447 lines
15 KiB
C
447 lines
15 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, 2005 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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#include <lasso/id-ff/defederation.h>
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#include <lasso/id-ff/providerprivate.h>
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#include <lasso/id-ff/sessionprivate.h>
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/*****************************************************************************/
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/* public methods */
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/*****************************************************************************/
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/**
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* lasso_defederation_build_notification_msg:
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* @defederation: a #LassoDefederation
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*
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* Builds the federation termination notification message.
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*
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* It gets the federation termination notification protocol profile and:
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* <itemizedlist>
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* <listitem><para>
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* if it is a SOAP method, then it builds the federation termination
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* notification SOAP message, optionally signs the notification node, sets
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* @msg_body, gets the SoapEndpoint url and sets @msg_url of the federation
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* termination object.
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* </para></listitem>
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* <listitem><para>
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* if it is a HTTP-Redirect method, then it builds the federation termination
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* notification QUERY message (optionally signs the notification message),
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* builds the federation termination notification url with federation
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* termination service url, sets @msg_url in the federation termination
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* object, sets @msg_body to NULL.
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* </para></listitem>
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* </itemizedlist>
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*
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* Return value: 0 on success; or a negative value otherwise.
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**/
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gint
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lasso_defederation_build_notification_msg(LassoDefederation *defederation)
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{
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LassoProfile *profile;
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LassoProvider *remote_provider;
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gchar *url, *query;
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g_return_val_if_fail(LASSO_IS_DEFEDERATION(defederation),
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LASSO_PARAM_ERROR_BAD_TYPE_OR_NULL_OBJ);
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profile = LASSO_PROFILE(defederation);
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/* get the remote provider object */
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remote_provider = g_hash_table_lookup(profile->server->providers,
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profile->remote_providerID);
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if (LASSO_IS_PROVIDER(remote_provider) == FALSE) {
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return critical_error(LASSO_SERVER_ERROR_PROVIDER_NOT_FOUND,
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profile->remote_providerID);
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}
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/* get the protocol profile type */
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/* build the federation termination notification message (SOAP or HTTP-Redirect) */
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if (profile->http_request_method == LASSO_HTTP_METHOD_SOAP) {
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/* build the logout request message */
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profile->msg_url = lasso_provider_get_metadata_one(
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remote_provider, "SoapEndpoint");
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profile->request->private_key_file = profile->server->private_key;
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profile->request->certificate_file = profile->server->certificate;
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profile->msg_body = lasso_node_export_to_soap(LASSO_NODE(profile->request));
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return 0;
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}
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if (profile->http_request_method == LASSO_HTTP_METHOD_REDIRECT) {
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/* build and optionally sign the query message and build the
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* federation termination notification url */
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url = lasso_provider_get_metadata_one(remote_provider,
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"FederationTerminationServiceURL");
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if (url == NULL) {
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return critical_error(LASSO_PROFILE_ERROR_UNKNOWN_PROFILE_URL);
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}
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query = lasso_node_export_to_query(LASSO_NODE(profile->request),
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profile->server->signature_method,
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profile->server->private_key);
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if (query == NULL) {
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g_free(url);
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return critical_error(LASSO_PROFILE_ERROR_BUILDING_QUERY_FAILED);
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}
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profile->msg_url = g_strdup_printf("%s?%s", url, query);
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profile->msg_body = NULL;
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g_free(url);
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g_free(query);
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return 0;
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}
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return critical_error(LASSO_PROFILE_ERROR_INVALID_HTTP_METHOD);
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}
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/**
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* lasso_defederation_destroy:
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* @defederation: a #LassoDefederation
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*
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* Destroys a #LassoDefederation object.
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**/
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void
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lasso_defederation_destroy(LassoDefederation *defederation)
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{
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g_object_unref(G_OBJECT(defederation));
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}
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/**
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* lasso_defederation_init_notification:
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* @defederation: a #LassoDefederation
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* @remote_providerID: the provider id of the federation termination notified
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* provider.
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* @http_method: the HTTP method to send the message.
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*
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* Sets a new federation termination notification to the remote provider id
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* with the provider id of the requester (from the server object) and the name
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* identifier of the federated principal.
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*
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* Return value: 0 on success; or a negative value otherwise.
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**/
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gint
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lasso_defederation_init_notification(LassoDefederation *defederation, gchar *remote_providerID,
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LassoHttpMethod http_method)
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{
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LassoProfile*profile;
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LassoProvider *remote_provider;
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LassoFederation *federation;
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LassoSamlNameIdentifier *nameIdentifier;
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g_return_val_if_fail(LASSO_IS_DEFEDERATION(defederation),
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LASSO_PARAM_ERROR_BAD_TYPE_OR_NULL_OBJ);
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if (remote_providerID == NULL) {
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return critical_error(LASSO_PROFILE_ERROR_MISSING_REMOTE_PROVIDERID);
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}
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profile = LASSO_PROFILE(defederation);
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/* set the remote provider id */
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profile->remote_providerID = g_strdup(remote_providerID);
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remote_provider = g_hash_table_lookup(
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profile->server->providers, profile->remote_providerID);
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if (LASSO_IS_PROVIDER(remote_provider) == FALSE) {
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return critical_error(LASSO_SERVER_ERROR_PROVIDER_NOT_FOUND,
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profile->remote_providerID);
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}
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/* get federation */
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federation = g_hash_table_lookup(profile->identity->federations,
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profile->remote_providerID);
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if (federation == NULL) {
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return critical_error(LASSO_PROFILE_ERROR_FEDERATION_NOT_FOUND);
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}
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/* get the nameIdentifier to send the federation termination notification */
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nameIdentifier = lasso_profile_get_nameIdentifier(profile);
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if (nameIdentifier == NULL) {
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return critical_error(LASSO_PROFILE_ERROR_NAME_IDENTIFIER_NOT_FOUND);
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}
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/* get / verify http method */
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if (http_method == LASSO_HTTP_METHOD_ANY) {
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http_method = lasso_provider_get_first_http_method(
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LASSO_PROVIDER(profile->server),
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remote_provider,
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LASSO_MD_PROTOCOL_TYPE_FEDERATION_TERMINATION);
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} else {
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if (lasso_provider_accept_http_method(LASSO_PROVIDER(profile->server),
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remote_provider,
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LASSO_MD_PROTOCOL_TYPE_FEDERATION_TERMINATION,
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http_method,
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TRUE) == FALSE) {
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return critical_error(LASSO_PROFILE_ERROR_UNSUPPORTED_PROFILE);
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}
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}
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/* build the request */
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if (http_method == LASSO_HTTP_METHOD_SOAP) {
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profile->request = lasso_lib_federation_termination_notification_new_full(
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LASSO_PROVIDER(profile->server)->ProviderID,
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nameIdentifier,
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LASSO_SIGNATURE_TYPE_WITHX509,
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LASSO_SIGNATURE_METHOD_RSA_SHA1);
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if (profile->msg_relayState) {
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message(G_LOG_LEVEL_WARNING,
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"RelayState was defined but can't be used "\
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"in SOAP Federation Termination Notification");
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}
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} else { /* LASSO_HTTP_METHOD_REDIRECT */
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profile->request = lasso_lib_federation_termination_notification_new_full(
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LASSO_PROVIDER(profile->server)->ProviderID,
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nameIdentifier,
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LASSO_SIGNATURE_TYPE_NONE,
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0);
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LASSO_LIB_FEDERATION_TERMINATION_NOTIFICATION(profile->request)->RelayState =
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g_strdup(profile->msg_relayState);
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}
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/* Set the nameIdentifier attribute from content local variable */
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profile->nameIdentifier = g_object_ref(nameIdentifier);
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/* remove federation with remote provider id */
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if (profile->identity == NULL) {
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return critical_error(LASSO_PROFILE_ERROR_IDENTITY_NOT_FOUND);
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}
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lasso_identity_remove_federation(profile->identity, profile->remote_providerID);
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/* remove assertion from session */
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if (profile->session)
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lasso_session_remove_assertion(profile->session, profile->remote_providerID);
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/* Save notification method */
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profile->http_request_method = http_method;
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return 0;
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}
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/**
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* lasso_defederation_process_notification_msg:
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* @defederation: the federation termination object
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* @notification_msg: the federation termination notification message
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*
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* Processes a lib:FederationTerminationNotification message. Rebuilds a
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* request object from the message and optionally verifies its signature.
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*
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* Set the msg_nameIdentifier attribute with the NameIdentifier content of the
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* notification object and optionally set the msg_relayState attribute with the
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* RelayState content of the notification object.
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*
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* Return value: 0 on success; or a negative value otherwise.
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**/
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gint
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lasso_defederation_process_notification_msg(LassoDefederation *defederation, char *request_msg)
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{
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LassoProfile *profile;
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LassoProvider *remote_provider;
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LassoMessageFormat format;
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g_return_val_if_fail(LASSO_IS_DEFEDERATION(defederation),
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LASSO_PARAM_ERROR_BAD_TYPE_OR_NULL_OBJ);
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g_return_val_if_fail(request_msg != NULL, LASSO_PARAM_ERROR_BAD_TYPE_OR_NULL_OBJ);
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profile = LASSO_PROFILE(defederation);
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profile->request = lasso_lib_federation_termination_notification_new();
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format = lasso_node_init_from_message(LASSO_NODE(profile->request), request_msg);
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if (format == LASSO_MESSAGE_FORMAT_UNKNOWN || format == LASSO_MESSAGE_FORMAT_ERROR) {
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return critical_error(LASSO_PROFILE_ERROR_INVALID_MSG);
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}
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profile->remote_providerID = g_strdup(LASSO_LIB_FEDERATION_TERMINATION_NOTIFICATION(
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profile->request)->ProviderID);
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remote_provider = g_hash_table_lookup(profile->server->providers,
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profile->remote_providerID);
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if (LASSO_IS_PROVIDER(remote_provider) == FALSE) {
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return critical_error(LASSO_SERVER_ERROR_PROVIDER_NOT_FOUND,
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profile->remote_providerID);
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}
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profile->signature_status = lasso_provider_verify_signature(
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remote_provider, request_msg, "RequestID", format);
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/* set the http request method */
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if (format == LASSO_MESSAGE_FORMAT_SOAP)
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profile->http_request_method = LASSO_HTTP_METHOD_SOAP;
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if (format == LASSO_MESSAGE_FORMAT_QUERY)
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profile->http_request_method = LASSO_HTTP_METHOD_REDIRECT;
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profile->nameIdentifier = g_object_ref(LASSO_LIB_FEDERATION_TERMINATION_NOTIFICATION(
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profile->request)->NameIdentifier);
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/* get the RelayState (only available in redirect mode) */
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if (LASSO_LIB_FEDERATION_TERMINATION_NOTIFICATION(profile->request)->RelayState)
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profile->msg_relayState = g_strdup(
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LASSO_LIB_FEDERATION_TERMINATION_NOTIFICATION(
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profile->request)->RelayState);
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return profile->signature_status;
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}
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/**
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* lasso_defederation_validate_notification:
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* @defederation: a #LassoDefederation
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*
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* Checks notification with regards to message status and principal
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* federations; update them accordingly.
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*
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* Return value: 0 on success; or a negative value otherwise.
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**/
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gint
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lasso_defederation_validate_notification(LassoDefederation *defederation)
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{
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LassoProfile *profile;
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LassoProvider *remote_provider;
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LassoFederation *federation = NULL;
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LassoSamlNameIdentifier *nameIdentifier;
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g_return_val_if_fail(LASSO_IS_DEFEDERATION(defederation),
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LASSO_PARAM_ERROR_BAD_TYPE_OR_NULL_OBJ);
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profile = LASSO_PROFILE(defederation);
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/* verify the federation termination notification */
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if (LASSO_IS_LIB_FEDERATION_TERMINATION_NOTIFICATION(profile->request) == FALSE)
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return LASSO_PROFILE_ERROR_MISSING_REQUEST;
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/* If SOAP notification, then msg_url and msg_body are NULL */
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/* if HTTP-Redirect notification, set msg_url with the federation
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* termination service return url, and set msg_body to NULL */
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profile->msg_url = NULL;
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profile->msg_body = NULL;
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if (profile->http_request_method == LASSO_HTTP_METHOD_REDIRECT) {
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remote_provider = g_hash_table_lookup(profile->server->providers,
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profile->remote_providerID);
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if (LASSO_IS_PROVIDER(remote_provider) == FALSE) {
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return critical_error(LASSO_SERVER_ERROR_PROVIDER_NOT_FOUND,
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profile->remote_providerID);
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}
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/* build the QUERY and the url. Dont need to sign the query,
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* only the relay state is optinaly added and it is crypted
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* by the notifier */
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profile->msg_url = lasso_provider_get_metadata_one(remote_provider,
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"FederationTerminationServiceReturnURL");
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if (profile->msg_url == NULL) {
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return critical_error(LASSO_PROFILE_ERROR_UNKNOWN_PROFILE_URL);
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}
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/* if a relay state, then build the query part */
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if (profile->msg_relayState) {
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gchar *url;
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url = g_strdup_printf("%s?RelayState=%s",
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profile->msg_url, profile->msg_relayState);
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g_free(profile->msg_url);
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profile->msg_url = url;
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}
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}
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/* get the name identifier */
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nameIdentifier = LASSO_LIB_FEDERATION_TERMINATION_NOTIFICATION(
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profile->request)->NameIdentifier;
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if (nameIdentifier == NULL) {
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return critical_error(LASSO_DEFEDERATION_ERROR_MISSING_NAME_IDENTIFIER);
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}
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/* Verify federation */
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if (profile->identity == NULL) {
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return critical_error(LASSO_PROFILE_ERROR_IDENTITY_NOT_FOUND);
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}
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federation = g_hash_table_lookup(profile->identity->federations,
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profile->remote_providerID);
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if (federation == NULL) {
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return critical_error(LASSO_PROFILE_ERROR_FEDERATION_NOT_FOUND);
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}
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if (lasso_federation_verify_name_identifier(federation, nameIdentifier) == FALSE) {
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return critical_error(LASSO_PROFILE_ERROR_NAME_IDENTIFIER_NOT_FOUND);
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}
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/* remove federation of the remote provider */
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lasso_identity_remove_federation(profile->identity, profile->remote_providerID);
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/* if defederation has a session and if there is an assertion for remote provider id,
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then remove assertion too */
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if (profile->session != NULL) {
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lasso_session_remove_assertion(profile->session, profile->remote_providerID);
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}
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return 0;
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}
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/*****************************************************************************/
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/* instance and class init functions */
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/*****************************************************************************/
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GType
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lasso_defederation_get_type()
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{
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static GType this_type = 0;
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if (!this_type) {
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static const GTypeInfo this_info = {
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sizeof (LassoDefederationClass),
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NULL, NULL, NULL, NULL, NULL,
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sizeof(LassoDefederation),
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0,
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NULL,
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};
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this_type = g_type_register_static(LASSO_TYPE_PROFILE,
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"LassoDefederation", &this_info, 0);
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}
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return this_type;
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}
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/**
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* lasso_defederation_new:
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* @server: the #LassoServer
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*
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* Creates a new #LassoDefederation.
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*
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* Return value: a newly created #LassoDefederation object; or NULL if an error
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* occured
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**/
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LassoDefederation*
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lasso_defederation_new(LassoServer *server)
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{
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LassoDefederation *defederation;
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g_return_val_if_fail(LASSO_IS_SERVER(server), NULL);
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defederation = g_object_new(LASSO_TYPE_DEFEDERATION, NULL);
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LASSO_PROFILE(defederation)->server = g_object_ref(server);
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return defederation;
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}
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