Filesystem: Add GetCleanFilename and GetCleanPath

Modules.Filesystem/File.vb

@@ -1,4 +1,5 @@
 Imports System.IO
+Imports System.Text.RegularExpressions
 Imports DigitalData.Modules.Logging
 
 ''' <module>File</module>
@@ -24,13 +25,46 @@ Public Class File
     Private ReadOnly _logger As Logger
     Private ReadOnly _logConfig As LogConfig
 
+    Private ReadOnly _invalidFilenameChars As String
+    Private ReadOnly _invalidPathChars As String
+
+    Private Const REGEX_CLEAN_FILENAME As String = "[\\/:""<>|\b\0\r\n\t]"
+    Private Const REGEX_CLEAN_PATH As String = "[:""<>|\b\0\r\n\t]"
+
     Private Const FILE_NAME_ACCESS_TEST = "accessTest.txt"
 
     Public Sub New(LogConfig As LogConfig)
         _logConfig = LogConfig
         _logger = LogConfig.GetLogger()
+
+        _invalidFilenameChars = String.Join("", Path.GetInvalidFileNameChars())
+        _invalidPathChars = String.Join("", Path.GetInvalidPathChars())
     End Sub
 
+    Public Function GetCleanFilename(FileName As String) As String
+        _logger.Debug("Filename before cleaning: [{0}]", FileName)
+
+        Dim oCleanName As String = FileName
+        oCleanName = Regex.Replace(oCleanName, _invalidFilenameChars, String.Empty)
+        oCleanName = Regex.Replace(oCleanName, REGEX_CLEAN_FILENAME, String.Empty, RegexOptions.Singleline)
+
+        _logger.Debug("Filename after cleaning: [{0}]", oCleanName)
+
+        Return oCleanName
+    End Function
+
+    Public Function GetCleanPath(FilePath As String) As String
+        _logger.Debug("Path before cleaning: [{0}]", FilePath)
+
+        Dim oCleanName As String = FilePath
+        oCleanName = Regex.Replace(oCleanName, _invalidPathChars, String.Empty)
+        oCleanName = Regex.Replace(oCleanName, REGEX_CLEAN_FILENAME, String.Empty, RegexOptions.Singleline)
+
+        _logger.Debug("Path after cleaning: [{0}]", oCleanName)
+
+        Return oCleanName
+    End Function
+
     ''' <summary>
     ''' Adds fileversions to given filename `Destination` if that file already exists.
     ''' </summary>