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"""
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Swisscows (Web, Images)
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@website https://swisscows.ch
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@provide-api no
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@using-api no
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@results HTML (using search portal)
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@stable no (HTML can change)
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@parse url, title, content
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"""
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from json import loads
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import re
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from lxml.html import fromstring
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from searx.url_utils import unquote, urlencode
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from searx.utils import match_language
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# engine dependent config
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categories = ['general', 'images']
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paging = True
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language_support = True
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# search-url
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base_url = 'https://swisscows.ch/'
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search_string = '?{query}&page={page}'
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supported_languages_url = base_url
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# regex
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regex_json = re.compile(b'initialData: {"Request":(.|\n)*},\s*environment')
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regex_json_remove_start = re.compile(b'^initialData:\s*')
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regex_json_remove_end = re.compile(b',\s*environment$')
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regex_img_url_remove_start = re.compile(b'^https?://i\.swisscows\.ch/\?link=')
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# do search-request
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def request(query, params):
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region = match_language(params['language'], supported_languages)
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ui_language = region.split('-')[0]
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search_path = search_string.format(
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query=urlencode({'query': query, 'uiLanguage': ui_language, 'region': region}),
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page=params['pageno']
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)
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# image search query is something like 'image?{query}&page={page}'
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if params['category'] == 'images':
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search_path = 'image' + search_path
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params['url'] = base_url + search_path
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return params
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# get response from search-request
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def response(resp):
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results = []
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json_regex = regex_json.search(resp.text)
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# check if results are returned
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if not json_regex:
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return []
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json_raw = regex_json_remove_end.sub(b'', regex_json_remove_start.sub(b'', json_regex.group()))
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json = loads(json_raw.decode('utf-8'))
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# parse results
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for result in json['Results'].get('items', []):
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result_title = result['Title'].replace(u'\uE000', '').replace(u'\uE001', '')
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# parse image results
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if result.get('ContentType', '').startswith('image'):
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img_url = unquote(regex_img_url_remove_start.sub(b'', result['Url'].encode('utf-8')).decode('utf-8'))
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# append result
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results.append({'url': result['SourceUrl'],
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'title': result['Title'],
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'content': '',
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'img_src': img_url,
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'template': 'images.html'})
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# parse general results
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else:
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result_url = result['Url'].replace(u'\uE000', '').replace(u'\uE001', '')
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result_content = result['Description'].replace(u'\uE000', '').replace(u'\uE001', '')
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# append result
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results.append({'url': result_url,
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'title': result_title,
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'content': result_content})
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# parse images
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for result in json.get('Images', []):
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# decode image url
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img_url = unquote(regex_img_url_remove_start.sub(b'', result['Url'].encode('utf-8')).decode('utf-8'))
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# append result
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results.append({'url': result['SourceUrl'],
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'title': result['Title'],
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'content': '',
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'img_src': img_url,
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'template': 'images.html'})
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# return results
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return results
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# get supported languages from their site
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def _fetch_supported_languages(resp):
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supported_languages = []
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dom = fromstring(resp.text)
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options = dom.xpath('//div[@id="regions-popup"]//ul/li/a')
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for option in options:
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code = option.xpath('./@data-search-language')[0]
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if code.startswith('nb-'):
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code = code.replace('nb', 'no', 1)
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supported_languages.append(code)
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return supported_languages
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