internal async Task <bool> InitializeAsync(
WeixinWelcomePageOptions options,
HttpContext context,
ILogger logger,
IWeixinMessageEncryptor encryptor)
{
_options = options ?? throw new ArgumentNullException(nameof(options));
HttpContext = context ?? throw new ArgumentNullException(nameof(context));
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
_encryptor = encryptor ?? throw new ArgumentNullException(nameof(encryptor));
context.Response.OnStarting(OnStartingCallback, this);
{
InitializeResult = await HandleOnceAsync();
if (InitializeResult?.Handled == true)
{
return(true);
}
if (InitializeResult?.Failure != null)
{
_logger.LogWarning(0, InitializeResult.Failure, InitializeResult.Failure.Message);
}
}
return(false);
}
protected async Task <WeixinMessageHandleResult> HandleOnceSafeAsync()
{
try
{
return(await HandleOnceSafeAsync());
}
catch (Exception ex)
{
return(WeixinMessageHandleResult.Fail(ex));
}
}
/// <summary>
/// 执行微信请求
/// </summary>
protected async Task <WeixinMessageHandleResult> HandleAsync()
{
bool handled = false;
var xml = new StreamReader(HttpContext.Request.Body).ReadToEnd();
_logger.LogDebug("Request Body({0}): {1}", xml?.Length, xml);
//Try decrypt if needed
var encryptType = HttpContext.Request.Query["encrypt_type"]; //aes
_logger.LogDebug("encrypt_type: {0}", encryptType);
var isEncrypted = encryptType == "aes";
_logger.LogDebug("isEncrypted: {0}", isEncrypted);
if (isEncrypted)
{
var msg_signature = HttpContext.Request.Query["msg_signature"];
_logger.LogDebug("msg_signature: {0}", msg_signature);
var timestamp = HttpContext.Request.Query["timestamp"];
_logger.LogDebug("timestamp: {0}", timestamp);
var nonce = HttpContext.Request.Query["nonce"];
_logger.LogDebug("nonce: {0}", nonce);
var decryptedXml = _encryptor.Decrypt(msg_signature, timestamp, nonce, xml);
_logger.LogDebug("Decrypted Request Body({0}): {1}", decryptedXml?.Length, decryptedXml);
xml = decryptedXml;
}
var received = XmlConvert.DeserializeObject <ReceivedEventArgs>(xml);
switch (received.MsgType)
{
case ReceivedMsgType.@event:
{
var ev = XmlConvert.DeserializeObject <EventReceivedEventArgs>(xml);
switch (ev.Event)
{
case ReceivedEventType.subscribe:
{
var x = XmlConvert.DeserializeObject <SubscribeEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <SubscribeEventReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.SubscribeEventReceived(ctx);
}
break;
case ReceivedEventType.unsubscribe:
{
var x = XmlConvert.DeserializeObject <UnsubscribeEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <UnsubscribeEventReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.UnsubscribeEventReceived(ctx);
}
break;
case ReceivedEventType.SCAN:
{
var x = XmlConvert.DeserializeObject <QrscanEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <QrscanEventReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.QrscanEventReceived(ctx);
}
break;
case ReceivedEventType.LOCATION:
{
var x = XmlConvert.DeserializeObject <LocationEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <LocationEventReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.LocationEventReceived(ctx);
}
break;
case ReceivedEventType.CLICK:
{
var x = XmlConvert.DeserializeObject <ClickMenuEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <ClickMenuEventReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.ClickMenuEventReceived(ctx);
}
break;
case ReceivedEventType.VIEW:
{
var x = XmlConvert.DeserializeObject <ViewMenuEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <ViewMenuEventReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.ViewMenuEventReceived(ctx);
}
break;
//case ReceivedEventType.ENTER://已确认被腾讯移除！
// {
// var x = XmlConvert.DeserializeObject<EnterEventReceivedEventArgs>(xml);
// var ctx = new WeixinReceivedContext<EnterEventReceivedEventArgs>(this, x, isEncrypted);
// handled = await _options.Events.EnterEventReceived(ctx);
// }
// break;
default:
throw new NotSupportedException($"不支持的事件[{ev.Event.ToString()}]");
}
}
break;
case ReceivedMsgType.text:
{
var x = XmlConvert.DeserializeObject <TextMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <TextMessageReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.TextMessageReceived(ctx);
}
break;
case ReceivedMsgType.image:
{
var x = XmlConvert.DeserializeObject <ImageMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <ImageMessageReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.ImageMessageReceived(ctx);
}
break;
case ReceivedMsgType.voice:
{
var x = XmlConvert.DeserializeObject <VoiceMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <VoiceMessageReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.VoiceMessageReceived(ctx);
}
break;
case ReceivedMsgType.video:
{
var x = XmlConvert.DeserializeObject <VideoMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <VideoMessageReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.VideoMessageReceived(ctx);
}
break;
case ReceivedMsgType.shortvideo:
{
var x = XmlConvert.DeserializeObject <ShortVideoMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <ShortVideoMessageReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.ShortVideoMessageReceived(ctx);
}
break;
case ReceivedMsgType.location:
{
var x = XmlConvert.DeserializeObject <LocationMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <LocationMessageReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.LocationMessageReceived(ctx);
}
break;
case ReceivedMsgType.link:
{
var x = XmlConvert.DeserializeObject <LinkMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <LinkMessageReceivedEventArgs>(this, x, isEncrypted);
handled = await _options.Events.LinkMessageReceived(ctx);
}
break;
default:
throw new NotSupportedException($"不支持的信息类型[{received.MsgType.ToString()}]");
}
await Task.FromResult(0);
return(handled ? WeixinMessageHandleResult.Handle() : WeixinMessageHandleResult.Fail("未处理"));
}
/// <summary>
/// 执行微信请求
/// </summary>
public async Task <WeixinMessageHandleResult> HandleAsync()
{
bool handled = false;
var xml = new StreamReader(_context.Request.Body).ReadToEnd();
_logger.LogDebug("Request Body({0}): {1}", xml?.Length, xml);
var received = XmlConvert.DeserializeObject <ReceivedEventArgs>(xml);
switch (received.MsgType)
{
case ReceivedMsgType.@event:
{
var ev = XmlConvert.DeserializeObject <EventReceivedEventArgs>(xml);
switch (ev.Event)
{
case ReceivedEventType.subscribe:
{
var x = XmlConvert.DeserializeObject <SubscribeEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <SubscribeEventReceivedEventArgs>(this, x);
handled = await _options.Events.SubscribeEventReceived(ctx);
}
break;
case ReceivedEventType.unsubscribe:
{
var x = XmlConvert.DeserializeObject <UnsubscribeEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <UnsubscribeEventReceivedEventArgs>(this, x);
handled = await _options.Events.UnsubscribeEventReceived(ctx);
}
break;
case ReceivedEventType.SCAN:
{
var x = XmlConvert.DeserializeObject <QrscanEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <QrscanEventReceivedEventArgs>(this, x);
handled = await _options.Events.QrscanEventReceived(ctx);
}
break;
case ReceivedEventType.LOCATION:
{
var x = XmlConvert.DeserializeObject <LocationEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <LocationEventReceivedEventArgs>(this, x);
handled = await _options.Events.LocationEventReceived(ctx);
}
break;
case ReceivedEventType.CLICK:
{
var x = XmlConvert.DeserializeObject <ClickMenuEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <ClickMenuEventReceivedEventArgs>(this, x);
handled = await _options.Events.ClickMenuEventReceived(ctx);
}
break;
case ReceivedEventType.VIEW:
{
var x = XmlConvert.DeserializeObject <ViewMenuEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <ViewMenuEventReceivedEventArgs>(this, x);
handled = await _options.Events.ViewMenuEventReceived(ctx);
}
break;
case ReceivedEventType.ENTER:
{
var x = XmlConvert.DeserializeObject <EnterEventReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <EnterEventReceivedEventArgs>(this, x);
handled = await _options.Events.EnterEventReceived(ctx);
}
break;
default:
throw new NotSupportedException($"不支持的事件[{ev.Event.ToString()}]");
}
}
break;
case ReceivedMsgType.text:
{
var x = XmlConvert.DeserializeObject <TextMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <TextMessageReceivedEventArgs>(this, x);
handled = await _options.Events.TextMessageReceived(ctx);
}
break;
case ReceivedMsgType.image:
{
var x = XmlConvert.DeserializeObject <ImageMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <ImageMessageReceivedEventArgs>(this, x);
handled = await _options.Events.ImageMessageReceived(ctx);
}
break;
case ReceivedMsgType.link:
{
var x = XmlConvert.DeserializeObject <LinkMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <LinkMessageReceivedEventArgs>(this, x);
handled = await _options.Events.LinkMessageReceived(ctx);
}
break;
case ReceivedMsgType.location:
{
var x = XmlConvert.DeserializeObject <LocationMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <LocationMessageReceivedEventArgs>(this, x);
handled = await _options.Events.LocationMessageReceived(ctx);
}
break;
case ReceivedMsgType.voice:
{
var x = XmlConvert.DeserializeObject <VoiceMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <VoiceMessageReceivedEventArgs>(this, x);
handled = await _options.Events.VoiceMessageReceived(ctx);
}
break;
case ReceivedMsgType.video:
{
var x = XmlConvert.DeserializeObject <VideoMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <VideoMessageReceivedEventArgs>(this, x);
handled = await _options.Events.VideoMessageReceived(ctx);
}
break;
case ReceivedMsgType.shortvideo:
{
var x = XmlConvert.DeserializeObject <ShortVideoMessageReceivedEventArgs>(xml);
var ctx = new WeixinReceivedContext <ShortVideoMessageReceivedEventArgs>(this, x);
handled = await _options.Events.ShortVideoMessageReceived(ctx);
}
break;
default:
throw new NotSupportedException($"不支持的信息类型[{received.MsgType.ToString()}]");
}
await Task.FromResult(0);
return(handled ? WeixinMessageHandleResult.Handle() : WeixinMessageHandleResult.Fail("未处理"));
}