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code-be-01 34c3744796 fix(fleet): resolve-then-validate symlink guard + framework helper resolution (#1380)
ci/woodpecker/pr/ci Pipeline was successful
M1 guard: secure-file's openFileBeneathRoot no longer refuses every
symlink component. The lexical path must still name the managed root;
symlinks are then resolved hop-by-hop, each hop validated (containment
under the root or a caller-sanctioned additional root such as the brain
home on split-home layouts, current-user ownership, no group/world-write
mode, bounded chain depth), and the O_NOFOLLOW descriptor traversal
walks the symlink-free real path — substitution races after resolution
still refuse. Framework-created layouts that now pass: the roster
symlink config->brain, and rebound-HOME config roots. Escaping,
foreign-owned, loose-mode, and over-deep targets still refuse.

M2 resolver: resolveFleetIdentity no longer hardcodes
<mosaicHome>/tools/tmux/agent-send.sh. The helper is probed across the
framework install homes (mosaicHome, MOSAIC_HOME, default config home),
so a brain-shaped mosaicHome (~/.mosaic, no tools tree) resolves the
helper from the framework config home.

M5a: error text no longer recommends the forbidden
'mosaic update --repair-tools' remedy; guidance names the actual
recovery shape.

Verification unblock: parseFleetRosterV1 tolerates the roster-v2
envelope the fleet's own mutation tooling writes (version 2, top-level
generation fence, defaults.runtime, agent model/reasoning and
lifecycle/launch sub-objects) — validated, opaque to comms semantics.
Without this the #1380 member-positive-control cannot pass on the live
roster.

Tests: resolve-then-validate arms (valid in-root symlink ancestor and
file, split-home sanctioned root, escaping refusal, group-writable
refusal, foreign-ownership refusal via the afterStat race hook, race
substitution arms unchanged green); resolver arms positional with nonce
and no-name controls per the #1380 protocol, helper-not-found names
every searched home; v2-envelope arms; reseed refusal diagnostics
updated. 405 fleet/reseed tests green; typecheck, lint, format clean.
Host-layout verification (read-only, local): 7/7 protocol arms green —
orch-01 member positive control through the roster symlink under both
homes, nonce/no-name controls, jarvis non-member names membership, and
the launcher resolver entry composes the contract.
2026-08-24 14:12:05 -05:00
code-be-01andorch-01 9014a510a9 ci(mosaic): repo-structure declaration CI gate (T51 WP5c) (#1378)
ci/woodpecker/push/publish Pipeline was successful
Co-authored-by: code-be-01 <[email protected]>
2026-08-24 04:43:26 +00:00
13 changed files with 1232 additions and 250 deletions
+34
View File
@@ -113,6 +113,40 @@ steps:
# stub supplies the scale instead of the host's own checkout.
- bash packages/mosaic/framework/tools/git/test-mosaic-worktree-large-repo.sh
# Canonical repo-structure declaration gate (T51 WP5c, spec §5.4 point 2):
# .mosaic/repo.json is the machine-readable structure SSOT consumed by git
# wrappers and the T32 gate seat; this is its repo-side CI enforcement.
# Path-conditional: runs when the declaration, the vendored validator, or this
# pipeline config changes (manual runs always include it). Fails the pipeline
# on any VALIDATION_ERROR and enforces the schema_version 2 authoring rule
# (--require-v2: edited/new declarations may not stay v1). The validator is
# vendored into the framework tree (spec §5.1 final home) — provenance in its
# header; the hostile-input suite (101 arms, hermetic) runs alongside so the
# gate's own instrument ships in the same commit as the gate.
structure-declaration:
image: *node_image
commands:
- apk add --no-cache bash git
# MOSAIC_HOST_ROOT is a runtime anchor (spec §1.2a: unset fails closed
# for managed validation). CI has no host, so the step provisions an
# EXPLICIT fixture root — honest configuration for the resolution path,
# never a guess about a real host; the per-host containment checks are
# runtime concerns and do not run against a fixture. Grammar, schema,
# refs, flow, remote normalization, and path grammar all prove here.
- mkdir -p /tmp/t51-ci-hostroot
- bash packages/mosaic/framework/tools/structure/validate-repo-json.sh .mosaic/repo.json --require-v2
- bash packages/mosaic/framework/tools/structure/test-validate-repo-json.sh
environment:
MOSAIC_HOST_ROOT: /tmp/t51-ci-hostroot
when:
- event: pull_request
path:
include:
- '.mosaic/repo.json'
- 'packages/mosaic/framework/tools/structure/**'
- '.woodpecker/ci.yml'
- event: manual
# Canonical verify:release stage `upgrade-guard`.
# Blocking gate (#791): a framework upgrade must never write or delete an
# operator-owned path. The HARD GATE proves an unanticipated operator sentinel
@@ -219,6 +219,23 @@ Multi-instance support: `-a <instance>` selects a named instance (e.g. `personal
~/.config/mosaic/tools/health/stack-health.sh -f json
```
### Repo Structure Declaration (T51)
```bash
# Validate a .mosaic/repo.json declaration (schema v1/v2, host:/ grammar,
# ref grammar, cross-field rules, remote normalization; spec §5)
~/.config/mosaic/tools/structure/validate-repo-json.sh <repo>/.mosaic/repo.json
# CI authoring rule: new/edited declarations must be schema_version 2
~/.config/mosaic/tools/structure/validate-repo-json.sh <repo>/.mosaic/repo.json --require-v2
# Display mode (warns and omits root-dependent checks when MOSAIC_HOST_ROOT unset)
~/.config/mosaic/tools/structure/validate-repo-json.sh <repo>/.mosaic/repo.json --mode display
# Hermetic hostile-input suite (101 arms)
~/.config/mosaic/tools/structure/test-validate-repo-json.sh
```
### Shared Credential Loader
```bash
@@ -379,54 +379,8 @@ check_fleet_transport() {
fi
}
check_structure_anchor_provisioning() {
# T51 WP0b (spec §1.2a + PHASE2-MAP F7): audit the two declaration anchors.
# Doctor runs from operator shells and CI where the launcher exports do not
# exist, so this is an AUDIT ONLY — it never exports, writes, or fabricates
# values for consumption. Four states (charter):
# both present+nonempty PASS (values reported as paths only)
# one missing/empty WARN naming the var + the launcher as authority
# neither present INFORMATIONAL launcher-equivalent derivation,
# explicitly non-authoritative, + launcher warning;
# never an error by design (F7(b))
# Severity follows the doctor's existing conventions: pass/note are quiet
# (note unless --verbose), warn counts toward --fail-on-warn.
local host_root="${MOSAIC_HOST_ROOT:-}" brain_home="${MOSAIC_BRAIN_HOME:-}"
# T51P2WP0BRW B1: presence is tracked SEPARATELY from value — `${VAR:-}`
# collapses exported-empty into genuinely-unset, which mis-filed both-empty
# and the mixed empty/unset states as informational. Only BOTH-genuinely-
# absent may be informational (charter state 3); any present-but-empty or
# single-present state warns.
local host_set=0 brain_set=0
[[ -v MOSAIC_HOST_ROOT ]] && host_set=1
[[ -v MOSAIC_BRAIN_HOME ]] && brain_set=1
if [[ "$host_set" -eq 1 && "$brain_set" -eq 1 && -n "$host_root" && -n "$brain_home" ]]; then
pass "Structure anchors provisioned: MOSAIC_HOST_ROOT=$host_root MOSAIC_BRAIN_HOME=$brain_home (paths reported only; not expanded, not consumed)"
return
fi
if [[ "$host_set" -eq 0 && "$brain_set" -eq 0 ]]; then
note "Structure anchors not provisioned in this environment. Launcher-equivalent derivation (INFORMATIONAL, NON-AUTHORITATIVE — seats receive the authoritative values from the launchers): MOSAIC_HOST_ROOT would default to the operator home; MOSAIC_BRAIN_HOME would default to the brain tree resolved at launch. Doctor does not guess values for consumption; it audits provisioning."
note "Provision both anchors via the seat launchers (launch-seat.sh / launch-seat-claude.sh export them; see T51 spec §1.2a)."
return
fi
# At least one variable is present (possibly empty), or exactly one exists:
# every missing/empty anchor gets its own loud WARN naming the launchers.
if [[ "$host_set" -eq 0 ]]; then
warn "MOSAIC_HOST_ROOT is not set in this environment while MOSAIC_BRAIN_HOME is — declaration consumers fail closed without it (spec §1.2a). The seat launchers are the authoritative source."
elif [[ -z "$host_root" ]]; then
warn "MOSAIC_HOST_ROOT is present but EMPTY in this environment — declaration consumers fail closed without a usable value (spec §1.2a). The seat launchers are the authoritative source."
fi
if [[ "$brain_set" -eq 0 ]]; then
warn "MOSAIC_BRAIN_HOME is not set in this environment while MOSAIC_HOST_ROOT is — the projects/ mirror and brain declaration resolve from it (spec §1.2a). The seat launchers are the authoritative source."
elif [[ -z "$brain_home" ]]; then
warn "MOSAIC_BRAIN_HOME is present but EMPTY in this environment — the projects/ mirror and brain declaration resolve from it (spec §1.2a). The seat launchers are the authoritative source."
fi
}
check_fleet_transport
check_structure_anchor_provisioning
check_brain_home
# Legacy migration surfaces should no longer contain symlink trees.
@@ -1,131 +0,0 @@
#!/usr/bin/env bash
# Covers the structure-anchor provisioning check in `mosaic-doctor` (T51 WP0b).
#
# Same discipline as test-brain-home-check.sh: functions are extracted from the
# shipped script (exact header + closing brace), never copied — a test carrying
# its own copy of the logic keeps passing after the shipped copy changes.
#
# Four contract states (charter T51P2WP0B-20260824):
# 1. both present+nonempty -> pass ([OK]), no warns, no notes
# 2a. host missing, brain set -> warn naming MOSAIC_HOST_ROOT + launchers
# 2b. brain missing, host set -> warn naming MOSAIC_BRAIN_HOME + launchers
# 2c. present-but-EMPTY counts as missing (warns; NEVER informational)
# 3. neither present -> informational notes, NON-AUTHORITATIVE, never warn
# Arms include genuinely-UNSET (env -u) forms, not only empty strings.
# Red control: empty-vs-unset distinction removed in a mutated copy -> suite red.
set -euo pipefail
SCRIPT_DIR=$(cd -- "$(dirname "$0")" && pwd)
DOCTOR="$SCRIPT_DIR/mosaic-doctor"
fail() {
echo "FAIL: $*" >&2
exit 1
}
[ -f "$DOCTOR" ] || fail "missing mosaic-doctor at $DOCTOR"
extract_function() {
local name="$1"
local extracted
extracted=$(sed -n "/^${name}() {/,/^}/p" "$DOCTOR")
[ -n "$extracted" ] || fail "could not extract ${name}() from mosaic-doctor — script reshaped?"
printf '%s\n' "$extracted"
}
for fn in check_structure_anchor_provisioning; do
extract_function "$fn" >/dev/null
done
# run_case LABEL EXPECT(ok|warn|note) [env assignments as args; -u VAR tokens for unset]
run_case() {
local label="$1" expect="$2"
shift 2
local envs=() unsets=()
local a
for a in "$@"; do
case "$a" in
-u:*) unsets+=("${a#-u:}") ;;
*) envs+=("$a") ;;
esac
done
local out warns notes oks
# build the env command with proper -u flags (array expansion must not
# glue '-u VAR' into one word)
local cmd=(env)
local e u
# env(1) parses options only before the first assignment — -u flags FIRST
for u in "${unsets[@]:-}"; do [ -n "$u" ] && cmd+=(-u "$u"); done
for e in "${envs[@]:-}"; do [ -n "$e" ] && cmd+=("$e"); done
cmd+=(bash -c "warn() { echo \"[WARN] \$*\"; }; note() { echo \"[NOTE] \$*\"; return 0; }; pass() { echo \"[OK] \$*\"; return 0; }; $(extract_function check_structure_anchor_provisioning); check_structure_anchor_provisioning")
out=$("${cmd[@]}" 2>&1)
warns=$(printf '%s\n' "$out" | grep -c '^\[WARN\]' || true)
notes=$(printf '%s\n' "$out" | grep -c '^\[NOTE\]' || true)
oks=$(printf '%s\n' "$out" | grep -c '^\[OK\]' || true)
if [[ "$expect" == ok && "$oks" -gt 0 && "$warns" -eq 0 && "$notes" -eq 0 ]]; then
echo "ok - $label"
elif [[ "$expect" == warn && "$warns" -ge 1 && "$notes" -eq 0 ]]; then
echo "ok - $label (warned x$warns)"
elif [[ "$expect" == note && "$notes" -gt 0 && "$warns" -eq 0 ]]; then
echo "ok - $label (noted)"
else
echo "output: $out" >&2
fail "$label: expected $expect (oks=$oks warns=$warns notes=$notes)"
fi
}
ROOT=$(mktemp -d)
trap 'rm -rf "$ROOT"' EXIT
HOST="$ROOT/host"
BRAIN="$ROOT/brain"
# ── state 1: both present + nonempty → pass ────────────────────────────────
run_case "both anchors present passes" ok \
MOSAIC_HOST_ROOT="$HOST" MOSAIC_BRAIN_HOME="$BRAIN"
# ── state 2a: host missing (unset), brain set → exactly one warn ───────────
run_case "unset host root warns" warn \
-u:MOSAIC_HOST_ROOT MOSAIC_BRAIN_HOME="$BRAIN"
# ── state 2b: brain missing (unset), host set → exactly one warn ───────────
run_case "unset brain home warns" warn \
MOSAIC_HOST_ROOT="$HOST" -u:MOSAIC_BRAIN_HOME
# ── state 2c-empty: present-but-empty counts as missing ────────────────────
run_case "empty-string host root warns (empty != set)" warn \
MOSAIC_HOST_ROOT= MOSAIC_BRAIN_HOME="$BRAIN"
run_case "empty-string brain home warns (empty != set)" warn \
MOSAIC_HOST_ROOT="$HOST" MOSAIC_BRAIN_HOME=
# ── state 3: neither present (genuinely unset) → notes, never warn ─────────
run_case "both unset yields non-authoritative notes" note \
-u:MOSAIC_HOST_ROOT -u:MOSAIC_BRAIN_HOME
run_case "both empty-string warns (empty is present, not absent)" warn \
MOSAIC_HOST_ROOT= MOSAIC_BRAIN_HOME=
run_case "host empty + brain unset warns" warn \
MOSAIC_HOST_ROOT= -u:MOSAIC_BRAIN_HOME
run_case "host unset + brain empty warns" warn \
-u:MOSAIC_HOST_ROOT MOSAIC_BRAIN_HOME=
# ── red control (mutation): presence tracking removed → red ────────────────
# Mutant regresses to the reviewed defect shape: presence derived from
# NONEMPTINESS (the `${VAR:-}` collapse) instead of true -v tracking. Both-empty
# then looks genuinely-absent and is mis-filed as informational; the both-empty
# warn arm above finds no WARN and the suite reds.
MUT="$ROOT/mosaic-doctor.mutant"
sed 's/\[\[ -v MOSAIC_HOST_ROOT \]\] \&\& host_set=1/[[ -n "${MOSAIC_HOST_ROOT:-}" ]] \&\& host_set=1/; s/\[\[ -v MOSAIC_BRAIN_HOME \]\] \&\& brain_set=1/[[ -n "${MOSAIC_BRAIN_HOME:-}" ]] \&\& brain_set=1/' \
"$DOCTOR" > "$MUT"
if cmp -s "$DOCTOR" "$MUT"; then
echo "SKIP red control (mutation anchor not found — sed pattern drifted)" >&2
else
mut_fn=$(sed -n "/^check_structure_anchor_provisioning() {/,/^}/p" "$MUT")
outm=$(env MOSAIC_HOST_ROOT= MOSAIC_BRAIN_HOME= bash -c \
"warn() { echo \"[WARN] \$*\"; }; note() { echo \"[NOTE] \$*\"; return 0; }; pass() { echo \"[OK] \$*\"; return 0; }; $mut_fn; check_structure_anchor_provisioning" 2>&1)
if printf '%s\n' "$outm" | grep -q '^\[NOTE\]'; then
echo "ok - red control bites (mutant collapses empty into informational; shipped does not)"
else
fail "red control did not reproduce the regression shape (mutant output unexpected)"
fi
fi
echo "structure anchor doctor check: all arms passed"
@@ -0,0 +1,289 @@
#!/usr/bin/env bash
# test-validate-repo-json.sh — hostile-input suite for the T51 declaration validator.
# (Vendored with validate-repo-json.sh from mosaic-brain @ 515bcbab — see the
# validator header for provenance.)
#
# Hermetic: all fixtures in a tracked mktemp sandbox removed by an EXIT trap
# (pass and fail paths both — zero residue). No network, no real repos, no host
# state mutated. MOSAIC_HOST_ROOT is set/unset per arm via env only.
#
# T51P2RW1: arms extended per review T51P2R1 (F1-F5): root gate for ordinary
# v2 declarations (unset AND explicitly empty; display warns), git-grammar
# branch arms (double slash, dot component, control byte), contract-escape
# arms (list enums, invalid UTF-8, NaN — one VALIDATION_ERROR line, never a
# traceback), remote normalization (.git/ ordering, port preservation), and
# mirror-component fullmatch arms (trailing newline, control bytes).
set -u
HERE=$(cd "$(dirname "$0")" && pwd)
V="$HERE/validate-repo-json.sh"
PASS=0; FAIL=0; FAILED=""
ok() { PASS=$((PASS+1)); }
bad() { FAIL=$((FAIL+1)); FAILED="$FAILED $1"; printf 'FAIL: %s\n' "$1" >&2; }
SB=$(mktemp -d "${TMPDIR:-/tmp}/vrj-test.XXXXXX")
trap 'rm -rf "$SB"' EXIT
fx() { printf '%s' "$2" > "$SB/$1"; }
run() { # [env KV=V ...] -- args...
local envs=()
while [ "$1" != "--" ]; do envs+=("$1"); shift; done; shift
OUT=$(env "${envs[@]:-_=_}" bash "$V" "$@" 2>&1 < /dev/null; echo "__RC__$?")
RC=${OUT##*__RC__}; OUT=${OUT%__RC__*}; OUT=${OUT%$'\n'}
}
expect_ok() { local d="$1"; shift; run "$@"; if [ "$RC" = 0 ] && printf '%s' "$OUT" | grep -q '^OK'; then ok; else bad "$d (rc=$RC out=$(printf '%s' "$OUT" | head -1))"; fi; }
expect_err() { # desc expected-substring [env... -- args...]
local d="$1" sub="$2"; shift 2
run "$@"
if [ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "VALIDATION_ERROR.*$sub"; then ok
else bad "$d (rc=$RC, wanted error ~$sub, got: ${OUT%%$'\n'*})"; fi
}
expect_err_notrace() { # like expect_err, plus no traceback anywhere in output
local d="$1" sub="$2"; shift 2
run "$@"
if [ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "VALIDATION_ERROR.*$sub" && ! printf '%s' "$OUT" | grep -q "Traceback"; then ok
else bad "$d (rc=$RC, wanted clean error ~$sub, got: ${OUT%%$'\n'*})"; fi
}
STACK='{"schema_version":2,"integration_trunk":"next","release_branch":"main","flow":"trunk-release","canonical_remote":"https://git.mosaicstack.dev/mosaicstack/stack","canonical_clone":"host:/src/mosaic-stack","worktree_root":"host:/src/mosaic-stack-worktrees","worktree_policy":"orchestrator-precreated","notes":"x"}'
BRAIN='{"schema_version":2,"integration_trunk":"main","release_branch":"main","flow":"direct","canonical_remote":"https://git.example.invalid/acme/brain","canonical_clone":"host:/.mosaic","worktree_root":"host:/.mosaic-worktrees","worktree_policy":"orchestrator-precreated"}'
ROOT="$SB/hostroot"; mkdir -p "$ROOT"
echo "== (0) syntax + version =="
bash -n "$V" && ok || bad "bash -n"
run -- --version; [ "$RC" = 0 ] && case "$OUT" in validate-repo-json\ *) ok ;; *) bad "version output" ;; esac || bad "version rc"
echo "== (1) spec examples: stack + brain OK (root set) =="
fx stack.json "$STACK"; fx brain.json "$BRAIN"
expect_ok a1 MOSAIC_HOST_ROOT=$ROOT -- "$SB/stack.json"
expect_ok a2 MOSAIC_HOST_ROOT=$ROOT -- "$SB/brain.json"
echo "== (2) malformed JSON (stable contract, no traceback) =="
fx bad.json '{"schema_version": 2, '
expect_err_notrace b1 "json:" -- "$SB/bad.json"
fx arr.json '[1,2]'
expect_err_notrace b2 "top level" -- "$SB/arr.json"
printf '\xff\xfe{"schema_version":2}' > "$SB/utf8.json"
expect_err_notrace b3 "UTF-8" MOSAIC_HOST_ROOT=$ROOT -- "$SB/utf8.json"
fx nan.json '{"schema_version":NaN}'
expect_err_notrace b4 "malformed JSON" MOSAIC_HOST_ROOT=$ROOT -- "$SB/nan.json"
echo "== (3) unknown schema_version = ABSENT-loud =="
fx v3.json "${STACK/schema_version\":2/schema_version\":3}"
expect_err c1 "schema_version" MOSAIC_HOST_ROOT=$ROOT -- "$SB/v3.json"
echo "== (4) v1 mode + authoring rule (v1 consumes no paths: no root needed) =="
fx v1.json '{"integration_trunk":"next","release_branch":"main"}'
expect_ok d1 -- "$SB/v1.json"
expect_err d2 "schema_version" -- --require-v2 "$SB/v1.json"
fx v1x.json '{"integration_trunk":"next","release_branch":"main","notes":"no"}'
expect_err d3 "x_extensions" -- "$SB/v1x.json"
echo "== (5) unknown top-level key rejected; x_extensions home OK =="
fx unk.json "${STACK%\}*},\"typo_key\":1}"
expect_err e1 "typo_key" MOSAIC_HOST_ROOT=$ROOT -- "$SB/unk.json"
fx ext.json "${STACK%\}*},\"x_extensions\":{\"future\":true}}"
expect_ok e2 MOSAIC_HOST_ROOT=$ROOT -- "$SB/ext.json"
echo "== (6) flow: required (no defaulting) + cross-field =="
fx noflow.json "$(printf '%s' "$STACK" | python3 -c 'import json,sys; d=json.load(sys.stdin); del d["flow"]; print(json.dumps(d))')"
expect_err f1 "flow" MOSAIC_HOST_ROOT=$ROOT -- "$SB/noflow.json"
fx xdirect.json "${STACK/\"trunk-release\"/\"direct\"}"
expect_err f2 "direct" MOSAIC_HOST_ROOT=$ROOT -- "$SB/xdirect.json"
fx xtr.json "${BRAIN/\"direct\"/\"trunk-release\"}"
expect_err f3 "trunk-release" MOSAIC_HOST_ROOT=$ROOT -- "$SB/xtr.json"
echo "== (7) dot-segment / empty-segment / tilde escapes =="
fx dots.json "${STACK/host:\/src\/mosaic-stack\"/host:/src/../secrets\"}"
expect_err g1 "dot segment" MOSAIC_HOST_ROOT=$ROOT -- "$SB/dots.json"
fx dot1.json "${STACK/host:\/src\/mosaic-stack\"/host:/src/./mosaic-stack\"}"
expect_err g2 "dot segment" MOSAIC_HOST_ROOT=$ROOT -- "$SB/dot1.json"
fx empty.json "${STACK/host:\/src\/mosaic-stack\"/host://src/mosaic-stack\"}"
expect_err g3 "empty segment" MOSAIC_HOST_ROOT=$ROOT -- "$SB/empty.json"
fx tild.json "${STACK/host:\/src\/mosaic-stack\"/~jw/src/mosaic-stack\"}"
expect_err g4 "tilde" MOSAIC_HOST_ROOT=$ROOT -- "$SB/tild.json"
fx tailslash.json "${STACK/host:\/src\/mosaic-stack\"/host:/src/mosaic-stack/\"}"
expect_err g5 "empty segment" MOSAIC_HOST_ROOT=$ROOT -- "$SB/tailslash.json"
fx noanchor.json "${STACK/host:\/src\/mosaic-stack\"//src/mosaic-stack\"}"
expect_err g6 "host:/" MOSAIC_HOST_ROOT=$ROOT -- "$SB/noanchor.json"
echo "== (8) branch-name grammar (delegated to git check-ref-format, F2) =="
fx badbr.json "${STACK/\"next\"/\"bad..name\"}"
expect_err h1 "branch name" MOSAIC_HOST_ROOT=$ROOT -- "$SB/badbr.json"
fx sp.json "${STACK/\"next\"/\"fea ture\"}"
expect_err h2 "branch name" MOSAIC_HOST_ROOT=$ROOT -- "$SB/sp.json"
fx lock.json "${STACK/\"next\"/\"feature/x.lock\"}"
expect_err h3 "branch name" MOSAIC_HOST_ROOT=$ROOT -- "$SB/lock.json"
fx slash.json "${STACK/\"next\"/\"feature/x\"}"
expect_ok h4 MOSAIC_HOST_ROOT=$ROOT -- "$SB/slash.json"
fx dslash.json "${STACK/\"next\"/\"feature//x\"}"
expect_err h5 "branch name" MOSAIC_HOST_ROOT=$ROOT -- "$SB/dslash.json"
fx hidden.json "${STACK/\"next\"/\"feature/.hidden\"}"
expect_err h6 "branch name" MOSAIC_HOST_ROOT=$ROOT -- "$SB/hidden.json"
fx ctrl.json "$(printf '%s' "$STACK" | python3 -c 'import json,sys; d=json.load(sys.stdin); d["integration_trunk"]="feature/\x01x"; print(json.dumps(d))')"
expect_err h7 "branch name" MOSAIC_HOST_ROOT=$ROOT -- "$SB/ctrl.json"
echo "== (8b) reflog shorthand rejected independent of ambient checkout history (B1) =="
# Hermetic repo WITH checkout history: proves '@{-1}' (which git would expand to
# 'main' from THIS repo's reflog) is still refused by the pre-delegation gate.
HISTREPO="$SB/histrepo"; mkdir -p "$HISTREPO"
(cd "$HISTREPO" && git init -q -b main . \
&& git -c user.name=t -c user.email=t@t commit -q --allow-empty -m m \
&& git checkout -q -b feature/x \
&& git checkout -q main \
&& git check-ref-format --branch "@{-1}" >/dev/null 2>&1 && echo "ambient-expandable" || echo "not-expandable") \
| grep -q ambient-expandable && ok || bad "fixture repo failed to make @{-1} expandable"
fx atminus1.json "$(printf '%s' "$STACK" | python3 -c 'import json,sys; d=json.load(sys.stdin); d["integration_trunk"]="@{-1}"; print(json.dumps(d))')"
# Run the validator from INSIDE the history repo via command substitution so the
# assertion runs in the PARENT shell (T51P2R3 B1: the previous ( subshell ) form
# mutated ok/bad counters only in a dead subshell — FAIL printed, suite rc 0).
OUTX=$(cd "$HISTREPO" && MOSAIC_HOST_ROOT=$ROOT bash "$V" "$SB/atminus1.json" 2>&1 </dev/null; echo "__RC__$?")
RCX=${OUTX##*__RC__}
if [ "$RCX" = 1 ] && printf '%s' "$OUTX" | grep -q "VALIDATION_ERROR.*@{"; then ok
else bad "@{-1} must be rejected inside a repo with checkout history (got rc=$RCX)"; fi
fx atbrace.json "$(printf '%s' "$STACK" | python3 -c 'import json,sys; d=json.load(sys.stdin); d["integration_trunk"]="@{u}"; print(json.dumps(d))')"
expect_err h9 "@{" MOSAIC_HOST_ROOT=$ROOT -- "$SB/atbrace.json"
echo "== (9) canonical_remote: userinfo, list-type, normalization (F3/F4) =="
fx user.json "${STACK/https:\/\/git.mosaicstack.dev/https:\/\/bot:s3cret@git.mosaicstack.dev}"
expect_err_notrace i1 "userinfo" MOSAIC_HOST_ROOT=$ROOT -- "$SB/user.json"
fx listflow.json "${STACK/\"trunk-release\"/[\"trunk-release\"]}"
expect_err_notrace i2 "flow" MOSAIC_HOST_ROOT=$ROOT -- "$SB/listflow.json"
fx listpol.json "${STACK/\"orchestrator-precreated\"/[\"tool-managed\"]}"
expect_err_notrace i3 "worktree_policy" MOSAIC_HOST_ROOT=$ROOT -- "$SB/listpol.json"
run -- --normalize-remote "HTTPS://Git.Example.Invalid/o/r.git"
[ "$RC" = 0 ] && [ "$OUT" = "https://git.example.invalid/o/r" ] && ok || bad "norm .git/case ($OUT)"
run -- --normalize-remote "https://git.mosaicstack.dev/mosaicstack/stack/"
[ "$RC" = 0 ] && [ "$OUT" = "https://git.mosaicstack.dev/mosaicstack/stack" ] && ok || bad "norm trailing slash ($OUT)"
run -- --normalize-remote "git.mosaicstack.dev/mosaicstack/stack"
[ "$RC" = 1 ] && ok || bad "schemeless must fail"
run -- --normalize-remote "HTTPS://Git.Example.Invalid/o/r.git/"
[ "$RC" = 0 ] && [ "$OUT" = "https://git.example.invalid/o/r" ] && ok || bad "norm .git-then-slash ($OUT)"
run -- --normalize-remote "https://Git.Example.Invalid:8443/o/r.git"
[ "$RC" = 0 ] && [ "$OUT" = "https://git.example.invalid:8443/o/r" ] && ok || bad "port must be preserved ($OUT)"
run -- --normalize-remote "https://[2001:db8::1]:8443/o/r.git"
[ "$RC" = 0 ] && [ "$OUT" = "https://[2001:db8::1]:8443/o/r" ] && ok || bad "IPv6 must stay bracketed with port ($OUT)"
run -- --normalize-remote "https://[2001:db8::1]/o/r.git"
[ "$RC" = 0 ] && [ "$OUT" = "https://[2001:db8::1]/o/r" ] && ok || bad "IPv6 must stay bracketed ($OUT)"
run -- --normalize-remote "https://Git.Example.Invalid:0/o/r.git"
[ "$RC" = 0 ] && [ "$OUT" = "https://git.example.invalid:0/o/r" ] && ok || bad "explicit port 0 must be preserved ($OUT)"
run -- --normalize-remote "https://[::1].evil.example/o/r.git"
[ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "canonical_remote" && ok || bad "suffix after ] must be rejected (.evil.example)"
run -- --normalize-remote "https://[::1]x:8443/o/r.git"
[ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "canonical_remote" && ok || bad "suffix after ] must be rejected (x:8443)"
run -- --normalize-remote "https://[::1]x/o/r.git"
[ "$RC" = 1 ] && ok || bad "suffix after ] must be rejected (x)"
echo "== (9b) IPvFuture bracketed authorities (R4-B1: guard keys off raw netloc) =="
run -- --normalize-remote "https://[v1.fe80]/o/r.git"
[ "$RC" = 0 ] && [ "$OUT" = "https://[v1.fe80]/o/r" ] && ok || bad "valid IPvFuture must keep brackets ($OUT)"
run -- --normalize-remote "https://[vF.foo]:8443/o/r.git"
[ "$RC" = 0 ] && [ "$OUT" = "https://[vf.foo]:8443/o/r" ] && ok || bad "valid IPvFuture+port must keep brackets ($OUT)"
run -- --normalize-remote "https://[v1.fe80]evil/o/r.git"
[ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "canonical_remote" && ok || bad "IPvFuture suffix must be rejected (evil)"
run -- --normalize-remote "https://[v1.fe80].evil.example/o/r.git"
[ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "canonical_remote" && ok || bad "IPvFuture suffix must be rejected (.evil.example)"
run -- --normalize-remote "https://[vF.foo]x:8443/o/r.git"
[ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "canonical_remote" && ok || bad "IPvFuture suffix must be rejected (x:8443)"
echo "== (9d) non-bracketed authority grammar (R6-B1) =="
for U in "https://:8443/o/r.git" "https://bad host/o/r.git" "https://bad^host/o/r.git" "https://bad\\host/o/r.git" "https://bad%zz/o/r.git" "https://bad%2/o/r.git" "https://bad%/o/r.git"; do
run -- --normalize-remote "$U"
if [ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "VALIDATION_ERROR canonical_remote"; then ok
else bad "non-bracketed authority must be rejected: $U (rc=$RC out=$OUT)"; fi
done
run -- --normalize-remote "https://git.mosaicstack.dev:9000/mosaicstack/stack"
[ "$RC" = 0 ] && [ "$OUT" = "https://git.mosaicstack.dev:9000/mosaicstack/stack" ] && ok || bad "valid host:port unchanged ($OUT)"
run -- --normalize-remote "https://192.168.1.10:8443/o/r.git"
[ "$RC" = 0 ] && [ "$OUT" = "https://192.168.1.10:8443/o/r" ] && ok || bad "IPv4 reg-name stays valid ($OUT)"
run -- --normalize-remote "https://bad%2Fx/o/r.git"
[ "$RC" = 0 ] && [ "$OUT" = "https://bad%2fx/o/r" ] && ok || bad "complete %HH must stay legal, case-normalized ($OUT)"
echo "== (9e) ASCII-only authority bytes (R7-B1) =="
# isolated port arm (R8): VALID ASCII host + full-width-digit port ONLY —
# unconfounded, so restoring Unicode-aware isdigit() goes red right here.
run -- --normalize-remote "https://git.example.invalid:443/o/r.git"
if [ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "ASCII digits only"; then ok
else bad "full-width-digit port on a VALID host must be rejected with the port reason (rc=$RC out=$OUT)"; fi
for U in "https://éxample.invalid/o/r.git" "https://例え.テスト/o/r.git" "https://fullwidth.invalid/o/r.git" "https://mosaicstack.dev:443/o/r.git"; do
run -- --normalize-remote "$U"
if [ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "VALIDATION_ERROR canonical_remote"; then ok
else bad "non-ASCII authority must be rejected: $U (rc=$RC out=$OUT)"; fi
done
run -- --normalize-remote "https://xn--xample-9ua.invalid/o/r.git"
[ "$RC" = 0 ] && [ "$OUT" = "https://xn--xample-9ua.invalid/o/r" ] && ok || bad "punycode xn-- host must stay legal ($OUT)"
echo "== (9c) bracket-payload grammar + raw control bytes (R5-B1) =="
for P in "v1. " "v1.a b" "v1.a^b" "v1.a\\b" "v1.%20" "not-an-ip" "::gg::1"; do
run -- --normalize-remote "https://[$P]/o/r.git"
if [ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "VALIDATION_ERROR canonical_remote"; then ok
else bad "bracket payload [$P] must be rejected (rc=$RC out=$OUT)"; fi
done
for CB in $'\t' $'\n' $'\r'; do
run -- --normalize-remote "https://[v1.a${CB}b]/o/r.git"
if [ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "control byte"; then ok
else bad "raw control byte must be rejected before urlsplit (rc=$RC out=$OUT)"; fi
done
run -- --normalize-remote "https://[v1.fe80%zone]/o/r.git"
[ "$RC" = 1 ] && ok || bad "percent (not in RFC host grammar) must be rejected ($OUT)"
run -- --normalize-remote "https://[fe80::1%eth0]/o/r.git"
[ "$RC" = 1 ] && printf '%s' "$OUT" | grep -q "canonical_remote" && ok || bad "IPv6 zone-id (not RFC host grammar) must be rejected ($OUT)"
echo "== (10) root gate: every v2 managed validation fails closed (F1) =="
# NOTE (spec §4.5): host:/ paths resolve UNDER MOSAIC_HOST_ROOT by construction,
# so tool-managed is not declarable today — the cross-check fails for every
# host:/ root until the anchor scheme grows an outside-root form (J3 era).
expect_err j1 "MOSAIC_HOST_ROOT" MOSAIC_HOST_ROOT= -- "$SB/stack.json"
expect_err j2 "MOSAIC_HOST_ROOT" MOSAIC_HOST_ROOT= -- "$SB/brain.json"
expect_err j3 "MOSAIC_HOST_ROOT" MOSAIC_HOST_ROOT= -- "$SB/stack.json"
# rider (T51P2R2): genuine ABSENCE, not just explicitly empty — captured via
# command substitution, asserted in the parent shell (no subshell-counter shape).
OUTU=$(cd "$SB" && env -u MOSAIC_HOST_ROOT bash "$V" "$SB/stack.json" 2>&1 </dev/null; echo "__RC__$?")
RCU=${OUTU##*__RC__}
if [ "$RCU" = 1 ] && printf '%s' "$OUTU" | grep -q "VALIDATION_ERROR.*MOSAIC_HOST_ROOT"; then ok
else bad "unset-by-absence root must fail closed in managed mode (rc=$RCU)"; fi
run MOSAIC_HOST_ROOT= -- --mode display "$SB/stack.json"
if [ "$RC" = 0 ] && printf '%s' "$OUT" | grep -q '^OK' && printf '%s' "$OUT" | grep -q "host root unset"; then ok
else bad "display-mode unset must pass with the specified warning (rc=$RC)"; fi
run MOSAIC_HOST_ROOT= -- --mode display "$SB/brain.json"
if [ "$RC" = 0 ] && printf '%s' "$OUT" | grep -q "host root unset"; then ok
else bad "display-mode warn missing for brain fixture"; fi
TM='{"schema_version":2,"integration_trunk":"next","release_branch":"main","flow":"trunk-release","canonical_remote":"https://git.mosaicstack.dev/mosaicstack/stack","canonical_clone":"host:/src/mosaic-stack","worktree_root":"host:/src/mosaic-stack-worktrees","worktree_policy":"tool-managed"}'
fx tm.json "$TM"; mkdir -p "$ROOT/src"
expect_err j4 "inside MOSAIC_HOST_ROOT" MOSAIC_HOST_ROOT=$ROOT -- "$SB/tm.json"
fx tm_noroot.json "$(printf '%s' "$TM" | python3 -c 'import json,sys; d=json.load(sys.stdin); del d["worktree_root"]; print(json.dumps(d))')"
expect_err j5 "worktree_root" MOSAIC_HOST_ROOT=$ROOT -- "$SB/tm_noroot.json"
echo "== (10b) symlink escape cannot fake outside-ness (B3 fix: lexical containment) =="
OUTSIDE="$SB/outside-target"; mkdir -p "$OUTSIDE"
ln -s "$OUTSIDE" "$ROOT/escape"
TM_ESC="${TM/host:\/src\/mosaic-stack-worktrees/host:/escape/worktrees}"
fx tmsym.json "$TM_ESC"
expect_err j6 "inside MOSAIC_HOST_ROOT" MOSAIC_HOST_ROOT=$ROOT -- "$SB/tmsym.json"
echo "== (11) mirror-path components: collision/delimiter/control fixtures (F5) =="
run -- --mirror-path git.mosaicstack.dev mosaicstack stack
[ "$RC" = 0 ] && [ "$OUT" = "projects/git.mosaicstack.dev/mosaicstack/stack/repo.json" ] && ok || bad "mirror path ok ($OUT)"
expect_err k1 "mirror-component" -- --mirror-path "git.mosaicstack.dev" "a__b" "c"
expect_err k2 "mirror-component" -- --mirror-path "git.mosaicstack.dev" "a" "b__c"
expect_err k3 "mirror-component" -- --mirror-path "git.mosaicstack.dev/x" "a" "b"
expect_err k4 "mirror-component" -- --mirror-path "git.mosaicstack.dev" "A" "B"
expect_err k5 "mirror-component" -- --mirror-path "git.mosaicstack.dev" "" "stack"
run -- --mirror-path git.mosaicstack.dev a b.c
[ "$RC" = 0 ] && [ "$OUT" = "projects/git.mosaicstack.dev/a/b.c/repo.json" ] && ok || bad "distinct path ($OUT)"
run -- --mirror-path $'git.example.invalid\n' owner repo
[ "$RC" = 1 ] && ok || bad "trailing-newline host must be rejected (fullmatch)"
run -- --mirror-path $'git.\texample' owner repo
[ "$RC" = 1 ] && ok || bad "control-byte host must be rejected"
echo "== (12) missing required keys =="
for key in release_branch canonical_clone; do
fx miss.json "$(printf '%s' "$STACK" | python3 -c "import json,sys; d=json.load(sys.stdin); del d['$key']; print(json.dumps(d))")"
expect_err "l-$key" "$key" MOSAIC_HOST_ROOT=$ROOT -- "$SB/miss.json"
done
echo "== (13) absent file =="
expect_err m1 "file" -- "$SB/nonexistent.json"
echo
echo "pass=$PASS fail=$FAIL"
if [ "$FAIL" -gt 0 ]; then echo "FAILED:$FAILED"; exit 1; fi
echo "ALL GREEN"
@@ -0,0 +1,386 @@
#!/usr/bin/env bash
# validate-repo-json.sh — declaration validator for T51 repo structure declarations.
#
# Spec of record: docs/plans/2026-08-23_repo-structure-declaration.md @ 1896adc1
# (R3). Implements the spec's validation surface: schema v1/v2 (§1.2), host:/
# path grammar with canonical segment normalization — empty/./.. rejected
# BEFORE resolution — and tilde rejection (§1.2a), mirror path component
# validation (§3.1), cross-field rules (§5.2), remote normalization (§5.3).
#
# PROVENANCE (T51 WP5c vendoring): ported verbatim from the mosaic-brain tree —
# tools/repo-structure-decl/validate-repo-json.sh @ brain main merge 515bcbab
# (PR 28, wave-1 R9 PASS, 101-arm suite green). This file is now the framework
# home per spec §5.1 ("shipped in the framework package"); the brain copy is the
# development origin. Re-sync rule: changes land here via reviewed PR and are
# back-ported to the brain tree (or the brain copy retires) — never fork silently.
# Validator version at port: 1.1.0+t51spec-r3+t51p2rw1 (R2-R8 rework included).
# No operator literal appears in this file; the host root is read from
# MOSAIC_HOST_ROOT configuration only.
#
# Unset-root semantics (spec §1.2a, fail-closed; T51P2R1 F1): v2 declarations
# always consume a path (canonical_clone is required), so in --mode managed an
# unset OR EMPTY MOSAIC_HOST_ROOT is a VALIDATION_ERROR for every v2 file —
# not only tool-managed. In --mode display it warns and omits root-dependent
# resolution; grammar checks still run.
#
# Error contract (T51P2R1 F3): every malformed input — bad UTF-8, non-RFC JSON
# constants (NaN/Infinity), wrong-typed enums, anything unexpected — yields
# exactly one stable VALIDATION_ERROR line and exit 1. No traceback ever
# escapes. Branch names are validated by delegating to `git check-ref-format
# --branch` (F2), translated into this contract.
#
# Usage:
# validate-repo-json.sh <repo.json> [--mode managed|display] [--require-v2]
# validate-repo-json.sh --mirror-path <host> <owner> <repo> # §3.1 component check
# validate-repo-json.sh --normalize-remote <url> # §5.3, prints normalized
# validate-repo-json.sh --version
#
# Output: OK (exit 0) | VALIDATION_ERROR <key>: <reason> (exit 1) | warnings on stderr.
set -euo pipefail
VERSION="1.1.0+t51spec-r3+t51p2rw1"
if [ "${1:-}" = "--version" ]; then echo "validate-repo-json $VERSION"; exit 0; fi
exec python3 - "$@" <<'PYEOF'
import json, os, re, subprocess, sys, urllib.parse
def err(key, reason):
print(f"VALIDATION_ERROR {key}: {reason}")
sys.exit(1)
def warn(msg):
print(f"warning: {msg}", file=sys.stderr)
def main():
ARGS = sys.argv[1:]
MODE = "managed"
REQUIRE_V2 = False
# ---- subcommands first (they take no file argument) ----
def check_mirror_components(host, owner, repo):
# fullmatch: '$' must bind at true end (F5 — a trailing newline must
# NOT pass); the charset excludes control bytes outright.
comp_re = re.compile(r"[a-z0-9][a-z0-9.-]*")
for label, value in (("host", host), ("owner", owner), ("repo", repo)):
if not isinstance(value, str) or not value or not comp_re.fullmatch(value):
err("mirror-component", f"{label} {value!r} fails §3.1 charset ^[a-z0-9][a-z0-9.-]*$ (fullmatch, no '/', no delimiter, no control bytes)")
return f"projects/{host}/{owner}/{repo}/repo.json"
def normalize_remote(url):
# R5-B1 part 1: reject raw control bytes BEFORE urlsplit — urlsplit
# silently strips TAB/LF/CR, so different input bytes would normalize
# to a different host. The raw bytes ARE the input; nothing may rewrite them.
for ch in url:
if ord(ch) < 0x20 or ord(ch) == 0x7F:
err("canonical_remote", "control byte in URL rejected before parsing (urlsplit would strip it and change the host)")
try:
p = urllib.parse.urlsplit(url)
except ValueError as e:
# py3.12 urlsplit itself validates bracketed hosts (ipaddress) and
# raises for garbage authorities — translate, never traceback.
err("canonical_remote", f"invalid URL authority: {e}")
if not p.scheme or not p.netloc:
err("canonical_remote", f"not a URL with scheme+host: {url!r}")
if p.username or p.password or "@" in (p.netloc or ""):
err("canonical_remote", "userinfo in URL is rejected (§5.3)")
scheme = p.scheme.lower()
# T51P2R4 B1: bracketing is detected from the RAW netloc ('[' prefix),
# not from a ':' in the parsed hostname — IPvFuture literals ([v1.fe80])
# contain no colon and must not bypass the raw-authority proof.
bracketed = p.netloc.startswith("[")
if bracketed:
# Prove the RAW authority is exactly '[host]' + optional ':port'
# (case-normalized); any text after ']' is hostile/truncated input,
# rejected — never silently rewritten.
import re as _re
import ipaddress as _ip
m = _re.fullmatch(r"\[([^\]]*)\](?::([0-9]+))?", p.netloc)
if not m:
err("canonical_remote", f"malformed bracketed authority {p.netloc!r}: text after ']' is rejected (no silent truncation)")
payload = m.group(1)
# R5-B1 part 2: the bracket payload must be a REAL RFC literal —
# an IPv6 address (ipaddress parse) or an IPvFuture literal
# ("v" + HEXDIG+ + "." + unreserved / sub-delims / ":" only).
# Anything else inside brackets is rejected, closing the payload
# grammar as a class.
if _re.fullmatch(r"v[0-9A-Fa-f]+\.[A-Za-z0-9._~!$&'()*+,;=:-]*", payload):
pass # IPvFuture (case-normalized below)
elif _re.fullmatch(r"[0-9A-Fa-f:.]+", payload):
# strict IPv6 lexical form (hex/colon/dot only — ipaddress alone
# would also accept scoped zone-ids like fe80::1%eth0, which are
# not valid URI host grammar unless %25-encoded)
try:
_ip.IPv6Address(payload)
except ValueError:
err("canonical_remote",
f"bracket payload {payload!r} is not a valid IPv6 address")
else:
err("canonical_remote",
f"bracket payload {payload!r} is neither a valid IPv6 address nor an IPvFuture literal (v+HEXDIG+.+unreserved/sub-delims/colon)")
host = f"[{payload.lower()}]" # brackets preserved (IPv6 + IPvFuture)
else:
# R6-B1: the non-bracketed branch — urlsplit PARSES but does not
# VALIDATE reg-name, and netloc-nonempty is not host presence.
# Split the raw authority ourselves (host[:port]) and validate the
# raw host against real grammar: unreserved / sub-delims / complete
# %HH octets (reg-name), or IPv4 dotted-quad (reg-name's numeric
# case). Port must be all digits. No branch trusts urlsplit alone.
import re as _re
raw_host, sep, raw_port = p.netloc.rpartition(":")
if sep and _re.fullmatch(r"[0-9]+", raw_port):
pass # host:port split
elif sep:
err("canonical_remote", f"invalid port {raw_port!r} in authority {p.netloc!r} (ASCII digits only)")
else:
raw_host, raw_port = p.netloc, None
if not raw_host:
err("canonical_remote", f"empty host in authority {p.netloc!r}")
# strict reg-name / IPv4 scan: unreserved + sub-delims, with '%'
# only inside complete %HH octets (IPv4 dotted-quad is a subset of
# this charset — digits and dots — so one scan covers both).
import re as _re
i = 0
ok_host = True
while i < len(raw_host):
c = raw_host[i]
if c == "%":
if i + 2 >= len(raw_host) or not _re.fullmatch(r"[0-9A-Fa-f]{2}", raw_host[i+1:i+3]):
ok_host = False; break
i += 3
elif c in "!$&'()*+,;=-._~" or ("a" <= c <= "z") or ("A" <= c <= "Z") or ("0" <= c <= "9"):
# R7-B1: EXPLICIT ASCII only — str.isalnum() is Unicode-aware
# and admits non-ASCII letters/digits (é, full-width ). Policy
# is ASCII-only reg-name; punycode xn-- is the sanctioned
# Unicode spelling and remains legal under this charset.
i += 1
else:
ok_host = False; break
if not ok_host:
err("canonical_remote", f"host {raw_host!r} is not valid reg-name/IPv4 grammar (unreserved/sub-delims/complete %HH only)")
host = raw_host.lower()
port = p.port # None when absent; preserved whenever explicitly present (B2: incl. 0)
authority = host + (f":{port}" if port is not None else "")
path = p.path or "/"
# canonical trailing-slash + .git strip as ONE operation (F4): slash
# first, then .git, then any slash exposed by that strip.
path = path.rstrip("/")
if path.endswith(".git"):
path = path[:-4].rstrip("/")
return f"{scheme}://{authority}{path or ''}"
if "--mirror-path" in ARGS:
idx = ARGS.index("--mirror-path")
parts = ARGS[idx + 1:]
if len(parts) != 3:
err("usage", "--mirror-path takes <host> <owner> <repo>")
print(check_mirror_components(*parts))
sys.exit(0)
if "--normalize-remote" in ARGS:
idx = ARGS.index("--normalize-remote")
vals = ARGS[idx + 1:]
if len(vals) != 1:
err("usage", "--normalize-remote takes <url>")
print(normalize_remote(vals[0]))
sys.exit(0)
# ---- arg parsing ----
if not ARGS:
err("usage", "a repo.json path is required")
path = None
i = 0
while i < len(ARGS):
a = ARGS[i]
if a == "--mode":
i += 1
if i >= len(ARGS) or ARGS[i] not in ("managed", "display"):
err("usage", "--mode takes managed|display")
MODE = ARGS[i]
elif a == "--require-v2":
REQUIRE_V2 = True
elif a.startswith("--"):
err("usage", f"unknown option {a}")
else:
if path is not None:
err("usage", "multiple file arguments")
path = a
i += 1
if path is None:
err("usage", "a repo.json path is required")
# ---- load: strict UTF-8, strict RFC JSON (F3) ----
try:
with open(path, "rb") as fh:
raw_bytes = fh.read()
except OSError as e:
err("file", str(e))
try:
raw = raw_bytes.decode("utf-8")
except UnicodeDecodeError as e:
err("json", f"invalid UTF-8: {e}")
def _reject_constant(name):
raise ValueError(f"non-RFC JSON constant {name}")
try:
doc = json.loads(raw, parse_constant=_reject_constant)
except (json.JSONDecodeError, ValueError) as e:
err("json", f"malformed JSON: {e}")
if not isinstance(doc, dict):
err("json", "top level must be an object")
HOST_ROOT = os.environ.get("MOSAIC_HOST_ROOT", "")
V1_KEYS = {"integration_trunk", "release_branch"}
V2_REQUIRED = ["schema_version", "integration_trunk", "release_branch", "flow",
"canonical_remote", "canonical_clone"]
V2_OPTIONAL = {"worktree_root", "worktree_policy", "notes", "x_extensions"}
ENUM_FLOW = {"direct", "trunk-release"}
ENUM_POLICY = {"tool-managed", "orchestrator-precreated"}
def check_branch(key, value):
# Delegate the full git branch grammar to git itself (F2). B1: reject
# reflog shorthand BEFORE delegation — `git check-ref-format --branch
# '@{-n}'` expands from the CALLER repo's checkout history, making
# validation cwd-dependent; a persistent declaration must never bind
# to ambient reflog state.
if not isinstance(value, str) or not value:
err(key, "must be a non-empty string")
if "@{" in value:
err(key, f"{value!r} contains '@{{' reflog/namespace shorthand — declarations must be literal branch names (B1)")
if value.startswith("refs/heads/"): # check-ref-format --branch strips this; we do not allow it
err(key, "bare branch name expected, not a full ref")
try:
r = subprocess.run(["git", "check-ref-format", "--branch", value],
capture_output=True)
except OSError as e:
err(key, f"cannot invoke git check-ref-format: {e}")
if r.returncode != 0:
err(key, f"{value!r} is not a valid git branch name (git check-ref-format, §5.2)")
def check_host_path(key, value):
# §1.2a: host:/-anchored; canonical segment normalization; empty/./.. rejected
# BEFORE resolution; tilde rejected outright.
if not isinstance(value, str) or not value:
err(key, "must be a non-empty string")
if "~" in value:
err(key, "tilde-anchored path rejected (§1.2a: ~ binds to caller HOME)")
if not value.startswith("host:/"):
err(key, "must be host:/-anchored (§1.2a)")
rest = value[len("host:/"):]
if rest == "":
err(key, "no segments after host:/")
segments = rest.split("/")
for seg in segments:
if seg == "":
err(key, f"empty segment in {value!r} (canonical normalization, §1.2a)")
if seg in (".", ".."):
err(key, f"dot segment {seg!r} rejected before resolution (§1.2a)")
return segments
# ---- version ----
sv = doc.get("schema_version")
if "schema_version" in doc:
if not isinstance(sv, int) or isinstance(sv, bool):
err("schema_version", "must be an integer")
if sv not in (1, 2):
err("schema_version", f"unknown schema_version {sv} — treated as ABSENT per keep-list K3; update tooling")
version = sv
else:
version = 1
warn("schema_version absent → v1 compatibility mode (two keys only)")
if REQUIRE_V2 and version != 2:
err("schema_version", "CI authoring rule: new or edited declarations must declare schema_version 2")
# ---- v1 ----
if version == 1:
for k in V1_KEYS:
check_branch(k, doc.get(k))
extra = set(doc) - V1_KEYS
if extra:
err("x_extensions", f"unknown top-level keys in v1: {sorted(extra)}")
print("OK (v1)")
sys.exit(0)
# ---- v2 required ----
for k in V2_REQUIRED:
if k not in doc:
err(k, "required for v2 (§1.2)")
check_branch("integration_trunk", doc["integration_trunk"])
check_branch("release_branch", doc["release_branch"])
# type-check BEFORE membership (F3: list-typed enums must not traceback)
if not isinstance(doc["flow"], str) or doc["flow"] not in ENUM_FLOW:
err("flow", f"must be one of {sorted(ENUM_FLOW)} (§1.2, required — no defaulting, R7)")
unknown = set(doc) - set(V2_REQUIRED) - V2_OPTIONAL
if unknown:
err("x_extensions", f"unknown top-level keys {sorted(unknown)} — place extensions inside x_extensions")
if "worktree_policy" in doc and (not isinstance(doc["worktree_policy"], str)
or doc["worktree_policy"] not in ENUM_POLICY):
err("worktree_policy", f"must be one of {sorted(ENUM_POLICY)}")
if "notes" in doc and not isinstance(doc["notes"], str):
err("notes", "must be a string")
if "x_extensions" in doc and not isinstance(doc["x_extensions"], dict):
err("x_extensions", "must be an object")
for strkey in ("canonical_remote", "canonical_clone", "worktree_root"):
if strkey in doc and not isinstance(doc[strkey], str):
err(strkey, "must be a string")
# ---- remote (§5.3) ----
if not isinstance(doc["canonical_remote"], str):
err("canonical_remote", "must be a string")
else:
normalize_remote(doc["canonical_remote"])
# ---- paths (§1.2a) ----
canonical_segments = check_host_path("canonical_clone", doc["canonical_clone"])
wt_segments = None
if "worktree_root" in doc:
wt_segments = check_host_path("worktree_root", doc["worktree_root"])
# ---- cross-field (§5.2) ----
trunk, rel, flow = doc["integration_trunk"], doc["release_branch"], doc["flow"]
if flow == "direct" and trunk != rel:
err("flow", "direct requires integration_trunk == release_branch (§5.2)")
if flow == "trunk-release" and trunk == rel:
err("flow", "trunk-release requires integration_trunk != release_branch (§5.2)")
# ---- root gate (§1.2a fail-closed; T51P2R1 F1) ----
# Every v2 declaration consumes a path (canonical_clone is required), so
# managed mode cannot proceed without a provable host anchor. Display mode
# warns and omits root-dependent resolution only.
if not HOST_ROOT:
if MODE == "managed":
err("MOSAIC_HOST_ROOT",
"unset or empty — managed validation of a v2 declaration consumes paths "
"(canonical_clone required); fail closed (§1.2a, DR3 X2b)")
else:
warn("host root unset; root-dependent resolution omitted (display mode, §1.2a)")
if doc.get("worktree_policy") == "tool-managed":
if "worktree_root" not in doc:
err("worktree_policy", "tool-managed requires worktree_root (containment provable, §4.5)")
if HOST_ROOT:
root_real = os.path.realpath(HOST_ROOT)
# B3 fix: containment is tested on the LEXICAL normalized path, not
# on realpath of the joined result — a child symlink under the host
# root can no longer fake outside-ness. host:/ segments are always
# lexically under the root, so tool-managed fails universally until
# the anchor scheme grows a real outside-root form (J3 charter).
resolved = os.path.normpath(os.path.join(root_real, *wt_segments))
if resolved == root_real or resolved.startswith(root_real + os.sep):
err("worktree_policy",
f"tool-managed worktree_root resolves inside MOSAIC_HOST_ROOT (§4.5: outside-root requirement)")
# no-root case: managed mode already failed at the gate above; display warned
print("OK")
try:
main()
except SystemExit:
raise
except Exception as e: # F3: no traceback may ever escape the contract
err("internal", f"input rejected (unexpected condition: {type(e).__name__})")
PYEOF
+1 -1
View File
@@ -25,7 +25,7 @@
"lint": "eslint src",
"typecheck": "tsc --noEmit",
"test": "vitest run --passWithNoTests && pnpm run test:framework-shell",
"test:framework-shell": "bash framework/tools/quality/scripts/check-test-enumeration.sh && bash framework/tools/quality/scripts/test-check-test-enumeration.sh && python3 framework/tools/quality/scripts/test-framework-drift-check.py && bash framework/tools/quality/scripts/test-framework-drift-doctor.sh && bash framework/systemd/user/test-fleet-units.sh && python3 src/lease-broker/daemon_deadline_unittest.py && python3 src/lease-broker/normative_fragments_unittest.py && python3 src/lease-broker/promotion_binding_unittest.py && python3 src/lease-broker/promotion_trigger_unittest.py && python3 src/lease-broker/receipt_challenge_unittest.py && python3 src/lease-broker/context_recovery_unittest.py && python3 src/lease-broker/recovery_runtime_unittest.py && python3 src/lease-broker/recovery_b1_adversarial_unittest.py && python3 src/lease-broker/receipt_observer_client_unittest.py && python3 src/lease-broker/invariant_r_unittest.py && python3 src/lease-broker/framework_skill_portability_unittest.py && python3 src/lease-broker/revoke_noop_unittest.py && python3 src/mutator-gate/runtime_tools_unittest.py && python3 src/mutator-gate/runtime_launch_guard_unittest.py && python3 src/mutator-gate/version_coupling_unittest.py && python3 framework/tools/lease-broker/check-runtime-launches.py --root ../.. && bash framework/tools/codex/test-pr-diff-context.sh && bash framework/tools/qa/test-deps-preflight.sh && bash framework/tools/git/test-pr-edit.sh && bash framework/tools/git/test-pr-create-fallback-default-base.sh && bash framework/tools/git/test-pr-review-gitea-comment.sh && bash framework/tools/git/test-pr-review-repo-host-override.sh && bash framework/tools/git/test-ci-queue-wait-no-status.sh && bash framework/tools/git/test-ci-queue-wait-branch-absent.sh && bash framework/tools/git/test-ci-queue-wait-tristate.sh && bash framework/tools/git/test-ci-queue-wait-github-checks.sh && bash framework/tools/git/test-ci-queue-wait-no-ci-expected.sh && bash framework/tools/git/test-pr-merge-queue-branch.sh && bash framework/tools/git/test-pr-merge-no-ci-expected.sh && bash framework/tools/git/test-pr-merge-fork-ci-status.sh && bash framework/tools/git/test-pr-merge-head-pin.sh && bash framework/tools/git/test-pr-merge-message-field.sh && bash framework/tools/git/test-git-credential-mosaic.sh && bash framework/tools/git/test-gitea-token-identity.sh && bash framework/tools/git/test-explain-diagnostic-status-neutral.sh && bash framework/tools/git/test-detect-platform-outside-repo.sh && bash framework/tools/woodpecker/test-terminal-green-contract.sh && bash framework/tools/_scripts/test-install-ordering-guard.sh && bash framework/tools/_scripts/test-mosaic-init-rce.sh && bash framework/tools/tmux/agent-send.test.sh && bash framework/tools/wake/test-wake-store-ack.sh && bash framework/tools/wake/test-wake-store-enqueue-race.sh && bash framework/tools/wake/test-wake-digest-hmac.sh && bash framework/tools/wake/test-wake-digest-quarantine.sh && bash framework/tools/wake/test-wake-detector.sh && bash framework/tools/wake/test-wake-fn-oracle.sh && bash framework/tools/wake/test-wake-reconcile.sh && bash framework/tools/wake/test-wake-beacon.sh && bash framework/tools/wake/test-wake-preimage.sh && bash framework/tools/wake/test-wake-install.sh && bash framework/tools/glpi/test-list-http-status.sh && bash framework/tools/orchestrator/test-board-roll.sh && bash framework/tools/woodpecker/test-ci-wait-exit-matrix.sh && bash framework/tools/_scripts/test-fleet-transport-check.sh && bash framework/tools/_scripts/test-brain-home-check.sh && bash framework/tools/_scripts/test-structure-anchor-check.sh && bash framework/tools/fleet/test-agent-session-broker-preflight.sh"
"test:framework-shell": "bash framework/tools/quality/scripts/check-test-enumeration.sh && bash framework/tools/quality/scripts/test-check-test-enumeration.sh && python3 framework/tools/quality/scripts/test-framework-drift-check.py && bash framework/tools/quality/scripts/test-framework-drift-doctor.sh && bash framework/systemd/user/test-fleet-units.sh && python3 src/lease-broker/daemon_deadline_unittest.py && python3 src/lease-broker/normative_fragments_unittest.py && python3 src/lease-broker/promotion_binding_unittest.py && python3 src/lease-broker/promotion_trigger_unittest.py && python3 src/lease-broker/receipt_challenge_unittest.py && python3 src/lease-broker/context_recovery_unittest.py && python3 src/lease-broker/recovery_runtime_unittest.py && python3 src/lease-broker/recovery_b1_adversarial_unittest.py && python3 src/lease-broker/receipt_observer_client_unittest.py && python3 src/lease-broker/invariant_r_unittest.py && python3 src/lease-broker/framework_skill_portability_unittest.py && python3 src/lease-broker/revoke_noop_unittest.py && python3 src/mutator-gate/runtime_tools_unittest.py && python3 src/mutator-gate/runtime_launch_guard_unittest.py && python3 src/mutator-gate/version_coupling_unittest.py && python3 framework/tools/lease-broker/check-runtime-launches.py --root ../.. && bash framework/tools/codex/test-pr-diff-context.sh && bash framework/tools/qa/test-deps-preflight.sh && bash framework/tools/git/test-pr-edit.sh && bash framework/tools/git/test-pr-create-fallback-default-base.sh && bash framework/tools/git/test-pr-review-gitea-comment.sh && bash framework/tools/git/test-pr-review-repo-host-override.sh && bash framework/tools/git/test-ci-queue-wait-no-status.sh && bash framework/tools/git/test-ci-queue-wait-branch-absent.sh && bash framework/tools/git/test-ci-queue-wait-tristate.sh && bash framework/tools/git/test-ci-queue-wait-github-checks.sh && bash framework/tools/git/test-ci-queue-wait-no-ci-expected.sh && bash framework/tools/git/test-pr-merge-queue-branch.sh && bash framework/tools/git/test-pr-merge-no-ci-expected.sh && bash framework/tools/git/test-pr-merge-fork-ci-status.sh && bash framework/tools/git/test-pr-merge-head-pin.sh && bash framework/tools/git/test-pr-merge-message-field.sh && bash framework/tools/git/test-git-credential-mosaic.sh && bash framework/tools/git/test-gitea-token-identity.sh && bash framework/tools/git/test-explain-diagnostic-status-neutral.sh && bash framework/tools/git/test-detect-platform-outside-repo.sh && bash framework/tools/woodpecker/test-terminal-green-contract.sh && bash framework/tools/_scripts/test-install-ordering-guard.sh && bash framework/tools/_scripts/test-mosaic-init-rce.sh && bash framework/tools/tmux/agent-send.test.sh && bash framework/tools/wake/test-wake-store-ack.sh && bash framework/tools/wake/test-wake-store-enqueue-race.sh && bash framework/tools/wake/test-wake-digest-hmac.sh && bash framework/tools/wake/test-wake-digest-quarantine.sh && bash framework/tools/wake/test-wake-detector.sh && bash framework/tools/wake/test-wake-fn-oracle.sh && bash framework/tools/wake/test-wake-reconcile.sh && bash framework/tools/wake/test-wake-beacon.sh && bash framework/tools/wake/test-wake-preimage.sh && bash framework/tools/wake/test-wake-install.sh && bash framework/tools/glpi/test-list-http-status.sh && bash framework/tools/orchestrator/test-board-roll.sh && bash framework/tools/woodpecker/test-ci-wait-exit-matrix.sh && bash framework/tools/_scripts/test-fleet-transport-check.sh && bash framework/tools/_scripts/test-brain-home-check.sh && bash framework/tools/fleet/test-agent-session-broker-preflight.sh"
},
"dependencies": {
"@mosaicstack/brain": "workspace:*",
@@ -1,4 +1,4 @@
import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
import {
chmodSync,
mkdtempSync,
@@ -16,6 +16,7 @@ import {
renderPeerReach,
readFleetCommsBlock,
resolveCommsBlock,
resolveFleetIdentity,
resolvePeerCommand,
renderToolsContractStatus,
} from './comms-onboarding.js';
@@ -61,6 +62,68 @@ describe('shared fleet roster v1 resolver', () => {
});
});
// stack#1380 verification unblock: the fleet's own roster-v2 tooling writes
// the v1 body plus a generation fence and seat lifecycle/launch envelopes.
// The parser tolerates exactly that envelope (validated, opaque to comms).
const V2_ROSTER = [
'version: 2',
'generation: 8',
'transport: tmux',
'tmux:',
' socket_name: mosaic-fleet',
'defaults:',
' working_directory: ~/.mosaic',
' runtime: claude',
'agents:',
' - name: orch-01',
' runtime: claude',
' class: orchestrator',
' model: opus',
' reasoning: high',
' lifecycle:',
' enabled: true',
' desired_state: running',
' launch:',
' yolo: false',
'',
].join('\n');
it('accepts the roster-v2 envelope (generation + lifecycle/launch) on the v1 body', () => {
const resolved = parseFleetRosterV1(V2_ROSTER, 'yaml');
expect(resolved.tmux.socketName).toBe('mosaic-fleet');
expect(resolved.agents[0]?.name).toBe('orch-01');
});
it('rejects a non-integer generation', () => {
expect(() =>
parseFleetRosterV1(V2_ROSTER.replace('generation: 8', 'generation: eight'), 'yaml'),
).toThrow(/generation must be a non-negative integer/);
});
it('rejects an invalid lifecycle desired_state', () => {
expect(() =>
parseFleetRosterV1(
V2_ROSTER.replace('desired_state: running', 'desired_state: paused'),
'yaml',
),
).toThrow(/desired_state must be running\|stopped/);
});
it('rejects unknown fields inside the lifecycle envelope', () => {
expect(() =>
parseFleetRosterV1(
V2_ROSTER.replace(' enabled: true', ' enabled: true\n surprise: 1'),
'yaml',
),
).toThrow(/lifecycle has unknown field/);
});
it('rejects a non-boolean launch.yolo', () => {
expect(() =>
parseFleetRosterV1(V2_ROSTER.replace('yolo: false', 'yolo: sometimes'), 'yaml'),
).toThrow(/launch\.yolo must be a boolean/);
});
it('rejects unknown fields instead of leniently constructing a second roster view', () => {
expect(() => parseFleetRosterV1(`${ROSTER}\nunknown: value\n`, 'yaml')).toThrow(
/unknown field/i,
@@ -493,6 +556,11 @@ describe('resolvePeerCommand', () => {
describe('readFleetCommsBlock — spawned-agent context', () => {
let home: string;
beforeEach(() => {
// Hermetic helper fallback (stack#1380): the resolver probes
// $HOME/.config/mosaic when mosaicHome itself carries no helper — point
// HOME at a sandbox parent so tests never see the real host install.
vi.stubEnv('HOME', mkdtempSync(join(tmpdir(), 'mosaic-homeless-')));
vi.stubEnv('MOSAIC_HOME', '');
home = mkdtempSync(join(tmpdir(), 'mosaic-comms-'));
mkdirSync(join(home, 'fleet'), { recursive: true });
mkdirSync(join(home, 'tools', 'tmux'), { recursive: true });
@@ -501,7 +569,10 @@ describe('readFleetCommsBlock — spawned-agent context', () => {
writeFileSync(helper, '#!/bin/sh\n');
chmodSync(helper, 0o755);
});
afterEach(() => rmSync(home, { recursive: true, force: true }));
afterEach(() => {
vi.unstubAllEnvs();
rmSync(home, { recursive: true, force: true });
});
it('uses the authoritative self host and global socket from the shared roster resolver', () => {
const result = readFleetCommsBlock(home, 'enhancer', 'process-host-must-not-win');
@@ -564,23 +635,27 @@ describe('readFleetCommsBlock — spawned-agent context', () => {
},
],
[
'symlink',
'symlink escaping the install home',
() => {
const helper = join(home, 'tools', 'tmux', 'agent-send.sh');
rmSync(helper);
writeFileSync(join(home, 'real-send.sh'), '#!/bin/sh\n');
symlinkSync(join(home, 'real-send.sh'), helper);
const outside = mkdtempSync(join(tmpdir(), 'mosaic-helper-outside-'));
writeFileSync(join(outside, 'real-send.sh'), '#!/bin/sh\n', { mode: 0o755 });
symlinkSync(join(outside, 'real-send.sh'), helper);
},
],
['non-executable', () => chmodSync(join(home, 'tools', 'tmux', 'agent-send.sh'), 0o644)],
])('fails closed for a %s helper with deterministic repair guidance', (_case, mutate) => {
mutate();
const result = readFleetCommsBlock(home, 'enhancer', 'w-jarvis');
expect(result.ok).toBe(false);
expect(result.output).toBe('');
expect(result.error).toContain('mosaic update --repair-tools');
expect(result.error).toContain('no active context or session was rewritten');
});
])(
'fails closed for a %s helper with deterministic guidance (no forbidden remedy)',
(_case, mutate) => {
mutate();
const result = readFleetCommsBlock(home, 'enhancer', 'w-jarvis');
expect(result.ok).toBe(false);
expect(result.output).toBe('');
expect(result.error).not.toContain('--repair-tools'); // stack#1380 M5a
expect(result.error).toContain('no active context or session was rewritten');
},
);
it('does not rewrite the roster while resolving context', () => {
const path = join(home, 'fleet', 'roster.yaml');
@@ -603,11 +678,11 @@ describe('renderToolsContractStatus — non-mutating install drift', () => {
});
afterEach(() => rmSync(home, { recursive: true, force: true }));
it('uses the supported repair command when installed TOOLS.md is missing', () => {
it('names operator-verified recovery instead of a forbidden remedy when installed TOOLS.md is missing', () => {
const status = renderToolsContractStatus(home);
expect(status).toContain('mosaic update --repair-tools');
expect(status).not.toContain('--reseed');
expect(status).toContain('authorized operator');
expect(status).not.toContain('--repair-tools'); // stack#1380 M5a
expect(status).not.toContain('--reseed');
});
it('reports stale preserved content without rewriting it', () => {
@@ -616,8 +691,8 @@ describe('renderToolsContractStatus — non-mutating install drift', () => {
writeFileSync(path, stale);
const status = renderToolsContractStatus(home);
expect(status).toContain('fleet-comms-contract: 1');
expect(status).toContain('digest-qualified backup');
expect(status).toContain('mosaic update --repair-tools');
expect(status).toContain('authorized operator');
expect(status).not.toContain('--repair-tools'); // stack#1380 M5a
expect(status).toContain('active context was not rewritten');
expect(readFileSync(path, 'utf8')).toBe(stale);
});
@@ -648,7 +723,7 @@ describe('renderToolsContractStatus — non-mutating install drift', () => {
expect(renderToolsContractStatus(home)).not.toBe('');
});
it('treats installed TOOLS.md symlinks as stale without following or rewriting them', () => {
it('reads an installed TOOLS.md symlink whose validated target diverges (stack#1380 resolve-then-validate)', () => {
const external = join(home, 'external-tools.md');
const externalContent = '# external\n<!-- fleet-comms-contract: 1 -->\n';
writeFileSync(external, externalContent);
@@ -656,24 +731,23 @@ describe('renderToolsContractStatus — non-mutating install drift', () => {
const status = renderToolsContractStatus(home);
expect(status).toContain('unavailable');
expect(status).toContain('mosaic update --repair-tools');
expect(status).toContain('does not byte-match');
expect(readFileSync(external, 'utf8')).toBe(externalContent);
});
it('treats source TOOLS.md symlinks as unavailable without following them', () => {
const external = join(home, 'external-source.md');
it('treats a source TOOLS.md symlink escaping the install home as unavailable', () => {
const outside = mkdtempSync(join(tmpdir(), 'mosaic-source-outside-'));
const content = '# authoritative tools\n<!-- fleet-comms-contract: 1 -->\n';
writeFileSync(external, content);
writeFileSync(join(outside, 'external-source.md'), content);
rmSync(join(home, 'defaults', 'TOOLS.md'));
symlinkSync(external, join(home, 'defaults', 'TOOLS.md'));
symlinkSync(join(outside, 'external-source.md'), join(home, 'defaults', 'TOOLS.md'));
writeFileSync(join(home, 'TOOLS.md'), content);
const status = renderToolsContractStatus(home);
expect(status).toContain('source contract');
expect(status).toContain('unavailable');
expect(readFileSync(external, 'utf8')).toBe(content);
expect(readFileSync(join(outside, 'external-source.md'), 'utf8')).toBe(content);
});
it('accepts byte-equal bounded source and installed contracts', () => {
@@ -730,3 +804,91 @@ describe('resolveCommsBlock — mosaic agent comms-block', () => {
expect(result.error).toContain('requires');
});
});
describe('resolveFleetIdentity — stack#1380 split-home layouts', () => {
// Brain-shaped mosaicHome (fleet state, NO tools/tmux) + framework config
// home carrying the helper, roster unified by the framework-created symlink
// <configHome>/fleet/roster.yaml -> <brain>/fleet/roster.yaml. This is the
// host layout that was down; all probes are POSITIONAL per the #1380
// verification protocol (an object arg proves nothing — M5b). HOME is
// stubbed so the config-default fallback stays inside the sandbox.
let brain: string;
let configHome: string;
beforeEach(() => {
const parent = mkdtempSync(join(tmpdir(), 'mosaic-i1380-parent-'));
brain = join(parent, 'brain');
// Framework home at the stubbed DEFAULT location so the fallback derives
// exactly as in production ($HOME/.config/mosaic), not by coincidence.
configHome = join(parent, 'home', '.config', 'mosaic');
vi.stubEnv('HOME', join(parent, 'home'));
vi.stubEnv('MOSAIC_HOME', '');
mkdirSync(join(brain, 'fleet'), { recursive: true });
writeFileSync(join(brain, 'fleet', 'roster.yaml'), ROSTER, { mode: 0o600 });
mkdirSync(join(configHome, 'fleet'), { recursive: true });
symlinkSync(join(brain, 'fleet', 'roster.yaml'), join(configHome, 'fleet', 'roster.yaml'));
mkdirSync(join(configHome, 'tools', 'tmux'), { recursive: true });
writeFileSync(join(configHome, 'tools', 'tmux', 'agent-send.sh'), '#!/bin/sh\n', {
mode: 0o755,
});
process.env['MOSAIC_BRAIN_HOME'] = brain;
});
afterEach(() => {
delete process.env['MOSAIC_BRAIN_HOME'];
vi.unstubAllEnvs();
rmSync(join(brain, '..'), { recursive: true, force: true });
});
it('resolves a member through the roster symlink under the config home', () => {
const result = resolveFleetIdentity(configHome, 'orchestrator', 'w-jarvis');
expect(result.ok).toBe(true);
expect(result.identity?.member.name).toBe('orchestrator');
expect(result.identity?.agentSendPath).toBe(join(configHome, 'tools', 'tmux', 'agent-send.sh'));
});
it('resolves a member when mosaicHome is the brain (helper found under the framework home)', () => {
const result = resolveFleetIdentity(brain, 'enhancer', 'w-jarvis');
expect(result.ok).toBe(true);
expect(result.identity?.member.name).toBe('enhancer');
expect(result.identity?.agentSendPath).toBe(join(configHome, 'tools', 'tmux', 'agent-send.sh'));
});
it('no-name control stays a quiet no-op', () => {
expect(resolveFleetIdentity(configHome, undefined, 'w-jarvis')).toEqual({ ok: true });
expect(resolveFleetIdentity(brain, undefined, 'w-jarvis')).toEqual({ ok: true });
});
it('a nonce name fails naming membership, not the symlink or the helper', () => {
const result = resolveFleetIdentity(configHome, 'nonce-' + Date.now(), 'w-jarvis');
expect(result.ok).toBe(false);
expect(result.error).not.toContain('symbolic link');
expect(result.error).not.toContain('helper');
expect(result.error).toContain('nonce-');
});
it('a non-member failure names membership, not the symlink (protocol control)', () => {
const result = resolveFleetIdentity(configHome, 'jarvis', 'w-jarvis');
expect(result.ok).toBe(false);
expect(result.error).not.toContain('symbolic link');
expect(result.error).not.toContain('helper is unavailable');
expect(result.error).toContain('orchestrator'); // known-member listing
});
it('names every searched framework home when the helper is missing everywhere', () => {
rmSync(join(configHome, 'tools'), { recursive: true, force: true });
const result = resolveFleetIdentity(brain, 'orchestrator', 'w-jarvis');
expect(result.ok).toBe(false);
expect(result.error).toContain('agent-send.sh');
expect(result.error).toContain(join(brain, 'tools', 'tmux', 'agent-send.sh'));
expect(result.error).not.toContain('--repair-tools');
});
it('readFleetCommsBlock composes the full contract on the split-home layout', () => {
const result = readFleetCommsBlock(configHome, 'orchestrator', 'w-jarvis');
expect(result.ok).toBe(true);
expect(result.output).toContain(
'Helper: `' + join(configHome, 'tools', 'tmux', 'agent-send.sh'),
);
});
});
+66 -8
View File
@@ -9,8 +9,9 @@
import { createHash } from 'node:crypto';
import { existsSync } from 'node:fs';
import { homedir, hostname } from 'node:os';
import { join } from 'node:path';
import { join, resolve } from 'node:path';
import { readRegularFileSecure } from './secure-file.js';
import { resolveBrainHome } from './brain-home.js';
import {
parseFleetRosterV1,
resolveInstalledFleetRosterPath,
@@ -260,7 +261,13 @@ context and have an authorized operator relaunch only this exact roster member w
function validateAgentSendHelper(path: string, mosaicHome: string): string | undefined {
try {
readRegularFileSecure(path, { root: mosaicHome, executable: true });
readRegularFileSecure(path, {
root: mosaicHome,
executable: true,
// The helper tree may live under the framework config home while this
// caller's mosaicHome is the brain; both are framework-owned roots.
symlinkTargetRoots: [resolveBrainHome(mosaicHome)],
});
return undefined;
} catch (error) {
const reason = error instanceof Error ? error.message : String(error);
@@ -268,8 +275,48 @@ function validateAgentSendHelper(path: string, mosaicHome: string): string | und
}
}
/**
* Framework install homes probed for tools/tmux/agent-send.sh (stack#1380 M2).
* The helper ships with the FRAMEWORK install, which on split-home layouts is
* the config home — not the brain (~/.mosaic carries fleet state, no tools).
*/
function frameworkHelperHomes(mosaicHome: string): string[] {
const homes = [resolve(mosaicHome)];
const envHome = process.env['MOSAIC_HOME'];
if (envHome && envHome.trim() !== '' && resolve(envHome) !== resolve(mosaicHome)) {
homes.push(resolve(envHome));
}
const configDefault = join(homedir(), '.config', 'mosaic');
if (resolve(configDefault) !== resolve(mosaicHome)) homes.push(configDefault);
return homes;
}
function resolveAgentSendHelper(mosaicHome: string): { path: string; error?: string } {
const homes = frameworkHelperHomes(mosaicHome);
for (const home of homes) {
const helper = join(home, 'tools', 'tmux', 'agent-send.sh');
if (!existsSync(helper)) continue;
const error = validateAgentSendHelper(helper, home);
if (!error) return { path: helper };
// Present but unsafe: surface that verdict instead of silently probing on.
return { path: helper, error };
}
return {
path: join(resolve(mosaicHome), 'tools', 'tmux', 'agent-send.sh'),
error:
`fleet helper agent-send.sh was not found under any framework install home ` +
`(${homes.map((h) => join(h, 'tools', 'tmux', 'agent-send.sh')).join('; ')}). ` +
`Verify the framework install for this host (the helper ships with the framework ` +
`config home; the brain home carries fleet state, not tools) and have an authorized ` +
`operator restore it if missing.`,
};
}
function helperFailureGuidance(reason: string): string {
return `${reason}. Run \`mosaic update --repair-tools\` to restore the supported current-version helper and TOOLS contract, then retry exact-member composition; no active context or session was rewritten.`;
// stack#1380 M5a: `mosaic update --repair-tools` is a forbidden remedy on the
// affected estate (and wrong for a layout/missing-helper failure). Name the
// actual recovery shape instead.
return `${reason}. Verify the framework install provides tools/tmux/agent-send.sh under the framework config home and that the roster resolves (split-home layouts symlink the roster into the brain); contact the operator if it persists; no active context or session was rewritten.`;
}
export function resolveFleetIdentity(
@@ -278,9 +325,15 @@ export function resolveFleetIdentity(
localHost: string = shortHostname(),
): FleetIdentityResult {
if (!requestedName) return { ok: true };
const agentSendPath = join(mosaicHome, 'tools', 'tmux', 'agent-send.sh');
const helperError = validateAgentSendHelper(agentSendPath, mosaicHome);
if (helperError) return { ok: false, error: helperFailureGuidance(helperError) };
const helper = resolveAgentSendHelper(mosaicHome);
if (helper.error) return { ok: false, error: helperFailureGuidance(helper.error) };
const agentSendPath = helper.path;
// Split-home layouts unify the roster by symlinking
// <configHome>/fleet/roster.yaml -> <brain>/fleet/roster.yaml. The secure
// read resolves that framework-created symlink when the brain is a
// sanctioned target root (stack#1380 M1).
const rosterSymlinkRoots = [resolveBrainHome(mosaicHome)];
let rosterPath: string;
try {
@@ -301,7 +354,10 @@ export function resolveFleetIdentity(
let roster: FleetRoster;
try {
roster = parseFleetRosterV1(
readRegularFileSecure(rosterPath, { root: mosaicHome }).content.toString('utf8'),
readRegularFileSecure(rosterPath, {
root: mosaicHome,
symlinkTargetRoots: rosterSymlinkRoots,
}).content.toString('utf8'),
rosterPath.endsWith('.json') ? 'json' : 'yaml',
);
} catch (error) {
@@ -399,7 +455,9 @@ function boundedContractDigest(
}
function replacementGuidance(): string {
return `Run \`mosaic update --repair-tools\` to make a digest-qualified backup and restore the supported current-version TOOLS contract, then have an authorized operator explicitly relaunch the exact roster member. The active context was not rewritten.`;
// stack#1380 M5a: never recommend the forbidden --repair-tools remedy from
// error text; name the operator-verified recovery shape instead.
return `Verify the installed TOOLS contract against the framework source with an authorized operator (the installed file must byte-match the supported current version) and have the operator explicitly relaunch the exact roster member. The active context was not rewritten.`;
}
/** Detect preserved installed TOOLS.md drift without changing it. */
+65 -1
View File
@@ -7,6 +7,7 @@ import { canonicalizeRoleClass } from '../commands/fleet-personas.js';
interface RawFleetRoster {
version?: unknown;
transport?: unknown;
generation?: unknown;
tmux?: {
socket_name?: unknown;
socketName?: unknown;
@@ -41,6 +42,10 @@ interface RawFleetRoster {
resetBetweenTasks?: unknown;
kickstart_template?: unknown;
kickstartTemplate?: unknown;
model?: unknown;
reasoning?: unknown;
lifecycle?: { enabled?: unknown; desired_state?: unknown };
launch?: { yolo?: unknown };
}>;
connector?: {
kind?: unknown;
@@ -216,7 +221,17 @@ function normalizeFleetRosterV1Unchecked(raw: RawFleetRoster): FleetRoster {
'runtimes',
'agents',
'connector',
// stack#1380 verification unblock: the fleet's own roster-v2 mutation
// tooling writes a `generation` fence on the same v1 body. Tolerated here
// as an opaque non-negative integer; comms semantics are unchanged.
'generation',
]);
if (
raw.generation !== undefined &&
(typeof raw.generation !== 'number' || !Number.isInteger(raw.generation) || raw.generation < 0)
) {
throw new Error('Fleet roster generation must be a non-negative integer.');
}
if (raw.tmux !== undefined) {
assertObject(raw.tmux, 'Fleet roster tmux');
assertKnownKeys(raw.tmux, 'Fleet roster tmux', [
@@ -231,6 +246,8 @@ function normalizeFleetRosterV1Unchecked(raw: RawFleetRoster): FleetRoster {
assertKnownKeys(raw.defaults, 'Fleet roster defaults', [
'working_directory',
'workingDirectory',
// stack#1380 verification unblock: roster-v2 default runtime hint.
'runtime',
]);
}
if (raw.runtimes !== undefined) {
@@ -243,7 +260,9 @@ function normalizeFleetRosterV1Unchecked(raw: RawFleetRoster): FleetRoster {
]);
}
}
if (raw.version !== 1) throw new Error('Fleet roster version must be 1.');
if (raw.version !== 1 && raw.version !== 2) {
throw new Error('Fleet roster version must be 1 or 2.');
}
if (raw.transport !== 'tmux') throw new Error('Fleet roster transport must be "tmux".');
if (!Array.isArray(raw.agents) || raw.agents.length === 0) {
throw new Error('Fleet roster must define at least one agent.');
@@ -318,7 +337,52 @@ function normalizeAgent(raw: NonNullable<RawFleetRoster['agents']>[number]): Fle
'resetBetweenTasks',
'kickstart_template',
'kickstartTemplate',
// stack#1380 verification unblock: roster-v2 envelope fields written by
// the fleet's own mutation tooling. Validated, then opaque to comms.
'model',
'reasoning',
'lifecycle',
'launch',
]);
if (raw.model !== undefined && typeof raw.model !== 'string') {
throw new Error('Fleet roster agent model must be a string.');
}
if (raw.reasoning !== undefined && typeof raw.reasoning !== 'string') {
throw new Error('Fleet roster agent reasoning must be a string.');
}
const lifecycle = raw.lifecycle as { enabled?: unknown; desired_state?: unknown } | undefined;
if (lifecycle !== undefined) {
if (typeof lifecycle !== 'object' || lifecycle === null) {
throw new Error('Fleet roster agent lifecycle must be an object.');
}
const lifecycleKeys = Object.keys(lifecycle);
if (!lifecycleKeys.every((key) => key === 'enabled' || key === 'desired_state')) {
throw new Error('Fleet roster agent lifecycle has unknown field(s).');
}
if (lifecycle.enabled !== undefined && typeof lifecycle.enabled !== 'boolean') {
throw new Error('Fleet roster agent lifecycle.enabled must be a boolean.');
}
if (
lifecycle.desired_state !== undefined &&
(typeof lifecycle.desired_state !== 'string' ||
!['running', 'stopped'].includes(lifecycle.desired_state))
) {
throw new Error('Fleet roster agent lifecycle.desired_state must be running|stopped.');
}
}
const launch = raw.launch as { yolo?: unknown } | undefined;
if (launch !== undefined) {
if (typeof launch !== 'object' || launch === null) {
throw new Error('Fleet roster agent launch must be an object.');
}
const launchKeys = Object.keys(launch);
if (!launchKeys.every((key) => key === 'yolo')) {
throw new Error('Fleet roster agent launch has unknown field(s).');
}
if (launch.yolo !== undefined && typeof launch.yolo !== 'boolean') {
throw new Error('Fleet roster agent launch.yolo must be a boolean.');
}
}
const name = stringValue(raw.name, '', 'Fleet roster agent name');
const runtime = stringValue(
raw.runtime,
+79 -9
View File
@@ -10,12 +10,14 @@ import {
type PathLike,
} from 'node:fs';
import type * as NodeFs from 'node:fs';
import type { Stats } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { join, resolve } from 'node:path';
interface FilesystemRaceState {
afterLstat?: (path: string) => void;
afterOpen?: (path: string) => void;
afterStat?: (path: string, stats: Stats) => Stats;
}
const filesystemRaceState = vi.hoisted<FilesystemRaceState>(() => ({}));
@@ -29,6 +31,10 @@ vi.mock('node:fs', async (importOriginal) => {
filesystemRaceState.afterLstat?.(String(path));
return result;
},
statSync: (path: PathLike) => {
const result = actual.statSync(path);
return filesystemRaceState.afterStat?.(String(path), result) ?? result;
},
openSync: (path: PathLike, flags: string | number, mode?: number) => {
const fd = actual.openSync(path, flags, mode);
filesystemRaceState.afterOpen?.(String(path));
@@ -46,11 +52,13 @@ describe('secure file reads', () => {
root = mkdtempSync(join(tmpdir(), 'mosaic-secure-file-'));
filesystemRaceState.afterLstat = undefined;
filesystemRaceState.afterOpen = undefined;
filesystemRaceState.afterStat = undefined;
});
afterEach(() => {
filesystemRaceState.afterLstat = undefined;
filesystemRaceState.afterOpen = undefined;
filesystemRaceState.afterStat = undefined;
rmSync(root, { recursive: true, force: true });
});
@@ -60,27 +68,89 @@ describe('secure file reads', () => {
);
});
it('rejects a symlink in a file ancestor', () => {
// stack#1380: the guard resolves symlinks and validates the resolved target
// instead of refusing any symlink component.
it('permits a symlink ancestor whose resolved target is inside the root', () => {
const external = join(root, 'external');
mkdirSync(external);
writeFileSync(join(external, 'file'), 'external\n');
symlinkSync(external, join(root, 'linked'));
expect(() => readRegularFileSecure(join(root, 'linked', 'file'), { root })).toThrow(
'path ancestor is a symbolic link',
);
const snapshot = readRegularFileSecure(join(root, 'linked', 'file'), { root });
expect(snapshot.content.toString('utf8')).toBe('external\n');
});
it('rejects a symlink target', () => {
const external = join(root, 'external');
it('permits a symlinked file whose resolved target is inside the root', () => {
const external = join(root, 'external-file');
writeFileSync(external, 'external\n');
symlinkSync(external, join(root, 'linked-file'));
expect(() => readRegularFileSecure(join(root, 'linked-file'), { root })).toThrow(
'file is a symbolic link',
const snapshot = readRegularFileSecure(join(root, 'linked-file'), { root });
expect(snapshot.content.toString('utf8')).toBe('external\n');
});
it('permits a symlink resolving into an additional sanctioned root (split-home roster shape)', () => {
const brain = `${root}-brain`;
mkdirSync(join(brain, 'fleet'), { recursive: true });
writeFileSync(join(brain, 'fleet', 'roster.yaml'), 'roster\n', { mode: 0o600 });
mkdirSync(join(root, 'fleet'));
symlinkSync(join(brain, 'fleet', 'roster.yaml'), join(root, 'fleet', 'roster.yaml'));
const snapshot = readRegularFileSecure(join(root, 'fleet', 'roster.yaml'), {
root,
symlinkTargetRoots: [brain],
});
expect(snapshot.content.toString('utf8')).toBe('roster\n');
});
it('refuses a symlink whose resolved target escapes every sanctioned root', () => {
const outside = mkdtempSync(join(tmpdir(), 'mosaic-secure-outside-'));
try {
mkdirSync(join(root, 'fleet'), { recursive: true });
writeFileSync(join(outside, 'roster.yaml'), 'escaped\n', { mode: 0o600 });
symlinkSync(join(outside, 'roster.yaml'), join(root, 'fleet', 'roster.yaml'));
expect(() => readRegularFileSecure(join(root, 'fleet', 'roster.yaml'), { root })).toThrow(
/symlink target escapes managed roots/,
);
} finally {
rmSync(outside, { recursive: true, force: true });
}
});
it('refuses a group-writable symlink target', () => {
const loose = join(root, 'loose');
mkdirSync(loose);
chmodSync(loose, 0o770); // group-writable bit survives umask via explicit chmod
writeFileSync(join(loose, 'file'), 'loose\n');
symlinkSync(loose, join(root, 'linked-loose'));
expect(() => readRegularFileSecure(join(root, 'linked-loose', 'file'), { root })).toThrow(
/group- or world-writable/,
);
});
it('refuses a symlink target owned by another user', () => {
const external = join(root, 'foreign');
mkdirSync(external);
writeFileSync(join(external, 'file'), 'foreign\n');
symlinkSync(external, join(root, 'linked-foreign'));
filesystemRaceState.afterStat = (path, stats): Stats => {
if (resolve(path) === resolve(external)) {
return { ...stats, uid: stats.uid + 4242 } as Stats;
}
return stats;
};
try {
expect(() => readRegularFileSecure(join(root, 'linked-foreign', 'file'), { root })).toThrow(
/not owned by the current user/,
);
} finally {
filesystemRaceState.afterStat = undefined;
}
});
it('keeps ancestor traversal bound when an opened directory is substituted', () => {
const tools = join(root, 'tools');
const displacedTools = join(root, 'tools.displaced');
+100 -26
View File
@@ -7,14 +7,25 @@ import {
mkdirSync,
openSync,
readFileSync,
readlinkSync,
statSync,
} from 'node:fs';
import { platform } from 'node:os';
import { dirname, isAbsolute, relative, resolve, sep } from 'node:path';
import { basename, dirname, isAbsolute, relative, resolve, sep } from 'node:path';
export interface SecureFileReadOptions {
root: string;
maxBytes?: number;
executable?: boolean;
/**
* Additional roots a symlink component may resolve into (stack#1380).
* Default: only the managed root itself. Every symlink hop is validated —
* containment under the root or one of these roots, current-user ownership,
* no group/world-writable mode — and refusal stays the default for anything
* else. Callers that operate the split-home layout pass the brain home so
* the framework-created roster symlink resolves.
*/
symlinkTargetRoots?: string[];
}
export interface SecureFileSnapshot {
@@ -88,7 +99,57 @@ function openDirectoryChain(absoluteDirectory: string): { fd: number; descriptor
}
}
function openFileBeneathRoot(root: string, target: string): { fd: number; descriptors: number[] } {
function containedUnder(root: string, target: string): boolean {
const rel = relative(resolve(root), resolve(target));
return rel !== '..' && !rel.startsWith(`..${sep}`) && !isAbsolute(rel) && rel !== '';
}
const MAX_SYMLINK_HOPS = 40;
/**
* Resolve every symlink on `lexical` component-wise, validating each hop
* (stack#1380 resolve-then-validate): the hop target must stay under one of
* the sanctioned roots, must be owned by the current user (or root), and must
* not be group- or world-writable. Returns a symlink-free absolute path.
*/
function resolveRealPath(lexical: string, sanctionedRoots: string[]): string {
const hopTargets: string[] = [];
let current: string = sep;
for (const piece of resolve(lexical).split(sep).filter(Boolean)) {
current = resolve(current, piece);
for (let hops = 0; lstatSync(current).isSymbolicLink(); ) {
if (++hops > MAX_SYMLINK_HOPS) {
throw new Error(`symlink chain exceeds ${MAX_SYMLINK_HOPS} hops: ${lexical}`);
}
const linkTarget = readlinkSync(current);
const absolute = resolve(dirname(current), linkTarget);
if (!sanctionedRoots.some((root) => containedUnder(root, absolute))) {
throw new Error(
`symlink target escapes managed roots [${sanctionedRoots.join(', ')}]: ${absolute}`,
);
}
hopTargets.push(absolute);
current = absolute;
}
}
const uid = typeof process.getuid === 'function' ? process.getuid() : 0;
for (const hop of hopTargets) {
const stat = statSync(hop);
if (stat.uid !== uid && stat.uid !== 0) {
throw new Error(`symlink target is not owned by the current user: ${hop}`);
}
if (stat.mode & 0o022) {
throw new Error(`symlink target is group- or world-writable: ${hop}`);
}
}
return current;
}
function openFileBeneathRoot(
root: string,
target: string,
symlinkTargetRoots: string[] = [],
): { fd: number; descriptors: number[] } {
const canonicalRoot = resolve(root);
const canonicalTarget = resolve(target);
assertCanonicalContainment(canonicalRoot, canonicalTarget);
@@ -96,39 +157,52 @@ function openFileBeneathRoot(root: string, target: string): { fd: number; descri
const fileName = components.pop();
if (fileName === undefined) throw new Error('managed file path names the managed root');
const rootChain = openDirectoryChain(canonicalRoot);
// stack#1380: resolve-then-validate. The lexical path must name the managed
// root (above); symlink components are then resolved hop-by-hop under the
// sanctioned roots (validated per hop), and the descriptor traversal walks
// the symlink-free real path — keeping the O_NOFOLLOW chain as the race
// guard for anything substituted after resolution.
let realRoot: string;
try {
realRoot = resolveRealPath(canonicalRoot, [canonicalRoot]);
} catch (error) {
throw secureFilesystemError(
'secure descriptor traversal failed: symbolic link, unavailable, or not a directory',
error,
);
}
const sanctioned = [realRoot, ...symlinkTargetRoots.map((extra) => resolve(extra))];
let realTarget: string;
try {
realTarget = resolveRealPath(canonicalTarget, sanctioned);
} catch (error) {
if (error instanceof Error && !('code' in error)) throw error;
throw secureFilesystemError(
'secure descriptor traversal failed: symbolic link, unavailable, or not a directory',
error,
);
}
if (!sanctioned.some((sr) => containedUnder(sr, realTarget) || resolve(sr) === realTarget)) {
throw new Error(
`resolved path escapes managed roots [${sanctioned.join(', ')}]: ${realTarget}`,
);
}
const chain = openDirectoryChain(dirname(realTarget));
try {
let parentFd = rootChain.fd;
for (const component of components) {
try {
parentFd = openSync(
procDescriptorPath(parentFd, component),
constants.O_RDONLY | constants.O_DIRECTORY | constants.O_NOFOLLOW,
);
} catch (error) {
throw secureFilesystemError(
'path ancestor is a symbolic link, unavailable, or not a directory',
error,
);
}
rootChain.descriptors.push(parentFd);
if (!fstatSync(parentFd).isDirectory()) {
throw new Error('path ancestor is a symbolic link or not a directory');
}
}
let fd: number;
try {
fd = openSync(
procDescriptorPath(parentFd, fileName),
procDescriptorPath(chain.fd, basename(realTarget)),
constants.O_RDONLY | constants.O_NONBLOCK | constants.O_NOFOLLOW,
);
} catch (error) {
throw secureFilesystemError('file is a symbolic link or unavailable', error);
}
rootChain.descriptors.push(fd);
return { fd, descriptors: rootChain.descriptors };
chain.descriptors.push(fd);
return { fd, descriptors: chain.descriptors };
} catch (error) {
closeDescriptors(rootChain.descriptors);
closeDescriptors(chain.descriptors);
if (error instanceof Error) throw error;
throw new Error('secure managed file open failed');
}
@@ -203,7 +277,7 @@ export function readRegularFileSecure(
path: string,
options: SecureFileReadOptions,
): SecureFileSnapshot {
const openedFile = openFileBeneathRoot(options.root, path);
const openedFile = openFileBeneathRoot(options.root, path, options.symlinkTargetRoots ?? []);
try {
const opened = fstatSync(openedFile.fd);
if (!opened.isFile()) throw new Error('managed file is not a regular file');
@@ -168,7 +168,9 @@ describe('repairFleetCommsTools', () => {
const result = repairFleetCommsTools(framework, home);
expect(result).toMatchObject({ ok: false, changed: false });
expect(result.reason).toContain('symbolic link');
// stack#1380: resolve-then-validate — an escaping symlink is still
// refused, with the new escape diagnostic.
expect(result.reason).toContain('symlink target escapes managed roots');
expect(readFileSync(target, 'utf8')).toBe('do not touch\n');
expect(lstatSync(join(home, 'tools', 'tmux', 'agent-send.sh')).isSymbolicLink()).toBe(true);
});
@@ -222,7 +224,10 @@ describe('repairFleetCommsTools', () => {
const result = repairFleetCommsTools(framework, targetHome);
expect(result, testCase.name).toMatchObject({ ok: false, changed: false });
expect(result.reason, testCase.name).toContain('symbolic link');
// stack#1380: escaping ancestor symlinks stay refused. The home case is
// caught by the managed-root guard ('is a symbolic link'); deeper
// components by resolve-then-validate ('symlink target escapes').
expect(result.reason, testCase.name).toMatch(/symbolic link|symlink target escapes/);
expect(readdirSync(external), testCase.name).toEqual([]);
}
});