mirror of
https://github.com/kuhyx/todo-app.git
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Krzysztof kuhy Rudnicki
9f2ffdb8a9
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📎 now picks any file (Android: Camera / Gallery / File; desktop: an
unfiltered dialog) and the desktop page accepts any dropped file. Photo and
screenshot formats up to 64 MB are still re-encoded and shown inline;
everything else is stored byte for byte on dufs beside the images and linked
as [name](url), shown as a row with its size that opens in the platform's
app (Android) or a new browser tab (desktop). BACKLOG.md rewrites file links
to ~/data/cloud/todo-images/ like image links.
There is no size cap, so no layer holds a file in memory: uploads and
downloads stream through DufsImageClient, writes land in a .tmp renamed when
whole (an interrupted download no longer leaves a truncated file that looks
done), the desktop page POSTs the browser's own Blob with fetch, and Android's
"File" uses file_picker, because file_selector's Android side reads the whole
file into memory on the UI thread. Verified with a 1 GB file end to end on
desktop (peak RSS +36 MB) and on an API 36 emulator.
The wrapper serves attachments from the origin that holds the GitHub token
and the notes, so only script-free types open inline (nosniff), the rest
download; writes carrying another site's Origin are refused (this also
closes cross-site overwrites of the backup files); and attachment routes run
concurrently so a long upload or a playing video cannot stall the page.
Also: cupertino_icons 2.0.0 (unused, but the freshness gate blocks the
pubspec otherwise), open_file 4.0.0 and file_picker 13.1.0 pinned.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
66 lines
2.3 KiB
Dart
66 lines
2.3 KiB
Dart
/// Finding attachment links in a note's text, and rewriting them for
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/// `BACKLOG.md`.
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///
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/// One regex reads both shapes: `` is an image, `[name](url)` a file.
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/// Matching them together (rather than a file regex beside an image regex)
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/// is what keeps an image link, which contains `[](url)`, from also counting
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/// as a file.
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///
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/// Pure Dart: the desktop wrapper imports it.
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library;
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import 'package:todo/images/attachment_ref.dart';
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final String _base = RegExp.escape('$kDufsBaseUrl/$kImagesDir/');
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const _label = r'\[[^\]\n]*\]\(';
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const _link = r'(!?)\[([^\]\n]*)\]\(';
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final _anyLink = RegExp('$_link$_base($kAttachmentPathPattern)\\)');
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final _wholeLine = RegExp('^\\s*${_anyLink.pattern}\\s*\$');
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final _urlLink = RegExp('($_label)$_base($kAttachmentPathPattern\\))');
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final _backlogLink = RegExp(
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'($_label)${RegExp.escape('$kBacklogImagesRoot/')}'
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'($kAttachmentPathPattern\\))',
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);
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Attachment _attachment(RegExpMatch match) => Attachment(
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ref: AttachmentRef.tryParse(match.group(3)!)!,
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name: match.group(2)!,
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isImage: match.group(1)!.isNotEmpty,
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);
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/// Every attachment [text] links to, in order, each ref once.
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List<Attachment> attachmentsIn(String text) {
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final seen = <AttachmentRef>{};
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final found = <Attachment>[];
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for (final match in _anyLink.allMatches(text)) {
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final attachment = _attachment(match);
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if (seen.add(attachment.ref)) found.add(attachment);
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}
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return found;
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}
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/// Every ref [text] links to, images and files alike.
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Set<AttachmentRef> attachmentRefsIn(String text) => {
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for (final attachment in attachmentsIn(text)) attachment.ref,
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};
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/// The attachment when [line] is nothing but one attachment link, else null.
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Attachment? attachmentOfLine(String line) {
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final match = _wholeLine.firstMatch(line);
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return match == null ? null : _attachment(match);
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}
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/// Rewrites attachment links to their on-disk path under
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/// [kBacklogImagesRoot].
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String toBacklogAttachmentPaths(String text) => text.replaceAllMapped(
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_urlLink,
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(m) => '${m[1]}$kBacklogImagesRoot/${m[2]}',
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);
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/// Exact inverse of [toBacklogAttachmentPaths], so an exported backlog
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/// imports back with its links intact.
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String fromBacklogAttachmentPaths(String text) => text.replaceAllMapped(
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_backlogLink,
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(m) => '${m[1]}$kDufsBaseUrl/$kImagesDir/${m[2]}',
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);
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