Interfaz IReportServerCredentials

Permite que los objetos proporcionen las credenciales que se usan en la conexión a un servidor de informes.

Espacio de nombres: Microsoft.Reporting.WebForms
Ensamblado: Microsoft.ReportViewer.WebForms (en microsoft.reportviewer.webforms.dll)

Sintaxis

'Declaración
Public Interface IReportServerCredentials
'Uso
Dim instance As IReportServerCredentials

public interface IReportServerCredentials

public interface class IReportServerCredentials

public interface IReportServerCredentials

public interface IReportServerCredentials

Ejemplo

Los siguientes ejemplos de código muestran una implementación de IReportServerCredentials. El código incluye la implementación real, una clase de utilidad que proporciona compatibilidad con las cookies y una página de ejemplo que muestra cómo se llama a la autenticación personalizada.

using System;
using System.Net;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Web.SessionState;
using System.Security.Principal;
using Microsoft.Reporting.WebForms;

public class Demo : Page, IRequiresSessionState
{
    private HtmlGenericControl body;
    private HtmlForm form;
    private ReportViewer reportViewer;

    void Page_Load(object sender, EventArgs e)
    {
        HttpCookie cookie = Request.Cookies["sqlAuthCookie"];
        if (cookie == null)
        {
            Response.Redirect("/logon.aspx?ReturnUrl=" + 
HttpUtility.UrlEncode(Request.RawUrl));
        }
        else
        {
            body.Attributes.Add("style", "margin:0px");
            this.Controls.Add(body);

            body.Controls.Add(form);

            reportViewer.Width = Unit.Percentage(100);
            reportViewer.Height = Unit.Percentage(100);
            reportViewer.ProcessingMode = ProcessingMode.Remote;
            reportViewer.ServerReport.ReportServerUrl = new Uri("http://myhost/reportserver");
            reportViewer.ServerReport.ReportPath = "/MyReport";

            Cookie authCookie = new Cookie(cookie.Name, cookie.Value); 
            authCookie.Domain = "myhost";
            reportViewer.ServerReport.ReportServerCredentials =
            new MyReportServerCredentials(authCookie);

            form.Controls.Add(reportViewer);
        }
    }

    void Page_Init(object sender, EventArgs e)
    {
        form = new HtmlForm();
        body = new HtmlGenericControl("body");
        reportViewer = new ReportViewer();
    }
}

class MyReportServerCredentials : IReportServerCredentials
{
    private Cookie m_authCookie;

    public MyReportServerCredentials(Cookie authCookie)
    {
        m_authCookie = authCookie;
    }

    public WindowsIdentity ImpersonationUser
    {
        get
        {
            return null;  // Use default identity.
        }
    }

    public ICredentials NetworkCredentials
    {
        get
        {
            return null;  // Not using NetworkCredentials to 
authenticate.
        }
    }
 
    public bool GetFormsCredentials(out Cookie authCookie,
        out string user, out string password, out string authority)
    {
        authCookie = m_authCookie;
        user = password = authority = null;
        return true;  // Use forms credentials to authenticate.
    }
}

En el código siguiente, se crean subclases del servicio Web ReportExecutionService a fin de proporcionar una cookie de autenticación.

using System;
using System.Net;

// Subclass ReportExecutionService is used in order to extract an
// authenticated cookie from WebResponse.
public class MyReportingService : ReportExecutionService
{
    private Cookie m_authCookie;

    public Cookie AuthCookie
    {
        get
        {
            return m_authCookie;
        }
    }

    protected override WebRequest GetWebRequest(Uri uri)
    {
        HttpWebRequest request = 
(HttpWebRequest)HttpWebRequest.Create(uri);
        request.Credentials = base.Credentials;
        request.CookieContainer = new CookieContainer();
        if (m_authCookie != null)
            request.CookieContainer.Add(m_authCookie);
        return request;
    }

    protected override WebResponse GetWebResponse(WebRequest request)
    {
        WebResponse response = base.GetWebResponse(request);
        string cookieName = response.Headers["RSAuthenticationHeader"];
        if (cookieName != null)
        {
            HttpWebResponse webResponse = (HttpWebResponse)response;
            m_authCookie = webResponse.Cookies[cookieName];
        }
        return response;
    }
}

El siguiente código muestra cómo usar la autenticación personalizada.

<%@ Page Language="C#" Debug="true" AutoEventWireup="True" %>
<%@ Import Namespace="System.Net" %>

<html>
<head>
   <script runat="server">

      void LogonBtn_Click(Object sender, EventArgs e) 
      {
         Message.Text = "";
         MyReportingService svc = new MyReportingService();
         svc.Url = "http://myhost/reportserver/reportexecution2005.asmx";
         try
         {
            svc.LogonUser(Username.Text, Password.Text, null);
            Cookie myAuthCookie = svc.AuthCookie;
            if (myAuthCookie == null)
            {
               Message.Text = "Logon failed";
            }
            else
            {
               HttpCookie cookie = new HttpCookie(myAuthCookie.Name, 
myAuthCookie.Value); 
               Response.Cookies.Add(cookie);
               string returnUrl = Request.QueryString["ReturnUrl"];
               if (returnUrl == null || !returnUrl.StartsWith("/"))
                  Message.Text = "Return url is missing or invalid!";
               else
                  Response.Redirect(HttpUtility.UrlDecode(returnUrl)); 
            }
         }
         catch (Exception ex)
         {
            Message.Text = "Logon failed: " + ex.Message;
         }
      }

   </script>
</head>
<body>
  <form id="form1" runat="server">
    <asp:label id="Message" runat="server"/>
    <table>
      <tr>
        <td><asp:Label ID="Label1" runat="server" Text="User 
Name:"/></td>
        <td><asp:TextBox ID="Username" runat="server"/></td>
      </tr>
      <tr>
        <td><asp:Label ID="Label2" runat="server" 
Text="Password:"/></td>
        <td><asp:TextBox ID="Password" runat="server"/></td>
      </tr>
    </table>
    <asp:Button ID="Button1" runat="server" Text="Logon" 
OnClick="LogonBtn_Click" />
  </form>
</body>
</html>

Consulte también

Referencia

Miembros IReportServerCredentials
Espacio de nombres Microsoft.Reporting.WebForms