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cj-http-status.scm
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;;; Copyright 2006-2018 by Christian Jaeger <[email protected]>
;;; This file is free software; you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License (GPL) as published
;;; by the Free Software Foundation, either version 2 of the License, or
;;; (at your option) any later version.
(require easy
(oo-vector-lib string-map))
(export (class http-status)
http-status-code->name
;;make-check-http-status-or-code
;;maybe-http-status:code
symbol.http-status)
(include "cj-standarddeclares.scm")
(define (make-check-http-status-or-code from to)
(lambda (hs-or-code)
(let ((code (maybe-http-status:code hs-or-code)))
(and (>= code from)
(< code to)))))
;; reply-status ? automtic
(defclass (http-status [natural? code]
[(maybe string?) maybe-name])
(defmethod (name s)
;; was "NOTE that this can still return #f if the code does not
;; exist! And it can return a string even if code is not in the
;; table, if the object already carries the name."; hmm make it
;; fail now, but what is the idea behind everything?
(or maybe-name
(http-status-code->name code)
(error "unknown http-status code" code)))
(defmethod is-info? (make-check-http-status-or-code 100 200))
(defmethod is-success? (make-check-http-status-or-code 200 300))
(defmethod is-redirect? (make-check-http-status-or-code 300 400))
(defmethod is-error? (make-check-http-status-or-code 400 600))
(defmethod is-client-error? (make-check-http-status-or-code 400 600))
(defmethod is-server-error? (make-check-http-status-or-code 500 600)))
(insert-result-of
(let ((alist
;; from Perl's HTTP::Status module
'((100 . "Continue")
(101 . "Switching Protocols")
(102 . "Processing")
(200 . "OK")
(201 . "Created")
(202 . "Accepted")
(203 . "Non-Authoritative Information")
(204 . "No Content")
(205 . "Reset Content")
(206 . "Partial Content")
(207 . "Multi-Status")
(300 . "Multiple Choices")
(301 . "Moved Permanently")
(302 . "Found")
(303 . "See Other")
(304 . "Not Modified")
(305 . "Use Proxy")
(307 . "Temporary Redirect")
(400 . "Bad Request")
(401 . "Unauthorized")
(402 . "Payment Required")
(403 . "Forbidden")
(404 . "Not Found")
(405 . "Method Not Allowed")
(406 . "Not Acceptable")
(407 . "Proxy Authentication Required")
(408 . "Request Timeout")
(409 . "Conflict")
(410 . "Gone")
(411 . "Length Required")
(412 . "Precondition Failed")
(413 . "Request Entity Too Large")
(414 . "Request-URI Too Large")
(415 . "Unsupported Media Type")
(416 . "Request Range Not Satisfiable")
(417 . "Expectation Failed")
(422 . "Unprocessable Entity")
(423 . "Locked")
(424 . "Failed Dependency")
(500 . "Internal Server Error")
(501 . "Not Implemented")
(502 . "Bad Gateway")
(503 . "Service Unavailable")
(504 . "Gateway Timeout")
(505 . "HTTP Version Not Supported")
(507 . "Insufficient Storage"))))
(define (cj-http-status:string-to-identifyer str)
(string-map (lambda (c)
(if (char-alphanumeric? c)
(char-downcase c)
#\-))
str))
;;(newline) ;; GTRRRR immer dies
;;(pp-through
`(begin
; ,@(map (lambda (p)
; `(define ,(string->symbol
; (string-append
; "http-status-"
; (string-to-identifyer
; (cdr p))))
; (http-status ,(car p)
; ,(cdr p))))
; alist)
;^- currently unsolved problem: cannot auto-generate export list
; so I write this instead:
(define http-status:%symbol->obj%
(list->table
,(list 'quasiquote
(map
(lambda (p)
(cons (string->symbol
(cj-http-status:string-to-identifyer
(cdr p)))
(list 'unquote
`(http-status ,(car p)
,(cdr p)))))
alist))
test: eq?))
(define http-status:%code->name%
(list->table
',alist
test: eq?)))))
(define (symbol.http-status symbol)
(table-ref http-status:%symbol->obj% symbol))
(define (http-status-code->name code)
(table-ref http-status:%code->name% code #f))
(define (maybe-http-status:code hs-or-code)
(cond ((http-status? hs-or-code)
(http-status-code hs-or-code))
((##fixnum? hs-or-code)
hs-or-code)
(else (error "not a http-status or -code:" hs-or-code))))