selfprivacy.org.app/lib/logic/providers/server_providers/digital_ocean.dart

702 lines
19 KiB
Dart

import 'dart:convert';
import 'package:easy_localization/easy_localization.dart';
import 'package:selfprivacy/logic/api_maps/rest_maps/server_providers/digital_ocean/digital_ocean_api.dart';
import 'package:selfprivacy/logic/models/callback_dialogue_branching.dart';
import 'package:selfprivacy/logic/models/disk_size.dart';
import 'package:selfprivacy/logic/models/hive/server_details.dart';
import 'package:selfprivacy/logic/models/hive/server_domain.dart';
import 'package:selfprivacy/logic/models/metrics.dart';
import 'package:selfprivacy/logic/models/price.dart';
import 'package:selfprivacy/logic/models/server_basic_info.dart';
import 'package:selfprivacy/logic/models/server_metadata.dart';
import 'package:selfprivacy/logic/models/server_provider_location.dart';
import 'package:selfprivacy/logic/models/server_type.dart';
import 'package:selfprivacy/logic/providers/server_provider.dart';
import 'package:selfprivacy/utils/extensions/string_extensions.dart';
import 'package:selfprivacy/utils/network_utils.dart';
import 'package:selfprivacy/utils/password_generator.dart';
class ApiAdapter {
ApiAdapter({final String? region, final bool isWithToken = true})
: _api = DigitalOceanApi(
region: region,
isWithToken: isWithToken,
);
DigitalOceanApi api({final bool getInitialized = true}) => getInitialized
? _api
: DigitalOceanApi(
region: _api.region,
isWithToken: false,
);
final DigitalOceanApi _api;
}
class DigitalOceanServerProvider extends ServerProvider {
DigitalOceanServerProvider() : _adapter = ApiAdapter();
DigitalOceanServerProvider.load(
final ServerType serverType,
final bool isAuthotized,
) : _adapter = ApiAdapter(
isWithToken: isAuthotized,
region: serverType.location.identifier,
);
ApiAdapter _adapter;
@override
Future<GenericResult<bool>> trySetServerLocation(
final String location,
) async {
final bool apiInitialized = _adapter.api().isWithToken;
if (!apiInitialized) {
return GenericResult(
success: true,
data: false,
message: 'Not authorized!',
);
}
_adapter = ApiAdapter(
isWithToken: true,
region: location,
);
return success;
}
@override
Future<GenericResult<bool>> tryInitApiByToken(final String token) async {
final api = _adapter.api(getInitialized: false);
final result = await api.isApiTokenValid(token);
if (!result.data || !result.success) {
return result;
}
_adapter = ApiAdapter(region: api.region, isWithToken: true);
return result;
}
String? getEmojiFlag(final String query) {
String? emoji;
switch (query.toLowerCase().substring(0, 3)) {
case 'fra':
emoji = '🇩🇪';
break;
case 'ams':
emoji = '🇳🇱';
break;
case 'sgp':
emoji = '🇸🇬';
break;
case 'lon':
emoji = '🇬🇧';
break;
case 'tor':
emoji = '🇨🇦';
break;
case 'blr':
emoji = '🇮🇳';
break;
case 'nyc':
case 'sfo':
emoji = '🇺🇸';
break;
}
return emoji;
}
String dnsProviderToInfectName(final DnsProviderType dnsProvider) {
String dnsProviderType;
switch (dnsProvider) {
case DnsProviderType.digitalOcean:
dnsProviderType = 'DIGITALOCEAN';
break;
case DnsProviderType.cloudflare:
default:
dnsProviderType = 'CLOUDFLARE';
break;
}
return dnsProviderType;
}
@override
Future<GenericResult<CallbackDialogueBranching?>> launchInstallation(
final LaunchInstallationData installationData,
) async {
final serverResult = await _adapter.api().createServer(
dnsApiToken: installationData.dnsApiToken,
rootUser: installationData.rootUser,
domainName: installationData.domainName,
serverType: installationData.serverTypeId,
dnsProviderType:
dnsProviderToInfectName(installationData.dnsProviderType),
hostName: getHostnameFromDomain(installationData.domainName),
base64Password: base64.encode(
utf8.encode(installationData.rootUser.password ?? 'PASS'),
),
databasePassword: StringGenerators.dbPassword(),
serverApiToken: StringGenerators.apiToken(),
);
if (!serverResult.success || serverResult.data == null) {
GenericResult(
data: CallbackDialogueBranching(
choices: [
CallbackDialogueChoice(
title: 'basis.cancel'.tr(),
callback: await installationData.errorCallback(),
),
CallbackDialogueChoice(
title: 'basis.try_again'.tr(),
callback: () async => launchInstallation(installationData),
),
],
description: serverResult.message ?? 'recovering.generic_error'.tr(),
title: 'modals.unexpected_error'.tr(),
),
success: false,
message: serverResult.message,
code: serverResult.code,
);
}
}
@override
Future<GenericResult<List<ServerProviderLocation>>>
getAvailableLocations() async {
final List<ServerProviderLocation> locations = [];
final result = await _adapter.api().getAvailableLocations();
if (result.data.isEmpty || !result.success) {
return GenericResult(
success: result.success,
data: locations,
code: result.code,
message: result.message,
);
}
final List rawLocations = result.data;
for (final rawLocation in rawLocations) {
ServerProviderLocation? location;
try {
location = ServerProviderLocation(
title: rawLocation['slug'],
description: rawLocation['name'],
flag: getEmojiFlag(rawLocation['slug']),
identifier: rawLocation['slug'],
);
} catch (e) {
continue;
}
locations.add(location);
}
return GenericResult(success: true, data: locations);
}
@override
Future<GenericResult<List<ServerType>>> getServerTypes({
required final ServerProviderLocation location,
}) async {
final List<ServerType> types = [];
final result = await _adapter.api().getAvailableServerTypes();
if (result.data.isEmpty || !result.success) {
return GenericResult(
success: result.success,
data: types,
code: result.code,
message: result.message,
);
}
final List rawSizes = result.data;
for (final rawSize in rawSizes) {
for (final rawRegion in rawSize['regions']) {
final ramMb = rawSize['memory'].toDouble();
if (rawRegion.toString() == location.identifier && ramMb > 1024) {
types.add(
ServerType(
title: rawSize['description'],
identifier: rawSize['slug'],
ram: ramMb / 1024,
cores: rawSize['vcpus'],
disk: DiskSize(byte: rawSize['disk'] * 1024 * 1024 * 1024),
price: Price(
value: rawSize['price_monthly'],
currency: 'USD',
),
location: location,
),
);
}
}
}
return GenericResult(success: true, data: types);
}
Future<GenericResult<List<ServerBasicInfo>>> getServers() async {
final List<ServerBasicInfo> servers = [];
final result = await _adapter.api().getServers();
if (result.data.isEmpty || !result.success) {
return GenericResult(
success: result.success,
data: servers,
code: result.code,
message: result.message,
);
}
final List rawServers = result.data;
rawServers.map<ServerBasicInfo>(
(final server) {
String ipv4 = '0.0.0.0';
if (server['networks']['v4'].isNotEmpty) {
for (final v4 in server['networks']['v4']) {
if (v4['type'].toString() == 'public') {
ipv4 = v4['ip_address'].toString();
}
}
}
return ServerBasicInfo(
id: server['id'],
reverseDns: server['name'],
created: DateTime.now(),
ip: ipv4,
name: server['name'],
);
},
).toList();
return GenericResult(success: true, data: servers);
}
Future<GenericResult<List<ServerMetadataEntity>>> getMetadata(
final int serverId,
) async {
List<ServerMetadataEntity> metadata = [];
final result = await _adapter.api().getServers();
if (result.data.isEmpty || !result.success) {
return GenericResult(
success: false,
data: metadata,
code: result.code,
message: result.message,
);
}
final List servers = result.data;
try {
final droplet = servers.firstWhere(
(final server) => server['id'] == serverId,
);
metadata = [
ServerMetadataEntity(
type: MetadataType.id,
trId: 'server.server_id',
value: droplet['id'].toString(),
),
ServerMetadataEntity(
type: MetadataType.status,
trId: 'server.status',
value: droplet['status'].toString().capitalize(),
),
ServerMetadataEntity(
type: MetadataType.cpu,
trId: 'server.cpu',
value: droplet['vcpus'].toString(),
),
ServerMetadataEntity(
type: MetadataType.ram,
trId: 'server.ram',
value: "${droplet['memory'].toString()} MB",
),
ServerMetadataEntity(
type: MetadataType.cost,
trId: 'server.monthly_cost',
value: droplet['size']['price_monthly'].toString(),
),
ServerMetadataEntity(
type: MetadataType.location,
trId: 'server.location',
value:
'${droplet['region']['name']} ${getEmojiFlag(droplet['region']['slug'].toString()) ?? ''}',
),
ServerMetadataEntity(
type: MetadataType.other,
trId: 'server.provider',
value: _adapter.api().displayProviderName,
),
];
} catch (e) {
return GenericResult(
success: false,
data: [],
message: e.toString(),
);
}
return GenericResult(success: true, data: metadata);
}
/// Digital Ocean returns a map of lists of /proc/stat values,
/// so here we are trying to implement average CPU
/// load calculation for each point in time on a given interval.
///
/// For each point of time:
///
/// `Average Load = 100 * (1 - (Idle Load / Total Load))`
///
/// For more info please proceed to read:
/// https://rosettacode.org/wiki/Linux_CPU_utilization
List<TimeSeriesData> calculateCpuLoadMetrics(final List rawProcStatMetrics) {
final List<TimeSeriesData> cpuLoads = [];
final int pointsInTime = (rawProcStatMetrics[0]['values'] as List).length;
for (int i = 0; i < pointsInTime; ++i) {
double currentMetricLoad = 0.0;
double? currentMetricIdle;
for (final rawProcStat in rawProcStatMetrics) {
final String rawProcValue = rawProcStat['values'][i][1];
// Converting MBit into bit
final double procValue = double.parse(rawProcValue) * 1000000;
currentMetricLoad += procValue;
if (currentMetricIdle == null &&
rawProcStat['metric']['mode'] == 'idle') {
currentMetricIdle = procValue;
}
}
currentMetricIdle ??= 0.0;
currentMetricLoad = 100.0 * (1 - (currentMetricIdle / currentMetricLoad));
cpuLoads.add(
TimeSeriesData(
rawProcStatMetrics[0]['values'][i][0],
currentMetricLoad,
),
);
}
return cpuLoads;
}
@override
Future<GenericResult<ServerMetrics?>> getMetrics(
final int serverId,
final DateTime start,
final DateTime end,
) async {
ServerMetrics? metrics;
const int step = 15;
final inboundResult = await _adapter.api().getMetricsBandwidth(
serverId,
start,
end,
true,
);
if (inboundResult.data.isEmpty || !inboundResult.success) {
return GenericResult(
success: false,
data: null,
code: inboundResult.code,
message: inboundResult.message,
);
}
final outboundResult = await _adapter.api().getMetricsBandwidth(
serverId,
start,
end,
false,
);
if (outboundResult.data.isEmpty || !outboundResult.success) {
return GenericResult(
success: false,
data: null,
code: outboundResult.code,
message: outboundResult.message,
);
}
final cpuResult = await _adapter.api().getMetricsCpu(serverId, start, end);
if (cpuResult.data.isEmpty || !cpuResult.success) {
return GenericResult(
success: false,
data: null,
code: cpuResult.code,
message: cpuResult.message,
);
}
metrics = ServerMetrics(
bandwidthIn: inboundResult.data
.map(
(final el) => TimeSeriesData(el[0], double.parse(el[1]) * 100000),
)
.toList(),
bandwidthOut: outboundResult.data
.map(
(final el) => TimeSeriesData(el[0], double.parse(el[1]) * 100000),
)
.toList(),
cpu: calculateCpuLoadMetrics(cpuResult.data),
start: start,
end: end,
stepsInSecond: step,
);
return GenericResult(success: true, data: metrics);
}
@override
Future<GenericResult<DateTime?>> restart(final int serverId) async {
DateTime? timestamp;
final result = await _adapter.api().restart(serverId);
if (!result.success) {
return GenericResult(
success: false,
data: timestamp,
code: result.code,
message: result.message,
);
}
timestamp = DateTime.now();
return GenericResult(
success: true,
data: timestamp,
);
}
Future<GenericResult<CallbackDialogueBranching?>> deleteServer(
final String hostname,
) async {
final String deletionName = getHostnameFromDomain(hostname);
final serversResult = await getServers();
try {
final servers = serversResult.data;
ServerBasicInfo? foundServer;
for (final server in servers) {
if (server.name == deletionName) {
foundServer = server;
break;
}
}
final volumes = await getVolumes();
final ServerVolume volumeToRemove;
volumeToRemove = volumes.data.firstWhere(
(final el) => el.serverId == foundServer!.id,
);
await _adapter.api().detachVolume(
volumeToRemove.name,
volumeToRemove.serverId!,
);
await Future.delayed(const Duration(seconds: 10));
final List<Future> laterFutures = <Future>[];
laterFutures.add(_adapter.api().deleteVolume(volumeToRemove.uuid!));
laterFutures.add(_adapter.api().deleteServer(foundServer!.id));
await Future.wait(laterFutures);
} catch (e) {
print(e);
return GenericResult(
success: false,
data: CallbackDialogueBranching(
choices: [
CallbackDialogueChoice(
title: 'basis.cancel'.tr(),
callback: null,
),
CallbackDialogueChoice(
title: 'basis.try_again'.tr(),
callback: () async {
await Future.delayed(const Duration(seconds: 5));
return deleteServer(hostname);
},
),
],
description: 'modals.try_again'.tr(),
title: 'modals.server_deletion_error'.tr(),
),
message: e.toString(),
);
}
return GenericResult(
success: true,
data: null,
);
}
Future<GenericResult<List<ServerVolume>>> getVolumes({
final String? status,
}) async {
final List<ServerVolume> volumes = [];
final result = await _adapter.api().getVolumes();
if (!result.success || result.data.isEmpty) {
return GenericResult(
data: [],
success: false,
code: result.code,
message: result.message,
);
}
try {
int id = 0;
for (final rawVolume in result.data) {
final volumeId = rawVolume['id'];
final int volumeSize = rawVolume['size_gigabytes'] * 1024 * 1024 * 1024;
final volumeDropletIds = rawVolume['droplet_ids'];
final String volumeName = rawVolume['name'];
final volume = ServerVolume(
id: id++,
name: volumeName,
sizeByte: volumeSize,
serverId: volumeDropletIds.isNotEmpty ? volumeDropletIds[0] : null,
linuxDevice: 'scsi-0DO_Volume_$volumeName',
uuid: volumeId,
);
volumes.add(volume);
}
} catch (e) {
print(e);
return GenericResult(
data: [],
success: false,
message: e.toString(),
);
}
return GenericResult(
data: volumes,
success: true,
);
}
Future<GenericResult<ServerVolume?>> createVolume() async {
ServerVolume? volume;
final result = await _adapter.api().createVolume();
if (!result.success || result.data == null) {
return GenericResult(
data: null,
success: false,
code: result.code,
message: result.message,
);
}
final getVolumesResult = await _adapter.api().getVolumes();
if (!getVolumesResult.success || getVolumesResult.data.isEmpty) {
return GenericResult(
data: null,
success: false,
code: result.code,
message: result.message,
);
}
final volumeId = result.data['volume']['id'];
final volumeSize = result.data['volume']['size_gigabytes'];
final volumeName = result.data['volume']['name'];
volume = ServerVolume(
id: getVolumesResult.data.length,
name: volumeName,
sizeByte: volumeSize,
serverId: null,
linuxDevice: '/dev/disk/by-id/scsi-0DO_Volume_$volumeName',
uuid: volumeId,
);
return GenericResult(
data: volume,
success: true,
);
}
Future<GenericResult<ServerVolume?>> getVolume(
final String volumeUuid,
) async {
ServerVolume? requestedVolume;
final result = await getVolumes();
if (!result.success || result.data.isEmpty) {
return GenericResult(
data: null,
success: false,
code: result.code,
message: result.message,
);
}
for (final volume in result.data) {
if (volume.uuid == volumeUuid) {
requestedVolume = volume;
}
}
return GenericResult(
data: requestedVolume,
success: true,
);
}
Future<GenericResult<void>> deleteVolume(
final ServerVolume volume,
) async =>
_adapter.api().deleteVolume(
volume.uuid!,
);
Future<GenericResult<bool>> attachVolume(
final ServerVolume volume,
final int serverId,
) async =>
_adapter.api().attachVolume(
volume.name,
serverId,
);
Future<GenericResult<bool>> detachVolume(
final ServerVolume volume,
) async =>
_adapter.api().detachVolume(
volume.name,
volume.serverId!,
);
Future<GenericResult<bool>> resizeVolume(
final ServerVolume volume,
final DiskSize size,
) async =>
_adapter.api().resizeVolume(
volume.name,
size,
);
}