Esempio n. 1
0
        public virtual void PrimitivesTest()
        {
            String data = "<</Size 70." + "/Value#20 .1" + "/Root 46 0 R" + "/Info 44 0 R" + "/ID[<736f6d652068657820737472696e672>(some simple string )<8C2547D58D4BD2C6F3D32B830BE3259D2>-70.1--0.2]"
                          + "/Name1 --15" + "/Prev ---116.23 >>";
            RandomAccessSourceFactory factory = new RandomAccessSourceFactory();
            PdfTokenizer tok = new PdfTokenizer(new RandomAccessFileOrArray(factory.CreateSource(data.GetBytes(iText.IO.Util.EncodingUtil.ISO_8859_1
                                                                                                               ))));

            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.StartDic);
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Name);
            PdfName name = new PdfName(tok.GetByteContent());

            NUnit.Framework.Assert.AreEqual("Size", name.GetValue());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Number);
            PdfNumber num = new PdfNumber(tok.GetByteContent());

            NUnit.Framework.Assert.AreEqual("70.", num.ToString());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Name);
            name = new PdfName(tok.GetByteContent());
            NUnit.Framework.Assert.AreEqual("Value ", name.GetValue());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Number);
            num = new PdfNumber(tok.GetByteContent());
            NUnit.Framework.Assert.AreNotSame("0.1", num.ToString());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Name);
            name = new PdfName(tok.GetByteContent());
            NUnit.Framework.Assert.AreEqual("Root", name.GetValue());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Ref);
            PdfIndirectReference @ref = new PdfIndirectReference(null, tok.GetObjNr(), tok.GetGenNr());

            NUnit.Framework.Assert.AreEqual("46 0 R", @ref.ToString());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Name);
            name = new PdfName(tok.GetByteContent());
            NUnit.Framework.Assert.AreEqual("Info", name.GetValue());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Ref);
            @ref = new PdfIndirectReference(null, tok.GetObjNr(), tok.GetGenNr());
            NUnit.Framework.Assert.AreEqual("44 0 R", @ref.ToString());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Name);
            name = new PdfName(tok.GetByteContent());
            NUnit.Framework.Assert.AreEqual("ID", name.GetValue());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.StartArray);
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.String);
            NUnit.Framework.Assert.AreEqual(tok.IsHexString(), true);
            PdfString str = new PdfString(tok.GetByteContent(), tok.IsHexString());

            NUnit.Framework.Assert.AreEqual("some hex string ", str.GetValue());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.String);
            NUnit.Framework.Assert.AreEqual(tok.IsHexString(), false);
            str = new PdfString(tok.GetByteContent(), tok.IsHexString());
            NUnit.Framework.Assert.AreEqual("some simple string ", str.GetValue());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.String);
            NUnit.Framework.Assert.AreEqual(tok.IsHexString(), true);
            str = new PdfString(tok.GetByteContent(), tok.IsHexString());
            NUnit.Framework.Assert.AreEqual("\u008C%G\u00D5\u008DK\u00D2\u00C6\u00F3\u00D3+\u0083\u000B\u00E3%\u009D "
                                            , str.GetValue());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Number);
            num = new PdfNumber(tok.GetByteContent());
            NUnit.Framework.Assert.AreEqual("-70.1", num.ToString());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Number);
            num = new PdfNumber(tok.GetByteContent());
            NUnit.Framework.Assert.AreEqual("-0.2", num.ToString());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.EndArray);
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Name);
            name = new PdfName(tok.GetByteContent());
            NUnit.Framework.Assert.AreEqual("Name1", name.GetValue());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Number);
            num = new PdfNumber(tok.GetByteContent());
            NUnit.Framework.Assert.AreEqual("0", num.ToString());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Name);
            name = new PdfName(tok.GetByteContent());
            NUnit.Framework.Assert.AreEqual("Prev", name.GetValue());
            tok.NextValidToken();
            NUnit.Framework.Assert.AreEqual(tok.GetTokenType(), PdfTokenizer.TokenType.Number);
            num = new PdfNumber(tok.GetByteContent());
            NUnit.Framework.Assert.AreEqual("-116.23", num.ToString());
        }
Esempio n. 2
0
        private void Write(PdfStream pdfStream)
        {
            try {
                bool userDefinedCompression = pdfStream.GetCompressionLevel() != CompressionConstants.UNDEFINED_COMPRESSION;
                if (!userDefinedCompression)
                {
                    int defaultCompressionLevel = document != null?document.GetWriter().GetCompressionLevel() : CompressionConstants
                                                      .DEFAULT_COMPRESSION;

                    pdfStream.SetCompressionLevel(defaultCompressionLevel);
                }
                bool toCompress       = pdfStream.GetCompressionLevel() != CompressionConstants.NO_COMPRESSION;
                bool allowCompression = !pdfStream.ContainsKey(PdfName.Filter) && IsNotMetadataPdfStream(pdfStream);
                if (pdfStream.GetInputStream() != null)
                {
                    Stream fout = this;
                    DeflaterOutputStream   def = null;
                    OutputStreamEncryption ose = null;
                    if (crypto != null && !crypto.IsEmbeddedFilesOnly())
                    {
                        fout = ose = crypto.GetEncryptionStream(fout);
                    }
                    if (toCompress && (allowCompression || userDefinedCompression))
                    {
                        UpdateCompressionFilter(pdfStream);
                        fout = def = new DeflaterOutputStream(fout, pdfStream.GetCompressionLevel(), 0x8000);
                    }
                    this.Write((PdfDictionary)pdfStream);
                    WriteBytes(iText.Kernel.Pdf.PdfOutputStream.stream);
                    long   beginStreamContent = GetCurrentPos();
                    byte[] buf = new byte[4192];
                    while (true)
                    {
                        int n = pdfStream.GetInputStream().Read(buf);
                        if (n <= 0)
                        {
                            break;
                        }
                        fout.Write(buf, 0, n);
                    }
                    if (def != null)
                    {
                        def.Finish();
                    }
                    if (ose != null)
                    {
                        ose.Finish();
                    }
                    PdfNumber length = pdfStream.GetAsNumber(PdfName.Length);
                    length.SetValue((int)(GetCurrentPos() - beginStreamContent));
                    pdfStream.UpdateLength(length.IntValue());
                    WriteBytes(iText.Kernel.Pdf.PdfOutputStream.endstream);
                }
                else
                {
                    //When document is opened in stamping mode the output stream can be uninitialized.
                    //We have to initialize it and write all data from streams input to streams output.
                    if (pdfStream.GetOutputStream() == null && pdfStream.GetIndirectReference().GetReader() != null)
                    {
                        // If new specific compression is set for stream,
                        // then compressed stream should be decoded and written with new compression settings
                        byte[] bytes = pdfStream.GetIndirectReference().GetReader().ReadStreamBytes(pdfStream, false);
                        if (userDefinedCompression)
                        {
                            bytes = DecodeFlateBytes(pdfStream, bytes);
                        }
                        pdfStream.InitOutputStream(new ByteArrayOutputStream(bytes.Length));
                        pdfStream.GetOutputStream().Write(bytes);
                    }
                    System.Diagnostics.Debug.Assert(pdfStream.GetOutputStream() != null, "PdfStream lost OutputStream");
                    ByteArrayOutputStream byteArrayStream;
                    try {
                        if (toCompress && !ContainsFlateFilter(pdfStream) && (allowCompression || userDefinedCompression))
                        {
                            // compress
                            UpdateCompressionFilter(pdfStream);
                            byteArrayStream = new ByteArrayOutputStream();
                            DeflaterOutputStream zip = new DeflaterOutputStream(byteArrayStream, pdfStream.GetCompressionLevel());
                            if (pdfStream is PdfObjectStream)
                            {
                                PdfObjectStream objectStream = (PdfObjectStream)pdfStream;
                                ((ByteArrayOutputStream)objectStream.GetIndexStream().GetOutputStream()).WriteTo(zip);
                                ((ByteArrayOutputStream)objectStream.GetOutputStream().GetOutputStream()).WriteTo(zip);
                            }
                            else
                            {
                                System.Diagnostics.Debug.Assert(pdfStream.GetOutputStream() != null, "Error in outputStream");
                                ((ByteArrayOutputStream)pdfStream.GetOutputStream().GetOutputStream()).WriteTo(zip);
                            }
                            zip.Finish();
                        }
                        else
                        {
                            if (pdfStream is PdfObjectStream)
                            {
                                PdfObjectStream objectStream = (PdfObjectStream)pdfStream;
                                byteArrayStream = new ByteArrayOutputStream();
                                ((ByteArrayOutputStream)objectStream.GetIndexStream().GetOutputStream()).WriteTo(byteArrayStream);
                                ((ByteArrayOutputStream)objectStream.GetOutputStream().GetOutputStream()).WriteTo(byteArrayStream);
                            }
                            else
                            {
                                System.Diagnostics.Debug.Assert(pdfStream.GetOutputStream() != null, "Error in outputStream");
                                byteArrayStream = (ByteArrayOutputStream)pdfStream.GetOutputStream().GetOutputStream();
                            }
                        }
                        if (CheckEncryption(pdfStream))
                        {
                            ByteArrayOutputStream  encodedStream = new ByteArrayOutputStream();
                            OutputStreamEncryption ose           = crypto.GetEncryptionStream(encodedStream);
                            byteArrayStream.WriteTo(ose);
                            ose.Finish();
                            byteArrayStream = encodedStream;
                        }
                    }
                    catch (System.IO.IOException ioe) {
                        throw new PdfException(PdfException.IoException, ioe);
                    }
                    pdfStream.Put(PdfName.Length, new PdfNumber(byteArrayStream.Length));
                    pdfStream.UpdateLength((int)byteArrayStream.Length);
                    this.Write((PdfDictionary)pdfStream);
                    WriteBytes(iText.Kernel.Pdf.PdfOutputStream.stream);
                    byteArrayStream.WriteTo(this);
                    byteArrayStream.Dispose();
                    WriteBytes(iText.Kernel.Pdf.PdfOutputStream.endstream);
                }
            }
            catch (System.IO.IOException e) {
                throw new PdfException(PdfException.CannotWriteToPdfStream, e, pdfStream);
            }
        }