6 Aug
2015
6 Aug
'15
7:37 p.m.
Scenario :
Loading a rls-services XML file to admin(a)example.com (XCAP HTTP PUT) :
```xml
<?xml version="1.0" encoding="UTF-8"?>
<rls-services>
<service uri="sip:points@example.com">
<list name="points">
<entry uri="sip:point1@example.com">
<display-name>Point 1</display-name>
</entry>
<entry uri="sip:point2@example.com">
<display-name>Point 2</display-name>
</entry>
<entry uri="sip:point3@example.com">
<display-name>Point 3</display-name>
</entry>
</list>
<packages>
<package>presence</package>
</packages>
</service>
</rls-services>
```
alice(a)example.com -> subscribes to event presence on -> point1(a)example.com
bob(a)example.com -> subscribes to event presence on -> point1(a)example.com
carol(a)example.com -> subscribes to event presence on -> point1(a)example.com
Waiting some time (10~20 seconds, approx rls, waitn_time option)...
dave(a)example.com -> subscribes to event presence on -> point1(a)example.com
admin(a)example.com -> subscribes to RLS event presence.winfo for the first time on ->
points(a)example.com
Kamailio sends only partial state as mentioned in "fullState="false""
and "state="partial"" and only for user dave (last one subscribed)
with version "5" :
```xml
NOTIFY sip:admin@192.168.1.56:7060;transport=tcp SIP/2.0
Via: SIP/2.0/TCP 192.168.1.56;branch=z9hG4bKdfb9.fc98d020000000000000000000000000.0
To: <sip:admin@example.com>;tag=aoW7RQAYSw
From: <sip:points@example.com>;tag=8790d89920d6a95cb6b77ece9ac70b8d-80d4
CSeq: 2 NOTIFY
Call-ID: cCiV8exRxM
Content-Length: 1050
User-Agent: kamailio (4.4.0-dev2 (i386/linux))
Max-Forwards: 70
Event: presence.winfo
Contact: <sip:rls@192.168.1.56:5060>
Subscription-State: active;expires=8
Require: eventlist
Content-Type:
multipart/related;type="application/rlmi+xml";start="<1438875442.sip:points@example.com.1907048652>";boundary="LQLZpLYXZgJh5s2VPxHXdN1b"
--LQLZpLYXZgJh5s2VPxHXdN1b
Content-Transfer-Encoding: binary
Content-ID: <1438875442.sip:points@example.com.1907048652>
Content-Type: application/rlmi+xml;charset="UTF-8"
<?xml version="1.0"?>
<list uri="sip:points@example.com"
xmlns="urn:ietf:params:xml:ns:rlmi" version="2"
fullState="false"><resource
uri="sip:point2@example.com"><instance id="Scf8UhwQ"
state="active"
cid="1438875442.sip:point2@example.com.1254686349"/></resource></list>
--LQLZpLYXZgJh5s2VPxHXdN1b
Content-Transfer-Encoding: binary
Content-ID: <1438875442.sip:point2@example.com.1254686349>
Content-Type: application/watcherinfo+xml
<?xml version="1.0"?>
<watcherinfo xmlns="urn:ietf:params:xml:ns:watcherinfo" version="5"
state="partial">
<watcher-list resource="sip:point2@example.com"
package="presence">
<watcher id="alice-bob-carol-dave" event="subscribe"
status="active">sip:dave@example.com</watcher>
</watcher-list>
</watcherinfo>
--LQLZpLYXZgJh5s2VPxHXdN1b--
```
If I am reading well RFC 4662 Section 4.5
(https://tools.ietf.org/html/rfc4662#section-4.5) Kamailio should send a full state NOTIFY
for initial RLS subscribes and then it can send a partial state for updates.
I think we lose information here, but if a re-subscribe is performed I get a full NOTIFY,
which is my current "workaround" :
1 - Initial subscribe
2 - If full state -> OK
3 - If partial state -> re-subscribe
```xml
NOTIFY sip:admin@192.168.1.56:7060;transport=tcp SIP/2.0
Via: SIP/2.0/TCP 192.168.1.56;branch=z9hG4bK00c9.e11aad40000000000000000000000000.0
To: <sip:admin@example.com>;tag=AcM3AIKdAx
From: <sip:points@example.com>;tag=8790d89920d6a95cb6b77ece9ac70b8d-6573
CSeq: 1 NOTIFY
Call-ID: cCiV8exRxM
Content-Length: 3308
User-Agent: kamailio (4.4.0-dev2 (i386/linux))
Max-Forwards: 70
Event: presence.winfo
Contact: <sip:rls@192.168.1.56:5060>
Subscription-State: active;expires=17
Require: eventlist
Content-Type:
multipart/related;type="application/rlmi+xml";start="<1438875460.sip:points@example.com.151089623>";boundary="lxwToHs6uINUYOQjbengkND5"
--lxwToHs6uINUYOQjbengkND5
Content-Transfer-Encoding: binary
Content-ID: <1438875460.sip:points@example.com.151089623>
Content-Type: application/rlmi+xml;charset="UTF-8"
<?xml version="1.0"?>
<list uri="sip:points@example.com"
xmlns="urn:ietf:params:xml:ns:rlmi" version="1"
fullState="true">
<resource uri="sip:point1@example.com">
<instance id="Scf8UhwQ" state="active"
cid="1438875460.sip:point1@example.com.236018746"/>
</resource>
<resource uri="sip:point2@example.com">
<instance id="Scf8UhwQ" state="active"
cid="1438875460.sip:point2@example.com.720412755"/>
</resource>
<resource uri="sip:point3@example.com">
<instance id="Scf8UhwQ" state="active"
cid="1438875460.sip:point3@example.com.1064774448"/>
</resource>
</list>
--lxwToHs6uINUYOQjbengkND5
Content-Transfer-Encoding: binary
Content-ID: <1438875460.sip:point1@example.com.236018746>
Content-Type: application/watcherinfo+xml
<?xml version="1.0"?>
<watcherinfo xmlns="urn:ietf:params:xml:ns:watcherinfo" version="1"
state="full">
<watcher-list resource="sip:point1@example.com"
package="presence">
<watcher id="796ffdf4-22384(a)192.168.1.56" event="subscribe"
status="active">sip:admin@example.com</watcher>
<watcher id="796ffdf4-22381(a)192.168.1.56" event="subscribe"
status="active">sip:admin@example.com</watcher>
</watcher-list>
</watcherinfo>
--lxwToHs6uINUYOQjbengkND5
Content-Transfer-Encoding: binary
Content-ID: <1438875460.sip:point2@example.com.720412755>
Content-Type: application/watcherinfo+xml
<?xml version="1.0"?>
<watcherinfo xmlns="urn:ietf:params:xml:ns:watcherinfo" version="1"
state="full">
<watcher-list resource="sip:point2@example.com"
package="presence">
<watcher id="796ffdf5-22384(a)192.168.1.56" event="subscribe"
status="active">sip:admin@example.com</watcher>
<watcher id="alice-bob-carol-dave" event="subscribe"
status="active">sip:alice@example.com</watcher>
<watcher id="alice-bob-carol-dave" event="subscribe"
status="active">sip:bob@example.com</watcher>
<watcher id="alice-bob-carol-dave" event="subscribe"
status="active">sip:carol@example.com</watcher>
<watcher id="alice-bob-carol-dave" event="subscribe"
status="active">sip:dave@example.com</watcher>
<watcher id="796ffdf5-22381(a)192.168.1.56" event="subscribe"
status="active">sip:admin@example.com</watcher>
</watcher-list>
</watcherinfo>
--lxwToHs6uINUYOQjbengkND5
Content-Transfer-Encoding: binary
Content-ID: <1438875460.sip:point3@example.com.1064774448>
Content-Type: application/watcherinfo+xml
<?xml version="1.0"?>
<watcherinfo xmlns="urn:ietf:params:xml:ns:watcherinfo" version="1"
state="full">
<watcher-list resource="sip:point3@example.com"
package="presence">
<watcher id="796ffdf6-22384(a)192.168.1.56" event="subscribe"
status="active">sip:admin@example.com</watcher>
<watcher id="796ffdf6-22381(a)192.168.1.56" event="subscribe"
status="active">sip:admin@example.com</watcher>
</watcher-list>
</watcherinfo>
--lxwToHs6uINUYOQjbengkND5--
```
---
Reply to this email directly or view it on GitHub:
https://github.com/kamailio/kamailio/issues/276