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glib/gio/tests/gtesttlsbackend.c
Michael Catanzaro c50e543e9d gtlscertificate: make private key properties readable 
WebKit wants these private key properties to be readable in order to
implement a deserialization function. Currently they are read-only
because at the time GTlsCertificate was originally designed, the plan
was to support PKCS#11-backed private keys: private keys that are stored
on a smartcard, where the private key is completely unreadable. The
design goal was to support both memory-backed and smartcard-backed
private keys with the same GTlsCertificate API, abstracting away the
implementation differences such that code using GTlsCertificate doesn't
need to know the difference.

The original PKCS#11 implementation was never fully baked and at some
point in the past I deleted it all. It has since been replaced with a
new implementation, including a GTlsCertificate:private-key-pkcs11-uri
property, which is readable. So our current API already exposes the
differences between normal private keys and PKCS#11-backed private keys.
The point of making the private-key and private-key-pem properties
write-only was to avoid exposing this difference.

Do we have to make this API function readable? No, because WebKit could
be just as well served if we were to expose serialize and deserialize
functions instead. But WebKit needs to support serializing and
deserializing the non-private portion of GTlsCertificate with older
versions of GLib anyway, so we can do whatever is nicest for GLib. And I
think making this property readable is nicest, since the original design
reason for it to not be readable is now obsolete. The disadvantage to
this approach is that it's now possible for an application to read the
private-key or private-key-pem property, receive NULL, and think "this
certificate must not have a private key," which would be incorrect if
the private-key-pkcs11-uri property is set. That seems like a minor
risk, but it should be documented.
2021-06-15 16:06:52 -05:00

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/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2011 Collabora Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "gtesttlsbackend.h"
#include <glib.h>
static GType _g_test_tls_certificate_get_type (void);
static GType _g_test_tls_connection_get_type (void);
static GTlsDatabase * _g_test_tls_backend_get_default_database (GTlsBackend * backend);
static GType _g_test_tls_database_get_type (void);
struct _GTestTlsBackend {
GObject parent_instance;
};
static void g_test_tls_backend_iface_init (GTlsBackendInterface *iface);
#define g_test_tls_backend_get_type _g_test_tls_backend_get_type
G_DEFINE_TYPE_WITH_CODE (GTestTlsBackend, g_test_tls_backend, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_TLS_BACKEND,
g_test_tls_backend_iface_init)
g_io_extension_point_set_required_type (
g_io_extension_point_register (G_TLS_BACKEND_EXTENSION_POINT_NAME),
G_TYPE_TLS_BACKEND);
g_io_extension_point_implement (G_TLS_BACKEND_EXTENSION_POINT_NAME,
g_define_type_id,
"test",
999);)
static void
g_test_tls_backend_init (GTestTlsBackend *backend)
{
}
static void
g_test_tls_backend_class_init (GTestTlsBackendClass *backend_class)
{
}
static void
g_test_tls_backend_iface_init (GTlsBackendInterface *iface)
{
iface->get_certificate_type = _g_test_tls_certificate_get_type;
iface->get_client_connection_type = _g_test_tls_connection_get_type;
iface->get_server_connection_type = _g_test_tls_connection_get_type;
iface->get_dtls_client_connection_type = _g_test_tls_connection_get_type;
iface->get_dtls_server_connection_type = _g_test_tls_connection_get_type;
iface->get_default_database = _g_test_tls_backend_get_default_database;
iface->get_file_database_type = _g_test_tls_database_get_type;
}
static GTlsDatabase *
_g_test_tls_backend_get_default_database (GTlsBackend * backend)
{
static GTlsDatabase *default_db;
GError *error = NULL;
if (!default_db)
{
default_db = g_initable_new (_g_test_tls_database_get_type (),
NULL,
&error,
NULL);
g_assert_no_error (error);
}
return default_db;
}
/* Test certificate type */
typedef struct _GTestTlsCertificate GTestTlsCertificate;
typedef struct _GTestTlsCertificateClass GTestTlsCertificateClass;
struct _GTestTlsCertificate {
GTlsCertificate parent_instance;
gchar *key_pem;
gchar *cert_pem;
GTlsCertificate *issuer;
gchar *pkcs11_uri;
gchar *private_key_pkcs11_uri;
};
struct _GTestTlsCertificateClass {
GTlsCertificateClass parent_class;
};
enum
{
PROP_CERT_CERTIFICATE = 1,
PROP_CERT_CERTIFICATE_PEM,
PROP_CERT_PRIVATE_KEY,
PROP_CERT_PRIVATE_KEY_PEM,
PROP_CERT_ISSUER,
PROP_CERT_PKCS11_URI,
PROP_CERT_PRIVATE_KEY_PKCS11_URI,
PROP_CERT_NOT_VALID_BEFORE,
PROP_CERT_NOT_VALID_AFTER,
PROP_CERT_SUBJECT_NAME,
PROP_CERT_ISSUER_NAME,
PROP_CERT_DNS_NAMES,
PROP_CERT_IP_ADDRESSES,
};
static void g_test_tls_certificate_initable_iface_init (GInitableIface *iface);
#define g_test_tls_certificate_get_type _g_test_tls_certificate_get_type
G_DEFINE_TYPE_WITH_CODE (GTestTlsCertificate, g_test_tls_certificate, G_TYPE_TLS_CERTIFICATE,
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
g_test_tls_certificate_initable_iface_init))
static GTlsCertificateFlags
g_test_tls_certificate_verify (GTlsCertificate *cert,
GSocketConnectable *identity,
GTlsCertificate *trusted_ca)
{
/* For now, all of the tests expect the certificate to verify */
return 0;
}
static void
g_test_tls_certificate_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GTestTlsCertificate *cert = (GTestTlsCertificate *) object;
GPtrArray *data = NULL;
const gchar *dns_name = "a.example.com";
switch (prop_id)
{
case PROP_CERT_CERTIFICATE_PEM:
g_value_set_string (value, cert->cert_pem);
break;
case PROP_CERT_PRIVATE_KEY_PEM:
g_value_set_string (value, cert->key_pem);
break;
case PROP_CERT_ISSUER:
g_value_set_object (value, cert->issuer);
break;
case PROP_CERT_PKCS11_URI:
/* This test value simulates a backend that ignores the value
because it is unsupported */
if (g_strcmp0 (cert->pkcs11_uri, "unsupported") != 0)
g_value_set_string (value, cert->pkcs11_uri);
break;
case PROP_CERT_PRIVATE_KEY_PKCS11_URI:
g_value_set_string (value, cert->private_key_pkcs11_uri);
break;
case PROP_CERT_NOT_VALID_BEFORE:
g_value_take_boxed (value, g_date_time_new_from_iso8601 ("2020-10-12T17:49:44Z", NULL));
break;
case PROP_CERT_NOT_VALID_AFTER:
g_value_take_boxed (value, g_date_time_new_from_iso8601 ("2045-10-06T17:49:44Z", NULL));
break;
case PROP_CERT_SUBJECT_NAME:
g_value_set_string (value, "DC=COM,DC=EXAMPLE,CN=server.example.com");
break;
case PROP_CERT_ISSUER_NAME:
g_value_set_string (value, "DC=COM,DC=EXAMPLE,OU=Certificate Authority,CN=ca.example.com,emailAddress=ca@example.com");
break;
case PROP_CERT_DNS_NAMES:
data = g_ptr_array_new_with_free_func ((GDestroyNotify)g_bytes_unref);
g_ptr_array_add (data, g_bytes_new_static (dns_name, strlen (dns_name)));
g_value_take_boxed (value, data);
break;
case PROP_CERT_IP_ADDRESSES:
data = g_ptr_array_new_with_free_func (g_object_unref);
g_ptr_array_add (data, g_inet_address_new_from_string ("192.0.2.1"));
g_value_take_boxed (value, data);
break;
default:
g_assert_not_reached ();
break;
}
}
static void
g_test_tls_certificate_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GTestTlsCertificate *cert = (GTestTlsCertificate *) object;
switch (prop_id)
{
case PROP_CERT_CERTIFICATE_PEM:
cert->cert_pem = g_value_dup_string (value);
break;
case PROP_CERT_PRIVATE_KEY_PEM:
cert->key_pem = g_value_dup_string (value);
break;
case PROP_CERT_ISSUER:
cert->issuer = g_value_dup_object (value);
break;
case PROP_CERT_PKCS11_URI:
cert->pkcs11_uri = g_value_dup_string (value);
break;
case PROP_CERT_PRIVATE_KEY_PKCS11_URI:
cert->private_key_pkcs11_uri = g_value_dup_string (value);
break;
case PROP_CERT_CERTIFICATE:
case PROP_CERT_PRIVATE_KEY:
/* ignore */
break;
default:
g_assert_not_reached ();
break;
}
}
static void
g_test_tls_certificate_finalize (GObject *object)
{
GTestTlsCertificate *cert = (GTestTlsCertificate *) object;
g_free (cert->cert_pem);
g_free (cert->key_pem);
g_free (cert->pkcs11_uri);
g_free (cert->private_key_pkcs11_uri);
g_clear_object (&cert->issuer);
G_OBJECT_CLASS (g_test_tls_certificate_parent_class)->finalize (object);
}
static void
g_test_tls_certificate_class_init (GTestTlsCertificateClass *test_class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (test_class);
GTlsCertificateClass *certificate_class = G_TLS_CERTIFICATE_CLASS (test_class);
gobject_class->get_property = g_test_tls_certificate_get_property;
gobject_class->set_property = g_test_tls_certificate_set_property;
gobject_class->finalize = g_test_tls_certificate_finalize;
certificate_class->verify = g_test_tls_certificate_verify;
g_object_class_override_property (gobject_class, PROP_CERT_CERTIFICATE, "certificate");
g_object_class_override_property (gobject_class, PROP_CERT_CERTIFICATE_PEM, "certificate-pem");
g_object_class_override_property (gobject_class, PROP_CERT_PRIVATE_KEY, "private-key");
g_object_class_override_property (gobject_class, PROP_CERT_PRIVATE_KEY_PEM, "private-key-pem");
g_object_class_override_property (gobject_class, PROP_CERT_ISSUER, "issuer");
g_object_class_override_property (gobject_class, PROP_CERT_PKCS11_URI, "pkcs11-uri");
g_object_class_override_property (gobject_class, PROP_CERT_PRIVATE_KEY_PKCS11_URI, "private-key-pkcs11-uri");
g_object_class_override_property (gobject_class, PROP_CERT_NOT_VALID_BEFORE, "not-valid-before");
g_object_class_override_property (gobject_class, PROP_CERT_NOT_VALID_AFTER, "not-valid-after");
g_object_class_override_property (gobject_class, PROP_CERT_SUBJECT_NAME, "subject-name");
g_object_class_override_property (gobject_class, PROP_CERT_ISSUER_NAME, "issuer-name");
g_object_class_override_property (gobject_class, PROP_CERT_DNS_NAMES, "dns-names");
g_object_class_override_property (gobject_class, PROP_CERT_IP_ADDRESSES, "ip-addresses");
}
static void
g_test_tls_certificate_init (GTestTlsCertificate *certificate)
{
}
static gboolean
g_test_tls_certificate_initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
return TRUE;
}
static void
g_test_tls_certificate_initable_iface_init (GInitableIface *iface)
{
iface->init = g_test_tls_certificate_initable_init;
}
/* Dummy connection type; since GTlsClientConnection and
* GTlsServerConnection are just interfaces, we can implement them
* both on a single object.
*/
typedef struct _GTestTlsConnection GTestTlsConnection;
typedef struct _GTestTlsConnectionClass GTestTlsConnectionClass;
struct _GTestTlsConnection {
GTlsConnection parent_instance;
};
struct _GTestTlsConnectionClass {
GTlsConnectionClass parent_class;
};
enum
{
PROP_CONN_BASE_IO_STREAM = 1,
PROP_CONN_BASE_SOCKET,
PROP_CONN_USE_SYSTEM_CERTDB,
PROP_CONN_REQUIRE_CLOSE_NOTIFY,
PROP_CONN_REHANDSHAKE_MODE,
PROP_CONN_CERTIFICATE,
PROP_CONN_PEER_CERTIFICATE,
PROP_CONN_PEER_CERTIFICATE_ERRORS,
PROP_CONN_VALIDATION_FLAGS,
PROP_CONN_SERVER_IDENTITY,
PROP_CONN_USE_SSL3,
PROP_CONN_ACCEPTED_CAS,
PROP_CONN_AUTHENTICATION_MODE
};
static void g_test_tls_connection_initable_iface_init (GInitableIface *iface);
#define g_test_tls_connection_get_type _g_test_tls_connection_get_type
G_DEFINE_TYPE_WITH_CODE (GTestTlsConnection, g_test_tls_connection, G_TYPE_TLS_CONNECTION,
G_IMPLEMENT_INTERFACE (G_TYPE_TLS_CLIENT_CONNECTION, NULL)
G_IMPLEMENT_INTERFACE (G_TYPE_TLS_SERVER_CONNECTION, NULL)
G_IMPLEMENT_INTERFACE (G_TYPE_DATAGRAM_BASED, NULL)
G_IMPLEMENT_INTERFACE (G_TYPE_DTLS_CONNECTION, NULL)
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
g_test_tls_connection_initable_iface_init))
static void
g_test_tls_connection_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
}
static void
g_test_tls_connection_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
}
static gboolean
g_test_tls_connection_close (GIOStream *stream,
GCancellable *cancellable,
GError **error)
{
return TRUE;
}
static void
g_test_tls_connection_class_init (GTestTlsConnectionClass *connection_class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (connection_class);
GIOStreamClass *io_stream_class = G_IO_STREAM_CLASS (connection_class);
gobject_class->get_property = g_test_tls_connection_get_property;
gobject_class->set_property = g_test_tls_connection_set_property;
/* Need to override this because when initable_init fails it will
* dispose the connection, which will close it, which would
* otherwise try to close its input/output streams, which don't
* exist.
*/
io_stream_class->close_fn = g_test_tls_connection_close;
g_object_class_override_property (gobject_class, PROP_CONN_BASE_IO_STREAM, "base-io-stream");
g_object_class_override_property (gobject_class, PROP_CONN_BASE_SOCKET, "base-socket");
g_object_class_override_property (gobject_class, PROP_CONN_USE_SYSTEM_CERTDB, "use-system-certdb");
g_object_class_override_property (gobject_class, PROP_CONN_REQUIRE_CLOSE_NOTIFY, "require-close-notify");
g_object_class_override_property (gobject_class, PROP_CONN_REHANDSHAKE_MODE, "rehandshake-mode");
g_object_class_override_property (gobject_class, PROP_CONN_CERTIFICATE, "certificate");
g_object_class_override_property (gobject_class, PROP_CONN_PEER_CERTIFICATE, "peer-certificate");
g_object_class_override_property (gobject_class, PROP_CONN_PEER_CERTIFICATE_ERRORS, "peer-certificate-errors");
g_object_class_override_property (gobject_class, PROP_CONN_VALIDATION_FLAGS, "validation-flags");
g_object_class_override_property (gobject_class, PROP_CONN_SERVER_IDENTITY, "server-identity");
g_object_class_override_property (gobject_class, PROP_CONN_USE_SSL3, "use-ssl3");
g_object_class_override_property (gobject_class, PROP_CONN_ACCEPTED_CAS, "accepted-cas");
g_object_class_override_property (gobject_class, PROP_CONN_AUTHENTICATION_MODE, "authentication-mode");
}
static void
g_test_tls_connection_init (GTestTlsConnection *connection)
{
}
static gboolean
g_test_tls_connection_initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
g_set_error_literal (error, G_TLS_ERROR, G_TLS_ERROR_UNAVAILABLE,
"TLS Connection support is not available");
return FALSE;
}
static void
g_test_tls_connection_initable_iface_init (GInitableIface *iface)
{
iface->init = g_test_tls_connection_initable_init;
}
/* Test database type */
typedef struct _GTestTlsDatabase GTestTlsDatabase;
typedef struct _GTestTlsDatabaseClass GTestTlsDatabaseClass;
struct _GTestTlsDatabase {
GTlsDatabase parent_instance;
gchar *anchors;
};
struct _GTestTlsDatabaseClass {
GTlsDatabaseClass parent_class;
};
enum
{
PROP_DATABASE_ANCHORS = 1,
};
static void g_test_tls_database_initable_iface_init (GInitableIface *iface);
static void g_test_tls_file_database_file_database_interface_init (GInitableIface *iface);
#define g_test_tls_database_get_type _g_test_tls_database_get_type
G_DEFINE_TYPE_WITH_CODE (GTestTlsDatabase, g_test_tls_database, G_TYPE_TLS_DATABASE,
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
g_test_tls_database_initable_iface_init);
G_IMPLEMENT_INTERFACE (G_TYPE_TLS_FILE_DATABASE,
g_test_tls_file_database_file_database_interface_init))
static void
g_test_tls_database_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GTestTlsDatabase *db = (GTestTlsDatabase *) object;
switch (prop_id)
{
case PROP_DATABASE_ANCHORS:
g_value_set_string (value, db->anchors);
break;
default:
g_assert_not_reached ();
break;
}
}
static void
g_test_tls_database_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GTestTlsDatabase *db = (GTestTlsDatabase *) object;
switch (prop_id)
{
case PROP_DATABASE_ANCHORS:
g_free (db->anchors);
db->anchors = g_value_dup_string (value);
break;
default:
g_assert_not_reached ();
break;
}
}
static void
g_test_tls_database_finalize (GObject *object)
{
GTestTlsDatabase *db = (GTestTlsDatabase *) object;
g_free (db->anchors);
G_OBJECT_CLASS (g_test_tls_database_parent_class)->finalize (object);
}
static void
g_test_tls_database_class_init (GTestTlsDatabaseClass *test_class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (test_class);
gobject_class->get_property = g_test_tls_database_get_property;
gobject_class->set_property = g_test_tls_database_set_property;
gobject_class->finalize = g_test_tls_database_finalize;
g_object_class_override_property (gobject_class, PROP_DATABASE_ANCHORS, "anchors");
}
static void
g_test_tls_database_init (GTestTlsDatabase *database)
{
}
static gboolean
g_test_tls_database_initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
return TRUE;
}
static void
g_test_tls_file_database_file_database_interface_init (GInitableIface *iface)
{
}
static void
g_test_tls_database_initable_iface_init (GInitableIface *iface)
{
iface->init = g_test_tls_database_initable_init;
}
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