Replaces LICENSE (GPLv3 -> AGPLv3) and prepends
`SPDX-License-Identifier: AGPL-3.0-or-later` to every source file
across decnet/, decnet_web/, tests/, scripts/, and tools/.
Rationale: closes the GPLv3 ASP loophole so any party operating a
modified DECNET as a network service must offer their modified
source. Personal copyright (Samuel Paschuan) + inbound=outbound
contributions make a future unilateral relicense infeasible.
- LICENSE: full AGPL-3.0 text (gnu.org/licenses/agpl-3.0.txt)
- COPYRIGHT: project copyright notice
- tools/add_spdx_headers.py: idempotent header injector
(shebang- and PEP 263-aware)
Touches 1565 source files (.py, .ts, .tsx, .js, .jsx, .css, .sh).
No behavior change; comments only.
Resolve each attacker IP's rDNS name once at first sighting, store on
Attacker.ptr_record, render on AttackerDetail under ORIGIN. Many
attackers run infrastructure with forgotten rDNS that instantly
identifies them once surfaced: scan-node-42.shodan.io,
shady-vps.leasecloud.net, etc.
Resolver lives in decnet/geoip/ptr.py — colocated with enrich_ip
because the shape matches (take an IP, return supplementary
metadata, never raise). Uses the OS resolver via socket.gethostbyaddr
offloaded to the default executor, wrapped with asyncio.wait_for
timeout=2s so a slow authoritative NS can't stall the profiler tick.
Profiler side: _WorkerState grows a ptr_attempted: set[str] bounding
resolution to once per worker lifetime. Cold-start batches resolve
concurrently (Semaphore(_PTR_CONCURRENCY=10)) so a backlog doesn't
serialize 2s ceilings. _build_record gains a keyword-only ptr_record
parameter that, when _UNSET, omits the key from the record dict —
upsert_attacker's attribute-merge loop then preserves whatever's
stored on the row. Explicit None is a "fresh failed attempt" signal
and gets written through.
Env kill-switch DECNET_PTR_ENABLED=false for locked-down deploys
where egress DNS is forbidden. Private / loopback / link-local /
multicast / reserved addresses short-circuit before any DNS call.
IPv6 reverse DNS works transparently through the stdlib resolver.
Schema change — run once on upgrade:
ALTER TABLE attackers
ADD COLUMN ptr_record VARCHAR(256) NULL DEFAULT NULL;
Or drop-and-recreate on dev boxes (db-reset's SQLModel.metadata-driven
table discovery now picks it up automatically since ba155b7).
tests/conftest.py disables DECNET_PTR_ENABLED globally for the same
reason it disables DECNET_GEOIP_ENABLED — unit tests must never hit
the network. tests/geoip/test_ptr.py re-enables explicitly via an
autouse fixture.
Populates Attacker.country_code + country_source (MVP) using the five
RIR delegated-stats files (ARIN/RIPE/APNIC/LACNIC/AFRINIC). Offline,
license-free, no outbound traffic that could burn honeypot stealth.
- decnet.geoip package with factory/base/lookup + rir/ subpackage
(fetch/parse/provider) mirroring the db + bus factory convention
- Profiler._build_record calls enrich_ip on every upsert
- Idempotent ALTER TABLE migrations for both SQLite and MySQL
- decnet geoip refresh/lookup CLI (master-only)
- /var/lib/decnet/geoip seeded by decnet init
- DECNET_GEOIP_ENABLED=false kill-switch; set in tests/conftest.py so
unit tests never trigger the first-access fetch
