// generate new sid for redis session
func (rp *RedisProvider) SessionRegenerate(oldsid, sid string) (session.Store, error) {
oldsid = "ci_session:" + oldsid
sid = "ci_session:" + sid
c := rp.poollist.Get()
defer c.Close()
if existed, _ := redis.Int(c.Do("EXISTS", oldsid)); existed == 0 {
// oldsid doesn't exists, set the new sid directly
// ignore error here, since if it return error
// the existed value will be 0
c.Do("SET", sid, "", "EX", rp.maxlifetime)
} else {
c.Do("RENAME", oldsid, sid)
c.Do("EXPIRE", sid, rp.maxlifetime)
}
kvs, err := redis.String(c.Do("GET", sid))
var kv map[interface{}]interface{}
if len(kvs) == 0 {
kv = make(map[interface{}]interface{})
} else {
kv, err = encoding.DecodePhp([]byte(kvs))
if err != nil {
return nil, err
}
}
rs := &RedisSessionStore{p: rp.poollist, sid: sid, values: kv, maxlifetime: rp.maxlifetime}
return rs, nil
}
// read redis session by sid
func (rp *RedisProvider) SessionRead(sid string) (session.Store, error) {
sid = "ci_session:" + sid
c := rp.poollist.Get()
defer c.Close()
kvs, err := redis.String(c.Do("GET", sid))
var kv map[interface{}]interface{}
if len(kvs) == 0 {
kv = make(map[interface{}]interface{})
} else {
kv, err = encoding.DecodePhp([]byte(kvs))
if err != nil {
return nil, err
}
}
rs := &RedisSessionStore{p: rp.poollist, sid: sid, values: kv, maxlifetime: rp.maxlifetime}
return rs, nil
}