public async Task <string> GetChapter(Model.Format.Ebook epub, Model.Format.Spine chapter)
{
var filename = epub.Files.Where(o => o.Id == chapter.Idref).First();
var folder = await FileSystem.Current.LocalStorage.GetFolderAsync(epub.Folder);
return(await _fileService.ReadFileData($"{epub.ContentBasePath}{filename.Href}", folder));
}
public Book CreateBookshelfBook(Model.Format.Ebook book)
{
return(new Book {
Title = book.Title,
Path = book.Folder,
Cover = book.Cover,
Format = Model.Format.EbookFormat.Epub,
});
}
public async Task <Model.EpubLoader.HtmlResult> PrepareHTML(string html, Model.Format.Ebook epub, Model.Format.File chapter)
{
var doc = new HtmlDocument();
doc.LoadHtml(html);
this.StripHtmlTags(doc);
var images = await this.PrepareHtmlImages(doc, epub, chapter);
var result = new Model.EpubLoader.HtmlResult {
Html = doc.DocumentNode.Descendants("body").First().InnerHtml,
Images = images,
};
return(result);
}
public async Task <Model.Format.Ebook> OpenBook(string path)
{
var epubFolder = await FileSystem.Current.LocalStorage.GetFolderAsync(path);
var contentFilePath = await this.GetContentFilePath(epubFolder);
var contentFilePathParts = contentFilePath.Split('/');
var contentBasePath = string.Join("/", contentFilePathParts.Take(contentFilePathParts.Length - 1));
if (!string.IsNullOrEmpty(contentBasePath))
{
contentBasePath += "/";
}
var contentFileData = await _fileService.ReadFileData(contentFilePath, epubFolder);
var xml = XDocument.Parse(contentFileData);
var package = xml.Root;
var epubVersion = this.GetEpubVersion(package);
var epubParser = IocManager.Container.ResolveKeyed <EpubParser>(
epubVersion,
new NamedParameter("package", package),
new NamedParameter("folder", epubFolder),
new NamedParameter("contentBasePath", contentBasePath)
);
var epub = new Model.Format.Ebook()
{
Title = epubParser.GetTitle(),
Author = epubParser.GetAuthor(),
Description = epubParser.GetDescription(),
Language = epubParser.GetLanguage(),
Spines = epubParser.GetSpines(),
Files = epubParser.GetFiles(),
Folder = path,
ContentBasePath = contentBasePath,
Navigation = await epubParser.GetNavigation(),
Cover = epubParser.GetCover()
};
return(epub);
}
private async Task <List <Model.EpubLoader.Image> > ReplaceImagesWithBase64(List <Model.EpubLoader.Image> imagesModel, Model.Format.Ebook epub)
{
var epubFolder = await FileSystem.Current.LocalStorage.GetFolderAsync(epub.Folder);
foreach (var imageModel in imagesModel)
{
var extension = imageModel.FileName.Split('.').Last();
var fileName = PathHelper.NormalizePath($"{epub.ContentBasePath}/{imageModel.FileName.Replace("../", "")}");
var file = await _fileService.OpenFile(fileName, epubFolder);
using (var stream = await file.OpenAsync(PCLStorage.FileAccess.Read)) {
var base64 = Base64Helper.GetFileBase64(stream);
imageModel.Data = $"data:image/{extension};base64,{base64}";
}
}
return(imagesModel);
}
private async Task <List <Model.EpubLoader.Image> > PrepareHtmlImages(HtmlDocument doc, Model.Format.Ebook epub, Model.Format.File chapter)
{
var imagesModel = this.GetImages(doc, chapter);
return(await this.ReplaceImagesWithBase64(imagesModel, epub));
}
