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import re
import base64
from sleekxmpp.exceptions import XMPPError
from sleekxmpp.xmlstream import register_stanza_plugin, ET, ElementBase
from sleekxmpp.thirdparty.suelta.util import bytes
VALID_B64 = re.compile(r'[A-Za-z0-9\+\/]*=*')
def to_b64(data):
return bytes(base64.b64encode(bytes(data))).decode('utf-8')
def from_b64(data):
return bytes(base64.b64decode(bytes(data))).decode('utf-8')
class Open(ElementBase):
name = 'open'
namespace = 'http://jabber.org/protocol/ibb'
plugin_attrib = 'ibb_open'
interfaces = set(('block_size', 'sid', 'stanza'))
def get_block_size(self):
return int(self._get_attr('block-size'))
def set_block_size(self, value):
self._set_attr('block-size', str(value))
def del_block_size(self):
self._del_attr('block-size')
class Data(ElementBase):
name = 'data'
namespace = 'http://jabber.org/protocol/ibb'
plugin_attrib = 'ibb_data'
interfaces = set(('seq', 'sid', 'data'))
sub_interfaces = set(['data'])
def get_seq(self):
return int(self._get_attr('seq', '0'))
def set_seq(self, value):
self._set_attr('seq', str(value))
def get_data(self):
b64_data = self.xml.text
if VALID_B64.match(b64_data).group() == b64_data:
return from_b64(b64_data)
else:
raise XMPPError('not-acceptable')
def set_data(self, value):
self.xml.text = to_64(value)
def del_data(self):
self.xml.text = ''
class Close(ElementBase):
name = 'close'
namespace = 'http://jabber.org/protocol/ibb'
plugin_attrib = 'ibb_close'
interfaces = set(['sid'])
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