jellyfin-server/MediaBrowser.Providers/Plugins/Tmdb/Movies/TmdbMovieProvider.cs
2020-08-25 13:03:07 +02:00

399 lines
16 KiB
C#

#pragma warning disable CS1591
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Common;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Providers;
using MediaBrowser.Model.Serialization;
using MediaBrowser.Providers.Plugins.Tmdb.Models.Movies;
using Microsoft.Extensions.Logging;
namespace MediaBrowser.Providers.Plugins.Tmdb.Movies
{
/// <summary>
/// Class MovieDbProvider.
/// </summary>
public class TmdbMovieProvider : IRemoteMetadataProvider<Movie, MovieInfo>, IHasOrder
{
private const string TmdbConfigUrl = TmdbUtils.BaseTmdbApiUrl + "3/configuration?api_key={0}";
private const string GetMovieInfo3 = TmdbUtils.BaseTmdbApiUrl + @"3/movie/{0}?api_key={1}&append_to_response=casts,releases,images,keywords,trailers";
internal static TmdbMovieProvider Current { get; private set; }
private readonly IJsonSerializer _jsonSerializer;
private readonly IHttpClientFactory _httpClientFactory;
private readonly IFileSystem _fileSystem;
private readonly IServerConfigurationManager _configurationManager;
private readonly ILogger<TmdbMovieProvider> _logger;
private readonly ILibraryManager _libraryManager;
private readonly IApplicationHost _appHost;
private readonly CultureInfo _usCulture = new CultureInfo("en-US");
public TmdbMovieProvider(
IJsonSerializer jsonSerializer,
IHttpClientFactory httpClientFactory,
IFileSystem fileSystem,
IServerConfigurationManager configurationManager,
ILogger<TmdbMovieProvider> logger,
ILibraryManager libraryManager,
IApplicationHost appHost)
{
_jsonSerializer = jsonSerializer;
_httpClientFactory = httpClientFactory;
_fileSystem = fileSystem;
_configurationManager = configurationManager;
_logger = logger;
_libraryManager = libraryManager;
_appHost = appHost;
Current = this;
}
public Task<IEnumerable<RemoteSearchResult>> GetSearchResults(MovieInfo searchInfo, CancellationToken cancellationToken)
{
return GetMovieSearchResults(searchInfo, cancellationToken);
}
public async Task<IEnumerable<RemoteSearchResult>> GetMovieSearchResults(ItemLookupInfo searchInfo, CancellationToken cancellationToken)
{
var tmdbId = searchInfo.GetProviderId(MetadataProvider.Tmdb);
if (!string.IsNullOrEmpty(tmdbId))
{
cancellationToken.ThrowIfCancellationRequested();
await EnsureMovieInfo(tmdbId, searchInfo.MetadataLanguage, cancellationToken).ConfigureAwait(false);
var dataFilePath = GetDataFilePath(tmdbId, searchInfo.MetadataLanguage);
var obj = _jsonSerializer.DeserializeFromFile<MovieResult>(dataFilePath);
var tmdbSettings = await GetTmdbSettings(cancellationToken).ConfigureAwait(false);
var tmdbImageUrl = tmdbSettings.images.GetImageUrl("original");
var remoteResult = new RemoteSearchResult
{
Name = obj.GetTitle(),
SearchProviderName = Name,
ImageUrl = string.IsNullOrWhiteSpace(obj.Poster_Path) ? null : tmdbImageUrl + obj.Poster_Path
};
if (!string.IsNullOrWhiteSpace(obj.Release_Date))
{
// These dates are always in this exact format
if (DateTime.TryParse(obj.Release_Date, _usCulture, DateTimeStyles.None, out var r))
{
remoteResult.PremiereDate = r.ToUniversalTime();
remoteResult.ProductionYear = remoteResult.PremiereDate.Value.Year;
}
}
remoteResult.SetProviderId(MetadataProvider.Tmdb, obj.Id.ToString(_usCulture));
if (!string.IsNullOrWhiteSpace(obj.Imdb_Id))
{
remoteResult.SetProviderId(MetadataProvider.Imdb, obj.Imdb_Id);
}
return new[] { remoteResult };
}
return await new TmdbSearch(_logger, _jsonSerializer, _libraryManager).GetMovieSearchResults(searchInfo, cancellationToken).ConfigureAwait(false);
}
public Task<MetadataResult<Movie>> GetMetadata(MovieInfo info, CancellationToken cancellationToken)
{
return GetItemMetadata<Movie>(info, cancellationToken);
}
public Task<MetadataResult<T>> GetItemMetadata<T>(ItemLookupInfo id, CancellationToken cancellationToken)
where T : BaseItem, new()
{
var movieDb = new GenericTmdbMovieInfo<T>(_logger, _jsonSerializer, _libraryManager, _fileSystem);
return movieDb.GetMetadata(id, cancellationToken);
}
public string Name => TmdbUtils.ProviderName;
/// <summary>
/// The _TMDB settings task.
/// </summary>
private TmdbSettingsResult _tmdbSettings;
/// <summary>
/// Gets the TMDB settings.
/// </summary>
/// <returns>Task{TmdbSettingsResult}.</returns>
internal async Task<TmdbSettingsResult> GetTmdbSettings(CancellationToken cancellationToken)
{
if (_tmdbSettings != null)
{
return _tmdbSettings;
}
using var requestMessage = new HttpRequestMessage(HttpMethod.Get, string.Format(CultureInfo.InvariantCulture, TmdbConfigUrl, TmdbUtils.ApiKey));
foreach (var header in TmdbUtils.AcceptHeaders)
{
requestMessage.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue(header));
}
using var response = await GetMovieDbResponse(requestMessage).ConfigureAwait(false);
await using var stream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false);
_tmdbSettings = await _jsonSerializer.DeserializeFromStreamAsync<TmdbSettingsResult>(stream).ConfigureAwait(false);
return _tmdbSettings;
}
/// <summary>
/// Gets the movie data path.
/// </summary>
/// <param name="appPaths">The app paths.</param>
/// <param name="tmdbId">The TMDB id.</param>
/// <returns>System.String.</returns>
internal static string GetMovieDataPath(IApplicationPaths appPaths, string tmdbId)
{
var dataPath = GetMoviesDataPath(appPaths);
return Path.Combine(dataPath, tmdbId);
}
internal static string GetMoviesDataPath(IApplicationPaths appPaths)
{
var dataPath = Path.Combine(appPaths.CachePath, "tmdb-movies2");
return dataPath;
}
/// <summary>
/// Downloads the movie info.
/// </summary>
/// <param name="id">The id.</param>
/// <param name="preferredMetadataLanguage">The preferred metadata language.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
internal async Task DownloadMovieInfo(string id, string preferredMetadataLanguage, CancellationToken cancellationToken)
{
var mainResult = await FetchMainResult(id, true, preferredMetadataLanguage, cancellationToken).ConfigureAwait(false);
if (mainResult == null)
{
return;
}
var dataFilePath = GetDataFilePath(id, preferredMetadataLanguage);
Directory.CreateDirectory(Path.GetDirectoryName(dataFilePath));
_jsonSerializer.SerializeToFile(mainResult, dataFilePath);
}
internal Task EnsureMovieInfo(string tmdbId, string language, CancellationToken cancellationToken)
{
if (string.IsNullOrEmpty(tmdbId))
{
throw new ArgumentNullException(nameof(tmdbId));
}
var path = GetDataFilePath(tmdbId, language);
var fileInfo = _fileSystem.GetFileSystemInfo(path);
if (fileInfo.Exists)
{
// If it's recent or automatic updates are enabled, don't re-download
if ((DateTime.UtcNow - _fileSystem.GetLastWriteTimeUtc(fileInfo)).TotalDays <= 2)
{
return Task.CompletedTask;
}
}
return DownloadMovieInfo(tmdbId, language, cancellationToken);
}
internal string GetDataFilePath(string tmdbId, string preferredLanguage)
{
if (string.IsNullOrEmpty(tmdbId))
{
throw new ArgumentNullException(nameof(tmdbId));
}
var path = GetMovieDataPath(_configurationManager.ApplicationPaths, tmdbId);
if (string.IsNullOrWhiteSpace(preferredLanguage))
{
preferredLanguage = "alllang";
}
var filename = string.Format(CultureInfo.InvariantCulture, "all-{0}.json", preferredLanguage);
return Path.Combine(path, filename);
}
public static string GetImageLanguagesParam(string preferredLanguage)
{
var languages = new List<string>();
if (!string.IsNullOrEmpty(preferredLanguage))
{
preferredLanguage = NormalizeLanguage(preferredLanguage);
languages.Add(preferredLanguage);
if (preferredLanguage.Length == 5) // like en-US
{
// Currenty, TMDB supports 2-letter language codes only
// They are planning to change this in the future, thus we're
// supplying both codes if we're having a 5-letter code.
languages.Add(preferredLanguage.Substring(0, 2));
}
}
languages.Add("null");
if (!string.Equals(preferredLanguage, "en", StringComparison.OrdinalIgnoreCase))
{
languages.Add("en");
}
return string.Join(",", languages);
}
public static string NormalizeLanguage(string language)
{
if (!string.IsNullOrEmpty(language))
{
// They require this to be uppercase
// Everything after the hyphen must be written in uppercase due to a way TMDB wrote their api.
// See here: https://www.themoviedb.org/talk/5119221d760ee36c642af4ad?page=3#56e372a0c3a3685a9e0019ab
var parts = language.Split('-');
if (parts.Length == 2)
{
language = parts[0] + "-" + parts[1].ToUpperInvariant();
}
}
return language;
}
public static string AdjustImageLanguage(string imageLanguage, string requestLanguage)
{
if (!string.IsNullOrEmpty(imageLanguage)
&& !string.IsNullOrEmpty(requestLanguage)
&& requestLanguage.Length > 2
&& imageLanguage.Length == 2
&& requestLanguage.StartsWith(imageLanguage, StringComparison.OrdinalIgnoreCase))
{
return requestLanguage;
}
return imageLanguage;
}
/// <summary>
/// Fetches the main result.
/// </summary>
/// <param name="id">The id.</param>
/// <param name="isTmdbId">if set to <c>true</c> [is TMDB identifier].</param>
/// <param name="language">The language.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{CompleteMovieData}.</returns>
internal async Task<MovieResult> FetchMainResult(string id, bool isTmdbId, string language, CancellationToken cancellationToken)
{
var url = string.Format(CultureInfo.InvariantCulture, GetMovieInfo3, id, TmdbUtils.ApiKey);
if (!string.IsNullOrEmpty(language))
{
url += string.Format(CultureInfo.InvariantCulture, "&language={0}", NormalizeLanguage(language));
// Get images in english and with no language
url += "&include_image_language=" + GetImageLanguagesParam(language);
}
cancellationToken.ThrowIfCancellationRequested();
using var requestMessage = new HttpRequestMessage(HttpMethod.Get, url);
foreach (var header in TmdbUtils.AcceptHeaders)
{
requestMessage.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue(header));
}
using var mainResponse = await GetMovieDbResponse(requestMessage).ConfigureAwait(false);
if (mainResponse.StatusCode == HttpStatusCode.NotFound)
{
return null;
}
await using var stream = await mainResponse.Content.ReadAsStreamAsync().ConfigureAwait(false);
var mainResult = await _jsonSerializer.DeserializeFromStreamAsync<MovieResult>(stream).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
// If the language preference isn't english, then have the overview fallback to english if it's blank
if (mainResult != null &&
string.IsNullOrEmpty(mainResult.Overview) &&
!string.IsNullOrEmpty(language) &&
!string.Equals(language, "en", StringComparison.OrdinalIgnoreCase))
{
_logger.LogInformation("MovieDbProvider couldn't find meta for language " + language + ". Trying English...");
url = string.Format(CultureInfo.InvariantCulture, GetMovieInfo3, id, TmdbUtils.ApiKey) + "&language=en";
if (!string.IsNullOrEmpty(language))
{
// Get images in english and with no language
url += "&include_image_language=" + GetImageLanguagesParam(language);
}
using var langRequestMessage = new HttpRequestMessage(HttpMethod.Get, url);
foreach (var header in TmdbUtils.AcceptHeaders)
{
langRequestMessage.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue(header));
}
using var langResponse = await GetMovieDbResponse(langRequestMessage).ConfigureAwait(false);
await using var langStream = await langResponse.Content.ReadAsStreamAsync().ConfigureAwait(false);
var langResult = await _jsonSerializer.DeserializeFromStreamAsync<MovieResult>(stream).ConfigureAwait(false);
mainResult.Overview = langResult.Overview;
}
return mainResult;
}
/// <summary>
/// Gets the movie db response.
/// </summary>
internal Task<HttpResponseMessage> GetMovieDbResponse(HttpRequestMessage message)
{
message.Headers.UserAgent.ParseAdd(_appHost.ApplicationUserAgent);
return _httpClientFactory.CreateClient().SendAsync(message);
}
/// <inheritdoc />
public int Order => 1;
/// <inheritdoc />
public Task<HttpResponseMessage> GetImageResponse(string url, CancellationToken cancellationToken)
{
return _httpClientFactory.CreateClient().GetAsync(url, cancellationToken);
}
}
}