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Commit 46ca32c3 authored by Alexandre Flament's avatar Alexandre Flament
Browse files

[mod] update currencies.json and fetch_currencies.py

use a sparql request on wikidata to get the list of currencies.

currencies.json contains the translation for all supported searx languages.

Supersede #993
parent 1be6ab2a
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+1 −1
Original line number Diff line number Diff line
@@ -41,7 +41,7 @@ jobs:
          python utils/fetch_languages.py
          python utils/fetch_ahmia_blacklist.py
          python utils/fetch_wikidata_units.py
          # python utils/fetch_currencies.py
          python utils/fetch_currencies.py

      - name: Create Pull Request
        id: cpr
+14898 −7618

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+2 −0
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@@ -20,6 +20,8 @@ def name_to_iso4217(name):
    global CURRENCIES
    name = normalize_name(name)
    currency = CURRENCIES['names'].get(name, [name])
    if isinstance(currency, str):
        return currency
    return currency[0]


+115 −127
Original line number Diff line number Diff line
# -*- coding: utf-8 -*-
#!/usr/bin/env python


import json
import re
import unicodedata
import string
from urllib.parse import urlencode
from requests import get

languages = {'de', 'en', 'es', 'fr', 'hu', 'it', 'nl', 'jp'}

url_template = 'https://www.wikidata.org/w/api.php?action=wbgetentities&format=json&{query}&props=labels%7Cdatatype%7Cclaims%7Caliases&languages=' + '|'.join(languages)
url_wmflabs_template = 'http://wdq.wmflabs.org/api?q='
url_wikidata_search_template = 'http://www.wikidata.org/w/api.php?action=query&list=search&format=json&srnamespace=0&srprop=sectiontitle&{query}'

wmflabs_queries = [
    'CLAIM[31:8142]',  # all devise
]
import json

db = {
    'iso4217': {
    },
    'names': {
# set path
from sys import path
from os.path import realpath, dirname, join
path.append(realpath(dirname(realpath(__file__)) + '/../'))

from searx import searx_dir, settings
from searx.engines.wikidata import send_wikidata_query


# ORDER BY (with all the query fields) is important to keep a deterministic result order
# so multiple invokation of this script doesn't change currencies.json
SARQL_REQUEST = """
SELECT DISTINCT ?iso4217 ?unit ?unicode ?label ?alias WHERE {
  ?item wdt:P498 ?iso4217; rdfs:label ?label.
  OPTIONAL { ?item skos:altLabel ?alias FILTER (LANG (?alias) = LANG(?label)). }
  OPTIONAL { ?item wdt:P5061 ?unit. }
  OPTIONAL { ?item wdt:P489 ?symbol.
             ?symbol wdt:P487 ?unicode. }
  MINUS { ?item wdt:P582 ?end_data . }                  # Ignore monney with an end date
  MINUS { ?item wdt:P31/wdt:P279* wd:Q15893266 . }      # Ignore "former entity" (obsolete currency)
  FILTER(LANG(?label) IN (%LANGUAGES_SPARQL%)).
}
ORDER BY ?iso4217 ?unit ?unicode ?label ?alias
"""

# ORDER BY (with all the query fields) is important to keep a deterministic result order
# so multiple invokation of this script doesn't change currencies.json
SPARQL_WIKIPEDIA_NAMES_REQUEST = """
SELECT DISTINCT ?iso4217 ?article_name WHERE {
  ?item wdt:P498 ?iso4217 .
  ?article schema:about ?item ;
           schema:name ?article_name ;
           schema:isPartOf [ wikibase:wikiGroup "wikipedia" ]
  MINUS { ?item wdt:P582 ?end_data . }                  # Ignore monney with an end date
  MINUS { ?item wdt:P31/wdt:P279* wd:Q15893266 . }      # Ignore "former entity" (obsolete currency)
  FILTER(LANG(?article_name) IN (%LANGUAGES_SPARQL%)).
}
ORDER BY ?iso4217 ?article_name
"""


def remove_accents(data):
    return unicodedata.normalize('NFKD', data).lower()


def normalize_name(name):
    return re.sub(' +', ' ', remove_accents(name.lower()).replace('-', ' '))
LANGUAGES = settings['locales'].keys()
LANGUAGES_SPARQL = ', '.join(set(map(lambda l: repr(l.split('_')[0]), LANGUAGES)))


def add_currency_name(name, iso4217):
    global db

    db_names = db['names']
def remove_accents(name):
    return unicodedata.normalize('NFKD', name).lower()

    if not isinstance(iso4217, str):
        print("problem", name, iso4217)
        return

    name = normalize_name(name)
def remove_extra(name):
    for c in ('(', ':'):
        if c in name:
            name = name.split(c)[0].strip()
    return name

    if name == '':
        print("name empty", iso4217)
        return

    iso4217_set = db_names.get(name, None)
    if iso4217_set is not None and iso4217 not in iso4217_set:
        db_names[name].append(iso4217)
    else:
        db_names[name] = [iso4217]
def _normalize_name(name):
    name = re.sub(' +', ' ', remove_accents(name.lower()).replace('-', ' '))
    name = remove_extra(name)
    return name


def add_currency_label(label, iso4217, language):
    global db

    db['iso4217'][iso4217] = db['iso4217'].get(iso4217, {})
    db['iso4217'][iso4217][language] = label


def get_property_value(data, name):
    prop = data.get('claims', {}).get(name, {})
    if len(prop) == 0:
        return None

    value = prop[0].get('mainsnak', {}).get('datavalue', {}).get('value', '')
    if value == '':
        return None

    return value


def parse_currency(data):
    iso4217 = get_property_value(data, 'P498')
def add_currency_name(db, name, iso4217, normalize_name=True):
    db_names = db['names']

    if iso4217 is not None:
        unit = get_property_value(data, 'P558')
        if unit is not None:
            add_currency_name(unit, iso4217)
    if normalize_name:
        name = _normalize_name(name)

        labels = data.get('labels', {})
        for language in languages:
            name = labels.get(language, {}).get('value', None)
            if name is not None:
                add_currency_name(name, iso4217)
                add_currency_label(name, iso4217, language)
    iso4217_set = db_names.setdefault(name, [])
    if iso4217 not in iso4217_set:
        iso4217_set.insert(0, iso4217)

        aliases = data.get('aliases', {})
        for language in aliases:
            for i in range(0, len(aliases[language])):
                alias = aliases[language][i].get('value', None)
                add_currency_name(alias, iso4217)

def add_currency_label(db, label, iso4217, language):
    labels = db['iso4217'].setdefault(iso4217, {})
    labels[language] = label

def fetch_data(wikidata_ids):
    url = url_template.format(query=urlencode({'ids': '|'.join(wikidata_ids)}))
    htmlresponse = get(url)
    jsonresponse = json.loads(htmlresponse.content)
    entities = jsonresponse.get('entities', {})

    for pname in entities:
        pvalue = entities.get(pname)
        parse_currency(pvalue)
def wikidata_request_result_iterator(request):
    result = send_wikidata_query(request.replace('%LANGUAGES_SPARQL%', LANGUAGES_SPARQL))
    if result is not None:
        for r in result['results']['bindings']:
            yield r


def add_q(i):
    return "Q" + str(i)
def fetch_db():
    db = {
        'names': {},
        'iso4217': {},
    }

    for r in wikidata_request_result_iterator(SPARQL_WIKIPEDIA_NAMES_REQUEST):
        iso4217 = r['iso4217']['value']
        article_name = r['article_name']['value']
        article_lang = r['article_name']['xml:lang']
        add_currency_name(db, article_name, iso4217)
        add_currency_label(db, article_name, iso4217, article_lang)

def fetch_data_batch(wikidata_ids):
    while len(wikidata_ids) > 0:
        if len(wikidata_ids) > 50:
            fetch_data(wikidata_ids[0:49])
            wikidata_ids = wikidata_ids[50:]
        else:
            fetch_data(wikidata_ids)
            wikidata_ids = []
    for r in wikidata_request_result_iterator(SARQL_REQUEST):
        iso4217 = r['iso4217']['value']
        if 'label' in r:
            label = r['label']['value']
            label_lang = r['label']['xml:lang']
            add_currency_name(db, label, iso4217)
            add_currency_label(db, label, iso4217, label_lang)

        if 'alias' in r:
            add_currency_name(db, r['alias']['value'], iso4217)

def wdq_query(query):
    url = url_wmflabs_template + query
    htmlresponse = get(url)
    jsonresponse = json.loads(htmlresponse.content)
    qlist = list(map(add_q, jsonresponse.get('items', {})))
    error = jsonresponse.get('status', {}).get('error', None)
    if error is not None and error != 'OK':
        print("error for query '" + query + "' :" + error)
        if 'unicode' in r:
            add_currency_name(db, r['unicode']['value'], iso4217, normalize_name=False)

    fetch_data_batch(qlist)
        if 'unit' in r:
            add_currency_name(db, r['unit']['value'], iso4217, normalize_name=False)

    # reduce memory usage:
    # replace lists with one item by the item.
    # see searx.search.processors.online_currency.name_to_iso4217
    for name in db['names']:
        if len(db['names'][name]) == 1:
            db['names'][name] = db['names'][name][0]

def wd_query(query, offset=0):
    qlist = []
    return db

    url = url_wikidata_search_template.format(query=urlencode({'srsearch': query, 'srlimit': 50, 'sroffset': offset}))
    htmlresponse = get(url)
    jsonresponse = json.loads(htmlresponse.content)
    for r in jsonresponse.get('query', {}).get('search', {}):
        qlist.append(r.get('title', ''))
    fetch_data_batch(qlist)

def get_filename():
    return join(join(searx_dir, "data"), "currencies.json")

# fetch #
for q in wmflabs_queries:
    wdq_query(q)

def main():
    #
    db = fetch_db()
    # static
add_currency_name("euro", 'EUR')
add_currency_name("euros", 'EUR')
add_currency_name("dollar", 'USD')
add_currency_name("dollars", 'USD')
add_currency_name("peso", 'MXN')
add_currency_name("pesos", 'MXN')

# write
f = open("currencies.json", "wb")
json.dump(db, f, indent=4, encoding="utf-8")
f.close()
    add_currency_name(db, "euro", 'EUR')
    add_currency_name(db, "euros", 'EUR')
    add_currency_name(db, "dollar", 'USD')
    add_currency_name(db, "dollars", 'USD')
    add_currency_name(db, "peso", 'MXN')
    add_currency_name(db, "pesos", 'MXN')

    with open(get_filename(), 'w', encoding='utf8') as f:
        json.dump(db, f, ensure_ascii=False, indent=4)

if __name__ == '__main__':
    main()