Merge pull request #380 from dalf/fix-339

[fix] interface language zh_CN and zh_TW don't work
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Alexandre Flament 2021-10-12 21:50:05 +02:00 committed by GitHub
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11 changed files with 68 additions and 31 deletions

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@ -1,10 +1,10 @@
# -*- coding: utf-8 -*- # -*- coding: utf-8 -*-
# SPDX-License-Identifier: AGPL-3.0-or-later # SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint # lint: pylint
"""Initialize :py:obj:`LOCALE_NAMES`, :py:obj:`UI_LOCALE_CODES` and """Initialize :py:obj:`LOCALE_NAMES`, :py:obj:`RTL_LOCALES`.
:py:obj:`RTL_LOCALES`.""" """
from typing import List, Set from typing import Set
import os import os
import pathlib import pathlib
@ -12,17 +12,14 @@ from babel import Locale
LOCALE_NAMES = { LOCALE_NAMES = {
"oc": "Occitan", "oc": "Occitan",
"nl_BE": "Vlaams (Dutch, Belgium)", "nl-BE": "Vlaams (Dutch, Belgium)",
} }
"""Mapping of locales and their description. Locales e.g. 'fr' or 'pt_BR' """Mapping of locales and their description. Locales e.g. 'fr' or 'pt-BR'
(delimiter is *underline* '_')""" (delimiter is *underline* '-')"""
UI_LOCALE_CODES: List[str] = []
"""List of locales e.g. 'fr' or 'pt-BR' (delimiter is '-')"""
RTL_LOCALES: Set[str] = set() RTL_LOCALES: Set[str] = set()
"""List of *Right-To-Left* locales e.g. 'he' or 'fa_IR' (delimiter is """List of *Right-To-Left* locales e.g. 'he' or 'fa-IR' (delimiter is
*underline* '_')""" *underline* '-')"""
def _get_name(locale, language_code): def _get_name(locale, language_code):
@ -37,7 +34,7 @@ def _get_locale_name(locale, locale_name):
"""Get locale name e.g. 'Français - fr' or 'Português (Brasil) - pt-BR' """Get locale name e.g. 'Français - fr' or 'Português (Brasil) - pt-BR'
:param locale: instance of :py:class:`Locale` :param locale: instance of :py:class:`Locale`
:param locale_name: name e.g. 'fr' or 'pt_BR' :param locale_name: name e.g. 'fr' or 'pt_BR' (delimiter is *underscore*)
""" """
native_language, native_territory = _get_name(locale, locale_name) native_language, native_territory = _get_name(locale, locale_name)
english_language, english_territory = _get_name(locale, 'en') english_language, english_territory = _get_name(locale, 'en')
@ -54,22 +51,19 @@ def _get_locale_name(locale, locale_name):
def initialize_locales(directory): def initialize_locales(directory):
"""Initialize global names :py:obj:`LOCALE_NAMES`, :py:obj:`UI_LOCALE_CODES` and """Initialize global names :py:obj:`LOCALE_NAMES`, :py:obj:`RTL_LOCALES`.
:py:obj:`RTL_LOCALES`.
""" """
global UI_LOCALE_CODES # pylint: disable=global-statement
for dirname in sorted(os.listdir(directory)): for dirname in sorted(os.listdir(directory)):
# Based on https://flask-babel.tkte.ch/_modules/flask_babel.html#Babel.list_translations # Based on https://flask-babel.tkte.ch/_modules/flask_babel.html#Babel.list_translations
if not os.path.isdir( os.path.join(directory, dirname, 'LC_MESSAGES') ): if not os.path.isdir( os.path.join(directory, dirname, 'LC_MESSAGES') ):
continue continue
info = LOCALE_NAMES.get(dirname) locale_name = dirname.replace('_', '-')
info = LOCALE_NAMES.get(locale_name)
if not info: if not info:
locale = Locale.parse(dirname) locale = Locale.parse(dirname)
LOCALE_NAMES[dirname] = _get_locale_name(locale, dirname) LOCALE_NAMES[locale_name] = _get_locale_name(locale, dirname)
if locale.text_direction == 'rtl': if locale.text_direction == 'rtl':
RTL_LOCALES.add(dirname) RTL_LOCALES.add(locale_name)
UI_LOCALE_CODES = [l.replace('_', '-') for l in LOCALE_NAMES]
initialize_locales(pathlib.Path(__file__).parent / 'translations') initialize_locales(pathlib.Path(__file__).parent / 'translations')

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@ -1,6 +1,6 @@
{% from 'oscar/macros.html' import icon %} {% from 'oscar/macros.html' import icon %}
<!DOCTYPE html> <!DOCTYPE html>
<html lang="{{ preferences.get_value('locale') }}" xml:lang="{{ preferences.get_value('locale') }}"{% if rtl %} dir="rtl"{% endif %} class="nojs"> <html lang="{{ locale_rfc5646 }}" xml:lang="{{ locale_rfc5646 }}"{% if rtl %} dir="rtl"{% endif %} class="nojs">
<head> <head>
<meta charset="UTF-8" /> <meta charset="UTF-8" />
<meta name="description" content="SearXNG - a privacy-respecting, hackable metasearch engine" /> <meta name="description" content="SearXNG - a privacy-respecting, hackable metasearch engine" />

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@ -1,5 +1,5 @@
<!DOCTYPE html> <!DOCTYPE html>
<html class="no-js" lang="en" {% if rtl %} dir="rtl"{% endif %}> <html class="no-js" lang="{{ locale_rfc5646 }}" {% if rtl %} dir="rtl"{% endif %}>
<head> <head>
<meta charset="UTF-8" /> <meta charset="UTF-8" />
<meta name="description" content="SearXNG — a privacy-respecting, hackable metasearch engine"> <meta name="description" content="SearXNG — a privacy-respecting, hackable metasearch engine">

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@ -369,6 +369,16 @@ def _get_lang_to_lc_dict(lang_list):
return value return value
# babel's get_global contains all sorts of miscellaneous locale and territory related data
# see get_global in: https://github.com/python-babel/babel/blob/master/babel/core.py
def _get_from_babel(lang_code, key):
match = get_global(key).get(lang_code.replace('-', '_'))
# for some keys, such as territory_aliases, match may be a list
if isinstance(match, str):
return match.replace('_', '-')
return match
def _match_language(lang_code, lang_list=[], custom_aliases={}): # pylint: disable=W0102 def _match_language(lang_code, lang_list=[], custom_aliases={}): # pylint: disable=W0102
"""auxiliary function to match lang_code in lang_list""" """auxiliary function to match lang_code in lang_list"""
# replace language code with a custom alias if necessary # replace language code with a custom alias if necessary
@ -379,9 +389,11 @@ def _match_language(lang_code, lang_list=[], custom_aliases={}): # pylint: disa
return lang_code return lang_code
# try to get the most likely country for this language # try to get the most likely country for this language
subtags = get_global('likely_subtags').get(lang_code) subtags = _get_from_babel(lang_code, 'likely_subtags')
if subtags: if subtags:
subtag_parts = subtags.split('_') if subtags in lang_list:
return subtags
subtag_parts = subtags.split('-')
new_code = subtag_parts[0] + '-' + subtag_parts[-1] new_code = subtag_parts[0] + '-' + subtag_parts[-1]
if new_code in custom_aliases: if new_code in custom_aliases:
new_code = custom_aliases[new_code] new_code = custom_aliases[new_code]
@ -402,16 +414,22 @@ def match_language(locale_code, lang_list=[], custom_aliases={}, fallback='en-US
locale_parts = locale_code.split('-') locale_parts = locale_code.split('-')
lang_code = locale_parts[0] lang_code = locale_parts[0]
# if locale_code has script, try matching without it
if len(locale_parts) > 2:
language = _match_language(lang_code + '-' + locale_parts[-1], lang_list, custom_aliases)
if language:
return language
# try to get language using an equivalent country code # try to get language using an equivalent country code
if len(locale_parts) > 1: if len(locale_parts) > 1:
country_alias = get_global('territory_aliases').get(locale_parts[-1]) country_alias = _get_from_babel(locale_parts[-1], 'territory_aliases')
if country_alias: if country_alias:
language = _match_language(lang_code + '-' + country_alias[0], lang_list, custom_aliases) language = _match_language(lang_code + '-' + country_alias[0], lang_list, custom_aliases)
if language: if language:
return language return language
# try to get language using an equivalent language code # try to get language using an equivalent language code
alias = get_global('language_aliases').get(lang_code) alias = _get_from_babel(lang_code, 'language_aliases')
if alias: if alias:
language = _match_language(alias, lang_list, custom_aliases) language = _match_language(alias, lang_list, custom_aliases)
if language: if language:

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@ -109,7 +109,7 @@ from searx.flaskfix import patch_application
from searx.autocomplete import search_autocomplete, backends as autocomplete_backends from searx.autocomplete import search_autocomplete, backends as autocomplete_backends
from searx.languages import language_codes as languages from searx.languages import language_codes as languages
from searx.locales import LOCALE_NAMES, UI_LOCALE_CODES, RTL_LOCALES from searx.locales import LOCALE_NAMES, RTL_LOCALES
from searx.search import SearchWithPlugins, initialize as search_initialize from searx.search import SearchWithPlugins, initialize as search_initialize
from searx.network import stream as http_stream, set_context_network_name from searx.network import stream as http_stream, set_context_network_name
from searx.search.checker import get_result as checker_get_result from searx.search.checker import get_result as checker_get_result
@ -223,6 +223,12 @@ def get_locale():
if locale == 'oc': if locale == 'oc':
request.form['use-translation'] = 'oc' request.form['use-translation'] = 'oc'
locale = 'fr_FR' locale = 'fr_FR'
if locale == '':
# if there is an error loading the preferences
# the locale is going to be ''
locale = 'en'
# babel uses underscore instead of hyphen.
locale = locale.replace('-', '_')
logger.debug("%s uses locale `%s`", urllib.parse.quote(request.url), locale) logger.debug("%s uses locale `%s`", urllib.parse.quote(request.url), locale)
return locale return locale
@ -240,6 +246,16 @@ def _get_browser_language(req, lang_list):
return 'en' return 'en'
def _get_locale_rfc5646(locale):
"""Get locale name for <html lang="...">
Chrom* browsers don't detect the language when there is a subtag (ie a territory).
For example "zh-TW" is detected but not "zh-Hant-TW".
This function returns a locale without the subtag.
"""
parts = locale.split('-')
return parts[0].lower() + '-' + parts[-1].upper()
# code-highlighter # code-highlighter
@app.template_filter('code_highlighter') @app.template_filter('code_highlighter')
def code_highlighter(codelines, language=None): def code_highlighter(codelines, language=None):
@ -420,6 +436,8 @@ def render(template_name, override_theme=None, **kwargs):
kwargs['translations'] = json.dumps(get_translations(), separators=(',', ':')) kwargs['translations'] = json.dumps(get_translations(), separators=(',', ':'))
locale = request.preferences.get_value('locale') locale = request.preferences.get_value('locale')
kwargs['locale_rfc5646'] = _get_locale_rfc5646(locale)
if locale in RTL_LOCALES and 'rtl' not in kwargs: if locale in RTL_LOCALES and 'rtl' not in kwargs:
kwargs['rtl'] = True kwargs['rtl'] = True
if 'current_language' not in kwargs: if 'current_language' not in kwargs:
@ -512,8 +530,7 @@ def pre_request():
# locale is defined neither in settings nor in preferences # locale is defined neither in settings nor in preferences
# use browser headers # use browser headers
if not preferences.get_value("locale"): if not preferences.get_value("locale"):
locale = _get_browser_language(request, UI_LOCALE_CODES) locale = _get_browser_language(request, LOCALE_NAMES.keys())
locale = locale.replace('-', '_')
preferences.parse_dict({"locale": locale}) preferences.parse_dict({"locale": locale})
# request.user_plugins # request.user_plugins

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@ -92,6 +92,14 @@ class TestUtils(SearxTestCase):
self.assertEqual(utils.match_language('es', [], fallback='fallback'), 'fallback') self.assertEqual(utils.match_language('es', [], fallback='fallback'), 'fallback')
self.assertEqual(utils.match_language('ja', ['jp'], {'ja': 'jp'}), 'jp') self.assertEqual(utils.match_language('ja', ['jp'], {'ja': 'jp'}), 'jp')
# handle script tags
self.assertEqual(utils.match_language('zh-CN', ['zh-Hans-CN', 'zh-Hant-TW']), 'zh-Hans-CN')
self.assertEqual(utils.match_language('zh-TW', ['zh-Hans-CN', 'zh-Hant-TW']), 'zh-Hant-TW')
self.assertEqual(utils.match_language('zh-Hans-CN', ['zh-CN', 'zh-TW']), 'zh-CN')
self.assertEqual(utils.match_language('zh-Hant-TW', ['zh-CN', 'zh-TW']), 'zh-TW')
self.assertEqual(utils.match_language('zh-Hans', ['zh-CN', 'zh-TW', 'zh-HK']), 'zh-CN')
self.assertEqual(utils.match_language('zh-Hant', ['zh-CN', 'zh-TW', 'zh-HK']), 'zh-TW')
aliases = {'en-GB': 'en-UK', 'he': 'iw'} aliases = {'en-GB': 'en-UK', 'he': 'iw'}
# guess country # guess country

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@ -211,12 +211,12 @@ class ViewsTestCase(SearxTestCase):
result = self.app.get('/preferences', headers={'Accept-Language': 'zh-tw;q=0.8'}) result = self.app.get('/preferences', headers={'Accept-Language': 'zh-tw;q=0.8'})
self.assertEqual(result.status_code, 200) self.assertEqual(result.status_code, 200)
self.assertIn( self.assertIn(
b'<option value="zh_TW" selected="selected">', b'<option value="zh-Hant-TW" selected="selected">',
result.data, result.data,
'Interface locale ignored browser preference.' 'Interface locale ignored browser preference.'
) )
self.assertIn( self.assertIn(
b'<option value="zh-TW" selected="selected">', b'<option value="zh-Hant-TW" selected="selected">',
result.data, result.data,
'Search language ignored browser preference.' 'Search language ignored browser preference.'
) )