198 lines
7.3 KiB
Scheme
198 lines
7.3 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2014 Nikita Karetnikov <nikita@karetnikov.org>
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;;; Copyright © 2014 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-substitute-binary)
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#:use-module (guix scripts substitute-binary)
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#:use-module (guix base64)
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#:use-module (guix hash)
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#:use-module (guix nar)
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#:use-module (guix pk-crypto)
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#:use-module (guix pki)
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#:use-module (rnrs bytevectors)
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#:use-module (srfi srfi-34)
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#:use-module ((srfi srfi-64) #:hide (test-error)))
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(define assert-valid-signature
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;; (guix scripts substitute-binary) does not export this function in order to
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;; avoid misuse.
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(@@ (guix scripts substitute-binary) assert-valid-signature))
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;;; XXX: Replace with 'test-error' from SRFI-64 as soon as it allow us to
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;;; catch specific exceptions.
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(define-syntax-rule (test-error* name exp)
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(test-assert name
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(catch 'quit
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(lambda ()
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exp
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#f)
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(const #t))))
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(define %keypair
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;; (display (canonical-sexp->string
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;; (generate-key "(genkey (rsa (nbits 4:1024)))")))
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(string->canonical-sexp
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"(key-data
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(public-key
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(rsa
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(n #00D74A00F16DD109A8E773291856A4EF9EE2C2D975E0BC207EA24245C9CFE39E32D8BA5442A2720A57E3A9D9E55E596A8B19CB2EF844E5E859362593914BD626433C887FB798AE87E1DA95D372DFC81E220B8802B04CEC818D9B6B4E2108817755AEBAC23D2FD2B0AB82A52FD785194F3C2D7B9327212588DB74D464EEE5DC9F5B#)
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(e #010001#)
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)
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)
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(private-key
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(rsa
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(n #00D74A00F16DD109A8E773291856A4EF9EE2C2D975E0BC207EA24245C9CFE39E32D8BA5442A2720A57E3A9D9E55E596A8B19CB2EF844E5E859362593914BD626433C887FB798AE87E1DA95D372DFC81E220B8802B04CEC818D9B6B4E2108817755AEBAC23D2FD2B0AB82A52FD785194F3C2D7B9327212588DB74D464EEE5DC9F5B#)
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(e #010001#)
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(d #40E6D963EF143E9241BC10DE7A785C988C89EB1EC33253A5796AFB38FCC804D015500EC8CBCA0F5E318EE9D660DC19E7774E2E89BFD38379297EA87EFBDAC24BA32EE5339215382B2C89F5A817FD9131CA8E8A0A70D58E26E847AD0C447053671A6B2D7746087DE058A02B17701752B8A36EB414435921615AE7CAA8AC48E451#)
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(p #00EA88C0C19FE83C09285EF49FF88A1159357FD870031C20F15EF5103FBEB10925299BCA197F7143D6792A1BA7044EDA572EC94FA6B00889F9857216CF5B984403#)
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(q #00EAFE541EE9E0531255A85CADBEF64D5F679766D7209F521ADD131CF4B7DA9DF5414901342A146EE84FAA1E35EE0D0F6CE3F5F25989C0D1E9FA5B678D78C113C9#)
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(u #59C80FA2C48181F6855691C9D443619BA46C7648056E081697C370D8096E8EF165122D5E55F8FD6A2DCC404FA8BDCDC1FD20B4D76A433F25E8FD6901EC2DBDAD#)
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)
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)
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)"))
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(define %public-key
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(find-sexp-token %keypair 'public-key))
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(define %private-key
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(find-sexp-token %keypair 'private-key))
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(define (signature-body str)
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(base64-encode
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(string->utf8
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(canonical-sexp->string
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(signature-sexp (bytevector->hash-data (sha256 (string->utf8 str))
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#:key-type 'rsa)
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%private-key
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%public-key)))))
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(define %signature-body
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(signature-body "secret"))
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(define %wrong-public-key
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(string->canonical-sexp "(public-key
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(rsa
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(n #00E05873AC2B168760343145918E954EE9AB73C026355693B192E01EE835261AA689E9EF46642E895BCD65C648524059FC450E4BA77A68F4C52D0E39EF0CC9359709AB6AAB153B63782201871325B0FDA19CB401CD99FD0C31A91CA9000AA90A77E82B89E036FB63BC1D3961207469B3B12468977148D376F8012BB12A4B11A8F1#)
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(e #010001#)
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)
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)"))
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(define %wrong-signature
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(let* ((body (string->canonical-sexp
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(utf8->string
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(base64-decode %signature-body))))
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(data (canonical-sexp->string (find-sexp-token body 'data)))
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(sig-val (canonical-sexp->string (find-sexp-token body 'sig-val)))
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(public-key (canonical-sexp->string %wrong-public-key))
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(body* (base64-encode
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(string->utf8
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(string-append "(signature \n" data sig-val
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public-key " )\n")))))
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(string-append "1;irrelevant;" body*)))
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(define* (signature str #:optional (body %signature-body))
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(string-append str ";irrelevant;" body))
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(define %signature
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(signature "1" %signature-body))
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(define %acl
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(public-keys->acl (list %public-key)))
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(test-begin "substitute-binary")
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(test-error* "not a number"
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(narinfo-signature->canonical-sexp (signature "not a number")))
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(test-error* "wrong version number"
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(narinfo-signature->canonical-sexp (signature "2")))
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(test-assert "valid narinfo-signature->canonical-sexp"
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(canonical-sexp? (narinfo-signature->canonical-sexp %signature)))
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(define-syntax-rule (test-error-condition name pred exp)
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(test-assert name
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(guard (condition ((pred condition) (pk 'true condition #t))
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(else #f))
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exp
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#f)))
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;;; XXX: Do we need a better predicate hierarchy for these tests?
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(test-error-condition "corrupt signature data"
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nar-signature-error?
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(assert-valid-signature "invalid sexp" "irrelevant"
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(open-input-string "irrelevant")
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%acl))
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(test-error-condition "unauthorized public key"
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nar-signature-error?
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(assert-valid-signature (canonical-sexp->string
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(narinfo-signature->canonical-sexp %signature))
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"irrelevant"
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(open-input-string "irrelevant")
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(public-keys->acl '())))
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(test-error-condition "invalid signature"
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nar-signature-error?
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(assert-valid-signature (canonical-sexp->string
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(narinfo-signature->canonical-sexp
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%wrong-signature))
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(sha256 (string->utf8 "secret"))
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(open-input-string "irrelevant")
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(public-keys->acl (list %wrong-public-key))))
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(define %narinfo
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"StorePath: /nix/store/foo
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URL: nar/foo
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Compression: bzip2
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NarHash: sha256:7
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NarSize: 42
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References: bar baz
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Deriver: foo.drv
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System: mips64el-linux\n")
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(define (narinfo sig)
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(format #f "~aSignature: ~a~%" %narinfo sig))
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(define %signed-narinfo
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(narinfo (signature "1" (signature-body %narinfo))))
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(test-error-condition "invalid hash"
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;; The hash of '%signature' is computed over the word "secret", not
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;; '%narinfo'.
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nar-invalid-hash-error?
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(read-narinfo (open-input-string (narinfo %signature))
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"https://example.com" %acl))
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(test-assert "valid read-narinfo"
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(read-narinfo (open-input-string %signed-narinfo)
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"https://example.com" %acl))
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(test-equal "valid write-narinfo"
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%signed-narinfo
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(call-with-output-string
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(lambda (port)
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(write-narinfo (read-narinfo (open-input-string %signed-narinfo)
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"https://example.com" %acl)
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port))))
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(test-end "substitute-binary")
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(exit (= (test-runner-fail-count (test-runner-current)) 0))
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