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Nine of the eleven were defects in the suite, two were assertions describing
behaviour the code had deliberately changed. None was a bug in the node.
Seven had one cause. `check_media_tools()` writes two module globals;
`monkeypatch` restores what a test patched and knows nothing about what the
call under test then wrote, so a test that pointed `shutil.which` at
"/opt/bin/{n}.exe" left `_ffprobe_path` there — a Windows path, on Linux — for
the rest of the session. Every later test that actually runs ffprobe died on
FileNotFoundError, in two files about video transcoding, for a reason nowhere
near themselves. Run those files alone and they passed; that is what made it
look like an environment problem for so long.
The autouse `_restore_media_tool_paths` fixture in conftest.py puts both back
after every test. That closes the class, not just this instance: any future test
that resolves media tools is undone whether it remembers to or not, which is the
only way an order-dependent suite stops being one. Verified by removing the
call-site guard entirely and running the whole suite — green, so the fixture is
carrying it, and the call site keeps a pointer rather than a second copy of the
explanation.
The other four:
- two service tests were the only ones in test_platform.py that never set
`sys.platform` to "win32", so they hit "service mode is Windows-only";
- test_apps_enabled_policy expected `["chat"]` where `roster.enabled_apps`
inserts "files" at the front on read (and `ops.set_enabled_apps` on write),
because Settings is the one way back if every app were turned off. The code
is right; the assertion predates the guard, and is now ["files", "chat"];
- test_invite_then_join_delivers_the_gek passed a bare Path as a group's
`roots` two lines below building a RootSet for the transport. The handshake
died on `'PosixPath' object has no attribute 'describe'` and answered `error`
— scaffolding that never followed the move to several named roots (draft v6,
change 1).
1081 passed, 4 skipped, 0 failed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HCGdheDLxGReuKHga3BtST
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Downloads have been encrypted under a GEK-derived key since the beginning:
`file_chunk` and `stream_data` both go through `chunk_ciphertext`. Uploads
never were. `file_upload` carried the filename and the raw bytes in plain
msgpack, and `file_upload_ack` carried the name the node stored them under —
so the same file was ciphertext leaving a node and plaintext arriving at one.
There was no threat model behind that asymmetry.
Both halves now travel sealed under a third groupbox purpose,
HKDF(GEK, info="meshbay:upload:v1"). The filename, the destination folder and
the bytes are all inside the seal; only `upload_id` and `chunk_index` stay in
clear, because the node routes and orders on them before it can decrypt. This
direction seals *towards* the node — it holds the GEK for its own group — and
it opens the payload before it picks a destination or touches the disk.
What that forced, and why none of it is optional:
- `filename` was the correlation key on both sides. It cannot be: matching an
ack to its request by name would hand back exactly what the seal hides.
`upload_id` replaces it — client-drawn, opaque to the node, unique within a
connection, never an authorization input. The property it guarded (one
refusal fails one upload, not every upload in flight) is unchanged.
- Refusals can no longer quote what they refused. `No directory named 'X'`
becomes `No such directory in this group` plus the `code` that was already
there; the client knows what it sent.
- No plaintext fallback. A path that still accepts plaintext is not a sealed
path, so an unsealed `file_upload` is refused with `upload_not_sealed`.
Hardened while here, because what comes out of a seal is authenticated but not
validated — a member can seal anything: `filename` and `data` have their types
checked before any upload state is created, and `chunk_index`/`total_chunks`,
which are outside the seal by necessity, can no longer raise where a refusal
was meant.
Tests. `test_upload_sealed.py` pins the node half: nothing identifying on the
wire, tamper/wrong-key/wrong-group all refused with nothing written, and
multi-chunk reassembly unchanged. `test_upload_seal_client.py` drives the
shipped `uploadFile` over the shipped `crypto.js` under node and feeds its real
frames to the real `_do_file_upload` — the file lands intact, and the ack the
node actually produced comes back with the name it chose for a collision, which
is the half a source-reading test cannot see. Both upload purposes join the
JS/Python groupbox parity vectors.
BREAKING CHANGE: MNP 2.0. `file_upload`/`file_upload_ack` change shape on the
wire every deployed client speaks, which is MAJOR by the same rule 1.0 was —
but the break is confined to uploads. `MNP_MIN_SUPPORTED` stays at "1.0", so a
1.x peer still connects, browses, downloads, streams and chats; only its
uploads are refused, with a message saying which side is old. The client checks
the node's version before sending a chunk, so neither side meets this as a
timeout. This is the version negotiation shipped in 1.0 earning its keep: 1.0
cost a flag day, 2.0 costs a refusal code.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AsoWC3GmhNdwVFomW3QjH3
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Review of the Phase 1 commit found the RO/RW model sound but three paths
unfinished, each of which broke the flow the phase exists to deliver. Plus
29 test failures it introduced and no coverage for anything it added.
Uploads went to the wrong directory. The node read a `root` field on
file_upload that no client ever sent, so every upload landed in the first
writable root while the Files toolbar offered its button based on the root
being browsed — with two writable roots, uploading from one wrote into the
other. Files now names the root it is showing; Chat names one chosen in the
shell (an operator-configured directory arrives in Phase 2); the node refuses
an unknown name rather than falling back, and refuses read-only and ejected
roots by code.
Shared directories were unreachable on the web. The table read its roots
only from the loopback API, which resolves to "not available" in a browser,
so the section rendered for nobody there — while the Uploads controls it
replaced had worked — and the transport.updateRoot/ejectRoot/plugRoot methods
beside it were dead. MNP is now the path, loopback the fallback for a local
node with no live connection, and adding a root over MNP takes a typed path
since no web page can browse a remote disk.
Ejecting updated nobody's screen. transport.js resolves an admin ack against
the pending request and returns, which is right for every op whose caller
knows the value it chose; the root acks carry state only the node can compute,
so the operator who clicked Eject was the one client that never saw it happen.
And the ejected flag reached roster.db but was never read back, so a restart
undid it and the next scan read an empty mount point as an erased library.
Also: the member-upload endpoint answered 200 and did nothing (removed); the
wizard ignored the first root's RW switch; reload compared roots on name and
path, so editing writable in node.toml did nothing; the table had no path
column, which is the only thing separating two libraries sharing a basename;
apps_enabled normalisation differed between the two sides of a signed subject.
Tests: eject/plug, per-root upload refusal and the node.toml rewrite had no
coverage at all. test_member_upload_policy.py is replaced by
test_root_writable_policy.py — it tested a removed feature — and every
property worth keeping from it moved rather than being dropped.
Docs: draft-v6 structural decision 9 is annotated as superseded (the operator
can no longer have a directory only they may write to — a real capability
removed, flagged rather than hidden), the man page documents the root verb and
the RO/RW fields, and refactor-groups.md §7b records what the plan got wrong.
Suite: 41 failures before, 13 after — all 13 pre-existing on main.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011pvMdvLBG92jyhvD5pD6us
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- `.read_text()` on source files now `encoding="utf-8"` — cp1252 chokes on
the em dashes / box-drawing chars those files contain.
- test node.toml templates embed paths via `Path.as_posix()`: a raw Windows
path in a basic TOML string is a parse error (`\U`, `\a`, ... are escapes).
- new `test_platform.py` covers `meshbay_node.platform` by mocking
`sys.platform` / `os.environ` — runs on both OSes.
- `skipif(sys.platform == "win32")`, in `conftest.needs_subprocess` and
inline, for the documented gaps: ffmpeg/ffprobe via asyncio subprocess
(the win32 selector loop, forced for aiortc, cannot spawn one), the
systemd `reload`/`restart-daemon` delegation (Windows path is W3), the
keystore `st_mode == 600` assertion (NTFS ignores mode bits), and the
symlink-escape test (needs Developer Mode).
Windows: 781 passed, 25 skipped. No change on Linux.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Stage A — a group's content is a set of named roots
---------------------------------------------------
`shared_dir` becomes a list of {name, path, kind}. The name is the directory's
basename, derived once at add time and *stored*: recomputing it would
re-identify a whole library the day someone renames a folder on disk. Duplicate
names are refused case-insensitively and no root may contain another — both
compared with NFC folding, because most of these directories live on exFAT or
NTFS where `Films` and `films` are one directory.
Every index path carries its root name, in a one-root group as much as in a
five-root one. One path shape has to be got right once; two have to be kept
right for ever.
**A root that goes away freezes; it never empties.** Unmounting a volume makes
watchdog report every file under it as deleted, or presents an empty directory
to the next scan. Acting on either propagates deletions for a whole library to
every member, as though the owner had erased it. So a deletion is acted on only
once its root is confirmed readable, and availability is tracked per root — one
unplugged drive leaves the others serving. 12 tests, verified to fail against an
indexer without the check.
Events are not trusted to be complete either: ReadDirectoryChangesW drops them
under load and inotify on a FUSE mount misses changes made outside it. A
periodic reconciliation sweep is the only thing that recovers a missed event.
MNP 0.2 → 0.3 (additive). The hub needs no change: SwarmSource carries a content
hash, a node id and an endpoint — no paths, no filenames — and private groups
register nothing (H7).
Stage B — one implementation behind every front door
----------------------------------------------------
C1 and C6 were both "a second path into the node with its own weaker
handshake". Two implementations of `revoke` with two authorization checks is
that shape one size down. `meshbay_node/ops.py` holds each operation once,
takes the daemon state, and knows nothing about HTTP, argv or MNP. The loopback
API is one `_op(...)` line per endpoint; the MNP handlers call the same
functions. test_ops.py asserts the shape rather than trusting it.
Phase 14 is finished on top of it — `group list`, `gek init|rotate`, `reload`
(SIGHUP), `denylist show|clear`, `file list|rm`. **No operator action requires a
browser any more.** Plus `gek_rotate` and `member_unpin` as operator-signed MNP
operations: rotation is the half of revocation that revocation cannot do, since
the ex-member holds the current key, and the node generates the replacement
with its own CSPRNG — no key material crosses the wire, which is what the C5b
rule is actually about.
Two bugs found by running it rather than by testing it
------------------------------------------------------
GroupIndex is keyed by **content hash**, so the same bytes at two paths are one
entry — which is also why a scan reports ten files and indexes nine.
Reconciliation compared paths, so it decided the second path was a missed event
every 60 s, rewrote the entry and pushed an index update to every connected
peer. Seen in a live node's log.
`meshbay-node reload` crashed on first use with `subprocess` unimported: the
module compiles fine, which is the "syntax, not names" trap already recorded for
the SPA. test_cli_dispatch.py now walks every verb and refuses to let one be
added to the parser without an entry there.
Also corrected: protocol.py declared a second MNP_VERSION of "0.1" while the
wire carried "0.2" — harmless only because nothing imported it. And
_do_dir_create/_do_dir_delete referenced an undefined `filename` on their error
path.
740 tests pass; QE/deploy/e2e.py passes end to end against the live deployment.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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