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docs: update README (unified stream schema, MoviesClub, registry mapping, docker run)\nchore(release): 1.0.4 tag prep\nchore: ignore restart.trigger and .vscode
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class JsUnpacker {
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static Unbase = class {
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constructor(radix) {
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this.ALPHABET_62 =
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'0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
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this.ALPHABET_95 =
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' !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
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this.alphabet = null;
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this.dictionary = {};
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this.radix = radix;
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if (radix > 36) {
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if (radix < 62) {
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this.alphabet = this.ALPHABET_62.substring(0, radix);
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} else if (radix > 62 && radix < 95) {
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this.alphabet = this.ALPHABET_95.substring(0, radix);
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} else if (radix === 62) {
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this.alphabet = this.ALPHABET_62;
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} else if (radix === 95) {
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this.alphabet = this.ALPHABET_95;
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}
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for (let i = 0; i < this.alphabet.length; i++) {
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this.dictionary[this.alphabet[i]] = i;
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}
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}
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}
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unbase(str) {
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let ret = 0;
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if (this.alphabet === null) {
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ret = parseInt(str, this.radix);
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} else {
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const tmp = str.split('').reverse().join('');
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for (let i = 0; i < tmp.length; i++) {
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ret += Math.pow(this.radix, i) * this.dictionary[tmp[i]];
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}
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}
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return ret;
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}
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};
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constructor(packedJS) {
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this.packedJS = packedJS;
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}
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detect() {
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const js = this.packedJS.replace(/\s/g, '');
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const regex = /eval\(function\(p,a,c,k,e,(?:r|d)/;
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return regex.test(js);
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}
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unpack() {
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let js = this.packedJS;
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try {
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const regex =
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/}\s*\('(.*)',\s*(.*?),\s*(\d+),\s*'(.*?)'\.split\('\|'\)/s;
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const match = js.match(regex);
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if (match && match.length === 5) {
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let payload = match[1].replace(/\\'/g, "'");
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const radixStr = match[2];
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const countStr = match[3];
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const symtab = match[4].split('|');
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let radix = 36;
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let count = 0;
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try {
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radix = parseInt(radixStr);
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} catch (e) {}
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try {
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count = parseInt(countStr);
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} catch (e) {}
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if (symtab.length !== count) {
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throw new Error('Unknown p.a.c.k.e.r. encoding');
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}
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const unbase = new this.constructor.Unbase(radix);
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const wordRegex = /\b\w+\b/g;
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let decoded = payload;
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let replaceOffset = 0;
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let wordMatch;
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while ((wordMatch = wordRegex.exec(payload)) !== null) {
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const word = wordMatch[0];
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const x = unbase.unbase(word);
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let value = null;
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if (x < symtab.length) {
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value = symtab[x];
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}
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if (value && value.length > 0) {
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const start = wordMatch.index + replaceOffset;
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const end = start + word.length;
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decoded =
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decoded.substring(0, start) +
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value +
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decoded.substring(end);
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replaceOffset += value.length - word.length;
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}
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}
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return decoded;
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}
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} catch (e) {
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return null;
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}
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return null;
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}
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}
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// CommonJS exports
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module.exports = JsUnpacker;
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