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serialization: 'restore-file' errors out upon non-convertible file names. 

Fixes <https://bugs.gnu.org/33603>.
Reported by Maxim Cournoyer <maxim.cournoyer@gmail.com>.

* guix/serialization.scm (port-conversion-strategy): New variable.
(restore-file): Parameterize it.
* tests/nar.scm ("restore-file with non-UTF8 locale"): New test.
This commit is contained in:
Ludovic Courtès 2019-01-18 14:23:31 +01:00
parent 7bf1dc7570
commit 9fe3f11398
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GPG Key ID: 090B11993D9AEBB5
2 changed files with 46 additions and 3 deletions
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13
guix/serialization.scm
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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -380,10 +380,19 @@ which case you can use 'identity'."
(&nar-error (file f) (port port))))))
(write-string ")" p)))
(define port-conversion-strategy
(fluid->parameter %default-port-conversion-strategy))
(define (restore-file port file)
"Read a file (possibly a directory structure) in Nar format from PORT.
Restore it as FILE."
(parameterize ((currently-restored-file file))
(parameterize ((currently-restored-file file)
;; Error out if we can convert file names to the current
;; locale. (XXX: We'd prefer UTF-8 encoding for file names
;; regardless of the locale, but that's what Guile gives us
;; so far.)
(port-conversion-strategy 'error))
(let ((signature (read-string port)))
(unless (equal? signature %archive-version-1)
(raise

36
tests/nar.scm
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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -334,6 +334,40 @@
(lambda ()
(rmdir input)))))
(test-eq "restore-file with non-UTF8 locale" ;<https://bugs.gnu.org/33603>
'encoding-error
(let* ((file (search-path %load-path "guix.scm"))
(output (string-append %test-dir "/output"))
(locale (setlocale LC_ALL "C")))
(dynamic-wind
(lambda () #t)
(lambda ()
(define-values (port get-bytevector)
(open-bytevector-output-port))
(write-file-tree "root" port
#:file-type+size
(match-lambda
("root" (values 'directory 0))
("root/λ" (values 'regular 0)))
#:file-port (const (%make-void-port "r"))
#:symlink-target (const #f)
#:directory-entries (const '("λ")))
(close-port port)
(mkdir %test-dir)
(catch 'encoding-error
(lambda ()
;; This show throw to 'encoding-error.
(restore-file (open-bytevector-input-port (get-bytevector))
output)
(scandir output))
(lambda args
'encoding-error)))
(lambda ()
(false-if-exception (rm-rf %test-dir))
(setlocale LC_ALL locale)))))
(test-assert "restore-file-set (signed, valid)"
(with-store store
(let* ((texts (unfold (cut >= <> 10)