120 lines
3.5 KiB
C#
120 lines
3.5 KiB
C#
using System;
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using System.Configuration;
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using System.IO;
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using System.Linq;
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using System.Net;
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using System.Net.Mail;
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using LeafWeb.Core.DAL;
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using LeafWeb.Core.Entities;
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using LeafWeb.Core.Utility;
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using NLog;
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namespace LeafWeb.Web.Services
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{
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public class EmailNotificationService : IDisposable
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{
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private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
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private readonly string _emaialFromAddress;
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private readonly SmtpClient _smtpClient;
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private readonly DataService _dataService;
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public EmailNotificationService(DataService dataService)
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{
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_dataService = dataService;
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_smtpClient = new SmtpClient(
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ConfigurationManager.AppSettings["SmtpHost"],
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Convert.ToInt32(ConfigurationManager.AppSettings["SmtpPort"]));
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if (!string.IsNullOrEmpty(ConfigurationManager.AppSettings["SmtpUserName"]))
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_smtpClient.Credentials = new NetworkCredential(
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ConfigurationManager.AppSettings["SmtpUserName"],
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ConfigurationManager.AppSettings["SmtpPassword"]
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);
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_emaialFromAddress = ConfigurationManager.AppSettings["EmailFromAddress"];
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}
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public EmailNotificationService() : this(new DataService())
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{ }
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public void SendLeafWebComplete(int leafInputId)
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{
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var leafInput = _dataService.GetLeafInput(leafInputId);
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var outputErrorMessage = leafInput.OutputErrorMessage;
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if (outputErrorMessage != null)
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SendLeafWebError(leafInput, outputErrorMessage.Contents.GetString());
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else
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SendLeafWebSuccess(leafInput);
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}
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private void SendLeafWebSuccess(LeafInput leafInput)
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{
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var fileStreams =
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(from outputFile in
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leafInput.OutputFiles
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select Tuple.Create(outputFile, new MemoryStream(outputFile.Contents))).ToList();
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var body = $"Your leaf analysis job, {leafInput.Identifier}, has completed." + Environment.NewLine;
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if (leafInput.OutputWarningMessage != null)
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body += "The following warning message was generated."
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+ Environment.NewLine + Environment.NewLine
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+ leafInput.OutputWarningMessage.Contents.GetString()
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+ Environment.NewLine;
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body += "Please see the attached results.";
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var message = new MailMessage(_emaialFromAddress, leafInput.Email, "LeafWeb results", body);
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try
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{
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foreach (var fileStream in fileStreams)
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{
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var attachment = new Attachment(fileStream.Item2, fileStream.Item1.Filename);
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message.Attachments.Add(attachment);
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}
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SendMessage(message);
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}
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finally
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{
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// can't dispose those memory streams until the message is sent
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foreach (var stream in fileStreams.Select(f => f.Item2))
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{
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stream.Dispose();
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}
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}
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}
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private void SendLeafWebError(LeafInput leafInput, string errorMessage)
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{
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var body = $"Your leaf analysis job, {leafInput.Identifier}, encountered the following errors." + Environment.NewLine
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+ Environment.NewLine + Environment.NewLine
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+ errorMessage
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+ Environment.NewLine + Environment.NewLine
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+ "You will need to correct your input and resubmit.";
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var message = new MailMessage(_emaialFromAddress, leafInput.Email, "LeafWeb processing error", body);
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SendMessage(message);
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}
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private void SendMessage(MailMessage mailMessage)
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{
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try
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{
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Logger.Debug("Email sending to " + mailMessage.To + ", subject: " + mailMessage.Subject);
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_smtpClient.Send(mailMessage);
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}
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catch (SmtpException ex)
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{
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Logger.Error(ex, "Failed to send mail: {0}", ex.Message);
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}
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}
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public void Dispose()
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{
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_dataService.Dispose();
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}
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}
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} |