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annotate sat/plugins/plugin_exp_lang_detect.py @ 2886:b06cb71079fa

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core (xmpp): new networkEnabled() and networkDisabled() methods: those methods can be called by platform specific plugins when network is known to be (un)available. This way, connection attempts can be cancelled when no network is available, saving resources (notably battery on mobile devices), or attempts can be restarted immediately when network is known to be available again.
author Goffi <goffi@goffi.org>
date Sat, 06 Apr 2019 19:05:57 +0200
parents 003b8b4b56a7
children ab2696e34d29
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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 # SAT plugin to detect language (experimental)
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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.core.i18n import _, D_
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21 from sat.core.constants import Const as C
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22 from sat.core.log import getLogger
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23
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24 log = getLogger(__name__)
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25 from sat.core import exceptions
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26
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27 try:
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28 from langid.langid import LanguageIdentifier, model
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29 except ImportError:
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30 raise exceptions.MissingModule(
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31 u'Missing module langid, please download/install it with "pip install langid")'
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32 )
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33
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34 identifier = LanguageIdentifier.from_modelstring(model, norm_probs=False)
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36
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37 PLUGIN_INFO = {
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38 C.PI_NAME: "Language detection plugin",
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39 C.PI_IMPORT_NAME: "EXP-LANG-DETECT",
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40 C.PI_TYPE: "EXP",
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41 C.PI_PROTOCOLS: [],
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42 C.PI_DEPENDENCIES: [],
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43 C.PI_MAIN: "LangDetect",
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44 C.PI_HANDLER: "no",
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45 C.PI_DESCRIPTION: _("""Detect and set message language when unknown"""),
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46 }
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47
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48 CATEGORY = D_(u"Misc")
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49 NAME = u"lang_detect"
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50 LABEL = D_(u"language detection")
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51 PARAMS = """
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52 <params>
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53 <individual>
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54 <category name="{category_name}">
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55 <param name="{name}" label="{label}" type="bool" value="true" />
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56 </category>
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57 </individual>
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58 </params>
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59 """.format(
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60 category_name=CATEGORY, name=NAME, label=_(LABEL)
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61 )
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64 class LangDetect(object):
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65 def __init__(self, host):
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66 log.info(_(u"Language detection plugin initialization"))
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67 self.host = host
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68 host.memory.updateParams(PARAMS)
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69 host.trigger.add("MessageReceived", self.MessageReceivedTrigger)
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70 host.trigger.add("sendMessage", self.MessageSendTrigger)
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71
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72 def addLanguage(self, mess_data):
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73 message = mess_data["message"]
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74 if len(message) == 1 and message.keys()[0] == "":
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75 msg = message.values()[0]
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76 lang = identifier.classify(msg)[0]
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77 mess_data["message"] = {lang: msg}
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78 return mess_data
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79
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80 def MessageReceivedTrigger(self, client, message_elt, post_treat):
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81 """ Check if source is linked and repeat message, else do nothing """
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82
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83 lang_detect = self.host.memory.getParamA(
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84 NAME, CATEGORY, profile_key=client.profile
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85 )
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86 if lang_detect:
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87 post_treat.addCallback(self.addLanguage)
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88 return True
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89
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90 def MessageSendTrigger(self, client, data, pre_xml_treatments, post_xml_treatments):
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91 lang_detect = self.host.memory.getParamA(
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92 NAME, CATEGORY, profile_key=client.profile
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93 )
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94 if lang_detect:
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95 self.addLanguage(data)
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96 return True