mirror of
https://github.com/ail-project/ail-framework.git
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chg: [Language] replace pycld3 by gcld3 + clean text before language detection
This commit is contained in:
terrtia
parent
d6d67f6a4c
commit
1c46bb4296
5 changed files with 123 additions and 106 deletions
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@ -2,9 +2,11 @@
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# -*-coding:UTF-8 -*
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import os
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import re
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import sys
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import html2text
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import cld3
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import gcld3
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from libretranslatepy import LibreTranslateAPI
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sys.path.append(os.environ['AIL_BIN'])
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@ -259,6 +261,91 @@ class LanguageDetector:
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def get_translator_instance():
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return TRANSLATOR_URL
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def _get_html2text(content, ignore_links=False):
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h = html2text.HTML2Text()
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h.ignore_links = ignore_links
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h.ignore_images = ignore_links
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return h.handle(content)
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def _clean_text_to_translate(content, html=False, keys_blocks=True):
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if html:
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content = _get_html2text(content, ignore_links=True)
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# REMOVE URLS
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regex = r'\b(?:http://|https://)?(?:[a-zA-Z\d-]{,63}(?:\.[a-zA-Z\d-]{,63})+)(?:\:[0-9]+)*(?:/(?:$|[a-zA-Z0-9\.\,\?\'\\\+&%\$#\=~_\-]+))*\b'
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url_regex = re.compile(regex)
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urls = url_regex.findall(content)
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urls = sorted(urls, key=len, reverse=True)
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for url in urls:
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content = content.replace(url, '')
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# REMOVE PGP Blocks
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if keys_blocks:
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regex_pgp_public_blocs = r'-----BEGIN PGP PUBLIC KEY BLOCK-----[\s\S]+?-----END PGP PUBLIC KEY BLOCK-----'
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regex_pgp_signature = r'-----BEGIN PGP SIGNATURE-----[\s\S]+?-----END PGP SIGNATURE-----'
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regex_pgp_message = r'-----BEGIN PGP MESSAGE-----[\s\S]+?-----END PGP MESSAGE-----'
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re.compile(regex_pgp_public_blocs)
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re.compile(regex_pgp_signature)
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re.compile(regex_pgp_message)
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res = re.findall(regex_pgp_public_blocs, content)
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for it in res:
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content = content.replace(it, '')
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res = re.findall(regex_pgp_signature, content)
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for it in res:
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content = content.replace(it, '')
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res = re.findall(regex_pgp_message, content)
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for it in res:
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content = content.replace(it, '')
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return content
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class LanguagesDetector:
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def __init__(self, nb_langs=3, min_proportion=0.2, min_probability=0.7, min_len=0):
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self.lt = LibreTranslateAPI(get_translator_instance())
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try:
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self.lt.languages()
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except Exception:
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self.lt = None
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self.detector = gcld3.NNetLanguageIdentifier(min_num_bytes=0, max_num_bytes=1000)
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self.nb_langs = nb_langs
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self.min_proportion = min_proportion
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self.min_probability = min_probability
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self.min_len = min_len
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def detect_gcld3(self, content):
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languages = []
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content = _clean_text_to_translate(content, html=True)
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if self.min_len > 0:
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if len(content) < self.min_len:
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return languages
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for lang in self.detector.FindTopNMostFreqLangs(content, num_langs=self.nb_langs):
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if lang.proportion >= self.min_proportion and lang.probability >= self.min_probability and lang.is_reliable:
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languages.append(lang.language)
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return languages
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def detect_libretranslate(self, content):
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languages = []
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try:
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# [{"confidence": 0.6, "language": "en"}]
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resp = self.lt.detect(content)
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except: # TODO ERROR MESSAGE
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resp = []
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if resp:
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for language in resp:
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if language.confidence >= self.min_probability:
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languages.append(language)
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return languages
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def detect(self, content):
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# gcld3
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if len(content) >= 200 or not self.lt:
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language = self.detect_gcld3(content)
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# libretranslate
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else:
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language = self.detect_libretranslate(content)
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return language
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class LanguageTranslator:
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def __init__(self):
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@ -273,8 +360,14 @@ class LanguageTranslator:
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print(e)
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return languages
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def detect_cld3(self, content):
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for lang in cld3.get_frequent_languages(content, num_langs=1):
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def detect_gcld3(self, content):
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content = _clean_text_to_translate(content, html=True)
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detector = gcld3.NNetLanguageIdentifier(min_num_bytes=0, max_num_bytes=1000)
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lang = detector.FindLanguage(content)
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# print(lang.language)
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# print(lang.is_reliable)
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# print(lang.proportion)
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# print(lang.probability)
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return lang.language
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def detect_libretranslate(self, content):
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@ -285,10 +378,10 @@ class LanguageTranslator:
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if language:
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return language[0].get('language')
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def detect(self, content): # TODO replace by gcld3
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# cld3
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def detect(self, content):
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# gcld3
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if len(content) >= 200:
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language = self.detect_cld3(content)
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language = self.detect_gcld3(content)
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# libretranslate
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else:
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language = self.detect_libretranslate(content)
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@ -313,18 +406,22 @@ class LanguageTranslator:
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translation = None
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return translation
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LIST_LANGUAGES = []
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def get_translation_languages():
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global LIST_LANGUAGES
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if not LIST_LANGUAGES:
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try:
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LIST_LANGUAGES = LanguageTranslator().languages()
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except Exception as e:
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print(e)
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LIST_LANGUAGES = []
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def get_translation_languages():
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return LIST_LANGUAGES
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if __name__ == '__main__':
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t_content = ''
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# t_content = ''
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langg = LanguageTranslator()
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# langg = LanguagesDetector()
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# lang.translate(t_content, source='ru')
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langg.languages()
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@ -7,7 +7,6 @@ import magic
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import os
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import re
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import sys
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import cld3
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import html2text
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from io import BytesIO
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@ -23,6 +22,7 @@ from lib.ail_core import get_ail_uuid, rreplace
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from lib.objects.abstract_object import AbstractObject
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from lib.ConfigLoader import ConfigLoader
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from lib import item_basic
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from lib.Language import LanguagesDetector
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from lib.data_retention_engine import update_obj_date, get_obj_date_first
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from packages import Date
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@ -338,21 +338,10 @@ class Item(AbstractObject):
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nb_line += 1
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return {'nb': nb_line, 'max_length': max_length}
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# TODO RENAME ME
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def get_languages(self, min_len=600, num_langs=3, min_proportion=0.2, min_probability=0.7):
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all_languages = []
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## CLEAN CONTENT ##
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content = self.get_html2text_content(ignore_links=True)
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content = remove_all_urls_from_content(self.id, item_content=content) ##########################################
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# REMOVE USELESS SPACE
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content = ' '.join(content.split())
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#- CLEAN CONTENT -#
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#print(content)
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#print(len(content))
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if len(content) >= min_len: # # TODO: # FIXME: check num langs limit
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for lang in cld3.get_frequent_languages(content, num_langs=num_langs):
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if lang.proportion >= min_proportion and lang.probability >= min_probability and lang.is_reliable:
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all_languages.append(lang)
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return all_languages
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ld = LanguagesDetector(nb_langs=num_langs, min_proportion=min_proportion, min_probability=min_probability, min_len=min_len)
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return ld.detect(self.get_content())
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def get_mimetype(self, content=None):
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if not content:
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@ -677,24 +666,6 @@ def remove_all_urls_from_content(item_id, item_content=None):
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return item_content
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def get_item_languages(item_id, min_len=600, num_langs=3, min_proportion=0.2, min_probability=0.7):
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all_languages = []
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## CLEAN CONTENT ##
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content = get_item_content_html2text(item_id, ignore_links=True)
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content = remove_all_urls_from_content(item_id, item_content=content)
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# REMOVE USELESS SPACE
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content = ' '.join(content.split())
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#- CLEAN CONTENT -#
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#print(content)
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#print(len(content))
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if len(content) >= min_len:
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for lang in cld3.get_frequent_languages(content, num_langs=num_langs):
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if lang.proportion >= min_proportion and lang.probability >= min_probability and lang.is_reliable:
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all_languages.append(lang)
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return all_languages
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# API
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# def get_item(request_dict):
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@ -945,13 +916,13 @@ def create_item(obj_id, obj_metadata, io_content):
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# delete_item(child_id)
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if __name__ == '__main__':
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# if __name__ == '__main__':
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# content = 'test file content'
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# duplicates = {'tests/2020/01/02/test.gz': [{'algo':'ssdeep', 'similarity':75}, {'algo':'tlsh', 'similarity':45}]}
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#
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# item = Item('tests/2020/01/02/test_save.gz')
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# item.create(content, _save=False)
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filters = {'date_from': '20230101', 'date_to': '20230501', 'sources': ['crawled', 'submitted'], 'start': ':submitted/2023/04/28/submitted_2b3dd861-a75d-48e4-8cec-6108d41450da.gz'}
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gen = get_all_items_objects(filters=filters)
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for obj_id in gen:
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print(obj_id.id)
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# filters = {'date_from': '20230101', 'date_to': '20230501', 'sources': ['crawled', 'submitted'], 'start': ':submitted/2023/04/28/submitted_2b3dd861-a75d-48e4-8cec-6108d41450da.gz'}
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# gen = get_all_items_objects(filters=filters)
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# for obj_id in gen:
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# print(obj_id.id)
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@ -4,8 +4,6 @@
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import os
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import re
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import sys
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import cld3
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import html2text
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from datetime import datetime
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@ -184,14 +182,6 @@ class Message(AbstractObject):
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"""
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return self._set_field('translated', translation) # translation by hash ??? -> avoid translating multiple time
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def get_html2text_content(self, content=None, ignore_links=False):
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if not content:
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content = self.get_content()
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h = html2text.HTML2Text()
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h.ignore_links = ignore_links
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h.ignore_images = ignore_links
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return h.handle(content)
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# def get_ail_2_ail_payload(self):
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# payload = {'raw': self.get_gzip_content(b64=True)}
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# return payload
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@ -287,48 +277,6 @@ class Message(AbstractObject):
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# meta['encoding'] = None
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return meta
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def _languages_cleaner(self, content=None):
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if not content:
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content = self.get_content()
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# REMOVE URLS
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regex = r'\b(?:http://|https://)?(?:[a-zA-Z\d-]{,63}(?:\.[a-zA-Z\d-]{,63})+)(?:\:[0-9]+)*(?:/(?:$|[a-zA-Z0-9\.\,\?\'\\\+&%\$#\=~_\-]+))*\b'
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url_regex = re.compile(regex)
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urls = url_regex.findall(content)
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urls = sorted(urls, key=len, reverse=True)
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for url in urls:
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content = content.replace(url, '')
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# REMOVE PGP Blocks
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regex_pgp_public_blocs = r'-----BEGIN PGP PUBLIC KEY BLOCK-----[\s\S]+?-----END PGP PUBLIC KEY BLOCK-----'
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regex_pgp_signature = r'-----BEGIN PGP SIGNATURE-----[\s\S]+?-----END PGP SIGNATURE-----'
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regex_pgp_message = r'-----BEGIN PGP MESSAGE-----[\s\S]+?-----END PGP MESSAGE-----'
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re.compile(regex_pgp_public_blocs)
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re.compile(regex_pgp_signature)
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re.compile(regex_pgp_message)
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res = re.findall(regex_pgp_public_blocs, content)
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for it in res:
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content = content.replace(it, '')
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res = re.findall(regex_pgp_signature, content)
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for it in res:
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content = content.replace(it, '')
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res = re.findall(regex_pgp_message, content)
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for it in res:
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content = content.replace(it, '')
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return content
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def detect_languages(self, min_len=600, num_langs=3, min_proportion=0.2, min_probability=0.7):
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languages = []
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## CLEAN CONTENT ##
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content = self.get_html2text_content(ignore_links=True)
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content = self._languages_cleaner(content=content)
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# REMOVE USELESS SPACE
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content = ' '.join(content.split())
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# - CLEAN CONTENT - #
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if len(content) >= min_len:
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for lang in cld3.get_frequent_languages(content, num_langs=num_langs):
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if lang.proportion >= min_proportion and lang.probability >= min_probability and lang.is_reliable:
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languages.append(lang)
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return languages
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# def translate(self, content=None): # TODO translation plugin
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# # TODO get text language
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# if not content:
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@ -31,7 +31,8 @@ class Languages(AbstractModule):
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if obj.is_crawled():
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domain = Domain(obj.get_domain())
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for lang in obj.get_languages(min_probability=0.8):
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domain.add_language(lang.language)
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print(lang)
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domain.add_language(lang)
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if __name__ == '__main__':
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@ -42,7 +42,7 @@ scrapy>2.0.0
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scrapy-splash>=0.7.2
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# Languages
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pycld3>0.20
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gcld3
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libretranslatepy
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#Graph
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