Bug 58616: Try to initialize with empty password if not done before

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1722407 13f79535-47bb-0310-9956-ffa450edef68

src/integrationtest/org/apache/poi/TestAllFiles.java

@@ -199,6 +199,7 @@ public class TestAllFiles {
         //EXPECTED_FAILURES.add("poifs/protected_sha512.xlsx");
         //EXPECTED_FAILURES.add("poifs/extenxls_pwd123.xlsx");
         //EXPECTED_FAILURES.add("poifs/protected_agile.docx");
+        EXPECTED_FAILURES.add("spreadsheet/58616.xlsx");
 
         // TODO: fails XMLExportTest, is this ok?
         EXPECTED_FAILURES.add("spreadsheet/CustomXMLMapping-singleattributenamespace.xlsx");

src/java/org/apache/poi/poifs/crypt/standard/StandardDecryptor.java

@@ -127,6 +127,9 @@ public class StandardDecryptor extends Decryptor {
 
         _length = dis.readLong();
 
+        if(getSecretKey() == null) {
+            verifyPassword(null);
+        }
         // limit wrong calculated ole entries - (bug #57080)
         // standard encryption always uses aes encoding, so blockSize is always 16 
         // http://stackoverflow.com/questions/3283787/size-of-data-after-aes-encryption

src/ooxml/testcases/org/apache/poi/poifs/crypt/TestDecryptor.java

@@ -22,6 +22,7 @@ import static org.junit.Assert.assertTrue;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
+import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.security.GeneralSecurityException;
@@ -33,6 +34,7 @@ import org.apache.poi.poifs.filesystem.DirectoryNode;
 import org.apache.poi.poifs.filesystem.NPOIFSFileSystem;
 import org.apache.poi.poifs.filesystem.POIFSFileSystem;
 import org.apache.poi.util.IOUtils;
+import org.apache.poi.xssf.XSSFTestDataSamples;
 import org.junit.Test;
 
 /**
@@ -151,4 +153,13 @@ public class TestDecryptor {
         zis.close();
         fs.close();
     }
+
+    @Test
+    public void test58616() throws IOException, GeneralSecurityException {
+        POIFSFileSystem pfs = new POIFSFileSystem(new FileInputStream(XSSFTestDataSamples.getSampleFile("58616.xlsx")));                
+        EncryptionInfo info = new EncryptionInfo(pfs);             
+        Decryptor dec = Decryptor.getInstance(info);   
+        //dec.verifyPassword(null);
+        dec.getDataStream(pfs);
+    }
 }