Mercurial > libervia-backend

annotate sat_frontends/jp/cmd_pipe.py @ 2995:5ecce65631a2

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frontends (xmlui): fixed crash when CURRENT_LABEL is None: fix 323
author Goffi <goffi@goffi.org>
date Thu, 11 Jul 2019 09:21:10 +0200
parents 003b8b4b56a7
children ab2696e34d29
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1960
3e168cde7a7d jp: fixed shebang python call
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # jp: a SAT command line tool
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5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 from sat_frontends.jp import base
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21
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22 from sat_frontends.jp.constants import Const as C
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23 import sys
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24 from sat.core.i18n import _
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25 from sat_frontends.tools import jid
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26 import xml.etree.ElementTree as ET # FIXME: used temporarily to manage XMLUI
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27 from functools import partial
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28 import socket
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29 import SocketServer
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30 import errno
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31
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32 __commands__ = ["Pipe"]
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33
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34 START_PORT = 9999
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35
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36
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37 class PipeOut(base.CommandBase):
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38 def __init__(self, host):
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39 super(PipeOut, self).__init__(host, "out", help=_("send a pipe a stream"))
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40 self.need_loop = True
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41
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42 def add_parser_options(self):
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43 self.parser.add_argument(
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44 "jid", type=base.unicode_decoder, help=_("the destination jid")
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45 )
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46
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47 def streamOutCb(self, port):
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48 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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49 s.connect(("127.0.0.1", int(port)))
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50 while True:
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51 buf = sys.stdin.read(4096)
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52 if not buf:
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53 break
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54 try:
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55 s.sendall(buf)
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56 except socket.error as e:
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57 if e.errno == errno.EPIPE:
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58 sys.stderr.write(str(e) + "\n")
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59 self.host.quit(1)
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60 else:
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61 raise e
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62 self.host.quit()
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63
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64 def start(self):
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65 """ Create named pipe, and send stdin to it """
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66 self.host.bridge.streamOut(
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67 self.host.get_full_jid(self.args.jid),
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68 self.profile,
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69 callback=self.streamOutCb,
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70 errback=partial(
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71 self.errback,
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72 msg=_(u"can't start stream: {}"),
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73 exit_code=C.EXIT_BRIDGE_ERRBACK,
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74 ),
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75 )
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76
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77
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78 class StreamServer(SocketServer.BaseRequestHandler):
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79 def handle(self):
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80 while True:
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81 data = self.request.recv(4096)
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82 if not data:
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83 break
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84 sys.stdout.write(data)
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85 try:
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86 sys.stdout.flush()
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87 except IOError as e:
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88 sys.stderr.write(str(e) + "\n")
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89 break
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90 #  calling shutdown will do a deadlock as we don't use separate thread
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91 # this is a workaround (cf. https://stackoverflow.com/a/36017741)
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92 self.server._BaseServer__shutdown_request = True
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93
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94
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95 class PipeIn(base.CommandAnswering):
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96 def __init__(self, host):
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97 super(PipeIn, self).__init__(host, "in", help=_("receive a pipe stream"))
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98 self.action_callbacks = {"STREAM": self.onStreamAction}
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99
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100 def add_parser_options(self):
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101 self.parser.add_argument(
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102 "jids",
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103 type=base.unicode_decoder,
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104 nargs="*",
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105 help=_('Jids accepted (none means "accept everything")'),
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106 )
0
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107
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108 def getXmluiId(self, action_data):
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109 # FIXME: we temporarily use ElementTree, but a real XMLUI managing module
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110 # should be available in the future
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111 # TODO: XMLUI module
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112 try:
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113 xml_ui = action_data["xmlui"]
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114 except KeyError:
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115 self.disp(_(u"Action has no XMLUI"), 1)
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116 else:
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117 ui = ET.fromstring(xml_ui.encode("utf-8"))
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118 xmlui_id = ui.get("submit")
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119 if not xmlui_id:
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120 self.disp(_(u"Invalid XMLUI received"), error=True)
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121 return xmlui_id
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122
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123 def onStreamAction(self, action_data, action_id, security_limit, profile):
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124 xmlui_id = self.getXmluiId(action_data)
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125 if xmlui_id is None:
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126 return self.host.quitFromSignal(1)
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127 try:
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128 from_jid = jid.JID(action_data["meta_from_jid"])
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129 except KeyError:
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130 self.disp(_(u"Ignoring action without from_jid data"), 1)
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131 return
3690b4d4157e jp (pipe): pipe commands now use the new CommandAnswering API (with actionNew)
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parents: 1396
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132
3690b4d4157e jp (pipe): pipe commands now use the new CommandAnswering API (with actionNew)
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133 if not self.bare_jids or from_jid.bare in self.bare_jids:
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parents: 2483
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134 host, port = "localhost", START_PORT
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Goffi <goffi@goffi.org>
parents: 2483
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135 while True:
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Goffi <goffi@goffi.org>
parents: 2483
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136 try:
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Goffi <goffi@goffi.org>
parents: 2483
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137 server = SocketServer.TCPServer((host, port), StreamServer)
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parents: 2483
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138 except socket.error as e:
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Goffi <goffi@goffi.org>
parents: 2483
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139 if e.errno == errno.EADDRINUSE:
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Goffi <goffi@goffi.org>
parents: 2483
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140 port += 1
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parents: 2483
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141 else:
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Goffi <goffi@goffi.org>
parents: 2483
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142 raise e
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Goffi <goffi@goffi.org>
parents: 2483
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143 else:
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Goffi <goffi@goffi.org>
parents: 2483
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144 break
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parents: 2562
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145 xmlui_data = {"answer": C.BOOL_TRUE, "port": unicode(port)}
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parents: 1396
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146 self.host.bridge.launchAction(xmlui_id, xmlui_data, profile_key=profile)
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parents: 2483
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147 server.serve_forever()
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Goffi <goffi@goffi.org>
parents: 2483
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148 self.host.quitFromSignal()
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parents: 1396
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149
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96ba685162f6 jp: all commands now use the new start method and set need_loop in __init__ when needed
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parents: 1766
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150 def start(self):
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parents: 1396
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151 self.bare_jids = [jid.JID(jid_).bare for jid_ in self.args.jids]
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parents: 815
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152
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153
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154 class Pipe(base.CommandBase):
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155 subcommands = (PipeOut, PipeIn)
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156
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parents: 815
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157 def __init__(self, host):
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parents: 2562
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158 super(Pipe, self).__init__(
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parents: 2562
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159 host, "pipe", use_profile=False, help=_("stream piping through XMPP")
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Goffi <goffi@goffi.org>
parents: 2562
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160 )