154 lines
4.0 KiB
Dart
154 lines
4.0 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:logger/logger.dart';
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import 'dart:convert';
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import 'dialog.dart';
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import '../utils/verify_server.dart';
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final log = Logger();
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class ServerForm extends StatefulWidget {
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ServerForm({Key key}) : super(key: key);
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@override
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_ServerFormState createState() => _ServerFormState();
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}
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class _ServerFormState extends State<ServerForm> {
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Uri zAddress;
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Uri botZAddress;
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bool _autoValidate = false;
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bool _disableFields = false;
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final _serverFormKey = GlobalKey<FormState>();
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final zController = TextEditingController();
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final botZController = TextEditingController();
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InputDecoration _textFieldDecoration(String label, IconData icon) {
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return InputDecoration(
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labelText: label,
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icon: Icon(icon),
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hintText: 'Please, insert $label address',
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);
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}
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SnackBar showProgress() {
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return SnackBar(
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content: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: <Widget>[
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CircularProgressIndicator(
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value: null,
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strokeWidth: 7.0,
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),
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Text('Processing Data')
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],
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));
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}
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String validateServer(String address) {
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if (address.isEmpty) {
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return 'Server address must not be empty';
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}
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try {
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Uri.parse(address);
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} on FormatException catch (e) {
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return e.toString();
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}
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return null;
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}
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String validateZServer(String address) {
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String baseValidation = this.validateServer(address);
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if (baseValidation != null) {
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return baseValidation;
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}
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if (utf8.encode(address).length > 72) {
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return "Server address string length is > 72 bytes. Refusing to go on.";
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}
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return null;
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}
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Future<void> _onPressed() async {
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log.d("Button pressed");
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setState(() {
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_disableFields = true;
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});
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Scaffold.of(context).showSnackBar(this.showProgress());
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if (!_serverFormKey.currentState.validate()) {
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setState(() {
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_autoValidate = true;
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_disableFields = false;
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});
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Scaffold.of(context).hideCurrentSnackBar();
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return;
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}
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bool resp;
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Uri _botZAddr = Uri.parse(botZController.text);
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Uri _zAddr = Uri.parse(zController.text);
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log.d("Received botZAddr: $_botZAddr\tzAddr: $_zAddr");
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try {
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resp = await verifyServer(_botZAddr, _zAddr);
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log.i("Secret is${resp ? ' ' : ' NOT '}a match");
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} catch (err) {
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log.e("Error: ${err.toString()}");
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showDialog(
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context: context,
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builder: errorDialogBuilder("Error", "${err.toString()}"));
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} finally {
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log.d("Clean the state");
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setState(() {
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_disableFields = false;
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});
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Scaffold.of(context).hideCurrentSnackBar();
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}
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if (!resp) {
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showDialog(
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context: context,
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builder: errorDialogBuilder("Error",
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"The BotZ server does not target the provided Z server."));
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} else {
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_serverFormKey.currentState.save();
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// TODO: go to the next window.
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}
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log.d("Done");
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}
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@override
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Widget build(BuildContext context) {
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return Form(
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key: _serverFormKey,
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child: Column(children: <Widget>[
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TextFormField(
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autofocus: true,
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autocorrect: false,
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controller: zController,
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enabled: !_disableFields,
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decoration: this._textFieldDecoration("Z server", Icons.http),
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validator: this.validateZServer,
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autovalidate: _autoValidate,
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onSaved: (String addr) {
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zAddress = Uri.parse(addr);
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}),
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TextFormField(
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autocorrect: false,
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controller: botZController,
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enabled: !_disableFields,
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decoration: this._textFieldDecoration("BotZ server", Icons.http),
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validator: this.validateServer,
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autovalidate: _autoValidate,
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onSaved: (String addr) {
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botZAddress = Uri.parse(addr);
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}),
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RaisedButton(
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onPressed: _onPressed,
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child: Text('Save'),
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),
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]),
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);
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}
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}
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