undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.

test/jdk/java/awt/datatransfer/DragImage/MultiResolutionDragImageTest.java

@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import sun.awt.image.MultiResolutionToolkitImage;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.image.BufferedImage;
+
+import static java.awt.event.InputEvent.BUTTON1_DOWN_MASK;
+
+/**
+ * @test
+ * @key headful
+ * @bug 8076106
+ * @author Hendrik Schreiber
+ * @summary [macosx] Drag image of TransferHandler does not honor
+ * MultiResolutionImage
+ * @modules java.desktop/sun.awt.image
+ * @run main MultiResolutionDragImageTest TEST_DRAG
+ */
+public class MultiResolutionDragImageTest {
+
+    private static final Color COLOR_1X = Color.BLUE;
+    private static final Color COLOR_2X = Color.RED;
+    private static JFrame frame;
+    private static JTextField field;
+    private static Point p;
+
+    public static void main(String[] args) throws Exception {
+
+        final String test = args[0];
+
+        switch (test) {
+            case "TEST_DRAG":
+                testDrag();
+                break;
+            default:
+                throw new RuntimeException("Unknown test: " + test);
+        }
+    }
+
+    private static void testDrag() throws Exception {
+
+
+        SwingUtilities.invokeAndWait(() -> {
+
+            frame = new JFrame();
+            field = new JTextField("Drag Me");
+            setupFrame(frame, field);
+            frame.setVisible(true);
+        });
+
+        final Robot robot = new Robot();
+        robot.setAutoDelay(500);
+        robot.setAutoWaitForIdle(true);
+        robot.waitForIdle();
+
+        // get mouse into position
+        SwingUtilities.invokeAndWait(() -> {
+
+            p = new Point(field.getWidth() / 2, field.getHeight() / 2);
+            SwingUtilities.convertPointToScreen(p, field);
+        });
+
+        robot.mouseMove(p.x, p.y);
+        // simulate dragging
+        robot.mousePress(BUTTON1_DOWN_MASK);
+        p.translate(10, 10);
+        robot.mouseMove(p.x, p.y);
+
+        p.translate(5, 5);
+        final Color color = robot.getPixelColor(p.x, p.y);
+        robot.mouseRelease(BUTTON1_DOWN_MASK);
+
+        SwingUtilities.invokeAndWait(frame::dispose);
+
+        final float scaleFactor = getScaleFactor();
+        final Color testColor = (1 < scaleFactor) ? COLOR_2X : COLOR_1X;
+
+        if (!similar(testColor, color)) {
+            throw new RuntimeException(
+                    "TEST FAILED: Image with wrong resolution is used for drag image!");
+        }
+        System.out.println("TEST PASSED!");
+    }
+
+    private static void setupFrame(final JFrame frame, final JTextField field) {
+
+        frame.setBounds(0, 0, 50, 50);
+        frame.setLayout(new BorderLayout());
+        field.setDragEnabled(true);
+        final TransferHandler transferHandler = field.getTransferHandler();
+        transferHandler.setDragImage(createMultiResolutionImage());
+        frame.getContentPane().add(field, BorderLayout.CENTER);
+    }
+
+    private static boolean similar(Color c1, Color c2){
+        return similar(c1.getRed(), c2.getRed())
+                && similar(c1.getGreen(), c2.getGreen())
+                && similar(c1.getBlue(), c2.getBlue());
+    }
+
+    private static boolean similar(int n, int m){
+        return Math.abs(n - m) <= 50;
+    }
+
+    static float getScaleFactor() {
+        return (float) GraphicsEnvironment.
+                getLocalGraphicsEnvironment().
+                getDefaultScreenDevice().getDefaultConfiguration().
+                getDefaultTransform().getScaleX();
+    }
+
+    private static Image createMultiResolutionImage() {
+
+        return new MultiResolutionToolkitImage(
+                createImage(50, COLOR_1X),
+                createImage(100, COLOR_2X)
+        );
+
+    }
+
+    private static Image createImage(final int length, final Color color) {
+
+        final BufferedImage image = new BufferedImage(length, length,
+                BufferedImage.TYPE_INT_ARGB_PRE);
+        final Graphics graphics = image.getGraphics();
+        graphics.setColor(color);
+        graphics.fillRect(0, 0, length, length);
+        graphics.dispose();
+        return image;
+    }
+}