internal static string SendMessageLicense(string xmlMessage, string decryptedsimkey)
{
string responseStr = "";
Message xmlResponseMessage;
// get server response
responseStr = CommunicationManager.SendXmlMessage(xmlMessage, GlobalResources.LicenseAnonymousUrl);
if (string.IsNullOrEmpty(responseStr))
{
return(CommunicationManager.Deny(GlobalResources.ServerFailedMessage));
}
if (CommunicationManager.IsDenied(responseStr))
{
return(responseStr);
}
CryptographyManager objQueryTalkCryptography = new CryptographyManager();
responseStr = objQueryTalkCryptography.DecryptSim(responseStr, CryptoContext.ComunicationKey);
xmlResponseMessage = CommunicationManager.ReadXML(responseStr, decryptedsimkey, true);
if (!IsValidResponseNoUser(xmlResponseMessage as ResponseMessage))
{
return(CommunicationManager.Deny(GlobalResources.ServerFailedMessage));
}
return((xmlResponseMessage as ResponseMessage).Response);
}
private static string RegisterAnonymousEmail(string xmlMessage, string decryptedsimkey)
{
var responseStr = SendXmlMessage(xmlMessage, GlobalResources.RegisterAnonymousEmailUrl);
if (string.IsNullOrEmpty(responseStr))
{
return(Deny(GlobalResources.ServerFailedMessage));
}
if (IsDenied(responseStr))
{
return(responseStr);
}
CryptographyManager objQueryTalkCryptography = new CryptographyManager();
responseStr = objQueryTalkCryptography.DecryptSim(responseStr, CryptoContext.ComunicationKey);
var xmlResponseMessage = ReadXML(responseStr, decryptedsimkey, true);
//Los mensajes de los servicios de licenciamiento se verifica que no se alterara ninguno de los datos originalmente enviados
//y que hacen unica y universal la comunicación entre el usuario/machine/servidor
if (!IsValidResponse(xmlResponseMessage as ResponseMessage))
{
return(Deny(GlobalResources.ServerFailedMessage));
}
return((xmlResponseMessage as ResponseMessage).Response);
}
private static string SendMessageLicense(string xmlMessage, string decryptedsimkey, string user, string password)
{
string responseStr = "";
Message xmlResponseMessage;
responseStr = SendXmlMessage(xmlMessage, GlobalResources.LicenseUrl);
if (string.IsNullOrEmpty(responseStr))
{
return(Deny(GlobalResources.ServerFailedMessage));
}
if (IsDenied(responseStr))
{
return(responseStr);
}
//Los mensajes de los servicios de licenciamiento se encriptan doblemente en el servidor con el ComunicationKey
CryptographyManager objQueryTalkCryptography = new CryptographyManager();
responseStr = objQueryTalkCryptography.DecryptSim(responseStr, CryptoContext.ComunicationKey);
xmlResponseMessage = ReadXML(responseStr, decryptedsimkey, true);
//Los mensajes de los servicios de licenciamiento se verifica que no se alterara ninguno de los datos originalmente enviados
//y que hacen unica y universal la comunicación entre el usuario/machine/servidor
if (!IsValidResponse(xmlResponseMessage as ResponseMessage, user, password))
{
return(Deny(GlobalResources.ServerFailedMessage));
}
return((xmlResponseMessage as ResponseMessage).Response);
}
private List <string> GetKeyCredentials()
{
RegistryKey keyCredential = GetCredentialRoute();
string credential1 = (string)keyCredential.GetValue(GlobalResources.Key1);
string credential2 = (string)keyCredential.GetValue(GlobalResources.Key2);
string credential3 = (string)keyCredential.GetValue(GlobalResources.Key3);
if (credential1 != null && credential2 != null && credential3 != null)
{
CryptographyManager objQueryTalkCryptography = new CryptographyManager();
//string decryptedsimkey = objQueryTalkCryptography.DecryptAsim(CryptoContext.CryptedSimKey, CryptoContext.RSAPrivateKey);
string user = objQueryTalkCryptography.DecryptSim(credential1, CryptoContext.ComunicationKey);
string password = objQueryTalkCryptography.DecryptSim(credential2, CryptoContext.ComunicationKey);
string rememberMe = objQueryTalkCryptography.DecryptSim(credential3, CryptoContext.ComunicationKey);
List <string> Keys = new List <string>()
{
user, password, rememberMe
};
return(Keys);
}
else
{
return(new List <string> {
"", "", ""
});
}
}
internal void SaveCredencials(string user, string password, bool rememberMe)
{
RegistryKey key = GetCredentialRoute();
CryptographyManager objQueryTalkCryptography = new CryptographyManager();
//string decryptedsimkey = objQueryTalkCryptography.DecryptAsim(CryptoContext.CryptedSimKey, CryptoContext.RSAPrivateKey);
key.SetValue(GlobalResources.Key1, objQueryTalkCryptography.EncryptSim(user, CryptoContext.ComunicationKey), RegistryValueKind.String);
key.SetValue(GlobalResources.Key2, objQueryTalkCryptography.EncryptSim(password, CryptoContext.ComunicationKey), RegistryValueKind.String);
key.SetValue(GlobalResources.Key3, objQueryTalkCryptography.EncryptSim(rememberMe.ToString(), CryptoContext.ComunicationKey), RegistryValueKind.String);
}
// not implemented:
//internal static void PullMapperResponeAsync(IAsyncResult asyncResult)
//{
// PlayResponeAsync(asyncResult, GlobalResources.MapperPackage + GlobalResources.MapperPackageDefaultExtension);
//}
private static void PlayResponeAsync(IAsyncResult asyncResult, string fileName)
{
long total = 0;
int received = 0;
HttpWebRequest webRequest = (HttpWebRequest)asyncResult.AsyncState;
CryptographyManager objQueryTalkCryptography = new CryptographyManager();
string decryptedsimkey = objQueryTalkCryptography.DecryptAsim(CryptoContext.CryptedSimKey, CryptoContext.RSAPrivateKey);
try
{
using (HttpWebResponse webResponse = (HttpWebResponse)webRequest.EndGetResponse(asyncResult))
{
byte[] buffer = new byte[1024];
FileStream fileStream = File.OpenWrite(fileName);
using (Stream input = webResponse.GetResponseStream())
{
total = input.Length;
int size = input.Read(buffer, 0, buffer.Length);
while (size > 0)
{
fileStream.Write(buffer, 0, size);
received += size;
size = input.Read(buffer, 0, buffer.Length);
}
}
fileStream.Flush();
fileStream.Close();
}
}
catch (Exception ex)
{
Exception ex1 = new Exception(GlobalResources.PullFailedMessage, ex);
}
}
// prepara el mensaje XML criptado
internal static string PrepareCommand(string communicationID, string command, string user, string password, string email,
out string decryptedSimKey, out CryptographyManager cryptographyManager)
{
Message message = new Message();
message.CommunicationID = communicationID;
message.Command = command;
message.CK = CryptoContext.ComunicationKey;
message.User = user;
message.Password = password;
message.MK = MachineManager.MachineKey;
message.ComputerName = MachineManager.ComputerName;
message.Manufacturer = MachineManager.ComputerManufacturer;
message.Model = MachineManager.Model;
message.Processor = MachineManager.Procesor;
message.Email = email;
cryptographyManager = new CryptographyManager();
decryptedSimKey = cryptographyManager.DecryptAsim(CryptoContext.CryptedSimKey, CryptoContext.RSAPrivateKey);
return(CreateXmlMessage(message, decryptedSimKey));
}
internal static Message ReadXML(string xmlString, Func <string, string> simKeyProvider, bool response)
{
Message message = response ? new ResponseMessage() : new Message();
CryptographyManager objCrypto = new CryptographyManager();
XmlNode node;
XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlString);
node = doc.DocumentElement.SelectSingleNode("/message/block0/block0value1");
message.CommunicationID = node.InnerText;
// get symetric key
var simKey = simKeyProvider(message.CommunicationID);
node = doc.DocumentElement.SelectSingleNode("/message/block1/block1value1");
message.Command = objCrypto.DecryptSim(node.InnerText, simKey);
if (message.Command != Commands.VIEWLICENSE)
{
node = doc.DocumentElement.SelectSingleNode("/message/block2/block2value1");
message.CK = objCrypto.DecryptSim(node.InnerText, simKey);
}
node = doc.DocumentElement.SelectSingleNode("/message/block3/block3value1");
message.User = objCrypto.DecryptSim(node.InnerText, simKey);
node = doc.DocumentElement.SelectSingleNode("/message/block3/block3value2");
message.Password = objCrypto.DecryptSim(node.InnerText, simKey);
//Información necesaria solo para los servicios de licenciamiento
if (message.Command == Commands.AUTHENTICATE ||
message.Command == Commands.AUTHENTICATE_ANONYMOUS ||
message.Command == Commands.REMOVE ||
message.Command == Commands.REGISTEREMAIL)
{
node = doc.DocumentElement.SelectSingleNode("/message/block4/block4value1");
message.MK = objCrypto.DecryptSim(node.InnerText, simKey);
node = doc.DocumentElement.SelectSingleNode("/message/block4/block4value2");
message.ComputerName = objCrypto.DecryptSim(node.InnerText, simKey);
node = doc.DocumentElement.SelectSingleNode("/message/block4/block4value3");
message.Manufacturer = objCrypto.DecryptSim(node.InnerText, simKey);
node = doc.DocumentElement.SelectSingleNode("/message/block4/block4value4");
message.Model = objCrypto.DecryptSim(node.InnerText, simKey);
node = doc.DocumentElement.SelectSingleNode("/message/block4/block4value5");
message.Processor = objCrypto.DecryptSim(node.InnerText, simKey);
}
//Información usada para los responses desde el servidor
if (response)
{
node = doc.DocumentElement.SelectSingleNode("/message/block5/block5value1");
(message as ResponseMessage).Response = objCrypto.DecryptSim(node.InnerText, simKey);
}
if (message.Command == Commands.REGISTEREMAIL)
{
node = doc.DocumentElement.SelectSingleNode("/message/block6/block6value1");
message.Email = objCrypto.DecryptSim(node.InnerText, simKey);
}
return(message);
}
internal static string CreateXmlMessage(Message message, string simKey)
{
string xmlContent = "";
CryptographyManager objQueryTalkCryptography = new CryptographyManager();
XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
StringWriter writer = new StringWriter();
using (XmlWriter xmlWriter = XmlWriter.Create(writer, settings))
{
xmlWriter.WriteStartElement("message");
//Guid
xmlWriter.WriteStartElement("block0");
//GuidText
xmlWriter.WriteElementString("block0value1", message.CommunicationID);
xmlWriter.WriteEndElement();
//Command
xmlWriter.WriteStartElement("block1");
//CommandText
xmlWriter.WriteElementString("block1value1", objQueryTalkCryptography.EncryptSim(message.Command, simKey));
xmlWriter.WriteEndElement();
if (message.Command != Commands.VIEWLICENSE)
{
//CK
xmlWriter.WriteStartElement("block2");
//CKText
xmlWriter.WriteElementString("block2value1", objQueryTalkCryptography.EncryptSim(message.CK, simKey));
xmlWriter.WriteEndElement();
}
//Credentials
xmlWriter.WriteStartElement("block3");
//User
xmlWriter.WriteElementString("block3value1", objQueryTalkCryptography.EncryptSim(message.User, simKey));
//Password
xmlWriter.WriteElementString("block3value2", objQueryTalkCryptography.EncryptSim(message.Password, simKey));
xmlWriter.WriteEndElement();
//Información necesaria solo para los servicios de licenciamiento
if (message.Command == Commands.AUTHENTICATE ||
message.Command == Commands.AUTHENTICATE_ANONYMOUS ||
message.Command == Commands.REMOVE ||
message.Command == Commands.REGISTEREMAIL)
{
//ComputerInfo
xmlWriter.WriteStartElement("block4");
//MK
xmlWriter.WriteElementString("block4value1", objQueryTalkCryptography.EncryptSim(message.MK, simKey));
//ComputerName
xmlWriter.WriteElementString("block4value2", objQueryTalkCryptography.EncryptSim(message.ComputerName, simKey));
//Manufacturer
xmlWriter.WriteElementString("block4value3", objQueryTalkCryptography.EncryptSim(message.Manufacturer, simKey));
//Model
xmlWriter.WriteElementString("block4value4", objQueryTalkCryptography.EncryptSim(message.Model, simKey));
//Processor
xmlWriter.WriteElementString("block4value5", objQueryTalkCryptography.EncryptSim(message.Processor, simKey));
xmlWriter.WriteEndElement();
}
//Información usada para los responses desde el servidor
if (message is ResponseMessage)
{
//Response
xmlWriter.WriteStartElement("block5");
//CommandText
xmlWriter.WriteElementString("block5value1", objQueryTalkCryptography.EncryptSim((message as ResponseMessage).Response, simKey));
xmlWriter.WriteEndElement();
xmlWriter.WriteEndDocument();
}
if (message.Command == Commands.REGISTEREMAIL)
{
//CK
xmlWriter.WriteStartElement("block6");
//CKText
xmlWriter.WriteElementString("block6value1", objQueryTalkCryptography.EncryptSim(message.Email, simKey));
xmlWriter.WriteEndElement();
}
writer.Flush();
}
xmlContent = writer.ToString();
return(xmlContent);
}