Summary:

The provided code changes focus on the removal of support for the Google Cloud Spanner database in the Jans application setup process. This includes the removal of Spanner-related configuration variables, logic, and dependencies across various components of the application. The changes also involve simplifying the database-related functionality by focusing solely on MySQL and PostgreSQL as the supported relational database management systems (RDBMS).

From an application security perspective, the removal of Spanner support is a positive change as it reduces the attack surface and complexity of the application. Simplifying the codebase and removing unused features can help improve the overall security and maintainability of the application. However, it's important to ensure that the removal of Spanner support does not introduce any unintended consequences or impact the application's functionality.

Additionally, the code changes include updates to the Jetty installer, RDBM installer, Jans Auth Server setup, and various utility files. These changes focus on improving the installation and configuration of the application, with a strong emphasis on security-related aspects such as password management, data integrity, JSON data handling, and LDAP configuration.

Files Changed:

1. jans-linux-setup/jans_setup/setup_app/config.py: Removal of Spanner-related configuration variables and logic.
2. jans-linux-setup/jans_setup/setup_app/installers/jetty.py: Updates to the Jetty installer, including the removal of Spanner-specific logic.
3. jans-linux-setup/jans_setup/setup_app/installers/rdbm.py: Improvements to the RDBM installer, including secure password generation and data integrity checks.
4. jans-linux-setup/jans_setup/setup_app/installers/jans_auth.py: Enhancements to the Jans Auth Server setup, such as OIDC key generation and pairwise calculation.
5. jans-linux-setup/jans_setup/setup_app/static.py: Removal of unused backend types and their corresponding string representations.
6. jans-linux-setup/jans_setup/setup_app/utils/arg_parser.py: Removal of Spanner-related command-line arguments.
7. jans-linux-setup/jans_setup/setup_app/setup_options.py: Simplification of the RDBM configuration options.
8. jans-linux-setup/jans_setup/setup_app/utils/collect_properties.py: Secure handling of sensitive information and configuration settings.
9. jans-linux-setup/jans_setup/setup_app/test_data_loader.py: Removal of Spanner-related test data loading functionality.
10. jans-linux-setup/jans_setup/setup_app/utils/properties_utils.py: Removal of Spanner-related code and simplification of the persistence type handling.
11. jans-linux-setup/jans_setup/setup_app/utils/db_utils.py: Removal of Spanner-related database utility functions.
12. jans-linux-setup/jans_setup/static/rdbm/sql_data_types.json: Removal of Spanner-specific data type configurations.
13. jans-linux-setup/jans_setup/static/rdbm/ldap_sql_data_type_mapping.json: Removal of the Spanner section from the LDAP-SQL data type mapping.
14. jans-linux-setup/jans_setup/tests/analyzer.py: Improvements to the log analysis tool, including database operation tracking and backend detection.