gpg: New options --recipient-file and --hidden-recipient-file.

* g10/gpg.c (oRecipientFile, oHiddenRecipientFile): New.
(opts): Add options --recipient-file and --hidden-recipient-file.
(main): Implement them.  Also remove duplicate code from similar
options.
* g10/keydb.h (PK_LIST_FROM_FILE): New.
(PK_LIST_SHIFT): Bump up.
* g10/pkclist.c (expand_group): Take care of PK_LIST_FROM_FILE.
(find_and_check_key): Add and implement arg FROM_FILE.
(build_pk_list): Pass new value for new arg.
* g10/getkey.c (get_pubkey_fromfile): New.
* g10/gpgv.c (read_key_from_file): New stub.
* g10/test-stubs.c (read_key_from_file): New stub.
* g10/server.c (cmd_recipient): Add flag --file.
* g10/import.c (read_key_from_file): New.

* tests/openpgp/defs.scm (key-file1): New.
(key-file2): New.
* tests/openpgp/setup.scm: Add their private keys and import the
key-file1.
* tests/openpgp/encrypt.scm: Add new test.

--

Signed-off-by: Werner Koch <wk@gnupg.org>

tests/openpgp/defs.scm

@@ -35,6 +35,9 @@
 ;; first and then search for the encryption subkey.)
 (define dsa-usrname2 "0xCB879DE9")
 
+(define key-file1 "samplekeys/rsa-rsa-sample-1.asc")
+(define key-file2 "samplekeys/ed25519-cv25519-sample-1.asc")
+
 (define plain-files '("plain-1" "plain-2" "plain-3"))
 (define data-files '("data-500" "data-9000" "data-32000" "data-80000"))
 (define exp-files '())

tests/openpgp/encrypt.scm

@@ -43,3 +43,18 @@
        (tr:assert-identity source)))
     (append plain-files data-files)))
  all-cipher-algos)
+
+
+;; We encrypt to two keys and we have also put the first key into our
+;; pubring, so that decryption will work.
+(for-each-p
+ "Checking encryption using a key from file"
+ (lambda (source)
+   (tr:do
+    (tr:open source)
+    (tr:gpg "" `(--yes -v --no-keyring --encrypt
+                 --recipient-file ,(in-srcdir key-file1)
+                 --hidden-recipient-file ,(in-srcdir key-file2)))
+    (tr:gpg "" '(--yes))
+    (tr:assert-identity source)))
+ plain-files)

tests/openpgp/setup.scm

@@ -91,12 +91,17 @@
     "1DF48228FEFF3EC2481B106E0ACA8C465C662CC5"
     "A2832820DC9F40751BDCD375BB0945BA33EC6B4C"
     "ADE710D74409777B7729A7653373D820F67892E0"
-    "CEFC51AF91F68A2904FBFF62C4F075A4785B803F"))
+    "CEFC51AF91F68A2904FBFF62C4F075A4785B803F"
+    "1E28F20E41B54C2D1234D896096495FF57E08D18"
+    "EB33B687EB8581AB64D04852A54453E85F3DF62D"
+    "C6A6390E9388CDBAD71EAEA698233FE5E04F001E"
+    "D69102E0F5AC6B6DB8E4D16DA8E18CF46D88CAE3"))
 
 (info "Importing public demo and test keys")
 (call-check `(,@GPG --yes --import
 		    ,(in-srcdir "pubdemo.asc")
-		    ,(in-srcdir "pubring.asc")))
+		    ,(in-srcdir "pubring.asc")
+                    ,(in-srcdir key-file1)))
 ;; (letfd ((source (open (in-srcdir "pubring.pkr.asc") O_RDONLY)))
 ;;        ((gpg-pipe '(--dearmor) '(--yes --import) STDERR_FILENO)
 ;; 	source CLOSED_FD))