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temp evaluation work

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odain
2025-09-02 12:23:46 +02:00
parent a587bd68eb
commit f7b5091b39
18 changed files with 438 additions and 221 deletions
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226
setup/modulediscovery/ModuleFileParser.php
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@@ -1,8 +1,11 @@
<?php
use PhpParser\ParserFactory;
use evaluation\expression\PhpExpressionEvaluator;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\Assign;
use PhpParser\ParserFactory;
require_once __DIR__ . "/evaluation/expression/PhpExpressionEvaluator.php";
class ModuleFileParser {
private static ModuleFileParser $oInstance;
@@ -72,7 +75,7 @@ class ModuleFileParser {
throw new ModuleFileReaderException("2nd parameter to SetupWebPage::AddModule not a string: " . get_class($oModuleId->value), 0, null, $sModuleFilePath);
}
$sModuleId = $oModuleId->value->value;
$sModuleId = $this->EvaluateExpression($oModuleId->value);
$oModuleConfigInfo = $aArgs[2];
if (false === ($oModuleConfigInfo instanceof PhpParser\Node\Arg)) {
@@ -84,8 +87,7 @@ class ModuleFileParser {
throw new ModuleFileReaderException("3rd parameter to SetupWebPage::AddModule not an array: " . get_class($oModuleConfigInfo->value), 0, null, $sModuleFilePath);
}
$aModuleConfig=[];
$this->FillModuleInformationFromArray($oModuleConfigInfo->value, $aModuleConfig);
$aModuleConfig = $this->EvaluateExpression($oModuleConfigInfo->value);
if (! is_array($aModuleConfig)){
throw new ModuleFileReaderException("3rd parameter to SetupWebPage::AddModule not an array: " . get_class($oModuleConfigInfo->value), 0, null, $sModuleFilePath);
@@ -98,46 +100,6 @@ class ModuleFileParser {
];
}
public function FillModuleInformationFromArray(PhpParser\Node\Expr\Array_ $oArray, array &$aModuleInformation) : void
{
$iIndex=0;
/** @var \PhpParser\Node\Expr\ArrayItem $oValue */
foreach ($oArray->items as $oArrayItem){
if ($oArrayItem->key instanceof PhpParser\Node\Scalar\String_) {
//dictionnary
$sKey = $oArrayItem->key->value;
} else if ($oArrayItem->key instanceof \PhpParser\Node\Expr\ConstFetch) {
//dictionnary
$sKey = $this->EvaluateConstantExpression($oArrayItem->key);
if (is_null($sKey)){
continue;
}
} else {
//array
$sKey = $iIndex++;
}
$oValue = $oArrayItem->value;
if ($oValue instanceof PhpParser\Node\Expr\Array_) {
$aSubConfig=[];
$this->FillModuleInformationFromArray($oValue, $aSubConfig);
$aModuleInformation[$sKey]=$aSubConfig;
continue;
}
try {
$oEvaluatuedValue = $this->EvaluateExpression($oValue);
} catch(ModuleFileReaderException $e){
//required to support legacy below dump dependency
//'dependencies' => ['itop-config-mgmt/2.0.0'||'itop-structure/3.0.0']
continue;
}
$aModuleInformation[$sKey]=$oEvaluatuedValue;
}
}
/**
* @param string $sModuleFilePath
* @param \PhpParser\Node\Stmt\If_ $oNode
@@ -192,66 +154,6 @@ class ModuleFileParser {
return null;
}
public function EvaluateConstantExpression(\PhpParser\Node\Expr\ArrayItem|\PhpParser\Node\Expr\ConstFetch $oValue) : mixed
{
return $this->UnprotectedComputeBooleanExpression($oValue->name);
}
public function EvaluateClassConstantExpression(\PhpParser\Node\Expr\ClassConstFetch $oValue) : mixed
{
$sClassName = $oValue->class->name;
$sProperty = $oValue->name->name;
if (class_exists($sClassName)){
$class = new \ReflectionClass($sClassName);
if (array_key_exists($sProperty, $class->getConstants())) {
$oReflectionConstant = $class->getReflectionConstant($sProperty);
if ($oReflectionConstant->isPublic()){
return $class->getConstant($sProperty);
}
}
}
if ('class' === $sProperty){
return $sClassName;
}
return null;
}
public function EvaluateStaticPropertyExpression(\PhpParser\Node\Expr\StaticPropertyFetch $oValue) : mixed
{
$sClassName = $oValue->class->name;
$sProperty = $oValue->name->name;
if (class_exists($sClassName)){
$class = new \ReflectionClass($sClassName);
if (array_key_exists($sProperty, $class->getStaticProperties())) {
$oReflectionProperty = $class->getProperty($sProperty);
if ($oReflectionProperty->isPublic()){
return $class->getStaticPropertyValue($sProperty);
}
}
}
return null;
}
/**
* @param string $sBooleanExpr
*
* @return mixed
* @throws ModuleFileReaderException
*/
private function UnprotectedComputeBooleanExpression(string $sBooleanExpr) : mixed
{
try{
$bResult = null;
@eval('$bResult = '.$sBooleanExpr.';');
return $bResult;
} catch (Throwable $t) {
throw new ModuleFileReaderException("Eval of '$sBooleanExpr' caused an error: ".$t->getMessage());
}
}
/**
* @param string $sBooleanExpr
*
@@ -260,121 +162,11 @@ class ModuleFileParser {
*/
public function EvaluateBooleanExpression(string $sBooleanExpr) : bool
{
$sPhpContent = <<<PHP
<?php
$sBooleanExpr;
PHP;
try{
$aNodes = $this->ParsePhpCode($sPhpContent);
$oExpr = $aNodes[0];
$oRes = $this->EvaluateExpression($oExpr->expr);
return (bool) $oRes;
} catch (Throwable $t) {
throw new ModuleFileReaderException("Eval of '$sBooleanExpr' caused an error:".$t->getMessage());
}
return PhpExpressionEvaluator::GetInstance()->ParseAndEvaluateBooleanExpression($sBooleanExpr);
}
private function GetMixedValueToString(mixed $oExpr) : string
private function EvaluateExpression(Expr $oExpression) : mixed
{
if (false === $oExpr){
return "false";
}
if (true === $oExpr){
return "true";
}
return $oExpr;
}
private function EvaluateExpression(\PhpParser\Node\Expr $oExpression) : mixed
{
if ($oExpression instanceof \PhpParser\Node\Expr\BinaryOp){
$sExpr = sprintf("%s %s %s",
$this->GetMixedValueToString($this->EvaluateExpression($oExpression->left)),
$oExpression->getOperatorSigil(),
$this->GetMixedValueToString($this->EvaluateExpression($oExpression->right))
);
//return $this->UnprotectedComputeBooleanExpression($sBooleanExpr);;
return $this->UnprotectedComputeBooleanExpression($sExpr);
}
if ($oExpression instanceof \PhpParser\Node\Expr\BooleanNot){
return ! $this->EvaluateExpression($oExpression->expr);
}
if ($oExpression instanceof \PhpParser\Node\Expr\FuncCall){
return $this->EvaluateCallFunction($oExpression);
}
if ($oExpression instanceof \PhpParser\Node\Expr\StaticCall){
return $this->EvaluateStaticCallFunction($oExpression);
}
if ($oExpression instanceof \PhpParser\Node\Expr\ConstFetch){
return $this->EvaluateConstantExpression($oExpression);
}
if ($oExpression instanceof \PhpParser\Node\Expr\ClassConstFetch) {
return $this->EvaluateClassConstantExpression($oExpression);
}
if ($oExpression instanceof \PhpParser\Node\Expr\StaticPropertyFetch) {
return $this->EvaluateStaticPropertyExpression($oExpression);
}
return $oExpression->value;
}
private function EvaluateCallFunction(\PhpParser\Node\Expr\FuncCall $oFunct) : mixed
{
$sFunction = $oFunct->name->name;
$aWhiteList = ["function_exists", "class_exists", "method_exists"];
if (! in_array($sFunction, $aWhiteList)){
throw new ModuleFileReaderException("FuncCall $sFunction not supported");
}
$aArgs=[];
foreach ($oFunct->args as $arg){
/** @var \PhpParser\Node\Arg $arg */
$aArgs[]=$arg->value->value;
}
$oReflectionFunction = new ReflectionFunction($sFunction);
return $oReflectionFunction->invoke(...$aArgs);
}
/**
* @param \PhpParser\Node\Expr\StaticCall $oStaticCall
*
* @return mixed
* @throws \ModuleFileReaderException
* @throws \ReflectionException
*/
private function EvaluateStaticCallFunction(\PhpParser\Node\Expr\StaticCall $oStaticCall) : mixed
{
$sClassName = $oStaticCall->class->name;
$sMethodName = $oStaticCall->name->name;
$aWhiteList = ["SetupInfo::ModuleIsSelected"];
$sStaticCallDescription = "$sClassName::$sMethodName";
if (! in_array($sStaticCallDescription, $aWhiteList)){
throw new ModuleFileReaderException("StaticCall $sStaticCallDescription not supported");
}
$aArgs=[];
foreach ($oStaticCall->args as $arg){
/** @var \PhpParser\Node\Arg $arg */
$aArgs[]=$arg->value->value;
}
$class = new \ReflectionClass($sClassName);
$method = $class->getMethod($sMethodName);
if (! $method->isPublic()){
throw new ModuleFileReaderException("StaticCall $sStaticCallDescription not public");
}
return $method->invokeArgs(null, $aArgs);
return PhpExpressionEvaluator::GetInstance()->EvaluateExpression($oExpression);
}
}