/// <summary>
/// Opens the book asynchronously without reading its content. Holds the handle to the EPUB file.
/// </summary>
/// <param name="filePath">path to the EPUB file</param>
/// <returns></returns>
public static async Task <EpubBookRef> OpenBookAsync(string filePath)
{
if (UrlUtils.FileIsUrl(filePath))
{
var localFilePath = await UrlUtils.UrlToFile(filePath);
if (string.IsNullOrEmpty(localFilePath))
{
throw new FileNotFoundException("Specified remote ePub file could not be downloaded to local filesystem.", filePath);
}
filePath = localFilePath;
}
if (!File.Exists(filePath))
{
throw new FileNotFoundException("Specified local ePub file not found.", filePath);
}
ZipArchive epubArchive = ZipFile.OpenRead(filePath);
EpubBookRef bookRef = new EpubBookRef(epubArchive);
bookRef.FilePath = filePath;
bookRef.Schema = await SchemaReader.ReadSchemaAsync(epubArchive).ConfigureAwait(false);
bookRef.Title = bookRef.Schema.Package.Metadata.Titles.FirstOrDefault() ?? String.Empty;
bookRef.AuthorList = bookRef.Schema.Package.Metadata.Creators.Select(creator => creator.Creator).ToList();
bookRef.Author = String.Join(", ", bookRef.AuthorList);
bookRef.Content = await Task.Run(() => ContentReader.ParseContentMap(bookRef)).ConfigureAwait(false);
return(bookRef);
}
/// <summary>
/// Opens the book asynchronously and reads all of its content into the memory. Does not hold the handle to the EPUB file.
/// </summary>
/// <param name="filePath">path to the EPUB file</param>
/// <returns></returns>
public static async Task <EpubBook> ReadBookAsync(string filePath)
{
EpubBook result = new EpubBook();
using (EpubBookRef epubBookRef = await OpenBookAsync(filePath).ConfigureAwait(false))
{
result.FilePath = epubBookRef.FilePath;
result.Schema = epubBookRef.Schema;
result.Title = epubBookRef.Title;
result.AuthorList = epubBookRef.AuthorList;
result.Author = epubBookRef.Author;
result.Content = await ReadContent(epubBookRef.Content).ConfigureAwait(false);
result.CoverImage = await epubBookRef.ReadCoverAsync().ConfigureAwait(false);
List <EpubChapterRef> chapterRefs = await epubBookRef.GetChaptersAsync().ConfigureAwait(false);
result.Chapters = await ReadChapters(chapterRefs).ConfigureAwait(false);
}
return(result);
}
public EpubContentFileRef(EpubBookRef epubBookRef)
{
this.epubBookRef = epubBookRef;
}
public EpubByteContentFileRef(EpubBookRef epubBookRef)
: base(epubBookRef)
{
}
public EpubTextContentFileRef(EpubBookRef epubBookRef)
: base(epubBookRef)
{
}