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From ma...@apache.org
Subject svn commit: r1785271 - in /tomcat/trunk: java/org/apache/tomcat/util/scan/AbstractInputStreamJar.java test/org/apache/tomcat/util/scan/TestAbstractInputStreamJar.java webapps/docs/changelog.xml
Date Fri, 03 Mar 2017 11:54:46 GMT
Author: markt
Date: Fri Mar  3 11:54:46 2017
New Revision: 1785271

URL: http://svn.apache.org/viewvc?rev=1785271&view=rev
Log:
Fix https://bz.apache.org/bugzilla/show_bug.cgi?id=60798
Correct a bug in the handling of JARs in unpacked WARs that meant multiple attempts to read
the same entry from a JAR in succession would fail for the second and subsequent attempts.

Added:
    tomcat/trunk/test/org/apache/tomcat/util/scan/TestAbstractInputStreamJar.java
Modified:
    tomcat/trunk/java/org/apache/tomcat/util/scan/AbstractInputStreamJar.java
    tomcat/trunk/webapps/docs/changelog.xml

Modified: tomcat/trunk/java/org/apache/tomcat/util/scan/AbstractInputStreamJar.java
URL: http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/tomcat/util/scan/AbstractInputStreamJar.java?rev=1785271&r1=1785270&r2=1785271&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/tomcat/util/scan/AbstractInputStreamJar.java (original)
+++ tomcat/trunk/java/org/apache/tomcat/util/scan/AbstractInputStreamJar.java Fri Mar  3 11:54:46
2017
@@ -93,6 +93,10 @@ public abstract class AbstractInputStrea
         if (entry == null) {
             return null;
         } else {
+            // Clear the entry so that multiple calls to this method for the
+            // same entry will result in a new InputStream for each call
+            // (BZ 60798)
+            entry = null;
             return jarInputStream;
         }
     }

Added: tomcat/trunk/test/org/apache/tomcat/util/scan/TestAbstractInputStreamJar.java
URL: http://svn.apache.org/viewvc/tomcat/trunk/test/org/apache/tomcat/util/scan/TestAbstractInputStreamJar.java?rev=1785271&view=auto
==============================================================================
--- tomcat/trunk/test/org/apache/tomcat/util/scan/TestAbstractInputStreamJar.java (added)
+++ tomcat/trunk/test/org/apache/tomcat/util/scan/TestAbstractInputStreamJar.java Fri Mar
 3 11:54:46 2017
@@ -0,0 +1,59 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.tomcat.util.scan;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.InputStream;
+import java.net.URL;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import org.apache.catalina.util.IOTools;
+import org.apache.catalina.webresources.TomcatURLStreamHandlerFactory;
+import org.apache.tomcat.Jar;
+
+public class TestAbstractInputStreamJar {
+
+    @Before
+    public void register() {
+        TomcatURLStreamHandlerFactory.register();
+    }
+
+
+    @Test
+    public void testNestedJarGetInputStream() throws Exception {
+        File f = new File("test/webresources/war-url-connection.war");
+        StringBuilder sb = new StringBuilder("war:");
+        sb.append(f.toURI().toURL());
+        sb.append("*/WEB-INF/lib/test.jar");
+
+        Jar jar = JarFactory.newInstance(new URL(sb.toString()));
+
+        InputStream is1 = jar.getInputStream("META-INF/resources/index.html");
+        ByteArrayOutputStream baos1 = new ByteArrayOutputStream();
+        IOTools.flow(is1, baos1);
+
+        InputStream is2 = jar.getInputStream("META-INF/resources/index.html");
+        ByteArrayOutputStream baos2 = new ByteArrayOutputStream();
+        IOTools.flow(is2, baos2);
+
+        Assert.assertArrayEquals(baos1.toByteArray(), baos2.toByteArray());
+    }
+}

Modified: tomcat/trunk/webapps/docs/changelog.xml
URL: http://svn.apache.org/viewvc/tomcat/trunk/webapps/docs/changelog.xml?rev=1785271&r1=1785270&r2=1785271&view=diff
==============================================================================
--- tomcat/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/trunk/webapps/docs/changelog.xml Fri Mar  3 11:54:46 2017
@@ -136,6 +136,11 @@
         application. Note that the Servlet 4.0 API is still a work in progress
         and further changes are likely. (markt)
       </update>
+      <fix>
+        <bug>60798</bug>: Correct a bug in the handling of JARs in unpacked WARs
+        that meant multiple attempts to read the same entry from a JAR in
+        succession would fail for the second and subsequent attempts. (markt)
+      </fix>
     </changelog>
   </subsection>
   <subsection name="Coyote">



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