Access network share from ASP.NET
Yuriy Galanter
I need to access a file on a network share from an ASP.NET application
(using methods like file.readalltext). Of course ASP.NET doesn't have access
to that share. But I do have both UserID and password of a user who does
have access. How do I use them to supply credentials for file.readalltext
method (similar how I can do that for WebClient with NetworkCredentials)?
Thanks!
Yuriy.
sloan
Quickest way is impersonation with asp.net.
Inside of
<system.web>
<authentication mode="Windows" />
<identity impersonate="true" userName="mycompany\myname" password="mypwd"
/>
</system.web>
That should give you something to search on.
"Yuriy Galanter" <yu...@galanter.net> wrote in message
news:eq0HNgug...@TK2MSFTNGP05.phx.gbl...
George Ter-Saakov
#region WIN API Declarations
//used in calling WNetAddConnection2
[StructLayout(LayoutKind.Sequential)]
public struct NETRESOURCE
{
public int dwScope;
public int dwType;
public int dwDisplayType;
public int dwUsage;
[MarshalAs(UnmanagedType.LPStr)]
public string lpLocalName;
[MarshalAs(UnmanagedType.LPStr)]
public string lpRemoteName;
[MarshalAs(UnmanagedType.LPStr)]
public string lpComment;
[MarshalAs(UnmanagedType.LPStr)]
public string lpProvider;
}
//WIN32API - WNetAddConnection2
[DllImport("mpr.dll",
CharSet = System.Runtime.InteropServices.CharSet.Auto)]
private static extern int WNetAddConnection2A(
[MarshalAs(UnmanagedType.LPArray)] NETRESOURCE[] lpNetResource,
[MarshalAs(UnmanagedType.LPStr)] string lpPassword,
[MarshalAs(UnmanagedType.LPStr)] string lpUserName,
int dwFlags);
[DllImport("mpr.dll",
CharSet = System.Runtime.InteropServices.CharSet.Auto)]
private static extern int WNetCancelConnection2A(
[MarshalAs(UnmanagedType.LPStr)] string lpName,
int dwFlags, int fForce);
#endregion
private byte[] GetFSMSFile(string sFile)
{
NETRESOURCE[] nr = new NETRESOURCE[1];
nr[0].lpRemoteName = _sFSMSShare;
nr[0].lpLocalName = ""; //mLocalName;
nr[0].dwType = 1; //disk
nr[0].dwDisplayType = 0;
nr[0].dwScope = 0;
nr[0].dwUsage = 0;
nr[0].lpComment = "";
nr[0].lpProvider = "";
int iErr = WNetAddConnection2A(nr, _sFSMSShareUserPassword, _sFSMSShareUser,
0);
if (iErr > 0)
throw new Exception("Can not connect to FSMS share folder");
FileStream st = null;
try
{
st = new FileStream(_sFSMSShare + "\\" + sFile, FileMode.Open);
int iLen = (int)st.Length;
byte []b = new byte[iLen];
st.Read(b, 0, iLen);
return b;
}
finally
{
if( st != null )
st.Close();
WNetCancelConnection2A(_sFSMSShare, 0, -1);
}
}
"Yuriy Galanter" <yu...@galanter.net> wrote in message
news:eq0HNgug...@TK2MSFTNGP05.phx.gbl...
Yuriy Galanter
Great group!
Yuriy.
lib...@gmail.com
> Great group!
>
> Yuriy.