public static string GetRequestID(HttpContext context)
{
if (context.Items.ContainsKey(RequestIDKey))
{
return(context.Items[RequestIDKey].ToString());
}
WebParams webParams = new WebParams(context.Request);
if (webParams.ContainsKey(RequestIDKey))
{
return(webParams[RequestIDKey]);
}
if (context.Request.Headers.ContainsKey(RequestIDKey))
{
return(context.Request.Headers[RequestIDKey].ToString());
}
string requestID = Guid.NewGuid().ToString("N");
context.Items.Add(RequestIDKey, requestID);
return(requestID);
}
public Task CreateValueProviderAsync(ValueProviderFactoryContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var request = context.ActionContext.HttpContext.Request;
WebParams webParams = new WebParams(request);
string encryptKey = "__encryptdata";
string encryptData = request.Query.ContainsKey(encryptKey) ? request.Query[encryptKey].ToString() : string.Empty;
if (encryptData.IsNullOrEmpty() && request.HasFormContentType)
{
encryptData = request.Form[encryptKey];
}
bool isEncryptDatas = webParams.ContainsKey(encryptKey);
bool isDecryptSucceed = false;
Exception decryptException = null;
IDictionary <string, string> dicDecryptDatas = new Dictionary <string, string>();
if (encryptData.IsNotNullOrEmpty())
{
try
{
//生成密钥
//string rsaKey = RSAEncrypt.GenerateKey();
string rsaKey = IFConfigReader.RSAPrivateKey;
//通过密钥创建对象
RSAEncrypt privateRSA = new RSAEncrypt(rsaKey);
//解密
string decryptData = privateRSA.Decrypt(encryptData);
//导出公钥
//string publicKey = privateRSA.ExportParameters(false);
//通过公钥加密
//RSAEncrypt publicRSA = new RSAEncrypt(publicKey);
foreach (var item in decryptData.Split('&'))
{
string[] values = item.Split('=');
dicDecryptDatas.Add(values[0], values[1]);
}
isDecryptSucceed = true;
}
catch (Exception ex)
{
decryptException = ex;
isDecryptSucceed = false;
}
if (dicDecryptDatas.Count() > 0)
{
AddResultsToHttpContext(context, isEncryptDatas, isDecryptSucceed, decryptException, dicDecryptDatas);
return(AddValueProviderAsync(context, dicDecryptDatas));
}
}
AddResultsToHttpContext(context, isEncryptDatas, isDecryptSucceed, decryptException, dicDecryptDatas);
return(TaskCache.CompletedTask);
}
public override void OnActionExecuting(ActionExecutingContext context)
{
ip = context.HttpContext.Request.Host.Host;
//将当前日志组件传递到其他中间件
this.HttpContext.Items.Add("__requestLogger", Logger);
HttpRequest request = context.HttpContext.Request;
WebParams webParams = new WebParams(request);
string path = request.Path.Value.ToLower();
if (!path.Contains("/test/") && !WhitelistActions.Contains(path))
{
#region 签名验证
if (context.Result == null)
{
string signKey = IFConfigReader.SignKey;
NameValueCollection param = new NameValueCollection();
foreach (var webParam in webParams)
{
param.Add(webParam.Key, webParam.Value.ToString());
}
string uriString = $"{request.Scheme}://{request.Host}{request.Path}";
Uri uri = new Uri(uriString);
if (!UrlValidator.ValidatorSign(uri, param, signKey))
{
APIReturn apiResult = new APIReturn(-93, "签名验证失败");
context.Result = this.FuncResult(apiResult);
}
}
#endregion
#region 时间戳验证
string stampKey = "timestamp";
if (context.Result == null && webParams.ContainsKey(stampKey))
{
long timeStamp = webParams[stampKey].ToLong();
DateTime urlTime = DateTimeHelper.StampToDateTime(timeStamp);
if (urlTime.AddMinutes(3) < DateTime.Now)
{
APIReturn apiResult = new APIReturn(-92, "URL已失效");
context.Result = this.FuncResult(apiResult);
}
}
#endregion
#region 加密验证
/* 暂不启用加密验证
*
* if (context.Result == null)
* {
* if (!this.ReqData.IsEncryptDatas || !this.ReqData.IsDecryptSucceed)
* {
* APIReturn apiResult = new APIReturn(-91, "解密参数失败" + (this.ReqData.DecryptException != null ? $"({this.ReqData.DecryptException.Message})" : string.Empty));
* context.Result = this.FuncResult(apiResult);
* }
* }
*
*/
#endregion
}
}