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lasso/lasso/saml-2.0/name_id_management.c

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/* $Id$
*
* Lasso - A free implementation of the Liberty Alliance specifications.
*
* Copyright (C) 2004-2007 Entr'ouvert
* http://lasso.entrouvert.org
*
* Authors: See AUTHORS file in top-level directory.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "../xml/private.h"
#include "name_id_management.h"
#include "providerprivate.h"
#include "profileprivate.h"
#include "serverprivate.h"
#include "../id-ff/providerprivate.h"
#include "../id-ff/profileprivate.h"
#include "../id-ff/identityprivate.h"
#include "../id-ff/serverprivate.h"
#include "../xml/xml_enc.h"
#include "../utils.h"
#include "../xml/saml-2.0/samlp2_manage_name_id_request.h"
#include "../xml/misc_text_node.h"
/**
* SECTION:name_id_management
* @short_description: Name Id Management Profile (SAMLv2)
*
**/
/*****************************************************************************/
/* public methods */
/*****************************************************************************/
/**
* lasso_name_id_management_init_request:
* @name_id_management: a #LassoNameIdManagement
* @remote_provider_id: the providerID of the remote provider.
* @new_name_id: the new NameId or NULL to terminate a federation
* @http_method: if set, then it get the protocol profile in metadata
* corresponding of this HTTP request method.
*
* Initializes a new Name Id Management Request. If @new_name_id is NULL, it is a Termination
* request, if not and we are an IdP is a NameID change request, if we are a SP, it is a request to
* add a SP provided Id to the NameID of the IdP. It can be useful if the SP do not want to store
* the federation, instead he can export its own identifiers to the IdP.
*
* Return value: 0 on success; or a negative value otherwise.
**/
gint
lasso_name_id_management_init_request(LassoNameIdManagement *name_id_management,
char *remote_provider_id,
char *new_name_id,
LassoHttpMethod http_method)
{
LassoProfile *profile = NULL;
LassoProvider *remote_provider;
LassoSamlp2ManageNameIDRequest *manage_name_id_request = NULL;
LassoSamlp2RequestAbstract *request = NULL;
gboolean do_encrypt = FALSE;
int rc = 0;
lasso_bad_param(NAME_ID_MANAGEMENT, name_id_management);
profile = LASSO_PROFILE(name_id_management);
remote_provider = lasso_server_get_provider(profile->server, remote_provider_id);
if (! LASSO_IS_PROVIDER(remote_provider)) {
return LASSO_SERVER_ERROR_PROVIDER_NOT_FOUND;
}
request = (LassoSamlp2RequestAbstract*)lasso_samlp2_manage_name_id_request_new();
manage_name_id_request = LASSO_SAMLP2_MANAGE_NAME_ID_REQUEST(request);
lasso_check_good_rc(lasso_saml20_profile_init_request(profile, remote_provider_id, TRUE, request,
http_method, LASSO_MD_PROTOCOL_TYPE_MANAGE_NAME_ID));
lasso_assign_gobject(manage_name_id_request->NameID, (LassoSaml2NameID*)profile->nameIdentifier);
do_encrypt = (lasso_provider_get_encryption_mode(remote_provider) == LASSO_ENCRYPTION_MODE_NAMEID);
if (do_encrypt) {
/* Encrypt old nameid */
lasso_check_good_rc(lasso_saml20_profile_setup_encrypted_node(remote_provider,
(LassoNode**)&manage_name_id_request->NameID,
(LassoNode**)&manage_name_id_request->EncryptedID));
}
if (new_name_id) {
if (do_encrypt) {
LassoMiscTextNode *text_node;
text_node =
(LassoMiscTextNode*)lasso_misc_text_node_new_with_string(new_name_id);
text_node->name = "NewEncryptedID";
text_node->ns_href = LASSO_SAML2_PROTOCOL_HREF;
text_node->ns_prefix = LASSO_SAML2_PROTOCOL_PREFIX;
lasso_check_good_rc(lasso_saml20_profile_setup_encrypted_node(remote_provider,
(LassoNode**)&text_node,
(LassoNode**)&manage_name_id_request->NewEncryptedID));
lasso_release_string(manage_name_id_request->NewID);
} else {
lasso_assign_string(manage_name_id_request->NewID, new_name_id);
}
} else {
lasso_assign_new_gobject(manage_name_id_request->Terminate,
LASSO_SAMLP2_TERMINATE(lasso_samlp2_terminate_new()));
/* if we are the IdP we can apply termination immediately. */
if (profile->server->parent.role & LASSO_PROVIDER_ROLE_IDP) {
lasso_identity_remove_federation(profile->identity,
profile->remote_providerID);
}
}
cleanup:
lasso_release_gobject(request);
return rc;
}
/**
* lasso_name_id_management_build_request_msg:
* @name_id_management: a #LassoNameIdManagement
*
* Builds the Name Id Management request message.
*
* Return value: 0 on success; or a negative value otherwise.
**/
gint
lasso_name_id_management_build_request_msg(LassoNameIdManagement *name_id_management)
{
lasso_bad_param(NAME_ID_MANAGEMENT, name_id_management);
return lasso_saml20_profile_build_request_msg(&name_id_management->parent, "ManageNameIDService", name_id_management->parent.http_request_method, NULL);
}
/**
* lasso_name_id_management_process_request_msg:
* @name_id_management: a #LassoNameIdManagement
* @request_msg: the Name Id Management request message
*
* Processes a Name Id Management request message. Rebuilds a request object
* from the message and check its signature.
*
* Return value: 0 on success; or a negative value otherwise.
**/
gint
lasso_name_id_management_process_request_msg(LassoNameIdManagement *name_id_management,
char *request_msg)
{
LassoProfile *profile = NULL;
LassoSamlp2ManageNameIDRequest *request = NULL;
int rc = 0;
lasso_bad_param(NAME_ID_MANAGEMENT, name_id_management);
lasso_null_param(request_msg);
profile = LASSO_PROFILE(name_id_management);
request = (LassoSamlp2ManageNameIDRequest*)lasso_samlp2_manage_name_id_request_new();
lasso_check_good_rc(lasso_saml20_profile_process_any_request(profile,
(LassoNode*)request,
request_msg));
lasso_check_good_rc(lasso_saml20_profile_process_name_identifier_decryption(profile,
&request->NameID, &request->EncryptedID));
lasso_check_good_rc(lasso_saml20_profile_check_signature_status(profile));
cleanup:
lasso_release_gobject(request);
return rc;
}
/**
* lasso_name_id_management_validate_request:
* @name_id_management: a #LassoNameIdManagement
*
* Processes a Name Id Management request, performing requested actions against
* principal federations. Profile identity may have to be saved afterwards.
*
* Return value: 0 on success; or a negative value otherwise.
**/
int
lasso_name_id_management_validate_request(LassoNameIdManagement *name_id_management)
{
LassoProfile *profile = NULL;
LassoProvider *remote_provider = NULL;
LassoSamlp2StatusResponse *response = NULL;
LassoSaml2NameID *name_id = NULL;
LassoFederation *federation = NULL;
int rc = 0;
lasso_bad_param(NAME_ID_MANAGEMENT, name_id_management);
profile = LASSO_PROFILE(name_id_management);
response = (LassoSamlp2StatusResponse*)lasso_samlp2_manage_name_id_response_new();
rc = lasso_saml20_profile_validate_request(profile, TRUE, response, &remote_provider);
if (rc)
goto cleanup;
/* Get the federation */
federation = lasso_identity_get_federation(profile->identity,
remote_provider->ProviderID);
if (LASSO_IS_FEDERATION(federation) == FALSE) {
rc = critical_error(LASSO_PROFILE_ERROR_FEDERATION_NOT_FOUND);
goto cleanup;
}
/* Get the name identifier */
name_id = LASSO_SAMLP2_MANAGE_NAME_ID_REQUEST(profile->request)->NameID;
if (! LASSO_IS_SAML2_NAME_ID(name_id)) {
message(G_LOG_LEVEL_CRITICAL,
"Name identifier not found in name id management request");
lasso_saml20_profile_set_response_status_requester(
profile,
"MissingNameID");
rc = LASSO_PROFILE_ERROR_NAME_IDENTIFIER_NOT_FOUND;
goto cleanup;
}
/* Check it matches */
if (! lasso_federation_verify_name_identifier(federation, (LassoNode*)name_id)) {
lasso_saml20_profile_set_response_status_responder(
profile,
LASSO_SAML2_STATUS_CODE_UNKNOWN_PRINCIPAL);
rc = LASSO_PROFILE_ERROR_FEDERATION_NOT_FOUND;
goto cleanup;
}
/* Ok it matches, now apply modifications */
if (LASSO_SAMLP2_MANAGE_NAME_ID_REQUEST(profile->request)->Terminate) {
/* defederation */
lasso_identity_remove_federation(profile->identity, remote_provider->ProviderID);
} else {
/* name registration */
LassoSaml2NameID *new_name_id;
new_name_id = LASSO_SAML2_NAME_ID(lasso_saml2_name_id_new());
new_name_id->Format = g_strdup(name_id->Format);
new_name_id->NameQualifier = g_strdup(name_id->NameQualifier);
new_name_id->SPNameQualifier = g_strdup(name_id->SPNameQualifier);
if (remote_provider->role == LASSO_PROVIDER_ROLE_SP) {
/* if the requester is the service provider, the new
* identifier MUST appear in subsequent <NameID>
* elements in the SPProvidedID attribute
* -- saml-core-2.0-os.pdf, page 58
*/
new_name_id->SPProvidedID = g_strdup(
LASSO_SAMLP2_MANAGE_NAME_ID_REQUEST(profile->request)->NewID);
new_name_id->content = g_strdup(name_id->content);
} else {
/* If the requester is the identity provider, the new
* value will appear in subsequent <NameID> elements as
* the element's content.
* -- saml-core-2.0-os.pdf, page 58
*/
new_name_id->content = g_strdup(
LASSO_SAMLP2_MANAGE_NAME_ID_REQUEST(profile->request)->NewID);
}
/* Get federation */
lasso_assign_gobject(federation->local_nameIdentifier, new_name_id);
/* Set identity is_dirty */
lasso_identity_add_federation(profile->identity, federation);
}
cleanup:
lasso_release_gobject(response);
return rc;
}
/**
* lasso_name_id_management_build_response_msg:
* @name_id_management: a #LassoNameIdManagement
*
* Builds the Name Id Management response message.
*
* Return value: 0 on success; or a negative value otherwise.
**/
int
lasso_name_id_management_build_response_msg(LassoNameIdManagement *name_id_management)
{
LassoProfile *profile = NULL;
LassoSamlp2StatusResponse *response;
int rc = 0;
lasso_bad_param(NAME_ID_MANAGEMENT, name_id_management);
profile = &name_id_management->parent;
/* no response set here means request denied */
if (! LASSO_IS_SAMLP2_STATUS_RESPONSE(profile->response)) {
response = (LassoSamlp2StatusResponse*)lasso_samlp2_manage_name_id_response_new();
if (lasso_saml20_profile_check_signature_status(profile)) {
lasso_check_good_rc(lasso_saml20_profile_init_response(profile, response,
LASSO_SAML2_STATUS_CODE_REQUESTER,
LASSO_LIB_STATUS_CODE_INVALID_SIGNATURE));
} else {
lasso_check_good_rc(lasso_saml20_profile_init_response(profile, response,
LASSO_SAML2_STATUS_CODE_RESPONDER,
LASSO_SAML2_STATUS_CODE_REQUEST_DENIED));
}
lasso_release_gobject(response);
}
/* use the same binding as for the request */
rc = lasso_saml20_profile_build_response_msg(profile, "ManageNameIDService", profile->http_request_method, NULL);
cleanup:
return rc;
}
/**
* lasso_name_id_management_process_response_msg:
* @name_id_management: a #LassoNameIdManagement
* @response_msg: the response message
*
* Parses the response message and builds the corresponding response object.
* Performs requested actions against principal federations. Profile identity
* may have to be saved afterwards.
*
* Return value: 0 on success; or a negative value otherwise.
**/
gint
lasso_name_id_management_process_response_msg(
LassoNameIdManagement *name_id_management,
gchar *response_msg)
{
LassoProfile *profile = NULL;
LassoSamlp2StatusResponse *response = NULL;
int rc = 0;
lasso_bad_param(NAME_ID_MANAGEMENT, name_id_management);
lasso_null_param(response_msg);
profile = &name_id_management->parent;
response = (LassoSamlp2StatusResponse*)lasso_samlp2_manage_name_id_response_new();
lasso_check_good_rc(lasso_saml20_profile_process_any_response(profile, response, NULL, response_msg));
/* Stop here if signature validation failed. */
lasso_check_good_rc(lasso_saml20_profile_check_signature_status(profile));
if (LASSO_SAMLP2_MANAGE_NAME_ID_REQUEST(profile->request)->Terminate) {
lasso_identity_remove_federation(profile->identity, profile->remote_providerID);
} else {
LassoSaml2NameID *new_name_id, *name_id;
LassoFederation *federation;
name_id = LASSO_SAMLP2_MANAGE_NAME_ID_REQUEST(profile->request)->NameID;
new_name_id = LASSO_SAML2_NAME_ID(lasso_saml2_name_id_new());
new_name_id->Format = g_strdup(name_id->Format);
new_name_id->NameQualifier = g_strdup(name_id->NameQualifier);
new_name_id->SPNameQualifier = g_strdup(name_id->SPNameQualifier);
if (LASSO_PROVIDER(profile->server)->role == LASSO_PROVIDER_ROLE_SP) {
/* if the requester is the service provider, the new
* identifier MUST appear in subsequent <NameID>
* elements in the SPProvidedID attribute
* -- saml-core-2.0-os.pdf, page 58
*/
new_name_id->SPProvidedID = g_strdup(
LASSO_SAMLP2_MANAGE_NAME_ID_REQUEST(profile->request)->NewID);
new_name_id->content = g_strdup(name_id->content);
} else {
/* If the requester is the identity provider, the new
* value will appear in subsequent <NameID> elements as
* the element's content.
* -- saml-core-2.0-os.pdf, page 58
*/
new_name_id->content = g_strdup(
LASSO_SAMLP2_MANAGE_NAME_ID_REQUEST(profile->request)->NewID);
}
/* Get federation */
federation = g_hash_table_lookup(profile->identity->federations,
profile->remote_providerID);
if (LASSO_IS_FEDERATION(federation) == FALSE) {
return critical_error(LASSO_PROFILE_ERROR_FEDERATION_NOT_FOUND);
}
if (federation->local_nameIdentifier)
lasso_node_destroy(LASSO_NODE(federation->local_nameIdentifier));
federation->local_nameIdentifier = g_object_ref(new_name_id);
profile->identity->is_dirty = TRUE;
}
cleanup:
lasso_release_gobject(response);
return rc;
}
/*****************************************************************************/
/* private methods */
/*****************************************************************************/
static struct XmlSnippet schema_snippets[] = {
{NULL, 0, 0, NULL, NULL, NULL}
};
static LassoNodeClass *parent_class = NULL;
static xmlNode*
get_xmlNode(LassoNode *node, gboolean lasso_dump)
{
xmlNode *xmlnode;
xmlnode = parent_class->get_xmlNode(node, lasso_dump);
xmlNodeSetName(xmlnode, (xmlChar*)"NameIdManagement");
xmlSetProp(xmlnode, (xmlChar*)"NameIdManagementDumpVersion", (xmlChar*)"1");
return xmlnode;
}
/*****************************************************************************/
/* instance and class init functions */
/*****************************************************************************/
static void
class_init(LassoNameIdManagementClass *klass)
{
LassoNodeClass *nclass = LASSO_NODE_CLASS(klass);
parent_class = g_type_class_peek_parent(klass);
nclass->get_xmlNode = get_xmlNode;
nclass->node_data = g_new0(LassoNodeClassData, 1);
lasso_node_class_set_nodename(nclass, "NameIdManagement");
lasso_node_class_set_ns(nclass, LASSO_LASSO_HREF, LASSO_LASSO_PREFIX);
lasso_node_class_add_snippets(nclass, schema_snippets);
}
GType
lasso_name_id_management_get_type()
{
static GType this_type = 0;
if (!this_type) {
static const GTypeInfo this_info = {
sizeof (LassoNameIdManagementClass),
NULL, NULL,
(GClassInitFunc) class_init,
NULL, NULL,
sizeof(LassoNameIdManagement),
0,
NULL,
NULL
};
this_type = g_type_register_static(LASSO_TYPE_PROFILE,
"LassoNameIdManagement", &this_info, 0);
}
return this_type;
}
/**
* lasso_name_id_management_new:
* @server: the #LassoServer
*
* Creates a new #LassoNameIdManagement.
*
* Return value: a newly created #LassoNameIdManagement object; or NULL if an error
* occured
**/
LassoNameIdManagement*
lasso_name_id_management_new(LassoServer *server)
{
LassoNameIdManagement *name_id_management;
g_return_val_if_fail(LASSO_IS_SERVER(server), NULL);
name_id_management = g_object_new(LASSO_TYPE_NAME_ID_MANAGEMENT, NULL);
/* fresh object dont need to check previous value */
LASSO_PROFILE(name_id_management)->server = g_object_ref(server);
return name_id_management;
}
/**
* lasso_name_id_management_destroy:
* @name_id_management: a #LassoNameIdManagement
*
* Destroys a #LassoNameIdManagement object.
**/
void
lasso_name_id_management_destroy(LassoNameIdManagement *name_id_management)
{
lasso_node_destroy(LASSO_NODE(name_id_management));
}
/**
* lasso_name_id_management_new_from_dump:
* @server: the #LassoServer
* @dump: XML name_id_management dump
*
* Restores the @dump to a new #LassoLogout.
*
* Return value: a newly created #LassoLogout; or NULL if an error occured
**/
LassoNameIdManagement*
lasso_name_id_management_new_from_dump(LassoServer *server, const char *dump)
{
LassoNameIdManagement *name_id_management;
name_id_management = (LassoNameIdManagement*)lasso_node_new_from_dump(dump);
if (LASSO_IS_NAME_ID_MANAGEMENT(name_id_management)) {
lasso_assign_gobject(name_id_management->parent.server, server);
} else {
lasso_release_gobject(name_id_management);
}
return name_id_management;
}
/**
* lasso_name_id_management_dump:
* @name_id_management: a #LassoLogout
*
* Dumps @name_id_management content to an XML string.
*
* Return value:(transfer full): the dump string. It must be freed by the caller.
**/
gchar*
lasso_name_id_management_dump(LassoNameIdManagement *name_id_management)
{
return lasso_node_dump(LASSO_NODE(name_id_management));
}
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