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sessioner.go
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sessioner.go
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/*
Copyright 2016 Wenhui Shen <www.webx.top>
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 echo
import (
"log"
)
var (
DefaultNopSession Sessioner = &NopSession{}
DefaultDebugSession Sessioner = &DebugSession{}
DefaultSession = DefaultNopSession
DefaultSessionOptions = NewSessionOptions(`cookie`, `SID`)
)
func NewSessionOptions(engine string, name string, args ...*CookieOptions) *SessionOptions {
cookieOptions := DefaultCookieOptions
if len(args) > 0 {
cookieOptions = args[0]
}
return &SessionOptions{
Engine: engine,
Name: name,
CookieOptions: cookieOptions,
}
}
// SessionOptions stores configuration for a session or session store.
// Fields are a subset of http.Cookie fields.
type SessionOptions struct {
Engine string //Store Engine
Name string //Session Name
*CookieOptions
}
func (s *SessionOptions) Clone() *SessionOptions {
clone := *s
if s.CookieOptions != nil {
clone.CookieOptions = s.CookieOptions.Clone()
}
return &clone
}
// Sessioner Wraps thinly gorilla-session methods.
// Session stores the values and optional configuration for a session.
type Sessioner interface {
// Get returns the session value associated to the given key.
Get(key string) interface{}
// Set sets the session value associated to the given key.
Set(key string, val interface{}) Sessioner
SetID(id string, notReload ...bool) error
ID() string
MustID() string
RemoveID(sessionID string) error
// Delete removes the session value associated to the given key.
Delete(key string) Sessioner
// Clear deletes all values in the session.
Clear() Sessioner
// AddFlash adds a flash message to the session.
// A single variadic argument is accepted, and it is optional: it defines the flash key.
// If not defined "_flash" is used by default.
AddFlash(value interface{}, vars ...string) Sessioner
// Flashes returns a slice of flash messages from the session.
// A single variadic argument is accepted, and it is optional: it defines the flash key.
// If not defined "_flash" is used by default.
Flashes(vars ...string) []interface{}
// Save saves all sessions used during the current request.
Save() error
AddPreSaveHook(func(Context) error)
SetPreSaveHook(...func(Context) error)
}
type NopSession struct {
}
func (n *NopSession) Get(name string) interface{} {
return nil
}
func (n *NopSession) Set(name string, value interface{}) Sessioner {
return n
}
func (n *NopSession) SetID(id string, notReload ...bool) error {
return nil
}
func (n *NopSession) ID() string {
return ``
}
func (n *NopSession) MustID() string {
return ``
}
func (n *NopSession) RemoveID(sessionID string) error {
return nil
}
func (n *NopSession) Delete(name string) Sessioner {
return n
}
func (n *NopSession) Clear() Sessioner {
return n
}
func (n *NopSession) AddFlash(_ interface{}, _ ...string) Sessioner {
return n
}
func (n *NopSession) Flashes(_ ...string) []interface{} {
return []interface{}{}
}
func (n *NopSession) Options(_ SessionOptions) Sessioner {
return n
}
func (n *NopSession) Save() error {
return nil
}
func (n *NopSession) AddPreSaveHook(_ func(Context) error) {
}
func (n *NopSession) SetPreSaveHook(_ ...func(Context) error) {
}
type DebugSession struct {
}
func (n *DebugSession) Get(name string) interface{} {
log.Println(`DebugSession.Get`, name)
return nil
}
func (n *DebugSession) Set(name string, value interface{}) Sessioner {
log.Println(`DebugSession.Set`, name, value)
return n
}
func (n *DebugSession) SetID(id string, notReload ...bool) error {
log.Println(`DebugSession.SetID`, id, `notReload:`, notReload)
return nil
}
func (n *DebugSession) ID() string {
log.Println(`DebugSession.ID`)
return ``
}
func (n *DebugSession) MustID() string {
log.Println(`DebugSession.MustID`)
return ``
}
func (n *DebugSession) RemoveID(sessionID string) error {
log.Println(`DebugSession.RemoveID`, sessionID)
return nil
}
func (n *DebugSession) Delete(name string) Sessioner {
log.Println(`DebugSession.Delete`, name)
return n
}
func (n *DebugSession) Clear() Sessioner {
log.Println(`DebugSession.Clear`)
return n
}
func (n *DebugSession) AddFlash(value interface{}, args ...string) Sessioner {
log.Println(`DebugSession.AddFlash`, value, args)
return n
}
func (n *DebugSession) Flashes(args ...string) []interface{} {
log.Println(`DebugSession.Flashes`, args)
return []interface{}{}
}
func (n *DebugSession) Options(options SessionOptions) Sessioner {
log.Println(`DebugSession.Options`, options)
return n
}
func (n *DebugSession) Save() error {
log.Println(`DebugSession.Save`)
return nil
}
func (n *DebugSession) AddPreSaveHook(_ func(Context) error) {
}
func (n *DebugSession) SetPreSaveHook(_ ...func(Context) error) {
}