feat(config): Allow users to be set by command line args

Rnwood.Smtp4dev.Tests/CommandLine/ParseCommandLineTests.cs

@@ -32,5 +32,18 @@ public void SmtpPortMustBeValidTcpPort(int portNumber)
             Action act = () => new ConfigurationBuilder().AddCommandLineOptions(commandLineOptions).Build().Bind(cmdLineOptions);
             act.Should().Throw<TargetInvocationException>().WithInnerException<ArgumentOutOfRangeException>();
         }
+
+        [Fact]
+        public void CanParseMultipleUsers()
+        {
+            var commandLineOptions = CommandLineParser.TryParseCommandLine(new[] { $"--user:u1=p1", "--user:u2=p2" }, false);
+            var cmdLineOptions = new CommandLineOptions();
+            new ConfigurationBuilder().AddCommandLineOptions(commandLineOptions).Build().Bind(cmdLineOptions);
+            cmdLineOptions.ServerOptions.Users.Length.Should().Be(2);
+            cmdLineOptions.ServerOptions.Users[0].Username.Should().Be("u1");
+            cmdLineOptions.ServerOptions.Users[0].Password.Should().Be("p1");
+            cmdLineOptions.ServerOptions.Users[1].Username.Should().Be("u2");
+            cmdLineOptions.ServerOptions.Users[1].Password.Should().Be("p2");
+        }
     }
 }

Rnwood.Smtp4dev/CommandLineParser.cs

@@ -48,7 +48,10 @@ public static MapOptions<CommandLineOptions> TryParseCommandLine(IEnumerable<str
                 { "applicationName=","",  data => map.Add(data, x => x.ApplicationName), true},
                 { "authenticationrequired", "Requires that SMTP and IMAP clients authenticate", data => map.Add((data != null).ToString(), x => x.ServerOptions.AuthenticationRequired) },
                 { "secureconnectionrequired", "Requires that SMTP clients use SSL/TLS", data => map.Add((data != null).ToString(), x => x.ServerOptions.SecureConnectionRequired) },
-				{ "webauthenticationrequired", "Require authentication for web interface", data => map.Add((data != null).ToString(), x => x.ServerOptions.WebAuthenticationRequired) }
+				{ "webauthenticationrequired", "Require authentication for web interface", data => map.Add((data != null).ToString(), x => x.ServerOptions.WebAuthenticationRequired) },
+                { "user=", "Adds a user and password combination for web, SMTP and IMAP. Use format username=password. This option can be repeated to add multiple users.", data =>
+					   map.Add(data, x => x.ServerOptions.Users)
+				}
 
 			};
 

Rnwood.Smtp4dev/Properties/launchSettings.json

@@ -2,7 +2,7 @@
   "profiles": {
     "Rnwood.Smtp4dev": {
       "commandName": "Project",
-      "commandLineArgs": "--hostname=BLAH --smtpport=2525",
+      "commandLineArgs": "--hostname=BLAH --smtpport=2525 --user:u1=p1 --user:u2=p2",
       "launchBrowser": true,
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"

Rnwood.Smtp4dev/Server/Settings/User.cs

@@ -1,8 +1,31 @@
-namespace Rnwood.Smtp4dev.Server.Settings
+using System;
+using System.ComponentModel;
+using System.Globalization;
+using System.Linq;
+
+namespace Rnwood.Smtp4dev.Server.Settings
 {
+    [TypeConverter(typeof(UserFromStringConverter))]
     public class User
     {
         public string Username { get; set; }
         public string Password { get; set; }
     }
+
+    public class UserFromStringConverter : TypeConverter
+    {
+        public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
+        {
+            return sourceType == typeof(string);
+        }
+
+        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
+        {
+            string stringValue =  value as string;
+
+            string[] values = stringValue.Split('=', 2);
+
+            return new User { Username = values[0], Password = values.Last() ?? "" };
+        }
+    }
 }