* Move One-Time Pad encryption to the browser; delete backend OTP module
OTP encryption/decryption is now performed entirely in the browser so
messages, keys, and generated pads never leave the originating device.
- Add app/src/components/otp.js: a JS port of the former modules/otp/lib.py
(encrypt/decrypt, message formatting, validation, and secure pad
generation via crypto.getRandomValues with rejection sampling).
- Encrypt/Decrypt now run live as the user types or pastes, with inline
error messages instead of submit buttons.
- Generate New Pad builds the printable HTML locally (blob URL) instead of
hitting /api/otp/html.
- Migrate all backend OTP tests to app/src/components/otp.test.js with
identical data.
- Delete the modules/otp backend module and its blueprint registration.
* Revoke the One-Time Pad blob URL after the new tab loads
Addresses a minor blob-handle leak: handleGenerateNewPad created an object
URL on every click but never released it.
* Let users choose the One-Time Pad character set
Add an "Advanced" accordion under the buttons with three options: A-Z,
A-Z/0-9 (default, unchanged), and a custom character set. The chosen set is
shared by encrypt, decrypt, and pad generation.
- otp.js: parameterize encrypt/decrypt/generate on the alphabet (default
OTP_CHARS for back-compat); add OTP_CHARS_ALPHA and validateCharset; input
is auto-uppercased only when the set is all-uppercase, so custom sets with
lowercase are case-sensitive; the printable pad is labeled with its set.
- Apps.js: lift charset state into OTP(); gate encrypt/decrypt/generate on a
valid set with inline validation errors.
- otp.test.js: add A-Z, custom round-trip, auto-uppercase, validateCharset,
and pad-label tests.
* Scope inverted-accordion dark background to direct children
The rule forcing #171616 on .ui.inverted.accordion .title/.content used a
descendant selector, so it leaked onto any nested element using the `content`
class — e.g. an ErrorMessage's Message.Content rendered inside SimpleAccordion
got a dark band behind its text. Scope to direct children so the accordion
still styles its own title/content but not nested components.
* Add optional error-detection checksum to the One-Time Pad
Adapts the position-weighted checksum from otp-checksum.md to the
frontend-only OTP. checksum = sum(position * value) mod N, parameterized on
the selected character set (N = chars.length), so it follows whichever pad
alphabet is chosen. Position weighting catches transposition errors.
- otp.js: add calculateChecksum/appendChecksum/verifyChecksum.
- Apps.js: opt-in "Append error-detection checksum" toggle in Advanced
(default off). When on, encrypt appends a checksum char; decrypt verifies
it, warns on mismatch, and still shows the decrypted text.
- otp.test.js: checksum unit tests, charset-variation, and end-to-end vectors.
* Show compact checksum status instead of a large warning box
Replace the bulky semantic-ui WarningMessage on decrypt with a small inline
status line: a green check + "Checksum is valid" or a red x + "Checksum is
invalid", shown whenever the checksum option is on and a message is being
decrypted.
* Fix checksum-mode decrypt truncating messages without a checksum
When the "Append error-detection checksum" option was on, Decrypt always
stripped the last ciphertext character before decrypting, so a message that
carried no trailing checksum (wrong sender setting, body pasted alone, etc.)
lost its final character and decrypted to garbage.
Add stripChecksum(received, chars), which removes the trailing character only
when it actually verifies as the checksum of the preceding characters; a
message without a valid checksum is returned intact and flagged invalid. The
decrypt UI now uses it.
Also broaden test coverage:
- stripChecksum tests, including a regression for the truncation bug.
- validation error classes (InvalidOTP/Plaintext/Ciphertext) and the
longer-than-OTP length guards.
- deterministic encrypt/decrypt roundtrip fuzz across several character sets.
- generateMessage character-count and charset-membership checks.
- end-to-end checksummed encrypt -> format -> strip -> decrypt flow.
Use a dedicated InvalidMessage error for the checksum helpers instead of the
misleading InvalidPlaintext.
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Create a new Docs module that consolidates PDF and eBook handling into a
unified system with subjects and authors support. This replaces the
separate PDF/eBook modelers with a single Doc model backed by an
alembic migration (rename ebook to doc).
Key changes:
- New modules/docs package with models, API, extractors, and lib
- Subject and author metadata extraction with case-insensitive
normalization for cleaner PDF metadata
- Frontend Docs pages with AuthorsPage, SubjectsPage using
CollectionTable, and doc card deletion
- Global search integration for subjects and authors
- Generic collection item count support
- Frontend file card metadata adjusted to match collection sort
- Bump yt-dlp version
* A new zim module has been added, this module allows several things to interact with Zim files.
* Allow searching of Zim files using libzim.
* Allow downloading of Kiwix projects (wikipedia, wikibooks, etc) on a schedule which replaces the outdated files.
* Creation of a new zim docker container which allows viewing of the Zim file contents.
* This commit also adds move/rename/mkdir features in the File Browser.
* File tags are preserved when moving/renaming.
