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permissions: simplify API a little

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Avoid passing GstStructure in the add_role method, use varargs instead
to construct the structure behind the scenes. We can then also use the
structure name as the role and simplify some more logic.
This commit is contained in:
Wim Taymans 2013-07-12 16:03:07 +02:00
parent a6a8293595
commit facc91a942
4 changed files with 77 additions and 59 deletions
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20
examples/test-auth.c
View file

@ -95,19 +95,16 @@ main (int argc, char *argv[])
/* allow user and admin to access this resource */
permissions = gst_rtsp_permissions_new ();
gst_rtsp_permissions_add_role (permissions, "user",
gst_structure_new ("user",
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL));
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL);
gst_rtsp_permissions_add_role (permissions, "admin",
gst_structure_new ("admin",
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL));
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL);
/* admin2 can look at the media but not construct so he gets a
* 401 Unauthorized */
gst_rtsp_permissions_add_role (permissions, "admin2",
gst_structure_new ("admin2",
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, FALSE, NULL));
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, FALSE, NULL);
gst_rtsp_media_factory_set_permissions (factory, permissions);
gst_rtsp_permissions_unref (permissions);
@ -124,9 +121,8 @@ main (int argc, char *argv[])
/* user and admin have no permissions so they can't even see the
* media and get a 404 Not Found */
gst_rtsp_permissions_add_role (permissions, "admin2",
gst_structure_new ("admin2",
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL));
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL);
gst_rtsp_media_factory_set_permissions (factory, permissions);
gst_rtsp_permissions_unref (permissions);

10
examples/test-cgroups.c
View file

@ -194,13 +194,11 @@ main (int argc, char *argv[])
/* allow user and admin to access this resource */
permissions = gst_rtsp_permissions_new ();
gst_rtsp_permissions_add_role (permissions, "user",
gst_structure_new ("user",
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL));
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL);
gst_rtsp_permissions_add_role (permissions, "admin",
gst_structure_new ("admin",
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL));
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL);
gst_rtsp_media_factory_set_permissions (factory, permissions);
gst_rtsp_permissions_unref (permissions);

85
gst/rtsp-server/rtsp-permissions.c
View file

@ -33,22 +33,15 @@ typedef struct _GstRTSPPermissionsImpl
{
GstRTSPPermissions permissions;
/* Roles, array of RoleEntry */
GArray *roles;
/* Roles, array of GstStructure */
GPtrArray *roles;
} GstRTSPPermissionsImpl;
typedef struct
{
gchar *role;
GstStructure *structure;
} RoleEntry;
static void
clear_role_entry (RoleEntry * role)
free_structure (GstStructure * structure)
{
g_free (role->role);
gst_structure_set_parent_refcount (role->structure, NULL);
gst_structure_free (role->structure);
gst_structure_set_parent_refcount (structure, NULL);
gst_structure_free (structure);
}
//GST_DEBUG_CATEGORY_STATIC (rtsp_permissions_debug);
@ -64,7 +57,7 @@ _gst_rtsp_permissions_free (GstRTSPPermissions * permissions)
{
GstRTSPPermissionsImpl *impl = (GstRTSPPermissionsImpl *) permissions;
g_array_free (impl->roles, TRUE);
g_ptr_array_free (impl->roles, TRUE);
g_slice_free1 (sizeof (GstRTSPPermissionsImpl), permissions);
}
@ -90,9 +83,8 @@ gst_rtsp_permissions_init (GstRTSPPermissionsImpl * permissions,
(GstMiniObjectCopyFunction) _gst_rtsp_permissions_copy, NULL,
(GstMiniObjectFreeFunction) _gst_rtsp_permissions_free);
permissions->roles = g_array_new (FALSE, TRUE, sizeof (RoleEntry));
g_array_set_clear_func (permissions->roles,
(GDestroyNotify) clear_role_entry);
permissions->roles =
g_ptr_array_new_with_free_func ((GDestroyNotify) free_structure);
}
/**
@ -119,43 +111,68 @@ gst_rtsp_permissions_new (void)
* gst_rtsp_permissions_add_role:
* @permissions: a #GstRTSPPermissions
* @role: a role
* @structure: the permissions structure
* @fielname: the first field name
* @...: additional arguments
*
* Add the configuration in @structure to @permissions for @role.
* Add a new @role to @permissions with the given variables. The fields
* are the same layout as gst_structure_new().
*/
void
gst_rtsp_permissions_add_role (GstRTSPPermissions * permissions,
const gchar * role, GstStructure * structure)
const gchar * role, const gchar * fieldname, ...)
{
va_list var_args;
va_start (var_args, fieldname);
gst_rtsp_permissions_add_role_valist (permissions, role, fieldname, var_args);
va_end (var_args);
}
/**
* gst_rtsp_permissions_add_role_valist:
* @permissions: a #GstRTSPPermissions
* @role: a role
* @fielname: the first field name
* @var_args: additional fields to add
*
* Add a new @role to @permissions with the given variables. Structure fields
* are set according to the varargs in a manner similar to gst_structure_new().
*/
void
gst_rtsp_permissions_add_role_valist (GstRTSPPermissions * permissions,
const gchar * role, const gchar * fieldname, va_list var_args)
{
GstRTSPPermissionsImpl *impl = (GstRTSPPermissionsImpl *) permissions;
GstStructure *structure;
gint i, len;
RoleEntry item;
gboolean found;
g_return_if_fail (GST_IS_RTSP_PERMISSIONS (permissions));
g_return_if_fail (gst_mini_object_is_writable (&permissions->mini_object));
g_return_if_fail (role != NULL);
g_return_if_fail (fieldname != NULL);
structure = gst_structure_new_valist (role, fieldname, var_args);
g_return_if_fail (structure != NULL);
len = impl->roles->len;
found = FALSE;
for (i = 0; i < len; i++) {
RoleEntry *entry = &g_array_index (impl->roles, RoleEntry, i);
GstStructure *entry = g_ptr_array_index (impl->roles, i);
if (g_str_equal (entry->role, role)) {
gst_structure_free (entry->structure);
entry->structure = structure;
if (gst_structure_has_name (entry, role)) {
gst_structure_free (entry);
found = TRUE;
break;
}
}
if (!found) {
item.role = g_strdup (role);
item.structure = structure;
gst_structure_set_parent_refcount (structure,
&impl->permissions.mini_object.refcount);
g_array_append_val (impl->roles, item);
}
gst_structure_set_parent_refcount (structure,
&impl->permissions.mini_object.refcount);
if (!found)
g_ptr_array_add (impl->roles, structure);
else
g_ptr_array_index (impl->roles, i) = structure;
}
/**
@ -195,10 +212,10 @@ gst_rtsp_permissions_get_role (GstRTSPPermissions * permissions,
len = impl->roles->len;
for (i = 0; i < len; i++) {
RoleEntry *entry = &g_array_index (impl->roles, RoleEntry, i);
GstStructure *entry = g_ptr_array_index (impl->roles, i);
if (g_str_equal (entry->role, role))
return entry->structure;
if (gst_structure_has_name (entry, role))
return entry;
}
return NULL;
}

21
gst/rtsp-server/rtsp-permissions.h
View file

@ -79,15 +79,22 @@ gst_rtsp_permissions_unref (GstRTSPPermissions * permissions)
}
GstRTSPPermissions * gst_rtsp_permissions_new (void);
GstRTSPPermissions * gst_rtsp_permissions_new (void);
void gst_rtsp_permissions_add_role (GstRTSPPermissions *permissions, const gchar *role,
GstStructure *structure);
void gst_rtsp_permissions_remove_role (GstRTSPPermissions *permissions, const gchar *role);
const GstStructure * gst_rtsp_permissions_get_role (GstRTSPPermissions *permissions, const gchar *role);
void gst_rtsp_permissions_add_role (GstRTSPPermissions *permissions,
const gchar *role,
const gchar *field_name, ...);
void gst_rtsp_permissions_add_role_valist (GstRTSPPermissions *permissions,
const gchar *role,
const gchar *field_name,
va_list var_args);
void gst_rtsp_permissions_remove_role (GstRTSPPermissions *permissions,
const gchar *role);
const GstStructure * gst_rtsp_permissions_get_role (GstRTSPPermissions *permissions,
const gchar *role);
gboolean gst_rtsp_permissions_is_allowed (GstRTSPPermissions *permissions,
const gchar *role, const gchar *permission);
gboolean gst_rtsp_permissions_is_allowed (GstRTSPPermissions *permissions,
const gchar *role, const gchar *permission);
G_END_DECLS