jellyfin/jellyfin-plugin-bookshelf
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Improve title handling of epub files

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A epub file may contain multiple titles. As Jellyfin only supports one
title, we want to make sure it is the main title.

Additionally, the title_sort attribute is read in.
This commit is contained in:
Patrick Farwick 2023-05-20 23:32:04 +00:00
parent 7106d1d47e
commit d38fa84f04
1 changed files with 58 additions and 1 deletions
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59
Jellyfin.Plugin.Bookshelf/Providers/OpfReader.cs
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@ -118,7 +118,9 @@ namespace Jellyfin.Plugin.Bookshelf.Providers
{
var book = new Book();
ReadStringInto("//dc:title", title => book.Name = title);
book.Name = FindMainTitle();
book.ForcedSortName = FindSortTitle();
ReadStringInto("//dc:description", summary => book.Overview = summary);
ReadStringInto("//dc:publisher", publisher => book.AddStudio(publisher));
ReadStringInto("//dc:identifier[@opf:scheme='ISBN']", isbn => book.SetProviderId("ISBN", isbn));
@ -164,6 +166,61 @@ namespace Jellyfin.Plugin.Bookshelf.Providers
return book;
}
private string FindMainTitle()
{
string title = string.Empty;
var titleTypes = _document.SelectNodes("//opf:meta[@property='title-type']", _namespaceManager);
if (titleTypes is not null && titleTypes.Count > 0)
{
foreach (XmlElement titleNode in titleTypes)
{
string refines = titleNode.GetAttribute("refines").TrimStart('#');
string titleType = titleNode.InnerText;
var titleElement = _document.SelectSingleNode($"//dc:title[@id='{refines}']", _namespaceManager);
if (titleElement is not null && titleType is "main")
{
title = titleElement.InnerText;
}
}
}
// fallback in case there is no main title definition
if (string.IsNullOrEmpty(title))
{
ReadStringInto("//dc:title", titleStr => title = titleStr);
}
return title;
}
private string? FindSortTitle()
{
var titleTypes = _document.SelectNodes("//opf:meta[@property='file-as']", _namespaceManager);
if (titleTypes is not null && titleTypes.Count > 0)
{
foreach (XmlElement titleNode in titleTypes)
{
string refines = titleNode.GetAttribute("refines").TrimStart('#');
string sortTitle = titleNode.InnerText;
var titleElement = _document.SelectSingleNode($"//dc:title[@id='{refines}']", _namespaceManager);
if (titleElement is not null)
{
return sortTitle;
}
}
}
// look for OPF 2.0 style title_sort
var resultElement = _document.SelectSingleNode("//opf:meta[@name='calibre:title_sort']", _namespaceManager);
var titleSort = resultElement?.Attributes?["content"]?.Value;
return titleSort;
}
private void ReadStringInto(string xPath, Action<string> commitResult)
{
var resultElement = _document.SelectSingleNode(xPath, _namespaceManager);