Mercurial > libervia-backend

annotate sat_frontends/jp/cmd_pipe.py @ 2901:f6b0088ce247

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code (xmpp): store version after roster item update + fix item removal: roster version is now stored after roster item has been added or removed. This way if something interrupting the process happens, former item update will be received and roster should be updated correctly. Roster item removal was crashing because `load()` is not used (local PersistentDict cache is then not updated, and the key to remove is missing there). The exception is now catched and ignored to avoid loading the data only to remove an item.
author Goffi <goffi@goffi.org>
date Wed, 10 Apr 2019 21:04:41 +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 )
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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
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132
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133 if not self.bare_jids or from_jid.bare in self.bare_jids:
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134 host, port = "localhost", START_PORT
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135 while True:
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136 try:
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137 server = SocketServer.TCPServer((host, port), StreamServer)
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138 except socket.error as e:
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139 if e.errno == errno.EADDRINUSE:
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140 port += 1
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141 else:
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142 raise e
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143 else:
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144 break
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145 xmlui_data = {"answer": C.BOOL_TRUE, "port": unicode(port)}
1670
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146 self.host.bridge.launchAction(xmlui_id, xmlui_data, profile_key=profile)
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147 server.serve_forever()
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148 self.host.quitFromSignal()
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149
1864
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150 def start(self):
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151 self.bare_jids = [jid.JID(jid_).bare for jid_ in self.args.jids]
817
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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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157 def __init__(self, host):
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158 super(Pipe, self).__init__(
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159 host, "pipe", use_profile=False, help=_("stream piping through XMPP")
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160 )