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lasso/lasso/id-ff/session.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, see <http://www.gnu.org/licenses/>.
*/
/**
* SECTION:session
* @short_description: Principal Session
*
**/
#include "../xml/private.h"
#include "../lasso_config.h"
#include "session.h"
#include "sessionprivate.h"
#include "../xml/lib_authentication_statement.h"
#include "../xml/saml_assertion.h"
#include "../xml/saml-2.0/saml2_authn_statement.h"
#include "../xml/saml-2.0/saml2_assertion.h"
#include "../utils.h"
#include "../debug.h"
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <xmlsec/xmltree.h>
#include <xmlsec/base64.h>
static gboolean lasso_match_name_id(LassoNode *a, LassoNode *b);
struct _NidAndSessionIndex {
LassoNode *name_id;
char *assertion_id;
char *session_index;
};
struct _NidAndSessionIndex *
lasso_new_nid_and_session_index(LassoNode *name_id, const char *assertion_id, const char
*session_index)
{
struct _NidAndSessionIndex *nid_and_session_index = g_new0(struct _NidAndSessionIndex, 1);
lasso_assign_gobject(nid_and_session_index->name_id, name_id);
lasso_assign_string(nid_and_session_index->assertion_id, assertion_id);
lasso_assign_string(nid_and_session_index->session_index, session_index);
return nid_and_session_index;
}
static void
lasso_release_nid_and_session_index(struct _NidAndSessionIndex *nid_and_session_index, G_GNUC_UNUSED void *unused)
{
lasso_release_gobject(nid_and_session_index->name_id);
lasso_release_string(nid_and_session_index->session_index);
lasso_release_string(nid_and_session_index->assertion_id);
lasso_release(nid_and_session_index);
}
void
lasso_release_list_of_nid_an_session_index(GList *list)
{
g_list_foreach(list, (GFunc)lasso_release_nid_and_session_index, NULL);
g_list_free(list);
}
/*****************************************************************************/
/* public methods */
/*****************************************************************************/
static void
lasso_session_add_nid_and_session_index(LassoSession *session,
const char *providerID,
struct _NidAndSessionIndex *nid_and_session_index)
{
GList *l = g_hash_table_lookup(session->private_data->nid_and_session_indexes, providerID);
GList *i;
lasso_foreach(i, l) {
struct _NidAndSessionIndex *other_nid_and_sid = i->data;
/* do some sharing and limit doublons */
if (lasso_match_name_id(other_nid_and_sid->name_id, nid_and_session_index->name_id)) {
if (lasso_strisequal(other_nid_and_sid->session_index, nid_and_session_index->session_index)) {
lasso_release_nid_and_session_index(nid_and_session_index, NULL);
return;
}
// lasso_assign_gobject(nid_and_session_index->name_id, other_nid_and_sid->name_id);
}
}
if (l) {
l = g_list_append(l, nid_and_session_index);
} else {
l = g_list_append(l, nid_and_session_index);
g_hash_table_insert(session->private_data->nid_and_session_indexes,
g_strdup(providerID), l);
}
}
/**
* lasso_session_add_assertion_nid_and_session_index:
*
* Extract NameID and SessionIndex and keep them around.
*
*/
static gint
lasso_session_add_assertion_nid_and_session_index(LassoSession *session, const gchar *providerID,
LassoNode *assertion)
{
struct _NidAndSessionIndex *nid_and_session_index = NULL;
lasso_bad_param(SESSION, session);
lasso_null_param(assertion);
if (LASSO_IS_SAML_ASSERTION(assertion)) { /* saml 1.1 */
LassoSamlAssertion *saml_assertion = (LassoSamlAssertion*) assertion;
LassoLibAuthenticationStatement *auth_statement = NULL;
LassoSamlSubjectStatementAbstract *ss = NULL;
if (saml_assertion->SubjectStatement)
ss = &saml_assertion->SubjectStatement->parent;
else if (saml_assertion->AuthenticationStatement)
ss = &saml_assertion->AuthenticationStatement->parent;
else
return LASSO_PARAM_ERROR_INVALID_VALUE;
if (! ss->Subject)
return LASSO_PARAM_ERROR_INVALID_VALUE;
if (! ss->Subject->NameIdentifier)
return LASSO_PARAM_ERROR_INVALID_VALUE;
if (! LASSO_IS_LIB_AUTHENTICATION_STATEMENT(saml_assertion->AuthenticationStatement))
return LASSO_ERROR_UNIMPLEMENTED;
auth_statement = (LassoLibAuthenticationStatement*)
saml_assertion->AuthenticationStatement;
if (! auth_statement->SessionIndex)
return 0;
nid_and_session_index = lasso_new_nid_and_session_index(
(LassoNode*)ss->Subject->NameIdentifier,
saml_assertion->AssertionID,
auth_statement->SessionIndex);
lasso_session_add_nid_and_session_index(session,
providerID, nid_and_session_index);
} else if (LASSO_IS_SAML2_ASSERTION(assertion)) { /* saml 2.0 */
LassoSaml2Assertion *saml2_assertion = (LassoSaml2Assertion*) assertion;
GList *iter;
if (! saml2_assertion->Subject)
return LASSO_PARAM_ERROR_INVALID_VALUE;
if (! saml2_assertion->Subject->NameID)
return LASSO_PARAM_ERROR_INVALID_VALUE;
if (! saml2_assertion->AuthnStatement)
return 0;
lasso_foreach(iter, saml2_assertion->AuthnStatement) {
LassoSaml2AuthnStatement *authn_statement = iter->data;
if (authn_statement->SessionIndex) {
nid_and_session_index = lasso_new_nid_and_session_index(
(LassoNode*)saml2_assertion->Subject->NameID,
saml2_assertion->ID,
authn_statement->SessionIndex);
lasso_session_add_nid_and_session_index(session,
providerID,
nid_and_session_index);
}
}
} else {
return LASSO_ERROR_UNIMPLEMENTED;
}
return 0;
}
static gint
lasso_session_add_assertion_simple(LassoSession *session, const char *providerID, LassoNode
*assertion)
{
g_return_val_if_fail(LASSO_IS_SESSION(session), LASSO_PARAM_ERROR_INVALID_VALUE);
g_return_val_if_fail(providerID != NULL, LASSO_PARAM_ERROR_INVALID_VALUE);
g_return_val_if_fail(assertion != NULL, LASSO_PARAM_ERROR_INVALID_VALUE);
if (lasso_flag_thin_sessions) { /* do not store the full assertion */
return 0;
}
g_hash_table_insert(session->assertions, g_strdup(providerID),
g_object_ref(assertion));
return 0;
}
static gboolean
lasso_match_name_id(LassoNode *a, LassoNode *b)
{
if (LASSO_IS_SAML_NAME_IDENTIFIER(a) && LASSO_IS_SAML_NAME_IDENTIFIER(b)) {
return lasso_saml_name_identifier_equals((LassoSamlNameIdentifier*)a,
(LassoSamlNameIdentifier*)b);
} else if (LASSO_IS_SAML2_NAME_ID(a) && LASSO_IS_SAML2_NAME_ID(b)) {
return lasso_saml2_name_id_equals((LassoSaml2NameID*)a,
(LassoSaml2NameID*)b);
}
return FALSE;
}
/**
* lasso_session_get_session_indexes:
* @session: a #LassoSession object
* @providerID: a provider id
* @name_id: a #LassoSamlAssertion or #LassoSaml2Assertion object
*
* Gets all the registered session indexes for this session.
*
* Return value:(transfer full)(element-type utf8): a list of string containing the session index identifiers.
*/
GList*
lasso_session_get_session_indexes(LassoSession *session,
const gchar *providerID,
LassoNode *node)
{
GList *l = NULL, *iter = NULL;
GList *ret = NULL;
if (! LASSO_IS_SESSION(session))
return NULL;
if (! providerID)
return NULL;
l = g_hash_table_lookup(session->private_data->nid_and_session_indexes,
providerID);
lasso_foreach(iter, l) {
struct _NidAndSessionIndex *nid_and_session_index = iter->data;
if (! nid_and_session_index->session_index)
continue;
if (node && ! lasso_match_name_id(node, nid_and_session_index->name_id)) {
continue;
}
lasso_list_add_string(ret, nid_and_session_index->session_index);
}
return ret;
}
/**
* lasso_session_get_name_ids:
* @session: a #LassoSession object
* @providerID: a provider identifier
*
* List the known NameID coming from this provider during this session.
*
* Return value:(transfer full)(element-type LassoNode): a list of #LassoNode objects.
*/
GList*
lasso_session_get_name_ids(LassoSession *session, const gchar *providerID)
{
GList *nid_and_session_indexes = NULL;
GList *ret = NULL;
GList *i, *j;
if (! LASSO_IS_SESSION(session))
return NULL;
if (! providerID)
return NULL;
nid_and_session_indexes = g_hash_table_lookup(session->private_data->nid_and_session_indexes,
providerID);
lasso_foreach(i, nid_and_session_indexes) {
struct _NidAndSessionIndex *nid_and_session_index = i->data;
int ok = 1;
lasso_foreach(j, ret) {
if (lasso_match_name_id(j->data, nid_and_session_index->name_id)) {
ok = 0;
break;
}
}
if (ok) {
lasso_list_add_gobject(ret, nid_and_session_index->name_id);
}
}
return ret;
}
/**
* lasso_session_get_assertion_ids:
* @session: a #LassoSession object
* @providerID: a provider identifier
*
* List the ids of assertions received during the current session.
*
* Return value:(transfer full)(element-type utf8): a list of strings
*/
GList*
lasso_session_get_assertion_ids(LassoSession *session, const gchar *providerID)
{
GList *nid_and_session_indexes = NULL;
GList *ret = NULL;
GList *i;
if (! LASSO_IS_SESSION(session))
return NULL;
if (! providerID)
return NULL;
nid_and_session_indexes = g_hash_table_lookup(session->private_data->nid_and_session_indexes,
providerID);
lasso_foreach(i, nid_and_session_indexes) {
struct _NidAndSessionIndex *nid_and_session_index = i->data;
lasso_list_add_string(ret, nid_and_session_index->assertion_id);
}
return ret;
}
/**
* lasso_session_add_assertion:
* @session: a #LassoSession
* @providerID: the provider ID
* @assertion: the assertion
*
* Adds @assertion to the principal session. This function also
* add the assertion to the index by assertionID.
*
* Return value: 0 on success; or a negative value otherwise.
**/
gint
lasso_session_add_assertion(LassoSession *session, const char *providerID, LassoNode *assertion)
{
gint ret = 0;
ret = lasso_session_add_assertion_simple(session, providerID, assertion);
if (ret != 0) {
return ret;
}
ret = lasso_session_add_assertion_nid_and_session_index(session, providerID, assertion);
if (ret != 0) {
return ret;
}
session->is_dirty = TRUE;
return ret;
}
/**
* lasso_session_add_assertion_with_id:
* @session: a #LassoSession
* @assertionID: the provider ID
* @assertion: the assertion
*
* Adds an assertion to the dictionnary of assertion indexed by their id,
* do not store a reference by the Issuer like #lasso_session_add_assertion.
*
* Returns: 0 if the assertion was added to the dictionnary.
*/
gint
lasso_session_add_assertion_with_id(LassoSession *session, const char *assertionID,
xmlNode *assertion)
{
g_return_val_if_fail(LASSO_IS_SESSION(session), LASSO_PARAM_ERROR_INVALID_VALUE);
g_return_val_if_fail(assertionID != NULL, LASSO_PARAM_ERROR_INVALID_VALUE);
g_return_val_if_fail(assertion != NULL, LASSO_PARAM_ERROR_INVALID_VALUE);
g_hash_table_insert(session->private_data->assertions_by_id,
g_strdup(assertionID),
xmlCopyNode(assertion, 1));
session->is_dirty = TRUE;
return 0;
}
/**
* lasso_session_add_status:
* @session: a #LassoSession
* @providerID: the provider ID
* @status: the status
*
* Adds @status to the principal session.
*
* Return value: 0 on success; or a negative value otherwise.
**/
gint
lasso_session_add_status(LassoSession *session, const char *providerID, LassoNode *status)
{
g_return_val_if_fail(LASSO_IS_SESSION(session), LASSO_PARAM_ERROR_INVALID_VALUE);
g_return_val_if_fail(providerID != NULL, LASSO_PARAM_ERROR_INVALID_VALUE);
g_return_val_if_fail(status != NULL, LASSO_PARAM_ERROR_INVALID_VALUE);
g_hash_table_insert(session->private_data->status, g_strdup(providerID), status);
session->is_dirty = TRUE;
return 0;
}
/**
* lasso_session_get_assertion
* @session: a #LassoSession
* @providerID: the provider ID
*
* Gets the assertion for the given @providerID.
*
* Return value:(transfer none)(allow-none): the assertion or NULL if it didn't exist. This
* #LassoSamlAssertion is internally allocated and must not be freed by
* the caller.
**/
LassoNode*
lasso_session_get_assertion(LassoSession *session, const gchar *providerID)
{
g_return_val_if_fail(LASSO_IS_SESSION(session), NULL);
return g_hash_table_lookup(session->assertions, providerID);
}
/**
* lasso_session_get_assertion_by_id:
* @session: a #LassoSession
* @assertionID: the assertionID of the requested assertion
*
* Gets the assertion for the given @assertionID.
*
* Return value:(transfer none)(allow-none): the assertion or NULL if it didn't exist. This
* #LassoSamlAssertion is internally allocated and must not be freed by
* the caller.
*/
xmlNode*
lasso_session_get_assertion_by_id(LassoSession *session, const gchar *assertionID)
{
g_return_val_if_fail(LASSO_IS_SESSION(session), NULL);
return g_hash_table_lookup(session->private_data->assertions_by_id, assertionID);
}
static void
add_assertion_to_list(G_GNUC_UNUSED gchar *key, LassoLibAssertion *value, GList **list)
{
*list = g_list_append(*list, value);
}
/**
* lasso_session_get_assertions
* @session: a #LassoSession
* @provider_id: the provider ID
*
* Gets the assertions for the given @provider_id.
*
* Return value:(allow-none)(transfer container) (element-type LassoNode): a list of #LassoSamlAssertion.
**/
GList*
lasso_session_get_assertions(LassoSession *session, const char *provider_id)
{
GList *r = NULL;
LassoSamlAssertion *assertion;
if (session == NULL) {
return NULL;
}
if (provider_id == NULL) {
g_hash_table_foreach(session->assertions, (GHFunc)add_assertion_to_list, &r);
} else {
assertion = g_hash_table_lookup(session->assertions, provider_id);
if (assertion)
r = g_list_append(r, assertion);
}
return r;
}
/**
* lasso_session_get_status
* @session: a #LassoSession
* @providerID: the provider ID
*
* Gets the status for the given @providerID.
*
* Return value:(transfer none)(allow-none): the status or NULL if it didn't exist. This #LassoSamlpStatus
* is internally allocated and must not be freed by the caller.
**/
LassoNode*
lasso_session_get_status(LassoSession *session, const gchar *providerID)
{
if (session == NULL) {
return NULL;
}
return g_hash_table_lookup(session->private_data->status, providerID);
}
static void
add_providerID(gchar *key, G_GNUC_UNUSED struct _NidAndSessionIndex *ignored, LassoSession *session)
{
lasso_list_add_string(session->private_data->providerIDs, key);
}
/**
* lasso_session_get_provider_index:
* @session: a #LassoSession
* @index: index of requested provider
*
* Looks up and returns the nth provider id.
*
* Return value:(transfer full)(allow-none): the provider id; or NULL if there were no nth provider. This
* string must be freed by the caller.
**/
gchar*
lasso_session_get_provider_index(LassoSession *session, gint index)
{
GList *element;
int length;
g_return_val_if_fail(LASSO_IS_SESSION(session), NULL);
g_return_val_if_fail(session->private_data, NULL);
length = g_hash_table_size(session->private_data->nid_and_session_indexes);
if (length == 0)
return NULL;
if (session->private_data->providerIDs == NULL) {
lasso_session_init_provider_ids(session);
}
element = g_list_nth(session->private_data->providerIDs, index);
if (element == NULL)
return NULL;
return g_strdup(element->data);
}
/**
* lasso_session_init_provider_ids:
* @session: a #LassoSession
*
* Initializes internal assertions providers list, used to iterate in logout
* process.
**/
void
lasso_session_init_provider_ids(LassoSession *session)
{
g_return_if_fail(LASSO_IS_SESSION(session));
g_return_if_fail(session->private_data);
lasso_release_list_of_strings(session->private_data->providerIDs);
g_hash_table_foreach(session->private_data->nid_and_session_indexes, (GHFunc)add_providerID,
session);
}
/**
* lasso_session_is_empty:
* @session: a #LassoSession
*
* Returns %TRUE if session is empty.
*
* Return value: %TRUE if empty
**/
gboolean
lasso_session_is_empty(LassoSession *session)
{
if (session == NULL) {
return TRUE;
}
if (g_hash_table_size(session->assertions) +
g_hash_table_size(session->private_data->status) +
g_hash_table_size(session->private_data->assertions_by_id) +
g_hash_table_size(session->private_data->nid_and_session_indexes))
{
return FALSE;
}
return TRUE;
}
/**
* lasso_session_count_assertions:
* @session: a #LassoSession object
*
* Return the number of assertion currently recored in the session.
*
* Return value: a positive value or -1 if session is an invalid #LassoSession object.
*/
gint
lasso_session_count_assertions(LassoSession *session)
{
GHashTable *hashtable;
if (! LASSO_IS_SESSION(session))
return -1;
if (lasso_flag_thin_sessions)
hashtable = session->private_data->nid_and_session_indexes;
else
hashtable = session->assertions;
return hashtable ? g_hash_table_size(hashtable) : 0;
}
gboolean
lasso_session_is_dirty(LassoSession *session)
{
lasso_return_val_if_invalid_param(SESSION, session, TRUE);
return session->is_dirty;
}
/**
* lasso_session_remove_assertion:
* @session: a #LassoSession
* @providerID: the provider ID
*
* Removes assertion for @providerID from @session.
*
* Return value: 0 on success; or a negative value otherwise.
**/
gint
lasso_session_remove_assertion(LassoSession *session, const gchar *providerID)
{
int rc = 0;
gboolean ok1, ok2;
lasso_bad_param(SESSION, session);
lasso_return_val_if_fail(! lasso_strisempty(providerID), LASSO_PARAM_ERROR_INVALID_VALUE);
ok1 = g_hash_table_remove(session->assertions, providerID);
ok2 = g_hash_table_remove(session->private_data->nid_and_session_indexes, providerID);
if (ok1 || ok2) {
session->is_dirty = TRUE;
} else {
rc = LASSO_PROFILE_ERROR_MISSING_ASSERTION;
}
return rc;
}
/**
* lasso_session_remove_status:
* @session: a #LassoSession
* @providerID: the provider ID
*
* Removes status for @providerID from @session.
*
* Return value: 0 on success; or a negative value otherwise.
**/
gint
lasso_session_remove_status(LassoSession *session, const gchar *providerID)
{
g_return_val_if_fail(session != NULL, LASSO_PARAM_ERROR_INVALID_VALUE);
g_return_val_if_fail(providerID != NULL, LASSO_PARAM_ERROR_INVALID_VALUE);
if (g_hash_table_remove(session->private_data->status, providerID)) {
session->is_dirty = TRUE;
return 0;
}
return LASSO_PROFILE_ERROR_MISSING_STATUS_CODE;
}
/*****************************************************************************/
/* private methods */
/*****************************************************************************/
static LassoNodeClass *parent_class = NULL;
typedef struct _DumpContext {
xmlNode *parent;
} DumpContext;
static void
add_assertion_childnode(gchar *key, LassoLibAssertion *value, DumpContext *context)
{
xmlNode *t;
xmlNode *xmlnode;
xmlnode = context->parent;
t = xmlNewTextChild(xmlnode, NULL, (xmlChar*)"Assertion", NULL);
xmlSetProp(t, (xmlChar*)"RemoteProviderID", (xmlChar*)key);
xmlAddChild(t, lasso_node_get_xmlNode(LASSO_NODE(value), TRUE));
}
xmlChar *
xmlNode_to_base64(xmlNode *node) {
gchar *buffer = NULL;
xmlChar *ret = NULL;
buffer = lasso_xmlnode_to_string(node, 0, 0);
ret = xmlSecBase64Encode(BAD_CAST buffer, strlen((char*)buffer), 0);
lasso_release_string(buffer);
return ret;
}
static void
add_assertion_by_id(gchar *key, xmlNode *value, DumpContext *context)
{
xmlNode *t, *xmlnode;
xmlChar *content;
xmlnode = context->parent;
t = xmlNewTextChild(xmlnode, NULL, (xmlChar*)"Assertion", NULL);
xmlSetProp(t, (xmlChar*)"ID", (xmlChar*)key);
content = xmlNode_to_base64(value);
if (content) {
// xmlAddChild(t, xmlCopyNode(value, 1));
xmlNodeSetContent(t, content);
xmlFree(content);
}
}
static void
add_status_childnode(gchar *key, LassoSamlpStatus *value, DumpContext *context)
{
xmlNode *t;
xmlNode *xmlnode;
xmlnode = context->parent;
t = xmlNewTextChild(xmlnode, NULL, (xmlChar*)"Status", NULL);
xmlSetProp(t, (xmlChar*)"RemoteProviderID", (xmlChar*)key);
xmlAddChild(t, lasso_node_get_xmlNode(LASSO_NODE(value), TRUE));
}
#define NID_AND_SESSION_INDEX "NidAndSessionIndex"
#define SESSION_INDEX "SessionIndex"
#define PROVIDER_ID "ProviderID"
#define ASSERTION_ID "AssertionID"
static void
xmlnode_add_assertion_nid_and_session_indexes(gchar *key, GList *nid_and_session_indexes, DumpContext *context)
{
GList *iter;
if (! nid_and_session_indexes) {
return;
}
lasso_foreach(iter, nid_and_session_indexes) {
struct _NidAndSessionIndex *nid_and_session_index = iter->data;
xmlNode *node = xmlSecAddChild(context->parent, BAD_CAST NID_AND_SESSION_INDEX,
BAD_CAST LASSO_LASSO_HREF);
xmlSetProp(node, BAD_CAST PROVIDER_ID, BAD_CAST key);
xmlSetProp(node, BAD_CAST ASSERTION_ID, BAD_CAST nid_and_session_index->assertion_id);
if (nid_and_session_index->session_index) {
xmlSetProp(node, BAD_CAST SESSION_INDEX,
BAD_CAST nid_and_session_index->session_index);
}
xmlSecAddChildNode(node, lasso_node_get_xmlNode(nid_and_session_index->name_id,
FALSE));
}
}
static xmlNode*
get_xmlNode(LassoNode *node, G_GNUC_UNUSED gboolean lasso_dump)
{
xmlNode *xmlnode;
LassoSession *session = LASSO_SESSION(node);
DumpContext context;
xmlnode = xmlNewNode(NULL, (xmlChar*)"Session");
context.parent = xmlnode;
xmlSetNs(xmlnode, xmlNewNs(xmlnode, (xmlChar*)LASSO_LASSO_HREF, NULL));
xmlSetProp(xmlnode, (xmlChar*)"Version", (xmlChar*)"2");
if (g_hash_table_size(session->assertions))
g_hash_table_foreach(session->assertions,
(GHFunc)add_assertion_childnode, &context);
if (g_hash_table_size(session->private_data->status))
g_hash_table_foreach(session->private_data->status,
(GHFunc)add_status_childnode, &context);
if (g_hash_table_size(session->private_data->assertions_by_id)) {
g_hash_table_foreach(session->private_data->assertions_by_id,
(GHFunc)add_assertion_by_id, &context);
}
if (g_hash_table_size(session->private_data->nid_and_session_indexes)) {
g_hash_table_foreach(session->private_data->nid_and_session_indexes,
(GHFunc)xmlnode_add_assertion_nid_and_session_indexes, &context);
}
return xmlnode;
}
xmlNode*
base64_to_xmlNode(xmlChar *buffer) {
char *decoded = NULL;
int decoded_len = 0;
xmlDoc *doc = NULL;
xmlNode *ret = NULL;
if (! lasso_base64_decode((char*)buffer, &decoded, &decoded_len))
goto cleanup;
doc = xmlParseMemory(decoded, decoded_len);
if (doc == NULL)
goto cleanup;
ret = xmlDocGetRootElement(doc);
if (ret) {
ret = xmlCopyNode(ret, 1);
}
cleanup:
lasso_release_string(decoded);
lasso_release_doc(doc);
return ret;
}
static void
init_from_xml_nid_and_session_index(LassoNode *node, xmlNode *nid_and_session_index_node)
{
xmlChar *session_index = NULL;
xmlChar *provider_id = NULL;
xmlChar *assertion_id = NULL;
xmlNode *nid;
LassoNode *name_id = NULL;
struct _NidAndSessionIndex *nid_and_session_index;
provider_id = xmlGetProp(nid_and_session_index_node, BAD_CAST PROVIDER_ID);
if (! provider_id)
goto cleanup;
assertion_id = xmlGetProp(nid_and_session_index_node, BAD_CAST ASSERTION_ID);
if (! assertion_id)
goto cleanup;
nid = xmlSecGetNextElementNode(nid_and_session_index_node->children);
if (! nid)
goto cleanup;
name_id = lasso_node_new_from_xmlNode(nid);
if (! name_id)
goto cleanup;
session_index = xmlGetProp(nid_and_session_index_node, BAD_CAST SESSION_INDEX);
nid_and_session_index = lasso_new_nid_and_session_index(name_id, (char*)assertion_id,
(char*)session_index);
lasso_session_add_nid_and_session_index((LassoSession*)node, (char*)provider_id,
nid_and_session_index);
cleanup:
lasso_release_xml_string(session_index);
lasso_release_xml_string(provider_id);
lasso_release_xml_string(assertion_id);
lasso_release_gobject(name_id);
}
static int
init_from_xml(LassoNode *node, xmlNode *xmlnode)
{
LassoSession *session = LASSO_SESSION(node);
xmlNode *t;
xmlNode *n;
t = xmlnode->children;
while (t) {
if (t->type != XML_ELEMENT_NODE) {
t = t->next;
continue;
}
if (strcmp((char*)t->name, "Assertion") == 0) {
xmlChar* value;
n = t->children;
while (n && n->type != XML_ELEMENT_NODE) n = n->next;
if (n) {
LassoNode *assertion;
if ((value = xmlGetProp(t, (xmlChar*)"RemoteProviderID"))) {
assertion = lasso_node_new_from_xmlNode(n);
lasso_session_add_assertion_simple(session, (char*)value, assertion);
/* automatic upgrade from old session serialization to the new */
lasso_session_add_assertion_nid_and_session_index(session, (char*)value, assertion);
lasso_release_gobject(assertion);
xmlFree(value);
}
} else if ((value = xmlGetProp(t, (xmlChar*)"ID"))) {
xmlChar *content;
xmlNode *assertion;
content = xmlNodeGetContent(t);
if (content) {
assertion = base64_to_xmlNode(content);
if (assertion) {
lasso_session_add_assertion_with_id(session,
(char*)value, assertion);
xmlFreeNode(assertion);
}
xmlFree(content);
}
xmlFree(value);
}
}
if (strcmp((char*)t->name, "Status") == 0) {
n = t->children;
while (n && n->type != XML_ELEMENT_NODE) n = n->next;
if (n) {
LassoNode *status;
status = lasso_node_new_from_xmlNode(n);
g_hash_table_insert(session->private_data->status,
xmlGetProp(t, (xmlChar*)"RemoteProviderID"),
status);
}
}
if (xmlSecCheckNodeName(t, BAD_CAST NID_AND_SESSION_INDEX,
BAD_CAST LASSO_LASSO_HREF)) {
init_from_xml_nid_and_session_index(node, t);
}
t = t->next;
}
return 0;
}
/*****************************************************************************/
/* overridden parent class methods */
/*****************************************************************************/
static void
dispose(GObject *object)
{
LassoSession *session = LASSO_SESSION(object);
if (! session->private_data || session->private_data->dispose_has_run == TRUE)
return;
session->private_data->dispose_has_run = TRUE;
lasso_release_ghashtable(session->assertions);
lasso_release_ghashtable(session->private_data->status);
lasso_release_list_of_strings(session->private_data->providerIDs);
lasso_release_ghashtable(session->private_data->assertions_by_id);
lasso_release_ghashtable(session->private_data->nid_and_session_indexes);
G_OBJECT_CLASS(parent_class)->dispose(object);
}
/*****************************************************************************/
/* instance and class init functions */
/*****************************************************************************/
static void
instance_init(LassoSession *session, G_GNUC_UNUSED void *unused)
{
session->private_data = LASSO_SESSION_GET_PRIVATE(session);
session->private_data->dispose_has_run = FALSE;
session->private_data->providerIDs = NULL;
session->private_data->status = g_hash_table_new_full(g_str_hash, g_str_equal,
(GDestroyNotify)g_free,
(GDestroyNotify)lasso_node_destroy);
session->private_data->assertions_by_id =
g_hash_table_new_full(g_str_hash, g_str_equal,
(GDestroyNotify)g_free,
(GDestroyNotify)xmlFree);
session->assertions = g_hash_table_new_full(g_str_hash, g_str_equal,
(GDestroyNotify)g_free, (GDestroyNotify)lasso_node_destroy);
session->is_dirty = FALSE;
session->private_data->nid_and_session_indexes = g_hash_table_new_full(g_str_hash,
g_str_equal, (GDestroyNotify)g_free,
(GDestroyNotify)lasso_release_list_of_nid_an_session_index);
}
static void
class_init(LassoSessionClass *klass, void *unused G_GNUC_UNUSED)
{
LassoNodeClass *nclass = LASSO_NODE_CLASS(klass);
parent_class = g_type_class_peek_parent(klass);
nclass->get_xmlNode = get_xmlNode;
nclass->init_from_xml = init_from_xml;
nclass->node_data = g_new0(LassoNodeClassData, 1);
lasso_node_class_set_nodename(nclass, "Session");
lasso_node_class_set_ns(nclass, LASSO_LASSO_HREF, LASSO_LASSO_PREFIX);
g_type_class_add_private(nclass, sizeof(LassoSessionPrivate));
G_OBJECT_CLASS(klass)->dispose = dispose;
}
GType
lasso_session_get_type()
{
static GType this_type = 0;
if (!this_type) {
static const GTypeInfo this_info = {
sizeof (LassoSessionClass),
NULL,
NULL,
(GClassInitFunc) class_init,
NULL,
NULL,
sizeof(LassoSession),
0,
(GInstanceInitFunc) instance_init,
NULL
};
this_type = g_type_register_static(LASSO_TYPE_NODE,
"LassoSession", &this_info, 0);
}
return this_type;
}
/**
* lasso_session_new:
*
* Creates a new #LassoSession.
*
* Return value: a newly created #LassoSession
**/
LassoSession*
lasso_session_new()
{
return g_object_new(LASSO_TYPE_SESSION, NULL);
}
/**
* lasso_session_new_from_dump:
* @dump: XML server dump
*
* Restores the @dump to a new #LassoSession.
*
* Return value: a newly created #LassoSession; or NULL if an error occured
**/
LassoSession*
lasso_session_new_from_dump(const gchar *dump)
{
LassoSession *session;
session = (LassoSession*)lasso_node_new_from_dump(dump);
if (! LASSO_IS_SESSION(session)) {
lasso_release_gobject(session);
}
return session;
}
/**
* lasso_session_dump:
* @session: a #LassoSession
*
* Dumps @session content to an XML string.
*
* Return value:(transfer full): the dump string. It must be freed by the caller.
**/
gchar*
lasso_session_dump(LassoSession *session)
{
if (lasso_session_is_empty(session))
return g_strdup("");
return lasso_node_dump(LASSO_NODE(session));
}
/**
* lasso_session_destroy:
* @session: a #LassoSession
*
* Destroys a session.
**/
void lasso_session_destroy(LassoSession *session)
{
if (session == NULL)
return;
lasso_node_destroy(LASSO_NODE(session));
}
gboolean
lasso_session_has_slo_session(LassoSession *session, const gchar *provider_id)
{
if (! LASSO_IS_SESSION(session))
return FALSE;
return g_hash_table_lookup(session->private_data->nid_and_session_indexes, provider_id) !=
NULL;
}
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