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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 pukkamustard <pukkamustard@posteo.net>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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.
;;;
;;; GNU Guix 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 GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix eris http)
#:use-module (eris utils base32)
#:use-module (web uri)
#:use-module (web client)
#:use-module (web response)
#:use-module (rnrs base)
#:use-module (srfi srfi-2) ; and-let*
#:use-module (srfi srfi-71) ; extended let-syntax for multiple values
#:export (make-blake2b-urn-query-ref
eris-http-block-ref))
(define blake2b-uri-path-regexp
(make-regexp "^blake2b:" regexp/icase))
(define (make-blake2b-urn-query-ref block-ref)
(lambda (query)
(and-let* ((_ query) ; ensure query is not false
(urn (string->uri query))
(_ (uri? urn))
(_ (eqv? (uri-scheme urn) 'urn))
(_ (regexp-exec blake2b-uri-path-regexp
(uri-path urn)))
(blake2b-ref (base32-decode
(string-drop (uri-path urn) 8))))
(block-ref blake2b-ref))))
(define (make-blake2b-urn ref)
(string-append "urn:blake2b:" (base32-encode ref)))
(define (make-request-uri host ref)
(build-uri (uri-scheme host)
#:userinfo (uri-userinfo host)
#:host (uri-host host)
#:port (uri-port host)
#:path "/uri-res/N2R"
#:query (make-blake2b-urn ref)))
(define* (eris-http-block-ref
ref
#:key host
(open-connection (lambda (host) (open-socket-for-uri host))))
(let* ((uri (make-request-uri host ref))
(_ (format #t "URI: ~a\n" uri))
(response body
(http-get uri
#:decode-body? #f
#:port (open-connection host)
#:keep-alive? #t)))
(if (eqv? (response-code response) 200)
body
#f)))
;; (use-modules (eris)
;; (rnrs bytevectors))
;; (bytevector?
;; (eris-http-block-ref
;; (base32-decode
;; "4ACQM2Q5IB3DBHGKHM2WRTAXDBPMVZ7F6MG2TUXZ5QOJHW7P4N7Q")
;; #:host (string->uri "http://localhost:8081")))
|