public override void SendMessage(HtmlMailMessage message)
{
if (message.To.Count > 0)
{
SmtpClient client = new SmtpClient();
AlternateView avHtml = AlternateView.CreateAlternateViewFromString(
message.Body, null, System.Net.Mime.MediaTypeNames.Text.Html);
string textBody = "You must use an e-mail client that supports HTML messages";
// Create an alternate view for unsupported clients
AlternateView avText = AlternateView.CreateAlternateViewFromString(
textBody, null, System.Net.Mime.MediaTypeNames.Text.Plain);
foreach (KeyValuePair<string, Stream> item in message.LinkedResources)
{
LinkedResource linkedresource = new LinkedResource(
item.Value, System.Net.Mime.MediaTypeNames.Image.Jpeg);
linkedresource.ContentId = item.Key;
avHtml.LinkedResources.Add(linkedresource);
}
message.AlternateViews.Add(avHtml);
message.AlternateViews.Add(avText);
client.Send(message);
}
}
public virtual HtmlMailMessage Create(object holder, Stream template, Dictionary<string, string> parameters)
{
HtmlMailMessage message = new HtmlMailMessage();
Prepare(message, holder, template, parameters);
return message;
}
protected void Prepare(HtmlMailMessage message, object holder, Stream template, Dictionary<string, string> parameters, bool closeStream)
{
try
{
PrepareWithStringBuilders(message, holder, template, parameters);
}
finally
{
if (closeStream)
template.Close();
}
}
protected abstract void Prepare(HtmlMailMessage message, object holder, Stream template, Dictionary<string, string> parameters);
public abstract void SendMessage(HtmlMailMessage message);
private static void PrepareWithStringBuilders(HtmlMailMessage message, object holder, Stream template, Dictionary<string, string> parameters)
{
if (template == null)
throw new ArgumentNullException("template");
if (holder == null)
throw new ArgumentNullException("holder");
if (parameters == null)
throw new ArgumentNullException("parameters");
try
{
// Reset postition of the current stream to fist byte.
if (template.Position != 0)
template.Position = 0;
// Initializing a new instance of the XslCompiledTransform
XslCompiledTransform xslCompiledTransform = new XslCompiledTransform();
// Creating fast, non-cached, forward-only reader to access to the XSL resource.
XmlReader reader = XmlReader.Create(template);
// Loads and compiles de style sheet
try
{
xslCompiledTransform.Load(reader);
}
finally
{
reader.Close();
}
// Initialize a new instance of a string builder.
StringBuilder builder = new StringBuilder();
// Creating a fast, non-cached, forward-only writer for generating streams containing XML data.
XmlWriter writer = XmlWriter.Create(builder);
// Initializing the serializer.
XmlSerializer serializer = new XmlSerializer(holder.GetType());
// Generating the stream with the holder serialized.
serializer.Serialize(writer, holder);
// Initializing an instance of a XML document.
XmlDocument document = new XmlDocument();
// Loading the XML already generated with the serializer.
document.LoadXml(builder.ToString());
// Creates a navigator for navigating through the document.
XPathNavigator navigator = document.CreateNavigator();
// Creates a new instance of a XSLT argument list.
XsltArgumentList arguments = new XsltArgumentList();
// Adds parameters specified in parameters.
foreach (KeyValuePair<string, string> entry in parameters)
arguments.AddParam(entry.Key, string.Empty, entry.Value);
// Creates a new stream for store the XML result.
StringBuilder result = new StringBuilder();
// Create a fast, non-cached, forward-only writer for generating streams containint XML data.
XmlWriter writerResult = XmlWriter.Create(result);
// Executes the transform using the navigator, the documents.
xslCompiledTransform.Transform(navigator, arguments, writerResult);
// Generating email message.
XmlDocument emailMessage = new XmlDocument();
emailMessage.LoadXml(result.ToString());
//Create an XmlNamespaceManager for resolving namespaces.
XmlNamespaceManager manager = new XmlNamespaceManager(emailMessage.NameTable);
manager.AddNamespace("html", "http://www.w3.org/1999/xhtml");
XmlNode subject = emailMessage.SelectSingleNode("//html:title", manager);
if (subject != null)
message.Subject = subject.InnerText.Replace("\r", string.Empty).Replace("\n", string.Empty).Replace("\t", string.Empty);
// Generating email body.
XmlNode body = emailMessage.SelectSingleNode("//html:body", manager);
if (body != null)
{
message.Body = body.InnerXml;
if (message.Body.Length > 0)
message.Body = message.Body.Replace("&", "&");
}
}
catch (IOException ex)
{
// Set stream position to 0;
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (NotSupportedException ex)
{
// Set stream position to 0;
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (ObjectDisposedException ex)
{
// Set stream position to 0;
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (SecurityException ex)
{
// Loading template failed.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (XsltException ex)
{
// Loading template failed.
// Transform failed.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (XmlException ex)
{
// Loading document serialized.
// Loading transformed document failed.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (InvalidOperationException ex)
{
// Serializer failed.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (ArgumentException ex)
{
// Add parameter failed.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (XPathException ex)
{
// Processing message.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
}
protected override void Prepare(HtmlMailMessage message, object holder, Stream template, Dictionary<string, string> parameters)
{
Prepare(message, holder, template, parameters, false);
}
private void PrepareWithStreams(HtmlMailMessage message, object holder, Stream template, Dictionary<string, string> parameters)
{
if (template == null)
throw new ArgumentNullException("template");
if (holder == null)
throw new ArgumentNullException("holder");
if (parameters == null)
throw new ArgumentNullException("parameters");
try
{
// Reset postition of the current stream to fist byte.
if (template.Position != 0)
template.Position = 0;
// Initializing a new instance of the XslCompiledTransform
XslCompiledTransform xslCompiledTransform = new XslCompiledTransform();
// Creating fast, non-cached, forward-only reader to access to the XSL resource.
XmlReader reader = XmlReader.Create(template);
// Loads and compiles de style sheet
try
{
xslCompiledTransform.Load(reader);
}
finally
{
reader.Close();
}
// Creates a new stream for store the XML serialized holder.
MemoryStream ticketStream = new MemoryStream();
try
{
XmlWriterSettings settings = new XmlWriterSettings();
// The xml declaration is already included.
settings.OmitXmlDeclaration = true;
// It is a document.
settings.ConformanceLevel = ConformanceLevel.Document;
// Do not close the memory stream.
settings.CloseOutput = false;
// Using same encoding as paramater stream.
settings.Encoding = xslCompiledTransform.OutputSettings.Encoding;
// Creates a new fast, non-cached, forward-only generator of XML stream.
XmlWriter writer = XmlWriter.Create(ticketStream, settings);
try
{
// Initializing the serializer.
XmlSerializer serializer = new XmlSerializer(holder.GetType());
// Generating the stream with the holder serialized.
serializer.Serialize(writer, holder);
}
finally
{
writer.Close();
}
// Reset the memory stream position because we're gonna user with a reader instead the writer.
ticketStream.Position = 0;
// Initializing an instance of a XML document.
XmlDocument document = new XmlDocument();
// Creates a fast non-cached, forward-only reader.
reader = XmlReader.Create(ticketStream);
// Loading the XML already generated with the serializer.
try
{
document.Load(reader);
}
finally
{
reader.Close();
}
// Creates a navigator for navigating through the document.
XPathNavigator navigator = document.CreateNavigator();
// Creates a new instance of a XSLT argument list.
XsltArgumentList arguments = new XsltArgumentList();
// Adds parameters specified in parameters.
foreach (KeyValuePair<string, string> entry in parameters)
arguments.AddParam(entry.Key, string.Empty, entry.Value);
MemoryStream resultStream = new MemoryStream();
try
{
XmlWriter writerResult = XmlWriter.Create(resultStream, settings);
try
{
// Executes the transform using the navigator, the documents.
xslCompiledTransform.Transform(navigator, arguments, writerResult);
}
finally
{
writerResult.Close();
}
resultStream.Position = 0;
// Generating email message.
XmlDocument emailMessage = new XmlDocument();
// Creates a fast, non-cached, forward-only reader.
XmlReader readerResult = XmlReader.Create(resultStream);
try
{
emailMessage.Load(readerResult);
}
finally
{
readerResult.Close();
}
//Create an XmlNamespaceManager for resolving namespaces.
XmlNamespaceManager manager = new XmlNamespaceManager(emailMessage.NameTable);
manager.AddNamespace("html", "http://www.w3.org/1999/xhtml");
XmlNode subject = emailMessage.SelectSingleNode("//html:title", manager);
if (subject != null)
message.Subject = subject.InnerText;
// Generating email body.
XmlNode body = emailMessage.SelectSingleNode("//html:body", manager);
if (body != null)
{
message.Body = body.InnerXml;
if (message.Body.Length > 0)
message.Body = message.Body.Replace("&", "&");
}
}
finally
{
resultStream.Close();
}
}
finally
{
ticketStream.Close();
}
}
catch (IOException ex)
{
// Set stream position to 0;
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (NotSupportedException ex)
{
// Set stream position to 0;
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (ObjectDisposedException ex)
{
// Set stream position to 0;
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (SecurityException ex)
{
// Loading template failed.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (XsltException ex)
{
// Loading template failed.
// Transform failed.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (XmlException ex)
{
// Loading document serialized.
// Loading transformed document failed.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (InvalidOperationException ex)
{
// Serializer failed.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (ArgumentException ex)
{
// Add parameter failed.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
catch (XPathException ex)
{
// Processing message.
throw new ApplicationException("Error while preparing mailMessage.", ex);
}
}
public static void SendMessage(HtmlMailMessage message)
{
_defaultProvider.SendMessage(message);
}
