Mercurial > libervia-backend

annotate libervia/backend/plugins/plugin_exp_lang_detect.py @ 4100:810921c33a47

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tools (common/template): add filter to get media types: Add 2 filters to get main type and subtype of media type. Jinja2 and Nunjucks don't handle slices in the same way (Python way for Jinja2, JS way for Nunjucks), making it difficult to retrieve main type of a media from media type. Thoses filters work in both cases.
author Goffi <goffi@goffi.org>
date Thu, 22 Jun 2023 15:49:06 +0200
parents 4b842c1fb686
children 0d7bb4df2343
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1 #!/usr/bin/env python3
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2
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4 # SAT plugin to detect language (experimental)
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5 # Copyright (C) 2009-2021 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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19
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20 from libervia.backend.core.i18n import _, D_
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21 from libervia.backend.core.constants import Const as C
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22 from libervia.backend.core.log import getLogger
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23
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24 log = getLogger(__name__)
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25 from libervia.backend.core import exceptions
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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 'Missing module langid, please download/install it with "pip install langid")'
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32 )
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34 identifier = LanguageIdentifier.from_modelstring(model, norm_probs=False)
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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_("Misc")
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49 NAME = "lang_detect"
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50 LABEL = D_("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(_("Language detection plugin initialization"))
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67 self.host = host
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68 host.memory.update_params(PARAMS)
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69 host.trigger.add("message_received", self.message_received_trigger)
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70 host.trigger.add("sendMessage", self.message_send_trigger)
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71
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72 def add_language(self, mess_data):
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73 message = mess_data["message"]
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74 if len(message) == 1 and list(message.keys())[0] == "":
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75 msg = list(message.values())[0].strip()
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76 if msg:
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77 lang = identifier.classify(msg)[0]
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78 mess_data["message"] = {lang: msg}
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79 return mess_data
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80
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81 def message_received_trigger(self, client, message_elt, post_treat):
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82 """ Check if source is linked and repeat message, else do nothing """
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83
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84 lang_detect = self.host.memory.param_get_a(
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85 NAME, CATEGORY, profile_key=client.profile
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86 )
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87 if lang_detect:
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88 post_treat.addCallback(self.add_language)
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89 return True
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90
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91 def message_send_trigger(self, client, data, pre_xml_treatments, post_xml_treatments):
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92 lang_detect = self.host.memory.param_get_a(
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93 NAME, CATEGORY, profile_key=client.profile
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94 )
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95 if lang_detect:
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96 self.add_language(data)
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97 return True