89 lines
3.2 KiB
Python
89 lines
3.2 KiB
Python
"""
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SleekXMPP: The Sleek XMPP Library
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Copyright (C) 2011 Nathanael C. Fritz, Lance J.T. Stout
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This file is part of SleekXMPP.
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See the file LICENSE for copying permission.
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"""
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from sleekxmpp.stanza import Message, Presence, Iq
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from sleekxmpp.xmlstream import register_stanza_plugin
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from sleekxmpp.xmlstream.handler import Callback
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from sleekxmpp.xmlstream.matcher import StanzaPath
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from sleekxmpp.plugins.base import base_plugin
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from sleekxmpp.plugins.xep_0066 import stanza
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class xep_0066(base_plugin):
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"""
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XEP-0066: Out-of-Band Data
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Out-of-Band Data is a basic method for transferring files between
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XMPP agents. The URL of the resource in question is sent to the receiving
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entity, which then downloads the resource before responding to the OOB
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request. OOB is also used as a generic means to transmit URLs in other
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stanzas to indicate where to find additional information.
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Also see <http://www.xmpp.org/extensions/xep-0066.html>.
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Events:
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oob_transfer -- Raised when a request to download a resource
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has been received.
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Methods:
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send_oob -- Send a request to another entity to download a file
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or other addressable resource.
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"""
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def plugin_init(self):
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"""Start the XEP-0066 plugin."""
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self.xep = '0066'
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self.description = 'Out-of-Band Transfer'
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self.stanza = stanza
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register_stanza_plugin(Iq, stanza.OOBTransfer)
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register_stanza_plugin(Message, stanza.OOB)
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register_stanza_plugin(Presence, stanza.OOB)
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self.xmpp.register_handler(
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Callback('OOB Transfer',
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StanzaPath('iq@type=set/oob_transfer'),
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self._handle_transfer))
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def post_init(self):
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"""Handle cross-plugin dependencies."""
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base_plugin.post_init(self)
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self.xmpp['xep_0030'].add_feature(stanza.OOBTransfer.namespace)
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self.xmpp['xep_0030'].add_feature(stanza.OOB.namespace)
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def send_oob(self, to, url, desc=None, ifrom=None, **iqargs):
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"""
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Initiate a basic file transfer by sending the URL of
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a file or other resource.
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Arguments:
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url -- The URL of the resource to transfer.
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desc -- An optional human readable description of the item
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that is to be transferred.
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ifrom -- Specifiy the sender's JID.
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block -- If true, block and wait for the stanzas' reply.
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timeout -- The time in seconds to block while waiting for
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a reply. If None, then wait indefinitely.
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callback -- Optional callback to execute when a reply is
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received instead of blocking and waiting for
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the reply.
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"""
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iq = self.xmpp.Iq()
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iq['type'] = 'set'
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iq['to'] = to
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if ifrom:
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iq['from'] = ifrom
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iq['oob_transfer']['url'] = url
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iq['oob_transfer']['desc'] = desc
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return iq.send(**iqargs)
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def _handle_transfer(self, iq):
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"""Handle receiving an out-of-band transfer request."""
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self.xmpp.event('oob_transfer', iq)
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