Fix zip slip security flaw

Apply zip slip checking in zip operations throughout the system.
Centralizes most of the zip logic in one class. Create tests to zip
functionalities and zip slip problem.

Change-Id: I721f3d44b34fe6d242c9537f5a515ce1bb534c9a
Issue-ID: SDC-1401
Signed-off-by: andre.schmid <andre.schmid@est.tech>

1 files changed, 25 insertions, 23 deletions

diff --git a/openecomp-be/lib/openecomp-core-lib/openecomp-utilities-lib/src/test/java/org/openecomp/core/utilities/file/FileUtilsTest.java b/openecomp-be/lib/openecomp-core-lib/openecomp-utilities-lib/src/test/java/org/openecomp/core/utilities/file/FileUtilsTest.java
index a4928ac739..facfe57622 100644
--- a/openecomp-be/lib/openecomp-core-lib/openecomp-utilities-lib/src/test/java/org/openecomp/core/utilities/file/FileUtilsTest.java
+++ b/openecomp-be/lib/openecomp-core-lib/openecomp-utilities-lib/src/test/java/org/openecomp/core/utilities/file/FileUtilsTest.java
@@ -17,8 +17,12 @@
 package org.openecomp.core.utilities.file;
 
 import static junit.framework.TestCase.assertTrue;
-import static org.junit.Assert.assertEquals;
+import static org.hamcrest.Matchers.aMapWithSize;
+import static org.hamcrest.Matchers.anEmptyMap;
+import static org.hamcrest.Matchers.not;
+import static org.hamcrest.core.Is.is;
 import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
 
 import java.io.File;
 import java.io.IOException;
@@ -34,6 +38,7 @@ import java.util.stream.Stream;
 import org.apache.commons.io.IOUtils;
 import org.junit.Assert;
 import org.junit.Test;
+import org.openecomp.sdc.common.zip.exception.ZipException;
 
 /**
  * @author EVITALIY
@@ -74,25 +79,22 @@ public class FileUtilsTest {
     }
 
     @Test
-    public void testWriteFilesFromFileContentHandler() throws IOException {
-        Path dir = Files.createTempDirectory("CSAR_" + System.currentTimeMillis());
+    public void testWriteFilesFromFileContentHandler() throws IOException, ZipException {
+        final Path tempDirectory = Files.createTempDirectory("CSAR_" + System.currentTimeMillis());
         try {
-            byte[] uploadedFileData = IOUtils.toByteArray(
-                FileUtilsTest.class.getResource("resource-Spgw-csar-ZTE" +
-                    ".csar"));
-            FileContentHandler contentMap = FileUtils.getFileContentMapFromZip(uploadedFileData);
-            Map<String, String> filePaths = FileUtils.writeFilesFromFileContentHandler(contentMap,
-                dir);
-
-            assertFalse(filePaths.isEmpty());
-            assertEquals(filePaths.size(), 18);
-            for (Map.Entry<String, String> fileEntry : filePaths.entrySet()) {
-                File f = new File(fileEntry.getValue());
-                assertTrue(f.exists());
+            byte[] uploadedFileData =
+                IOUtils.toByteArray(FileUtilsTest.class.getResource("resource-Spgw-csar-ZTE.csar"));
+            final FileContentHandler contentMap = FileUtils.getFileContentMapFromZip(uploadedFileData);
+            final Map<String, String> filePaths = FileUtils.writeFilesFromFileContentHandler(contentMap, tempDirectory);
+
+            assertThat("The file map should not be empty", filePaths, is(not(anEmptyMap())));
+            assertThat("The file map should have size 20", filePaths, is(aMapWithSize(20)));
+            for (final Map.Entry<String, String> fileEntry : filePaths.entrySet()) {
+                final File f = new File(fileEntry.getValue());
+                assertThat(String.format("The file '%s' is expected to", f.getAbsolutePath()), f.exists(), is(true));
             }
-        }
-        finally {
-            org.apache.commons.io.FileUtils.deleteDirectory(dir.toFile());
+        } finally {
+            org.apache.commons.io.FileUtils.deleteDirectory(tempDirectory.toFile());
         }
     }
 
@@ -106,22 +108,22 @@ public class FileUtilsTest {
 
     @Test
     public void testGetFileWithoutExtention() {
-        Assert.assertEquals(FileUtils.getFileWithoutExtention("test.txt"), "test");
+        Assert.assertEquals("test", FileUtils.getFileWithoutExtention("test.txt"));
     }
 
     @Test
     public void testGetFileWithoutExtentionContainsNoExtension() {
-        Assert.assertEquals(FileUtils.getFileWithoutExtention("test"), "test");
+        Assert.assertEquals("test", FileUtils.getFileWithoutExtention("test"));
     }
 
     @Test
     public void testGetFileExtention() {
-        Assert.assertEquals(FileUtils.getFileExtension("test.txt"), "txt");
+        Assert.assertEquals("txt", FileUtils.getFileExtension("test.txt"));
     }
 
     @Test
     public void testGetNetworkPackageName() {
-        Assert.assertEquals(FileUtils.getNetworkPackageName("heat.zip"), "heat");
+        Assert.assertEquals("heat", FileUtils.getNetworkPackageName("heat.zip"));
     }
 
     @Test
@@ -191,6 +193,6 @@ public class FileUtilsTest {
         }
 
         Assert.assertNotNull(inputStream);
-        Assert.assertEquals(builder.toString(), "hello-test");
+        Assert.assertEquals("hello-test", builder.toString());
     }
 }