IIS Security for Printing

[Brian]

Hi,

We have an asp.net 2 application that prints a file (integrated security and
impersonation is configured
for the application). The application is a non-windows version of:
http://msdn2.microsoft.com/en-us/library/system.drawing.printing.printdocument.aspx

It all works fine on IIS 5 (XP) and 6 (2k3) when printing to a local printer
defined on the IIS server. However when setting the printer to a network
printer the IIS server fails when accessing the web site from a remote
computer (that is, it works when accessing the pages on the IIS computer but
not from another computer).

Does anyone have any ideas of the security settings necessary to enable
network printer access?

Brian

EVENT - SYSTEM
--------------------------------------------------------------------------------------------------
Event Type: Warning
Event Source: Print
Event Category: None
Event ID: 20
Date: 8/02/2007
Time: 1:15:14 PM
User: NT AUTHORITY\SYSTEM
Computer: computer
Description:
Printer Driver FX ApeosPort-II C4300 PCL 6 for Windows NT x86 Version-3 was
added or updated. Files:- fx6raeim.dll, fx6raeiu.dll, fx6rae.ddd,
fx6rae.hlp, fx6rajdm.dll, fx6raeir.xrs, fx6raex.dll, fx6raex.exe,
fxzddmif.dll, fxzdhb32.dll, fxzpmc3.dll, fxzadcmn.dll, fxzarl32.dll,
fxz430a3.dll, fxlzjnie.dll, fxlznie1.dll, fx6rae.cfg, fx6rae.tbl,
fx6rae.cnt, fx6rae.xrs, fx6rae.cdd, fx6rbe.ddd, fx6rce.ddd, fx6rde.ddd,
fx6ree.ddd, fx6rfe.ddd.

EVENT - APPLICATION
--------------------------------------------------------------------------------------------------
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 8/02/2007 1:15:16 PM
Event time (UTC): 8/02/2007 3:15:16 AM
Event ID: 4ae3a3b1b39c4ff1b5734af3590eb19e
Event sequence: 105
Event occurrence: 6
Event detail code: 0


Application information:
Application domain: /LM/W3SVC/1/Root/BatchPrint-1-128153695175334014
Trust level: Full
Application Virtual Path: /BatchPrint
Application Path: C:\Data\Reports\Web\BatchPrint\
Machine name: DELL-29

Process information:
Process ID: 3424
Process name: aspnet_wp.exe
Account name: DELL-29\ASPNET

Exception information:
Exception type: InvalidPrinterException
Exception message: Settings to access printer '\\server\printer' are not
valid.

Request information:
Request URL: http://dell-29/batchprint/test.aspx
Request path: /batchprint/test.aspx
User host address: 192.168.1.17
User: domain\user
Is authenticated: True
Authentication Type: Negotiate
Thread account name: DELL-29\ASPNET

Thread information:
Thread ID: 5
Thread account name: DELL-29\ASPNET
Is impersonating: False

Stack trace:
at System.Drawing.Printing.PrinterSettings.GetHdevmodeInternal()
at System.Drawing.Printing.PrinterSettings.GetHdevmode(PageSettings
pageSettings)
at System.Drawing.Printing.PrintController.OnStartPrint(PrintDocument
document, PrintEventArgs e)
at
System.Windows.Forms.PrintControllerWithStatusDialog.OnStartPrint(PrintDocument
document, PrintEventArgs e)
at System.Drawing.Printing.PrintController.Print(PrintDocument document)
at System.Drawing.Printing.PrintDocument.Print()
at PrintingExample.Print() in
c:\Data\Reports\Web\BatchPrint\Test.aspx.cs:line 45
at Test.Page_Load(Object sender, EventArgs e) in
c:\Data\Reports\Web\BatchPrint\Test.aspx.cs:line 20
at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o,
Object t, EventArgs e)
at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender,
EventArgs e)
at System.Web.UI.Control.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

 

[nic.whittaker]

Hi Brian,

Did you ever resolve this issue? I've got exactly the same problem...!

 

[prabakaran subramanian]

Hi Brain,

I am trying to print a document from asp.net which is hosted in IIS. When i print a document from asp.net application, i can able to print to the network printer. But, if i try to print the same from IIS, It hits the printer but it doesn't print

Our network printer is Password protected. I believe when i call the printer from IIS, some security options is added and i doesn't print.

I need a some sample to print document from IIS. Actually i'm very new to this.

Thanks for yor help.

Regards,
Prabakaran



Posted as a reply to:

IIS Security for Printing

Hi

We have an asp.net 2 application that prints a file (integrated security and
impersonation is configure
for the application). The application is a non-windows version of
http://msdn2.microsoft.com/en-us/library/system.drawing.printing.printdocument.asp

It all works fine on IIS 5 (XP) and 6 (2k3) when printing to a local printe
defined on the IIS server. However when setting the printer to a networ
printer the IIS server fails when accessing the web site from a remot
computer (that is, it works when accessing the pages on the IIS computer bu
not from another computer)

Does anyone have any ideas of the security settings necessary to enabl
network printer access

Bria

EVENT - SYSTE
-------------------------------------------------------------------------------------------------
Event Type: Warnin
Event Source: Prin
Event Category: Non
Event ID: 2
Date: 8/02/200
Time: 1:15:14 P
User: NT AUTHORITY\SYSTE
Computer: compute
Description
Printer Driver FX ApeosPort-II C4300 PCL 6 for Windows NT x86 Version-3 wa
added or updated. Files:- fx6raeim.dll, fx6raeiu.dll, fx6rae.ddd
fx6rae.hlp, fx6rajdm.dll, fx6raeir.xrs, fx6raex.dll, fx6raex.exe
fxzddmif.dll, fxzdhb32.dll, fxzpmc3.dll, fxzadcmn.dll, fxzarl32.dll
fxz430a3.dll, fxlzjnie.dll, fxlznie1.dll, fx6rae.cfg, fx6rae.tbl
fx6rae.cnt, fx6rae.xrs, fx6rae.cdd, fx6rbe.ddd, fx6rce.ddd, fx6rde.ddd
fx6ree.ddd, fx6rfe.ddd

EVENT - APPLICATIO
-------------------------------------------------------------------------------------------------
Event code: 300
Event message: An unhandled exception has occurred
Event time: 8/02/2007 1:15:16 P
Event time (UTC): 8/02/2007 3:15:16 A
Event ID: 4ae3a3b1b39c4ff1b5734af3590eb19
Event sequence: 10
Event occurrence:
Event detail code:

Application information
Application domain: /LM/W3SVC/1/Root/BatchPrint-1-12815369517533401
Trust level: Ful
Application Virtual Path: /BatchPrin
Application Path: C:\Data\Reports\Web\BatchPrint
Machine name: DELL-2

Process information
Process ID: 342
Process name: aspnet_wp.ex
Account name: DELL-29\ASPNE

Exception information
Exception type: InvalidPrinterExceptio
Exception message: Settings to access printer '\\server\printer' are not
valid

Request information
Request URL: http://dell-29/batchprint/test.asp
Request path: /batchprint/test.asp
User host address: 192.168.1.1
User: domain\use
Is authenticated: Tru
Authentication Type: Negotiat
Thread account name: DELL-29\ASPNE

Thread information
Thread ID:
Thread account name: DELL-29\ASPNE
Is impersonating: Fals

Stack trace
at System.Drawing.Printing.PrinterSettings.GetHdevmodeInternal(
at System.Drawing.Printing.PrinterSettings.GetHdevmode(PageSettings
pageSettings
at System.Drawing.Printing.PrintController.OnStartPrint(PrintDocument
document, PrintEventArgs e
at
System.Windows.Forms.PrintControllerWithStatusDialog.OnStartPrint(PrintDocument
document, PrintEventArgs e
at System.Drawing.Printing.PrintController.Print(PrintDocument document
at System.Drawing.Printing.PrintDocument.Print(
at PrintingExample.Print() in
c:\Data\Reports\Web\BatchPrint\Test.aspx.cs:line 4
at Test.Page_Load(Object sender, EventArgs e) in
c:\Data\Reports\Web\BatchPrint\Test.aspx.cs:line 2
at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o,
Object t, EventArgs e
at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender,
EventArgs e
at System.Web.UI.Control.OnLoad(EventArgs e
at System.Web.UI.Control.LoadRecursive(
at System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

EggHeadCafe - Software Developer Portal of Choice
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[Brian Taylor]

Hi Prabakaran,
The printer needed to be local on the IIS server even if the port is an IP address and is referred to by name (string). Below is the printing code for your information - not all is applicable.
Regards,
Brian

using System;
using System.Data;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Drawing;
using System.Configuration;
using System.Collections;
using System.Security.Principal;
using System.Threading;
using System.Web;
using System.Web.Security;
using System.Web.Services;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using BatchPrintUtility;

//[assembly: System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.RequestMinimum, Unrestricted=true)]
//[AspNetHostingPermission(System.Security.Permissions.SecurityAction.Demand, Level=AspNetHostingPermissionLevel.Unrestricted)]
public partial class Execute : System.Web.UI.Page
{
Thread printReports = null;

protected void Page_Load(object sender, EventArgs e)
{
// check for valid page parameters
bool ok = Request.QueryString["BatchId"] != null && Request.QueryString["printer"] != null;
pnlForm.Visible = ok;
pnlError.Visible = !ok;
cvBatchId.IsValid = ok;
if (!ok)
return;

// print the batch in a new background thread so that we can monitor the status
if (!IsPostBack)
{
Session["Printing"] = "Start"; // initialise the session on the main thread so that it can be accessed in the printing thread
lblResults.Text = "Printing Status" + " - " + (Session["Printing"] == null ? "null" : Session["Printing"]) + ", " + (printReports == null ? "null" : printReports.IsAlive.ToString());
Session["Results"] = null;
tmrResults.Enabled = true;
printReports = new Thread(new ParameterizedThreadStart(PrintReportBatch));
Session["Printing"] = "Starting";
printReports.Start(Request.QueryString["printer"]);
Session["Printing"] = "Started";
//PrintReportBatch(Request.QueryString["printer"]);
}
}

/// <summary>
/// Print the report batch by:
/// 1. Open the specified batch in the database
/// 2. Get the next report from the batch
/// 3. Stream the report from the server and print the report
/// 4. Return the status on the print operation (in colour to the web page using AJAX)
/// 5. Log the print operation and result (including any error message) to the log file
/// 6. Repeat until all report have been printed
/// </summary>
private void PrintReportBatch(object printer)
{
// changes to get this thread working in the background: changes aspnet.config rather than the Impersonate option
// changes to aspnet.config: see http://www.leastprivilege.com/CommentView.aspx?guid=4b87938a-ee1b-4bf8-994c-befbfeac9b97
//Thread.GetDomain().SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal); // Session["User1"] = this.Context.User.Identity.Name;
//((WindowsIdentity)this.Context.User.Identity).Impersonate();
//((WindowsIdentity)Thread.CurrentPrincipal.Identity).Impersonate();
//this.Request.LogonUserIdentity.Impersonate();
//string applicationName = "BatchPrint";
//IUserManager userManager = GetUserManager();
//bool authenticated;
//authenticated = userManager.Authenticate(applicationName, userName, password);
//if (authenticated)
//{
// IIdentity identity = new GenericIdentity(userName);
// CustomPrincipal.Attach(identity, applicationName, userManager, CacheRoles);
//}

// initialise variables
bool status = true;
string report = null;
int copies;
string parameters;
PrintReport printReport = new PrintReport((string) printer, this.Context.User.Identity.Name, this.Context.Request.RawUrl); // @"\\biarritz\L1 Xerox C4300"

// open the specified batch in the database
//sdsExecute.SelectParameters["BatchId"].DefaultValue = "1";
//sdsExecute.SelectParameters["ReportCondition"].DefaultValue = "Week";
SqlDataReader reports = (SqlDataReader) sdsExecute.Select(new DataSourceSelectArguments());

// check for no reports
if (reports == null)
{
Session["Printing"] = false;
return;
}

// create the results table
Table tblResults = new Table();
TableHeaderRow thr = new TableHeaderRow();
TableHeaderCell thc;
TableRow tr;
TableCell tc;
//CellPadding="1" CellSpacing="1">
tblResults.BorderColor = Color.Black;
tblResults.BorderStyle= BorderStyle.Solid;
tblResults.BorderWidth = 1;

// create the header row for the table
tblResults.Rows.Add(thr);
thc = new TableHeaderCell(); thr.Cells.Add(thc); thc.Text = "#";
thc = new TableHeaderCell(); thr.Cells.Add(thc); thc.Text = "Report";
thc = new TableHeaderCell(); thr.Cells.Add(thc); thc.Text = "Copies";
thc = new TableHeaderCell(); thr.Cells.Add(thc); thc.Text = "Result";
thc = new TableHeaderCell(); thr.Cells.Add(thc); thc.Text = "Message";

// loop through the reports
for (int count=1; reports.Read(); count++)
{
// print the report
report = reports.GetString(0);
if (reports.IsDBNull(1))
parameters = null;
else
parameters = reports.GetString(1);
if (reports.IsDBNull(2))
copies = 1;
else
copies = reports.GetInt32(2);
if (copies > 0)
status = printReport.RenderPrint(report, parameters, copies);
else
{
status = true;
printReport.ErrorMessage = ""; // clear the last error message
}
// status = true;
//System.Threading.Thread.Sleep(2500);

// display the results
tr = new TableRow();
tr.BackColor = status ? Color.Lime : Color.Red;
tblResults.Rows.Add(tr);
tc = new TableCell(); tr.Cells.Add(tc); tc.Text = count.ToString();
tc = new TableCell(); tr.Cells.Add(tc); tc.Text = report;
tc = new TableCell(); tr.Cells.Add(tc); tc.Text = copies.ToString();
tc = new TableCell(); tr.Cells.Add(tc); tc.Text = status ? "Printed" : "Error";
tc = new TableCell(); tr.Cells.Add(tc); tc.Text = status ? "at: " + DateTime.Now.ToString() + @", to: " + (string) printer : printReport.ErrorMessage;
Session["Results"] = tblResults;
}

// finish up
reports.Close();
Session["Printing"] = "End";
}

/// <summary>
/// Return to the batch screen
/// </summary>
protected void btnReturn_Click(object sender, EventArgs e)
{
Response.Redirect("Batch.aspx");
}

/// <summary>
/// Collect and display the latest results
/// </summary>
protected void tmrResults_Tick(object sender, EventArgs e)
{
lblResults.Text = "Print status as at: " + DateTime.Now.ToLongTimeString(); // +" - " + (Session["Printing"] == null ? "null" : Session["Printing"]) + ", " + (printReports == null ? "null" : printReports.IsAlive.ToString());
Table tblResults = (Table) Session["Results"];
if (tblResults != null)
udpResults.ContentTemplateContainer.Controls.Add(tblResults);
if (Session["Printing"] == null)
{
lblResults.Text = "A fatal error occured with the background printing process. Please report this error on the helpdesk system.";
tmrResults.Enabled = false;
return;
}
if ((string) Session["Printing"] == "End")
{
lblResults.Text = "Printing Complete"; // +" - " + (Session["Printing"] == null ? "null" : Session["Printing"]) + ", " + (printReports == null ? "null" : printReports.IsAlive.ToString());
tmrResults.Enabled = false;
}
}
}




Posted as a reply to:

Printing from IIS

Hi Brain,

I am trying to print a document from asp.net which is hosted in IIS. When i print a document from asp.net application, i can able to print to the network printer. But, if i try to print the same from IIS, It hits the printer but it doesn't print

Our network printer is Password protected. I believe when i call the printer from IIS, some security options is added and i doesn't print.

I need a some sample to print document from IIS. Actually i'm very new to this.

Thanks for yor help.

Regards,
Prabakaran

EggHeadCafe - Software Developer Portal of Choice
WCF Workflow Services Using External Data Exchange
http://www.eggheadcafe.com/tutorial...a-6dafb17b6d74/wcf-workflow-services-usi.aspx