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annotate sat_frontends/tools/host_listener.py @ 2755:12d1ca646af1

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plugin manhole: manhole debug plugin, first draft: this plugin open a telnet server which open a Python interpreter and allows to inspect the backend while it is running. To enable it, the settings "manhole_debug_dangerous_port_int" must be set to the desired TCP port in [DEFAULT] section of sat.conf. A warning will be logged if the server is enabled. Currently only a telnet server is available, and no login is required. This may change in the futur to enable login/password and ssh access, or even an XMPP access. This is a debugging feature and must only be used during development. Once in the Python interpreter, the "host" variable is accessible.
author Goffi <goffi@goffi.org>
date Fri, 04 Jan 2019 18:59:24 +0100
parents 56f94936df1e
children 003b8b4b56a7
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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4 # SAT: a jabber client
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5 # Copyright (C) 2009-2018 Jérôme Poisson (goffi@goffi.org)
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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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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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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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20 """This module is only used launch callbacks when host is ready, used for early initialisation stuffs"""
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23 listeners = []
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26 def addListener(cb):
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27 """Add a listener which will be called when host is ready
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29 @param cb: callback which will be called when host is ready with host as only argument
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30 """
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31 listeners.append(cb)
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34 def callListeners(host):
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35 """Must be called by frontend when host is ready.
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37 The call will launch all the callbacks, then remove the listeners list.
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38 @param host(QuickApp): the instancied QuickApp subclass
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39 """
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40 global listeners
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41 while True:
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42 try:
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43 cb = listeners.pop(0)
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44 cb(host)
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45 except IndexError:
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46 break
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47 del listeners