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Issues (8)

Security Analysis    no request data  

This project does not seem to handle request data directly as such no vulnerable execution paths were found.

  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/Common/Node.php (7 issues)

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1
<?php
2
3
/*
4
 * This file is part of the cfdi-xml project.
5
 *
6
 * (c) Kinedu
7
 *
8
 * For the full copyright and license information, please view the LICENSE
9
 * file that was distributed with this source code.
10
 */
11
12
namespace Kinedu\CfdiXML\Common;
13
14
use DOMElement;
15
use DOMDocument;
16
use DOMNodeList;
17
18
class Node
19
{
20
    /**
21
     * Node document.
22
     *
23
     * @var DOMDocument
24
     */
25
    protected $document;
26
27
    /**
28
     * Node element.
29
     *
30
     * @var DOMElement
31
     */
32
    protected $element;
33
34
    /**
35
     * Define the parent node name.
36
     *
37
     * @var string|null
38
     */
39
    protected $parentNodeName = null;
40
41
    /**
42
     * Define the node name.
43
     *
44
     * @var string
45
     */
46
    protected $nodeName;
47
48
    /**
49
     * Node attributes.
50
     *
51
     * @var array
52
     */
53
    protected $attr = [];
54
55
    protected $outstandingReferences;
56
57
    /**
58
     * Create a new node instance.
59
     *
60
     * @param array $attr
61
     */
62
    public function __construct(array ...$attr)
63
    {
64
        $this->attr = $attr;
65
66
        $this->document = new DOMDocument('1.0', 'UTF-8');
67
        $this->document->preserveWhiteSpace = false;
68
69
        if ($nodeName = $this->getNodeName()) {
70
            $this->element = $this->document->createElement($nodeName);
71
            $this->document->appendChild($this->element);
72
            $this->setAttr($this->element, $this->getAttr());
73
        }
74
    }
75
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    /**
77
     * Add a new node.
78
     *
79
     * @param \Kinedu\CfdiXML\Common\Node $node
80
     *
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     * @return void
82
     */
83
    public function add(Node $node)
84
    {
85
        $wrapperElement = null;
86
87
        if ($node->hasOutstandingReferences()) {
88
            $schemaDefinition = $node->outstandingReferences['schema_definition'];
89
            $namespace = $node->outstandingReferences['namespace'];
90
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            $this->setSchemaDefinition($schemaDefinition);
0 ignored issues
show
It seems like $schemaDefinition defined by $node->outstandingReferences['schema_definition'] on line 88 can also be of type object<Kinedu\CfdiXML\Common\Node>; however, Kinedu\CfdiXML\Common\Node::setSchemaDefinition() does only seem to accept string, maybe add an additional type check?

If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:

/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}

If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.

Loading history...
92
            $this->setNamespace($namespace);
0 ignored issues
show
It seems like $namespace defined by $node->outstandingReferences['namespace'] on line 89 can also be of type string; however, Kinedu\CfdiXML\Common\Node::setNamespace() does only seem to accept object<Kinedu\CfdiXML\Common\Node>, maybe add an additional type check?

If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:

/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}

If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.

Loading history...
93
        }
94
95
        if (isset($node->schemaDefinition) && $node->globalSchemaLocation) {
0 ignored issues
show
The property globalSchemaLocation does not exist. Did you maybe forget to declare it?

In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:

class MyClass { }

$x = new MyClass();
$x->foo = true;

Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion:

class MyClass {
    public $foo;
}

$x = new MyClass();
$x->foo = true;
Loading history...
96
            $this->setSchemaDefinition(
97
                $node->getSchemaLocation()
0 ignored issues
show
It seems like you code against a specific sub-type and not the parent class Kinedu\CfdiXML\Common\Node as the method getSchemaLocation() does only exist in the following sub-classes of Kinedu\CfdiXML\Common\Node: Kinedu\CfdiXML\Common\Complemento, Kinedu\CfdiXML\Common\ComplementoBase, Kinedu\CfdiXML\Common\ComplementoConcepto, Kinedu\CfdiXML\Common\Complemento\IEDU, Kinedu\CfdiXML\Common\Complemento\Pago, Kinedu\CfdiXML\Common\Co...nto\TimbreFiscalDigital. Maybe you want to instanceof check for one of these explicitly?

Let’s take a look at an example:

abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the parent class:

    abstract class User
    {
        /** @return string */
        abstract public function getPassword();
    
        /** @return string */
        abstract public function getDisplayName();
    }
    
Loading history...
98
            );
99
100
            $this->setNamespace($node);
101
        }
102
103
        $nodeElement = $this->document->createElement($node->getNodeName());
104
        $this->setAttr($nodeElement, $node->getAttr());
105
106
        foreach ($node->element->childNodes as $child) {
107
            $nodeElement->appendChild(
108
                $this->document->importNode($child, true)
109
            );
110
        }
111
112
        if ($wrapperName = $node->getWrapperNodeName()) {
113
            $wrapperElement = $this->getDirectChildElementByName(
114
                $this->element->childNodes,
115
                $wrapperName
116
            );
117
118
            if (!$wrapperElement) {
119
                $wrapperElement = $this->document->createElement($wrapperName);
120
                $this->element->appendChild($wrapperElement);
121
            }
122
123
            $this->setAttr($wrapperElement, $node->getAttr('wrapper'));
124
        }
125
126
        if ($parentName = $node->getParentNodeName()) {
127
            $currentElement = ($wrapperElement) ? $wrapperElement : $this->element;
128
129
            $parentNode = $this->getDirectChildElementByName(
130
                $currentElement->childNodes,
131
                $parentName
132
            );
133
134
            if (!$parentNode) {
135
                $parentElement = $this->document->createElement($parentName);
136
                $currentElement->appendChild($parentElement);
137
                $parentElement->appendChild($nodeElement);
138
                $this->setAttr($parentElement, $node->getAttr('parent'));
139
            } else {
140
                $parentNode->appendChild($nodeElement);
141
            }
142
        } else {
143
            $this->element->appendChild($nodeElement);
144
        }
145
    }
146
147
    /**
148
     * Search the direct child of an element.
149
     *
150
     * @param DOMNodeList $children
151
     * @param string $find
152
     *
153
     * @return DOMElement|null
154
     */
155
    protected function getDirectChildElementByName(DOMNodeList $children, string $find)
156
    {
157
        foreach ($children as $child) {
158
            if ($child->nodeName == $find) {
159
                return $child;
160
            }
161
        }
162
163
        return null;
164
    }
165
166
    /**
167
     * @param  \Kinedu\CfdiXML\Common\Node  $node
168
     * @return void
169
     */
170
    public function setNamespace(Node $node)
171
    {
172
        $element = $this->element;
173
174
        if ($element->tagName == 'cfdi:Comprobante') {
175
            $namespaceKey = "xmlns:{$node->namespaceKey}";
0 ignored issues
show
The property namespaceKey does not exist. Did you maybe forget to declare it?

In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:

class MyClass { }

$x = new MyClass();
$x->foo = true;

Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion:

class MyClass {
    public $foo;
}

$x = new MyClass();
$x->foo = true;
Loading history...
176
            $namespaceValue = $node->getNamespace();
0 ignored issues
show
It seems like you code against a specific sub-type and not the parent class Kinedu\CfdiXML\Common\Node as the method getNamespace() does only exist in the following sub-classes of Kinedu\CfdiXML\Common\Node: Kinedu\CfdiXML\Common\Complemento, Kinedu\CfdiXML\Common\ComplementoBase, Kinedu\CfdiXML\Common\ComplementoConcepto, Kinedu\CfdiXML\Common\Complemento\IEDU, Kinedu\CfdiXML\Common\Complemento\Pago, Kinedu\CfdiXML\Common\Co...nto\TimbreFiscalDigital. Maybe you want to instanceof check for one of these explicitly?

Let’s take a look at an example:

abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the parent class:

    abstract class User
    {
        /** @return string */
        abstract public function getPassword();
    
        /** @return string */
        abstract public function getDisplayName();
    }
    
Loading history...
177
178
            $elementAttr = [];
179
180
            if ($element->hasAttributes()) {
181
                $lastAttrName = null;
182
183
                foreach (iterator_to_array($element->attributes) as $attr) {
184
                    if ((substr($lastAttrName, 0, 5) == 'xmlns') &&
185
                        (substr($attr->name, 0, 5) != 'xmlns')) {
186
                        $elementAttr[$namespaceKey] = $namespaceValue;
187
                    }
188
189
                    $elementAttr[$lastAttrName = $attr->name] = $attr->value;
190
191
                    $element->removeAttributeNode($attr);
192
                }
193
            }
194
195
            $this->setAttr($element, $elementAttr);
196
        } else {
197
            $this->outstandingReferences['namespace'] = $node;
198
        }
199
    }
200
201
    /**
202
     * @param  string  $schemaDefinition
203
     * @return void
204
     */
205
    public function setSchemaDefinition(string $schemaDefinition)
206
    {
207
        $attrName = 'xsi:schemaLocation';
208
209
        $node = $this->element;
210
211
        if ($node->hasAttribute($attrName)) {
212
            $value = $node->getAttribute($attrName);
213
            $value = "{$value} {$schemaDefinition}";
214
215
            $node->setAttribute($attrName, $value);
216
        } else {
217
            $this->outstandingReferences['schema_definition'] = $schemaDefinition;
218
        }
219
    }
220
221
    private function hasOutstandingReferences(): bool
222
    {
223
        return !! $this->outstandingReferences;
224
    }
225
226
    /**
227
     * Get node attributes.
228
     *
229
     * @param string $index
230
     *
231
     * @return array|null
232
     */
233
    public function getAttr(string $index = 'node')
234
    {
235
        $attrIndex = ['node', 'parent', 'wrapper'];
236
237
        $index = (in_array($index, $attrIndex))
238
            ? array_search($index, $attrIndex)
239
            : 0;
240
241
        return $this->attr[$index] ?? null;
242
    }
243
244
    /**
245
     * Adds attributes to an element.
246
     *
247
     * @param DOMElement $element
248
     * @param array $attr
249
     *
250
     * @return void
251
     */
252
    public function setAttr(DOMElement $element, array $attr = null)
253
    {
254
        if (!is_null($attr)) {
255
            foreach ($attr as $key => $value) {
256
                $element->setAttribute($key, $value);
257
            }
258
        }
259
    }
260
261
    /**
262
     * Get element.
263
     *
264
     * @return DOMElement
265
     */
266
    public function getElement(): DOMElement
267
    {
268
        return $this->element;
269
    }
270
271
    /**
272
     * Get document.
273
     *
274
     * @return DOMDocument
275
     */
276
    public function getDocument(): DOMDocument
277
    {
278
        return $this->document;
279
    }
280
281
    /**
282
     * Get wrapper node name.
283
     *
284
     * @return string|null
285
     */
286
    public function getWrapperNodeName()
287
    {
288
        return $this->wrapperNodeName ?? null;
0 ignored issues
show
The property wrapperNodeName does not seem to exist. Did you mean nodeName?

An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name.

If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading.

Loading history...
289
    }
290
291
    /**
292
     * Get parent node name.
293
     *
294
     * @return string|null
295
     */
296
    public function getParentNodeName()
297
    {
298
        return $this->parentNodeName ?? null;
299
    }
300
301
    /**
302
     * Get node name.
303
     *
304
     * @return string
305
     */
306
    public function getNodeName()
307
    {
308
        return $this->nodeName ?? null;
309
    }
310
}
311