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# SPDX-License-Identifier: AGPL-3.0-or-later
"""ChinaSo_, a search engine for the chinese language area.
.. attention::
ChinaSo engine does not return real URL, the links from these search
engines violate the privacy of the users!!
We try to find a solution for this problem, please follow `issue #4694`_.
As long as the problem has not been resolved, these engines are
not active in a standard setup (``inactive: true``).
.. _ChinaSo: https://www.chinaso.com/
.. _issue #4694: https://github.com/searxng/searxng/issues/4694
Configuration
=============
The engine has the following additional settings:
- :py:obj:`chinaso_category` (:py:obj:`ChinasoCategoryType`)
- :py:obj:`chinaso_news_source` (:py:obj:`ChinasoNewsSourceType`)
In the example below, all three ChinaSO engines are using the :ref:`network
<engine network>` from the ``chinaso news`` engine.
.. code:: yaml
- name: chinaso news
engine: chinaso
shortcut: chinaso
categories: [news]
chinaso_category: news
chinaso_news_source: all
- name: chinaso images
engine: chinaso
network: chinaso news
shortcut: chinasoi
categories: [images]
chinaso_category: images
- name: chinaso videos
engine: chinaso
network: chinaso news
shortcut: chinasov
categories: [videos]
chinaso_category: videos
Implementations
===============
"""
import typing as t
import base64
import secrets
from urllib.parse import urlencode
from datetime import datetime
from searx.exceptions import SearxEngineAPIException
from searx.utils import html_to_text
about = {
"website": "https://www.chinaso.com/",
"wikidata_id": "Q10846064",
"use_official_api": False,
"require_api_key": False,
"results": "JSON",
"language": "zh",
}
paging = True
time_range_support = True
results_per_page = 10
categories = []
ChinasoCategoryType = t.Literal['news', 'videos', 'images']
"""ChinaSo supports news, videos, images search.
- ``news``: search for news
- ``videos``: search for videos
- ``images``: search for images
In the category ``news`` you can additionally filter by option
:py:obj:`chinaso_news_source`.
"""
chinaso_category = 'news'
"""Configure ChinaSo category (:py:obj:`ChinasoCategoryType`)."""
ChinasoNewsSourceType = t.Literal['CENTRAL', 'LOCAL', 'BUSINESS', 'EPAPER', 'all']
"""Filtering ChinaSo-News results by source:
- ``CENTRAL``: central publication
- ``LOCAL``: local publication
- ``BUSINESS``: business publication
- ``EPAPER``: E-Paper
- ``all``: all sources
"""
chinaso_news_source: ChinasoNewsSourceType = 'all'
"""Configure ChinaSo-News type (:py:obj:`ChinasoNewsSourceType`)."""
time_range_dict = {'day': '24h', 'week': '1w', 'month': '1m', 'year': '1y'}
base_url = "https://www.chinaso.com"
def init(_):
if chinaso_category not in ('news', 'videos', 'images'):
raise ValueError(f"Unsupported category: {chinaso_category}")
if chinaso_category == 'news' and chinaso_news_source not in t.get_args(ChinasoNewsSourceType):
raise ValueError(f"Unsupported news source: {chinaso_news_source}")
def request(query, params):
query_params = {"q": query}
if time_range_dict.get(params['time_range']):
query_params["stime"] = time_range_dict[params['time_range']]
query_params["etime"] = 'now'
category_config = {
'news': {'endpoint': '/v5/general/v1/web/search', 'params': {'pn': params["pageno"], 'ps': results_per_page}},
'images': {
'endpoint': '/v5/general/v1/search/image',
'params': {'start_index': (params["pageno"] - 1) * results_per_page, 'rn': results_per_page},
},
'videos': {
'endpoint': '/v5/general/v1/search/video',
'params': {'start_index': (params["pageno"] - 1) * results_per_page, 'rn': results_per_page},
},
}
if chinaso_news_source != 'all':
if chinaso_news_source == 'EPAPER':
category_config['news']['params']["type"] = 'EPAPER'
else:
category_config['news']['params']["cate"] = chinaso_news_source
query_params.update(category_config[chinaso_category]['params'])
params["url"] = f"{base_url}{category_config[chinaso_category]['endpoint']}?{urlencode(query_params)}"
cookie = {
"uid": base64.b64encode(secrets.token_bytes(16)).decode("utf-8"),
}
params["cookies"] = cookie
return params
def response(resp):
try:
data = resp.json()
except Exception as e:
raise SearxEngineAPIException(f"Invalid response: {e}") from e
parsers = {'news': parse_news, 'images': parse_images, 'videos': parse_videos}
return parsers[chinaso_category](data)
def parse_news(data):
results = []
if not data.get("data", {}).get("data"):
raise SearxEngineAPIException("Invalid response")
for entry in data["data"]["data"]:
published_date = None
if entry.get("timestamp"):
try:
published_date = datetime.fromtimestamp(int(entry["timestamp"]))
except (ValueError, TypeError):
pass
results.append(
{
'title': html_to_text(entry["title"]),
'url': entry["url"],
'content': html_to_text(entry["snippet"]),
'publishedDate': published_date,
}
)
return results
def parse_images(data):
results = []
if not data.get("data", {}).get("arrRes"):
raise SearxEngineAPIException("Invalid response")
for entry in data["data"]["arrRes"]:
results.append(
{
'url': entry["web_url"],
'title': html_to_text(entry["title"]),
'content': html_to_text(entry.get("ImageInfo", "")),
'template': 'images.html',
'img_src': entry["url"].replace("http://", "https://"),
'thumbnail_src': entry["largeimage"].replace("http://", "https://"),
}
)
return results
def parse_videos(data):
results = []
if not data.get("data", {}).get("arrRes"):
raise SearxEngineAPIException("Invalid response")
for entry in data["data"]["arrRes"]:
published_date = None
if entry.get("VideoPubDate"):
try:
published_date = datetime.fromtimestamp(int(entry["VideoPubDate"]))
except (ValueError, TypeError):
pass
results.append(
{
'url': entry["url"],
'title': html_to_text(entry["raw_title"]),
'template': 'videos.html',
'publishedDate': published_date,
'thumbnail': entry["image_src"].replace("http://", "https://"),
}
)
return results
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