mirror of
https://github.com/lollipopkit/flutter_server_box.git
synced 2025-12-17 07:14:28 +01:00
332 lines
11 KiB
Dart
332 lines
11 KiB
Dart
import 'dart:async';
|
|
import 'dart:convert';
|
|
|
|
import 'package:dartssh2/dartssh2.dart';
|
|
import 'package:flutter/foundation.dart';
|
|
import 'package:logging/logging.dart';
|
|
import 'package:toolbox/core/extension/stringx.dart';
|
|
import 'package:toolbox/core/provider_base.dart';
|
|
import 'package:toolbox/data/model/server/cpu_2_status.dart';
|
|
import 'package:toolbox/data/model/server/cpu_status.dart';
|
|
import 'package:toolbox/data/model/server/memory.dart';
|
|
import 'package:toolbox/data/model/server/net_speed.dart';
|
|
import 'package:toolbox/data/model/server/server_connection_state.dart';
|
|
import 'package:toolbox/data/model/server/disk_info.dart';
|
|
import 'package:toolbox/data/model/server/server.dart';
|
|
import 'package:toolbox/data/model/server/server_private_info.dart';
|
|
import 'package:toolbox/data/model/server/server_status.dart';
|
|
import 'package:toolbox/data/model/server/snippet.dart';
|
|
import 'package:toolbox/data/model/server/tcp_status.dart';
|
|
import 'package:toolbox/data/store/private_key.dart';
|
|
import 'package:toolbox/data/store/server.dart';
|
|
import 'package:toolbox/data/store/setting.dart';
|
|
import 'package:toolbox/locator.dart';
|
|
|
|
/// Must put this func out of any Class.
|
|
/// Because of this function is called by [compute] in [ServerProvider.genClient].
|
|
/// https://stackoverflow.com/questions/51998995/invalid-arguments-illegal-argument-in-isolate-message-object-is-a-closure
|
|
List<SSHKeyPair> loadIndentity(String key) {
|
|
return SSHKeyPair.fromPem(key);
|
|
}
|
|
|
|
class ServerProvider extends BusyProvider {
|
|
List<ServerInfo> _servers = [];
|
|
List<ServerInfo> get servers => _servers;
|
|
|
|
Timer? _timer;
|
|
|
|
final logger = Logger('ServerProvider');
|
|
|
|
Memory get emptyMemory =>
|
|
Memory(total: 1, used: 0, free: 1, shared: 0, cache: 0, avail: 1);
|
|
|
|
NetSpeedPart get emptyNetSpeedPart => NetSpeedPart('', 0, 0, 0);
|
|
|
|
NetSpeed get emptyNetSpeed =>
|
|
NetSpeed([emptyNetSpeedPart], [emptyNetSpeedPart]);
|
|
|
|
CpuStatus get emptyCpuStatus => CpuStatus('cpu', 0, 0, 0, 0, 0, 0, 0);
|
|
|
|
Cpu2Status get emptyCpu2Status =>
|
|
Cpu2Status([emptyCpuStatus], [emptyCpuStatus], '');
|
|
|
|
ServerStatus get emptyStatus => ServerStatus(
|
|
emptyCpu2Status,
|
|
emptyMemory,
|
|
'Loading...',
|
|
'',
|
|
[DiskInfo('/', '/', 0, '0', '0', '0')],
|
|
TcpStatus(0, 0, 0, 0),
|
|
emptyNetSpeed);
|
|
|
|
Future<void> loadLocalData() async {
|
|
setBusyState(true);
|
|
final infos = locator<ServerStore>().fetch();
|
|
_servers = List.generate(infos.length, (index) => genInfo(infos[index]));
|
|
setBusyState(false);
|
|
notifyListeners();
|
|
}
|
|
|
|
ServerInfo genInfo(ServerPrivateInfo spi) {
|
|
return ServerInfo(
|
|
spi, emptyStatus, null, ServerConnectionState.disconnected);
|
|
}
|
|
|
|
Future<SSHClient> genClient(ServerPrivateInfo spi) async {
|
|
final socket = await SSHSocket.connect(spi.ip, spi.port);
|
|
if (spi.pubKeyId == null) {
|
|
return SSHClient(socket,
|
|
username: spi.user,
|
|
onPasswordRequest: () => spi.authorization as String);
|
|
}
|
|
final key = locator<PrivateKeyStore>().get(spi.pubKeyId!);
|
|
return SSHClient(socket,
|
|
username: spi.user,
|
|
identities: await compute(loadIndentity, key.privateKey));
|
|
}
|
|
|
|
Future<void> refreshData({ServerPrivateInfo? spi}) async {
|
|
if (spi != null) {
|
|
_getData(spi);
|
|
return;
|
|
}
|
|
try {
|
|
await Future.wait(_servers.map((s) async {
|
|
await _getData(s.info);
|
|
}));
|
|
} catch (e) {
|
|
if (e is! RangeError) {
|
|
rethrow;
|
|
}
|
|
}
|
|
}
|
|
|
|
Future<void> startAutoRefresh() async {
|
|
final duration =
|
|
locator<SettingStore>().serverStatusUpdateInterval.fetch()!;
|
|
if (duration == 0) return;
|
|
stopAutoRefresh();
|
|
_timer = Timer.periodic(Duration(seconds: duration), (_) async {
|
|
await refreshData();
|
|
});
|
|
}
|
|
|
|
void stopAutoRefresh() {
|
|
if (_timer != null) {
|
|
_timer!.cancel();
|
|
_timer = null;
|
|
}
|
|
}
|
|
|
|
void setDisconnected() {
|
|
for (var i = 0; i < _servers.length; i++) {
|
|
_servers[i].connectionState = ServerConnectionState.disconnected;
|
|
}
|
|
}
|
|
|
|
void addServer(ServerPrivateInfo spi) {
|
|
_servers.add(genInfo(spi));
|
|
locator<ServerStore>().put(spi);
|
|
notifyListeners();
|
|
refreshData(spi: spi);
|
|
}
|
|
|
|
void delServer(ServerPrivateInfo info) {
|
|
final idx = _servers.indexWhere((s) => s.info == info);
|
|
_servers[idx].client?.close();
|
|
_servers.removeAt(idx);
|
|
notifyListeners();
|
|
locator<ServerStore>().delete(info);
|
|
}
|
|
|
|
Future<void> updateServer(
|
|
ServerPrivateInfo old, ServerPrivateInfo newSpi) async {
|
|
final idx = _servers.indexWhere((e) => e.info == old);
|
|
_servers[idx].info = newSpi;
|
|
_servers[idx].client = await genClient(newSpi);
|
|
locator<ServerStore>().update(old, newSpi);
|
|
notifyListeners();
|
|
refreshData(spi: newSpi);
|
|
}
|
|
|
|
Future<void> _getData(ServerPrivateInfo spi) async {
|
|
final idx = _servers.indexWhere((element) => element.info == spi);
|
|
final state = _servers[idx].connectionState;
|
|
if (_servers[idx].client == null ||
|
|
state == ServerConnectionState.failed ||
|
|
state == ServerConnectionState.disconnected) {
|
|
_servers[idx].connectionState = ServerConnectionState.connecting;
|
|
notifyListeners();
|
|
final time1 = DateTime.now();
|
|
try {
|
|
_servers[idx].client = await genClient(spi);
|
|
final time2 = DateTime.now();
|
|
logger.info(
|
|
'Connected to [${spi.name}] in [${time2.difference(time1).toString()}].');
|
|
_servers[idx].connectionState = ServerConnectionState.connected;
|
|
notifyListeners();
|
|
} catch (e) {
|
|
_servers[idx].connectionState = ServerConnectionState.failed;
|
|
_servers[idx].status.failedInfo = e.toString() + ' ## ';
|
|
notifyListeners();
|
|
logger.warning(e);
|
|
}
|
|
}
|
|
final si = _servers[idx];
|
|
try {
|
|
if (si.client == null) return;
|
|
final raw = utf8.decode(await si.client!.run(
|
|
r"cat /proc/net/dev && date +%s && echo 'A====A' && cat /etc/os-release | grep PRETTY_NAME && echo 'A====A' && cat /proc/stat | grep cpu && echo 'A====A' && paste <(cat /sys/class/thermal/thermal_zone*/type) <(cat /sys/class/thermal/thermal_zone*/temp) | column -s $'\t' -t | sed 's/\(.\)..$/.\1°C/' && echo 'A====A' && uptime && echo 'A====A' && cat /proc/net/snmp && echo 'A====A' && df -h && echo 'A====A' && free -m"));
|
|
final lines = raw.split('A====A').map((e) => e.trim()).toList();
|
|
_getCPU(spi, lines[2], lines[3]);
|
|
_getMem(spi, lines[7]);
|
|
_getSysVer(spi, lines[1]);
|
|
_getUpTime(spi, lines[4]);
|
|
_getDisk(spi, lines[6]);
|
|
_getTcp(spi, lines[5]);
|
|
_getNetSpeed(spi, lines[0]);
|
|
} catch (e) {
|
|
_servers[idx].connectionState = ServerConnectionState.failed;
|
|
servers[idx].status.failedInfo = e.toString();
|
|
notifyListeners();
|
|
logger.warning(e);
|
|
}
|
|
}
|
|
|
|
/// [raw] example:
|
|
/// Inter-| Receive | Transmit
|
|
/// face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
|
|
/// lo: 45929941 269112 0 0 0 0 0 0 45929941 269112 0 0 0 0 0 0
|
|
/// eth0: 48481023 505772 0 0 0 0 0 0 36002262 202307 0 0 0 0 0 0
|
|
/// 1635752901
|
|
Future<void> _getNetSpeed(ServerPrivateInfo spi, String raw) async {
|
|
final info = _servers.firstWhere((e) => e.info == spi);
|
|
final split = raw.split('\n');
|
|
final deviceCount = split.length - 3;
|
|
if (deviceCount < 1) return;
|
|
final time = int.parse(split[split.length - 1]);
|
|
final results = <NetSpeedPart>[];
|
|
for (int idx = 2; idx < deviceCount; idx++) {
|
|
final data = split[idx].trim().split(':');
|
|
final device = data.first;
|
|
final bytes = data.last.trim().split(' ');
|
|
bytes.removeWhere((element) => element == '');
|
|
final bytesIn = int.parse(bytes.first);
|
|
final bytesOut = int.parse(bytes[8]);
|
|
results.add(NetSpeedPart(device, bytesIn, bytesOut, time));
|
|
}
|
|
info.status.netSpeed = info.status.netSpeed.update(results);
|
|
notifyListeners();
|
|
}
|
|
|
|
Future<void> _getSysVer(ServerPrivateInfo spi, String raw) async {
|
|
final info = _servers.firstWhere((e) => e.info == spi);
|
|
final s = raw.split('=');
|
|
if (s.length == 2) {
|
|
info.status.sysVer = s[1].replaceAll('"', '').replaceFirst('\n', '');
|
|
} else {
|
|
info.status.sysVer = '';
|
|
}
|
|
|
|
notifyListeners();
|
|
}
|
|
|
|
String _getCPUTemp(String raw) {
|
|
final split = raw.split('\n');
|
|
for (var item in split) {
|
|
if (item.contains('x86_pkg_temp') || item.contains('cpu_thermal')) {
|
|
return item.split(' ').last;
|
|
}
|
|
}
|
|
return '';
|
|
}
|
|
|
|
Future<void> _getCPU(ServerPrivateInfo spi, String raw, String temp) async {
|
|
final info = _servers.firstWhere((e) => e.info == spi);
|
|
final List<CpuStatus> cpus = [];
|
|
|
|
for (var item in raw.split('\n')) {
|
|
if (item == '') break;
|
|
final id = item.split(' ').first;
|
|
final matches = item.replaceFirst(id, '').trim().split(' ');
|
|
cpus.add(CpuStatus(
|
|
id,
|
|
int.parse(matches[0]),
|
|
int.parse(matches[1]),
|
|
int.parse(matches[2]),
|
|
int.parse(matches[3]),
|
|
int.parse(matches[4]),
|
|
int.parse(matches[5]),
|
|
int.parse(matches[6])));
|
|
}
|
|
if (cpus.isEmpty) {
|
|
info.status.cpu2Status = emptyCpu2Status;
|
|
} else {
|
|
info.status.cpu2Status =
|
|
info.status.cpu2Status.update(cpus, _getCPUTemp(temp));
|
|
}
|
|
|
|
notifyListeners();
|
|
}
|
|
|
|
Future<void> _getUpTime(ServerPrivateInfo spi, String raw) async {
|
|
_servers.firstWhere((e) => e.info == spi).status.uptime =
|
|
raw.split('up ')[1].split(', ')[0];
|
|
notifyListeners();
|
|
}
|
|
|
|
Future<void> _getTcp(ServerPrivateInfo spi, String raw) async {
|
|
final info = _servers.firstWhere((e) => e.info == spi);
|
|
final lines = raw.split('\n');
|
|
final idx = lines.lastWhere((element) => element.startsWith('Tcp:'),
|
|
orElse: () => '');
|
|
if (idx != '') {
|
|
final vals = idx.split(RegExp(r'\s{1,}'));
|
|
info.status.tcp = TcpStatus(vals[5].i, vals[6].i, vals[7].i, vals[8].i);
|
|
} else {
|
|
info.status.tcp = TcpStatus(0, 0, 0, 0);
|
|
}
|
|
notifyListeners();
|
|
}
|
|
|
|
Future<void> _getDisk(ServerPrivateInfo spi, String raw) async {
|
|
final info = _servers.firstWhere((e) => e.info == spi);
|
|
final list = <DiskInfo>[];
|
|
final items = raw.split('\n');
|
|
for (var item in items) {
|
|
if (items.indexOf(item) == 0 || item.isEmpty) {
|
|
continue;
|
|
}
|
|
final vals = item.split(RegExp(r'\s{1,}'));
|
|
list.add(DiskInfo(vals[0], vals[5],
|
|
int.parse(vals[4].replaceFirst('%', '')), vals[2], vals[1], vals[3]));
|
|
}
|
|
info.status.disk = list;
|
|
notifyListeners();
|
|
}
|
|
|
|
Future<void> _getMem(ServerPrivateInfo spi, String raw) async {
|
|
final info = _servers.firstWhere((e) => e.info == spi);
|
|
for (var item in raw.split('\n')) {
|
|
if (item.contains('Mem:')) {
|
|
final split = item.replaceFirst('Mem:', '').split(' ');
|
|
split.removeWhere((e) => e == '');
|
|
final memList = split.map((e) => int.parse(e)).toList();
|
|
info.status.memory = Memory(
|
|
total: memList[0],
|
|
used: memList[1],
|
|
free: memList[2],
|
|
shared: memList[3],
|
|
cache: memList[4],
|
|
avail: memList[5]);
|
|
}
|
|
}
|
|
notifyListeners();
|
|
}
|
|
|
|
Future<String?> runSnippet(int idx, Snippet snippet) async {
|
|
final result = await _servers[idx].client!.run(snippet.script);
|
|
return utf8.decode(result);
|
|
}
|
|
}
|