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/*
* Copyright (c) 2015-2016 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
#pragma once
#include <string>
#include <vector>
#define SECURITY_WIN32
#include <Windows.h>
#include <Sspi.h>
#include <Swiften/Base/API.h>
#include <Swiften/Base/SafeByteArray.h>
#include <Swiften/SASL/ClientAuthenticator.h>
namespace Swift {
class SWIFTEN_API WindowsGSSAPIClientAuthenticator : public ClientAuthenticator {
public:
WindowsGSSAPIClientAuthenticator(const std::string& hostname, const std::string& domainname, int port);
virtual ~WindowsGSSAPIClientAuthenticator();
virtual boost::optional<SafeByteArray> getResponse() const;
virtual bool setChallenge(const boost::optional<std::vector<unsigned char> >&);
/**
* Returns whether the authenticator has the complete
* security context. It could be true before any
* message exchanges with the server or after some
* messages have been exchanged.
*
* @return True if security context is complete.
*/
bool isCompleteContext() {
return haveCompleteContext_;
}
/**
* Retrieves the user name associated with the
* security context. It will only be set when
* isCompleteContext() returns true.
*
* @return User name in the form "EXAMPLE.COM\user".
*/
const std::string& getUserName() {
return userName_;
}
/**
* Retrieves the client part of the user name
* associated with the security context. It will only
* be set when isCompleteContext() returns true.
*
* @return Client name in the form "user" when the user
* name is "EXAMPLE.COM\user".
*/
const std::string& getClientName() {
return clientName_;
}
/**
* Retrieves the server name associated with the
* security context. It will only be set when
* isCompleteContext() returns true.
*
* @return Server name in the form "EXAMPLE.COM".
*/
const std::string& getServerName() {
return serverName_;
}
/**
* Returns whether an error has occurred at any point,
* including in the constructor.
*
* @return True if an error has occured.
*/
bool isError();
/**
* Returns error details if isError() returns true.
* May be empty if there are no details to be provided
* for the error.
*
* @return Error details.
*/
boost::shared_ptr<boost::system::error_code> getErrorCode() {
return errorCode_;
}
private:
void buildSecurityContext(const boost::optional<ByteArray>& inputToken);
private:
enum Step {
BuildingSecurityContext,
SecurityLayerNegotiation,
ServerAuthenticated
} step_;
bool error_;
boost::shared_ptr<boost::system::error_code> errorCode_;
std::string servicePrincipalNameString_;
bool haveCredentialsHandle_;
bool haveContextHandle_;
bool haveCompleteContext_;
CredHandle credentialsHandle_;
CtxtHandle contextHandle_;
SecPkgContext_Sizes sizes_;
SecPkgContext_StreamSizes streamSizes_;
std::string userName_;
std::string clientName_;
std::string serverName_;
SafeByteArray response_;
};
}
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Swift