Mercurial > libervia-backend

annotate src/plugins/plugin_exp_lang_detect.py @ 2528:65e278997715

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component file sharing: comments metadata: new <comments> element is added to file metadata, it contains the URL to the comments virtual node and the count of comments (this way client knows if it make sense to request comments or not). Fixed triggers in plugin XEP-0264 (return value was missing). New trigger in plugin XEP-0329 to allow component to add metadata (used here for comments url).
author Goffi <goffi@goffi.org>
date Fri, 16 Mar 2018 18:43:11 +0100
parents 0046283a285d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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) 2009-2018 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 log = getLogger(__name__)
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24 from sat.core import exceptions
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25
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26 try:
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27 from langid.langid import LanguageIdentifier, model
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28 except ImportError:
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29 raise exceptions.MissingModule(u'Missing module langid, please download/install it with "pip install langid")')
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30
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31 identifier = LanguageIdentifier.from_modelstring(model, norm_probs=False)
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32
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33
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34 PLUGIN_INFO = {
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35 C.PI_NAME: "Language detection plugin",
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36 C.PI_IMPORT_NAME: "EXP-LANG-DETECT",
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37 C.PI_TYPE: "EXP",
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38 C.PI_PROTOCOLS: [],
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39 C.PI_DEPENDENCIES: [],
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40 C.PI_MAIN: "LangDetect",
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41 C.PI_HANDLER: "no",
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42 C.PI_DESCRIPTION: _("""Detect and set message language when unknown""")
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43 }
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44
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45 CATEGORY = D_(u"Misc")
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46 NAME = u"lang_detect"
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47 LABEL = D_(u"language detection")
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48 PARAMS = """
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49 <params>
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50 <individual>
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51 <category name="{category_name}">
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52 <param name="{name}" label="{label}" type="bool" value="true" />
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53 </category>
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54 </individual>
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55 </params>
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56 """.format(category_name=CATEGORY,
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57 name=NAME,
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58 label=_(LABEL),
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59 )
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60
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62 class LangDetect(object):
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63
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64 def __init__(self, host):
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65 log.info(_(u"Language detection plugin initialization"))
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66 self.host = host
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67 host.memory.updateParams(PARAMS)
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68 host.trigger.add("MessageReceived", self.MessageReceivedTrigger)
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69 host.trigger.add("sendMessage", self.MessageSendTrigger)
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70
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71 def addLanguage(self, mess_data):
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72 message = mess_data['message']
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73 if len(message) == 1 and message.keys()[0] == '':
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74 msg = message.values()[0]
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75 lang = identifier.classify(msg)[0]
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76 mess_data["message"] = {lang: msg}
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77 return mess_data
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78
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79 def MessageReceivedTrigger(self, client, message_elt, post_treat):
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80 """ Check if source is linked and repeat message, else do nothing """
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82 lang_detect = self.host.memory.getParamA(NAME, CATEGORY, profile_key=client.profile)
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83 if lang_detect:
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84 post_treat.addCallback(self.addLanguage)
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85 return True
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86
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87 def MessageSendTrigger(self, client, data, pre_xml_treatments, post_xml_treatments):
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88 lang_detect = self.host.memory.getParamA(NAME, CATEGORY, profile_key=client.profile)
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89 if lang_detect:
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90 self.addLanguage(data)
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91 return True