forked from miao-moe/QZMusic_PC
57 lines
1.9 KiB
TypeScript
57 lines
1.9 KiB
TypeScript
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import { createHash } from "node:crypto";
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import { readFileSync } from "node:fs";
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import { resolve } from "node:path";
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import { describe, expect, it } from "vitest";
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import { decryptQrcHex, encryptQrcHex } from "../src/formats/eqrc";
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import { parseQrc } from "../src/formats/qrc";
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function decodeXmlEntities(text: string): string {
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return text
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.replace(/</g, "<")
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.replace(/>/g, ">")
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.replace(/"/g, '"')
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.replace(/'/g, "'")
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.replace(/&/g, "&")
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.replace(/ /g, "\n")
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.replace(/ /g, "\r");
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}
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function extractQrcPayload(xmlLike: string): string {
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const match = xmlLike.match(/<!\[CDATA\[([\s\S]*?)\]\]>/);
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if (match?.[1]) return match[1].trim();
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const attrMatch = xmlLike.match(/LyricContent="([^"]*)"/);
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if (!attrMatch?.[1]) return "";
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return decodeXmlEntities(attrMatch[1]).trim();
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}
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describe("eqrc", () => {
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it("decrypts rust sample hex with stable output", () => {
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const hexPath = resolve(__dirname, "eqrc.hex");
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const hex = readFileSync(hexPath, "utf8").trim();
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const decrypted = decryptQrcHex(hex);
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const sha256 = createHash("sha256").update(decrypted).digest("hex");
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const qrcText = extractQrcPayload(decrypted);
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const lines = parseQrc(qrcText);
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expect(hex.length).toBe(7136);
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expect(decrypted.length).toBe(7188);
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expect(sha256).toBe(
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"f3bf2f3b5af01e9f21c5fc49e5ed9ab59370faa530f62b60a38df1881ea31f6a",
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);
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expect(decrypted).toContain("<QrcInfos>");
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expect(decrypted).toContain('<LyricInfo LyricCount="1">');
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expect(qrcText.length).toBeGreaterThan(0);
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expect(lines.length).toBeGreaterThan(0);
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});
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it("keeps decrypt/encrypt/decrypt text stable for rust sample", () => {
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const hexPath = resolve(__dirname, "eqrc.hex");
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const hex = readFileSync(hexPath, "utf8").trim();
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const decrypted = decryptQrcHex(hex);
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const encryptedAgain = encryptQrcHex(decrypted);
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const decryptedAgain = decryptQrcHex(encryptedAgain);
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expect(decryptedAgain).toBe(decrypted);
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});
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});
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