1.验证token
/// <summary>
/// 初始化
/// </summary>
/// <param name="signature"></param>
/// <param name="timestamp"></param>
/// <param name="nonce"></param>
/// <param name="echostr"></param>
/// <returns></returns>
public ContentResult Wechat(string signature, string timestamp, string nonce, string echostr)
{
WechatBase wechat = WechatBase.GetWechat("wshl");
if (string.IsNullOrEmpty(echostr))
{
using (Stream req = Request.InputStream)
{
req.Seek(0, System.IO.SeekOrigin.Begin);
string xml = new StreamReader(req).ReadToEnd();
///异步调用处理
System.Threading.Tasks.Task.Run(() =>
{
wechat.Subscribe(xml);
});
}
return Content("success");
}
else
{
if (wechat.CheckSignature(signature, timestamp, nonce, echostr))
{
return Content(echostr);
}
return Content("Error!");
}
}
/// <summary>
/// 校验消息是否来源于微信
/// </summary>
/// <param name="signature"></param>
/// <param name="timestamp"></param>
/// <param name="nonce"></param>
/// <param name="echostr"></param>
/// <returns></returns>
public bool CheckSign(string signature, string timestamp, string nonce, string echostr)
{
List<string> signList = new List<string>();
signList.Add(timestamp);
signList.Add(nonce);
signList.Add(_token);
signList.Sort();
string signStr = string.Join("", signList.ToArray());
byte[] dataToHash = Encoding.ASCII.GetBytes(signStr);
byte[] hashvalue = ((HashAlgorithm)CryptoConfig.CreateFromName("SHA1")).ComputeHash(dataToHash);
StringBuilder sb = new StringBuilder();
foreach (byte b in hashvalue)
{
sb.Append(b.ToString("x2"));
}
if (signature == sb.ToString())
{
return true;
}
else
{
return false;
}
}
2.回复文本消息
/// <summary>
/// 给用户发送文本消息
/// </summary>
/// <param name="openID"></param>
/// <param name="message"></param>
/// <returns></returns>
public bool SendTextMsg(string openID, string message)
{
string url = string.Format("{0}/cgi-bin/message/custom/send?access_token=={1}", _accessPoint, AccessToken);
string backJson = string.Empty;
string postJson = new
{
touser = openID,
msgtype = "text",
text = new
{
content = message
}
}.ToJson();
if(_http.Post(ref backJson, url, postJson))
{
JsonBase result = backJson.Deserialize<JsonBase>();
if(result.ErrCode == 0)
{
return true;
}
return false;
}
else
{
return false;
}
}
3.回复图片信息
/// <summary>
/// 给用户发送图片消息
/// </summary>
/// <param name="openID"></param>
/// <param name="message"></param>
/// <returns></returns>
public bool SendImgMsg(string openID, string message)
{
string url = string.Format("{0}/cgi-bin/message/custom/send?access_token=={1}", _accessPoint, AccessToken);
string backJson = string.Empty;
string postJson = new
{
touser = openID,
template_id = "",
data = ""
}.ToJson();
return true;
}
4.单个发送模板信息
/// <summary>
/// 单个发送模板消息
/// </summary>
/// <param name="openID"></param>
/// <param name="templateID"></param>
/// <param name="linkUrl"></param>
/// <param name="data"></param>
/// <returns></returns>
public MessageJson SendTemplateMsg(string openID, string templateID, string linkUrl, object data, string color = "black")
{
try
{
string url = string.Format("{0}/cgi-bin/message/template/send?access_token={1}", _accessPoint, AccessToken);
string backJson = string.Empty;
string postJson = new
{
touser = openID,
template_id = templateID,
data = data
}.ToJson();
if(_http.Post(ref backJson, url, postJson))
{
MessageJson msg = backJson.Deserialize<MessageJson>();
if(msg == null)
{
msg = new MessageJson { ErrCode = 99999, ErrMsg = "Wechat:send template message return json:" + backJson };
}
return msg;
}
return new MessageJson { ErrCode = 99999, ErrMsg = "Wechat:send template message request failed!" }; ;
}
catch(Exception e)
{
Log.WriteLog(e.Message);
return new MessageJson { ErrCode = 99999, ErrMsg = e.Message };
}
}
6.获取推广信息
/// <summary>
/// 获取推广二维码
/// </summary>
/// <param name="action">QR_LIMIT_SCENE/QR_LIMIT_STR_SCENE</param>
/// <param name="objScene"></param>
/// <returns></returns>
public SceneQRResult GetQrUrl(string actionTp, object actionInfo)
{
try
{
string url = string.Format("{0}/cgi-bin/qrcode/create?access_token={1}", _accessPoint, AccessToken);
string backJson = string.Empty;
string postJson = new
{
action_name = actionTp,
action_info = new
{
scene = actionInfo
}
}.ToJson();
if (_http.Post(ref backJson, url, postJson))
{
SceneQRResult msg = backJson.Deserialize<SceneQRResult>();
if(msg == null)
{
return new SceneQRResult { ErrCode = 9999, ErrMsg = "Wechat:deserialize json exception!\r\n" + backJson };
}
return msg;
}
return new SceneQRResult { ErrCode = 9999, ErrMsg = "Wechat:QRCode request failed!" };
}
catch(Exception e)
{
Log.WriteLog(e.Message);
return new SceneQRResult { ErrCode = 9999, ErrMsg = e.Message };
}
}
7.显示接收的微信图片
在head中增加 <meta name="referrer" content="never">
