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/utils/adaptive_bottom_sheet.dart'; import 'package:fluffychat/widgets/avatar.dart'; class KeyVerificationDialog extends StatefulWidget { Future show(BuildContext context) => showAdaptiveBottomSheet( context: context, builder: (context) => this, isDismissible: false, ); final KeyVerification request; const KeyVerificationDialog({ Key? key, required this.request, }) : super(key: key); @override KeyVerificationPageState createState() => KeyVerificationPageState(); } class KeyVerificationPageState extends State { void Function()? originalOnUpdate; late final List 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 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 = []; 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: [ 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: [ 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: 1, 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: [ 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: [ const CircularProgressIndicator.adaptive(strokeWidth: 2), const SizedBox(height: 10), Text( acceptText, textAlign: TextAlign.center, ), ], ); break; case KeyVerificationState.done: body = Column( mainAxisSize: MainAxisSize.min, children: [ 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: [ 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? 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.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: [ Text(emoji.emoji, style: const TextStyle(fontSize: 50)), Padding( padding: const EdgeInsets.symmetric(horizontal: 4.0), child: Text(getLocalizedName()), ), const SizedBox(height: 10, width: 5), ], ); } }