ASP.NET 2.0 introduced a concept of application offline. This mean that when there is App_Offline.htm file in the root of a web application directory then ASP.NET will shut-down the application, unload the application domain from the server, and stop processing any new incoming requests for that application. In ASP.NET 5, there is an open-issue for supporting this feature.
using System;
using System.Diagnostics;
using System.Security.Cryptography;
using System.Text;
namespace IdentityHash
{
public static class PBKDF2
{
public static byte[] GenerateSalt()
{
using (var randomNumberGenerator = new RNGCryptoServiceProvider())
{
var randomNumber = new byte[32];
randomNumberGenerator.GetBytes(randomNumber);
return randomNumber;
}
}
public static byte[] HashPassword(byte[] toBeHashed, byte[] salt, int numberOfRounds)
{
using (var rfc2898 = new Rfc2898DeriveBytes(toBeHashed, salt, numberOfRounds))
{
return rfc2898.GetBytes(32);
}
}
}
class Program
{
static void Main(string[] args)
{
var passwordToHash = "VeryComplexPassword";
hashPassword(passwordToHash, 50000);
Console.ReadLine();
}
private static void hashPassword(string passwordToHash, int numberOfRounds)
{
var sw = new Stopwatch();
sw.Start();
var hashedPassword = PBKDF2.HashPassword(
Encoding.UTF8.GetBytes(passwordToHash),
PBKDF2.GenerateSalt(),
numberOfRounds);
sw.Stop();
Console.WriteLine();
Console.WriteLine("Password to hash : {0}", passwordToHash);
Console.WriteLine("Hashed Password : {0}", Convert.ToBase64String(hashedPassword));
Console.WriteLine("Iterations <{0}> Elapsed Time : {1}ms", numberOfRounds, sw.ElapsedMilliseconds);
}
}
} /* =======================
* HASHED PASSWORD FORMATS
* =======================
*
* Version 2:
* PBKDF2 with HMAC-SHA1, 128-bit salt, 256-bit subkey, 1000 iterations.
* (See also: SDL crypto guidelines v5.1, Part III)
* Format: { 0x00, salt, subkey }
*
* Version 3:
* PBKDF2 with HMAC-SHA256, 128-bit salt, 256-bit subkey, 10000 iterations.
* Format: { 0x01, prf (UInt32), iter count (UInt32), salt length (UInt32), salt, subkey }
* (All UInt32s are stored big-endian.)
*/ public static string HashPassword(string password, int numberOfRounds = 1000)
{
if (password == null)
throw new ArgumentNullException("password");
byte[] saltBytes;
byte[] hashedPasswordBytes;
using (var rfc2898DeriveBytes = new Rfc2898DeriveBytes(password, 16, numberOfRounds))
{
saltBytes = rfc2898DeriveBytes.Salt;
hashedPasswordBytes = rfc2898DeriveBytes.GetBytes(32);
}
var outArray = new byte[49];
Buffer.BlockCopy(saltBytes, 0, outArray, 1, 16);
Buffer.BlockCopy(hashedPasswordBytes, 0, outArray, 17, 32);
return Convert.ToBase64String(outArray);
} 
dotnet tool install -g dotnet-ignore
dotnet tool list -g
dotnet tool update -g dotnet-ignore
dotnet tool uninstall -g dotnet-ignore
<PropertyGroup>
<PackAsTool>true</PackAsTool>
<ToolCommandName>dotnet-mytool</ToolCommandName>
<PackageOutputPath>./nupkg</PackageOutputPath>
</PropertyGroup> dotnet tool install --global --add-source ./nupkg globaltools
dotnet-mytool
https://www.nuget.org/packages/McMaster.Extensions.CommandLineUtils
[Command(Description="Add a new note")]
public class NewNote
{
[Required]
[Option(Description="title of note")]
public string Title{ get; set; }
[Option(Description="content of note")]
public string Body{ get; set; }
} [Command(Description="Add a new note")]
public class NewNote:BaseClass
{
[Required]
[Option(Description="title of note")]
public string Title{ get; set; }
[Option(Description="content of note")]
public string Body{ get; set; }
public void OnExecute(IConsole console)
{
var dir = GetBaseDirectory();
if(!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
var filePath = Path.Combine(dir, Title + ".txt");
File.WriteAllText(filePath, Body);
console.WriteLine("the note is saved");
}
} public class BaseClass
{
protected string GetBaseDirectory(){
var baseDirectory = Environment.CurrentDirectory;
return (Path.Combine(baseDirectory, "notes"));
}
} public class List:BaseClass
{
[Option(Description="search a phrase in notes title")]
public string Grep{ get; set; }
public void OnExecute(IConsole console)
{
try
{
var baseDirectory = GetBaseDirectory();
var dir = new DirectoryInfo(baseDirectory);
var files = dir.GetFiles();
foreach(var file in files)
{
if(!String.IsNullOrEmpty(Grep) && !file.Name.Contains(Grep))
continue;
console.WriteLine(Path.GetFileNameWithoutExtension(file.Name));
}
}
catch (Exception e)
{
console.WriteLine(e.Message);
}
}
} [Command(Description="show contnet of note")]
public class Show:BaseClass
{
[Required]
[Option(Description="title of note")]
public string Title{ get; set; }
public void OnExecute(IConsole console){
var baseDirectory = GetBaseDirectory();
var file = Path.Combine(baseDirectory, Title+".txt");
if(!File.Exists(file))
{
console.WriteLine("The Note NotFound...");
return;
}
console.WriteLine(File.ReadAllText(file));
}
} [Command(Description="An Immediate Note Saver")]
[Subcommand(typeof(NewNote),typeof(List),typeof(Show))]
class Program
{
static int Main(string[] args)
{
return CommandLineApplication.Execute<Program>(args);
}
public int OnExecute(CommandLineApplication app, IConsole console)
{
console.WriteLine("You must specify a subcommand.");
console.WriteLine();
app.ShowHelp();
return 1;
}
} static int Main(string[] args)
{
return CommandLineApplication.Execute<Program>(args);
} PS D:\projects\Samples\globaltools> dotnet-notes new-note -t "sample1" -b "this is body" the note is saved PS D:\projects\Samples\globaltools> dotnet-notes new-note -t "test1" -b "this is body of another note" the note is saved PS D:\projects\Samples\globaltools> dotnet-notes list sample1 test1 PS D:\projects\Samples\globaltools> dotnet-notes list -g sa sample1 PS D:\projects\Samples\globaltools> dotnet-notes show -t sample1 this is body
Angular Console VSCode Plugin
