Commit Graph

5 Commits

Author SHA1 Message Date
MechaCat02
dc50b4bcd5 Write the notes in an app, a school day at a time
The notes existed but there was nowhere to write them: a CLI command on a
laptop, a tool call through Claude, or a file in a Docker volume. None of
those is reachable from a phone in a lesson, which is where notes are
actually taken.

So: `/app`, served only when WEB_PASSWORD is set. A login, the day's
notes, and a settings page for the Schulcloud token — the one surface
here meant for a person rather than a program.

The shape follows how the notes are written: one note per school day,
one `##` heading per lesson, prose and lists and tables beneath. That
turns out to be the design decision that matters, twice over.

First, it is what lets WebUntis earn its keep. Opening a day with no
note fills in that day's lessons — numbered, with times, teacher and
room, cancellations dropped and substitutions marked. Retyping the
timetable is exactly the work the second upstream exists to avoid, and
"Stunden ergänzen" tops up a note started before the day ended without
touching what is already written.

Second, it changes how notes are indexed. A day note is indexed per
lesson, not whole: search answers "my own note, Deutsch, 18.09.2026"
rather than "my own note, Friday", and `list_notes subject=Deutsch`
finds a day whose frontmatter names no subject at all. Indexed whole,
every hit would read as a weekday and "what did we do in Deutsch" would
match notes whose other five lessons were something else. `lessonHeading`
and `subjectFromHeading` are a loop — the app writes the heading, the
indexer reads the subject back out — and a test holds them to it.

Notes taken in a lesson cannot be retaken, so the editor is built
around not losing them: autosave, every keystroke mirrored to local
storage, a save when the phone locks, and a fallback to the local copy
when the request never arrives. A save that would overwrite a version
the editor never saw is refused and the choice handed back — the notes
folder is synced and open in more than one place, and a phone must not
silently win over a laptop. `replaceNote` is separate from `writeNote`
for that reason: never-overwrite is right for `add_note` and exactly
wrong for an editor.

WEB_PASSWORD is the first credential here a human types, so it is the
first that can be guessed: scrypt at startup, never stored or compared
in the clear, per-address rate limiting — which is not decoration, since
the scrypt cost is itself a denial-of-service vector without it. The
session is a signed HttpOnly SameSite=Strict cookie whose key is derived
from the password, so changing it logs everyone out and there is no
second secret to keep. It opens /api, because a session is the user, and
never /mcp, because nothing in a browser speaks MCP.

Also here, because the app made them matter: frontmatter now reads the
indented `- item` list form editors write, so an Obsidian vault
round-trips its tags; and a four-digit folder is a filing scheme, not a
subject, so `2026/` does not file a school year under one.

357 tests; 106/107 smoke against the local instance, the one failure
being the H5P service that instance does not run.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-19 17:21:17 +02:00
MechaCat02
af4464decb Read the user's own lesson notes, and the class register behind them
Schulcloud says what was uploaded and WebUntis says what was scheduled.
Neither says what was *taught* — which point the teacher laboured, which
example landed, what "will definitely come up". That lives in two places
this server could not reach: the notes the user takes in the lesson, and
WebUntis' class register.

Notes are a directory of Markdown files (NOTES_DIR), not a table. They
have to be writable from a phone in a classroom, readable when Postgres
is down, and outlive this project, and files are the only shape that is
all three — so the files are the truth and the index is a view of them,
the same split as file_texts and the mirror. list_notes and get_note read
disk, so they answer before the first crawl; search, what_changed and all
three German prompts read them alongside the Schulcloud material.

add_note writes one, and is the only thing in this server that writes
anything. That is not a hole in the read-only invariant but a different
store: it is bounded to NOTES_DIR by the same safeComponent/resolveWithin
pair that stops a hostile Schulcloud filename escaping the mirror, so a
note titled ../../.ssh/authorized_keys becomes a filename. Schulcloud and
WebUntis stay GET-only and allowlisted respectively. NOTES_READONLY
refuses writes outright.

Appending targets the *lesson*, not the title: "halt das auch noch fest"
mid-lesson carries a new title, and deriving the path from it would start
a second note every time, which is the one thing append exists to prevent.

Notes.app has no export — its bodies are compressed protobuf and the
iCloud copy is encrypted — so scripting the app is not the clumsy route
to the notes but the only one. scripts/export-apple-notes.js reads them
through AppleScript into one JSON object per line, and `schulcloud note
import` converts the HTML to Markdown, takes the Notes folder as the
subject and the *creation* date as the lesson's date. Attachments cannot
come across; a note that was a photo of the board imports as a line
saying so, because importing it empty would hide the loss.

The class register needed one API property to become cheap:
getLessonTopic2017 answers per *series*, not per period, so a term is
reconstructed by asking about the latest period of each lesson series and
merging back by id — a few dozen calls for a school year rather than one
per lesson. untis_lesson_topics now takes a subject as well as a period
id, and UNTIS_HISTORY_DAYS of register goes into the index under a kind
of its own, so "what did we actually do before the test" is searchable.

Sharing the snapshot rather than duplicating it caught one thing on the
way: the search tool's live path had to learn notes too, or fresh=true
would have quietly disagreed with the index.

305 tests; 88/89 smoke against the local instance, the one failure being
the H5P service that instance does not run. The live smoke could not be
retaken: that session has lapsed and needs a fresh jwt cookie.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 21:46:26 +02:00
MechaCat02
a0cef532c6 Read the quizzes behind H5P elements
A quiz in Schulcloud is an H5P element, and a board hands over nothing but a
contentId — so a teacher's exercise was until now a line saying one exists.
The player shows a single question at a time, which makes it look like
something to step through or scrape. It is not:
`GET /api/v3/h5p-editor/params/{contentId}` returns the JSON the player is fed,
so one request holds every question, every option and which of them are
correct. (`play/{id}` is the same content plus the player's script lists: 74 kB
against 51 kB for the live quiz. Neither docs-json describes the service.)

get_h5p prints the exercise, and solutions=false keeps the options while
dropping the answers, so it can be used to ask the questions instead of
answering them. get_board names the exercise — title, question count, kinds —
rather than printing a bare id, and the crawl indexes its text, so a phrase
that exists only inside a quiz is now findable. That is the treatment pads
already get, for the same reason: it is course material and nothing else
surfaces it.

What varies is the shape inside `params`, which belongs to whichever H5P
library the teacher used. Modelled: MultiChoice, whose `behaviour.singleAnswer`
is the only honest source for "tick exactly one"; TrueFalse, whose `correct` is
the string "true"; the cloze libraries, which mark solutions inline as
`*answer:tip*`; SingleChoiceSet and Summary, which put the correct option first
and let the player shuffle; and Column. Anything else has its text harvested
and labelled unmodelled — an exercise reported as "0 questions" would be worse
than a clumsy rendering of one. The harvest skips the UI and l10n subtrees, or
a quiz reads as "Überprüfen, Wiederholen, Absenden".

Verified against this account's quiz, an H5P.QuestionSet of 20 MultiChoice
questions on a room's board: 239 tests, smoke 91/91 live-only and 93/93 with
the index.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-17 21:39:19 +02:00
MechaCat02
1de026ca43 Serve rooms ("Räume"), which are not courses however the urls read
The account this was built against is in no rooms, so the whole space was
invisible and easy to dismiss as an empty endpoint. It is not empty in
general — the user had rooms until a teacher removed access — and the
UI's naming actively hides the distinction: the sidebar's *Kurse* entry
links to `/rooms/courses-overview` and lists courses, while *Räume* links
to `/rooms` and lists rooms. A url containing `/rooms` identifies neither.

list_rooms and get_room cover the latter. A room holds boards and nothing
else, so get_room lists boards for get_board (which already reports "in
room" from the board context) plus who else is in it. Room boards report
`isVisible`, which the course-page projection does not, so a draft is
named as a draft instead of being offered and then answering 403.

Rooms also go through the crawl, or they would have become the next
blind spot: their boards are indexed, searchable by both the index and
the live-crawl path, diffed by what_changed, and mirrored by the CLI
under the room's name. The board traversal and the snapshot matcher are
now shared between courses and rooms rather than duplicated, which also
fixed the live-crawl path silently not searching pad contents.

The CLI needed no new command — it is file-centric and inherits rooms
through the manifest — but `--course` now accepts a room id, and says so.

`kind` gains 'room'; the column is plain TEXT, so no migration. 112 tests.
Smoke: 42/42 and 44/44 local, 41/41 and 43/43 live.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-09-13 19:24:53 +02:00
81dd633863 Extract core/, lift the crawler out of the search tool
Moves the reusable half into src/core/ (client, types, board, extract,
text, keepalive) and the MCP half into src/mcp/. The layering was
already clean — nothing in core imported app code or read process.env —
so this is a move, not a redesign, and the smoke suite stayed the oracle
throughout.

The substantive part is core/crawl.ts. The course->board->card->element
->file traversal previously existed only inside tools/search.ts, and the
indexer, what's-new diff and file mirror all need it. It now returns a
typed Snapshot with breadcrumbs, sorted so two crawls of unchanged
content compare equal. Metadata only: downloading and extracting bytes
is an order of magnitude more expensive and only the indexer wants it.

core/match.ts holds the keyword matching, which makes it testable
without a network, and core/text.ts gains the fold/tokenize/snippet
helpers (accent folding is not optional for German).

search now finds strictly more than before — 5 hits vs 3 for
"Datenschutz" — because the snapshot surfaces file-name matches the old
streaming walk skipped. 34 unit tests and 30/30 smoke checks pass.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-12 21:04:52 +02:00