update to .net 8

.editorconfig

@@ -0,0 +1,6 @@
+[*.cs]
+max_line_length = 130
+charset = utf-8
+insert_final_newline = true
+indent_style = tab
+trim_trailing_whitespace = true

.github/workflows/dotnet.yml

@@ -15,14 +15,14 @@ jobs:
       with:
         dotnet-version: ${{ env.DOTNET_SDK_VERSION }}
     - name: Publish generic
-      run: dotnet publish -c Release -o out/generic -p:UseAppHost=false
+      run: dotnet publish YandexKeyExtractor/YandexKeyExtractor.csproj -c Release -o out/generic -p:UseAppHost=false
     - name: Upload generic artifacts
       uses: actions/upload-artifact@v4
       with:
         name: ${{ github.event.repository.name }}
         path: out/generic
     - name: Publish Windows version
-      run: dotnet publish -c Release -o out/win -p:PublishSingleFile=true -p:PublishTrimmed=true -r win-x64
+      run: dotnet publish YandexKeyExtractor/YandexKeyExtractor.csproj -c Release -o out/win -p:PublishSingleFile=true -p:PublishTrimmed=true -r win-x64
     - name: Upload Windows artifacts
       uses: actions/upload-artifact@v4
       with:

YandexKeyExtractor/Decryptor.cs

@@ -3,41 +3,49 @@ using System.Text;
 using CryptSharp.Utility;
 using NaCl;
 
-namespace YandexKeyExtractor {
-	public static class Decryptor {
-		public static string? Decrypt(string encryptedText, string password) {
-			string base64Text = NormalizeBase64(encryptedText);
+namespace YandexKeyExtractor;
 
-			ReadOnlySpan<byte> textBytes = Convert.FromBase64String(base64Text).AsSpan();
+public static class Decryptor
+{
+	public static string? Decrypt(string encryptedText, string password)
+	{
+		var base64Text = NormalizeBase64(encryptedText);
 
-			const byte saltLength = 16;
-			ReadOnlySpan<byte> textData = textBytes[..^saltLength];
-			ReadOnlySpan<byte> textSalt = textBytes[^saltLength..];
+		ReadOnlySpan<byte> textBytes = Convert.FromBase64String(base64Text).AsSpan();
 
-			byte[]? generatedPassword = SCrypt.ComputeDerivedKey(Encoding.UTF8.GetBytes(password), textSalt.ToArray(), 32768, 20, 1, null, 32);
+		const byte SaltLength = 16;
+		var textData = textBytes[..^SaltLength];
+		var textSalt = textBytes[^SaltLength..];
 
-			using XSalsa20Poly1305 secureBox = new(generatedPassword);
+		var generatedPassword = SCrypt.ComputeDerivedKey(
+			Encoding.UTF8.GetBytes(password), textSalt.ToArray(), 32768, 20, 1, null, 32
+		);
 
-			const byte nonceLength = 24;
-			ReadOnlySpan<byte> nonce = textData[..nonceLength];
-			ReadOnlySpan<byte> dataWithMac = textData[nonceLength..];
+		using XSalsa20Poly1305 secureBox = new(generatedPassword);
+
+		const byte NonceLength = 24;
+		var nonce = textData[..NonceLength];
+		var dataWithMac = textData[NonceLength..];
 
 
-			Span<byte> message = dataWithMac.Length <= 4096 ? stackalloc byte[dataWithMac.Length] : new byte[dataWithMac.Length];
+		var message = dataWithMac.Length <= 4096 ? stackalloc byte[dataWithMac.Length] : new byte[dataWithMac.Length];
 
-			const byte macLength = 16;
-			ReadOnlySpan<byte> data = dataWithMac[macLength..];
-			ReadOnlySpan<byte> mac = dataWithMac[..macLength];
+		const byte MacLength = 16;
+		var data = dataWithMac[MacLength..];
+		var mac = dataWithMac[..MacLength];
 
-			return secureBox.TryDecrypt(message, data, mac, nonce) ? new string(Encoding.UTF8.GetString(message).TrimEnd('\0')) : null;
-		}
+		return secureBox.TryDecrypt(message, data, mac, nonce)
+			? new string(Encoding.UTF8.GetString(message).TrimEnd('\0'))
+			: null;
+	}
 
-		private static string NormalizeBase64(string encryptedText) {
-			return encryptedText.Replace('-', '+').Replace('_', '/') + (encryptedText.Length % 4) switch {
-				2 => "==",
-				3 => "=",
-				_ => ""
-			};
-		}
+	private static string NormalizeBase64(string encryptedText)
+	{
+		return encryptedText.Replace('-', '+').Replace('_', '/') + (encryptedText.Length % 4) switch
+		{
+			2 => "==",
+			3 => "=",
+			_ => ""
+		};
 	}
 }

YandexKeyExtractor/Program.cs

@@ -1,65 +1,61 @@
 using System;
 using System.IO;
 using System.Runtime.CompilerServices;
-using System.Threading.Tasks;
+using YandexKeyExtractor;
 
-namespace YandexKeyExtractor {
-	internal static class Program {
-		private static async Task Main() {
-			Console.WriteLine("Initializing...");
-			using WebHandler handler = WebHandler.Create();
+Console.WriteLine("Initializing...");
+using var handler = WebHandler.Create();
 
-			string country = await handler.TryGetCountry().ConfigureAwait(false);
+var country = await handler.TryGetCountry();
 
-			PromptInput(out string phoneNumber, nameof(phoneNumber));
+PromptInput(out var phoneNumber);
 
-			phoneNumber = phoneNumber.TrimStart('+');
-			string phone = await handler.GetPhoneNumberInfo(phoneNumber, country).ConfigureAwait(false);
+phoneNumber = phoneNumber.TrimStart('+');
+var phone = await handler.GetPhoneNumberInfo(phoneNumber, country);
 
-			string? trackID = await handler.SendSMSCodeAndGetTrackID(phone, country).ConfigureAwait(false);
-			if (string.IsNullOrEmpty(trackID)) {
-				return;
-			}
-
-			PromptInput(out string smsCode, nameof(smsCode));
-
-			if (!await handler.CheckCode(smsCode, trackID).ConfigureAwait(false)) {
-				return;
-			}
-
-			if (!await handler.ValidateBackupInfo(phone, trackID, country).ConfigureAwait(false)) {
-				return;
-			}
-
-			string? backup = await handler.GetBackupData(phone, trackID).ConfigureAwait(false);
-			if (string.IsNullOrEmpty(backup)) {
-				return;
-			}
-
-			PromptInput(out string backupPassword, nameof(backupPassword));
-
-			Console.WriteLine("Decrypting...");
-			string? message = Decryptor.Decrypt(backup, backupPassword);
-			if (string.IsNullOrEmpty(message)) {
-				Console.WriteLine("Decryption failed!");
-
-				return;
-			}
-
-			Console.WriteLine("Successfully decrypted!");
-			await File.WriteAllTextAsync("result.txt", message).ConfigureAwait(false);
-			Console.WriteLine($"Written {message.Split('\n').Length} authenticators to result file");
-		}
-
-		private static void PromptInput(out string result, [CallerArgumentExpression("result")] string argumentName = "") {
-			Console.WriteLine($"Enter {argumentName}:");
-			string? input = Console.ReadLine();
-			while (string.IsNullOrEmpty(input)) {
-				Console.WriteLine($"{argumentName} is invalid, try again:");
-				input = Console.ReadLine();
-			}
-
-			result = input;
-		}
-	}
+var trackID = await handler.SendSMSCodeAndGetTrackID(phone, country);
+if (string.IsNullOrEmpty(trackID)) {
+	return;
+}
+
+PromptInput(out var smsCode);
+
+if (!await handler.CheckCode(smsCode, trackID)) {
+	return;
+}
+
+if (!await handler.ValidateBackupInfo(phone, trackID, country)) {
+	return;
+}
+
+var backup = await handler.GetBackupData(phone, trackID);
+if (string.IsNullOrEmpty(backup)) {
+	return;
+}
+
+PromptInput(out var backupPassword);
+
+Console.WriteLine("Decrypting...");
+var message = Decryptor.Decrypt(backup, backupPassword);
+if (string.IsNullOrEmpty(message)) {
+	Console.WriteLine("Decryption failed!");
+
+	return;
+}
+
+Console.WriteLine("Successfully decrypted!");
+await File.WriteAllTextAsync("result.txt", message);
+Console.WriteLine($"Written {message.Split('\n').Length} authenticators to result file");
+
+return;
+
+static void PromptInput(out string result, [CallerArgumentExpression("result")] string argumentName = "") {
+	Console.WriteLine($"Enter {argumentName}:");
+	var input = Console.ReadLine();
+	while (string.IsNullOrEmpty(input)) {
+		Console.WriteLine($"{argumentName} is invalid, try again:");
+		input = Console.ReadLine();
+	}
+
+	result = input;
 }

YandexKeyExtractor/WebHandler.cs

@@ -11,167 +11,188 @@ using Flurl.Http;
 using Flurl.Serialization.TextJson;
 using YandexKeyExtractor.Models;
 
-namespace YandexKeyExtractor {
-	public sealed class WebHandler : IDisposable {
-		private WebHandler(IFlurlClient client) => Client = client;
-		private IFlurlClient Client { get; }
+namespace YandexKeyExtractor;
 
-		public void Dispose() {
-			Client.Dispose();
-		}
+public sealed class WebHandler : IDisposable
+{
+	private WebHandler(IFlurlClient client) => Client = client;
+	private IFlurlClient Client { get; }
 
-		public async Task<bool> CheckCode(string? smsCode, string? trackID) {
-			StatusResponse? checkCodeResponse = await Client.Request("/bundle/yakey_backup/check_code/")
-				.PostUrlEncodedAsync(
-					new {
-						code = smsCode,
-						track_id = trackID
-					}
-				)
-				.ReceiveJson<StatusResponse?>()
-				.ConfigureAwait(false);
+	public void Dispose()
+	{
+		Client.Dispose();
+	}
 
-			return ValidateResponse(checkCodeResponse, nameof(checkCodeResponse));
-		}
-
-		public static WebHandler Create() {
-			JsonSerializerOptions jsonSettings = new() {
-				DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
-			};
-
-			IFlurlClient? client = new FlurlClient(
-				new HttpClient {
-					DefaultRequestHeaders = { UserAgent = { new ProductInfoHeaderValue("okhttp", "2.7.5") } },
-					BaseAddress = new Uri("https://registrator.mobile.yandex.net/1/")
+	public async Task<bool> CheckCode(string? smsCode, string? trackID)
+	{
+		var checkCodeResponse = await Client.Request("/bundle/yakey_backup/check_code/")
+			.PostUrlEncodedAsync(
+				new
+				{
+					code = smsCode,
+					track_id = trackID
 				}
-			).Configure(settings => settings.WithTextJsonSerializer(jsonSettings));
+			)
+			.ReceiveJson<StatusResponse?>();
 
-			return new WebHandler(client);
-		}
+		return ValidateResponse(checkCodeResponse, nameof(checkCodeResponse));
+	}
 
-		public async Task<string?> GetBackupData(string phone, string? trackID) {
-			BackupResponse? backupResponse = await Client.Request("/bundle/yakey_backup/download")
-				.PostUrlEncodedAsync(
-					new {
-						number = phone,
-						track_id = trackID
-					}
-				)
-				.ReceiveJson<BackupResponse?>()
-				.ConfigureAwait(false);
+	public static WebHandler Create()
+	{
+		JsonSerializerOptions jsonSettings = new()
+		{
+			DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
+		};
 
-			if (!ValidateResponse(backupResponse, nameof(backupResponse))) {
-				return null;
+		var client = new FlurlClient(
+			new HttpClient
+			{
+				DefaultRequestHeaders = {UserAgent = {new ProductInfoHeaderValue("okhttp", "2.7.5")}},
+				BaseAddress = new Uri("https://registrator.mobile.yandex.net/1/")
 			}
+		).Configure(settings => settings.WithTextJsonSerializer(jsonSettings));
 
-			if (string.IsNullOrEmpty(backupResponse.Backup)) {
-				Console.WriteLine("Fatal error - Couldn't find valid backup!");
+		return new WebHandler(client);
+	}
 
-				return null;
-			}
-
-			return backupResponse.Backup;
-		}
-
-		public async Task<string> GetPhoneNumberInfo(string? phoneNumber, string country) {
-			PhoneNumberResponse? phoneNumberResponse = await Client.Request("/bundle/validate/phone_number/")
-				.PostUrlEncodedAsync(
-					new {
-						phone_number = phoneNumber,
-						country
-					}
-				).ReceiveJson<PhoneNumberResponse?>()
-				.ConfigureAwait(false);
-
-			ValidateResponse(phoneNumberResponse, nameof(phoneNumberResponse));
-
-			string phone = phoneNumberResponse?.PhoneNumber?.StandardizedNumber ?? '+' + phoneNumber;
-
-			return phone;
-		}
-
-		public async Task<string?> SendSMSCodeAndGetTrackID(string phone, string country) {
-			TrackResponse? trackResponse = await Client.Request("/bundle/yakey_backup/send_code/")
-				.PostUrlEncodedAsync(
-					new {
-						display_language = "en",
-						number = phone,
-						country
-					}
-				)
-				.ReceiveJson<TrackResponse?>()
-				.ConfigureAwait(false);
-
-			if (!ValidateResponse(trackResponse, nameof(trackResponse))) {
-				return null;
-			}
-
-			string? trackID = trackResponse.TrackID;
-			if (string.IsNullOrEmpty(trackID)) {
-				Console.WriteLine("Track ID is empty!");
-
-				return null;
-			}
-
-			return trackID;
-		}
-
-		public async Task<string> TryGetCountry() {
-			CountryResponse? countryResponse = await Client.Request("/suggest/country")
-				.GetAsync()
-				.ReceiveJson<CountryResponse?>()
-				.ConfigureAwait(false);
-
-			ValidateResponse(countryResponse, nameof(countryResponse));
-
-			string country = countryResponse?.Country?.FirstOrDefault() ?? "ru";
-
-			return country;
-		}
-
-		public async Task<bool> ValidateBackupInfo(string phone, string? trackID, string country) {
-			BackupInfoResponse? backupInfoResponse = await Client.Request("/bundle/yakey_backup/info/")
-				.PostUrlEncodedAsync(
-					new {
-						number = phone,
-						track_id = trackID,
-						country
-					}
-				)
-				.ReceiveJson<BackupInfoResponse?>()
-				.ConfigureAwait(false);
-
-			if (!ValidateResponse(backupInfoResponse, nameof(backupInfoResponse))) {
-				return false;
-			}
-
-			if (backupInfoResponse.Info?.Updated == null) {
-				Console.WriteLine("Fatal error - Couldn't find valid backup!");
-
-				return false;
-			}
-
-			return true;
-		}
-
-
-		private static bool ValidateResponse<T>([NotNullWhen(true)] T? response, [CallerArgumentExpression("response")] string responseName = "") where T : StatusResponse {
-			if (response == null) {
-				Console.WriteLine(responseName + " failed!");
-
-				return false;
-			}
-
-			if (!response.IsSuccess) {
-				Console.WriteLine(responseName + $" failed with error {response.Status}!");
-				if (response.Errors != null) {
-					Console.WriteLine("Errors: " + string.Join(',', response.Errors));
+	public async Task<string?> GetBackupData(string phone, string? trackID)
+	{
+		var backupResponse = await Client.Request("/bundle/yakey_backup/download")
+			.PostUrlEncodedAsync(
+				new
+				{
+					number = phone,
+					track_id = trackID
 				}
+			)
+			.ReceiveJson<BackupResponse?>();
 
-				return false;
+		if (!ValidateResponse(backupResponse, nameof(backupResponse)))
+		{
+			return null;
+		}
+
+		if (string.IsNullOrEmpty(backupResponse.Backup))
+		{
+			Console.WriteLine("Fatal error - Couldn't find valid backup!");
+
+			return null;
+		}
+
+		return backupResponse.Backup;
+	}
+
+	public async Task<string> GetPhoneNumberInfo(string? phoneNumber, string country)
+	{
+		var phoneNumberResponse = await Client.Request("/bundle/validate/phone_number/")
+			.PostUrlEncodedAsync(
+				new
+				{
+					phone_number = phoneNumber,
+					country
+				}
+			).ReceiveJson<PhoneNumberResponse?>();
+
+		ValidateResponse(phoneNumberResponse, nameof(phoneNumberResponse));
+
+		var phone = phoneNumberResponse?.PhoneNumber?.StandardizedNumber ?? '+' + phoneNumber;
+
+		return phone;
+	}
+
+	public async Task<string?> SendSMSCodeAndGetTrackID(string phone, string country)
+	{
+		var trackResponse = await Client.Request("/bundle/yakey_backup/send_code/")
+			.PostUrlEncodedAsync(
+				new
+				{
+					display_language = "en",
+					number = phone,
+					country
+				}
+			)
+			.ReceiveJson<TrackResponse?>();
+
+		if (!ValidateResponse(trackResponse, nameof(trackResponse)))
+		{
+			return null;
+		}
+
+		var trackID = trackResponse.TrackID;
+		if (string.IsNullOrEmpty(trackID))
+		{
+			Console.WriteLine("Track ID is empty!");
+
+			return null;
+		}
+
+		return trackID;
+	}
+
+	public async Task<string> TryGetCountry()
+	{
+		var countryResponse = await Client.Request("/suggest/country")
+			.GetAsync()
+			.ReceiveJson<CountryResponse?>();
+
+		ValidateResponse(countryResponse, nameof(countryResponse));
+
+		var country = countryResponse?.Country?.FirstOrDefault() ?? "ru";
+
+		return country;
+	}
+
+	public async Task<bool> ValidateBackupInfo(string phone, string? trackID, string country)
+	{
+		var backupInfoResponse = await Client.Request("/bundle/yakey_backup/info/")
+			.PostUrlEncodedAsync(
+				new
+				{
+					number = phone,
+					track_id = trackID,
+					country
+				}
+			)
+			.ReceiveJson<BackupInfoResponse?>();
+
+		if (!ValidateResponse(backupInfoResponse, nameof(backupInfoResponse)))
+		{
+			return false;
+		}
+
+		if (backupInfoResponse.Info?.Updated == null)
+		{
+			Console.WriteLine("Fatal error - Couldn't find valid backup!");
+
+			return false;
+		}
+
+		return true;
+	}
+
+
+	private static bool ValidateResponse<T>([NotNullWhen(true)] T? response,
+		[CallerArgumentExpression("response")] string responseName = "") where T : StatusResponse
+	{
+		if (response == null)
+		{
+			Console.WriteLine(responseName + " failed!");
+
+			return false;
+		}
+
+		if (!response.IsSuccess)
+		{
+			Console.WriteLine(responseName + $" failed with error {response.Status}!");
+			if (response.Errors != null)
+			{
+				Console.WriteLine("Errors: " + string.Join(',', response.Errors));
 			}
 
-			return true;
+			return false;
 		}
+
+		return true;
 	}
 }

YandexKeyExtractor/YandexKeyExtractor.csproj

@@ -5,7 +5,7 @@
 		<FileVersion>1.0.0.0</FileVersion>
 		<Nullable>enable</Nullable>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net8.0</TargetFramework>
 	</PropertyGroup>
 
 	<!-- Trimming features -->
@@ -19,10 +19,6 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="ConfigureAwaitChecker.Analyzer" Version="5.0.0.1">
-			<PrivateAssets>all</PrivateAssets>
-			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-		</PackageReference>
 		<PackageReference Include="CryptSharpStandard" Version="1.0.0" />
 		<PackageReference Include="Flurl.Http" Version="3.2.4" />
 		<PackageReference Include="Flurl.Serialization.TextJson" Version="3.1.0" />