Reorganizes Project (#41)

Projects/Scripts/Misc/Email.cs

@@ -0,0 +1,98 @@
+using System;
+using System.Net;
+using System.Net.Mail;
+using System.Text.RegularExpressions;
+using System.Threading;
+
+namespace Server.Misc
+{
+  public class Email
+  {
+    /* In order to support emailing, fill in EmailServer and FromAddress:
+     * Example:
+     *  public static readonly string EmailServer = "mail.domain.com";
+     *  public static readonly string FromAddress = "runuo@domain.com";
+     * 
+     * If you want to add crash reporting emailing, fill in CrashAddresses:
+     * Example:
+     *  public static readonly string CrashAddresses = "first@email.here,second@email.here,third@email.here";
+     * 
+     * If you want to add speech log page emailing, fill in SpeechLogPageAddresses:
+     * Example:
+     *  public static readonly string SpeechLogPageAddresses = "first@email.here,second@email.here,third@email.here";
+     */
+
+    public static readonly string EmailServer = null;
+    public static readonly int EmailPort = 25;
+
+    public static readonly string FromAddress = null;
+    public static readonly string EmailUsername = null;
+    public static readonly string EmailPassword = null;
+
+
+    public static readonly string CrashAddresses = null;
+    public static readonly string SpeechLogPageAddresses = null;
+
+    private static Regex _pattern = new Regex(@"^[a-z0-9.+_-]+@([a-z0-9-]+\.)+[a-z]+$",
+      RegexOptions.Compiled | RegexOptions.IgnoreCase);
+
+    private static SmtpClient _Client;
+
+    public static bool IsValid(string address)
+    {
+      if (address == null || address.Length > 320)
+        return false;
+
+      return _pattern.IsMatch(address);
+    }
+
+    public static void Configure()
+    {
+      if (EmailServer != null)
+      {
+        _Client = new SmtpClient(EmailServer, EmailPort);
+        if (EmailUsername != null) _Client.Credentials = new NetworkCredential(EmailUsername, EmailPassword);
+      }
+    }
+
+    public static bool Send(MailMessage message)
+    {
+      try
+      {
+        // .NET relies on the MTA to generate Message-ID header. Not all MTAs will add this header.
+
+        DateTime now = DateTime.UtcNow;
+        string messageID = $"<{now.ToString("yyyyMMdd")}.{now.ToString("HHmmssff")}@{EmailServer}>";
+        message.Headers.Add("Message-ID", messageID);
+
+        message.Headers.Add("X-Mailer", "RunUO");
+
+        lock (_Client)
+        {
+          _Client.Send(message);
+        }
+      }
+      catch
+      {
+        return false;
+      }
+
+      return true;
+    }
+
+    public static void AsyncSend(MailMessage message)
+    {
+      ThreadPool.QueueUserWorkItem(SendCallback, message);
+    }
+
+    private static void SendCallback(object state)
+    {
+      MailMessage message = (MailMessage)state;
+
+      if (Send(message))
+        Console.WriteLine("Sent e-mail '{0}' to '{1}'.", message.Subject, message.To);
+      else
+        Console.WriteLine("Failure sending e-mail '{0}' to '{1}'.", message.Subject, message.To);
+    }
+  }
+}