Separation of core library from the UWP app.
This commit is contained in:
Burak Kaan Köse
191
Wino.Services/Extensions/MailkitClientExtensions.cs
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191
Wino.Services/Extensions/MailkitClientExtensions.cs
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using System;
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using System.Linq;
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using MailKit;
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using MimeKit;
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using Wino.Core.Domain;
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using Wino.Core.Domain.Entities.Mail;
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using Wino.Core.Domain.Enums;
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using Wino.Services.Extensions;
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namespace Wino.Services.Extensions
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{
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public static class MailkitClientExtensions
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{
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public static char MailCopyUidSeparator = '_';
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public static uint ResolveUid(string mailCopyId)
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{
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var splitted = mailCopyId.Split(MailCopyUidSeparator);
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if (splitted.Length > 1 && uint.TryParse(splitted[1], out uint parsedUint)) return parsedUint;
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throw new ArgumentOutOfRangeException(nameof(mailCopyId), mailCopyId, "Invalid mailCopyId format.");
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}
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public static string CreateUid(Guid folderId, uint messageUid)
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=> $"{folderId}{MailCopyUidSeparator}{messageUid}";
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public static MailImportance GetImportance(this MimeMessage messageSummary)
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{
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if (messageSummary.Headers != null && messageSummary.Headers.Contains(HeaderId.Importance))
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{
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var rawImportance = messageSummary.Headers[HeaderId.Importance];
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return rawImportance switch
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{
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"Low" => MailImportance.Low,
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"High" => MailImportance.High,
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_ => MailImportance.Normal,
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};
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}
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return MailImportance.Normal;
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}
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public static bool GetIsRead(this MessageFlags? flags)
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=> flags.GetValueOrDefault().HasFlag(MessageFlags.Seen);
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public static bool GetIsFlagged(this MessageFlags? flags)
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=> flags.GetValueOrDefault().HasFlag(MessageFlags.Flagged);
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public static string GetThreadId(this IMessageSummary messageSummary)
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{
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// First check whether we have the default values.
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if (!string.IsNullOrEmpty(messageSummary.ThreadId))
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return messageSummary.ThreadId;
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if (messageSummary.GMailThreadId != null)
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return messageSummary.GMailThreadId.ToString();
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return default;
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}
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public static string GetMessageId(this MimeMessage mimeMessage)
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=> mimeMessage.MessageId;
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public static string GetReferences(this MessageIdList messageIdList)
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=> string.Join(";", messageIdList);
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public static string GetInReplyTo(this MimeMessage mimeMessage)
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{
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if (mimeMessage.Headers.Contains(HeaderId.InReplyTo))
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{
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// Normalize if <> brackets are there.
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var inReplyTo = mimeMessage.Headers[HeaderId.InReplyTo];
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if (inReplyTo.StartsWith("<") && inReplyTo.EndsWith(">"))
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return inReplyTo.Substring(1, inReplyTo.Length - 2);
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return inReplyTo;
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}
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return string.Empty;
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}
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private static string GetPreviewText(this MimeMessage message)
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{
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if (string.IsNullOrEmpty(message.HtmlBody))
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return message.TextBody;
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else
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return HtmlAgilityPackExtensions.GetPreviewText(message.HtmlBody);
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}
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public static MailCopy GetMailDetails(this IMessageSummary messageSummary, MailItemFolder folder, MimeMessage mime)
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{
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// MessageSummary will only have UniqueId, Flags, ThreadId.
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// Other properties are extracted directly from the MimeMessage.
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// IMAP doesn't have unique id for mails.
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// All mails are mapped to specific folders with incremental Id.
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// Uid 1 may belong to different messages in different folders, but can never be
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// same for different messages in same folders.
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// Here we create arbitrary Id that maps the Id of the message with Folder UniqueId.
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// When folder becomes invalid, we'll clear out these MailCopies as well.
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var messageUid = CreateUid(folder.Id, messageSummary.UniqueId.Id);
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var previewText = mime.GetPreviewText();
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var copy = new MailCopy()
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{
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Id = messageUid,
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CreationDate = mime.Date.UtcDateTime,
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ThreadId = messageSummary.GetThreadId(),
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MessageId = mime.GetMessageId(),
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Subject = mime.Subject,
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IsRead = messageSummary.Flags.GetIsRead(),
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IsFlagged = messageSummary.Flags.GetIsFlagged(),
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PreviewText = previewText,
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FromAddress = GetActualSenderAddress(mime),
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FromName = GetActualSenderName(mime),
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IsFocused = false,
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Importance = mime.GetImportance(),
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References = mime.References?.GetReferences(),
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InReplyTo = mime.GetInReplyTo(),
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HasAttachments = mime.Attachments.Any(),
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FileId = Guid.NewGuid()
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};
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return copy;
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}
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// TODO: Name and Address parsing should be handled better.
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// At some point Wino needs better contact management.
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public static string GetActualSenderName(MimeMessage message)
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{
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if (message == null)
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return string.Empty;
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return message.From.Mailboxes.FirstOrDefault()?.Name ?? message.Sender?.Name ?? Translator.UnknownSender;
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// From MimeKit
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// The "From" header specifies the author(s) of the message.
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// If more than one MimeKit.MailboxAddress is added to the list of "From" addresses,
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// the MimeKit.MimeMessage.Sender should be set to the single MimeKit.MailboxAddress
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// of the personal actually sending the message.
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// Also handle: https://stackoverflow.com/questions/46474030/mailkit-from-address
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//if (message.Sender != null)
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// return string.IsNullOrEmpty(message.Sender.Name) ? message.Sender.Address : message.Sender.Name;
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//else if (message.From?.Mailboxes != null)
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//{
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// var firstAvailableName = message.From.Mailboxes.FirstOrDefault(a => !string.IsNullOrEmpty(a.Name))?.Name;
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// if (string.IsNullOrEmpty(firstAvailableName))
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// {
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// var firstAvailableAddress = message.From.Mailboxes.FirstOrDefault(a => !string.IsNullOrEmpty(a.Address))?.Address;
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// if (!string.IsNullOrEmpty(firstAvailableAddress))
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// {
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// return firstAvailableAddress;
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// }
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// }
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// return firstAvailableName;
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//}
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//// No sender, no from, I don't know what to do.
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//return Translator.UnknownSender;
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}
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// TODO: This is wrong.
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public static string GetActualSenderAddress(MimeMessage message)
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{
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return message.From.Mailboxes.FirstOrDefault()?.Address ?? message.Sender?.Address ?? Translator.UnknownSender;
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//if (mime == null)
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// return string.Empty;
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//bool hasSingleFromMailbox = mime.From.Mailboxes.Count() == 1;
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//if (hasSingleFromMailbox)
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// return mime.From.Mailboxes.First().GetAddress(idnEncode: true);
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//else if (mime.Sender != null)
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// return mime.Sender.GetAddress(idnEncode: true);
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//else
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// return Translator.UnknownSender;
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}
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}
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}
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