Move PASBook request handling into PASBackend itself since all

	existing backends do it exactly the same way. (Part of 32866).

	* backend/pas/pas-backend.h (PASBackendClass): add new methods for
	the various pas book requests.

	* backend/pas/pas-backend.c: Add a clients list to
	PASBackendPrivate.
	(pas_backend_create_card, etc): Add these to invoke the new
	methods.
	(process_client_requests, book_destroy_cb): Moved here and
	slightly rewritten from pas-backend-file.
	(last_client_gone): Now static.
	(add_client, remove_client): Default implementations, based on
	pas-backend-file, that add the client to/remove it from the
	backend's clients list and connect to its requests_queued signal.
	(pas_backend_init, pas_backend_dispose): Deal with the clients
	list.

	* backend/pas/pas-backend-file.c (struct _PASBackendFilePrivate):
	Remove GList *clients.
	(pas_backend_file_process_client_requests,
	pas_backend_file_book_destroy_db, pas_backend_file_add_client,
	pas_backend_file_remove_client): Gone.
	(pas_backend_file_class_init): Remove add_client/remove_client
	method initializations, add initializations for processing the
	various book requests.

	* backend/pas/pas-backend-ldap.c (struct _PASBackendLDAPPrivate):
	Remove GList *clients.
	(pas_backend_ldap_process_create_card, etc): Make these take the
	specific PAS*Request types rather than a generic PASRequest.
	(pas_backend_ldap_process_client_requests,
	pas_backend_ldap_book_destroy_db, pas_backend_ldap_add_client,
	pas_backend_ldap_remove_client): Gone.
	(pas_backend_ldap_class_init): Remove add_client/remove_client
	method initializations, add initializations for processing the
	various book requests.

svn path=/trunk/; revision=19287

5 files changed, 559 insertions, 395 deletions

diff --git a/addressbook/ChangeLog b/addressbook/ChangeLog
index da045a84db..87b410baf2 100644
--- a/addressbook/ChangeLog
+++ b/addressbook/ChangeLog
@@ -1,3 +1,44 @@
+2002-01-08  Dan Winship  <danw@ximian.com>
+
+	Move PASBook request handling into PASBackend itself since all
+	existing backends do it exactly the same way. (Part of 32866).
+
+	* backend/pas/pas-backend.h (PASBackendClass): add new methods for
+	the various pas book requests.
+
+	* backend/pas/pas-backend.c: Add a clients list to
+	PASBackendPrivate.
+	(pas_backend_create_card, etc): Add these to invoke the new
+	methods.
+	(process_client_requests, book_destroy_cb): Moved here and
+	slightly rewritten from pas-backend-file.
+	(last_client_gone): Now static.
+	(add_client, remove_client): Default implementations, based on
+	pas-backend-file, that add the client to/remove it from the
+	backend's clients list and connect to its requests_queued signal.
+	(pas_backend_init, pas_backend_dispose): Deal with the clients
+	list.
+
+	* backend/pas/pas-backend-file.c (struct _PASBackendFilePrivate):
+	Remove GList *clients.
+	(pas_backend_file_process_client_requests,
+	pas_backend_file_book_destroy_db, pas_backend_file_add_client,
+	pas_backend_file_remove_client): Gone.
+	(pas_backend_file_class_init): Remove add_client/remove_client
+	method initializations, add initializations for processing the
+	various book requests.
+
+	* backend/pas/pas-backend-ldap.c (struct _PASBackendLDAPPrivate):
+	Remove GList *clients.
+	(pas_backend_ldap_process_create_card, etc): Make these take the
+	specific PAS*Request types rather than a generic PASRequest.
+	(pas_backend_ldap_process_client_requests,
+	pas_backend_ldap_book_destroy_db, pas_backend_ldap_add_client,
+	pas_backend_ldap_remove_client): Gone.
+	(pas_backend_ldap_class_init): Remove add_client/remove_client
+	method initializations, add initializations for processing the
+	various book requests.
+
 2003-01-07  Chris Toshok  <toshok@ximian.com>
 
 	* backend/pas/evolutionperson.schema: fix the SYNTAX for the
diff --git a/addressbook/backend/pas/pas-backend-file.c b/addressbook/backend/pas/pas-backend-file.c
index c5c8251ad9..852352191d 100644
--- a/addressbook/backend/pas/pas-backend-file.c
+++ b/addressbook/backend/pas/pas-backend-file.c
@@ -51,13 +51,10 @@ typedef struct _PASBackendFileSearchContext PASBackendFileSearchContext;
 typedef struct _PasBackendFileChangeContext PASBackendFileChangeContext;
 
 struct _PASBackendFilePrivate {
-	GList    *clients;
-	gboolean  loaded;
 	char     *uri;
 	char     *filename;
 	DB       *file_db;
 	EList    *book_views;
-	gboolean  writable;
 	GHashTable *address_lists;
 	PASBackendSummary *summary;
 };
@@ -349,9 +346,6 @@ pas_backend_file_search (PASBackendFile  	      *bf,
 	PASBackendFileBookView *view = (PASBackendFileBookView *)cnstview;
 	gboolean search_needed;
 
-	if (!bf->priv->loaded)
-		return;
-
 	search_needed = TRUE;
 
 	if ( ! strcmp (view->search, "(contains \"x-evolution-any-field\" \"\")"))
@@ -487,9 +481,6 @@ pas_backend_file_changes (PASBackendFile  	      *bf,
 	memset (&id_dbt, 0, sizeof (id_dbt));
 	memset (&vcard_dbt, 0, sizeof (vcard_dbt));
 
-	if (!bf->priv->loaded)
-		return;
-
 	/* Find the changed ids */
 	dirname = g_strdup (bf->priv->filename);
 	slash = strrchr (dirname, '/');
@@ -991,8 +982,6 @@ pas_backend_file_process_get_book_view (PASBackend *backend,
 	PASBackendFileBookView view;
 	EIterator *iterator;
 
-	g_return_if_fail (req->listener != NULL);
-	
 	bonobo_object_ref(BONOBO_OBJECT(book));
 
 	book_view = pas_book_view_new (req->listener);
@@ -1013,6 +1002,9 @@ pas_backend_file_process_get_book_view (PASBackend *backend,
 		    : GNOME_Evolution_Addressbook_BookListener_CardNotFound /* XXX */),
 		   book_view);
 
+	if (!pas_backend_is_loaded (backend))
+		return;
+
 	iterator = e_list_get_iterator(bf->priv->book_views);
 	e_iterator_last(iterator);
 	pas_backend_file_search (bf, book, e_iterator_get(iterator), FALSE);
@@ -1029,8 +1021,6 @@ pas_backend_file_process_get_completion_view (PASBackend *backend,
 	PASBackendFileBookView view;
 	EIterator *iterator;
 
-	g_return_if_fail (req->listener != NULL);
-	
 	bonobo_object_ref(BONOBO_OBJECT(book));
 
 	book_view = pas_book_view_new (req->listener);
@@ -1051,6 +1041,9 @@ pas_backend_file_process_get_completion_view (PASBackend *backend,
 		    : GNOME_Evolution_Addressbook_BookListener_CardNotFound /* XXX */),
 		   book_view);
 
+	if (!pas_backend_is_loaded (backend))
+		return;
+
 	iterator = e_list_get_iterator(bf->priv->book_views);
 	e_iterator_last(iterator);
 	pas_backend_file_search (bf, book, e_iterator_get(iterator), TRUE);
@@ -1068,8 +1061,6 @@ pas_backend_file_process_get_changes (PASBackend *backend,
 	PASBackendFileChangeContext ctx;
 	EIterator *iterator;
 
-	g_return_if_fail (req->listener != NULL);
-
 	bonobo_object_ref(BONOBO_OBJECT(book));
 
 	book_view = pas_book_view_new (req->listener);
@@ -1096,6 +1087,9 @@ pas_backend_file_process_get_changes (PASBackend *backend,
 	
 	e_list_append(bf->priv->book_views, &view);
 
+	if (!pas_backend_is_loaded (backend))
+		return;
+
 	iterator = e_list_get_iterator(bf->priv->book_views);
 	e_iterator_last(iterator);
 	pas_backend_file_changes (bf, book, e_iterator_get(iterator));
@@ -1156,75 +1150,6 @@ pas_backend_file_process_get_supported_fields (PASBackend *backend,
 					       fields);
 }
 
-static void
-pas_backend_file_process_client_requests (PASBook *book)
-{
-	PASBackend *backend;
-	PASRequest *req;
-
-	backend = pas_book_get_backend (book);
-
-	req = pas_book_pop_request (book);
-	if (req == NULL)
-		return;
-
-	switch (req->op) {
-	case CreateCard:
-		pas_backend_file_process_create_card (backend, book, (PASCreateCardRequest*)req);
-		break;
-
-	case RemoveCard:
-		pas_backend_file_process_remove_card (backend, book, (PASRemoveCardRequest*)req);
-		break;
-
-	case ModifyCard:
-		pas_backend_file_process_modify_card (backend, book, (PASModifyCardRequest*)req);
-		break;
-
-	case CheckConnection:
-		pas_backend_file_process_check_connection (backend, book, (PASCheckConnectionRequest*)req);
-		break;
-
-	case GetVCard:
-		pas_backend_file_process_get_vcard (backend, book, (PASGetVCardRequest*)req);
-		break;
-		
-	case GetCursor:
-		pas_backend_file_process_get_cursor (backend, book, (PASGetCursorRequest*)req);
-		break;
-		
-	case GetBookView:
-		pas_backend_file_process_get_book_view (backend, book, (PASGetBookViewRequest*)req);
-		break;
-
-	case GetCompletionView:
-		pas_backend_file_process_get_completion_view (backend, book, (PASGetCompletionViewRequest*)req);
-		break;
-
-	case GetChanges:
-		pas_backend_file_process_get_changes (backend, book, (PASGetChangesRequest*)req);
-		break;
-
-	case AuthenticateUser:
-		pas_backend_file_process_authenticate_user (backend, book, (PASAuthenticateUserRequest*)req);
-		break;
-
-	case GetSupportedFields:
-		pas_backend_file_process_get_supported_fields (backend, book, (PASGetSupportedFieldsRequest*)req);
-		break;
-	}
-
-	pas_book_free_request (req);
-}
-
-static void
-pas_backend_file_book_destroy_cb (gpointer data, GObject *where_book_was)
-{
-	PASBackendFile *backend = PAS_BACKEND_FILE (data);
-
-	pas_backend_remove_client (PAS_BACKEND (backend), (PASBook*)where_book_was);
-}
-
 /*
 ** versions:
 **
@@ -1377,8 +1302,6 @@ pas_backend_file_load_uri (PASBackend             *backend,
 	struct stat sb;
 	char *summary_filename;
 
-	g_assert (bf->priv->loaded == FALSE);
-
 	db_version (&major, &minor, &patch);
 
 	if (major != 3 ||
@@ -1445,14 +1368,9 @@ pas_backend_file_load_uri (PASBackend             *backend,
 		return GNOME_Evolution_Addressbook_BookListener_OtherError;
 	}
 
-	bf->priv->writable = writable;
-
-	if (pas_backend_file_maybe_upgrade_db (bf))
-		bf->priv->loaded = TRUE;
-	else {
+	if (!pas_backend_file_maybe_upgrade_db (bf)) {
 		db->close (db, 0);
 		bf->priv->file_db = NULL;
-		bf->priv->writable = FALSE;
 		return GNOME_Evolution_Addressbook_BookListener_OtherError;
 	}
 
@@ -1465,7 +1383,6 @@ pas_backend_file_load_uri (PASBackend             *backend,
 	if (stat (bf->priv->filename, &sb) == -1) {
 		db->close (db, 0);
 		bf->priv->file_db = NULL;
-		bf->priv->writable = FALSE;
 		return GNOME_Evolution_Addressbook_BookListener_OtherError;
 	}
 	db_mtime = sb.st_mtime;
@@ -1479,6 +1396,8 @@ pas_backend_file_load_uri (PASBackend             *backend,
 		build_summary (bf->priv);
 	}
 
+	pas_backend_set_is_loaded (backend, TRUE);
+	pas_backend_set_is_writable (backend, writable);
 	return GNOME_Evolution_Addressbook_BookListener_Success;
 }
 
@@ -1490,96 +1409,13 @@ pas_backend_file_get_uri (PASBackend *backend)
 
 	bf = PAS_BACKEND_FILE (backend);
 
-	g_return_val_if_fail (bf->priv->loaded, NULL);
 	g_assert (bf->priv->uri != NULL);
 
 	return bf->priv->uri;
 }
 
-static gboolean
-pas_backend_file_add_client (PASBackend             *backend,
-			     GNOME_Evolution_Addressbook_BookListener  listener)
-{
-	PASBackendFile *bf;
-	PASBook        *book;
-
-	g_assert (backend != NULL);
-	g_assert (PAS_IS_BACKEND_FILE (backend));
-
-	bf = PAS_BACKEND_FILE (backend);
-
-	book = pas_book_new (backend, listener);
-
-	if (!book) {
-		if (!bf->priv->clients)
-			pas_backend_last_client_gone (backend);
-
-		return FALSE;
-	}
-
-	g_object_weak_ref (G_OBJECT (book), pas_backend_file_book_destroy_cb, backend);
-
-	g_signal_connect (book, "requests_queued",
-			  G_CALLBACK (pas_backend_file_process_client_requests), NULL);
-
-	bf->priv->clients = g_list_prepend (
-		bf->priv->clients, book);
-
-	if (bf->priv->loaded) {
-		pas_book_respond_open (
-			book, GNOME_Evolution_Addressbook_BookListener_Success);
-		if (bf->priv->writable)
-			pas_book_report_writable (book, bf->priv->writable);
-	} else {
-		pas_book_respond_open (
-		       book, GNOME_Evolution_Addressbook_BookListener_OtherError);
-	}
-
-	bonobo_object_unref (BONOBO_OBJECT (book));
-	
-	return TRUE;
-}
-
-static void
-pas_backend_file_remove_client (PASBackend             *backend,
-				PASBook                *book)
-{
-	PASBackendFile *bf;
-	GList *l;
-	PASBook *lbook;
-
-	g_return_if_fail (backend != NULL);
-	g_return_if_fail (PAS_IS_BACKEND_FILE (backend));
-	g_return_if_fail (book != NULL);
-	g_return_if_fail (PAS_IS_BOOK (book));
-
-	bf = PAS_BACKEND_FILE (backend);
-
-	/* Find the book in the list of clients */
-
-	for (l = bf->priv->clients; l; l = l->next) {
-		lbook = PAS_BOOK (l->data);
-
-		if (lbook == book)
-			break;
-	}
-
-	g_assert (l != NULL);
-
-	/* Disconnect */
-
-	bf->priv->clients = g_list_remove_link (bf->priv->clients, l);
-	g_list_free_1 (l);
-
-	/* When all clients go away, notify the parent factory about it so that
-	 * it may decide whether to kill the backend or not.
-	 */
-	if (!bf->priv->clients)
-		pas_backend_last_client_gone (backend);
-}
-
 static char *
-pas_backend_file_get_static_capabilities (PASBackend             *backend)
+pas_backend_file_get_static_capabilities (PASBackend *backend)
 {
 	return g_strdup("local,do-initial-query,cache-completions");
 }
@@ -1648,10 +1484,20 @@ pas_backend_file_class_init (PASBackendFileClass *klass)
 	/* Set the virtual methods. */
 	parent_class->load_uri                = pas_backend_file_load_uri;
 	parent_class->get_uri                 = pas_backend_file_get_uri;
-	parent_class->add_client              = pas_backend_file_add_client;
-	parent_class->remove_client           = pas_backend_file_remove_client;
 	parent_class->get_static_capabilities = pas_backend_file_get_static_capabilities;
 
+	parent_class->create_card             = pas_backend_file_process_create_card;
+	parent_class->remove_card             = pas_backend_file_process_remove_card;
+	parent_class->modify_card             = pas_backend_file_process_modify_card;
+	parent_class->check_connection        = pas_backend_file_process_check_connection;
+	parent_class->get_vcard               = pas_backend_file_process_get_vcard;
+	parent_class->get_cursor              = pas_backend_file_process_get_cursor;
+	parent_class->get_book_view           = pas_backend_file_process_get_book_view;
+	parent_class->get_completion_view     = pas_backend_file_process_get_completion_view;
+	parent_class->get_changes             = pas_backend_file_process_get_changes;
+	parent_class->authenticate_user       = pas_backend_file_process_authenticate_user;
+	parent_class->get_supported_fields    = pas_backend_file_process_get_supported_fields;
+
 	object_class->dispose = pas_backend_file_dispose;
 }
 
@@ -1661,11 +1507,8 @@ pas_backend_file_init (PASBackendFile *backend)
 	PASBackendFilePrivate *priv;
 
 	priv             = g_new0 (PASBackendFilePrivate, 1);
-	priv->loaded     = FALSE;
-	priv->clients    = NULL;
 	priv->book_views = e_list_new((EListCopyFunc) pas_backend_file_book_view_copy, (EListFreeFunc) pas_backend_file_book_view_free, NULL);
 	priv->uri        = NULL;
-	priv->writable   = FALSE;
 
 	backend->priv = priv;
 }
diff --git a/addressbook/backend/pas/pas-backend-ldap.c b/addressbook/backend/pas/pas-backend-ldap.c
index c09495fb22..0a609450ab 100644
--- a/addressbook/backend/pas/pas-backend-ldap.c
+++ b/addressbook/backend/pas/pas-backend-ldap.c
@@ -85,7 +85,6 @@ typedef struct LDAPOp LDAPOp;
 struct _PASBackendLDAPPrivate {
 	char     *uri;
 	gboolean connected;
-	GList    *clients;
 
 	gchar    *ldap_host;   /* the hostname of the server */
 	int      ldap_port;    /* the port of the server */
@@ -117,8 +116,6 @@ struct _PASBackendLDAPPrivate {
 	gboolean calEntrySupported;
 	gboolean evolutionPersonChecked;
 
-	gboolean writable;
-
 	/* our operations */
 	GHashTable *id_to_op;
 	int active_ops;
@@ -485,7 +482,7 @@ check_schema_support (PASBackendLDAP *bl)
 			   of draconian acl's that keep subschema
 			   reads from working until the user is
 			   authed. */
-			if (!bl->priv->writable) {
+			if (!pas_backend_is_writable (PAS_BACKEND (bl)) {
 				g_warning ("subschema read returned nothing before successful auth");
 				bl->priv->evolutionPersonChecked = FALSE;
 			}
@@ -691,6 +688,7 @@ pas_backend_ldap_connect (PASBackendLDAP *bl)
 			if (!bl->priv->evolutionPersonChecked)
 				check_schema_support (bl);
 
+			pas_backend_set_is_loaded (PAS_BACKEND (bl), TRUE);
 			return GNOME_Evolution_Addressbook_BookListener_Success;
 		}
 		else
@@ -1167,7 +1165,7 @@ create_card_dtor (LDAPOp *op)
 static void
 pas_backend_ldap_process_create_card (PASBackend *backend,
 				      PASBook    *book,
-				      PASRequest *req)
+				      PASCreateCardRequest *req)
 {
 	LDAPCreateOp *create_op = g_new (LDAPCreateOp, 1);
 	PASBackendLDAP *bl = PAS_BACKEND_LDAP (backend);
@@ -1182,9 +1180,9 @@ pas_backend_ldap_process_create_card (PASBackend *backend,
 
 	book_view = find_book_view (bl);
 
-	printf ("vcard = %s\n", req->create.vcard);
+	printf ("vcard = %s\n", req->vcard);
 
-	new_ecard = e_card_new (req->create.vcard);
+	new_ecard = e_card_new (req->vcard);
 	create_op->new_card = e_card_simple_new (new_ecard);
 
 	create_op->dn = create_dn_from_ecard (create_op->new_card, bl->priv->ldap_rootdn);
@@ -1350,7 +1348,7 @@ remove_card_dtor (LDAPOp *op)
 static void
 pas_backend_ldap_process_remove_card (PASBackend *backend,
 				      PASBook    *book,
-				      PASRequest *req)
+				      PASRemoveCardRequest *req)
 {
 	LDAPRemoveOp *remove_op = g_new (LDAPRemoveOp, 1);
 	PASBackendLDAP *bl = PAS_BACKEND_LDAP (backend);
@@ -1360,7 +1358,7 @@ pas_backend_ldap_process_remove_card (PASBackend *backend,
 
 	book_view = find_book_view (bl);
 
-	remove_op->id = g_strdup (req->remove.id);
+	remove_op->id = g_strdup (req->id);
 
 	do {
 		book_view_notify_status (book_view, _("Removing card from LDAP server..."));
@@ -1579,7 +1577,7 @@ modify_card_dtor (LDAPOp *op)
 static void
 pas_backend_ldap_process_modify_card (PASBackend *backend,
 				      PASBook    *book,
-				      PASRequest *req)
+				      PASModifyCardRequest *req)
 {
 	LDAPModifyOp *modify_op = g_new0 (LDAPModifyOp, 1);
 	PASBackendLDAP *bl = PAS_BACKEND_LDAP (backend);
@@ -1591,7 +1589,7 @@ pas_backend_ldap_process_modify_card (PASBackend *backend,
 
 	book_view = find_book_view (bl);
 
-	modify_op->vcard = g_strdup (req->modify.vcard);
+	modify_op->vcard = g_strdup (req->vcard);
 	new_ecard = e_card_new (modify_op->vcard);
 	modify_op->card = e_card_simple_new (new_ecard);
 	g_object_unref (new_ecard);
@@ -1691,7 +1689,7 @@ get_vcard_dtor (LDAPOp *op)
 static void
 pas_backend_ldap_process_get_vcard (PASBackend *backend,
 				    PASBook *book,
-				    PASRequest *req)
+				    PASGetVCardRequest *req)
 {
 	LDAPGetVCardOp *get_vcard_op = g_new0 (LDAPGetVCardOp, 1);
 	PASBackendLDAP *bl = PAS_BACKEND_LDAP (backend);
@@ -1703,7 +1701,7 @@ pas_backend_ldap_process_get_vcard (PASBackend *backend,
 	book_view = find_book_view (bl);
 
 	do {	
-		ldap_error = ldap_search_ext (ldap, req->get_vcard.id,
+		ldap_error = ldap_search_ext (ldap, req->id,
 					      LDAP_SCOPE_BASE,
 					      "(objectclass=*)",
 					      NULL, 0, NULL, NULL,
@@ -1851,7 +1849,7 @@ get_cursor_dtor (LDAPOp *op)
 static void
 pas_backend_ldap_process_get_cursor (PASBackend *backend,
 				     PASBook    *book,
-				     PASRequest *req)
+				     PASGetCursorRequest *req)
 {
 	PASBackendLDAP *bl = PAS_BACKEND_LDAP (backend);
 	LDAP           *ldap = bl->priv->ldap;
@@ -2743,7 +2741,7 @@ build_card_from_entry (LDAP *ldap, LDAPMessage *e, GList **existing_objectclasse
 		struct prop_info *info = NULL;
 		char **values;
 
-		if (existing_objectclasses && !strcasecmp (attr, "objectclass")) {
+		if (existing_objectclasses && !g_ascii_strcasecmp (attr, "objectclass")) {
 			values = ldap_get_values (ldap, e, attr);
 			for (i = 0; values[i]; i ++)
 				*existing_objectclasses = g_list_append (*existing_objectclasses, g_strdup (values[i]));
@@ -3056,33 +3054,27 @@ pas_backend_ldap_search (PASBackendLDAP  	*bl,
 }
 
 static void
-pas_backend_ldap_process_get_book_view (PASBackend *backend,
-					PASBook    *book,
-					PASRequest *req)
+ldap_get_view (PASBackend *backend,
+	       PASBook    *book,
+	       const char *search,
+	       GNOME_Evolution_Addressbook_BookViewListener listener,
+	       int         limit)
 {
 	PASBackendLDAP *bl = PAS_BACKEND_LDAP (backend);
 	PASBookView       *book_view;
 	PASBackendLDAPBookView *view;
 
-	g_return_if_fail (req->get_book_view.listener != NULL);
-
-	book_view = pas_book_view_new (req->get_book_view.listener);
+	book_view = pas_book_view_new (listener);
 
 	bonobo_object_ref(BONOBO_OBJECT(book));
 	g_object_weak_ref (G_OBJECT (book_view), view_destroy, book);
 
 	view = g_new0(PASBackendLDAPBookView, 1);
 	view->book_view = book_view;
-	view->search = g_strdup(req->get_book_view.search);
+	view->search = g_strdup(search);
 	view->card_sexp = pas_backend_card_sexp_new (view->search);
 	view->blpriv = bl->priv;
-
-	if (req->op == GetCompletionView) {
-		view->limit = MIN (bl->priv->ldap_limit, 100);
-	}
-	else {
-		view->limit = bl->priv->ldap_limit;
-	}
+	view->limit = limit;
 
 	e_list_append(bl->priv->book_views, view);
 
@@ -3098,9 +3090,39 @@ pas_backend_ldap_process_get_book_view (PASBackend *backend,
 }
 
 static void
+pas_backend_ldap_process_get_book_view (PASBackend *backend,
+					PASBook    *book,
+					PASGetBookViewRequest *req)
+{
+	PASBackendLDAP *bl = PAS_BACKEND_LDAP (backend);
+
+	ldap_get_view (backend, book, req->search, req->listener,
+		       bl->priv->ldap_limit);
+}
+
+static void
+pas_backend_ldap_process_get_completion_view (PASBackend *backend,
+					      PASBook    *book,
+					      PASGetCompletionViewRequest *req)
+{
+	PASBackendLDAP *bl = PAS_BACKEND_LDAP (backend);
+
+	ldap_get_view (backend, book, req->search, req->listener, 
+		       MIN (bl->priv->ldap_limit, 100));
+}
+
+static void
+pas_backend_ldap_process_get_changes (PASBackend *backend,
+				      PASBook    *book,
+				      PASGetChangesRequest *req)
+{
+	/* FIXME: implement */
+}
+
+static void
 pas_backend_ldap_process_check_connection (PASBackend *backend,
 					   PASBook    *book,
-					   PASRequest *req)
+					   PASCheckConnectionRequest *req)
 {
 	PASBackendLDAP *bl = PAS_BACKEND_LDAP (backend);
 
@@ -3110,15 +3132,15 @@ pas_backend_ldap_process_check_connection (PASBackend *backend,
 static void
 pas_backend_ldap_process_authenticate_user (PASBackend *backend,
 					    PASBook    *book,
-					    PASRequest *req)
+					    PASAuthenticateUserRequest *req)
 {
 	PASBackendLDAP *bl = PAS_BACKEND_LDAP (backend);
 	int ldap_error;
 	char *dn = NULL;
 
-	if (!strcmp (req->auth_user.auth_method, "ldap/simple-email")) {
+	if (!strcmp (req->auth_method, "ldap/simple-email")) {
 		LDAPMessage    *res, *e;
-		char *query = g_strdup_printf ("(mail=%s)", req->auth_user.user);
+		char *query = g_strdup_printf ("(mail=%s)", req->user);
 
 		ldap_error = ldap_search_s (bl->priv->ldap,
 					    bl->priv->ldap_rootdn,
@@ -3144,46 +3166,49 @@ pas_backend_ldap_process_authenticate_user (PASBackend *backend,
 			return;
 		}
 	}
-	else if (!strcmp (req->auth_user.auth_method, "ldap/simple-binddn")) {
-		dn = g_strdup (req->auth_user.user);
+	else if (!strcmp (req->auth_method, "ldap/simple-binddn")) {
+		dn = g_strdup (req->user);
 	}
 
 	/* now authenticate against the DN we were either supplied or queried for */
 	printf ("authenticating as %s\n", dn);
 	ldap_error = ldap_simple_bind_s(bl->priv->ldap,
 					dn,
-					req->auth_user.passwd);
+					req->passwd);
 
 	bl->priv->auth_dn = dn;
-	bl->priv->auth_passwd = g_strdup (req->auth_user.passwd);
+	bl->priv->auth_passwd = g_strdup (req->passwd);
 
 	pas_book_respond_authenticate_user (book,
 					    ldap_error_to_response (ldap_error));
 
-	bl->priv->writable = (ldap_error == LDAP_SUCCESS);
-
-	/* if the bind was successful we force a requery on the root
-	   dse since some ldap servers are set up such that they don't
-	   report anything (including the schema DN) until the user is
-	   authenticated */
-	if (!bl->priv->evolutionPersonChecked && ldap_error == LDAP_SUCCESS) {
-		ldap_error = query_ldap_root_dse (bl);
-
-		if (LDAP_SUCCESS == ldap_error) {
-			if (!bl->priv->evolutionPersonChecked)
-				check_schema_support (bl);
+	if (ldap_error == LDAP_SUCCESS) {
+		pas_backend_set_writable (backend, TRUE);
+
+		/* force a requery on the root dse since some ldap
+		   servers are set up such that they don't report
+		   anything (including the schema DN) until the user
+		   is authenticated */
+		if (!bl->priv->evolutionPersonChecked) {
+			ldap_error = query_ldap_root_dse (bl);
+
+			if (LDAP_SUCCESS == ldap_error) {
+				if (!bl->priv->evolutionPersonChecked)
+					check_schema_support (bl);
+			}
+			else
+				g_warning ("Failed to perform root dse query after authenticating, (ldap_error 0x%02x)", ldap_error);
 		}
-		else
-			g_warning ("Failed to perform root dse query after authenticating, (ldap_error 0x%02x)", ldap_error);
+
+		pas_book_report_writable (book, TRUE);
 	}
 
-	pas_book_report_writable (book, bl->priv->writable);
 }
 
 static void
 pas_backend_ldap_process_get_supported_fields (PASBackend *backend,
 					       PASBook    *book,
-					       PASRequest *req)
+					       PASGetSupportedFieldsRequest *req)
 
 {
 	PASBackendLDAP *bl = PAS_BACKEND_LDAP (backend);
@@ -3193,76 +3218,6 @@ pas_backend_ldap_process_get_supported_fields (PASBackend *backend,
 					       bl->priv->supported_fields);
 }
 
-static void
-pas_backend_ldap_process_client_requests (PASBook *book)
-{
-	PASBackend *backend;
-	PASRequest *req;
-
-	backend = pas_book_get_backend (book);
-
-	req = pas_book_pop_request (book);
-	if (req == NULL)
-		return;
-
-	switch (req->op) {
-	case CreateCard:
-		pas_backend_ldap_process_create_card (backend, book, req);
-		break;
-
-	case RemoveCard:
-		pas_backend_ldap_process_remove_card (backend, book, req);
-		break;
-
-	case ModifyCard:
-		pas_backend_ldap_process_modify_card (backend, book, req);
-		break;
-
-	case CheckConnection:
-		pas_backend_ldap_process_check_connection (backend, book, req);
-		break;
-
-	case GetVCard:
-		pas_backend_ldap_process_get_vcard (backend, book, req);
-		break;
-
-	case GetCursor:
-		pas_backend_ldap_process_get_cursor (backend, book, req);
-		break;
-
-	case GetBookView:
-		pas_backend_ldap_process_get_book_view (backend, book, req);
-		break;
-
-	case GetCompletionView:
-		/* we don't support summaries so completion view requests are the same as book view requests */
-		pas_backend_ldap_process_get_book_view (backend, book, req);
-		break;
-
-	case GetChanges:
-		/* FIXME: Code this. */
-		break;
-
-	case AuthenticateUser:
-		pas_backend_ldap_process_authenticate_user (backend, book, req);
-		break;
-
-	case GetSupportedFields:
-		pas_backend_ldap_process_get_supported_fields (backend, book, req);
-		break;
-	}
-
-	pas_book_free_request (req);
-}
-
-static void
-pas_backend_ldap_book_destroy_cb (gpointer data, GObject *where_book_was)
-{
-	PASBackendLDAP *backend = PAS_BACKEND_LDAP (data);
-
-	pas_backend_remove_client (PAS_BACKEND (backend), (PASBook*)where_book_was);
-}
-
 static GNOME_Evolution_Addressbook_BookListener_CallStatus
 pas_backend_ldap_load_uri (PASBackend             *backend,
 			   const char             *uri)
@@ -3354,73 +3309,6 @@ pas_backend_ldap_get_uri (PASBackend *backend)
 	return bl->priv->uri;
 }
 
-static gboolean
-pas_backend_ldap_add_client (PASBackend             *backend,
-			     GNOME_Evolution_Addressbook_BookListener  listener)
-{
-	PASBackendLDAP *bl;
-	PASBook        *book;
-
-	g_assert (backend != NULL);
-	g_assert (PAS_IS_BACKEND_LDAP (backend));
-
-	bl = PAS_BACKEND_LDAP (backend);
-
-	book = pas_book_new (backend, listener);
-
-	if (!book) {
-		if (!bl->priv->clients)
-			pas_backend_last_client_gone (backend);
-
-		return FALSE;
-	}
-
-	g_object_weak_ref (G_OBJECT (book), pas_backend_ldap_book_destroy_cb, backend);
-
-	g_signal_connect (book, "requests_queued",
-			  G_CALLBACK (pas_backend_ldap_process_client_requests), NULL);
-
-	bl->priv->clients = g_list_prepend (
-		bl->priv->clients, book);
-
-	if (bl->priv->connected) {
-		pas_book_respond_open (
-			book, GNOME_Evolution_Addressbook_BookListener_Success);
-	} else {
-		pas_book_respond_open (
-			book, GNOME_Evolution_Addressbook_BookListener_OtherError);
-	}
-
-	pas_book_report_writable (book, bl->priv->writable);
-
-	bonobo_object_unref (BONOBO_OBJECT (book));
-	
-	return TRUE;
-}
-
-static void
-pas_backend_ldap_remove_client (PASBackend             *backend,
-				PASBook                *book)
-{
-	PASBackendLDAP *bl;
-
-	g_return_if_fail (backend != NULL);
-	g_return_if_fail (PAS_IS_BACKEND_LDAP (backend));
-	g_return_if_fail (book != NULL);
-	g_return_if_fail (PAS_IS_BOOK (book));
-
-	bl = PAS_BACKEND_LDAP (backend);
-
-	/* Disconnect */
-	bl->priv->clients = g_list_remove (bl->priv->clients, book);
-
-	/* When all clients go away, notify the parent factory about it so that
-	 * it may decide whether to kill the backend or not.
-	 */
-	if (!bl->priv->clients)
-		pas_backend_last_client_gone (backend);
-}
-
 static char *
 pas_backend_ldap_get_static_capabilities (PASBackend *backend)
 {
@@ -3515,10 +3403,20 @@ pas_backend_ldap_class_init (PASBackendLDAPClass *klass)
 	/* Set the virtual methods. */
 	parent_class->load_uri                = pas_backend_ldap_load_uri;
 	parent_class->get_uri                 = pas_backend_ldap_get_uri;
-	parent_class->add_client              = pas_backend_ldap_add_client;
-	parent_class->remove_client           = pas_backend_ldap_remove_client;
 	parent_class->get_static_capabilities = pas_backend_ldap_get_static_capabilities;
 
+	parent_class->create_card             = pas_backend_ldap_process_create_card;
+	parent_class->remove_card             = pas_backend_ldap_process_remove_card;
+	parent_class->modify_card             = pas_backend_ldap_process_modify_card;
+	parent_class->check_connection        = pas_backend_ldap_process_check_connection;
+	parent_class->get_vcard               = pas_backend_ldap_process_get_vcard;
+	parent_class->get_cursor              = pas_backend_ldap_process_get_cursor;
+	parent_class->get_book_view           = pas_backend_ldap_process_get_book_view;
+	parent_class->get_completion_view     = pas_backend_ldap_process_get_completion_view;
+	parent_class->get_changes             = pas_backend_ldap_process_get_changes;
+	parent_class->authenticate_user       = pas_backend_ldap_process_authenticate_user;
+	parent_class->get_supported_fields    = pas_backend_ldap_process_get_supported_fields;
+
 	object_class->dispose = pas_backend_ldap_dispose;
 }
 
diff --git a/addressbook/backend/pas/pas-backend.c b/addressbook/backend/pas/pas-backend.c
index 6d64ba938b..513632c909 100644
--- a/addressbook/backend/pas/pas-backend.c
+++ b/addressbook/backend/pas/pas-backend.c
@@ -10,6 +10,11 @@
 #include "pas-backend.h"
 #include "pas-marshal.h"
 
+struct _PASBackendPrivate {
+	GList *clients;
+	gboolean loaded, writable;
+};
+
 /* Signal IDs */
 enum {
 	LAST_CLIENT_GONE,
@@ -18,6 +23,7 @@ enum {
 
 static guint pas_backend_signals[LAST_SIGNAL];
 
+static GObjectClass *parent_class;
 
 gboolean
 pas_backend_construct (PASBackend *backend)
@@ -32,6 +38,7 @@ pas_backend_load_uri (PASBackend             *backend,
 	g_return_val_if_fail (backend != NULL, FALSE);
 	g_return_val_if_fail (PAS_IS_BACKEND (backend), FALSE);
 	g_return_val_if_fail (uri != NULL, FALSE);
+	g_return_val_if_fail (backend->priv->loaded == FALSE, FALSE);
 
 	g_assert (PAS_BACKEND_GET_CLASS (backend)->load_uri != NULL);
 
@@ -51,12 +58,279 @@ pas_backend_get_uri (PASBackend *backend)
 {
 	g_return_val_if_fail (backend != NULL, NULL);
 	g_return_val_if_fail (PAS_IS_BACKEND (backend), NULL);
+	g_return_val_if_fail (backend->priv->loaded, NULL);
 
 	g_assert (PAS_BACKEND_GET_CLASS (backend)->get_uri != NULL);
 
 	return (* PAS_BACKEND_GET_CLASS (backend)->get_uri) (backend);
 }
 
+
+void
+pas_backend_create_card (PASBackend *backend,
+			 PASBook    *book,
+			 PASCreateCardRequest *req)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	g_return_if_fail (PAS_IS_BOOK (book));
+	g_return_if_fail (req != NULL && req->vcard != NULL);
+
+	g_assert (PAS_BACKEND_GET_CLASS (backend)->create_card != NULL);
+
+	return (* PAS_BACKEND_GET_CLASS (backend)->create_card) (backend, book, req);
+}
+
+void
+pas_backend_remove_card (PASBackend *backend,
+			 PASBook *book,
+			 PASRemoveCardRequest *req)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	g_return_if_fail (PAS_IS_BOOK (book));
+	g_return_if_fail (req != NULL && req->id != NULL);
+
+	g_assert (PAS_BACKEND_GET_CLASS (backend)->remove_card != NULL);
+
+	return (* PAS_BACKEND_GET_CLASS (backend)->remove_card) (backend, book, req);
+}
+
+void
+pas_backend_modify_card (PASBackend *backend,
+			 PASBook *book,
+			 PASModifyCardRequest *req)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	g_return_if_fail (PAS_IS_BOOK (book));
+	g_return_if_fail (req != NULL && req->vcard != NULL);
+
+	g_assert (PAS_BACKEND_GET_CLASS (backend)->modify_card != NULL);
+
+	return (* PAS_BACKEND_GET_CLASS (backend)->modify_card) (backend, book, req);
+}
+
+void
+pas_backend_check_connection (PASBackend *backend,
+			      PASBook *book,
+			      PASCheckConnectionRequest *req)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	g_return_if_fail (PAS_IS_BOOK (book));
+	g_return_if_fail (req != NULL);
+
+	g_assert (PAS_BACKEND_GET_CLASS (backend)->check_connection != NULL);
+
+	return (* PAS_BACKEND_GET_CLASS (backend)->check_connection) (backend, book, req);
+}
+
+void
+pas_backend_get_vcard (PASBackend *backend,
+		       PASBook *book,
+		       PASGetVCardRequest *req)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	g_return_if_fail (PAS_IS_BOOK (book));
+	g_return_if_fail (req != NULL && req->id != NULL);
+
+	g_assert (PAS_BACKEND_GET_CLASS (backend)->get_vcard != NULL);
+
+	return (* PAS_BACKEND_GET_CLASS (backend)->get_vcard) (backend, book, req);
+}
+
+void
+pas_backend_get_cursor (PASBackend *backend,
+			PASBook *book,
+			PASGetCursorRequest *req)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	g_return_if_fail (PAS_IS_BOOK (book));
+	g_return_if_fail (req != NULL && req->search != NULL);
+
+	g_assert (PAS_BACKEND_GET_CLASS (backend)->get_cursor != NULL);
+
+	return (* PAS_BACKEND_GET_CLASS (backend)->get_cursor) (backend, book, req);
+}
+
+void
+pas_backend_get_book_view (PASBackend *backend,
+			   PASBook *book,
+			   PASGetBookViewRequest *req)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	g_return_if_fail (PAS_IS_BOOK (book));
+	g_return_if_fail (req != NULL && req->search != NULL && req->listener != CORBA_OBJECT_NIL);
+
+	g_assert (PAS_BACKEND_GET_CLASS (backend)->get_book_view != NULL);
+
+	return (* PAS_BACKEND_GET_CLASS (backend)->get_book_view) (backend, book, req);
+}
+
+void
+pas_backend_get_completion_view (PASBackend *backend,
+				 PASBook *book,
+				 PASGetCompletionViewRequest *req)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	g_return_if_fail (PAS_IS_BOOK (book));
+	g_return_if_fail (req != NULL && req->search != NULL && req->listener != CORBA_OBJECT_NIL);
+
+	g_assert (PAS_BACKEND_GET_CLASS (backend)->get_completion_view != NULL);
+
+	return (* PAS_BACKEND_GET_CLASS (backend)->get_completion_view) (backend, book, req);
+}
+
+void
+pas_backend_get_changes (PASBackend *backend,
+			 PASBook *book,
+			 PASGetChangesRequest *req)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	g_return_if_fail (PAS_IS_BOOK (book));
+	g_return_if_fail (req != NULL && req->change_id != NULL && req->listener != CORBA_OBJECT_NIL);
+
+	g_assert (PAS_BACKEND_GET_CLASS (backend)->get_changes != NULL);
+
+	return (* PAS_BACKEND_GET_CLASS (backend)->get_changes) (backend, book, req);
+}
+
+void
+pas_backend_authenticate_user (PASBackend *backend,
+			       PASBook *book,
+			       PASAuthenticateUserRequest *req)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	g_return_if_fail (PAS_IS_BOOK (book));
+	g_return_if_fail (req != NULL);
+
+	g_assert (PAS_BACKEND_GET_CLASS (backend)->authenticate_user != NULL);
+
+	return (* PAS_BACKEND_GET_CLASS (backend)->authenticate_user) (backend, book, req);
+}
+
+void
+pas_backend_get_supported_fields (PASBackend *backend,
+				  PASBook *book,
+				  PASGetSupportedFieldsRequest *req)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	g_return_if_fail (PAS_IS_BOOK (book));
+	g_return_if_fail (req != NULL);
+
+	g_assert (PAS_BACKEND_GET_CLASS (backend)->get_supported_fields != NULL);
+
+	return (* PAS_BACKEND_GET_CLASS (backend)->get_supported_fields) (backend, book, req);
+}
+
+static void
+process_client_requests (PASBook *book, gpointer user_data)
+{
+	PASBackend *backend;
+	PASRequest *req;
+
+	backend = PAS_BACKEND (user_data);
+
+	req = pas_book_pop_request (book);
+	if (req == NULL)
+		return;
+
+	switch (req->op) {
+	case CreateCard:
+		pas_backend_create_card (backend, book, &req->create);
+		break;
+
+	case RemoveCard:
+		pas_backend_remove_card (backend, book, &req->remove);
+		break;
+
+	case ModifyCard:
+		pas_backend_modify_card (backend, book, &req->modify);
+		break;
+
+	case CheckConnection:
+		pas_backend_check_connection (backend, book, &req->check_connection);
+		break;
+
+	case GetVCard:
+		pas_backend_get_vcard (backend, book, &req->get_vcard);
+		break;
+
+	case GetCursor:
+		pas_backend_get_cursor (backend, book, &req->get_cursor);
+		break;
+
+	case GetBookView:
+		pas_backend_get_book_view (backend, book, &req->get_book_view);
+		break;
+
+	case GetCompletionView:
+		pas_backend_get_completion_view (backend, book, &req->get_completion_view);
+		break;
+
+	case GetChanges:
+		pas_backend_get_changes (backend, book, &req->get_changes);
+		break;
+
+	case AuthenticateUser:
+		pas_backend_authenticate_user (backend, book, &req->auth_user);
+		break;
+
+	case GetSupportedFields:
+		pas_backend_get_supported_fields (backend, book, &req->get_supported_fields);
+		break;
+	}
+
+	pas_book_free_request (req);
+}
+
+static void
+book_destroy_cb (gpointer data, GObject *where_book_was)
+{
+	PASBackend *backend = PAS_BACKEND (data);
+
+	pas_backend_remove_client (backend, (PASBook *)where_book_was);
+}
+
+static void
+last_client_gone (PASBackend *backend)
+{
+	g_signal_emit (backend, pas_backend_signals[LAST_CLIENT_GONE], 0);
+}
+
+static gboolean
+add_client (PASBackend                               *backend,
+	    GNOME_Evolution_Addressbook_BookListener  listener)
+{
+	PASBook *book;
+
+	book = pas_book_new (backend, listener);
+	if (!book) {
+		if (!backend->priv->clients)
+			last_client_gone (backend);
+
+		return FALSE;
+	}
+
+	g_object_weak_ref (G_OBJECT (book), book_destroy_cb, backend);
+
+	g_signal_connect (book, "requests_queued",
+			  G_CALLBACK (process_client_requests), backend);
+
+	backend->priv->clients = g_list_prepend (backend->priv->clients, book);
+
+	if (backend->priv->loaded) {
+		pas_book_respond_open (
+			book, GNOME_Evolution_Addressbook_BookListener_Success);
+	} else {
+		pas_book_respond_open (
+			book, GNOME_Evolution_Addressbook_BookListener_OtherError);
+	}
+
+	pas_book_report_writable (book, backend->priv->writable);
+
+	bonobo_object_unref (BONOBO_OBJECT (book));
+
+	return TRUE;
+}
+
 /**
  * pas_backend_add_client:
  * @backend: An addressbook backend.
@@ -67,10 +341,9 @@ pas_backend_get_uri (PASBackend *backend)
  * Return value: TRUE on success, FALSE on failure to add the client.
  */
 gboolean
-pas_backend_add_client (PASBackend             *backend,
+pas_backend_add_client (PASBackend                               *backend,
 			GNOME_Evolution_Addressbook_BookListener  listener)
 {
-	g_return_val_if_fail (backend != NULL, FALSE);
 	g_return_val_if_fail (PAS_IS_BACKEND (backend), FALSE);
 	g_return_val_if_fail (listener != CORBA_OBJECT_NIL, FALSE);
 
@@ -79,13 +352,25 @@ pas_backend_add_client (PASBackend             *backend,
 	return PAS_BACKEND_GET_CLASS (backend)->add_client (backend, listener);
 }
 
+static void
+remove_client (PASBackend *backend,
+	       PASBook    *book)
+{
+	/* Disconnect */
+	backend->priv->clients = g_list_remove (backend->priv->clients, book);
+
+	/* When all clients go away, notify the parent factory about it so that
+	 * it may decide whether to kill the backend or not.
+	 */
+	if (!backend->priv->clients)
+		last_client_gone (backend);
+}
+
 void
 pas_backend_remove_client (PASBackend *backend,
 			   PASBook    *book)
 {
-	g_return_if_fail (backend != NULL);
 	g_return_if_fail (PAS_IS_BACKEND (backend));
-	g_return_if_fail (book    != NULL);
 	g_return_if_fail (PAS_IS_BOOK (book));
 	
 	g_assert (PAS_BACKEND_GET_CLASS (backend)->remove_client != NULL);
@@ -104,26 +389,64 @@ pas_backend_get_static_capabilities (PASBackend *backend)
 	return PAS_BACKEND_GET_CLASS (backend)->get_static_capabilities (backend);
 }
 
-/**
- * pas_backend_last_client_gone:
- * @backend: An addressbook backend.
- * 
- * Emits the "last_client_gone" signal for the specified backend.  Should
- * only be called from backend implementations if the backend really does
- * not have any more clients.
- **/
+gboolean
+pas_backend_is_loaded (PASBackend *backend)
+{
+	g_return_val_if_fail (PAS_IS_BACKEND (backend), FALSE);
+
+	return backend->priv->loaded;
+}
+
 void
-pas_backend_last_client_gone (PASBackend *backend)
+pas_backend_set_is_loaded (PASBackend *backend, gboolean is_loaded)
 {
-	g_return_if_fail (backend != NULL);
 	g_return_if_fail (PAS_IS_BACKEND (backend));
 
-	g_signal_emit (backend, pas_backend_signals[LAST_CLIENT_GONE], 0);	
+	backend->priv->loaded = is_loaded;
+}
+
+gboolean
+pas_backend_is_writable (PASBackend *backend)
+{
+	g_return_val_if_fail (PAS_IS_BACKEND (backend), FALSE);
+	
+	return backend->priv->writable;
+}
+
+void
+pas_backend_set_is_writable (PASBackend *backend, gboolean is_writable)
+{
+	g_return_if_fail (PAS_IS_BACKEND (backend));
+	
+	backend->priv->writable = is_writable;
 }
 
 static void
 pas_backend_init (PASBackend *backend)
 {
+	PASBackendPrivate *priv;
+
+	priv          = g_new0 (PASBackendPrivate, 1);
+	priv->clients = NULL;
+
+	backend->priv = priv;
+}
+
+static void
+pas_backend_dispose (GObject *object)
+{
+	PASBackend *backend;
+
+	backend = PAS_BACKEND (object);
+
+	if (backend->priv) {
+		g_list_free (backend->priv->clients);
+		g_free (backend->priv);
+
+		backend->priv = NULL;
+	}
+
+	G_OBJECT_CLASS (parent_class)->dispose (object);
 }
 
 static void
@@ -131,11 +454,14 @@ pas_backend_class_init (PASBackendClass *klass)
 {
 	GObjectClass *object_class;
 
+	parent_class = g_type_class_peek_parent (klass);
+
 	object_class = (GObjectClass *) klass;
 
-	klass->add_client = NULL;
-	klass->remove_client = NULL;
-	klass->get_static_capabilities = NULL;
+	klass->add_client = add_client;
+	klass->remove_client = remove_client;
+
+	object_class->dispose = pas_backend_dispose;
 
 	pas_backend_signals[LAST_CLIENT_GONE] =
 		g_signal_new ("last_client_gone",
diff --git a/addressbook/backend/pas/pas-backend.h b/addressbook/backend/pas/pas-backend.h
index d1d5705b0f..8c3cab2c60 100644
--- a/addressbook/backend/pas/pas-backend.h
+++ b/addressbook/backend/pas/pas-backend.h
@@ -53,6 +53,18 @@ typedef struct {
 	void (*remove_client) (PASBackend *backend, PASBook *book);
         char *(*get_static_capabilities) (PASBackend *backend);
 
+	void (*create_card) (PASBackend *backend, PASBook *book, PASCreateCardRequest *req);
+	void (*remove_card) (PASBackend *backend, PASBook *book, PASRemoveCardRequest *req);
+	void (*modify_card) (PASBackend *backend, PASBook *book, PASModifyCardRequest *req);
+	void (*check_connection) (PASBackend *backend, PASBook *book, PASCheckConnectionRequest *req);
+	void (*get_vcard) (PASBackend *backend, PASBook *book, PASGetVCardRequest *req);
+	void (*get_cursor) (PASBackend *backend, PASBook *book, PASGetCursorRequest *req);
+	void (*get_book_view) (PASBackend *backend, PASBook *book, PASGetBookViewRequest *req);
+	void (*get_completion_view) (PASBackend *backend, PASBook *book, PASGetCompletionViewRequest *req);
+	void (*get_changes) (PASBackend *backend, PASBook *book, PASGetChangesRequest *req);
+	void (*authenticate_user) (PASBackend *backend, PASBook *book, PASAuthenticateUserRequest *req);
+	void (*get_supported_fields) (PASBackend *backend, PASBook *book, PASGetSupportedFieldsRequest *req);
+
 	/* Notification signals */
 	void (* last_client_gone) (PASBackend *backend);
 } PASBackendClass;
@@ -72,9 +84,53 @@ void        pas_backend_remove_client            (PASBackend             *backen
 						  PASBook                *book);
 char       *pas_backend_get_static_capabilities  (PASBackend             *backend);
 
-void        pas_backend_last_client_gone         (PASBackend             *backend);
-
-GType     pas_backend_get_type                 (void);
+gboolean    pas_backend_is_loaded                (PASBackend             *backend);
+
+gboolean    pas_backend_is_writable              (PASBackend             *backend);
+
+void        pas_backend_create_card              (PASBackend             *backend,
+						  PASBook                *book,
+						  PASCreateCardRequest   *req);
+void        pas_backend_remove_card              (PASBackend             *backend,
+						  PASBook                *book,
+						  PASRemoveCardRequest   *req);
+void        pas_backend_modify_card              (PASBackend             *backend,
+						  PASBook                *book,
+						  PASModifyCardRequest   *req);
+void        pas_backend_check_connection         (PASBackend             *backend,
+						  PASBook                *book,
+						  PASCheckConnectionRequest *req);
+void        pas_backend_get_vcard                (PASBackend             *backend,
+						  PASBook                *book,
+						  PASGetVCardRequest     *req);
+void        pas_backend_get_cursor               (PASBackend             *backend,
+						  PASBook                *book,
+						  PASGetCursorRequest    *req);
+void        pas_backend_get_book_view            (PASBackend             *backend,
+						  PASBook                *book,
+						  PASGetBookViewRequest  *req);
+void        pas_backend_get_completion_view      (PASBackend             *backend,
+						  PASBook                *book,
+						  PASGetCompletionViewRequest *req);
+void        pas_backend_get_changes              (PASBackend             *backend,
+						  PASBook                *book,
+						  PASGetChangesRequest   *req);
+void        pas_backend_authenticate_user        (PASBackend             *backend,
+						  PASBook                *book,
+						  PASAuthenticateUserRequest *req);
+void        pas_backend_get_supported_fields     (PASBackend             *backend,
+						  PASBook                *book,
+						  PASGetSupportedFieldsRequest *req);
+
+
+GType       pas_backend_get_type                 (void);
+
+
+/* protected functions for subclasses */
+void        pas_backend_set_is_loaded            (PASBackend             *backend,
+						  gboolean                is_loaded);
+void        pas_backend_set_is_writable          (PASBackend             *backend,
+						  gboolean                is_writable);
 
 #endif /* ! __PAS_BACKEND_H__ */