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# SPDX-License-Identifier: AGPL-3.0-or-later
"""
DuckDuckGo Extra (images, videos, news)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"""
import typing as t
from datetime import datetime
from urllib.parse import urlencode
from urllib.parse import quote_plus
from searx.utils import get_embeded_stream_url, html_to_text, gen_useragent, extr
from searx.network import get # see https://github.com/searxng/searxng/issues/762
from searx.engines.duckduckgo import fetch_traits # pylint: disable=unused-import
from searx.engines.duckduckgo import get_ddg_lang, get_vqd, set_vqd
if t.TYPE_CHECKING:
from searx.extended_types import SXNG_Response
from searx.search.processors import OnlineParams
# about
about = {
"website": "https://duckduckgo.com/",
"wikidata_id": "Q12805",
"use_official_api": False,
"require_api_key": False,
"results": "JSON (site requires js to get images)",
}
language_support = True
# engine dependent config
categories = []
ddg_category = ""
"""The category must be any of ``images``, ``videos`` and ``news``
"""
paging = True
safesearch = True
safesearch_cookies = {0: "-2", 1: None, 2: "1"}
safesearch_args = {0: "1", 1: None, 2: "1"}
search_path_map = {"images": "i", "videos": "v", "news": "news"}
_HTTP_User_Agent: str = gen_useragent()
send_accept_language_header = False
def init(engine_settings: dict[str, t.Any]):
if engine_settings["ddg_category"] not in ["images", "videos", "news"]:
raise ValueError(f"Unsupported DuckDuckGo category: {engine_settings['ddg_category']}")
def fetch_vqd(
query: str,
params: "OnlineParams",
):
logger.debug("fetch_vqd: request value from from duckduckgo.com")
resp = get(
url=f"https://duckduckgo.com/?q={quote_plus(query)}&iar=images&t=h_",
headers=params["headers"],
timeout=2,
)
value = ""
if resp.status_code == 200:
value = extr(resp.text, 'vqd="', '"')
if value:
logger.debug("vqd value from duckduckgo.com request: '%s'", value)
else:
logger.error("vqd: can't parse value from ddg response (return empty string)")
return ""
else:
logger.error("vqd: got HTTP %s from duckduckgo.com", resp.status_code)
if value:
set_vqd(query=query, value=value, params=params)
else:
logger.error("none vqd value from duckduckgo.com: HTTP %s", resp.status_code)
return value
def request(query: str, params: "OnlineParams") -> None:
if len(query) >= 500:
# DDG does not accept queries with more than 499 chars
params["url"] = None
return
# HTTP headers
# ============
headers = params["headers"]
# The vqd value is generated from the query and the UA header. To be able to
# reuse the vqd value, the UA header must be static.
headers["User-Agent"] = _HTTP_User_Agent
vqd = get_vqd(query=query, params=params) or fetch_vqd(query=query, params=params)
headers["Accept"] = "*/*"
headers["Referer"] = "https://duckduckgo.com/"
headers["Host"] = "duckduckgo.com"
# headers["X-Requested-With"] = "XMLHttpRequest"
# DDG XHTMLRequest
# ================
eng_region: str = traits.get_region(
params["searxng_locale"],
traits.all_locale,
) # pyright: ignore[reportAssignmentType]
eng_lang: str = get_ddg_lang(traits, params["searxng_locale"]) or "wt-wt"
args: dict[str, str | int] = {
"o": "json",
"q": query,
"u": "bing",
"l": eng_region,
"bpia": "1",
"vqd": vqd,
"a": "h_",
}
params["cookies"]["ad"] = eng_lang # zh_CN
params["cookies"]["ah"] = eng_region # "us-en,de-de"
params["cookies"]["l"] = eng_region # "hk-tzh"
args["ct"] = "EN"
if params["searxng_locale"] != "all":
args["ct"] = params["searxng_locale"].split("-")[0].upper()
if params["pageno"] > 1:
args["s"] = (params["pageno"] - 1) * 100
safe_search = safesearch_cookies.get(params["safesearch"])
if safe_search is not None:
params["cookies"]["p"] = safe_search # "-2", "1"
args["p"] = safe_search
params["url"] = f"https://duckduckgo.com/{search_path_map[ddg_category]}.js?{urlencode(args)}"
logger.debug("param headers: %s", params["headers"])
logger.debug("param data: %s", params["data"])
logger.debug("param cookies: %s", params["cookies"])
def _image_result(result):
return {
'template': 'images.html',
'url': result['url'],
'title': result['title'],
'content': '',
'thumbnail_src': result['thumbnail'],
'img_src': result['image'],
'resolution': '%s x %s' % (result['width'], result['height']),
'source': result['source'],
}
def _video_result(result):
return {
'template': 'videos.html',
'url': result['content'],
'title': result['title'],
'content': result['description'],
'thumbnail': result['images'].get('small') or result['images'].get('medium'),
'iframe_src': get_embeded_stream_url(result['content']),
'source': result['provider'],
'length': result['duration'],
'metadata': result.get('uploader'),
}
def _news_result(result):
return {
'url': result['url'],
'title': result['title'],
'content': html_to_text(result['excerpt']),
'source': result['source'],
'publishedDate': datetime.fromtimestamp(result['date']),
}
def response(resp):
results = []
res_json = resp.json()
for result in res_json['results']:
if ddg_category == 'images':
results.append(_image_result(result))
elif ddg_category == 'videos':
results.append(_video_result(result))
elif ddg_category == 'news':
results.append(_news_result(result))
else:
raise ValueError(f"Invalid duckduckgo category: {ddg_category}")
return results
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