PEPMessage.cs
author Dean Looyengoed
Mon, 08 Feb 2016 14:56:24 +0100
changeset 388 3daf52a7068f
parent 387 67bbdde87684
child 389 e11ca0c9f1d5
permissions -rw-r--r--
Reorganize ToCOMType method to read easier.
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´╗┐using Microsoft.Win32;
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using pEpCOMServerAdapterLib;
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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 System.Runtime.InteropServices;
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using Outlook = Microsoft.Office.Interop.Outlook;
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namespace pEp
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{
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    /// <summary>
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    /// Creates a completely in-memory message based on the pEp engine text_message.
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    /// </summary>
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    public class PEPMessage
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    {
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        private List<PEPAttachment> _Attachments;
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        private List<PEPIdentity>   _BCC;
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        private List<PEPIdentity>   _CC;
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        private _pEp_msg_direction  _Direction;
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        private PEPIdentity         _From;
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        private string              _ID;
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        private List<string>        _Keywords;
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        private string              _LongMsg;
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        private string              _LongMsgFormatted;
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        private List<opt_field>     _OptionalFields;
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        private string              _ShortMsg;
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        private List<PEPIdentity>   _To;
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        /**************************************************************
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         * 
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         * Constructors
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         * 
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         *************************************************************/
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        /// <summary>
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        /// Default constructor.
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        /// </summary>
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        public PEPMessage()
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        {
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            this._Attachments = new List<PEPAttachment>();
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            this._BCC = new List<PEPIdentity>();
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            this._CC = new List<PEPIdentity>();
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            this._Direction = _pEp_msg_direction.pEp_dir_incoming;
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            this._From = null;
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            this._ID = null;
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            this._Keywords = new List<string>();
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            this._LongMsg = null;
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            this._LongMsgFormatted = null;
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            this._OptionalFields = new List<opt_field>();
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            this._ShortMsg = null;
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            this._To = new List<PEPIdentity>();
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        }
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        /// <summary>
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        /// Constructs a new message from the given pEp engine text_message.
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        /// </summary>
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        /// <param name="msg">The text_message to construct from.</param>
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        public PEPMessage(text_message msg)
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        {
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            // Attachments
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            this._Attachments = new List<PEPAttachment>();
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            if (msg.attachments != null)
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            {
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                for (int i = 0; i < msg.attachments.Length; i++)
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                {
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                    this._Attachments.Add(new PEPAttachment((blob)msg.attachments.GetValue(i)));
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                }
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            }
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            // BCC
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            this._BCC = new List<PEPIdentity>();
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            if (msg.bcc != null)
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            {
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                for (int i = 0; i < msg.bcc.Length; i++)
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                {
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                    this._BCC.Add(new PEPIdentity((pEp_identity_s)msg.bcc.GetValue(i)));
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                }
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            }
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            // CC
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            this._CC = new List<PEPIdentity>();
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            if (msg.cc != null)
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            {
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                for (int i = 0; i < msg.cc.Length; i++)
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                {
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                    this._CC.Add(new PEPIdentity((pEp_identity_s)msg.cc.GetValue(i)));
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                }
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            }
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            this._Direction = msg.dir;
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            this._From = new PEPIdentity(msg.from);
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            this._ID = msg.id;
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            // Keywords
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            this._Keywords = new List<string>();
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            if (msg.keywords != null)
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            {
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                for (int i = 0; i < msg.keywords.Length; i++)
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                {
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                    this._Keywords.Add((string)msg.keywords.GetValue(i));
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                }
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            }
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            this._LongMsg = msg.longmsg;
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            this._LongMsgFormatted = msg.longmsg_formatted;
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            // Optional fields
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            this._OptionalFields = new List<opt_field>();
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            if (msg.opt_fields != null)
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            {
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                for (int i = 0; i < msg.opt_fields.Length; i++)
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                {
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                    this._OptionalFields.Add((opt_field)msg.opt_fields.GetValue(i));
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                }
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            }
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            this._ShortMsg = msg.shortmsg;
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            // To
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            this._To = new List<PEPIdentity>();
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            if (msg.to != null)
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            {
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                for (int i = 0; i < msg.to.Length; i++)
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                {
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                    this._To.Add(new PEPIdentity((pEp_identity_s)msg.to.GetValue(i)));
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                }
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            }
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        }
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        /// <summary>
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        /// Contructs a new message from the given outlook mail item.
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        /// </summary>
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        /// <param name="omi">The outlook mail item to create the message from.</param>
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        /// <param name="createWithoutContent">Whether the outlook mail item should be created with
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        /// any content such as text body and attachments.</param>
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        public PEPMessage(Outlook.MailItem omi,
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                          bool createWithoutContent = false)
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        {
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            string delim;
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            string bodyLong = null;
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            string bodyLongFormatted = null;
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            PEPIdentity from = null;
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            List<string> keywordList = new List<string>();
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            List<PEPIdentity> toList = new List<PEPIdentity>();
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            List<PEPIdentity> ccList = new List<PEPIdentity>();
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            List<PEPIdentity> bccList = new List<PEPIdentity>();
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            List<PEPAttachment> attachmentList = new List<PEPAttachment>();
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            Outlook.Account acct = null;
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            ///////////////////////////////////////////////////////////
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            // Calculate From
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            ///////////////////////////////////////////////////////////
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            if (CryptableMailItem.GetIsIncoming(omi))
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            {
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                if (omi.Sender != null)
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                {
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                    from = new PEPIdentity();
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                    from.Address = omi.Sender.Address;
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                    from.UserID = omi.Sender.ID;
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                    from.Username = omi.Sender.Name;
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                }
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                else
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                {
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                    from = new PEPIdentity();
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                    from.Address = omi.SenderEmailAddress;
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                    from.Username = omi.SenderName;
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                }
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            }
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            else // Outgoing
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            {
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                if (omi.SendUsingAccount != null)
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                {
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                    from = new PEPIdentity();
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                    from.Address = omi.SendUsingAccount.SmtpAddress;
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                    from.UserID = omi.SendUsingAccount.CurrentUser.EntryID;
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                    from.Username = omi.SendUsingAccount.CurrentUser.Name;
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                }
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                else
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                {
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                    // Attempt to get the first account (note: index starts at 1)
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                    if (Globals.ThisAddIn.Application.Session.Accounts.Count >= 1)
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                    {
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                        acct = Globals.ThisAddIn.Application.Session.Accounts[1];
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                        from = new PEPIdentity();
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                        from.Address = acct.SmtpAddress;
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                        from.UserID = acct.CurrentUser.EntryID;
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                        from.Username = acct.CurrentUser.Name;
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                    }
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                    else
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                    {
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                        throw (new Exception("No sending account for mail item."));
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                    }
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                }
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            }
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            ///////////////////////////////////////////////////////////
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            // Calculate recipients
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            ///////////////////////////////////////////////////////////
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            foreach (Outlook.Recipient r in omi.Recipients)
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            {
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                switch ((Outlook.OlMailRecipientType)r.Type)
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                {
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                    case Outlook.OlMailRecipientType.olTo:
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                        toList.Add(PEPIdentity.ToIdentity(r));
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                        break;
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                    case Outlook.OlMailRecipientType.olCC:
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                        ccList.Add(PEPIdentity.ToIdentity(r));
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                        break;
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                    case Outlook.OlMailRecipientType.olBCC:
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                        bccList.Add(PEPIdentity.ToIdentity(r));
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                        break;
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                }
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            }
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            ///////////////////////////////////////////////////////////
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            // Calculate text body and attachments
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            ///////////////////////////////////////////////////////////
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            if (createWithoutContent == false)
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            {
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                // Body
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                if (omi.Body != null)
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                {
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                    bodyLong = omi.Body.Replace("\r\n", "\n");
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                    // Force rich text into HTML
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                    if (omi.BodyFormat == Outlook.OlBodyFormat.olFormatRichText)
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                    {
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                        omi.BodyFormat = Outlook.OlBodyFormat.olFormatHTML;
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                    }
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                    if (omi.BodyFormat == Outlook.OlBodyFormat.olFormatHTML)
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                    {
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                        bodyLongFormatted = omi.HTMLBody;
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                    }
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                }
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                // Attachments
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                foreach (Outlook.Attachment a in omi.Attachments)
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                {
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                    try
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                    {
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                        attachmentList.Add(new PEPAttachment(a));
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                    }
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                    catch { }
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                }
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                // Keywords
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                if (omi.Categories != null)
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                {
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                    using (RegistryKey key1 = Registry.CurrentUser.OpenSubKey("Control Panel\\International"))
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                    {
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                        delim = key1.GetValue("sList").ToString();
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                        keywordList = new List<string>(omi.Categories.Split(delim.ToCharArray()));
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                    }
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                }
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            }
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            ///////////////////////////////////////////////////////////
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            // Set properties
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            ///////////////////////////////////////////////////////////
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            this._Attachments = attachmentList;
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            this._BCC = bccList;
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            this._CC = ccList;
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            this._Direction = CryptableMailItem.GetIsIncoming(omi) ? _pEp_msg_direction.pEp_dir_incoming : _pEp_msg_direction.pEp_dir_outgoing;
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            this._From = from;
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            this._ID = CryptableMailItem.GetMessageID(omi);
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            this._Keywords = keywordList;
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            this._LongMsg = bodyLong;
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            this._LongMsgFormatted = bodyLongFormatted;
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            this._OptionalFields = new List<opt_field>();
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            this._ShortMsg = omi.Subject;
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            this._To = toList;
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            ///////////////////////////////////////////////////////////
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            // Free resources
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            ///////////////////////////////////////////////////////////
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            if (acct != null)
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            {
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                Marshal.ReleaseComObject(acct);
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                acct = null;
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            }
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            return;
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        }
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        /**************************************************************
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         * 
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         * Property Accessors
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         * 
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         *************************************************************/
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        /// <summary>
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        /// Gets the list of attachements for this message.
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        /// </summary>
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        public List<PEPAttachment> Attachments
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        {
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            get { return (this._Attachments); }
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        }
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        /// <summary>
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        /// Gets the list of identities to be blind carbon copied on the message.
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        /// </summary>
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        public List<PEPIdentity> BCC
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        {
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            get { return (this._BCC); }
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        }
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        /// <summary>
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        /// Gets the list of identities to be carbon copied on the message.
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        /// </summary>
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        public List<PEPIdentity> CC
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        {
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            get { return (this._CC); }
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        }
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        /// <summary>
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        /// Gets or sets the direction (incoming or outgoing) of the message.
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        /// </summary>
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        public _pEp_msg_direction Direction
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        {
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            get { return (this._Direction); }
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            set { this._Direction = value; }
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        }
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        /// <summary>
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        /// Gets or sets the from identity of the message.
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        /// Warning: this value can be null.
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        /// </summary>
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        public PEPIdentity From
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        {
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            get { return (this._From); }
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            set { this._From = value; }
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        }
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        /// <summary>
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        /// Gets or sets the ID of the message.
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        /// Warning: this value can be null.
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        /// </summary>
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        public string ID
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        {
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            get { return (this._ID); }
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            set { this._ID = value; }
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        }
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        /// <summary>
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        /// Gets the list of keywords associated with the message.
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        /// </summary>
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        public List<string> Keywords
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        {
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            get { return (this._Keywords); }
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        }
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        /// <summary>
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        /// Gets or sets the long-form (body) of the message.
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        /// This should be plain text.
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        /// Warning: this value can be null.
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        /// </summary>
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        public string LongMsg
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        {
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            get { return (this._LongMsg); }
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            set { this._LongMsg = value; }
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        }
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        /// <summary>
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        /// Gets or sets the formatted long-form (body) of the message.
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        /// This should be HTML.
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        /// Warning: this value can be null.
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        /// </summary>
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        public string LongMsgFormatted
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        {
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            get { return (this._LongMsgFormatted); }
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            set { this._LongMsgFormatted = value; }
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        }
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        /// <summary>
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        /// Gets the list of optional fields associated with the message.
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        /// </summary>
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        public List<opt_field> OptionalFields
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        {
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            get { return (this._OptionalFields); }
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        }
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        /// <summary>
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        /// Gets or sets the short-form (subject) of the message.
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        /// Warning: this value can be null.
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        /// </summary>
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        public string ShortMsg
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        {
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            get { return (this._ShortMsg); }
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            set { this._ShortMsg = value; }
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        }
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        /// <summary>
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        /// Gets the list of identities to receive the message.
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        /// </summary>
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        public List<PEPIdentity> To
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        {
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            get { return (this._To); }
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        }
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        /**************************************************************
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         * 
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         * Methods
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         * 
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         *************************************************************/
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        /// <summary>
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        /// Returns this pEp message as a new pEp engine text_message.
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        /// </summary>
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        /// <returns>A pEp engine identity.</returns>
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        public text_message ToCOMType()
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        {
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            List<blob> attachments = new List<blob>();
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            List<pEp_identity_s> bcc = new List<pEp_identity_s>();
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            List<pEp_identity_s> cc = new List<pEp_identity_s>();
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            List<pEp_identity_s> to = new List<pEp_identity_s>();
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            text_message result = new text_message();
Dean@384
   424
Dean@388
   425
            // Convert attachments
Dean@384
   426
            for (int i = 0; i < this._Attachments.Count; i++)
Dean@384
   427
            {
Dean@384
   428
                attachments.Add(this._Attachments[i].ToCOMType());
Dean@384
   429
            }
Dean@388
   430
            
Dean@388
   431
            // Convert BCC
Dean@384
   432
            for (int i = 0; i < this._BCC.Count; i++)
Dean@384
   433
            {
Dean@384
   434
                bcc.Add(this._BCC[i].ToCOMType());
Dean@384
   435
            }
Dean@388
   436
            
Dean@388
   437
            // Convert CC
Dean@384
   438
            for (int i = 0; i < this._CC.Count; i++)
Dean@384
   439
            {
Dean@384
   440
                cc.Add(this._CC[i].ToCOMType());
Dean@384
   441
            }
Dean@388
   442
            
Dean@388
   443
            // Convert To
Dean@388
   444
            for (int i = 0; i < this._To.Count; i++)
Dean@388
   445
            {
Dean@388
   446
                to.Add(this._To[i].ToCOMType());
Dean@388
   447
            }
Dean@388
   448
Dean@388
   449
            // Set properties
Dean@388
   450
            result.attachments = attachments.ToArray();
Dean@388
   451
            result.bcc = bcc.ToArray();
Dean@384
   452
            result.cc = cc.ToArray();
Dean@384
   453
            result.dir = this._Direction;
Dean@384
   454
            result.from = (this._From == null ? new pEp_identity_s() : this._From.ToCOMType());
Dean@384
   455
            result.id = this._ID;
Dean@384
   456
            result.keywords = this._Keywords.ToArray();
Dean@384
   457
            result.longmsg = this._LongMsg;
Dean@384
   458
            result.longmsg_formatted = this._LongMsgFormatted;
Dean@384
   459
            result.opt_fields = this._OptionalFields.ToArray();
Dean@384
   460
            result.shortmsg = this._ShortMsg;
Dean@384
   461
            result.to = to.ToArray();
Dean@384
   462
Dean@384
   463
            return (result);
Dean@384
   464
        }
Dean@384
   465
Dean@384
   466
        /// <summary>
Dean@384
   467
        /// Applies this pEp message's data to the given Outlook item.
Dean@384
   468
        /// </summary>
Dean@384
   469
        /// <param name="omi">The Outlook mail item to apply this pEp message's data to.</param>
Dean@384
   470
        public void ApplyTo(Outlook.MailItem omi)
Dean@384
   471
        {
Dean@384
   472
            string tempDir;
Dean@384
   473
            string tempFile;
Dean@384
   474
            Outlook.Attachment attachment;
Dean@384
   475
Dean@384
   476
            // Set the subject
Dean@384
   477
            omi.Subject = this._ShortMsg;
Dean@384
   478
Dean@384
   479
            // Set the body
Dean@384
   480
            if (string.IsNullOrWhiteSpace(this._LongMsgFormatted))
Dean@384
   481
            {
Dean@384
   482
                omi.BodyFormat = Outlook.OlBodyFormat.olFormatPlain;
Dean@384
   483
                omi.Body = this._LongMsg;
Dean@384
   484
            }
Dean@384
   485
            else
Dean@384
   486
            {
Dean@384
   487
                omi.BodyFormat = Outlook.OlBodyFormat.olFormatHTML;
Dean@384
   488
                omi.HTMLBody = this._LongMsgFormatted;
Dean@384
   489
            }
Dean@384
   490
Dean@384
   491
            // Remove any previous attachments
Dean@384
   492
            while (omi.Attachments.Count > 0)
Dean@384
   493
            {
Dean@384
   494
                omi.Attachments.Remove(1);
Dean@384
   495
            }
Dean@384
   496
Dean@384
   497
            // Create temp directory for attachments
Dean@384
   498
            tempDir = Path.GetTempFileName() + ".dir";
Dean@384
   499
            Directory.CreateDirectory(tempDir);
Dean@384
   500
Dean@384
   501
            // Add new attachments
Dean@384
   502
            for (int i = 0; i < this._Attachments.Count; i++)
Dean@384
   503
            {
Dean@384
   504
                // Write current attachment to disk
Dean@384
   505
                tempFile = tempDir + "\\";
Dean@384
   506
                if (string.IsNullOrWhiteSpace(this._Attachments[i].FileName))
Dean@384
   507
                {
Dean@384
   508
                    tempFile += "attachment" + i.ToString();
Dean@384
   509
                }
Dean@384
   510
                else
Dean@384
   511
                {
Dean@384
   512
                    tempFile += this._Attachments[i].FileName;
Dean@384
   513
                }
Dean@384
   514
                File.WriteAllBytes(tempFile, this._Attachments[i].Data);
Dean@384
   515
Dean@384
   516
                // Create a new attachment from the file on disk
Dean@384
   517
                attachment = omi.Attachments.Add(tempFile);
Dean@384
   518
Dean@384
   519
                if (string.IsNullOrWhiteSpace(this._Attachments[i].MIMEType))
Dean@384
   520
                {
Dean@384
   521
                    // Undefined
Dean@384
   522
                    PEPAttachment.SetMIMEType(attachment, "application/octet-stream");
Dean@384
   523
                }
Dean@384
   524
                else
Dean@384
   525
                {
Dean@384
   526
                    PEPAttachment.SetMIMEType(attachment, this._Attachments[i].MIMEType);
Dean@384
   527
                }
Dean@384
   528
Dean@384
   529
                // Release attachment
Dean@384
   530
                if (attachment != null)
Dean@384
   531
                {
Dean@384
   532
                    Marshal.ReleaseComObject(attachment);
Dean@384
   533
                    attachment = null;
Dean@384
   534
                }
Dean@384
   535
            }
Dean@384
   536
Dean@384
   537
            // Delete temp directory for attachments
Dean@384
   538
            Directory.Delete(tempDir, true);
Dean@384
   539
Dean@384
   540
            // Optional fields
Dean@384
   541
            for (int i = 0; i < this._OptionalFields.Count; i++)
Dean@384
   542
            {
Dean@384
   543
                omi.PropertyAccessor.SetProperty(ThisAddIn.PR_OPT_FIELD + this._OptionalFields[i].name,
Dean@384
   544
                                                 this._OptionalFields[i].value);
Dean@384
   545
            }
Dean@384
   546
Dean@384
   547
            return;
Dean@384
   548
        }
Dean@384
   549
Dean@384
   550
    }
Dean@384
   551
}