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将获取AccessToken和jsTicket单独抽象为interface

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silenceper
2020-05-25 21:55:42 +08:00
parent c89d24990c
commit b599e93c5b
9 changed files with 238 additions and 181 deletions
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75
officialaccount/js/js.go
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@@ -1,19 +1,17 @@
package js
import (
"encoding/json"
"fmt"
"time"
"github.com/silenceper/wechat/v2/credential"
"github.com/silenceper/wechat/v2/officialaccount/context"
"github.com/silenceper/wechat/v2/util"
)
const getTicketURL = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=%s&type=jsapi"
// Js struct
type Js struct {
*context.Context
credential.JsTicketHandle
}
// Config 返回给用户jssdk配置信息
@@ -24,27 +22,31 @@ type Config struct {
Signature string `json:"signature"`
}
// resTicket 请求jsapi_tikcet返回结果
type resTicket struct {
util.CommonError
Ticket string `json:"ticket"`
ExpiresIn int64 `json:"expires_in"`
}
//NewJs init
func NewJs(context *context.Context) *Js {
js := new(Js)
js.Context = context
jsTicketHandle := credential.NewDefaultJsTicket(context.AppID, credential.CacheKeyOfficialAccountPrefix, context.Cache)
js.SetJsTicketHandle(jsTicketHandle)
return js
}
//SetJsTicketHandle 自定义js ticket取值方式
func (js *Js) SetJsTicketHandle(ticketHandle credential.JsTicketHandle) {
js.JsTicketHandle = ticketHandle
}
//GetConfig 获取jssdk需要的配置参数
//uri 为当前网页地址
func (js *Js) GetConfig(uri string) (config *Config, err error) {
config = new(Config)
var accessToken string
accessToken, err = js.GetAccessToken()
if err != nil {
return
}
var ticketStr string
ticketStr, err = js.GetTicket()
ticketStr, err = js.GetTicket(accessToken)
if err != nil {
return
}
@@ -60,50 +62,3 @@ func (js *Js) GetConfig(uri string) (config *Config, err error) {
config.Signature = sigStr
return
}
//GetTicket 获取jsapi_ticket
func (js *Js) GetTicket() (ticketStr string, err error) {
js.GetJsAPITicketLock().Lock()
defer js.GetJsAPITicketLock().Unlock()
//先从cache中取
jsAPITicketCacheKey := fmt.Sprintf("%s_jsapi_ticket_%s", context.CacheKeyPrefix, js.AppID)
val := js.Cache.Get(jsAPITicketCacheKey)
if val != nil {
ticketStr = val.(string)
return
}
var ticket resTicket
ticket, err = js.getTicketFromServer()
if err != nil {
return
}
ticketStr = ticket.Ticket
return
}
//getTicketFromServer 强制从服务器中获取ticket
func (js *Js) getTicketFromServer() (ticket resTicket, err error) {
var accessToken string
accessToken, err = js.GetAccessToken()
if err != nil {
return
}
var response []byte
url := fmt.Sprintf(getTicketURL, accessToken)
response, err = util.HTTPGet(url)
err = json.Unmarshal(response, &ticket)
if err != nil {
return
}
if ticket.ErrCode != 0 {
err = fmt.Errorf("getTicket Error : errcode=%d , errmsg=%s", ticket.ErrCode, ticket.ErrMsg)
return
}
jsAPITicketCacheKey := fmt.Sprintf("%s_jsapi_ticket_%s", context.CacheKeyPrefix, js.AppID)
expires := ticket.ExpiresIn - 1500
err = js.Cache.Set(jsAPITicketCacheKey, ticket.Ticket, time.Duration(expires)*time.Second)
return
}