mirror of
https://github.com/astaxie/beego.git
synced 2024-12-23 11:00:50 +00:00
251 lines
6.4 KiB
Go
251 lines
6.4 KiB
Go
// Copyright 2014 beego Author. All Rights Reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// package postgresql for session provider
|
|
//
|
|
// depends on github.com/lib/pq:
|
|
//
|
|
// go install github.com/lib/pq
|
|
//
|
|
//
|
|
// needs this table in your database:
|
|
//
|
|
// CREATE TABLE session (
|
|
// session_key char(64) NOT NULL,
|
|
// session_data bytea,
|
|
// session_expiry timestamp NOT NULL,
|
|
// CONSTRAINT session_key PRIMARY KEY(session_key)
|
|
// );
|
|
|
|
// will be activated with these settings in app.conf:
|
|
|
|
// SessionOn = true
|
|
// SessionProvider = postgresql
|
|
// SessionSavePath = "user=a password=b dbname=c sslmode=disable"
|
|
// SessionName = session
|
|
//
|
|
//
|
|
// Usage:
|
|
// import(
|
|
// _ "github.com/astaxie/beego/session/postgresql"
|
|
// "github.com/astaxie/beego/session"
|
|
// )
|
|
//
|
|
// func init() {
|
|
// globalSessions, _ = session.NewManager("postgresql", ``{"cookieName":"gosessionid","gclifetime":3600,"ProviderConfig":"user=pqgotest dbname=pqgotest sslmode=verify-full"}``)
|
|
// go globalSessions.GC()
|
|
// }
|
|
//
|
|
// more docs: http://beego.me/docs/module/session.md
|
|
package session
|
|
|
|
import (
|
|
"database/sql"
|
|
"net/http"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/astaxie/beego/session"
|
|
|
|
_ "github.com/lib/pq"
|
|
)
|
|
|
|
var postgresqlpder = &PostgresqlProvider{}
|
|
|
|
// postgresql session store
|
|
type PostgresqlSessionStore struct {
|
|
c *sql.DB
|
|
sid string
|
|
lock sync.RWMutex
|
|
values map[interface{}]interface{}
|
|
}
|
|
|
|
// set value in postgresql session.
|
|
// it is temp value in map.
|
|
func (st *PostgresqlSessionStore) Set(key, value interface{}) error {
|
|
st.lock.Lock()
|
|
defer st.lock.Unlock()
|
|
st.values[key] = value
|
|
return nil
|
|
}
|
|
|
|
// get value from postgresql session
|
|
func (st *PostgresqlSessionStore) Get(key interface{}) interface{} {
|
|
st.lock.RLock()
|
|
defer st.lock.RUnlock()
|
|
if v, ok := st.values[key]; ok {
|
|
return v
|
|
} else {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
// delete value in postgresql session
|
|
func (st *PostgresqlSessionStore) Delete(key interface{}) error {
|
|
st.lock.Lock()
|
|
defer st.lock.Unlock()
|
|
delete(st.values, key)
|
|
return nil
|
|
}
|
|
|
|
// clear all values in postgresql session
|
|
func (st *PostgresqlSessionStore) Flush() error {
|
|
st.lock.Lock()
|
|
defer st.lock.Unlock()
|
|
st.values = make(map[interface{}]interface{})
|
|
return nil
|
|
}
|
|
|
|
// get session id of this postgresql session store
|
|
func (st *PostgresqlSessionStore) SessionID() string {
|
|
return st.sid
|
|
}
|
|
|
|
// save postgresql session values to database.
|
|
// must call this method to save values to database.
|
|
func (st *PostgresqlSessionStore) SessionRelease(w http.ResponseWriter) {
|
|
defer st.c.Close()
|
|
b, err := session.EncodeGob(st.values)
|
|
if err != nil {
|
|
return
|
|
}
|
|
st.c.Exec("UPDATE session set session_data=$1, session_expiry=$2 where session_key=$3",
|
|
b, time.Now().Format(time.RFC3339), st.sid)
|
|
|
|
}
|
|
|
|
// postgresql session provider
|
|
type PostgresqlProvider struct {
|
|
maxlifetime int64
|
|
savePath string
|
|
}
|
|
|
|
// connect to postgresql
|
|
func (mp *PostgresqlProvider) connectInit() *sql.DB {
|
|
db, e := sql.Open("postgres", mp.savePath)
|
|
if e != nil {
|
|
return nil
|
|
}
|
|
return db
|
|
}
|
|
|
|
// init postgresql session.
|
|
// savepath is the connection string of postgresql.
|
|
func (mp *PostgresqlProvider) SessionInit(maxlifetime int64, savePath string) error {
|
|
mp.maxlifetime = maxlifetime
|
|
mp.savePath = savePath
|
|
return 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
|
|
}
|
|
|
|
// check postgresql session exist
|
|
func (mp *PostgresqlProvider) SessionExist(sid string) bool {
|
|
c := mp.connectInit()
|
|
defer c.Close()
|
|
row := c.QueryRow("select session_data from session where session_key=$1", sid)
|
|
var sessiondata []byte
|
|
err := row.Scan(&sessiondata)
|
|
|
|
if err == sql.ErrNoRows {
|
|
return false
|
|
} else {
|
|
return true
|
|
}
|
|
}
|
|
|
|
// generate new sid for postgresql session
|
|
func (mp *PostgresqlProvider) SessionRegenerate(oldsid, sid string) (session.SessionStore, error) {
|
|
c := mp.connectInit()
|
|
row := c.QueryRow("select session_data from session where session_key=$1", oldsid)
|
|
var sessiondata []byte
|
|
err := row.Scan(&sessiondata)
|
|
if err == sql.ErrNoRows {
|
|
c.Exec("insert into session(session_key,session_data,session_expiry) values($1,$2,$3)",
|
|
oldsid, "", time.Now().Format(time.RFC3339))
|
|
}
|
|
c.Exec("update session set session_key=$1 where session_key=$2", 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 := &PostgresqlSessionStore{c: c, sid: sid, values: kv}
|
|
return rs, nil
|
|
}
|
|
|
|
// delete postgresql session by sid
|
|
func (mp *PostgresqlProvider) SessionDestroy(sid string) error {
|
|
c := mp.connectInit()
|
|
c.Exec("DELETE FROM session where session_key=$1", sid)
|
|
c.Close()
|
|
return nil
|
|
}
|
|
|
|
// delete expired values in postgresql session
|
|
func (mp *PostgresqlProvider) SessionGC() {
|
|
c := mp.connectInit()
|
|
c.Exec("DELETE from session where EXTRACT(EPOCH FROM (current_timestamp - session_expiry)) > $1", mp.maxlifetime)
|
|
c.Close()
|
|
return
|
|
}
|
|
|
|
// count values in postgresql session
|
|
func (mp *PostgresqlProvider) SessionAll() int {
|
|
c := mp.connectInit()
|
|
defer c.Close()
|
|
var total int
|
|
err := c.QueryRow("SELECT count(*) as num from session").Scan(&total)
|
|
if err != nil {
|
|
return 0
|
|
}
|
|
return total
|
|
}
|
|
|
|
func init() {
|
|
session.Register("postgresql", postgresqlpder)
|
|
}
|