| 30 | } |
| 31 | |
| 32 | function createMinimalZip(entryName: string, content: string): Buffer { |
| 33 | const nameBuf = Buffer.from(entryName, 'utf8'); |
| 34 | const dataBuf = Buffer.from(content, 'utf8'); |
| 35 | const crc = crc32(dataBuf); |
| 36 | |
| 37 | const localHeader = Buffer.alloc(30); |
| 38 | localHeader.writeUInt32LE(0x04034b50, 0); |
| 39 | localHeader.writeUInt16LE(20, 4); |
| 40 | localHeader.writeUInt16LE(0, 6); |
| 41 | localHeader.writeUInt16LE(0, 8); |
| 42 | localHeader.writeUInt16LE(0, 10); |
| 43 | localHeader.writeUInt16LE(0, 12); |
| 44 | localHeader.writeUInt32LE(crc, 14); |
| 45 | localHeader.writeUInt32LE(dataBuf.length, 18); |
| 46 | localHeader.writeUInt32LE(dataBuf.length, 22); |
| 47 | localHeader.writeUInt16LE(nameBuf.length, 26); |
| 48 | localHeader.writeUInt16LE(0, 28); |
| 49 | |
| 50 | const cdHeader = Buffer.alloc(46); |
| 51 | cdHeader.writeUInt32LE(0x02014b50, 0); |
| 52 | cdHeader.writeUInt16LE(20, 4); |
| 53 | cdHeader.writeUInt16LE(20, 6); |
| 54 | cdHeader.writeUInt16LE(0, 8); |
| 55 | cdHeader.writeUInt16LE(0, 10); |
| 56 | cdHeader.writeUInt16LE(0, 12); |
| 57 | cdHeader.writeUInt16LE(0, 14); |
| 58 | cdHeader.writeUInt32LE(crc, 16); |
| 59 | cdHeader.writeUInt32LE(dataBuf.length, 20); |
| 60 | cdHeader.writeUInt32LE(dataBuf.length, 24); |
| 61 | cdHeader.writeUInt16LE(nameBuf.length, 28); |
| 62 | cdHeader.writeUInt16LE(0, 30); |
| 63 | cdHeader.writeUInt16LE(0, 32); |
| 64 | cdHeader.writeUInt16LE(0, 34); |
| 65 | cdHeader.writeUInt16LE(0, 36); |
| 66 | cdHeader.writeUInt32LE(0, 38); |
| 67 | cdHeader.writeUInt32LE(0, 42); |
| 68 | |
| 69 | const eocd = Buffer.alloc(22); |
| 70 | eocd.writeUInt32LE(0x06054b50, 0); |
| 71 | eocd.writeUInt16LE(0, 4); |
| 72 | eocd.writeUInt16LE(0, 6); |
| 73 | eocd.writeUInt16LE(1, 8); |
| 74 | eocd.writeUInt16LE(1, 10); |
| 75 | eocd.writeUInt32LE(46 + nameBuf.length, 12); |
| 76 | eocd.writeUInt32LE(30 + nameBuf.length + dataBuf.length, 16); |
| 77 | eocd.writeUInt16LE(0, 20); |
| 78 | |
| 79 | return Buffer.concat([localHeader, nameBuf, dataBuf, cdHeader, nameBuf, eocd]); |
| 80 | } |
| 81 | |
| 82 | async function serveOnce(buffer: Buffer): Promise<string> { |
| 83 | const { createServer } = await import('node:http'); |