107 lines
4.4 KiB
Scheme
107 lines
4.4 KiB
Scheme
;;; thttpdaemon.scm - a scheme web daemon
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;;;
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;;; Copyright (c) 2011-2012 Johan Ceuppens
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;;;
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;;; All rights reserved.
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;;;
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;;; Redistribution and use in source and binary forms, with or without
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;;; modification, are permitted provided that the following conditions
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;;; are met:
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;;; 1. Redistributions of source code must retain the above copyright
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;;; notice, this list of conditions and the following disclaimer.
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;;; 2. Redistributions in binary form must reproduce the above copyright
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;;; notice, this list of conditions and the following disclaimer in the
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;;; documentation and/or other materials provided with the distribution.
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;;; 3. The name of the authors may not be used to endorse or promote products
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;;; derived from this software without specific prior written permission.
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;;;
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;;; THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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;;; IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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;;; OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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;;; IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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;;; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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;;; NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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;;; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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;;; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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;;; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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;;; THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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;;,open ascii records sockets continuations
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(define eoln (string #\newline))
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(define cr (string (ascii->char 13)))
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(define servermsg "::thttpd-msg::")
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(define errormsg "::thttpd-error::")
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(define aspect-content (string-append "Content-Type: text/plain;charset=utf-8" cr eoln))
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(define :thttpd-daemon-record
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(make-record-type 'thttpd-daemon-record
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'(hostname port sock)))
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(define make-thttpd-daemon-record
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(record-constructor :thttpd-daemon-record
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'(hostname port sock)))
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(define thttpd-hostname (record-accessor :thttpd-daemon-record 'hostname))
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(define thttpd-port (record-accessor :thttpd-daemon-record 'port))
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(define thttpd-sock (record-accessor :thttpd-daemon-record 'sock))
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(define (get-response-f lst)
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(define (get return)
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(for-each
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(lambda (element)
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(set! return (call-with-current-continutation
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(lambda (r)
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(set! get r)
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(return element)))))
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lst)
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(return 'end-generate))
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(define (gen)
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(call-with-current-continuation get))
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gen)
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(define (get-response l) ;; make l public and generate without args
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(get-response-f l))
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(define (run-daemon-child-http rec)
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(let ((*hostname (thttpd-hostname rec))
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(*port (thttpd-port rec))
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(*socket (thttpd-sock rec))
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)
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(set! *socket (open-socket *port))
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(for-each display '("Opening listening socket on host : "
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*hostname
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" port : "
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*port
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eoln))
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((lambda ()
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(call-with-values
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(lambda ()
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(socket-accept *socket))
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(lambda (in out)
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(let* ((a (read in));;race cond. client requests
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(b (read in))
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(c (read in))
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(abcl '(a b c)))
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;;(let ((in (make-string-input-port in)))
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(for-each display '(servermsg (symbol->string a)))
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(if (symbol? a)
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(let ((response-word (get-response abcl)))
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(cond ((eq? a 'GET)
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;; fall through with continuations
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(let ((response-word-2nd (get-response abcl)))
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(if (symbol? response-word-2nd)
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(begin
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;;(display "200 OK" out)
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(display aspect-content out)
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;; FIXME #\return (make-char X)
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(display (string-append cr eoln) out) ;; CRLF
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(display "\"Hello World\"" out)
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))))
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;;(close-input-port in)
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;;(close-socket *socket)
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;;(close-output-port out)
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(else ;; + keep-alive
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(write errormsg out))
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)))))))))) |