[mod] Add searx.data module

Instead of loading the data/*.json in different location,
load these files in the new searx.data module.

searx/data/__init__.py

@@ -0,0 +1,21 @@
+import json
+from pathlib import Path
+
+
+__init__ = ['ENGINES_LANGUGAGES', 'CURRENCIES', 'USER_AGENTS', 'bangs_loader']
+data_dir = Path(__file__).parent
+
+
+def load(filename):
+    # add str(...) for Python 3.5
+    with open(str(data_dir / filename), encoding='utf-8') as fd:
+        return json.load(fd)
+
+
+def bangs_loader():
+    return load('bangs.json')
+
+
+ENGINES_LANGUAGES = load('engines_languages.json')
+CURRENCIES = load('currencies.json')
+USER_AGENTS = load('useragents.json')

searx/engines/__init__.py

@@ -19,13 +19,12 @@ along with searx. If not, see < http://www.gnu.org/licenses/ >.
 import sys
 import threading
 from os.path import realpath, dirname
-from io import open
 from babel.localedata import locale_identifiers
 from flask_babel import gettext
 from operator import itemgetter
-from json import loads
 from searx import settings
 from searx import logger
+from searx.data import ENGINES_LANGUAGES
 from searx.poolrequests import get
 from searx.utils import load_module, match_language, get_engine_from_settings
 
@@ -38,7 +37,6 @@ engines = {}
 
 categories = {'general': []}
 
-languages = loads(open(engine_dir + '/../data/engines_languages.json', 'r', encoding='utf-8').read())
 babel_langs = [lang_parts[0] + '-' + lang_parts[-1] if len(lang_parts) > 1 else lang_parts[0]
                for lang_parts in (lang_code.split('_') for lang_code in locale_identifiers())]
 
@@ -108,8 +106,8 @@ def load_engine(engine_data):
             sys.exit(1)
 
     # assign supported languages from json file
-    if engine_data['name'] in languages:
-        setattr(engine, 'supported_languages', languages[engine_data['name']])
+    if engine_data['name'] in ENGINES_LANGUAGES:
+        setattr(engine, 'supported_languages', ENGINES_LANGUAGES[engine_data['name']])
 
     # find custom aliases for non standard language codes
     if hasattr(engine, 'supported_languages'):

searx/engines/currency_convert.py

@@ -1,11 +1,11 @@
 import json
 import re
-import os
 import unicodedata
 
-from io import open
 from datetime import datetime
 
+from searx.data import CURRENCIES
+
 
 categories = []
 url = 'https://duckduckgo.com/js/spice/currency/1/{0}/{1}'
@@ -13,8 +13,6 @@ weight = 100
 
 parser_re = re.compile('.*?(\\d+(?:\\.\\d+)?) ([^.0-9]+) (?:in|to) ([^.0-9]+)', re.I)
 
-db = 1
-
 
 def normalize_name(name):
     name = name.lower().replace('-', ' ').rstrip('s')
@@ -23,17 +21,17 @@ def normalize_name(name):
 
 
 def name_to_iso4217(name):
-    global db
+    global CURRENCIES
 
     name = normalize_name(name)
-    currencies = db['names'].get(name, [name])
-    return currencies[0]
+    currency = CURRENCIES['names'].get(name, [name])
+    return currency[0]
 
 
 def iso4217_to_name(iso4217, language):
-    global db
+    global CURRENCIES
 
-    return db['iso4217'].get(iso4217, {}).get(language, iso4217)
+    return CURRENCIES['iso4217'].get(iso4217, {}).get(language, iso4217)
 
 
 def request(query, params):
@@ -82,15 +80,3 @@ def response(resp):
     results.append({'answer': answer, 'url': url})
 
     return results
-
-
-def load():
-    global db
-
-    current_dir = os.path.dirname(os.path.realpath(__file__))
-    json_data = open(current_dir + "/../data/currencies.json", 'r', encoding='utf-8').read()
-
-    db = json.loads(json_data)
-
-
-load()

searx/external_bang.py

@@ -1,7 +1,4 @@
-import json
-from os.path import join
-
-from searx import searx_dir
+from searx.data import bangs_loader
 
 # bangs data coming from the following url convert to json with
 # https://raw.githubusercontent.com/jivesearch/jivesearch/master/bangs/bangs.toml
@@ -9,8 +6,7 @@ from searx import searx_dir
 # NOTE only use the get_bang_url
 
 bangs_data = {}
-with open(join(searx_dir, 'data/bangs.json'), encoding='utf-8') as json_file:
-    for bang in json.load(json_file)['bang']:
+for bang in bangs_loader()['bang']:
     for trigger in bang["triggers"]:
         bangs_data[trigger] = {x: y for x, y in bang.items() if x != "triggers"}
 

searx/utils.py

@@ -1,13 +1,10 @@
 # -*- coding: utf-8 -*-
-import os
 import sys
 import re
-import json
 import importlib
 
 from numbers import Number
 from os.path import splitext, join
-from io import open
 from random import choice
 from html.parser import HTMLParser
 from urllib.parse import urljoin, urlparse, unquote
@@ -18,6 +15,7 @@ from babel.core import get_global
 
 
 from searx import settings
+from searx.data import USER_AGENTS
 from searx.version import VERSION_STRING
 from searx.languages import language_codes
 from searx import logger
@@ -31,9 +29,6 @@ blocked_tags = ('script',
 ecma_unescape4_re = re.compile(r'%u([0-9a-fA-F]{4})', re.UNICODE)
 ecma_unescape2_re = re.compile(r'%([0-9a-fA-F]{2})', re.UNICODE)
 
-useragents = json.loads(open(os.path.dirname(os.path.realpath(__file__))
-                             + "/data/useragents.json", 'r', encoding='utf-8').read())
-
 xpath_cache = dict()
 lang_to_lc_cache = dict()
 
@@ -50,7 +45,7 @@ def gen_useragent(os=None):
 
     See searx/data/useragents.json
     """
-    return str(useragents['ua'].format(os=os or choice(useragents['os']), version=choice(useragents['versions'])))
+    return str(USER_AGENTS['ua'].format(os=os or choice(USER_AGENTS['os']), version=choice(USER_AGENTS['versions'])))
 
 
 class HTMLTextExtractorException(Exception):