public EpubWriter(EpubBook book)
{
if (book == null)
{
throw new ArgumentNullException(nameof(book));
}
if (book.Format?.Opf == null)
{
throw new ArgumentException("book opf instance == null", nameof(book));
}
format = book.Format;
resources = book.Resources;
opfPath = format.Ocf.RootFilePath;
ncxPath = format.Opf.FindNcxPath();
if (ncxPath != null)
{
// Remove NCX file from the resources - Write() will format a new one.
resources.Other = resources.Other.Where(e => e.FileName != ncxPath).ToList();
ncxPath = PathExt.Combine(PathExt.GetDirectoryPath(opfPath), ncxPath);
}
}
public EpubWriter()
{
var opf = new OpfDocument {
EpubVersion = EpubVersion.Epub3
};
opf.Metadata.Dates.Add(new OpfMetadataDate {
Text = DateTimeOffset.UtcNow.ToString("o")
});
opf.Manifest.Items.Add(new OpfManifestItem {
Id = "ncx", Href = "toc.ncx", MediaType = ContentType.ContentTypeToMimeType[EpubContentType.DtbookNcx]
});
opf.Spine.Toc = "ncx";
format = new EpubFormat
{
Opf = opf,
Nav = new NavDocument(),
Ncx = new NcxDocument()
};
format.Nav.Head.Dom = new XElement(NavElements.Head);
format.Nav.Body.Dom =
new XElement(
NavElements.Body,
new XElement(NavElements.Nav, new XAttribute(NavNav.Attributes.Type, NavNav.Attributes.TypeValues.Toc),
new XElement(NavElements.Ol)));
resources = new EpubResources();
}
private static EpubResources LoadResources(ZipArchive epubArchive, EpubBook book)
{
var resources = new EpubResources();
foreach (var item in book.Format.Opf.Manifest.Items)
{
var path = PathExt.Combine(Path.GetDirectoryName(book.Format.Ocf.RootFilePath), item.Href);
var entry = epubArchive.GetEntryImproved(path);
if (entry == null)
{
throw new EpubParseException($"file {path} not found in archive.");
}
if (entry.Length > int.MaxValue)
{
throw new EpubParseException($"file {path} is bigger than 2 Gb.");
}
var fileName = item.Href;
var mimeType = item.MediaType;
EpubContentType contentType;
contentType = ContentType.MimeTypeToContentType.TryGetValue(mimeType, out contentType)
? contentType
: EpubContentType.Other;
switch (contentType)
{
case EpubContentType.Xhtml11:
case EpubContentType.Css:
case EpubContentType.Oeb1Document:
case EpubContentType.Oeb1Css:
case EpubContentType.Xml:
case EpubContentType.Dtbook:
case EpubContentType.DtbookNcx:
{
var file = new EpubTextFile
{
FileName = fileName,
MimeType = mimeType,
ContentType = contentType
};
using (var stream = entry.Open())
{
file.Content = stream.ReadToEnd();
}
switch (contentType)
{
case EpubContentType.Xhtml11:
resources.Html.Add(file);
break;
case EpubContentType.Css:
resources.Css.Add(file);
break;
default:
resources.Other.Add(file);
break;
}
break;
}
default:
{
var file = new EpubByteFile
{
FileName = fileName,
MimeType = mimeType,
ContentType = contentType
};
using (var stream = entry.Open())
{
if (stream == null)
{
throw new EpubException($"Incorrect EPUB file: content file \"{fileName}\" specified in manifest is not found");
}
using (var memoryStream = new MemoryStream((int)entry.Length))
{
stream.CopyTo(memoryStream);
file.Content = memoryStream.ToArray();
}
}
switch (contentType)
{
case EpubContentType.ImageGif:
case EpubContentType.ImageJpeg:
case EpubContentType.ImagePng:
case EpubContentType.ImageSvg:
resources.Images.Add(file);
break;
case EpubContentType.FontTruetype:
case EpubContentType.FontOpentype:
resources.Fonts.Add(file);
break;
default:
resources.Other.Add(file);
break;
}
break;
}
}
}
return(resources);
}
