Name: jk109818 Date: 10/17/2002


FULL PRODUCT VERSION :
java version "1.4.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-b92)
Java HotSpot(TM) Client VM (build 1.4.0-b92, mixed mode)

AND

java version "1.4.1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-b21)
Java HotSpot(TM) Client VM (build 1.4.1-b21, mixed mode)

FULL OPERATING SYSTEM VERSION :
Windows 98 [Version 4.10.2222]


A DESCRIPTION OF THE PROBLEM :
This is in part a bug report and in part a request for
enhancement.

When an unsigned applet tries to print, Java now puts up the
dialog "Confirmation Needed - Print \ Print Request \ Applet
would like to print \ Do you want to proceed?" This is a
lot better than the security exception of old. Signing is
one way to deal with it, but this takes work and for
unsigned applets this prompt is an appropriate and useful
solution.

The problem is that the dialog appears both when PrinterJob
is instantiated and again when the applet calls
PrinterJob.print(). The user has no idea why they should
have to answer the question twice for one printing
operation. The spec doesn't require two confirmations, so
this is a bug and/or incorrect implementation.

In addition, each time a user tries to print after that, the
"Confirmation Needed" dialog comes up again (fortunately,
only once). The request for enhancement would be that the
first time should take care of it for the duration of the
applet. This user has given the applet permission to print,
so the security check should be regarded as met.

After this dialog, the applet will usually put up the
regular print dialog, which gives the user another
opporutnity to cancel an unwanted print operation. An
variant of this request for enhancement would be to only put
up "Confirmation Needed" for each print operation after the
first only if a print dialog isn't used. Yet another
alternative would be to forbid "silent" printing from
unsigned applets. The basic idea is that it shouldn't take
more than one confirmation by a user to say they want to print.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Compile and run the applet below.

EXPECTED VERSUS ACTUAL BEHAVIOR :
Expected:
Only one printing security check per run of an applet
-- or if not that ---
At most one printing security check for the first print
operation.

Actual:
Two printing security checks on the first print operation +
printing security checks each time thereafter, even when
followed by a print dialog

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.*;
import java.applet.*;
import java.awt.print.*;

public class Test extends Applet
{
public void init()
{
setLayout(null);
setSize(426,266);
PrinterJob pj = PrinterJob.getPrinterJob();
PageFormat pf = pj.defaultPage();
pj.setPrintable(new Content(), pf);
while (true) {
try { if (pj.printDialog()) pj.print(); } catch (Exception e) {}
try { pj.print(); } catch (Exception e) {}
}
}
}

class Content implements Printable {
    public int print(Graphics g, PageFormat pf, int pageIndex) {
        if (pageIndex>0) return Printable.NO_SUCH_PAGE;
        Graphics2D g2d = (Graphics2D) g;
        g2d.translate(pf.getImageableX(), pf.getImageableY());
        g2d.drawString("This is some text",100,100);
        return Printable.PAGE_EXISTS;
    }
}

    

---------- END SOURCE ----------

CUSTOMER WORKAROUND :
1. Sign the applet.
2. Keep saying "Yes".
(Review ID: 164979)
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