/* * Copyright (c) 2015 Isode Limited. * All rights reserved. * See the COPYING file for more information. */ #include <Swiften/SASL/WindowsServicePrincipalName.h> #include <vector> #include <Ntdsapi.h> #include <Swiften/Base/ByteArray.h> #include <Swiften/Base/Log.h> #include <Swiften/Base/String.h> namespace Swift { WindowsServicePrincipalName::WindowsServicePrincipalName(const std::string& serviceName) : serviceClass_(L"xmpp"), instancePort_(0) { serviceName_ = convertStringToWString(serviceName); } WindowsServicePrincipalName::~WindowsServicePrincipalName() { } void WindowsServicePrincipalName::setServiceClass(const std::string& serviceClass) { serviceClass_ = convertStringToWString(serviceClass); } void WindowsServicePrincipalName::setInstanceName(const std::string& instanceName) { instanceName_ = convertStringToWString(instanceName); } void WindowsServicePrincipalName::setReferrer(const std::string& referrer) { referrer_ = convertStringToWString(referrer); } std::string WindowsServicePrincipalName::toString() { DWORD length = 512; DWORD status = ERROR_BUFFER_OVERFLOW; bool firstCall = true; std::string str; while (status == ERROR_BUFFER_OVERFLOW) { std::vector<wchar_t> value(length); /* length after this call will contain the required length if current length is not enough - so the next call should succeed */ status = dsMakeSpn(&length, vecptr(value)); if (status == ERROR_SUCCESS) { str = convertWStringToString(std::wstring(vecptr(value), length-1 /* trailing 0 character */)); break; } if ((firstCall == false) || (status != ERROR_BUFFER_OVERFLOW)) { std::stringstream errorString; boost::system::error_code errorCode(status, boost::system::system_category()); errorString << "Error creating Service Principal Name: status: 0x" << std::hex << status << ": " << errorCode.message(); /* Any other error will be a programming error */ throw std::runtime_error(errorString.str()); } firstCall = false; } SWIFT_LOG(debug) << "SPN: " << str << std::endl; return str; } DWORD WindowsServicePrincipalName::dsMakeSpn(DWORD* length, wchar_t* value) { DWORD status; #ifdef UNICODE SWIFT_LOG(debug) << "UNICODE is defined" << std::endl; #else SWIFT_LOG(debug) << "UNICODE is not defined" << std::endl; #endif SWIFT_LOG(debug) << "serviceClass_: " << convertWStringToString(serviceClass_.c_str()) << std::endl; SWIFT_LOG(debug) << "serviceName_: " << convertWStringToString(serviceName_.c_str()) << std::endl; SWIFT_LOG(debug) << "instanceName_: " << convertWStringToString(instanceName_.c_str()) << std::endl; SWIFT_LOG(debug) << "referrer_: " << convertWStringToString(referrer_.c_str()) << std::endl; SWIFT_LOG(debug) << "instancePort_: " << instancePort_ << std::endl; SWIFT_LOG(debug) << "length: " << *length << std::endl; /* Call the Unicode function because that is recommended: https://msdn.microsoft.com/en-us/library/windows/desktop/ff381407%28v=vs.85%29.aspx */ status = DsMakeSpnW( serviceClass_.c_str(), serviceName_.c_str(), instanceName_.empty() ? NULL : instanceName_.c_str(), instancePort_, referrer_.empty() ? NULL : referrer_.c_str(), length, value); if (status != ERROR_SUCCESS) { boost::system::error_code errorCode(status, boost::system::system_category()); SWIFT_LOG(debug) << std::hex << "status: 0x" << status << ": " << errorCode.message() << std::endl; } return status; } }