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[fix] fix flickr_noapi decoding (#1655)

Characters that were not ASCII were incorrectly decoded.
Add an helper function: searx.utils.ecma_unescape (Python implementation of unescape Javascript function).
This commit is contained in:
Alexandre Flament 2019-08-02 13:37:13 +02:00 committed by GitHub
parent 4dc792e1e2
commit 2179079a91
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3 changed files with 32 additions and 6 deletions

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@ -16,7 +16,8 @@ from json import loads
from time import time
import re
from searx.engines import logger
from searx.url_utils import urlencode, unquote
from searx.url_utils import urlencode
from searx.utils import ecma_unescape, html_to_text
logger = logger.getChild('flickr-noapi')
@ -75,11 +76,10 @@ def response(resp):
for index in legend:
photo = model_export['main'][index[0]][int(index[1])][index[2]][index[3]][int(index[4])]
author = unquote(photo.get('realname', ''))
source = unquote(photo.get('username', '')) + ' @ Flickr'
title = unquote(photo.get('title', ''))
content = unquote(photo.get('description', ''))
author = ecma_unescape(photo.get('realname', ''))
source = ecma_unescape(photo.get('username', '')) + ' @ Flickr'
title = ecma_unescape(photo.get('title', ''))
content = html_to_text(ecma_unescape(photo.get('description', '')))
img_src = None
# From the biggest to the lowest format
for image_size in image_sizes:

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@ -1,3 +1,4 @@
# -*- coding: utf-8 -*-
import csv
import hashlib
import hmac
@ -44,6 +45,9 @@ logger = logger.getChild('utils')
blocked_tags = ('script',
'style')
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())
@ -415,3 +419,18 @@ def to_string(obj):
return obj.__str__()
if hasattr(obj, '__repr__'):
return obj.__repr__()
def ecma_unescape(s):
"""
python implementation of the unescape javascript function
https://www.ecma-international.org/ecma-262/6.0/#sec-unescape-string
https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Objets_globaux/unescape
"""
# s = unicode(s)
# "%u5409" becomes "吉"
s = ecma_unescape4_re.sub(lambda e: unichr(int(e.group(1), 16)), s)
# "%20" becomes " ", "%F3" becomes "ó"
s = ecma_unescape2_re.sub(lambda e: unichr(int(e.group(1), 16)), s)
return s

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@ -90,6 +90,13 @@ class TestUtils(SearxTestCase):
self.assertEqual(utils.match_language('iw-IL', ['he-IL']), 'he-IL')
self.assertEqual(utils.match_language('he-IL', ['iw-IL'], aliases), 'iw-IL')
def test_ecma_unscape(self):
self.assertEqual(utils.ecma_unescape('text%20with%20space'), 'text with space')
self.assertEqual(utils.ecma_unescape('text using %xx: %F3'),
u'text using %xx: ó')
self.assertEqual(utils.ecma_unescape('text using %u: %u5409, %u4E16%u754c'),
u'text using %u: 吉, 世界')
class TestHTMLTextExtractor(SearxTestCase):