fluffychat/lib/pages/key_verification/key_verification_dialog.dart
2022-12-26 20:21:18 +01:00

383 lines
12 KiB
Dart

import 'dart:convert';
import 'dart:ui';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:adaptive_dialog/adaptive_dialog.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
import 'package:future_loading_dialog/future_loading_dialog.dart';
import 'package:matrix/encryption.dart';
import 'package:matrix/matrix.dart';
import 'package:fluffychat/widgets/avatar.dart';
class KeyVerificationDialog extends StatefulWidget {
Future<void> show(BuildContext context) => showModalBottomSheet(
context: context,
builder: (context) => this,
useRootNavigator: false,
isDismissible: false,
);
final KeyVerification request;
const KeyVerificationDialog({
Key? key,
required this.request,
}) : super(key: key);
@override
KeyVerificationPageState createState() => KeyVerificationPageState();
}
class KeyVerificationPageState extends State<KeyVerificationDialog> {
void Function()? originalOnUpdate;
late final List<dynamic> sasEmoji;
@override
void initState() {
originalOnUpdate = widget.request.onUpdate;
widget.request.onUpdate = () {
originalOnUpdate?.call();
setState(() {});
};
widget.request.client.getProfileFromUserId(widget.request.userId).then((p) {
profile = p;
setState(() {});
});
rootBundle.loadString('assets/sas-emoji.json').then((e) {
sasEmoji = json.decode(e);
setState(() {});
});
super.initState();
}
@override
void dispose() {
widget.request.onUpdate =
originalOnUpdate; // don't want to get updates anymore
if (![KeyVerificationState.error, KeyVerificationState.done]
.contains(widget.request.state)) {
widget.request.cancel('m.user');
}
super.dispose();
}
Profile? profile;
Future<void> checkInput(String input) async {
if (input.isEmpty) return;
final valid = await showFutureLoadingDialog(
context: context,
future: () async {
// make sure the loading spinner shows before we test the keys
await Future.delayed(const Duration(milliseconds: 100));
var valid = false;
try {
await widget.request.openSSSS(keyOrPassphrase: input);
valid = true;
} catch (_) {
valid = false;
}
return valid;
});
if (valid.error != null) {
await showOkAlertDialog(
useRootNavigator: false,
context: context,
message: L10n.of(context)!.incorrectPassphraseOrKey,
);
}
}
@override
Widget build(BuildContext context) {
User? user;
final directChatId =
widget.request.client.getDirectChatFromUserId(widget.request.userId);
if (directChatId != null) {
user = widget.request.client
.getRoomById(directChatId)!
.unsafeGetUserFromMemoryOrFallback(widget.request.userId);
}
final displayName =
user?.calcDisplayname() ?? widget.request.userId.localpart!;
var title = Text(L10n.of(context)!.verifyTitle);
Widget body;
final buttons = <Widget>[];
switch (widget.request.state) {
case KeyVerificationState.askSSSS:
// prompt the user for their ssss passphrase / key
final textEditingController = TextEditingController();
String input;
body = Container(
margin: const EdgeInsets.only(left: 8.0, right: 8.0),
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Text(L10n.of(context)!.askSSSSSign,
style: const TextStyle(fontSize: 20)),
Container(height: 10),
TextField(
controller: textEditingController,
autofocus: false,
autocorrect: false,
onSubmitted: (s) {
input = s;
checkInput(input);
},
minLines: 1,
maxLines: 1,
obscureText: true,
decoration: InputDecoration(
hintText: L10n.of(context)!.passphraseOrKey,
prefixStyle: TextStyle(color: Theme.of(context).primaryColor),
suffixStyle: TextStyle(color: Theme.of(context).primaryColor),
border: const OutlineInputBorder(),
),
),
],
),
);
buttons.add(TextButton(
child: Text(
L10n.of(context)!.submit,
),
onPressed: () => checkInput(textEditingController.text),
));
buttons.add(TextButton(
child: Text(
L10n.of(context)!.skip,
),
onPressed: () => widget.request.openSSSS(skip: true),
));
break;
case KeyVerificationState.askAccept:
title = Text(L10n.of(context)!.newVerificationRequest);
body = Column(
mainAxisSize: MainAxisSize.min,
children: [
const SizedBox(height: 16),
Avatar(
mxContent: user?.avatarUrl,
name: displayName,
size: Avatar.defaultSize * 2,
),
const SizedBox(height: 16),
Text(
L10n.of(context)!.askVerificationRequest(displayName),
)
],
);
buttons.add(TextButton.icon(
icon: const Icon(Icons.close),
style: TextButton.styleFrom(foregroundColor: Colors.red),
label: Text(L10n.of(context)!.reject),
onPressed: () => widget.request
.rejectVerification()
.then((_) => Navigator.of(context, rootNavigator: false).pop()),
));
buttons.add(TextButton.icon(
icon: const Icon(Icons.check),
label: Text(L10n.of(context)!.accept),
onPressed: () => widget.request.acceptVerification(),
));
break;
case KeyVerificationState.waitingAccept:
body = Center(
child: Column(
children: <Widget>[
Stack(
alignment: Alignment.center,
children: [
Avatar(
mxContent: user?.avatarUrl,
name: displayName,
),
const SizedBox(
width: Avatar.defaultSize + 2,
height: Avatar.defaultSize + 2,
child: CircularProgressIndicator(strokeWidth: 2),
),
],
),
const SizedBox(height: 16),
Text(
L10n.of(context)!.waitingPartnerAcceptRequest,
textAlign: TextAlign.center,
),
],
),
);
break;
case KeyVerificationState.askSas:
TextSpan compareWidget;
// maybe add a button to switch between the two and only determine default
// view for if "emoji" is a present sasType or not?
if (widget.request.sasTypes.contains('emoji')) {
title = Text(
L10n.of(context)!.compareEmojiMatch,
maxLines: 2,
style: const TextStyle(fontSize: 16),
);
compareWidget = TextSpan(
children: widget.request.sasEmojis
.map((e) => WidgetSpan(child: _Emoji(e, sasEmoji)))
.toList(),
);
} else {
title = Text(L10n.of(context)!.compareNumbersMatch);
final numbers = widget.request.sasNumbers;
final numbstr = '${numbers[0]}-${numbers[1]}-${numbers[2]}';
compareWidget =
TextSpan(text: numbstr, style: const TextStyle(fontSize: 40));
}
body = Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Text.rich(
compareWidget,
textAlign: TextAlign.center,
),
],
);
buttons.add(TextButton.icon(
icon: const Icon(Icons.close),
style: TextButton.styleFrom(
foregroundColor: Colors.red,
),
label: Text(L10n.of(context)!.theyDontMatch),
onPressed: () => widget.request.rejectSas(),
));
buttons.add(TextButton.icon(
icon: const Icon(Icons.check_outlined),
label: Text(L10n.of(context)!.theyMatch),
onPressed: () => widget.request.acceptSas(),
));
break;
case KeyVerificationState.waitingSas:
final acceptText = widget.request.sasTypes.contains('emoji')
? L10n.of(context)!.waitingPartnerEmoji
: L10n.of(context)!.waitingPartnerNumbers;
body = Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
const CircularProgressIndicator.adaptive(strokeWidth: 2),
const SizedBox(height: 10),
Text(
acceptText,
textAlign: TextAlign.center,
),
],
);
break;
case KeyVerificationState.done:
body = Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
const Icon(Icons.check_circle_outlined,
color: Colors.green, size: 128.0),
const SizedBox(height: 10),
Text(
L10n.of(context)!.verifySuccess,
textAlign: TextAlign.center,
),
],
);
buttons.add(TextButton(
child: Text(
L10n.of(context)!.close,
),
onPressed: () => Navigator.of(context, rootNavigator: false).pop(),
));
break;
case KeyVerificationState.error:
body = Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
const Icon(Icons.cancel, color: Colors.red, size: 128.0),
const SizedBox(height: 10),
Text(
'Error ${widget.request.canceledCode}: ${widget.request.canceledReason}',
textAlign: TextAlign.center,
),
],
);
buttons.add(TextButton(
child: Text(
L10n.of(context)!.close,
),
onPressed: () => Navigator.of(context, rootNavigator: false).pop(),
));
break;
}
return Scaffold(
appBar: AppBar(
leading: const CloseButton(),
title: title,
),
body: ListView(
padding: const EdgeInsets.all(12.0),
children: [body],
),
bottomNavigationBar: SafeArea(
child: Padding(
padding: const EdgeInsets.all(12.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.end,
children: buttons,
),
),
),
);
}
}
class _Emoji extends StatelessWidget {
final KeyVerificationEmoji emoji;
final List<dynamic>? sasEmoji;
const _Emoji(this.emoji, this.sasEmoji);
String getLocalizedName() {
final sasEmoji = this.sasEmoji;
if (sasEmoji == null) {
// asset is still being loaded
return emoji.name;
}
final translations = Map<String, String?>.from(
sasEmoji[emoji.number]['translated_descriptions']);
translations['en'] = emoji.name;
for (final locale in window.locales) {
final wantLocaleParts = locale.toString().split('_');
final wantLanguage = wantLocaleParts.removeAt(0);
for (final haveLocale in translations.keys) {
final haveLocaleParts = haveLocale.split('_');
final haveLanguage = haveLocaleParts.removeAt(0);
if (haveLanguage == wantLanguage &&
(Set.from(haveLocaleParts)..removeAll(wantLocaleParts)).isEmpty &&
(translations[haveLocale]?.isNotEmpty ?? false)) {
return translations[haveLocale]!;
}
}
}
return emoji.name;
}
@override
Widget build(BuildContext context) {
return Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Text(emoji.emoji, style: const TextStyle(fontSize: 50)),
Text(getLocalizedName()),
const SizedBox(height: 10, width: 5),
],
);
}
}