public string CreateFile(MimeMessage mailMessageEx)
{
if (mailMessageEx == null)
{
throw new ArgumentNullException(nameof(mailMessageEx));
}
var tempDir = CreateUniqueTempDirectory();
var visitor = new HtmlPreviewVisitor(tempDir);
mailMessageEx.Accept(visitor);
string htmlFile = Path.Combine(tempDir, "index.html");
_logger.Verbose("Writing HTML Preview file {HtmlFile}", htmlFile);
File.WriteAllText(htmlFile, visitor.HtmlBody, Encoding.Unicode);
return(htmlFile);
}
public ActionResult GetAttachment([FromRoute] Guid id, [FromQuery] string attachmentid)
{
if (Guid.Empty == id)
{
return(this.BadRequest());
}
var mail = this.mailRepository.Get(id);
if (mail == null)
{
return(this.NotFound());
}
using var ms = new MemoryStream(mail.RawEmail);
ms.Position = 0;
var message = MimeMessage.Load(ms);
var visitor = new HtmlPreviewVisitor();
message.Accept(visitor);
var attachment = message.Attachments.FirstOrDefault(a => a.IsAttachment && (a.ContentId != null? a.ContentId : a.ContentDisposition.FileName?.GetHashCode().ToString()) == attachmentid);
if (attachment == null)
{
return(NotFound());
}
var attachmentStream = ParseAttachment(attachment);
attachmentStream.Position = 0;
var result = new FileStreamResult(attachmentStream, attachment.ContentType.MimeType);
result.FileDownloadName = attachment.ContentDisposition.FileName;
return(result);
}
private static MimeEntity GetEmailFile(string strFullFilePath, string strEmailFileName, string ConnectionString)
{
GeneralSettings objGeneralSettings = new GeneralSettings(ConnectionString);
MimeEntity objMimeEntity = null;
if (objGeneralSettings.StorageFileType == "AzureStorage")
{
CloudStorageAccount storageAccount = null;
CloudBlobContainer cloudBlobContainer = null;
// Retrieve the connection string for use with the application.
string storageConnectionString = objGeneralSettings.AzureStorageConnection;
// Check whether the connection string can be parsed.
if (CloudStorageAccount.TryParse(storageConnectionString, out storageAccount))
{
// Ensure there is a AdefHelpDesk Container
CloudBlobClient cloudBlobClient = storageAccount.CreateCloudBlobClient();
cloudBlobContainer = cloudBlobClient.GetContainerReference("adefhelpdesk-files");
CloudBlockBlob cloudBlockBlob = cloudBlobContainer.GetBlockBlobReference(strFullFilePath);
// Download
cloudBlockBlob.FetchAttributesAsync().Wait();
long fileByteLength = cloudBlockBlob.Properties.Length;
byte[] fileContent = new byte[fileByteLength];
for (int i = 0; i < fileByteLength; i++)
{
fileContent[i] = 0x20;
}
cloudBlockBlob.DownloadToByteArrayAsync(fileContent, 0).Wait();
using (MemoryStream memstream = new MemoryStream(fileContent))
{
var message = MimeMessage.Load(memstream);
var visitor = new HtmlPreviewVisitor();
message.Accept(visitor);
// Loop through attachments
foreach (var item in visitor.Attachments)
{
if (item.ContentDisposition.FileName != null)
{
if (item.ContentDisposition.FileName == strEmailFileName)
{
return(item);
}
}
}
}
}
else
{
throw new Exception("AzureStorage configured but AzureStorageConnection value cannot connect.");
}
}
else
{
using (var fileContents = System.IO.File.OpenRead(strFullFilePath))
{
var message = MimeMessage.Load(fileContents);
var visitor = new HtmlPreviewVisitor();
message.Accept(visitor);
// Loop through attachments
foreach (var item in visitor.Attachments)
{
if (item.ContentDisposition.FileName != null)
{
if (item.ContentDisposition.FileName == strEmailFileName)
{
return(item);
}
}
}
}
}
return(objMimeEntity);
}
private async void EmailList_ItemClick(object sender, ItemClickEventArgs e)
{
if (EmailList.SelectionMode == ListViewSelectionMode.Multiple)
{
return;
}
if (e.ClickedItem is EmailItem Email)
{
if (Email == LastSelectedItem)
{
return;
}
LastSelectedItem = Email;
//建立HtmlPreviewVisitor的实例以解析邮件中的HTML内容
HtmlPreviewVisitor visitor = new HtmlPreviewVisitor(ApplicationData.Current.TemporaryFolder.Path);
Email.Message.Accept(visitor);
if (Email.FileEntitys.Count() != 0)
{
EmailDetail.ThisPage.FileExpander.Visibility = Visibility.Visible;
EmailDetail.ThisPage.FileCollection.Clear();
foreach (var Entity in Email.Message.Attachments)
{
EmailDetail.ThisPage.FileCollection.Add(new EmailAttachment(Entity));
}
}
else
{
EmailDetail.ThisPage.FileExpander.IsExpanded = false;
EmailDetail.ThisPage.FileExpander.Visibility = Visibility.Collapsed;
}
if (EmailDetail.ThisPage.WebBrowser == null)
{
//为获得最大的流畅性能，将WebView控件设置为具有单独的进程执行
EmailDetail.ThisPage.WebBrowser = new WebView(WebViewExecutionMode.SeparateProcess)
{
Visibility = Visibility.Collapsed
};
EmailDetail.ThisPage.Gr.Children.Add(EmailDetail.ThisPage.WebBrowser);
EmailDetail.ThisPage.WebBrowser.SetValue(Grid.RowProperty, 1);
}
if (EmailDetail.ThisPage.WebBrowser.Visibility == Visibility.Collapsed)
{
EmailDetail.ThisPage.WebBrowser.Visibility = Visibility.Visible;
EmailDetail.ThisPage.CommandBarContorl.Visibility = Visibility.Visible;
}
//将解析出来的HTML交由WebBrowser进行读取解析呈现
EmailDetail.ThisPage.WebBrowser.NavigateToString(visitor.HtmlBody);
if (Email.IsNotSeenIndicator == 1)
{
await Email.SetSeenIndicatorAsync(Visibility.Collapsed);
for (int i = 0; i < EmailNotSeenItemCollection.Count; i++)
{
if (EmailNotSeenItemCollection[i].Id == Email.Id)
{
EmailNotSeenItemCollection.RemoveAt(i);
}
}
}
}
}
/// <summary>
/// 异步获取邮件信息
/// </summary>
/// <param name="action">获取回调</param>
/// <param name="number">获取多少条</param>
/// <returns></returns>
public async Task mailAsync(Action <EmailListView, int, int> callBack, int?number)
{
using (var client = clientService)
{
try
{
var inbox = client.Inbox;
inbox.Open(FolderAccess.ReadOnly);
if (inbox.Count > 0)
{
var total = inbox.Count - 1;
var thisNumber = 1;
for (int i = total; i >= 0; i--)
{
var message = inbox.GetMessage(i);
var filePath = AttachmentPath + message.MessageId + "\\";
var files = new List <string>();
foreach (MimeEntity attachment in message.Attachments)
{
if (!Directory.Exists(filePath))
{
Directory.CreateDirectory(filePath);
}
var fileName = attachment.ContentDisposition?.FileName ?? attachment.ContentType.Name;
var lastName = filePath + fileName;
if (!File.Exists(lastName))
{
using (var stream = File.Create(filePath + fileName))
{
if (attachment is MessagePart)
{
var rfc822 = (MessagePart)attachment;
rfc822.Message.WriteTo(stream);
}
else
{
var part = (MimePart)attachment;
part.Content.DecodeTo(stream);
}
}
}
files.Add(lastName.Replace(filePath, string.Empty));
}
var address = message.From.Select(x => (MailboxAddress)x).First();
var Visitor = new HtmlPreviewVisitor(AttachmentPath);
message.Accept(Visitor);
var model = new EmailListView
{
FromEmail = address.Address,
Title = message.Subject,
SendTime = message.Date.ToString("yyyy-MM-dd HH:mm:ss"),
MessageId = message.MessageId,
Body = message.TextBody,
Html = Visitor.HtmlBody,
MainEmail = EmailManger.Email,
Mark = 0,
Files = string.Join(",", files)
};
await Task.Run(() => callBack(model, thisNumber, inbox.Count)).ConfigureAwait(false);
if (number != null)
{
if (number - thisNumber <= 0)
{
return;
}
}
thisNumber++;
}
}
}
catch (Exception ex)
{
client.Disconnect(true);
throw ex;
}
}
}
private static void SetEmailContents(string FileName, int intAttachmentId, string strFullFilePath, string ConnectionString, ref DTOTaskDetail objDTOTaskDetail)
{
GeneralSettings objGeneralSettings = new GeneralSettings(ConnectionString);
if (objGeneralSettings.StorageFileType == "AzureStorage")
{
CloudStorageAccount storageAccount = null;
CloudBlobContainer cloudBlobContainer = null;
// Retrieve the connection string for use with the application.
string storageConnectionString = objGeneralSettings.AzureStorageConnection;
// Check whether the connection string can be parsed.
if (CloudStorageAccount.TryParse(storageConnectionString, out storageAccount))
{
// Ensure there is a AdefHelpDesk Container
CloudBlobClient cloudBlobClient = storageAccount.CreateCloudBlobClient();
cloudBlobContainer = cloudBlobClient.GetContainerReference("adefhelpdesk-files");
CloudBlockBlob cloudBlockBlob = cloudBlobContainer.GetBlockBlobReference(FileName);
// Download
cloudBlockBlob.FetchAttributesAsync().Wait();
long fileByteLength = cloudBlockBlob.Properties.Length;
byte[] fileContent = new byte[fileByteLength];
for (int i = 0; i < fileByteLength; i++)
{
fileContent[i] = 0x20;
}
cloudBlockBlob.DownloadToByteArrayAsync(fileContent, 0).Wait();
using (MemoryStream memstream = new MemoryStream(fileContent))
{
var message = MimeMessage.Load(memstream);
var visitor = new HtmlPreviewVisitor();
message.Accept(visitor);
objDTOTaskDetail.emailDescription = Utility.CleanOutlookFontDefinitions(visitor.HtmlBody);
// Add attachments (if any)
objDTOTaskDetail.colDTOAttachment = new List <DTOAttachment>();
foreach (var item in visitor.Attachments)
{
if (item.ContentDisposition.FileName != null)
{
DTOAttachment objDTOAttachment = new DTOAttachment();
objDTOAttachment.attachmentID = intAttachmentId;
objDTOAttachment.attachmentPath = "EML";
objDTOAttachment.userId = "-1";
objDTOAttachment.fileName = item.ContentDisposition.FileName;
objDTOAttachment.originalFileName = strFullFilePath;
objDTOTaskDetail.colDTOAttachment.Add(objDTOAttachment);
}
}
}
}
else
{
throw new Exception("AzureStorage configured but AzureStorageConnection value cannot connect.");
}
}
else
{
using (var fileContents = System.IO.File.OpenRead(strFullFilePath))
{
var message = MimeMessage.Load(fileContents);
var visitor = new HtmlPreviewVisitor();
message.Accept(visitor);
objDTOTaskDetail.emailDescription = Utility.CleanOutlookFontDefinitions(visitor.HtmlBody);
// Add attachments (if any)
objDTOTaskDetail.colDTOAttachment = new List <DTOAttachment>();
foreach (var item in visitor.Attachments)
{
if (item.ContentDisposition.FileName != null)
{
DTOAttachment objDTOAttachment = new DTOAttachment();
objDTOAttachment.attachmentID = intAttachmentId;
objDTOAttachment.attachmentPath = "EML";
objDTOAttachment.userId = "-1";
objDTOAttachment.fileName = item.ContentDisposition.FileName;
objDTOAttachment.originalFileName = strFullFilePath;
objDTOTaskDetail.colDTOAttachment.Add(objDTOAttachment);
}
}
}
}
}
private MailViewModel MapMailToMailViewModel(Mail mail, bool transformMimeMessage)
{
if (mail == null)
{
return(new MailViewModel());
}
string rawEmail = string.Empty;
string renderedEmail = string.Empty;
IEnumerable <AttachmentViewModel> attachements = new List <AttachmentViewModel>();
if (transformMimeMessage && mail.RawEmail != null && mail.RawEmail.Length > 0)
{
using var ms = new MemoryStream(mail.RawEmail);
ms.Position = 0;
var message = MimeMessage.Load(ms);
var visitor = new HtmlPreviewVisitor();
message.Accept(visitor);
int attachment = 1;
attachements = message.Attachments.Where(a => a.IsAttachment).Select(a =>
new AttachmentViewModel
{
Id = a.ContentId != null ? a.ContentId : a.ContentDisposition.FileName?.GetHashCode().ToString(),
Filename = !string.IsNullOrWhiteSpace(a.ContentDisposition?.FileName) ? a.ContentDisposition?.FileName : $"Attachement {attachment++}",
Size = a.ContentDisposition.Size.HasValue ? a.ContentDisposition.Size.Value : ParseAttachment(a).Length,
MimeType = a.ContentType.MimeType
}).ToList();
renderedEmail = visitor.HtmlBody;
using (var msEml = new MemoryStream())
{
message.WriteTo(msEml);
msEml.Position = 0;
StreamReader reader = new StreamReader(msEml);
rawEmail = reader.ReadToEnd();
}
}
return(new MailViewModel
{
HtmlBody = !string.IsNullOrWhiteSpace(mail.HtmlBody) ? mail.HtmlBody.Trim() : string.Empty,
TextBody = !string.IsNullOrWhiteSpace(mail.TextBody) ? mail.TextBody.Trim() : string.Empty,
RenderedHtml = PrettifyHtml(renderedEmail.Trim()),
RawEmail = rawEmail.Trim(),
From = mail.From,
MailId = mail.MailId,
ReceiveDate = mail.ReceiveDate,
Status = mail.Status,
Subject = mail.Subject,
To = mail.To,
MailboxId = mail.MailboxId,
Attachements = attachements
});
}
