feat: validate cookies and headers

[Melchyore]

Proposed changes

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• [ ] Bugfix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

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• [ ] I have added necessary documentation (if appropriate)

Further comments

Since we can append the route parameters to the validator schema, I assume we can do the same for cookies and headers, plus, it prevents some injections and make it easy for users to write smaller controllers' methods. In addition to that, I'm currently working on a module to generate Swagger/OpenAPI information automatically and in the latter, we can add parameters' location: https://spec.openapis.org/oas/v3.1.0#parameterIn, so it will help me a lot to generate the correct location automatically and users won't have to do it manually.

If this PR is merged, I'll add the necessary documentation + document the params property in schema that can be used (currently new comers are lost, because they don't know how to validate route parameters using validators as it's not mentioned on the docs).

Thank you!

[Melchyore]

Any news on this, please?

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.