outlookcaldavsynchronizer/CalDavSynchronizer/Implementation/DistributionLists/Sogo/SogoDistributionListRepository.cs

// This file is Part of CalDavSynchronizer (http://outlookcaldavsynchronizer.sourceforge.net/)
// Copyright (c) 2015 Gerhard Zehetbauer
// Copyright (c) 2015 Alexander Nimmervoll
// 
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
// 
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using CalDavSynchronizer.DataAccess;
using CalDavSynchronizer.Implementation.Contacts;
using CalDavSynchronizer.Utilities;
using GenSync.Logging;
using Thought.vCards;

namespace CalDavSynchronizer.Implementation.DistributionLists.Sogo
{
    class SogoDistributionListRepository : CardDavEntityRepository<DistributionList, int, DistributionListSychronizationContext>
    {
        private const string NonAddressBookMemberValueName = "X-ADDRESSBOOKSERVER-MEMBER";

        public SogoDistributionListRepository(ICardDavDataAccess cardDavDataAccess, IEqualityComparer<string> versionComparer) : base(cardDavDataAccess, versionComparer)
        {
        }

        protected override void SetUid(DistributionList entity, string uid)
        {
            entity.Uid = uid;
        }

        protected override string GetUid(DistributionList entity)
        {
            return entity.Uid;
        }

        protected override string Serialize(DistributionList vcard)
        {
            Dictionary<string, string> escapeTokens = new Dictionary<string, string>
            {   {@"\", @"\\"},
                {"\n", @"\n"},
                {"\r", @"\r"},
                {",", @"\,"},
                {";", @"\;"}
            };

            var builder = new StringBuilder();
            builder.AppendLine("BEGIN:VLIST");
            builder.AppendLine("VERSION:1.0");
            builder.Append("UID:");
            builder.AppendLine(vcard.Uid);
            builder.Append("FN:");
            builder.AppendLine(vCardStandardWriter.EncodeEscaped(vcard.Name, escapeTokens));
            if (!string.IsNullOrEmpty(vcard.Description))
            {
                builder.Append("DESCRIPTION:");
                builder.AppendLine(vCardStandardWriter.EncodeEscaped(vcard.Description.Replace("\r\n", "\n"), escapeTokens));
            }

            if (!string.IsNullOrEmpty(vcard.Nickname))
            {
                builder.Append("NICKNAME:");
                builder.AppendLine(vCardStandardWriter.EncodeEscaped(vcard.Nickname, escapeTokens));
            }

            foreach (var member in vcard.Members)
            {
                builder.Append("CARD;EMAIL=");
                builder.Append(member.EmailAddress);
                builder.Append(";FN=");
                builder.Append(vCardStandardWriter.EncodeEscaped(member.DisplayName, escapeTokens));
                builder.Append(":");
                builder.AppendLine(member.ServerFileName);
            }

            foreach (var member in vcard.NonAddressBookMembers)
            {
                builder.Append(NonAddressBookMemberValueName + ";CN=");
                builder.Append(vCardStandardWriter.EncodeEscaped(member.DisplayName, escapeTokens));
                builder.Append(":mailto:");
                builder.AppendLine(member.EmailAddress);
            }

            builder.AppendLine("END:VLIST");
            return builder.ToString();
        }

        /*
    BEGIN:VLIST
    UID:4250-58658600-5-45D0678.vlf
    VERSION:1.0
    FN:Simpsons
    CARD;EMAIL=homer@simpson.com;FN="Simpson, Homer":5228bf7b-f3a6-4c16-ae3e-90102d86ab43.vcf
    CARD;EMAIL=homer@simpson.com;FN="Simpson, Marge":c520e3ad-3d19-4c2f-b093-3f17736bce8e.vcf
    END:VLIST 
         */

        protected override bool TryDeserialize(string vcardData, out DistributionList vcard, WebResourceName uriOfAddressbookForLogging, int deserializationThreadLocal, ILoadEntityLogger logger)
        {
            var cardReader = new vCardStandardReader();
            vcard = new DistributionList();

            using (var reader = new StringReader(vcardData))
            {
                vCardProperty property;
                do
                {
                    property = cardReader.ReadProperty(reader);
                    if (!string.IsNullOrEmpty(property?.Name))
                    {
                        var propNameToProcess = property.Name.ToUpperInvariant();

                        switch (propNameToProcess)
                        {
                            case "UID":
                                vcard.Uid = property.ToString();
                                break;
                            case "FN":
                                vcard.Name = property.ToString();
                                break;
                            case "DESCRIPTION":
                                vcard.Description = property.ToString();
                                break;
                            case "NICKNAME":
                                vcard.Nickname = property.ToString();
                                break;
                            case "CARD":
                                if (property.Value != null)
                                {
                                    var emailAddress = property.Subproperties.GetValue("EMAIL");
                                    var displayName = property.Subproperties.GetValue("FN");
                                    vcard.Members.Add(new KnownDistributionListMember(emailAddress, displayName, property.Value.ToString()));
                                }

                                break;
                            case NonAddressBookMemberValueName:
                                if (property.Value != null)
                                {
                                    var displayName = property.Subproperties.GetValue("CN");
                                    string emailAddress = null;
                                    var value = property.Value.ToString();
                                    if (!string.IsNullOrEmpty(value))
                                    {
                                        if (value.StartsWith("mailto:", StringComparison.InvariantCultureIgnoreCase))
                                        {
                                            emailAddress = value.Substring(7); //skip mailto:
                                        }
                                    }

                                    vcard.NonAddressBookMembers.Add(new DistributionListMember(emailAddress, displayName));
                                }

                                break;
                        }
                    }
                } while (property != null);
            }

            return true;
        }
    }
}