using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Xml;
using Jellyfin.Data.Enums;
using Jellyfin.Extensions;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Extensions;
using MediaBrowser.Controller.Playlists;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Entities;
using Microsoft.Extensions.Logging;
namespace MediaBrowser.LocalMetadata.Parsers
{
///
/// Provides a base class for parsing metadata xml.
///
/// Type of item xml parser.
public class BaseItemXmlParser
where T : BaseItem
{
private Dictionary? _validProviderIds;
///
/// Initializes a new instance of the class.
///
/// Instance of the interface.
/// Instance of the interface.
public BaseItemXmlParser(ILogger> logger, IProviderManager providerManager)
{
Logger = logger;
ProviderManager = providerManager;
}
///
/// Gets the logger.
///
protected ILogger> Logger { get; private set; }
///
/// Gets the provider manager.
///
protected IProviderManager ProviderManager { get; private set; }
///
/// Fetches metadata for an item from one xml file.
///
/// The item.
/// The metadata file.
/// The cancellation token.
/// Item is null.
public void Fetch(MetadataResult item, string metadataFile, CancellationToken cancellationToken)
{
ArgumentNullException.ThrowIfNull(item);
ArgumentException.ThrowIfNullOrEmpty(metadataFile);
var settings = new XmlReaderSettings
{
ValidationType = ValidationType.None,
CheckCharacters = false,
IgnoreProcessingInstructions = true,
IgnoreComments = true
};
_validProviderIds = new Dictionary(StringComparer.OrdinalIgnoreCase);
var idInfos = ProviderManager.GetExternalIdInfos(item.Item);
foreach (var info in idInfos)
{
var id = info.Key + "Id";
_validProviderIds.TryAdd(id, info.Key);
}
// Additional Mappings
_validProviderIds.Add("IMDB", "Imdb");
// Fetch(item, metadataFile, settings, Encoding.GetEncoding("ISO-8859-1"), cancellationToken);
Fetch(item, metadataFile, settings, Encoding.UTF8, cancellationToken);
}
///
/// Fetches the specified item.
///
/// The item.
/// The metadata file.
/// The settings.
/// The encoding.
/// The cancellation token.
private void Fetch(MetadataResult item, string metadataFile, XmlReaderSettings settings, Encoding encoding, CancellationToken cancellationToken)
{
item.ResetPeople();
using var fileStream = File.OpenRead(metadataFile);
using var streamReader = new StreamReader(fileStream, encoding);
using var reader = XmlReader.Create(streamReader, settings);
reader.MoveToContent();
reader.Read();
// Loop through each element
while (!reader.EOF && reader.ReadState == ReadState.Interactive)
{
cancellationToken.ThrowIfCancellationRequested();
if (reader.NodeType == XmlNodeType.Element)
{
FetchDataFromXmlNode(reader, item);
}
else
{
reader.Read();
}
}
}
///
/// Fetches metadata from one Xml Element.
///
/// The reader.
/// The item result.
protected virtual void FetchDataFromXmlNode(XmlReader reader, MetadataResult itemResult)
{
var item = itemResult.Item;
switch (reader.Name)
{
case "Added":
if (reader.TryReadDateTime(Logger, out var dateCreated))
{
item.DateCreated = dateCreated;
}
break;
case "OriginalTitle":
item.OriginalTitle = reader.ReadNormalizedString();
break;
case "LocalTitle":
item.Name = reader.ReadNormalizedString();
break;
case "CriticRating":
{
var text = reader.ReadElementContentAsString();
if (float.TryParse(text, CultureInfo.InvariantCulture, out var value))
{
item.CriticRating = value;
}
break;
}
case "SortTitle":
item.ForcedSortName = reader.ReadNormalizedString();
break;
case "Overview":
case "Description":
item.Overview = reader.ReadNormalizedString();
break;
case "Language":
item.PreferredMetadataLanguage = reader.ReadNormalizedString();
break;
case "CountryCode":
item.PreferredMetadataCountryCode = reader.ReadNormalizedString();
break;
case "PlaceOfBirth":
var placeOfBirth = reader.ReadNormalizedString();
if (!string.IsNullOrEmpty(placeOfBirth) && item is Person person)
{
person.ProductionLocations = new[] { placeOfBirth };
}
break;
case "LockedFields":
{
var val = reader.ReadElementContentAsString();
if (!string.IsNullOrWhiteSpace(val))
{
item.LockedFields = val.Split('|').Select(i =>
{
if (Enum.TryParse(i, true, out MetadataField field))
{
return (MetadataField?)field;
}
return null;
}).Where(i => i.HasValue).Select(i => i!.Value).ToArray();
}
break;
}
case "TagLines":
{
if (!reader.IsEmptyElement)
{
using (var subtree = reader.ReadSubtree())
{
FetchFromTaglinesNode(subtree, item);
}
}
else
{
reader.Read();
}
break;
}
case "Countries":
{
if (!reader.IsEmptyElement)
{
reader.Skip();
}
else
{
reader.Read();
}
break;
}
case "ContentRating":
case "MPAARating":
item.OfficialRating = reader.ReadNormalizedString();
break;
case "CustomRating":
item.CustomRating = reader.ReadNormalizedString();
break;
case "RunningTime":
{
var text = reader.ReadElementContentAsString();
if (!string.IsNullOrWhiteSpace(text))
{
if (int.TryParse(text.AsSpan().LeftPart(' '), NumberStyles.Integer, CultureInfo.InvariantCulture, out var runtime))
{
item.RunTimeTicks = TimeSpan.FromMinutes(runtime).Ticks;
}
}
break;
}
case "AspectRatio":
var aspectRatio = reader.ReadNormalizedString();
if (!string.IsNullOrEmpty(aspectRatio) && item is IHasAspectRatio hasAspectRatio)
{
hasAspectRatio.AspectRatio = aspectRatio;
}
break;
case "LockData":
{
var val = reader.ReadElementContentAsString();
if (!string.IsNullOrWhiteSpace(val))
{
item.IsLocked = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
}
break;
}
case "Network":
foreach (var name in reader.GetStringArray())
{
item.AddStudio(name);
}
break;
case "Director":
foreach (var director in reader.GetPersonArray(PersonKind.Director))
{
itemResult.AddPerson(director);
}
break;
case "Writer":
foreach (var writer in reader.GetPersonArray(PersonKind.Writer))
{
itemResult.AddPerson(writer);
}
break;
case "Actors":
foreach (var actor in reader.GetPersonArray(PersonKind.Actor))
{
itemResult.AddPerson(actor);
}
break;
case "GuestStars":
foreach (var guestStar in reader.GetPersonArray(PersonKind.GuestStar))
{
itemResult.AddPerson(guestStar);
}
break;
case "Trailer":
var trailer = reader.ReadNormalizedString();
if (!string.IsNullOrEmpty(trailer))
{
item.AddTrailerUrl(trailer);
}
break;
case "DisplayOrder":
var displayOrder = reader.ReadNormalizedString();
if (!string.IsNullOrEmpty(displayOrder) && item is IHasDisplayOrder hasDisplayOrder)
{
hasDisplayOrder.DisplayOrder = displayOrder;
}
break;
case "Trailers":
{
if (!reader.IsEmptyElement)
{
using var subtree = reader.ReadSubtree();
FetchDataFromTrailersNode(subtree, item);
}
else
{
reader.Read();
}
break;
}
case "ProductionYear":
{
var val = reader.ReadElementContentAsString();
if (!string.IsNullOrWhiteSpace(val))
{
if (int.TryParse(val, out var productionYear) && productionYear > 1850)
{
item.ProductionYear = productionYear;
}
}
break;
}
case "Rating":
case "IMDBrating":
{
var rating = reader.ReadElementContentAsString();
if (!string.IsNullOrWhiteSpace(rating))
{
// All external meta is saving this as '.' for decimal I believe...but just to be sure
if (float.TryParse(rating.Replace(',', '.'), NumberStyles.AllowDecimalPoint, CultureInfo.InvariantCulture, out var val))
{
item.CommunityRating = val;
}
}
break;
}
case "BirthDate":
case "PremiereDate":
case "FirstAired":
if (reader.TryReadDateTimeExact("yyyy-MM-dd", out var firstAired))
{
item.PremiereDate = firstAired;
item.ProductionYear = firstAired.Year;
}
break;
case "DeathDate":
case "EndDate":
if (reader.TryReadDateTimeExact("yyyy-MM-dd", out var endDate))
{
item.EndDate = endDate;
}
break;
case "CollectionNumber":
var tmdbCollection = reader.ReadNormalizedString();
if (!string.IsNullOrEmpty(tmdbCollection))
{
item.SetProviderId(MetadataProvider.TmdbCollection, tmdbCollection);
}
break;
case "Genres":
{
if (!reader.IsEmptyElement)
{
using var subtree = reader.ReadSubtree();
FetchFromGenresNode(subtree, item);
}
else
{
reader.Read();
}
break;
}
case "Tags":
{
if (!reader.IsEmptyElement)
{
using var subtree = reader.ReadSubtree();
FetchFromTagsNode(subtree, item);
}
else
{
reader.Read();
}
break;
}
case "Persons":
{
if (!reader.IsEmptyElement)
{
using var subtree = reader.ReadSubtree();
FetchDataFromPersonsNode(subtree, itemResult);
}
else
{
reader.Read();
}
break;
}
case "Studios":
{
if (!reader.IsEmptyElement)
{
using var subtree = reader.ReadSubtree();
FetchFromStudiosNode(subtree, item);
}
else
{
reader.Read();
}
break;
}
case "Shares":
{
if (!reader.IsEmptyElement)
{
using var subtree = reader.ReadSubtree();
if (item is IHasShares hasShares)
{
FetchFromSharesNode(subtree, hasShares);
}
}
else
{
reader.Read();
}
break;
}
case "OwnerUserId":
{
var val = reader.ReadElementContentAsString();
if (Guid.TryParse(val, out var guid) && !guid.Equals(Guid.Empty))
{
if (item is Playlist playlist)
{
playlist.OwnerUserId = guid;
}
}
break;
}
case "Format3D":
{
var val = reader.ReadElementContentAsString();
if (item is Video video)
{
if (string.Equals("HSBS", val, StringComparison.OrdinalIgnoreCase))
{
video.Video3DFormat = Video3DFormat.HalfSideBySide;
}
else if (string.Equals("HTAB", val, StringComparison.OrdinalIgnoreCase))
{
video.Video3DFormat = Video3DFormat.HalfTopAndBottom;
}
else if (string.Equals("FTAB", val, StringComparison.OrdinalIgnoreCase))
{
video.Video3DFormat = Video3DFormat.FullTopAndBottom;
}
else if (string.Equals("FSBS", val, StringComparison.OrdinalIgnoreCase))
{
video.Video3DFormat = Video3DFormat.FullSideBySide;
}
else if (string.Equals("MVC", val, StringComparison.OrdinalIgnoreCase))
{
video.Video3DFormat = Video3DFormat.MVC;
}
}
break;
}
default:
{
string readerName = reader.Name;
if (_validProviderIds!.TryGetValue(readerName, out string? providerIdValue))
{
var id = reader.ReadElementContentAsString();
if (!string.IsNullOrWhiteSpace(id))
{
item.SetProviderId(providerIdValue, id);
}
}
else
{
reader.Skip();
}
break;
}
}
}
private void FetchFromSharesNode(XmlReader reader, IHasShares item)
{
var list = new List();
reader.MoveToContent();
reader.Read();
// Loop through each element
while (!reader.EOF && reader.ReadState == ReadState.Interactive)
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "Share":
{
if (reader.IsEmptyElement)
{
reader.Read();
continue;
}
using (var subReader = reader.ReadSubtree())
{
var child = GetShare(subReader);
if (child is not null)
{
list.Add(child);
}
}
break;
}
default:
{
reader.Skip();
break;
}
}
}
else
{
reader.Read();
}
}
item.Shares = list.ToArray();
}
///
/// Fetches from taglines node.
///
/// The reader.
/// The item.
private void FetchFromTaglinesNode(XmlReader reader, T item)
{
reader.MoveToContent();
reader.Read();
// Loop through each element
while (!reader.EOF && reader.ReadState == ReadState.Interactive)
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "Tagline":
item.Tagline = reader.ReadNormalizedString();
break;
default:
reader.Skip();
break;
}
}
else
{
reader.Read();
}
}
}
///
/// Fetches from genres node.
///
/// The reader.
/// The item.
private void FetchFromGenresNode(XmlReader reader, T item)
{
reader.MoveToContent();
reader.Read();
// Loop through each element
while (!reader.EOF && reader.ReadState == ReadState.Interactive)
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "Genre":
var genre = reader.ReadNormalizedString();
if (!string.IsNullOrEmpty(genre))
{
item.AddGenre(genre);
}
break;
default:
reader.Skip();
break;
}
}
else
{
reader.Read();
}
}
}
private void FetchFromTagsNode(XmlReader reader, BaseItem item)
{
reader.MoveToContent();
reader.Read();
var tags = new List();
// Loop through each element
while (!reader.EOF && reader.ReadState == ReadState.Interactive)
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "Tag":
var tag = reader.ReadNormalizedString();
if (!string.IsNullOrEmpty(tag))
{
tags.Add(tag);
}
break;
default:
reader.Skip();
break;
}
}
else
{
reader.Read();
}
}
item.Tags = tags.Distinct(StringComparer.Ordinal).ToArray();
}
///
/// Fetches the data from persons node.
///
/// The reader.
/// The item.
private void FetchDataFromPersonsNode(XmlReader reader, MetadataResult item)
{
reader.MoveToContent();
reader.Read();
// Loop through each element
while (!reader.EOF && reader.ReadState == ReadState.Interactive)
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "Person":
case "Actor":
var person = reader.GetPersonFromXmlNode();
if (person is not null)
{
item.AddPerson(person);
}
break;
default:
reader.Skip();
break;
}
}
else
{
reader.Read();
}
}
}
private void FetchDataFromTrailersNode(XmlReader reader, T item)
{
reader.MoveToContent();
reader.Read();
// Loop through each element
while (!reader.EOF && reader.ReadState == ReadState.Interactive)
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "Trailer":
var trailer = reader.ReadNormalizedString();
if (!string.IsNullOrEmpty(trailer))
{
item.AddTrailerUrl(trailer);
}
break;
default:
reader.Skip();
break;
}
}
else
{
reader.Read();
}
}
}
///
/// Fetches from studios node.
///
/// The reader.
/// The item.
private void FetchFromStudiosNode(XmlReader reader, T item)
{
reader.MoveToContent();
reader.Read();
// Loop through each element
while (!reader.EOF && reader.ReadState == ReadState.Interactive)
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "Studio":
var studio = reader.ReadNormalizedString();
if (!string.IsNullOrEmpty(studio))
{
item.AddStudio(studio);
}
break;
default:
reader.Skip();
break;
}
}
else
{
reader.Read();
}
}
}
///
/// Get linked child.
///
/// The xml reader.
/// The linked child.
protected LinkedChild? GetLinkedChild(XmlReader reader)
{
var linkedItem = new LinkedChild { Type = LinkedChildType.Manual };
reader.MoveToContent();
reader.Read();
// Loop through each element
while (!reader.EOF && reader.ReadState == ReadState.Interactive)
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "Path":
linkedItem.Path = reader.ReadNormalizedString();
break;
case "ItemId":
linkedItem.LibraryItemId = reader.ReadNormalizedString();
break;
default:
reader.Skip();
break;
}
}
else
{
reader.Read();
}
}
// This is valid
if (!string.IsNullOrWhiteSpace(linkedItem.Path) || !string.IsNullOrWhiteSpace(linkedItem.LibraryItemId))
{
return linkedItem;
}
return null;
}
///
/// Get share.
///
/// The xml reader.
/// The share.
protected Share? GetShare(XmlReader reader)
{
var item = new Share();
reader.MoveToContent();
reader.Read();
// Loop through each element
while (!reader.EOF && reader.ReadState == ReadState.Interactive)
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "UserId":
item.UserId = reader.ReadNormalizedString();
break;
case "CanEdit":
{
item.CanEdit = string.Equals(reader.ReadElementContentAsString(), "true", StringComparison.OrdinalIgnoreCase);
break;
}
default:
reader.Skip();
break;
}
}
else
{
reader.Read();
}
}
// This is valid
if (!string.IsNullOrWhiteSpace(item.UserId))
{
return item;
}
return null;
}
}
}