forked from golang/hotime
77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
package context
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import (
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"encoding/json"
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"fmt"
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"log"
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"sync"
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"time"
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"github.com/silenceper/wechat/util"
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)
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const (
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//qyAccessTokenURL 获取access_token的接口
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qyAccessTokenURL = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=%s&corpsecret=%s"
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)
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//ResQyAccessToken struct
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type ResQyAccessToken struct {
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util.CommonError
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AccessToken string `json:"access_token"`
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ExpiresIn int64 `json:"expires_in"`
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}
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//SetQyAccessTokenLock 设置读写锁（一个appID一个读写锁）
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func (ctx *Context) SetQyAccessTokenLock(l *sync.RWMutex) {
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ctx.accessTokenLock = l
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}
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//GetQyAccessToken 获取access_token
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func (ctx *Context) GetQyAccessToken() (accessToken string, err error) {
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ctx.accessTokenLock.Lock()
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defer ctx.accessTokenLock.Unlock()
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accessTokenCacheKey := fmt.Sprintf("qy_access_token_%s", ctx.AppID)
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val := ctx.Cache.Get(accessTokenCacheKey)
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if val != nil {
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accessToken = val.(string)
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return
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}
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//从微信服务器获取
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var resQyAccessToken ResQyAccessToken
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resQyAccessToken, err = ctx.GetQyAccessTokenFromServer()
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if err != nil {
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return
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}
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accessToken = resQyAccessToken.AccessToken
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return
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}
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//GetQyAccessTokenFromServer 强制从微信服务器获取token
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func (ctx *Context) GetQyAccessTokenFromServer() (resQyAccessToken ResQyAccessToken, err error) {
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log.Printf("GetQyAccessTokenFromServer")
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url := fmt.Sprintf(qyAccessTokenURL, ctx.AppID, ctx.AppSecret)
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var body []byte
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body, err = util.HTTPGet(url)
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if err != nil {
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return
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}
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err = json.Unmarshal(body, &resQyAccessToken)
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if err != nil {
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return
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}
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if resQyAccessToken.ErrCode != 0 {
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err = fmt.Errorf("get qy_access_token error : errcode=%v , errormsg=%v", resQyAccessToken.ErrCode, resQyAccessToken.ErrMsg)
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return
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}
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qyAccessTokenCacheKey := fmt.Sprintf("qy_access_token_%s", ctx.AppID)
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expires := resQyAccessToken.ExpiresIn - 1500
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err = ctx.Cache.Set(qyAccessTokenCacheKey, resQyAccessToken.AccessToken, time.Duration(expires)*time.Second)
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return
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}
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