mirror of
https://github.com/astaxie/beego.git
synced 2024-07-03 14:04:14 +00:00
248 lines
5.4 KiB
Go
248 lines
5.4 KiB
Go
// Copyright 2014 beego Author. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package couchbase for session provider
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//
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// depend on github.com/couchbaselabs/go-couchbasee
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//
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// go install github.com/couchbaselabs/go-couchbase
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//
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// Usage:
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// import(
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// _ "github.com/astaxie/beego/session/couchbase"
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// "github.com/astaxie/beego/session"
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// )
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//
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// func init() {
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// globalSessions, _ = session.NewManager("couchbase", ``{"cookieName":"gosessionid","gclifetime":3600,"ProviderConfig":"http://host:port/, Pool, Bucket"}``)
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// go globalSessions.GC()
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// }
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//
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// more docs: http://beego.me/docs/module/session.md
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package couchbase
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import (
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"net/http"
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"strings"
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"sync"
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couchbase "github.com/couchbase/go-couchbase"
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"github.com/astaxie/beego/session"
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)
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var couchbpder = &Provider{}
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// SessionStore store each session
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type SessionStore struct {
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b *couchbase.Bucket
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sid string
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lock sync.RWMutex
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values map[interface{}]interface{}
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maxlifetime int64
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}
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// Provider couchabse provided
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type Provider struct {
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maxlifetime int64
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savePath string
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pool string
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bucket string
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b *couchbase.Bucket
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}
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// Set value to couchabse session
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func (cs *SessionStore) Set(key, value interface{}) error {
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cs.lock.Lock()
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defer cs.lock.Unlock()
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cs.values[key] = value
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return nil
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}
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// Get value from couchabse session
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func (cs *SessionStore) Get(key interface{}) interface{} {
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cs.lock.RLock()
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defer cs.lock.RUnlock()
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if v, ok := cs.values[key]; ok {
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return v
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}
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return nil
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}
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// Delete value in couchbase session by given key
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func (cs *SessionStore) Delete(key interface{}) error {
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cs.lock.Lock()
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defer cs.lock.Unlock()
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delete(cs.values, key)
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return nil
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}
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// Flush Clean all values in couchbase session
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func (cs *SessionStore) Flush() error {
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cs.lock.Lock()
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defer cs.lock.Unlock()
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cs.values = make(map[interface{}]interface{})
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return nil
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}
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// SessionID Get couchbase session store id
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func (cs *SessionStore) SessionID() string {
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return cs.sid
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}
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// SessionRelease Write couchbase session with Gob string
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func (cs *SessionStore) SessionRelease(w http.ResponseWriter) {
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defer cs.b.Close()
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bo, err := session.EncodeGob(cs.values)
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if err != nil {
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return
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}
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cs.b.Set(cs.sid, int(cs.maxlifetime), bo)
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}
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func (cp *Provider) getBucket() *couchbase.Bucket {
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c, err := couchbase.Connect(cp.savePath)
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if err != nil {
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return nil
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}
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pool, err := c.GetPool(cp.pool)
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if err != nil {
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return nil
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}
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bucket, err := pool.GetBucket(cp.bucket)
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if err != nil {
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return nil
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}
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return bucket
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}
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// SessionInit init couchbase session
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// savepath like couchbase server REST/JSON URL
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// e.g. http://host:port/, Pool, Bucket
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func (cp *Provider) SessionInit(maxlifetime int64, savePath string) error {
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cp.maxlifetime = maxlifetime
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configs := strings.Split(savePath, ",")
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if len(configs) > 0 {
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cp.savePath = configs[0]
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}
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if len(configs) > 1 {
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cp.pool = configs[1]
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}
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if len(configs) > 2 {
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cp.bucket = configs[2]
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}
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return nil
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}
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// SessionRead read couchbase session by sid
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func (cp *Provider) SessionRead(sid string) (session.Store, error) {
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cp.b = cp.getBucket()
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var (
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kv map[interface{}]interface{}
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err error
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doc []byte
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)
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err = cp.b.Get(sid, &doc)
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if err != nil {
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return nil, err
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} else if doc == nil {
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kv = make(map[interface{}]interface{})
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} else {
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kv, err = session.DecodeGob(doc)
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if err != nil {
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return nil, err
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}
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}
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cs := &SessionStore{b: cp.b, sid: sid, values: kv, maxlifetime: cp.maxlifetime}
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return cs, nil
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}
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// SessionExist Check couchbase session exist.
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// it checkes sid exist or not.
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func (cp *Provider) SessionExist(sid string) bool {
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cp.b = cp.getBucket()
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defer cp.b.Close()
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var doc []byte
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if err := cp.b.Get(sid, &doc); err != nil || doc == nil {
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return false
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}
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return true
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}
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// SessionRegenerate remove oldsid and use sid to generate new session
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func (cp *Provider) SessionRegenerate(oldsid, sid string) (session.Store, error) {
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cp.b = cp.getBucket()
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var doc []byte
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if err := cp.b.Get(oldsid, &doc); err != nil || doc == nil {
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cp.b.Set(sid, int(cp.maxlifetime), "")
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} else {
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err := cp.b.Delete(oldsid)
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if err != nil {
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return nil, err
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}
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_, _ = cp.b.Add(sid, int(cp.maxlifetime), doc)
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}
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err := cp.b.Get(sid, &doc)
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if err != nil {
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return nil, err
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}
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var kv map[interface{}]interface{}
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if doc == nil {
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kv = make(map[interface{}]interface{})
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} else {
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kv, err = session.DecodeGob(doc)
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if err != nil {
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return nil, err
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}
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}
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cs := &SessionStore{b: cp.b, sid: sid, values: kv, maxlifetime: cp.maxlifetime}
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return cs, nil
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}
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// SessionDestroy Remove bucket in this couchbase
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func (cp *Provider) SessionDestroy(sid string) error {
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cp.b = cp.getBucket()
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defer cp.b.Close()
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cp.b.Delete(sid)
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return nil
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}
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// SessionGC Recycle
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func (cp *Provider) SessionGC() {
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}
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// SessionAll return all active session
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func (cp *Provider) SessionAll() int {
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return 0
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}
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func init() {
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session.Register("couchbase", couchbpder)
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}
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