|
|
| |
Net::XMPP::Protocol(3) |
User Contributed Perl Documentation |
Net::XMPP::Protocol(3) |
Net::XMPP::Protocol - XMPP Protocol Module
Net::XMPP::Protocol is a module that provides a developer easy access to the
XMPP Instant Messaging protocol. It provides high level functions to the
Net::XMPP Client object. These functions are inherited by that modules.
Protocol.pm seeks to provide enough high level APIs and automation of the low
level APIs that writing a XMPP Client in Perl is trivial. For those that wish
to work with the low level you can do that too, but those functions are
covered in the documentation for each module.
Net::XMPP::Protocol provides functions to login, send and receive
messages, set personal information, create a new user account, manage the
roster, and disconnect. You can use all or none of the functions, there is
no requirement.
For more information on how the details for how Net::XMPP is
written please see the help for Net::XMPP itself.
For more information on writing a Client see
Net::XMPP::Client.
Several of the functions take a mode argument that let you specify how the
function should behave:
- block
- send the packet with an ID, and then block until an answer comes back. You
can optionally specify a timeout so that you do not block forever.
- nonblock
- send the packet with an ID, but then return that id and control to the
master program. Net::XMPP is still tracking this packet, so you must use
the CheckID function to tell when it comes in. (This might not be very
useful...)
- passthru
- send the packet with an ID, but do NOT register it with Net::XMPP, then
return the ID. This is useful when combined with the XPath function
because you can register a one shot function tied to the id you get
back.
use Net::XMPP qw( Client );
$Con = Net::XMPP::Client->new(); # From
$status = $Con->Connect(hostname=>"jabber.org"); # Net::XMPP::Client
$Con->SetCallBacks(send=>\&sendCallBack,
receive=>\&receiveCallBack,
message=>\&messageCallBack,
iq=>\&handleTheIQTag);
$Con->SetMessageCallBacks(normal=>\&messageNormalCB,
chat=>\&messageChatCB);
$Con->SetPresenceCallBacks(available=>\&presenceAvailableCB,
unavailable=>\&presenceUnavailableCB);
$Con->SetIQCallBacks("custom-namespace"=>
{
get=>\&iqCustomGetCB,
set=>\&iqCustomSetCB,
result=>\&iqCustomResultCB,
},
etc...
);
$Con->SetXPathCallBacks("/message[@type='chat']"=>&messageChatCB,
"/message[@type='chat']"=>&otherMessageChatCB,
...
);
$Con->RemoveXPathCallBacks("/message[@type='chat']"=>&otherMessageChatCB);
$Con->SetDirectXPathCallBacks("/anything"=>&anythingCB,
"/anotherthing[@foo='bar']"=>&anotherthingFooBarCB,
...
);
$Con->RemoveDirectXPathCallBacks("/message[@type='chat']"=>&otherMessageChatCB);
$error = $Con->GetErrorCode();
$Con->SetErrorCode("Timeout limit reached");
$status = $Con->Process();
$status = $Con->Process(5);
$Con->Send($object);
$Con->Send("<tag>XML</tag>");
$Con->Send($object,1);
$Con->Send("<tag>XML</tag>",1);
$Con->Disconnect();
$id = $Con->SendWithID($sendObj);
$id = $Con->SendWithID("<tag>XML</tag>");
$receiveObj = $Con->SendAndReceiveWithID($sendObj);
$receiveObj = $Con->SendAndReceiveWithID($sendObj,
10);
$receiveObj = $Con->SendAndReceiveWithID("<tag>XML</tag>");
$receiveObj = $Con->SendAndReceiveWithID("<tag>XML</tag>",
5);
$yesno = $Con->ReceivedID($id);
$receiveObj = $Con->GetID($id);
$receiveObj = $Con->WaitForID($id);
$receiveObj = $Con->WaitForID($id,
20);
$Con->AddNamespace(ns=>"foo:bar",
tag=>"myfoo",
xpath=>{Foo=>{ path=> "foo/text()" },
Bar=>{ path=> "bar/text()" },
FooBar=>{ type=> "master" },
}
);
$Con->MessageSend(to=>"bob@jabber.org",
subject=>"Lunch",
body=>"Let's go grab some...\n",
thread=>"ABC123",
priority=>10);
$Con->PresenceSend();
$Con->PresenceSend(type=>"unavailable");
$Con->PresenceSend(show=>"away");
$Con->PresenceSend(signature=>...signature...);
$Con->Subscription(type=>"subscribe",
to=>"bob@jabber.org");
$Con->Subscription(type=>"unsubscribe",
to=>"bob@jabber.org");
$Con->Subscription(type=>"subscribed",
to=>"bob@jabber.org");
$Con->Subscription(type=>"unsubscribed",
to=>"bob@jabber.org");
$Con->PresenceDB();
$Con->PresenceDBParse(Net::XMPP::Presence);
$Con->PresenceDBDelete("bob\@jabber.org");
$Con->PresenceDBDelete(Net::XMPP::JID);
$Con->PresenceDBClear();
$presence = $Con->PresenceDBQuery("bob\@jabber.org");
$presence = $Con->PresenceDBQuery(Net::XMPP::JID);
@resources = $Con->PresenceDBResources("bob\@jabber.org");
@resources = $Con->PresenceDBResources(Net::XMPP::JID);
@result = $Con->AuthSend();
@result = $Con->AuthSend(username=>"bob",
password=>"bobrulez",
resource=>"Bob");
%hash = $Con->RegisterRequest();
%hash = $Con->RegisterRequest(to=>"transport.jabber.org");
%hash = $Con->RegisterRequest(to=>"transport.jabber.org",
timeout=>10);
@result = $Con->RegisterSend(to=>"somewhere",
username=>"newuser",
resource=>"New User",
password=>"imanewbie",
email=>"newguy@new.com",
key=>"some key");
$Roster = $Con->Roster();
%roster = $Con->RosterParse($iq);
%roster = $Con->RosterGet();
$Con->RosterRequest();
$Con->RosterAdd(jid=>"bob\@jabber.org",
name=>"Bob");
$Con->RosterRemove(jid=>"bob@jabber.org");
$Con->RosterDB();
$Con->RosterDBParse(Net::XMPP::IQ);
$Con->RosterDBAdd("bob\@jabber.org",
name=>"Bob",
groups=>["foo"]
);
$Con->RosterDBRemove("bob\@jabber.org");
$Con->RosterDBRemove(Net::XMPP::JID);
$Con->RosterDBClear();
if ($Con->RosterDBExists("bob\@jabber.org")) { ...
if ($Con->RosterDBExists(Net::XMPP::JID)) { ...
@jids = $Con->RosterDBJIDs();
if ($Con->RosterDBGroupExists("foo")) { ...
@groups = $Con->RosterDBGroups();
@jids = $Con->RosterDBGroupJIDs("foo");
@jids = $Con->RosterDBNonGroupJIDs();
%hash = $Con->RosterDBQuery("bob\@jabber.org");
%hash = $Con->RosterDBQuery(Net::XMPP::JID);
$value = $Con->RosterDBQuery("bob\@jabber.org","name");
$value = $Con->RosterDBQuery(Net::XMPP::JID,"groups");
- GetErrorCode()
- returns a string that will hopefully contain some useful information about
why a function returned an undef to you.
- SetErrorCode
-
SetErrorCode(string)
set a useful error message before you return an undef to the
caller.
- SetCallBacks
-
SetCallBacks(message=>function,
presence=>function,
iq=>function,
send=>function,
receive=>function,
update=>function)
sets the callback functions for the top level tags listed. The
available tags to look for are <message/>, <presence/>, and
<iq/>. If a packet is received with an ID which is found in the
registered ID list (see RegisterID below) then it is not sent to these
functions, instead it is inserted into a LIST and can be retrieved by
some functions we will mention later.
send and receive are used to log what XML is sent and
received. update is used as way to update your program while waiting for
a packet with an ID to be returned (useful for GUI apps).
A major change that came with the last release is that the
session id is passed to the callback as the first argument. This was
done to facilitate the Server module.
The next argument depends on which callback you are talking
about. message, presence, and iq all get passed in Net::XMPP objects
that match those types. send and receive get passed in strings. update
gets passed nothing, not even the session id.
If you set the function to undef, then the callback is removed
from the list.
- SetPresenceCallBacks
-
SetPresenceCallBacks(type=>function etc...)
sets the callback functions for the specified presence type.
The function takes types as the main key, and lets you specify a
function for each type of packet you can get.
"available"
"unavailable"
"subscribe"
"unsubscribe"
"subscribed"
"unsubscribed"
"probe"
"error"
When it gets a <presence/> packet it checks the type=''
for a defined callback. If there is one then it calls the function with
two arguments:
the session ID, and the
Net::XMPP::Presence object.
If you set the function to undef, then the callback is removed
from the list.
NOTE: If you use this, which is a cleaner method, then you
must *NOT* specify a callback for presence in the SetCallBacks
function.
Net::XMPP defines a few default
callbacks for various types:
"subscribe" -
replies with subscribed
"unsubscribe" -
replies with unsubscribed
"subscribed" -
replies with subscribed
"unsubscribed" -
replies with unsubscribed
- SetMessageCallBacks
-
SetMessageCallBacks(type=>function, etc...)
sets the callback functions for the specified message type.
The function takes types as the main key, and lets you specify a
function for each type of packet you can get.
"normal"
"chat"
"groupchat"
"headline"
"error"
When it gets a <message/> packet it checks the type=''
for a defined callback. If there is one then it calls the function with
two arguments:
the session ID, and the
Net::XMPP::Message object.
If you set the function to undef, then the callback is removed
from the list.
NOTE: If you use this, which is a cleaner method, then you
must *NOT* specify a callback for message in the SetCallBacks
function.
- SetIQCallBacks
-
SetIQCallBacks(namespace=>{
get=>function,
set=>function,
result=>function
},
etc...)
sets the callback functions for the specified namespace. The
function takes namespaces as the main key, and lets you specify a
function for each type of packet you can get.
"get"
"set"
"result"
When it gets an <iq/> packet it checks the type='' and
the xmlns='' for a defined callback. If there is one then it calls the
function with two arguments: the session ID, and the Net::XMPP::xxxx
object.
If you set the function to undef, then the callback is removed
from the list.
NOTE: If you use this, which is a cleaner method, then you
must *NOT* specify a callback for iq in the SetCallBacks function.
- SetXPathCallBacks
-
SetXPathCallBacks(xpath=>function, etc...)
registers a callback function for each xpath specified. If
Net::XMPP matches the xpath, then it calls the function with two
arguments:
the session ID, and the
Net::XMPP::Message object.
Xpaths are rooted at each packet:
/message[@type="chat"]
/iq/*[xmlns="jabber:iq:roster"][1]
...
- RemoveXPathCallBacks
-
RemoveXPathCallBacks(xpath=>function, etc...)
unregisters a callback function for each xpath specified.
- SetDirectXPathCallBacks
-
SetDirectXPathCallBacks(xpath=>function, etc...)
registers a callback function for each xpath specified. If
Net::XMPP matches the xpath, then it calls the function with two
arguments:
the session ID, and the
XML::Stream::Node object.
Xpaths are rooted at each packet:
/anything
/anotherthing/foo/[1]
...
The big difference between this and regular XPathCallBacks is
the fact that this passes in the XML directly and not a Net::XMPP based
object.
- RemoveDirectXPathCallBacks
-
RemoveDirectXPathCallBacks(xpath=>function, etc...)
unregisters a callback function for each xpath specified.
- Process
-
Process(integer)
takes the timeout period as an argument. If no
timeout is listed then the function blocks until
a packet is received. Otherwise it waits that
number of seconds and then exits so your program
can continue doing useful things. NOTE: This is
important for GUIs. You need to leave time to
process GUI commands even if you are waiting for
packets. The following are the possible return
values, and what they mean:
1 - Status ok, data received.
0 - Status ok, no data received.
undef - Status not ok, stop processing.
IMPORTANT: You need to check the output of every Process. If
you get an undef then the connection died and you should behave
accordingly.
- Send
-
Send(object, ignoreActivity)
Send(string, ignoreActivity)
takes either a Net::XMPP::xxxxx object or an XML string as an
argument and sends it to the server. If you set ignoreActivty to 1, then
the XML::Stream module will not record this packet as couting towards
user activity.
- SendWithID
-
SendWithID(object)
SendWithID(string)
takes either a Net::XMPP::xxxxx object or an XML string as an
argument, adds the next available ID number and sends that packet to the
server. Returns the ID number assigned.
- SendAndReceiveWithID
-
SendAndReceiveWithID(object, timeout)
SendAndReceiveWithID(string, timeout)
uses SendWithID and WaitForID to provide a complete way to
send and receive packets with IDs. Can take either a Net::XMPP::xxxxx
object or an XML string. Returns the proper Net::XMPP::xxxxx object
based on the type of packet received. The timeout is passed on to
WaitForID, see that function for how the timeout works.
- ReceivedID
-
ReceivedID(integer)
returns 1 if a packet has been received with specified ID, 0
otherwise.
- GetID
-
GetID(integer)
returns the proper Net::XMPP::xxxxx object based on the type
of packet received with the specified ID. If the ID has been received
the GetID returns 0.
- WaitForID
-
WaitForID(integer, timeout)
blocks until a packet with the ID is received. Returns the
proper Net::XMPP::xxxxx object based on the type of packet received. If
the timeout limit is reached then if the packet does come in, it will be
discarded.
NOTE: Only <iq/> officially support ids, so sending a
<message/>, or <presence/> with an id is a risk. The server
will ignore the id tag and pass it through, so both clients must support
the id tag for these functions to be useful.
- AddNamespace
-
AddNamespace(ns=>string,
tag=>string,
xpath=>hash)
This function is very complex. It is a little too complex to
discuss within the confines of this small paragraph. Please refer to the
man page for Net::XMPP::Namespaces for the full documentation on this
subject.
- MessageSend
-
MessageSend(hash)
takes the hash and passes it to SetMessage in
Net::XMPP::Message (refer there for valid settings). Then it sends the
message to the server.
- PresenceSend
-
PresenceSend()
PresenceSend(hash, signature=>string)
No arguments will send an empty Presence to the server to tell
it that you are available. If you provide a hash, then it will pass that
hash to the SetPresence() function as defined in the
Net::XMPP::Presence module. Optionally, you can specify a signature and
a jabber:x:signed will be placed in the <presence/>.
- Subscription
-
Subscription(hash)
taks the hash and passes it to SetPresence in
Net::XMPP::Presence (refer there for valid settings). Then it sends the
subscription to server.
The valid types of subscription are:
subscribe - subscribe to JID's presence
unsubscribe - unsubscribe from JID's presence
subscribed - response to a subscribe
unsubscribed - response to an unsubscribe
- PresenceDB
-
PresenceDB()
Tell the object to initialize the callbacks to automatically
populate the Presence DB.
- PresenceDBParse
-
PresenceDBParse(Net::XMPP::Presence)
for every presence that you receive pass the Presence object
to the DB so that it can track the resources and priorities for you.
Returns either the presence passed in, if it not able to parsed for the
DB, or the current presence as found by the PresenceDBQuery
function.
- PresenceDBDelete
-
PresenceDBDelete(string|Net::XMPP::JID)
delete thes JID entry from the DB.
- PresenceDBClear
-
PresenceDBClear()
delete all entries in the database.
- PresenceDBQuery
-
PresenceDBQuery(string|Net::XMPP::JID)
returns the NX::Presence that was last received for the
highest priority of this JID. You can pass it a string or a NX::JID
object.
- PresenceDBResources
-
PresenceDBResources(string|Net::XMPP::JID)
returns an array of resources in order from highest priority
to lowest.
- AuthSend
-
AuthSend(username=>string,
password=>string,
resource=>string)
takes all of the information and builds a Net::XMPP::IQ::Auth
packet. It then sends that packet to the server with an ID and waits for
that ID to return. Then it looks in resulting packet and determines if
authentication was successful for not. The array returned from AuthSend
looks like this:
[ type , message ]
If type is "ok" then authentication was successful,
otherwise message contains a little more detail about the error.
- RegisterRequest
-
RegisterRequest(to=>string, timeout=>int)
RegisterRequest()
send an <iq/> request to the specified server/transport,
if not specified it sends to the current active server. The function
returns a hash that contains the required fields. Here is an example of
the hash:
$hash{fields} - The raw fields from
the iq:register.
To be used if there
is no x:data in the
packet.
$hash{instructions} - How to fill out
the form.
$hash{form} - The new dynamic
forms.
In $hash{form}, the fields that are
present are the required fields the server needs.
- RegisterSend
-
RegisterSend(hash)
takes the contents of the hash and passes it to the
SetRegister function in the module Net::XMPP::Query jabber:iq:register
namespace. This function returns an array that looks like this:
[ type , message ]
If type is "ok" then registration was successful,
otherwise message contains a little more detail about the error.
- Roster
-
Roster()
returns a Net::XMPP::Roster object. This will automatically
intercept all of the roster and presence packets sent from the server
and give you an accurate Roster. For more information please read the
man page for Net::XMPP::Roster.
- RosterParse
-
RosterParse(IQ object)
returns a hash that contains the roster parsed into the
following data structure:
$roster{'bob@jabber.org'}->{name}
- Name you stored in the roster
$roster{'bob@jabber.org'}->{subscription}
- Subscription status
(to, from, both, none)
$roster{'bob@jabber.org'}->{ask}
- The ask status from this user
(subscribe, unsubscribe)
$roster{'bob@jabber.org'}->{groups}
- Array of groups that
bob@jabber.org is in
- RosterGet
-
RosterGet()
sends an empty Net::XMPP::IQ::Roster tag to the server so the
server will send the Roster to the client. Returns the above hash from
RosterParse.
- RosterRequest
-
RosterRequest()
sends an empty Net::XMPP::IQ::Roster tag to the server so the
server will send the Roster to the client.
- RosterAdd
-
RosterAdd(hash)
sends a packet asking that the jid be added to the roster. The
hash format is defined in the SetItem function in the Net::XMPP::Query
jabber:iq:roster namespace.
- RosterRemove
-
RosterRemove(hash)
sends a packet asking that the jid be removed from the roster.
The hash format is defined in the SetItem function in the
Net::XMPP::Query jabber:iq:roster namespace.
- RosterDB
-
RosterDB()
Tell the object to initialize the callbacks to automatically
populate the Roster DB. If you do this, then make sure that you call
RosterRequest() instead of RosterGet() so that the
callbacks can catch it and parse it.
- RosterDBParse
-
RosterDBParse(IQ object)
If you want to manually control the database, then you can
pass in all iq packets with jabber:iq:roster queries to this
function.
- RosterDBAdd
-
RosterDBAdd(jid,hash)
Add a new JID into the roster DB. The JID is either a string,
or a Net::XMPP::JID object. The hash must be the same format as the has
returned by RosterParse above, and is the actual hash, not a
reference.
- RosterDBRemove
-
RosterDBRemove(jid)
Remove a JID from the roster DB. The JID is either a string,
or a Net::XMPP::JID object.
- RosterDBClear
- Remove all JIDs from the roster DB.
- RosterDBExists
-
RosterDBExists(jid)
return 1 if the JID exists in the roster DB, undef otherwise.
The JID is either a string, or a Net::XMPP::JID object.
- RosterDBJIDs
-
RosterDBJIDs()
returns a list of Net::XMPP::JID objects that represents all
of the JIDs in the DB.
- RosterDBGroups
- returns the complete list of roster groups in the roster.
- RosterDBGroupExists
-
RosterDBGroupExists(group)
return 1 if the group is a group in the roster DB, undef
otherwise.
- RosterDBGroupJIDs
-
RosterDBGroupJIDs(group)
returns a list of Net::XMPP::JID objects that represents all
of the JIDs in the specified roster group.
- RosterDBNonGroupJIDs
- returns a list of Net::XMPP::JID objects that represents all of the JIDs
not in a roster group.
- RosterDBQuery
-
RosterDBQuery(jid)
returns a hash containing the data from the roster DB for the
specified JID. The JID is either a string, or a Net::XMPP::JID object.
The hash format the same as in RosterParse above.
- RosterDBQuery
-
RosterDBQuery(jid,key)
returns the entry from the above hash for the given key. The
available keys are:
name, ask, subsrcription and groups The JID is either a string, or a
Net::XMPP::JID object.
Originally authored by Ryan Eatmon.
Previously maintained by Eric Hacker.
Currently maintained by Darian Anthony Patrick.
This module is free software, you can redistribute it and/or modify it under the
LGPL 2.1.
Visit the GSP FreeBSD Man Page Interface. Output converted with ManDoc. |