fluffychat/lib/pages/key_verification_dialog.dart
2021-08-18 15:24:59 +00:00

423 lines
14 KiB
Dart

import 'dart:ui';
import 'dart:convert';
import 'package:adaptive_dialog/adaptive_dialog.dart';
import 'package:matrix/encryption.dart';
import 'package:matrix/matrix.dart';
import 'package:fluffychat/utils/platform_infos.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
import '../widgets/adaptive_flat_button.dart';
import 'package:future_loading_dialog/future_loading_dialog.dart';
import '../utils/string_color.dart';
import '../utils/beautify_string_extension.dart';
class KeyVerificationDialog extends StatefulWidget {
Future<void> show(BuildContext context) => PlatformInfos.isCupertinoStyle
? showCupertinoDialog(
context: context,
barrierDismissible: true,
builder: (context) => this,
useRootNavigator: false,
)
: showDialog(
context: context,
barrierDismissible: true,
builder: (context) => this,
useRootNavigator: false,
);
final KeyVerification request;
KeyVerificationDialog({
this.request,
});
@override
_KeyVerificationPageState createState() => _KeyVerificationPageState();
}
class _KeyVerificationPageState extends State<KeyVerificationDialog> {
void Function() originalOnUpdate;
List<dynamic> sasEmoji;
@override
void initState() {
originalOnUpdate = widget.request.onUpdate;
widget.request.onUpdate = () {
if (originalOnUpdate != null) {
originalOnUpdate();
}
setState(() => null);
};
widget.request.client.getProfileFromUserId(widget.request.userId).then((p) {
profile = p;
setState(() => null);
});
rootBundle.loadString('assets/sas-emoji.json').then((e) {
sasEmoji = json.decode(e);
setState(() => null);
});
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;
@override
Widget build(BuildContext context) {
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;
final checkInput = () async {
if (input == null || 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(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,
);
}
};
body = Container(
margin: EdgeInsets.only(left: 8.0, right: 8.0),
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Text(L10n.of(context).askSSSSSign,
style: TextStyle(fontSize: 20)),
Container(height: 10),
TextField(
controller: textEditingController,
autofocus: false,
autocorrect: false,
onSubmitted: (s) {
input = s;
checkInput();
},
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: OutlineInputBorder(),
),
),
],
),
);
buttons.add(AdaptiveFlatButton(
label: L10n.of(context).submit,
onPressed: () {
input = textEditingController.text;
checkInput();
},
));
buttons.add(AdaptiveFlatButton(
label: L10n.of(context).skip,
onPressed: () => widget.request.openSSSS(skip: true),
));
break;
case KeyVerificationState.askAccept:
body = Container(
margin: EdgeInsets.only(left: 8.0, right: 8.0),
child: Text(
L10n.of(context).askVerificationRequest(widget.request.userId),
style: TextStyle(fontSize: 20)),
);
buttons.add(AdaptiveFlatButton(
label: L10n.of(context).accept,
onPressed: () => widget.request.acceptVerification(),
));
buttons.add(AdaptiveFlatButton(
label: L10n.of(context).reject,
onPressed: () {
widget.request.rejectVerification().then((_) {
Navigator.of(context, rootNavigator: false).pop();
});
},
));
break;
case KeyVerificationState.waitingAccept:
body = Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
PlatformInfos.isCupertinoStyle
? CupertinoActivityIndicator()
: CircularProgressIndicator(),
SizedBox(height: 10),
Text(
L10n.of(context).waitingPartnerAcceptRequest,
textAlign: TextAlign.center,
),
],
);
final key = widget.request.client.userDeviceKeys[widget.request.userId]
.deviceKeys[widget.request.deviceId];
if (key != null) {
buttons.add(AdaptiveFlatButton(
label: L10n.of(context).verifyManual,
onPressed: () async {
final result = await showOkCancelAlertDialog(
useRootNavigator: false,
context: context,
title: L10n.of(context).verifyManual,
message: key.ed25519Key.beautified,
);
if (result == OkCancelResult.ok) {
await key.setVerified(true);
}
await widget.request.cancel();
Navigator.of(context, rootNavigator: false).pop();
},
));
}
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?
String compareText;
if (widget.request.sasTypes.contains('emoji')) {
compareText = L10n.of(context).compareEmojiMatch;
compareWidget = TextSpan(
children: widget.request.sasEmojis
.map((e) => WidgetSpan(child: _Emoji(e, sasEmoji)))
.toList(),
);
} else {
compareText = L10n.of(context).compareNumbersMatch;
final numbers = widget.request.sasNumbers;
final numbstr = '${numbers[0]}-${numbers[1]}-${numbers[2]}';
compareWidget =
TextSpan(text: numbstr, style: TextStyle(fontSize: 40));
}
body = Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Center(
child: Text(
compareText,
style: TextStyle(fontSize: 16),
textAlign: TextAlign.center,
),
),
SizedBox(height: 10),
Text.rich(
compareWidget,
textAlign: TextAlign.center,
),
],
);
buttons.add(AdaptiveFlatButton(
textColor: Colors.red,
label: L10n.of(context).theyDontMatch,
onPressed: () => widget.request.rejectSas(),
));
buttons.add(AdaptiveFlatButton(
label: 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>[
PlatformInfos.isCupertinoStyle
? CupertinoActivityIndicator()
: CircularProgressIndicator(),
SizedBox(height: 10),
Text(
acceptText,
textAlign: TextAlign.center,
),
],
);
break;
case KeyVerificationState.done:
body = Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Icon(Icons.check_circle_outlined, color: Colors.green, size: 200.0),
SizedBox(height: 10),
Text(
L10n.of(context).verifySuccess,
textAlign: TextAlign.center,
),
],
);
buttons.add(AdaptiveFlatButton(
label: L10n.of(context).close,
onPressed: () => Navigator.of(context, rootNavigator: false).pop(),
));
break;
case KeyVerificationState.error:
body = Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Icon(Icons.cancel, color: Colors.red, size: 200.0),
SizedBox(height: 10),
Text(
'Error ${widget.request.canceledCode}: ${widget.request.canceledReason}',
textAlign: TextAlign.center,
),
],
);
buttons.add(AdaptiveFlatButton(
label: L10n.of(context).close,
onPressed: () => Navigator.of(context, rootNavigator: false).pop(),
));
break;
}
body ??= Text('ERROR: Unknown state ' + widget.request.state.toString());
final otherName = profile?.displayName ?? widget.request.userId;
var bottom;
if (widget.request.deviceId != null) {
final deviceName = widget
.request
.client
.userDeviceKeys[widget.request.userId]
?.deviceKeys[widget.request.deviceId]
?.deviceDisplayName ??
'';
bottom = Container(
alignment: Alignment.center,
padding: EdgeInsets.all(16.0),
child: Text('$deviceName (${widget.request.deviceId})',
style: TextStyle(color: Theme.of(context).textTheme.caption.color)),
);
}
final userNameTitle = Row(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text(
otherName,
maxLines: 1,
style: TextStyle(
color: otherName.color,
fontWeight: FontWeight.bold,
),
),
if (otherName != widget.request.userId)
Text(
' - ' + widget.request.userId,
maxLines: 1,
style: TextStyle(
fontStyle: FontStyle.italic,
),
),
],
);
final title = Text(L10n.of(context).verifyTitle);
final content = SingleChildScrollView(
scrollDirection: Axis.vertical,
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
if (PlatformInfos.isCupertinoStyle) ...[
SizedBox(height: 8),
Center(child: userNameTitle),
SizedBox(height: 12),
],
body,
if (bottom != null) bottom,
],
),
);
if (PlatformInfos.isCupertinoStyle) {
return CupertinoAlertDialog(
title: title,
content: content,
actions: buttons,
);
}
return AlertDialog(
title: title,
content: content,
actions: buttons,
);
}
}
class _Emoji extends StatelessWidget {
final KeyVerificationEmoji emoji;
final List<dynamic> sasEmoji;
_Emoji(this.emoji, this.sasEmoji);
String getLocalizedName() {
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: TextStyle(fontSize: 50)),
Text(getLocalizedName()),
Container(height: 10, width: 5),
],
);
}
}