guix/download.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
   3 ;;; Copyright © 2013, 2014, 2015 Andreas Enge <andreas@enge.fr>
   4 ;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
   5 ;;; Copyright © 2016 Alex Griffin <a@ajgrf.com>
   6 ;;; Copyright © 2016 David Craven <david@craven.ch>
   7 ;;; Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
   8 ;;;
   9 ;;; This file is part of GNU Guix.
  10 ;;;
  11 ;;; GNU Guix is free software; you can redistribute it and/or modify it
  12 ;;; under the terms of the GNU General Public License as published by
  13 ;;; the Free Software Foundation; either version 3 of the License, or (at
  14 ;;; your option) any later version.
  15 ;;;
  16 ;;; GNU Guix is distributed in the hope that it will be useful, but
  17 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;;; GNU General Public License for more details.
  20 ;;;
  21 ;;; You should have received a copy of the GNU General Public License
  22 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 (define-module (guix download)
  25   #:use-module (ice-9 match)
  26   #:use-module (guix derivations)
  27   #:use-module (guix packages)
  28   #:use-module (guix store)
  29   #:use-module ((guix build download) #:prefix build:)
  30   #:use-module (guix monads)
  31   #:use-module (guix gexp)
  32   #:use-module (guix utils)
  33   #:use-module (web uri)
  34   #:use-module (srfi srfi-1)
  35   #:use-module (srfi srfi-26)
  36   #:export (%mirrors
  37             url-fetch
  38             url-fetch/tarbomb
  39             url-fetch/zipbomb
  40             download-to-store))
  41
  42 ;;; Commentary:
  43 ;;;
  44 ;;; Produce fixed-output derivations with data fetched over HTTP or FTP.
  45 ;;;
  46 ;;; Code:
  47
  48 (define %mirrors
  49   ;; Mirror lists used when `mirror://' URLs are passed.
  50   (let* ((gnu-mirrors
  51           '(;; This one redirects to a (supposedly) nearby and (supposedly)
  52             ;; up-to-date mirror.
  53             "https://ftpmirror.gnu.org/gnu/"
  54
  55             "ftp://ftp.cs.tu-berlin.de/pub/gnu/"
  56             "ftp://ftp.funet.fi/pub/mirrors/ftp.gnu.org/gnu/"
  57
  58             ;; This one is the master repository, and thus it's always
  59             ;; up-to-date.
  60             "http://ftp.gnu.org/pub/gnu/")))
  61     `((gnu ,@gnu-mirrors)
  62       (gcc
  63        "ftp://ftp.nluug.nl/mirror/languages/gcc/"
  64        "ftp://ftp.fu-berlin.de/unix/languages/gcc/"
  65        "ftp://ftp.irisa.fr/pub/mirrors/gcc.gnu.org/gcc/"
  66        "ftp://gcc.gnu.org/pub/gcc/"
  67        ,@(map (cut string-append <> "/gcc") gnu-mirrors))
  68       (gnupg
  69        "http://artfiles.org/gnupg.org"
  70        "http://www.crysys.hu/"
  71        "https://gnupg.org/ftp/gcrypt/"
  72        "ftp://mirrors.dotsrc.org/gcrypt/"
  73        "ftp://mirror.cict.fr/gnupg/"
  74        "ftp://ftp.franken.de/pub/crypt/mirror/ftp.gnupg.org/gcrypt/"
  75        "ftp://ftp.freenet.de/pub/ftp.gnupg.org/gcrypt/"
  76        "ftp://ftp.hi.is/pub/mirrors/gnupg/"
  77        "ftp://ftp.heanet.ie/mirrors/ftp.gnupg.org/gcrypt/"
  78        "ftp://ftp.bit.nl/mirror/gnupg/"
  79        "ftp://ftp.surfnet.nl/pub/security/gnupg/"
  80        "ftp://ftp.iasi.roedu.net/pub/mirrors/ftp.gnupg.org/"
  81        "ftp://ftp.sunet.se/pub/security/gnupg/"
  82        "ftp://mirror.switch.ch/mirror/gnupg/"
  83        "ftp://mirror.tje.me.uk/pub/mirrors/ftp.gnupg.org/"
  84        "ftp://ftp.mirrorservice.org/sites/ftp.gnupg.org/gcrypt/"
  85        "ftp://ftp.ring.gr.jp/pub/net/gnupg/"
  86        "ftp://ftp.gnupg.org/gcrypt/")
  87       (gnome
  88        "http://ftp.belnet.be/ftp.gnome.org/"
  89        "http://ftp.linux.org.uk/mirrors/ftp.gnome.org/"
  90        "http://ftp.gnome.org/pub/GNOME/"
  91        "https://download.gnome.org/"
  92        "http://mirror.yandex.ru/mirrors/ftp.gnome.org/")
  93       (hackage
  94        "http://hackage.haskell.org/")
  95       (savannah
  96        "http://download.savannah.gnu.org/releases/"
  97        "http://ftp.cc.uoc.gr/mirrors/nongnu.org/"
  98        "http://ftp.twaren.net/Unix/NonGNU/"
  99        "http://mirror.csclub.uwaterloo.ca/nongnu/"
 100        "http://nongnu.askapache.com/"
 101        "http://savannah.c3sl.ufpr.br/"
 102        "http://download.savannah.gnu.org/releases-noredirect/"
 103        "http://download-mirror.savannah.gnu.org/releases/"
 104        "ftp://ftp.twaren.net/Unix/NonGNU/"
 105        "ftp://mirror.csclub.uwaterloo.ca/nongnu/"
 106        "ftp://mirror.publicns.net/pub/nongnu/"
 107        "ftp://savannah.c3sl.ufpr.br/")
 108       (sourceforge ; https://sourceforge.net/p/forge/documentation/Mirrors/
 109        "http://downloads.sourceforge.net/project/"
 110        "http://ufpr.dl.sourceforge.net/project/"
 111        "http://heanet.dl.sourceforge.net/project/"
 112        "http://freefr.dl.sourceforge.net/project/"
 113        "http://internode.dl.sourceforge.net/project/"
 114        "http://jaist.dl.sourceforge.net/project/"
 115        "http://kent.dl.sourceforge.net/project/"
 116        "http://liquidtelecom.dl.sourceforge.net/project/"
 117        ;; "http://nbtelecom.dl.sourceforge.net/project/"  ;never returns 404s
 118        "http://nchc.dl.sourceforge.net/project/"
 119        "http://ncu.dl.sourceforge.net/project/"
 120        "http://netcologne.dl.sourceforge.net/project/"
 121        "http://netix.dl.sourceforge.net/project/"
 122        "http://pilotfiber.dl.sourceforge.net/project/"
 123        "http://superb-sea2.dl.sourceforge.net/project/"
 124        "http://tenet.dl.sourceforge.net/project/"
 125        "http://vorboss.dl.sourceforge.net/project/"
 126        "http://netassist.dl.sourceforge.net/project/")
 127       (netfilter.org ; https://www.netfilter.org/mirrors.html
 128        "http://ftp.netfilter.org/pub/"
 129        "ftp://ftp.es.netfilter.org/mirrors/netfilter/"
 130        "ftp://ftp.hu.netfilter.org/"
 131        "ftp://www.lt.netfilter.org/pub/")
 132       (kernel.org
 133        "http://ramses.wh2.tu-dresden.de/pub/mirrors/kernel.org/"
 134        "http://linux-kernel.uio.no/pub/"
 135        "http://kernel.osuosl.org/pub/"
 136        "http://ftp.be.debian.org/pub/"
 137        "http://mirror.linux.org.au/"
 138        "ftp://ftp.funet.fi/pub/mirrors/ftp.kernel.org/pub/")
 139       (apache             ; from http://www.apache.org/mirrors/dist.html
 140        "http://www.eu.apache.org/dist/"
 141        "http://www.us.apache.org/dist/"
 142        "http://apache.belnet.be/"
 143        "http://mirrors.ircam.fr/pub/apache/"
 144        "http://apache-mirror.rbc.ru/pub/apache/"
 145
 146        ;; As a last resort, try the archive.
 147        "http://archive.apache.org/dist/")
 148       (xorg               ; from http://www.x.org/wiki/Releases/Download
 149        "http://www.x.org/releases/" ; main mirrors
 150        "http://mirror.csclub.uwaterloo.ca/x.org/" ; North America
 151        "http://xorg.mirrors.pair.com/"
 152        "http://mirror.us.leaseweb.net/xorg/"
 153        "ftp://mirror.csclub.uwaterloo.ca/x.org/"
 154        "ftp://xorg.mirrors.pair.com/"
 155        "ftp://artfiles.org/x.org/" ; Europe
 156        "ftp://ftp.chg.ru/pub/X11/x.org/"
 157        "ftp://ftp.fu-berlin.de/unix/X11/FTP.X.ORG/"
 158        "ftp://ftp.gwdg.de/pub/x11/x.org/"
 159        "ftp://ftp.mirrorservice.org/sites/ftp.x.org/"
 160        "ftp://ftp.ntua.gr/pub/X11/"
 161        "ftp://ftp.piotrkosoft.net/pub/mirrors/ftp.x.org/"
 162        "ftp://ftp.portal-to-web.de/pub/mirrors/x.org/"
 163        "ftp://ftp.solnet.ch/mirror/x.org/"
 164        "ftp://mi.mirror.garr.it/mirrors/x.org/"
 165        "ftp://mirror.cict.fr/x.org/"
 166        "ftp://mirror.switch.ch/mirror/X11/"
 167        "ftp://mirrors.ircam.fr/pub/x.org/"
 168        "ftp://x.mirrors.skynet.be/pub/ftp.x.org/"
 169        "http://x.cs.pu.edu.tw/" ; East Asia
 170        "ftp://ftp.cs.cuhk.edu.hk/pub/X11"
 171        "ftp://ftp.u-aizu.ac.jp/pub/x11/x.org/"
 172        "ftp://ftp.yz.yamagata-u.ac.jp/pub/X11/x.org/"
 173        "ftp://ftp.kaist.ac.kr/x.org/"
 174        "ftp://mirrors.go-part.com/xorg/"
 175        "ftp://ftp.is.co.za/pub/x.org")            ; South Africa
 176       (cpan
 177        "http://www.cpan.org/"
 178        "http://cpan.metacpan.org/"
 179        ;; A selection of HTTP mirrors from http://www.cpan.org/SITES.html.
 180        ;; Europe.
 181        "http://ftp.belnet.be/mirror/ftp.cpan.org/"
 182        "http://mirrors.nic.cz/CPAN/"
 183        "http://mirror.ibcp.fr/pub/CPAN/"
 184        "http://ftp.ntua.gr/pub/lang/perl/"
 185        "http://kvin.lv/pub/CPAN/"
 186        "http://mirror.as43289.net/pub/CPAN/"
 187        "http://cpan.cs.uu.nl/"
 188        "http://cpan.uib.no/"
 189        "http://cpan-mirror.rbc.ru/pub/CPAN/"
 190        "http://mirror.sbb.rs/CPAN/"
 191        "http://cpan.lnx.sk/"
 192        "http://ftp.rediris.es/mirror/CPAN/"
 193        "http://mirror.ox.ac.uk/sites/www.cpan.org/"
 194        ;; Africa.
 195        "http://mirror.liquidtelecom.com/CPAN/"
 196        "http://cpan.mirror.ac.za/"
 197        "http://mirror.is.co.za/pub/cpan/"
 198        "http://cpan.saix.net/"
 199        "http://mirror.ucu.ac.ug/cpan/"
 200        ;; North America.
 201        "http://mirrors.gossamer-threads.com/CPAN/"
 202        "http://mirror.csclub.uwaterloo.ca/CPAN/"
 203        "http://mirrors.ucr.ac.cr/CPAN/"
 204        "http://www.msg.com.mx/CPAN/"
 205        "http://mirrors.namecheap.com/CPAN/"
 206        "http://mirror.uic.edu/CPAN/"
 207        "http://mirror.datapipe.net/CPAN/"
 208        "http://mirror.cc.columbia.edu/pub/software/cpan/"
 209        "http://mirror.uta.edu/CPAN/"
 210        ;; South America.
 211        "http://cpan.mmgdesigns.com.ar/"
 212        "http://mirror.nbtelecom.com.br/CPAN/"
 213        "http://linorg.usp.br/CPAN/"
 214        "http://cpan.dcc.uchile.cl/"
 215        "http://mirror.cedia.org.ec/CPAN/"
 216        ;; Oceania.
 217        "http://cpan.mirror.serversaustralia.com.au/"
 218        "http://mirror.waia.asn.au/pub/cpan/"
 219        "http://mirror.as24220.net/pub/cpan/"
 220        "http://cpan.lagoon.nc/pub/CPAN/"
 221        "http://cpan.inspire.net.nz/"
 222        ;; Asia.
 223        "http://mirror.dhakacom.com/CPAN/"
 224        "http://mirrors.ustc.edu.cn/CPAN/"
 225        "http://ftp.cuhk.edu.hk/pub/packages/perl/CPAN/"
 226        "http://kambing.ui.ac.id/cpan/"
 227        "http://cpan.hostiran.ir/"
 228        "http://ftp.nara.wide.ad.jp/pub/CPAN/"
 229        "http://mirror.neolabs.kz/CPAN/"
 230        "http://cpan.nctu.edu.tw/"
 231        "http://cpan.ulak.net.tr/"
 232        "http://mirrors.vinahost.vn/CPAN/")
 233       (cran
 234        ;; Arbitrary mirrors from http://cran.r-project.org/mirrors.html
 235        ;; This one automatically redirects to servers worldwide
 236        "http://cran.r-project.org/"
 237        "http://cran.rstudio.com/"
 238        "http://cran.univ-lyon1.fr/"
 239        "http://cran.ism.ac.jp/"
 240        "http://cran.stat.auckland.ac.nz/"
 241        "http://cran.mirror.ac.za/"
 242        "http://cran.csie.ntu.edu.tw/")
 243       (imagemagick
 244        ;; from http://www.imagemagick.org/script/download.php
 245        ;; (without mirrors that are unavailable or not up to date)
 246        ;; mirrors keeping old versions at the top level
 247        "https://sunsite.icm.edu.pl/packages/ImageMagick/"
 248        ;; mirrors moving old versions to "legacy"
 249        "http://mirrors-usa.go-parts.com/mirrors/ImageMagick/"
 250        "http://mirror.checkdomain.de/imagemagick/"
 251        "http://ftp.surfnet.nl/pub/ImageMagick/"
 252        "http://mirror.searchdaimon.com/ImageMagick"
 253        "http://mirror.is.co.za/pub/imagemagick/"
 254        "http://www.imagemagick.org/download/"
 255        "ftp://mirror.aarnet.edu.au/pub/imagemagick/"
 256        "ftp://ftp.kddlabs.co.jp/graphics/ImageMagick/"
 257        "ftp://ftp.u-aizu.ac.jp/pub/graphics/image/ImageMagick/imagemagick.org/"
 258        "ftp://ftp.nluug.nl/pub/ImageMagick/"
 259        "ftp://ftp.tpnet.pl/pub/graphics/ImageMagick/"
 260        "ftp://ftp.fifi.org/pub/ImageMagick/"
 261        ;; one legacy location as a last resort
 262        "http://www.imagemagick.org/download/legacy/")
 263       (debian
 264        "http://ftp.de.debian.org/debian/"
 265        "http://ftp.fr.debian.org/debian/"
 266        "http://ftp.debian.org/debian/"
 267        "http://archive.debian.org/debian/")
 268       (kde
 269        "http://download.kde.org"
 270        "http://download.kde.org/Attic" ; for when it gets archived.
 271        ;; Mirrors from http://files.kde.org/extra/mirrors.html
 272        ;; Europe
 273        "http://mirror.easyname.at/kde"
 274        "http://mirror.karneval.cz/pub/kde"
 275        "http://ftp.fi.muni.cz/pub/kde/"
 276        "http://mirror.oss.maxcdn.com/kde/"
 277        "http://ftp5.gwdg.de/pub/linux/kde/"
 278        "http://ftp-stud.fht-esslingen.de/Mirrors/ftp.kde.org/pub/kde/"
 279        "http://mirror.klaus-uwe.me/kde/ftp/"
 280        "http://kde.beta.mirror.ga/"
 281        "http://kde.alpha.mirror.ga/"
 282        "http://mirror.netcologne.de/kde"
 283        "http://vesta.informatik.rwth-aachen.de/ftp/pub/mirror/kde/"
 284        "http://ftp.rz.uni-wuerzburg.de/pub/unix/kde/"
 285        "http://mirrors.dotsrc.org/kde/"
 286        "http://ftp.funet.fi/pub/mirrors/ftp.kde.org/pub/kde/"
 287        "http://kde-mirror.freenux.org/"
 288        "http://mirrors.ircam.fr/pub/KDE/"
 289        "http://www-ftp.lip6.fr/pub/X11/kde/"
 290        "http://fr2.rpmfind.net/linux/KDE/"
 291        "http://kde.mirror.anlx.net/"
 292        "http://www.mirrorservice.org/sites/ftp.kde.org/pub/kde/"
 293        "http://ftp.heanet.ie/mirrors/ftp.kde.org/"
 294        "http://ftp.nluug.nl/pub/windowing/kde/"
 295        "http://ftp.surfnet.nl/windowing/kde/"
 296        "http://ftp.icm.edu.pl/pub/unix/kde/"
 297        "http://ftp.pbone.net/pub/kde/"
 298        "http://piotrkosoft.net/pub/mirrors/ftp.kde.org/"
 299        "http://mirrors.fe.up.pt/pub/kde/"
 300        "http://ftp.iasi.roedu.net/pub/mirrors/ftp.kde.org/"
 301        "http://ftp.acc.umu.se/mirror/kde.org/ftp/"
 302        "http://kde.ip-connect.vn.ua/"
 303        ;; North America
 304        "http://mirror.its.dal.ca/kde/"
 305        "http://mirror.csclub.uwaterloo.ca/kde/"
 306        "http://mirror.cc.columbia.edu/pub/software/kde/"
 307        "http://mirrors-usa.go-parts.com/kde"
 308        "http://kde.mirrors.hoobly.com/"
 309        "http://ftp.ussg.iu.edu/kde/"
 310        "http://mirrors.mit.edu/kde/"
 311        "http://kde.mirrors.tds.net/pub/kde/"
 312        ;; Oceania
 313        "http://ftp.kddlabs.co.jp/pub/X11/kde/"
 314        "http://kde.mirror.uber.com.au/")
 315       (openbsd
 316        "https://ftp.openbsd.org/pub/OpenBSD/"
 317        ;; Anycast CDN redirecting to your friendly local mirror.
 318        "https://mirrors.evowise.com/pub/OpenBSD/"
 319        ;; Other HTTPS mirrors from https://www.openbsd.org/ftp.html
 320        "https://mirror.aarnet.edu.au/pub/OpenBSD/"
 321        "https://ftp2.eu.openbsd.org/pub/OpenBSD/"
 322        "https://openbsd.c3sl.ufpr.br/pub/OpenBSD/"
 323        "https://openbsd.ipacct.com/pub/OpenBSD/"
 324        "https://ftp.OpenBSD.org/pub/OpenBSD/"
 325        "https://openbsd.cs.toronto.edu/pub/OpenBSD/"
 326        "https://openbsd.delfic.org/pub/OpenBSD/"
 327        "https://openbsd.mirror.netelligent.ca/pub/OpenBSD/"
 328        "https://mirrors.ucr.ac.cr/pub/OpenBSD/"
 329        "https://mirrors.dotsrc.org/pub/OpenBSD/"
 330        "https://mirror.one.com/pub/OpenBSD/"
 331        "https://ftp.fr.openbsd.org/pub/OpenBSD/"
 332        "https://ftp2.fr.openbsd.org/pub/OpenBSD/"
 333        "https://mirrors.ircam.fr/pub/OpenBSD/"
 334        "https://ftp.spline.de/pub/OpenBSD/"
 335        "https://mirror.hs-esslingen.de/pub/OpenBSD/"
 336        "https://ftp.halifax.rwth-aachen.de/openbsd/"
 337        "https://ftp.hostserver.de/pub/OpenBSD/"
 338        "https://ftp.fau.de/pub/OpenBSD/"
 339        "https://ftp.cc.uoc.gr/pub/OpenBSD/"
 340        "https://openbsd.hk/pub/OpenBSD/"
 341        "https://ftp.heanet.ie/pub/OpenBSD/"
 342        "https://openbsd.mirror.garr.it/pub/OpenBSD/"
 343        "https://mirror.litnet.lt/pub/OpenBSD/"
 344        "https://mirror.meerval.net/pub/OpenBSD/"
 345        "https://ftp.nluug.nl/pub/OpenBSD/"
 346        "https://ftp.bit.nl/pub/OpenBSD/"
 347        "https://mirrors.dalenys.com/pub/OpenBSD/"
 348        "https://ftp.icm.edu.pl/pub/OpenBSD/"
 349        "https://ftp.rnl.tecnico.ulisboa.pt/pub/OpenBSD/"
 350        "https://mirrors.pidginhost.com/pub/OpenBSD/"
 351        "https://mirror.yandex.ru/pub/OpenBSD/"
 352        "https://ftp.eu.openbsd.org/pub/OpenBSD/"
 353        "https://ftp.yzu.edu.tw/pub/OpenBSD/"
 354        "https://www.mirrorservice.org/pub/OpenBSD/"
 355        "https://anorien.csc.warwick.ac.uk/pub/OpenBSD/"
 356        "https://mirror.bytemark.co.uk/pub/OpenBSD/"
 357        "https://mirrors.sonic.net/pub/OpenBSD/"
 358        "https://ftp3.usa.openbsd.org/pub/OpenBSD/"
 359        "https://mirrors.syringanetworks.net/pub/OpenBSD/"
 360        "https://openbsd.mirror.constant.com/pub/OpenBSD/"
 361        "https://ftp4.usa.openbsd.org/pub/OpenBSD/"
 362        "https://ftp5.usa.openbsd.org/pub/OpenBSD/"
 363        "https://mirror.esc7.net/pub/OpenBSD/"))))
 364
 365 (define %mirror-file
 366   ;; Copy of the list of mirrors to a file.  This allows us to keep a single
 367   ;; copy in the store, and computing it here avoids repeated calls to
 368   ;; 'object->string'.
 369   (plain-file "mirrors" (object->string %mirrors)))
 370
 371 (define %content-addressed-mirrors
 372   ;; List of content-addressed mirrors.  Each mirror is represented as a
 373   ;; procedure that takes a file name, an algorithm (symbol) and a hash
 374   ;; (bytevector), and returns a URL or #f.
 375   '(begin
 376      (use-modules (guix base32))
 377
 378      (define (guix-publish host)
 379        (lambda (file algo hash)
 380          ;; Files served by 'guix publish' are accessible under a single
 381          ;; hash algorithm.
 382          (string-append "https://" host "/file/"
 383                         file "/" (symbol->string algo) "/"
 384                         (bytevector->nix-base32-string hash))))
 385
 386      ;; XXX: (guix base16) appeared in March 2017 (and thus 0.13.0) so old
 387      ;; installations of the daemon might lack it.  Thus, load it lazily to
 388      ;; avoid gratuitous errors.  See <https://bugs.gnu.org/33542>.
 389      (module-autoload! (current-module)
 390                        '(guix base16) '(bytevector->base16-string))
 391
 392      (list (guix-publish "mirror.hydra.gnu.org")
 393            (guix-publish "berlin.guixsd.org")
 394            (lambda (file algo hash)
 395              ;; 'tarballs.nixos.org' supports several algorithms.
 396              (string-append "https://tarballs.nixos.org/"
 397                             (symbol->string algo) "/"
 398                             (bytevector->nix-base32-string hash)))
 399            (lambda (file algo hash)
 400              ;; Software Heritage usually archives VCS history rather than
 401              ;; tarballs, but tarballs are sometimes available (and can be
 402              ;; explicitly stored there.)  For example, see
 403              ;; <https://archive.softwareheritage.org/api/1/content/sha256:92d0fa1c311cacefa89853bdb53c62f4110cdfda3820346b59cbd098f40f955e/>.
 404              (string-append "https://archive.softwareheritage.org/api/1/content/"
 405                             (symbol->string algo) ":"
 406                             (bytevector->base16-string hash) "/raw/")))))
 407
 408 (define %content-addressed-mirror-file
 409   ;; Content-addressed mirrors stored in a file.
 410   (plain-file "content-addressed-mirrors"
 411               (object->string %content-addressed-mirrors)))
 412
 413 (define built-in-builders*
 414   (let ((cache (make-weak-key-hash-table)))
 415     (lambda ()
 416       "Return, as a monadic value, the list of built-in builders supported by
 417 the daemon."
 418       (lambda (store)
 419         ;; Memoize the result to avoid repeated RPCs.
 420         (values (or (hashq-ref cache store)
 421                     (let ((result (built-in-builders store)))
 422                       (hashq-set! cache store result)
 423                       result))
 424                 store)))))
 425
 426 (define* (built-in-download file-name url
 427                             #:key system hash-algo hash
 428                             mirrors content-addressed-mirrors
 429                             (guile 'unused))
 430   "Download FILE-NAME from URL using the built-in 'download' builder.
 431
 432 This is an \"out-of-band\" download in that the returned derivation does not
 433 explicitly depend on Guile, GnuTLS, etc.  Instead, the daemon performs the
 434 download by itself using its own dependencies."
 435   (mlet %store-monad ((mirrors (lower-object mirrors))
 436                       (content-addressed-mirrors
 437                        (lower-object content-addressed-mirrors)))
 438     (raw-derivation file-name "builtin:download" '()
 439                     #:system system
 440                     #:hash-algo hash-algo
 441                     #:hash hash
 442                     #:inputs `((,mirrors)
 443                                (,content-addressed-mirrors))
 444
 445                     ;; Honor the user's proxy and locale settings.
 446                     #:leaked-env-vars '("http_proxy" "https_proxy"
 447                                         "LC_ALL" "LC_MESSAGES" "LANG"
 448                                         "COLUMNS")
 449
 450                     #:env-vars `(("url" . ,(object->string url))
 451                                  ("mirrors" . ,mirrors)
 452                                  ("content-addressed-mirrors"
 453                                   . ,content-addressed-mirrors))
 454
 455                     ;; Do not offload this derivation because we cannot be
 456                     ;; sure that the remote daemon supports the 'download'
 457                     ;; built-in.  We may remove this limitation when support
 458                     ;; for that built-in is widespread.
 459                     #:local-build? #t)))
 460
 461 (define* (url-fetch url hash-algo hash
 462                     #:optional name
 463                     #:key (system (%current-system))
 464                     (guile (default-guile)))
 465   "Return a fixed-output derivation that fetches URL (a string, or a list of
 466 strings denoting alternate URLs), which is expected to have hash HASH of type
 467 HASH-ALGO (a symbol).  By default, the file name is the base name of URL;
 468 optionally, NAME can specify a different file name.
 469
 470 When one of the URL starts with mirror://, then its host part is
 471 interpreted as the name of a mirror scheme, taken from %MIRROR-FILE.
 472
 473 Alternately, when URL starts with file://, return the corresponding file name
 474 in the store."
 475   (define file-name
 476     (match url
 477       ((head _ ...)
 478        (basename head))
 479       (_
 480        (basename url))))
 481
 482   (let ((uri (and (string? url) (string->uri url))))
 483     (if (or (and (string? url) (not uri))
 484             (and uri (memq (uri-scheme uri) '(#f file))))
 485         (interned-file (if uri (uri-path uri) url)
 486                        (or name file-name))
 487         (mlet %store-monad ((builtins (built-in-builders*)))
 488           ;; The "download" built-in builder was added in guix-daemon in
 489           ;; Nov. 2016 and made it in the 0.12.0 release of Dec. 2016.  We now
 490           ;; require it.
 491           (unless (member "download" builtins)
 492             (error "'guix-daemon' is too old, please upgrade" builtins))
 493
 494           (built-in-download (or name file-name) url
 495                              #:guile guile
 496                              #:system system
 497                              #:hash-algo hash-algo
 498                              #:hash hash
 499                              #:mirrors %mirror-file
 500                              #:content-addressed-mirrors
 501                              %content-addressed-mirror-file)))))
 502
 503 (define* (url-fetch/tarbomb url hash-algo hash
 504                             #:optional name
 505                             #:key (system (%current-system))
 506                             (guile (default-guile)))
 507   "Similar to 'url-fetch' but unpack the file from URL in a directory of its
 508 own.  This helper makes it easier to deal with \"tar bombs\"."
 509   (define file-name
 510     (match url
 511       ((head _ ...)
 512        (basename head))
 513       (_
 514        (basename url))))
 515   (define gzip
 516     (module-ref (resolve-interface '(gnu packages compression)) 'gzip))
 517   (define tar
 518     (module-ref (resolve-interface '(gnu packages base)) 'tar))
 519
 520   (mlet %store-monad ((drv (url-fetch url hash-algo hash
 521                                       (string-append "tarbomb-"
 522                                                      (or name file-name))
 523                                       #:system system
 524                                       #:guile guile)))
 525     ;; Take the tar bomb, and simply unpack it as a directory.
 526     ;; Use ungrafted tar/gzip so that the resulting tarball doesn't depend on
 527     ;; whether grafts are enabled.
 528     (gexp->derivation (or name file-name)
 529                       (with-imported-modules '((guix build utils))
 530                         #~(begin
 531                             (use-modules (guix build utils))
 532                             (mkdir #$output)
 533                             (setenv "PATH" (string-append #$gzip "/bin"))
 534                             (chdir #$output)
 535                             (invoke (string-append #$tar "/bin/tar")
 536                                     "xf" #$drv)))
 537                       #:graft? #f
 538                       #:local-build? #t)))
 539
 540 (define* (url-fetch/zipbomb url hash-algo hash
 541                             #:optional name
 542                             #:key (system (%current-system))
 543                             (guile (default-guile)))
 544   "Similar to 'url-fetch' but unpack the zip file at URL in a directory of its
 545 own.  This helper makes it easier to deal with \"zip bombs\"."
 546   (define file-name
 547     (match url
 548       ((head _ ...)
 549        (basename head))
 550       (_
 551        (basename url))))
 552   (define unzip
 553     (module-ref (resolve-interface '(gnu packages compression)) 'unzip))
 554
 555   (mlet %store-monad ((drv (url-fetch url hash-algo hash
 556                                       (string-append "zipbomb-"
 557                                                      (or name file-name))
 558                                       #:system system
 559                                       #:guile guile)))
 560     ;; Take the zip bomb, and simply unpack it as a directory.
 561     ;; Use ungrafted unzip so that the resulting tarball doesn't depend on
 562     ;; whether grafts are enabled.
 563     (gexp->derivation (or name file-name)
 564                       (with-imported-modules '((guix build utils))
 565                         #~(begin
 566                             (use-modules (guix build utils))
 567                             (mkdir #$output)
 568                             (chdir #$output)
 569                             (invoke (string-append #$unzip "/bin/unzip")
 570                                     #$drv)))
 571                       #:graft? #f
 572                       #:local-build? #t)))
 573
 574 (define* (download-to-store store url #:optional (name (basename url))
 575                             #:key (log (current-error-port)) recursive?
 576                             (verify-certificate? #t))
 577   "Download from URL to STORE, either under NAME or URL's basename if
 578 omitted.  Write progress reports to LOG.  RECURSIVE? has the same effect as
 579 the same-named parameter of 'add-to-store'.  VERIFY-CERTIFICATE? determines
 580 whether or not to validate HTTPS server certificates."
 581   (define uri
 582     (string->uri url))
 583
 584   (if (or (not uri) (memq (uri-scheme uri) '(file #f)))
 585       (add-to-store store name recursive? "sha256"
 586                     (if uri (uri-path uri) url))
 587       (call-with-temporary-output-file
 588        (lambda (temp port)
 589          (let ((result
 590                 (parameterize ((current-output-port log))
 591                   (build:url-fetch url temp
 592                                    #:mirrors %mirrors
 593                                    #:verify-certificate?
 594                                    verify-certificate?))))
 595            (close port)
 596            (and result
 597                 (add-to-store store name recursive? "sha256" temp)))))))
 598
 599 ;;; download.scm ends here