/** * Copyright (c) 2022 Yansen Zhang * wxcomponent is licensed under Mulan PSL v2. * You can use this software according to the terms and conditions of the Mulan PSL v2. * You may obtain a copy of Mulan PSL v2 at: * http://license.coscl.org.cn/MulanPSL2 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. * See the Mulan PSL v2 for more details. **/ package webpage import ( "crypto/sha1" "encoding/json" "fmt" "net/url" "strconv" "time" "gitee.com/yansen_zh/wxcomponent/errors" "gitee.com/yansen_zh/wxcomponent/utils" "gitee.com/yansen_zh/wxcomponent/utils/request" ) // JsapiTicketResult 通过 access_token 获取 jsapi_ticket 结果 type JsapiTicketResult struct { errors.Error Ticket string `json:"ticket"` ExpiresIn int `json:"expires_in"` } // JsapiSignature 可以用来初始化 JS SDK type JsapiSignature struct { Timestamp int64 `json:"timestamp"` NonceStr string `json:"nonceStr"` Signature string `json:"signature"` } const ( apiGetJSTicket = "https://api.weixin.qq.com/cgi-bin/ticket/getticket" ) // GetJSTicket 通过 access_token 获取 jsapi_ticket func GetJSTicket(authorizerToken string) (*JsapiTicketResult, error) { if authorizerToken == "" { return nil, errors.New("获取 jsapi_ticket authorizerToken 不能为空") } param := url.Values{} param.Set("access_token", authorizerToken) param.Set("type", "jsapi") resp, e2 := request.GetJSON(apiGetJSTicket, ¶m) if e2 != nil { return nil, e2 } result := JsapiTicketResult{} if err := json.Unmarshal(resp, &result); err != nil { return nil, err } return &result, nil } // GetJSAPISignature 获取 JsapiSignature func GetJSAPISignature(ticket, url string) *JsapiSignature { timestamp := time.Now().Unix() timestampStr := strconv.FormatInt(timestamp, 10) nonceStr := utils.RandStr(16) s1 := "jsapi_ticket=" + ticket s2 := "&noncestr=" + nonceStr s3 := "×tamp=" + timestampStr s4 := "&url=" + url plain := s1 + s2 + s3 + s4 signature := fmt.Sprintf("%x", sha1.Sum([]byte(plain))) return &JsapiSignature{ Timestamp: timestamp, NonceStr: nonceStr, Signature: signature, } }