Added session class

3 files changed, 528 insertions, 0 deletions

diff --git a/lasso/id-ff/Makefile.am b/lasso/id-ff/Makefile.am
index 78084832..700a6842 100644
--- a/lasso/id-ff/Makefile.am
+++ b/lasso/id-ff/Makefile.am
@@ -20,6 +20,7 @@ liblasso_environs_la_SOURCES = \
 	profile_context.c \
 	register_name_identifier.c \
 	server.c \
+	session.c \
 	user.c
 
 liblassoinclude_HEADERS = \
@@ -31,4 +32,5 @@ liblassoinclude_HEADERS = \
 	profile_context.h \
 	register_name_identifier.h \
 	server.h \
+	session.h \
 	user.h
diff --git a/lasso/id-ff/session.c b/lasso/id-ff/session.c
new file mode 100644
index 00000000..9c3d9f40
--- /dev/null
+++ b/lasso/id-ff/session.c
@@ -0,0 +1,433 @@
+/* $Id$
+ *
+ * Lasso - A free implementation of the Liberty Alliance specifications.
+ *
+ * Copyright (C) 2004 Entr'ouvert
+ * http://lasso.entrouvert.org
+ * 
+ * Authors: Nicolas Clapies <nclapies@entrouvert.com>
+ *          Valery Febvre <vfebvre@easter-eggs.com>
+ *
+ * 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 <lasso/environs/session.h>
+
+#define LASSO_SESSION_NODE                   "LassoSession"
+#define LASSO_SESSION_IDENTITIES_NODE        "LassoIdentities"
+#define LASSO_SESSION_IDENTITY_NODE          "LassoIdentity"
+#define LASSO_SESSION_ASSERTIONS_NODE        "LassoAssertions"
+#define LASSO_SESSION_ASSERTION_NODE         "LassoAssertion"
+#define LASSO_SESSION_REMOTE_PROVIDERID_ATTR "RemoteProviderID"
+
+struct _LassoSessionPrivate
+{
+  gboolean dispose_has_run;
+};
+
+static GObjectClass *parent_class = NULL;
+
+/*****************************************************************************/
+/* private functions                                                         */
+/*****************************************************************************/
+
+static void
+lasso_session_copy_assertion(gpointer key,
+			     gpointer value,
+			     gpointer assertions)
+{
+  g_hash_table_insert((GHashTable *)assertions, g_strdup((gchar *)key),
+		      lasso_node_copy(LASSO_NODE(value)));
+}
+
+static void
+lasso_session_dump_assertion(gpointer   key,
+			     gpointer   value,
+			     LassoNode *assertions)
+{
+  LassoNode      *assertion_node, *assertion_copy;
+  LassoNodeClass *assertion_class, *assertions_class;
+
+  /* new lasso assertion node */
+  assertion_node = lasso_node_new();
+  assertion_class = LASSO_NODE_GET_CLASS(assertion_node);
+  assertion_class->set_name(assertion_node, LASSO_SESSION_ASSERTION_NODE);
+
+  /* set the remote provider id */
+  assertion_class->set_prop(assertion_node, LASSO_SESSION_REMOTE_PROVIDERID_ATTR, key);
+  
+  /* set assertion node */
+  assertion_copy = lasso_node_copy(LASSO_NODE(value));
+  assertion_class->add_child(assertion_node, assertion_copy, FALSE);
+  lasso_node_destroy(assertion_copy);
+
+  /* add lasso assertion node to lasso assertions node */
+  assertions_class = LASSO_NODE_GET_CLASS(assertions);
+  assertions_class->add_child(assertions, assertion_node, TRUE);
+  lasso_node_destroy(assertion_node);
+}
+
+/*****************************************************************************/
+/* public methods                                                            */
+/*****************************************************************************/
+
+gint
+lasso_session_add_assertion(LassoSession *session,
+			    gchar        *remote_providerID,
+			    LassoNode    *assertion)
+{
+  int i;
+  gboolean found;
+
+  g_return_val_if_fail(session!=NULL, -1);
+  g_return_val_if_fail(remote_providerID!=NULL, -2);
+  g_return_val_if_fail(assertion!=NULL, -3);
+
+  /* add the remote provider id */
+  found = FALSE;
+  for(i = 0; i<session->providerIDs->len; i++) {
+    if(xmlStrEqual(remote_providerID, g_ptr_array_index(session->providerIDs, i))) {
+      found = TRUE;
+    }
+  }
+  if(found == TRUE) {
+    message(G_LOG_LEVEL_ERROR, "A provider id already exists\n");
+    return(-4);
+  }
+
+  g_ptr_array_add(session->providerIDs, g_strdup(remote_providerID));
+
+  /* add the assertion */
+  g_hash_table_insert(session->assertions, g_strdup(remote_providerID),
+		      lasso_node_copy(assertion));
+
+  return(0);
+}
+
+LassoSession*
+lasso_session_copy(LassoSession *session)
+{
+  LassoSession *copy;
+  guint i;
+
+  if (session == NULL) {
+    return(NULL);
+  }
+
+  copy = LASSO_SESSION(g_object_new(LASSO_TYPE_SESSION, NULL));
+
+  copy->providerIDs = g_ptr_array_new();
+  for(i=0; i<session->providerIDs->len; i++) {
+    g_ptr_array_add(copy->providerIDs,
+		    g_strdup(g_ptr_array_index(session->providerIDs, i)));
+  }
+  copy->assertions = g_hash_table_new_full(g_str_hash, g_str_equal,
+					   (GDestroyNotify)g_free,
+					   (GDestroyNotify)lasso_node_destroy);
+  g_hash_table_foreach(copy->assertions, (GHFunc)lasso_session_copy_assertion,
+		       (gpointer)copy->assertions);
+
+  return(copy);
+}
+
+void
+lasso_session_destroy(LassoSession *session)
+{
+  if (LASSO_IS_SESSION(session)) {
+    g_object_unref(G_OBJECT(session));
+  }
+}
+
+gchar*
+lasso_session_dump(LassoSession *session)
+{
+  LassoNode      *session_node, *assertions_node;
+  LassoNodeClass *session_class, *assertions_class;
+  int table_size;
+  xmlChar *dump;
+
+  g_return_val_if_fail(session != NULL, NULL);
+
+  session_node = lasso_node_new();
+  session_class = LASSO_NODE_GET_CLASS(session_node);
+  session_class->set_name(session_node, LASSO_SESSION_NODE);
+
+  /* dump the assertions */
+  table_size = g_hash_table_size(session->assertions);
+  if (table_size > 0) {
+    assertions_node = lasso_node_new();
+    assertions_class = LASSO_NODE_GET_CLASS(assertions_node);
+    assertions_class->set_name(assertions_node, LASSO_SESSION_ASSERTIONS_NODE);
+    g_hash_table_foreach(session->assertions, (GHFunc)lasso_session_dump_assertion,
+			 assertions_node);
+    session_class->add_child(session_node, assertions_node, FALSE);
+    lasso_node_destroy(assertions_node);
+  }
+
+  dump = lasso_node_export(session_node);
+
+  lasso_node_destroy(session_node);
+
+  return(dump);
+}
+
+LassoNode*
+lasso_session_get_assertion(LassoSession *session,
+			    gchar        *remote_providerID)
+{
+  LassoNode *assertion;
+
+  g_return_val_if_fail(session != NULL, NULL);
+  g_return_val_if_fail(remote_providerID != NULL, NULL);
+
+  assertion = (LassoNode *)g_hash_table_lookup(session->assertions,
+					       remote_providerID);
+  if (assertion == NULL) {
+    return NULL;
+  }
+
+  return(lasso_node_copy(assertion));
+}
+
+gchar*
+lasso_session_get_authentication_method(LassoSession *session,
+					gchar        *remote_providerID)
+{
+  LassoNode *assertion, *as;
+  gchar *providerID = remote_providerID;
+  gchar *authentication_method;
+  GError *err = NULL;
+
+  if (remote_providerID == NULL) {
+    providerID = lasso_session_get_next_assertion_remote_providerID(session);
+  }
+  assertion = lasso_session_get_assertion(session, providerID);
+  if (remote_providerID == NULL) {
+    g_free(providerID);
+  }
+  as = lasso_node_get_child(assertion, "AuthenticationStatement", NULL);
+  authentication_method = lasso_node_get_attr_value(as, "AuthenticationMethod", &err);
+  if (authentication_method == NULL) {
+    message(G_LOG_LEVEL_ERROR, err->message);
+    g_error_free(err);
+    goto done;
+  }
+
+ done:
+  lasso_node_destroy(as);
+  lasso_node_destroy(assertion);
+  return (authentication_method);
+}
+
+gchar*
+lasso_session_get_next_assertion_remote_providerID(LassoSession *session)
+{
+  gchar *remote_providerID;
+
+  g_return_val_if_fail(session!=NULL, NULL);
+
+  if(session->providerIDs->len == 0) {
+    return(NULL);
+  }
+
+  remote_providerID = g_strdup(g_ptr_array_index(session->providerIDs, 0));
+
+  return(remote_providerID);
+}
+
+gint
+lasso_session_remove_assertion(LassoSession *session,
+			       gchar        *remote_providerID)
+{
+  LassoNode *assertion;
+  int i;
+
+  g_return_val_if_fail(session!=NULL, -1);
+
+  g_return_val_if_fail(remote_providerID!=NULL, -2);
+
+  /* remove the assertion */
+  assertion = lasso_session_get_assertion(session, remote_providerID);
+  if (assertion != NULL) {
+    g_hash_table_remove(session->assertions, remote_providerID);
+    lasso_node_destroy(assertion);
+  }
+
+  /* remove the remote provider id */
+  for(i = 0; i<session->providerIDs->len; i++){
+    if(xmlStrEqual(remote_providerID, g_ptr_array_index(session->providerIDs, i))){
+      g_ptr_array_remove_index(session->providerIDs, i);
+      break;
+    }
+  }
+
+  return(0);
+}
+
+/*****************************************************************************/
+/* overrided parent class methods                                            */
+/*****************************************************************************/
+
+static void
+lasso_session_dispose(LassoSession *session)
+{
+  if (session->private->dispose_has_run == TRUE) {
+    return;
+  }
+  session->private->dispose_has_run = TRUE;
+
+  debug("Session object 0x%x disposed ...\n", session);
+
+  g_hash_table_destroy(session->assertions);
+  session->assertions = NULL;
+
+  parent_class->dispose(G_OBJECT(session));
+}
+
+static void
+lasso_session_finalize(LassoSession *session)
+{
+  gint i;
+
+  debug("Session object 0x%x finalized ...\n", session);
+
+  /* free allocated memory for providerIDs array */
+  for (i=0; i<session->providerIDs->len; i++) {
+    g_free(session->providerIDs->pdata[i]);
+    session->providerIDs->pdata[i] = NULL;
+  }
+  g_ptr_array_free(session->providerIDs, TRUE);
+  session->providerIDs = NULL;
+
+  g_free(session->private);
+  session->private = NULL;
+
+  parent_class->finalize(G_OBJECT(session));
+}
+
+/*****************************************************************************/
+/* instance and class init functions                                         */
+/*****************************************************************************/
+
+static void
+lasso_session_instance_init(LassoSession *session)
+{
+  session->private = g_new (LassoSessionPrivate, 1);
+  session->private->dispose_has_run = FALSE;
+
+  session->providerIDs = g_ptr_array_new();
+  session->assertions = g_hash_table_new_full(g_str_hash, g_str_equal,
+					      (GDestroyNotify)g_free,
+					      (GDestroyNotify)lasso_node_destroy);
+}
+
+static void
+lasso_session_class_init(LassoSessionClass *class)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS(class);
+  
+  parent_class = g_type_class_peek_parent(class);
+  /* override parent class methods */
+  gobject_class->dispose  = (void *)lasso_session_dispose;
+  gobject_class->finalize = (void *)lasso_session_finalize;
+}
+
+GType lasso_session_get_type() {
+  static GType this_type = 0;
+
+  if (!this_type) {
+    static const GTypeInfo this_info = {
+      sizeof (LassoSessionClass),
+      NULL,
+      NULL,
+      (GClassInitFunc) lasso_session_class_init,
+      NULL,
+      NULL,
+      sizeof(LassoSession),
+      0,
+      (GInstanceInitFunc) lasso_session_instance_init,
+    };
+    
+    this_type = g_type_register_static(G_TYPE_OBJECT,
+				       "LassoSession",
+				       &this_info, 0);
+  }
+  return this_type;
+}
+
+LassoSession*
+lasso_session_new()
+{
+  LassoSession *session;
+
+  session = LASSO_SESSION(g_object_new(LASSO_TYPE_SESSION, NULL));
+
+  return(session);
+}
+
+LassoSession*
+lasso_session_new_from_dump(gchar *dump)
+{
+  LassoSession   *session;
+  LassoNode      *session_node;
+  LassoNode      *assertions_node, *assertion_node;
+  xmlNodePtr      assertions_xmlNode, assertion_xmlNode;
+  xmlChar        *remote_providerID;
+  GError         *err = NULL;
+
+  g_return_val_if_fail(dump != NULL, NULL);
+
+  session = LASSO_SESSION(g_object_new(LASSO_TYPE_SESSION, NULL));
+
+  /* get session */
+  session_node = lasso_node_new_from_dump(dump);
+  if (session_node == NULL) {
+    message(G_LOG_LEVEL_WARNING, "Can't create a session from dump\n");
+    return (NULL);
+  }
+
+  /* get assertions */
+  assertions_node = lasso_node_get_child(session_node,
+					 LASSO_SESSION_ASSERTIONS_NODE, NULL);
+  if (assertions_node != NULL) {
+    assertions_xmlNode = LASSO_NODE_GET_CLASS(assertions_node)->get_xmlNode(assertions_node);
+    assertion_xmlNode = assertions_xmlNode->children;
+
+    while (assertion_xmlNode != NULL) {
+      /* assertion xmlNode  */
+      if (assertion_xmlNode->type == XML_ELEMENT_NODE && \
+	  xmlStrEqual(assertion_xmlNode->name, LASSO_SESSION_ASSERTION_NODE)) {
+	/* assertion node */
+	assertion_node = lasso_node_new_from_xmlNode(assertion_xmlNode);
+	remote_providerID = lasso_node_get_attr_value(assertion_node,
+						      LASSO_SESSION_REMOTE_PROVIDERID_ATTR,
+						      &err);
+	if (remote_providerID == NULL) {
+	  message(G_LOG_LEVEL_CRITICAL, err->message);
+	  g_error_free(err);
+	  continue;
+	}
+	lasso_session_add_assertion(session, remote_providerID, assertion_node);
+	g_free(remote_providerID);
+	lasso_node_destroy(assertion_node);
+      }
+      assertion_xmlNode = assertion_xmlNode->next;
+    }
+  }
+  lasso_node_destroy(assertions_node);
+  lasso_node_destroy(session_node);
+
+  return (session);
+}
diff --git a/lasso/id-ff/session.h b/lasso/id-ff/session.h
new file mode 100644
index 00000000..c89ed19f
--- /dev/null
+++ b/lasso/id-ff/session.h
@@ -0,0 +1,93 @@
+/* $Id$ 
+ *
+ * Lasso - A free implementation of the Liberty Alliance specifications.
+ *
+ * Copyright (C) 2004 Entr'ouvert
+ * http://lasso.entrouvert.org
+ * 
+ * Authors: Nicolas Clapies <nclapies@entrouvert.com>
+ *          Valery Febvre <vfebvre@easter-eggs.com>
+ *
+ * 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
+ */
+
+#ifndef __LASSO_SESSION_H__
+#define __LASSO_SESSION_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */ 
+
+#include <lasso/xml/xml.h>
+#include <lasso/protocols/elements/assertion.h>
+
+#define LASSO_TYPE_SESSION (lasso_session_get_type())
+#define LASSO_SESSION(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), LASSO_TYPE_SESSION, LassoSession))
+#define LASSO_SESSION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), LASSO_TYPE_SESSION, LassoSessionClass))
+#define LASSO_IS_SESSION(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), LASSO_TYPE_SESSION))
+#define LASSO_IS_SESSION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), LASSO_TYPE_SESSION))
+#define LASSO_SESSION_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), LASSO_TYPE_SESSION, LassoSessionClass)) 
+
+typedef struct _LassoSession LassoSession;
+typedef struct _LassoSessionClass LassoSessionClass;
+typedef struct _LassoSessionPrivate LassoSessionPrivate;
+
+struct _LassoSession {
+  GObject parent;
+
+  /*< public >*/
+  GPtrArray  *providerIDs; /* list of the remote provider IDs for assertions hash table */
+  GHashTable *assertions;  /* hash for assertions with remote providerID as key */
+
+  /*< private >*/
+  LassoSessionPrivate *private;
+};
+
+struct _LassoSessionClass {
+  GObjectClass parent;
+};
+
+LASSO_EXPORT GType          lasso_session_get_type                             (void);
+
+LASSO_EXPORT LassoSession*  lasso_session_new                                  (void);
+
+LASSO_EXPORT LassoSession*  lasso_session_new_from_dump                        (gchar *dump);
+
+LASSO_EXPORT gint           lasso_session_add_assertion                        (LassoSession *session,
+										gchar        *remote_providerID,
+										LassoNode    *assertion);
+  
+LASSO_EXPORT LassoSession*  lasso_session_copy                                 (LassoSession *session);
+
+LASSO_EXPORT void           lasso_session_destroy                              (LassoSession *session);
+
+LASSO_EXPORT gchar*         lasso_session_dump                                 (LassoSession *session);
+
+LASSO_EXPORT LassoNode*     lasso_session_get_assertion                        (LassoSession *session,
+										gchar        *remote_providerID);
+
+LASSO_EXPORT gchar*         lasso_session_get_authentication_method            (LassoSession *session,
+										gchar        *remote_providerID);
+
+LASSO_EXPORT gchar*         lasso_session_get_next_assertion_remote_providerID (LassoSession *session);
+
+LASSO_EXPORT gint           lasso_session_remove_assertion                     (LassoSession *session,
+										gchar        *remote_providerID);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __LASSO_SESSION_H__ */