/// <summary>
/// Gets the ready made body part for a mail message either
/// - as TextPart, if there are no inline attachments
/// - as MultipartRelated with a TextPart and one or more MimeParts of type inline attachments
/// </summary>
public override MimeEntity GetBodyPart()
{
ReplaceImgSrcByCid();
var htmlTextPart = new TextPart("html")
{
ContentTransferEncoding = Tools.IsSevenBit(DocHtml)
? ContentEncoding.SevenBit
: TextTransferEncoding != ContentEncoding.SevenBit
? TextTransferEncoding
: ContentEncoding.QuotedPrintable,
};
htmlTextPart.SetText(CharacterEncoding, DocHtml); // MimeKit.ContentType.Charset is set using CharacterEncodig
htmlTextPart.ContentId = MimeUtils.GenerateMessageId();
if (!InlineAtt.Any())
{
return(htmlTextPart);
}
/*
* multipart/related
* text/html
* image/jpeg
* image/png
* image/gif...
*/
var mpr = new MultipartRelated {
htmlTextPart
};
// Produce attachments as part of the multipart/related MIME part,
// as described in RFC2387
// Some older clients may need Inline Attachments instead of LinkedResources:
// RFC2183: 2.1 The Inline Disposition Type
// A bodypart should be marked `inline' if it is intended to be displayed automatically upon display of the message. Inline
// bodyparts should be presented in the order in which they occur, subject to the normal semantics of multipart messages.
foreach (var ia in InlineAtt)
{
try
{
// create an inline image attachment for the file located at path
var attachment = new AttachmentBuilder(new FileAttachment(ia.Filename, ia.DisplayName, ia.MimeType), CharacterEncoding,
TextTransferEncoding, BinaryTransferEncoding).GetAttachment();
attachment.ContentDisposition = new MimeKit.ContentDisposition(MimeKit.ContentDisposition.Inline);
mpr.Add(attachment);
}
catch (FileNotFoundException)
{
BadInlineFiles.Add(ia.Filename);
}
catch (IOException)
{
BadInlineFiles.Add(ia.Filename);
}
}
return(mpr);
}
public async Task GenerateAndSendInviteMailAsync(Invite invite, string rootUrl, string vorstand)
{
MimeMessage message = new MimeMessage();
message.From.Add(new MailboxAddress("Schulungsportal", emailSender.GetAbsendeAdresse())); //Absender
message.To.Add(new MailboxAddress(invite.EMailAdress)); // Empfaenger
message.Subject = "Invite Schulungsportal"; //Betreff
InviteMailViewModel imwm = new InviteMailViewModel {
Vorstand = vorstand,
InviteURL = rootUrl + "/Manage/Register/" + invite.InviteGUID,
CCLogoFile = "cclogo.png@" + Guid.NewGuid().ToString(),
FacebookLogoFile = "fblogo.png@" + Guid.NewGuid().ToString(),
InstaLogoFile = "instalogo.png@" + Guid.NewGuid().ToString(),
};
var body = new TextPart("html") //Inhalt
{
Text = await RunCompileAsync("InviteMail", imwm),
ContentTransferEncoding = ContentEncoding.Base64,
};
var multipart = new MultipartRelated();
multipart.Add(body);
// Bilder für Corporate Design
multipart.Add(LoadInlinePicture("CCLogo.png", imwm.CCLogoFile));
multipart.Add(LoadInlinePicture("FBLogo.png", imwm.FacebookLogoFile));
multipart.Add(LoadInlinePicture("InstaLogo.png", imwm.InstaLogoFile));
message.Body = multipart;
await emailSender.SendEmailAsync(message);
}
private static MimeEntity AppendAlternativeViews(MailMessage mail, MimeEntity originalBody)
{
if (mail.AlternateViews.Count == 0)
{
return(null);
}
var body = new MultipartAlternative();
if (originalBody != null)
{
body.Add(originalBody);
}
foreach (var alternativeView in mail.AlternateViews)
{
var part = GetMimePart(alternativeView);
if (alternativeView.BaseUri != null)
{
part.ContentLocation = alternativeView.BaseUri;
}
// Determine if the alternative view have linked resources
if (alternativeView.LinkedResources.Count == 0)
{
body.Add(part);
continue;
}
// Create a multipart relation
var type = part.ContentType.MediaType + "/" + part.ContentType.MediaSubtype;
var related = new MultipartRelated();
related.ContentType.Parameters.Add("type", type);
if (alternativeView.BaseUri != null)
{
related.ContentLocation = alternativeView.BaseUri;
}
related.Add(part);
// Add all the linked resources to the relation
foreach (var resource in alternativeView.LinkedResources)
{
part = GetMimePart(resource);
if (resource.ContentLink != null)
{
part.ContentLocation = resource.ContentLink;
}
related.Add(part);
}
// Append the linked resource to the alternative view
body.Add(related);
}
return(body);
}
public void TestDocumentRoot()
{
var gif = new MimePart("image", "gif")
{
ContentDisposition = new ContentDisposition(ContentDisposition.Inline)
{
FileName = "empty.gif"
}, ContentId = MimeUtils.GenerateMessageId()
};
var jpg = new MimePart("image", "jpg")
{
ContentDisposition = new ContentDisposition(ContentDisposition.Inline)
{
FileName = "empty.jpg"
}, ContentId = MimeUtils.GenerateMessageId()
};
var html = new TextPart("html")
{
Text = "This is the html body...", ContentId = MimeUtils.GenerateMessageId()
};
var related = new MultipartRelated(gif, jpg, html);
string start;
related.ContentType.Parameters["type"] = "text/html";
related.ContentType.Parameters["start"] = "<" + html.ContentId + ">";
Assert.AreEqual(3, related.Count, "Initial Count");
Assert.AreEqual(html, related.Root, "Initial Root");
Assert.AreEqual(html, related[2], "Initial Root should be the 3rd item.");
var root = new TextPart("html")
{
Text = "This is the replacement root document..."
};
related.Root = root;
Assert.AreEqual(3, related.Count, "Count");
Assert.AreEqual(root, related.Root, "Root");
Assert.AreEqual(root, related[2], "Root should be the 3rd item.");
Assert.IsNotNull(root.ContentId, "Root's Content-Id should not be null.");
Assert.IsNotEmpty(root.ContentId, "Root's Content-Id should not be empty.");
start = "<" + root.ContentId + ">";
Assert.AreEqual(start, related.ContentType.Parameters["start"], "The start parameter does not match.");
related.Clear();
related.Add(gif);
related.Add(jpg);
related.Root = html;
Assert.AreEqual(3, related.Count, "Count");
Assert.AreEqual(html, related.Root, "Root");
Assert.AreEqual(html, related[0], "Root should be the 1st item.");
// Note: MimeKit no longer sets the "start" parameter if the root is the first MIME part due to a bug in Thunderbird.
Assert.IsNull(related.ContentType.Parameters["start"], "The start parameter should be null.");
}
void Render(MultipartRelated related)
{
var cache = new MultipartRelatedUrlCache(related);
NSUrlCache.SharedCache = cache;
Render(related.Root);
}
protected override void VisitMultipartRelated(MultipartRelated related)
{
var root = related.Root;
_stack.Add(related);
root.Accept(this);
_stack.RemoveAt(_stack.Count - 1);
}
void Render(MultipartRelated related)
{
var client = new MultipartRelatedWebViewClient(related);
webView.SetWebViewClient(client);
Render(related.Root);
}
public static void RenderMultipartRelated(MultipartRelated related, WebBrowserEditabil pWebBrowser)
{
var root = related.Root;
var multipart = root as Multipart;
var text = root as TextPart;
if (multipart != null)
{
for (int i = multipart.Count; i > 0; i--)
{
var body = multipart[i - 1] as TextPart;
if (body == null)
{
continue;
}
if (body.ContentType.IsMimeType("text", "html"))
{
text = body;
break;
}
if (text == null)
{
text = body;
}
}
}
if (text != null)
{
if (text.ContentType.IsMimeType("text", "html"))
{
var ctx = new MultipartRelatedImageContext(related);
var converter = new HtmlToHtml()
{
HtmlTagCallback = ctx.HtmlTagCallback
};
var html = converter.Convert(text.Text);
pWebBrowser.DocumentText = html;
}
else
{
RenderText(text, pWebBrowser);
}
}
else
{
return;
}
}
protected override void VisitMultipartRelated(MultipartRelated related)
{
var root = related.Root;
// push this multipart/related onto our stack
stack.Add(related);
// visit the root document
root.Accept(this);
// pop this multipart/related off our stack
stack.RemoveAt(stack.Count - 1);
}
void RenderMultipartRelated(MultipartRelated related)
{
var root = related.Root;
if (root == null)
{
return;
}
var cache = new MultipartRelatedUrlCache(related);
NSUrlCache.SharedCache = cache;
Render(root);
}
void RenderMultipartRelated(MultipartRelated related)
{
var root = related.Root;
if (root == null)
{
return;
}
var client = new MultipartRelatedWebViewClient(related);
webView.SetWebViewClient(client);
Render(root);
}
public async Task GenerateAndSendSchulungsNewsletterAsync(List <Schulung> schulungen, string vorstand)
{
// Kein newsletter ohne Schulungen
if (schulungen.Count() == 0)
{
return;
}
try
{
MimeMessage message = new MimeMessage();
message.From.Add(new MailboxAddress("Schulungsportal", emailSender.GetAbsendeAdresse())); //Absender
// message.To.Add(new MailboxAddress("@everyone")); // Empfaenger
message.Subject = "[INFO/noreply] Schulungsnewsletter"; //Betreff
MailViewModel mvm = new MailViewModel
{
CCLogoFile = "cclogo.png@" + Guid.NewGuid().ToString(),
FacebookLogoFile = "fblogo.png@" + Guid.NewGuid().ToString(),
InstaLogoFile = "instalogo.png@" + Guid.NewGuid().ToString(),
Schulungen = schulungen,
Vorstand = vorstand,
};
var body = new TextPart("html") //Inhalt
{
Text = await RunCompileAsync("NewsletterMail", mvm),
ContentTransferEncoding = ContentEncoding.Base64,
};
var multipart = new MultipartRelated();
multipart.Add(body);
// Bilder für Corporate Design
multipart.Add(LoadInlinePicture("CCLogo.png", mvm.CCLogoFile));
multipart.Add(LoadInlinePicture("FBLogo.png", mvm.FacebookLogoFile));
multipart.Add(LoadInlinePicture("InstaLogo.png", mvm.InstaLogoFile));
message.Body = multipart;
await emailSender.SendEmailAsync(message);
}
catch (Exception e)
{
logger.Error(e);
string code = "#601";
e = new Exception("Fehler beim Versenden des Newsletters (" + e.Message + ") " + code, e);
throw e;
}
}
public string RenderMultipartRelated(MultipartRelated related)
{
var root = related.Root;
var text = root as TextPart;
if (root is Multipart multipart)
{
for (int i = multipart.Count; i > 0; i--)
{
if (!(multipart[i - 1] is TextPart body))
{
continue;
}
if (body.ContentType.IsMimeType("text", "html"))
{
text = body;
break;
}
if (text == null)
{
text = body;
}
}
}
if (text != null)
{
if (text.ContentType.IsMimeType("text", "html"))
{
var ctx = new MultipartRelatedImageContext(related);
var converter = new HtmlToHtml()
{
HtmlTagCallback = ctx.HtmlTagCallback
};
return(converter.Convert(text.Text));
}
else
{
return(RenderText(text));
}
}
else
{
return("Uncknown message type.");
}
}
public void TestArgumentExceptions()
{
var related = new MultipartRelated();
string mimeType, charset;
Assert.Throws <ArgumentNullException> (() => new MultipartRelated((MimeEntityConstructorArgs)null));
Assert.Throws <ArgumentNullException> (() => related.Open(null, out mimeType, out charset));
Assert.Throws <ArgumentNullException> (() => related.Open(null));
Assert.Throws <ArgumentNullException> (() => related.Contains((Uri)null));
Assert.Throws <ArgumentNullException> (() => related.IndexOf((Uri)null));
Assert.Throws <ArgumentNullException> (() => related.Accept(null));
Assert.Throws <ArgumentNullException> (() => related.Root = null);
Assert.Throws <FileNotFoundException> (() => related.Open(new Uri("http://www.xamarin.com/logo.png"), out mimeType, out charset));
Assert.Throws <FileNotFoundException> (() => related.Open(new Uri("http://www.xamarin.com/logo.png")));
}
public void TestGetTextBodyAlternativeInsideRelated()
{
var alternative = new MultipartAlternative();
var plain = new TextPart("plain")
{
Text = "plain\n"
};
var flowed = new TextPart(TextFormat.Flowed)
{
Text = "flowed\n"
};
var richtext = new TextPart("rtf")
{
Text = "rtf\n"
};
var html = new TextPart("html")
{
Text = "html\n"
};
alternative.Add(plain);
alternative.Add(richtext);
alternative.Add(html);
var related = new MultipartRelated();
related.Add(alternative);
var outer = new MultipartAlternative();
outer.Add(related);
Assert.AreEqual("plain\n", outer.TextBody.Replace("\r\n", "\n"), "TextBody");
Assert.AreEqual("html\n", outer.HtmlBody.Replace("\r\n", "\n"), "HtmlBody");
alternative.Insert(1, flowed);
// Note: GetTextBody (Plain) returns Flowed because Flowed is also Plain and is listed after the text/plain part
Assert.AreEqual("flowed\n", outer.GetTextBody(TextFormat.Plain).Replace("\r\n", "\n"), "Plain");
Assert.AreEqual("flowed\n", outer.GetTextBody(TextFormat.Flowed).Replace("\r\n", "\n"), "Flowed");
Assert.AreEqual("rtf\n", outer.GetTextBody(TextFormat.RichText).Replace("\r\n", "\n"), "RichText");
Assert.AreEqual("html\n", outer.GetTextBody(TextFormat.Html).Replace("\r\n", "\n"), "Html");
Assert.IsNull(outer.GetTextBody(TextFormat.Enriched), "Enriched");
}
protected override void VisitMultipartRelated(MultipartRelated related)
{
var multipart = new MultipartRelated();
var root = related.Root;
Push(multipart);
root.Accept(this);
for (int i = 0; i < related.Count; i++)
{
if (related[i] != root)
{
related[i].Accept(this);
}
}
Pop();
}
public async Task GenerateAndSendAbsageAnSchulungsdozentMailAsync(Anmeldung anmeldung, String begruendung, String vorstand)
{
var schulung = anmeldung.Schulung;
MimeMessage message = new MimeMessage();
message.From.Add(new MailboxAddress("Schulungsportal", emailSender.GetAbsendeAdresse())); //Absender
foreach (var dozent in schulung.Dozenten)
{
message.To.Add(GetSafeMailboxAddress(dozent.Name, dozent.EMail)); // Empfaenger
}
message.Subject = "Schulung " + anmeldung.Schulung.Titel + ": Abmeldung eines Teilnehmers"; //Betreff
MailViewModel mwm = new MailViewModel {
Vorstand = vorstand,
Begruendung = begruendung,
Anmeldung = anmeldung,
Schulung = schulung,
CCLogoFile = "cclogo.png@" + Guid.NewGuid().ToString(),
FacebookLogoFile = "fblogo.png@" + Guid.NewGuid().ToString(),
InstaLogoFile = "instalogo.png@" + Guid.NewGuid().ToString(),
};
var body = new TextPart("html") //Inhalt
{
Text = await RunCompileAsync("AbsageAnSchulungsdozentMail", mwm),
ContentTransferEncoding = ContentEncoding.Base64,
};
var multipart = new MultipartRelated();
multipart.Add(body);
// Bilder für Corporate Design
multipart.Add(LoadInlinePicture("CCLogo.png", mwm.CCLogoFile));
multipart.Add(LoadInlinePicture("FBLogo.png", mwm.FacebookLogoFile));
multipart.Add(LoadInlinePicture("InstaLogo.png", mwm.InstaLogoFile));
message.Body = multipart;
await emailSender.SendEmailAsync(message);
}
/// <summary>
/// Diese Methode generiert und schickt eine Mail an die Dozenten der Schulungen einen Tag nach dieser um zu erinnern,
/// die Anwesenheitsliste an den Schulungsbeauftragten zu senden
/// </summary>
/// <param name="anmeldung">Die Anmeldung.</param>
/// <param name="schulung">Die Schulung, zu die abgesagt wird.</param>
public async Task GenerateAndSendGeprueftReminderMail(Schulung schulung, string vorstand)
{
MimeMessage message = new MimeMessage();
message.From.Add(new MailboxAddress("Schulungsportal", emailSender.GetAbsendeAdresse())); //Absender
foreach (var dozent in schulung.Dozenten)
{
message.To.Add(GetSafeMailboxAddress(dozent.Name, dozent.EMail)); // Empfaenger
}
message.Subject = "[INFO/noreply] Reminder Teilnehmerliste " + schulung.Titel; //Betreff
var multipart = new MultipartRelated();
MailViewModel mvm = new MailViewModel
{
CCLogoFile = "cclogo.png@" + Guid.NewGuid().ToString(),
FacebookLogoFile = "fblogo.png@" + Guid.NewGuid().ToString(),
InstaLogoFile = "instalogo.png@" + Guid.NewGuid().ToString(),
Schulung = schulung,
Vorstand = vorstand,
};
var body = new TextPart("html") //Inhalt
{
Text = await RunCompileAsync("GeprueftReminder", mvm),
ContentTransferEncoding = ContentEncoding.Base64,
};
multipart.Add(body);
// Bilder für Corporate Design
multipart.Add(LoadInlinePicture("CCLogo.png", mvm.CCLogoFile));
multipart.Add(LoadInlinePicture("FBLogo.png", mvm.FacebookLogoFile));
multipart.Add(LoadInlinePicture("InstaLogo.png", mvm.InstaLogoFile));
message.Body = multipart;
await emailSender.SendEmailAsync(message);
}
public static MimeMessage ToMimeMessage(this MailMessage mail)
{
if (mail == null)
{
throw new ArgumentNullException(nameof(mail));
}
var headers = new List <Header>();
foreach (var field in mail.Headers.AllKeys)
{
foreach (var value in mail.Headers.GetValues(field))
{
headers.Add(new Header(field, value));
}
}
var message = new MimeMessage(headers.ToArray());
MimeEntity body = null;
// Note: If the user has already sent their MailMessage via System.Net.Mail.SmtpClient,
// then the following MailMessage properties will have been merged into the Headers, so
// check to make sure our MimeMessage properties are empty before adding them.
if (mail.Sender != null)
{
message.Sender = mail.Sender.ToMailboxAddress();
}
if (mail.From != null)
{
message.Headers.Replace(HeaderId.From, string.Empty);
message.From.Add(mail.From.ToMailboxAddress());
}
if (mail.ReplyToList.Count > 0)
{
message.Headers.Replace(HeaderId.ReplyTo, string.Empty);
message.ReplyTo.AddRange(mail.ReplyToList.ToInternetAddressList());
}
if (mail.To.Count > 0)
{
message.Headers.Replace(HeaderId.To, string.Empty);
message.To.AddRange(mail.To.ToInternetAddressList());
}
if (mail.CC.Count > 0)
{
message.Headers.Replace(HeaderId.Cc, string.Empty);
message.Cc.AddRange(mail.CC.ToInternetAddressList());
}
if (mail.Bcc.Count > 0)
{
message.Headers.Replace(HeaderId.Bcc, string.Empty);
message.Bcc.AddRange(mail.Bcc.ToInternetAddressList());
}
if (mail.SubjectEncoding != null)
{
message.Headers.Replace(HeaderId.Subject, mail.SubjectEncoding, mail.Subject ?? string.Empty);
}
else
{
message.Subject = mail.Subject ?? string.Empty;
}
switch (mail.Priority)
{
case MailPriority.Normal:
message.Headers.RemoveAll(HeaderId.XMSMailPriority);
message.Headers.RemoveAll(HeaderId.Importance);
message.Headers.RemoveAll(HeaderId.XPriority);
message.Headers.RemoveAll(HeaderId.Priority);
break;
case MailPriority.High:
message.Headers.Replace(HeaderId.Priority, "urgent");
message.Headers.Replace(HeaderId.Importance, "high");
message.Headers.Replace(HeaderId.XPriority, "2 (High)");
break;
case MailPriority.Low:
message.Headers.Replace(HeaderId.Priority, "non-urgent");
message.Headers.Replace(HeaderId.Importance, "low");
message.Headers.Replace(HeaderId.XPriority, "4 (Low)");
break;
}
if (!string.IsNullOrEmpty(mail.Body))
{
var text = new TextPart(mail.IsBodyHtml ? "html" : "plain");
text.SetText(mail.BodyEncoding ?? Encoding.UTF8, mail.Body);
body = text;
}
if (mail.AlternateViews.Count > 0)
{
var alternative = new MultipartAlternative();
if (body != null)
{
alternative.Add(body);
}
foreach (var view in mail.AlternateViews)
{
var part = GetMimePart(view);
if (view.BaseUri != null)
{
part.ContentLocation = view.BaseUri;
}
if (view.LinkedResources.Count > 0)
{
var type = part.ContentType.MediaType + "/" + part.ContentType.MediaSubtype;
var related = new MultipartRelated();
related.ContentType.Parameters.Add("type", type);
if (view.BaseUri != null)
{
related.ContentLocation = view.BaseUri;
}
related.Add(part);
foreach (var resource in view.LinkedResources)
{
part = GetMimePart(resource);
if (resource.ContentLink != null)
{
part.ContentLocation = resource.ContentLink;
}
related.Add(part);
}
alternative.Add(related);
}
else
{
alternative.Add(part);
}
}
body = alternative;
}
if (body == null)
{
body = new TextPart(mail.IsBodyHtml ? "html" : "plain");
}
if (mail.Attachments.Count > 0)
{
var mixed = new Multipart("mixed");
if (body != null)
{
mixed.Add(body);
}
foreach (var attachment in mail.Attachments)
{
mixed.Add(GetMimePart(attachment));
}
body = mixed;
}
message.Body = body;
return(message);
}
private static MimeEntity ToMimeMessageBody(MailDraftData draft)
{
string textBody;
MailUtil.TryExtractTextFromHtml(draft.HtmlBody, out textBody);
MultipartAlternative alternative = null;
MimeEntity body = null;
if (!string.IsNullOrEmpty(textBody))
{
var textPart = new TextPart("plain")
{
Text = textBody,
ContentTransferEncoding = ContentEncoding.QuotedPrintable
};
if (!string.IsNullOrEmpty(draft.HtmlBody))
{
alternative = new MultipartAlternative {
textPart
};
body = alternative;
}
else
{
body = textPart;
}
}
if (!string.IsNullOrEmpty(draft.HtmlBody))
{
var htmlPart = new TextPart("html")
{
Text = draft.HtmlBody,
ContentTransferEncoding = ContentEncoding.QuotedPrintable
};
MimeEntity html;
if (draft.AttachmentsEmbedded.Any())
{
htmlPart.ContentTransferEncoding = ContentEncoding.Base64;
var related = new MultipartRelated
{
Root = htmlPart
};
related.Root.ContentId = null;
foreach (var emb in draft.AttachmentsEmbedded)
{
var linkedResource = ConvertToMimePart(emb, emb.contentId);
related.Add(linkedResource);
}
html = related;
}
else
{
html = htmlPart;
}
if (alternative != null)
{
alternative.Add(html);
}
else
{
body = html;
}
}
if (!string.IsNullOrEmpty(draft.CalendarIcs))
{
var calendarPart = new TextPart("calendar")
{
Text = draft.CalendarIcs,
ContentTransferEncoding = ContentEncoding.QuotedPrintable
};
calendarPart.ContentType.Parameters.Add("method", draft.CalendarMethod);
if (alternative != null)
{
alternative.Add(calendarPart);
}
else
{
body = calendarPart;
}
}
if (draft.Attachments.Any() || !string.IsNullOrEmpty(draft.CalendarIcs))
{
var mixed = new Multipart("mixed");
if (body != null)
{
mixed.Add(body);
}
foreach (var att in draft.Attachments)
{
var attachment = ConvertToMimePart(att);
mixed.Add(attachment);
}
if (!string.IsNullOrEmpty(draft.CalendarIcs))
{
var filename = "calendar.ics";
switch (draft.CalendarMethod)
{
case Defines.ICAL_REQUEST:
filename = "invite.ics";
break;
case Defines.ICAL_REPLY:
filename = "reply.ics";
break;
case Defines.ICAL_CANCEL:
filename = "cancel.ics";
break;
}
var contentType = new ContentType("application", "ics");
contentType.Parameters.Add("method", draft.CalendarMethod);
contentType.Parameters.Add("name", filename);
var calendarResource = new MimePart(contentType)
{
ContentDisposition = new ContentDisposition(ContentDisposition.Attachment),
ContentTransferEncoding = ContentEncoding.Base64,
FileName = filename
};
var data = Encoding.UTF8.GetBytes(draft.CalendarIcs);
var ms = new MemoryStream(data);
calendarResource.Content = new MimeContent(ms);
mixed.Add(calendarResource);
}
body = mixed;
}
if (body != null)
{
return(body);
}
return(new TextPart("plain")
{
Text = string.Empty
});
}
public MultipartRelatedUrlCache(MultipartRelated related)
{
this.related = related;
}
private MimeMessage BuildMailMessage(NotifyMessage m)
{
var mimeMessage = new MimeMessage
{
Subject = m.Subject
};
var fromAddress = MailboxAddress.Parse(ParserOptions.Default, m.From);
mimeMessage.From.Add(fromAddress);
foreach (var to in m.To.Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries))
{
mimeMessage.To.Add(MailboxAddress.Parse(ParserOptions.Default, to));
}
if (m.ContentType == Pattern.HTMLContentType)
{
var textPart = new TextPart("plain")
{
Text = HtmlUtil.GetText(m.Content),
ContentTransferEncoding = ContentEncoding.QuotedPrintable
};
var multipartAlternative = new MultipartAlternative {
textPart
};
var htmlPart = new TextPart("html")
{
Text = GetHtmlView(m.Content),
ContentTransferEncoding = ContentEncoding.QuotedPrintable
};
if (m.EmbeddedAttachments != null && m.EmbeddedAttachments.Length > 0)
{
var multipartRelated = new MultipartRelated
{
Root = htmlPart
};
foreach (var attachment in m.EmbeddedAttachments)
{
var mimeEntity = ConvertAttachmentToMimePart(attachment);
if (mimeEntity != null)
{
multipartRelated.Add(mimeEntity);
}
}
multipartAlternative.Add(multipartRelated);
}
else
{
multipartAlternative.Add(htmlPart);
}
mimeMessage.Body = multipartAlternative;
}
else
{
mimeMessage.Body = new TextPart("plain")
{
Text = m.Content,
ContentTransferEncoding = ContentEncoding.QuotedPrintable
};
}
if (!string.IsNullOrEmpty(m.ReplyTo))
{
mimeMessage.ReplyTo.Add(MailboxAddress.Parse(ParserOptions.Default, m.ReplyTo));
}
mimeMessage.Headers.Add("Auto-Submitted", string.IsNullOrEmpty(m.AutoSubmitted) ? "auto-generated" : m.AutoSubmitted);
return(mimeMessage);
}
/// <summary>
/// Gets the ready made body part for a mail message either
/// - as TextPart, if there are no inline attachments
/// - as MultipartRelated with a TextPart and one or more MimeParts of type inline attachments
/// </summary>
public override MimeEntity GetBodyPart()
{
// remove all Script elements, because they cannot be used in mail messages
foreach (var element in _htmlDocument.All.Where(e => e is IHtmlScriptElement).ToList())
{
element.Remove();
}
// set the HTML title tag from email subject
var titleEle = _htmlDocument.All.FirstOrDefault(m => m is IHtmlTitleElement) as IHtmlTitleElement;
if (titleEle != null)
{
titleEle.Text = _mailMergeMessage.SearchAndReplaceVars(_mailMergeMessage.Subject, _dataItem);
}
// read the <base href="..."> tag in order to find the embedded image files later on
var baseEle = _htmlDocument.All.FirstOrDefault(m => m is IHtmlBaseElement) as IHtmlBaseElement;
var baseDir = baseEle?.Href == null ? null : new Uri(baseEle.Href);
// only replace the base url if it was not set programmatically
if (_docBaseUri == null)
{
_docBaseUri = baseDir;
}
// remove if base tag is local file reference, because it's not usable in the resulting HTML
if (baseEle != null && baseDir != null && baseDir.Scheme == UriScheme.File)
{
baseEle.Remove();
}
ReplaceImgSrcByCid();
// replace placeholders only in the HTML Body, because e.g.
// in the header there may be CSS definitions with curly brace which collide with SmartFormat {placeholders}
_htmlDocument.Body.InnerHtml = _mailMergeMessage.SearchAndReplaceVars(_htmlDocument.Body.InnerHtml, _dataItem);
var htmlTextPart = new TextPart("html")
{
ContentTransferEncoding = Tools.IsSevenBit(DocHtml)
? ContentEncoding.SevenBit
: TextTransferEncoding != ContentEncoding.SevenBit
? TextTransferEncoding
: ContentEncoding.QuotedPrintable,
};
htmlTextPart.SetText(CharacterEncoding, DocHtml); // MimeKit.ContentType.Charset is set using CharacterEncoding
htmlTextPart.ContentId = MimeUtils.GenerateMessageId();
if (!InlineAtt.Any())
{
return(htmlTextPart);
}
/*
* multipart/related
* text/html
* image/jpeg
* image/png
* image/gif...
*/
var mpr = new MultipartRelated {
htmlTextPart
};
// Produce attachments as part of the multipart/related MIME part,
// as described in RFC2387
// Some older clients may need Inline Attachments instead of LinkedResources:
// RFC2183: 2.1 The Inline Disposition Type
// A bodypart should be marked `inline' if it is intended to be displayed automatically upon display of the message. Inline
// bodyparts should be presented in the order in which they occur, subject to the normal semantics of multipart messages.
foreach (var ia in InlineAtt)
{
try
{
var readyInlineAtt = new FileAttachment(_mailMergeMessage.SearchAndReplaceVarsInFilename(ia.Filename, _dataItem), _mailMergeMessage.SearchAndReplaceVars(ia.DisplayName, _dataItem));
// create an inline image attachment for the file located at path
var attachment = new AttachmentBuilder(readyInlineAtt, CharacterEncoding,
TextTransferEncoding, BinaryTransferEncoding).GetAttachment();
attachment.ContentDisposition = new ContentDisposition(ContentDisposition.Inline);
attachment.ContentId = ia.DisplayName;
attachment.FileName = null; // not needed for inline attachments, save some space
mpr.Add(attachment);
}
catch (FileNotFoundException)
{
BadInlineFiles.Add(ia.Filename);
}
catch (IOException)
{
BadInlineFiles.Add(ia.Filename);
}
}
return(mpr);
}
public MultipartRelatedWebViewClient(MultipartRelated related)
{
this.related = related;
}
public MultipartRelatedImageContext(MultipartRelated related)
{
this.related = related;
}
protected internal override void VisitMultipartRelated(MultipartRelated related)
{
MultipartRelated++;
base.VisitMultipartRelated(related);
}
void RenderMultipartRelated(MultipartRelated related)
{
var root = related.Root;
var multipart = root as Multipart;
var text = root as TextPart;
if (multipart != null)
{
// Note: the root document can sometimes be a multipart/alternative.
// A multipart/alternative is just a collection of alternate views.
// The last part is the format that most closely matches what the
// user saw in his or her email client's WYSIWYG editor.
for (int i = multipart.Count; i > 0; i--)
{
var body = multipart[i - 1] as TextPart;
if (body == null)
{
continue;
}
// our preferred mime-type is text/html
if (body.ContentType.Matches("text", "html"))
{
text = body;
break;
}
if (text == null)
{
text = body;
}
}
}
// check if we have a text/html document
if (text != null && text.ContentType.Matches("text", "html"))
{
var doc = new HtmlAgilityPack.HtmlDocument();
var saved = new Dictionary <MimePart, string> ();
TextPart html;
doc.LoadHtml(text.Text);
// find references to related MIME parts and replace them with links to links to the saved attachments
foreach (var img in doc.DocumentNode.SelectNodes("//img[@src]"))
{
var src = img.Attributes["src"];
int index;
Uri uri;
if (src == null || src.Value == null)
{
continue;
}
// parse the <img src=...> attribute value into a Uri
if (Uri.IsWellFormedUriString(src.Value, UriKind.Absolute))
{
uri = new Uri(src.Value, UriKind.Absolute);
}
else
{
uri = new Uri(src.Value, UriKind.Relative);
}
// locate the index of the attachment within the multipart/related (if it exists)
if ((index = related.IndexOf(uri)) != -1)
{
var attachment = related[index] as MimePart;
// make sure the referenced part is a MimePart (as opposed to another Multipart or MessagePart)
if (attachment != null)
{
string fileName;
// save the attachment (if we haven't already saved it)
if (!saved.TryGetValue(attachment, out fileName))
{
fileName = attachment.FileName;
if (string.IsNullOrEmpty(fileName))
{
fileName = Guid.NewGuid().ToString();
}
using (var stream = File.Create(fileName))
attachment.ContentObject.DecodeTo(stream);
saved.Add(attachment, fileName);
}
// replace the <img src=...> value with the local file name
src.Value = "file://" + Path.GetFullPath(fileName);
}
}
}
if (saved.Count > 0)
{
// we had to make some modifications to the original html part, so create a new
// (temporary) text/html part to render
html = new TextPart("html");
using (var writer = new StringWriter()) {
doc.Save(writer);
html.Text = writer.GetStringBuilder().ToString();
}
}
else
{
html = text;
}
RenderTextPart(html);
}
else
{
// we don't know what we have, so render it as an entity
RenderEntity(related.Root);
}
}
void RenderMultipartRelated(MultipartRelated related)
{
var root = related.Root;
var multipart = root as Multipart;
var text = root as TextPart;
if (multipart != null)
{
// Note: the root document can sometimes be a multipart/alternative.
// A multipart/alternative is just a collection of alternate views.
// The last part is the format that most closely matches what the
// user saw in his or her email client's WYSIWYG editor.
for (int i = multipart.Count; i > 0; i--)
{
var body = multipart[i - 1] as TextPart;
if (body == null)
{
continue;
}
// our preferred mime-type is text/html
if (body.ContentType.IsMimeType("text", "html"))
{
text = body;
break;
}
if (text == null)
{
text = body;
}
}
}
// check if we have a text/html document
if (text != null)
{
if (text.ContentType.IsMimeType("text", "html"))
{
// replace image src urls that refer to related MIME parts with "data:" urls
// Note: we could also save the related MIME part content to disk and use
// file:// urls instead.
var ctx = new MultipartRelatedImageContext(related);
var converter = new HtmlToHtml()
{
HtmlTagCallback = ctx.HtmlTagCallback
};
var html = converter.Convert(text.Text);
webBrowser.DocumentText = html;
}
else
{
RenderText(text);
}
}
else
{
// we don't know how to render this type of content
return;
}
}
private static MimeEntity ToMimeMessageBody(MailDraft draft)
{
var linkedResources = new AttachmentCollection(true);
var attachments = new AttachmentCollection();
string textBody;
MailUtil.TryExtractTextFromHtml(draft.HtmlBody, out textBody);
MultipartAlternative multipartAlternative = null;
MimeEntity body = null;
if (!string.IsNullOrEmpty(textBody))
{
var textPart = new TextPart("plain")
{
Text = textBody,
ContentTransferEncoding = ContentEncoding.QuotedPrintable
};
if (!string.IsNullOrEmpty(draft.HtmlBody))
{
multipartAlternative = new MultipartAlternative {
textPart
};
body = multipartAlternative;
}
else
{
body = textPart;
}
}
if (!string.IsNullOrEmpty(draft.HtmlBody))
{
var htmlPart = new TextPart("html")
{
Text = draft.HtmlBody,
ContentTransferEncoding = ContentEncoding.QuotedPrintable
};
MimeEntity tempPart;
if (draft.AttachmentsEmbedded.Any())
{
var multipartRelated = new MultipartRelated
{
Root = htmlPart
};
foreach (var emb in draft.AttachmentsEmbedded)
{
MimeEntity linkedResource;
if (!emb.data.Any())
{
var s3Key = MailStoragePathCombiner.GerStoredFilePath(emb);
var contentType =
ContentType.Parse(string.IsNullOrEmpty(emb.contentType)
? MimeMapping.GetMimeMapping(emb.fileName)
: emb.contentType);
using (var stream = StorageManager
.GetDataStoreForAttachments(emb.tenant)
.GetReadStream(s3Key))
{
linkedResource = linkedResources.Add(emb.fileName, stream, contentType);
}
}
else
{
linkedResource = linkedResources.Add(emb.fileName, emb.data);
}
linkedResource.ContentId = emb.contentId;
multipartRelated.Add(linkedResource);
}
tempPart = multipartRelated;
}
else
{
tempPart = htmlPart;
}
if (multipartAlternative != null)
{
multipartAlternative.Add(tempPart);
}
else
{
body = tempPart;
}
}
if (!string.IsNullOrEmpty(draft.CalendarIcs))
{
var calendarPart = new TextPart("calendar")
{
Text = draft.CalendarIcs,
ContentTransferEncoding = ContentEncoding.QuotedPrintable
};
calendarPart.ContentType.Parameters.Add("method", draft.CalendarMethod);
if (multipartAlternative != null)
{
multipartAlternative.Add(calendarPart);
}
else
{
body = calendarPart;
}
}
if (draft.Attachments.Any() || !string.IsNullOrEmpty(draft.CalendarIcs))
{
var multipart = new Multipart("mixed");
if (body != null)
{
multipart.Add(body);
}
foreach (var att in draft.Attachments)
{
MimeEntity attachmentResource;
if (!att.data.Any())
{
var s3Key = MailStoragePathCombiner.GerStoredFilePath(att);
using (var stream = StorageManager
.GetDataStoreForAttachments(att.tenant)
.GetReadStream(s3Key))
{
attachmentResource = attachments.Add(att.fileName, stream);
}
}
else
{
attachmentResource = attachments.Add(att.fileName, att.data);
}
multipart.Add(attachmentResource);
}
if (!string.IsNullOrEmpty(draft.CalendarIcs))
{
var filename = "calendar.ics";
switch (draft.CalendarMethod)
{
case "REQUEST":
filename = "invite.ics";
break;
case "REPLY":
filename = "reply.ics";
break;
case "CANCEL":
filename = "cancel.ics";
break;
}
var contentType = new ContentType("application", "ics");
contentType.Parameters.Add("method", draft.CalendarMethod);
contentType.Parameters.Add("name", filename);
var data = Encoding.UTF8.GetBytes(draft.CalendarIcs);
var calendarResource = attachments.Add(filename, data, contentType);
multipart.Add(calendarResource);
}
body = multipart;
}
if (body != null)
{
return(body);
}
return(new TextPart("plain")
{
Text = string.Empty
});
}
