[u/mrichter/AliRoot.git] / HLT / BASE / AliHLTHOMERProxyHandler.cxx

//-*- Mode: C++ -*-
// $Id: AliHLTHOMERProxyHandler.cxx  $
//**************************************************************************
//* This file is property of and copyright by the ALICE HLT Project        * 
//* ALICE Experiment at CERN, All rights reserved.                         *
//*                                                                        *
//* Primary Authors: Jochen Thaeder <thaeder@kip.uni-heidelberg.de>        *
//*                  for The ALICE HLT Project.                            *
//*                                                                        *
//* Permission to use, copy, modify and distribute this software and its   *
//* documentation strictly for non-commercial purposes is hereby granted   *
//* without fee, provided that the above copyright notice appears in all   *
//* copies and that both the copyright notice and this permission notice   *
//* appear in the supporting documentation. The authors make no claims     *
//* about the suitability of this software for any purpose. It is          *
//* provided "as is" without express or implied warranty.                  *
//**************************************************************************

/** @file   AliHLTHOMERProxyHandler.cxx
    @author Jochen Thaeder
    @date
    @brief  HOMER proxy handler for HomerManger
*/

// see header file for class documentation
// or
// refer to README to build package
// or
// visit http://web.ift.uib.no/~kjeks/doc/alice-hlt

#include "TDOMParser.h"
#include "TSocket.h"
#include "TSystem.h"
// -- -- -- -- -- -- -- 
#include "AliHLTHOMERProxyHandler.h"
// -- -- -- -- -- -- -- 

ClassImp(AliHLTHOMERProxyHandler)

/*
 * ---------------------------------------------------------------------------------
 *                            Constructor / Destructor
 * ---------------------------------------------------------------------------------
 */

//##################################################################################
AliHLTHOMERProxyHandler::AliHLTHOMERProxyHandler() :
  fRealm(kHLT),
  fXmlRpcResponse(""),
  fSourceList(NULL) {
  // see header file for class documentation
  // or
  // refer to README to build package
  // or
  // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
}

//##################################################################################
AliHLTHOMERProxyHandler::~AliHLTHOMERProxyHandler() {
  // see header file for class documentation

}

//##################################################################################
Int_t AliHLTHOMERProxyHandler::Initialize() {
  // see header file for class documentation
  IdentifyRealm();
  return 0;
}

/*
 * ---------------------------------------------------------------------------------
 *                             Source List - public
 * ---------------------------------------------------------------------------------
 */

//##################################################################################
Int_t AliHLTHOMERProxyHandler::FillSourceList(TList *srcList) {
  // see header file for class documentation

  Int_t iResult = 0;

  fSourceList = srcList;

  iResult = RequestXmlRpcResponse();

  if (!iResult)
    iResult = ProcessXmlRpcResponse();

  if (iResult < 0) {
    HLTError("Filling SourceList failed.");
  }

  return iResult;
}

/*
 * ---------------------------------------------------------------------------------
 *                        Realms - private
 * ---------------------------------------------------------------------------------
 */

//##################################################################################
const Char_t *AliHLTHOMERProxyHandler::fgkHOMERProxyNode[] = { 
  "portal-dcs0.internal", 
  "alihlt-dcs0.cern.ch",
  "alihlt-vobox0.cern.ch",
  "alihlt-gw0.kip.uni-heidelberg.de",
  "localhost",
  "portal-dcs1.internal", 
  "alihlt-dcs1.cern.ch",
  "alihlt-vobox1.cern.ch",
  "alihlt-gw1.kip.uni-heidelberg.de",
  "localhost"
};

//##################################################################################
void AliHLTHOMERProxyHandler::IdentifyRealm() {
  // see header file for class documentation

  TString hostIP(gSystem->GetHostByName(gSystem->HostName()).GetHostAddress());
  
  HLTInfo(hostIP.Data());

  if ( hostIP.Contains("10.162.") )
    fRealm = kHLT;
  else if ( hostIP.Contains("10.160.") || hostIP.Contains("10.161.") )
    fRealm = kACR;
  else if ( hostIP.Contains("129.206.") )
    fRealm = kKIP;
  else  if ( hostIP.Contains("137.138") 
	     || hostIP.Contains("128.141") 
	     || hostIP.Contains("127.0.") 
	     || hostIP.Contains("192.168")
	     )
    fRealm = kGPN;
  else {
    fRealm = kLoc;
  }

  //fRealm = kLoc;

  return;
}

/*
 * ---------------------------------------------------------------------------------
 *                        Proxy Communication - private
 * ---------------------------------------------------------------------------------
 */

//##################################################################################
Int_t AliHLTHOMERProxyHandler::RequestXmlRpcResponse() {
  // see header file for class documentation

  Int_t iResult = 0;

  // -- open socket
  // ----------------

  Int_t proxyPort = 19999;

  TSocket *socket = new TSocket(fgkHOMERProxyNode[fRealm], proxyPort);
  if ( ! socket->IsValid() ) {
    HLTWarning(Form("Failed to create socket to %s:%d,",fgkHOMERProxyNode[fRealm], proxyPort));
    HLTWarning(Form("trying %s:%d now.", fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort));

    socket = new TSocket(fgkHOMERProxyNode[fRealm+kHOMERRealmsMax], proxyPort);
    if ( ! socket->IsValid() ) {
      HLTError(Form("Failed to create socket to %s:%d and %s:%d.",
		    fgkHOMERProxyNode[fRealm], proxyPort,
		    fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort));

      HLTWarning(Form("trying %s:%d now.",
		      fgkHOMERProxyNode[kLoc],proxyPort));
      socket = new TSocket(fgkHOMERProxyNode[kLoc], proxyPort);
      if ( ! socket->IsValid() ) {
        HLTError(Form("Failed to create socket to %s:%d , %s:%d and %s:%d.",
		      fgkHOMERProxyNode[fRealm], proxyPort,
		      fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort,
		      fgkHOMERProxyNode[kLoc], proxyPort));
        fRealm = -1;
        return -1;
      }
      else {
        fRealm = kLoc;
      }
    }
    else
      fRealm = fRealm+kHOMERRealmsMax;
  }

  // -- send request
  // -----------------

  Char_t reqMsg[] = "POST / HTTP/1.1\r\n\
User-Agent: curl/7.18.0 (x86_64-pc-linux-gnu) libcurl/7.18.0 OpenSSL/0.9.8g zlib/1.2.3.3 libidn/1.1\r\n\
Host: localhost:10000\r\n\
Accept: */*\r\n\
Content-type: text/xml\r\n\
Content-Length: 68\r\n\
\r\n<methodCall><methodName>getTcpDumpServices</methodName></methodCall>\r\n";

  iResult = socket->SendRaw( reqMsg, strlen(reqMsg) );
  if ( iResult < 1 || 
       iResult !=  static_cast<Int_t>(strlen(reqMsg))) {
    HLTError(Form("Error sending! -- send length %d  -- msg length %d.", iResult, static_cast<Int_t>(strlen(reqMsg)) ));
    socket->Close();
    return iResult;
  }
  
  // -- receive answer
  // -------------------

  const Int_t bufferSize = 1024;
  Char_t buffer[bufferSize];

  Bool_t isXmlRpc = kFALSE;

  fXmlRpcResponse = "";

  // -- loop for getting full xmlRPC response
  while(1) {

    Int_t bufferLength = 0;
    
    // -- loop for reading until end of line
    while (1) {

      iResult = socket->RecvRaw(&buffer[bufferLength], 1);
      if ( iResult < 0) {
	HLTError("Error reading form socket.");
	socket->Close();
	return iResult;
      }
            
      // -- Checking for  end of line
      if ( buffer[bufferLength] == 10 ) {
	buffer[bufferLength] = 0;
	break;
      }
      
      ++bufferLength;
    }

    TString bufferString(buffer);

    // -- Checking for start of XML response
    if ( bufferString.BeginsWith("<?xml") )
      isXmlRpc = kTRUE;

    // -- Append the xml response
    if (isXmlRpc) {
      fXmlRpcResponse.Append(bufferString);
    }

    // -- Checking for end of XML response
    if( ! bufferString.CompareTo("</methodResponse>") ) 
      break;
  }
  
  // -- close socket
  socket->Close();

  return 0;
}

//##################################################################################
Int_t AliHLTHOMERProxyHandler::ProcessXmlRpcResponse() {
  // see header file for class documentation

  Int_t iResult = 0;

  // -- Parse XML RPC Response
  // ---------------------------

  TDOMParser xmlParser;
  xmlParser.SetValidate(kFALSE);

  //NOTE Have to use a temporary variable for printing the XML responce,
  // because Form might overrun its internal buffer and crash for large strings.
  TString infoMsg = Form("XMLResponse: %s",fXmlRpcResponse.Data());
  HLTInfo(infoMsg.Data());
  
  iResult = xmlParser.ParseBuffer(fXmlRpcResponse.Data(), fXmlRpcResponse.Length());
  if ( iResult < 0 ) {
    HLTError(Form("Parsing buffer with error: %s", 
		  xmlParser.GetParseCodeMessage(xmlParser.GetParseCode()) ));
    

    return iResult;
  }

  TXMLNode * node = xmlParser.GetXMLDocument()->GetRootNode()->
    GetChildren()->GetChildren()->GetChildren()->GetChildren();
  
  if ( strcmp( node->GetNodeName(), "string" ) ) {
    HLTError("No node 'string' in XmlRpcResponse.");
    return -1;
  }

  // -- Parse Content
  // ------------------

  // -- Get Content
  TString xmlContent(node->GetText() );

  HLTDebug(Form("XMLContent: %s",xmlContent.Data()));

  iResult = xmlParser.ParseBuffer(xmlContent.Data(), xmlContent.Length());
  if ( iResult < 0 ) {
    HLTError(Form("Parsing buffer with error: %s", 
		  xmlParser.GetParseCodeMessage(xmlParser.GetParseCode()) ));

    return iResult;
  }
  
  if ( !xmlParser.GetXMLDocument()->GetRootNode()->HasChildren() ) {
    HLTWarning("No Services active.");
    return 1;
  }

  // -- Loop over all service nodes
  TXMLNode* serviceNode = xmlParser.GetXMLDocument()->GetRootNode()->GetChildren();
  TXMLNode* prevServiceNode = NULL;
  
  do {
    prevServiceNode = serviceNode;

    // -- Add service to list
    iResult = AddService( serviceNode->GetChildren() );
    if ( iResult > 0 ) {
      HLTWarning("Incomplete Service not added.");
      iResult = 0;
    }
  } while ( ( serviceNode = prevServiceNode->GetNextNode() ) && !iResult );


  return iResult;
}

/*
 * ---------------------------------------------------------------------------------
 *                            Source Resolving - private
 * ---------------------------------------------------------------------------------
 */

//##################################################################################
Int_t AliHLTHOMERProxyHandler::AddService(TXMLNode *innerNode) {
  // see header file for class documentation

  Int_t iResult = 0;

  HLTInfo(">> New service");    

  TXMLNode* serviceNode = innerNode;

  // -- Loop over all service properties and 
  //    read them from the service tag
  // -----------------------------------------

  TString hostname          = "";
  Int_t   port              = 0;
  TString dataType          = "";
  TString dataOrigin        = "";
  TString dataSpecification = "";

  TXMLNode* prevInnerNode = NULL;

  // -- Retrieve hostname and port
  // -------------------------------

  do {
    prevInnerNode = innerNode;
    
    if ( ! strcmp(innerNode->GetNodeName(), "text" ) )
      continue;
        
    // -- hostname
    if ( ! strcmp( innerNode->GetNodeName(), "address") ) {
      HLTInfo(Form("  > %s ++ %s", innerNode->GetNodeName(), innerNode->GetText() ));
      hostname = innerNode->GetText();
    }
    else if ( ! strcmp( innerNode->GetNodeName(), "port") ) {
      HLTInfo(Form("  > %s ++ %s", innerNode->GetNodeName(), innerNode->GetText() ));
      TString portS(innerNode->GetText());
      if ( portS.IsDigit() )
	port = portS.Atoi();
      else {
	HLTError(Form("Port %s is not a digit.", portS.Data()));
	iResult = -1;
      }
    }
  } while ( ( innerNode = prevInnerNode->GetNextNode() ) && !iResult );


  // -- Change hostame from service with proxy, if outside HLT
  if ( fRealm != kHLT && fRealm != kHLT+kHOMERRealmsMax )
    hostname = fgkHOMERProxyNode[fRealm];


  // -- Get Data Specifications from blocks
  // ----------------------------------------

  do {
    prevInnerNode = serviceNode;

    if ( strcmp( serviceNode->GetNodeName(), "blocks") )
      continue;
 
    TXMLNode* blocks = serviceNode->GetChildren();

    if ( ! blocks ) {
      HLTError("No blocks present");
      return 1;
    }
      
    TXMLNode* blockNode = blocks->GetNextNode();
    TXMLNode* prevBlockNode = NULL;

    if ( ! blockNode ) {
      HLTError("No block present in the blocks tag");
      return 1;
    }
      
    // -- blocks loop 
    
    do {
      prevBlockNode = blockNode;
      
      if ( strcmp( blockNode->GetNodeName(), "block") )
	continue;

      TXMLNode *dataNode = blockNode->GetChildren();
      TXMLNode *prevDataNode = NULL;

      if ( ! dataNode ) {
	HLTError("No data specification tags present in block tag.");
	return 1;
      }
      // -- data spec loop
      
      do {
	prevDataNode = dataNode;

	if ( ! strcmp(dataNode->GetNodeName(), "text" ) )
	  continue;

	HLTInfo(Form(" %s ++ %s", dataNode->GetNodeName(), dataNode->GetText() ));	

	if ( ! strcmp( dataNode->GetNodeName(), "dataorigin") ) {
	  dataOrigin = dataNode->GetText();
	}
	else if ( ! strcmp( dataNode->GetNodeName(), "datatype") ) {
	  dataType = dataNode->GetText();
	}
	else if ( ! strcmp( dataNode->GetNodeName(), "dataspecification") ) {
	  dataSpecification = dataNode->GetText();    
	}
      } while ( ( dataNode = prevDataNode->GetNextNode() ) && !iResult );
      
      // -- data spec loop

      // -- Check the service properties
      // ---------------------------------
      
      // -- Check for completeness of the source properties
      if ( hostname.IsNull() || !port || dataOrigin.IsNull() ||
	   dataType.IsNull() || dataSpecification.IsNull() ) {
	HLTWarning(Form("Service provides not all values:\n\thostname\t\t %s\n\tport\t\t\t %d\n\tdataorigin\t\t %s\n\tdatatype\t\t %s\n\tdataspecification\t 0x%08X", 
			hostname.Data(), port, dataOrigin.Data(), dataType.Data(), dataSpecification.Atoi()));
	
	return 1;
      }

      // -- Create new source
      // ----------------------
      
      AliHLTHOMERSourceDesc * source = new AliHLTHOMERSourceDesc();
      source->SetService( hostname, port, dataOrigin, dataType, dataSpecification );
      
      fSourceList->Add( source );
      
      HLTInfo(Form( "New Source added : %s", source->GetSourceName().Data()));

    } while ( ( blockNode = prevBlockNode->GetNextNode() ) && !iResult );


    // -- blocks loop
    
  } while ( ( serviceNode = prevInnerNode->GetNextNode() ) && !iResult );
  
  return iResult;
}
Commit	Line	Data
06272c83	1	//-- Mode: C++ --
	2	// $Id: AliHLTHOMERProxyHandler.cxx $
	3	//**************************************************************************
	4	//* This file is property of and copyright by the ALICE HLT Project *
	5	//* ALICE Experiment at CERN, All rights reserved. *
	6	//* *
	7	//* Primary Authors: Jochen Thaeder <thaeder@kip.uni-heidelberg.de> *
	8	//* for The ALICE HLT Project. *
	9	//* *
	10	//* Permission to use, copy, modify and distribute this software and its *
	11	//* documentation strictly for non-commercial purposes is hereby granted *
	12	//* without fee, provided that the above copyright notice appears in all *
	13	//* copies and that both the copyright notice and this permission notice *
	14	//* appear in the supporting documentation. The authors make no claims *
	15	//* about the suitability of this software for any purpose. It is *
	16	//* provided "as is" without express or implied warranty. *
	17	//**************************************************************************
	18
	19	/** @file AliHLTHOMERProxyHandler.cxx
	20	@author Jochen Thaeder
	21	@date
	22	@brief HOMER proxy handler for HomerManger
	23	*/
	24
	25	// see header file for class documentation
	26	// or
	27	// refer to README to build package
	28	// or
	29	// visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
	30
06272c83	31	#include "TDOMParser.h"
	32	#include "TSocket.h"
	33	#include "TSystem.h"
	34	// -- -- -- -- -- -- --
	35	#include "AliHLTHOMERProxyHandler.h"
e728e5ba	36	// -- -- -- -- -- -- --
06272c83	37
	38	ClassImp(AliHLTHOMERProxyHandler)
	39
	40	/*
	41	* ---------------------------------------------------------------------------------
	42	* Constructor / Destructor
	43	* ---------------------------------------------------------------------------------
	44	*/
	45
	46	//##################################################################################
	47	AliHLTHOMERProxyHandler::AliHLTHOMERProxyHandler() :
	48	fRealm(kHLT),
	49	fXmlRpcResponse(""),
	50	fSourceList(NULL) {
	51	// see header file for class documentation
	52	// or
	53	// refer to README to build package
	54	// or
	55	// visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
	56	}
	57
	58	//##################################################################################
	59	AliHLTHOMERProxyHandler::~AliHLTHOMERProxyHandler() {
	60	// see header file for class documentation
	61
	62	}
	63
	64	//##################################################################################
	65	Int_t AliHLTHOMERProxyHandler::Initialize() {
	66	// see header file for class documentation
06272c83	67	IdentifyRealm();
fd2adb88	68	return 0;
06272c83	69	}
	70
	71	/*
	72	* ---------------------------------------------------------------------------------
	73	* Source List - public
	74	* ---------------------------------------------------------------------------------
	75	*/
	76
	77	//##################################################################################
	78	Int_t AliHLTHOMERProxyHandler::FillSourceList(TList *srcList) {
	79	// see header file for class documentation
	80
	81	Int_t iResult = 0;
	82
	83	fSourceList = srcList;
	84
	85	iResult = RequestXmlRpcResponse();
	86
	87	if (!iResult)
	88	iResult = ProcessXmlRpcResponse();
	89
ae17e63c	90	if (iResult < 0) {
64984943	91	HLTError("Filling SourceList failed.");
ae17e63c	92	}
06272c83	93
	94	return iResult;
	95	}
	96
	97	/*
	98	* ---------------------------------------------------------------------------------
	99	* Realms - private
	100	* ---------------------------------------------------------------------------------
	101	*/
	102
	103	//##################################################################################
	104	const Char_t *AliHLTHOMERProxyHandler::fgkHOMERProxyNode[] = {
	105	"portal-dcs0.internal",
	106	"alihlt-dcs0.cern.ch",
	107	"alihlt-vobox0.cern.ch",
	108	"alihlt-gw0.kip.uni-heidelberg.de",
af7671cd	109	"localhost",
06272c83	110	"portal-dcs1.internal",
	111	"alihlt-dcs1.cern.ch",
	112	"alihlt-vobox1.cern.ch",
cfa641b1	113	"alihlt-gw1.kip.uni-heidelberg.de",
cfa641b1	114	"localhost"
06272c83	115	};
	116
	117	//##################################################################################
	118	void AliHLTHOMERProxyHandler::IdentifyRealm() {
	119	// see header file for class documentation
	120
	121	TString hostIP(gSystem->GetHostByName(gSystem->HostName()).GetHostAddress());
9403dc2c	122
9403dc2c	123	HLTInfo(hostIP.Data());
06272c83	124
	125	if ( hostIP.Contains("10.162.") )
	126	fRealm = kHLT;
	127	else if ( hostIP.Contains("10.160.") \|\| hostIP.Contains("10.161.") )
	128	fRealm = kACR;
	129	else if ( hostIP.Contains("129.206.") )
	130	fRealm = kKIP;
af7671cd	131	else if ( hostIP.Contains("137.138")
	132	\|\| hostIP.Contains("128.141")
	133	\|\| hostIP.Contains("127.0.")
9403dc2c	134	\|\| hostIP.Contains("192.168")
cfa641b1	135	)
06272c83	136	fRealm = kGPN;
cfa641b1	137	else {
	138	fRealm = kLoc;
	139	}
	140
fd2adb88	141	//fRealm = kLoc;
fd2adb88	142
06272c83	143	return;
	144	}
	145
	146	/*
	147	* ---------------------------------------------------------------------------------
	148	* Proxy Communication - private
	149	* ---------------------------------------------------------------------------------
	150	*/
	151
	152	//##################################################################################
	153	Int_t AliHLTHOMERProxyHandler::RequestXmlRpcResponse() {
	154	// see header file for class documentation
	155
	156	Int_t iResult = 0;
	157
	158	// -- open socket
	159	// ----------------
	160
	161	Int_t proxyPort = 19999;
	162
	163	TSocket *socket = new TSocket(fgkHOMERProxyNode[fRealm], proxyPort);
	164	if ( ! socket->IsValid() ) {
b6bb7ca3	165	HLTWarning(Form("Failed to create socket to %s:%d,",fgkHOMERProxyNode[fRealm], proxyPort));
b6bb7ca3	166	HLTWarning(Form("trying %s:%d now.", fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort));
06272c83	167
	168	socket = new TSocket(fgkHOMERProxyNode[fRealm+kHOMERRealmsMax], proxyPort);
	169	if ( ! socket->IsValid() ) {
b6bb7ca3	170	HLTError(Form("Failed to create socket to %s:%d and %s:%d.",
e728e5ba	171	fgkHOMERProxyNode[fRealm], proxyPort,
	172	fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort));
	173
c4b95fdd	174	HLTWarning(Form("trying %s:%d now.",
	175	fgkHOMERProxyNode[kLoc],proxyPort));
	176	socket = new TSocket(fgkHOMERProxyNode[kLoc], proxyPort);
	177	if ( ! socket->IsValid() ) {
	178	HLTError(Form("Failed to create socket to %s:%d , %s:%d and %s:%d.",
	179	fgkHOMERProxyNode[fRealm], proxyPort,
	180	fgkHOMERProxyNode[fRealm+kHOMERRealmsMax],proxyPort,
	181	fgkHOMERProxyNode[kLoc], proxyPort));
	182	fRealm = -1;
	183	return -1;
	184	}
	185	else {
	186	fRealm = kLoc;
	187	}
06272c83	188	}
	189	else
	190	fRealm = fRealm+kHOMERRealmsMax;
	191	}
	192
	193	// -- send request
	194	// -----------------
	195
5e5d2b7e	196	Char_t reqMsg[] = "POST / HTTP/1.1\r\n\
06272c83	197	User-Agent: curl/7.18.0 (x86_64-pc-linux-gnu) libcurl/7.18.0 OpenSSL/0.9.8g zlib/1.2.3.3 libidn/1.1\r\n\
	198	Host: localhost:10000\r\n\
	199	Accept: /\r\n\
	200	Content-type: text/xml\r\n\
	201	Content-Length: 68\r\n\
	202	\r\n<methodCall><methodName>getTcpDumpServices</methodName></methodCall>\r\n";
	203
	204	iResult = socket->SendRaw( reqMsg, strlen(reqMsg) );
	205	if ( iResult < 1 \|\|
	206	iResult != static_cast<Int_t>(strlen(reqMsg))) {
b6bb7ca3	207	HLTError(Form("Error sending! -- send length %d -- msg length %d.", iResult, static_cast<Int_t>(strlen(reqMsg)) ));
06272c83	208	socket->Close();
	209	return iResult;
	210	}
	211
	212	// -- receive answer
	213	// -------------------
	214
	215	const Int_t bufferSize = 1024;
	216	Char_t buffer[bufferSize];
	217
	218	Bool_t isXmlRpc = kFALSE;
	219
	220	fXmlRpcResponse = "";
	221
	222	// -- loop for getting full xmlRPC response
	223	while(1) {
	224
	225	Int_t bufferLength = 0;
	226
	227	// -- loop for reading until end of line
	228	while (1) {
	229
	230	iResult = socket->RecvRaw(&buffer[bufferLength], 1);
	231	if ( iResult < 0) {
64984943	232	HLTError("Error reading form socket.");
06272c83	233	socket->Close();
	234	return iResult;
	235	}
	236
	237	// -- Checking for end of line
	238	if ( buffer[bufferLength] == 10 ) {
	239	buffer[bufferLength] = 0;
	240	break;
	241	}
	242
	243	++bufferLength;
	244	}
	245
	246	TString bufferString(buffer);
	247
	248	// -- Checking for start of XML response
	249	if ( bufferString.BeginsWith("<?xml") )
	250	isXmlRpc = kTRUE;
	251
	252	// -- Append the xml response
	253	if (isXmlRpc) {
	254	fXmlRpcResponse.Append(bufferString);
	255	}
	256
	257	// -- Checking for end of XML response
	258	if( ! bufferString.CompareTo("</methodResponse>") )
	259	break;
	260	}
	261
	262	// -- close socket
	263	socket->Close();
	264
	265	return 0;
	266	}
	267
	268	//##################################################################################
	269	Int_t AliHLTHOMERProxyHandler::ProcessXmlRpcResponse() {
	270	// see header file for class documentation
	271
	272	Int_t iResult = 0;
	273
	274	// -- Parse XML RPC Response
	275	// ---------------------------
	276
	277	TDOMParser xmlParser;
	278	xmlParser.SetValidate(kFALSE);
	279
64984943	280	//NOTE Have to use a temporary variable for printing the XML responce,
	281	// because Form might overrun its internal buffer and crash for large strings.
	282	TString infoMsg = Form("XMLResponse: %s",fXmlRpcResponse.Data());
	283	HLTInfo(infoMsg.Data());
a82a31af	284
06272c83	285	iResult = xmlParser.ParseBuffer(fXmlRpcResponse.Data(), fXmlRpcResponse.Length());
06272c83	286	if ( iResult < 0 ) {
b6bb7ca3	287	HLTError(Form("Parsing buffer with error: %s",
e728e5ba	288	xmlParser.GetParseCodeMessage(xmlParser.GetParseCode()) ));
	289
	290
06272c83	291	return iResult;
	292	}
	293
	294	TXMLNode * node = xmlParser.GetXMLDocument()->GetRootNode()->
	295	GetChildren()->GetChildren()->GetChildren()->GetChildren();
	296
	297	if ( strcmp( node->GetNodeName(), "string" ) ) {
64984943	298	HLTError("No node 'string' in XmlRpcResponse.");
06272c83	299	return -1;
	300	}
	301
	302	// -- Parse Content
	303	// ------------------
	304
	305	// -- Get Content
	306	TString xmlContent(node->GetText() );
	307
9e78371d	308	HLTDebug(Form("XMLContent: %s",xmlContent.Data()));
06272c83	309
	310	iResult = xmlParser.ParseBuffer(xmlContent.Data(), xmlContent.Length());
	311	if ( iResult < 0 ) {
b6bb7ca3	312	HLTError(Form("Parsing buffer with error: %s",
e728e5ba	313	xmlParser.GetParseCodeMessage(xmlParser.GetParseCode()) ));
e728e5ba	314
06272c83	315	return iResult;
	316	}
	317
06272c83	318	if ( !xmlParser.GetXMLDocument()->GetRootNode()->HasChildren() ) {
64984943	319	HLTWarning("No Services active.");
ae17e63c	320	return 1;
06272c83	321	}
	322
	323	// -- Loop over all service nodes
	324	TXMLNode* serviceNode = xmlParser.GetXMLDocument()->GetRootNode()->GetChildren();
	325	TXMLNode* prevServiceNode = NULL;
	326
	327	do {
	328	prevServiceNode = serviceNode;
	329
	330	// -- Add service to list
	331	iResult = AddService( serviceNode->GetChildren() );
74682ab7	332	if ( iResult > 0 ) {
64984943	333	HLTWarning("Incomplete Service not added.");
74682ab7	334	iResult = 0;
74682ab7	335	}
06272c83	336	} while ( ( serviceNode = prevServiceNode->GetNextNode() ) && !iResult );
06272c83	337
74682ab7	338
74682ab7	339
06272c83	340	return iResult;
	341	}
	342
	343	/*
	344	* ---------------------------------------------------------------------------------
	345	* Source Resolving - private
	346	* ---------------------------------------------------------------------------------
	347	*/
	348
	349	//##################################################################################
	350	Int_t AliHLTHOMERProxyHandler::AddService(TXMLNode *innerNode) {
	351	// see header file for class documentation
	352
	353	Int_t iResult = 0;
	354
64984943	355	HLTInfo(">> New service");
06272c83	356
69f2a104	357	TXMLNode* serviceNode = innerNode;
69f2a104	358
06272c83	359	// -- Loop over all service properties and
	360	// read them from the service tag
	361	// -----------------------------------------
	362
	363	TString hostname = "";
	364	Int_t port = 0;
	365	TString dataType = "";
	366	TString dataOrigin = "";
	367	TString dataSpecification = "";
	368
	369	TXMLNode* prevInnerNode = NULL;
	370
69f2a104	371	// -- Retrieve hostname and port
	372	// -------------------------------
	373
06272c83	374	do {
	375	prevInnerNode = innerNode;
	376
	377	if ( ! strcmp(innerNode->GetNodeName(), "text" ) )
	378	continue;
69f2a104	379
06272c83	380	// -- hostname
69f2a104	381	if ( ! strcmp( innerNode->GetNodeName(), "address") ) {
69f2a104	382	HLTInfo(Form(" > %s ++ %s", innerNode->GetNodeName(), innerNode->GetText() ));
06272c83	383	hostname = innerNode->GetText();
69f2a104	384	}
06272c83	385	else if ( ! strcmp( innerNode->GetNodeName(), "port") ) {
69f2a104	386	HLTInfo(Form(" > %s ++ %s", innerNode->GetNodeName(), innerNode->GetText() ));
06272c83	387	TString portS(innerNode->GetText());
	388	if ( portS.IsDigit() )
	389	port = portS.Atoi();
	390	else {
b6bb7ca3	391	HLTError(Form("Port %s is not a digit.", portS.Data()));
06272c83	392	iResult = -1;
	393	}
	394	}
06272c83	395	} while ( ( innerNode = prevInnerNode->GetNextNode() ) && !iResult );
06272c83	396
06272c83	397
06272c83	398	// -- Change hostame from service with proxy, if outside HLT
b325d632	399	if ( fRealm != kHLT && fRealm != kHLT+kHOMERRealmsMax )
06272c83	400	hostname = fgkHOMERProxyNode[fRealm];
06272c83	401
e728e5ba	402
69f2a104	403	// -- Get Data Specifications from blocks
	404	// ----------------------------------------
	405
	406	do {
	407	prevInnerNode = serviceNode;
	408
	409	if ( strcmp( serviceNode->GetNodeName(), "blocks") )
	410	continue;
	411
	412	TXMLNode* blocks = serviceNode->GetChildren();
	413
	414	if ( ! blocks ) {
64984943	415	HLTError("No blocks present");
69f2a104	416	return 1;
	417	}
	418
	419	TXMLNode* blockNode = blocks->GetNextNode();
	420	TXMLNode* prevBlockNode = NULL;
	421
	422	if ( ! blockNode ) {
64984943	423	HLTError("No block present in the blocks tag");
69f2a104	424	return 1;
	425	}
	426
	427	// -- blocks loop
	428
	429	do {
	430	prevBlockNode = blockNode;
	431
	432	if ( strcmp( blockNode->GetNodeName(), "block") )
	433	continue;
	434
	435	TXMLNode *dataNode = blockNode->GetChildren();
	436	TXMLNode *prevDataNode = NULL;
	437
	438	if ( ! dataNode ) {
64984943	439	HLTError("No data specification tags present in block tag.");
69f2a104	440	return 1;
	441	}
	442	// -- data spec loop
	443
	444	do {
	445	prevDataNode = dataNode;
	446
	447	if ( ! strcmp(dataNode->GetNodeName(), "text" ) )
	448	continue;
	449
	450	HLTInfo(Form(" %s ++ %s", dataNode->GetNodeName(), dataNode->GetText() ));
	451
	452	if ( ! strcmp( dataNode->GetNodeName(), "dataorigin") ) {
	453	dataOrigin = dataNode->GetText();
	454	}
	455	else if ( ! strcmp( dataNode->GetNodeName(), "datatype") ) {
	456	dataType = dataNode->GetText();
	457	}
	458	else if ( ! strcmp( dataNode->GetNodeName(), "dataspecification") ) {
	459	dataSpecification = dataNode->GetText();
	460	}
	461	} while ( ( dataNode = prevDataNode->GetNextNode() ) && !iResult );
	462
	463	// -- data spec loop
	464
	465	// -- Check the service properties
	466	// ---------------------------------
	467
	468	// -- Check for completeness of the source properties
	469	if ( hostname.IsNull() \|\| !port \|\| dataOrigin.IsNull() \|\|
	470	dataType.IsNull() \|\| dataSpecification.IsNull() ) {
	471	HLTWarning(Form("Service provides not all values:\n\thostname\t\t %s\n\tport\t\t\t %d\n\tdataorigin\t\t %s\n\tdatatype\t\t %s\n\tdataspecification\t 0x%08X",
	472	hostname.Data(), port, dataOrigin.Data(), dataType.Data(), dataSpecification.Atoi()));
	473
	474	return 1;
	475	}
06272c83	476
69f2a104	477	// -- Create new source
	478	// ----------------------
	479
	480	AliHLTHOMERSourceDesc * source = new AliHLTHOMERSourceDesc();
	481	source->SetService( hostname, port, dataOrigin, dataType, dataSpecification );
	482
	483	fSourceList->Add( source );
	484
	485	HLTInfo(Form( "New Source added : %s", source->GetSourceName().Data()));
06272c83	486
69f2a104	487	} while ( ( blockNode = prevBlockNode->GetNextNode() ) && !iResult );
06272c83	488
06272c83	489
69f2a104	490	// -- blocks loop
	491
	492	} while ( ( serviceNode = prevInnerNode->GetNextNode() ) && !iResult );
06272c83	493
	494	return iResult;
	495	}
	496
	497