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searxng/searx/engines/yahoo.py

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# SPDX-License-Identifier: AGPL-3.0-or-later
"""Yahoo Search (Web)
As a bot detection measure, Yahoo has put search behind a cookie
named `YBV`, which is cached for 24h before expiring.
"""
import typing as t
from urllib.parse import unquote, urlencode, urljoin
from lxml import html
from searx.enginelib import EngineCache
from searx.network import get # see https://github.com/searxng/searxng/issues/762
from searx.result_types import EngineResults
from searx.utils import eval_xpath_getindex, eval_xpath_list, extract_text, html_to_text
if t.TYPE_CHECKING:
from searx.extended_types import SXNG_Response
from searx.search.processors import OnlineParams
about = {
"website": "https://search.yahoo.com/",
"wikidata_id": None,
"official_api_documentation": "https://developer.yahoo.com/api/",
"use_official_api": False,
"require_api_key": False,
"results": "HTML",
}
categories = ["general", "web"]
paging = True
time_range_support = True
safesearch = True
time_range_dict = {"day": "d", "week": "w", "month": "m"}
safesearch_dict = {0: "p", 1: "i", 2: "r"}
region2domain = {
"CO": "co.search.yahoo.com", # Colombia
"TH": "th.search.yahoo.com", # Thailand
"VE": "ve.search.yahoo.com", # Venezuela
"CL": "cl.search.yahoo.com", # Chile
"PE": "pe.search.yahoo.com", # Peru
"CA": "ca.search.yahoo.com", # Canada
"DE": "de.search.yahoo.com", # Germany
"FR": "fr.search.yahoo.com", # France
"GB": "uk.search.yahoo.com", # United Kingdom
"UK": "uk.search.yahoo.com",
"BR": "br.search.yahoo.com", # Brazil
"IN": "in.search.yahoo.com", # India
"ES": "espanol.search.yahoo.com", # Espanol
"PH": "ph.search.yahoo.com", # Philippines
"AR": "ar.search.yahoo.com", # Argentina
"MX": "mx.search.yahoo.com", # Mexico
"SG": "sg.search.yahoo.com", # Singapore
"AU": "au.search.yahoo.com", # Australia
"NZ": "nz.search.yahoo.com", # New Zealand
"IE": "ie.search.yahoo.com", # Ireland
"ZA": "za.search.yahoo.com", # South Africa
"US": "search.yahoo.com",
"IT": "it.search.yahoo.com", # Italy
"NL": "nl.search.yahoo.com", # Netherlands
"BE": "be.search.yahoo.com", # Belgium
"CH": "ch.search.yahoo.com", # Switzerland
"AT": "at.search.yahoo.com", # Austria
"SE": "se.search.yahoo.com", # Sweden
"NO": "no.search.yahoo.com", # Norway
"DK": "dk.search.yahoo.com", # Denmark
"FI": "fi.search.yahoo.com", # Finland
"GR": "gr.search.yahoo.com", # Greece
"TR": "tr.search.yahoo.com", # Turkey
"MY": "malaysia.search.yahoo.com", # Malaysia
"ID": "id.search.yahoo.com", # Indonesia
"VN": "vn.search.yahoo.com", # Vietnam
"PL": "pl.search.yahoo.com", # Poland
"RO": "ro.search.yahoo.com", # Romania
}
yahoo_languages = {
"all": "any",
"ar": "ar", # Arabic
"bg": "bg", # Bulgarian
"cs": "cs", # Czech
"da": "da", # Danish
"de": "de", # German
"el": "el", # Greek
"en": "en", # English
"es": "es", # Spanish
"et": "et", # Estonian
"fi": "fi", # Finnish
"fr": "fr", # French
"he": "he", # Hebrew
"hr": "hr", # Croatian
"hu": "hu", # Hungarian
"it": "it", # Italian
"ja": "ja", # Japanese
"ko": "ko", # Korean
"lt": "lt", # Lithuanian
"lv": "lv", # Latvian
"nl": "nl", # Dutch
"no": "no", # Norwegian
"pl": "pl", # Polish
"pt": "pt", # Portuguese
"ro": "ro", # Romanian
"ru": "ru", # Russian
"sk": "sk", # Slovak
"sl": "sl", # Slovenian
"sv": "sv", # Swedish
"th": "th", # Thai
"tr": "tr", # Turkish
"zh": "zh_chs",
}
CACHE: EngineCache
"""YBV cookie"""
_YBV_HOPS = 4
"""Tracking pixel -> gif -> (optional) geo redirect i.e. au.search.yahoo.com -> 200"""
def setup(engine_settings: dict[str, t.Any]):
global CACHE # pylint: disable=global-statement
CACHE = EngineCache(engine_settings["name"])
def request(query: str, params: "OnlineParams") -> None:
parts = params["searxng_locale"].split("-")
lang = yahoo_languages.get(parts[0], "any")
url_params: dict[str, str | int] = {"p": query}
if params["time_range"] in time_range_dict:
url_params["btf"] = time_range_dict[params["time_range"]]
if params["pageno"] == 1:
url_params["iscqry"] = ""
else:
url_params["b"] = params["pageno"] * 7 + 1
url_params["pz"] = 7
url_params["bct"] = 0
url_params["xargs"] = 0
params["cookies"]["sB"] = urlencode(
{
"v": 1,
"vm": safesearch_dict[params["safesearch"]],
"fl": 1,
"vl": f"lang_{lang}",
"pn": 10,
"rw": "new",
"userset": 1,
}
)
domain = "search.yahoo.com"
if len(parts) > 1 and parts[-1] in region2domain:
domain = region2domain[parts[-1]]
logger.debug("domain selected: %s", domain)
params["url"] = f"https://{domain}/search?{urlencode(url_params)}"
if ybv := CACHE.get("YBV"):
params["cookies"]["YBV"] = ybv
def parse_url(url_string: str) -> str:
"""remove yahoo-specific tracking-url"""
endings = ["/RS", "/RK"]
endpositions = []
start = url_string.find("http", url_string.find("/RU=") + 1)
for ending in endings:
endpos = url_string.rfind(ending)
if endpos > -1:
endpositions.append(endpos)
if start == 0 or len(endpositions) == 0:
return url_string
end = min(endpositions)
return unquote(url_string[start:end])
def _yahoo_html(resp: "SXNG_Response") -> "SXNG_Response":
cookies = dict(resp.search_params["cookies"])
params = resp.search_params
for _ in range(_YBV_HOPS):
if ybv := resp.cookies.get("YBV"):
cookies["YBV"] = ybv
if ybv.startswith("v0.2"):
CACHE.set("YBV", ybv, expire=86400)
if resp.status_code == 200:
return resp
loc = resp.headers.get("location")
if resp.status_code not in (302, 307) or not loc:
return resp
# request ourselves instead of following it
resp = get(
urljoin(resp.url, loc),
cookies=cookies,
headers=params["headers"],
allow_redirects=False,
)
resp.search_params = params
return resp
def response(resp: "SXNG_Response") -> EngineResults:
resp = _yahoo_html(resp)
results = EngineResults()
if resp.status_code != 200:
resp.raise_for_status()
dom = html.fromstring(resp.text)
for result in eval_xpath_list(dom, '//div[contains(@class,"algo-sr")]'):
url = eval_xpath_getindex(result, './/div[contains(@class,"compTitle")]//a/@href', 0, default=None)
if url is None:
continue
url = parse_url(url)
title = extract_text(eval_xpath_getindex(result, ".//h3//a/@aria-label", 0, default=None), allow_none=True)
if not title:
title = extract_text(eval_xpath_getindex(result, ".//a/h3", 0, default=None), allow_none=True)
if not title:
continue
content = extract_text(eval_xpath_getindex(result, './/div[contains(@class, "compText")]', 0))
results.add(
results.types.MainResult(
url=url,
# title sometimes contains HTML tags / see
# https://github.com/searxng/searxng/issues/3790
title=html_to_text(title),
content=html_to_text(content),
)
)
for suggestion in eval_xpath_list(dom, '//div[contains(@class, "AlsoTry")]//table//a'):
results.add(results.types.LegacyResult(suggestion=extract_text(suggestion)))
return results
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