Implement Tower Services and Layers with Tokio for Asynchronous I/O

[hippalus]

Implement Tower Services and Layers with Tokio for Asynchronous I/O

Objective

Integrate Tower services and layers into the umay to create modular, reusable, and composable components. Utilize Tokio for asynchronous I/O to handle concurrent network connections efficiently.

Description

Tasks

• Refactor Proxy Server to Use Tower Abstractions

Key Components

Layers

• ProtocolDetectionLayer
• ConditionalTlsLayer
• LoadBalancingLayer
• ProtocolProxyLayer

Services

• Implement Tower Service trait for each layer.
• Compose services using Tower's ServiceBuilder.

Protocols

• Support for TCP, TLS, WebSocket, and potential future protocols

Acceptance Criteria

• Protocol detection, TLS termination, load balancing, and protocol proxying are implemented as separate layers.