ilia
ce43c5de6d
Map keys 0–9 to destinations, inspect files before deciding, and preview PDF/RAW/ZIP/video with an OLED dark UI polish plus demo seed and tests.
92 lines
3.1 KiB
JavaScript
92 lines
3.1 KiB
JavaScript
'use strict';
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const test = require('node:test');
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const assert = require('node:assert/strict');
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const fs = require('node:fs');
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const os = require('node:os');
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const path = require('node:path');
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const { listZipEntries, formatZipListing } = require('../lib/zip-list');
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function writeTinyZip(dir) {
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// Minimal hand-rolled store-method zip with two files (no compression).
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// Local file headers + central directory + EOCD.
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function local(name, data) {
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const n = Buffer.from(name);
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const header = Buffer.alloc(30);
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header.writeUInt32LE(0x04034b50, 0);
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header.writeUInt16LE(20, 4); // version
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header.writeUInt16LE(0, 6); // flags
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header.writeUInt16LE(0, 8); // store
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header.writeUInt16LE(0, 10);
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header.writeUInt16LE(0, 12);
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header.writeUInt32LE(0, 14); // crc ignored for our reader
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header.writeUInt32LE(data.length, 18);
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header.writeUInt32LE(data.length, 22);
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header.writeUInt16LE(n.length, 26);
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header.writeUInt16LE(0, 28);
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return Buffer.concat([header, n, data]);
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}
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function central(name, data, localOffset) {
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const n = Buffer.from(name);
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const header = Buffer.alloc(46);
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header.writeUInt32LE(0x02014b50, 0);
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header.writeUInt16LE(20, 4);
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header.writeUInt16LE(20, 6);
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header.writeUInt16LE(0, 8);
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header.writeUInt16LE(0, 10);
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header.writeUInt16LE(0, 12);
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header.writeUInt16LE(0, 14);
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header.writeUInt32LE(0, 16);
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header.writeUInt32LE(data.length, 20);
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header.writeUInt32LE(data.length, 24);
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header.writeUInt16LE(n.length, 28);
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header.writeUInt16LE(0, 30);
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header.writeUInt16LE(0, 32);
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header.writeUInt16LE(0, 34);
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header.writeUInt16LE(0, 36);
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header.writeUInt32LE(0, 38);
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header.writeUInt32LE(localOffset, 42);
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return Buffer.concat([header, n]);
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}
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const a = Buffer.from('alpha\n');
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const b = Buffer.from('item,qty\n1,2\n');
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const locA = local('readme.txt', a);
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const locB = local('data/rows.csv', b);
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const body = Buffer.concat([locA, locB]);
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const cen = Buffer.concat([
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central('readme.txt', a, 0),
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central('data/rows.csv', b, locA.length),
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]);
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const eocd = Buffer.alloc(22);
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eocd.writeUInt32LE(0x06054b50, 0);
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eocd.writeUInt16LE(0, 4);
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eocd.writeUInt16LE(0, 6);
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eocd.writeUInt16LE(2, 8);
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eocd.writeUInt16LE(2, 10);
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eocd.writeUInt32LE(cen.length, 12);
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eocd.writeUInt32LE(body.length, 16);
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eocd.writeUInt16LE(0, 20);
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const zipPath = path.join(dir, 'sample.zip');
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fs.writeFileSync(zipPath, Buffer.concat([body, cen, eocd]));
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return zipPath;
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}
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test('listZipEntries reads names and sizes without extracting', async () => {
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const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'swipeanything-zip-'));
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const zipPath = writeTinyZip(dir);
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const listing = await listZipEntries(zipPath);
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assert.equal(listing.totalEntries, 2);
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assert.equal(listing.truncated, false);
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assert.deepEqual(
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listing.entries.map((e) => e.name),
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['readme.txt', 'data/rows.csv']
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);
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assert.equal(listing.entries[0].size, 6);
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const text = formatZipListing(listing);
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assert.match(text, /readme\.txt/);
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assert.match(text, /data\/rows\.csv/);
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fs.rmSync(dir, { recursive: true, force: true });
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});
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