HTTP server with TCP

The basic mechanism of this HTTP-like protocol is the same as that of HTTP 1.1. That is, when the server accepts a new TCP connection from a client, it reads the request headers and an optional request body sent by the client, and then sends valid response headers and optionally a response body. After such a request-response cycle, the connection is persisted (not closing immediately), and the server waits for a new request from the client or a notification for closing the connection. For the simple scenarios in this assignment, the server only needs to handle the basic request and response information along with the “Content-Length” header field.