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/* ====================================================================
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.poi.stress;
import static org.apache.commons.io.output.NullOutputStream.NULL_OUTPUT_STREAM;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assumptions.assumeFalse;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import javax.xml.transform.TransformerException;
import org.apache.commons.io.output.NullPrintStream;
import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
import org.apache.poi.EncryptedDocumentException;
import org.apache.poi.examples.ss.ExcelComparator;
import org.apache.poi.examples.xssf.eventusermodel.FromHowTo;
import org.apache.poi.examples.xssf.eventusermodel.XLSX2CSV;
import org.apache.poi.hssf.record.crypto.Biff8EncryptionKey;
import org.apache.poi.ooxml.POIXMLException;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.openxml4j.exceptions.OLE2NotOfficeXmlFileException;
import org.apache.poi.openxml4j.exceptions.OpenXML4JException;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.poifs.crypt.Decryptor;
import org.apache.poi.poifs.crypt.EncryptionInfo;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.util.IOUtils;
import org.apache.poi.xssf.eventusermodel.XSSFReader;
import org.apache.poi.xssf.extractor.XSSFExportToXml;
import org.apache.poi.xssf.usermodel.XSSFMap;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.jupiter.api.Test;
import org.xml.sax.SAXException;
class XSSFFileHandler extends SpreadsheetHandler {
@Override
public void handleFile(InputStream stream, String path) throws Exception {
// ignore password protected files if password is unknown
String pass = Biff8EncryptionKey.getCurrentUserPassword();
assumeFalse(pass == null && POIXMLDocumentHandler.isEncrypted(stream));
final XSSFWorkbook wb;
// make sure the potentially large byte-array is freed up quickly again
{
UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
IOUtils.copy(stream, out);
if (pass != null) {
POIFSFileSystem poifs = new POIFSFileSystem(out.toInputStream());
EncryptionInfo ei = new EncryptionInfo(poifs);
Decryptor dec = ei.getDecryptor();
try {
boolean b = dec.verifyPassword(pass);
assertTrue( b, "password mismatch" );
} catch (EncryptedDocumentException e) {
String msg = "Export Restrictions in place - please install JCE Unlimited Strength Jurisdiction Policy files";
assumeFalse(msg.equals(e.getMessage()));
throw e;
}
InputStream is = dec.getDataStream(poifs);
out.reset();
IOUtils.copy(is, out);
is.close();
poifs.close();
}
checkXSSFReader(OPCPackage.open(out.toInputStream()));
wb = new XSSFWorkbook(out.toInputStream());
}
// use the combined handler for HSSF/XSSF
handleWorkbook(wb);
// TODO: some documents fail currently...
//XSSFFormulaEvaluator evaluator = new XSSFFormulaEvaluator(wb);
//evaluator.evaluateAll();
// also verify general POIFS-stuff
new POIXMLDocumentHandler().handlePOIXMLDocument(wb);
POIXMLDocumentHandler.cursorRecursive(wb.getCTWorkbook());
for (Sheet sh : wb) {
POIXMLDocumentHandler.cursorRecursive(((XSSFSheet)sh).getCTWorksheet());
}
// and finally ensure that exporting to XML works
exportToXML(wb);
// this allows to trigger a heap-dump at this point to see which memory is still allocated
//HeapDump.dumpHeap("/tmp/poi.hprof", false);
wb.close();
}
private void checkXSSFReader(OPCPackage p) throws IOException, OpenXML4JException {
XSSFReader reader = new XSSFReader(p);
// these can be null...
InputStream sharedStringsData = reader.getSharedStringsData();
if(sharedStringsData != null) {
sharedStringsData.close();
}
reader.getSharedStringsTable();
InputStream stylesData = reader.getStylesData();
if(stylesData != null) {
stylesData.close();
}
reader.getStylesTable();
InputStream themesData = reader.getThemesData();
if(themesData != null) {
themesData.close();
}
assertNotNull(reader.getWorkbookData());
Iterator<InputStream> sheetsData = reader.getSheetsData();
while(sheetsData.hasNext()) {
InputStream str = sheetsData.next();
str.close();
}
}
private void exportToXML(XSSFWorkbook wb) throws SAXException,
TransformerException {
for (XSSFMap map : wb.getCustomXMLMappings()) {
XSSFExportToXml exporter = new XSSFExportToXml(map);
exporter.exportToXML(NULL_OUTPUT_STREAM, true);
}
}
private static final Set<String> EXPECTED_ADDITIONAL_FAILURES = new HashSet<>();
static {
// expected sheet-id not found
// EXPECTED_ADDITIONAL_FAILURES.add("spreadsheet/52348.xlsx");
// EXPECTED_ADDITIONAL_FAILURES.add("spreadsheet/59021.xlsx");
// zip-bomb
EXPECTED_ADDITIONAL_FAILURES.add("spreadsheet/54764.xlsx");
EXPECTED_ADDITIONAL_FAILURES.add("spreadsheet/54764-2.xlsx");
EXPECTED_ADDITIONAL_FAILURES.add("spreadsheet/poc-xmlbomb.xlsx");
EXPECTED_ADDITIONAL_FAILURES.add("spreadsheet/poc-xmlbomb-empty.xlsx");
// strict OOXML
EXPECTED_ADDITIONAL_FAILURES.add("spreadsheet/57914.xlsx");
EXPECTED_ADDITIONAL_FAILURES.add("spreadsheet/SampleSS.strict.xlsx");
EXPECTED_ADDITIONAL_FAILURES.add("spreadsheet/SimpleStrict.xlsx");
EXPECTED_ADDITIONAL_FAILURES.add("spreadsheet/sample.strict.xlsx");
// TODO: good to ignore?
EXPECTED_ADDITIONAL_FAILURES.add("spreadsheet/sample-beta.xlsx");
// corrupt/invalid
EXPECTED_ADDITIONAL_FAILURES.add("openxml4j/invalid.xlsx");
}
@SuppressWarnings("resource")
@Override
public void handleAdditional(File file) throws Exception {
// redirect stdout as the examples often write lots of text
PrintStream oldOut = System.out;
String testFile = file.getParentFile().getName() + "/" + file.getName();
try {
System.setOut(new NullPrintStream());
FromHowTo.main(new String[]{file.getAbsolutePath()});
XLSX2CSV.main(new String[]{file.getAbsolutePath()});
ExcelComparator.main(new String[]{file.getAbsolutePath(), file.getAbsolutePath()});
assertFalse( EXPECTED_ADDITIONAL_FAILURES.contains(testFile), "Expected Extraction to fail for file " + file + " and handler " + this + ", but did not fail!" );
} catch (OLE2NotOfficeXmlFileException e) {
// we have some files that are not actually OOXML and thus cannot be tested here
} catch (IllegalArgumentException | InvalidFormatException | POIXMLException | IOException e) {
if(!EXPECTED_ADDITIONAL_FAILURES.contains(testFile)) {
throw e;
}
} finally {
System.setOut(oldOut);
}
}
// a test-case to test this locally without executing the full TestAllFiles
@Test
void test() throws Exception {
File file = new File("test-data/spreadsheet/ref-56737.xlsx");
try (InputStream stream = new BufferedInputStream(new FileInputStream(file))) {
handleFile(stream, file.getPath());
}
handleExtracting(file);
}
@Test
void testExtracting() throws Exception {
handleExtracting(new File("test-data/spreadsheet/ref-56737.xlsx"));
}
@Test
void testAdditional() throws Exception {
handleAdditional(new File("test-data/spreadsheet/poc-xmlbomb.xlsx"));
}
}
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