public static HwpV3AdditionalBlock Create(BinaryReader reader)
{
HwpV3AdditionalBlock result = new HwpV3AdditionalBlock();
result.BlockType = 1;
result.ID = reader.ReadDWord();
result.Length = reader.ReadDWord();
if (result.ID == 0u && result.Length == 0u)
{
return(result);
}
result.Content = reader.ReadBytes((int)result.Length);
return(result);
}
public static HwpV3Document Load(string filePath)
{
HwpV3Document doc = new HwpV3Document();
using (Stream file = File.OpenRead(filePath))
using (BinaryReader reader = new BinaryReader(file))
{
doc.Signature = HwpV3DocumentSignature.Create(reader);
doc.Information = HwpV3DocumentInformation.Create(reader);
doc.Summary = HwpV3DocumentSummary.Create(reader);
doc.InformationBlocks = HwpV3DocumentInformationBlockCollection.Create(reader, doc.Information);
bool requireDecompress = ((int)doc.Information.Compressed != 0);
MemoryStream extractedFile = new MemoryStream();
byte[] buffer = new byte[64000];
int read = 0;
if (requireDecompress)
{
using (DeflateStream deflateStream = new DeflateStream(file, CompressionMode.Decompress, true))
{
while ((read = deflateStream.Read(buffer, 0, buffer.Length)) > 0)
{
extractedFile.Write(buffer, 0, read);
}
}
}
else
{
while ((read = file.Read(buffer, 0, buffer.Length)) > 0)
{
extractedFile.Write(buffer, 0, read);
}
}
extractedFile.Seek(0L, SeekOrigin.Begin);
using (extractedFile)
using (BinaryReader subReader = new BinaryReader(extractedFile))
{
doc.FontNames = HwpV3FontNames.Create(subReader);
doc.Styles = HwpV3DocumentStyleCollection.Create(subReader);
doc.Paragraph = HwpV3Paragraph.Create(subReader);
doc.AdditionalBlock1 = HwpV3AdditionalBlock.Create(subReader);
uint additionalBlock2Size = 0u;
bool hasAdditionalBlock2 = false;
BinaryReader target = (requireDecompress ? reader : subReader);
target.BaseStream.Seek(-8, SeekOrigin.End);
uint id = target.ReadDWord();
if (id == 0u)
{
additionalBlock2Size = target.ReadDWord();
if (additionalBlock2Size != 0u)
{
hasAdditionalBlock2 = true;
}
}
if (hasAdditionalBlock2)
{
target.BaseStream.Position = target.BaseStream.Length - additionalBlock2Size;
doc.AdditionalBlock2 = HwpV3AdditionalBlock.Create(reader);
}
}
return(doc);
}
}