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52c529ff20
* guix/git-authenticate.scm (commit-signing-key): Add
#:disallowed-hash-algorithms and honor it.
(authenticate-commit)[recent-commit?]: New variable.
Pass #:disallowed-hash-algorithms to 'commit-signing-key'.
* tests/git-authenticate.scm ("signed commits, SHA1 signature"): New test.
356 lines
16 KiB
Scheme
356 lines
16 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2020 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (test-git-authenticate)
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#:use-module (git)
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#:use-module (guix git)
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#:use-module (guix git-authenticate)
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#:use-module (guix openpgp)
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#:use-module (guix tests git)
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#:use-module (guix tests gnupg)
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#:use-module (guix build utils)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-34)
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#:use-module (srfi srfi-64)
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#:use-module (rnrs bytevectors)
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#:use-module (rnrs io ports))
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;; Test the (guix git-authenticate) tools.
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(define %ed25519-public-key-file
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(search-path %load-path "tests/ed25519.key"))
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(define %ed25519-secret-key-file
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(search-path %load-path "tests/ed25519.sec"))
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(define %ed25519bis-public-key-file
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(search-path %load-path "tests/ed25519bis.key"))
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(define %ed25519bis-secret-key-file
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(search-path %load-path "tests/ed25519bis.sec"))
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(define (read-openpgp-packet file)
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(get-openpgp-packet
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(open-bytevector-input-port
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(call-with-input-file file read-radix-64))))
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(define key-fingerprint
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(compose openpgp-format-fingerprint
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openpgp-public-key-fingerprint
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read-openpgp-packet))
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(define (key-id file)
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(define id
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(openpgp-public-key-id (read-openpgp-packet)))
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(string-pad (number->string id 16) 16 #\0))
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(define (gpg+git-available?)
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(and (which (git-command))
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(which (gpg-command)) (which (gpgconf-command))))
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(test-begin "git-authenticate")
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(unless (which (git-command)) (test-skip 1))
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(test-assert "unsigned commits"
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(with-temporary-git-repository directory
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'((add "a.txt" "A")
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(commit "first commit")
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(add "b.txt" "B")
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(commit "second commit"))
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(with-repository directory repository
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(let ((commit1 (find-commit repository "first"))
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(commit2 (find-commit repository "second")))
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(guard (c ((unsigned-commit-error? c)
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(oid=? (git-authentication-error-commit c)
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(commit-id commit1))))
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(authenticate-commits repository (list commit1 commit2)
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#:keyring-reference "master")
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'failed)))))
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(unless (which (git-command)) (test-skip 1))
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(test-assert "signed commits, SHA1 signature"
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(with-fresh-gnupg-setup (list %ed25519-public-key-file
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%ed25519-secret-key-file)
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;; Force use of SHA1 for signatures.
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(call-with-output-file (string-append (getenv "GNUPGHOME") "/gpg.conf")
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(lambda (port)
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(display "digest-algo sha1" port)))
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(with-temporary-git-repository directory
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`((add "a.txt" "A")
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(add "signer.key" ,(call-with-input-file %ed25519-public-key-file
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get-string-all))
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(add ".guix-authorizations"
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,(object->string
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`(authorizations (version 0)
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((,(key-fingerprint %ed25519-public-key-file)
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(name "Charlie"))))))
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(commit "first commit"
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(signer ,(key-fingerprint %ed25519-public-key-file))))
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(with-repository directory repository
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(let ((commit (find-commit repository "first")))
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(guard (c ((unsigned-commit-error? c)
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(oid=? (git-authentication-error-commit c)
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(commit-id commit))))
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(authenticate-commits repository (list commit)
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#:keyring-reference "master")
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'failed))))))
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(unless (gpg+git-available?) (test-skip 1))
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(test-assert "signed commits, default authorizations"
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(with-fresh-gnupg-setup (list %ed25519-public-key-file
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%ed25519-secret-key-file)
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(with-temporary-git-repository directory
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`((add "signer.key" ,(call-with-input-file %ed25519-public-key-file
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get-string-all))
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(commit "zeroth commit")
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(add "a.txt" "A")
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(commit "first commit"
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(signer ,(key-fingerprint %ed25519-public-key-file)))
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(add "b.txt" "B")
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(commit "second commit"
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(signer ,(key-fingerprint %ed25519-public-key-file))))
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(with-repository directory repository
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(let ((commit1 (find-commit repository "first"))
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(commit2 (find-commit repository "second")))
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(authenticate-commits repository (list commit1 commit2)
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#:default-authorizations
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(list (openpgp-public-key-fingerprint
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(read-openpgp-packet
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%ed25519-public-key-file)))
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#:keyring-reference "master"))))))
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(unless (gpg+git-available?) (test-skip 1))
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(test-assert "signed commits, .guix-authorizations"
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(with-fresh-gnupg-setup (list %ed25519-public-key-file
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%ed25519-secret-key-file)
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(with-temporary-git-repository directory
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`((add "signer.key" ,(call-with-input-file %ed25519-public-key-file
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get-string-all))
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(add ".guix-authorizations"
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,(object->string
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`(authorizations (version 0)
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((,(key-fingerprint
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%ed25519-public-key-file)
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(name "Charlie"))))))
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(commit "zeroth commit")
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(add "a.txt" "A")
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(commit "first commit"
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(signer ,(key-fingerprint %ed25519-public-key-file)))
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(add ".guix-authorizations"
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,(object->string `(authorizations (version 0) ()))) ;empty
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(commit "second commit"
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(signer ,(key-fingerprint %ed25519-public-key-file)))
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(add "b.txt" "B")
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(commit "third commit"
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(signer ,(key-fingerprint %ed25519-public-key-file))))
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(with-repository directory repository
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(let ((commit1 (find-commit repository "first"))
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(commit2 (find-commit repository "second"))
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(commit3 (find-commit repository "third")))
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;; COMMIT1 and COMMIT2 are fine.
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(and (authenticate-commits repository (list commit1 commit2)
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#:keyring-reference "master")
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;; COMMIT3 is signed by an unauthorized key according to its
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;; parent's '.guix-authorizations' file.
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(guard (c ((unauthorized-commit-error? c)
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(and (oid=? (git-authentication-error-commit c)
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(commit-id commit3))
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(bytevector=?
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(openpgp-public-key-fingerprint
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(unauthorized-commit-error-signing-key c))
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(openpgp-public-key-fingerprint
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(read-openpgp-packet
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%ed25519-public-key-file))))))
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(authenticate-commits repository
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(list commit1 commit2 commit3)
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#:keyring-reference "master")
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'failed)))))))
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(unless (gpg+git-available?) (test-skip 1))
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(test-assert "signed commits, .guix-authorizations, unauthorized merge"
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(with-fresh-gnupg-setup (list %ed25519-public-key-file
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%ed25519-secret-key-file
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%ed25519bis-public-key-file
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%ed25519bis-secret-key-file)
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(with-temporary-git-repository directory
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`((add "signer1.key"
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,(call-with-input-file %ed25519-public-key-file
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get-string-all))
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(add "signer2.key"
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,(call-with-input-file %ed25519bis-public-key-file
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get-string-all))
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(add ".guix-authorizations"
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,(object->string
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`(authorizations (version 0)
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((,(key-fingerprint
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%ed25519-public-key-file)
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(name "Alice"))))))
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(commit "zeroth commit")
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(add "a.txt" "A")
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(commit "first commit"
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(signer ,(key-fingerprint %ed25519-public-key-file)))
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(branch "devel")
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(checkout "devel")
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(add "devel/1.txt" "1")
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(commit "first devel commit"
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(signer ,(key-fingerprint %ed25519bis-public-key-file)))
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(checkout "master")
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(add "b.txt" "B")
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(commit "second commit"
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(signer ,(key-fingerprint %ed25519-public-key-file)))
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(merge "devel" "merge"
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(signer ,(key-fingerprint %ed25519-public-key-file))))
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(with-repository directory repository
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(let ((master1 (find-commit repository "first commit"))
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(master2 (find-commit repository "second commit"))
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(devel1 (find-commit repository "first devel commit"))
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(merge (find-commit repository "merge")))
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(define (correct? c commit)
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(and (oid=? (git-authentication-error-commit c)
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(commit-id commit))
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(bytevector=?
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(openpgp-public-key-fingerprint
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(unauthorized-commit-error-signing-key c))
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(openpgp-public-key-fingerprint
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(read-openpgp-packet %ed25519bis-public-key-file)))))
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(and (authenticate-commits repository (list master1 master2)
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#:keyring-reference "master")
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;; DEVEL1 is signed by an unauthorized key according to its
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;; parent's '.guix-authorizations' file.
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(guard (c ((unauthorized-commit-error? c)
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(correct? c devel1)))
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(authenticate-commits repository
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(list master1 devel1)
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#:keyring-reference "master")
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#f)
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;; MERGE is authorized but one of its ancestors is not.
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(guard (c ((unauthorized-commit-error? c)
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(correct? c devel1)))
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(authenticate-commits repository
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(list master1 master2
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devel1 merge)
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#:keyring-reference "master")
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#f)))))))
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(unless (gpg+git-available?) (test-skip 1))
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(test-assert "signed commits, .guix-authorizations, authorized merge"
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(with-fresh-gnupg-setup (list %ed25519-public-key-file
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%ed25519-secret-key-file
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%ed25519bis-public-key-file
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%ed25519bis-secret-key-file)
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(with-temporary-git-repository directory
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`((add "signer1.key"
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,(call-with-input-file %ed25519-public-key-file
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get-string-all))
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(add "signer2.key"
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,(call-with-input-file %ed25519bis-public-key-file
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get-string-all))
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(add ".guix-authorizations"
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,(object->string
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`(authorizations (version 0)
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((,(key-fingerprint
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%ed25519-public-key-file)
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(name "Alice"))))))
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(commit "zeroth commit")
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(add "a.txt" "A")
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(commit "first commit"
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(signer ,(key-fingerprint %ed25519-public-key-file)))
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(branch "devel")
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(checkout "devel")
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(add ".guix-authorizations"
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,(object->string ;add the second signer
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`(authorizations (version 0)
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((,(key-fingerprint
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%ed25519-public-key-file)
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(name "Alice"))
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(,(key-fingerprint
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%ed25519bis-public-key-file))))))
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(commit "first devel commit"
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(signer ,(key-fingerprint %ed25519-public-key-file)))
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(add "devel/2.txt" "2")
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(commit "second devel commit"
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(signer ,(key-fingerprint %ed25519bis-public-key-file)))
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(checkout "master")
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(add "b.txt" "B")
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(commit "second commit"
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(signer ,(key-fingerprint %ed25519-public-key-file)))
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(merge "devel" "merge"
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(signer ,(key-fingerprint %ed25519-public-key-file)))
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;; After the merge, the second signer is authorized.
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(add "c.txt" "C")
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(commit "third commit"
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(signer ,(key-fingerprint %ed25519bis-public-key-file))))
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(with-repository directory repository
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(let ((master1 (find-commit repository "first commit"))
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(master2 (find-commit repository "second commit"))
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(devel1 (find-commit repository "first devel commit"))
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(devel2 (find-commit repository "second devel commit"))
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(merge (find-commit repository "merge"))
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(master3 (find-commit repository "third commit")))
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(authenticate-commits repository
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(list master1 master2 devel1 devel2
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merge master3)
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#:keyring-reference "master"))))))
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(unless (gpg+git-available?) (test-skip 1))
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(test-assert "signed commits, .guix-authorizations removed"
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(with-fresh-gnupg-setup (list %ed25519-public-key-file
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%ed25519-secret-key-file)
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(with-temporary-git-repository directory
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`((add "signer.key" ,(call-with-input-file %ed25519-public-key-file
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get-string-all))
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(add ".guix-authorizations"
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,(object->string
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`(authorizations (version 0)
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((,(key-fingerprint
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%ed25519-public-key-file)
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(name "Charlie"))))))
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(commit "zeroth commit")
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(add "a.txt" "A")
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(commit "first commit"
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(signer ,(key-fingerprint %ed25519-public-key-file)))
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(remove ".guix-authorizations")
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(commit "second commit"
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(signer ,(key-fingerprint %ed25519-public-key-file)))
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(add "b.txt" "B")
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(commit "third commit"
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(signer ,(key-fingerprint %ed25519-public-key-file))))
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(with-repository directory repository
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(let ((commit1 (find-commit repository "first"))
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(commit2 (find-commit repository "second"))
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(commit3 (find-commit repository "third")))
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;; COMMIT1 and COMMIT2 are fine.
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(and (authenticate-commits repository (list commit1 commit2)
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#:keyring-reference "master")
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;; COMMIT3 is rejected because COMMIT2 removes
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;; '.guix-authorizations'.
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(guard (c ((unauthorized-commit-error? c)
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(oid=? (git-authentication-error-commit c)
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(commit-id commit2))))
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(authenticate-commits repository
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(list commit1 commit2 commit3)
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#:keyring-reference "master")
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'failed)))))))
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(test-end "git-authenticate")
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