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/*
* Copyright (c) 2014 Balabit
* Copyright (c) 2014 Viktor Juhász <viktor.juhasz@balabit.com>
* Copyright (c) 2014 Viktor Tusa <viktor.tusa@balabit.com>
*
* 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 "config_parse_lib.h"
#include "cfg.h"
#include "cfg-parser.h"
#include "plugin.h"
static gchar **
split_plugin_name_and_config(const gchar *config_to_parse)
{
gchar **delimited = NULL;
if (!config_to_parse || strlen(config_to_parse) == 0)
return NULL;
delimited = g_strsplit(config_to_parse, "(", 2);
if (!delimited)
return NULL;
if (g_strv_length(delimited) == 2)
{
gchar *tmp = delimited[1];
delimited[1] = g_strdup_printf("(%s", tmp);
g_free(tmp);
return delimited;
}
g_strfreev(delimited);
return NULL;
}
static gpointer
parse_plugin_config(const gchar *config_to_parse, gint context, gpointer arg)
{
gpointer result = NULL;
CfgLexer *old_lexer = configuration->lexer;
CfgLexer *lexer = NULL;
CFG_LTYPE *yylloc = NULL;
Plugin *plugin = NULL;
gchar **delimited;
delimited = split_plugin_name_and_config(config_to_parse);
if (!delimited)
{
fprintf(stderr, "Error parsing expression\n");
return NULL;
}
lexer = cfg_lexer_new_buffer(configuration, delimited[1], strlen(delimited[1]));
if (!lexer)
{
fprintf(stderr, "Error parsing expression\n");
goto finish;
}
yylloc = g_new0(CFG_LTYPE, 1);
yylloc->first_column = 1;
yylloc->first_line = 1;
yylloc->last_column = 1;
yylloc->last_line = 1;
plugin = cfg_find_plugin(configuration, context, delimited[0]);
if (!plugin)
{
fprintf(stderr, "Error parsing expression\n");
goto finish;
}
configuration->lexer = lexer;
cfg_set_global_paths(configuration);
cfg_lexer_push_context(lexer, main_parser.context, main_parser.keywords, main_parser.name);
result = cfg_parse_plugin(configuration, plugin, yylloc, arg);
cfg_lexer_pop_context(lexer);
if (!result)
{
fprintf(stderr, "Error parsing expression\n");
goto finish;
}
finish:
configuration->lexer = old_lexer;
if (lexer)
cfg_lexer_free(lexer);
g_free(yylloc);
g_strfreev(delimited);
return result;
}
static gboolean
parse_general_config(const gchar *config_to_parse, gint context, gpointer arg)
{
gpointer result = NULL;
CfgLexer *lexer = cfg_lexer_new_buffer(configuration, config_to_parse, strlen(config_to_parse));
if (!cfg_run_parser(configuration, lexer, &main_parser, &result, arg))
{
fprintf(stderr, "Error parsing expression\n");
return FALSE;
}
return TRUE;
}
gboolean
parse_config(const gchar *config_to_parse, gint context, gpointer arg, gpointer *result)
{
if (!config_to_parse || strlen(config_to_parse) == 0)
return FALSE;
if (result)
{
*result = parse_plugin_config(config_to_parse, context, arg);
if (*result)
return TRUE;
}
if (main_parser.context != context)
return FALSE;
return parse_general_config(config_to_parse, context, arg);
}
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