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添加项目文件。

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JianWeie
2021-12-20 21:27:32 +08:00
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CoreCms.Net.Web.WebApi/Controllers/WeChatOAuth/WxOpenController.cs Normal file
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/***********************************************************************
* Project: CoreCms
* ProjectName: 核心内容管理系统
* Web: https://www.corecms.net
* Author: 大灰灰
* Email: jianweie@163.com
* CreateTime: 2021/1/31 21:45:10
* Description: 暂无
***********************************************************************/
#nullable enable
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Xml.Linq;
using CoreCms.Net.Loging;
using CoreCms.Net.Model.ViewModels.UI;
using CoreCms.Net.WeChat.Service.Configuration;
using CoreCms.Net.WeChat.Service.Enums;
using CoreCms.Net.WeChat.Service.HttpClients;
using CoreCms.Net.WeChat.Service.Mediator;
using CoreCms.Net.WeChat.Service.Models;
using CoreCms.Net.WeChat.Service.Options;
using CoreCms.Net.WeChat.Service.Utilities;
using MediatR;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Options;
using NetTaste;
using Newtonsoft.Json;
using NLog;
using SKIT.FlurlHttpClient.Wechat.Api;
namespace CoreCms.Net.Web.WebApi.Controllers.WeChatOAuth
{
/// <summary>
/// 微信小程序Controller
/// </summary>
public class WxOpenController : ControllerBase
{
private readonly WeChat.Service.HttpClients.IWeChatApiHttpClientFactory _weChatApiHttpClientFactory;
private readonly WeChatOptions _weChatOptions;
private readonly IMediator _mediator;
/// <summary>
/// 原始的加密请求（如果不加密则为null）
/// </summary>
public XDocument? EcryptRequestDocument { get; set; } = null;
/// <summary>
/// 是否使用加密
/// </summary>
public bool UsingEncryptMessage = false;
/// <summary>
/// 是否取消执行
/// </summary>
public bool CancelExecute = false;
/// <summary>
/// 是否使用兼容模式
/// </summary>
public bool UsingCompatibilityModelEncryptMessage = false;
/// <summary>
/// 微信小程序服务器交互
/// </summary>
/// <param name="weChatApiHttpClientFactory"></param>
/// <param name="weChatOptions"></param>
/// <param name="mediator"></param>
public WxOpenController(IWeChatApiHttpClientFactory weChatApiHttpClientFactory, IOptions<WeChatOptions> weChatOptions, IMediator mediator)
{
_weChatApiHttpClientFactory = weChatApiHttpClientFactory;
_mediator = mediator;
_weChatOptions = weChatOptions.Value;
}
#region GET请求用于处理微信小程序后台的URL验证
/// <summary>
/// GET请求用于处理微信小程序后台的URL验证
/// </summary>
/// <returns></returns>
[HttpGet]
[ActionName("Index")]
public ActionResult Get(PostModel postModel, string echostr)
{
if (CheckSignature.Check(postModel.Signature, postModel.Timestamp, postModel.Nonce, _weChatOptions.WxOpenToken))
{
return Content(echostr); //返回随机字符串则表示验证通过
}
else
{
return Content("failed:" + postModel.Signature + "," + CheckSignature.GetSignature(postModel.Timestamp, postModel.Nonce, _weChatOptions.WxOpenToken) + "。" + "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小程序后台的Url，请注意保持Token一致。");
}
}
#endregion
#region 接收服务器推送
/// <summary>
/// 接收服务器推送 文档：https://developers.weixin.qq.com/miniprogram/dev/framework/server-ability/message-push.html
/// </summary>
/// <returns></returns>
[HttpPost]
[ActionName("Index")]
public async Task<IActionResult> Post(PostModel postModel)
{
if (!CheckSignature.Check(postModel.Signature, postModel.Timestamp, postModel.Nonce, _weChatOptions.WxOpenToken))
{
NLogUtil.WriteFileLog(LogLevel.Error, LogType.WxPost, "接收服务器推送（签名错误）", JsonConvert.SerializeObject(postModel));
return Content("fail");
}
else
{
NLogUtil.WriteFileLog(LogLevel.Info, LogType.WxPost, "接收服务器推送（签名成功）", JsonConvert.SerializeObject(postModel));
}
postModel.Token = _weChatOptions.WxOpenToken;//根据自己后台的设置保持一致
postModel.EncodingAESKey = _weChatOptions.WxOpenEncodingAESKey;//根据自己后台的设置保持一致
postModel.AppId = _weChatOptions.WxOpenAppId;//根据自己后台的设置保持一致（必须提供）
var body = Request.Body;
//获取流数据转xml流
XDocument postDataDocument = XmlUtility.Convert(Request.GetRequestStream());
var msgXml = string.Empty;
var callbackXml = Init(postDataDocument, postModel, ref msgXml);
//怕出现误判，所以将最优结果判断
if (callbackXml != null && CancelExecute == false && !string.IsNullOrEmpty(msgXml))
{
/* 如果是 XML 格式的通知内容 */
NLogUtil.WriteFileLog(LogLevel.Info, LogType.WxPost, "接收服务器推送（XML格式的通知内容）", JsonConvert.SerializeObject(callbackXml));
var callBack = await ExecuteProcess(callbackXml, msgXml);
NLogUtil.WriteFileLog(LogLevel.Info, LogType.WxPost, "接收服务器推送（XML通知微信服务器）", callBack.Data);
return Content(callBack.Data);
}
else
{
NLogUtil.WriteFileLog(LogLevel.Info, LogType.WxPost, "接收服务器推送（解密失败）", JsonConvert.SerializeObject(callbackXml));
return Content("fail");
}
}
#endregion
#region 处理xml内容
/// <summary>
/// 对解密后的xml数据进行筛选并分发处理结果
/// </summary>
public async Task<WeChatApiCallBack> ExecuteProcess(XDocument sourceXml, string msgXml)
{
var requestType = sourceXml.Root?.Element("MsgType")?.Value;
WeChatApiCallBack callBack = new WeChatApiCallBack();
if (!string.IsNullOrEmpty(requestType))
{
var client = _weChatApiHttpClientFactory.CreateWxOpenClient();
switch (requestType)
{
case RequestMsgType.Text:
var textMessageEvent = client.DeserializeEventFromXml<SKIT.FlurlHttpClient.Wechat.Api.Events.TextMessageEvent>(msgXml);
callBack = await _mediator.Send(new TextMessageEventCommand() { EventObj = textMessageEvent });
break;
case RequestMsgType.Location:
break;
case RequestMsgType.Image:
var imageMessageEvent = client.DeserializeEventFromXml<SKIT.FlurlHttpClient.Wechat.Api.Events.ImageMessageEvent>(msgXml);
callBack = await _mediator.Send(new ImageMessageEventCommand() { EventObj = imageMessageEvent });
break;
case RequestMsgType.Voice:
var voiceMessageEvent = client.DeserializeEventFromXml<SKIT.FlurlHttpClient.Wechat.Api.Events.VoiceMessageEvent>(msgXml);
callBack = await _mediator.Send(new VoiceMessageEventCommand() { EventObj = voiceMessageEvent });
break;
case RequestMsgType.Video:
break;
case RequestMsgType.ShortVideo:
break;
case RequestMsgType.Link:
break;
case RequestMsgType.MessageEvent:
var eventType = sourceXml.Root?.Element("Event")?.Value;
if (!string.IsNullOrEmpty(eventType))
{
switch (eventType)
{
case EventType.Subscribe:
break;
case EventType.Unsubscribe:
break;
case EventType.Localtion:
break;
default:
NLogUtil.WriteFileLog(LogLevel.Info, LogType.WxPost, "接收服务器推送（处理xml内容/Event无匹配）", JsonConvert.SerializeObject(sourceXml));
break;
}
}
break;
default:
NLogUtil.WriteFileLog(LogLevel.Info, LogType.WxPost, "接收服务器推送（处理xml内容/MsgType无匹配）", JsonConvert.SerializeObject(sourceXml));
break;
}
}
else
{
NLogUtil.WriteFileLog(LogLevel.Info, LogType.WxPost, "接收服务器推送（处理xml内容/获取MsgType失败）", JsonConvert.SerializeObject(sourceXml));
}
return callBack;
}
#endregion
#region 初始化获取xml文本数据
/// <summary>
/// 初始化获取xml文本数据
/// </summary>
/// <param name="postDataDocument"></param>
/// <param name="postModel"></param>
/// <param name="msgXml"></param>
/// <returns></returns>
private XDocument? Init(XDocument postDataDocument, PostModel postModel, ref string msgXml)
{
//进行加密判断并处理
var postDataStr = postDataDocument.ToString();
XDocument decryptDoc = postDataDocument;
if (postDataDocument.Root?.Element("Encrypt") != null && !string.IsNullOrEmpty(postDataDocument.Root.Element("Encrypt")?.Value))
{
//使用了加密
UsingEncryptMessage = true;
EcryptRequestDocument = postDataDocument;
WXBizMsgCrypt msgCrype = new WXBizMsgCrypt(postModel.Token, postModel.EncodingAESKey, postModel.AppId);
var result = msgCrype.DecryptMsg(postModel.Msg_Signature, postModel.Timestamp, postModel.Nonce, postDataStr, ref msgXml);
//判断result类型
if (result != 0)
{
//验证没有通过，取消执行
CancelExecute = true;
return null;
}
if (postDataDocument.Root.Element("FromUserName") != null && !string.IsNullOrEmpty(postDataDocument.Root.Element("FromUserName")?.Value))
{
//TODO：使用了兼容模式，进行验证即可
UsingCompatibilityModelEncryptMessage = true;
}
decryptDoc = XDocument.Parse(msgXml);//完成解密
}
return decryptDoc;
}
#endregion
}
}