aboutsummaryrefslogtreecommitdiff
path: root/xep-0197.xml
blob: 93cbf79df4d76859d04e74002f03493cdf6e8bbf (plain)
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
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE xep SYSTEM 'xep.dtd' [
  <!ENTITY % ents SYSTEM 'xep.ent'>
%ents;
]>
<?xml-stylesheet type='text/xsl' href='xep.xsl'?>
<xep>
<header>
  <title>User Viewing</title>
  <abstract>This document defines an XMPP protocol extension for communicating information about the television shows, movies, or other videos that a user watches.</abstract>
  &LEGALNOTICE;
  <number>0197</number>
  <status>Deferred</status>
  <type>Standards Track</type>
  <sig>Standards</sig>
  <dependencies>
    <spec>XMPP Core</spec>
    <spec>XMPP IM</spec>
    <spec>XEP-0060</spec>
    <spec>XEP-0163</spec>
  </dependencies>
  <supersedes/>
  <supersededby/>
  <shortname>NOT_YET_ASSIGNED</shortname>
  &stpeter;
  <author>
    <firstname>Kevin</firstname>
    <surname>Hoekman</surname>
    <email>kevin.hoekman@pandora.be</email>
    <jid>kevinh@jabber.org</jid>
  </author>
  <revision>
    <version>0.3</version>
    <date>2008-09-25</date>
    <initials>psa</initials>
    <remark><p>Modified namespace in accordance with protocol versioning policies.</p></remark>
  </revision>
  <revision>
    <version>0.2</version>
    <date>2007-10-03</date>
    <initials>psa</initials>
    <remark><p>Updated in accordance with XEP-0163.</p></remark>
  </revision>
  <revision>
    <version>0.1</version>
    <date>2006-08-30</date>
    <initials>psa</initials>
    <remark><p>Initial version.</p></remark>
  </revision>
  <revision>
    <version>0.0.1</version>
    <date>2006-08-28</date>
    <initials>psa/kh</initials>
    <remark><p>First draft.</p></remark>
  </revision>
</header>
<section1 topic='Introduction' anchor='intro'>
  <p>&xep0060; and &xep0163; can be used to publish a wide variety of "extended presence" information about users. This document specifies an extended presence payload format that communicates information about the television shows, movies, or other videos that a user watches. This information may be of interest to a user's contacts and can also be used in social networking applications (e.g., IPTV systems).</p>
</section1>
<section1 topic='Protocol' anchor='protocol'>
  <section2 topic='Container Element and Child Elements' anchor='protocol-elements'>
    <p>Information about video viewing is provided by the user (or automated integration with video systems) and is propagated on the network by the user's client. The information container for video viewing data is a &lt;video/&gt; element that is qualified by the 'urn:xmpp:viewing:0' namespace. The video information itself is provided as the XML character data of the following children of the &lt;video/&gt; element:</p>
    <table caption='Child Elements'>
      <tr>
        <th>Element</th>
        <th>Description</th>
        <th>Example</th>
        <th>Datatype</th>
      </tr>
      <tr>
        <td>author</td>
        <td>The author of the program</td>
        <td>Robert Duncan</td>
        <td>xs:string</td>
      </tr>
      <tr>
        <td>cast</td>
        <td>The cast members of the program</td>
        <td>Trace Beaulieu, Frank Conniff, Joel Hodgson, Jim Mallon, Kevin Murphy, Michael J. Nelson, Mary Jo Pehl</td>
        <td>xs:string</td>
      </tr>
      <tr>
        <td>channel_name</td>
        <td>The name of the channel showing the program</td>
        <td>Sci-Fi Channel</td>
        <td>xs:string</td>
      </tr>
      <tr>
        <td>description</td>
        <td>A description of the program</td>
        <td>Terror From The Year 5000</td>
        <td>xs:string</td>
      </tr>
      <tr>
        <td>duration</td>
        <td>The duration of the program (in seconds)</td>
        <td>1800</td>
        <td>xs:positiveInteger</td>
      </tr>
      <tr>
        <td>end_time</td>
        <td>The end time of the program</td>
        <td>2006-08-29T03:30Z</td>
        <td>xs:dateTime</td>
      </tr>
      <tr>
        <td>episode</td>
        <td>The episode number of the program</td>
        <td>807</td>
        <td>xs:string</td>
      </tr>
      <tr>
        <td>program_name</td>
        <td>The name of the program</td>
        <td>Mystery Science Theater 3000</td>
        <td>xs:string</td>
      </tr>
      <tr>
        <td>program_type</td>
        <td>The type of the program</td>
        <td>Comedy</td>
        <td>xs:string</td>
      </tr>
      <tr>
        <td>start_time</td>
        <td>The start time of the program</td>
        <td>2006-08-29T03:00Z</td>
        <td>xs:dateTime</td>
      </tr>
      <tr>
        <td>subprogram_type</td>
        <td>The type of the sub-program (e.g., outtakes on an extended DVD)</td>
        <td>Cast interview</td>
        <td>xs:string</td>
      </tr>
      <tr>
        <td>uri</td>
        <td>A URI for the video or relevant service</td>
        <td>http://www.mst3kinfo.com/</td>
        <td>xs:anyURI</td>
      </tr>
      <tr>
        <td>user_comment</td>
        <td>A user's free-form comments about the program</td>
        <td>This is one of my favorite episodes! MST3K forever!</td>
        <td>xs:string</td>
      </tr>
      <tr>
        <td>user_rating</td>
        <td>The user's personal rating of the program (on a scale of 1 to 10, with 10 being highest)</td>
        <td>9</td>
        <td>xs:string</td>
      </tr>
    </table>
    <p>All elements are OPTIONAL.</p>
    <p>NOTE: The datatypes specified above are defined in &w3xmlschema2;.</p>
  </section2>
  <section2 topic='Transport Mechanism' anchor='protocol-transport'>
    <p>When a user starts watching a video, its client may publish that fact to a PEP node whose NodeID is "urn:xmpp:viewing:0" &NSNOTE; or to a generic pubsub node. Because viewing information is not pure presence information and can change independently of the user's availability, it SHOULD NOT be provided as an extension to the &PRESENCE; stanza type.</p>
    <example caption='User Publishes Viewing Information'><![CDATA[
<iq type='set' from='stpeter@jabber.org/work' id='viewing1'>
  <pubsub xmlns='http://jabber.org/protocol/pubsub'>
    <publish node='urn:xmpp:viewing:0'>
      <item id='8eaa8ae16651455376dab4eae45772337e9ec372'>
        <video xmlns='urn:xmpp:viewing:0'>
          <name>Mystery Science Theater 3000</name>
          <episode>807</episode>
          <description>Terror From The Year 5000</description>
          <uri>http://www.mst3kinfo.com/</uri>
        </video>
      </item>
    </publish>
  </pubsub>
</iq>
]]></example>
    <p>The viewing information is then delivered to all subscribers:</p>
    <example caption='Viewing Information is Delivered to All Subscribers'><![CDATA[
<message from='stpeter@jabber.org' to='maineboy@jabber.org'>
  <event xmlns='http://jabber.org/protocol/pubsub#event'>
    <items node='urn:xmpp:viewing:0'>
      <item id='8eaa8ae16651455376dab4eae45772337e9ec372'>
        <video xmlns='urn:xmpp:viewing:0'>
          <name>Mystery Science Theater 3000</name>
          <episode>807</episode>
          <description>Terror From The Year 5000</description>
          <uri>http://www.mst3kinfo.com/</uri>
        </video>
      </item>
    </items>
  </event>
</message>
]]></example>
    <p>When the user stops watching the video, the user's client SHOULD send an empty &lt;video/&gt; element with the same ItemID:</p>
    <example caption='User Publishes Stop Information'><![CDATA[
<iq type='set' from='stpeter@jabber.org/work' id='viewing2'>
  <pubsub xmlns='http://jabber.org/protocol/pubsub'>
    <publish node='urn:xmpp:viewing:0'>
      <item id='8eaa8ae16651455376dab4eae45772337e9ec372'>
        <video xmlns='urn:xmpp:viewing:0'/>
      </item>
    </publish>
  </pubsub>
</iq>
]]></example>
    <example caption='Stop Information is Delivered to All Subscribers'><![CDATA[
<message from='stpeter@jabber.org' to='maineboy@jabber.org'>
  <event xmlns='http://jabber.org/protocol/pubsub#event'>
    <items node='urn:xmpp:viewing:0'>
      <item id='8eaa8ae16651455376dab4eae45772337e9ec372'>
        <video xmlns='urn:xmpp:viewing:0'/>
      </item>
    </items>
  </event>
</message>
]]></example>
  </section2>
</section1>
<section1 topic='Security Considerations' anchor='security'>
  <p>The videos that a user watches may be sensitive. A client MUST provide a way for a user to configure which videos or types of videos will not be published (e.g., via user preferences).</p>
</section1>
<section1 topic='IANA Considerations' anchor='iana'>
  <p>This document requires no interaction with &IANA;.</p>
</section1>
<section1 topic='XMPP Registrar Considerations' anchor='registrar'>
  <section2 topic='Protocol Namespaces' anchor='registrar-ns'>
    <p>This specification defines the following XML namespace:</p>
    <ul>
      <li>urn:xmpp:viewing:0</li>
    </ul>
    <p>Upon advancement of this specification from a status of Experimental to a status of Draft, the &REGISTRAR; shall add the foregoing namespace to the registry located at &NAMESPACES;, as described in Section 4 of &xep0053;.</p>
  </section2>
  <section2 topic='Namespace Versioning' anchor='registrar-versioning'>
    &NSVER;
  </section2>
</section1>
<section1 topic='XML Schema' anchor='schema'>
  <code><![CDATA[
<?xml version='1.0' encoding='UTF-8'?>

<xs:schema
    xmlns:xs='http://www.w3.org/2001/XMLSchema'
    targetNamespace='urn:xmpp:viewing:0'
    xmlns='urn:xmpp:viewing:0'
    elementFormDefault='qualified'>

  <xs:element name='room'>
    <xs:complexType>
      <xs:sequence minOccurs='0'>
        <xs:element name='author' type='xs:string' minOccurs='0'/>
        <xs:element name='cast' type='xs:string' minOccurs='0'/>
        <xs:element name='channel_name' type='xs:string' minOccurs='0'/>
        <xs:element name='description' type='xs:string' minOccurs='0'/>
        <xs:element name='duration' type='xs:positiveInteger' minOccurs='0'/>
        <xs:element name='end_time' type='xs:dateTime' minOccurs='0'/>
        <xs:element name='episode' type='xs:string' minOccurs='0'/>
        <xs:element name='program_name' type='xs:string' minOccurs='0'/>
        <xs:element name='program_type' type='xs:string' minOccurs='0'/>
        <xs:element name='start_time' type='xs:dateTime' minOccurs='0'/>
        <xs:element name='subprogram_type' type='xs:string' minOccurs='0'/>
        <xs:element name='uri' type='xs:anyURI' minOccurs='0'/>
        <xs:element name='user_comment' type='xs:string' minOccurs='0'/>
        <xs:element name='user_rating' type='xs:string' minOccurs='0'/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>

</xs:schema>
]]></code>
</section1>
</xep>