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Beego/session/sess_redis.go
2013-10-28 22:19:37 +08:00

134 lines
2.9 KiB
Go

package session
import (
"github.com/garyburd/redigo/redis"
"strconv"
"strings"
)
var redispder = &RedisProvider{}
var MAX_POOL_SIZE = 100
var redisPool chan redis.Conn
type RedisSessionStore struct {
c redis.Conn
sid string
}
func (rs *RedisSessionStore) Set(key, value interface{}) error {
//_, err := rs.c.Do("HSET", rs.sid, key, value)
_, err := rs.c.Do("HSET", rs.sid, key, value)
return err
}
func (rs *RedisSessionStore) Get(key interface{}) interface{} {
reply, err := rs.c.Do("HGET", rs.sid, key)
if err != nil {
return nil
}
return reply
}
func (rs *RedisSessionStore) Delete(key interface{}) error {
//_, err := rs.c.Do("HDEL", rs.sid, key)
_, err := rs.c.Do("HDEL", rs.sid, key)
return err
}
func (rs *RedisSessionStore) Flush() error {
_, err := rs.c.Do("DEL", rs.sid)
return err
}
func (rs *RedisSessionStore) SessionID() string {
return rs.sid
}
func (rs *RedisSessionStore) SessionRelease() {
rs.c.Close()
}
type RedisProvider struct {
maxlifetime int64
savePath string
poolsize int
password string
poollist *redis.Pool
}
//savepath like redisserveraddr,poolsize,password
//127.0.0.1:6379,100,astaxie
func (rp *RedisProvider) SessionInit(maxlifetime int64, savePath string) error {
rp.maxlifetime = maxlifetime
configs := strings.Split(savePath, ",")
if len(configs) > 0 {
rp.savePath = configs[0]
}
if len(configs) > 1 {
poolsize, err := strconv.Atoi(configs[1])
if err != nil || poolsize <= 0 {
rp.poolsize = MAX_POOL_SIZE
} else {
rp.poolsize = poolsize
}
} else {
rp.poolsize = MAX_POOL_SIZE
}
if len(configs) > 2 {
rp.password = configs[2]
}
rp.poollist = redis.NewPool(func() (redis.Conn, error) {
c, err := redis.Dial("tcp", rp.savePath)
if err != nil {
return nil, err
}
if rp.password != "" {
if _, err := c.Do("AUTH", rp.password); err != nil {
c.Close()
return nil, err
}
}
return c, err
}, rp.poolsize)
return nil
}
func (rp *RedisProvider) SessionRead(sid string) (SessionStore, error) {
c := rp.poollist.Get()
//if str, err := redis.String(c.Do("GET", sid)); err != nil || str == "" {
if str, err := redis.String(c.Do("HGET", sid, sid)); err != nil || str == "" {
//c.Do("SET", sid, sid, rp.maxlifetime)
c.Do("HSET", sid, sid, rp.maxlifetime)
}
c.Do("EXPIRE", sid, rp.maxlifetime)
rs := &RedisSessionStore{c: c, sid: sid}
return rs, nil
}
func (rp *RedisProvider) SessionRegenerate(oldsid, sid string) (SessionStore, error) {
c := rp.poollist.Get()
if str, err := redis.String(c.Do("HGET", oldsid, oldsid)); err != nil || str == "" {
c.Do("HSET", oldsid, oldsid, rp.maxlifetime)
}
c.Do("RENAME", oldsid, sid)
c.Do("EXPIRE", sid, rp.maxlifetime)
rs := &RedisSessionStore{c: c, sid: sid}
return rs, nil
}
func (rp *RedisProvider) SessionDestroy(sid string) error {
c := rp.poollist.Get()
c.Do("DEL", sid)
return nil
}
func (rp *RedisProvider) SessionGC() {
return
}
func init() {
Register("redis", redispder)
}