromise = promise; } this._remoteVersion = await this._versionCheckPromise; if (this._remoteVersion < this._localVersion) { throw new Error('Extension and plugin versions incompatible'); } } } async _invoke(action, params) { const response = await fetch(this._server, { method: 'POST', mode: 'cors', cache: 'default', credentials: 'omit', redirect: 'follow', referrerPolicy: 'no-referrer', body: JSON.stringify({action, params, version: this._localVersion}) }); const result = await response.json(); if (isObject(result)) { const error = result.error; if (typeof error !== 'undefined') { throw new Error(`AnkiConnect error: ${error}`); } } return result; } _escapeQuery(text) { return text.replace(/"/g, ''); } _fieldsToQuery(fields) { const fieldNames = Object.keys(fields); if (fieldNames.length === 0) { return ''; } const key = fieldNames[0]; return `"${key.toLowerCase()}:${this._escapeQuery(fields[key])}"`; } _getDuplicateScopeFromNote(note) { const {options} = note; if (typeof options === 'object' && options !== null) { const {duplicateScope} = options; if (typeof duplicateScope !== 'undefined') { return duplicateScope; } } return null; } }