/// <summary>
/// 解密函数
/// </summary>
/// <param name="Content">解密内容</param>
/// <param name="privateKey">私钥(XML格式)</param>
/// <param name="rsaDes">经RSA加密后的desKey与desIV的集合</param>
/// <param name="desKey">经RSA解密后的desKey</param>
/// <param name="desIV">经RSA解密后的desKey</param>
/// <returns>byte[]</returns>
public byte[] DecryptBytes(string Content, string privateKey, string rsaDes, out string desKey, out string desIV)
{
byte[] byteResult = null;
if (FunctionHelper.CheckValiable(rsaDes))
{
// 解密DES密钥和初始化向量
RSACrypto RC = new RSACrypto();
string des = RC.RSADecrypt(privateKey, rsaDes);
string[] desArray = FunctionHelper.SplitArray(des, '§');
desKey = desArray[0];
desIV = desArray[1];
// DES解密内容
DESCrypto DC = new DESCrypto();
byteResult = DC.DecryptBytes(Content, desKey, desIV);
}
else
{
desKey = "";
desIV = "";
byteResult = Convert.FromBase64String(Content);
}
return(byteResult);
}
/// <summary>
/// 解密函数
/// </summary>
/// <param name="Content">解密内容</param>
/// <param name="privateKey">私钥(XML格式)</param>
/// <param name="rsaDes">经RSA加密后的desKey与desIV的集合</param>
/// <param name="desKey">经RSA解密后的desKey</param>
/// <param name="desIV">经RSA解密后的desKey</param>
/// <returns>string</returns>
public string DecryptString(string Content, string privateKey, string rsaDes, out string desKey, out string desIV)
{
string strResult = "";
if (FunctionHelper.CheckValiable(rsaDes))
{
// 解密DES密钥和初始化向量
RSACrypto RC = new RSACrypto();
string des = RC.RSADecrypt(privateKey, rsaDes);
string[] desArray = FunctionHelper.SplitArray(des, '§');
desKey = desArray[0];
desIV = desArray[1];
// DES解密内容
DESCrypto DC = new DESCrypto();
strResult = DC.DecryptString(Content, desKey, desIV);
}
else
{
desKey = "";
desIV = "";
strResult = Content;
}
return(strResult);
}
/// <summary>
/// 上传文件
/// </summary>
/// <param name="upfile">获取客户段上传的文件</param>
/// <param name="limitType">允许上传的文件类型，null值为无限制</param>
/// <param name="limitSize">上传文件的大小限制(0为无限制)</param>
/// <param name="autoName">是否自动命名</param>
/// <param name="savepath">上传文件的保存路径</param>
/// <returns>string[]</returns>
public static string[] UploadFile(HttpPostedFile upfile, string limitType, int limitSize, bool autoName, string savepath)
{
string[] strResult = new string[5];
string[] extName = null;
if (!Object.Equals(limitType, null) || Object.Equals(limitType, ""))
{
extName = FunctionHelper.SplitArray(limitType, ',');
}
int fileSize = upfile.ContentLength; // 上传文件大小
string fileClientName = upfile.FileName; // 在客户端的文件全路径
string fileFullName = Path.GetFileName(fileClientName); // 上传文件名（包括后缀符）
if (fileFullName == null || fileFullName == "")
{
strResult[0] = "无文件";
strResult[1] = "";
strResult[2] = "";
strResult[3] = "";
strResult[4] = "<font color=red>失败</font>";
return(strResult);
}
else
{
string fileType = upfile.ContentType; // 上传文件的MIME类型
string[] array = FunctionHelper.SplitArray(fileFullName, '.');
string fileExt = array[array.Length - 1]; // 上传文件后缀符
int fileNameLength = fileFullName.Length - fileExt.Length - 1;
string fileName = ""; // 上传文件名（不包括后缀符）
if (autoName)
{
fileName = "_" + StringHelper.MakeName();
}
else
{
fileName = fileFullName.Substring(0, fileNameLength);
}
string savename = fileName + "." + fileExt;
strResult[0] = fileClientName;
strResult[1] = savename;
strResult[2] = fileType;
strResult[3] = fileSize.ToString();
bool EnableUpload = false;
if (limitSize <= fileSize && limitSize != 0)
{
strResult[4] = "<font color=red>失败</font>，上传文件过大";
EnableUpload = false;
}
else if (extName != null)
{
for (int i = 0; i <= extName.Length - 1; i++)
{
if (string.Compare(fileExt, extName[i].ToString(), true) == 0)
{
EnableUpload = true;
break;
}
else
{
strResult[4] = "<font color=red>失败</font>，文件类型不允许上传";
EnableUpload = false;
}
}
}
else
{
EnableUpload = true;
}
// 符合上传条件，开始执行上传文件操作。
if (EnableUpload)
{
try
{
string savefile = savepath + savename;
FileHelper.WriteFile(savefile, "临时文件");
upfile.SaveAs(savefile);
strResult[4] = "成功";
//strResult[4] = "成功<!--" + FunctionHelper.GetRealPath(savepath) + savename + "-->";
}
catch (Exception exc)
{
strResult[4] = "<font color=red>失败</font><!-- " + exc.Message + " -->";
}
}
return(strResult);
}
}
