public EpubChapter AddChapter(string title, string html, string fileId = null)
{
if (string.IsNullOrWhiteSpace(title))
{
throw new ArgumentNullException(nameof(title));
}
if (html == null)
{
throw new ArgumentNullException(nameof(html));
}
fileId = fileId ?? Guid.NewGuid().ToString("N");
var file = new EpubTextFile
{
AbsolutePath = fileId + ".html",
Href = fileId + ".html",
TextContent = html,
ContentType = EpubContentType.Xhtml11
};
file.MimeType = ContentType.ContentTypeToMimeType[file.ContentType];
resources.Html.Add(file);
var manifestItem = new OpfManifestItem
{
Id = fileId,
Href = file.Href,
MediaType = file.MimeType
};
format.Opf.Manifest.Items.Add(manifestItem);
var spineItem = new OpfSpineItemRef {
IdRef = manifestItem.Id, Linear = true
};
format.Opf.Spine.ItemRefs.Add(spineItem);
FindNavTocOl()?.Add(new XElement(NavElements.Li, new XElement(NavElements.A, new XAttribute("href", file.Href), title)));
format.Ncx?.NavMap.NavPoints.Add(new NcxNavPoint
{
Id = Guid.NewGuid().ToString("N"),
NavLabelText = title,
ContentSrc = file.Href,
PlayOrder = format.Ncx.NavMap.NavPoints.Any() ? format.Ncx.NavMap.NavPoints.Max(e => e.PlayOrder) : 1
});
return(new EpubChapter
{
Id = fileId,
Title = title,
RelativePath = file.AbsolutePath
});
}
private static EpubResources LoadResources(ZipArchive epubArchive, EpubBook book)
{
var resources = new EpubResources();
foreach (var item in book.Format.Opf.Manifest.Items)
{
var path = item.Href.ToAbsolutePath(book.Format.Paths.OpfAbsolutePath);
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 href = 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
{
AbsolutePath = path,
Href = href,
MimeType = mimeType,
ContentType = contentType
};
resources.All.Add(file);
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
{
AbsolutePath = path,
Href = href,
MimeType = mimeType,
ContentType = contentType
};
resources.All.Add(file);
using (var stream = entry.Open())
{
if (stream == null)
{
throw new EpubException($"Incorrect EPUB file: content file \"{href}\" 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:
case EpubContentType.ImageBmp:
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);
}