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