Re: Problem with uploading Image files.

From: IkBenHet (ikbenhet79_at_hotmail.com)
Date: 05/28/05

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    Date: 28 May 2005 05:13:20 -0700

    Is there really nobody who can assist me on this? I can not find any
    information on it issue.
    In short: I can post images with FTP and the uploadform to the same
    folder that has WRITE rights assigned. But when I want to VIEW the
    images I can only see the images posted via FTP without being prompted
    for a userid and password.

    I think that it must have something to do with the ASP.NET account on
    that folder. The problem with that is that I only can control the
    permission via a webbased admin tool that the provider have made
    available for me. The only options are WRITE and READ, without being
    able to specify an account name. Or I need a confirmation from this so
    I can instruct the provider to assign the correct rights to the folder
    or I need a workaround that is still secure.

    Thanks!

    IkBenHet schreef:
    > Hello,
    >
    > I use this script to upload image files to a folder on a IIS6 server:
    >
    > ******************* START UPLOAD.ASPX FILE **********************
    >
    > <%@ Page Language="VB" Debug="true" %>
    > <%@ Import Namespace="System.IO" %>
    >
    > <script runat="server">
    >
    > Sub SubmitButton_Click(Source As Object, e As EventArgs)
    > If Not (oFile.PostedFile Is Nothing) Then
    > Try
    > 'Declare variables
    > Dim strFileName As String
    > Dim strFilePath As String
    > Dim strFolder As String
    > Dim strPicType As String
    > Dim strPicSize As String
    >
    >
    > 'Set Upload Folder
    > strFolder = "D:\Inetpub\wwwroot\upload\"
    >
    > 'Get the name of the file that is posted
    > strFileName = oFile.PostedFile.FileName
    > strFileName = Path.GetFileName(strFileName)
    > strFilePath = strFolder & strFileName
    >
    > 'Validate that it is an image file
    > strPicType = oFile.PostedFile.ContentType
    > strPicSize = oFile.PostedFile.ContentLength
    >
    > If (strPicType="image/jpeg" or strPicType="image/gif" or
    > strPicType="image/pjpeg" or strPicType="image/bmp") then
    > 'Save file
    > oFile.PostedFile.SaveAs(strFilePath)
    > Span.InnerHtml = "De afbeelding werd succesvol
    > bewaard!<BR><IMG SRC='http://www.a-random-website.com/upload/" &
    > strFileName & "'><BR>" & strPicSize & "."
    > Else
    > Span.InnerHtml = "De afbeelding is niet van het formaat GIF, JPG,
    > JPEG of BMP!"
    > End If
    > Catch ex As Exception
    > Span.InnerHtml = "Er is een fout opgetreden bij het
    > bewaren van de afbeelding. Probeer het eens opnieuw."
    > End Try
    > End If
    > End Sub
    >
    > </script>
    >
    > <html>
    > <head>
    > <title>Title</title>
    > </head>
    > <body>
    > <FONT FACE="Trebuchet MS, Arial, Helvetica, Verdana" SIZE="2"
    > COLOR="#4E69B0">
    > <form runat="server" enctype="multipart/form-data">
    > Selecteer de afbeelding die je wenst toe te voegen:<br />
    > <input type="file" id="oFile" runat="Server"><br/>
    > <input type="submit" id="Submit" runat="Server"
    > value="Upload File" OnServerClick="SubmitButton_Click">
    > <p>
    > <span id="Span" runat="Server" />
    > </form>
    > </FONT>
    > </body>
    > </html>
    > ******************* END UPLOAD.ASPX FILE **********************
    >
    > The folder where the images are uploaded to is called upload and
    > located in the wwwroot folder (D:\Inetpub\wwwroot\upload\). I assigned
    > write permission to it to be able to save file via script.
    > This script is working and the file is uploaded correctly. But when I
    > then want to view the uploaded image using the webbrowser, I am
    > prompted to logon using windows security.
    > When I upload an image to the same upload folder
    > (D:\Inetpub\wwwroot\upload\) using FTP then I can see the image without
    > being prompted to logon. It seems that it has nothing to do with the
    > security on the folder, but with the security set on the saved file
    > using the ASP.NET script.
    >
    > Who can help me out? What is wrong, do I use a wrong method or can I
    > set security on the saved file?
    >
    > Already thanks for your help!

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