1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
using MediaBrowser.Common.Net;
using MediaBrowser.Controller.Session;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Serialization;
using MediaBrowser.Model.Session;
using MediaBrowser.Model.System;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
namespace Emby.Server.Implementations.Session
{
public class HttpSessionController : ISessionController
{
private readonly IHttpClient _httpClient;
private readonly IJsonSerializer _json;
private readonly ISessionManager _sessionManager;
public SessionInfo Session { get; private set; }
private readonly string _postUrl;
public HttpSessionController(IHttpClient httpClient,
IJsonSerializer json,
SessionInfo session,
string postUrl, ISessionManager sessionManager)
{
_httpClient = httpClient;
_json = json;
Session = session;
_postUrl = postUrl;
_sessionManager = sessionManager;
}
private string PostUrl
{
get
{
return string.Format("http://{0}{1}", Session.RemoteEndPoint, _postUrl);
}
}
public bool IsSessionActive
{
get
{
return (DateTime.UtcNow - Session.LastActivityDate).TotalMinutes <= 5;
}
}
public bool SupportsMediaControl
{
get { return true; }
}
private Task SendMessage(string name, string messageId, CancellationToken cancellationToken)
{
return SendMessage(name, messageId, new Dictionary<string, string>(), cancellationToken);
}
private Task SendMessage(string name, string messageId, Dictionary<string, string> args, CancellationToken cancellationToken)
{
args["messageId"] = messageId;
var url = PostUrl + "/" + name + ToQueryString(args);
return SendRequest(new HttpRequestOptions
{
Url = url,
CancellationToken = cancellationToken,
BufferContent = false
});
}
private Task SendPlayCommand(PlayRequest command, string messageId, CancellationToken cancellationToken)
{
var dict = new Dictionary<string, string>();
dict["ItemIds"] = string.Join(",", command.ItemIds.Select(i => i.ToString("N")).ToArray());
if (command.StartPositionTicks.HasValue)
{
dict["StartPositionTicks"] = command.StartPositionTicks.Value.ToString(CultureInfo.InvariantCulture);
}
if (command.AudioStreamIndex.HasValue)
{
dict["AudioStreamIndex"] = command.AudioStreamIndex.Value.ToString(CultureInfo.InvariantCulture);
}
if (command.SubtitleStreamIndex.HasValue)
{
dict["SubtitleStreamIndex"] = command.SubtitleStreamIndex.Value.ToString(CultureInfo.InvariantCulture);
}
if (command.StartIndex.HasValue)
{
dict["StartIndex"] = command.StartIndex.Value.ToString(CultureInfo.InvariantCulture);
}
if (!string.IsNullOrEmpty(command.MediaSourceId))
{
dict["MediaSourceId"] = command.MediaSourceId;
}
return SendMessage(command.PlayCommand.ToString(), messageId, dict, cancellationToken);
}
private Task SendPlaystateCommand(PlaystateRequest command, string messageId, CancellationToken cancellationToken)
{
var args = new Dictionary<string, string>();
if (command.Command == PlaystateCommand.Seek)
{
if (!command.SeekPositionTicks.HasValue)
{
throw new ArgumentException("SeekPositionTicks cannot be null");
}
args["SeekPositionTicks"] = command.SeekPositionTicks.Value.ToString(CultureInfo.InvariantCulture);
}
return SendMessage(command.Command.ToString(), messageId, args, cancellationToken);
}
private string[] _supportedMessages = new string[] { };
public Task SendMessage<T>(string name, string messageId, T data, ISessionController[] allControllers, CancellationToken cancellationToken)
{
if (!IsSessionActive)
{
return Task.CompletedTask;
}
if (string.Equals(name, "Play", StringComparison.OrdinalIgnoreCase))
{
return SendPlayCommand(data as PlayRequest, messageId, cancellationToken);
}
if (string.Equals(name, "PlayState", StringComparison.OrdinalIgnoreCase))
{
return SendPlaystateCommand(data as PlaystateRequest, messageId, cancellationToken);
}
if (string.Equals(name, "GeneralCommand", StringComparison.OrdinalIgnoreCase))
{
var command = data as GeneralCommand;
return SendMessage(command.Name, messageId, command.Arguments, cancellationToken);
}
if (!_supportedMessages.Contains(name, StringComparer.OrdinalIgnoreCase))
{
return Task.CompletedTask;
}
var url = PostUrl + "/" + name;
url += "?messageId=" + messageId;
var options = new HttpRequestOptions
{
Url = url,
CancellationToken = cancellationToken,
BufferContent = false
};
if (data != null)
{
if (typeof(T) == typeof(string))
{
var str = data as String;
if (!string.IsNullOrEmpty(str))
{
options.RequestContent = str;
options.RequestContentType = "application/json";
}
}
else
{
options.RequestContent = _json.SerializeToString(data);
options.RequestContentType = "application/json";
}
}
return SendRequest(options);
}
private async Task SendRequest(HttpRequestOptions options)
{
using (var response = await _httpClient.Post(options).ConfigureAwait(false))
{
}
}
private string ToQueryString(Dictionary<string, string> nvc)
{
var array = (from item in nvc
select string.Format("{0}={1}", WebUtility.UrlEncode(item.Key), WebUtility.UrlEncode(item.Value)))
.ToArray();
var args = string.Join("&", array);
if (string.IsNullOrEmpty(args))
{
return args;
}
return "?" + args;
}
}
}
|
