Add password protected notes, closes #771

api/lib/src/converter/color.dart

@@ -0,0 +1,16 @@
+import 'package:dart_leap/dart_leap.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+class ColorJsonConverter extends JsonConverter<SRGBColor, int> {
+  const ColorJsonConverter();
+
+  @override
+  SRGBColor fromJson(int json) {
+    return SRGBColor(json);
+  }
+
+  @override
+  int toJson(SRGBColor object) {
+    return object.value;
+  }
+}

api/lib/src/converter/note.dart

@@ -7,19 +7,19 @@ import '../../butterfly_api.dart';
 
 const kArchiveSignature = 0x50;
 
-NoteData noteDataMigrator(Uint8List data) {
+NoteData noteDataMigrator(Uint8List data, {String? password}) {
   Archive archive;
   if (data.isNotEmpty && data[0] != kArchiveSignature) {
     final map = json.decode(utf8.decode(data)) as Map<String, dynamic>;
     archive = convertLegacyDataToArchive(map);
   } else {
-    archive = ZipDecoder().decodeBytes(data);
+    archive = ZipDecoder().decodeBytes(data, password: password);
   }
-  return archiveNoteDataMigrator(archive);
+  return archiveNoteDataMigrator(archive, password: password);
 }
 
-NoteData archiveNoteDataMigrator(Archive archive) {
-  var noteData = NoteData(archive);
+NoteData archiveNoteDataMigrator(Archive archive, {String? password}) {
+  var noteData = NoteData.build(archive, password: password);
   var metadata = noteData.getMetadata();
   if (metadata != null &&
       (metadata.fileVersion ?? kFileVersion) < kFileVersion) {
@@ -52,7 +52,7 @@ NoteData _migrate(NoteData noteData, FileMetadata metadata) {
     }
   }
   if (version < 10) {
-    for (final page in noteData.getAssets(kPagesArchiveDirectory)) {
+    for (final page in noteData.getAssets('$kPagesArchiveDirectory/')) {
       final data = noteData.getAsset('$kPagesArchiveDirectory/$page');
       if (data == null) continue;
       final pageData = json.decode(utf8.decode(data)) as Map<String, dynamic>;
@@ -89,7 +89,7 @@ NoteData _migrate(NoteData noteData, FileMetadata metadata) {
     }
   }
   if (version < 11) {
-    for (final page in noteData.getAssets(kPagesArchiveDirectory)) {
+    for (final page in noteData.getAssets('$kPagesArchiveDirectory/')) {
       final data = noteData.getAsset('$kPagesArchiveDirectory/$page');
       if (data == null) continue;
       final pageData = json.decode(utf8.decode(data)) as Map<String, dynamic>;

api/lib/src/converter/xopp.dart

@@ -5,6 +5,7 @@ import 'dart:typed_data';
 import 'package:archive/archive.dart';
 import 'package:butterfly_api/butterfly_api.dart';
 import 'package:butterfly_api/butterfly_text.dart' as text;
+import 'package:dart_leap/dart_leap.dart';
 import 'package:xml/xml.dart';
 
 List<PathPoint> toPoints(List<double> data) {
@@ -20,14 +21,12 @@ List<PathPoint> toPoints(List<double> data) {
   return points;
 }
 
-int _importColor(String value) {
-  final number = int.parse(value.substring(1), radix: 16);
-  return (number >> 8 | number << 24);
+SRGBColor _importColor(String value) {
+  return SRGBColor.parse(value);
 }
 
-String _exportColor(int value) {
-  final number = (value >> 8 | value << 24);
-  return '#${number.toRadixString(16)}';
+String _exportColor(SRGBColor value) {
+  return value.toHexString();
 }
 
 (NoteData, PadElement?) getElement(
@@ -161,8 +160,8 @@ Uint8List xoppExporter(NoteData document) {
       builder.element('page', nest: () {
         builder.element('background', attributes: {
           'type': 'solid',
-          'color':
-              _exportColor(page.backgrounds.firstOrNull?.defaultColor ?? 0),
+          'color': _exportColor(
+              page.backgrounds.firstOrNull?.defaultColor ?? SRGBColor.white),
           'style': 'plain',
         });
         builder.element('layer', nest: () {
@@ -185,7 +184,7 @@ Uint8List xoppExporter(NoteData document) {
                         ?.span
                     : styleSheet?.getParagraphProperty('p')?.span;
                 builder.element('text', attributes: {
-                  'color': _exportColor(style?.color ?? 0),
+                  'color': _exportColor(style?.color ?? SRGBColor.black),
                   'size': (style?.size ?? 12).toString(),
                   'x': e.position.x.toString(),
                   'y': e.position.y.toString(),

api/lib/src/models/asset.dart

@@ -1,16 +1,8 @@
-import 'dart:typed_data';
-
 import 'package:butterfly_api/butterfly_api.dart';
 import 'package:lw_file_system_api/lw_file_system_api.dart';
 
 enum AssetFileType { note, page, image, markdown, pdf, svg, xopp, archive }
 
-extension AppDocumentLoadExtension on FileSystemFile {
-  NoteData load({bool disableMigrations = false}) =>
-      NoteData.fromData(Uint8List.fromList(data),
-          disableMigrations: disableMigrations);
-}
-
 extension AssetLocationFileTypeExtension on AssetLocation {
   AssetFileType? get fileType =>
       AssetFileTypeHelper.fromFileExtension(fileExtension);

api/lib/src/models/background.dart

@@ -1,6 +1,6 @@
+import 'package:dart_leap/dart_leap.dart';
 import 'package:freezed_annotation/freezed_annotation.dart';
 
-import 'colors.dart';
 import 'texture.dart';
 
 part 'background.g.dart';
@@ -36,8 +36,8 @@ sealed class Background with _$Background {
   factory Background.fromJson(Map<String, dynamic> json) =>
       _$BackgroundFromJson(json);
 
-  int get defaultColor => switch (this) {
+  SRGBColor get defaultColor => switch (this) {
         TextureBackground e => e.texture.boxColor,
-        _ => BasicColors.white
+        _ => SRGBColor.white
       };
 }

api/lib/src/models/colors.dart

@@ -1,11 +1,10 @@
+import 'package:dart_leap/dart_leap.dart';
+
 class BasicColors {
-  static const white = 0xFFFFFFFF;
-  static const light = 0xFFD9D9D9;
-  static const black = 0xFF000000;
-  static const dark = 0xFF1A1A1A;
-  static const red = 0xFFF44336;
-  static const blue = 0xFF2196F3;
-  static const transparent = 0x00000000;
+  static const light = SRGBColor(0xFFD9D9D9);
+  static const dark = SRGBColor(0xFF1A1A1A);
+  static const red = SRGBColor(0xFFF44336);
+  static const blue = SRGBColor(0xFF2196F3);
 
   const BasicColors._();
 }

api/lib/src/models/data.dart

@@ -18,28 +18,56 @@ import 'palette.dart';
 
 final Set<String> validAssetPaths = {kImagesArchiveDirectory};
 
-@immutable
+final class NoteFile {
+  final Uint8List data;
+
+  NoteFile(this.data);
+
+  bool isEncrypted() => isZipEncrypted(data);
+
+  (String?, NoteData)? _data;
+
+  NoteData? load({String? password}) {
+    if (_data != null && _data?.$1 == password) {
+      return _data?.$2;
+    }
+    try {
+      final data = NoteData.fromData(this.data, password: password);
+      _data = (password, data);
+      return data;
+    } catch (_) {
+      return null;
+    }
+  }
+}
+
 final class NoteData extends ArchiveData<NoteData> {
   NoteData(super.archive, {super.state});
+  NoteData.build(super.archive, {super.password}) : super.build();
 
-  factory NoteData.fromData(Uint8List data, {bool disableMigrations = false}) {
+  factory NoteData.fromData(Uint8List data,
+      {bool disableMigrations = false, String? password}) {
     if (disableMigrations) {
-      final archive = ZipDecoder().decodeBytes(data);
-      return NoteData(archive);
+      final archive = ZipDecoder().decodeBytes(data, password: password);
+      return NoteData.build(archive, password: password);
     }
-    return noteDataMigrator(data);
+    return noteDataMigrator(data, password: password);
   }
 
   factory NoteData.fromArchive(Archive archive,
-      {bool disableMigrations = false}) {
+      {bool disableMigrations = false, String? password}) {
     if (disableMigrations) {
-      return NoteData(archive);
+      return NoteData.build(archive, password: password);
     }
     return archiveNoteDataMigrator(archive);
   }
 
-  factory NoteData.fromJson(dynamic json) => NoteData.fromData(
+  factory NoteData.fromJson(dynamic json,
+          {bool disableMigrations = false, String? password}) =>
+      NoteData.fromData(
         base64Decode(json as String),
+        disableMigrations: disableMigrations,
+        password: password,
       );
 
   NoteFileType? get type => getMetadata()?.type;
@@ -71,7 +99,7 @@ final class NoteData extends ArchiveData<NoteData> {
       '$name${fileExtension.isNotEmpty ? '.$fileExtension' : ''}';
 
   String findUniqueName(String path, String fileExtension, [String name = '']) {
-    final assets = getAssets(path);
+    final assets = getAssets('$path/');
     if (!assets.contains(_getFileName(name, fileExtension)) &&
         name.trim().isNotEmpty) {
       return _getFileName(name, fileExtension);
@@ -238,7 +266,7 @@ final class NoteData extends ArchiveData<NoteData> {
 
   @useResult
   List<(int, String, String)> _getPagesOrder() =>
-      getAssets(kPagesArchiveDirectory, true).map((e) {
+      getAssets('$kPagesArchiveDirectory/', true).map((e) {
         if (e.contains('.')) {
           final split = e.split('.');
           return (
@@ -319,13 +347,13 @@ final class NoteData extends ArchiveData<NoteData> {
       removeAsset('$kPacksArchiveDirectory/$name.bfly');
 
   @useResult
-  Iterable<String> getPacks() => getAssets(kPacksArchiveDirectory, true);
+  Iterable<String> getPacks() => getAssets('$kPacksArchiveDirectory/', true);
 
   // Pack specific
 
   @useResult
   Iterable<String> getComponents() =>
-      getAssets(kComponentsArchiveDirectory, true);
+      getAssets('$kComponentsArchiveDirectory/', true);
 
   @useResult
   ButterflyComponent? getComponent(String componentName) {
@@ -348,7 +376,7 @@ final class NoteData extends ArchiveData<NoteData> {
       removeAsset('$kComponentsArchiveDirectory/$name.json');
 
   @useResult
-  Iterable<String> getStyles() => getAssets(kStylesArchiveDirectory, true);
+  Iterable<String> getStyles() => getAssets('$kStylesArchiveDirectory/', true);
 
   @useResult
   TextStyleSheet? getStyle(String styleName) {
@@ -383,7 +411,8 @@ final class NoteData extends ArchiveData<NoteData> {
   }
 
   @useResult
-  Iterable<String> getPalettes() => getAssets(kPalettesArchiveDirectory, true);
+  Iterable<String> getPalettes() =>
+      getAssets('$kPalettesArchiveDirectory/', true);
 
   @useResult
   ColorPalette? getPalette(String paletteName) {
@@ -425,4 +454,6 @@ final class NoteData extends ArchiveData<NoteData> {
     final removed = Set<String>.from(state.removed)..remove(path);
     return updateState(state.copyWith(removed: removed));
   }
+
+  NoteFile toFile() => NoteFile(exportAsBytes());
 }

api/lib/src/models/element.dart

@@ -1,10 +1,12 @@
 import 'dart:math';
 
+import 'package:butterfly_api/src/converter/color.dart';
+import 'package:dart_leap/dart_leap.dart';
+
 import '../converter/core.dart';
 import 'package:freezed_annotation/freezed_annotation.dart';
 
 import '../converter/id.dart';
-import 'colors.dart';
 import 'pack.dart';
 import 'point.dart';
 import 'property.dart';
@@ -60,7 +62,7 @@ mixin LabelElement {
   double get scale;
   PackAssetLocation get styleSheet;
   ElementConstraint get constraint;
-  int get foreground;
+  SRGBColor get foreground;
 
   AreaProperty get areaProperty => switch (this) {
         MarkdownElement e => e.areaProperty,
@@ -102,7 +104,7 @@ sealed class PadElement with _$PadElement {
     @Default(PackAssetLocation()) PackAssetLocation styleSheet,
     required TextArea area,
     @Default(ElementConstraint(size: 1000)) ElementConstraint constraint,
-    @Default(BasicColors.black) int foreground,
+    @Default(SRGBColor.black) @ColorJsonConverter() SRGBColor foreground,
     @Default({}) Map<String, dynamic> extra,
   }) = TextElement;
 
@@ -119,7 +121,7 @@ sealed class PadElement with _$PadElement {
     @Default(AreaProperty()) AreaProperty areaProperty,
     required String text,
     @Default(ElementConstraint(size: 1000)) ElementConstraint constraint,
-    @Default(BasicColors.black) int foreground,
+    @Default(SRGBColor.black) @ColorJsonConverter() SRGBColor foreground,
     @Default({}) Map<String, dynamic> extra,
   }) = MarkdownElement;