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https://gitee.com/wanwujie/deer-flow
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29 lines
1.2 KiB
Python
29 lines
1.2 KiB
Python
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from langchain.tools import tool
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from src.community.jina_ai.jina_client import JinaClient
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from src.config import get_app_config
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from src.utils.readability import ReadabilityExtractor
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readability_extractor = ReadabilityExtractor()
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@tool("web_fetch", parse_docstring=True)
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def web_fetch_tool(url: str) -> str:
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"""Fetch the contents of a web page at a given URL.
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Only fetch EXACT URLs that have been provided directly by the user or have been returned in results from the web_search and web_fetch tools.
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This tool can NOT access content that requires authentication, such as private Google Docs or pages behind login walls.
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Do NOT add www. to URLs that do NOT have them.
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URLs must include the schema: https://example.com is a valid URL while example.com is an invalid URL.
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Args:
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url: The URL to fetch the contents of.
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"""
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jina_client = JinaClient()
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timeout = 10
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config = get_app_config().get_tool_config("web_fetch")
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if config is not None and "timeout" in config.model_extra:
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timeout = config.model_extra.get("timeout")
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html_content = jina_client.crawl(url, return_format="html", timeout=timeout)
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article = readability_extractor.extract_article(html_content)
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return article.to_markdown()
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