CS3700-project4/smol-http/main.rkt

#lang racket/base
(provide (all-from-out "./http-msg.rkt")
         http-request-method?
         http-response-code?
         http-response-code-name

         http-socket?
         http-connect
         http-request
         http-close)

(require racket/tcp
         racket/match

         "./util.rkt"
         "./http-msg.rkt")

;; ---------------------------------------------------------------------------------------

(define DEFAULT-PORT 80)

(struct http-socket [extra-headers conn-pair])

;; (http-connect host [port]) -> http-socket?
;; host : string?
;; port : port-number?
(define (http-connect host
                      [port DEFAULT-PORT]
                      #:headers [x-hdrs '()])
  (http-socket `([host . ,host] ,@x-hdrs)
               (let-values ([(in out) (tcp-connect host port)])
                 (cons in out))))

;; (http-close sock) -> void?
;; sock : http-socket?
(define (http-close sock)
  (match-define (cons in out) (http-socket-conn-pair sock))
  (tcp-abandon-port in)
  (tcp-abandon-port out))

;; (http-request sock req) -> http-res?
;; sock : http-socket?
;; req : http-req?
(define (http-request sock req)
  (define req* (http-add-headers req (http-socket-extra-headers sock)))
  (match-define (cons in out) (http-socket-conn-pair sock))
  (write-http-msg req* out)
  (flush-output out)
  (read-http-msg in))

(module+ test
  )