1293 lines
39 KiB
C
1293 lines
39 KiB
C
/* $Id$
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*
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* Lasso - A free implementation of the Liberty Alliance specifications.
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*
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* Copyright (C) 2004-2007 Entr'ouvert
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* http://lasso.entrouvert.org
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*
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* Authors: See AUTHORS file in top-level directory.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/**
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* SECTION:provider
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* @short_description: Service or identity provider
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*
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* It holds all the data about a provider.
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**/
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#include "../xml/private.h"
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#include <libxml/xpath.h>
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#include <libxml/xpathInternals.h>
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#include <xmlsec/base64.h>
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#include <xmlsec/errors.h>
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#include <xmlsec/xmldsig.h>
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#include <xmlsec/xmltree.h>
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#include <xmlsec/templates.h>
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#include "provider.h"
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#include "providerprivate.h"
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#include "../saml-2.0/providerprivate.h"
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#include <unistd.h>
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#include "../utils.h"
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#include "../debug.h"
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static char *protocol_uris[] = {
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"http://projectliberty.org/profiles/fedterm",
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"http://projectliberty.org/profiles/nim",
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"http://projectliberty.org/profiles/rni",
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"http://projectliberty.org/profiles/slo",
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NULL /* none for single sign on */
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};
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static char *protocol_md_nodename[] = {
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"FederationTerminationNotificationProtocolProfile",
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"NameIdentifierMappingProtocolProfile",
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"RegisterNameIdentifierProtocolProfile",
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"SingleLogoutProtocolProfile",
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"SingleSignOnProtocolProfile"
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};
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static char *protocol_roles[] = { NULL, "sp", "idp"};
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char *protocol_methods[] = {"", "", "", "", "", "-http", "-soap"};
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static gboolean lasso_provider_load_metadata_from_doc(LassoProvider *provider, xmlDoc *doc);
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/*****************************************************************************/
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/* public methods */
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/*****************************************************************************/
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/**
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* lasso_provider_get_assertion_consumer_service_url:
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* @provider: a #LassoProvider
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* @service_id: the AssertionConsumerServiceID, NULL for default
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*
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* Extracts the AssertionConsumerServiceURL from the provider metadata
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* descriptor.
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*
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* Return value: the element value, NULL if the element was not found. This
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* string must be freed by the caller.
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**/
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gchar*
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lasso_provider_get_assertion_consumer_service_url(LassoProvider *provider, const char *service_id)
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{
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GHashTable *descriptor;
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GList *l;
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char *sid = (char*)service_id;
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char *name;
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g_return_val_if_fail(LASSO_IS_PROVIDER(provider), NULL);
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if (sid == NULL)
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sid = provider->private_data->default_assertion_consumer;
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descriptor = provider->private_data->SPDescriptor;
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if (descriptor == NULL)
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return NULL;
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name = g_strdup_printf("AssertionConsumerServiceURL %s", sid);
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l = g_hash_table_lookup(descriptor, name);
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g_free(name);
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if (l == NULL)
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return NULL;
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return g_strdup(l->data);
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}
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/**
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* lasso_provider_get_metadata_one:
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* @provider: a #LassoProvider
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* @name: the element name
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*
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* Extracts the element @name from the provider metadata descriptor.
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*
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* Return value: the element value, NULL if the element was not found. This
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* string must be freed by the caller.
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**/
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gchar*
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lasso_provider_get_metadata_one(LassoProvider *provider, const char *name)
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{
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GList *l;
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GHashTable *descriptor;
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g_return_val_if_fail(LASSO_IS_PROVIDER(provider), NULL);
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descriptor = provider->private_data->SPDescriptor; /* default to SP */
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if (provider->role == LASSO_PROVIDER_ROLE_IDP)
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descriptor = provider->private_data->IDPDescriptor;
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if (descriptor == NULL)
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return NULL;
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l = g_hash_table_lookup(descriptor, name);
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if (l)
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return g_strdup(l->data);
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return NULL;
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}
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/**
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* lasso_provider_get_metadata_list:
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* @provider: a #LassoProvider
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* @name: the element name
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*
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* Extracts zero to many elements from the provider metadata descriptor.
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*
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* Return value: a #GList with the elements. This GList is internally
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* allocated and points to internally allocated strings. It must
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* not be freed, modified or stored.
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**/
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GList*
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lasso_provider_get_metadata_list(LassoProvider *provider, const char *name)
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{
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GHashTable *descriptor;
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g_return_val_if_fail(LASSO_IS_PROVIDER(provider), NULL);
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descriptor = provider->private_data->SPDescriptor; /* default to SP */
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if (provider->role == LASSO_PROVIDER_ROLE_IDP)
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descriptor = provider->private_data->IDPDescriptor;
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return g_hash_table_lookup(descriptor, name);
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}
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/**
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* lasso_provider_get_first_http_method:
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* @provider: a #LassoProvider
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* @remote_provider: a #LassoProvider depicting the remote provider
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* @protocol_type: a Liberty profile
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*
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* Looks up and returns a #LassoHttpMethod appropriate for performing the
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* @protocol_type between @provider and @remote_provider.
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*
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* Return value: the #LassoHttpMethod
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**/
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LassoHttpMethod
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lasso_provider_get_first_http_method(LassoProvider *provider,
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LassoProvider *remote_provider, LassoMdProtocolType protocol_type)
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{
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char *protocol_profile_prefix;
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GList *local_supported_profiles;
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GList *remote_supported_profiles;
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GList *t1, *t2 = NULL;
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gboolean found;
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g_return_val_if_fail(LASSO_IS_PROVIDER(provider), LASSO_HTTP_METHOD_NONE);
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if (provider->private_data->conformance == LASSO_PROTOCOL_SAML_2_0) {
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return lasso_saml20_provider_get_first_http_method(
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provider, remote_provider, protocol_type);
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}
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if (remote_provider->role == LASSO_PROVIDER_ROLE_SP)
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provider->role = LASSO_PROVIDER_ROLE_IDP;
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if (remote_provider->role == LASSO_PROVIDER_ROLE_IDP)
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provider->role = LASSO_PROVIDER_ROLE_SP;
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protocol_profile_prefix = g_strdup_printf("%s-%s",
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protocol_uris[protocol_type], protocol_roles[provider->role]);
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local_supported_profiles = lasso_provider_get_metadata_list(
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provider, protocol_md_nodename[protocol_type]);
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remote_supported_profiles = lasso_provider_get_metadata_list(
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remote_provider, protocol_md_nodename[protocol_type]);
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found = FALSE;
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t1 = local_supported_profiles;
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while (t1 && !found) {
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if (g_str_has_prefix(t1->data, protocol_profile_prefix)) {
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t2 = remote_supported_profiles;
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while (t2 && !found) {
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if (strcmp(t1->data, t2->data) == 0) {
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found = TRUE;
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break; /* avoid the g_list_next */
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}
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t2 = g_list_next(t2);
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}
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}
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t1 = g_list_next(t1);
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}
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g_free(protocol_profile_prefix);
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if (found) {
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if (g_str_has_suffix(t2->data, "http"))
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return LASSO_HTTP_METHOD_REDIRECT;
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if (t2 && g_str_has_suffix(t2->data, "soap"))
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return LASSO_HTTP_METHOD_SOAP;
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g_assert_not_reached();
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}
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return LASSO_HTTP_METHOD_NONE;
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}
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/**
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* lasso_provider_accept_http_method:
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* @provider: a #LassoProvider
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* @remote_provider: a #LassoProvider depicting the remote provider
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* @protocol_type: a Liberty profile type
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* @http_method: an HTTP method
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* @initiate_profile: whether @provider initiates the profile
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*
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* Gets if @http_method is an appropriate method for the @protocol_type profile
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* between @provider and @remote_provider.
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*
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* Return value: %TRUE if it is appropriate
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**/
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gboolean
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lasso_provider_accept_http_method(LassoProvider *provider, LassoProvider *remote_provider,
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LassoMdProtocolType protocol_type, LassoHttpMethod http_method,
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gboolean initiate_profile)
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{
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LassoProviderRole initiating_role;
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char *protocol_profile;
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g_return_val_if_fail(LASSO_IS_PROVIDER(provider), FALSE); /* Be conservative */
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if (provider->private_data->conformance == LASSO_PROTOCOL_SAML_2_0) {
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return lasso_saml20_provider_accept_http_method(
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provider, remote_provider, protocol_type,
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http_method, initiate_profile);
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}
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initiating_role = remote_provider->role;
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if (remote_provider->role == LASSO_PROVIDER_ROLE_SP) {
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provider->role = LASSO_PROVIDER_ROLE_IDP;
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}
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if (remote_provider->role == LASSO_PROVIDER_ROLE_IDP) {
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provider->role = LASSO_PROVIDER_ROLE_SP;
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}
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if (initiate_profile)
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initiating_role = provider->role;
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protocol_profile = g_strdup_printf("%s-%s%s",
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protocol_uris[protocol_type],
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protocol_roles[initiating_role],
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protocol_methods[http_method+1]);
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if (lasso_provider_has_protocol_profile(provider,
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protocol_type, protocol_profile) == FALSE) {
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g_free(protocol_profile);
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return FALSE;
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}
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if (lasso_provider_has_protocol_profile(remote_provider,
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protocol_type, protocol_profile) == FALSE) {
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g_free(protocol_profile);
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return FALSE;
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}
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g_free(protocol_profile);
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return TRUE;
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}
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/**
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* lasso_provider_has_protocol_profile:
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* @provider: a #LassoProvider
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* @protocol_type: a Liberty profile type
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* @protocol_profile: a fully-qualified Liberty profile
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*
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* Gets if @provider supports @protocol_profile.
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*
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* Return value: %TRUE if it is supported
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**/
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gboolean
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lasso_provider_has_protocol_profile(LassoProvider *provider,
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LassoMdProtocolType protocol_type, const char *protocol_profile)
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{
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GList *supported;
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g_return_val_if_fail(LASSO_IS_PROVIDER(provider), FALSE); /* Be conservative */
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supported = lasso_provider_get_metadata_list(
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provider, protocol_md_nodename[protocol_type]);
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if (g_list_find_custom(supported, protocol_profile, (GCompareFunc)strcmp) == NULL)
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return FALSE;
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return TRUE;
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}
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/**
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* lasso_provider_get_base64_succinct_id:
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* @provider: a #LassoProvider
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*
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* Computes and returns the base64-encoded provider succinct ID.
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*
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* Return value: the provider succinct ID. This string must be freed by the
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* caller.
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**/
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char*
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lasso_provider_get_base64_succinct_id(LassoProvider *provider)
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{
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char *succinct_id, *base64_succinct_id;
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g_return_val_if_fail(LASSO_IS_PROVIDER(provider), NULL);
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succinct_id = lasso_sha1(provider->ProviderID);
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base64_succinct_id = (char*)xmlSecBase64Encode((xmlChar*)succinct_id, 20, 0);
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xmlFree(succinct_id);
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return base64_succinct_id;
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}
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/**
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* lasso_provider_get_organization
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* @provider: a #LassoProvider
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*
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* Returns the provider metadata <Organization> XML node.
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*
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* Return value: the <Organization/> node (libxml2 xmlNode*); or NULL if it is
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* not found. This xmlnode must be freed by the caller.
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**/
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xmlNode*
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lasso_provider_get_organization(LassoProvider *provider)
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{
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g_return_val_if_fail(LASSO_IS_PROVIDER(provider), NULL);
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if (provider->private_data->organization) {
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return xmlCopyNode(provider->private_data->organization, 1);
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} else {
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return NULL;
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}
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}
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/*****************************************************************************/
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/* private methods */
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/*****************************************************************************/
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static struct XmlSnippet schema_snippets[] = {
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{ "PublicKeyFilePath", SNIPPET_CONTENT, G_STRUCT_OFFSET(LassoProvider, public_key), NULL, NULL, NULL},
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{ "CaCertChainFilePath", SNIPPET_CONTENT, G_STRUCT_OFFSET(LassoProvider, ca_cert_chain), NULL, NULL, NULL},
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{ "MetadataFilePath", SNIPPET_CONTENT, G_STRUCT_OFFSET(LassoProvider, metadata_filename), NULL, NULL, NULL},
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{ "ProviderID", SNIPPET_ATTRIBUTE, G_STRUCT_OFFSET(LassoProvider, ProviderID), NULL, NULL, NULL},
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{NULL, 0, 0, NULL, NULL, NULL}
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};
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static LassoNodeClass *parent_class = NULL;
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xmlSecKey*
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lasso_provider_get_public_key(LassoProvider *provider)
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{
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g_return_val_if_fail(LASSO_IS_PROVIDER(provider), NULL);
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return provider->private_data->public_key;
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}
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static void
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load_descriptor(xmlNode *xmlnode, GHashTable *descriptor, LassoProvider *provider)
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{
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xmlNode *t;
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GList *elements;
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char *name;
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xmlChar *value;
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xmlChar *use;
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t = xmlnode->children;
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while (t) {
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if (t->type != XML_ELEMENT_NODE) {
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t = t->next;
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continue;
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}
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if (strcmp((char*)t->name, "KeyDescriptor") == 0) {
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use = xmlGetProp(t, (xmlChar*)"use");
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if (use && strcmp((char*)use, "signing") == 0) {
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provider->private_data->signing_key_descriptor = xmlCopyNode(t, 1);
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}
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if (use && strcmp((char*)use, "encryption") == 0) {
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provider->private_data->encryption_key_descriptor =
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xmlCopyNode(t, 1);
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}
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if (use) {
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xmlFree(use);
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}
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t = t->next;
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continue;
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}
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if (strcmp((char*)t->name, "AssertionConsumerServiceURL") == 0) {
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char *isDefault = (char*)xmlGetProp(t, (xmlChar*)"isDefault");
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char *id = (char*)xmlGetProp(t, (xmlChar*)"id");
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name = g_strdup_printf("%s %s", t->name, id);
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if (isDefault) {
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if (strcmp(isDefault, "true") == 0 || strcmp(isDefault, "1") == 0)
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lasso_assign_string(provider->private_data->default_assertion_consumer,
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id);
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xmlFree(isDefault);
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}
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xmlFree(id);
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} else {
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name = g_strdup((char*)t->name);
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}
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elements = g_hash_table_lookup(descriptor, name);
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value = xmlNodeGetContent(t);
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elements = g_list_append(elements, g_strdup((char*)value));
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// Do not mix g_free strings with xmlFree strings
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xmlFree(value);
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g_hash_table_insert(descriptor, name, elements);
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t = t->next;
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}
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}
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static xmlNode*
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get_xmlNode(LassoNode *node, gboolean lasso_dump)
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{
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xmlNode *xmlnode;
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LassoProvider *provider = LASSO_PROVIDER(node);
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char *roles[] = { "None", "SP", "IdP"};
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char *encryption_mode[] = { "None", "NameId", "Assertion", "Both" };
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xmlnode = parent_class->get_xmlNode(node, lasso_dump);
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/* Save provider role */
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xmlSetProp(xmlnode, (xmlChar*)"ProviderDumpVersion", (xmlChar*)"2");
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if (provider->role) {
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xmlSetProp(xmlnode, (xmlChar*)"ProviderRole", (xmlChar*)roles[provider->role]);
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}
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/* Save encryption mode */
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xmlSetProp(xmlnode, (xmlChar*)"EncryptionMode",
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(xmlChar*)encryption_mode[provider->private_data->encryption_mode]);
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return xmlnode;
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}
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static int
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init_from_xml(LassoNode *node, xmlNode *xmlnode)
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{
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LassoProvider *provider = LASSO_PROVIDER(node);
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xmlChar *s;
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parent_class->init_from_xml(node, xmlnode);
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if (xmlnode == NULL) {
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return LASSO_XML_ERROR_OBJECT_CONSTRUCTION_FAILED;
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}
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/* Load provider role */
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s = xmlGetProp(xmlnode, (xmlChar*)"ProviderRole");
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if (s != NULL && strcmp((char*)s, "SP") == 0) {
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provider->role = LASSO_PROVIDER_ROLE_SP;
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} else if (s != NULL && strcmp((char*)s, "IdP") == 0) {
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provider->role = LASSO_PROVIDER_ROLE_IDP;
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}
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if (s != NULL) {
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xmlFree(s);
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}
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/* Load encryption mode */
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s = xmlGetProp(xmlnode, (xmlChar*)"EncryptionMode");
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if (s != NULL && strcmp((char*)s, "NameId") == 0) {
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provider->private_data->encryption_mode = LASSO_ENCRYPTION_MODE_NAMEID;
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} else if (s != NULL && strcmp((char*)s, "Assertion") == 0) {
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provider->private_data->encryption_mode = LASSO_ENCRYPTION_MODE_ASSERTION;
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} else if (s != NULL && strcmp((char*)s, "Both") == 0) {
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provider->private_data->encryption_mode =
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LASSO_ENCRYPTION_MODE_NAMEID | LASSO_ENCRYPTION_MODE_ASSERTION;
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}
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if (s != NULL) {
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xmlFree(s);
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}
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/* Load metadata */
|
|
if (provider->metadata_filename) {
|
|
if (! lasso_provider_load_metadata(provider, provider->metadata_filename)) {
|
|
lasso_provider_load_metadata_from_buffer(provider, provider->metadata_filename);
|
|
}
|
|
}
|
|
|
|
/* Load signing and encryption public keys */
|
|
lasso_provider_load_public_key(provider, LASSO_PUBLIC_KEY_SIGNING);
|
|
lasso_provider_load_public_key(provider, LASSO_PUBLIC_KEY_ENCRYPTION);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* overridden parent class methods */
|
|
/*****************************************************************************/
|
|
|
|
static void
|
|
free_list_strings(G_GNUC_UNUSED gchar *key, GList *list, G_GNUC_UNUSED gpointer data)
|
|
{
|
|
g_list_foreach(list, (GFunc)g_free, NULL);
|
|
g_list_free(list);
|
|
}
|
|
|
|
static void
|
|
dispose(GObject *object)
|
|
{
|
|
LassoProvider *provider = LASSO_PROVIDER(object);
|
|
|
|
if (provider->private_data->dispose_has_run) {
|
|
return;
|
|
}
|
|
provider->private_data->dispose_has_run = TRUE;
|
|
|
|
if (provider->private_data->IDPDescriptor) {
|
|
g_hash_table_foreach(provider->private_data->IDPDescriptor,
|
|
(GHFunc)free_list_strings, NULL);
|
|
g_hash_table_destroy(provider->private_data->IDPDescriptor);
|
|
}
|
|
provider->private_data->IDPDescriptor = NULL;
|
|
|
|
if (provider->private_data->SPDescriptor) {
|
|
g_hash_table_foreach(provider->private_data->SPDescriptor,
|
|
(GHFunc)free_list_strings, NULL);
|
|
g_hash_table_destroy(provider->private_data->SPDescriptor);
|
|
}
|
|
provider->private_data->SPDescriptor = NULL;
|
|
|
|
if (provider->private_data->organization) {
|
|
xmlFreeNode(provider->private_data->organization);
|
|
provider->private_data->organization = NULL;
|
|
}
|
|
|
|
if (provider->private_data->default_assertion_consumer) {
|
|
g_free(provider->private_data->default_assertion_consumer);
|
|
provider->private_data->default_assertion_consumer = NULL;
|
|
}
|
|
|
|
if (provider->private_data->public_key) {
|
|
xmlSecKeyDestroy(provider->private_data->public_key);
|
|
provider->private_data->public_key = NULL;
|
|
}
|
|
|
|
if (provider->private_data->signing_key_descriptor) {
|
|
xmlFreeNode(provider->private_data->signing_key_descriptor);
|
|
provider->private_data->signing_key_descriptor = NULL;
|
|
}
|
|
|
|
if (provider->private_data->encryption_key_descriptor) {
|
|
xmlFreeNode(provider->private_data->encryption_key_descriptor);
|
|
provider->private_data->encryption_key_descriptor = NULL;
|
|
}
|
|
|
|
if (provider->private_data->encryption_public_key_str) {
|
|
g_free(provider->private_data->encryption_public_key_str);
|
|
provider->private_data->encryption_public_key_str = NULL;
|
|
}
|
|
|
|
if (provider->private_data->encryption_public_key) {
|
|
xmlSecKeyDestroy(provider->private_data->encryption_public_key);
|
|
provider->private_data->encryption_public_key = NULL;
|
|
}
|
|
|
|
g_free(provider->private_data->affiliation_id);
|
|
provider->private_data->affiliation_id = NULL;
|
|
g_free(provider->private_data->affiliation_owner_id);
|
|
provider->private_data->affiliation_owner_id = NULL;
|
|
|
|
G_OBJECT_CLASS(parent_class)->dispose(G_OBJECT(provider));
|
|
}
|
|
|
|
static void
|
|
finalize(GObject *object)
|
|
{
|
|
LassoProvider *provider = LASSO_PROVIDER(object);
|
|
|
|
g_free(provider->private_data);
|
|
provider->private_data = NULL;
|
|
|
|
G_OBJECT_CLASS(parent_class)->finalize(G_OBJECT(provider));
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* instance and class init functions */
|
|
/*****************************************************************************/
|
|
|
|
|
|
static void
|
|
instance_init(LassoProvider *provider)
|
|
{
|
|
provider->role = LASSO_PROVIDER_ROLE_NONE;
|
|
provider->ProviderID = NULL;
|
|
provider->metadata_filename = NULL;
|
|
provider->public_key = NULL;
|
|
provider->ca_cert_chain = NULL;
|
|
provider->private_data = g_new(LassoProviderPrivate, 1);
|
|
provider->private_data->dispose_has_run = FALSE;
|
|
provider->private_data->default_assertion_consumer = NULL;
|
|
provider->private_data->affiliation_id = NULL;
|
|
provider->private_data->affiliation_owner_id = NULL;
|
|
provider->private_data->organization = NULL;
|
|
provider->private_data->public_key = NULL;
|
|
provider->private_data->signing_key_descriptor = NULL;
|
|
provider->private_data->encryption_key_descriptor = NULL;
|
|
provider->private_data->encryption_public_key_str = NULL;
|
|
provider->private_data->encryption_public_key = NULL;
|
|
provider->private_data->encryption_mode = LASSO_ENCRYPTION_MODE_NONE;
|
|
provider->private_data->encryption_sym_key_type = LASSO_ENCRYPTION_SYM_KEY_TYPE_AES_128;
|
|
|
|
/* no value_destroy_func since it shouldn't destroy the GList on insert */
|
|
provider->private_data->IDPDescriptor = g_hash_table_new_full(
|
|
g_str_hash, g_str_equal, g_free, NULL);
|
|
provider->private_data->SPDescriptor = g_hash_table_new_full(
|
|
g_str_hash, g_str_equal, g_free, NULL);
|
|
}
|
|
|
|
static void
|
|
class_init(LassoProviderClass *klass)
|
|
{
|
|
LassoNodeClass *nclass = LASSO_NODE_CLASS(klass);
|
|
|
|
parent_class = g_type_class_peek_parent(klass);
|
|
nclass->node_data = g_new0(LassoNodeClassData, 1);
|
|
lasso_node_class_set_nodename(nclass, "Provider");
|
|
lasso_node_class_set_ns(nclass, LASSO_LASSO_HREF, LASSO_LASSO_PREFIX);
|
|
lasso_node_class_add_snippets(nclass, schema_snippets);
|
|
nclass->get_xmlNode = get_xmlNode;
|
|
nclass->init_from_xml = init_from_xml;
|
|
|
|
G_OBJECT_CLASS(klass)->dispose = dispose;
|
|
G_OBJECT_CLASS(klass)->finalize = finalize;
|
|
}
|
|
|
|
GType
|
|
lasso_provider_get_type()
|
|
{
|
|
static GType this_type = 0;
|
|
|
|
if (!this_type) {
|
|
static const GTypeInfo this_info = {
|
|
sizeof (LassoProviderClass),
|
|
NULL,
|
|
NULL,
|
|
(GClassInitFunc) class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof(LassoProvider),
|
|
0,
|
|
(GInstanceInitFunc) instance_init,
|
|
NULL
|
|
};
|
|
|
|
this_type = g_type_register_static(LASSO_TYPE_NODE,
|
|
"LassoProvider", &this_info, 0);
|
|
}
|
|
return this_type;
|
|
}
|
|
|
|
LassoProtocolConformance
|
|
lasso_provider_get_protocol_conformance(LassoProvider *provider)
|
|
{
|
|
g_return_val_if_fail(LASSO_IS_PROVIDER(provider), LASSO_PROTOCOL_NONE);
|
|
return provider->private_data->conformance;
|
|
}
|
|
|
|
/**
|
|
* lasso_provider_load_metadata_from_buffer:
|
|
* @provider: a #LassProvider object
|
|
* @metadata: a char* string containing a metadata XML file.
|
|
*
|
|
* Load metadata into this provider object using the given string buffer.
|
|
*
|
|
* Return value: TRUE if successfull, FALSE otherwise.
|
|
**/
|
|
gboolean
|
|
lasso_provider_load_metadata_from_buffer(LassoProvider *provider, const gchar *metadata)
|
|
{
|
|
xmlDoc *doc;
|
|
gboolean rc = TRUE;
|
|
|
|
g_return_val_if_fail(LASSO_IS_PROVIDER(provider), FALSE);
|
|
doc = lasso_xml_parse_memory(metadata, strlen(metadata));
|
|
if (doc == NULL) {
|
|
char *extract;
|
|
extract = lasso_safe_prefix_string(metadata, 80);
|
|
message(G_LOG_LEVEL_CRITICAL, "Cannot parse metadatas: '%s'", extract);
|
|
lasso_release(extract);
|
|
return FALSE;
|
|
}
|
|
goto_cleanup_if_fail_with_rc (lasso_provider_load_metadata_from_doc(provider, doc), FALSE);
|
|
lasso_assign_string(provider->metadata_filename, metadata);
|
|
cleanup:
|
|
lasso_release_doc(doc);
|
|
return rc;
|
|
|
|
}
|
|
|
|
/**
|
|
* lasso_provider_load_metadata:
|
|
* @provider: a #LassProvider object
|
|
* @path: the path to a SAML 2.0 of ID-FF 1.2 metadata file.
|
|
*
|
|
* Load metadata into this provider object by reading them from the given file.
|
|
*
|
|
* Return value: TRUE if successfull, FALSE otherwise.
|
|
**/
|
|
gboolean
|
|
lasso_provider_load_metadata(LassoProvider *provider, const gchar *path)
|
|
{
|
|
xmlDoc *doc;
|
|
gboolean rc = TRUE;
|
|
|
|
g_return_val_if_fail(LASSO_IS_PROVIDER(provider), FALSE);
|
|
if (access(path, R_OK) != 0) {
|
|
return FALSE;
|
|
}
|
|
doc = xmlParseFile(path);
|
|
goto_cleanup_if_fail_with_rc(doc != NULL, FALSE);
|
|
goto_cleanup_if_fail_with_rc(lasso_provider_load_metadata_from_doc(provider, doc), FALSE);
|
|
/** Conserve metadata path for future dump/reload */
|
|
lasso_assign_string(provider->metadata_filename, path);
|
|
cleanup:
|
|
lasso_release_doc(doc);
|
|
return rc;
|
|
}
|
|
|
|
static gboolean
|
|
lasso_provider_load_metadata_from_doc(LassoProvider *provider, xmlDoc *doc)
|
|
{
|
|
xmlXPathContext *xpathCtx;
|
|
xmlXPathObject *xpathObj;
|
|
xmlNode *node;
|
|
const char *xpath_idp = "/md:EntityDescriptor/md:IDPDescriptor";
|
|
const char *xpath_sp = "/md:EntityDescriptor/md:SPDescriptor";
|
|
const char *xpath_organization = "/md:EntityDescriptor/md:Organization";
|
|
xmlChar *providerID = NULL;
|
|
|
|
g_return_val_if_fail(LASSO_IS_PROVIDER(provider), FALSE);
|
|
if (doc == NULL) {
|
|
return FALSE;
|
|
}
|
|
|
|
node = xmlDocGetRootElement(doc);
|
|
if (node == NULL || node->ns == NULL) {
|
|
message (G_LOG_LEVEL_CRITICAL, "lasso_provider_load_metadata_from_doc: no root element");
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
if (strcmp((char*)node->ns->href, LASSO_SAML2_METADATA_HREF) == 0) {
|
|
gboolean result;
|
|
provider->private_data->conformance = LASSO_PROTOCOL_SAML_2_0;
|
|
result = lasso_saml20_provider_load_metadata(provider, node);
|
|
return result;
|
|
}
|
|
|
|
provider->private_data->conformance = LASSO_PROTOCOL_LIBERTY_1_2;
|
|
|
|
xpathCtx = xmlXPathNewContext(doc);
|
|
xmlXPathRegisterNs(xpathCtx, (xmlChar*)"md", (xmlChar*)LASSO_METADATA_HREF);
|
|
xpathObj = xmlXPathEvalExpression((xmlChar*)"/md:EntityDescriptor", xpathCtx);
|
|
/* if empty: not a ID-FF 1.2 metadata file -> bails out */
|
|
if (xpathObj->nodesetval == NULL || xpathObj->nodesetval->nodeNr == 0) {
|
|
xmlXPathFreeObject(xpathObj);
|
|
xmlXPathRegisterNs(xpathCtx, (xmlChar*)"md11",
|
|
(xmlChar*)"http://projectliberty.org/schemas/core/2002/12");
|
|
xpathObj = xmlXPathEvalExpression(
|
|
(xmlChar*)"/md11:SPDescriptor|/md11:IDPDescriptor", xpathCtx);
|
|
if (xpathObj->nodesetval == NULL || xpathObj->nodesetval->nodeNr == 0) {
|
|
message (G_LOG_LEVEL_CRITICAL, "lasso_saml20_provider_load_metadata_from_doc: no md12:EntityDescriptor or md11:SPDesriptor or md11:IDPDescriptor");
|
|
xmlXPathFreeObject(xpathObj);
|
|
xmlXPathFreeContext(xpathCtx);
|
|
return FALSE;
|
|
}
|
|
provider->private_data->conformance = LASSO_PROTOCOL_LIBERTY_1_1;
|
|
xpath_idp = "/md11:IDPDescriptor";
|
|
xpath_sp = "/md11:SPDescriptor";
|
|
}
|
|
node = xpathObj->nodesetval->nodeTab[0];
|
|
providerID = xmlGetProp(node, (xmlChar*)"providerID");
|
|
lasso_assign_string(provider->ProviderID, (char*)providerID);
|
|
lasso_release_xml_string(providerID);
|
|
xmlXPathFreeObject(xpathObj);
|
|
|
|
xpathObj = xmlXPathEvalExpression((xmlChar*)xpath_idp, xpathCtx);
|
|
if (xpathObj && xpathObj->nodesetval && xpathObj->nodesetval->nodeNr == 1) {
|
|
load_descriptor(xpathObj->nodesetval->nodeTab[0],
|
|
provider->private_data->IDPDescriptor, provider);
|
|
if (provider->private_data->conformance < LASSO_PROTOCOL_LIBERTY_1_2) {
|
|
/* lookup ProviderID */
|
|
node = xpathObj->nodesetval->nodeTab[0]->children;
|
|
while (node) {
|
|
if (strcmp((char*)node->name, "ProviderID") == 0) {
|
|
providerID = xmlNodeGetContent(node);
|
|
lasso_assign_string(provider->ProviderID, (char*)providerID);
|
|
lasso_release_xml_string(providerID);
|
|
break;
|
|
}
|
|
node = node->next;
|
|
}
|
|
}
|
|
}
|
|
xmlXPathFreeObject(xpathObj);
|
|
|
|
xpathObj = xmlXPathEvalExpression((xmlChar*)xpath_sp, xpathCtx);
|
|
if (xpathObj && xpathObj->nodesetval && xpathObj->nodesetval->nodeNr == 1) {
|
|
load_descriptor(xpathObj->nodesetval->nodeTab[0],
|
|
provider->private_data->SPDescriptor, provider);
|
|
if (provider->private_data->conformance < LASSO_PROTOCOL_LIBERTY_1_2) {
|
|
/* lookup ProviderID */
|
|
node = xpathObj->nodesetval->nodeTab[0]->children;
|
|
while (node) {
|
|
if (strcmp((char*)node->name, "ProviderID") == 0) {
|
|
providerID = xmlNodeGetContent(node);
|
|
lasso_assign_string(provider->ProviderID, (char*)providerID);
|
|
lasso_release_xml_string(providerID);
|
|
break;
|
|
}
|
|
node = node->next;
|
|
}
|
|
}
|
|
}
|
|
xmlXPathFreeObject(xpathObj);
|
|
|
|
xpathObj = xmlXPathEvalExpression((xmlChar*)xpath_organization, xpathCtx);
|
|
if (xpathObj && xpathObj->nodesetval && xpathObj->nodesetval->nodeNr == 1) {
|
|
lasso_assign_xml_node(provider->private_data->organization,
|
|
xpathObj->nodesetval->nodeTab[0]);
|
|
}
|
|
xmlXPathFreeObject(xpathObj);
|
|
|
|
xmlXPathFreeContext(xpathCtx);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* lasso_provider_new_helper:
|
|
*
|
|
* Helper function for the two other constructors, lasso_provider_new and lasso_provider_new_from_buffer.
|
|
* Help to factorize common code.
|
|
*/
|
|
static LassoProvider*
|
|
lasso_provider_new_helper(LassoProviderRole role, const char *metadata,
|
|
const char *public_key, const char *ca_cert_chain, gboolean (*loader)(LassoProvider *provider, const gchar *metadata))
|
|
{
|
|
LassoProvider *provider;
|
|
|
|
provider = LASSO_PROVIDER(g_object_new(LASSO_TYPE_PROVIDER, NULL));
|
|
provider->role = role;
|
|
if (loader(provider, metadata) == FALSE) {
|
|
message(G_LOG_LEVEL_CRITICAL, "Failed to load metadata from %s.", metadata);
|
|
lasso_node_destroy(LASSO_NODE(provider));
|
|
return NULL;
|
|
}
|
|
|
|
provider->public_key = g_strdup(public_key);
|
|
provider->ca_cert_chain = g_strdup(ca_cert_chain);
|
|
|
|
if (lasso_provider_load_public_key(provider, LASSO_PUBLIC_KEY_SIGNING) == FALSE) {
|
|
message(G_LOG_LEVEL_CRITICAL, "Failed to load signing public key for %s.",
|
|
provider->ProviderID);
|
|
lasso_node_destroy(LASSO_NODE(provider));
|
|
return NULL;
|
|
}
|
|
|
|
lasso_provider_load_public_key(provider, LASSO_PUBLIC_KEY_ENCRYPTION);
|
|
|
|
provider->private_data->encryption_mode = LASSO_ENCRYPTION_MODE_NONE;
|
|
|
|
return provider;
|
|
}
|
|
/**
|
|
* lasso_provider_new:
|
|
* @role: provider role, identity provider or service provider
|
|
* @metadata: path to the provider metadata file
|
|
* @public_key: path to the provider public key file (may be a certificate) or NULL
|
|
* @ca_cert_chain: path to the provider CA certificate chain file or NULL
|
|
*
|
|
* Creates a new #LassoProvider.
|
|
*
|
|
* Return value: a newly created #LassoProvider; or NULL if an error occured
|
|
*/
|
|
LassoProvider*
|
|
lasso_provider_new(LassoProviderRole role, const char *metadata,
|
|
const char *public_key, const char *ca_cert_chain)
|
|
{
|
|
return lasso_provider_new_helper(role, metadata, public_key, ca_cert_chain,
|
|
lasso_provider_load_metadata);
|
|
}
|
|
|
|
/**
|
|
* lasso_provider_new_from_buffer:
|
|
* @role: provider role, identity provider or service provider
|
|
* @metadata: string buffer containing a metadata file
|
|
* @public_key: path to the provider public key file (may be a certificate) or NULL
|
|
* @ca_cert_chain: path to the provider CA certificate chain file or NULL
|
|
*
|
|
* Creates a new #LassoProvider.
|
|
*
|
|
* Return value: a newly created #LassoProvider; or NULL if an error occured
|
|
*/
|
|
LassoProvider*
|
|
lasso_provider_new_from_buffer(LassoProviderRole role, const char *metadata,
|
|
const char *public_key, const char *ca_cert_chain)
|
|
{
|
|
return lasso_provider_new_helper(role, metadata, public_key, ca_cert_chain,
|
|
lasso_provider_load_metadata_from_buffer);
|
|
}
|
|
|
|
gboolean
|
|
lasso_provider_load_public_key(LassoProvider *provider, LassoPublicKeyType public_key_type)
|
|
{
|
|
LassoPemFileType file_type;
|
|
gchar *public_key = NULL;
|
|
xmlNode *key_descriptor = NULL;
|
|
xmlSecKey *pub_key = NULL;
|
|
xmlSecKeyDataFormat key_formats[] = {
|
|
xmlSecKeyDataFormatDer,
|
|
xmlSecKeyDataFormatCertDer,
|
|
xmlSecKeyDataFormatPkcs8Der,
|
|
xmlSecKeyDataFormatCertPem,
|
|
xmlSecKeyDataFormatPkcs8Pem,
|
|
xmlSecKeyDataFormatPem,
|
|
xmlSecKeyDataFormatBinary,
|
|
0
|
|
};
|
|
int i;
|
|
|
|
g_return_val_if_fail(LASSO_IS_PROVIDER(provider), FALSE);
|
|
if (public_key_type == LASSO_PUBLIC_KEY_SIGNING) {
|
|
public_key = provider->public_key;
|
|
key_descriptor = provider->private_data->signing_key_descriptor;
|
|
} else {
|
|
key_descriptor = provider->private_data->encryption_key_descriptor;
|
|
}
|
|
|
|
if (public_key == NULL && key_descriptor == NULL) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (public_key == NULL) {
|
|
xmlNode *t = key_descriptor->children;
|
|
xmlChar *b64_value;
|
|
xmlSecByte *value;
|
|
int length;
|
|
int rc = 0;
|
|
|
|
/* could use XPath but going down manually will do */
|
|
while (t) {
|
|
if (t->type == XML_ELEMENT_NODE) {
|
|
if (strcmp((char*)t->name, "KeyInfo") == 0 ||
|
|
strcmp((char*)t->name, "X509Data") == 0) {
|
|
t = t->children;
|
|
continue;
|
|
}
|
|
if (strcmp((char*)t->name, "X509Certificate") == 0)
|
|
break;
|
|
if (strcmp((char*)t->name, "KeyValue") == 0)
|
|
break;
|
|
}
|
|
t = t->next;
|
|
}
|
|
if (t == NULL) {
|
|
return FALSE;
|
|
}
|
|
|
|
b64_value = xmlNodeGetContent(t);
|
|
if (public_key_type == LASSO_PUBLIC_KEY_ENCRYPTION) {
|
|
provider->private_data->encryption_public_key_str =
|
|
g_strdup((char*)b64_value);
|
|
}
|
|
length = strlen((char*)b64_value);
|
|
value = g_malloc(length);
|
|
xmlSecErrorsDefaultCallbackEnableOutput(FALSE);
|
|
rc = xmlSecBase64Decode(b64_value, value, length);
|
|
if (rc < 0) {
|
|
/* bad base-64 */
|
|
g_free(value);
|
|
value = (xmlSecByte*)g_strdup((char*)b64_value);
|
|
rc = strlen((char*)value);
|
|
}
|
|
|
|
for (i=0; key_formats[i] && pub_key == NULL; i++) {
|
|
pub_key = xmlSecCryptoAppKeyLoadMemory(value, rc,
|
|
key_formats[i], NULL, NULL, NULL);
|
|
}
|
|
xmlSecErrorsDefaultCallbackEnableOutput(TRUE);
|
|
xmlFree(b64_value);
|
|
g_free(value);
|
|
|
|
if (public_key_type == LASSO_PUBLIC_KEY_SIGNING) {
|
|
lasso_assign_new_sec_key(provider->private_data->public_key, pub_key);
|
|
} else {
|
|
lasso_assign_new_sec_key(provider->private_data->encryption_public_key, pub_key);
|
|
}
|
|
|
|
if (pub_key) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
if (public_key_type == LASSO_PUBLIC_KEY_ENCRYPTION) {
|
|
/* encryption public key can never be set by filename */
|
|
return FALSE;
|
|
}
|
|
|
|
file_type = lasso_get_pem_file_type(public_key);
|
|
switch (file_type) {
|
|
case LASSO_PEM_FILE_TYPE_UNKNOWN:
|
|
break; /* with a warning ? */
|
|
case LASSO_PEM_FILE_TYPE_CERT:
|
|
pub_key = lasso_get_public_key_from_pem_cert_file(public_key);
|
|
break;
|
|
case LASSO_PEM_FILE_TYPE_PUB_KEY:
|
|
pub_key = xmlSecCryptoAppKeyLoad(public_key,
|
|
xmlSecKeyDataFormatPem, NULL, NULL, NULL);
|
|
break;
|
|
case LASSO_PEM_FILE_TYPE_PRIVATE_KEY:
|
|
break; /* with a warning ? */
|
|
}
|
|
|
|
lasso_assign_new_sec_key(provider->private_data->public_key, pub_key);
|
|
|
|
return (pub_key != NULL);
|
|
}
|
|
|
|
|
|
/**
|
|
* lasso_provider_new_from_dump:
|
|
* @dump: XML provider dump
|
|
*
|
|
* Restores the @dump to a new #LassoProvider.
|
|
*
|
|
* Return value: a newly created #LassoProvider; or NULL if an error occured.
|
|
**/
|
|
LassoProvider*
|
|
lasso_provider_new_from_dump(const gchar *dump)
|
|
{
|
|
LassoProvider *provider;
|
|
xmlDoc *doc;
|
|
|
|
if (dump == NULL)
|
|
return NULL;
|
|
|
|
provider = g_object_new(LASSO_TYPE_PROVIDER, NULL);
|
|
doc = lasso_xml_parse_memory(dump, strlen(dump));
|
|
init_from_xml(LASSO_NODE(provider), xmlDocGetRootElement(doc));
|
|
lasso_release_doc(doc);
|
|
|
|
return provider;
|
|
}
|
|
|
|
int
|
|
lasso_provider_verify_saml_signature(LassoProvider *provider,
|
|
xmlNode *signed_node, xmlDoc *doc)
|
|
{
|
|
const char *id_attribute_name = NULL;
|
|
const xmlChar *node_ns = NULL;
|
|
xmlSecKey *public_key = NULL;
|
|
xmlSecKeysMngr *keys_manager = NULL;
|
|
int rc = 0;
|
|
|
|
lasso_bad_param(PROVIDER, provider);
|
|
lasso_null_param(signed_node);
|
|
g_return_val_if_fail((signed_node->doc && doc) || ! signed_node->doc, LASSO_PARAM_ERROR_INVALID_VALUE);
|
|
|
|
/* ID-FF 1.2 Signatures case */
|
|
if (xmlSecCheckNodeName(signed_node, (xmlChar*)"Request", (xmlChar*)LASSO_SAML_PROTOCOL_HREF)) {
|
|
id_attribute_name = "RequestID";
|
|
}
|
|
if (xmlSecCheckNodeName(signed_node, (xmlChar*)"Response", (xmlChar*)LASSO_SAML_PROTOCOL_HREF)) {
|
|
id_attribute_name = "ResponseID";
|
|
}
|
|
if (xmlSecCheckNodeName(signed_node, (xmlChar*)"Assertion", (xmlChar*)LASSO_SAML_ASSERTION_HREF)) {
|
|
id_attribute_name = "AssertionID";
|
|
}
|
|
/* SAML 2.0 signature case */
|
|
node_ns = xmlSecGetNodeNsHref(signed_node);
|
|
if ((strcmp((char*)node_ns, LASSO_SAML2_PROTOCOL_HREF) == 0) ||
|
|
(strcmp((char*)node_ns, LASSO_SAML2_ASSERTION_HREF) == 0)) {
|
|
id_attribute_name = "ID";
|
|
}
|
|
goto_cleanup_if_fail_with_rc(id_attribute_name, LASSO_PARAM_ERROR_INVALID_VALUE);
|
|
/* Get provider credentials */
|
|
public_key = lasso_provider_get_public_key(provider);
|
|
keys_manager = lasso_load_certs_from_pem_certs_chain_file(provider->ca_cert_chain);
|
|
goto_cleanup_if_fail_with_rc_with_warning(public_key || keys_manager,
|
|
LASSO_DS_ERROR_PUBLIC_KEY_LOAD_FAILED);
|
|
rc = lasso_verify_signature(signed_node, doc, id_attribute_name, keys_manager, public_key,
|
|
NO_OPTION, NULL);
|
|
lasso_release_key_manager(keys_manager);
|
|
cleanup:
|
|
lasso_release_key_manager(keys_manager);
|
|
return rc;
|
|
}
|
|
|
|
int
|
|
lasso_provider_verify_signature(LassoProvider *provider,
|
|
const char *message, const char *id_attr_name, LassoMessageFormat format)
|
|
{
|
|
/* this duplicates some code from lasso_node_init_from_message;
|
|
* reflection about code reuse is under way...
|
|
*/
|
|
char *msg = NULL;
|
|
xmlDoc *doc = NULL;
|
|
xmlNode *xmlnode = NULL, *sign = NULL, *x509data = NULL;
|
|
xmlSecKeysMngr *keys_mngr = NULL;
|
|
xmlSecDSigCtx *dsigCtx = NULL;
|
|
int rc = 0;
|
|
xmlXPathContext *xpathCtx = NULL;
|
|
xmlXPathObject *xpathObj = NULL;
|
|
|
|
g_return_val_if_fail(LASSO_IS_PROVIDER(provider), LASSO_PARAM_ERROR_BAD_TYPE_OR_NULL_OBJ);
|
|
|
|
if (lasso_flag_verify_signature == FALSE)
|
|
return 0;
|
|
|
|
msg = (char*)message;
|
|
if (message == NULL)
|
|
return LASSO_PROFILE_ERROR_INVALID_MSG;
|
|
|
|
if (format == LASSO_MESSAGE_FORMAT_ERROR)
|
|
return LASSO_PROFILE_ERROR_INVALID_MSG;
|
|
if (format == LASSO_MESSAGE_FORMAT_UNKNOWN)
|
|
return LASSO_PROFILE_ERROR_INVALID_MSG;
|
|
|
|
if (format == LASSO_MESSAGE_FORMAT_QUERY) {
|
|
return lasso_query_verify_signature(message,
|
|
lasso_provider_get_public_key(provider));
|
|
}
|
|
|
|
if (format == LASSO_MESSAGE_FORMAT_BASE64) {
|
|
int len;
|
|
msg = g_malloc(strlen(message));
|
|
len = xmlSecBase64Decode((xmlChar*)message, (xmlChar*)msg, strlen(message));
|
|
if (len < 0) {
|
|
goto_cleanup_with_rc(LASSO_PROFILE_ERROR_INVALID_MSG);
|
|
}
|
|
doc = lasso_xml_parse_memory(msg, strlen(msg));
|
|
} else {
|
|
doc = lasso_xml_parse_memory(msg, strlen(msg));
|
|
msg = NULL;
|
|
}
|
|
|
|
if (format == LASSO_MESSAGE_FORMAT_SOAP) {
|
|
xpathCtx = xmlXPathNewContext(doc);
|
|
xmlXPathRegisterNs(xpathCtx, (xmlChar*)"s", (xmlChar*)LASSO_SOAP_ENV_HREF);
|
|
xpathObj = xmlXPathEvalExpression((xmlChar*)"//s:Body/*", xpathCtx);
|
|
if (xpathObj->nodesetval && xpathObj->nodesetval->nodeNr ) {
|
|
xmlnode = xpathObj->nodesetval->nodeTab[0];
|
|
}
|
|
goto_cleanup_if_fail_with_rc (xmlnode != NULL, LASSO_PROFILE_ERROR_INVALID_MSG);
|
|
} else {
|
|
xmlnode = xmlDocGetRootElement(doc);
|
|
}
|
|
|
|
|
|
sign = NULL;
|
|
for (sign = xmlnode->children; sign; sign = sign->next) {
|
|
if (strcmp((char*)sign->name, "Signature") == 0)
|
|
break;
|
|
}
|
|
|
|
/* If no signature was found, look for one in assertion */
|
|
if (sign == NULL) {
|
|
for (sign = xmlnode->children; sign; sign = sign->next) {
|
|
if (strcmp((char*)sign->name, "Assertion") == 0)
|
|
break;
|
|
}
|
|
if (sign != NULL) {
|
|
xmlnode = sign;
|
|
for (sign = xmlnode->children; sign; sign = sign->next) {
|
|
if (strcmp((char*)sign->name, "Signature") == 0)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
goto_cleanup_if_fail_with_rc (sign != NULL, LASSO_DS_ERROR_SIGNATURE_NOT_FOUND);
|
|
|
|
if (id_attr_name) {
|
|
xmlChar *id_value = xmlGetProp(xmlnode, (xmlChar*)id_attr_name);
|
|
xmlAttr *id_attr = xmlHasProp(xmlnode, (xmlChar*)id_attr_name);
|
|
if (id_value != NULL) {
|
|
xmlAddID(NULL, doc, id_value, id_attr);
|
|
xmlFree(id_value);
|
|
}
|
|
}
|
|
|
|
x509data = xmlSecFindNode(xmlnode, xmlSecNodeX509Data, xmlSecDSigNs);
|
|
if (x509data != NULL && provider->ca_cert_chain != NULL) {
|
|
keys_mngr = lasso_load_certs_from_pem_certs_chain_file(
|
|
provider->ca_cert_chain);
|
|
goto_cleanup_if_fail_with_rc (keys_mngr != NULL, LASSO_DS_ERROR_CA_CERT_CHAIN_LOAD_FAILED);
|
|
}
|
|
|
|
dsigCtx = xmlSecDSigCtxCreate(keys_mngr);
|
|
if (keys_mngr == NULL) {
|
|
dsigCtx->signKey = xmlSecKeyDuplicate(lasso_provider_get_public_key(provider));
|
|
goto_cleanup_if_fail_with_rc (dsigCtx->signKey != NULL, LASSO_DS_ERROR_PUBLIC_KEY_LOAD_FAILED);
|
|
}
|
|
|
|
goto_cleanup_if_fail_with_rc (xmlSecDSigCtxVerify(dsigCtx, sign) >= 0, LASSO_DS_ERROR_SIGNATURE_VERIFICATION_FAILED);
|
|
|
|
if (dsigCtx->status != xmlSecDSigStatusSucceeded) {
|
|
rc = LASSO_DS_ERROR_INVALID_SIGNATURE;
|
|
goto cleanup;
|
|
}
|
|
|
|
cleanup:
|
|
lasso_release_string(msg);
|
|
lasso_release_key_manager(keys_mngr);
|
|
lasso_release_signature_context(dsigCtx);
|
|
if (xpathCtx)
|
|
xmlXPathFreeContext(xpathCtx);
|
|
if (xpathObj)
|
|
xmlXPathFreeObject(xpathObj);
|
|
lasso_release_doc(doc);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lasso_provider_set_encryption_mode:
|
|
* @provider: provider to set encryption for
|
|
* @encryption_mode: TRUE to activate, FALSE to desactivate
|
|
*
|
|
* Activate or desactivate encryption
|
|
**/
|
|
void
|
|
lasso_provider_set_encryption_mode(LassoProvider *provider, LassoEncryptionMode encryption_mode)
|
|
{
|
|
g_return_if_fail(LASSO_IS_PROVIDER(provider));
|
|
provider->private_data->encryption_mode = encryption_mode;
|
|
}
|
|
|
|
/**
|
|
* lasso_provider_set_encryption_sym_key_type:
|
|
* @provider: provider to set encryption for
|
|
* @encryption_sym_key_type: enum type for generated symetric key
|
|
*
|
|
* Set the type of the generated encryption symetric key
|
|
**/
|
|
void
|
|
lasso_provider_set_encryption_sym_key_type(LassoProvider *provider,
|
|
LassoEncryptionSymKeyType encryption_sym_key_type)
|
|
{
|
|
g_return_if_fail(LASSO_IS_PROVIDER(provider));
|
|
provider->private_data->encryption_sym_key_type = encryption_sym_key_type;
|
|
}
|
|
|
|
/**
|
|
* lasso_provider_verify_query_signature:
|
|
* @provider: the #LassoProvider for the the provider issuing the query
|
|
* @message: the URL query string UTF-8 encoded
|
|
*
|
|
* Retrieve the public key of the given provider and verify the signature of the query string.
|
|
*
|
|
* Return value: 0 if succesfull,
|
|
* LASSO_PROVIDER_ERROR_MISSING_PUBLIC_KEY if no public key is set for this provider,
|
|
* LASSO_DS_ERROR_INVALID_SIGNATURE if signature is invalid,
|
|
* LASSO_DS_ERROR_SIGNATURE_NOT_FOUND if no signature is found,
|
|
* LASSO_DS_ERROR_PUBLIC_KEY_LOAD_FAILED if the key cannot be loaded
|
|
*/
|
|
int
|
|
lasso_provider_verify_query_signature(LassoProvider *provider, const char *message)
|
|
{
|
|
const xmlSecKey *provider_public_key;
|
|
|
|
lasso_bad_param(PROVIDER, provider);
|
|
provider_public_key = lasso_provider_get_public_key(provider);
|
|
g_return_val_if_fail(provider_public_key, LASSO_PROVIDER_ERROR_MISSING_PUBLIC_KEY);
|
|
|
|
return lasso_query_verify_signature(message, provider_public_key);
|
|
}
|
|
|