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index.js
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index.js
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const fs = require("fs"),
path = require("path"),
{ spawn } = require("child_process");
const ndz = require("node-stream-zip"),
fet = require("node-fetch"),
// request = require("request"),
archiver = require("archiver");
const envs = {
isDocker: process.env.IS_DOCKER || false,
timeout: process.env.TIMEOUT || 0,
useWget: process.env.USE_WGET || false,
};
let scanDir = path.resolve(`${__dirname}/data`);
let dlDir = `${__dirname}/downloading`;
let logFile = `${__dirname}/log.txt`;
let blacklisted = fs.readFileSync(`${__dirname}/blacklisted.txt`, { encoding: "utf-8" });
let fileStream = fs.createWriteStream(logFile, { encoding: "utf-8", flags: "a" });
function log(msg) {
let d = new Date(), dStr = `${d.getDate()}/${d.getMonth() + 1}/${d.getFullYear()} ${d.getHours()}:${d.getMinutes()}:${d.getSeconds()}`;
console.log(`${(envs.isDocker === "true") ? "" : `${dStr} | `}${msg}`);
fileStream.write(`${dStr} | ${msg}\n`);
}
async function downloadChapter(chapterObj) {
let chapterData = await mdAPI.getChapter(chapterObj.chapterId);
let path = `${dlDir}/${chapterObj.chapterId}`;
if (!fs.existsSync(path)) fs.mkdirSync(path, { recursive: true });
return chapterData.urls.reduce((cp, url, index, {length: arr}) => cp.then((e) => new Promise((resolve) => {
let localName = `${index}${url.match(/.[a-z]+$/g)[0]}`
setTimeout(() => {
if (envs.useWget) {
let retry = 0;
const recall = () => {
const child = spawn("wget", [`${url}`, `-O`, `${path}/${localName}`]);
child.stderr.on("data", (data) => {
log(`[WGET] ${data.toString()}`);
});
child.on("exit", (code) => {
if (code !== 0) {
log(`[WGET][${code}] Retry No. ${++retry}`);
return recall();
}
log(`[WGET][${code}] Downloaded: ${index + 1}/${arr}: ${chapterObj.chapterId}/${localName}`);
resolve();
});
}
recall();
} else {
fet(url, { timeout: 0 }).then((res) => res.arrayBuffer()).then((res) => {
fs.writeFileSync(`${path}/${localName}`, Buffer.from(res));
log(`Downloaded: ${index + 1}/${arr}: ${chapterObj.chapterId}/${localName}`);
resolve();
});
}
}, 1000);
})), Promise.resolve());
}
function compressChapter(serie, chapterId, chapter) {
log(`Compressing: ${serie}/${chapter} | ${chapterId}`)
return new Promise((resolve) => {
if (!chapter) chapter = 1;
let archive = archiver("zip");
archive.pipe(fs.createWriteStream(`${scanDir}/${serie}/Ch. ${chapter}.zip`)).on("close", () => {
fs.rmSync(`${dlDir}/${chapterId}`, { recursive: true, force: true });
resolve();
});
archive.directory(`${dlDir}/${chapterId}`, false);
archive.finalize();
});
}
function init() {
new Promise((res) => {
log("Initializing...");
log("Listing offline assets...");
let idsTable = {};
fs.readdirSync(scanDir, { encoding: "utf-8", withFileTypes: true })
.filter((item) => item.isDirectory())
.reduce((cp, { name }, index, { length: totalLen }) => cp.then(() => new Promise(async (resolve) => {
log(`Reading dir: ${index +1}/${totalLen}:${scanDir}/${name}`);
idsTable[ name ] = {
mdId: null,
chapters: [],
};
let files = fs.readdirSync(`${scanDir}/${name}`);
for (let file of files) {
let zip = new ndz.async({ file: `${scanDir}/${name}/${file}` });
let hasComicInfo = /comicinfo\.xml/gi.test( Object.keys(await zip.entries()).toString() );
if (idsTable[name].mdId == null && hasComicInfo) {
let match = (await zip.entryData("ComicInfo.xml")).toString("utf-8").match(/(?<=title\/)[^\\\/<\n]+/gi);
idsTable[name].mdId = (match.length) ? match[0] : "";
}
idsTable[name].chapters.push( file.match(/\d+(\.\d+)?/g)[0] );
}
resolve();
})), Promise.resolve()).finally(() => {
res(idsTable);
});
})
.then((items) => {
let dlList = [],
hashTable = {};
log("Fetching items...");
return Object.keys(items).reduce((cp, mangaName, index, { length: totalLen }) => cp.then(() => new Promise(res => {
log(`Fetching ${index +1}/${totalLen}: ${mangaName}`);
let manga = items[mangaName];
hashTable[mangaName] = manga.chapters;
if (manga.mdId === null) return res();
if ((new RegExp(manga.mdId, "gi")).test(blacklisted)) {
log(`[Blacklisted] ${manga.mdId} Moving on...`);
return res();
}
mdAPI.getMangaChapters(manga.mdId).then((mdResponse) => {
for (let item of mdResponse.data) {
if (!hashTable[mangaName].includes(item.attributes.chapter)) {
dlList.push({
name: mangaName,
chapter: item.attributes.chapter,
chapterId: item.id
});
hashTable[mangaName].push(item.attributes.chapter);
}
}
if (index && !(index % 5)) {
log(`[Fetch Chapters] Timeout for ${envs.timeout} second(s) to avoid rate limit.`);
setTimeout(() => {
res();
}, +envs.timeout * 1000);
} else {
res();
}
});
})), Promise.resolve()).then(() => new Promise((res) => {
log(`[Post Fetch] Timeout for ${(+envs.timeout) / 2} second(s) to avoid rate limit.`);
setTimeout(() => {
res(dlList);
}, +envs.timeout * 500);
}));
})
.then((items) => {
if (items.length) {
log(`Download & Compress ${items.length} Chapter(s)...`);
return items.reduce((cp, item, index, {length: total}) => cp.then(() => new Promise((res) => {
log(`${index +1}/${total} || ${item.chapterId} | ${item.name}/${item.chapter}`);
Promise.resolve(downloadChapter(item))
.then(() => compressChapter(item.name, item.chapterId, item.chapter))
.then(() => {
log(`[Download] Timeout for ${envs.timeout} second(s) to avoid rate limit.`);
setTimeout(() => {
res();
}, +envs.timeout * 1000);
})
})), Promise.resolve());
}
})
.finally(() => log("Done."));
}
let mdAPI = null;
(async () => {
mdAPI = await require("./mdv3.js");
if (mdAPI.token) {
console.log(mdAPI);
init();
} else {
throw new Error("Token/Login Credentials not found.");
}
})();