Passing credentials from ASP.NET website to webservice
- From: Adarsh <Adarsh@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Sun, 2 Jul 2006 21:15:02 -0700
Hi,
I have a problem with passing the default credentials from an ASP.NET web
application residing on 1 web server(IIS) to a web service residing on
another server(IIS). Below is the complete description.
The problem statement for the double hop issue in our product Email Manager
Maintenance (EMM) is as follows:
Description: The current implementation of the EMM is that the EMM web
applications (ASP.NET) are installed on the same web server which has
Microsoft CRM (1.2/3.0) installed. The EMM web applications access the MSCRM
Web services which is part of the MS CRM server setup. This setup works fine
since both the EMM web application and the web service reside on the same IIS
server.
Problem statement: The new implementation of the EMM web application
requires that the application be installed on a separate standard Windows
2000/2003 Server having IIS 6.0.
In such a case, the EMM web application needs to communicate to the MS CRM
web service on another web server. In order to consume the web service, the
web application will pass windows credentials to the web service proxy for
authentication. The credentials to be passed have to be the default
credentials. However, this involves passing credentials across servers from
one IIS server to another IIS server. The main problem lies here as the
credentials need to “hop” across from 1 site to another. The following is the
details of the environment setup for this implementation.
Server A (Domain controller) has the following installed:
1. Windows 2003 Server
2. Microsoft CRM 1.2
3. SQL Server 2000
4. IIS 6.0
5. MSCRMServices running in IIS.
6. Active Directory
7. Exchange Server 2003
Server B (Web server) has the following installed:
1. Windows 2003 Server
2. IIS 6.0 (default website set to integrated windows authentication)
3. EMM web site is installed in this web server
Below is the code where the credentials are being passed to the MSCRM web
service proxy.
using System;
using System.Data;
using System.Net;
using System.Xml;
namespace CrmHelperClass
{
public class CrmHelperClass
{
System.Net.ICredentials userCredentials;
string crmServicesUrl;
private System.Net.ICredentials adminCredentials;
//Constructor
public CrmHelperClass(string crmServiceUrl, string adminUsername, string
adminPwd)
{
try
{
crmServiceUrl = "http://10.200.167.250:80/MSCRMServices";;
adminUsername = encrypObj.Decryptedvalue(adminUsername);
adminPwd=encrypObj.Decryptedvalue(adminPwd);
//Get the admin credentials for MS CRM
adminCredentials=new
System.Net.NetworkCredential(adminUsername,adminPwd,domainname);
//Get the User credentials
userCredentials = System.Net.CredentialCache.DefaultCredentials;
//Get the BizUser CRM proxy object
oBizUser = new Microsoft.CRM.Proxy.BizUser();
oBizUser.Credentials = userCredentials;
oBizUser.Url = crmServicesUrl + CrmHelperConstants.CRMBizUserUrl; //
BizUserUrl = BizUser.srf
//Authenticate the logged in user credentials against the CRM web service
oUserAuth = oBizUser.WhoAmI();
}
catch(System.Web.Services.SoapException err)
{
throw;
}
catch(Exception ex)
{
throw ex;
}
}
}
}
If anybody has a solution to fix the issue, it will be highly appreciated.
Cheers,
Adarsh
.
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