Fix filesystem refs

Interfaces/ZUGFeRDInterface/PDFEmbeds.vb

@@ -1,5 +1,7 @@
 Imports System.Collections.Generic
 Imports System.IO
+Imports System.Reflection
+Imports System.Runtime.Remoting.Messaging
 Imports DigitalData.Modules.Logging
 Imports GdPicture14
 
@@ -91,6 +93,64 @@ Public Class PDFEmbeds
         End Try
     End Function
 
+    Public Function RemoveEmbeddedFiles(pFilePath As String) As Boolean
+        Dim oFile As New List(Of EmbeddedFile)
+        Dim oFileInfo As FileInfo
+
+        Logger.Debug("Removing embedded files from [{0}]", pFilePath)
+
+        Try
+            oFileInfo = New FileInfo(pFilePath)
+
+            Logger.Debug("Filename: {0}", oFileInfo.Name)
+            Logger.Debug("Filesize: {0} bytes", oFileInfo.Length)
+            Logger.Debug("Exists: {0}", oFileInfo.Exists)
+        Catch ex As Exception
+            Logger.Warn("File information for [{0}] could not be read!", pFilePath)
+            Logger.Error(ex)
+        End Try
+
+        Try
+            Using oGDPicturePDF As New GdPicturePDF()
+                If oGDPicturePDF.LoadFromFile(pFilePath, False) <> GdPictureStatus.OK Then
+                    Dim oMessage = String.Format("The file [{0}] can't be loaded. Status: [{1}]", pFilePath, oGDPicturePDF.GetStat().ToString())
+                    Throw New ApplicationException(oMessage)
+                End If
+
+                If DoRemove(oGDPicturePDF) = False Then
+                    Dim oMessage = String.Format("Attachments for file [{0}] can't be removed. Status: [{1}]", pFilePath, oGDPicturePDF.GetStat().ToString())
+                    Throw New ApplicationException(oMessage)
+                End If
+            End Using
+
+            Return True
+        Catch ex As Exception
+            Logger.Warn("Unexpected Error while Extracting attachments from File [{0}]", pFilePath)
+            Logger.Error(ex)
+            Return False
+        End Try
+    End Function
+
+    Private Function DoRemove(GDPicturePDF As GdPicturePDF) As Boolean
+        Dim oStatus As GdPictureStatus
+
+        Dim oEmbeddedFileCount As Integer = GDPicturePDF.GetEmbeddedFileCount()
+
+        If oStatus <> GdPictureStatus.OK Then
+            Logger.Warn("Embedded files could not be removed. Status: [{0}]", oStatus.ToString)
+            Return False
+        End If
+
+        If oEmbeddedFileCount = 0 Then
+            Return True
+        End If
+
+        While GDPicturePDF.GetEmbeddedFileCount() > 0
+            GDPicturePDF.DeleteEmbeddedFile(0)
+        End While
+
+    End Function
+
     Private Function DoExtract(GDPicturePDF As GdPicturePDF, pExtensions As List(Of String)) As List(Of EmbeddedFile)
         Dim oResults As New List(Of EmbeddedFile)
         Dim oEmbeddedFileCount As Integer = GDPicturePDF.GetEmbeddedFileCount()