searxng/searx/engines/geizhals.py
Markus Heiser ee959ed9fc [fix] engine geizhals: if there are no offers, there is no best price
Fault pattern: if there are no offers, then an exception has been thrown:

    IndexError: list index out of range

This patch makes the addition of “best price” dependent on whether one exists.

Closes: #3685
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2024-07-28 19:00:51 +02:00

97 lines
2.8 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-or-later
"""Geizhals is a German website to compare the price of a product on the
most common German shopping sites and find the lowest price.
The sorting of the search results can be influenced by the following additions
to the search term:
``asc`` or ``price``
To sort by price in ascending order.
``desc``
To sort by price in descending order.
"""
import re
from urllib.parse import urlencode
from lxml import html
from searx.utils import eval_xpath, eval_xpath_list, extract_text
about = {
'website': 'https://geizhals.de',
'wikidata_id': 'Q15977657',
'use_official_api': False,
'official_api_documentation': None,
'require_api_key': False,
'results': 'HTML',
'language': 'de',
}
paging = True
categories = ['shopping']
base_url = "https://geizhals.de"
sort_order = 'relevance'
SORT_RE = re.compile(r"sort:(\w+)")
sort_order_map = {
'relevance': None,
'price': 'p',
'asc': 'p',
'desc': '-p',
}
def request(query, params):
sort = None
sort_order_path = SORT_RE.search(query)
if sort_order_path:
sort = sort_order_map.get(sort_order_path.group(1))
query = SORT_RE.sub("", query)
logger.debug(query)
args = {
'fs': query,
'pg': params['pageno'],
'toggle_all': 1, # load item specs
'sort': sort,
}
params['url'] = f"{base_url}/?{urlencode(args)}"
return params
def response(resp):
results = []
dom = html.fromstring(resp.text)
for result in eval_xpath_list(dom, "//article[contains(@class, 'listview__item')]"):
content = []
for spec in eval_xpath_list(result, ".//div[contains(@class, 'specs-grid__item')]"):
content.append(f"{extract_text(eval_xpath(spec, './dt'))}: {extract_text(eval_xpath(spec, './dd'))}")
metadata = [
extract_text(eval_xpath(result, ".//div[contains(@class, 'stars-rating-label')]")),
extract_text(eval_xpath(result, ".//div[contains(@class, 'listview__offercount')]")),
]
item = {
'template': 'products.html',
'url': (
base_url + "/" + extract_text(eval_xpath(result, ".//a[contains(@class, 'listview__name-link')]/@href"))
),
'title': extract_text(eval_xpath(result, ".//h3[contains(@class, 'listview__name')]")),
'content': ' | '.join(content),
'thumbnail': extract_text(eval_xpath(result, ".//img[contains(@class, 'listview__image')]/@src")),
'metadata': ', '.join(item for item in metadata if item),
}
best_price = extract_text(eval_xpath(result, ".//a[contains(@class, 'listview__price-link')]")).split(" ")
if len(best_price) > 1:
item["price"] = f"Bestes Angebot: {best_price[1]}"
results.append(item)
return results