calckey/packages/backend/test/get-file-info.ts

import * as assert from "assert";
import { fileURLToPath } from "node:url";
import { dirname } from "node:path";
import { getFileInfo } from "../src/misc/get-file-info.js";
import { async } from "./utils.js";

const _filename = fileURLToPath(import.meta.url);
const _dirname = dirname(_filename);

describe("Get file info", () => {
	it("Empty file", async(async () => {
		const path = `${_dirname}/resources/emptyfile`;
		const info = (await getFileInfo(path, {
			skipSensitiveDetection: true,
		})) as any;
		delete info.warnings;
		delete info.blurhash;
		delete info.sensitive;
		delete info.porn;
		assert.deepStrictEqual(info, {
			size: 0,
			md5: "d41d8cd98f00b204e9800998ecf8427e",
			type: {
				mime: "application/octet-stream",
				ext: null,
			},
			width: undefined,
			height: undefined,
			orientation: undefined,
		});
	}));

	it("Generic JPEG", async(async () => {
		const path = `${_dirname}/resources/Lenna.jpg`;
		const info = (await getFileInfo(path, {
			skipSensitiveDetection: true,
		})) as any;
		delete info.warnings;
		delete info.blurhash;
		delete info.sensitive;
		delete info.porn;
		assert.deepStrictEqual(info, {
			size: 25360,
			md5: "091b3f259662aa31e2ffef4519951168",
			type: {
				mime: "image/jpeg",
				ext: "jpg",
			},
			width: 512,
			height: 512,
			orientation: undefined,
		});
	}));

	it("Generic APNG", async(async () => {
		const path = `${_dirname}/resources/anime.png`;
		const info = (await getFileInfo(path, {
			skipSensitiveDetection: true,
		})) as any;
		delete info.warnings;
		delete info.blurhash;
		delete info.sensitive;
		delete info.porn;
		assert.deepStrictEqual(info, {
			size: 1868,
			md5: "08189c607bea3b952704676bb3c979e0",
			type: {
				mime: "image/apng",
				ext: "apng",
			},
			width: 256,
			height: 256,
			orientation: undefined,
		});
	}));

	it("Generic AGIF", async(async () => {
		const path = `${_dirname}/resources/anime.gif`;
		const info = (await getFileInfo(path, {
			skipSensitiveDetection: true,
		})) as any;
		delete info.warnings;
		delete info.blurhash;
		delete info.sensitive;
		delete info.porn;
		assert.deepStrictEqual(info, {
			size: 2248,
			md5: "32c47a11555675d9267aee1a86571e7e",
			type: {
				mime: "image/gif",
				ext: "gif",
			},
			width: 256,
			height: 256,
			orientation: undefined,
		});
	}));

	it("PNG with alpha", async(async () => {
		const path = `${_dirname}/resources/with-alpha.png`;
		const info = (await getFileInfo(path, {
			skipSensitiveDetection: true,
		})) as any;
		delete info.warnings;
		delete info.blurhash;
		delete info.sensitive;
		delete info.porn;
		assert.deepStrictEqual(info, {
			size: 3772,
			md5: "f73535c3e1e27508885b69b10cf6e991",
			type: {
				mime: "image/png",
				ext: "png",
			},
			width: 256,
			height: 256,
			orientation: undefined,
		});
	}));

	it("Generic SVG", async(async () => {
		const path = `${_dirname}/resources/image.svg`;
		const info = (await getFileInfo(path, {
			skipSensitiveDetection: true,
		})) as any;
		delete info.warnings;
		delete info.blurhash;
		delete info.sensitive;
		delete info.porn;
		assert.deepStrictEqual(info, {
			size: 505,
			md5: "b6f52b4b021e7b92cdd04509c7267965",
			type: {
				mime: "image/svg+xml",
				ext: "svg",
			},
			width: 256,
			height: 256,
			orientation: undefined,
		});
	}));

	it("SVG with XML definition", async(async () => {
		// https://github.com/misskey-dev/misskey/issues/4413
		const path = `${_dirname}/resources/with-xml-def.svg`;
		const info = (await getFileInfo(path, {
			skipSensitiveDetection: true,
		})) as any;
		delete info.warnings;
		delete info.blurhash;
		delete info.sensitive;
		delete info.porn;
		assert.deepStrictEqual(info, {
			size: 544,
			md5: "4b7a346cde9ccbeb267e812567e33397",
			type: {
				mime: "image/svg+xml",
				ext: "svg",
			},
			width: 256,
			height: 256,
			orientation: undefined,
		});
	}));

	it("Dimension limit", async(async () => {
		const path = `${_dirname}/resources/25000x25000.png`;
		const info = (await getFileInfo(path, {
			skipSensitiveDetection: true,
		})) as any;
		delete info.warnings;
		delete info.blurhash;
		delete info.sensitive;
		delete info.porn;
		assert.deepStrictEqual(info, {
			size: 75933,
			md5: "268c5dde99e17cf8fe09f1ab3f97df56",
			type: {
				mime: "application/octet-stream", // do not treat as image
				ext: null,
			},
			width: 25000,
			height: 25000,
			orientation: undefined,
		});
	}));

	it("Rotate JPEG", async(async () => {
		const path = `${_dirname}/resources/rotate.jpg`;
		const info = (await getFileInfo(path, {
			skipSensitiveDetection: true,
		})) as any;
		delete info.warnings;
		delete info.blurhash;
		delete info.sensitive;
		delete info.porn;
		assert.deepStrictEqual(info, {
			size: 12624,
			md5: "68d5b2d8d1d1acbbce99203e3ec3857e",
			type: {
				mime: "image/jpeg",
				ext: "jpg",
			},
			width: 512,
			height: 256,
			orientation: 8,
		});
	}));
});