// generate new sid for redis session
func (rp *RedisProvider) SessionRegenerate(oldsid, sid string) (session.SessionStore, error) {
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 = session.DecodeGob([]byte(kvs))
if err != nil {
return nil, err
}
}
rs := &RedisSessionStore{p: rp.poollist, sid: sid, values: kv, maxlifetime: rp.maxlifetime}
return rs, nil
}
// get postgresql session by sid
func (mp *PostgresqlProvider) SessionRead(sid string) (session.SessionStore, error) {
c := mp.connectInit()
row := c.QueryRow("select session_data from session where session_key=$1", sid)
var sessiondata []byte
err := row.Scan(&sessiondata)
if err == sql.ErrNoRows {
_, err = c.Exec("insert into session(session_key,session_data,session_expiry) values($1,$2,$3)",
sid, "", time.Now().Format(time.RFC3339))
if err != nil {
return nil, err
}
} else if err != nil {
return nil, err
}
var kv map[interface{}]interface{}
if len(sessiondata) == 0 {
kv = make(map[interface{}]interface{})
} else {
kv, err = session.DecodeGob(sessiondata)
if err != nil {
return nil, err
}
}
rs := &PostgresqlSessionStore{c: c, sid: sid, values: kv}
return rs, nil
}
func (cp *CouchbaseProvider) SessionRegenerate(oldsid, sid string) (session.SessionStore, error) {
cp.b = cp.getBucket()
var doc []byte
if err := cp.b.Get(oldsid, &doc); err != nil || doc == nil {
cp.b.Set(sid, int(cp.maxlifetime), "")
} else {
err := cp.b.Delete(oldsid)
if err != nil {
return nil, err
}
_, _ = cp.b.Add(sid, int(cp.maxlifetime), doc)
}
err := cp.b.Get(sid, &doc)
if err != nil {
return nil, err
}
var kv map[interface{}]interface{}
if doc == nil {
kv = make(map[interface{}]interface{})
} else {
kv, err = session.DecodeGob(doc)
if err != nil {
return nil, err
}
}
cs := &CouchbaseSessionStore{b: cp.b, sid: sid, values: kv, maxlifetime: cp.maxlifetime}
return cs, nil
}
// read redis session by sid
func (rp *RedisProvider) SessionRead(sid string) (session.SessionStore, error) {
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 = session.DecodeGob([]byte(kvs))
if err != nil {
return nil, err
}
}
rs := &RedisSessionStore{p: rp.poollist, sid: sid, values: kv, maxlifetime: rp.maxlifetime}
return rs, nil
}
// read couchbase session by sid
func (cp *CouchbaseProvider) SessionRead(sid string) (session.SessionStore, error) {
cp.b = cp.getBucket()
var doc []byte
err := cp.b.Get(sid, &doc)
var kv map[interface{}]interface{}
if doc == nil {
kv = make(map[interface{}]interface{})
} else {
kv, err = session.DecodeGob(doc)
if err != nil {
return nil, err
}
}
cs := &CouchbaseSessionStore{b: cp.b, sid: sid, values: kv, maxlifetime: cp.maxlifetime}
return cs, nil
}
// generate new sid for mysql session
func (mp *MysqlProvider) SessionRegenerate(oldsid, sid string) (session.SessionStore, error) {
c := mp.connectInit()
row := c.QueryRow("select session_data from session where session_key=?", oldsid)
var sessiondata []byte
err := row.Scan(&sessiondata)
if err == sql.ErrNoRows {
c.Exec("insert into session(`session_key`,`session_data`,`session_expiry`) values(?,?,?)", oldsid, "", time.Now().Unix())
}
c.Exec("update session set `session_key`=? where session_key=?", sid, oldsid)
var kv map[interface{}]interface{}
if len(sessiondata) == 0 {
kv = make(map[interface{}]interface{})
} else {
kv, err = session.DecodeGob(sessiondata)
if err != nil {
return nil, err
}
}
rs := &MysqlSessionStore{c: c, sid: sid, values: kv}
return rs, nil
}
// generate new sid for memcache session
func (rp *MemProvider) SessionRegenerate(oldsid, sid string) (session.SessionStore, error) {
if client == nil {
if err := rp.connectInit(); err != nil {
return nil, err
}
}
var contain []byte
if item, err := client.Get(sid); err != nil || len(item.Value) == 0 {
// oldsid doesn't exists, set the new sid directly
// ignore error here, since if it return error
// the existed value will be 0
item.Key = sid
item.Value = []byte("")
item.Expiration = int32(rp.maxlifetime)
client.Set(item)
} else {
client.Delete(oldsid)
item.Key = sid
item.Value = item.Value
item.Expiration = int32(rp.maxlifetime)
client.Set(item)
contain = item.Value
}
var kv map[interface{}]interface{}
if len(contain) == 0 {
kv = make(map[interface{}]interface{})
} else {
var err error
kv, err = session.DecodeGob(contain)
if err != nil {
return nil, err
}
}
rs := &MemcacheSessionStore{sid: sid, values: kv, maxlifetime: rp.maxlifetime}
return rs, nil
}
// read memcache session by sid
func (rp *MemProvider) SessionRead(sid string) (session.SessionStore, error) {
if client == nil {
if err := rp.connectInit(); err != nil {
return nil, err
}
}
item, err := client.Get(sid)
if err != nil {
return nil, err
}
var kv map[interface{}]interface{}
if len(item.Value) == 0 {
kv = make(map[interface{}]interface{})
} else {
kv, err = session.DecodeGob(item.Value)
if err != nil {
return nil, err
}
}
rs := &MemcacheSessionStore{sid: sid, values: kv, maxlifetime: rp.maxlifetime}
return rs, nil
}