Examples of org.apache.poi.poifs.filesystem.NPOIFSFileSystem

org.apache.poi.poifs.filesystem.NPOIFSFileSystem
This is the main class of the POIFS system; it manages the entire life cycle of the filesystem. This is the new NIO version

    @Test
    public void testStandardEncryption() throws Exception {
        File file = POIDataSamples.getDocumentInstance().getFile("bug53475-password-is-solrcell.docx");
        String pass = "solrcell";
        
        NPOIFSFileSystem nfs = new NPOIFSFileSystem(file);


        // Check the encryption details
        EncryptionInfo infoExpected = new EncryptionInfo(nfs);
        Decryptor d = Decryptor.getInstance(infoExpected);
        boolean passed = d.verifyPassword(pass);
        assertTrue("Unable to process: document is encrypted", passed);


        // extract the payload
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        InputStream is = d.getDataStream(nfs);
        IOUtils.copy(is, bos);
        is.close();
        nfs.close();
        byte payloadExpected[] = bos.toByteArray();
        
        // check that same verifier/salt lead to same hashes
        byte verifierSaltExpected[] = infoExpected.getVerifier().getSalt();
        byte verifierExpected[] = d.getVerifier();
        byte keySpec[] = d.getSecretKey().getEncoded();
        byte keySalt[] = infoExpected.getHeader().getKeySalt();
        
        
        POIFSFileSystem fs = new POIFSFileSystem();
        EncryptionInfo infoActual = new EncryptionInfo(
              fs, EncryptionMode.standard
            , infoExpected.getVerifier().getCipherAlgorithm()
            , infoExpected.getVerifier().getHashAlgorithm()
            , infoExpected.getHeader().getKeySize()
            , infoExpected.getHeader().getBlockSize()
            , infoExpected.getVerifier().getChainingMode()
        );
        
        Encryptor e = Encryptor.getInstance(infoActual);
        e.confirmPassword(pass, keySpec, keySalt, verifierExpected, verifierSaltExpected, null);
        
        assertThat(infoExpected.getVerifier().getEncryptedVerifier(), equalTo(infoActual.getVerifier().getEncryptedVerifier()));
        assertThat(infoExpected.getVerifier().getEncryptedVerifierHash(), equalTo(infoActual.getVerifier().getEncryptedVerifierHash()));


        // now we use a newly generated salt/verifier and check
        // if the file content is still the same 


        fs = new POIFSFileSystem();
        infoActual = new EncryptionInfo(
              fs, EncryptionMode.standard
            , infoExpected.getVerifier().getCipherAlgorithm()
            , infoExpected.getVerifier().getHashAlgorithm()
            , infoExpected.getHeader().getKeySize()
            , infoExpected.getHeader().getBlockSize()
            , infoExpected.getVerifier().getChainingMode()
        );
        
        e = Encryptor.getInstance(infoActual);
        e.confirmPassword(pass);
        
        OutputStream os = e.getDataStream(fs);
        IOUtils.copy(new ByteArrayInputStream(payloadExpected), os);
        os.close();
        
        bos.reset();
        fs.writeFilesystem(bos);


        ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
        
        // FileOutputStream fos = new FileOutputStream("encrypted.docx");
        // IOUtils.copy(bis, fos);
        // fos.close();
        // bis.reset();
        
        nfs = new NPOIFSFileSystem(bis);
        infoExpected = new EncryptionInfo(nfs);
        d = Decryptor.getInstance(infoExpected);
        passed = d.verifyPassword(pass);
        assertTrue("Unable to process: document is encrypted", passed);


        bos.reset();
        is = d.getDataStream(nfs);
        IOUtils.copy(is, bos);
        is.close();
        nfs.close();
        byte payloadActual[] = bos.toByteArray();        
        
        assertThat(payloadExpected, equalTo(payloadActual));
    }

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        InputStream fis = POIDataSamples.getPOIFSInstance().openResourceAsStream("protected_agile.docx");
        IOUtils.copy(fis, fos);
        fis.close();
        fos.close();
        
        NPOIFSFileSystem fs = new NPOIFSFileSystem(f, false);


        // decrypt the protected file - in this case it was encrypted with the default password
        EncryptionInfo encInfo = new EncryptionInfo(fs);
        Decryptor d = encInfo.getDecryptor();
        boolean b = d.verifyPassword(Decryptor.DEFAULT_PASSWORD);
        assertTrue(b);


        // do some strange things with it ;)
        XWPFDocument docx = new XWPFDocument(d.getDataStream(fs));
        docx.getParagraphArray(0).insertNewRun(0).setText("POI was here! All your base are belong to us!");
        docx.getParagraphArray(0).insertNewRun(1).addBreak();


        // and encrypt it again
        Encryptor e = encInfo.getEncryptor();
        e.confirmPassword("AYBABTU");
        docx.write(e.getDataStream(fs));
        
        fs.close();
    }

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     if(! file.exists()) {
        throw new FileNotFoundException(file.toString());
     }
     
     try {
        NPOIFSFileSystem fs = new NPOIFSFileSystem(file);
        return new HSSFWorkbook(fs.getRoot(), true);
     } catch(OfficeXmlFileException e) {
        OPCPackage pkg = OPCPackage.openOrCreate(file);
        return new XSSFWorkbook(pkg);
     }
  }

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    public void bug51461() throws Exception {
       byte[] data = HSSFITestDataProvider.instance.getTestDataFileContent("51461.xls");
       
       HSSFWorkbook wbPOIFS = new HSSFWorkbook(new POIFSFileSystem(
             new ByteArrayInputStream(data)).getRoot(), false);
       HSSFWorkbook wbNPOIFS = new HSSFWorkbook(new NPOIFSFileSystem(
             new ByteArrayInputStream(data)).getRoot(), false);
       
       assertEquals(2, wbPOIFS.getNumberOfSheets());
       assertEquals(2, wbNPOIFS.getNumberOfSheets());
    }

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    public void bug51535() throws Exception {
       byte[] data = HSSFITestDataProvider.instance.getTestDataFileContent("51535.xls");
       
       HSSFWorkbook wbPOIFS = new HSSFWorkbook(new POIFSFileSystem(
             new ByteArrayInputStream(data)).getRoot(), false);
       HSSFWorkbook wbNPOIFS = new HSSFWorkbook(new NPOIFSFileSystem(
             new ByteArrayInputStream(data)).getRoot(), false);
       
       for(HSSFWorkbook wb : new HSSFWorkbook[] {wbPOIFS, wbNPOIFS}) {
          assertEquals(3, wb.getNumberOfSheets());

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     *  Encryption options, and no cspname section. See bug 53475
     */
    @Test
    public void bug53475NoCSPName() throws Exception {
        File file = POIDataSamples.getDocumentInstance().getFile("bug53475-password-is-solrcell.docx");
        NPOIFSFileSystem filesystem = new NPOIFSFileSystem(file, true);


        // Check the encryption details
        EncryptionInfo info = new EncryptionInfo(filesystem);
        assertEquals(128, info.getHeader().getKeySize());
        assertEquals(CipherAlgorithm.aes128, info.getHeader().getCipherAlgorithm());
        assertEquals(HashAlgorithm.sha1, info.getHeader().getHashAlgorithmEx());


        // Check it can be decoded
        Decryptor d = Decryptor.getInstance(info);    
        assertTrue("Unable to process: document is encrypted", d.verifyPassword("solrcell"));


        // Check we can read the word document in that
        InputStream dataStream = d.getDataStream(filesystem);
        OPCPackage opc = OPCPackage.open(dataStream);
        XWPFDocument doc = new XWPFDocument(opc);
        XWPFWordExtractor ex = new XWPFWordExtractor(doc);
        String text = ex.getText();
        assertNotNull(text);
        assertEquals("This is password protected Word document.", text.trim());
        ex.close();
        
        filesystem.close();
    }

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    public void bug53475_aes256() throws Exception {
        int maxKeyLen = Cipher.getMaxAllowedKeyLength("AES");
        Assume.assumeTrue("Please install JCE Unlimited Strength Jurisdiction Policy files for AES 256", maxKeyLen == 2147483647);


        File file = POIDataSamples.getDocumentInstance().getFile("bug53475-password-is-pass.docx");
        NPOIFSFileSystem filesystem = new NPOIFSFileSystem(file, true);


        // Check the encryption details
        EncryptionInfo info = new EncryptionInfo(filesystem);
        assertEquals(16, info.getHeader().getBlockSize());
        assertEquals(256, info.getHeader().getKeySize());
        assertEquals(CipherAlgorithm.aes256, info.getHeader().getCipherAlgorithm());
        assertEquals(HashAlgorithm.sha1, info.getHeader().getHashAlgorithmEx());


        // Check it can be decoded
        Decryptor d = Decryptor.getInstance(info);    
        assertTrue("Unable to process: document is encrypted", d.verifyPassword("pass"));


        // Check we can read the word document in that
        InputStream dataStream = d.getDataStream(filesystem);
        OPCPackage opc = OPCPackage.open(dataStream);
        XWPFDocument doc = new XWPFDocument(opc);
        XWPFWordExtractor ex = new XWPFWordExtractor(doc);
        String text = ex.getText();
        assertNotNull(text);
        // I know ... a stupid typo, maybe next time ...
        assertEquals("The is a password protected document.", text.trim());
        ex.close();
        
        filesystem.close();
    }

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    * Constructor for reading MSG Files from an input stream.
    * @param in
    * @throws IOException
    */
   public MAPIMessage(InputStream in) throws IOException {
      this(new NPOIFSFileSystem(in));
   }

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   }
   
   public static void main(String[] args) throws Exception {
      for(String filename : args) {
         OutlookTextExtactor extractor = new OutlookTextExtactor(
               new NPOIFSFileSystem(new File(filename))
         );
         System.out.println( extractor.getText() );
      }
   }

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        if (! file.exists()) {
            throw new FileNotFoundException(file.toString());
        }


        try {
            @SuppressWarnings("resource")
            NPOIFSFileSystem fs = new NPOIFSFileSystem(file);
            return new HSSFWorkbook(fs.getRoot(), true);
        } catch(OfficeXmlFileException e) {
            OPCPackage pkg = OPCPackage.open(file);
            return new XSSFWorkbook(pkg);
        }
    }

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org.apache.poi.hpbf.extractor.TestPublisherTextExtractor

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