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-rw-r--r--vendor/gitea.com/macaron/session/nodb/nodb.go207
1 files changed, 207 insertions, 0 deletions
diff --git a/vendor/gitea.com/macaron/session/nodb/nodb.go b/vendor/gitea.com/macaron/session/nodb/nodb.go
new file mode 100644
index 0000000000..db174e7ed1
--- /dev/null
+++ b/vendor/gitea.com/macaron/session/nodb/nodb.go
@@ -0,0 +1,207 @@
+// Copyright 2015 The Macaron Authors
+//
+// 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 session
+
+import (
+ "fmt"
+ "sync"
+
+ "gitea.com/macaron/session"
+ "github.com/lunny/nodb"
+ "github.com/lunny/nodb/config"
+)
+
+// NodbStore represents a nodb session store implementation.
+type NodbStore struct {
+ c *nodb.DB
+ sid string
+ expire int64
+ lock sync.RWMutex
+ data map[interface{}]interface{}
+}
+
+// NewNodbStore creates and returns a ledis session store.
+func NewNodbStore(c *nodb.DB, sid string, expire int64, kv map[interface{}]interface{}) *NodbStore {
+ return &NodbStore{
+ c: c,
+ expire: expire,
+ sid: sid,
+ data: kv,
+ }
+}
+
+// Set sets value to given key in session.
+func (s *NodbStore) Set(key, val interface{}) error {
+ s.lock.Lock()
+ defer s.lock.Unlock()
+
+ s.data[key] = val
+ return nil
+}
+
+// Get gets value by given key in session.
+func (s *NodbStore) Get(key interface{}) interface{} {
+ s.lock.RLock()
+ defer s.lock.RUnlock()
+
+ return s.data[key]
+}
+
+// Delete delete a key from session.
+func (s *NodbStore) Delete(key interface{}) error {
+ s.lock.Lock()
+ defer s.lock.Unlock()
+
+ delete(s.data, key)
+ return nil
+}
+
+// ID returns current session ID.
+func (s *NodbStore) ID() string {
+ return s.sid
+}
+
+// Release releases resource and save data to provider.
+func (s *NodbStore) Release() error {
+ // Skip encoding if the data is empty
+ if len(s.data) == 0 {
+ return nil
+ }
+
+ data, err := session.EncodeGob(s.data)
+ if err != nil {
+ return err
+ }
+
+ if err = s.c.Set([]byte(s.sid), data); err != nil {
+ return err
+ }
+ _, err = s.c.Expire([]byte(s.sid), s.expire)
+ return err
+}
+
+// Flush deletes all session data.
+func (s *NodbStore) Flush() error {
+ s.lock.Lock()
+ defer s.lock.Unlock()
+
+ s.data = make(map[interface{}]interface{})
+ return nil
+}
+
+// NodbProvider represents a ledis session provider implementation.
+type NodbProvider struct {
+ c *nodb.DB
+ expire int64
+}
+
+// Init initializes nodb session provider.
+func (p *NodbProvider) Init(expire int64, configs string) error {
+ p.expire = expire
+
+ cfg := new(config.Config)
+ cfg.DataDir = configs
+ dbs, err := nodb.Open(cfg)
+ if err != nil {
+ return fmt.Errorf("session/nodb: error opening db: %v", err)
+ }
+
+ p.c, err = dbs.Select(0)
+ return err
+}
+
+// Read returns raw session store by session ID.
+func (p *NodbProvider) Read(sid string) (session.RawStore, error) {
+ if !p.Exist(sid) {
+ if err := p.c.Set([]byte(sid), []byte("")); err != nil {
+ return nil, err
+ }
+ }
+
+ var kv map[interface{}]interface{}
+ kvs, err := p.c.Get([]byte(sid))
+ if err != nil {
+ return nil, err
+ }
+ if len(kvs) == 0 {
+ kv = make(map[interface{}]interface{})
+ } else {
+ kv, err = session.DecodeGob(kvs)
+ if err != nil {
+ return nil, err
+ }
+ }
+
+ return NewNodbStore(p.c, sid, p.expire, kv), nil
+}
+
+// Exist returns true if session with given ID exists.
+func (p *NodbProvider) Exist(sid string) bool {
+ count, err := p.c.Exists([]byte(sid))
+ return err == nil && count > 0
+}
+
+// Destroy deletes a session by session ID.
+func (p *NodbProvider) Destroy(sid string) error {
+ _, err := p.c.Del([]byte(sid))
+ return err
+}
+
+// Regenerate regenerates a session store from old session ID to new one.
+func (p *NodbProvider) Regenerate(oldsid, sid string) (_ session.RawStore, err error) {
+ if p.Exist(sid) {
+ return nil, fmt.Errorf("new sid '%s' already exists", sid)
+ }
+
+ kvs := make([]byte, 0)
+ if p.Exist(oldsid) {
+ if kvs, err = p.c.Get([]byte(oldsid)); err != nil {
+ return nil, err
+ } else if _, err = p.c.Del([]byte(oldsid)); err != nil {
+ return nil, err
+ }
+ }
+
+ if err = p.c.Set([]byte(sid), kvs); err != nil {
+ return nil, err
+ } else if _, err = p.c.Expire([]byte(sid), p.expire); err != nil {
+ return nil, err
+ }
+
+ 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
+ }
+ }
+
+ return NewNodbStore(p.c, sid, p.expire, kv), nil
+}
+
+// Count counts and returns number of sessions.
+func (p *NodbProvider) Count() int {
+ // FIXME: how come this library does not have DbSize() method?
+ return -1
+}
+
+// GC calls GC to clean expired sessions.
+func (p *NodbProvider) GC() {}
+
+func init() {
+ session.Register("nodb", &NodbProvider{})
+}