/* * Copyright (C) 2017-2020 Alex Yatskov <alex@foosoft.net> * Author: Alex Yatskov <alex@foosoft.net> * * 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/>. */ /* global * jp */ class AudioUriBuilder { constructor() { this._getUrlHandlers = new Map([ ['jpod101', this._getUriJpod101.bind(this)], ['jpod101-alternate', this._getUriJpod101Alternate.bind(this)], ['jisho', this._getUriJisho.bind(this)], ['text-to-speech', this._getUriTextToSpeech.bind(this)], ['text-to-speech-reading', this._getUriTextToSpeechReading.bind(this)], ['custom', this._getUriCustom.bind(this)] ]); } normalizeUrl(url, baseUrl, basePath) { if (url) { if (url[0] === '/') { if (url.length >= 2 && url[1] === '/') { // Begins with "//" url = baseUrl.substring(0, baseUrl.indexOf(':') + 1) + url; } else { // Begins with "/" url = baseUrl + url; } } else if (!/^[a-z][a-z0-9\-+.]*:/i.test(url)) { // No URI scheme => relative path url = baseUrl + basePath + url; } } return url; } async getUri(definition, source, options) { const handler = this._getUrlHandlers.get(source); if (typeof handler === 'function') { try { return await handler(definition, options); } catch (e) { // NOP } } return null; } async _getUriJpod101(definition) { let kana = definition.reading; let kanji = definition.expression; if (!kana && jp.isStringEntirelyKana(kanji)) { kana = kanji; kanji = null; } const params = []; if (kanji) { params.push(`kanji=${encodeURIComponent(kanji)}`); } if (kana) { params.push(`kana=${encodeURIComponent(kana)}`); } return `https://assets.languagepod101.com/dictionary/japanese/audiomp3.php?${params.join('&')}`; } async _getUriJpod101Alternate(definition) { const response = await new Promise((resolve, reject) => { const xhr = new XMLHttpRequest(); xhr.open('POST', 'https://www.japanesepod101.com/learningcenter/reference/dictionary_post'); xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); xhr.addEventListener('error', () => reject(new Error('Failed to scrape audio data'))); xhr.addEventListener('load', () => resolve(xhr.responseText)); xhr.send(`post=dictionary_reference&match_type=exact&search_query=${encodeURIComponent(definition.expression)}`); }); const dom = new DOMParser().parseFromString(response, 'text/html'); for (const row of dom.getElementsByClassName('dc-result-row')) { try { const url = row.querySelector('audio>source[src]').getAttribute('src'); const reading = row.getElementsByClassName('dc-vocab_kana').item(0).textContent; if (url && reading && (!definition.reading || definition.reading === reading)) { return this.normalizeUrl(url, 'https://www.japanesepod101.com', '/learningcenter/reference/'); } } catch (e) { // NOP } } throw new Error('Failed to find audio URL'); } async _getUriJisho(definition) { const response = await new Promise((resolve, reject) => { const xhr = new XMLHttpRequest(); xhr.open('GET', `https://jisho.org/search/${definition.expression}`); xhr.addEventListener('error', () => reject(new Error('Failed to scrape audio data'))); xhr.addEventListener('load', () => resolve(xhr.responseText)); xhr.send(); }); const dom = new DOMParser().parseFromString(response, 'text/html'); try { const audio = dom.getElementById(`audio_${definition.expression}:${definition.reading}`); if (audio !== null) { const url = audio.getElementsByTagName('source').item(0).getAttribute('src'); if (url) { return this.normalizeUrl(url, 'https://jisho.org', '/search/'); } } } catch (e) { // NOP } throw new Error('Failed to find audio URL'); } async _getUriTextToSpeech(definition, options) { const voiceURI = options.audio.textToSpeechVoice; if (!voiceURI) { throw new Error('No voice'); } return `tts:?text=${encodeURIComponent(definition.expression)}&voice=${encodeURIComponent(voiceURI)}`; } async _getUriTextToSpeechReading(definition, options) { const voiceURI = options.audio.textToSpeechVoice; if (!voiceURI) { throw new Error('No voice'); } return `tts:?text=${encodeURIComponent(definition.reading || definition.expression)}&voice=${encodeURIComponent(voiceURI)}`; } async _getUriCustom(definition, options) { const customSourceUrl = options.audio.customSourceUrl; return customSourceUrl.replace(/\{([^}]*)\}/g, (m0, m1) => (hasOwn(definition, m1) ? `${definition[m1]}` : m0)); } }