tests/openpgp: Port the remaining tests to Scheme.

* tests/openpgp/Makefile.am (TESTS): Add new tests.
* tests/openpgp/defs.scm (gpg-with-colons): New function.
(get-config): Use new function.
* tests/openpgp/export.scm: New file.
* tests/openpgp/tofu.scm: Likewise.

Signed-off-by: Justus Winter <justus@g10code.com>

tests/openpgp/export.scm

@@ -0,0 +1,99 @@
+#!/usr/bin/env gpgscm
+
+;; Copyright (C) 2016 g10 Code GmbH
+;;
+;; This file is part of GnuPG.
+;;
+;; GnuPG 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.
+;;
+;; GnuPG 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 this program; if not, see <http://www.gnu.org/licenses/>.
+
+(load (with-path "defs.scm"))
+
+(define (check-for predicate lines message)
+  (unless (any predicate lines)
+	  (error message)))
+
+(define (check-exported-key dump keyid)
+  (check-for (lambda (l)
+	       (and (string-prefix? l "	keyid: ")
+		    (string-suffix? l keyid))) dump
+		    "Keyid not found")
+  (check-for (lambda (l) (string-prefix? l ":user ID packet:")) dump
+	     "User ID packet not found")
+  (check-for (lambda (l)
+	       (and (string-prefix? l ":signature packet:")
+		    (string-contains? l "keyid")
+		    (string-suffix? l keyid))) dump
+		    "Signature packet not found"))
+
+(define (check-exported-public-key packet-dump keyid)
+  (let ((dump (string-split packet-dump #\newline)))
+    (check-for (lambda (l) (string-prefix? l ":public key packet:")) dump
+	       "Public key packet not found")
+    (check-exported-key dump keyid)))
+
+(define (check-exported-private-key packet-dump keyid)
+  (let ((dump (string-split packet-dump #\newline)))
+    (check-for (lambda (l) (string-prefix? l ":secret key packet:")) dump
+	       "Secret key packet not found")
+    (check-exported-key dump keyid)))
+
+(lettmp
+ ;; Prepare two temporary files for communication with the fake
+ ;; pinentry program.
+ (logfile ppfile)
+
+ (define (prepare-passphrases . passphrases)
+   (call-with-output-file ppfile
+     (lambda (port)
+       (for-each (lambda (passphrase)
+		   (display passphrase port)
+		   (display #\newline port)) passphrases))))
+
+ (define CONFIRM "fake-entry being started to CONFIRM the weak phrase")
+
+ (define (assert-passphrases-consumed)
+   (call-with-input-file ppfile
+     (lambda (port)
+       (unless
+	(eof-object? (peek-char port))
+	(error (string-append
+		"Expected all passphrases to be consumed, but found: "
+		(read-all port)))))))
+
+ (setenv "PINENTRY_USER_DATA"
+	 (string-append "--logfile=" logfile " --passphrasefile=" ppfile) #t)
+
+ (for-each-p
+  "Checking key export"
+  (lambda (keyid)
+    (tr:do
+     (tr:pipe-do
+      (pipe:gpg `(--export ,keyid))
+      (pipe:gpg '(--list-packets)))
+     (tr:call-with-content check-exported-public-key keyid))
+
+    (if (string=? "D74C5F22" keyid)
+	;; Key D74C5F22 is protected by a passphrase.  Prepare this
+	;; one.  Currently, GnuPG does not ask for an export passphrase
+	;; in this case.
+	(prepare-passphrases usrpass1))
+
+    (tr:do
+     (tr:pipe-do
+      (pipe:gpg `(--export-secret-keys ,keyid))
+      (pipe:gpg '(--list-packets)))
+     (tr:call-with-content check-exported-private-key keyid))
+
+    (assert-passphrases-consumed))
+  '("D74C5F22" "C40FDECF" "ECABF51D")))