Files
PMail/server/hooks/wechat_push/wechat_push.go
jinnrry 318fea24ad v2.0
2023-08-12 12:49:57 +08:00

108 lines
2.7 KiB
Go

package wechat_push
import (
"encoding/json"
"fmt"
log "github.com/sirupsen/logrus"
"github.com/spf13/cast"
"io"
"net/http"
"pmail/config"
"pmail/dto"
"pmail/dto/parsemail"
"strings"
"time"
)
type accessTokenRes struct {
AccessToken string `db:"access_token" json:"access_token"`
ExpiresIn int `db:"expires_in" json:"expires_in"`
}
type WeChatPushHook struct {
appId string
secret string
token string
tokenExpires int64
templateId string
pushUser string
}
func (w *WeChatPushHook) SendBefore(ctx *dto.Context, email *parsemail.Email) {
}
func (w *WeChatPushHook) SendAfter(ctx *dto.Context, email *parsemail.Email, err map[string]error) {
}
func (w *WeChatPushHook) ReceiveParseBefore(email []byte) {
}
func (w *WeChatPushHook) ReceiveParseAfter(email *parsemail.Email) {
if w.appId == "" || w.secret == "" || w.pushUser == "" {
return
}
w.sendUserMsg(nil, w.pushUser, string(email.Text))
}
func (w *WeChatPushHook) getWxAccessToken() string {
if w.tokenExpires > time.Now().Unix() {
return w.token
}
resp, err := http.Get(fmt.Sprintf("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s", w.appId, w.secret))
if err != nil {
return ""
}
body, _ := io.ReadAll(resp.Body)
var ret accessTokenRes
_ = json.Unmarshal(body, &ret)
if ret.AccessToken != "" {
w.token = ret.AccessToken
w.tokenExpires = time.Now().Unix() + cast.ToInt64(ret.ExpiresIn)
}
return ret.AccessToken
}
type sendMsgRequest struct {
Touser string `db:"touser" json:"touser"`
Template_id string `db:"template_id" json:"template_id"`
Url string `db:"url" json:"url"`
Data SendData `db:"data" json:"data"`
}
type SendData struct {
Content DataItem `json:"Content"`
}
type DataItem struct {
Value string `json:"value"`
Color string `json:"color"`
}
func (w *WeChatPushHook) sendUserMsg(ctx *dto.Context, userId string, content string) {
sendMsgReq, _ := json.Marshal(sendMsgRequest{
Touser: userId,
Template_id: w.templateId,
Url: "http://mail." + config.Instance.Domain,
Data: SendData{Content: DataItem{Value: content, Color: "#000000"}},
})
_, err := http.Post("https://api.weixin.qq.com/cgi-bin/message/template/send?access_token="+w.getWxAccessToken(), "application/json", strings.NewReader(string(sendMsgReq)))
if err != nil {
log.WithContext(ctx).Errorf("wechat push error %+v", err)
}
}
func NewWechatPushHook() *WeChatPushHook {
ret := &WeChatPushHook{
appId: config.Instance.WeChatPushAppId,
secret: config.Instance.WeChatPushSecret,
templateId: config.Instance.WeChatPushTemplateId,
pushUser: config.Instance.WeChatPushUserId,
}
return ret
}