ASP.NET MVC API 接口验证的示例代码

5、接口操作的上下文

  using DotNet.Business;
  using DotNet.Model;
  using DotNet.Utilities;

  /// <summary>
  /// APIOperateContext
  /// 接口操作的上下文
  /// 跟上下文有关的一些通用的东西放在这里处理
  /// 
  /// 修改纪录
  /// 
  /// 2016-10-31 版本：1.0 宋彪 创建文件。
  /// 
  /// <author>
  ///   <name>宋彪</name>
  ///   <date>2016-10-31</date>
  /// </author>
  /// </summary>
  public class APIOperateContext
  {
    /// <summary>
    /// 获取当前 操作上下文 (为每个处理浏览器请求的服务器线程 单独创建 操作上下文)
    /// </summary>
    public static APIOperateContext Current
    {
      get
      {
        APIOperateContext oContext = CallContext.GetData(typeof(APIOperateContext).Name) as APIOperateContext;
        if (oContext == null)
        {
          oContext = new APIOperateContext();
          CallContext.SetData(typeof(APIOperateContext).Name, oContext);
        }
        return oContext;
      }
    }

    #region Http上下文 及 相关属性
    /// <summary>
    /// Http上下文
    /// </summary>
    public HttpContext ContextHttp
    {
      get
      {
        return HttpContext.Current;
      }
    }

    /// <summary>
    /// 输出对象
    /// </summary>
    public HttpResponse Response
    {
      get
      {
        return ContextHttp.Response;
      }
    }

    /// <summary>
    /// 请求对象
    /// </summary>
    public HttpRequest Request
    {
      get
      {
        return ContextHttp.Request;
      }
    }

    /// <summary>
    /// Session对象
    /// </summary>
    System.Web.SessionState.HttpSessionState Session
    {
      get
      {
        return ContextHttp.Session;
      }
    }
    #endregion

    /// <summary>
    /// 获取全部请求参数，get和post的 简化版
    /// </summary>
    public static string GetRequestParameters()
    {
      string query = HttpContext.Current.Request.Url.Query;
      NameValueCollection nvc;
      string baseUrl;
      ParseUrl(query, out baseUrl, out nvc);
      List<string> list = new List<string>() { };
      foreach (var key in nvc.AllKeys)
      {
        list.Add(key + "=" + nvc[key]);
      }

      var form = HttpContext.Current.Request.Form;
      foreach (var key in form.AllKeys)
      {
        list.Add(key + "=" + form[key]);
      }
      string result = HttpContext.Current.Request.Url.AbsoluteUri + "?" + string.Join("&", list);

      return result;
    }

    /// <summary>
    /// 分析 url 字符串中的参数信息
    /// 针对get请求的
    /// </summary>
    /// <param name="url">输入的 URL</param>
    /// <param name="baseUrl">输出 URL 的基础部分</param>
    /// <param name="nvc">输出分析后得到的 (参数名,参数值) 的集合</param>
    public static void ParseUrl(string url, out string baseUrl, out NameValueCollection nvc)
    {
      if (url == null)
      {
        throw new ArgumentNullException("url");
      }
      nvc = new NameValueCollection();
      baseUrl = "";
      if (url == "")
      {
        return;
      }
      int questionMarkIndex = url.IndexOf('?');
      if (questionMarkIndex == -1)
      {
        baseUrl = url;
        return;
      }
      baseUrl = url.Substring(0, questionMarkIndex);
      if (questionMarkIndex == url.Length - 1)
      {
        return;
      }
      string ps = url.Substring(questionMarkIndex + 1);
      // 开始分析参数对 
      Regex re = new Regex(@"(^|&)?(w+)=([^&]+)(&|$)?", RegexOptions.Compiled);
      MatchCollection mc = re.Matches(ps);
      foreach (Match m in mc)
      {
        nvc.Add(m.Result("$2").ToLower(), m.Result("$3"));
      }
    }

    /// <summary>
    /// 系统编号
    /// </summary>
    public string SystemCode
    {
      get
      {
        return Request["systemCode"] ?? "Base";
      }
    }

    /// <summary>
    /// 权限编号
    /// </summary>
    public string PermissionCode
    {
      get
      {
        return Request["permissionCode"];
      }
    }

    /// <summary>
    /// 访问接口的应用传来AppKey
    /// </summary>
    public string AppKey
    {
      get
      {
        return Request["appKey"];
      }
    }

    /// <summary>
    /// 访问接口的应用传来AppSecret
    /// </summary>
    public string AppSecret
    {
      get
      {
        return Request["appSecret"];
      }
    }

    private BaseUserInfo _userInfo = null;
    /// <summary>
    /// 获取当前用户
    /// 通过接口AppKey和AppSecret获取的用户
    /// </summary>
    /// <returns></returns>
    public BaseUserInfo UserInfo
    {
      get
      {
        BaseUserInfo userInfo = null;
        BaseUserEntity userEntity = BaseUserManager.GetObjectByCodeByCache(AppKey);
        if (userEntity != null)
        {
          if (BaseServicesLicenseManager.CheckServiceByCache(userEntity.Id, AppSecret))
          {
            userInfo = new BaseUserInfo();
            userInfo.Id = userEntity.Id;
            userInfo.RealName = userEntity.RealName;
            userInfo.UserName = userEntity.UserName;
            userInfo.IPAddress = Utilities.GetIPAddress(true);
          }
        }
        return userInfo;
      }
    }

    #region 业务库连接
    /// <summary>
    /// 业务库连接
    /// </summary>
    public static IDbHelper BusinessDbHelper
    {
      get
      {
        return DbHelperFactory.GetHelper(BaseSystemInfo.BusinessDbType, BaseSystemInfo.BusinessDbConnection);
      }
    }
    #endregion

    #region 用户中心库连接
    /// <summary>
    /// 用户中心库连接
    /// </summary>
    public static IDbHelper UserCenterDbHelper
    {
      get
      {
        return DbHelperFactory.GetHelper(BaseSystemInfo.UserCenterDbType, BaseSystemInfo.UserCenterDbConnection);
      }
    }
    #endregion


  }

								 
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