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;;; Copyright © 2019 - 2023 Jakob L. Kreuze <zerodaysfordays@sdf.org>
;;;
;;; This program is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU General Public License as
;;; published by the Free Software Foundation; either version 3 of the
;;; License, or (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;; General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program. If not, see
;;; <http://www.gnu.org/licenses/>.
(use-modules (srfi srfi-1)
(web request)
(web response)
(web server)
(web uri)
(web client))
(define static-url "http://localhost:8080")
(define dynamic-url "http://localhost:8081")
(define (main-request-handler request body)
"Demuxer entry-point; parse `request' and forward to the correct local service"
(define (wrap-response response)
(if (response? response)
(build-response
#:version (response-version response)
#:code (response-code response)
#:reason-phrase (response-reason-phrase response)
#:headers (remove (lambda (hdr) (eqv? 'content-length (car hdr)))
(response-headers response))
#:port (response-port response)
#:validate-headers? #f)
(cons '(Access-Control-Allow-Origin . "*") response)))
(let* ((path-encoded (uri-path (request-uri request)))
(path (split-and-decode-uri-path path-encoded)))
(define-values (response resp-body)
(let ((url (if (and (positive? (length path)) (string= "api" (first path)))
(string-concatenate (list dynamic-url path-encoded))
(string-concatenate (list static-url path-encoded)))))
(http-request url
#:method (request-method request)
#:body body
#:version '(1 . 1)
#:keep-alive? #f
#:headers (request-headers request))))
(values (wrap-response response) resp-body)))
(run-server main-request-handler 'http '(#:port 8082))
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