/// <summary>
/// 用于解密从微信服务器中,发送过来的加密信息
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public ResultReturn <string> DecryptMessage(string appId, string encryptMsg)
{
var config = _gateway.Get <MPConfiguration>(appId);
var ret = WXBizMsgCrypt.DecryptMsg(encryptMsg, config.EncryptAESKey);
if (ret.code == 0)
{
return(new SuccessResultReturn <string>(ret.msg));
}
else
{
return(new FailResultReturn <string>("解密失败", ret.code));
}
}
/// <summary>
/// 通过网页跳转后获取到的code,取得用户openID
/// </summary>
/// <param name="appID"></param>
/// <param name="code">授权跳转后,传入的code值</param>
/// <returns></returns>
public async Task <ResultReturn <GetAccessToken_Result> > GetAccessToken(string appID, string code)
{
var item = _gateway.Get(appID);
if (item == null)
{
throw new ArgumentOutOfRangeException(nameof(appID));
}
if (string.IsNullOrWhiteSpace(code))
{
throw new ArgumentNullException(nameof(code));
}
var result = await CommonApi.Get(appID,
$"/sns/oauth2/access_token?appid={appID}&secret={item.AppSerect}&code={code}&grant_type=authorization_code");
if (result.IsSuccess)
{
var json = result.ReturnData;
var ret = new GetAccessToken_Result()
{
AccessToken = json.GetString("access_token"),
Expires = json.GetInt("expires_in"),
RefreshToken = json.GetString("refresh_token"),
OpenId = json.GetString("openid"),
Type = json.GetString("scope") == "base" ? SnsapiType.Base : SnsapiType.UserInfo,
UionId = json.GetString("unionid")
};
return(new SuccessResultReturn <GetAccessToken_Result>(ret));
}
else
{
return(result.Cast <GetAccessToken_Result>(default));
public async Task <IActionResult> Service([FromServices] IWechatGateway gateway,
[FromQuery] string signature,
[FromQuery] string timestamp,
[FromQuery] string nonce,
[FromQuery] string echostr,
[FromRoute] string appID = "",
[FromServices] ILoggerFactory logger = null
)
{
if (gateway == null)
{
return(Content("请先注册微信小程序"));
}
logger?.CreateLogger("miniprogram")?.Log(LogLevel.Trace, $"微信调用:signature={signature},timestamp={timestamp},nonce={nonce},echostr={echostr}");
if (string.IsNullOrWhiteSpace(appID))
{
return(Content("AppID不能为空"));
}
var config = gateway.Get <MiniProgramConfiguration>(appID);
if (config == null)
{
return(Content("该AppID非小程序配置"));
}
if (CheckSignature.Check(signature, timestamp, nonce, config.Token))
{
return(Content(echostr)); //返回随机字符串则表示验证通过
}
else
{
return(Content($"failed:{signature},{CheckSignature.GetSignature(timestamp, nonce, config.Token).ToString()}。如果你在浏览器中看到这句话，说明此地址可以被作为微信公众账号后台的Url，请注意保持Token一致。"));
}
}
public async Task <IActionResult> ServicePost([FromServices] IWechatGateway gateway,
[FromQuery] string signature,
[FromQuery] string timestamp,
[FromQuery] string nonce,
[FromQuery] string echostr,
[FromRoute] string appID = "",
[FromServices] ILoggerFactory logger = null,
[FromServices] IWechatMPApi mpApi = null,
[FromServices] MessageQueue msgHandler = null,
[FromServices] IMPMessageExecutor messageExecutor = null
)
{
//return Content("");
if (gateway == null)
{
return(Content("请先注册微信公众号服务"));
}
logger?.CreateLogger("weixin")?.Log(LogLevel.Trace, $"微信调用:signature={signature},timestamp={timestamp},nonce={nonce},echostr={echostr}");
if (string.IsNullOrWhiteSpace(appID))
{
return(Content("AppID不能为空"));
}
var config = gateway.Get(appID) as MPConfiguration;
if (config == null)
{
return(Content("该AppID非公众号配置或AppID不存在"));
}
if (CheckSignature.Check(signature, timestamp, nonce, config.Token))
{
return(Content("校验无效,请检查token"));
}
if (messageExecutor == null)
{
return(Content("success"));
}
Request.EnableBuffering();
//自定义MessageHandler，对微信请求的详细判断操作都在这里面。
var inputStream = Request.Body;
inputStream.Position = 0;
var xml = inputStream.ReadToEnd();
var msg = mpApi.Message.DecodeMPRequestMsg(xml);
if (msg.IsSuccess)
{
if (await msgHandler.AddMessage(msg.ReturnData))
{
var response = await messageExecutor.Execute(msg.ReturnData);
if (response == null)
{
return(Content("success"));
}
//if (!string.IsNullOrWhiteSpace(config.EncryptAESKey))
//{
// return Content(mpApi.Message.EncryptMessage(appID, response.ToXml()));
//}
return(Content(response.ToXml()));
}
else
{
return(Content("success"));
}
}
else
{
if (msg.ReturnCode == 1000)
{
return(Content("success"));
}
return(Content("error"));
}
}