Files
kodjodevf-mangayomi-extensions/javascript/anime/src/es/tioanime.js
2024-11-29 08:54:17 +01:00

801 lines
28 KiB
JavaScript

const mangayomiSources = [{
"name": "TioAnime",
"lang": "es",
"baseUrl": "https://tioanime.com",
"apiUrl": "",
"iconUrl": "https://tioanime.com/assets/img/tio_fb.jpg",
"typeSource": "single",
"isManga": false,
"version": "0.1.11",
"dateFormat": "",
"dateFormatLocale": "",
"pkgPath": "anime/src/es/tioanime.js"
}];
class DefaultExtension extends MProvider {
constructor () {
super();
this.client = new Client();
}
getHeaders(url) {
throw new Error("getHeaders not implemented");
}
async parseAnimeList(url) {
const res = await this.client.get(url);
const doc = new Document(res.body);
const elements = doc.select("ul.animes > li");
const list = [];
for (const element of elements) {
const name = element.selectFirst(".title").text;
const imageUrl = this.source.baseUrl + element.selectFirst("img").getSrc;
const link = element.selectFirst("a").getHref;
list.push({ name, imageUrl, link });
}
const isLastPage = doc.selectFirst("li.page-item.active + li").text == "»";
return { "list": list, "hasNextPage": !isLastPage };
}
statusFromString(status) {
return {
"En emision": 0,
"Finalizado": 1
}[status] ?? 5;
}
async getPopular(page) {
return await this.parseAnimeList(`${this.source.baseUrl}/directorio?p=${page}`);
}
async getLatestUpdates(page) {
return await this.parseAnimeList(`${this.source.baseUrl}/directorio?p=${page}`);
}
async search(query, page, filters) {
query = query.trim().replaceAll(/\ +/g, "+");
let url = `${this.source.baseUrl}/directorio?q=${query}&p=${page}`;
return await this.parseAnimeList(url);
}
async getDetail(url) {
const res = await this.client.get(this.source.baseUrl + url);
const doc = new Document(res.body);
const detail = {};
const info = doc.selectFirst("article.anime-single");
const episodeCount = parseInt(/episodes = \[(\d+)/.exec(doc.select("script").pop().innerHtml)[1]);
const episodeUrl = url.replace("/anime", "/ver") + "-";
detail.name = info.selectFirst("h1").text;
detail.status = this.statusFromString(info.selectFirst("a").text);
detail.imageUrl = this.source.baseUrl + info.selectFirst("img").getSrc;
detail.description = info.selectFirst("p.sinopsis").text.trim();
detail.genre = info.select("p.genres a").map(e => e.text.trim());
detail.episodes = [];
for (let i = 0; i < episodeCount; i++) {
const name = `Episodio ${i + 1}`;
const url = episodeUrl + (i + 1);
detail.episodes.push({ name, url });
}
detail.episodes.reverse();
return detail;
}
// For anime episode video list
async getVideoList(url) {
const res = await this.client.get(this.source.baseUrl + url);
const doc = new Document(res.body);
let promises = [];
const videos = [];
// get type
const type = /\blatino\b/i.test(url) ? 'Dub' : 'Sub';
// get links
const raws = [...doc.select("script").pop().innerHtml.matchAll(/\[".*?\]/g)];
// extract videos
for (const raw of raws) {
const data = JSON.parse(raw[0]);
const host = data[0];
const link = data[1];
promises.push(extractAny(link, host.toLowerCase(), 'Español', type, host));
}
for (const p of (await Promise.allSettled(promises))) {
if (p.status == 'fulfilled') {
videos.push.apply(videos, p.value);
}
}
return sortVideos(videos);
}
getFilterList() {
throw new Error("getFilterList not implemented");
}
getSourcePreferences() {
const languages = ['Español'];
const types = ['Sub'];
const resolutions = ['1080p', '720p', '480p'];
const hosts = ['Okru', 'VidGuard', 'Voe', 'YourUpload'];
return [
{
key: 'lang',
listPreference: {
title: 'Preferred Language',
summary: 'If available, this language will be chosen by default. Priority = 0 (lower is better)',
valueIndex: 0,
entries: languages,
entryValues: languages
}
},
{
key: 'type',
listPreference: {
title: 'Preferred Type',
summary: 'If available, this type will be chosen by default. Priority = 1 (lower is better)',
valueIndex: 0,
entries: types,
entryValues: types
}
},
{
key: 'res',
listPreference: {
title: 'Preferred Resolution',
summary: 'If available, this resolution will be chosen by default. Priority = 2 (lower is better)',
valueIndex: 0,
entries: resolutions,
entryValues: resolutions
}
},
{
key: 'host',
listPreference: {
title: 'Preferred Host',
summary: 'If available, this hoster will be chosen by default. Priority = 3 (lower is better)',
valueIndex: 0,
entries: hosts,
entryValues: hosts
}
}
];
}
}
/***************************************************************************************************
*
* mangayomi-js-helpers v1.2
*
* # Video Extractors
* - vidGuardExtractor
* - doodExtractor
* - vidozaExtractor
* - okruExtractor
* - amazonExtractor
* - vidHideExtractor
* - filemoonExtractor
* - mixdropExtractor
* - speedfilesExtractor
* - luluvdoExtractor
* - burstcloudExtractor (not working, see description)
*
* # Video Extractor Wrappers
* - streamWishExtractor
* - voeExtractor
* - mp4UploadExtractor
* - yourUploadExtractor
* - streamTapeExtractor
* - sendVidExtractor
*
* # Video Extractor helpers
* - extractAny
*
* # Playlist Extractors
* - m3u8Extractor
* - jwplayerExtractor
*
* # Extension Helpers
* - sortVideos()
*
* # Uint8Array
* - Uint8Array.fromBase64()
* - Uint8Array.prototype.toBase64()
* - Uint8Array.prototype.decode()
*
* # String
* - String.prototype.encode()
* - String.decode()
* - String.prototype.reverse()
* - String.prototype.swapcase()
* - getRandomString()
*
* # Encode/Decode Functions
* - decodeUTF8
* - encodeUTF8
*
* # Url
* - absUrl()
*
***************************************************************************************************/
//--------------------------------------------------------------------------------------------------
// Video Extractors
//--------------------------------------------------------------------------------------------------
async function vidGuardExtractor(url) {
// get html
const res = await new Client().get(url);
const doc = new Document(res.body);
const script = doc.selectFirst('script:contains(eval)');
// eval code
const code = script.text;
eval?.('var window = {};');
eval?.(code);
const playlistUrl = globalThis.window.svg.stream;
// decode sig
const encoded = playlistUrl.match(/sig=(.*?)&/)[1];
const charCodes = [];
for (let i = 0; i < encoded.length; i += 2) {
charCodes.push(parseInt(encoded.slice(i, i + 2), 16) ^ 2);
}
let decoded = Uint8Array.fromBase64(
String.fromCharCode(...charCodes))
.slice(5, -5)
.reverse();
for (let i = 0; i < decoded.length; i += 2) {
let tmp = decoded[i];
decoded[i] = decoded[i + 1];
decoded[i + 1] = tmp;
}
decoded = decoded.decode();
return await m3u8Extractor(playlistUrl.replace(encoded, decoded), null);
}
async function doodExtractor(url) {
const dartClient = new Client({ 'useDartHttpClient': true, "followRedirects": false });
let response = await dartClient.get(url);
while ("location" in response.headers) {
response = await dartClient.get(response.headers.location);
}
const newUrl = response.request.url;
const doodhost = newUrl.match(/https:\/\/(.*?)\//, newUrl)[0].slice(8, -1);
const md5 = response.body.match(/'\/pass_md5\/(.*?)',/, newUrl)[0].slice(11, -2);
const token = md5.substring(md5.lastIndexOf("/") + 1);
const expiry = new Date().valueOf();
const randomString = getRandomString(10);
response = await new Client().get(`https://${doodhost}/pass_md5/${md5}`, { "Referer": newUrl });
const videoUrl = `${response.body}${randomString}?token=${token}&expiry=${expiry}`;
const headers = { "User-Agent": "Mangayomi", "Referer": doodhost };
return [{ url: videoUrl, originalUrl: videoUrl, headers: headers, quality: '' }];
}
async function vidozaExtractor(url) {
let response = await new Client({ 'useDartHttpClient': true, "followRedirects": true }).get(url);
const videoUrl = response.body.match(/https:\/\/\S*\.mp4/)[0];
return [{ url: videoUrl, originalUrl: videoUrl, quality: '' }];
}
async function okruExtractor(url) {
const res = await new Client().get(url);
const doc = new Document(res.body);
const tag = doc.selectFirst('div[data-options]');
const playlistUrl = tag.attr('data-options').match(/hlsManifestUrl.*?(h.*?id=\d+)/)[1].replaceAll('\\\\u0026', '&');
return await m3u8Extractor(playlistUrl, null);
}
async function amazonExtractor(url) {
const res = await new Client().get(url);
const doc = new Document(res.body);
const videoUrl = doc.selectFirst('video').getSrc;
return videoUrl ? [{ url: videoUrl, originalUrl: videoUrl, headers: null, quality: '' }] : [];
}
async function vidHideExtractor(url) {
const res = await new Client().get(url);
return await jwplayerExtractor(res.body);
}
async function filemoonExtractor(url, headers) {
headers['User-Agent'] = headers['User-Agent'] ?? 'Mangayomi';
delete headers['user-agent'];
let res = await new Client().get(url, headers);
const src = res.body.match(/iframe src="(.*?)"/)?.[1];
if (src) {
res = await new Client().get(src, {
'Referer': url,
'Accept-Language': 'de,en-US;q=0.7,en;q=0.3',
'User-Agent': headers['User-Agent']
});
}
return await jwplayerExtractor(res.body, headers);
}
async function mixdropExtractor(url) {
headers = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36'};
let res = await new Client({ 'useDartHttpClient': true, "followRedirects": false }).get(url, headers);
while ("location" in res.headers) {
res = await new Client({ 'useDartHttpClient': true, "followRedirects": false }).get(res.headers.location, headers);
}
const newUrl = res.request.url;
let doc = new Document(res.body);
const code = doc.selectFirst('script:contains(MDCore):contains(eval)').text;
const unpacked = unpackJs(code);
let videoUrl = unpacked.match(/wurl="(.*?)"/)?.[1];
if (!videoUrl) return [];
videoUrl = 'https:' + videoUrl;
headers.referer = newUrl;
return [{url: videoUrl, originalUrl: videoUrl, quality: '', headers: headers}];
}
async function speedfilesExtractor(url) {
let res = await new Client().get(url);
let doc = new Document(res.body);
const code = doc.selectFirst('script:contains(var)').text;
let b64;
// Get b64
for (const match of code.matchAll(/(?:var|let|const)\s*\w+\s*=\s*["']([^"']+)/g)) {
if (match[1].match(/[g-zG-Z]/)) {
b64 = match[1];
break;
}
}
// decode b64 => b64
const step1 = Uint8Array.fromBase64(b64).reverse().decode().swapcase();
// decode b64 => hex
const step2 = Uint8Array.fromBase64(step1).reverse().decode();
// decode hex => b64
let step3 = [];
for (let i = 0; i < step2.length; i += 2) {
step3.push(parseInt(step2.slice(i, i + 2), 16) - 3);
}
step3 = String.fromCharCode(...step3.reverse()).swapcase();
// decode b64 => url
const videoUrl = Uint8Array.fromBase64(step3).decode();
return [{url: videoUrl, originalUrl: videoUrl, quality: '', headers: null}];
}
async function luluvdoExtractor(url) {
const client = new Client();
const match = url.match(/(.*?:\/\/.*?)\/.*\/(.*)/);
const headers = {'user-agent': 'Mangayomi'};
const res = await client.get(`${match[1]}/dl?op=embed&file_code=${match[2]}`, headers);
return await jwplayerExtractor(res.body, headers);
}
/** Does not work: Client always sets 'charset=utf-8' in Content-Type. */
async function burstcloudExtractor(url) {
let client = new Client();
let res = await client.get(url);
const id = res.body.match(/data-file-id="(.*?)"/)[1];
const headers = {
"Content-Type": "application/x-www-form-urlencoded; charset=UTF-8",
'Referer': url,
};
const data = {
'fileId': id
};
res = await client.post(`https://www.burstcloud.co/file/play-request/`, headers, data);
const videoUrl = res.body.match(/cdnUrl":"(.*?)"/)[1];
return [{
url: videoUrl,
originalUrl: videoUrl,
headers: { 'Referer': url.match(/.*?:\/\/.*?\//) },
quality: ''
}];
}
//--------------------------------------------------------------------------------------------------
// Video Extractor Wrappers
//--------------------------------------------------------------------------------------------------
_streamWishExtractor = streamWishExtractor;
streamWishExtractor = async (url) => {
return (await _streamWishExtractor(url, '')).map(v => {
v.quality = v.quality.slice(3, -1);
return v;
});
}
_voeExtractor = voeExtractor;
voeExtractor = async (url) => {
return (await _voeExtractor(url, '')).map(v => {
v.quality = v.quality.replace(/Voe: (\d+p?)/i, '$1');
return v;
});
}
_mp4UploadExtractor = mp4UploadExtractor;
mp4UploadExtractor = async (url) => {
return (await _mp4UploadExtractor(url)).map(v => {
v.quality = v.quality.match(/\d+p/)?.[0] ?? '';
return v;
});
}
_yourUploadExtractor = yourUploadExtractor;
yourUploadExtractor = async (url) => {
return (await _yourUploadExtractor(url))
.filter(v => !v.url.includes('/novideo'))
.map(v => {
v.quality = '';
return v;
});
}
_streamTapeExtractor = streamTapeExtractor;
streamTapeExtractor = async (url) => {
return await _streamTapeExtractor(url, '');
}
_sendVidExtractor = sendVidExtractor;
sendVidExtractor = async (url) => {
let res = await new Client().get(url);
var videoUrl, quality;
try {
videoUrl = res.body.match(/og:video" content="(.*?\.mp4.*?)"/)[1];
quality = res.body.match(/og:video:height" content="(.*?)"/)?.[1];
quality = quality ? quality + 'p' : '';
} catch (error) {
}
if (!videoUrl) {
return _sendVidExtractor(url, null, '');
}
return [{url: videoUrl, originalUrl: videoUrl, quality: quality, headers: null}];
}
//--------------------------------------------------------------------------------------------------
// Video Extractor Helpers
//--------------------------------------------------------------------------------------------------
async function extractAny(url, method, lang, type, host, headers = null) {
const m = extractAny.methods[method];
return (!m) ? [] : (await m(url, headers)).map(v => {
v.quality = v.quality ? `${lang} ${type} ${v.quality} ${host}` : `${lang} ${type} ${host}`;
return v;
});
};
extractAny.methods = {
'amazon': amazonExtractor,
'burstcloud': burstcloudExtractor,
'doodstream': doodExtractor,
'filemoon': filemoonExtractor,
'luluvdo': luluvdoExtractor,
'mixdrop': mixdropExtractor,
'mp4upload': mp4UploadExtractor,
'okru': okruExtractor,
'sendvid': sendVidExtractor,
'speedfiles': speedfilesExtractor,
'streamtape': streamTapeExtractor,
'streamwish': vidHideExtractor,
'vidguard': vidGuardExtractor,
'vidhide': vidHideExtractor,
'vidoza': vidozaExtractor,
'voe': voeExtractor,
'yourupload': yourUploadExtractor
};
//--------------------------------------------------------------------------------------------------
// Playlist Extractors
//--------------------------------------------------------------------------------------------------
async function m3u8Extractor(url, headers = null) {
// https://developer.apple.com/documentation/http-live-streaming/creating-a-multivariant-playlist
// https://developer.apple.com/documentation/http-live-streaming/adding-alternate-media-to-a-playlist
// define attribute lists
const streamAttributes = [
['avg_bandwidth', /AVERAGE-BANDWIDTH=(\d+)/],
['bandwidth', /\bBANDWIDTH=(\d+)/],
['resolution', /\bRESOLUTION=([\dx]+)/],
['framerate', /\bFRAME-RATE=([\d\.]+)/],
['codecs', /\bCODECS="(.*?)"/],
['video', /\bVIDEO="(.*?)"/],
['audio', /\bAUDIO="(.*?)"/],
['subtitles', /\bSUBTITLES="(.*?)"/],
['captions', /\bCLOSED-CAPTIONS="(.*?)"/]
];
const mediaAttributes = [
['type', /\bTYPE=([\w-]*)/],
['group', /\bGROUP-ID="(.*?)"/],
['lang', /\bLANGUAGE="(.*?)"/],
['name', /\bNAME="(.*?)"/],
['autoselect', /\bAUTOSELECT=(\w*)/],
['default', /\bDEFAULT=(\w*)/],
['instream-id', /\bINSTREAM-ID="(.*?)"/],
['assoc-lang', /\bASSOC-LANGUAGE="(.*?)"/],
['channels', /\bCHANNELS="(.*?)"/],
['uri', /\bURI="(.*?)"/]
];
const streams = [], videos = {}, audios = {}, subtitles = {}, captions = {};
const dict = { 'VIDEO': videos, 'AUDIO': audios, 'SUBTITLES': subtitles, 'CLOSED-CAPTIONS': captions };
const res = await new Client().get(url, headers);
const text = res.body;
if (res.statusCode != 200) {
return [];
}
// collect media
for (const match of text.matchAll(/#EXT-X-MEDIA:(.*)/g)) {
const info = match[1], medium = {};
for (const attr of mediaAttributes) {
const m = info.match(attr[1]);
medium[attr[0]] = m ? m[1] : null;
}
const type = medium.type;
delete medium.type;
const group = medium.group;
delete medium.group;
const typedict = dict[type];
if (typedict[group] == undefined)
typedict[group] = [];
typedict[group].push(medium);
}
// collect streams
for (const match of text.matchAll(/#EXT-X-STREAM-INF:(.*)\s*(.*)/g)) {
const info = match[1], stream = { 'url': absUrl(match[2], url) };
for (const attr of streamAttributes) {
const m = info.match(attr[1]);
stream[attr[0]] = m ? m[1] : null;
}
stream['video'] = videos[stream.video] ?? null;
stream['audio'] = audios[stream.audio] ?? null;
stream['subtitles'] = subtitles[stream.subtitles] ?? null;
stream['captions'] = captions[stream.captions] ?? null;
// format resolution or bandwidth
let quality;
if (stream.resolution) {
quality = stream.resolution.match(/x(\d+)/)[1] + 'p';
} else {
quality = (parseInt(stream.avg_bandwidth ?? stream.bandwidth) / 1000000) + 'Mb/s'
}
// add stream to list
const subs = stream.subtitles?.map((s) => {
return { file: s.uri, label: s.name };
});
const auds = stream.audio?.map((a) => {
return { file: a.uri, label: a.name };
});
streams.push({
url: stream.url,
quality: quality,
originalUrl: stream.url,
headers: headers,
subtitles: subs ?? null,
audios: auds ?? null
});
}
return streams.length ? streams : [{
url: url,
quality: '',
originalUrl: url,
headers: headers,
subtitles: null,
audios: null
}];
}
async function jwplayerExtractor(text, headers) {
// https://docs.jwplayer.com/players/reference/playlists
const getsetup = /setup\(({[\s\S]*?})\)/;
const getsources = /sources:\s*(\[[\s\S]*?\])/;
const gettracks = /tracks:\s*(\[[\s\S]*?\])/;
const unpacked = unpackJs(text);
const videos = [], subtitles = [];
const data = eval('(' + (getsetup.exec(text) || getsetup.exec(unpacked))?.[1] + ')');
if (data){
var sources = data.sources;
var tracks = data.tracks;
} else {
var sources = eval('(' + (getsources.exec(text) || getsources.exec(unpacked))?.[1] + ')');
var tracks = eval('(' + (gettracks.exec(text) || gettracks.exec(unpacked))?.[1] + ')');
}
for (t of tracks) {
if (t.type == "captions") {
subtitles.push({file: t.file, label: t.label});
}
}
for (s of sources) {
if (s.file.includes('master.m3u8')) {
videos.push(...(await m3u8Extractor(s.file, headers)));
} else if (s.file.includes('.mpd')) {
} else {
videos.push({url: s.file, originalUrl: s.file, quality: '', headers: headers});
}
}
return videos.map(v => {
v.subtitles = subtitles;
return v;
});
}
//--------------------------------------------------------------------------------------------------
// Extension Helpers
//--------------------------------------------------------------------------------------------------
function sortVideos(videos) {
const pref = new SharedPreferences();
const getres = RegExp('(\\d+)p?', 'i');
const lang = RegExp(pref.get('lang'), 'i');
const type = RegExp(pref.get('type'), 'i');
const res = RegExp(getres.exec(pref.get('res'))[1], 'i');
const host = RegExp(pref.get('host'), 'i');
let getScore = (q, hasRes) => {
const bLang = lang.test(q), bType = type.test(q), bRes = res.test(q), bHost = host.test(q);
if (hasRes) {
return bLang * (8 + bType * (4 + bRes * (2 + bHost * 1)));
} else {
return bLang * (8 + bType * (4 + (bHost * 3)));
}
}
return videos.sort((a, b) => {
const resA = getres.exec(a.quality)?.[1];
const resB = getres.exec(b.quality)?.[1];
const score = getScore(b.quality, resB) - getScore(a.quality, resA);
if (score) return score;
const qA = resA ? a.quality.replace(resA, (9999 - parseInt(resA)).toString()) : a.quality;
const qB = resA ? b.quality.replace(resB, (9999 - parseInt(resB)).toString()) : b.quality;
return qA.localeCompare(qB);
});
}
//--------------------------------------------------------------------------------------------------
// Uint8Array
//--------------------------------------------------------------------------------------------------
Uint8Array.fromBase64 = function (b64) {
// [00,01,02,03,04,05,06,07,08,\t,\n,0b,0c,\r,0e,0f,10,11,12,13,14,15,16,17,18,19,1a,1b,1c,1d,1e,1f,' ', !, ", #, $, %, &, ', (, ), *, +,',', -, ., /, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, :, ;, <,'=', >, ?, @,A,B,C,D,E,F,G,H,I,J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, [, \, ], ^, _, `, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z, {, |, }, ~,7f]
const m = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, 62, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, 63, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1]
let data = [], val = 0, bits = -8
for (const c of b64) {
let n = m[c.charCodeAt(0)];
if (n == -1) break;
val = (val << 6) + n;
bits += 6;
for (; bits >= 0; bits -= 8)
data.push((val >> bits) & 0xFF);
}
return new Uint8Array(data);
}
Uint8Array.prototype.toBase64 = function () {
const m = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
let b64 = '', val = 0, bits = -6;
for (const b of this) {
val = (val << 8) + b;
bits += 8;
while (bits >= 0) {
b64 += m[(val >> bits) & 0x3F];
bits -= 6;
}
}
if (bits > -6)
b64 += m[(val << -bits) & 0x3F];
return b64 + ['', '', '==', '='][b64.length % 4];
}
Uint8Array.prototype.decode = function (encoding = 'utf-8') {
encoding = encoding.toLowerCase();
if (encoding == 'utf-8') {
return decodeUTF8(this);
}
return null;
}
//--------------------------------------------------------------------------------------------------
// String
//--------------------------------------------------------------------------------------------------
String.prototype.encode = function (encoding = 'utf-8') {
encoding = encoding.toLowerCase();
if (encoding == 'utf-8') {
return encodeUTF8(this);
}
return null;
}
String.decode = function (data, encoding = 'utf-8') {
encoding = encoding.toLowerCase();
if (encoding == 'utf-8') {
return decodeUTF8(data);
}
return null;
}
String.prototype.reverse = function () {
return this.split('').reverse().join('');
}
String.prototype.swapcase = function () {
const isAsciiLetter = /[A-z]/;
const result = [];
for (const l of this)
result.push(isAsciiLetter.test(l) ? String.fromCharCode(l.charCodeAt() ^ 32) : l);
return result.join('');
}
function getRandomString(length) {
const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890";
let result = "";
for (let i = 0; i < length; i++) {
const random = Math.floor(Math.random() * 61);
result += chars[random];
}
return result;
}
//--------------------------------------------------------------------------------------------------
// Encode/Decode Functions
//--------------------------------------------------------------------------------------------------
function decodeUTF8(data) {
const codes = [];
for (let i = 0; i < data.length;) {
const c = data[i++];
const len = (c > 0xBF) + (c > 0xDF) + (c > 0xEF);
let val = c & (0xFF >> (len + 1));
for (const end = i + len; i < end; i++) {
val = (val << 6) + (data[i] & 0x3F);
}
codes.push(val);
}
return String.fromCharCode(...codes);
}
function encodeUTF8(string) {
const data = [];
for (const c of string) {
const code = c.charCodeAt(0);
const len = (code > 0x7F) + (code > 0x7FF) + (code > 0xFFFF);
let bits = len * 6;
data.push((len ? ~(0xFF >> len + 1) : (0)) + (code >> bits));
while (bits > 0) {
data.push(0x80 + ((code >> (bits -= 6)) & 0x3F))
}
}
return new Uint8Array(data);
}
//--------------------------------------------------------------------------------------------------
// Url
//--------------------------------------------------------------------------------------------------
function absUrl(url, base) {
if (url.search(/^\w+:\/\//) == 0) {
return url;
} else if (url.startsWith('/')) {
return base.slice(0, base.lastIndexOf('/')) + url;
} else {
return base.slice(0, base.lastIndexOf('/') + 1) + url;
}
}