Issues in GenericVisitor.php (master) - Issues in master - K-Phoen/rulerz - Measure and Improve Code Quality continuously with Scrutinizer

Issues (35)

Security Analysis no request data

Cross-Site Scripting

Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.

File Exposure

File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.

File Manipulation

File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.

Object Injection

Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.

Code Injection

Code Injection enables an attacker to execute arbitrary code on the server.

Response Splitting

Response Splitting can be used to send arbitrary responses.

File Inclusion

File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.

Command Injection

Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.

SQL Injection

SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.

XPath Injection

XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.

LDAP Injection

LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.

Header Injection

Other Vulnerability

This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.

Regex Injection

Regex Injection enables an attacker to execute arbitrary code in your PHP process.

XML Injection

XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.

Variable Injection

Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.

Unfortunately, the security analysis is currently not available for your project. If you are a non-commercial open-source project, please contact support to gain access.

src/Target/GenericVisitor.php (2 issues)

Labels

Severity

Upgrade to new PHP Analysis Engine

These results are based on our legacy PHP analysis, consider migrating to our new PHP analysis engine instead. Learn more

<?php

declare(strict_types=1);

namespace RulerZ\Target;

use Hoa\Ruler\Model as AST;
use Hoa\Visitor\Element as VisitorElement;

use RulerZ\Compiler\RuleVisitor;
use RulerZ\Exception\OperatorNotFoundException;
use RulerZ\Model;
use RulerZ\Target\Operators\Definitions as OperatorsDefinitions;

/**
 * Generic visitor intended to be extended.
 */
abstract class GenericVisitor implements RuleVisitor
{
    /**
     * @var OperatorsDefinitions
     */
    protected $operators;

    /**
     * {@inheritdoc}
     *
     * @note The aim of this method is to be overriden.
     */
    public function getCompilationData(): array
    {
        return [];
    }

    public function __construct(OperatorsDefinitions $operators)
    {
        $this->operators = $operators;
    }

    /**
     * {@inheritdoc}
     */
    public function visit(VisitorElement $element, &$handle = null, $eldnah = null)

    {
        if ($element instanceof Model\Rule) {
            return $this->visitModel($element, $handle, $eldnah);
        }

        if ($element instanceof AST\Operator) {
            return $this->visitOperator($element, $handle, $eldnah);
        }

        if ($element instanceof AST\Bag\Scalar) {
            return $this->visitScalar($element, $handle, $eldnah);
        }

        if ($element instanceof AST\Bag\RulerArray) {
            return $this->visitArray($element, $handle, $eldnah);
        }

        if ($element instanceof AST\Bag\Context) {
            return $this->visitAccess($element, $handle, $eldnah);
        }

        if ($element instanceof Model\Parameter) {
            return $this->visitParameter($element, $handle, $eldnah);
        }

        throw new \LogicException(sprintf('Element of type "%s" not handled', get_class($element)));
    }

    /**
     * {@inheritdoc}
     */
    public function visitModel(AST\Model $element, &$handle = null, $eldnah = null)
    {
        return $element->getExpression()->accept($this, $handle, $eldnah);
    }

    /**
     * {@inheritdoc}
     */
    public function visitScalar(AST\Bag\Scalar $element, &$handle = null, $eldnah = null)
    {
        return var_export($element->getValue(), true);
    }

    /**
     * {@inheritdoc}
     */
    public function visitArray(AST\Bag\RulerArray $element, &$handle = null, $eldnah = null)
    {
        return array_map(function ($item) use (&$handle, $eldnah) {
            return $item->accept($this, $handle, $eldnah);
        }, $element->getArray());
    }

    /**
     * {@inheritdoc}
     */
    public function visitOperator(AST\Operator $element, &$handle = null, $eldnah = null)
    {
        $operatorName = $element->getName();

        // the operator does not exist at all, throw an error before doing anything else.
        if (!$this->operators->hasInlineOperator($operatorName) && !$this->operators->hasOperator($operatorName)) {
            throw new OperatorNotFoundException($operatorName, sprintf('Operator "%s" does not exist.', $operatorName));
        }

        // expand the arguments
        $arguments = array_map(function ($argument) use (&$handle, $eldnah) {
            return $argument->accept($this, $handle, $eldnah);
        }, $element->getArguments());

        // and either inline the operator call
        if ($this->operators->hasInlineOperator($operatorName)) {
            $callable = $this->operators->getInlineOperator($operatorName);

            return call_user_func_array($callable, $arguments);
        }

        $inlinedArguments = empty($arguments) ? '' : ', '.implode(', ', $arguments);

        // or defer it.
        return sprintf('call_user_func($operators["%s"]%s)', $operatorName, $inlinedArguments);
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace RulerZ\Target;
6
7		use Hoa\Ruler\Model as AST;
8		use Hoa\Visitor\Element as VisitorElement;
9
10		use RulerZ\Compiler\RuleVisitor;
11		use RulerZ\Exception\OperatorNotFoundException;
12		use RulerZ\Model;
13		use RulerZ\Target\Operators\Definitions as OperatorsDefinitions;
14
15		/**
16		* Generic visitor intended to be extended.
17		*/
18		abstract class GenericVisitor implements RuleVisitor
19		{
20		/**
21		* @var OperatorsDefinitions
22		*/
23		protected $operators;
24
25		/**
26		* {@inheritdoc}
27		*
28		* @note The aim of this method is to be overriden.
29		*/
30		public function getCompilationData(): array
31		{
32		return [];
33		}
34
35		public function __construct(OperatorsDefinitions $operators)
36		{
37		$this->operators = $operators;
38		}
39
40		/**
41		* {@inheritdoc}
42		*/
43	View Code Duplication	public function visit(VisitorElement $element, &$handle = null, $eldnah = null)
		0 ignored issues – show Duplication introduced 2017-08-09 22:21 UTC by Report Bug Copy Issue Report Show Similar Issues like this This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
44		{
45		if ($element instanceof Model\Rule) {
46		return $this->visitModel($element, $handle, $eldnah);
47		}
48
49		if ($element instanceof AST\Operator) {
50		return $this->visitOperator($element, $handle, $eldnah);
51		}
52
53		if ($element instanceof AST\Bag\Scalar) {
54		return $this->visitScalar($element, $handle, $eldnah);
55		}
56
57		if ($element instanceof AST\Bag\RulerArray) {
58		return $this->visitArray($element, $handle, $eldnah);
59		}
60
61		if ($element instanceof AST\Bag\Context) {
62		return $this->visitAccess($element, $handle, $eldnah);
63		}
64
65		if ($element instanceof Model\Parameter) {
66		return $this->visitParameter($element, $handle, $eldnah);
67		}
68
69		throw new \LogicException(sprintf('Element of type "%s" not handled', get_class($element)));
70		}
71
72		/**
73		* {@inheritdoc}
74		*/
75		public function visitModel(AST\Model $element, &$handle = null, $eldnah = null)
76		{
77		return $element->getExpression()->accept($this, $handle, $eldnah);
78		}
79
80		/**
81		* {@inheritdoc}
82		*/
83		public function visitScalar(AST\Bag\Scalar $element, &$handle = null, $eldnah = null)
84		{
85		return var_export($element->getValue(), true);
86		}
87
88		/**
89		* {@inheritdoc}
90		*/
91		public function visitArray(AST\Bag\RulerArray $element, &$handle = null, $eldnah = null)
92		{
93		return array_map(function ($item) use (&$handle, $eldnah) {
94		return $item->accept($this, $handle, $eldnah);
95		}, $element->getArray());
96		}
97
98		/**
99		* {@inheritdoc}
100		*/
101		public function visitOperator(AST\Operator $element, &$handle = null, $eldnah = null)
102		{
103		$operatorName = $element->getName();
104
105		// the operator does not exist at all, throw an error before doing anything else.
106		if (!$this->operators->hasInlineOperator($operatorName) && !$this->operators->hasOperator($operatorName)) {
107		throw new OperatorNotFoundException($operatorName, sprintf('Operator "%s" does not exist.', $operatorName));
108		}
109
110		// expand the arguments
111		$arguments = array_map(function ($argument) use (&$handle, $eldnah) {
112		return $argument->accept($this, $handle, $eldnah);
113		}, $element->getArguments());
114
115		// and either inline the operator call
116		if ($this->operators->hasInlineOperator($operatorName)) {
117		$callable = $this->operators->getInlineOperator($operatorName);
118
119		return call_user_func_array($callable, $arguments);
120		}
121
122		$inlinedArguments = empty($arguments) ? '' : ', '.implode(', ', $arguments);
123
124		// or defer it.
125		return sprintf('call_user_func($operators["%s"]%s)', $operatorName, $inlinedArguments);
		0 ignored issues – show Bug Best Practice introduced 2016-10-14 11:56 UTC by Report Bug Copy Issue Report Show Similar Issues like this The return type of `return sprintf('call_use...me, $inlinedArguments);` (`string`) is incompatible with the return type declared by the interface `RulerZ\Compiler\RuleVisitor::visitOperator` of type `Hoa\Consistency\Xcallable`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
126		}
127		}
128

K-Phoen / rulerz

Issues (35)

Security Analysis no request data

src/Target/GenericVisitor.php (2 issues)

Labels

Severity

Introduced By

Upgrade to new PHP Analysis Engine

Duplication Side-by-Side

Filter issues like