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/*
* Copyright (c) 2014 Balabit
* Copyright (c) 2014 Balázs Scheidler
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include "template/function.h"
#include "plugin.h"
typedef struct _UserTemplateFunction
{
LogTemplateFunction super;
gchar *name;
LogTemplate *template;
} UserTemplateFunction;
static gboolean
user_template_function_prepare(LogTemplateFunction *s, gpointer state, LogTemplate *parent, gint argc, gchar *argv[],
GError **error)
{
UserTemplateFunction *self = (UserTemplateFunction *) s;
g_return_val_if_fail(error == NULL || (*error) == NULL, FALSE);
if (argc != 1)
{
g_set_error(error, LOG_TEMPLATE_ERROR, LOG_TEMPLATE_ERROR_COMPILE,
"User defined template function $(%s) cannot have arguments", self->name);
return FALSE;
}
return TRUE;
}
static void
user_template_function_call(LogTemplateFunction *s, gpointer state, const LogTemplateInvokeArgs *args, GString *result,
LogMessageValueType *type)
{
UserTemplateFunction *self = (UserTemplateFunction *) s;
log_template_append_format_value_and_type_with_context(self->template, args->messages, args->num_messages,
args->options, result, type);
}
static void
user_template_function_free(LogTemplateFunction *s)
{
UserTemplateFunction *self = (UserTemplateFunction *) s;
g_free(self->name);
log_template_unref(self->template);
g_free(self);
}
LogTemplateFunction *
user_template_function_new(const gchar *name, LogTemplate *template)
{
UserTemplateFunction *self;
self = g_new0(UserTemplateFunction, 1);
self->super.size_of_state = 0;
self->super.prepare = user_template_function_prepare;
self->super.call = user_template_function_call;
self->super.free_fn = user_template_function_free;
self->template = log_template_ref(template);
self->name = g_strdup(name);
return &self->super;
}
typedef struct _UserTemplateFunctionPlugin
{
Plugin super;
LogTemplate *template;
} UserTemplateFunctionPlugin;
static gpointer
user_template_function_construct(Plugin *s)
{
UserTemplateFunctionPlugin *self = (UserTemplateFunctionPlugin *) s;
return user_template_function_new(self->super.name, self->template);
}
static void
user_template_function_plugin_free(Plugin *s)
{
UserTemplateFunctionPlugin *plugin = (UserTemplateFunctionPlugin *) s;
g_free((gchar *) plugin->super.name);
log_template_unref(plugin->template);
g_free(s);
}
void
user_template_function_register(GlobalConfig *cfg, const gchar *name, LogTemplate *template)
{
UserTemplateFunctionPlugin *plugin;
plugin = g_new0(UserTemplateFunctionPlugin, 1);
plugin->super.type = LL_CONTEXT_TEMPLATE_FUNC;
plugin->super.name = g_strdup(name);
plugin->super.parser = NULL;
plugin->super.construct = user_template_function_construct;
plugin->super.free_fn = user_template_function_plugin_free;
plugin->template = log_template_ref(template);
plugin_register(&cfg->plugin_context, &plugin->super, 1);
}
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