Add Hangfire

Adjust namespace
2016-11-17 13:36:13 -05:00
parent 88a21593da
commit eeacfebec9
34 changed files with 1007 additions and 38 deletions
@@ -0,0 +1,177 @@
+using System;
+using System.Configuration;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Net.Mail;
+using log4net;
+using LeafWeb.Core.DAL;
+using LeafWeb.Core.Entities;
+using LeafWeb.Core.Utility;
+
+namespace LeafWeb.WebCms.Services
+{
+	public class EmailNotificationService : IDisposable
+	{
+		private static readonly ILog Logger = LogManager.GetLogger(typeof(EmailNotificationService));
+
+		private readonly string _emailFromAddress;
+
+		private const string EmailSuccessSubject = "LeafWeb Results";
+		private const string EmailErrorSubject = "LeafWeb processing error";
+		private const string EmailSystemErrorSubject = "LeafWeb system error";
+
+		/// <summary>
+		/// Comma separated values
+		/// </summary>
+		private readonly string _adminEmailAddresses;
+
+		private readonly SmtpClient _smtpClient;
+
+		private readonly DataService _dataService;
+
+		private readonly DownloadUrlService _downloadUrlService;
+
+		public EmailNotificationService(DataService dataService)
+		{
+			_dataService = dataService;
+
+			_downloadUrlService = new DownloadUrlService();
+
+			_smtpClient = new SmtpClient(
+				ConfigurationManager.AppSettings["SmtpHost"],
+				Convert.ToInt32(ConfigurationManager.AppSettings["SmtpPort"]));
+
+			if (!string.IsNullOrEmpty(ConfigurationManager.AppSettings["SmtpUserName"]))
+				_smtpClient.Credentials = new NetworkCredential(
+					ConfigurationManager.AppSettings["SmtpUserName"],
+					ConfigurationManager.AppSettings["SmtpPassword"]
+					);
+
+			_emailFromAddress = ConfigurationManager.AppSettings["EmailFromAddress"];
+			_adminEmailAddresses = ConfigurationManager.AppSettings["AdminEmailAddresses"];
+		}
+
+		public EmailNotificationService() : this(new DataService())
+		{ }
+
+		public void SendLeafWebComplete(int leafInputId)
+		{
+			var leafInput = _dataService.GetLeafInput(leafInputId);
+
+			var outputErrorMessage = leafInput.OutputErrorMessage;
+			if (outputErrorMessage != null)
+				SendLeafWebError(leafInput, outputErrorMessage.FileContents.Contents.GetString());
+			else
+				SendLeafWebSuccess(leafInput);
+		}
+
+		public void SendAdministratorMessage(string subject, string body)
+		{
+			var message = new MailMessage(_emailFromAddress, _adminEmailAddresses, subject, body);
+			SendMessage(message);
+		}
+
+		private void SendLeafWebSuccess(LeafInput leafInput)
+		{
+			var body = $"Your leaf analysis job, {leafInput.Identifier}, has completed. ";
+
+			body += FormatWarningMessage(leafInput);
+
+			if (true)
+			{
+				var downloadUrl = _downloadUrlService.GetDownloadUrl(leafInput);
+
+				body += 
+					"Download results with the following link:" 
+					+ Environment.NewLine + Environment.NewLine 
+					+ downloadUrl;
+
+				var message = new MailMessage(_emailFromAddress, leafInput.Email, EmailSuccessSubject, body);
+				SendMessage(message);
+			}
+			else
+			{
+				body += "Please see the attached results.";
+
+				var message = new MailMessage(_emailFromAddress, leafInput.Email, EmailSuccessSubject, body);
+
+				var fileStreams =
+					(from outputFile in
+						leafInput.OutputFiles
+						select Tuple.Create(outputFile, new MemoryStream(outputFile.FileContents.Contents))).ToList();
+				try
+				{
+					foreach (var fileStream in fileStreams)
+					{
+						var attachment = new Attachment(fileStream.Item2, fileStream.Item1.Filename);
+						message.Attachments.Add(attachment);
+					}
+
+					SendMessage(message);
+				}
+				finally
+				{
+					// can't dispose those memory streams until the message is sent
+					foreach (var stream in fileStreams.Select(f => f.Item2))
+					{
+						stream.Dispose();
+					}
+				}
+			}
+		}
+
+		private void SendLeafWebError(LeafInput leafInput, string errorMessage)
+		{
+			var body = $"Your leaf analysis job, {leafInput.Identifier}, encountered the following errors." + Environment.NewLine
+			           + Environment.NewLine + Environment.NewLine
+			           + errorMessage
+					   + Environment.NewLine + Environment.NewLine
+					   + "You will need to correct your input and resubmit.";
+
+			body += FormatWarningMessage(leafInput);
+
+			var message = new MailMessage(_emailFromAddress, leafInput.Email, EmailErrorSubject, body);
+			SendMessage(message);
+		}
+
+		public void SendLeafWebSystemException(string leafInputIdentifier, string leafInputEmail)
+		{
+			var body = $"A system error occured while processing your leaf analysis job, {leafInputIdentifier}." + Environment.NewLine
+					   + "System administrators have been notified. You will be notified again when the system error "
+					   + "has been resolved and your data has been processed.";
+
+			var message = new MailMessage(_emailFromAddress, leafInputEmail, EmailSystemErrorSubject, body);
+			SendMessage(message);
+		}
+
+		private string FormatWarningMessage(LeafInput leafInput)
+		{
+			if (leafInput.OutputWarningMessage != null)
+				return Environment.NewLine + Environment.NewLine
+					+ "The following warning message was generated."
+					+ Environment.NewLine + Environment.NewLine
+					+ leafInput.OutputWarningMessage.FileContents.Contents.GetString()
+					+ Environment.NewLine;
+			return string.Empty;
+		}
+
+		private void SendMessage(MailMessage mailMessage)
+		{
+			try
+			{
+				Logger.Debug("Email sending to " + mailMessage.To + ", subject: " + mailMessage.Subject);
+				_smtpClient.Send(mailMessage);
+			}
+			catch (SmtpException ex)
+			{
+				Logger.Error($"Failed to send mail: {ex.Message}", ex);
+			}
+		}
+
+		public void Dispose()
+		{
+			_dataService.Dispose();
+		}
+	}
+}