poi/src/testcases/org/apache/poi/hssf/usermodel/TestOLE2Embeding.java

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package org.apache.poi.hssf.usermodel;

import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;

import org.apache.poi.POIDataSamples;
import org.apache.poi.hssf.HSSFTestDataSamples;
import org.apache.poi.poifs.filesystem.DirectoryNode;
import org.apache.poi.poifs.filesystem.Ole10Native;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.ss.usermodel.ClientAnchor.AnchorType;
import org.apache.poi.ss.usermodel.CreationHelper;
import org.apache.poi.util.LocaleUtil;
import org.junit.jupiter.api.Test;

public final class TestOLE2Embeding {

    @Test
    public void testEmbeding() throws Exception {
        // This used to break, until bug #43116 was fixed
        try (HSSFWorkbook workbook = HSSFTestDataSamples.openSampleWorkbook("ole2-embedding.xls")) {
            // Check we can get at the Escher layer still
            assertDoesNotThrow(workbook::getAllPictures);
        }
    }

    @Test
    public void testEmbeddedObjects() throws Exception {
        try (HSSFWorkbook workbook = HSSFTestDataSamples.openSampleWorkbook("ole2-embedding.xls")) {
            List<HSSFObjectData> objects = workbook.getAllEmbeddedObjects();
            assertEquals(2, objects.size(), "Wrong number of objects");
            assertEquals("MBD06CAB431", objects.get(0).getDirectory().getName(), "Wrong name for first object");
            assertEquals("MBD06CAC85A", objects.get(1).getDirectory().getName(), "Wrong name for second object");
        }
    }

    @Test
    public void testReallyEmbedSomething() throws Exception {
    	HSSFWorkbook wb1 = new HSSFWorkbook();
    	HSSFSheet sheet = wb1.createSheet();
    	HSSFPatriarch patriarch = sheet.createDrawingPatriarch();

    	byte[] pictureData = HSSFTestDataSamples.getTestDataFileContent("logoKarmokar4.png");
    	byte[] picturePPT = POIDataSamples.getSlideShowInstance().readFile("clock.jpg");
    	int imgIdx = wb1.addPicture(pictureData, HSSFWorkbook.PICTURE_TYPE_PNG);
    	POIFSFileSystem pptPoifs = getSamplePPT();
    	int pptIdx = wb1.addOlePackage(pptPoifs, "Sample-PPT", "sample.ppt", "sample.ppt");
    	POIFSFileSystem xlsPoifs = getSampleXLS();
    	int imgPPT = wb1.addPicture(picturePPT, HSSFWorkbook.PICTURE_TYPE_JPEG);
    	int xlsIdx = wb1.addOlePackage(xlsPoifs, "Sample-XLS", "sample.xls", "sample.xls");
    	int txtIdx = wb1.addOlePackage(getSampleTXT(), "Sample-TXT", "sample.txt", "sample.txt");

        int rowoffset = 5;
        int coloffset = 5;

        CreationHelper ch = wb1.getCreationHelper();
        HSSFClientAnchor anchor = (HSSFClientAnchor)ch.createClientAnchor();
        anchor.setAnchor((short)(2+coloffset), 1+rowoffset, 0, 0, (short)(3+coloffset), 5+rowoffset, 0, 0);
        anchor.setAnchorType(AnchorType.DONT_MOVE_AND_RESIZE);

        patriarch.createObjectData(anchor, pptIdx, imgPPT);

        anchor = (HSSFClientAnchor)ch.createClientAnchor();
        anchor.setAnchor((short)(5+coloffset), 1+rowoffset, 0, 0, (short)(6+coloffset), 5+rowoffset, 0, 0);
        anchor.setAnchorType(AnchorType.DONT_MOVE_AND_RESIZE);

        patriarch.createObjectData(anchor, xlsIdx, imgIdx);

        anchor = (HSSFClientAnchor)ch.createClientAnchor();
        anchor.setAnchor((short)(3+coloffset), 10+rowoffset, 0, 0, (short)(5+coloffset), 11+rowoffset, 0, 0);
        anchor.setAnchorType(AnchorType.DONT_MOVE_AND_RESIZE);

        patriarch.createObjectData(anchor, txtIdx, imgIdx);

        anchor = (HSSFClientAnchor)ch.createClientAnchor();
        anchor.setAnchor((short)(1+coloffset), -2+rowoffset, 0, 0, (short)(7+coloffset), 14+rowoffset, 0, 0);
        anchor.setAnchorType(AnchorType.DONT_MOVE_AND_RESIZE);

        HSSFSimpleShape circle = patriarch.createSimpleShape(anchor);
        circle.setShapeType(HSSFSimpleShape.OBJECT_TYPE_OVAL);
        circle.setNoFill(true);

        HSSFWorkbook wb2 = HSSFTestDataSamples.writeOutAndReadBack(wb1);
        wb1.close();

        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        HSSFObjectData od = wb2.getAllEmbeddedObjects().get(0);
        Ole10Native ole10 = Ole10Native.createFromEmbeddedOleObject((DirectoryNode)od.getDirectory());
        bos.reset();
        pptPoifs.writeFilesystem(bos);
        assertArrayEquals(ole10.getDataBuffer(), bos.toByteArray());

        od = wb2.getAllEmbeddedObjects().get(1);
        ole10 = Ole10Native.createFromEmbeddedOleObject((DirectoryNode)od.getDirectory());
        bos.reset();
        xlsPoifs.writeFilesystem(bos);
        assertArrayEquals(ole10.getDataBuffer(), bos.toByteArray());

        od = wb2.getAllEmbeddedObjects().get(2);
        ole10 = Ole10Native.createFromEmbeddedOleObject((DirectoryNode)od.getDirectory());
        assertArrayEquals(ole10.getDataBuffer(), getSampleTXT());

        xlsPoifs.close();
        pptPoifs.close();
        wb2.close();
    }

    static POIFSFileSystem getSamplePPT() throws IOException {
    	// scratchpad classes are not available, so we use something pre-cooked
    	InputStream is = POIDataSamples.getSlideShowInstance().openResourceAsStream("with_textbox.ppt");
    	POIFSFileSystem poifs = new POIFSFileSystem(is);
    	is.close();

        return poifs;
    }

    static POIFSFileSystem getSampleXLS() throws IOException {
        HSSFWorkbook wb = new HSSFWorkbook();
        HSSFSheet sheet = wb.createSheet();
        sheet.createRow(5).createCell(2).setCellValue("yo dawg i herd you like embeddet objekts, so we put a ole in your ole so you can save a file while you save a file");

    	ByteArrayOutputStream bos = new ByteArrayOutputStream();
    	wb.write(bos);
    	wb.close();

        return new POIFSFileSystem(new ByteArrayInputStream(bos.toByteArray()));
    }

    static byte[] getSampleTXT() {
        return "All your base are belong to us".getBytes(LocaleUtil.CHARSET_1252);
    }
}