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File: [Pegasus] / pegasus / src / Pegasus / Server / HTTPAuthenticatorDelegator.cpp
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Revision: 1.31.2.3, Sun Apr 25 19:41:30 2004 UTC (20 years, 2 months ago) by h.sterling Branch: RELEASE_2_3_2-branch CVS Tags: RELEASE_2_3_2-testfreeze, RELEASE_2_3_2-releasesnapshot, RELEASE_2_3_2-branch-freeze Changes since 1.31.2.2: +10 -3 lines PEP#: 165 BRANCH: RELEASE_2_3_2-branch TITLE: SSL client verification DESCRIPTION #ifdef'ing bugzilla 1319/PEP165 code with PEGASUS_232_CLIENT_VERIFICATION flag |
//%2003//////////////////////////////////////////////////////////////////////// // // Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Development // Company, L. P., IBM Corp., The Open Group, Tivoli Systems. // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L. P.; // IBM Corp.; EMC Corporation, The Open Group. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to // deal in the Software without restriction, including without limitation the // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or // sell copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // //============================================================================== // // Author: Nag Boranna, Hewlett-Packard Company(nagaraja_boranna@hp.com) // // Modified By: Dave Rosckes (rosckes@us.ibm.com) // Sushma Fernandes (sushma_fernandes@hp.com) // Heather Sterling, IBM (hsterl@us.ibm.com) // //%///////////////////////////////////////////////////////////////////////////// #include <Pegasus/Common/Constants.h> #include <Pegasus/Common/HTTPAcceptor.h> #include <Pegasus/Common/HTTPConnection.h> #include <Pegasus/Common/HTTPMessage.h> #include <Pegasus/Common/XmlWriter.h> #include <Pegasus/Config/ConfigManager.h> #include "HTTPAuthenticatorDelegator.h" #ifdef PEGASUS_KERBEROS_AUTHENTICATION #include <Pegasus/Common/CIMKerberosSecurityAssociation.h> #endif PEGASUS_USING_STD; PEGASUS_NAMESPACE_BEGIN HTTPAuthenticatorDelegator::HTTPAuthenticatorDelegator( Uint32 operationMessageQueueId, Uint32 exportMessageQueueId) : Base(PEGASUS_QUEUENAME_HTTPAUTHDELEGATOR, MessageQueue::getNextQueueId()), _operationMessageQueueId(operationMessageQueueId), _exportMessageQueueId(exportMessageQueueId) { PEG_METHOD_ENTER(TRC_HTTP, "HTTPAuthenticatorDelegator::HTTPAuthenticatorDelegator"); _authenticationManager = new AuthenticationManager(); PEG_METHOD_EXIT(); } HTTPAuthenticatorDelegator::~HTTPAuthenticatorDelegator() { PEG_METHOD_ENTER(TRC_HTTP, "HTTPAuthenticatorDelegator::~HTTPAuthenticatorDelegator"); delete _authenticationManager; PEG_METHOD_EXIT(); } void HTTPAuthenticatorDelegator::enqueue(Message* message) throw(IPCException) { handleEnqueue(message); } void HTTPAuthenticatorDelegator::_sendResponse( Uint32 queueId, Array<Sint8>& message) { PEG_METHOD_ENTER(TRC_HTTP, "HTTPAuthenticatorDelegator::_sendResponse"); MessageQueue* queue = MessageQueue::lookup(queueId); if (queue) { HTTPMessage* httpMessage = new HTTPMessage(message); httpMessage->dest = queue->getQueueId(); queue->enqueue(httpMessage); } PEG_METHOD_EXIT(); } #ifdef PEGASUS_KERBEROS_AUTHENTICATION void HTTPAuthenticatorDelegator::_sendSuccess( Uint32 queueId, const String& authResponse) { PEG_METHOD_ENTER(TRC_HTTP, "HTTPAuthenticatorDelegator::_sendSuccess"); // // build OK (200) response message // Array<Sint8> message; XmlWriter::appendOKResponseHeader(message, authResponse); _sendResponse(queueId, message); PEG_METHOD_EXIT(); } #endif void HTTPAuthenticatorDelegator::_sendChallenge( Uint32 queueId, const String& authResponse) { PEG_METHOD_ENTER(TRC_HTTP, "HTTPAuthenticatorDelegator::_sendChallenge"); // // build unauthorized (401) response message // Array<Sint8> message; XmlWriter::appendUnauthorizedResponseHeader(message, authResponse); _sendResponse(queueId, message); PEG_METHOD_EXIT(); } void HTTPAuthenticatorDelegator::_sendHttpError( Uint32 queueId, const String& status, const String& cimError, const String& pegasusError) { PEG_METHOD_ENTER(TRC_HTTP, "HTTPAuthenticatorDelegator::_sendHttpError"); // // build error response message // Array<Sint8> message; message = XmlWriter::formatHttpErrorRspMessage( status, cimError, pegasusError); _sendResponse(queueId, message); PEG_METHOD_EXIT(); } void HTTPAuthenticatorDelegator::handleEnqueue(Message *message) { PEG_METHOD_ENTER(TRC_HTTP, "HTTPAuthenticatorDelegator::handleEnqueue"); if (!message) { PEG_METHOD_EXIT(); return; } // Flag indicating whether the message should be deleted after handling. // This should be set to false by handleHTTPMessage when the message is // passed as is to another queue. Boolean deleteMessage = true; if (message->getType() == HTTP_MESSAGE) { handleHTTPMessage((HTTPMessage*)message, deleteMessage); } if (deleteMessage) { delete message; } PEG_METHOD_EXIT(); } void HTTPAuthenticatorDelegator::handleEnqueue() { PEG_METHOD_ENTER(TRC_HTTP, "HTTPAuthenticatorDelegator::handleEnqueue"); Message* message = dequeue(); if(message) handleEnqueue(message); PEG_METHOD_EXIT(); } void HTTPAuthenticatorDelegator::handleHTTPMessage( HTTPMessage* httpMessage, Boolean & deleteMessage) { PEG_METHOD_ENTER(TRC_HTTP, "HTTPAuthenticatorDelegator::handleHTTPMessage"); #ifdef PEGASUS_USE_232_CLIENT_VERIFICATION // client may have already authenticated via SSL Boolean authenticated = httpMessage->authInfo->getAuthStatus(); #else Boolean authenticated = false; #endif deleteMessage = true; // ATTN-RK-P3-20020408: This check probably shouldn't be necessary, but // we're getting an empty message when the client closes the connection if (httpMessage->message.size() == 0) { // The message is empty; just drop it PEG_METHOD_EXIT(); return; } // // get the configured authentication flag // ConfigManager* configManager = ConfigManager::getInstance(); Boolean enableAuthentication = false; if (String::equal( configManager->getCurrentValue("enableAuthentication"), "true")) { enableAuthentication = true; } // // Save queueId: // Uint32 queueId = httpMessage->queueId; // // Parse the HTTP message: // String startLine; Array<HTTPHeader> headers; Uint32 contentLength; httpMessage->parse(startLine, headers, contentLength); // // Parse the request line: // String methodName; String requestUri; String httpVersion; HttpMethod httpMethod = HTTP_METHOD__POST; HTTPMessage::parseRequestLine( startLine, methodName, requestUri, httpVersion); // // Set HTTP method for the request // if (methodName == "M-POST") { httpMethod = HTTP_METHOD_M_POST; } if (methodName != "M-POST" && methodName != "POST") { // Only POST and M-POST are implemented by this server _sendHttpError(queueId, HTTP_STATUS_NOTIMPLEMENTED); } else if ((httpMethod == HTTP_METHOD_M_POST) && (httpVersion == "HTTP/1.0")) { // // M-POST method is not valid with version 1.0 // _sendHttpError(queueId, HTTP_STATUS_BADREQUEST); } else { // // Process M-POST and POST messages: // Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, "HTTPAuthenticatorDelegator - M-POST/POST processing start"); httpMessage->message.append('\0'); #ifdef PEGASUS_USE_232_CLIENT_VERIFICATION if (!authenticated) { #endif // // Search for Authorization header: // String authorization = String::EMPTY; if ( HTTPMessage::lookupHeader( headers, "PegasusAuthorization", authorization, false) && enableAuthentication ) { try { // // Do pegasus/local authentication // authenticated = _authenticationManager->performPegasusAuthentication( authorization, httpMessage->authInfo); if (!authenticated) { String authChallenge = String::EMPTY; String authResp = String::EMPTY; authResp = _authenticationManager->getPegasusAuthResponseHeader( authorization, httpMessage->authInfo); if (!String::equal(authResp, String::EMPTY)) { _sendChallenge(queueId, authResp); } else { _sendHttpError(queueId, HTTP_STATUS_BADREQUEST, String::EMPTY, "Authorization header error"); } PEG_METHOD_EXIT(); return; } } catch (CannotOpenFile &cof) { _sendHttpError(queueId, HTTP_STATUS_INTERNALSERVERERROR); PEG_METHOD_EXIT(); return; } } #ifdef PEGASUS_KERBEROS_AUTHENTICATION // The presence of a Security Association indicates that Kerberos is being used // Reset flag for subsequent calls to indicate that no Authorization // record was sent. If one was sent the flag will be appropriately reset later. // The sa is maintained while the connection is active. CIMKerberosSecurityAssociation *sa = httpMessage->authInfo->getSecurityAssociation(); if (sa) { sa->setClientSentAuthorization(false); } #endif if ( HTTPMessage::lookupHeader( headers, "Authorization", authorization, false) && enableAuthentication ) { // // Do http authentication if not authenticated already // if (!authenticated) { authenticated = _authenticationManager->performHttpAuthentication( authorization, httpMessage->authInfo); if (!authenticated) { //ATTN: the number of challenges get sent for a // request on a connection can be pre-set. #ifdef PEGASUS_KERBEROS_AUTHENTICATION // Kerberos authentication needs access to the AuthenticationInfo // object for this session in order to set up the reference to the // CIMKerberosSecurityAssociation object for this session. String authResp = _authenticationManager->getHttpAuthResponseHeader(httpMessage->authInfo); #else String authResp = _authenticationManager->getHttpAuthResponseHeader(); #endif if (!String::equal(authResp, String::EMPTY)) { _sendChallenge(queueId, authResp); } else { _sendHttpError(queueId, HTTP_STATUS_BADREQUEST, String::EMPTY, "Authorization header error"); } PEG_METHOD_EXIT(); return; } } // first not authenticated check } // "Authorization" header check #ifdef PEGASUS_KERBEROS_AUTHENTICATION // The pointer to the sa is created in the authenticator so we need to also // assign it here. sa = httpMessage->authInfo->getSecurityAssociation(); if (sa) { Uint32 sendAction = 0; // 0 - continue, 1 = send success, 2 = send response // The following is processing to unwrap (decrypt) the request from the // client when using kerberos authentication. sa->unwrapRequestMessage(httpMessage->message, contentLength, authenticated, sendAction); if (sendAction) // send success or send response { if (httpMessage->message.size() == 0) { _sendHttpError(queueId, HTTP_STATUS_BADREQUEST, String::EMPTY, "Authorization header error"); } else { if (sendAction == 1) // Send success { _sendSuccess(queueId, String(httpMessage->message.getData(), httpMessage->message.size())); } if (sendAction == 2) // Send response { _sendResponse(queueId, httpMessage->message); } } PEG_METHOD_EXIT(); return; } } #endif #ifdef PEGASUS_USE_232_CLIENT_VERIFICATION } //end BIG if(!authenticated) #endif if ( authenticated || !enableAuthentication ) { // // Search for "CIMOperation" header: // String cimOperation; if (HTTPMessage::lookupHeader( headers, "CIMOperation", cimOperation, true)) { Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, "HTTPAuthenticatorDelegator - CIMOperation: $0 ",cimOperation); MessageQueue* queue = MessageQueue::lookup(_operationMessageQueueId); if (queue) { httpMessage->dest = queue->getQueueId(); try { queue->enqueue(httpMessage); } catch(exception & e) { delete httpMessage; _sendHttpError(queueId, HTTP_STATUS_REQUEST_TOO_LARGE); PEG_METHOD_EXIT(); deleteMessage = false; return; } deleteMessage = false; } } else if (HTTPMessage::lookupHeader( headers, "CIMExport", cimOperation, true)) { Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, "HTTPAuthenticatorDelegator - CIMExport: $0 ",cimOperation); MessageQueue* queue = MessageQueue::lookup(_exportMessageQueueId); if (queue) { httpMessage->dest = queue->getQueueId(); queue->enqueue(httpMessage); deleteMessage = false; } } else { // We don't recognize this request message type // The Specification for CIM Operations over HTTP reads: // // 3.3.4. CIMOperation // // If a CIM Server receives a CIM Operation request without // this [CIMOperation] header, it MUST NOT process it as if // it were a CIM Operation Request. The status code // returned by the CIM Server in response to such a request // is outside of the scope of this specification. // // 3.3.5. CIMExport // // If a CIM Listener receives a CIM Export request without // this [CIMExport] header, it MUST NOT process it. The // status code returned by the CIM Listener in response to // such a request is outside of the scope of this // specification. // // The author has chosen to send a 400 Bad Request error, but // without the CIMError header since this request must not be // processed as a CIM request. _sendHttpError(queueId, HTTP_STATUS_BADREQUEST); PEG_METHOD_EXIT(); return; } // bad request } // authenticated and enableAuthentication check else { // client not authenticated; send challenge #ifdef PEGASUS_KERBEROS_AUTHENTICATION String authResp = _authenticationManager->getHttpAuthResponseHeader(httpMessage->authInfo); #else String authResp = _authenticationManager->getHttpAuthResponseHeader(); #endif if (!String::equal(authResp, String::EMPTY)) { _sendChallenge(queueId, authResp); } else { _sendHttpError(queueId, HTTP_STATUS_BADREQUEST, String::EMPTY, "Authorization header error"); } } } // M-POST and POST processing PEG_METHOD_EXIT(); } PEGASUS_NAMESPACE_END
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