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/* blacklist.c -- Functions for processing openvpn_blacklist records
*
* GPLv2 only - Copyright (C) 2008, 2009
* David Sommerseth <dazo@users.sourceforge.net>
*
* 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; version 2
* of the License.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include <string.h>
#include <unistd.h>
#include <assert.h>
#include <libxml/tree.h>
#ifndef DRIVERAPIVERSION
# define DRIVERAPIVERSION 2
#endif
#include <sqlite3.h>
#include <eurephia_nullsafe.h>
#include <eurephia_context.h>
#include <eurephia_log.h>
#include <eurephia_xml.h>
#include <eurephia_values.h>
#include <eurephiadb_session_struct.h>
#include <eurephiadb_mapping.h>
#include <passwd.h>
#ifndef DRIVER_MODE
#define DRIVER_MODE
#endif
#include "../sqlite.h"
xmlDoc *blacklist_list(eurephiaCTX *ctx, eDBfieldMap *fmap) {
dbresult *res = NULL;
xmlDoc *doc = NULL;
xmlNode *root_n = NULL, *uname_n = NULL, *cert_n = NULL, *remip_n = NULL;
int i = 0;
// Query the database for registered attempts
res = sqlite_query_mapped(ctx, SQL_SELECT,
"SELECT username, digest, remoteip,"
" registered, last_accessed, blid"
" FROM openvpn_blacklist",
NULL, fmap, "blid");
if( res == NULL ) {
eurephia_log(ctx, LOG_ERROR, 0, "Error querying the blacklist register");
return NULL;
}
eurephiaXML_CreateDoc(ctx, 1, "blacklist", &doc, &root_n);
xmlNewProp(root_n, (xmlChar *) "mode", (xmlChar *) "list");
for( i = 0; i < sqlite_get_numtuples(res); i++ ) {
xmlNode *blist_n = NULL;
if( sqlite_get_value(res, i, 0) != NULL ) { // Username
if( uname_n == NULL ) {
uname_n = xmlNewChild(root_n, NULL, (xmlChar *) "username", NULL);
assert( uname_n != NULL );
}
blist_n = xmlNewChild(uname_n, NULL, (xmlChar *) "blacklisted", NULL);
sqlite_xml_value(blist_n, XML_NODE, "username", res, i, 0);
} else if( sqlite_get_value(res, i, 1) != NULL ) { // Digest
if( cert_n == NULL ) {
cert_n = xmlNewChild(root_n, NULL, (xmlChar *) "certificate", NULL);
assert( cert_n != NULL );
}
blist_n = xmlNewChild(cert_n, NULL, (xmlChar *) "blacklisted", NULL);
sqlite_xml_value(blist_n, XML_NODE, "certificate", res, i, 1);
} else if( sqlite_get_value(res, i, 2) != NULL ) { // IP address
if( remip_n == NULL ) {
remip_n = xmlNewChild(root_n, NULL, (xmlChar *) "ipaddress", NULL);
assert( remip_n != NULL );
}
blist_n = xmlNewChild(remip_n, NULL, (xmlChar *) "blacklisted", NULL);
sqlite_xml_value(blist_n, XML_NODE, "ipaddress", res, i, 2);
} else {
continue;
}
sqlite_xml_value(blist_n, XML_ATTR, "blid", res, i, 5);
sqlite_xml_value(blist_n, XML_NODE, "registered", res, i, 3);
sqlite_xml_value(blist_n, XML_NODE, "last_accessed", res, i, 4);
}
sqlite_free_results(res);
return doc;
}
xmlDoc *blacklist_add(eurephiaCTX *ctx, eDBfieldMap *fmap) {
dbresult *res = NULL;
xmlDoc *ret = NULL;
int fields = 0;
fields = eDBmappingFieldsPresent(fmap);
if( (fields != FIELD_UNAME) && (fields != FIELD_CERTDIGEST) && (fields != FIELD_REMOTEIP) ) {
return eurephiaXML_ResultMsg(ctx, exmlERROR,
"Missing username, IP address or certificate digest, "
"or multiple of these fields were given.");
}
res = sqlite_query_mapped(ctx, SQL_INSERT, "INSERT INTO openvpn_blacklist", fmap, NULL, NULL);
if( res == NULL ) {
eurephia_log(ctx, LOG_FATAL, 0, "Could not blacklist the requested data");
ret = eurephiaXML_ResultMsg(ctx, exmlERROR, "Blacklisting failed");
} else {
ret = eurephiaXML_ResultMsg(ctx, exmlRESULT, "Record registered in the blacklist");
sqlite_free_results(res);
}
return ret;
}
xmlDoc *blacklist_delete(eurephiaCTX *ctx, eDBfieldMap *fmap) {
dbresult *res = NULL;
xmlDoc *ret = NULL;
int fields;
fields = eDBmappingFieldsPresent(fmap);
if( (fields & (FIELD_UNAME | FIELD_CERTDIGEST | FIELD_REMOTEIP | FIELD_RECID)) == 0 ) {
return eurephiaXML_ResultMsg(ctx, exmlERROR,
"Missing username, IP address, certificate digest or blacklist ID");
}
res = sqlite_query_mapped(ctx, SQL_DELETE, "DELETE FROM openvpn_blacklist", NULL, fmap, NULL);
if( res == NULL ) {
eurephia_log(ctx, LOG_FATAL, 0, "Could not remove blacklisting");
ret = eurephiaXML_ResultMsg(ctx, exmlERROR, "Failed to remove the blacklisting");
} else {
ret = eurephiaXML_ResultMsg(ctx, exmlRESULT, "Blacklisting removed");
sqlite_free_results(res);
}
return ret;
}
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