different-ai/openwork · error

Invalid ZIP central directory entry.

Error message

Invalid ZIP central directory entry.

What it means

Error "Invalid ZIP central directory entry." thrown in different-ai/openwork.

Source

Thrown at apps/desktop/electron/workspace-archive.mjs:198

  const start = Math.max(0, buffer.length - 0xffff - 22);
  for (let offset = buffer.length - 22; offset >= start; offset -= 1) {
    if (buffer.readUInt32LE(offset) === ZIP_END_OF_CENTRAL_DIRECTORY) return offset;
  }
  throw new Error("Failed to find ZIP central directory.");
}

function listZipEntries(buffer) {
  if (buffer.byteLength > MAX_ARCHIVE_BYTES) throw new Error("Workspace archive is too large.");
  const eocd = findEndOfCentralDirectory(buffer);
  const count = buffer.readUInt16LE(eocd + 10);
  if (count > MAX_ARCHIVE_ENTRIES) throw new Error("Workspace archive contains too many entries.");
  const centralOffset = buffer.readUInt32LE(eocd + 16);
  const entries = [];
  let totalUncompressed = 0;
  let cursor = centralOffset;
  for (let i = 0; i < count; i += 1) {
    if (buffer.readUInt32LE(cursor) !== ZIP_CENTRAL_DIRECTORY_HEADER) {
      throw new Error("Invalid ZIP central directory entry.");
    }
    const method = buffer.readUInt16LE(cursor + 10);
    const compressedSize = buffer.readUInt32LE(cursor + 20);
    const uncompressedSize = buffer.readUInt32LE(cursor + 24);
    if (uncompressedSize > MAX_ENTRY_UNCOMPRESSED_BYTES) throw new Error(`Archive entry exceeds the ${MAX_ENTRY_UNCOMPRESSED_BYTES}-byte limit.`);
    totalUncompressed += uncompressedSize;
    if (totalUncompressed > MAX_TOTAL_UNCOMPRESSED_BYTES) throw new Error("Workspace archive contains too much uncompressed data.");
    const nameLength = buffer.readUInt16LE(cursor + 28);
    const extraLength = buffer.readUInt16LE(cursor + 30);
    const commentLength = buffer.readUInt16LE(cursor + 32);
    const localOffset = buffer.readUInt32LE(cursor + 42);
    const name = buffer.toString("utf8", cursor + 46, cursor + 46 + nameLength);
    entries.push({ name, method, compressedSize, uncompressedSize, localOffset });
    cursor += 46 + nameLength + extraLength + commentLength;
  }
  return entries;
}

View on GitHub (pinned to 2b7df46e8a)

When it happens

Trigger: Thrown at apps/desktop/electron/workspace-archive.mjs:198 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of different-ai/openwork@2b7df46e8a (2026-09-01). Data as JSON: /api/errors/f6f0d5e2f4fefc44. Report an issue: GitHub.