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b1de6f8d38
5 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
| b1de6f8d38 |
Take the geofence out of YouTube's reach, and pin infakt on
Leaving the house was an off switch. The AWAY branch returned early with packagesToShow = every installed package, so walking 150m from home restored YouTube -- which is the exact affordance device owner was provisioned to remove. always_blocked_packages is exempt from all four branches: AWAY hides them, the allowlist loop cannot show them, and the workout release skips them, because otherwise "go for a run" is the off switch instead. Chrome is included as a second route to the same content; Firefox stays, and carries the uBlock filters. Play is deliberately left geofenced so apps can still be installed away from home -- and a hidden package cannot be reinstalled from Play anyway. infakt moves from the allowlist to SYSTEM_NEVER_DISABLE. Allowlisting only held while it stayed in BOTH the day and night lists, and dropping it from either would silently make it hideable; isAllowed() consults the never-disable list before the curfew split, so it now holds under every condition. It is device-paired to a bank over SMS, so losing it strands the same re-authentication chain a hidden Messages app would. The exporter now refuses an always-blocked package that is not also blockable: the runner filters unopted system packages out of installedPackages, so such an entry would never be hidden and nothing would say so. Verified: 128 Python tests at 100% branch coverage, 16 Kotlin tests, the new ones canary-checked by breaking an assertion and confirming the suite actually fails. On device, youtube/music/chrome/vending are hidden=true, infakt hidden=false, uninstall still refused. The AWAY path itself is unit-tested but NOT verified on hardware: with no home_location.json every pass decides LOCATION_UNKNOWN, so the branch is unreachable on this phone until coordinates can be provisioned. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014DqEd1uUhyT52KjaNeLanC |
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| eeaf9590da |
Let the sweep hide preinstalled apps, one named package at a time
The Device Owner sweep skipped every FLAG_SYSTEM package, which meant it could not touch the apps it exists to block: YouTube ships at /product/app/YouTube as a system app, and so does Chrome. Deleting the filter is not the fix. Measured on the Pixel 6a, that would expose 320 system packages of which 243 match no allowlist entry and no never_disable_prefix -- including com.android.cellbroadcastreceiver (emergency alerts), com.android.credentialmanager and com.android.devicelockcontroller. So system apps stay default-deny and blockable_system_packages is the opt-in. com.android.vending is on the list deliberately: leaving Play reachable makes every other removal a one-tap undo. The list lives in the Python exporter rather than config.sh because it is a safety boundary, and a shell typo should not be able to widen it. The exporter subtracts anything already allowed, so an asset can never state that a package is both allowed and blockable. Kotlin reads the field with a new optionalStringSet: an asset predating the field parses to the empty set instead of throwing, because a throw makes decide() skip the pass and silently disable enforcement. Verified on-device under a profile owner: hid 1 for YouTube, restored 1 when temporarily allowed, and cellbroadcastreceiver, credentialmanager, devicelockcontroller and settings all left hidden=false. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014DqEd1uUhyT52KjaNeLanC |
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| f33fd03a16 |
focus_owner: keep the unhide path reachable, never hide the enforcer
setApplicationHidden drops a package from the default PackageManager enumeration even though it stays installed=true, so a sweep querying with flags 0 could never see anything it had already hidden. That made packagesToShow permanently empty: measured on device, a pass following one that hid three apps reported "hid 0, restored 0" and left them hidden with no way back. Query with MATCH_UNINSTALLED_PACKAGES instead. Hiding the enforcer itself is the other unrecoverable case, since it takes the escape hatch and the trigger with it. The exporter now injects com.kuhy.focus_owner into both the day and night allowlists so the decision layer cannot propose it, and the runner keeps its point-of-use skip to cover a policy asset rendered before this fix or hand-edited. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YQLwdquDCNmWtvgi3Lk72J |
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| e3d5e1dd18 |
Serve the blocklist over DoT and hand the policy to the app as an asset
Two gaps stopped the unrooted path working end to end. The phone had no way to read the focus policy, and the blocklist was only reachable as a hosts file or over plain UDP/53 on the LAN -- while the rooted enforcer actively rejected every DoT connection, so a self-hosted resolver could not have worked even if one existed. focus_owner now loads a generated policy.json instead of hardcoding anything, so config.sh stays the single source of truth across Python, shell and Kotlin. The committed asset is rendered with --redact-home and a test fails if home coordinates ever appear in it. An unknown schema_version is rejected outright: silently accepting a newer schema means enforcing a policy the app has misread, and a misread allowlist is one that blocks the dialer. dns_enforcer.sh rejected ALL port 853 traffic and pinned Private DNS off, every 20 seconds. That is right when DoT is a bypass channel and exactly wrong when DoT is the enforcement channel, which is what an unrooted phone needs -- it has no hosts file to fall back to. With DNS_TRUSTED_DOT_HOST set it now ACCEPTs the trusted resolver before the blanket REJECT, and pins Private DNS to that hostname so the user cannot pick an unfiltered one. Rule order is load-bearing: iptables takes the first match, so an ACCEPT appended after the REJECT would never be reached. expected_rule_count() counts the new rules, because a mismatch there makes chain_intact() rebuild the chain every 20s -- a silent fork storm that also drops the connection each time. With the variable empty the behaviour is byte-identical, so the rooted phone is untouched until this is deployed. setup_dot_resolver.sh terminates DoT with stunnel rather than Caddy: DoT is a raw TLS stream and stock caddy:2.8 has no layer4 module, so using Caddy would have meant an xcaddy rebuild of a container serving five live sites. It reuses the certificate Caddy already renews, so nothing competes for port 80. It binds to the WireGuard address, not 0.0.0.0 -- a public DoT endpoint is an open resolver, and over the existing tunnel it needs no port-forward, no firewall rule and no rate limiting. Verified: example.com resolves, pornhub.com returns 0.0.0.0, TLS 1.3 against the LE cert, and both the LAN and public addresses refuse. The Device Owner checklist is planning only. Checking the device rather than the config settled the one open risk: Google Wallet is not installed and no NFC payment default is set, so the unconfirmable tap-to-pay question does not apply here. The same check found that Aegis, MS Authenticator, Oracle IDM and PKO IKO are absent -- they are in config.sh's whitelist, which describes the rooted phone, not this one. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AwepyL5Lxs5QKbKkMpxxxL |
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| f636d2b21b |
Make focus policy and blocklist usable without root; fix workout CDN unblock
phone_focus_mode is built for a rooted phone: the hosts layer is a read-only
bind mount over /system/etc/hosts, chosen so that even root-in-a-terminal
cannot overwrite it. None of that ports to a stock locked device. This splits
out the parts that are device-independent so one policy can drive both.
python_pkg/focus_policy parses config.sh rather than copying it, so the shell
config stays the source of truth and the two cannot drift. It rejects the
shipped REDACTED_* coordinate placeholder instead of defaulting to (0,0),
which would move "home" to the Atlantic and quietly disable the location gate.
blocklist.py converts the hosts file to domains for a DoT resolver or a local
VpnService. Three properties of the real 194k-line file make the obvious parser
wrong, and all three are handled: generate_hosts_file.sh *comments out*
deliberate unblocks rather than deleting them, so stripping '#' re-blocks
facebook/messenger/linkedin/4chan; the StevenBlack header carries loopback and
IPv6 housekeeping that would blackhole localhost; and ~1060 upstream annotation
tokens ('#[adware.zeno]', '"spam') render as address=/"spam/, which makes
dnsmasq refuse to start -- taking DNS down rather than blocking anything.
Verified with dnsmasq --test over all 185681 generated domains.
strip_workout_hosts.py had the same class of bug on the live rooted phone:
exact set membership meant the allowlisted googlevideo.com never matched the
dynamic r*---sn-*.googlevideo.com hosts YouTube actually streams from, so the
workout unblock was only partly working. Now suffix-matched (17 lines stripped,
was 14). The three new tests were checked against the original code in a
throwaway worktree; two of them fail there, so they pin the fix rather than
passing vacuously.
focus_owner is a device-owner app that deliberately does nothing yet. It ships
clearDeviceOwnerApp() implemented and tested first, because dpm
remove-active-admin does not work on a device owner: an app that locks the
device down before proving it can let go leaves a soft-brick recoverable only
through fastboot on a locked bootloader. Built, installed and launched on the
Pixel 6a; dumpsys afterwards confirms Device Owner Type -1 and no user
restrictions, i.e. the phone is unchanged.
Measured while scoping this, and not yet reflected in any enforcement code:
on Android 16 both pm suspend and pm disable-user are cleared by a reboot, so
shell-level app blocking is per-session only. setApplicationHidden is assumed
to persist under Device Owner but is untested.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AwepyL5Lxs5QKbKkMpxxxL
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