Files
meshcore-analyzer/public
Kpa-clawbot b8846c2db2 fix: show lock message for encrypted channels without key on deep link (#783)
## Problem

Deep-linking to an encrypted channel (e.g. `#/channels/42`) when the
user has no client-side decryption key falls through to the plaintext
API fetch, displaying gibberish base64/binary content instead of a
meaningful message.

## Root Cause

In `selectChannel()`, the encrypted channel key-matching loop iterates
all stored keys. If none match, execution falls through to the normal
plaintext message fetch — which returns raw encrypted data rendered as
gibberish.

## Fix

After the key-matching loop for encrypted channels, return early with
the lock message instead of falling through.

**3 lines added** in `public/channels.js`, **108 lines** regression test
in `test-frontend-helpers.js`.

## Investigation: Sidebar Display

The sidebar filtering is already correct:
- DB path: SQL filters out `enc_` prefix channel hashes
- In-memory path: Only returns `type: CHAN` (server-decrypted) channels,
with `hasGarbageChars` validation
- Server-side decryption: MAC verification (2-byte HMAC) + UTF-8 +
non-printable character validation prevents false-positive decryptions
- Encrypted channels only appear when the toggle is explicitly enabled

## Testing

- All existing tests pass
- New regression test verifies: lock message shown, messages API NOT
called for encrypted channels without key

Fixes #781

---------

Co-authored-by: you <you@example.com>
2026-04-17 16:40:18 -07:00
..
2026-03-18 19:34:05 +00:00