/** Examine the current PhpParser\Node node against the PHPSandbox configuration for whitelisting sandboxed code
*
* @param Node $node The sandboxed $node to examine
*
* @return null
*/
public function leaveNode(Node $node)
{
if ($node instanceof Node\Stmt\Class_ && is_string($node->name) && $this->sandbox->allow_classes && $this->sandbox->auto_whitelist_classes && !$this->sandbox->hasBlacklistedClasses()) {
$this->sandbox->whitelistClass($node->name);
$this->sandbox->whitelistType($node->name);
} else {
if ($node instanceof Node\Stmt\Interface_ && is_string($node->name) && $this->sandbox->allow_interfaces && $this->sandbox->auto_whitelist_interfaces && !$this->sandbox->hasBlacklistedInterfaces()) {
$this->sandbox->whitelistInterface($node->name);
} else {
if ($node instanceof Node\Stmt\Trait_ && is_string($node->name) && $this->sandbox->allow_traits && $this->sandbox->auto_whitelist_traits && !$this->sandbox->hasBlacklistedTraits()) {
$this->sandbox->whitelistTrait($node->name);
} else {
if ($node instanceof Node\Expr\FuncCall && $node->name instanceof Node\Name && $node->name->toString() == 'define' && $this->sandbox->allow_constants && $this->sandbox->auto_whitelist_constants && !$this->sandbox->isDefinedFunc('define') && !$this->sandbox->hasBlacklistedConsts()) {
$name = isset($node->args[0]) ? $node->args[0] : null;
if ($name && $name instanceof Node\Arg && $name->value instanceof Node\Scalar\String_ && is_string($name->value->value) && $name->value->value) {
$this->sandbox->whitelistConst($name->value->value);
}
} else {
if ($node instanceof Node\Stmt\Global_ && $this->sandbox->allow_globals && $this->sandbox->auto_whitelist_globals && $this->sandbox->hasWhitelistedVars()) {
foreach ($node->vars as $var) {
/**
* @var Node\Expr\Variable $var
*/
if ($var instanceof Node\Expr\Variable) {
$this->sandbox->whitelistVar($var->name);
}
}
} else {
if ($node instanceof Node\Stmt\Function_ && is_string($node->name) && $node->name && $this->sandbox->allow_functions && $this->sandbox->auto_whitelist_functions && !$this->sandbox->hasBlacklistedFuncs()) {
$this->sandbox->whitelistFunc($node->name);
}
}
}
}
}
}
}