124 lines
4.5 KiB
C#
124 lines
4.5 KiB
C#
//
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// Class: BSMDPopClient
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// Current CLR: 4.0.30319.34209
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// System: Microsoft Visual Studio 10.0
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// Author: dani
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// Created: 6/15/2015 8:43:41 PM
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//
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// Copyright (c) 2015 Informatikbüro Daniel Schick. All rights reserved.
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using System;
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using System.Collections.Generic;
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using System.IO;
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using OpenPop.Pop3;
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using OpenPop.Mime;
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using log4net;
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namespace bsmd.email
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{
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public class BSMDPopClient : IDisposable
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{
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private Pop3Client pop3Client;
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private bool _connected = false;
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private ILog _log = LogManager.GetLogger(typeof(BSMDPopClient));
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private int currentMail = 1;
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public BSMDPopClient()
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{
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try
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{
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this.pop3Client = new Pop3Client();
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this.pop3Client.Connect(Properties.Settings.Default.POP3Server, 995, true);
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this.pop3Client.Authenticate(Properties.Settings.Default.POP3User, Properties.Settings.Default.POP3Password);
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this._connected = true;
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}
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catch (Exception ex)
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{
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_log.ErrorFormat("Error connecting to POP3 Server: {0}", ex.Message);
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_log.DebugFormat("User:{0} Pw:{1}", Properties.Settings.Default.POP3User, Properties.Settings.Default.POP3Password);
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}
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}
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public bool IsConnected { get { return this._connected; } }
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public bool ReceiveSingleMail(out string attachmentLocalFile, out string messageId, out string sender)
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{
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attachmentLocalFile = null;
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messageId = null;
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sender = null;
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if (!_connected) return false;
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int messageCount = this.pop3Client.GetMessageCount();
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if (messageCount > 0)
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{
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Message mailMessage = this.pop3Client.GetMessage(this.currentMail);
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if ((mailMessage.Headers.Sender != null) && mailMessage.Headers.Sender.HasValidMailAddress)
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sender = mailMessage.Headers.Sender.MailAddress.Address;
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if ((sender == null) && (mailMessage.Headers.From != null) && mailMessage.Headers.From.HasValidMailAddress)
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sender = mailMessage.Headers.From.MailAddress.Address;
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messageId = mailMessage.Headers.MessageId;
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foreach(MessagePart part in mailMessage.FindAllAttachments())
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{
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_log.DebugFormat("found attachment named {0}, ContentType {1}", part.FileName, part.ContentType);
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if (part.FileName.EndsWith(".xls", StringComparison.InvariantCultureIgnoreCase))
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{
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attachmentLocalFile = Path.Combine(Properties.Settings.Default.ArchiveFolder, part.FileName);
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part.Save(new FileInfo(attachmentLocalFile));
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}
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}
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this.currentMail++; // advance message pointer
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return true;
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}
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else
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{
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_log.Debug("no new mail on server");
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return false;
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}
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}
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/// <summary>
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/// deletes message referenced by messageId
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/// </summary>
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/// <returns>true if successful</returns>
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public bool DeleteMessageByMessageId(string messageId)
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{
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if (!_connected) return false;
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// Get the number of messages on the POP3 server
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int messageCount = this.pop3Client.GetMessageCount();
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// Run trough each of these messages and download the headers
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for (int messageItem = messageCount; messageItem > 0; messageItem--)
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{
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// If the Message ID of the current message is the same as the parameter given, delete that message
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if (this.pop3Client.GetMessageHeaders(messageItem).MessageId.Equals(messageId))
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{
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// Delete
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this.pop3Client.DeleteMessage(messageItem);
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return true;
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}
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}
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// We did not find any message with the given messageId, report this back
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return false;
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}
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public void Dispose()
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{
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if (this.pop3Client != null)
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{
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if(this.pop3Client.Connected)
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this.pop3Client.Disconnect();
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this.pop3Client.Dispose();
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}
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}
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}
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}
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