+
+/**
+ * copy a glib string into a talloc context, and free it.
+ */
+static char *
+g_string_talloc_strdup (void *ctx, char *g_string)
+{
+ char *new_str = talloc_strdup (ctx, g_string);
+
+ g_free (g_string);
+ return new_str;
+}
+
+const char *
+g_mime_certificate_get_valid_userid (GMimeCertificate *cert)
+{
+ /* output user id only if validity is FULL or ULTIMATE. */
+ const char *uid = g_mime_certificate_get_user_id (cert);
+
+ if (uid == NULL)
+ return uid;
+ GMimeValidity validity = g_mime_certificate_get_id_validity (cert);
+
+ if (validity == GMIME_VALIDITY_FULL || validity == GMIME_VALIDITY_ULTIMATE)
+ return uid;
+ return NULL;
+}
+
+const char *
+g_mime_certificate_get_valid_email (GMimeCertificate *cert)
+{
+ /* output e-mail address only if validity is FULL or ULTIMATE. */
+ const char *email = g_mime_certificate_get_email(cert);
+
+ if (email == NULL)
+ return email;
+ GMimeValidity validity = g_mime_certificate_get_id_validity (cert);
+
+ if (validity == GMIME_VALIDITY_FULL || validity == GMIME_VALIDITY_ULTIMATE)
+ return email;
+ return NULL;
+}
+
+const char *
+g_mime_certificate_get_fpr16 (GMimeCertificate *cert)
+{
+ const char *fpr = g_mime_certificate_get_fingerprint (cert);
+
+ if (! fpr || strlen (fpr) < 16)
+ return fpr;
+
+ return fpr + (strlen (fpr) - 16);
+}
+
+char *
+g_mime_message_get_address_string (GMimeMessage *message, GMimeAddressType type)
+{
+ InternetAddressList *list = g_mime_message_get_addresses (message, type);
+
+ return internet_address_list_to_string (list, NULL, 0);
+}
+
+char *
+g_mime_message_get_date_string (void *ctx, GMimeMessage *message)
+{
+ GDateTime *parsed_date = g_mime_message_get_date (message);
+
+ if (parsed_date) {
+ char *date = g_mime_utils_header_format_date (parsed_date);
+ return g_string_talloc_strdup (ctx, date);
+ } else {
+ return talloc_strdup (ctx, "Thu, 01 Jan 1970 00:00:00 +0000");
+ }
+}
+
+InternetAddressList *
+g_mime_message_get_reply_to_list (GMimeMessage *message)
+{
+ return g_mime_message_get_reply_to (message);
+}
+
+const char *
+g_mime_message_get_from_string (GMimeMessage *message)
+{
+ return g_mime_object_get_header (GMIME_OBJECT (message), "From");
+}
+
+char *
+g_mime_message_get_reply_to_string (void *ctx, GMimeMessage *message)
+{
+ InternetAddressList *list = g_mime_message_get_reply_to (message);
+
+ return g_string_talloc_strdup (ctx, internet_address_list_to_string (list, NULL, 0));
+}
+
+void
+g_mime_parser_set_scan_from (GMimeParser *parser, gboolean flag)
+{
+ g_mime_parser_set_format (parser, flag ? GMIME_FORMAT_MBOX : GMIME_FORMAT_MESSAGE);
+}
+
+/* In GMime 3.0, status GOOD and VALID both imply something about the
+ * validity of the UIDs attached to the signing key. This forces us to
+ * use following somewhat relaxed definition of a "good" signature to
+ * preserve current notmuch semantics.
+ */
+
+gboolean
+g_mime_signature_status_good (GMimeSignatureStatus status)
+{
+ return ((status & (GMIME_SIGNATURE_STATUS_RED | GMIME_SIGNATURE_STATUS_ERROR_MASK)) == 0);
+}
+
+gboolean
+g_mime_signature_status_bad (GMimeSignatureStatus status)
+{
+ return (status & GMIME_SIGNATURE_STATUS_RED);
+}
+
+gboolean
+g_mime_signature_status_error (GMimeSignatureStatus status)
+{
+ return (status & GMIME_SIGNATURE_STATUS_ERROR_MASK);
+}
+
+gint64
+g_mime_utils_header_decode_date_unix (const char *date)
+{
+ GDateTime *parsed_date = g_mime_utils_header_decode_date (date);
+ time_t ret;
+
+ if (parsed_date) {
+ ret = g_date_time_to_unix (parsed_date);
+ g_date_time_unref (parsed_date);
+ } else {
+ ret = 0;
+ }
+
+ return ret;
+}