Implement the IPinfoSpringFilter to handle IP data processing earlier in the request cycle.

[limehee]

Description:

The filter aims to enhance system performance by minimizing unnecessary processing and laying the foundation for future, more advanced IP-based filtering functionalities.

Rationale:

The current IPinfoSpring interceptor enriches requests with IP data but acts only after requests have reached the Dispatcher Servlet, limiting early-stage request management. The new IPinfoSpringFilter addresses this gap by enabling earlier intervention, which is critical for efficient and secure request handling based on geographic or specific IP criteria.

Key Enhancements:

• Pre-Servlet Processing: Processes IP data before the Spring Dispatcher Servlet, reducing downstream load and improving application responsiveness.
• Foundation for Advanced IP Filtering: Sets up capabilities for sophisticated IP filtering strategies, including access controls, content customization based on region, and proactive security measures.
• Improved Security and Compliance: Facilitates earlier security checks and compliance with regulations by processing IP data at the start of the request lifecycle.
• Performance Optimization: Lowers the application’s overhead by handling IP lookups at the filter level, ensuring resource use is focused only on requests that meet specific IP criteria.

[limehee]

@deltwalrus Apologies for the interruption, but could you please take some time to review this PR when you get a chance? Your feedback would be greatly appreciated. Thank you!

[deltwalrus]

Looks good @limehee

[limehee]

@deltwalrus Thank you for taking the time to review this. Could you please include these improvements so that I can contribute to this project?