diff options
Diffstat (limited to 'src/mail.c')
-rw-r--r-- | src/mail.c | 244 |
1 files changed, 222 insertions, 22 deletions
@@ -14,22 +14,24 @@ You should have received a copy of the GNU General Public License along with wydawca. If not, see <http://www.gnu.org/licenses/>. */ #include "wydawca.h" #include <mail.h> #include <hash.h> +#include <gpgme.h> int mailer_opened; mu_mailer_t mailer; mu_address_t admin_address; mu_address_t from_address; unsigned long mail_admin_mask; unsigned long owner_notification_flags; char *user_message_template[MAX_EVENT]; char *admin_stat_message; +char *admin_stat_sign_key; void mail_init () { if (!mailer) { @@ -41,14 +43,209 @@ mail_init () logmsg (LOG_ERR, _("cannot create default mailer `%s': %s"), url, mu_strerror (rc)); } } } +struct mu_stream_handle +{ + mu_stream_t str; + mu_off_t off; +}; + +static ssize_t +mu_stream_data_read_cb (void *handle, void *buffer, size_t size) +{ + struct mu_stream_handle *mhp = handle; + size_t nread; + int rc; + + rc = mu_stream_read (mhp->str, buffer, size, mhp->off, &nread); + if (rc) + { + logmsg (LOG_ERR, "mu_stream_read: %s", mu_strerror (rc)); + errno = EIO; + return -1; + } + + mhp->off += nread; + return nread; +} + +static int +gpg_sign (gpgme_data_t *output, gpgme_data_t input, const char *sign_keys) +{ + gpgme_ctx_t ctx; + gpgme_error_t err = 0; + gpgme_key_t key; + + err = gpgme_new (&ctx); + if (err) + { + logmsg (LOG_ERR, _("GPGME: cannot create context: %s"), + gpgme_strerror (err)); + return 1; + } + + err = gpgme_op_keylist_start (ctx, sign_keys, 0); + if (!err) + { + while ((err = gpgme_op_keylist_next (ctx, &key)) == 0) + { + err = gpgme_signers_add (ctx, key); + gpgme_key_release (key); + } + } + + if (err && gpg_err_code (err) != GPG_ERR_EOF) + { + logmsg (LOG_ERR, _("GPGME: cannot list keys: %s"), + gpgme_strerror (err)); + gpgme_release (ctx); + return 1; + } + + err = gpgme_data_new (output); + if (err) + { + logmsg (LOG_ERR, _("%s: GPGME error: %s"), + "gpgme_data_new", + gpgme_strerror (err)); + gpgme_release (ctx); + return 1; + } + + /* FIXME: Passphrase */ + gpgme_set_textmode (ctx, 1); + gpgme_set_armor (ctx, 1); + + err = gpgme_op_sign (ctx, input, *output, GPGME_SIG_MODE_CLEAR); + if (err) + logmsg (LOG_ERR, _("%s: GPGME error: %s"), + "gpgme_op_sign", + gpgme_strerror (err)); +#if 0 + /* FIXME: */ + else if (debug_level > 1) + gpgme_debug_info (ctx); +#endif + + gpgme_release (ctx); + return err != 0; +} + +static int +sign_message (mu_message_t *pmsg, const char *key) +{ + mu_message_t msg = *pmsg; + mu_message_t newmsg; + mu_body_t body; + mu_header_t hdr; + struct mu_stream_handle mhn; + mu_stream_t istr, ostr; + int rc; + struct gpgme_data_cbs cbs; + gpgme_data_t input, output; + gpgme_error_t err; + char *buf = NULL; + size_t size = 0; + size_t nread; + + if (debug_level) + logmsg (LOG_DEBUG, _("signing message as %s"), key); + + if (wydawca_gpg_homedir) + { + if (debug_level > 1) + logmsg (LOG_DEBUG, _("setting GNUPG home directory: %s"), + wydawca_gpg_homedir); + setenv ("GNUPGHOME", wydawca_gpg_homedir, 1); + } + + if ((rc = mu_message_get_body (msg, &body))) + { + logmsg (LOG_ERR, "mu_message_get_body: %s", mu_strerror (rc)); + return 1; + } + + if ((rc = mu_body_get_stream (body, &mhn.str))) + { + logmsg (LOG_ERR, "mu_message_get_stream: %s", mu_strerror (rc)); + return 1; + } + + mu_stream_seek (mhn.str, 0, SEEK_SET); + mhn.off = 0; + + memset (&cbs, 0, sizeof (cbs)); + cbs.read = mu_stream_data_read_cb; + + err = gpgme_data_new_from_cbs (&input, &cbs, &mhn); + if (err) + { + logmsg (LOG_ERR, "gpgme_data_new_from_cbs: %s", + gpgme_strerror (rc)); + return 1; + } + + rc = gpg_sign (&output, input, key); + + if (gpgme_data_seek (output, 0, SEEK_SET) == -1) + { + logmsg (LOG_ERR, "gpgme_data_seek: %s", strerror (errno)); + return 1; + } + + mu_message_create (&newmsg, NULL); + mu_message_get_stream (newmsg, &ostr); + + /* Copy headers */ + mu_message_get_header (msg, &hdr); + mu_header_get_stream (hdr, &istr); + mu_stream_seek (istr, 0, SEEK_SET); + while ((rc = mu_stream_sequential_getline (istr, &buf, &size, &nread)) == 0 + && nread) + { + rc = mu_stream_sequential_write (ostr, buf, nread); + if (rc) + { + logmsg (LOG_ERR, "mu_stream_sequential_write: %s", + mu_strerror (rc)); + break; + } + } + + if (rc == 0) + { + while ((nread = gpgme_data_read (output, buf, size)) > 0) + { + rc = mu_stream_sequential_write (ostr, buf, nread); + if (rc) + { + logmsg (LOG_ERR, "mu_stream_sequential_write: %s", + mu_strerror (rc)); + break; + } + } + + if (rc == 0) + { + mu_message_destroy (&msg, mu_message_get_owner (msg)); + *pmsg = newmsg; + } + } + + gpgme_data_release (output); + free (buf); + + return rc; +} + void -mail_send_message (mu_address_t rcpt, const char *text) +mail_send_message (mu_address_t rcpt, const char *text, + const char *signer_key) { int rc; mu_message_t msg; mu_stream_t stream = NULL; mu_header_t hdr; int mailer_flags = 0; @@ -88,13 +285,13 @@ mail_send_message (mu_address_t rcpt, const char *text) mu_debug_t debug; mu_mailer_get_debug (mailer, &debug); mu_debug_set_level (debug, MU_DEBUG_TRACE | MU_DEBUG_PROT); if (debug_level > 2) mailer_flags = MAILER_FLAG_DEBUG_DATA; } - + if (!mailer_opened) { if ((rc = mu_mailer_open (mailer, mailer_flags))) { mu_url_t url = NULL; mu_mailer_get_url (mailer, &url); @@ -103,16 +300,22 @@ mail_send_message (mu_address_t rcpt, const char *text) mu_strerror (rc)); return; } mailer_opened = 1; } - rc = mu_mailer_send_message (mailer, msg, from_address, rcpt); - if (rc) - logmsg (LOG_CRIT, _("cannot send message: %s"), mu_strerror (rc)); - + if (signer_key) + sign_message (&msg, signer_key); + + if (!dry_run_mode) + { + rc = mu_mailer_send_message (mailer, msg, from_address, rcpt); + if (rc) + logmsg (LOG_CRIT, _("cannot send message: %s"), mu_strerror (rc)); + } + mu_message_destroy (&msg, mu_message_get_owner (msg)); } void mail_finish () { @@ -241,15 +444,12 @@ mail_stats () buf = xmalloc (size + 1); mu_address_to_string (admin_address, buf, size + 1, NULL); logmsg (LOG_DEBUG, _("sending stats to %s"), buf); free (buf); } - if (dry_run_mode) - return; - tc = timer_get_count () * 3; exp = make_stat_expansion (tc + 1); time (&t); exp[0].kw = "date"; exp[0].value = exp[0].storage = xstrdup (ctime (&t)); exp[0].value [strlen (exp[0].value) - 1] = 0; @@ -261,13 +461,13 @@ mail_stats () logmsg (LOG_ERR, _("undefined message reference: %s"), admin_stat_message); return; } text = meta_expand_string (tmpl, exp, NULL, NULL, NULL); - mail_send_message (admin_address, text); + mail_send_message (admin_address, text, admin_stat_sign_key); free (text); meta_free (exp); timer_free_meta (exp + 1, tc); free (exp); } @@ -363,12 +563,14 @@ get_recipient (struct access_method *method, struct file_triplet *trp, void do_notify (struct file_triplet *trp, enum notification_event ev, struct notification *ntf) { mu_address_t rcpt = NULL; const char *errp; + const char *msg; + switch (ntf->tgt) { case notify_read: rcpt = NULL; break; @@ -405,27 +607,25 @@ do_notify (struct file_triplet *trp, enum notification_event ev, mu_address_to_string (rcpt, buf, size + 1, NULL); logmsg (LOG_DEBUG, _("notifying %s (project %s) about %s"), buf, trp->project, notification_event_str (ev)); free (buf); } else - logmsg (LOG_DEBUG, _("notifying message recipients (project %s) about %s"), + logmsg (LOG_DEBUG, + _("notifying message recipients (project %s) about %s"), trp->project, notification_event_str (ev)); } - - if (!dry_run_mode) + + msg = resolve_message_template (ntf->msg); + if (!msg) + logmsg (LOG_ERR, _("undefined message reference: %s"), ntf->msg); + else { - const char *msg = resolve_message_template (ntf->msg); - if (!msg) - logmsg (LOG_ERR, _("undefined message reference: %s"), ntf->msg); - else - { - char *text = triplet_expand_param (msg, trp); - mail_send_message (rcpt, text); - free (text); - } + char *text = triplet_expand_param (msg, trp); + mail_send_message (rcpt, text, ntf->sign_keys); + free (text); } mu_address_destroy (&rcpt); } void |