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[svn] Check for the validity of the presented X509 cert.

This commit is contained in:
hniksic 2005-07-07 10:04:45 -07:00
parent d3617fbcf0
commit 87bcfdb7de
2 changed files with 61 additions and 7 deletions
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5
src/ChangeLog
View File

@ -1,3 +1,8 @@
2005-07-07 Hrvoje Niksic <hniksic@xemacs.org>
* gnutls.c (ssl_check_certificate): Check for the validity of the
presented X509 certificate.
2005-07-07 Hrvoje Niksic <hniksic@xemacs.org>
* openssl.c (ssl_check_certificate): Print custom error messages

63
src/gnutls.c
View File

@ -38,6 +38,7 @@ so, delete this exception statement from your version. */
#include <stdio.h>
#include <gnutls/gnutls.h>
#include <gnutls/x509.h>
#include "wget.h"
#include "utils.h"
@ -212,22 +213,20 @@ ssl_check_certificate (int fd, const char *host)
struct wgnutls_transport_context *ctx = fd_transport_context (fd);
unsigned int status;
const gnutls_datum *cert_list;
int cert_list_size, ret;
gnutls_x509_crt cert;
int err;
/* If the user has specified --no-check-cert, we still want to warn
him about problems with the server's certificate. */
const char *severity = opt.check_cert ? _("ERROR") : _("WARNING");
bool success = true;
ret = gnutls_certificate_verify_peers2 (ctx->session, &status);
if (ret < 0)
err = gnutls_certificate_verify_peers2 (ctx->session, &status);
if (err < 0)
{
logprintf (LOG_NOTQUIET, _("%s: No certificate presented by %s.\n"),
severity, escnonprint (host));
success = false;
goto no_cert;
goto out;
}
if (status & GNUTLS_CERT_INVALID)
@ -249,6 +248,56 @@ ssl_check_certificate (int fd, const char *host)
success = false;
}
no_cert:
if (gnutls_certificate_type_get (ctx->session) == GNUTLS_CRT_X509)
{
time_t now = time (NULL);
gnutls_x509_crt cert;
const gnutls_datum *cert_list;
unsigned int cert_list_size;
if ((err = gnutls_x509_crt_init (&cert)) < 0)
{
logprintf (LOG_NOTQUIET, _("Error initializing X509 certificate: %s\n"),
gnutls_strerror (err));
success = false;
goto out;
}
cert_list = gnutls_certificate_get_peers (ctx->session, &cert_list_size);
if (!cert_list)
{
logprintf (LOG_NOTQUIET, _("No certificate found\n"));
success = false;
goto out;
}
err = gnutls_x509_crt_import (cert, cert_list, GNUTLS_X509_FMT_DER);
if (err < 0)
{
logprintf (LOG_NOTQUIET, _("Error parsing certificate: %s\n"),
gnutls_strerror (err));
success = false;
goto out;
}
if (now < gnutls_x509_crt_get_activation_time (cert))
{
logprintf (LOG_NOTQUIET, _("The certificate has not yet been activated\n"));
success = false;
}
if (now >= gnutls_x509_crt_get_expiration_time (cert))
{
logprintf (LOG_NOTQUIET, _("The certificate has expired\n"));
success = false;
}
if (!gnutls_x509_crt_check_hostname (cert, host))
{
logprintf (LOG_NOTQUIET,
_("The certificate's owner does not match hostname '%s'\n"),
host);
success = false;
}
gnutls_x509_crt_deinit (cert);
}
out:
return opt.check_cert ? success : true;
}