;;;;
;;;; w w w - h t t p . s t k		--  WWW for STk (HTTP: protocol)
;;;;
;;;; Copyright © 1996-1998 Erick Gallesio - I3S-CNRS/ESSI <eg@unice.fr>
;;;; 
;;;; Permission to use, copy, and/or distribute this software and its
;;;; documentation for any purpose and without fee is hereby granted, provided
;;;; that both the above copyright notice and this permission notice appear in
;;;; all copies and derived works.  Fees for distribution or use of this
;;;; software or derived works may only be charged with express written
;;;; permission of the copyright holder.  
;;;; This software is provided ``as is'' without express or implied warranty.
;;;;
;;;; This version uses some of the enhancements done by Harvey J. Stein:
;;;;         Copyright (c) 1995 Harvey J. Stein (hjstein@math.huji.ac.il)
;;;;
;;;;           Author: Erick Gallesio [eg@unice.fr]
;;;;    Creation date:  4-Oct-1996 18:49
;;;; Last file update: 27-Feb-1998 21:48


;; Add the "HTTP:" protocol

(with-module WWW

  (define (get-http: url)
    (let ((file (URL:filename    url))
	  (host (URL:host        url))
	  (port (URL:port-number url)))

      ;; Control parameters
      (if (or (not host) (string=? host ""))	(set! host "localhost"))
      (if (or (not file) (string=? file ""))	(set! file "/"))
      (if (not port) 				(set! port 80))
     
      (let* ((s   (make-client-socket host port))
	     (in  (socket-input  s))
	     (out (socket-output s)))
	(format out "GET ~A\r\n" file)
	(close-output-port out)
	;; Return the socket and the function to close it
	(cons in
	      (lambda () (close-input-port in))))))

  (WWW:add-protocol 'http get-http:)
)

(provide "www-http")