Examples with HSLFSlideShowImpl org.apache.poi.hslf.usermodel.HSLFSlideShowImpl used on opensource projects

Example 26 with HSLFSlideShowImpl

use of org.apache.poi.hslf.usermodel.HSLFSlideShowImpl in project poi by apache.

the class TestDocumentEncryption method cryptoAPIDecryption.

@Test
public void cryptoAPIDecryption() throws Exception {
    // taken from a msdn blog:
    // http://blogs.msdn.com/b/openspecification/archive/2009/05/08/dominic-salemno.aspx
    Biff8EncryptionKey.setCurrentUserPassword("crypto");
    NPOIFSFileSystem fs = new NPOIFSFileSystem(slTests.getFile("cryptoapi-proc2356.ppt"));
    HSLFSlideShowImpl hss = new HSLFSlideShowImpl(fs);
    HSLFSlideShow ss = new HSLFSlideShow(hss);
    HSLFSlide slide = ss.getSlides().get(0);
    String rawText = HSLFTextParagraph.getRawText(slide.getTextParagraphs().get(0));
    assertEquals("Dominic Salemno", rawText);
    String[][] picCmp = { { "0", "nKsDTKqxTCR8LFkVVWlP9GSTvZ0=" }, { "95163", "SuNOR+9V1UVYZIoeD65l3VTaLoc=" }, { "100864", "Ql3IGrr4bNq07ZTp5iPg7b+pva8=" }, { "714114", "8pdst9NjBGSfWezSZE8+aVhIRe0=" }, { "723752", "go6xqW7lvkCtlOO5tYLiMfb4oxw=" }, { "770128", "gZUM8YqRNL5kGNfyyYvEEernvCc=" }, { "957958", "CNU2iiqUFAnk3TDXsXV1ihH9eRM=" } };
    MessageDigest md = CryptoFunctions.getMessageDigest(HashAlgorithm.sha1);
    List<HSLFPictureData> pd = hss.getPictureData();
    int i = 0;
    for (HSLFPictureData p : pd) {
        byte[] hash = md.digest(p.getData());
        assertEquals(Integer.parseInt(picCmp[i][0]), p.getOffset());
        assertEquals(picCmp[i][1], Base64.encodeBase64String(hash));
        i++;
    }
    DocumentEncryptionAtom dea = hss.getDocumentEncryptionAtom();
    POIFSFileSystem fs2 = ((CryptoAPIDecryptor) dea.getEncryptionInfo().getDecryptor()).getSummaryEntries(fs.getRoot(), "EncryptedSummary");
    PropertySet ps = PropertySetFactory.create(fs2.getRoot(), SummaryInformation.DEFAULT_STREAM_NAME);
    assertTrue(ps.isSummaryInformation());
    assertEquals("RC4 CryptoAPI Encryption", ps.getProperties()[1].getValue());
    ps = PropertySetFactory.create(fs2.getRoot(), DocumentSummaryInformation.DEFAULT_STREAM_NAME);
    assertTrue(ps.isDocumentSummaryInformation());
    assertEquals("On-screen Show (4:3)", ps.getProperties()[1].getValue());
    ss.close();
    fs.close();
    fs2.close();
}

Example 27 with HSLFSlideShowImpl

use of org.apache.poi.hslf.usermodel.HSLFSlideShowImpl in project poi by apache.

the class TestDocumentEncryption method cryptoAPIEncryption.

@Test
public void cryptoAPIEncryption() throws Exception {
    /* documents with multiple edits need to be normalized for encryption */
    String pptFile = "57272_corrupted_usereditatom.ppt";
    NPOIFSFileSystem fs = new NPOIFSFileSystem(slTests.getFile(pptFile), true);
    HSLFSlideShowImpl hss = new HSLFSlideShowImpl(fs);
    hss.normalizeRecords();
    // normalized ppt
    ByteArrayOutputStream expected = new ByteArrayOutputStream();
    hss.write(expected);
    // encrypted
    Biff8EncryptionKey.setCurrentUserPassword("hello");
    ByteArrayOutputStream encrypted = new ByteArrayOutputStream();
    hss.write(encrypted);
    hss.close();
    fs.close();
    // decrypted
    ByteArrayInputStream bis = new ByteArrayInputStream(encrypted.toByteArray());
    fs = new NPOIFSFileSystem(bis);
    hss = new HSLFSlideShowImpl(fs);
    Biff8EncryptionKey.setCurrentUserPassword(null);
    ByteArrayOutputStream actual = new ByteArrayOutputStream();
    hss.write(actual);
    hss.close();
    fs.close();
    assertArrayEquals(expected.toByteArray(), actual.toByteArray());
}