Files
deer-flow/src/crawler/article.py
T
Willem Jiang 975b344ca7 fix: resolve issue #651 - crawl error with None content handling (#652)
* fix: resolve issue #651 - crawl error with None content handling
Fixed issue #651 by adding comprehensive null-safety checks and error handling to the crawl system.
The fix prevents the ‘TypeError: Incoming markup is of an invalid type: None’ crash by:
1. Validating HTTP responses from Jina API
2. Handling None/empty content at extraction stage
3. Adding fallback handling in Article markdown/message conversion
4. Improving error diagnostics with detailed logging
5. Adding 16 new tests with 100% coverage for critical paths

* Update src/crawler/readability_extractor.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/crawler/article.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2025-10-24 17:06:54 +08:00

54 lines
1.6 KiB
Python

# Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
# SPDX-License-Identifier: MIT
import re
from urllib.parse import urljoin
from markdownify import markdownify as md
class Article:
url: str
def __init__(self, title: str, html_content: str):
self.title = title
self.html_content = html_content
def to_markdown(self, including_title: bool = True) -> str:
markdown = ""
if including_title:
markdown += f"# {self.title}\n\n"
if self.html_content is None or not str(self.html_content).strip():
markdown += "*No content available*\n"
else:
markdown += md(self.html_content)
return markdown
def to_message(self) -> list[dict]:
image_pattern = r"!\[.*?\]\((.*?)\)"
content: list[dict[str, str]] = []
markdown = self.to_markdown()
if not markdown or not markdown.strip():
return [{"type": "text", "text": "No content available"}]
parts = re.split(image_pattern, markdown)
for i, part in enumerate(parts):
if i % 2 == 1:
image_url = urljoin(self.url, part.strip())
content.append({"type": "image_url", "image_url": {"url": image_url}})
else:
text_part = part.strip()
if text_part:
content.append({"type": "text", "text": text_part})
# If after processing all parts, content is still empty, provide a fallback message.
if not content:
content = [{"type": "text", "text": "No content available"}]
return content