/// <summary>
/// Generates the email.
/// </summary>
/// <param name="collectionOfAttachments">The collection of attachments.</param>
/// <returns>Stream Content</returns>
internal static Stream GenerateEmail(Dictionary <string, Stream> collectionOfAttachments, string[] documentUrls, bool attachmentFlag)
{
Stream result = null;
try
{
MemoryStream mailFile = GetMailAsStream(collectionOfAttachments, documentUrls, attachmentFlag);
mailFile.Position = 0;
WebOperationContext.Current.OutgoingResponse.Headers.Clear();
WebOperationContext.Current.OutgoingResponse.ContentType = MailHelperFunctions.ReturnExtension(string.Empty);
WebOperationContext.Current.OutgoingResponse.ContentLength = mailFile.Length;
WebOperationContext.Current.OutgoingResponse.Headers.Add("Content-Description: File Transfer");
WebOperationContext.Current.OutgoingResponse.Headers.Add("Content-Disposition", "attachment; filename=" + ServiceConstantStrings.TempEmailName + DateTime.Now + ConstantStrings.EmailFileExtension);
WebOperationContext.Current.OutgoingResponse.Headers.Add("Content-Transfer-Encoding: binary");
WebOperationContext.Current.OutgoingResponse.Headers.Add("Expires: 0");
WebOperationContext.Current.OutgoingResponse.Headers.Add("Cache-Control: must-revalidate, post-check=0, pre-check=0");
WebOperationContext.Current.OutgoingResponse.Headers.Add("Pragma: public");
result = mailFile;
}
catch (Exception exception)
{
Logger.LogError(exception, MethodBase.GetCurrentMethod().DeclaringType.Name, MethodBase.GetCurrentMethod().Name, ServiceConstantStrings.LogTableName);
Stream mailFile = null;
result = mailFile;
}
return(result);
}
public Stream SaveEmail(RequestObject requestObject, MailAttachmentDetails mailAttachmentDetails)
{
Stream result = null;
try
{
if (null != requestObject && null != mailAttachmentDetails && ValidationHelperFunctions.CheckRequestValidatorToken())
{
///// filename, stream
Dictionary <string, Stream> collectionOfAttachments = new Dictionary <string, Stream>();
///// full URL, relative URL
string[] allAttachmentUrl = mailAttachmentDetails.FullUrl.Split(';');
ClientContext clientContext;
bool attachmentFlag = mailAttachmentDetails.IsAttachmentCall;
if (attachmentFlag)
{
foreach (string attachmentUrl in allAttachmentUrl)
{
if (!string.IsNullOrWhiteSpace(attachmentUrl))
{
// Do not use 'using' to generate client context here since it will dispose the object before other functions get executed
clientContext = ServiceUtility.GetClientContext(requestObject.SPAppToken, new Uri(attachmentUrl.Split(Convert.ToChar(ConstantStrings.DOLLAR, CultureInfo.InvariantCulture))[0]), requestObject.RefreshToken);
Microsoft.SharePoint.Client.File file = clientContext.Web.GetFileByServerRelativeUrl(attachmentUrl.Split(Convert.ToChar(ConstantStrings.DOLLAR, CultureInfo.InvariantCulture))[1]);
ClientResult <System.IO.Stream> fileStream = file.OpenBinaryStream();
///// Load the Stream data for the file
clientContext.Load(file);
clientContext.ExecuteQuery();
///// In order to allow for multiple files with the same name, we provide a GUID tag to ensure unique keys in the dictionary
string uniqueKeyWithDate = attachmentUrl.Split(Convert.ToChar(ConstantStrings.DOLLAR, CultureInfo.InvariantCulture))[1].Substring(attachmentUrl.Split(Convert.ToChar(ConstantStrings.DOLLAR, CultureInfo.InvariantCulture))[1].LastIndexOf(Convert.ToChar(ConstantStrings.BackwardSlash, CultureInfo.InvariantCulture)) + 1) + ConstantStrings.DOLLAR + Guid.NewGuid();
collectionOfAttachments.Add(uniqueKeyWithDate, fileStream.Value);
}
}
}
result = MailHelperFunctions.GenerateEmail(collectionOfAttachments, allAttachmentUrl, attachmentFlag);
}
else
{
result = BriefcaseHelperFunction.ReturnErrorFile(TextConstants.MessageNoInputs);
}
}
catch (Exception exception)
{
Logger.LogError(exception, MethodBase.GetCurrentMethod().DeclaringType.Name, MethodBase.GetCurrentMethod().Name, ServiceConstantStrings.LogTableName);
result = BriefcaseHelperFunction.ReturnErrorFile(string.Concat(ConstantStrings.ServiceResponse, exception.HResult, exception.Message));
}
return(result);
}
