150 lines
4.5 KiB
JavaScript
150 lines
4.5 KiB
JavaScript
/*
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* Copyright (C) 2016-2020 Yomichan Authors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* 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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class AnkiConnect {
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constructor(server) {
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this._enabled = false;
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this._server = server;
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this._localVersion = 2;
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this._remoteVersion = 0;
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this._versionCheckPromise = null;
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}
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setServer(server) {
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this._server = server;
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}
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getServer() {
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return this._server;
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}
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setEnabled(enabled) {
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this._enabled = enabled;
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}
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isEnabled() {
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return this._enabled;
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}
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async addNote(note) {
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if (!this._enabled) { return null; }
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await this._checkVersion();
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return await this._invoke('addNote', {note});
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}
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async canAddNotes(notes) {
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if (!this._enabled) { return []; }
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await this._checkVersion();
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return await this._invoke('canAddNotes', {notes});
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}
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async getDeckNames() {
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if (!this._enabled) { return []; }
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await this._checkVersion();
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return await this._invoke('deckNames');
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}
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async getModelNames() {
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if (!this._enabled) { return []; }
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await this._checkVersion();
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return await this._invoke('modelNames');
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}
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async getModelFieldNames(modelName) {
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if (!this._enabled) { return []; }
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await this._checkVersion();
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return await this._invoke('modelFieldNames', {modelName});
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}
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async guiBrowse(query) {
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if (!this._enabled) { return []; }
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await this._checkVersion();
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return await this._invoke('guiBrowse', {query});
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}
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async storeMediaFile(fileName, dataBase64) {
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if (!this._enabled) {
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throw new Error('AnkiConnect not enabled');
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}
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await this._checkVersion();
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return await this._invoke('storeMediaFile', {filename: fileName, data: dataBase64});
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}
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async findNoteIds(notes, duplicateScope) {
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if (!this._enabled) { return []; }
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await this._checkVersion();
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const actions = notes.map((note) => {
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let query = (duplicateScope === 'deck' ? `"deck:${this._escapeQuery(note.deckName)}" ` : '');
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query += this._fieldsToQuery(note.fields);
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return {action: 'findNotes', params: {query}};
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});
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return await this._invoke('multi', {actions});
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}
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// Private
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async _checkVersion() {
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if (this._remoteVersion < this._localVersion) {
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if (this._versionCheckPromise === null) {
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const promise = this._invoke('version');
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promise
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.catch(() => {})
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.finally(() => { this._versionCheckPromise = null; });
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this._versionCheckPromise = promise;
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}
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this._remoteVersion = await this._versionCheckPromise;
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if (this._remoteVersion < this._localVersion) {
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throw new Error('Extension and plugin versions incompatible');
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}
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}
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}
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async _invoke(action, params) {
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const response = await fetch(this._server, {
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method: 'POST',
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mode: 'cors',
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cache: 'default',
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credentials: 'omit',
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redirect: 'follow',
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referrerPolicy: 'no-referrer',
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body: JSON.stringify({action, params, version: this._localVersion})
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});
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const result = await response.json();
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if (isObject(result)) {
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const error = result.error;
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if (typeof error !== 'undefined') {
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throw new Error(`AnkiConnect error: ${error}`);
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}
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}
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return result;
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}
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_escapeQuery(text) {
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return text.replace(/"/g, '');
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}
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_fieldsToQuery(fields) {
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const fieldNames = Object.keys(fields);
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if (fieldNames.length === 0) {
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return '';
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}
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const key = fieldNames[0];
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return `"${key.toLowerCase()}:${this._escapeQuery(fields[key])}"`;
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}
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}
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