eConnect (impersonation of a user)
Hi!
I have a small problem retreiving a Sales_Transaction in Dynamics GP. If I use the current user (my user, without impersonation) it is working. But if I do an impersonation with my user, it is not working...
Want to know if someone could help me with this!
Have a nice day!!
-Patrick.
Here is my C# code below, and after I put the impersonate class :
***********************************************************************************************************************************
public taSopHdrIvcInsert GetSalesTransaction(string transactionNumber)
{
taSopHdrIvcInsert returnValue = null;
eConnectMethods eConnectObject;
eConnectOut myRequest;
RQeConnectOutType[] eConnectOutType;
eConnectType eConnectDoc;
System.IO.MemoryStream memStream;
System.Xml.Serialization.XmlSerializer serializer;
System.Xml.XmlDocument myDoc;
string salesOrderEntityString;
System.IO.StringReader requestReader;
System.Xml.XmlTextReader xmlTextReader;
string salesorderXml;
System.IO.StringReader salesorderReader;
System.Xml.Serialization.XmlSerializer deSerializer;
try
{
using (Impersonator imp = new Impersonator("MyUserName", "MyDomain", "MyPassword"))
{
//set the requester to retreive a sales order
myRequest = new eConnectOut();
myRequest.DOCTYPE = "Sales_Transaction";
myRequest.OUTPUTTYPE = 1;
myRequest.INDEX1FROM = transactionNumber;
myRequest.INDEX1TO = transactionNumber;
myRequest.FORLIST = 1;
//myRequest.WhereClause = "CUSTNMBR = '" + customerNumber + "'";
//create the eConnect requester XML document object
eConnectOutType = new RQeConnectOutType[1] { new RQeConnectOutType() };
eConnectOutType[0].eConnectOut = myRequest;
eConnectDoc = new eConnectType();
eConnectDoc.RQeConnectOutType = eConnectOutType;
//serialize the object to produce an XML document
memStream = new System.IO.MemoryStream();
serializer = new System.Xml.Serialization.XmlSerializer(typeof(eConnectType));
serializer.Serialize(memStream, eConnectDoc);
memStream.Position = 0;
myDoc = new System.Xml.XmlDocument();
myDoc.Load(memStream);
//get the sales order entity
eConnectObject = new eConnectMethods();
salesOrderEntityString = eConnectObject.GetEntity(_connectionString, myDoc.OuterXml);
//load the xml document string into a StringReader
requestReader = new System.IO.StringReader(salesOrderEntityString);
//use the StringReader to populate an XML text reader
xmlTextReader = new System.Xml.XmlTextReader(requestReader);
//use the XML text reader to find the sales order XML in the eConnect Requester response document
//the eConnect_Out_Setup table shows that the sales order XML data will be enclosed in <SO_Trans> tags
xmlTextReader.ReadToFollowing("SO_Trans");
salesorderXml = xmlTextReader.ReadInnerXml();
salesorderXml = string.Concat("<?xml version=\"1.0\"?><taSopHdrIvcInsert>", salesorderXml, "</taSopHdrIvcInsert>");
salesorderReader = new System.IO.StringReader(salesorderXml);
//deserialize the XML node from the StringReader
deSerializer = new System.Xml.Serialization.XmlSerializer(typeof(taSopHdrIvcInsert));
//cast the deserialized object to a taSopHdrIvcInsert serialization object
returnValue = (taSopHdrIvcInsert)deSerializer.Deserialize(salesorderReader);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error:eConnectEnerkemGP.GetSalesTransaction()", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return returnValue;
}
***********************************************************************************************************************************
namespace MyNameSpace
{
#region Using directives.
// ----------------------------------------------------------------------
using System;
using System.Security.Principal;
using System.Runtime.InteropServices;
using System.ComponentModel;
// ----------------------------------------------------------------------
#endregion
/////////////////////////////////////////////////////////////////////////
/// <summary>
/// Impersonation of a user. Allows to execute code under another
/// user context.
/// Please note that the account that instantiates the Impersonator class
/// needs to have the 'Act as part of operating system' privilege set.
/// </summary>
/// <remarks>
/// This class is based on the information in the Microsoft knowledge base
/// article http://support.microsoft.com/default.aspx?scid=kb;en-us;Q306158
///
/// Encapsulate an instance into a using-directive like e.g.:
///
/// ...
/// using ( new Impersonator( "myUsername", "myDomainname", "myPassword" ) )
/// {
/// ...
/// [code that executes under the new context]
/// ...
/// }
/// ...
///
/// Please contact the author Uwe Keim (mailto:uwe.keim@zeta-software.de)
/// for questions regarding this class.
/// </remarks>
public class Impersonator :
IDisposable
{
#region Public methods.
// ------------------------------------------------------------------
/// <summary>
/// Constructor. Starts the impersonation with the given credentials.
/// Please note that the account that instantiates the Impersonator class
/// needs to have the 'Act as part of operating system' privilege set.
/// </summary>
/// <param name="userName">The name of the user to act as.</param>
/// <param name="domainName">The domain name of the user to act as.</param>
/// <param name="password">The password of the user to act as.</param>
public Impersonator(
string userName,
string domainName,
string password)
{
ImpersonateValidUser(userName, domainName, password);
}
// ------------------------------------------------------------------
#endregion
#region IDisposable member.
// ------------------------------------------------------------------
public void Dispose()
{
UndoImpersonation();
}
// ------------------------------------------------------------------
#endregion
#region P/Invoke.
// ------------------------------------------------------------------
[DllImport("advapi32.dll", SetLastError = true)]
private static extern int LogonUser(
string lpszUserName,
string lpszDomain,
string lpszPassword,
int dwLogonType,
int dwLogonProvider,
ref IntPtr phToken);
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern int DuplicateToken(
IntPtr hToken,
int impersonationLevel,
ref IntPtr hNewToken);
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern bool RevertToSelf();
[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
private static extern bool CloseHandle(
IntPtr handle);
private const int LOGON32_LOGON_INTERACTIVE = 2;
private const int LOGON32_PROVIDER_DEFAULT = 0;
// ------------------------------------------------------------------
#endregion
#region Private member.
// ------------------------------------------------------------------
/// <summary>
/// Does the actual impersonation.
/// </summary>
/// <param name="userName">The name of the user to act as.</param>
/// <param name="domainName">The domain name of the user to act as.</param>
/// <param name="password">The password of the user to act as.</param>
private void ImpersonateValidUser(
string userName,
string domain,
string password)
{
WindowsIdentity tempWindowsIdentity = null;
IntPtr token = IntPtr.Zero;
IntPtr tokenDuplicate = IntPtr.Zero;
try
{
if (RevertToSelf())
{
if (LogonUser(
userName,
domain,
password,
LOGON32_LOGON_INTERACTIVE,
LOGON32_PROVIDER_DEFAULT,
ref token) != 0)
{
if (DuplicateToken(token, 2, ref tokenDuplicate) != 0)
{
tempWindowsIdentity = new WindowsIdentity(tokenDuplicate);
impersonationContext = tempWindowsIdentity.Impersonate();
}
else
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
else
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
else
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
finally
{
if (token != IntPtr.Zero)
{
CloseHandle(token);
}
if (tokenDuplicate != IntPtr.Zero)
{
CloseHandle(tokenDuplicate);
}
}
}
/// <summary>
/// Reverts the impersonation.
/// </summary>
private void UndoImpersonation()
{
if (impersonationContext != null)
{
impersonationContext.Undo();
}
}
private WindowsImpersonationContext impersonationContext = null;
// ------------------------------------------------------------------
#endregion
}
/////////////////////////////////////////////////////////////////////////
}
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