static int tls_check_certificate (CONNECTION* conn)
{
tlssockdata *data = conn->sockdata;
gnutls_session state = data->state;
const gnutls_datum *cert_list;
unsigned int cert_list_size = 0;
gnutls_certificate_status certstat;
int certerr, i, preauthrc, savedcert, rc = 0;
int rcpeer = -1; /* the result of tls_check_preauth() on the peer's EE cert */
if (gnutls_auth_get_type (state) != GNUTLS_CRD_CERTIFICATE)
{
mutt_error (_("Unable to get certificate from peer"));
mutt_sleep (2);
return 0;
}
certstat = tls_verify_peers (state);
cert_list = gnutls_certificate_get_peers (state, &cert_list_size);
if (!cert_list)
{
mutt_error (_("Unable to get certificate from peer"));
mutt_sleep (2);
return 0;
}
/* tls_verify_peers doesn't check hostname or expiration, so walk
* from most specific to least checking these. If we see a saved certificate,
* its status short-circuits the remaining checks. */
preauthrc = 0;
for (i = 0; i < cert_list_size; i++) {
rc = tls_check_preauth(&cert_list[i], certstat, conn->account.host, i,
&certerr, &savedcert);
preauthrc += rc;
if (i == 0)
{
/* This is the peer's end-entity X.509 certificate. Stash the result
* to check later in this function.
*/
rcpeer = rc;
}
if (savedcert)
{
if (!preauthrc)
return 1;
else
break;
}
}
/* then check interactively, starting from chain root */
for (i = cert_list_size - 1; i >= 0; i--)
{
rc = tls_check_one_certificate (&cert_list[i], certstat, conn->account.host,
i, cert_list_size);
/* add signers to trust set, then reverify */
if (i && rc) {
rc = gnutls_certificate_set_x509_trust_mem (data->xcred, &cert_list[i],
GNUTLS_X509_FMT_DER);
if (rc != 1)
dprint (1, (debugfile, "error trusting certificate %d: %d\n", i, rc));
certstat = tls_verify_peers (state);
/* If the cert chain now verifies, and the peer's cert was otherwise
* valid (rcpeer==0), we are done.
*/
if (!certstat && !rcpeer)
return 1;
}
}
return rc;
}
static int tls_check_certificate (CONNECTION* conn)
{
tlssockdata *data = conn->sockdata;
gnutls_session state = data->state;
const gnutls_datum *cert_list;
unsigned int cert_list_size = 0;
gnutls_certificate_status certstat;
int certerr, i, rc;
if (gnutls_auth_get_type (state) != GNUTLS_CRD_CERTIFICATE)
{
mutt_error (_("Unable to get certificate from peer"));
mutt_sleep (2);
return 0;
}
certstat = gnutls_certificate_verify_peers (state);
if (certstat == GNUTLS_E_NO_CERTIFICATE_FOUND)
{
mutt_error (_("Unable to get certificate from peer"));
mutt_sleep (2);
return 0;
}
if (certstat < 0)
{
mutt_error (_("Certificate verification error (%s)"),
gnutls_strerror (certstat));
mutt_sleep (2);
return 0;
}
/* We only support X.509 certificates (not OpenPGP) at the moment */
if (gnutls_certificate_type_get (state) != GNUTLS_CRT_X509)
{
mutt_error (_("Certificate is not X.509"));
mutt_sleep (2);
return 0;
}
cert_list = gnutls_certificate_get_peers (state, &cert_list_size);
if (!cert_list)
{
mutt_error (_("Unable to get certificate from peer"));
mutt_sleep (2);
return 0;
}
/* first check chain noninteractively */
for (i = 0; i < cert_list_size; i++)
{
rc = tls_check_preauth(&cert_list[i], certstat, conn->account.host, !i,
&certerr);
if (!rc)
return 1;
}
/* then check interactively, starting from chain root */
for (i = cert_list_size - 1; i >= 0; i--)
{
rc = tls_check_one_certificate (&cert_list[i], certstat, conn->account.host,
i, cert_list_size);
if (rc)
return rc;
}
return 0;
}
static int tls_check_one_certificate (const gnutls_datum_t *certdata,
gnutls_certificate_status certstat,
const char* hostname, int idx, int len)
{
int certerr, savedcert;
gnutls_x509_crt cert;
char buf[SHORT_STRING];
char fpbuf[SHORT_STRING];
size_t buflen;
char dn_common_name[SHORT_STRING];
char dn_email[SHORT_STRING];
char dn_organization[SHORT_STRING];
char dn_organizational_unit[SHORT_STRING];
char dn_locality[SHORT_STRING];
char dn_province[SHORT_STRING];
char dn_country[SHORT_STRING];
time_t t;
char datestr[30];
MUTTMENU *menu;
char helpstr[LONG_STRING];
char title[STRING];
FILE *fp;
gnutls_datum pemdata;
int i, row, done, ret;
if (!tls_check_preauth (certdata, certstat, hostname, idx, &certerr,
&savedcert))
return 1;
/* skip signers if insecure algorithm was used */
if (idx && (certerr & CERTERR_INSECUREALG))
{
if (idx == 1)
{
mutt_error (_("Warning: Server certificate was signed using an insecure algorithm"));
mutt_sleep (2);
}
return 0;
}
/* interactive check from user */
if (gnutls_x509_crt_init (&cert) < 0)
{
mutt_error (_("Error initialising gnutls certificate data"));
mutt_sleep (2);
return 0;
}
if (gnutls_x509_crt_import (cert, certdata, GNUTLS_X509_FMT_DER) < 0)
{
mutt_error (_("Error processing certificate data"));
mutt_sleep (2);
gnutls_x509_crt_deinit (cert);
return -1;
}
menu = mutt_new_menu (-1);
menu->max = 25;
menu->dialog = (char **) safe_calloc (1, menu->max * sizeof (char *));
for (i = 0; i < menu->max; i++)
menu->dialog[i] = (char *) safe_calloc (1, SHORT_STRING * sizeof (char));
row = 0;
strfcpy (menu->dialog[row], _("This certificate belongs to:"), SHORT_STRING);
row++;
buflen = sizeof (dn_common_name);
if (gnutls_x509_crt_get_dn_by_oid (cert, GNUTLS_OID_X520_COMMON_NAME, 0, 0,
dn_common_name, &buflen) != 0)
dn_common_name[0] = '\0';
buflen = sizeof (dn_email);
if (gnutls_x509_crt_get_dn_by_oid (cert, GNUTLS_OID_PKCS9_EMAIL, 0, 0,
dn_email, &buflen) != 0)
dn_email[0] = '\0';
buflen = sizeof (dn_organization);
if (gnutls_x509_crt_get_dn_by_oid (cert, GNUTLS_OID_X520_ORGANIZATION_NAME, 0, 0,
dn_organization, &buflen) != 0)
dn_organization[0] = '\0';
buflen = sizeof (dn_organizational_unit);
if (gnutls_x509_crt_get_dn_by_oid (cert, GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME, 0, 0,
dn_organizational_unit, &buflen) != 0)
dn_organizational_unit[0] = '\0';
buflen = sizeof (dn_locality);
if (gnutls_x509_crt_get_dn_by_oid (cert, GNUTLS_OID_X520_LOCALITY_NAME, 0, 0,
dn_locality, &buflen) != 0)
dn_locality[0] = '\0';
buflen = sizeof (dn_province);
if (gnutls_x509_crt_get_dn_by_oid (cert, GNUTLS_OID_X520_STATE_OR_PROVINCE_NAME, 0, 0,
dn_province, &buflen) != 0)
dn_province[0] = '\0';
buflen = sizeof (dn_country);
if (gnutls_x509_crt_get_dn_by_oid (cert, GNUTLS_OID_X520_COUNTRY_NAME, 0, 0,
dn_country, &buflen) != 0)
dn_country[0] = '\0';
snprintf (menu->dialog[row++], SHORT_STRING, " %s %s", dn_common_name, dn_email);
snprintf (menu->dialog[row++], SHORT_STRING, " %s", dn_organization);
snprintf (menu->dialog[row++], SHORT_STRING, " %s", dn_organizational_unit);
snprintf (menu->dialog[row++], SHORT_STRING, " %s %s %s",
dn_locality, dn_province, dn_country);
row++;
strfcpy (menu->dialog[row], _("This certificate was issued by:"), SHORT_STRING);
row++;
buflen = sizeof (dn_common_name);
if (gnutls_x509_crt_get_issuer_dn_by_oid (cert, GNUTLS_OID_X520_COMMON_NAME, 0, 0,
dn_common_name, &buflen) != 0)
dn_common_name[0] = '\0';
buflen = sizeof (dn_email);
if (gnutls_x509_crt_get_issuer_dn_by_oid (cert, GNUTLS_OID_PKCS9_EMAIL, 0, 0,
dn_email, &buflen) != 0)
dn_email[0] = '\0';
buflen = sizeof (dn_organization);
if (gnutls_x509_crt_get_issuer_dn_by_oid (cert, GNUTLS_OID_X520_ORGANIZATION_NAME, 0, 0,
dn_organization, &buflen) != 0)
dn_organization[0] = '\0';
buflen = sizeof (dn_organizational_unit);
if (gnutls_x509_crt_get_issuer_dn_by_oid (cert, GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME, 0, 0,
dn_organizational_unit, &buflen) != 0)
dn_organizational_unit[0] = '\0';
buflen = sizeof (dn_locality);
if (gnutls_x509_crt_get_issuer_dn_by_oid (cert, GNUTLS_OID_X520_LOCALITY_NAME, 0, 0,
dn_locality, &buflen) != 0)
dn_locality[0] = '\0';
buflen = sizeof (dn_province);
if (gnutls_x509_crt_get_issuer_dn_by_oid (cert, GNUTLS_OID_X520_STATE_OR_PROVINCE_NAME, 0, 0,
dn_province, &buflen) != 0)
dn_province[0] = '\0';
buflen = sizeof (dn_country);
if (gnutls_x509_crt_get_issuer_dn_by_oid (cert, GNUTLS_OID_X520_COUNTRY_NAME, 0, 0,
dn_country, &buflen) != 0)
dn_country[0] = '\0';
snprintf (menu->dialog[row++], SHORT_STRING, " %s %s", dn_common_name, dn_email);
snprintf (menu->dialog[row++], SHORT_STRING, " %s", dn_organization);
snprintf (menu->dialog[row++], SHORT_STRING, " %s", dn_organizational_unit);
snprintf (menu->dialog[row++], SHORT_STRING, " %s %s %s",
dn_locality, dn_province, dn_country);
row++;
snprintf (menu->dialog[row++], SHORT_STRING, _("This certificate is valid"));
t = gnutls_x509_crt_get_activation_time (cert);
snprintf (menu->dialog[row++], SHORT_STRING, _(" from %s"),
tls_make_date (t, datestr, 30));
t = gnutls_x509_crt_get_expiration_time (cert);
snprintf (menu->dialog[row++], SHORT_STRING, _(" to %s"),
tls_make_date (t, datestr, 30));
fpbuf[0] = '\0';
tls_fingerprint (GNUTLS_DIG_SHA, fpbuf, sizeof (fpbuf), certdata);
snprintf (menu->dialog[row++], SHORT_STRING, _("SHA1 Fingerprint: %s"), fpbuf);
fpbuf[0] = '\0';
tls_fingerprint (GNUTLS_DIG_MD5, fpbuf, sizeof (fpbuf), certdata);
snprintf (menu->dialog[row++], SHORT_STRING, _("MD5 Fingerprint: %s"), fpbuf);
if (certerr & CERTERR_NOTYETVALID)
{
row++;
strfcpy (menu->dialog[row], _("WARNING: Server certificate is not yet valid"), SHORT_STRING);
}
if (certerr & CERTERR_EXPIRED)
{
row++;
strfcpy (menu->dialog[row], _("WARNING: Server certificate has expired"), SHORT_STRING);
}
if (certerr & CERTERR_REVOKED)
{
row++;
strfcpy (menu->dialog[row], _("WARNING: Server certificate has been revoked"), SHORT_STRING);
}
if (certerr & CERTERR_HOSTNAME)
{
row++;
strfcpy (menu->dialog[row], _("WARNING: Server hostname does not match certificate"), SHORT_STRING);
}
if (certerr & CERTERR_SIGNERNOTCA)
{
row++;
strfcpy (menu->dialog[row], _("WARNING: Signer of server certificate is not a CA"), SHORT_STRING);
}
snprintf (title, sizeof (title),
_("SSL Certificate check (certificate %d of %d in chain)"),
len - idx, len);
menu->title = title;
/* certificates with bad dates, or that are revoked, must be
accepted manually each and every time */
if (SslCertFile && !savedcert
&& !(certerr & (CERTERR_EXPIRED | CERTERR_NOTYETVALID
| CERTERR_REVOKED)))
{
menu->prompt = _("(r)eject, accept (o)nce, (a)ccept always");
menu->keys = _("roa");
}
else
{
menu->prompt = _("(r)eject, accept (o)nce");
menu->keys = _("ro");
}
helpstr[0] = '\0';
mutt_make_help (buf, sizeof (buf), _("Exit "), MENU_GENERIC, OP_EXIT);
safe_strcat (helpstr, sizeof (helpstr), buf);
mutt_make_help (buf, sizeof (buf), _("Help"), MENU_GENERIC, OP_HELP);
safe_strcat (helpstr, sizeof (helpstr), buf);
menu->help = helpstr;
done = 0;
set_option (OPTUNBUFFEREDINPUT);
while (!done)
{
switch (mutt_menuLoop (menu))
{
case -1: /* abort */
case OP_MAX + 1: /* reject */
case OP_EXIT:
done = 1;
break;
case OP_MAX + 3: /* accept always */
done = 0;
if ((fp = fopen (SslCertFile, "a")))
{
/* save hostname if necessary */
if (certerr & CERTERR_HOSTNAME)
{
fprintf(fp, "#H %s %s\n", hostname, fpbuf);
done = 1;
}
if (certerr & CERTERR_NOTTRUSTED)
{
done = 0;
ret = gnutls_pem_base64_encode_alloc ("CERTIFICATE", certdata,
&pemdata);
if (ret == 0)
{
if (fwrite (pemdata.data, pemdata.size, 1, fp) == 1)
{
done = 1;
}
gnutls_free (pemdata.data);
}
}
safe_fclose (&fp);
}
if (!done)
{
mutt_error (_("Warning: Couldn't save certificate"));
mutt_sleep (2);
}
else
{
mutt_message (_("Certificate saved"));
mutt_sleep (0);
}
/* fall through */
case OP_MAX + 2: /* accept once */
done = 2;
break;
}
}
unset_option (OPTUNBUFFEREDINPUT);
mutt_menuDestroy (&menu);
gnutls_x509_crt_deinit (cert);
return (done == 2);
}
/**
* tls_check_one_certificate - Check a GnuTLS certificate
* @param certdata List of GnuTLS certificates
* @param certstat GnuTLS certificate status
* @param hostname Hostname
* @param idx Index into certificate list
* @param len Length of certificate list
* @retval 0 Failure
* @retval >0 Success
*/
static int tls_check_one_certificate(const gnutls_datum_t *certdata,
gnutls_certificate_status_t certstat,
const char *hostname, int idx, size_t len)
{
int certerr, savedcert;
gnutls_x509_crt_t cert;
char buf[128];
char fpbuf[128];
size_t buflen;
char dn_common_name[128];
char dn_email[128];
char dn_organization[128];
char dn_organizational_unit[128];
char dn_locality[128];
char dn_province[128];
char dn_country[128];
time_t t;
char datestr[30];
struct Menu *menu = NULL;
char helpstr[1024];
char title[256];
FILE *fp = NULL;
gnutls_datum_t pemdata;
int row, done, ret;
if (tls_check_preauth(certdata, certstat, hostname, idx, &certerr, &savedcert) == 0)
return 1;
/* interactive check from user */
if (gnutls_x509_crt_init(&cert) < 0)
{
mutt_error(_("Error initialising gnutls certificate data"));
return 0;
}
if (gnutls_x509_crt_import(cert, certdata, GNUTLS_X509_FMT_DER) < 0)
{
mutt_error(_("Error processing certificate data"));
gnutls_x509_crt_deinit(cert);
return 0;
}
menu = mutt_menu_new(MENU_GENERIC);
menu->max = 27;
menu->dialog = mutt_mem_calloc(1, menu->max * sizeof(char *));
for (int i = 0; i < menu->max; i++)
menu->dialog[i] = mutt_mem_calloc(1, dialog_row_len * sizeof(char));
mutt_menu_push_current(menu);
row = 0;
mutt_str_strfcpy(menu->dialog[row], _("This certificate belongs to:"), dialog_row_len);
row++;
buflen = sizeof(dn_common_name);
if (gnutls_x509_crt_get_dn_by_oid(cert, GNUTLS_OID_X520_COMMON_NAME, 0, 0,
dn_common_name, &buflen) != 0)
{
dn_common_name[0] = '\0';
}
buflen = sizeof(dn_email);
if (gnutls_x509_crt_get_dn_by_oid(cert, GNUTLS_OID_PKCS9_EMAIL, 0, 0, dn_email, &buflen) != 0)
dn_email[0] = '\0';
buflen = sizeof(dn_organization);
if (gnutls_x509_crt_get_dn_by_oid(cert, GNUTLS_OID_X520_ORGANIZATION_NAME, 0,
0, dn_organization, &buflen) != 0)
{
dn_organization[0] = '\0';
}
buflen = sizeof(dn_organizational_unit);
if (gnutls_x509_crt_get_dn_by_oid(cert, GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME,
0, 0, dn_organizational_unit, &buflen) != 0)
{
dn_organizational_unit[0] = '\0';
}
buflen = sizeof(dn_locality);
if (gnutls_x509_crt_get_dn_by_oid(cert, GNUTLS_OID_X520_LOCALITY_NAME, 0, 0,
dn_locality, &buflen) != 0)
{
dn_locality[0] = '\0';
}
buflen = sizeof(dn_province);
if (gnutls_x509_crt_get_dn_by_oid(cert, GNUTLS_OID_X520_STATE_OR_PROVINCE_NAME,
0, 0, dn_province, &buflen) != 0)
{
dn_province[0] = '\0';
}
buflen = sizeof(dn_country);
if (gnutls_x509_crt_get_dn_by_oid(cert, GNUTLS_OID_X520_COUNTRY_NAME, 0, 0,
dn_country, &buflen) != 0)
{
dn_country[0] = '\0';
}
snprintf(menu->dialog[row++], dialog_row_len, " %s %s", dn_common_name, dn_email);
snprintf(menu->dialog[row++], dialog_row_len, " %s", dn_organization);
snprintf(menu->dialog[row++], dialog_row_len, " %s", dn_organizational_unit);
snprintf(menu->dialog[row++], dialog_row_len, " %s %s %s", dn_locality,
dn_province, dn_country);
row++;
mutt_str_strfcpy(menu->dialog[row], _("This certificate was issued by:"), dialog_row_len);
row++;
buflen = sizeof(dn_common_name);
if (gnutls_x509_crt_get_issuer_dn_by_oid(cert, GNUTLS_OID_X520_COMMON_NAME, 0,
0, dn_common_name, &buflen) != 0)
{
dn_common_name[0] = '\0';
}
buflen = sizeof(dn_email);
if (gnutls_x509_crt_get_issuer_dn_by_oid(cert, GNUTLS_OID_PKCS9_EMAIL, 0, 0,
dn_email, &buflen) != 0)
{
dn_email[0] = '\0';
}
buflen = sizeof(dn_organization);
if (gnutls_x509_crt_get_issuer_dn_by_oid(cert, GNUTLS_OID_X520_ORGANIZATION_NAME,
0, 0, dn_organization, &buflen) != 0)
{
dn_organization[0] = '\0';
}
buflen = sizeof(dn_organizational_unit);
if (gnutls_x509_crt_get_issuer_dn_by_oid(cert, GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME,
0, 0, dn_organizational_unit, &buflen) != 0)
{
dn_organizational_unit[0] = '\0';
}
buflen = sizeof(dn_locality);
if (gnutls_x509_crt_get_issuer_dn_by_oid(cert, GNUTLS_OID_X520_LOCALITY_NAME,
0, 0, dn_locality, &buflen) != 0)
{
dn_locality[0] = '\0';
}
buflen = sizeof(dn_province);
if (gnutls_x509_crt_get_issuer_dn_by_oid(cert, GNUTLS_OID_X520_STATE_OR_PROVINCE_NAME,
0, 0, dn_province, &buflen) != 0)
{
dn_province[0] = '\0';
}
buflen = sizeof(dn_country);
if (gnutls_x509_crt_get_issuer_dn_by_oid(cert, GNUTLS_OID_X520_COUNTRY_NAME,
0, 0, dn_country, &buflen) != 0)
{
dn_country[0] = '\0';
}
snprintf(menu->dialog[row++], dialog_row_len, " %s %s", dn_common_name, dn_email);
snprintf(menu->dialog[row++], dialog_row_len, " %s", dn_organization);
snprintf(menu->dialog[row++], dialog_row_len, " %s", dn_organizational_unit);
snprintf(menu->dialog[row++], dialog_row_len, " %s %s %s", dn_locality,
dn_province, dn_country);
row++;
snprintf(menu->dialog[row++], dialog_row_len, _("This certificate is valid"));
t = gnutls_x509_crt_get_activation_time(cert);
mutt_date_make_tls(datestr, sizeof(datestr), t);
snprintf(menu->dialog[row++], dialog_row_len, _(" from %s"), datestr);
t = gnutls_x509_crt_get_expiration_time(cert);
mutt_date_make_tls(datestr, sizeof(datestr), t);
snprintf(menu->dialog[row++], dialog_row_len, _(" to %s"), datestr);
fpbuf[0] = '\0';
tls_fingerprint(GNUTLS_DIG_SHA, fpbuf, sizeof(fpbuf), certdata);
snprintf(menu->dialog[row++], dialog_row_len, _("SHA1 Fingerprint: %s"), fpbuf);
fpbuf[0] = '\0';
fpbuf[40] = '\0'; /* Ensure the second printed line is null terminated */
tls_fingerprint(GNUTLS_DIG_SHA256, fpbuf, sizeof(fpbuf), certdata);
fpbuf[39] = '\0'; /* Divide into two lines of output */
snprintf(menu->dialog[row++], dialog_row_len, "%s%s", _("SHA256 Fingerprint: "), fpbuf);
snprintf(menu->dialog[row++], dialog_row_len, "%*s%s",
(int) mutt_str_strlen(_("SHA256 Fingerprint: ")), "", fpbuf + 40);
if (certerr & CERTERR_NOTYETVALID)
{
row++;
mutt_str_strfcpy(menu->dialog[row],
_("WARNING: Server certificate is not yet valid"), dialog_row_len);
}
if (certerr & CERTERR_EXPIRED)
{
row++;
mutt_str_strfcpy(menu->dialog[row],
_("WARNING: Server certificate has expired"), dialog_row_len);
}
if (certerr & CERTERR_REVOKED)
{
row++;
mutt_str_strfcpy(menu->dialog[row],
_("WARNING: Server certificate has been revoked"), dialog_row_len);
}
if (certerr & CERTERR_HOSTNAME)
{
row++;
mutt_str_strfcpy(menu->dialog[row],
_("WARNING: Server hostname does not match certificate"),
dialog_row_len);
}
if (certerr & CERTERR_SIGNERNOTCA)
{
row++;
mutt_str_strfcpy(menu->dialog[row],
_("WARNING: Signer of server certificate is not a CA"), dialog_row_len);
}
snprintf(title, sizeof(title),
_("SSL Certificate check (certificate %zu of %zu in chain)"), len - idx, len);
menu->title = title;
/* certificates with bad dates, or that are revoked, must be
* accepted manually each and every time */
if (C_CertificateFile && !savedcert &&
!(certerr & (CERTERR_EXPIRED | CERTERR_NOTYETVALID | CERTERR_REVOKED)))
{
menu->prompt = _("(r)eject, accept (o)nce, (a)ccept always");
/* L10N: These three letters correspond to the choices in the string:
(r)eject, accept (o)nce, (a)ccept always.
This is an interactive certificate confirmation prompt for
a GNUTLS connection. */
menu->keys = _("roa");
}
else
{
menu->prompt = _("(r)eject, accept (o)nce");
/* L10N: These two letters correspond to the choices in the string:
(r)eject, accept (o)nce.
These is an interactive certificate confirmation prompt for
a GNUTLS connection. */
menu->keys = _("ro");
}
helpstr[0] = '\0';
mutt_make_help(buf, sizeof(buf), _("Exit "), MENU_GENERIC, OP_EXIT);
mutt_str_strcat(helpstr, sizeof(helpstr), buf);
mutt_make_help(buf, sizeof(buf), _("Help"), MENU_GENERIC, OP_HELP);
mutt_str_strcat(helpstr, sizeof(helpstr), buf);
menu->help = helpstr;
done = 0;
OptIgnoreMacroEvents = true;
while (done == 0)
{
switch (mutt_menu_loop(menu))
{
case -1: /* abort */
case OP_MAX + 1: /* reject */
case OP_EXIT:
done = 1;
break;
case OP_MAX + 3: /* accept always */
done = 0;
fp = mutt_file_fopen(C_CertificateFile, "a");
if (fp)
{
/* save hostname if necessary */
if (certerr & CERTERR_HOSTNAME)
{
fpbuf[0] = '\0';
tls_fingerprint(GNUTLS_DIG_MD5, fpbuf, sizeof(fpbuf), certdata);
fprintf(fp, "#H %s %s\n", hostname, fpbuf);
done = 1;
}
/* Save the cert for all other errors */
if (certerr ^ CERTERR_HOSTNAME)
{
done = 0;
ret = gnutls_pem_base64_encode_alloc("CERTIFICATE", certdata, &pemdata);
if (ret == 0)
{
if (fwrite(pemdata.data, pemdata.size, 1, fp) == 1)
{
done = 1;
}
gnutls_free(pemdata.data);
}
}
mutt_file_fclose(&fp);
}
if (done == 0)
{
mutt_error(_("Warning: Couldn't save certificate"));
}
else
{
mutt_message(_("Certificate saved"));
mutt_sleep(0);
}
/* fallthrough */
case OP_MAX + 2: /* accept once */
done = 2;
break;
}
}
OptIgnoreMacroEvents = false;
mutt_menu_pop_current(menu);
mutt_menu_destroy(&menu);
gnutls_x509_crt_deinit(cert);
return done == 2;
}
