session

1. session move from astaxie/session to beego/session
2. support 4 type session

session/sess_redis.go

@@ -0,0 +1,80 @@
+package session
+
+import (
+	"github.com/garyburd/redigo/redis"
+)
+
+var redispder = &RedisProvider{}
+
+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)
+	return err
+}
+
+func (rs *RedisSessionStore) Get(key interface{}) interface{} {
+	v, err := rs.c.Do("GET", rs.sid, key)
+	if err != nil {
+		return nil
+	}
+	return v
+}
+
+func (rs *RedisSessionStore) Delete(key interface{}) error {
+	_, err := rs.c.Do("HDEL", rs.sid, key)
+	return err
+}
+
+func (rs *RedisSessionStore) SessionID() string {
+	return rs.sid
+}
+
+func (rs *RedisSessionStore) SessionRelease() {
+	rs.c.Close()
+}
+
+type RedisProvider struct {
+	maxlifetime int64
+	savePath    string
+}
+
+func (rp *RedisProvider) connectInit() redis.Conn {
+	c, err := redis.Dial("tcp", rp.savePath)
+	if err != nil {
+		return nil
+	}
+	return c
+}
+
+func (rp *RedisProvider) SessionInit(maxlifetime int64, savePath string) error {
+	rp.maxlifetime = maxlifetime
+	rp.savePath = savePath
+	return nil
+}
+
+func (rp *RedisProvider) SessionRead(sid string) (SessionStore, error) {
+	c := rp.connectInit()
+	if str, err := redis.String(c.Do("GET", sid)); err != nil || str == "" {
+		c.Do("SET", sid, sid, rp.maxlifetime)
+	}
+	rs := &RedisSessionStore{c: c, sid: sid}
+	return rs, nil
+}
+
+func (rp *RedisProvider) SessionDestroy(sid string) error {
+	c := rp.connectInit()
+	c.Do("DEL", sid)
+	return nil
+}
+
+func (rp *RedisProvider) SessionGC() {
+	return
+}
+
+func init() {
+	Register("redis", redispder)
+}