Update python sdk to strip any directory traversal in filename

[wing328]

based on #22953

with updated samples, docs.

cc @cbornet (2017/09) @tomplus (2018/10) @krjakbrjak (2023/02) @fa0311 (2023/10) @multani (2023/10)

PR checklist

• Read the contribution guidelines.
• Pull Request title clearly describes the work in the pull request and Pull Request description provides details about how to validate the work. Missing information here may result in delayed response from the community.
• Run the following to build the project and update samples:

  ./mvnw clean package || exit
  ./bin/generate-samples.sh ./bin/configs/*.yaml || exit
  ./bin/utils/export_docs_generators.sh || exit
  

  (For Windows users, please run the script in WSL)
  Commit all changed files.
  This is important, as CI jobs will verify all generator outputs of your HEAD commit as it would merge with master.
  These must match the expectations made by your contribution.
  You may regenerate an individual generator by passing the relevant config(s) as an argument to the script, for example ./bin/generate-samples.sh bin/configs/java*.
  IMPORTANT: Do NOT purge/delete any folders/files (e.g. tests) when regenerating the samples as manually written tests may be removed.
• File the PR against the correct branch: master (upcoming 7.x.0 minor release - breaking changes with fallbacks), 8.0.x (breaking changes without fallbacks)
• If your PR solves a reported issue, reference it using GitHub's linking syntax (e.g., having "fixes #123" present in the PR description)
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---

Summary by cubic

Prevents directory traversal in Python SDK file downloads by sanitizing Content-Disposition filenames and falling back to a safe temp name when the header is empty or uses "."/"..". Updates Python samples to reflect the fix.

• Bug Fixes
  • Sanitize Content-Disposition filenames in ApiClient.__deserialize_file using os.path.basename and fall back to the temp filename if the value is empty, "." or ".." to avoid writing outside the target folder.
  • Regenerated Python sample clients to include the fix.

^{Written for commit 8d2e1f4. Summary will update on new commits.}

[cubic-dev-ai]

1 issue found across 7 files

Prompt for AI agents (all issues)

Check if these issues are valid — if so, understand the root cause of each and fix them.


<file name="samples/openapi3/client/petstore/python-httpx/petstore_api/api_client.py">

<violation number="1" location="samples/openapi3/client/petstore/python-httpx/petstore_api/api_client.py:720">
P2: os.path.basename still returns ".." for a filename of "..", so a crafted Content-Disposition can still escape the temp folder. Guard against empty/"."/".." names and fall back to the generated temp filename.</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.}