The fingerprint payload beacons fingerprint data as base64url JSON in
GET query params: ?o=1 for the bare-open beacon, ?d=<blob> for a
single-shot dump, or ?s/i/n/d=<chunk> for chunked dumps. Until now
those params were buried inside request_path; consumers had to parse
the URL themselves.
Worker now extracts them in _extract_fingerprint and merges into
raw_headers under reserved _fp* keys:
* _fp_open — bare-open marker
* _fp — decoded fingerprint dict (single-shot path)
* _fp_sid/idx/total/chunk — chunked metadata + raw base64 (reassembly
is a downstream concern, not the worker's job)
* _fp_decode_error / _fp_oversize — failure markers for trash dumps
Per-chunk size capped at 8KB so an attacker spamming /c/<known_slug>
can't inflate trigger rows indefinitely. Decode failures degrade
gracefully — the trigger row still records the hit, just with a
_fp_decode_error flag instead of structured fingerprint data.
Tests cover the single-shot decode, bare-open flag, chunked metadata,
malformed input, and oversize drop paths.
Two new synthesised-artifact generators that bake the obfuscated
fingerprint payload into plausible-looking decoy files:
* fingerprint_html — a mundane "Internal Asset Directory" page with a
small table of fake hosts; the obfuscated payload is inlined at the
bottom of <body>. Visible content (row pool slice, sync timestamp)
also varies per mint via SHA-256-derived stable ints, so two
extracted canaries don't diff to zero even on the rendered surface.
* fingerprint_svg — standalone SVG with an embedded <script> CDATA
block. SVG <script> only fires for top-level loads / <object> /
<iframe>; <img>-referenced renders are safely inert.
Both derive the mint UUID via uuid.uuid5 from the callback token, so
re-mints are byte-identical (preserving the generator determinism
contract) AND the same token produces the same mint UUID across HTML
and SVG variants — the worker can correlate beacons across artifact
shapes.
Wired into the factory + KNOWN_GENERATORS, default placement paths
under ~/Documents/asset_directory.html and ~/Documents/network_topology.svg
for both linux and windows personas. Tests cover determinism, per-token
divergence, structural validity (DOCTYPE/SVG headers), and that the
beacon URL stays inside the obfuscated string array (not in plaintext).
The two new entries skip in test_generators.py when Node toolchain is
absent so bare CI checkouts still pass.
Adds the load-bearing primitives for obfuscated browser-fingerprinting
canaries. Step 3 (HTML/SVG generators) and step 4 (worker-side
fingerprint ingestion) build on top of these.
* decnet/canary/obfuscator.py - javascript-obfuscator wrapper. Seed
and polymorphic config bits both derive from the callback token, so
output is byte-identical for the same mint (preserving the generator
determinism contract from base.py) and structurally distinct across
mints.
* decnet/canary/fingerprint_payload.js - port of canary-self-test.html
with the rendering UI stripped. Two placeholders (BEACON_URL,
MINT_UUID) substituted before obfuscation. MVP beacon strategy:
bare-open GET pixel first, then base64url-encoded fingerprint as
query params on subsequent GETs (chunked above ~6KB) so the existing
worker records hits before step-4 lands.
* decnet/canary/_obfuscate_helper.js - Node subprocess helper that
reads code+options JSON from stdin and writes obfuscated JS to
stdout. Vendored javascript-obfuscator under decnet/canary/.
* tests/canary/test_obfuscator.py - determinism, per-mint divergence,
template substitution, Node syntax check, error path.
Extracts the docker-exec-with-base64-stdin pattern out of canary/planter
and orchestrator/drivers/ssh into a shared decnet.decky_io package.
Both consumers now delegate; the canary planter test still proves the
contract end-to-end.
Adds POST/DELETE /api/v1/deckies/files for arbitrary file drops.
Container resolution is shared with the canary path: topology_id absent
means fleet (<name>-ssh), present routes through resolve_decky_container
which picks <name>-ssh when the topology decky exposes ssh, else the
topology base container decnet_t_<id8>_<name>.
Path validation rejects relative paths and '..' traversal at the request
model layer. Bad base64 → 400; unknown topology → 404; decky not in
topology → 422; docker exec failure → 409.
Topology deploys now plant the configured canary baseline set on every
decky in the topology, mirroring the fleet-deploy hook. Containers are
resolved via resolve_topology_container — <decky>-ssh when the decky
exposes an ssh service, else the topology base container
decnet_t_<id8>_<decky>.
The planter's plant/revoke/seed_baseline grow an optional container=
kwarg; default preserves the fleet <name>-ssh resolution.
