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10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
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23 
24 /**
25  * @test
26  * @key printer
27  * @bug 4151151
28  * @summary Confirm that low-level print code does doPrivilege.
29  * @author Graham Hamilton
30  */
31 
32 import java.awt.print.*;
33 
34 public class CheckPrivilege implements Printable {
35 
36     static boolean verbose;
37 
println(String mess)38     private static void println(String mess) {
39         if (verbose) {
40             System.err.println(mess);
41         }
42     }
43 
44     /**
45      * SecurityManager that allows print requests, but
46      * causes things like "exec" to get checked.
47      */
48     static class PrintLover extends SecurityManager {
checkPrintJobAccess()49         public void checkPrintJobAccess() {
50         }
checkPackageAccess(String pkg)51         public void checkPackageAccess(String pkg) {
52         }
checkPropertyAccess(String key)53         public void checkPropertyAccess(String key) {
54         }
55     }
56 
57     /**
58      * Internal exception to boucne us out of the print code
59      */
60     class Printing extends RuntimeException {
61     }
62 
main(String argv[])63     public static void main(String argv[]) {
64 
65         System.out.println( "-----------------------------------------------------------------------");
66         System.out.println( "INSTRUCTIONS: You should have a printer configured in your system to do this test. Test fails if you get this error message:");
67         System.out.println("   \"Regression: printing causes a NullPointerException\"");
68     System.out.println( "-----------------------------------------------------------------------");
69 
70         if (argv.length > 0 && argv[0].equals("-v")) {
71             verbose = true;
72         }
73 
74         // We need to make sure AWT is initialized.  This is bug #4162674
75         java.awt.Toolkit.getDefaultToolkit();
76 
77         // Try to install our own security manager.
78         try {
79             SecurityManager sm = new PrintLover();
80             println("Installing PrintLover security manager");
81             System.setSecurityManager(sm);
82             println("Installed security manager OK");
83 
84         } catch (Throwable th) {
85             System.err.println("Failed to install SecurityManager");
86             th.printStackTrace();
87             throw new RuntimeException("Failed to install SecurityManager");
88         }
89 
90         try {
91             println("calling getPrinterJob");
92             PrinterJob pj = PrinterJob.getPrinterJob();
93             if ((pj == null) || (pj.getPrintService() == null)){
94                 return;
95             }
96 
97             println("PrinterJob class is " + pj.getClass());
98             println("calling pj.setPrintable");
99             pj.setPrintable(new CheckPrivilege());
100             println("calling pj.print");
101             pj.print();
102             println("done pj.print");
103 
104         } catch (Printing ex) {
105             // We get here if the print request started OK.
106             println("Caught \"Printing\" exception OK");
107 
108         } catch (PrinterException ex) {
109             System.err.println("Caught " + ex);
110             throw new RuntimeException("" + ex);
111 
112         } catch (NullPointerException ex) {
113             // This is the bug:
114             System.err.println("Caught " + ex);
115             System.err.println("Regression: printing causes a NullPointerException");
116             throw ex;
117         }
118 
119         //System.exit(0);
120 
121     }
122 
123     // Back-call from the new print APIs.
124     // We always say we have bothing to print.
print(java.awt.Graphics g, PageFormat pf, int index)125     public int print(java.awt.Graphics g, PageFormat pf, int index) {
126         println("Started printing " + index);
127         return Printable.NO_SUCH_PAGE;
128     }
129 
130 
131 }
132