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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 Cyrill Schenkel <cyrill.schenkel@gmail.com>
;;; Copyright © 2014, 2015 Eric Bavier <bavier@member.fsf.org>
;;;
;;; 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 (gnu packages conkeror)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu)
  #:use-module (gnu packages)
  #:use-module (gnu packages gnuzilla))

(define-public conkeror
  (package
    (name "conkeror")
    (version "1.0pre1.20150730")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "http://repo.or.cz/w/conkeror.git/snapshot/"
                              "a1f7e879b129df5cf14ea4ce80a9c1407380ed58"
                              ".tar.gz")) ; tag: debian-1.0--pre-1+git150730-1
              (sha256
               (base32
                "1q45hc30733gz3ca2ixvw0rzzcbi7rlay7gx7kvzjv17a030nyk0"))))
    (build-system gnu-build-system)
    (inputs `(("icecat" ,icecat)))
    (arguments
     `(#:tests? #f                      ;no tests
       #:make-flags `("CC=gcc"
                      ,(string-append "PREFIX=" (assoc-ref %outputs "out")))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-after
          'install 'install-app-launcher
          (lambda* (#:key inputs outputs #:allow-other-keys)
            ;; This overwrites the installed launcher, which execs xulrunner,
            ;; with one that execs 'icecat --app'
            (let* ((out      (assoc-ref outputs "out"))
                   (datadir  (string-append out "/share/conkeror"))
                   (launcher (string-append out "/bin/conkeror")))
              (call-with-output-file launcher
                (lambda (p)
                  (format p "#!~a/bin/bash
exec ~a/bin/icecat --app ~a \"$@\"~%"
                          (assoc-ref inputs "bash") ;implicit input
                          (assoc-ref inputs "icecat")
                          (string-append datadir
                                         "/application.ini"))))
              (chmod launcher #o555)))))))
    (synopsis "Keyboard focused web browser with Emacs look and feel")
    (description "Conkeror is a highly-programmable web browser based on
Mozilla XULRunner which is the base of all Mozilla products including Firefox.
Conkeror has a sophisticated keyboard system for running commands and
interacting with web page content, modelled after Emacs and Lynx.  It is
self-documenting and extensible with JavaScript.

It comes with builtin support for several Web 2.0 sites like several Google
services (Search, Gmail, Maps, Reader, etc.), Del.icio.us, Reddit, Last.fm and
YouTube.  For easier editing of form fields, it can spawn external editors.")
    (home-page "http://conkeror.org")
    ;; Conkeror is triple licensed.
    (license (list
              ;; MPL 1.1 -- this license is not GPL compatible
              license:gpl2
              license:lgpl2.1))))
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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 (test-pk-crypto)
  #:use-module (guix pk-crypto)
  #:use-module (guix utils)
  #:use-module (guix hash)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-11)
  #:use-module (srfi srfi-26)
  #:use-module (srfi srfi-64)
  #:use-module (rnrs bytevectors)
  #:use-module (rnrs io ports)
  #:use-module (ice-9 match))

;; Test the (guix pk-crypto) module.

(define %key-pair
  ;; RSA key pair that was generated with:
  ;;   (generate-key (string->canonical-sexp "(genkey (rsa (nbits 4:1024)))"))
  ;; which takes a bit of time.
  "(key-data
    (public-key
     (rsa
      (n #00C1F764069F54FFE93A126B02328903E984E4AE3AF6DF402B5B6B3907911B88C385F1BA76A002EC9DEA109A5228EF0E62EE31A06D1A5861CAB474F6C857AC66EB65A1905F25BBA1869579E73A3B7FED13AF5A1667326F88CDFC2FF24B03C14FD1384AA7E73CA89572880B606E3A974E15347963FC7B6378574936A47580DBCB45#)
      (e #010001#)))
    (private-key
     (rsa
      (n #00C1F764069F54FFE93A126B02328903E984E4AE3AF6DF402B5B6B3907911B88C385F1BA76A002EC9DEA109A5228EF0E62EE31A06D1A5861CAB474F6C857AC66EB65A1905F25BBA1869579E73A3B7FED13AF5A1667326F88CDFC2FF24B03C14FD1384AA7E73CA89572880B606E3A974E15347963FC7B6378574936A47580DBCB45#)
      (e #010001#)
      (d #58CAD84653D0046A8EC3F9AA82D9C829B145422109FC3F12DA01A694B92FA296E70D366FB166454D30E632CEE3A033B4C41781BA10325F69FCDC0250CA19C8EEB352FA085992494098DB133E682ED38A931701F0DED1A1E508F4341A4FB446A04F019427C7CB3C44F251EEA9D386100DA80F125E0FD5CE1B0DFEC6D21516EACD#)
      (p #00D47F185147EC39393CCDA4E7323FFC20FC8B8073E2A54DD63BA392A66975E4204CA48572496A9DFD7522436B852C07472A5AB25B7706F7C14E6F33FBC420FF3B#)
      (q #00E9AD22F158060BC9AE3601DA623AFC60FFF3058795802CA92371C00097335CF9A23D7782DE353C9DBA93D7BB99E6A24A411107605E722481C5C191F80D7EB77F#)
      (u #59B45B95AE01A7A7370FAFDB08FE73A4793CE37F228961B09B1B1E7DDAD9F8D3E28F5C5E8B4B067E6B8E0BBF3F690B42991A79E46108DDCDA2514323A66964DE#))))")

(define %ecc-key-pair
  ;; Ed25519 key pair generated with:
  ;;   (generate-key (string->canonical-sexp "(genkey (ecdsa (curve Ed25519) (flags rfc6979 transient)))"))
  "(key-data
      (public-key
        (ecc
          (curve Ed25519)
          (q #94869C1B9E69DB8DD910B7F7F4D6E56A63A964A59AE8F90F6703ACDDF6F50C81#)))
      (private-key
        (ecc
          (curve Ed25519)
          (q #94869C1B9E69DB8DD910B7F7F4D6E56A63A964A59AE8F90F6703ACDDF6F50C81#)
          (d #6EFB32D0B4EC6B3237B523539F1979379B82726AAA605EB2FBA6775B2B777B78#))))")

(test-begin "pk-crypto")

(test-assert "version"
  (gcrypt-version))

(let ((sexps '("(foo bar)"

               ;; In Libgcrypt 1.5.3 the following integer is rendered as
               ;; binary, whereas in 1.6.0 it's rendered as is (hexadecimal.)
               ;;"#C0FFEE#"

               "(genkey \n (rsa \n  (nbits \"1024\")\n  )\n )")))
  (test-equal "string->canonical-sexp->string"
    sexps
    (let ((sexps (map string->canonical-sexp sexps)))
      (and (every canonical-sexp? sexps)
           (map (compose string-trim-both canonical-sexp->string) sexps)))))

(gc)                                              ; stress test!

(let ((sexps `(("(foo bar)" foo -> "(foo bar)")
               ("(foo (bar (baz 3:123)))" baz -> "(baz \"123\")")
               ("(foo (bar 3:123))" baz -> #f))))
  (test-equal "find-sexp-token"
    (map (match-lambda
          ((_ _ '-> expected)
           expected))
         sexps)
    (map (match-lambda
          ((input token '-> _)
           (let ((sexp (find-sexp-token (string->canonical-sexp input) token)))
             (and sexp
                  (string-trim-both (canonical-sexp->string sexp))))))
         sexps)))

(gc)

(test-equal "canonical-sexp-length"
  '(0 1 2 4 0 0)
  (map (compose canonical-sexp-length string->canonical-sexp)
       '("()" "(a)" "(a b)" "(a #616263# b #C001#)" "a" "#123456#")))

(test-equal "canonical-sexp-list?"
  '(#t #f #t #f)
  (map (compose canonical-sexp-list? string->canonical-sexp)
       '("()" "\"abc\"" "(a b c)" "#123456#")))

(gc)

(test-equal "canonical-sexp-car + cdr"
  '("(b \n (c xyz)\n )")
  (let ((lst (string->canonical-sexp "(a (b (c xyz)))")))
    (map (lambda (sexp)
           (and sexp (string-trim-both (canonical-sexp->string sexp))))
         ;; Note: 'car' returns #f when the first element is an atom.
         (list (canonical-sexp-car (canonical-sexp-cdr lst))))))

(gc)

(test-equal "canonical-sexp-nth"
  '("(b pqr)" "(c \"456\")" "(d xyz)" #f #f)

  (let ((lst (string->canonical-sexp "(a (b 3:pqr) (c 3:456) (d 3:xyz))")))
    ;; XXX: In Libgcrypt 1.5.3, (canonical-sexp-nth lst 0) returns LST, whereas in
    ;; 1.6.0 it returns #f.
    (map (lambda (sexp)
           (and sexp (string-trim-both (canonical-sexp->string sexp))))
         (unfold (cut > <> 5)
                 (cut canonical-sexp-nth lst <>)
                 1+
                 1))))

(gc)

(test-equal "canonical-sexp-nth-data"
  `(Name Otto Meier #f ,(base16-string->bytevector "123456") #f)
  (let ((lst (string->canonical-sexp
              "(Name Otto Meier (address Burgplatz) #123456#)")))
    (unfold (cut > <> 5)
            (cut canonical-sexp-nth-data lst <>)
            1+
            0)))

(let ((bv (base16-string->bytevector
           "5eff0b55c9c5f5e87b4e34cd60a2d5654ca1eb78c7b3c67c3179fed1cff07b4c")))
  (test-equal "hash corrupt due to restrictive locale encoding"
    bv

    ;; In Guix up to 0.6 included this test would fail because at some point
    ;; the hash value would be cropped to ASCII.  In practice 'guix
    ;; authenticate' would produce invalid signatures that would fail
    ;; signature verification.  See <http://bugs.gnu.org/17312>.
    (let ((locale (setlocale LC_ALL)))
     (dynamic-wind
       (lambda ()
         (setlocale LC_ALL "C"))
       (lambda ()
         (hash-data->bytevector
          (string->canonical-sexp
           (canonical-sexp->string
            (bytevector->hash-data bv "sha256")))))
       (lambda ()
         (setlocale LC_ALL locale))))))

(gc)

;; XXX: The test below is typically too long as it needs to gather enough entropy.

;; (test-assert "generate-key"
;;   (let ((key (generate-key (string->canonical-sexp
;;                             "(genkey (rsa (nbits 3:128)))"))))
;;     (and (canonical-sexp? key)
;;          (find-sexp-token key 'key-data)
;;          (find-sexp-token key 'public-key)
;;          (find-sexp-token key 'private-key))))

(test-assert "bytevector->hash-data->bytevector"
  (let* ((bv   (sha256 (string->utf8 "Hello, world.")))
         (data (bytevector->hash-data bv "sha256")))
    (and (canonical-sexp? data)
         (let-values (((value algo) (hash-data->bytevector data)))
           (and (string=? algo "sha256")
                (bytevector=? value bv))))))

(test-equal "key-type"
  '(rsa ecc)
  (map (compose key-type
                (cut find-sexp-token <> 'public-key)
                string->canonical-sexp)
       (list %key-pair %ecc-key-pair)))

(test-assert "sign + verify"
  (let* ((pair   (string->canonical-sexp %key-pair))
         (secret (find-sexp-token pair 'private-key))
         (public (find-sexp-token pair 'public-key))
         (data   (bytevector->hash-data
                  (sha256 (string->utf8 "Hello, world."))
                  #:key-type (key-type public)))
         (sig    (sign data secret)))
    (and (verify sig data public)
         (not (verify sig
                      (bytevector->hash-data
                       (sha256 (string->utf8 "Hi!"))
                       #:key-type (key-type public))
                      public)))))

;; Ed25519 appeared in libgcrypt 1.6.0.
(test-skip (if (version>? (gcrypt-version) "1.6.0") 0 1))
(test-assert "sign + verify, Ed25519"
  (let* ((pair   (string->canonical-sexp %ecc-key-pair))
         (secret (find-sexp-token pair 'private-key))
         (public (find-sexp-token pair 'public-key))
         (data   (bytevector->hash-data
                  (sha256 (string->utf8 "Hello, world."))))
         (sig    (sign data secret)))
    (and (verify sig data public)
         (not (verify sig
                      (bytevector->hash-data
                       (sha256 (string->utf8 "Hi!")))
                      public)))))

(gc)

(test-equal "canonical-sexp->sexp"
  `((data
     (flags pkcs1)
     (hash sha256
           ,(base16-string->bytevector
             "2749f0ea9f26c6c7be746a9cff8fa4c2f2a02b000070dba78429e9a11f87c6eb")))

    (public-key
     (rsa
      (n ,(base16-string->bytevector
           (string-downcase
            "00C1F764069F54FFE93A126B02328903E984E4AE3AF6DF402B5B6B3907911B88C385F1BA76A002EC9DEA109A5228EF0E62EE31A06D1A5861CAB474F6C857AC66EB65A1905F25BBA1869579E73A3B7FED13AF5A1667326F88CDFC2FF24B03C14FD1384AA7E73CA89572880B606E3A974E15347963FC7B6378574936A47580DBCB45")))
      (e ,(base16-string->bytevector
           "010001")))))

  (list (canonical-sexp->sexp
         (string->canonical-sexp
          "(data
             (flags pkcs1)
             (hash \"sha256\"
                   #2749f0ea9f26c6c7be746a9cff8fa4c2f2a02b000070dba78429e9a11f87c6eb#))"))

        (canonical-sexp->sexp
         (find-sexp-token (string->canonical-sexp %key-pair)
                          'public-key))))


(let ((lst
       `((data
          (flags pkcs1)
          (hash sha256
                ,(base16-string->bytevector
                  "2749f0ea9f26c6c7be746a9cff8fa4c2f2a02b000070dba78429e9a11f87c6eb")))

         (public-key
          (rsa
           (n ,(base16-string->bytevector
                (string-downcase
                 "00C1F764069F54FFE93A126B02328903E984E4AE3AF6DF402B5B6B3907911B88C385F1BA76A002EC9DEA109A5228EF0E62EE31A06D1A5861CAB474F6C857AC66EB65A1905F25BBA1869579E73A3B7FED13AF5A1667326F88CDFC2FF24B03C14FD1384AA7E73CA89572880B606E3A974E15347963FC7B6378574936A47580DBCB45")))
           (e ,(base16-string->bytevector
                "010001"))))

         ,(base16-string->bytevector
           "2749f0ea9f26c6c7be746a9cff8fa4c2f2a02b000070dba78429e9a11f87c6eb"))))
  (test-equal "sexp->canonical-sexp->sexp"
    lst
    (map (compose canonical-sexp->sexp sexp->canonical-sexp)
         lst)))

(let ((sexp `(signature
              (public-key
               (rsa
                (n ,(make-bytevector 1024 1))
                (e ,(base16-string->bytevector "010001")))))))
  (test-equal "https://bugs.g10code.com/gnupg/issue1594"
    ;; The gcrypt bug above was primarily affecting our uses in
    ;; 'canonical-sexp->sexp', typically when applied to a signature sexp (in
    ;; 'guix authenticate -verify') with a "big" RSA key, such as 4096 bits.
    sexp
    (canonical-sexp->sexp (sexp->canonical-sexp sexp))))

(test-end)