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guix/guix/download.scm
Ludovic Courtès 40cc850aeb
download: 'built-in-builders*' relies on the functional cache. 
The previous caching strategy, which used STORE as an 'eq?' key, would
no longer work when the functional cache is used because subsequent
store values are not 'eq?'.

* guix/download.scm (built-in-builders*): Rewrite in terms of
'mcached'.
2018-12-19 23:52:25 +01:00

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013, 2014, 2015 Andreas Enge <andreas@enge.fr>
;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
;;; Copyright © 2016 Alex Griffin <a@ajgrf.com>
;;; Copyright © 2016 David Craven <david@craven.ch>
;;; Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; 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 download)
#:use-module (ice-9 match)
#:use-module (guix derivations)
#:use-module (guix packages)
#:use-module (guix store)
#:use-module ((guix build download) #:prefix build:)
#:use-module (guix monads)
#:use-module (guix gexp)
#:use-module (guix utils)
#:use-module (web uri)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (%mirrors
url-fetch
url-fetch/tarbomb
url-fetch/zipbomb
download-to-store))
;;; Commentary:
;;;
;;; Produce fixed-output derivations with data fetched over HTTP or FTP.
;;;
;;; Code:
(define %mirrors
;; Mirror lists used when `mirror://' URLs are passed.
(let* ((gnu-mirrors
'(;; This one redirects to a (supposedly) nearby and (supposedly)
;; up-to-date mirror.
"https://ftpmirror.gnu.org/gnu/"
"ftp://ftp.cs.tu-berlin.de/pub/gnu/"
"ftp://ftp.funet.fi/pub/mirrors/ftp.gnu.org/gnu/"
;; This one is the master repository, and thus it's always
;; up-to-date.
"http://ftp.gnu.org/pub/gnu/")))
`((gnu ,@gnu-mirrors)
(gcc
"ftp://ftp.nluug.nl/mirror/languages/gcc/"
"ftp://ftp.fu-berlin.de/unix/languages/gcc/"
"ftp://ftp.irisa.fr/pub/mirrors/gcc.gnu.org/gcc/"
"ftp://gcc.gnu.org/pub/gcc/"
,@(map (cut string-append <> "/gcc") gnu-mirrors))
(gnupg
"http://artfiles.org/gnupg.org"
"http://www.crysys.hu/"
"https://gnupg.org/ftp/gcrypt/"
"ftp://mirrors.dotsrc.org/gcrypt/"
"ftp://mirror.cict.fr/gnupg/"
"ftp://ftp.franken.de/pub/crypt/mirror/ftp.gnupg.org/gcrypt/"
"ftp://ftp.freenet.de/pub/ftp.gnupg.org/gcrypt/"
"ftp://ftp.hi.is/pub/mirrors/gnupg/"
"ftp://ftp.heanet.ie/mirrors/ftp.gnupg.org/gcrypt/"
"ftp://ftp.bit.nl/mirror/gnupg/"
"ftp://ftp.surfnet.nl/pub/security/gnupg/"
"ftp://ftp.iasi.roedu.net/pub/mirrors/ftp.gnupg.org/"
"ftp://ftp.sunet.se/pub/security/gnupg/"
"ftp://mirror.switch.ch/mirror/gnupg/"
"ftp://mirror.tje.me.uk/pub/mirrors/ftp.gnupg.org/"
"ftp://ftp.mirrorservice.org/sites/ftp.gnupg.org/gcrypt/"
"ftp://ftp.ring.gr.jp/pub/net/gnupg/"
"ftp://ftp.gnupg.org/gcrypt/")
(gnome
"http://ftp.belnet.be/ftp.gnome.org/"
"http://ftp.linux.org.uk/mirrors/ftp.gnome.org/"
"http://ftp.gnome.org/pub/GNOME/"
"https://download.gnome.org/"
"http://mirror.yandex.ru/mirrors/ftp.gnome.org/")
(hackage
"http://hackage.haskell.org/")
(savannah
"http://download.savannah.gnu.org/releases/"
"http://ftp.cc.uoc.gr/mirrors/nongnu.org/"
"http://ftp.twaren.net/Unix/NonGNU/"
"http://mirror.csclub.uwaterloo.ca/nongnu/"
"http://nongnu.askapache.com/"
"http://savannah.c3sl.ufpr.br/"
"http://download.savannah.gnu.org/releases-noredirect/"
"http://download-mirror.savannah.gnu.org/releases/"
"ftp://ftp.twaren.net/Unix/NonGNU/"
"ftp://mirror.csclub.uwaterloo.ca/nongnu/"
"ftp://mirror.publicns.net/pub/nongnu/"
"ftp://savannah.c3sl.ufpr.br/")
(sourceforge ; https://sourceforge.net/p/forge/documentation/Mirrors/
"http://downloads.sourceforge.net/project/"
"http://ufpr.dl.sourceforge.net/project/"
"http://heanet.dl.sourceforge.net/project/"
"http://freefr.dl.sourceforge.net/project/"
"http://internode.dl.sourceforge.net/project/"
"http://jaist.dl.sourceforge.net/project/"
"http://kent.dl.sourceforge.net/project/"
"http://liquidtelecom.dl.sourceforge.net/project/"
;; "http://nbtelecom.dl.sourceforge.net/project/" ;never returns 404s
"http://nchc.dl.sourceforge.net/project/"
"http://ncu.dl.sourceforge.net/project/"
"http://netcologne.dl.sourceforge.net/project/"
"http://netix.dl.sourceforge.net/project/"
"http://pilotfiber.dl.sourceforge.net/project/"
"http://superb-sea2.dl.sourceforge.net/project/"
"http://tenet.dl.sourceforge.net/project/"
"http://vorboss.dl.sourceforge.net/project/"
"http://netassist.dl.sourceforge.net/project/")
(netfilter.org ; https://www.netfilter.org/mirrors.html
"http://ftp.netfilter.org/pub/"
"ftp://ftp.es.netfilter.org/mirrors/netfilter/"
"ftp://ftp.hu.netfilter.org/"
"ftp://www.lt.netfilter.org/pub/")
(kernel.org
"http://ramses.wh2.tu-dresden.de/pub/mirrors/kernel.org/"
"http://linux-kernel.uio.no/pub/"
"http://kernel.osuosl.org/pub/"
"http://ftp.be.debian.org/pub/"
"http://mirror.linux.org.au/"
"ftp://ftp.funet.fi/pub/mirrors/ftp.kernel.org/pub/")
(apache ; from http://www.apache.org/mirrors/dist.html
"http://www.eu.apache.org/dist/"
"http://www.us.apache.org/dist/"
"http://apache.belnet.be/"
"http://mirrors.ircam.fr/pub/apache/"
"http://apache-mirror.rbc.ru/pub/apache/"
;; As a last resort, try the archive.
"http://archive.apache.org/dist/")
(xorg ; from http://www.x.org/wiki/Releases/Download
"http://www.x.org/releases/" ; main mirrors
"http://mirror.csclub.uwaterloo.ca/x.org/" ; North America
"http://xorg.mirrors.pair.com/"
"http://mirror.us.leaseweb.net/xorg/"
"ftp://mirror.csclub.uwaterloo.ca/x.org/"
"ftp://xorg.mirrors.pair.com/"
"ftp://artfiles.org/x.org/" ; Europe
"ftp://ftp.chg.ru/pub/X11/x.org/"
"ftp://ftp.fu-berlin.de/unix/X11/FTP.X.ORG/"
"ftp://ftp.gwdg.de/pub/x11/x.org/"
"ftp://ftp.mirrorservice.org/sites/ftp.x.org/"
"ftp://ftp.ntua.gr/pub/X11/"
"ftp://ftp.piotrkosoft.net/pub/mirrors/ftp.x.org/"
"ftp://ftp.portal-to-web.de/pub/mirrors/x.org/"
"ftp://ftp.solnet.ch/mirror/x.org/"
"ftp://mi.mirror.garr.it/mirrors/x.org/"
"ftp://mirror.cict.fr/x.org/"
"ftp://mirror.switch.ch/mirror/X11/"
"ftp://mirrors.ircam.fr/pub/x.org/"
"ftp://x.mirrors.skynet.be/pub/ftp.x.org/"
"http://x.cs.pu.edu.tw/" ; East Asia
"ftp://ftp.cs.cuhk.edu.hk/pub/X11"
"ftp://ftp.u-aizu.ac.jp/pub/x11/x.org/"
"ftp://ftp.yz.yamagata-u.ac.jp/pub/X11/x.org/"
"ftp://ftp.kaist.ac.kr/x.org/"
"ftp://mirrors.go-part.com/xorg/"
"ftp://ftp.is.co.za/pub/x.org") ; South Africa
(cpan
"http://www.cpan.org/"
"http://cpan.metacpan.org/"
;; A selection of HTTP mirrors from http://www.cpan.org/SITES.html.
;; Europe.
"http://ftp.belnet.be/mirror/ftp.cpan.org/"
"http://mirrors.nic.cz/CPAN/"
"http://mirror.ibcp.fr/pub/CPAN/"
"http://ftp.ntua.gr/pub/lang/perl/"
"http://kvin.lv/pub/CPAN/"
"http://mirror.as43289.net/pub/CPAN/"
"http://cpan.cs.uu.nl/"
"http://cpan.uib.no/"
"http://cpan-mirror.rbc.ru/pub/CPAN/"
"http://mirror.sbb.rs/CPAN/"
"http://cpan.lnx.sk/"
"http://ftp.rediris.es/mirror/CPAN/"
"http://mirror.ox.ac.uk/sites/www.cpan.org/"
;; Africa.
"http://mirror.liquidtelecom.com/CPAN/"
"http://cpan.mirror.ac.za/"
"http://mirror.is.co.za/pub/cpan/"
"http://cpan.saix.net/"
"http://mirror.ucu.ac.ug/cpan/"
;; North America.
"http://mirrors.gossamer-threads.com/CPAN/"
"http://mirror.csclub.uwaterloo.ca/CPAN/"
"http://mirrors.ucr.ac.cr/CPAN/"
"http://www.msg.com.mx/CPAN/"
"http://mirrors.namecheap.com/CPAN/"
"http://mirror.uic.edu/CPAN/"
"http://mirror.datapipe.net/CPAN/"
"http://mirror.cc.columbia.edu/pub/software/cpan/"
"http://mirror.uta.edu/CPAN/"
;; South America.
"http://cpan.mmgdesigns.com.ar/"
"http://mirror.nbtelecom.com.br/CPAN/"
"http://linorg.usp.br/CPAN/"
"http://cpan.dcc.uchile.cl/"
"http://mirror.cedia.org.ec/CPAN/"
;; Oceania.
"http://cpan.mirror.serversaustralia.com.au/"
"http://mirror.waia.asn.au/pub/cpan/"
"http://mirror.as24220.net/pub/cpan/"
"http://cpan.lagoon.nc/pub/CPAN/"
"http://cpan.inspire.net.nz/"
;; Asia.
"http://mirror.dhakacom.com/CPAN/"
"http://mirrors.ustc.edu.cn/CPAN/"
"http://ftp.cuhk.edu.hk/pub/packages/perl/CPAN/"
"http://kambing.ui.ac.id/cpan/"
"http://cpan.hostiran.ir/"
"http://ftp.nara.wide.ad.jp/pub/CPAN/"
"http://mirror.neolabs.kz/CPAN/"
"http://cpan.nctu.edu.tw/"
"http://cpan.ulak.net.tr/"
"http://mirrors.vinahost.vn/CPAN/")
(cran
;; Arbitrary mirrors from http://cran.r-project.org/mirrors.html
;; This one automatically redirects to servers worldwide
"http://cran.r-project.org/"
"http://cran.rstudio.com/"
"http://cran.univ-lyon1.fr/"
"http://cran.ism.ac.jp/"
"http://cran.stat.auckland.ac.nz/"
"http://cran.mirror.ac.za/"
"http://cran.csie.ntu.edu.tw/")
(imagemagick
;; from http://www.imagemagick.org/script/download.php
;; (without mirrors that are unavailable or not up to date)
;; mirrors keeping old versions at the top level
"https://sunsite.icm.edu.pl/packages/ImageMagick/"
;; mirrors moving old versions to "legacy"
"http://mirrors-usa.go-parts.com/mirrors/ImageMagick/"
"http://mirror.checkdomain.de/imagemagick/"
"http://ftp.surfnet.nl/pub/ImageMagick/"
"http://mirror.searchdaimon.com/ImageMagick"
"http://mirror.is.co.za/pub/imagemagick/"
"http://www.imagemagick.org/download/"
"ftp://mirror.aarnet.edu.au/pub/imagemagick/"
"ftp://ftp.kddlabs.co.jp/graphics/ImageMagick/"
"ftp://ftp.u-aizu.ac.jp/pub/graphics/image/ImageMagick/imagemagick.org/"
"ftp://ftp.nluug.nl/pub/ImageMagick/"
"ftp://ftp.tpnet.pl/pub/graphics/ImageMagick/"
"ftp://ftp.fifi.org/pub/ImageMagick/"
;; one legacy location as a last resort
"http://www.imagemagick.org/download/legacy/")
(debian
"http://ftp.de.debian.org/debian/"
"http://ftp.fr.debian.org/debian/"
"http://ftp.debian.org/debian/"
"http://archive.debian.org/debian/")
(kde
"http://download.kde.org"
"http://download.kde.org/Attic" ; for when it gets archived.
;; Mirrors from http://files.kde.org/extra/mirrors.html
;; Europe
"http://mirror.easyname.at/kde"
"http://mirror.karneval.cz/pub/kde"
"http://ftp.fi.muni.cz/pub/kde/"
"http://mirror.oss.maxcdn.com/kde/"
"http://ftp5.gwdg.de/pub/linux/kde/"
"http://ftp-stud.fht-esslingen.de/Mirrors/ftp.kde.org/pub/kde/"
"http://mirror.klaus-uwe.me/kde/ftp/"
"http://kde.beta.mirror.ga/"
"http://kde.alpha.mirror.ga/"
"http://mirror.netcologne.de/kde"
"http://vesta.informatik.rwth-aachen.de/ftp/pub/mirror/kde/"
"http://ftp.rz.uni-wuerzburg.de/pub/unix/kde/"
"http://mirrors.dotsrc.org/kde/"
"http://ftp.funet.fi/pub/mirrors/ftp.kde.org/pub/kde/"
"http://kde-mirror.freenux.org/"
"http://mirrors.ircam.fr/pub/KDE/"
"http://www-ftp.lip6.fr/pub/X11/kde/"
"http://fr2.rpmfind.net/linux/KDE/"
"http://kde.mirror.anlx.net/"
"http://www.mirrorservice.org/sites/ftp.kde.org/pub/kde/"
"http://ftp.heanet.ie/mirrors/ftp.kde.org/"
"http://ftp.nluug.nl/pub/windowing/kde/"
"http://ftp.surfnet.nl/windowing/kde/"
"http://ftp.icm.edu.pl/pub/unix/kde/"
"http://ftp.pbone.net/pub/kde/"
"http://piotrkosoft.net/pub/mirrors/ftp.kde.org/"
"http://mirrors.fe.up.pt/pub/kde/"
"http://ftp.iasi.roedu.net/pub/mirrors/ftp.kde.org/"
"http://ftp.acc.umu.se/mirror/kde.org/ftp/"
"http://kde.ip-connect.vn.ua/"
;; North America
"http://mirror.its.dal.ca/kde/"
"http://mirror.csclub.uwaterloo.ca/kde/"
"http://mirror.cc.columbia.edu/pub/software/kde/"
"http://mirrors-usa.go-parts.com/kde"
"http://kde.mirrors.hoobly.com/"
"http://ftp.ussg.iu.edu/kde/"
"http://mirrors.mit.edu/kde/"
"http://kde.mirrors.tds.net/pub/kde/"
;; Oceania
"http://ftp.kddlabs.co.jp/pub/X11/kde/"
"http://kde.mirror.uber.com.au/")
(openbsd
"https://ftp.openbsd.org/pub/OpenBSD/"
;; Anycast CDN redirecting to your friendly local mirror.
"https://mirrors.evowise.com/pub/OpenBSD/"
;; Other HTTPS mirrors from https://www.openbsd.org/ftp.html
"https://mirror.aarnet.edu.au/pub/OpenBSD/"
"https://ftp2.eu.openbsd.org/pub/OpenBSD/"
"https://openbsd.c3sl.ufpr.br/pub/OpenBSD/"
"https://openbsd.ipacct.com/pub/OpenBSD/"
"https://ftp.OpenBSD.org/pub/OpenBSD/"
"https://openbsd.cs.toronto.edu/pub/OpenBSD/"
"https://openbsd.delfic.org/pub/OpenBSD/"
"https://openbsd.mirror.netelligent.ca/pub/OpenBSD/"
"https://mirrors.ucr.ac.cr/pub/OpenBSD/"
"https://mirrors.dotsrc.org/pub/OpenBSD/"
"https://mirror.one.com/pub/OpenBSD/"
"https://ftp.fr.openbsd.org/pub/OpenBSD/"
"https://ftp2.fr.openbsd.org/pub/OpenBSD/"
"https://mirrors.ircam.fr/pub/OpenBSD/"
"https://ftp.spline.de/pub/OpenBSD/"
"https://mirror.hs-esslingen.de/pub/OpenBSD/"
"https://ftp.halifax.rwth-aachen.de/openbsd/"
"https://ftp.hostserver.de/pub/OpenBSD/"
"https://ftp.fau.de/pub/OpenBSD/"
"https://ftp.cc.uoc.gr/pub/OpenBSD/"
"https://openbsd.hk/pub/OpenBSD/"
"https://ftp.heanet.ie/pub/OpenBSD/"
"https://openbsd.mirror.garr.it/pub/OpenBSD/"
"https://mirror.litnet.lt/pub/OpenBSD/"
"https://mirror.meerval.net/pub/OpenBSD/"
"https://ftp.nluug.nl/pub/OpenBSD/"
"https://ftp.bit.nl/pub/OpenBSD/"
"https://mirrors.dalenys.com/pub/OpenBSD/"
"https://ftp.icm.edu.pl/pub/OpenBSD/"
"https://ftp.rnl.tecnico.ulisboa.pt/pub/OpenBSD/"
"https://mirrors.pidginhost.com/pub/OpenBSD/"
"https://mirror.yandex.ru/pub/OpenBSD/"
"https://ftp.eu.openbsd.org/pub/OpenBSD/"
"https://ftp.yzu.edu.tw/pub/OpenBSD/"
"https://www.mirrorservice.org/pub/OpenBSD/"
"https://anorien.csc.warwick.ac.uk/pub/OpenBSD/"
"https://mirror.bytemark.co.uk/pub/OpenBSD/"
"https://mirrors.sonic.net/pub/OpenBSD/"
"https://ftp3.usa.openbsd.org/pub/OpenBSD/"
"https://mirrors.syringanetworks.net/pub/OpenBSD/"
"https://openbsd.mirror.constant.com/pub/OpenBSD/"
"https://ftp4.usa.openbsd.org/pub/OpenBSD/"
"https://ftp5.usa.openbsd.org/pub/OpenBSD/"
"https://mirror.esc7.net/pub/OpenBSD/"))))
(define %mirror-file
;; Copy of the list of mirrors to a file. This allows us to keep a single
;; copy in the store, and computing it here avoids repeated calls to
;; 'object->string'.
(plain-file "mirrors" (object->string %mirrors)))
(define %content-addressed-mirrors
;; List of content-addressed mirrors. Each mirror is represented as a
;; procedure that takes a file name, an algorithm (symbol) and a hash
;; (bytevector), and returns a URL or #f.
'(begin
(use-modules (guix base32))
(define (guix-publish host)
(lambda (file algo hash)
;; Files served by 'guix publish' are accessible under a single
;; hash algorithm.
(string-append "https://" host "/file/"
file "/" (symbol->string algo) "/"
(bytevector->nix-base32-string hash))))
;; XXX: (guix base16) appeared in March 2017 (and thus 0.13.0) so old
;; installations of the daemon might lack it. Thus, load it lazily to
;; avoid gratuitous errors. See <https://bugs.gnu.org/33542>.
(module-autoload! (current-module)
'(guix base16) '(bytevector->base16-string))
(list (guix-publish "mirror.hydra.gnu.org")
(guix-publish "berlin.guixsd.org")
(lambda (file algo hash)
;; 'tarballs.nixos.org' supports several algorithms.
(string-append "https://tarballs.nixos.org/"
(symbol->string algo) "/"
(bytevector->nix-base32-string hash)))
(lambda (file algo hash)
;; Software Heritage usually archives VCS history rather than
;; tarballs, but tarballs are sometimes available (and can be
;; explicitly stored there.) For example, see
;; <https://archive.softwareheritage.org/api/1/content/sha256:92d0fa1c311cacefa89853bdb53c62f4110cdfda3820346b59cbd098f40f955e/>.
(string-append "https://archive.softwareheritage.org/api/1/content/"
(symbol->string algo) ":"
(bytevector->base16-string hash) "/raw/")))))
(define %content-addressed-mirror-file
;; Content-addressed mirrors stored in a file.
(plain-file "content-addressed-mirrors"
(object->string %content-addressed-mirrors)))
(define built-in-builders*
(let ((proc (store-lift built-in-builders)))
(lambda ()
"Return, as a monadic value, the list of built-in builders supported by
the daemon; cache the return value."
(mcached (proc) built-in-builders))))
(define* (built-in-download file-name url
#:key system hash-algo hash
mirrors content-addressed-mirrors
(guile 'unused))
"Download FILE-NAME from URL using the built-in 'download' builder.
This is an \"out-of-band\" download in that the returned derivation does not
explicitly depend on Guile, GnuTLS, etc. Instead, the daemon performs the
download by itself using its own dependencies."
(mlet %store-monad ((mirrors (lower-object mirrors))
(content-addressed-mirrors
(lower-object content-addressed-mirrors)))
(raw-derivation file-name "builtin:download" '()
#:system system
#:hash-algo hash-algo
#:hash hash
#:inputs `((,mirrors)
(,content-addressed-mirrors))
;; Honor the user's proxy and locale settings.
#:leaked-env-vars '("http_proxy" "https_proxy"
"LC_ALL" "LC_MESSAGES" "LANG"
"COLUMNS")
#:env-vars `(("url" . ,(object->string url))
("mirrors" . ,mirrors)
("content-addressed-mirrors"
. ,content-addressed-mirrors))
;; Do not offload this derivation because we cannot be
;; sure that the remote daemon supports the 'download'
;; built-in. We may remove this limitation when support
;; for that built-in is widespread.
#:local-build? #t)))
(define* (url-fetch url hash-algo hash
#:optional name
#:key (system (%current-system))
(guile (default-guile)))
"Return a fixed-output derivation that fetches URL (a string, or a list of
strings denoting alternate URLs), which is expected to have hash HASH of type
HASH-ALGO (a symbol). By default, the file name is the base name of URL;
optionally, NAME can specify a different file name.
When one of the URL starts with mirror://, then its host part is
interpreted as the name of a mirror scheme, taken from %MIRROR-FILE.
Alternately, when URL starts with file://, return the corresponding file name
in the store."
(define file-name
(match url
((head _ ...)
(basename head))
(_
(basename url))))
(let ((uri (and (string? url) (string->uri url))))
(if (or (and (string? url) (not uri))
(and uri (memq (uri-scheme uri) '(#f file))))
(interned-file (if uri (uri-path uri) url)
(or name file-name))
(mlet %store-monad ((builtins (built-in-builders*)))
;; The "download" built-in builder was added in guix-daemon in
;; Nov. 2016 and made it in the 0.12.0 release of Dec. 2016. We now
;; require it.
(unless (member "download" builtins)
(error "'guix-daemon' is too old, please upgrade" builtins))
(built-in-download (or name file-name) url
#:guile guile
#:system system
#:hash-algo hash-algo
#:hash hash
#:mirrors %mirror-file
#:content-addressed-mirrors
%content-addressed-mirror-file)))))
(define* (url-fetch/tarbomb url hash-algo hash
#:optional name
#:key (system (%current-system))
(guile (default-guile)))
"Similar to 'url-fetch' but unpack the file from URL in a directory of its
own. This helper makes it easier to deal with \"tar bombs\"."
(define file-name
(match url
((head _ ...)
(basename head))
(_
(basename url))))
(define gzip
(module-ref (resolve-interface '(gnu packages compression)) 'gzip))
(define tar
(module-ref (resolve-interface '(gnu packages base)) 'tar))
(mlet %store-monad ((drv (url-fetch url hash-algo hash
(string-append "tarbomb-"
(or name file-name))
#:system system
#:guile guile)))
;; Take the tar bomb, and simply unpack it as a directory.
;; Use ungrafted tar/gzip so that the resulting tarball doesn't depend on
;; whether grafts are enabled.
(gexp->derivation (or name file-name)
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(mkdir #$output)
(setenv "PATH" (string-append #$gzip "/bin"))
(chdir #$output)
(invoke (string-append #$tar "/bin/tar")
"xf" #$drv)))
#:graft? #f
#:local-build? #t)))
(define* (url-fetch/zipbomb url hash-algo hash
#:optional name
#:key (system (%current-system))
(guile (default-guile)))
"Similar to 'url-fetch' but unpack the zip file at URL in a directory of its
own. This helper makes it easier to deal with \"zip bombs\"."
(define file-name
(match url
((head _ ...)
(basename head))
(_
(basename url))))
(define unzip
(module-ref (resolve-interface '(gnu packages compression)) 'unzip))
(mlet %store-monad ((drv (url-fetch url hash-algo hash
(string-append "zipbomb-"
(or name file-name))
#:system system
#:guile guile)))
;; Take the zip bomb, and simply unpack it as a directory.
;; Use ungrafted unzip so that the resulting tarball doesn't depend on
;; whether grafts are enabled.
(gexp->derivation (or name file-name)
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(mkdir #$output)
(chdir #$output)
(invoke (string-append #$unzip "/bin/unzip")
#$drv)))
#:graft? #f
#:local-build? #t)))
(define* (download-to-store store url #:optional (name (basename url))
#:key (log (current-error-port)) recursive?
(verify-certificate? #t))
"Download from URL to STORE, either under NAME or URL's basename if
omitted. Write progress reports to LOG. RECURSIVE? has the same effect as
the same-named parameter of 'add-to-store'. VERIFY-CERTIFICATE? determines
whether or not to validate HTTPS server certificates."
(define uri
(string->uri url))
(if (or (not uri) (memq (uri-scheme uri) '(file #f)))
(add-to-store store name recursive? "sha256"
(if uri (uri-path uri) url))
(call-with-temporary-output-file
(lambda (temp port)
(let ((result
(parameterize ((current-output-port log))
(build:url-fetch url temp
#:mirrors %mirrors
#:verify-certificate?
verify-certificate?))))
(close port)
(and result
(add-to-store store name recursive? "sha256" temp)))))))
;;; download.scm ends here
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