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#!/bin/sh
# -*- mode: Scheme; indent-tabs-mode: nil; fill-column: 80; -*-
exec guile -e '(@ (gnunet-guile) main)' -s "$0" "$@"
!#
;;;; Copyright © 2018 Amirouche Boubekki <amirouche@hypermove.net>
;;;;
;;;; 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/>.
(define-module (gnunet-guile))
(use-modules ((ice-9 getopt-long)))
(use-modules ((ice-9 match)))
(use-modules ((gnunet)))
(use-modules ((gnunet subcommand)))
;;; download, gnunet-download.c
(define (download/task/clean-up fs)
(lambda ()
(fs-stop fs)))
(define (download/progress info)
(let ((status (fs-progress-info-status info)))
(cond
((eq? status %fs-status-download-start)
(display "* Download started...\n"))
((eq? status %fs-status-download-progress)
(display "* Download in-progress...\n"))
((eq? status %fs-status-download-error)
(display "* Download error!\n")
(scheduler-shutdown))
((eq? status %fs-status-download-completed)
(display "* Download complete!\n")
(scheduler-shutdown))
((eq? status %fs-status-download-stopped)
(scheduler-add-now (download/task/clean-up (fs-progress-info-fs info))))
((or (eq? status %fs-status-download-active)
(eq? status %fs-status-download-inactive))
#t)
(else (format #t "* Unexpected status (~a)\n" status)))))
(define (download/task/shutdown download-context)
(lambda ()
(fs-download-stop download-context #true)))
(define (download/task configuration uri filename)
(lambda ()
(let ((fs (fs-start configuration "gnunet-guile" download/progress)))
(let ((download-context (fs-download-start fs uri 0 #:filename filename)))
(scheduler-add-shutdown (download/task/shutdown download-context))))))
(define %download-options
'((help (single-char #\h) (value #f))))
(define (download args)
"gnunet download CONFIGURATION URI FILENAME
Download the URI to FILENAME using CONFIGURATION.
"
(let ((options (getopt-long (cons "gnunet-guile download" args)
%download-options
#:stop-at-first-non-option #f)))
(if (option-ref options 'help #f)
(display (procedure-documentation download))
(match args
((configuration uri filename)
(let ((configuration* (configuration-create)))
(configuration-load! configuration* configuration)
(let ((uri (string->uri uri)))
(unless (or (uri-chk? uri) (uri-loc? uri))
;; TODO: proper exit
(throw 'gnunet-guile "Only CHK or LOC URIs supported"))
(scheduler-run (download/task configuration* uri filename)))))))))
;;; publish, gnunet-publish.c
(define (publish/keywords-callback uri error)
(if error
(format #t "* Error while publishing keywords: ~a\n" error)
(format #t "* Keywords published\n"))
(scheduler-shutdown))
(define (publish/keywords fs keywords uri)
(fs-publish-ksk fs
(apply fs-uri-ksk-create keywords)
uri
(fs-block-options)
%fs-publish-option-none
publish/keywords-callback))
(define (publish/progress keywords)
(lambda (info)
(let ((status (fs-progress-info-status info)))
(cond
((eq? status %fs-status-publish-start)
(format #t "* Publishing started!\n"))
((eq? status %fs-status-publish-progress)
(format #t "* Publishing in progress...\n"))
((eq? status %fs-status-publish-error)
(format #t "* Error publishing: ~a!\n" (fs-progress-info-publish-error info))
(scheduler-shutdown))
((eq? status %fs-status-publish-completed)
(format #t "* Publishing '~a' done.\n" (fs-progress-info-publish-filename info))
(format #t
"* URI is '~a'\n"
(uri->string (fs-progress-info-publish-chk-uri info)))
(if (null? keywords)
(scheduler-shutdown)
(publish/keywords (fs-progress-info-fs info)
keywords
(fs-progress-info-publish-chk-uri info))))))))
(define (publish/task/shutdown publish-context)
(lambda ()
(fs-publish-stop publish-context)))
(define (publish/task configuration filename keywords)
(lambda ()
(let ((fs (fs-start configuration "gnunet-guile" (publish/progress keywords))))
(let ((fi (fs-file-information-create-from-file
fs
filename
;; XXX: force keyword to be 'jjj'
(fs-uri-ksk-create "jjj")
(container-meta-data-create)
%gnunet-yes
(fs-block-options))))
(let ((publish-context (fs-publish-start fs fi)))
(scheduler-add-shutdown (publish/task/shutdown publish-context)))))))
(define (publish-exec configuration filename keywords)
(let ((configuration* (configuration-create)))
(configuration-load! configuration* configuration)
(scheduler-run (publish/task configuration* filename keywords))))
(define %publish-options
'((help (single-char #\h) (value #f))))
(define (publish args)
"gnunet-guile publish CONFIGURATION FILE [KEYWORDS...]
Publish on gnunet FILE using CONFIGURATION using KEYWORDS.
"
(let ((options (getopt-long (cons "gnunet-guile publish" args)
%download-options
#:stop-at-first-non-option #f)))
(if (option-ref options 'help #f)
(display (procedure-documentation publish))
(match args
((configuration file keywords ...)
(publish-exec configuration file keywords))))))
;;; search
(define (search/task/shutdown search-context)
(lambda ()
(fs-search-stop search-context)))
(define (search/progress info)
(let ((status (fs-progress-info-status info)))
(cond
((eq? status %fs-status-search-start)
(format #t "* Search in progress...\n"))
((eq? status %fs-status-search-result)
(format #t "** ~a\n" (uri->string (fs-progress-info-search-result-uri info))))
((eq? status %fs-status-search-error)
(format #t "* Error searching: ~a\n" (fs-progress-info-search-error-message info))))))
(define (search/timeout)
(scheduler-shutdown))
(define (search/task configuration uri)
(lambda ()
(let ((fs (fs-start configuration "gnunet-guile" search/progress)))
(let ((search-context (fs-search-start fs uri 1 %fs-search-option-none)))
(scheduler-add-delayed (* 30 (expt 10 6)) search/timeout)
(scheduler-add-shutdown (search/task/shutdown search-context))))))
(define (search-exec configuration keywords)
(let ((configuration* (configuration-create))
(uri (apply fs-uri-ksk-create keywords)))
(configuration-load! configuration* configuration)
(scheduler-run (search/task configuration* uri))))
(define (search args)
"gnunet-guile search CONFIGURATION KEYWORDS...
Lookup files in gnunet that match KEYWORDS query using CONFIGURATION.
"
(match args
((configuration keywords ...)
(if (null? keywords)
(format #t "No keywords provided!\n")
(search-exec configuration keywords)))))
;;; cli
(define %cli `((download ,download)
(publish ,publish)
(search ,search)))
(define-public (main args)
(subcommand 'gnunet-guile %cli (cdr args)))
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