Re: System.IO.Directoryinfo throwing exception

Tech Tip: Click here to run a free scan for Windows Errors and optimize PC performance

glad your sorted :)

--
Regards

John Timney
ASP.NET MVP
Microsoft Regional Director

"Glenn Venzke" <GlennVenzke@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:CCC31167-8012-4FC7-9EC7-3F125F515339@xxxxxxxxxxxxxxxx
> Problem solved! All I had to do was set "identity impersonate" to "true"
> in
> my web.config. Thank you so much!
>
> "John Timney (ASP.NET MVP)" wrote:
>
>> Another MVP has written a great article about this
>> http://west-wind.com/weblog/posts/1572.aspx
>>
>> The crux is (and its a pain to get working) that using Anonymous
>> authentication (so no impersonation) the local ASPNET account has to have
>> the same credentials (username and password) on both machines in order to
>> delegate security. With basic authentication and impersonation you need
>> to
>> use a domain account which can delegate and you can check how to mark
>> your
>> impersonated account able to use security delegation here:
>> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetsec/html/SecNetHT05.asp.
>> This is also required if you want to use NTLM authentication over
>> kerberos
>>
>> Personally, I would implement a the remote server as an http device and
>> use
>> http requests, checking the referrer whihc makes life a lot simpler than
>> using mapped network drives.
>> --
>> Regards
>>
>> John Timney
>> ASP.NET MVP
>> Microsoft Regional Director
>>
>> "Glenn Venzke" <GlennVenzke@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>> news:9B4BC708-162A-4C50-8AF1-85D829D5E579@xxxxxxxxxxxxxxxx
>> >I have an aspx page that is set up to copy backed-up DB files from a
>> >shared
>> > directory to a local folder. For some reason, it is being denied access
>> > to
>> > the network share. I have the web app running under a domain account
>> > that
>> > I
>> > know for a fact has access. it works fine when I log on to the network
>> > and
>> > browse the directory manually. Even when I grant full control to
>> > everyone
>> > on
>> > the share and the underlying folder itself, I still can't access it
>> > through
>> > code. The funny thing is though, this same code works fine when
>> > executed
>> > within a windows service which runs under the same domain account.
>> > Help!
>> >
>> > Code follows:
>> >
>> > **** this first line is the one throwing the exception ********
>> > Dim objFromDirectory As DirectoryInfo = New
>> > DirectoryInfo("\\[server]\[network share]
>> >
>> >
>> > Dim strNewBackupPath As String = "C:\SQLBackUp\Data"
>> > Dim objToDirectory As DirectoryInfo = New
>> > DirectoryInfo(strNewBackupPath)
>> > Dim objOldBackupFiles() As FileInfo =
>> > objToDirectory.GetFiles()
>> > Dim objNewBackupFiles() As FileInfo =
>> > objFromDirectory.GetFiles()
>> > Dim x As Integer
>> > Dim intNewBackupFileCount As Integer =
>> > UBound(objNewBackupFiles)
>> > Dim objCurrentFile As FileInfo
>> > Dim objBackUpLog As XmlDocument = New XmlDocument
>> > Dim objNewParentNode As XmlElement
>> > Dim objRootNode As XmlElement
>> > Dim objLogEntryDateNode As XmlElement
>> > Dim objNewChildNode As XmlElement
>> > Dim objDateNodeList As XmlNodeList
>> > Dim strStartTime As String
>> > Dim strEndTime As String
>> > Dim intFileSize As Integer = 0
>> > Dim intLogEntryCount As Integer
>> > Dim strBackUpLogPath As String =
>> > "C:\SQLBackUp\SQLBackupLog.xml"
>> > Dim objCurrentDateNode As XmlElement
>> > Try
>> > strStartTime = DateTime.Now.ToLongTimeString()
>> >
>> > '-- delete old set of backups. GV 1/28/05
>> > If UBound(objOldBackupFiles) > 0 Then
>> > For x = 0 To UBound(objOldBackupFiles)
>> > File.Delete(objOldBackupFiles(x).FullName)
>> > Next
>> > End If
>> >
>> > '-- copy new set of backups. GV 1/28/05
>> >
>> > '- if no backup files are found, throw an exception.
>> > GV
>> > 6/2/05
>> > If intNewBackupFileCount < 1 Then
>> > Throw New ApplicationException("No files were
>> > found.")
>> >
>> > Else
>> > For x = 0 To intNewBackupFileCount
>> > objCurrentFile = objNewBackupFiles(x)
>> > intFileSize = intFileSize +
>> > objCurrentFile.Length
>> > objCurrentFile.CopyTo(strNewBackupPath & "\"
>> > &
>> > objCurrentFile.Name)
>> > Next
>> > End If
>> >
>> > strEndTime = DateTime.Now.ToLongTimeString()
>> >
>> > '-- write file-copy info to XML log. GV 1/28/05
>> > objBackUpLog.Load(strBackUpLogPath)
>> > objNewParentNode =
>> > objBackUpLog.CreateElement("logentry")
>> >
>> > objBackUpLog.DocumentElement.AppendChild(objNewParentNode)
>> >
>> > ' current date
>> > objNewChildNode = objBackUpLog.CreateElement("date")
>> > objNewChildNode.InnerText =
>> > DateTime.Now.ToShortDateString()
>> > objNewParentNode.AppendChild(objNewChildNode)
>> >
>> > ' time started
>> > objNewChildNode =
>> > objBackUpLog.CreateElement("starttime")
>> > objNewChildNode.InnerText = strStartTime
>> > objNewParentNode.AppendChild(objNewChildNode)
>> >
>> > ' time ended
>> > objNewChildNode =
>> > objBackUpLog.CreateElement("endtime")
>> > objNewChildNode.InnerText = strEndTime
>> > objNewParentNode.AppendChild(objNewChildNode)
>> >
>> > ' total amount copied (in megs)
>> > objNewChildNode =
>> > objBackUpLog.CreateElement("dataamount")
>> > objNewChildNode.InnerText =
>> > CStr(Math.Round(intFileSize
>> > / 1048576, 2) & " Mb")
>> > objNewParentNode.AppendChild(objNewChildNode)
>> >
>> > ' total number of files copied
>> > objNewChildNode =
>> > objBackUpLog.CreateElement("nbroffiles")
>> > objNewChildNode.InnerText =
>> > CStr(intNewBackupFileCount
>> > +
>> > 1)
>> > objNewParentNode.AppendChild(objNewChildNode)
>> >
>> > '--- delete entries older than 4 months. GV 1/31/05
>> > objDateNodeList =
>> > objBackUpLog.SelectNodes("/log/logentry/date")
>> > For Each objCurrentDateNode In objDateNodeList
>> > If DateValue(CDate(objCurrentDateNode.InnerXml))
>> > <
>> > DateValue(DateAdd("d", -120, DateTime.Now)) Then
>> > objCurrentDateNode.RemoveAll()
>> > objRootNode =
>> > objCurrentDateNode.ParentNode.ParentNode
>> >
>> > objRootNode.RemoveChild(objCurrentDateNode.ParentNode)
>> > End If
>> > Next
>> >
>> > '--- save changes. GV 1/31/05
>> > objBackUpLog.Save(strBackUpLogPath)
>> > intOperationSuccess = 1
>> > Catch exc As Exception
>> > '--- if exception occurs, write error info to XML
>> > log.
>> > GV 1/28/05
>> > objBackUpLog.Load(strBackUpLogPath)
>> > objNewParentNode =
>> > objBackUpLog.CreateElement("logentry")
>> >
>> > objBackUpLog.DocumentElement.AppendChild(objNewParentNode)
>> >
>> > ' current date
>> > objNewChildNode = objBackUpLog.CreateElement("date")
>> > objNewChildNode.InnerText =
>> > DateTime.Now.ToShortDateString()
>> > objNewParentNode.AppendChild(objNewChildNode)
>> >
>> > ' error header
>> > objNewChildNode =
>> > objBackUpLog.CreateElement("errorheader")
>> > objNewChildNode.InnerText = "** ERROR **"
>> > objNewParentNode.AppendChild(objNewChildNode)
>> >
>> > ' error description
>> > objNewChildNode =
>> > objBackUpLog.CreateElement("errordescription")
>> > objNewChildNode.InnerText = exc.Message.ToString
>> > objNewParentNode.AppendChild(objNewChildNode)
>> > objBackUpLog.Save(strBackUpLogPath)
>> > objEventLog.WriteEntry("**** ERROR **** " &
>> > exc.Message.ToString() & " occurred on " & DateTime.Now & ".")
>> > intOperationSuccess = 0
>> > '---
>> > Finally
>> > '--- destroy all objects. GV 1/28/05
>> > x = Nothing
>> > intFileSize = Nothing
>> > intLogEntryCount = Nothing
>> > If Not (objBackUpLog Is Nothing) Then objBackUpLog =
>> > Nothing
>> > If Not (objCurrentFile Is Nothing) Then
>> > objCurrentFile
>> > =
>> > Nothing
>> > intNewBackupFileCount = Nothing
>> > If Not (objNewBackupFiles Is Nothing) Then
>> > objNewBackupFiles = Nothing
>> > If Not (objOldBackupFiles Is Nothing) Then
>> > objOldBackupFiles = Nothing
>> > If Not (objToDirectory Is Nothing) Then
>> > objToDirectory
>> > =
>> > Nothing
>> > If Not (strNewBackupPath Is Nothing) Then
>> > strNewBackupPath = Nothing
>> > If Not (objFromDirectory Is Nothing) Then
>> > objFromDirectory = Nothing
>> > If Not (strStartTime Is Nothing) Then strStartTime =
>> > Nothing
>> > If Not (strEndTime Is Nothing) Then strEndTime =
>> > Nothing
>> > If Not (objRootNode Is Nothing) Then objRootNode =
>> > Nothing
>> > If Not (objNewParentNode Is Nothing) Then
>> > objNewParentNode = Nothing
>> > If Not (objNewChildNode Is Nothing) Then
>> > objNewChildNode
>> > = Nothing
>> > If Not (objDateNodeList Is Nothing) Then
>> > objDateNodeList
>> > = Nothing
>> > If Not (objCurrentDateNode Is Nothing) Then
>> > objCurrentDateNode = Nothing
>> > If Not (objLogEntryDateNode Is Nothing) Then
>> > objLogEntryDateNode = Nothing
>> > If Not (strBackUpLogPath Is Nothing) Then
>> > strBackUpLogPath = Nothing
>> > '---
>> > End Try
>> >
>>
>>
>>


.

Relevant Pages