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/*
* Copyright (C) 2017 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 <http://www.gnu.org/licenses/>.
*/
async function audioBuildUrl(definition, mode, cache={}) {
if (mode === 'jpod101') {
let kana = definition.reading;
let kanji = definition.expression;
if (!kana && wanakana.isHiragana(kanji)) {
kana = kanji;
kanji = null;
}
const params = [];
if (kanji) {
params.push(`kanji=${encodeURIComponent(kanji)}`);
}
if (kana) {
params.push(`kana=${encodeURIComponent(kana)}`);
}
const url = `https://assets.languagepod101.com/dictionary/japanese/audiomp3.php?${params.join('&')}`;
return Promise.resolve(url);
} else if (mode === 'jpod101-alternate') {
return new Promise((resolve, reject) => {
const response = cache[definition.expression];
if (response) {
resolve(response);
} else {
const data = {
post: 'dictionary_reference',
match_type: 'exact',
search_query: definition.expression
};
const params = [];
for (const key in data) {
params.push(`${encodeURIComponent(key)}=${encodeURIComponent(data[key])}`);
}
const xhr = new XMLHttpRequest();
xhr.open('POST', 'https://www.japanesepod101.com/learningcenter/reference/dictionary_post');
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhr.addEventListener('error', () => reject('Failed to scrape audio data'));
xhr.addEventListener('load', () => {
cache[definition.expression] = xhr.responseText;
resolve(xhr.responseText);
});
xhr.send(params.join('&'));
}
}).then(response => {
const dom = new DOMParser().parseFromString(response, 'text/html');
for (const row of dom.getElementsByClassName('dc-result-row')) {
try {
const url = row.querySelector('audio>source[src]').getAttribute('src');
const reading = row.getElementsByClassName('dc-vocab_kana').item(0).innerText;
if (url && reading && (!definition.reading || definition.reading === reading)) {
return normalizeAudioUrl(url, 'https://www.japanesepod101.com', '/learningcenter/reference/');
}
} catch (e) {
// NOP
}
}
});
} else if (mode === 'jisho') {
return new Promise((resolve, reject) => {
const response = cache[definition.expression];
if (response) {
resolve(response);
} else {
const xhr = new XMLHttpRequest();
xhr.open('GET', `https://jisho.org/search/${definition.expression}`);
xhr.addEventListener('error', () => reject('Failed to scrape audio data'));
xhr.addEventListener('load', () => {
cache[definition.expression] = xhr.responseText;
resolve(xhr.responseText);
});
xhr.send();
}
}).then(response => {
try {
const dom = new DOMParser().parseFromString(response, 'text/html');
const audio = dom.getElementById(`audio_${definition.expression}:${definition.reading}`);
if (audio) {
const url = audio.getElementsByTagName('source').item(0).getAttribute('src');
if (url) {
return normalizeAudioUrl(url, 'https://jisho.org', '/search/');
}
}
} catch (e) {
// NOP
}
});
}
else {
return Promise.resolve();
}
}
function normalizeAudioUrl(url, baseUrl, basePath) {
if (url) {
if (url[0] === '/') {
if (url.length >= 2 && url[1] === '/') {
// Begins with "//"
url = baseUrl.substr(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;
}
function audioBuildFilename(definition) {
if (definition.reading || definition.expression) {
let filename = 'yomichan';
if (definition.reading) {
filename += `_${definition.reading}`;
}
if (definition.expression) {
filename += `_${definition.expression}`;
}
return filename += '.mp3';
}
}
async function audioInject(definition, fields, mode) {
let usesAudio = false;
for (const name in fields) {
if (fields[name].includes('{audio}')) {
usesAudio = true;
break;
}
}
if (!usesAudio) {
return true;
}
try {
let audioSourceDefinition = definition;
if (definition.hasOwnProperty('expressions')) {
audioSourceDefinition = definition.expressions[0];
}
const url = await audioBuildUrl(audioSourceDefinition, mode);
const filename = audioBuildFilename(audioSourceDefinition);
if (url && filename) {
definition.audio = {url, filename};
}
return true;
} catch (e) {
return false;
}
}
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