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
|
"""
SleekXMPP: The Sleek XMPP Library
Copyright (C) 2010 Nathanael C. Fritz
This file is part of SleekXMPP.
See the file LICENSE for copying permission.
"""
from sleekxmpp.xmlstream import JID
from sleekxmpp.roster import RosterItem
class RosterNode(object):
"""
A roster node is a roster for a single JID.
Attributes:
xmpp -- The main SleekXMPP instance.
jid -- The JID that owns the roster node.
db -- Optional interface to an external datastore.
auto_authorize -- Determines how authorizations are handled:
True -- Accept all subscriptions.
False -- Reject all subscriptions.
None -- Subscriptions must be
manually authorized.
Defaults to True.
auto_subscribe -- Determines if bi-directional subscriptions
are created after automatically authrorizing
a subscription request.
Defaults to True
Methods:
add -- Add a JID to the roster.
update -- Update a JID's subscription information.
subscribe -- Subscribe to a JID.
unsubscribe -- Unsubscribe from a JID.
remove -- Remove a JID from the roster.
presence -- Return presence information for a JID's resources.
"""
def __init__(self, xmpp, jid, db=None):
"""
Create a roster node for a JID.
Arguments:
xmpp -- The main SleekXMPP instance.
jid -- The JID that owns the roster.
db -- Optional interface to an external datastore.
"""
self.xmpp = xmpp
self.jid = jid
self.db = db
self.auto_authorize = True
self.auto_subscribe = True
self._jids = {}
if self.db:
for jid in self.db.entries(self.jid):
self.add(jid)
def __getitem__(self, key):
"""
Return the roster item for a subscribed JID.
A new item entry will be created if one does not already exist.
"""
if isinstance(key, JID):
key = key.bare
if key not in self._jids:
self.add(key, save=True)
return self._jids[key]
def keys(self):
"""Return a list of all subscribed JIDs."""
return self._jids.keys()
def has_jid(self, jid):
"""Returns whether the roster has a JID."""
return jid in self._jids
def __iter__(self):
"""Iterate over the roster items."""
return self._jids.__iter__()
def set_backend(self, db=None):
"""
Set the datastore interface object for the roster node.
Arguments:
db -- The new datastore interface.
"""
self.db = db
for jid in self.db.entries(self.jid):
self.add(jid)
for jid in self._jids:
self._jids[jid].set_backend(db)
def add(self, jid, name='', groups=None, afrom=False, ato=False,
pending_in=False, pending_out=False, whitelisted=False,
save=False):
"""
Add a new roster item entry.
Arguments:
jid -- The JID for the roster item.
name -- An alias for the JID.
groups -- A list of group names.
afrom -- Indicates if the JID has a subscription state
of 'from'. Defaults to False.
ato -- Indicates if the JID has a subscription state
of 'to'. Defaults to False.
pending_in -- Indicates if the JID has sent a subscription
request to this connection's JID.
Defaults to False.
pending_out -- Indicates if a subscription request has been sent
to this JID.
Defaults to False.
whitelisted -- Indicates if a subscription request from this JID
should be automatically authorized.
Defaults to False.
save -- Indicates if the item should be persisted
immediately to an external datastore,
if one is used.
Defaults to False.
"""
if isinstance(jid, JID):
key = jid.bare
state = {'name': name,
'groups': groups or [],
'from': afrom,
'to': ato,
'pending_in': pending_in,
'pending_out': pending_out,
'whitelisted': whitelisted,
'subscription': 'none'}
self._jids[jid] = RosterItem(self.xmpp, jid, self.jid,
state=state, db=self.db)
if save:
self._jids[jid].save()
def subscribe(self, jid):
"""
Subscribe to the given JID.
Arguments:
jid -- The JID to subscribe to.
"""
self[jid].subscribe()
def unsubscribe(self, jid):
"""
Unsubscribe from the given JID.
Arguments:
jid -- The JID to unsubscribe from.
"""
self[jid].unsubscribe()
def remove(self, jid):
"""
Remove a JID from the roster.
Arguments:
jid -- The JID to remove.
"""
self[jid].remove()
if not self.xmpp.is_component:
self.update(jid, subscription='remove')
def update(self, jid, name=None, subscription=None, groups=[]):
"""
Update a JID's subscription information.
Arguments:
jid -- The JID to update.
name -- Optional alias for the JID.
subscription -- The subscription state. May be one of: 'to',
'from', 'both', 'none', or 'remove'.
groups -- A list of group names.
"""
self[jid]['name'] = name
self[jid]['groups'] = group
self[jid].save()
if not self.xmpp.is_component:
iq = self.Iq()
iq['type'] = 'set'
iq['roster']['items'] = {jid: {'name': name,
'subscription': subscription,
'groups': groups}}
response = iq.send()
return response and response['type'] == 'result'
def presence(self, jid, resource=None):
"""
Retrieve the presence information of a JID.
May return either all online resources' status, or
a single resource's status.
Arguments:
jid -- The JID to lookup.
resource -- Optional resource for returning
only the status of a single connection.
"""
if resource is None:
return self[jid].resources
default_presence = {'status': '',
'priority': 0,
'show': ''}
return self[jid].resources.get(resource,
default_presence)
def reset(self):
"""
Reset the state of the roster to forget any current
presence information. Useful after a disconnection occurs.
"""
for jid in self:
self[jid].reset()
|
