Rivendellaudio/web/rdxport/logs.cpp

// logs.cpp
//
// Rivendell web service portal -- Log services
//
//   (C) Copyright 2013-2018 Fred Gleason <fredg@paravelsystems.com>
//
//   This program is free software; you can redistribute it and/or modify
//   it under the terms of the GNU General Public License version 2 as
//   published by the Free Software Foundation.
//
//   This program is distributed in the hope that it will be useful,
//   but WITHOUT ANY WARRANTY; without even the implied warranty of
//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//   GNU General Public License for more details.
//
//   You should have received a copy of the GNU General Public
//   License along with this program; if not, write to the Free Software
//   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>

#include <rdapplication.h>
#include <rdconf.h>
#include <rddb.h>
#include <rdescape_string.h>
#include <rdformpost.h>
#include <rdlog.h>
#include <rdlog_event.h>
#include <rdlog_line.h>
#include <rdloglock.h>
#include <rduser.h>
#include <rdweb.h>

#include "rdxport.h"

void Xport::AddLog()
{
  QString log_name;
  QString service_name;

  //
  // Get Arguments
  //
  if(!xport_post->getValue("LOG_NAME",&log_name)) {
    XmlExit("Missing LOG_NAME",400,"logs.cpp",LINE_NUMBER);
  }
  if(!xport_post->getValue("SERVICE_NAME",&service_name)) {
    XmlExit("Missing SERVICE_NAME",400,"logs.cpp",LINE_NUMBER);
  }
  GetLogService(service_name);

  //
  // Verify User Perms
  //
  if(!rda->user()->createLog()) {
    XmlExit("Unauthorized",404,"logs.cpp",LINE_NUMBER);
  }

  QString err_msg;
  if(!RDLog::create(log_name,service_name,QDate(),rda->user()->name(),&err_msg,
		    rda->config())) {
    XmlExit(err_msg,500,"logs.cpp",LINE_NUMBER);
  }
  SendNotification(RDNotification::LogType,RDNotification::AddAction,
		   QVariant(log_name));
  XmlExit("OK",200,"logs.cpp",LINE_NUMBER);
}


void Xport::DeleteLog()
{
  QString log_name;

  //
  // Get Arguments
  //
  if(!xport_post->getValue("LOG_NAME",&log_name)) {
    XmlExit("Missing LOG_NAME",400,"logs.cpp",LINE_NUMBER);
  }

  //
  // Verify User Perms
  //
  if(!rda->user()->deleteLog()) {
    XmlExit("Unauthorized",404,"logs.cpp",LINE_NUMBER);
  }

  RDLog *log=new RDLog(log_name);
  if(log->exists()) {
    if(!log->remove(rda->station(),rda->user(),rda->config())) {
      delete log;
      XmlExit("Unable to delete log",500,"logs.cpp",LINE_NUMBER);
    }
    SendNotification(RDNotification::LogType,RDNotification::DeleteAction,
		     QVariant(log->name()));
  }
  delete log;

  XmlExit("OK",200,"logs.cpp",LINE_NUMBER);
}


void Xport::ListLogs()
{
  QString sql;
  RDSqlQuery *q;
  RDLog *log;
  QString service_name="";
  QString log_name="";
  QString trackable;
  QString filter="";
  QString recent="";

  //
  // Get Options
  //
  xport_post->getValue("SERVICE_NAME",&service_name);
  if(!service_name.isEmpty()) {
    GetLogService(service_name);
  }
  xport_post->getValue("LOG_NAME",&log_name);
  xport_post->getValue("TRACKABLE",&trackable);
  xport_post->getValue("FILTER",&filter);
  filter=filter.stripWhiteSpace();
  xport_post->getValue("RECENT",&recent);

  //
  // Generate Log List
  //
  sql="select NAME from LOGS";
  sql+=" where";
  if(!log_name.isEmpty()) {
    sql+=" (NAME=\""+RDEscapeString(log_name)+"\")&&";
  }
  if(service_name.isEmpty()) {
    QString sql2=QString("select SERVICE_NAME from USER_SERVICE_PERMS where ")+
      "USER_NAME=\""+RDEscapeString(rda->user()->name())+"\"";
    q=new RDSqlQuery(sql2);
    sql+="(";
    while(q->next()) {
      sql+="(SERVICE=\""+RDEscapeString(q->value(0).toString())+"\")||";
    }
    sql=sql.left(sql.length()-2);
    sql+=")&&";
    delete q;
  }
  else {
    sql+=" (SERVICE=\""+RDEscapeString(service_name)+"\")&&";
  }
  if(trackable=="1") {
    sql+=" (SCHEDULED_TRACKS>0)&&";
  }
  if(!filter.isEmpty()) {
    if(service_name.isEmpty()) {
      sql+=" ((LOGS.NAME like \"%%"+RDEscapeString(filter)+"%%\")||";
      sql+="(LOGS.DESCRIPTION like \"%%"+RDEscapeString(filter)+"%%\")||";
      sql+="(LOGS.SERVICE like \"%%"+RDEscapeString(filter)+"%%\"))&&";
    }
    else {
      sql+=" ((LOGS.NAME like \"%%"+RDEscapeString(filter)+"%%\")||";
      sql+="(LOGS.DESCRIPTION like \"%%"+RDEscapeString(filter)+"%%\"))&&";
    }
  }
  sql=sql.stripWhiteSpace();
  if(sql.right(2)=="&&") {
    sql=sql.left(sql.length()-2);
  }
  sql=sql.stripWhiteSpace();
  if(sql.right(5)=="where") {
    sql=sql.left(sql.length()-5);
  }
  if(recent=="1") {
    sql+=QString().sprintf(" order by LOGS.ORIGIN_DATETIME desc limit %d",
			   RD_LOGFILTER_LIMIT_QUAN);
  }
  else {
    sql+=" order by NAME";
  }
  q=new RDSqlQuery(sql);

  //
  // Process Request
  //
  printf("Content-type: application/xml\n");
  printf("Status: 200\n\n");
  printf("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n");
  printf("<logList>\n");
  while(q->next()) {
    log=new RDLog(q->value(0).toString());
    printf("%s",(const char *)log->xml().utf8());
    delete log;
  }
  printf("</logList>\n");

  delete q;
  Exit(0);
}


void Xport::ListLog()
{
  RDLog *log;
  QString name="";

  //
  // Get Options
  //
  xport_post->getValue("NAME",&name);

  //
  // Verify that log exists
  //
  log=new RDLog(name);
  if((!ServiceUserValid(log->service()))||(!log->exists())) {
    delete log;
    XmlExit("No such log",404,"logs.cpp",LINE_NUMBER);
  }

  //
  // Generate Log Listing
  //
  RDLogEvent *log_event=log->createLogEvent();
  log_event->load(true);

  //
  // Process Request
  //
  printf("Content-type: application/xml\n");
  printf("Status: 200\n\n");
  printf("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n");
  printf("%s\n",(const char *)log_event->xml().utf8());

  Exit(0);
}


void Xport::SaveLog()
{
  //
  // Verify User Perms
  //
  if((!rda->user()->addtoLog())||(!rda->user()->removefromLog())||(!rda->user()->arrangeLog())) {
    XmlExit("No user privilege",404,"logs.cpp",LINE_NUMBER);
  }

  QString log_name;
  QString service_name;
  QString lock_guid;
  QString description;
  QDate purge_date;
  bool auto_refresh;
  QDate start_date;
  QDate end_date;
  int line_quantity;

  //
  // Header Data
  //
  if(!xport_post->getValue("LOG_NAME",&log_name)) {
    XmlExit("Missing LOG_NAME",400,"logs.cpp",LINE_NUMBER);
  }
  if(!xport_post->getValue("SERVICE_NAME",&service_name)) {
    XmlExit("Missing SERVICE_NAME",400,"logs.cpp",LINE_NUMBER);
  }
  GetLogService(service_name);
  xport_post->getValue("LOCK_GUID",&lock_guid);
  if(!xport_post->getValue("DESCRIPTION",&description)) {
    XmlExit("Missing DESCRIPTION",400,"logs.cpp",LINE_NUMBER);
  }
  if(!xport_post->getValue("PURGE_DATE",&purge_date)) {
    XmlExit("Missing PURGE_DATE",400,"logs.cpp",LINE_NUMBER);
  }
  if(!xport_post->getValue("AUTO_REFRESH",&auto_refresh)) {
    XmlExit("Missing AUTO_REFRESH",400,"logs.cpp",LINE_NUMBER);
  }
  if(!xport_post->getValue("START_DATE",&start_date)) {
    XmlExit("Missing START_DATE",400,"logs.cpp",LINE_NUMBER);
  }
  if(!xport_post->getValue("END_DATE",&end_date)) {
    XmlExit("Missing END_DATE",400,"logs.cpp",LINE_NUMBER);
  }
  if(!xport_post->getValue("LINE_QUANTITY",&line_quantity)) {
    XmlExit("Missing LINE_QUANTITY",400,"logs.cpp",LINE_NUMBER);
  }

  //
  // Logline Data
  //
  RDLogEvent *logevt=new RDLogEvent(log_name);
  for(int i=0;i<line_quantity;i++) {
    logevt->insert(i,1);
    RDLogLine *ll=logevt->logLine(i);
    QString line=QString().sprintf("LINE%d",i);
    QString str;
    int integer1;
    int integer2;
    QDateTime datetime;
    QTime time;
    bool state;
    bool ok=false;

    if(!xport_post->getValue(line+"_ID",&integer1,&ok)) {
      XmlExit("Missing "+line+"_ID",400,"logs.cpp",LINE_NUMBER);
    }
    if(!ok) {
      XmlExit("Invalid "+line+"_ID",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setId(integer1);

    if(!xport_post->getValue(line+"_TYPE",&integer1)) {
      XmlExit("Missing "+line+"_TYPE",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setType((RDLogLine::Type)integer1);

    if(!xport_post->getValue(line+"_CART_NUMBER",&integer1)) {
      XmlExit("Missing "+line+"_CART_NUMBER",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setCartNumber(integer1);

    if(!xport_post->getValue(line+"_TIME_TYPE",&integer2)) {
      XmlExit("Missing "+line+"_TIME_TYPE",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setTimeType((RDLogLine::TimeType)integer2);

    if(!xport_post->getValue(line+"_START_TIME",&integer1)) {
      XmlExit("Missing "+line+"_START_TIME",400,"logs.cpp",LINE_NUMBER);
    }
    if(ll->timeType()==RDLogLine::Hard) {
      ll->setStartTime(RDLogLine::Logged,QTime().addMSecs(integer1));
    }
    else {
      ll->setStartTime(RDLogLine::Predicted,QTime().addMSecs(integer1));
    }

    if(!xport_post->getValue(line+"_GRACE_TIME",&integer1)) {
      XmlExit("Missing "+line+"_GRACE_TIME",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setGraceTime(integer1);

    if(!xport_post->getValue(line+"_TRANS_TYPE",&str)) {
      XmlExit("Missing "+line+"_TRANS_TYPE",400,"logs.cpp",LINE_NUMBER);
    }
    integer1=-1;
    if(str.lower()=="play") {
      integer1=RDLogLine::Play;
    }
    if(str.lower()=="segue") {
      integer1=RDLogLine::Segue;
    }
    if(str.lower()=="stop") {
      integer1=RDLogLine::Stop;
    }
    if(integer1<0) {
      XmlExit("Invalid transition type in "+line+"_TRANS_TYPE",400,
	      "logs.cpp",LINE_NUMBER);
    }
    ll->setTransType((RDLogLine::TransType)integer1);

    if(!xport_post->getValue(line+"_START_POINT",&integer1)) {
      XmlExit("Missing "+line+"_START_POINT",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setStartPoint(integer1,RDLogLine::LogPointer);

    if(!xport_post->getValue(line+"_END_POINT",&integer1)) {
      XmlExit("Missing "+line+"_END_POINT",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setEndPoint(integer1,RDLogLine::LogPointer);

    if(!xport_post->getValue(line+"_SEGUE_START_POINT",&integer1)) {
      XmlExit("Missing "+line+"_SEGUE_START_POINT",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setSegueStartPoint(integer1,RDLogLine::LogPointer);

    if(!xport_post->getValue(line+"_SEGUE_END_POINT",&integer1)) {
      XmlExit("Missing "+line+"_SEGUE_END_POINT",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setSegueEndPoint(integer1,RDLogLine::LogPointer);

    if(!xport_post->getValue(line+"_FADEUP_POINT",&integer1)) {
      XmlExit("Missing "+line+"_FADEUP_POINT",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setFadeupPoint(integer1,RDLogLine::LogPointer);

    if(!xport_post->getValue(line+"_FADEUP_GAIN",&integer1)) {
      XmlExit("Missing "+line+"_FADEUP_GAIN",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setFadeupGain(integer1);

    if(!xport_post->getValue(line+"_FADEDOWN_POINT",&integer1)) {
      XmlExit("Missing "+line+"_FADEDOWN_POINT",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setFadedownPoint(integer1,RDLogLine::LogPointer);

    if(!xport_post->getValue(line+"_FADEDOWN_GAIN",&integer1)) {
      XmlExit("Missing "+line+"_FADEDOWN_GAIN",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setFadedownGain(integer1);

    if(!xport_post->getValue(line+"_DUCK_UP_GAIN",&integer1)) {
      XmlExit("Missing "+line+"_DUCK_UP_GAIN",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setDuckUpGain(integer1);

    if(!xport_post->getValue(line+"_DUCK_DOWN_GAIN",&integer1)) {
      XmlExit("Missing "+line+"_DUCK_DOWN_GAIN",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setDuckDownGain(integer1);

    if(!xport_post->getValue(line+"_COMMENT",&str)) {
      XmlExit("Missing "+line+"_COMMENT",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setMarkerComment(str);

    if(!xport_post->getValue(line+"_LABEL",&str)) {
      XmlExit("Missing "+line+"_LABEL",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setMarkerLabel(str);

    if(!xport_post->getValue(line+"_ORIGIN_USER",&str)) {
      XmlExit("Missing "+line+"_ORIGIN_USER",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setOriginUser(str);

    if(!xport_post->getValue(line+"_ORIGIN_DATETIME",&datetime)) {
      XmlExit("Missing "+line+"_ORIGIN_DATETIME",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setOriginDateTime(datetime);

    if(!xport_post->getValue(line+"_EVENT_LENGTH",&integer1)) {
      XmlExit("Missing "+line+"_EVENT_LENGTH",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setEventLength(integer1);

    if(!xport_post->getValue(line+"_LINK_EVENT_NAME",&str)) {
      XmlExit("Missing "+line+"_LINK_EVENT_NAME",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setLinkEventName(str);

    if(!xport_post->getValue(line+"_LINK_START_TIME",&integer1)) {
      XmlExit("Missing "+line+"_LINK_START_TIME",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setLinkStartTime(QTime().addMSecs(integer1));

    if(!xport_post->getValue(line+"_LINK_LENGTH",&integer1)) {
      XmlExit("Missing "+line+"_LINK_LENGTH",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setLinkLength(integer1);

    if(!xport_post->getValue(line+"_LINK_START_SLOP",&integer1)) {
      XmlExit("Missing "+line+"_LINK_START_SLOP",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setLinkStartSlop(integer1);

    if(!xport_post->getValue(line+"_LINK_END_SLOP",&integer1)) {
      XmlExit("Missing "+line+"_LINK_END_SLOP",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setLinkEndSlop(integer1);

    if(!xport_post->getValue(line+"_LINK_ID",&integer1)) {
      XmlExit("Missing "+line+"_LINK_ID",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setLinkId(integer1);

    if(!xport_post->getValue(line+"_LINK_EMBEDDED",&state)) {
      XmlExit("Missing "+line+"_LINK_EMBEDDED",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setLinkEmbedded(state);

    if(!xport_post->getValue(line+"_EXT_START_TIME",&time)) {
      XmlExit("Missing "+line+"_EXT_START_TIME",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setExtStartTime(time);

    if(!xport_post->getValue(line+"_EXT_CART_NAME",&str)) {
      XmlExit("Missing "+line+"_EXT_CART_NAME",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setExtCartName(str);

    if(!xport_post->getValue(line+"_EXT_DATA",&str)) {
      XmlExit("Missing "+line+"_EXT_DATA",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setExtData(str);

    if(!xport_post->getValue(line+"_EXT_EVENT_ID",&str)) {
      XmlExit("Missing "+line+"_EXT_EVENT_ID",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setExtEventId(str);

    if(!xport_post->getValue(line+"_EXT_ANNC_TYPE",&str)) {
      XmlExit("Missing "+line+"_EXT_ANNC_TYPE",400,"logs.cpp",LINE_NUMBER);
    }
    ll->setExtAnncType(str);
  }

  RDLog *log=new RDLog(log_name);
  if(!log->exists()) {
    XmlExit("No such log",404,"logs.cpp",LINE_NUMBER);
  }
  if(lock_guid.isEmpty()) {
    QString username=rda->user()->name();
    QString stationname=xport_remote_hostname;
    QHostAddress addr=xport_remote_address;
    lock_guid=RDLogLock::makeGuid(stationname);
    if(RDLogLock::tryLock(&username,&stationname,&addr,log_name,lock_guid)) {
      log->setService(service_name);
      log->setDescription(description);
      log->setPurgeDate(purge_date);
      log->setAutoRefresh(auto_refresh);
      log->setStartDate(start_date);
      log->setEndDate(end_date);
      log->setModifiedDatetime(QDateTime::currentDateTime());
      logevt->save(rda->config());
      RDLogLock::clearLock(lock_guid);
    }
    else {
      XmlExit("unable to get log lock",404);
    }
  }
  else {
    if(RDLogLock::validateLock(log_name,lock_guid)) {
      log->setService(service_name);
      log->setDescription(description);
      log->setPurgeDate(purge_date);
      log->setAutoRefresh(auto_refresh);
      log->setStartDate(start_date);
      log->setEndDate(end_date);
      log->setModifiedDatetime(QDateTime::currentDateTime());
      logevt->save(rda->config());
      SendNotification(RDNotification::LogType,RDNotification::ModifyAction,
		       QVariant(log->name()));
    }
    else {
      XmlExit("invalid log lock",400);
    }
  }
  XmlExit(QString().sprintf("OK Saved %d events",logevt->size()),
	  200,"logs.cpp",LINE_NUMBER);
}


void Xport::LockLog()
{
  RDLog *log;
  QString log_name="";
  Xport::LockLogOperation op_type=Xport::LockLogClear;
  QString op_string;
  QString lock_guid;
  QString username;
  QString stationname;
  QHostAddress addr;

  //
  // Get Options
  //
  if(!xport_post->getValue("LOG_NAME",&log_name)) {
    XmlExit("Missing LOG_NAME",400,"logs.cpp",LINE_NUMBER);
  }
  if(!xport_post->getValue("OPERATION",&op_string)) {
    XmlExit("Missing OPERATION",400,"logs.cpp",LINE_NUMBER);
  }
  if(op_string.lower()=="create") {
    op_type=Xport::LockLogCreate;
  }
  else {
    if(op_string.lower()=="update") {
      op_type=Xport::LockLogUpdate;
    }
    else {
      if(op_string.lower()=="clear") {
	op_type=Xport::LockLogClear;
      }
      else {
	XmlExit("Unrecognized OPERATION type",400,"logs.cpp",LINE_NUMBER);
      }
    }
  }
  if(!xport_post->getValue("LOCK_GUID",&lock_guid)) {
    XmlExit("Missing LOCK_GUID",400,"logs.cpp",LINE_NUMBER);
  }

  //
  // Verify that log exists
  //
  log=new RDLog(log_name);
  if((!ServiceUserValid(log->service()))||(!log->exists())) {
    delete log;
    XmlExit("No such log",404,"logs.cpp",LINE_NUMBER);
  }

  printf("Content-type: application/xml\n");
  printf("Status: 200\n\n");
  switch(op_type) {
  case Xport::LockLogCreate:
    username=rda->user()->name();
    stationname=xport_remote_hostname;
    addr=xport_remote_address;
    lock_guid=RDLogLock::makeGuid(xport_remote_hostname);
    if(RDLogLock::tryLock(&username,&stationname,&addr,log_name,lock_guid)) {
      printf("%s",(const char *)LogLockXml(true,log_name,lock_guid,"","",addr).utf8());
    }
    else {
      printf("%s",(const char *)LogLockXml(false,log_name,"",username,
					   stationname,addr).utf8());
    }
    Exit(0);
    break;

  case Xport::LockLogUpdate:
    RDLogLock::updateLock(log_name,lock_guid);
    printf("%s",(const char *)LogLockXml(true,log_name,lock_guid,"","",addr).utf8());
    Exit(0);
    break;

  case Xport::LockLogClear:
    RDLogLock::clearLock(lock_guid);
    printf("%s",(const char *)LogLockXml(true,log_name,lock_guid,"","",addr).utf8());
    Exit(0);
    break;
  }

  XmlExit("Unexpected exit",500);
}


RDSvc *Xport::GetLogService(const QString &svc_name)
{
  QString sql=QString("select SERVICE_NAME from USER_SERVICE_PERMS where ")+
    "(USER_NAME=\""+RDEscapeString(rda->user()->name())+"\")&&"+
    "(SERVICE_NAME=\""+RDEscapeString(svc_name)+"\")";
  RDSqlQuery *q=new RDSqlQuery(sql);
  if(!q->first()) {
    XmlExit("No such service",404,"logs.cpp",LINE_NUMBER);
  }
  delete q;
  RDSvc *svc=new RDSvc(svc_name,rda->station(),rda->config());
  if(!svc->exists()) {
    XmlExit("No such service",404,"logs.cpp",LINE_NUMBER);
  }

  return svc;
}


bool Xport::ServiceUserValid(const QString &svc_name)
{
  bool ret=false;

  QString sql=QString("select SERVICE_NAME from USER_SERVICE_PERMS where ")+
    "(SERVICE_NAME=\""+RDEscapeString(svc_name)+"\")&&"+
    "(USER_NAME=\""+RDEscapeString(rda->user()->name())+"\")";
  RDSqlQuery *q=new RDSqlQuery(sql);
  ret=q->first();
  delete q;

  return ret;
}


QString Xport::LogLockXml(bool result,const QString &log_name,
			  const QString &guid,const QString &username,
			  const QString &stationname,
			  const QHostAddress addr) const
{
  QString xml="";

  xml+="<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n";
  xml+="<logLock>\n";
  xml+=RDXmlField("result",result);
  xml+=RDXmlField("logName",log_name);
  if(!guid.isEmpty()) {
    xml+=RDXmlField("lockGuid",guid);
  }
  if(!username.isEmpty()) {
    xml+=RDXmlField("userName",username);
  }
  if(!stationname.isEmpty()) {
    xml+=RDXmlField("stationName",stationname);
  }
  xml+=RDXmlField("address",addr.toString());
  xml+=RDXmlField("lockTimeout",RD_LOG_LOCK_TIMEOUT);
  xml+="</logLock>\n";

  return xml;
}