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c2d2fa485f68c14ab0792fd998e75d7dc70e63da
luos/workflow/engine/classes/class.pmScript.php

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initial commit from rev. 632
2010-12-02 23:34:41 +00:00
<?php
/**
* class.pmScript.php
*
* ProcessMaker Open Source Edition
* Copyright (C) 2004 - 2008 Colosa Inc.23
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* For more information, contact Colosa Inc, 2566 Le Jeune Rd.,
* Coral Gables, FL, 33134, USA, or email info@colosa.com.
*
*/
////////////////////////////////////////////////////
// Execute and evaluate PMScripts
//
// Copyright (C) 2007 COLOSA
//
// License: LGPL, see LICENSE
////////////////////////////////////////////////////
/**
* PMScript - PMScript class
* @package ProcessMaker
* @author Julio Cesar Laura Avenda<EFBFBD>o <juliocesar@colosa.com>
* @last modify 2008.08.13 by Erik Amaru Ortiz <erik@colosa.com>
* @last modify comment was added and adapted the catch errors
* @copyright 2007 COLOSA
*/
function __autoload($sClassName)
{
if (defined('SYS_SYS')) {
$sPath = PATH_DB . SYS_SYS . PATH_SEP . 'classes' . PATH_SEP;
if (file_exists($sPath . $sClassName . '.php')) {
require_once $sPath . $sClassName . '.php';
}
}
}
//Start - Custom functions
G::LoadClass('pmFunctions');
//End - Custom functions
//call plugin
if (class_exists('folderData')) {
//$folderData = new folderData($sProUid, $proFields['PRO_TITLE'], $sAppUid, $Fields['APP_TITLE'], $sUsrUid);
$oPluginRegistry = &PMPluginRegistry::getSingleton();
$aAvailablePmFunctions = $oPluginRegistry->getPmFunctions();
foreach ($aAvailablePmFunctions as $key => $class ) {
$filePlugin = PATH_PLUGINS . $class . PATH_SEP . 'classes' . PATH_SEP . 'class.pmFunctions.php';
if ( file_exists ( $filePlugin ) )
include_once( $filePlugin);
}
}
//end plugin
//Add External Triggers
$dir=G::ExpandPath( "classes" ).'triggers';
$filesArray=array();
if (file_exists($dir)){
if ($handle = opendir($dir)) {
while (false !== ($file = readdir($handle))) {
if(($file!=".")&&($file!="..")){
$extFile =explode(".",$file);
if($extFile[sizeof($extFile)-1] == 'php')
include_once( $dir.PATH_SEP.$file);
}
}
closedir($handle);
}
}
/**
* PMScript - PMScript class
* @copyright 2007 COLOSA
*/
class PMScript
{
/**
* Original fields
*/
var $aOriginalFields = array();
/**
* Fields to use
*/
var $aFields = array();
/**
* Script
*/
var $sScript = '';
/**
* Error has happened?
*/
var $bError = false;
/**
* Affected fields
*/
var $affected_fields;
/**
* Constructor of the class PMScript
* @return void
*/
function PMScript()
{
$this->aFields['__ERROR__'] = 'none';
}
/**
* Set the fields to use
* @param array $aFields
* @return void
*/
function setFields($aFields = array())
{
if (!is_array($aFields)) {
$aFields = array();
}
$this->aOriginalFields = $this->aFields = $aFields;
}
/**
* Set the current script
* @param string $sScript
* @return void
*/
function setScript($sScript = '')
{
$this->sScript = $sScript;
}
/**
* Verify the syntax
* @param string $sScript
* @return boolean
*/
function validSyntax($sScript)
{
return true;
}
function executeAndCatchErrors($sScript, $sCode) {
ob_start('handleFatalErrors');
set_error_handler('handleErrors');
$_SESSION['_CODE_'] = $sCode;
eval($sScript);
unset($_SESSION['_CODE_']);
ob_end_flush();
}
/**
* Execute the current script
* @return void
*/
function execute()
{
$sScript = "";
$iAux = 0;
$bEqual = false;
$iOcurrences = preg_match_all('/\@(?:([\@\%\#\?\$\=])([a-zA-Z\_]\w*)|([a-zA-Z\_][\w\-\>\:]*)\(((?:[^\\\\\)]*(?:[\\\\][\w\W])?)*)\))((?:\s*\[[\'"]?\w+[\'"]?\])+)?/', $this->sScript, $aMatch, PREG_PATTERN_ORDER | PREG_OFFSET_CAPTURE);
if ($iOcurrences){
for($i = 0; $i < $iOcurrences; $i++){
$sAux = substr($this->sScript, $iAux, $aMatch[0][$i][1] - $iAux);
if (!$bEqual){
if (strpos($sAux, '==') !== false){
$bEqual = false;
}
else {
if (strpos($sAux, '=') !== false){
$bEqual = true;
}
}
}
if ($bEqual){
if (strpos($sAux, ';') !== false){
$bEqual = false;
}
}
if ($bEqual) {
if (!isset($aMatch[5][$i][0])) {
eval("if (!isset(\$this->aFields['" . $aMatch[2][$i][0] . "'])) { \$this->aFields['" . $aMatch[2][$i][0] . "'] = null; }");
}
else {
eval("if (!isset(\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . ")) { \$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . " = null; }");
}
}
$sScript .= $sAux;
$iAux = $aMatch[0][$i][1] + strlen($aMatch[0][$i][0]);
switch ($aMatch[1][$i][0])
{ case '@':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "pmToString(\$this->aFields['" . $aMatch[2][$i][0] . "'])";
}
else {
$sScript .= "pmToString(\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . ")";
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
case '%':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "pmToInteger(\$this->aFields['" . $aMatch[2][$i][0] . "'])";
}
else {
$sScript .= "pmToInteger(\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . ")";
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
case '#':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "pmToFloat(\$this->aFields['" . $aMatch[2][$i][0] . "'])";
}
else {
$sScript .= "pmToFloat(\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . ")";
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
case '?':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "pmToUrl(\$this->aFields['" . $aMatch[2][$i][0] . "'])";
}
else {
$sScript .= "pmToUrl(\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . ")";
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
case '$':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "pmSqlEscape(\$this->aFields['" . $aMatch[2][$i][0] . "'])";
}
else {
$sScript .= "pmSqlEscape(\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . ")";
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
case '=':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
}
$this->affected_fields[] = $aMatch[2][$i][0];
}
}
$sScript .= substr($this->sScript, $iAux);
$sScript = "try {\n" . $sScript . "\n} catch (Exception \$oException) {\n \$this->aFields['__ERROR__'] = utf8_encode(\$oException->getMessage());\n}";
//echo '<pre>-->'; print_r($this->aFields); echo '<---</pre>';
$this->executeAndCatchErrors($sScript, $this->sScript);
for($i=0; $i<count($this->affected_fields); $i++){
$_SESSION['TRIGGER_DEBUG']['DATA'][] = Array(
'key' => $this->affected_fields[$i],
'value' => isset($this->aFields[$this->affected_fields[$i]]) ? $this->aFields[$this->affected_fields[$i]] : ''
);
}
//echo '<pre>-->'; print_r($_SESSION['TRIGGER_DEBUG']['DATA']); echo '<---</pre>';
}
/**
* Evaluate the current script
* @return void
*/
function evaluate()
{
$bResult = null;
$sScript = '';
$iAux = 0;
$bEqual = false;
$variableIsDefined = true;
$iOcurrences = preg_match_all('/\@(?:([\@\%\#\?\$\=])([a-zA-Z\_]\w*)|([a-zA-Z\_][\w\-\>\:]*)\(((?:[^\\\\\)]*(?:[\\\\][\w\W])?)*)\))((?:\s*\[[\'"]?\w+[\'"]?\])+)?/', $this->sScript, $aMatch, PREG_PATTERN_ORDER | PREG_OFFSET_CAPTURE);
if ($iOcurrences){
for($i = 0; $i < $iOcurrences; $i++){
// if the variables for that condition has not been previously defined then $variableIsDefined is set to false
if (!isset($this->aFields[$aMatch[2][$i][0]])){
// $variableIsDefined = false;
$this->aFields[$aMatch[2][$i][0]] = '';
}
$sAux = substr($this->sScript, $iAux, $aMatch[0][$i][1] - $iAux);
if (!$bEqual){
if (strpos($sAux, '=') !== false){
$bEqual = true;
}
}
if ($bEqual){
if (strpos($sAux, ';') !== false)
{
$bEqual = false;
}
}
$sScript .= $sAux;
$iAux = $aMatch[0][$i][1] + strlen($aMatch[0][$i][0]);
switch ($aMatch[1][$i][0]){
case '@':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "pmToString(\$this->aFields['" . $aMatch[2][$i][0] . "'])";
}
else {
$sScript .= "pmToString(\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . ")";
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
case '%':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "pmToInteger(\$this->aFields['" . $aMatch[2][$i][0] . "'])";
}
else {
$sScript .= "pmToInteger(\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . ")";
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
case '#':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "pmToFloat(\$this->aFields['" . $aMatch[2][$i][0] . "'])";
}
else {
$sScript .= "pmToFloat(\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . ")";
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
case '?':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "pmToUrl(\$this->aFields['" . $aMatch[2][$i][0] . "'])";
}
else {
$sScript .= "pmToUrl(\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . ")";
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
case '$':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "pmSqlEscape(\$this->aFields['" . $aMatch[2][$i][0] . "'])";
}
else {
$sScript .= "pmSqlEscape(\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0] . ")";
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
case '=':
if ($bEqual){
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
else{
if (!isset($aMatch[5][$i][0])) {
$sScript .= "\$this->aFields['" . $aMatch[2][$i][0] . "']";
}
else {
$sScript .= "\$this->aFields" . (isset($aMatch[2][$i][0]) ? "['" . $aMatch[2][$i][0] . "']" : '') . $aMatch[5][$i][0];
}
}
break;
}
}
}
$sScript .= substr($this->sScript, $iAux);
$sScript = '$bResult = ' . $sScript . ';';
// checks if the syntax is valid or if the variables in that condition has been previously defined
if ($this->validSyntax($sScript)&&$variableIsDefined){
$this->bError = false;
eval($sScript);
}
else{
// echo "<script> alert('".G::loadTranslation('MSG_CONDITION_NOT_DEFINED')."'); </script>";
G::SendTemporalMessage('MSG_CONDITION_NOT_DEFINED', 'error', 'labels');
$this->bError = true;
}
return $bResult;
}
}
//Start - Private functions
/**
* Convert to string
* @param variant $vValue
* @return string
*/
function pmToString($vValue)
{
return (string)$vValue;
}
/**
* Convert to integer
* @param variant $vValue
* @return integer
*/
function pmToInteger($vValue)
{
return (int)$vValue;
}
/**
* Convert to float
* @param variant $vValue
* @return float
*/
function pmToFloat($vValue)
{
return (float)$vValue;
}
/**
* Convert to Url
* @param variant $vValue
* @return url
*/
function pmToUrl($vValue)
{
return urlencode($vValue);
}
/**
* Convert to data base escaped string
* @param variant $vValue
* @return string
*/
function pmSqlEscape($vValue)
{
return G::sqlEscape($vValue);
}
//End - Private functions
/***************************************************************************
* Error handler
* @author: Julio Cesar Laura Avenda<EFBFBD>o <juliocesar@colosa.com>
* @date: 2009-10-01
***************************************************************************/
/*
* Convert to data base escaped string
* @param string $errno
* @param string $errstr
* @param string $errfile
* @param string $errline
* @return void
*/
function handleErrors($errno, $errstr, $errfile, $errline)
{
if ($errno != '' && ($errno != 8) && ($errno != 2048)) {
if( isset($_SESSION['_CODE_']) ){
$sCode = $_SESSION['_CODE_'];
unset($_SESSION['_CODE_']);
registerError(1, $errstr, $errline - 1, $sCode);
}
}
}
/*
* Handle Fatal Errors
* @param variant $buffer
* @return buffer
*/
function handleFatalErrors($buffer)
{
if (ereg('(error</b>:)(.+)(<br)', $buffer, $regs)) {
$err = preg_replace('/<.*?>/', '', $regs[2]);
$aAux = explode(' in ', $err);
$sCode = $_SESSION['_CODE_'];
unset($_SESSION['_CODE_']);
registerError(2, $aAux[0], 0, $sCode);
if (strpos($_SERVER['REQUEST_URI'], '/cases/cases_Step') !== false) {
if (strpos($_SERVER['REQUEST_URI'], '&ACTION=GENERATE') !== false) {
G::LoadClass('case');
$oCase = new Cases();
$aNextStep = $oCase->getNextStep($_SESSION['PROCESS'], $_SESSION['APPLICATION'], $_SESSION['INDEX'], $_SESSION['STEP_POSITION']);
if($_SESSION['TRIGGER_DEBUG']['ISSET']) {
$_SESSION['TRIGGER_DEBUG']['TIME'] = 'AFTER';
$_SESSION['TRIGGER_DEBUG']['BREAKPAGE'] = $aNextStep['PAGE'];
$aNextStep['PAGE'] = $aNextStep['PAGE'].'&breakpoint=triggerdebug';
}
G::header('Location: ' . $aNextStep['PAGE']);
die;
}
$_SESSION['_NO_EXECUTE_TRIGGERS_'] = 1;
G::header('Location: ' . $_SERVER['REQUEST_URI']);
die;
}
else {
G::LoadClass('case');
$oCase = new Cases();
$aNextStep = $oCase->getNextStep($_SESSION['PROCESS'], $_SESSION['APPLICATION'], $_SESSION['INDEX'], $_SESSION['STEP_POSITION']);
if($_SESSION['TRIGGER_DEBUG']['ISSET']) {
$_SESSION['TRIGGER_DEBUG']['TIME'] = 'AFTER';
$_SESSION['TRIGGER_DEBUG']['BREAKPAGE'] = $aNextStep['PAGE'];
$aNextStep['PAGE'] = $aNextStep['PAGE'].'&breakpoint=triggerdebug';
}
if (strpos($aNextStep['PAGE'], 'TYPE=ASSIGN_TASK&UID=-1') !== false) {
G::SendMessageText('Fatal error in trigger', 'error');
}
G::header('Location: ' . $aNextStep['PAGE']);
die;
}
}
return $buffer;
}
/*
* Register Error
* @param string $iType
* @param string $sError
* @param string $iLine
* @param string $sCode
* @return void
*/
function registerError($iType, $sError, $iLine, $sCode)
{
$sType = ($iType == 1 ? 'ERROR' : 'FATAL');
$_SESSION['TRIGGER_DEBUG']['ERRORS'][][$sType] = $sError . ($iLine > 0 ? ' (line ' . $iLine . ')' : '') . ':<br /><br />' . $sCode;
}
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