From ba4213c7350e7a145a142d0cbe54718a8c92b93c Mon Sep 17 00:00:00 2001
Subject: 8193682: Infinite loop in ZipOutputStream.close()
---
 .../java/util/zip/DeflaterOutputStream.java   |   9 +-
 .../java/util/zip/GZIPOutputStream.java       |  38 +++--
 .../java/util/zip/ZipOutputStream.java        |  96 ++++++------
 jdk/test/java/util/zip/CloseDeflaterTest.java | 147 ++++++++++++++++++
 4 files changed, 226 insertions(+), 64 deletions(-)
 create mode 100644 jdk/test/java/util/zip/CloseDeflaterTest.java

diff --git a/jdk/src/share/classes/java/util/zip/DeflaterOutputStream.java b/jdk/src/share/classes/java/util/zip/DeflaterOutputStream.java
index a1f768cae..f4cf79693 100644
--- a/jdk/src/share/classes/java/util/zip/DeflaterOutputStream.java
+++ b/jdk/src/share/classes/java/util/zip/DeflaterOutputStream.java
@@ -235,9 +235,12 @@ class DeflaterOutputStream extends FilterOutputStream {
      */
     public void close() throws IOException {
         if (!closed) {
-            finish();
-            if (usesDefaultDeflater)
-                def.end();
+            try {
+                finish();
+            } finally {
+                if (usesDefaultDeflater)
+                    def.end();
+            }
             out.close();
             closed = true;
         }
diff --git a/jdk/src/share/classes/java/util/zip/GZIPOutputStream.java b/jdk/src/share/classes/java/util/zip/GZIPOutputStream.java
index 2c1cd409b..1c3f8592e 100644
--- a/jdk/src/share/classes/java/util/zip/GZIPOutputStream.java
+++ b/jdk/src/share/classes/java/util/zip/GZIPOutputStream.java
@@ -154,24 +154,30 @@ class GZIPOutputStream extends DeflaterOutputStream {
      */
     public void finish() throws IOException {
         if (!def.finished()) {
-            def.finish();
-            while (!def.finished()) {
-                int len = def.deflate(buf, 0, buf.length);
-                if (def.finished() && len <= buf.length - TRAILER_SIZE) {
-                    // last deflater buffer. Fit trailer at the end
-                    writeTrailer(buf, len);
-                    len = len + TRAILER_SIZE;
-                    out.write(buf, 0, len);
-                    return;
+            try {
+                def.finish();
+                while (!def.finished()) {
+                    int len = def.deflate(buf, 0, buf.length);
+                    if (def.finished() && len <= buf.length - TRAILER_SIZE) {
+                        // last deflater buffer. Fit trailer at the end
+                        writeTrailer(buf, len);
+                        len = len + TRAILER_SIZE;
+                        out.write(buf, 0, len);
+                        return;
+                    }
+                    if (len > 0)
+                        out.write(buf, 0, len);
                 }
-                if (len > 0)
-                    out.write(buf, 0, len);
+                // if we can't fit the trailer at the end of the last
+                // deflater buffer, we write it separately
+                byte[] trailer = new byte[TRAILER_SIZE];
+                writeTrailer(trailer, 0);
+                out.write(trailer);
+            } catch (IOException e) {
+                if (usesDefaultDeflater)
+                    def.end();
+                throw e;
             }
-            // if we can't fit the trailer at the end of the last
-            // deflater buffer, we write it separately
-            byte[] trailer = new byte[TRAILER_SIZE];
-            writeTrailer(trailer, 0);
-            out.write(trailer);
         }
     }
 
diff --git a/jdk/src/share/classes/java/util/zip/ZipOutputStream.java b/jdk/src/share/classes/java/util/zip/ZipOutputStream.java
index 6b480aa1d..f001ddf00 100644
--- a/jdk/src/share/classes/java/util/zip/ZipOutputStream.java
+++ b/jdk/src/share/classes/java/util/zip/ZipOutputStream.java
@@ -247,59 +247,65 @@ class ZipOutputStream extends DeflaterOutputStream implements ZipConstants {
     public void closeEntry() throws IOException {
         ensureOpen();
         if (current != null) {
-            ZipEntry e = current.entry;
-            switch (e.method) {
-            case DEFLATED:
-                def.finish();
-                while (!def.finished()) {
-                    deflate();
-                }
-                if ((e.flag & 8) == 0) {
-                    // verify size, compressed size, and crc-32 settings
-                    if (e.size != def.getBytesRead()) {
-                        throw new ZipException(
-                            "invalid entry size (expected " + e.size +
-                            " but got " + def.getBytesRead() + " bytes)");
+            try {
+                ZipEntry e = current.entry;
+                switch (e.method) {
+                case DEFLATED:
+                    def.finish();
+                    while (!def.finished()) {
+                        deflate();
                     }
-                    if (e.csize != def.getBytesWritten()) {
+                    if ((e.flag & 8) == 0) {
+                        // verify size, compressed size, and crc-32 settings
+                        if (e.size != def.getBytesRead()) {
+                            throw new ZipException(
+                                "invalid entry size (expected " + e.size +
+                                " but got " + def.getBytesRead() + " bytes)");
+                        }
+                        if (e.csize != def.getBytesWritten()) {
+                            throw new ZipException(
+                                "invalid entry compressed size (expected " +
+                                e.csize + " but got " + def.getBytesWritten() + " bytes)");
+                        }
+                        if (e.crc != crc.getValue()) {
+                            throw new ZipException(
+                                "invalid entry CRC-32 (expected 0x" +
+                                Long.toHexString(e.crc) + " but got 0x" +
+                                Long.toHexString(crc.getValue()) + ")");
+                        }
+                    } else {
+                        e.size  = def.getBytesRead();
+                        e.csize = def.getBytesWritten();
+                        e.crc = crc.getValue();
+                        writeEXT(e);
+                    }
+                    def.reset();
+                    written += e.csize;
+                    break;
+                case STORED:
+                    // we already know that both e.size and e.csize are the same
+                    if (e.size != written - locoff) {
                         throw new ZipException(
-                            "invalid entry compressed size (expected " +
-                            e.csize + " but got " + def.getBytesWritten() + " bytes)");
+                            "invalid entry size (expected " + e.size +
+                            " but got " + (written - locoff) + " bytes)");
                     }
                     if (e.crc != crc.getValue()) {
                         throw new ZipException(
-                            "invalid entry CRC-32 (expected 0x" +
-                            Long.toHexString(e.crc) + " but got 0x" +
-                            Long.toHexString(crc.getValue()) + ")");
+                             "invalid entry crc-32 (expected 0x" +
+                             Long.toHexString(e.crc) + " but got 0x" +
+                             Long.toHexString(crc.getValue()) + ")");
                     }
-                } else {
-                    e.size  = def.getBytesRead();
-                    e.csize = def.getBytesWritten();
-                    e.crc = crc.getValue();
-                    writeEXT(e);
+                    break;
+                default:
+                    throw new ZipException("invalid compression method");
                 }
-                def.reset();
-                written += e.csize;
-                break;
-            case STORED:
-                // we already know that both e.size and e.csize are the same
-                if (e.size != written - locoff) {
-                    throw new ZipException(
-                        "invalid entry size (expected " + e.size +
-                        " but got " + (written - locoff) + " bytes)");
-                }
-                if (e.crc != crc.getValue()) {
-                    throw new ZipException(
-                         "invalid entry crc-32 (expected 0x" +
-                         Long.toHexString(e.crc) + " but got 0x" +
-                         Long.toHexString(crc.getValue()) + ")");
-                }
-                break;
-            default:
-                throw new ZipException("invalid compression method");
+                crc.reset();
+                current = null;
+            } catch (IOException e) {
+                if (usesDefaultDeflater && !(e instanceof ZipException))
+                    def.end();
+                throw e;
             }
-            crc.reset();
-            current = null;
         }
     }
 
diff --git a/jdk/test/java/util/zip/CloseDeflaterTest.java b/jdk/test/java/util/zip/CloseDeflaterTest.java
new file mode 100644
index 000000000..8aa4960f5
--- /dev/null
+++ b/jdk/test/java/util/zip/CloseDeflaterTest.java
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2021, 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.
+ */
+
+/**
+ * @test
+ * @bug 8193682
+ * @summary Test Infinite loop while writing on closed GZipOutputStream , ZipOutputStream and JarOutputStream.
+ * @run testng CloseDeflaterTest
+ */
+import java.io.*;
+import java.util.Random;
+import java.util.jar.JarOutputStream;
+import java.util.zip.GZIPOutputStream;
+import java.util.zip.ZipOutputStream;
+import java.util.zip.ZipEntry;
+
+import org.testng.annotations.BeforeTest;
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+import static org.testng.Assert.fail;
+
+
+public class CloseDeflaterTest {
+
+    //number of bytes to write
+    private static final int INPUT_LENGTH= 512;
+    //OutputStream that will throw an exception during a write operation
+    private static OutputStream outStream = new OutputStream() {
+        @Override
+        public void write(byte[] b, int off, int len) throws IOException {
+            //throw exception during write
+            throw new IOException();
+        }
+        @Override
+        public void write(byte b[]) throws IOException {}
+        @Override
+        public void write(int b) throws IOException {}
+    };
+    private static byte[] inputBytes = new byte[INPUT_LENGTH];
+    private static Random rand = new Random();
+
+    @DataProvider(name = "testgzipinput")
+    public Object[][] testGZipInput() {
+     //testGZip will close the GZipOutputStream using close() method when the boolean
+     //useCloseMethod is set to true and finish() method if the value is set to false
+     return new Object[][] {
+      { GZIPOutputStream.class, true },
+      { GZIPOutputStream.class, false },
+     };
+    }
+
+    @DataProvider(name = "testzipjarinput")
+    public Object[][] testZipAndJarInput() {
+     //testZipAndJarInput will perfrom write/closeEntry operations on JarOutputStream when the boolean
+     //useJar is set to true and on ZipOutputStream if the value is set to false
+     return new Object[][] {
+      { JarOutputStream.class, true },
+      { ZipOutputStream.class, false },
+     };
+    }
+
+    @BeforeTest
+    public void before_test()
+    {
+       //add inputBytes array with random bytes to write into Zip
+       rand.nextBytes(inputBytes);
+    }
+
+    //Test for infinite loop by writing bytes to closed GZIPOutputStream
+    @Test(dataProvider = "testgzipinput")
+    public void testGZip(Class<?> type, boolean useCloseMethod) throws IOException {
+        GZIPOutputStream zip = new GZIPOutputStream(outStream);
+        try {
+            zip.write(inputBytes, 0, INPUT_LENGTH);
+            //close zip
+            if(useCloseMethod) {
+               zip.close();
+            } else {
+               zip.finish();
+            }
+        } catch (IOException e) {
+            //expected
+        }
+        for (int i = 0; i < 3; i++) {
+            try {
+                //write on a closed GZIPOutputStream
+                zip.write(inputBytes, 0, INPUT_LENGTH);
+                fail("Deflater closed exception not thrown");
+            } catch (NullPointerException e) {
+                //expected , Deflater has been closed exception
+            }
+        }
+    }
+
+    //Test for infinite loop by writing bytes to closed ZipOutputStream/JarOutputStream
+    @Test(dataProvider = "testzipjarinput")
+    public void testZipCloseEntry(Class<?> type,boolean useJar) throws IOException {
+        ZipOutputStream zip = null;
+        if(useJar) {
+           zip = new JarOutputStream(outStream);
+        } else {
+           zip = new ZipOutputStream(outStream);
+        }
+        try {
+            zip.putNextEntry(new ZipEntry(""));
+        } catch (IOException e) {
+            //expected to throw IOException since putNextEntry calls write method
+        }
+        try {
+            zip.write(inputBytes, 0, INPUT_LENGTH);
+            //close zip entry
+            zip.closeEntry();
+        } catch (IOException e) {
+            //expected
+        }
+        for (int i = 0; i < 3; i++) {
+            try {
+                //write on a closed ZipOutputStream
+                zip.write(inputBytes, 0, INPUT_LENGTH);
+                fail("Deflater closed exception not thrown");
+            } catch (NullPointerException e) {
+                //expected , Deflater has been closed exception
+            }
+        }
+    }
+
+}
-- 
2.22.0

