protected async override Task <ProcessResult> OnPolling(Shared.Jobs.PollerJobParameters parameters, string workingFolder)
{
string localFile = await DownloadBlob(
parameters.TenantId,
parameters.JobId,
parameters.FileName,
workingFolder);
String[] permittedExtension = null;
if (parameters.All.ContainsKey("extensions"))
{
var extensionsPermitted = parameters.All["extensions"];
if (extensionsPermitted != "*")
{
permittedExtension = extensionsPermitted.Split('|');
}
}
var extension = Path.GetExtension(localFile);
var unzippingDirectory = new DirectoryInfo(Path.Combine(workingFolder, Guid.NewGuid().ToString())).FullName;
if (!Directory.Exists(unzippingDirectory))
{
Directory.CreateDirectory(unzippingDirectory);
}
if (extension == ".zip")
{
//we can handle unzipping everything.
ZipFile.ExtractToDirectory(localFile, unzippingDirectory);
IEnumerable <String> files = Directory.EnumerateFiles(unzippingDirectory, "*.*", SearchOption.AllDirectories);
Int32 uploadCount = await UploadAttachmentListToDocumentStore(parameters, permittedExtension, unzippingDirectory, files);
Logger.DebugFormat("Uploaded {0} attachments", uploadCount);
}
else if (extension == ".eml")
{
using (var stream = File.Open(localFile, FileMode.Open, FileAccess.Read))
{
var message = MsgReader.Mime.Message.Load(stream);
var bodyPart = message.HtmlBody ?? message.TextBody;
String body = "";
if (bodyPart != null)
{
body = bodyPart.GetBodyAsText();
}
foreach (MsgReader.Mime.MessagePart attachment in message.Attachments.OfType <MsgReader.Mime.MessagePart>())
{
if (!String.IsNullOrEmpty(attachment.ContentId) &&
body.Contains(attachment.ContentId))
{
if (Logger.IsDebugEnabled)
{
Logger.DebugFormat("Attachment cid {0} name {1} discharded because it is inline", attachment.ContentId, attachment.FileName);
continue;
}
}
String fileName = Path.Combine(unzippingDirectory, attachment.FileName);
File.WriteAllBytes(fileName, attachment.Body);
await AddAttachmentToHandle(
parameters.TenantId,
parameters.JobId,
fileName,
"attachment_email",
attachment.FileName,
new Dictionary <string, object>() { }
);
}
}
}
else if (extension == ".msg")
{
using (var stream = File.Open(localFile, FileMode.Open, FileAccess.Read))
using (var message = new Storage.Message(stream))
{
foreach (Storage.Attachment attachment in message.Attachments.OfType <Storage.Attachment>())
{
if (attachment.IsInline)
{
continue; //no need to uncompress inline attqach
}
String fileName = Path.Combine(unzippingDirectory, attachment.FileName);
File.WriteAllBytes(fileName, attachment.Data);
await AddAttachmentToHandle(
parameters.TenantId,
parameters.JobId,
fileName,
"attachment_email",
attachment.FileName,
new Dictionary <string, object>() { }
);
}
}
}
else if (extension == ".7z" || extension == ".7zip" || extension == ".rar")
{
//we can handle unzipping everything.
var extracted = _sevenZipExtractorFunctions.ExtractTo(localFile, unzippingDirectory);
Int32 uploadCount = await UploadAttachmentListToDocumentStore(parameters, permittedExtension, unzippingDirectory, extracted);
Logger.DebugFormat("Uploaded {0} attachments", uploadCount);
}
return(ProcessResult.Ok);
}
