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
|
# This file is part of Buildbot. Buildbot is free software: you can
# redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, version 2.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright Buildbot Team Members
from twisted.protocols import basic
from zope.interface import implements
from twisted.internet.interfaces import IAddress, ITransport
class NullAddress(object):
"an address for NullTransport"
implements(IAddress)
class NullTransport(object):
"a do-nothing transport to make NetstringReceiver happy"
implements(ITransport)
def write(self, data): raise NotImplementedError
def writeSequence(self, data): raise NotImplementedError
def loseConnection(self): pass
def getPeer(self):
return NullAddress
def getHost(self):
return NullAddress
class NetstringParser(basic.NetstringReceiver):
"""
Adapts the Twisted netstring support (which assumes it is on a socket) to
work on simple strings, too. Call the C{feed} method with arbitrary blocks
of data, and override the C{stringReceived} method to get called for each
embedded netstring. The default implementation collects the netstrings in
the list C{self.strings}.
"""
def __init__(self):
# most of the complexity here is stubbing out the transport code so
# that Twisted-10.2.0 and higher believes that this is a valid protocol
self.makeConnection(NullTransport())
self.strings = []
def feed(self, data):
"""
"""
self.dataReceived(data)
# dataReceived handles errors unusually quietly!
if self.brokenPeer:
raise basic.NetstringParseError
def stringReceived(self, string):
self.strings.append(string)
|
