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jellyfin/MediaBrowser.Api/BaseApiService.cs

386 lines
14 KiB

using MediaBrowser.Common.Net;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Session;
using MediaBrowser.Model.Logging;
using ServiceStack.Common.Web;
using ServiceStack.ServiceHost;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace MediaBrowser.Api
{
/// <summary>
/// Class BaseApiService
/// </summary>
[RequestFilter]
public class BaseApiService : IHasResultFactory, IRestfulService
{
/// <summary>
/// Gets or sets the logger.
/// </summary>
/// <value>The logger.</value>
public ILogger Logger { get; set; }
/// <summary>
/// Gets or sets the HTTP result factory.
/// </summary>
/// <value>The HTTP result factory.</value>
public IHttpResultFactory ResultFactory { get; set; }
/// <summary>
/// Gets or sets the request context.
/// </summary>
/// <value>The request context.</value>
public IRequestContext RequestContext { get; set; }
/// <summary>
/// To the optimized result.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="result">The result.</param>
/// <returns>System.Object.</returns>
protected object ToOptimizedResult<T>(T result)
where T : class
{
return ResultFactory.GetOptimizedResult(RequestContext, result);
}
/// <summary>
/// To the optimized result using cache.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="cacheKey">The cache key.</param>
/// <param name="lastDateModified">The last date modified.</param>
/// <param name="cacheDuration">Duration of the cache.</param>
/// <param name="factoryFn">The factory fn.</param>
/// <returns>System.Object.</returns>
/// <exception cref="System.ArgumentNullException">cacheKey</exception>
protected object ToOptimizedResultUsingCache<T>(Guid cacheKey, DateTime lastDateModified, TimeSpan? cacheDuration, Func<T> factoryFn)
where T : class
{
return ResultFactory.GetOptimizedResultUsingCache(RequestContext, cacheKey, lastDateModified, cacheDuration, factoryFn);
}
/// <summary>
/// To the cached result.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="cacheKey">The cache key.</param>
/// <param name="lastDateModified">The last date modified.</param>
/// <param name="cacheDuration">Duration of the cache.</param>
/// <param name="factoryFn">The factory fn.</param>
/// <param name="contentType">Type of the content.</param>
/// <returns>System.Object.</returns>
/// <exception cref="System.ArgumentNullException">cacheKey</exception>
protected object ToCachedResult<T>(Guid cacheKey, DateTime lastDateModified, TimeSpan? cacheDuration, Func<T> factoryFn, string contentType)
where T : class
{
return ResultFactory.GetCachedResult(RequestContext, cacheKey, lastDateModified, cacheDuration, factoryFn, contentType);
}
/// <summary>
/// To the static file result.
/// </summary>
/// <param name="path">The path.</param>
/// <returns>System.Object.</returns>
protected object ToStaticFileResult(string path)
{
return ResultFactory.GetStaticFileResult(RequestContext, path);
}
private readonly char[] _dashReplaceChars = new[] { '?', '/' };
private const char SlugChar = '-';
protected Task<Artist> GetArtist(string name, ILibraryManager libraryManager)
{
return libraryManager.GetArtist(DeSlugArtistName(name, libraryManager));
}
protected Task<Studio> GetStudio(string name, ILibraryManager libraryManager)
{
return libraryManager.GetStudio(DeSlugStudioName(name, libraryManager));
}
protected Task<Genre> GetGenre(string name, ILibraryManager libraryManager)
{
return libraryManager.GetGenre(DeSlugGenreName(name, libraryManager));
}
protected Task<MusicGenre> GetMusicGenre(string name, ILibraryManager libraryManager)
{
return libraryManager.GetMusicGenre(DeSlugGenreName(name, libraryManager));
}
protected Task<GameGenre> GetGameGenre(string name, ILibraryManager libraryManager)
{
return libraryManager.GetGameGenre(DeSlugGameGenreName(name, libraryManager));
}
protected Task<Person> GetPerson(string name, ILibraryManager libraryManager)
{
return libraryManager.GetPerson(DeSlugPersonName(name, libraryManager));
}
/// <summary>
/// Deslugs an artist name by finding the correct entry in the library
/// </summary>
/// <param name="name"></param>
/// <param name="libraryManager"></param>
/// <returns></returns>
protected string DeSlugArtistName(string name, ILibraryManager libraryManager)
{
if (name.IndexOf(SlugChar) == -1)
{
return name;
}
return libraryManager.RootFolder.RecursiveChildren
.OfType<Audio>()
.SelectMany(i => new[] { i.Artist, i.AlbumArtist })
.Where(i => !string.IsNullOrEmpty(i))
.Distinct(StringComparer.OrdinalIgnoreCase)
.FirstOrDefault(i =>
{
i = _dashReplaceChars.Aggregate(i, (current, c) => current.Replace(c, SlugChar));
return string.Equals(i, name, StringComparison.OrdinalIgnoreCase);
}) ?? name;
}
/// <summary>
/// Deslugs a genre name by finding the correct entry in the library
/// </summary>
protected string DeSlugGenreName(string name, ILibraryManager libraryManager)
{
if (name.IndexOf(SlugChar) == -1)
{
return name;
}
return libraryManager.RootFolder.RecursiveChildren
.SelectMany(i => i.Genres)
.Distinct(StringComparer.OrdinalIgnoreCase)
.FirstOrDefault(i =>
{
i = _dashReplaceChars.Aggregate(i, (current, c) => current.Replace(c, SlugChar));
return string.Equals(i, name, StringComparison.OrdinalIgnoreCase);
}) ?? name;
}
protected string DeSlugGameGenreName(string name, ILibraryManager libraryManager)
{
if (name.IndexOf(SlugChar) == -1)
{
return name;
}
return libraryManager.RootFolder.RecursiveChildren
.OfType<Game>()
.SelectMany(i => i.Genres)
.Distinct(StringComparer.OrdinalIgnoreCase)
.FirstOrDefault(i =>
{
i = _dashReplaceChars.Aggregate(i, (current, c) => current.Replace(c, SlugChar));
return string.Equals(i, name, StringComparison.OrdinalIgnoreCase);
}) ?? name;
}
/// <summary>
/// Deslugs a studio name by finding the correct entry in the library
/// </summary>
protected string DeSlugStudioName(string name, ILibraryManager libraryManager)
{
if (name.IndexOf(SlugChar) == -1)
{
return name;
}
return libraryManager.RootFolder.RecursiveChildren
.SelectMany(i => i.Studios)
.Distinct(StringComparer.OrdinalIgnoreCase)
.FirstOrDefault(i =>
{
i = _dashReplaceChars.Aggregate(i, (current, c) => current.Replace(c, SlugChar));
return string.Equals(i, name, StringComparison.OrdinalIgnoreCase);
}) ?? name;
}
/// <summary>
/// Deslugs a person name by finding the correct entry in the library
/// </summary>
protected string DeSlugPersonName(string name, ILibraryManager libraryManager)
{
if (name.IndexOf(SlugChar) == -1)
{
return name;
}
return libraryManager.RootFolder.RecursiveChildren
.SelectMany(i => i.People)
.Select(i => i.Name)
.Distinct(StringComparer.OrdinalIgnoreCase)
.FirstOrDefault(i =>
{
i = _dashReplaceChars.Aggregate(i, (current, c) => current.Replace(c, SlugChar));
return string.Equals(i, name, StringComparison.OrdinalIgnoreCase);
}) ?? name;
}
}
/// <summary>
/// Class RequestFilterAttribute
/// </summary>
public class RequestFilterAttribute : Attribute, IHasRequestFilter
{
//This property will be resolved by the IoC container
/// <summary>
/// Gets or sets the user manager.
/// </summary>
/// <value>The user manager.</value>
public IUserManager UserManager { get; set; }
public ISessionManager SessionManager { get; set; }
/// <summary>
/// Gets or sets the logger.
/// </summary>
/// <value>The logger.</value>
public ILogger Logger { get; set; }
/// <summary>
/// The request filter is executed before the service.
/// </summary>
/// <param name="request">The http request wrapper</param>
/// <param name="response">The http response wrapper</param>
/// <param name="requestDto">The request DTO</param>
public void RequestFilter(IHttpRequest request, IHttpResponse response, object requestDto)
{
//This code is executed before the service
var auth = GetAuthorization(request);
if (auth != null)
{
User user = null;
if (auth.ContainsKey("UserId"))
{
var userId = auth["UserId"];
if (!string.IsNullOrEmpty(userId))
{
user = UserManager.GetUserById(new Guid(userId));
}
}
string deviceId;
string device;
string client;
string version;
auth.TryGetValue("DeviceId", out deviceId);
auth.TryGetValue("Device", out device);
auth.TryGetValue("Client", out client);
auth.TryGetValue("Version", out version);
if (!string.IsNullOrEmpty(client) && !string.IsNullOrEmpty(deviceId) && !string.IsNullOrEmpty(device) && !string.IsNullOrEmpty(version))
{
SessionManager.LogConnectionActivity(client, version, deviceId, device, user);
}
}
}
/// <summary>
/// Gets the auth.
/// </summary>
/// <param name="httpReq">The HTTP req.</param>
/// <returns>Dictionary{System.StringSystem.String}.</returns>
public static Dictionary<string, string> GetAuthorization(IHttpRequest httpReq)
{
var auth = httpReq.Headers[HttpHeaders.Authorization];
return GetAuthorization(auth);
}
/// <summary>
/// Gets the authorization.
/// </summary>
/// <param name="httpReq">The HTTP req.</param>
/// <returns>Dictionary{System.StringSystem.String}.</returns>
public static Dictionary<string, string> GetAuthorization(IRequestContext httpReq)
{
var auth = httpReq.GetHeader("Authorization");
return GetAuthorization(auth);
}
/// <summary>
/// Gets the authorization.
/// </summary>
/// <param name="authorizationHeader">The authorization header.</param>
/// <returns>Dictionary{System.StringSystem.String}.</returns>
private static Dictionary<string, string> GetAuthorization(string authorizationHeader)
{
if (authorizationHeader == null) return null;
var parts = authorizationHeader.Split(' ');
// There should be at least to parts
if (parts.Length < 2) return null;
// It has to be a digest request
if (!string.Equals(parts[0], "MediaBrowser", StringComparison.OrdinalIgnoreCase))
{
return null;
}
// Remove uptil the first space
authorizationHeader = authorizationHeader.Substring(authorizationHeader.IndexOf(' '));
parts = authorizationHeader.Split(',');
var result = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
foreach (var item in parts)
{
var param = item.Trim().Split(new[] { '=' }, 2);
result.Add(param[0], param[1].Trim(new[] { '"' }));
}
return result;
}
/// <summary>
/// A new shallow copy of this filter is used on every request.
/// </summary>
/// <returns>IHasRequestFilter.</returns>
public IHasRequestFilter Copy()
{
return this;
}
/// <summary>
/// Order in which Request Filters are executed.
/// &lt;0 Executed before global request filters
/// &gt;0 Executed after global request filters
/// </summary>
/// <value>The priority.</value>
public int Priority
{
get { return 0; }
}
}
}