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funny activity stream encoding for xmpp

This commit is contained in:
psyc://psyced.org/~lynX 2011-05-15 22:59:30 +02:00
parent 5d0dad8b89
commit 19d9420eaa

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@ -27,7 +27,6 @@ Here's an example from paragraph 4.4.2 of RFC 6121.
to='benvolio@example.net'>
<show>away</show>
</presence>
}}}
And here's the same information in a JSON rendition:
@ -59,11 +58,132 @@ np
}}}
=== An average chat message ===
=== A social network activity ===
{{{
<message
from='juliet@example.com/balcony'
id='ktx72v49'
to='romeo@example.net'
type='chat'
xml:lang='en'>
<body>Art thou not Romeo, and a Montague?</body>
</message>
}}}
=== A new status updated activity ===
Example taken from http://onesocialweb.org/spec/1.0/osw-activities.html
You could call this XML namespace hell:
{{{
<iq type='set'
from='hamlet@denmark.lit/snsclient'
to='hamlet@denmark.lit'
id='osw1'>
<pubsub xmlns='http://jabber.org/protocol/pubsub'>
<publish node='urn:xmpp:microblog:0'>
<item>
<entry xmlns="http://www.w3.org/2005/Atom"
xmlns:activity="http://activitystrea.ms/spec/1.0/"
xmlns:osw="http://onesocialweb.org/spec/1.0/">
<title>to be or not to be ?</title>
<activity:verb>http://activitystrea.ms/schema/1.0/post</activity:verb>
<activity:object>
<activity:object-type>http://onesocialweb.org/spec/1.0/object/status</activity:object-type>
<content type="text/plain">to be or not to be ?</content>
</activity:object>
<osw:acl-rule>
<osw:acl-action permission="http://onesocialweb.org/spec/1.0/acl/permission/grant">
http://onesocialweb.org/spec/1.0/acl/action/view
</osw:acl-action>
<osw:acl-subject type="http://onesocialweb.org/spec/1.0/acl/subject/everyone"/>
</osw:acl-rule>
</entry>
</item>
</publish>
</pubsub>
</iq>
}}}
http://activitystrea.ms/head/json-activity.html proposes a JSON encoding
of this. We'll have to add a routing header to it.
{{{
["activity",{"from":"hamlet@denmark.lit/snsclient"},{"verb":"post",
"title":"to be or not to be ?","object":{"type":"status",
"content":"to be or not to be ?","contentType":"text/plain"}]
}}}
http://about.psyc.eu/Activity suggests a PSYC mapping for activity
streams. Should a "status post" be considered equivalent to a presence
description announcement or just a message in the "microblogging" channel?
We'll use the latter here:
{{{
:_context psyc://denmark.lit/~hamlet#_follow
:_subject to be or not to be ?
:_type_content text/plain
_message
to be or not to be ?
|
}}}
=== A message with JSON-unfriendly characters ===
{{{
<message
from='romeo@example.net/orchard'
id='sl3nx51f'
to='juliet@example.com/balcony'
type='chat'
xml:lang='en'>
<body>"Neither, fair saint, if either thee dislike.", he said.
And
the
rest
is
history.</body>
</message>
}}}
=== A message with XML-unfriendly characters ===
{{{
<message
from='juliet@example.com/balcony'
id='z94nb37h'
to='romeo@example.net'
type='chat'
xml:lang='en'>
<body>Wherefore art thou, Romeo?</body>
<body xml:lang='cs'>
Pro&#x010D;e&#x017D; jsi ty, Romeo?
</body>
</message>
}}}
=== A message with PSYC-unfriendly strings ===
{{{
<message
from='juliet@example.com/balcony'
id='c8xg3nf8'
to='romeo@example.net'
type='chat'
xml:lang='en'>
<subject>I implore you with a pointless
newline in a header variable</subject>
<body>Wherefore art thou, Romeo?
|
And for practicing purposes we added a PSYC packet delimiter.</body>
</message>
}}}
=== A packet containing a JPEG photograph ===
... TBD ...
=== A random data structure ===
In this test we'll not consider XMPP at all and simply compare the
@ -107,6 +227,8 @@ _profile_user
== Conclusions ==
... TBD ...
== Criticism ==
Are we comparing apples and oranges? Yes and no, depends on what you
@ -139,3 +261,9 @@ the performance of a chat client using the two protocols,
for instance by using libpurple with XMPP and PSYC accounts.
To this purpose we first need to integrate libpsyc into libpurple.
== Futures ==
After a month of development libpsyc is already performing pretty
well, but we presume various optimizations, like rewriting parts
in assembler, are possible.