add new sharing function

MediaBrowser.Server.Implementations/Social/SharingManager.cs

@@ -0,0 +1,88 @@
+using MediaBrowser.Common.Extensions;
+using MediaBrowser.Controller;
+using MediaBrowser.Controller.Configuration;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Social;
+using MediaBrowser.Model.Social;
+using System;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Server.Implementations.Social
+{
+    public class SharingManager : ISharingManager
+    {
+        private readonly SharingRepository _repository;
+        private readonly IServerConfigurationManager _config;
+        private readonly ILibraryManager _libraryManager;
+        private readonly IServerApplicationHost _appHost;
+
+        public SharingManager(SharingRepository repository, IServerConfigurationManager config, ILibraryManager libraryManager, IServerApplicationHost appHost)
+        {
+            _repository = repository;
+            _config = config;
+            _libraryManager = libraryManager;
+            _appHost = appHost;
+        }
+
+        public async Task<SocialShareInfo> CreateShare(string itemId, string userId)
+        {
+            if (string.IsNullOrWhiteSpace(itemId))
+            {
+                throw new ArgumentNullException("itemId");
+            }
+            if (string.IsNullOrWhiteSpace(userId))
+            {
+                throw new ArgumentNullException("userId");
+            }
+
+            var item = _libraryManager.GetItemById(itemId);
+
+            if (item == null)
+            {
+                throw new ResourceNotFoundException();
+            }
+
+            var externalUrl = _appHost.GetSystemInfo().WanAddress;
+
+            if (string.IsNullOrWhiteSpace(externalUrl))
+            {
+                throw new InvalidOperationException("No external server address is currently available.");
+            }
+
+            var info = new SocialShareInfo
+            {
+                Id = Guid.NewGuid().ToString("N"),
+                ExpirationDate = DateTime.UtcNow.AddDays(_config.Configuration.SharingExpirationDays),
+                ItemId = itemId,
+                UserId = userId,
+                Overview = item.Overview,
+                Name = GetTitle(item)
+            };
+
+            info.ImageUrl = externalUrl + "/Social/Shares/Public/" + info.Id + "/Image";
+            info.ImageUrl = externalUrl + "/web/shared.html?id=" + info.Id;
+
+            await _repository.CreateShare(info).ConfigureAwait(false);
+
+            return GetShareInfo(info.Id);
+        }
+
+        private string GetTitle(BaseItem item)
+        {
+            return item.Name;
+        }
+
+        public SocialShareInfo GetShareInfo(string id)
+        {
+            var info = _repository.GetShareInfo(id);
+
+            return info;
+        }
+
+        public Task DeleteShare(string id)
+        {
+            return _repository.DeleteShare(id);
+        }
+    }
+}