feat(security): enforce SSRF protection in WebPageExtractor#96
feat(security): enforce SSRF protection in WebPageExtractor#96guangtouwangba wants to merge 1 commit intomasterfrom
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- Added `validate_url` check in `WebPageExtractor.extract` to prevent SSRF attacks. - Added unit tests to verify access to private IPs and localhost is blocked. - Updated Sentinel journal with learnings about unenforced security utilities.
Summary of ChangesHello @guangtouwangba, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request significantly enhances the security posture of the Highlights
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Code Review
This pull request introduces crucial Server-Side Request Forgery (SSRF) protection to the WebPageExtractor by integrating the validate_url utility. The changes include calling validate_url at the beginning of the extract method to block unsafe URLs, and comprehensive unit tests have been added to verify that private IPs and localhost access are correctly prevented. Additionally, the Sentinel journal has been updated with valuable insights regarding the importance of consistently enforcing security utilities. Overall, this is a significant improvement for the application's security posture.
| logger.warning(f"[WebPageExtractor] Blocked unsafe URL: {url} - {error}") | ||
| return ExtractionResult.failure( | ||
| error=error, | ||
| title=self._extract_title_from_url(url), |
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When an unsafe URL is blocked due to SSRF protection, the _extract_title_from_url method is called to provide a title for the ExtractionResult.failure. While this works, it might be more explicit and informative to provide a generic, clear title indicating the security block, rather than attempting to parse a potentially malformed or unsafe URL for a title. This improves clarity in logs and error messages.
| title=self._extract_title_from_url(url), | |
| title="Blocked URL (SSRF Protection)", |
| # Assert failure | ||
| assert result.success is False | ||
| assert result.error is not None | ||
| assert "private" in result.error.lower() or "denied" in result.error.lower() |
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The assertion for the error message is a bit broad. The validate_url function returns a more specific error message like "Access to private/local network resources is denied". It would make the test more robust and less prone to false positives if it asserted against a more precise substring or the exact expected message.
| assert "private" in result.error.lower() or "denied" in result.error.lower() | |
| assert "access to private/local network resources is denied" in result.error.lower() |
| result = await extractor.extract(url) | ||
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| assert result.success is False | ||
| assert "private" in result.error.lower() or "denied" in result.error.lower() |
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Similar to the previous comment, this assertion for the error message is quite broad. For better test robustness and clarity, consider asserting against a more specific part of the error message returned by validate_url, such as "access to private/local network resources is denied".
| assert "private" in result.error.lower() or "denied" in result.error.lower() | |
| assert "access to private/local network resources is denied" in result.error.lower() |
1 participant
validate_urlcheck inWebPageExtractor.extractto prevent SSRF attacks.