95 lines
3.2 KiB
Python
95 lines
3.2 KiB
Python
#!/usr/bin/env python3
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# SAT plugin to detect language (experimental)
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# Copyright (C) 2009-2026 Jérôme Poisson (goffi@goffi.org)
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from libervia.backend.core.i18n import _, D_
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from libervia.backend.core.constants import Const as C
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from libervia.backend.core.log import getLogger
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log = getLogger(__name__)
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from libervia.backend.core import exceptions
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try:
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from langid.langid import LanguageIdentifier, model
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except ImportError:
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raise exceptions.MissingModule(
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'Missing module langid, please download/install it with "pip install langid")'
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)
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identifier = LanguageIdentifier.from_modelstring(model, norm_probs=False)
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PLUGIN_INFO = {
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C.PI_NAME: "Language detection plugin",
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C.PI_IMPORT_NAME: "EXP-LANG-DETECT",
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C.PI_TYPE: "EXP",
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C.PI_PROTOCOLS: [],
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C.PI_DEPENDENCIES: [],
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C.PI_MAIN: "LangDetect",
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C.PI_HANDLER: "no",
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C.PI_DESCRIPTION: _("""Detect and set message language when unknown"""),
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}
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CATEGORY = D_("Misc")
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NAME = "lang_detect"
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LABEL = D_("language detection")
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PARAMS = """
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<params>
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<individual>
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<category name="{category_name}">
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<param name="{name}" label="{label}" type="bool" value="true" />
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</category>
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</individual>
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</params>
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""".format(category_name=CATEGORY, name=NAME, label=_(LABEL))
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class LangDetect(object):
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def __init__(self, host):
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log.info(_("Language detection plugin initialization"))
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self.host = host
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host.memory.update_params(PARAMS)
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host.trigger.add("message_received", self.message_received_trigger)
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host.trigger.add("sendMessage", self.message_send_trigger)
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def add_language(self, mess_data):
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message = mess_data["message"]
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if len(message) == 1 and list(message.keys())[0] == "":
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msg = list(message.values())[0].strip()
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if msg:
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lang = identifier.classify(msg)[0]
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mess_data["message"] = {lang: msg}
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return mess_data
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def message_received_trigger(self, client, message_elt, post_treat):
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"""Check if source is linked and repeat message, else do nothing"""
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lang_detect = self.host.memory.param_get_a(
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NAME, CATEGORY, profile_key=client.profile
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)
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if lang_detect:
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post_treat.addCallback(self.add_language)
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return True
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def message_send_trigger(self, client, data, pre_xml_treatments, post_xml_treatments):
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lang_detect = self.host.memory.param_get_a(
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NAME, CATEGORY, profile_key=client.profile
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)
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if lang_detect:
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self.add_language(data)
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return True
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