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XMPP daemon written in C, using GLib
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wxmppd/src/configfiles.c

167 lines
3.9 KiB

/* wXMPPd - (Trying to be) full featured XMPP daemon
* Copyright (C) 2011 Gergely Polonkai
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <glib.h>
#include <libxml/parser.h>
#include <libxml/xpath.h>
#include "configfiles.h"
#include "modules.h"
int
wxmppd_processConfigfile(const char *file, int startup, wxmppd_config_t **config)
{
xmlDocPtr doc;
xmlXPathContextPtr xpathCtx;
xmlXPathObjectPtr xpathObject;
int i;
if (config)
{
*config = g_new0(wxmppd_config_t, 1);
}
if ((doc = xmlParseFile(file)) == NULL)
{
printf("Config file error!\n");
return WXMPPD_CONFIG_BADFILE;
}
xpathCtx = xmlXPathNewContext(doc);
if ((xpathObject = xmlXPathEvalExpression("/wxmppd/modules/load", xpathCtx)) == NULL)
{
printf("Config file error during xpath!\n");
xmlXPathFreeContext(xpathCtx);
return WXMPPD_CONFIG_BADFILE;
}
if (xpathObject->nodesetval)
{
for (i = 0; i < xpathObject->nodesetval->nodeNr; i++)
{
xmlNodePtr textNode;
if (xmlChildElementCount(xpathObject->nodesetval->nodeTab[i]) > 0)
{
printf("Config file error! modules/load elements cannot have children!\n");
xmlXPathFreeContext(xpathCtx);
xmlXPathFreeObject(xpathObject);
return WXMPPD_CONFIG_BADFILE;
}
if (config)
{
(*config)->modules_to_load = g_slist_append((*config)->modules_to_load, g_strdup(xpathObject->nodesetval->nodeTab[i]->children->content));
}
}
}
xmlXPathFreeObject(xpathObject);
if ((xpathObject = xmlXPathEvalExpression("/wxmppd/modules/module-dir", xpathCtx)) == NULL)
{
printf("Config file error during xpath!\n");
xmlXPathFreeContext(xpathCtx);
return WXMPPD_CONFIG_BADFILE;
}
if (xpathObject->nodesetval)
{
if (xpathObject->nodesetval->nodeNr > 1)
{
printf("Config file cannot contain more than one module-dir definition!\n");
xmlXPathFreeObject(xpathObject);
xmlXPathFreeContext(xpathCtx);
return WXMPPD_CONFIG_BADFILE;
}
else if (xpathObject->nodesetval->nodeNr == 1)
{
if (xmlChildElementCount(xpathObject->nodesetval->nodeTab[0]) > 0)
{
printf("Config file error! modules/load elements cannot have children!\n");
xmlXPathFreeContext(xpathCtx);
xmlXPathFreeObject(xpathObject);
return WXMPPD_CONFIG_BADFILE;
}
if (config)
{
(*config)->modules_dir = g_strdup(xpathObject->nodesetval->nodeTab[0]->children->content);
}
}
}
xmlXPathFreeContext(xpathCtx);
return WXMPPD_CONFIG_SUCCESS;
}
wxmppd_config_t *
wxmppd_copyConfig(wxmppd_config_t *src)
{
wxmppd_config_t *temp;
temp = g_new0(wxmppd_config_t, 1);
if (src->modules_dir != NULL)
{
temp->modules_dir = g_strdup(src->modules_dir);
}
if (src->modules_to_load)
{
guint i;
temp->modules_to_load = NULL;
for (i = 0; i < g_slist_length(src->modules_to_load); i++)
{
temp->modules_to_load = g_slist_append(temp->modules_to_load, g_strdup(g_slist_nth(src->modules_to_load, i)->data));
}
}
return temp;
}
static void
free_slist_data_cb(gpointer data, gpointer user_data)
{
g_free(data);
}
void
wxmppd_freeConfig(wxmppd_config_t **config)
{
if (*config)
{
if ((*config)->modules_dir)
{
g_free((*config)->modules_dir);
}
if ((*config)->modules_to_load)
{
g_slist_foreach((*config)->modules_to_load, free_slist_data_cb, NULL);
g_slist_free((*config)->modules_to_load);
}
g_free(*config);
}
*config = NULL;
}