dj-wise-ronin opened a new pull request, #70052:
URL: https://github.com/apache/airflow/pull/70052
### Description
Connection models in Apache Airflow accept integer values for the `port`
field but do not enforce that the value is a valid network port in the range
`[1, 65535]`.
This PR adds validation logic to connection ports at three layers:
1. **SQLAlchemy Connection model** validation via `@validates("port")` to
ensure port numbers assigned are integers between 1 and 65535.
2. **Task SDK Connection model** validation in `__attrs_post_init__` to
enforce range limits and format validation during standard instantiation and
URI parsing.
3. **Pydantic API datamodel** validation using `Field(ge=1, le=65535)` on
the REST API gateway connections schema.
Additionally, this PR includes comprehensive unit tests verifying the
validation rules for both the SQLAlchemy and Task SDK model implementations.
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