# | |
# 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. | |
# | |
from abc import ABC | |
import asyncio | |
from crawl4ai import AsyncWebCrawler | |
from agent.component.base import ComponentBase, ComponentParamBase | |
class CrawlerParam(ComponentParamBase): | |
""" | |
Define the Crawler component parameters. | |
""" | |
def __init__(self): | |
super().__init__() | |
def check(self): | |
return True | |
class Crawler(ComponentBase, ABC): | |
component_name = "Crawler" | |
def _run(self, history, **kwargs): | |
ans = self.get_input() | |
ans = " - ".join(ans["content"]) if "content" in ans else "" | |
if not ans: | |
return Crawler.be_output("") | |
try: | |
result = asyncio.run(self.get_web(ans)) | |
return Crawler.be_output(result) | |
except Exception as e: | |
return Crawler.be_output(f"An unexpected error occurred: {str(e)}") | |
async def get_web(self, url): | |
proxy = self._param.proxy if self._param.proxy else None | |
async with AsyncWebCrawler(verbose=True, proxy=proxy) as crawler: | |
result = await crawler.arun( | |
url=url, | |
bypass_cache=True | |
) | |
match self._param.extract_type: | |
case 'html': | |
return result.cleaned_html | |
case 'markdown': | |
return result.markdown | |
case 'content': | |
return result.extracted_content | |
case _: | |
return result.markdown | |
# print(result.markdown) | |