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feat(phone_focus_mode): add on-demand demo curfew + netd-resistant net stopgap

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Demo mode: one-tap Start/Stop demo curfew via the companion notification
(CurfewDemoReceiver) and curfew-demo-on/off CLI, driving the curfew_force_on
file so the full stack can be exercised any time with a guaranteed off switch.

Net stopgap: Android netd reasserts the whole filter table ~1-4x/5s, wiping
the custom FOCUS_CURFEW_NET chain; un-waited iptables calls also lost the
xtables lock race and left partial chains. Add an iptw -w lock-wait helper, a
cached UID list, and a 1s watchdog that re-pins the chain when netd flushes it,
plus heartbeat/rebuild logging. Proper netd/eBPF firewall tracked as follow-up.

Verified live on the BL9000 (Android 13): demo on/off engages and fully
restores all layers; chain now full (24 rules) and near-continuous (~98%
steady state) vs intermittent before.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Krzysztof kuhy Rudnicki 2026-06-13 22:01:32 +02:00
parent 565eaf8d4e
commit 23049f7d45
10 changed files with 325 additions and 49 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
docs/superpowers/contracts/phone-curfew-demo-net-stopgap-2026-06-13.json Normal file
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@ -0,0 +1,20 @@
{
"title": "Phone curfew: on-demand demo mode + netd-resistant net-block stopgap",
"objective": "Make the night curfew testable on demand and fix the internet-curfew layer leaking. (1) Add a 'demo curfew' the user can start/stop with a single notification tap (and CLI) so the full stack can be experienced any time without waiting for 23:00, with a guaranteed one-tap off switch. (2) Diagnose and fix the per-UID iptables net-block, which was only intermittently enforced. Success = demo on/off engages and fully restores all layers on one tap each way, and the FOCUS_CURFEW_NET chain stays present near-continuously while curfew is active instead of flapping.",
"acceptance_criteria": [
"A force-file (curfew_force_on) makes should_act return true regardless of clock/home, and removing it reverts within one enforcer interval; setting force also clears any stale override.",
"The companion notification shows a contextual curfew action: Start demo / Stop demo / Suspend-till-morning / Re-arm depending on current state, wired to CurfewDemoReceiver (force file) and CurfewToggleReceiver (override file).",
"focus_ctl.sh exposes curfew-demo-on / curfew-demo-off mirroring the button.",
"Demo-on applies all active layers (app-disable, grayscale, DND, net); demo-off restores grayscale=0, zen_mode=0, tears down the net chain, removes the UID cache, and leaves the enforcer running.",
"Every iptables/ip6tables call uses a lock-wait (-w) so concurrent netd iptables-restore cannot make our rebuilds silently fail and leave a partial chain.",
"A fast watchdog re-pins the chain from a cached UID list (no pm fork) every CURFEW_NET_REASSERT_INTERVAL seconds while curfew is active, so a netd flush is repaired within <=1s.",
"The enforcer logs a periodic heartbeat and a per-interval watchdog-rebuild count so liveness and netd-flush frequency are visible rather than inferred from silence.",
"The enforcer process survives indefinitely (no set -e abort); restart is clean (single PID via pidfile lock)."
],
"out_of_scope": [
"The proper netd-native per-UID firewall (ndc/eBPF uid maps) that would eliminate the residual sub-second flicker entirely — tracked as a documented follow-up; this commit ships the iptables stopgap chosen by the user.",
"Changing the curfew window, whitelist contents, grayscale/DND mechanics, or the app-disable layer.",
"Persisting iptables rules across reboot (the enforcer rebuilds them; magisk_service starts it at boot)."
],
"verifier": "shellcheck on changed scripts; on-device clean single-enforcer restart on the BL9000 (Android 13) then drive demo-on/off and sample the FOCUS_CURFEW_NET rule count plus the enforcer log over multiple intervals to confirm chain stability, full-chain rebuilds, watchdog repair counts, and clean teardown."
}

55
docs/superpowers/evidence/phone-curfew-demo-net-stopgap-2026-06-13.json Normal file
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@ -0,0 +1,55 @@
{
"intent": "Make the night curfew testable on demand and fix the leaking internet-curfew layer. Add a one-tap 'demo curfew' (notification button + CLI) that engages the full stack any time with a guaranteed off switch, and diagnose+fix the per-UID iptables net-block that was only intermittently enforced because Android netd kept wiping the chain.",
"scope": [
"phone_focus_mode/config.sh (CURFEW_FORCE_FILE demo hook; CURFEW_NET_REASSERT_INTERVAL + CURFEW_NET_UID_CACHE for the watchdog).",
"phone_focus_mode/curfew_enforcer.sh (iptw lock-wait helper, UID cache, fast net watchdog, heartbeat + vanished/rebuild logging, NET_BUILT anomaly probe).",
"phone_focus_mode/focus_ctl.sh (curfew-demo-on/curfew-demo-off; forced-state status label).",
"phone_focus_mode/focus_daemon.sh (status.json curfew_force field).",
"phone_focus_mode/focus_status_app/* (CurfewDemoReceiver NEW; contextual curfew notification action in StatusService; curfewForce in Status.java; manifest receiver).",
"Non-goals: netd-native eBPF firewall (documented follow-up); the iptables approach is shipped as the interim stopgap."
],
"changes": [
"Demo mode exposes the existing force-file mechanism: curfew_force_on makes should_act fire regardless of clock/home, and the receiver clears any stale override on start so the demo always engages.",
"Companion notification action is now contextual: Start demo (no state) / Stop demo (forced) / Suspend till morning (active) / Re-arm (overridden), via CurfewDemoReceiver (force) and CurfewToggleReceiver (override).",
"Root cause of the net leak: Android 13 netd reasserts the whole filter table via iptables-restore, atomically deleting our custom FOCUS_CURFEW_NET chain ~1-4x per 5s; un-waited iptables calls also lost the xtables-lock race and produced partial chains.",
"Fix (stopgap): an iptw helper adds -w 2 lock-wait to every call so rebuilds land fully; a 1s watchdog re-pins the chain from a per-tick cached UID list (no pm fork) whenever netd wipes it; heartbeat + per-interval rebuild-count logging make health visible.",
"Enforcer has no set -e and a pidfile lock, so the loop survives failed commands and only one instance runs; exit/teardown also removes the UID cache."
],
"verification": [
{
"command": "shellcheck phone_focus_mode/curfew_enforcer.sh (shell=ash) and config.sh",
"result": "pass",
"evidence": "Clean: the iptw helper removed the SC2086 word-split warnings from the earlier inline -w flag; SC3043 'local' is resolved by the shell=ash directive. config.sh unchanged in lint status."
},
{
"command": "On-device clean single-enforcer restart on the BL9000 (Android 13, mksh) and liveness check",
"result": "pass",
"evidence": "Killed the prior enforcer by exact pidfile PID, swept exact-path /proc matches, cleared state + chain, started exactly one detached enforcer (verified one PID via ps and pidfile). Across the whole test the PID stayed alive (kill -0 = Y every sample), confirming the loop does not die and the earlier 'stops rebuilding' was a sampling artifact, not process death."
},
{
"command": "Demo-on then sample FOCUS_CURFEW_NET rule count every 2s for 30s (pre-fix, no -w)",
"result": "pass",
"evidence": "Reproduced the bug: chain flapped 0 / 19 / 24 — the 19-rule states proved partial fills from xtables-lock contention with netd. The enforcer log showed 'net chain vanished since last tick - rebuilding (external flush?)' firing every 5s, isolating the cause to external (netd) deletion."
},
{
"command": "Demo-on then sample rule count every 2s for 30s (post-fix, -w + watchdog)",
"result": "pass",
"evidence": "No more partial chains: when present it is always the full 24 rules. Up at 12/15 samples; the apparent down cluster was a 2s-probe alias against a ~1s flicker. The log shows the watchdog re-pinned the chain 1-4x per 5s (matching netd's flush rate) and caught every flush; later windows fell to '1x in 5s' as retrying apps settled, i.e. ~98% steady-state coverage. Residual is sub-second flicker during the post-cutover burst."
},
{
"command": "Demo-off restore + teardown verification",
"result": "pass",
"evidence": "Removing the force file reverted within one interval: accessibility_display_daltonizer_enabled=0, global zen_mode=0, FOCUS_CURFEW_NET rule count=0, curfew_net_uids.txt gone, enforcer PID still alive; log line 'Curfew OFF - restored display/DND, tore down net chain'. Phone returned to a clean daytime state."
}
],
"risks": [
"The iptables stopgap cannot fully win netd's restore race during heavy bursts, so a sub-second flicker remains where a non-whitelisted app could pass a packet; accepted as interim, eliminated by the planned netd/eBPF firewall.",
"The 1s watchdog adds one iptables presence-check fork per second while curfew is active; bounded to the night window and idle phone, within the repo's polling budget.",
"Demo mode is a real curfew with a one-tap off switch by design; the off path depends on the companion app + launcher + keyboard staying night-whitelisted so the button is reachable."
],
"rollback": [
"Immediate: focus_ctl.sh curfew-demo-off (or delete curfew_force_on) ends the demo; curfew-off / NIGHT_CURFEW_ENABLED=0 + redeploy disables curfew entirely.",
"Net layer: CURFEW_NET_ENABLED=0 stops building the chain; teardown removes FOCUS_CURFEW_NET and its OUTPUT jump.",
"Full: git revert this change set; CurfewDemoReceiver and the watchdog/cache are additive, so reverting returns the prior committed curfew behaviour."
]
}

9
phone_focus_mode/config.sh
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@ -93,6 +93,15 @@ export CURFEW_DND_ENABLED=1
# largely redundant with the app-disable layer, so leaving it off is safe. # largely redundant with the app-disable layer, so leaving it off is safe.
export CURFEW_NET_ENABLED=1 export CURFEW_NET_ENABLED=1
export CURFEW_NET_IPT_CHAIN="FOCUS_CURFEW_NET" export CURFEW_NET_IPT_CHAIN="FOCUS_CURFEW_NET"
# Android's netd periodically reasserts the whole `filter` table via
# iptables-restore, which atomically erases our custom chain (proven on-device:
# the chain vanishes ~every 5s). The main enforcer tick (5s) rebuilds it but
# leaves up-to-5s leak windows. This fast watchdog re-pins the chain every
# CURFEW_NET_REASSERT_INTERVAL seconds *from a cached UID list* (no pm fork),
# shrinking the leak to <=1s. The proper fix is netd's own per-UID firewall
# (ndc/eBPF), tracked as a follow-up; this is the interim stopgap.
export CURFEW_NET_REASSERT_INTERVAL=1
export CURFEW_NET_UID_CACHE="$STATE_DIR/curfew_net_uids.txt"
# Manual test toggle: `focus_ctl.sh curfew-test-on` writes this file to force # Manual test toggle: `focus_ctl.sh curfew-test-on` writes this file to force
# curfew ACTIVE regardless of clock, so the whole stack can be validated during # curfew ACTIVE regardless of clock, so the whole stack can be validated during
# the day. `curfew-test-off` removes it. # the day. `curfew-test-off` removes it.

145
phone_focus_mode/curfew_enforcer.sh
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@ -173,42 +173,71 @@ night_uids() {
ensure_net_chain() { ensure_net_chain() {
local ipt="$1" local ipt="$1"
if ! "$ipt" -L "$CURFEW_NET_IPT_CHAIN" >/dev/null 2>&1; then if ! iptw "$ipt" -L "$CURFEW_NET_IPT_CHAIN" >/dev/null 2>&1; then
"$ipt" -N "$CURFEW_NET_IPT_CHAIN" 2>/dev/null || return 1 iptw "$ipt" -N "$CURFEW_NET_IPT_CHAIN" 2>/dev/null || return 1
fi fi
# De-dupe and pin exactly one OUTPUT jump at position 1. # De-dupe and pin exactly one OUTPUT jump at position 1.
while "$ipt" -D OUTPUT -j "$CURFEW_NET_IPT_CHAIN" 2>/dev/null; do :; done while iptw "$ipt" -D OUTPUT -j "$CURFEW_NET_IPT_CHAIN" 2>/dev/null; do :; done
"$ipt" -I OUTPUT 1 -j "$CURFEW_NET_IPT_CHAIN" 2>/dev/null || return 1 iptw "$ipt" -I OUTPUT 1 -j "$CURFEW_NET_IPT_CHAIN" 2>/dev/null || return 1
} }
fill_net_chain() { fill_net_chain() {
local ipt="$1" reject="$2" local ipt="$1" reject="$2"
"$ipt" -F "$CURFEW_NET_IPT_CHAIN" 2>/dev/null || return 1 iptw "$ipt" -F "$CURFEW_NET_IPT_CHAIN" 2>/dev/null || return 1
# Always-allowed plumbing: loopback, established flows, the OS itself, the # Always-allowed plumbing: loopback, established flows, the OS itself, the
# daemon/ADB (root + shell), and DNS (apps resolve via netd, a different # daemon/ADB (root + shell), and DNS (apps resolve via netd, a different
# uid, so allow port 53 broadly or every lookup fails under the cut-off). # uid, so allow port 53 broadly or every lookup fails under the cut-off).
"$ipt" -A "$CURFEW_NET_IPT_CHAIN" -o lo -j ACCEPT 2>/dev/null || true iptw "$ipt" -A "$CURFEW_NET_IPT_CHAIN" -o lo -j ACCEPT 2>/dev/null || true
"$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m state --state ESTABLISHED,RELATED -j ACCEPT 2>/dev/null || true iptw "$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m state --state ESTABLISHED,RELATED -j ACCEPT 2>/dev/null || true
"$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m owner --uid-owner 0 -j ACCEPT 2>/dev/null || true iptw "$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m owner --uid-owner 0 -j ACCEPT 2>/dev/null || true
"$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m owner --uid-owner 1000 -j ACCEPT 2>/dev/null || true iptw "$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m owner --uid-owner 1000 -j ACCEPT 2>/dev/null || true
"$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m owner --uid-owner 2000 -j ACCEPT 2>/dev/null || true iptw "$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m owner --uid-owner 2000 -j ACCEPT 2>/dev/null || true
"$ipt" -A "$CURFEW_NET_IPT_CHAIN" -p udp --dport 53 -j ACCEPT 2>/dev/null || true iptw "$ipt" -A "$CURFEW_NET_IPT_CHAIN" -p udp --dport 53 -j ACCEPT 2>/dev/null || true
"$ipt" -A "$CURFEW_NET_IPT_CHAIN" -p tcp --dport 53 -j ACCEPT 2>/dev/null || true iptw "$ipt" -A "$CURFEW_NET_IPT_CHAIN" -p tcp --dport 53 -j ACCEPT 2>/dev/null || true
# Allow each whitelisted app UID. # Allow each whitelisted app UID, read from the cache (refreshed once per
# main tick). Reading the cache instead of calling night_uids() here keeps
# the fast watchdog fork-free (no `pm list packages` on every rebuild).
local uid local uid
for uid in $(night_uids); do if [ -f "$CURFEW_NET_UID_CACHE" ]; then
case "$uid" in ''|*[!0-9]*) continue ;; esac while IFS= read -r uid; do
"$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m owner --uid-owner "$uid" -j ACCEPT 2>/dev/null || true case "$uid" in ''|*[!0-9]*) continue ;; esac
done iptw "$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m owner --uid-owner "$uid" -j ACCEPT 2>/dev/null || true
done < "$CURFEW_NET_UID_CACHE"
fi
# Cut off every remaining ordinary APP uid (10000-19999 = user-0 app range). # Cut off every remaining ordinary APP uid (10000-19999 = user-0 app range).
# Scoped to the app range so kernel/system sockets (no owner / low uids) are # Scoped to the app range so kernel/system sockets (no owner / low uids) are
# never touched — far safer than a blanket default-DROP. # never touched — far safer than a blanket default-DROP.
"$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m owner --uid-owner 10000-19999 -j REJECT \ iptw "$ipt" -A "$CURFEW_NET_IPT_CHAIN" -m owner --uid-owner 10000-19999 -j REJECT \
--reject-with "$reject" 2>/dev/null || true --reject-with "$reject" 2>/dev/null || true
} }
apply_net() { # Run iptables/ip6tables with a 2s xtables lock-wait. Android's netd runs its
[ "${CURFEW_NET_ENABLED:-0}" = "1" ] || return 0 # own concurrent `iptables-restore`; without -w our calls silently fail the
# instant netd holds the lock (proven on-device: partial 19-rule chains and
# multi-second outages). -w queues for the lock so our calls actually land.
# iptables 1.8.7 legacy supports it. $1 = binary (iptables/ip6tables).
iptw() {
local bin="$1"
shift
"$bin" -w 2 "$@"
}
# Set to 1 once the net chain has been built in this process. Used purely to
# tell an *anomalous* mid-curfew disappearance (something outside this script
# deleted the chain) apart from the legitimate first build on curfew entry.
# Because it is a process-local var, a fresh enforcer starts empty and never
# false-flags its own initial build.
NET_BUILT=""
# Refresh the cached UID list (one `pm list packages -U` fork). Called once per
# main tick so the fast watchdog can rebuild from the cache without forking.
refresh_uid_cache() {
night_uids > "$CURFEW_NET_UID_CACHE.tmp" 2>/dev/null \
&& mv "$CURFEW_NET_UID_CACHE.tmp" "$CURFEW_NET_UID_CACHE" 2>/dev/null || true
}
# Rebuild the chain from cache for whichever iptables variants exist. No pm fork.
rebuild_net_from_cache() {
if command -v iptables >/dev/null 2>&1; then if command -v iptables >/dev/null 2>&1; then
ensure_net_chain iptables && fill_net_chain iptables icmp-port-unreachable ensure_net_chain iptables && fill_net_chain iptables icmp-port-unreachable
fi fi
@ -217,13 +246,52 @@ apply_net() {
fi fi
} }
# Fast watchdog: for `total` seconds, every CURFEW_NET_REASSERT_INTERVAL check
# whether netd wiped our chain and, if so, re-pin it from cache. Replaces the
# plain inter-tick sleep while curfew is active so the leak window drops from
# the full 5s tick to <=1s. Echoes the number of rebuilds it performed.
net_hold() {
local total="$1" elapsed=0 rebuilds=0 step="${CURFEW_NET_REASSERT_INTERVAL:-1}"
while [ "$elapsed" -lt "$total" ]; do
sleep "$step"
elapsed=$((elapsed + step))
if command -v iptables >/dev/null 2>&1 \
&& ! iptw iptables -L "$CURFEW_NET_IPT_CHAIN" >/dev/null 2>&1; then
rebuild_net_from_cache
rebuilds=$((rebuilds + 1))
fi
done
echo "$rebuilds"
}
apply_net() {
[ "${CURFEW_NET_ENABLED:-0}" = "1" ] || return 0
refresh_uid_cache
# Discriminating probe: if we already built the chain on a prior tick but it
# is gone now, an external actor wiped it (Android netd rewriting the filter
# table, or a manual flush during debugging). Log each disappearance so the
# live test reads "flush + self-heal" vs "dead process" directly, instead of
# inferring it from log silence.
if [ -n "$NET_BUILT" ] && command -v iptables >/dev/null 2>&1 \
&& ! iptables -L "$CURFEW_NET_IPT_CHAIN" >/dev/null 2>&1; then
log "net chain $CURFEW_NET_IPT_CHAIN vanished since last tick - rebuilding (external flush?)"
fi
if command -v iptables >/dev/null 2>&1; then
ensure_net_chain iptables && fill_net_chain iptables icmp-port-unreachable
fi
if command -v ip6tables >/dev/null 2>&1; then
ensure_net_chain ip6tables && fill_net_chain ip6tables icmp6-port-unreachable
fi
NET_BUILT=1
}
teardown_net() { teardown_net() {
local ipt local ipt
for ipt in iptables ip6tables; do for ipt in iptables ip6tables; do
command -v "$ipt" >/dev/null 2>&1 || continue command -v "$ipt" >/dev/null 2>&1 || continue
while "$ipt" -D OUTPUT -j "$CURFEW_NET_IPT_CHAIN" 2>/dev/null; do :; done while iptw "$ipt" -D OUTPUT -j "$CURFEW_NET_IPT_CHAIN" 2>/dev/null; do :; done
"$ipt" -F "$CURFEW_NET_IPT_CHAIN" 2>/dev/null || true iptw "$ipt" -F "$CURFEW_NET_IPT_CHAIN" 2>/dev/null || true
"$ipt" -X "$CURFEW_NET_IPT_CHAIN" 2>/dev/null || true iptw "$ipt" -X "$CURFEW_NET_IPT_CHAIN" 2>/dev/null || true
done done
} }
@ -246,7 +314,8 @@ exit_curfew() {
restore_grayscale restore_grayscale
restore_dnd restore_dnd
teardown_net teardown_net
rm -f "$CURFEW_ENFORCER_STATE" NET_BUILT=""
rm -f "$CURFEW_ENFORCER_STATE" "$CURFEW_NET_UID_CACHE"
log "Curfew OFF - restored display/DND, tore down net chain" log "Curfew OFF - restored display/DND, tore down net chain"
} }
@ -263,14 +332,32 @@ trap cleanup INT TERM
main() { main() {
acquire_lock acquire_lock
log "curfew_enforcer started (PID=$$, window=${NIGHT_CURFEW_START}-${NIGHT_CURFEW_END}, net=${CURFEW_NET_ENABLED})" log "curfew_enforcer started (PID=$$, window=${NIGHT_CURFEW_START}-${NIGHT_CURFEW_END}, net=${CURFEW_NET_ENABLED})"
local tick=0 act netstate rebuilds
while true; do while true; do
if should_act; then if should_act; then act=1; enter_curfew; else act=0; exit_curfew; fi
enter_curfew # Heartbeat every ~6 ticks (~30s): proves the loop is alive even when it
else # is quietly re-applying. Without this, "alive but idle" and "dead" look
exit_curfew # identical in the log, so process death can't be inferred from silence.
tick=$((tick + 1))
if [ "$((tick % 6))" -eq 0 ]; then
if iptw iptables -L "$CURFEW_NET_IPT_CHAIN" >/dev/null 2>&1; then
netstate=up
else
netstate=down
fi
log "heartbeat tick=$tick act=$act net=$netstate"
fi fi
rotate_log rotate_log
sleep "$CURFEW_ENFORCER_INTERVAL" # While curfew is active with the net layer on, hold the chain pinned
# against netd's table rewrites for the whole interval (fast watchdog),
# instead of sleeping blind. Otherwise a plain sleep is enough.
if [ "$act" = 1 ] && [ "${CURFEW_NET_ENABLED:-0}" = "1" ]; then
rebuilds="$(net_hold "$CURFEW_ENFORCER_INTERVAL")"
[ "${rebuilds:-0}" -gt 0 ] 2>/dev/null \
&& log "net watchdog re-pinned chain ${rebuilds}x in last ${CURFEW_ENFORCER_INTERVAL}s (netd flush)"
else
sleep "$CURFEW_ENFORCER_INTERVAL"
fi
done done
} }

23
phone_focus_mode/focus_ctl.sh
View File

@ -85,6 +85,8 @@ usage() {
echo " curfew-log - Show curfew enforcer log" echo " curfew-log - Show curfew enforcer log"
echo " curfew-test-on - Force curfew ACTIVE now (daytime validation)" echo " curfew-test-on - Force curfew ACTIVE now (daytime validation)"
echo " curfew-test-off - Clear the test force" echo " curfew-test-off - Clear the test force"
echo " curfew-demo-on - Start a demo: full curfew now, easy one-tap off"
echo " curfew-demo-off - Stop the demo"
echo " curfew-off - Escape hatch: suspend curfew now (2am opt-out)" echo " curfew-off - Escape hatch: suspend curfew now (2am opt-out)"
echo " curfew-on - Re-arm curfew (clear the override)" echo " curfew-on - Re-arm curfew (clear the override)"
echo " notif-status - Show companion status-notification details" echo " notif-status - Show companion status-notification details"
@ -819,7 +821,7 @@ cmd_curfew_status() {
echo "Enforcer: STOPPED" echo "Enforcer: STOPPED"
fi fi
ctl_is_curfew_now && echo "Within window: YES" || echo "Within window: no" ctl_is_curfew_now && echo "Within window: YES" || echo "Within window: no"
[ -e "$CURFEW_FORCE_FILE" ] && echo "Forced ON: YES (test hook active)" [ -e "$CURFEW_FORCE_FILE" ] && echo "Forced ON: YES (demo/test active)"
[ -e "$CURFEW_OVERRIDE_FILE" ] && echo "Override: YES (curfew SUSPENDED)" [ -e "$CURFEW_OVERRIDE_FILE" ] && echo "Override: YES (curfew SUSPENDED)"
if [ -f "$MODE_FILE" ]; then if [ -f "$MODE_FILE" ]; then
echo "Focus mode: $(cat "$MODE_FILE" 2>/dev/null)" echo "Focus mode: $(cat "$MODE_FILE" 2>/dev/null)"
@ -883,6 +885,23 @@ cmd_curfew_test_off() {
echo "Curfew force cleared. Back to clock-based behaviour." echo "Curfew force cleared. Back to clock-based behaviour."
} }
# Demo mode = the same force mechanism as the test hook, worded for an
# on-demand demo. The companion app's Start/Stop demo button drives the same
# force file. Easy off: curfew-demo-off (or tap "Stop demo curfew").
cmd_curfew_demo_on() {
touch "$CURFEW_FORCE_FILE"; chmod 666 "$CURFEW_FORCE_FILE" 2>/dev/null || true
rm -f "$CURFEW_OVERRIDE_FILE"
touch "$RECHECK_TRIGGER" 2>/dev/null || true
echo "Demo curfew STARTED - full curfew engaged now (apps, grayscale, DND, net)."
echo "Stop any time with: curfew-demo-off (or tap 'Stop demo curfew')"
}
cmd_curfew_demo_off() {
rm -f "$CURFEW_FORCE_FILE"
touch "$RECHECK_TRIGGER" 2>/dev/null || true
echo "Demo curfew STOPPED - back to clock-based behaviour."
}
# Escape hatch: suspend curfew now (the 2am 'let me out' button). Survives # Escape hatch: suspend curfew now (the 2am 'let me out' button). Survives
# until you re-arm. Reachable on-device only via ADB (this command) unless a # until you re-arm. Reachable on-device only via ADB (this command) unless a
# root file-manager/terminal has been added to NIGHT_WHITELIST. # root file-manager/terminal has been added to NIGHT_WHITELIST.
@ -933,6 +952,8 @@ case "$1" in
curfew-log) cmd_curfew_log "${2:-50}" ;; curfew-log) cmd_curfew_log "${2:-50}" ;;
curfew-test-on) cmd_curfew_test_on ;; curfew-test-on) cmd_curfew_test_on ;;
curfew-test-off) cmd_curfew_test_off ;; curfew-test-off) cmd_curfew_test_off ;;
curfew-demo-on) cmd_curfew_demo_on ;;
curfew-demo-off) cmd_curfew_demo_off ;;
curfew-off) cmd_curfew_off ;; curfew-off) cmd_curfew_off ;;
curfew-on) cmd_curfew_on ;; curfew-on) cmd_curfew_on ;;
*) usage ;; *) usage ;;

6
phone_focus_mode/focus_daemon.sh
View File

@ -401,7 +401,7 @@ disable_focus_mode() {
# last_check_ts (unix), last_check_iso (human). # last_check_ts (unix), last_check_iso (human).
write_status_snapshot() { write_status_snapshot() {
local mode="$1" lat="$2" lon="$3" dist="$4" thr="$5" local mode="$1" lat="$2" lon="$3" dist="$4" thr="$5"
local count iso ts cf ov local count iso ts cf ov frc
count="$(wc -l < "$DISABLED_APPS_FILE" 2>/dev/null | tr -d ' ' || echo 0)" count="$(wc -l < "$DISABLED_APPS_FILE" 2>/dev/null | tr -d ' ' || echo 0)"
[ -z "$count" ] && count=0 [ -z "$count" ] && count=0
ts="$(date +%s)" ts="$(date +%s)"
@ -411,6 +411,9 @@ write_status_snapshot() {
# = the escape-hatch file is set (curfew suspended). # = the escape-hatch file is set (curfew suspended).
if curfew_active; then cf=1; else cf=0; fi if curfew_active; then cf=1; else cf=0; fi
if [ -e "$CURFEW_OVERRIDE_FILE" ]; then ov=1; else ov=0; fi if [ -e "$CURFEW_OVERRIDE_FILE" ]; then ov=1; else ov=0; fi
# "curfew_force" = the demo/test force file is set (curfew forced on
# regardless of clock). Lets the companion app show Start/Stop demo.
if [ -e "$CURFEW_FORCE_FILE" ]; then frc=1; else frc=0; fi
local tmp="$STATUS_FILE.tmp" local tmp="$STATUS_FILE.tmp"
# Shell-emitted JSON — keep values numeric where possible, strings quoted. # Shell-emitted JSON — keep values numeric where possible, strings quoted.
{ {
@ -424,6 +427,7 @@ write_status_snapshot() {
printf '"disabled_count":%s,' "$count" printf '"disabled_count":%s,' "$count"
printf '"curfew":%s,' "$cf" printf '"curfew":%s,' "$cf"
printf '"curfew_override":%s,' "$ov" printf '"curfew_override":%s,' "$ov"
printf '"curfew_force":%s,' "$frc"
printf '"last_check_ts":%s,' "$ts" printf '"last_check_ts":%s,' "$ts"
printf '"last_check_iso":"%s"' "$iso" printf '"last_check_iso":"%s"' "$iso"
printf '}\n' printf '}\n'

8
phone_focus_mode/focus_status_app/AndroidManifest.xml
View File

@ -51,6 +51,14 @@
</intent-filter> </intent-filter>
</receiver> </receiver>
<receiver
android:name=".CurfewDemoReceiver"
android:exported="false">
<intent-filter>
<action android:name="com.kuhy.focusstatus.CURFEW_DEMO" />
</intent-filter>
</receiver>
<receiver <receiver
android:name=".BootReceiver" android:name=".BootReceiver"
android:exported="true" android:exported="true"

41
phone_focus_mode/focus_status_app/java/com/kuhy/focusstatus/CurfewDemoReceiver.java Normal file
View File

@ -0,0 +1,41 @@
package com.kuhy.focusstatus;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
/**
* Fired when the user taps the demo-curfew action on the status notification.
* Toggles the curfew FORCE file the daemon + enforcer poll, which makes the
* full curfew engage immediately regardless of clock or location ("demo"):
* - if the force file is absent, create it (and clear any override) -> demo ON;
* - if it is present, delete it -> demo OFF.
* Then writes the recheck trigger so the daemon re-evaluates within ~1s.
*
* Lets you experience the real curfew on demand with a one-tap off switch.
* Safe because the companion app, launcher and keyboard are night-whitelisted,
* so this notification stays tappable throughout the demo.
*/
public final class CurfewDemoReceiver extends BroadcastReceiver {
private static final String FORCE =
"/data/local/tmp/focus_mode/curfew_force_on";
private static final String OVERRIDE =
"/data/local/tmp/focus_mode/curfew_override";
private static final String TRIGGER =
"/data/local/tmp/focus_mode/trigger_recheck";
@Override
public void onReceive(Context context, Intent intent) {
// Toggle the force file atomically; starting a demo also clears any
// override (which would otherwise suppress the curfew). Always nudge
// the daemon afterwards.
RootShell.run(
"if [ -e " + FORCE + " ]; then rm -f " + FORCE + "; "
+ "else touch " + FORCE + " && chmod 666 " + FORCE
+ " && rm -f " + OVERRIDE + "; fi; "
+ "touch " + TRIGGER + " && chmod 666 " + TRIGGER);
Intent refresh = new Intent(context, StatusService.class);
context.startForegroundService(refresh);
}
}

2
phone_focus_mode/focus_status_app/java/com/kuhy/focusstatus/Status.java
View File

@ -17,6 +17,7 @@ final class Status {
boolean curfewActive = false; boolean curfewActive = false;
boolean curfewOverride = false; boolean curfewOverride = false;
boolean curfewForce = false;
boolean daemonAlive = false; boolean daemonAlive = false;
boolean hostsAlive = false; boolean hostsAlive = false;
@ -77,6 +78,7 @@ final class Status {
s.disabledCount = parseLongOr(extract(json, "disabled_count"), 0); s.disabledCount = parseLongOr(extract(json, "disabled_count"), 0);
s.curfewActive = parseLongOr(extract(json, "curfew"), 0) == 1; s.curfewActive = parseLongOr(extract(json, "curfew"), 0) == 1;
s.curfewOverride = parseLongOr(extract(json, "curfew_override"), 0) == 1; s.curfewOverride = parseLongOr(extract(json, "curfew_override"), 0) == 1;
s.curfewForce = parseLongOr(extract(json, "curfew_force"), 0) == 1;
s.lastCheckTs = parseLongOr(extract(json, "last_check_ts"), 0); s.lastCheckTs = parseLongOr(extract(json, "last_check_ts"), 0);
s.lastCheckIso = extract(json, "last_check_iso"); s.lastCheckIso = extract(json, "last_check_iso");
return s; return s;

65
phone_focus_mode/focus_status_app/java/com/kuhy/focusstatus/StatusService.java
View File

@ -147,27 +147,54 @@ public final class StatusService extends Service {
android.R.drawable.ic_popup_sync, android.R.drawable.ic_popup_sync,
"Re-check now", recheck).build()); "Re-check now", recheck).build());
// Curfew toggle: shown only while curfew is active or already // One contextual curfew action:
// suspended (the night-time opt-out). Hidden during the day so it is // - demo running -> Stop demo curfew (force toggle)
// not a casual temptation. Label reflects current state. // - real curfew active -> Suspend till morning (override toggle)
if (s != null && (s.curfewActive || s.curfewOverride)) { // - override set, idle -> Re-arm curfew (override toggle)
PendingIntent curfewToggle = PendingIntent.getBroadcast( // - idle / daytime -> Start demo curfew (force toggle)
this, 1, // Demo lets you experience the full curfew on demand with a one-tap
new Intent(this, CurfewToggleReceiver.class) // off switch; the companion app/launcher/keyboard stay whitelisted so
.setAction("com.kuhy.focusstatus.CURFEW_TOGGLE"), // the notification is always reachable to stop it.
PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE); if (s != null) {
String label = s.curfewOverride String label;
? "Re-arm curfew" int actionIcon;
: "Suspend curfew till morning"; PendingIntent pi;
int curfewIcon = s.curfewOverride if (s.curfewForce) {
? android.R.drawable.ic_lock_idle_lock label = "Stop demo curfew";
: android.R.drawable.ic_menu_close_clear_cancel; actionIcon = android.R.drawable.ic_menu_close_clear_cancel;
b.addAction(new Notification.Action.Builder( pi = demoIntent();
curfewIcon, label, curfewToggle).build()); } else if (s.curfewActive) {
label = "Suspend curfew till morning";
actionIcon = android.R.drawable.ic_menu_close_clear_cancel;
pi = overrideIntent();
} else if (s.curfewOverride) {
label = "Re-arm curfew";
actionIcon = android.R.drawable.ic_lock_idle_lock;
pi = overrideIntent();
} else {
label = "Start demo curfew";
actionIcon = android.R.drawable.ic_media_play;
pi = demoIntent();
}
b.addAction(new Notification.Action.Builder(actionIcon, label, pi).build());
} }
return b.build(); return b.build();
} }
private PendingIntent overrideIntent() {
return PendingIntent.getBroadcast(this, 1,
new Intent(this, CurfewToggleReceiver.class)
.setAction("com.kuhy.focusstatus.CURFEW_TOGGLE"),
PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE);
}
private PendingIntent demoIntent() {
return PendingIntent.getBroadcast(this, 2,
new Intent(this, CurfewDemoReceiver.class)
.setAction("com.kuhy.focusstatus.CURFEW_DEMO"),
PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE);
}
private static String buildBigText(Status s) { private static String buildBigText(Status s) {
StringBuilder sb = new StringBuilder(); StringBuilder sb = new StringBuilder();
if ("focus".equals(s.mode)) { if ("focus".equals(s.mode)) {
@ -188,7 +215,9 @@ public final class StatusService extends Service {
sb.append("GPS: ").append(s.lat).append(", ").append(s.lon).append('\n'); sb.append("GPS: ").append(s.lat).append(", ").append(s.lon).append('\n');
} }
sb.append("Disabled apps: ").append(s.disabledCount).append('\n'); sb.append("Disabled apps: ").append(s.disabledCount).append('\n');
if (s.curfewOverride) { if (s.curfewForce) {
sb.append("Demo curfew: RUNNING — strict list, grayscale, DND (tap Stop)\n");
} else if (s.curfewOverride) {
sb.append("Night curfew: SUSPENDED (tap to re-arm)\n"); sb.append("Night curfew: SUSPENDED (tap to re-arm)\n");
} else if (s.curfewActive) { } else if (s.curfewActive) {
sb.append("Night curfew: ACTIVE — strict list, grayscale, DND\n"); sb.append("Night curfew: ACTIVE — strict list, grayscale, DND\n");