Implement GPG signing of the outgoing notifications.

* src/config.c (mail_statistics_kw): New keyword gpg-sign.
(notify_event_kw): Likewise.
(wydawca_kw): New keyword gpg-homedir.
* src/gpg.c (wydawca_gpg_homedir): Rename to
create_gpg_homedir. Make static.
All uses updated.
* src/mail.c (admin_stat_sign_key): New global.
(mu_stream_data_read_cb)
(gpg_sign, sign_message): New functions.
(mail_send_message): Take 3rd argument: ID of
the PGP key to sign the message with.
All callers updated.
(do_notify): Rewrite.
* src/wydawca.c (wydawca_gpg_homedir): New variable.
* src/wydawca.h (struct notification): New member
sign_keys.
(admin_stat_sign_key): New extern.
(wydawca_gpg_homedir): New extern.

1 files changed, 4 insertions, 5 deletions

diff --git a/src/gpg.c b/src/gpg.c
index 71be53c..1389845 100644
--- a/src/gpg.c
+++ b/src/gpg.c
@@ -130,4 +130,4 @@ remove_homedir ()
 /* Create a temporary GPG home directory */
-int
-wydawca_gpg_homedir ()
+static int
+create_gpg_homedir ()
 {
@@ -224,3 +224,2 @@ verify_directive_signature (struct file_triplet *trp,
   gpgme_data_t key_data, directive_data, plain;
-  off_t size;
   gpgme_error_t ec;
@@ -229,3 +228,3 @@ verify_directive_signature (struct file_triplet *trp,
   
-  wydawca_gpg_homedir ();
+  create_gpg_homedir ();
   fail_if_err (gpgme_new (&ctx));
@@ -303,3 +302,3 @@ verify_detached_signature (struct file_triplet *trp,
 
-  wydawca_gpg_homedir ();
+  create_gpg_homedir ();
   argv[0] = info->file_name;