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felhom-controller/controller/scripts/test_gate_decoys.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""test_gate_decoys.py — can this gate be fooled by a LABEL? (R-421)
The controller half of the decoy sweep. Rationale, and the four failure shapes it hunts, are in
`felhom.eu/scripts/test_gate_decoys.py` and `documentation/audits/AUDIT-gate-decoys-2026-09-01.md`.
TWO HOLES THIS FILE PINS, both measured on 2026-09-01 and both fixed the same day:
* **Six gates decided their SCOPE with `os.listdir`**, one directory level. No template
subdirectory existed, so every one was green and correct — and would have stayed green the
moment anyone added `templates/partials/`, which is an ordinary act. `mojibake` and `docker-v`
already used `os.walk` and caught the same planted file, which is the control that proved the
cause was the listing and not the decoy.
* **`debug-routes` and `app-row-dedup` matched text inside COMMENTS.** A dispatcher case left in a
commented-out block counted as a live handler — which is R-400's original defect reached through
the one door its own gate could not see.
Run from `controller/`: python3 scripts/test_gate_decoys.py
Exit 0 all decoys rejected · 1 a decoy passed.
"""
import io
import os
import re
import subprocess
import sys
HERE = os.path.dirname(os.path.abspath(__file__))
CTRL = os.path.dirname(HERE)
TPL = os.path.join(CTRL, "internal", "web", "templates")
SUB = os.path.join(TPL, "partials")
# ── WHAT THIS FILE COVERS ────────────────────────────────────────────────────────────────────────
# AST-parsed by felhom.eu/scripts/decoy_coverage_gate.py. See that file for why it is a declaration
# and not a grep.
COVERS = {
"emoji": "an emoji in templates/partials/ (scope was os.listdir)",
"native-confirm": "a native confirm() in templates/partials/",
"app-row-dedup": "hand-rolled row markup in partials/, AND a commented-out partial call",
"template-id": "a JS reference to a missing id, in partials/",
"secret-markup": "a secret templated into markup, in partials/",
"retrieval-promise": "an unregistered retrieval promise, in partials/",
"mojibake": "CONTROL: already walked; proves the planted file is really reachable",
"debug-routes": "a live dispatcher case commented out - the button survives, the handler dies",
"golden-notice": "R-410 in the other direction: an empty dir must not count as a bake",
"minagent-header": "the word MinAgent in prose / a code span, not the header line (test_minagent_header_gate.py)",
"i18n": "an undefined marker key, a pleading English value, a shrinking/growing gap (v0.247.0)",
"go-parity": "a Go-side key REWORDED, a key citing text no base literal has, and a converted "
"key left out of the map (v0.252.0, R-557)",
"gofmt": "R-454: a planted unformatted .go file in internal/ is convicted; the clean tree passes",
"offbox-rename": "R-425: NAS branding in a NEW backups*.html, and in a bundle value an offbox Go file "
"names; control: the same token in the network-storage feature's copy is accepted",
}
fails = []
ran = 0
def gate(script):
p = subprocess.run([sys.executable, os.path.join("scripts", script)],
cwd=CTRL, capture_output=True, text=True)
return p.returncode, p.stdout + p.stderr
def in_subdir(name, script, content):
"""Plant a template one directory down and assert the gate still sees it."""
global ran
ran += 1
made = not os.path.isdir(SUB)
if made:
os.makedirs(SUB)
f = os.path.join(SUB, "decoy.html")
io.open(f, "w", encoding="utf-8").write(content)
try:
rc, out = gate(script)
finally:
os.remove(f)
if made and os.path.isdir(SUB) and not os.listdir(SUB):
os.rmdir(SUB)
if rc == 0:
fails.append("%s: a planted template in templates/partials/ PASSED — the gate's scope is a "
"directory listing, not the set of templates (R-421)\n%s" % (name, out[-400:]))
else:
print(" ok %-20s sees templates at any depth" % name)
def swapped(name, script, path, transform, expect="convict"):
global ran
ran += 1
b = io.open(path, encoding="utf-8").read()
try:
io.open(path, "w", encoding="utf-8").write(transform(b))
rc, out = gate(script)
finally:
io.open(path, "w", encoding="utf-8").write(b)
if (rc != 0) != (expect == "convict"):
fails.append("%s: rc=%d, expected %s\n%s" % (name, rc, expect, out[-400:]))
else:
print(" ok %-20s %s" % (name, "decoy rejected" if expect == "convict" else "genuine accepted"))
print("decoys — felhom-controller")
# --- SCOPE: the six listdir gates, each with content that actually triggers it -----------------
in_subdir("emoji", "emoji_gate.py", u"<p>Kesz \U0001F600</p>\n")
in_subdir("native-confirm", "native_confirm_gate.py",
u"<button onclick=\"confirm('biztos?')\">x</button>\n")
in_subdir("app-row-dedup", "app_row_dedup_gate.py", u'<div class="app-row ">hand-rolled</div>\n')
in_subdir("template-id", "template_id_gate.py",
u'<div id="realOne"></div>\n<script>document.getElementById("noSuchId").x=1;</script>\n')
in_subdir("secret-markup", "secret_in_markup_gate.py",
u'<input type="password" value="{{ .RetrievalPassword }}">\n')
in_subdir("retrieval-promise", "retrieval_promise_gate.py",
u"<p>A jelszavat barmikor visszaallithatja innen.</p>\n"
u"<p>Bovebben: visszaállítható a kóddal.</p>\n")
# --- CONTROL: two gates already walked. If these ever fail, the decoy is wrong, not the gate ----
in_subdir("mojibake (CONTROL)", "mojibake_gate.py", u"<p>árvíztuquotrő</p>\n")
# --- COMMENTS ARE NOT CODE (R-421) -------------------------------------------------------------
DISPATCH = os.path.join(CTRL, "internal", "web", "handler_debug.go")
DEBUG_TPL = os.path.join(CTRL, "internal", "web", "templates", "debug.html")
def _comment_out_a_real_case(src):
"""Take a LIVE dispatcher case and comment it out. The button stays; the handler dies."""
m = re.search(r'^(\s*)(case subpath == "[A-Za-z0-9/_-]+".*:)$', src, re.M)
assert m, "no dispatcher case found — the decoy cannot be built"
return src[:m.start()] + m.group(1) + "// " + m.group(2) + src[m.end():]
swapped("debug-routes/comment", "debug_route_gate.py", DISPATCH, _comment_out_a_real_case)
def _comment_out_the_partial(src):
return re.sub(r'(\{\{template "app_list_row".*?\}\})', r'<!-- was: \1 -->', src)
swapped("app-row-dedup/comment", "app_row_dedup_gate.py",
os.path.join(TPL, "dashboard.html"), _comment_out_the_partial)
# --- i18n (v0.247.0): copy moved OUT of the templates into the bundles. Two families of decoy: ---
# --- the new gate itself, and every copy gate that must still see copy that now lives there. ---
LOC = os.path.join(CTRL, "internal", "i18n", "locales")
EN_JSON, HU_JSON = os.path.join(LOC, "en.json"), os.path.join(LOC, "hu.json")
LAUNCHER = os.path.join(TPL, "launcher.html")
def _one(old, new):
def t(src):
assert src.count(old) == 1, "decoy anchor %r not found exactly once — the decoy cannot be built" % old
return src.replace(old, new)
return t
swapped("i18n/undefined-key", "i18n_missing_gate.py", LAUNCHER,
_one('{{T "launcher.link_masolasa"}}', '{{T "launcher.no_such_key"}}'))
swapped("i18n/pleading", "i18n_missing_gate.py", EN_JSON,
_one('"launcher.link_masolasa": "Copy link"', '"launcher.link_masolasa": "Please copy the link"'))
swapped("i18n/gap-grew", "i18n_missing_gate.py", EN_JSON,
_one(' "launcher.link_masolasa": "Copy link",\n', ''))
swapped("i18n/new-formal-form", "i18n_missing_gate.py", HU_JSON,
_one('"launcher.link_masolasa": "Link másolása"', '"launcher.link_masolasa": "Kattintson a link másolásához"'))
# Scope: the copy gates read the page AS RENDERED, so copy that lives in a bundle is still judged.
swapped("emoji/bundle", "emoji_gate.py", EN_JSON,
_one('"launcher.link_masolasa": "Copy link"', '"launcher.link_masolasa": "Copy link \U0001F600"'))
swapped("native-confirm/bundle", "native_confirm_gate.py", EN_JSON,
_one('"launcher.masolva": "Copied"', '"launcher.masolva": "Copied\u0027+confirm(\u0027x\u0027)+\u0027"'))
swapped("retrieval-promise/bundle", "retrieval_promise_gate.py", HU_JSON,
_one('"launcher.link_masolasa": "Link másolása"', '"launcher.link_masolasa": "A mentésed bármikor visszaállítható."'))
# Slice 1 (R-556): an English retrieval PROMISE is judged like a Hungarian one — and the same place
# carrying a sentence that promises nothing is accepted (the gate registers claims, not words).
swapped("retrieval-promise/en", "retrieval_promise_gate.py", EN_JSON,
_one('"launcher.link_masolasa": "Copy link"', '"launcher.link_masolasa": "Your old backups can be restored at any time."'))
swapped("retrieval-promise/en-ok", "retrieval_promise_gate.py", EN_JSON,
_one('"launcher.link_masolasa": "Copy link"', '"launcher.link_masolasa": "Your old backups are listed on the restore page."'),
expect="accept")
# R-564: the Hungarian SPLIT verb („állíthatók vissza") is the same claim as the joined stem; a planted
# split-verb promise must convict, and a plain „Vissza" (a back link, no claim) must not.
swapped("retrieval-promise/split-verb", "retrieval_promise_gate.py", HU_JSON,
_one('"launcher.link_masolasa": "Link másolása"', '"launcher.link_masolasa": "A régi mentéseid a kóddal bármikor állíthatók vissza."'))
swapped("retrieval-promise/split-ok", "retrieval_promise_gate.py", HU_JSON,
_one('"launcher.link_masolasa": "Link másolása"', '"launcher.link_masolasa": "Vissza a listához"'),
expect="accept")
swapped("secret-markup/bundle", "secret_in_markup_gate.py", EN_JSON,
_one('"launcher.link_masolasa": "Copy link"', '"launcher.link_masolasa": "Copy {{.RetrievalPassword}}"'))
# --- offbox-rename (R-425): the scope is discovered by pattern, and bundle copy is judged. ---------
ran += 1
_extra = os.path.join(TPL, "backups_offbox_extra.html")
io.open(_extra, "w", encoding="utf-8").write(u"<p>A NAS-mentés beállítása</p>\n")
try:
_rc, _out = gate("offbox_rename_gate.py")
finally:
os.remove(_extra)
if _rc == 0:
fails.append("offbox-rename/new-file: NAS branding in a NEW backups*.html PASSED — the scope is a "
"fixed list again (R-425)\n%s" % _out[-400:])
else:
print(" ok %-20s decoy rejected" % "offbox-rename/new-file")
swapped("offbox-rename/bundle", "offbox_rename_gate.py", HU_JSON,
_one('"flash.offbox.run_started": "', '"flash.offbox.run_started": "Mentés a NAS-ra: '))
swapped("offbox-rename/other-feature-ok", "offbox_rename_gate.py", HU_JSON,
_one('"storage_network.mit_kell_beallitani_a_nas": "Mit kell beállítani a NAS-on?"',
'"storage_network.mit_kell_beallitani_a_nas": "Mit kell beállítani a NAS-on? Ez a NAS-ra vonatkozik."'),
expect="accept")
# --- gofmt (R-454): an unformatted Go file anywhere under internal/ is convicted. ----------------
ran += 1
_gf = os.path.join(CTRL, "internal", "zz_gofmt_decoy_tmp.go")
io.open(_gf, "w", encoding="utf-8").write(u"package internal\nfunc decoy( ) { }\n")
try:
_rc, _out = gate("gofmt_gate.py")
finally:
os.remove(_gf)
if _rc != 1 or "zz_gofmt_decoy_tmp.go" not in _out:
fails.append("gofmt: an unformatted planted file was not convicted (rc=%d)\n%s" % (_rc, _out[-400:]))
else:
print(" ok %-20s decoy rejected" % "gofmt")
# --- go-parity (v0.252.0, R-557): a Go-side message key may only carry base-commit text. ---
# --- Three shapes, because the gate makes three different claims. ---
GO_KEYS = os.path.join(HERE, "i18n_go_keys.json")
_A_KEY = '"flash.share.enabled": "A megosztás bekapcsolva."'
_A_HU = '"flash.share.enabled": "A megosztás bekapcsolva."'
# 1. name-for-fact: the KEY is still listed and still named in Go, and its text was reworded by one
# word. A gate that only checked "is this key accounted for" passes this.
swapped("go-parity/reworded", "i18n_go_parity.py", HU_JSON,
_one(_A_HU, '"flash.share.enabled": "A megosztás most bekapcsolva."'))
# 2. constant-for-measurement: the key map cites text nobody ever wrote. A gate that compared
# hu.json against the MAP alone (rather than against the frozen capture) passes this.
swapped("go-parity/invented", "i18n_go_parity.py", GO_KEYS,
_one(_A_KEY, '"flash.share.enabled": "Ez a mondat sosem létezett."'))
# 3. declaration-for-reachability: a converted key is NAMED by Go and quietly dropped from the map.
# A gate that only walked the map passes this -- which is how a conversion escapes review.
swapped("go-parity/unlisted", "i18n_go_parity.py", GO_KEYS,
_one(_A_KEY + ",\n", ""))
# --- golden-notice: R-410's decoy, in the other direction. It is ADVISORY, so rc is never the ---
# --- question — what it COUNTED is. ---
ran += 1
EV = os.path.join(os.path.dirname(os.path.dirname(CTRL)), "felhom.eu", "documentation", "tests",
"golden-9.9.9-2026-01-01")
if os.path.isdir(os.path.dirname(EV)):
os.makedirs(EV)
try:
p = subprocess.run([sys.executable, os.path.join("scripts", "golden_notice.py"),
os.path.dirname(CTRL)], cwd=CTRL, capture_output=True, text=True)
out = p.stdout + p.stderr
finally:
os.rmdir(EV)
if "9.9.9" in out and "NOT counted" not in out:
fails.append("golden-notice: an EMPTY directory was counted as a bake (R-410 regressed)")
else:
print(" ok %-20s empty dir not counted as a bake" % "golden-notice")
else:
print(" -- %-20s SKIPPED: no felhom.eu sibling clone" % "golden-notice")
print()
if fails:
for f in fails:
print("FAIL: %s" % f)
sys.exit(1)
print("all %d controller decoys behaved — labels do not satisfy these gates" % ran)