ragflow-main/agent/component/baidu.py

#
#  Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#
import logging
from abc import ABC
import pandas as pd
import requests
import re
from agent.component.base import ComponentBase, ComponentParamBase


class BaiduParam(ComponentParamBase):
    """
    Define the Baidu component parameters.
    """

    def __init__(self):
        super().__init__()
        self.top_n = 10

    def check(self):
        self.check_positive_integer(self.top_n, "Top N")


class Baidu(ComponentBase, ABC):
    component_name = "Baidu"

    def _run(self, history, **kwargs):
        ans = self.get_input()
        ans = " - ".join(ans["content"]) if "content" in ans else ""
        if not ans:
            return Baidu.be_output("")

        try:
            url = 'http://www.baidu.com/s?wd=' + ans + '&rn=' + str(self._param.top_n)
            headers = {
                'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.104 Safari/537.36'}
            response = requests.get(url=url, headers=headers)

            url_res = re.findall(r"'url': \\\"(.*?)\\\"}", response.text)
            title_res = re.findall(r"'title': \\\"(.*?)\\\",\\n", response.text)
            body_res = re.findall(r"\"contentText\":\"(.*?)\"", response.text)
            baidu_res = [{"content": re.sub('<em>|</em>', '', '<a href="' + url + '">' + title + '</a>    ' + body)} for
                         url, title, body in zip(url_res, title_res, body_res)]
            del body_res, url_res, title_res
        except Exception as e:
            return Baidu.be_output("**ERROR**: " + str(e))

        if not baidu_res:
            return Baidu.be_output("")

        df = pd.DataFrame(baidu_res)
        logging.debug(f"df: {str(df)}")
        return df