Data-Engineering-Projects

Data-Engineering-Projects copied to clipboard

Sourced from scrapy's releases.

2.6.2

Fixes a security issue around HTTP proxy usage, and addresses a few regressions introduced in Scrapy 2.6.0.

See the changelog.

Sourced from scrapy's changelog.

Scrapy 2.6.2 (2022-07-25)

Security bug fix:

• When :class:~scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware processes a request with :reqmeta:proxy metadata, and that :reqmeta:proxy metadata includes proxy credentials, :class:~scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware sets the Proxy-Authentication header, but only if that header is not already set.

  There are third-party proxy-rotation downloader middlewares that set different :reqmeta:proxy metadata every time they process a request.

  Because of request retries and redirects, the same request can be processed by downloader middlewares more than once, including both :class:~scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware and any third-party proxy-rotation downloader middleware.

  These third-party proxy-rotation downloader middlewares could change the :reqmeta:proxy metadata of a request to a new value, but fail to remove the Proxy-Authentication header from the previous value of the :reqmeta:proxy metadata, causing the credentials of one proxy to be sent to a different proxy.

  To prevent the unintended leaking of proxy credentials, the behavior of :class:~scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware is now as follows when processing a request:

  • If the request being processed defines :reqmeta:proxy metadata that includes credentials, the Proxy-Authorization header is always updated to feature those credentials.

  • If the request being processed defines :reqmeta:proxy metadata without credentials, the Proxy-Authorization header is removed unless it was originally defined for the same proxy URL.

    To remove proxy credentials while keeping the same proxy URL, remove the Proxy-Authorization header.

  • If the request has no :reqmeta:proxy metadata, or that metadata is a falsy value (e.g. None), the Proxy-Authorization header is removed.

    It is no longer possible to set a proxy URL through the :reqmeta:proxy metadata but set the credentials through the Proxy-Authorization header. Set proxy credentials through the :reqmeta:proxy metadata instead.

... (truncated)

• aecbccb Bump version: 2.6.1 → 2.6.2
• af7dd16 Merge pull request from GHSA-9x8m-2xpf-crp3
• 4205609 Fixed intersphinx references
• e3e69d1 Pin documentation requirements (#5536)
• 54bfb96 Cover #5525 in the 2.6.2 release notes (#5535)
• 4ef7182 If TWISTED_REACTOR is None, reuse any pre-installed reactor (#5528)
• 1c1cd5d Update the 2.6.2 release notes
• 84c29a2 Unset the release date of still-unreleased 2.6.2 (#5503)
• b9b9422 Merge pull request #5482 from alexpdev/parse_help_msg
• 915c288 edit
• Additional commits viewable in compare view

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language

You can disable automated security fix PRs for this repo from the Security Alerts page.