// this is a simple test to check the implementation, not the algorithm
void t01_test_random(){
INIT_LOCAL();
onion_random_init();
unsigned char rand_generated[256];
onion_random_generate(rand_generated,256);
//set of which numbers were generated
char char_set[256];
memset(char_set,0,256);
unsigned unique_numbers_generated=0;
unsigned i;
for( i=0; i<256; ++i ) {
if( char_set[ rand_generated[i] ] == 0) {
char_set[ rand_generated[i] ] = 1;
unique_numbers_generated++;
}
}
FAIL_IF_NOT( unique_numbers_generated > 256/2 );
onion_random_free();
END_LOCAL();
}
/**
* @short Creates a redis backend for sessions
* @ingroup sessions
*/
onion_sessions* onion_sessions_redis_new(const char* server_ip, int port)
{
onion_random_init();
onion_sessions *ret = onion_low_malloc(sizeof(onion_sessions));
ret->data = onion_low_malloc(sizeof(onion_session_redis));
ret->free=onion_sessions_redis_free;
ret->get=onion_sessions_redis_get;
ret->save=onion_sessions_redis_save;
onion_session_redis *p = ret->data;
p->context = redisConnect(server_ip, port);
if(p->context != NULL && p->context->err)
{
ONION_ERROR("Can't connect to redis. Error (%s)", p->context->errstr);
redisFree(p->context);
return NULL;
}
#ifdef HAVE_PTHREADS
pthread_mutex_init(&p->mutex, NULL);
#endif
return ret;
}
onion_sessions *onion_sessions_mem_new(){
onion_random_init();
onion_sessions *ret=onion_low_malloc(sizeof(onion_sessions));
ret->data=onion_dict_new();
ret->get=onion_sessions_mem_get;
ret->save=onion_sessions_mem_save;
ret->free=onion_sessions_mem_free;
return ret;
}
/**
* @short Creates a sqlite backend for sessions
* @ingroup sessions
*
* @see onion_set_session_backend
*/
onion_sessions* onion_sessions_sqlite3_new(const char *database_filename)
{
onion_random_init();
int rc;
sqlite3 *db;
sqlite3_stmt *save;
sqlite3_stmt *get;
rc = sqlite3_open(database_filename, &db);
if( rc ){
ONION_ERROR("Can't open database: %s", sqlite3_errmsg(db));
sqlite3_close(db);
return NULL;
}
// I blindly try to create tables. If they exist, error, if not, create
sqlite3_exec(db, "CREATE TABLE sessions (id TEXT PRIMARY KEY, data TEXT)", 0,0,0);
const char *GET_SQL="SELECT data FROM sessions WHERE id=?";
rc=sqlite3_prepare_v2(db, GET_SQL, strlen(GET_SQL), &get, NULL);
if( rc != SQLITE_OK ){
ONION_ERROR("Cant prepare statement to get (%d)", rc);
sqlite3_close(db);
return NULL;
}
const char *SAVE_SQL="INSERT OR REPLACE INTO sessions (id, data) VALUES (?, ?);";
rc=sqlite3_prepare_v2(db, SAVE_SQL, strlen(SAVE_SQL), &save, NULL);
if( rc != SQLITE_OK ){
ONION_ERROR("Cant prepare statement to save (%d)", rc);
sqlite3_close(db);
return NULL;
}
onion_sessions *ret=onion_low_malloc(sizeof(onion_sessions));
ret->data=onion_low_malloc(sizeof(onion_session_sqlite3));
ret->free=onion_sessions_sqlite3_free;
ret->get=onion_sessions_sqlite3_get;
ret->save=onion_sessions_sqlite3_save;
onion_session_sqlite3 *p=ret->data;
p->db=db;
p->save=save;
p->get=get;
#ifdef HAVE_PTHREADS
pthread_mutex_init(&p->mutex, NULL);
#endif
return ret;
}