Add AddFingerprintCommand

Akari.Prototype.Server/Cli/Commands/FingerprintCommands.cs

@@ -9,6 +9,8 @@ using Spectre.Console;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
 using System.Threading.Tasks;
 
 namespace Akari.Prototype.Server.Cli.Commands
@@ -18,12 +20,19 @@ namespace Akari.Prototype.Server.Cli.Commands
     {
         private readonly IFingerprintManager _fingerprintManager;
 
-        [Command("fp add", Description = "Add a fingerprint")]
-        public class AddFingerprint : ICommand
+        [Command("fp a", Description = "Add a fingerprint")]
+        public class AddFingerprintCommand : ICommand
         {
             [CommandParameter(0, Description = "The fingerprint name")]
             public string Name { get; init; }
 
+            private readonly IFingerprintManager _fingerprintManager;
+
+            public AddFingerprintCommand(IFingerprintManager fingerprintManager)
+            {
+                _fingerprintManager = fingerprintManager;
+            }
+
             public ValueTask ExecuteAsync(IConsole console)
             {
                 if (Name.Length > 50)
@@ -31,6 +40,22 @@ namespace Akari.Prototype.Server.Cli.Commands
                     throw new CommandException("Name can't be more than 50 characters");
                 }
 
+                var data = Encoding.UTF8.GetBytes(Name);
+
+                if (data.Length > TcpProviderService.MaxNameLength)
+                {
+                    throw new CommandException("Name can't be more than 200 bytes (UTF-8)");
+                }
+
+                var hash = Security.NewArgon2idHash(data);
+
+                if (!_fingerprintManager.Add(Name, hash))
+                {
+                    throw new CommandException("A fingerprint with this name is already registered.");
+                }
+
+                console.AsAnsiConsole().Markup($"[green]Successfully added {Name}:\n{hash}[/]");
+
                 return default;
             }
         }

Akari.Prototype.Server/Program.cs

@@ -76,6 +76,7 @@ namespace Akari.Prototype.Server
 
                     services.AddTransient<FingerprintCommands>();
                     services.AddTransient<FingerprintCommands.RemoveFingerprintCommand>();
+                    services.AddTransient<FingerprintCommands.AddFingerprintCommand>();
                 });
 
         public static IHostBuilder CreateWebHostBuilder(string[] args) =>