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/*
* Copyright (C) 2011 Sansar Choinyambuu
* HSR Hochschule fuer Technik Rapperswil
*
* 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 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*/
#include "pts_database.h"
#include <debug.h>
#include <crypto/hashers/hasher.h>
typedef struct private_pts_database_t private_pts_database_t;
/**
* Private data of a pts_database_t object.
*
*/
struct private_pts_database_t {
/**
* Public pts_database_t interface.
*/
pts_database_t public;
/**
* database instance
*/
database_t *db;
};
METHOD(pts_database_t, create_file_enumerator, enumerator_t*,
private_pts_database_t *this, char *product)
{
enumerator_t *e;
/* look for all entries belonging to a product in the files table */
e = this->db->query(this->db,
"SELECT f.id, f.type, f.path FROM files AS f "
"JOIN product_file AS pf ON f.id = pf.file "
"JOIN products AS p ON p.id = pf.product "
"WHERE p.name = ?",
DB_TEXT, product, DB_INT, DB_INT, DB_TEXT);
return e;
}
METHOD(pts_database_t, create_meas_enumerator, enumerator_t*,
private_pts_database_t *this, char *product, int id, pts_meas_algorithms_t algorithm)
{
enumerator_t *e;
int algo = 0;
switch(algorithm)
{
case PTS_MEAS_ALGO_SHA1:
algo = 32768;
break;
case PTS_MEAS_ALGO_SHA256:
algo = 16384;
break;
case PTS_MEAS_ALGO_SHA384:
algo = 8192;
break;
}
/* look for all entries belonging to a product and file in file_hashes table */
e = this->db->query(this->db,
"SELECT fh.hash FROM file_hashes AS fh "
"JOIN files AS f ON fh.file = f.id "
"JOIN products AS p ON fh.product = p.id "
"WHERE p.name = ? AND f.id = ? AND fh.algo = ?",
DB_TEXT, product, DB_INT, id, DB_INT, algo, DB_BLOB);
return e;
}
METHOD(pts_database_t, destroy, void,
private_pts_database_t *this)
{
this->db->destroy(this->db);
free(this);
}
/**
* See header
*/
pts_database_t *pts_database_create(char *uri)
{
private_pts_database_t *this;
INIT(this,
.public = {
.create_file_enumerator = _create_file_enumerator,
.create_meas_enumerator = _create_meas_enumerator,
.destroy = _destroy,
},
.db = lib->db->create(lib->db, uri),
);
if (!this->db)
{
DBG1(DBG_TNC, "failed to connect to PTS file measurement database '%s'",
uri);
free(this);
return NULL;
}
return &this->public;
}
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