111 lines
3.0 KiB
Go
111 lines
3.0 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 beego
|
|
|
|
import (
|
|
"fmt"
|
|
"net/url"
|
|
"strings"
|
|
)
|
|
|
|
// FlashData is a tools to maintain data when using across request.
|
|
type FlashData struct {
|
|
Data map[string]string
|
|
}
|
|
|
|
// NewFlash return a new empty FlashData struct.
|
|
func NewFlash() *FlashData {
|
|
return &FlashData{
|
|
Data: make(map[string]string),
|
|
}
|
|
}
|
|
|
|
// Set message to flash
|
|
func (fd *FlashData) Set(key string, msg string, args ...interface{}) {
|
|
if len(args) == 0 {
|
|
fd.Data[key] = msg
|
|
} else {
|
|
fd.Data[key] = fmt.Sprintf(msg, args...)
|
|
}
|
|
}
|
|
|
|
// Success writes success message to flash.
|
|
func (fd *FlashData) Success(msg string, args ...interface{}) {
|
|
if len(args) == 0 {
|
|
fd.Data["success"] = msg
|
|
} else {
|
|
fd.Data["success"] = fmt.Sprintf(msg, args...)
|
|
}
|
|
}
|
|
|
|
// Notice writes notice message to flash.
|
|
func (fd *FlashData) Notice(msg string, args ...interface{}) {
|
|
if len(args) == 0 {
|
|
fd.Data["notice"] = msg
|
|
} else {
|
|
fd.Data["notice"] = fmt.Sprintf(msg, args...)
|
|
}
|
|
}
|
|
|
|
// Warning writes warning message to flash.
|
|
func (fd *FlashData) Warning(msg string, args ...interface{}) {
|
|
if len(args) == 0 {
|
|
fd.Data["warning"] = msg
|
|
} else {
|
|
fd.Data["warning"] = fmt.Sprintf(msg, args...)
|
|
}
|
|
}
|
|
|
|
// Error writes error message to flash.
|
|
func (fd *FlashData) Error(msg string, args ...interface{}) {
|
|
if len(args) == 0 {
|
|
fd.Data["error"] = msg
|
|
} else {
|
|
fd.Data["error"] = fmt.Sprintf(msg, args...)
|
|
}
|
|
}
|
|
|
|
// Store does the saving operation of flash data.
|
|
// the data are encoded and saved in cookie.
|
|
func (fd *FlashData) Store(c *Controller) {
|
|
c.Data["flash"] = fd.Data
|
|
var flashValue string
|
|
for key, value := range fd.Data {
|
|
flashValue += "\x00" + key + "\x23" + BConfig.WebConfig.FlashSeparator + "\x23" + value + "\x00"
|
|
}
|
|
c.Ctx.SetCookie(BConfig.WebConfig.FlashName, url.QueryEscape(flashValue), 0, "/")
|
|
}
|
|
|
|
// ReadFromRequest parsed flash data from encoded values in cookie.
|
|
func ReadFromRequest(c *Controller) *FlashData {
|
|
flash := NewFlash()
|
|
if cookie, err := c.Ctx.Request.Cookie(BConfig.WebConfig.FlashName); err == nil {
|
|
v, _ := url.QueryUnescape(cookie.Value)
|
|
vals := strings.Split(v, "\x00")
|
|
for _, v := range vals {
|
|
if len(v) > 0 {
|
|
kv := strings.Split(v, "\x23"+BConfig.WebConfig.FlashSeparator+"\x23")
|
|
if len(kv) == 2 {
|
|
flash.Data[kv[0]] = kv[1]
|
|
}
|
|
}
|
|
}
|
|
//read one time then delete it
|
|
c.Ctx.SetCookie(BConfig.WebConfig.FlashName, "", -1, "/")
|
|
}
|
|
c.Data["flash"] = flash.Data
|
|
return flash
|
|
}
|