ModelValidator::getFieldValue() - Code Metrics - Inspection of "Rework csrf protection, typos, etc features" - phpffcms/ffcms-core - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( f2cd13...82e8ab )

by Mihail

created 2016-07-03 08:15 UTC

ModelValidator::getFieldValue() C

↳ Parent: ModelValidator

Complexity

Conditions	7
Paths	16

Size

Total Lines	26
Code Lines	14

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	0	Features	1

Metric	Value
c	2
b	0
f	1
dl	0
loc	26
rs	6.7272
cc	7
eloc	14
nc	16
nop	3

<?php

namespace Ffcms\Core\Traits;


use Ffcms\Core\App;
use Ffcms\Core\Exception\SyntaxException;
use Ffcms\Core\Filter\Native;
use Ffcms\Core\Helper\Type\Obj;
use Ffcms\Core\Helper\Type\Str;
use Dflydev\DotAccessData\Data as DotData;

/**
 * Class ModelValidator. Extended realisation of model field validation
 * @package Ffcms\Core\Traits
 */
trait ModelValidator
{
    protected $_badAttr;
    protected $_sendMethod = 'POST';

    protected $_formName;

    public $_tokenRequired = false;
    protected $_tokenOk = true;

    /**
     * Initialize validator. Set csrf protection token from request data if available.
     * @param bool $csrf
     */
    public function initialize($csrf = false)
    {
        $this->_tokenRequired = $csrf;
        if ($csrf === true) {
            // get current token value from session
            $currentToken = App::$Session->get('_csrf_token', false);
            // set new token value to session
            $newToken = Str::randomLatinNumeric(mt_rand(32, 64));
            App::$Session->set('_csrf_token', $newToken);
            // if request is submited for this model - try to validate input data
            if ($this->send()) {
                // token is wrong - update bool state
                if ($currentToken !== $this->getRequest('_csrf_token', 'all')) {
                    $this->_tokenOk = false;
                }
            }
            // set token data to display
            $this->_csrf_token = $newToken;
class MyClass { }

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

    /**
     * Start validation for defined fields in rules() model method.
     * @param array|null $rules
     * @return bool
     * @throws SyntaxException
     */
    public function runValidate(array $rules = null)
    {
        // skip validation on empty rules
        if ($rules === null || !Obj::isArray($rules)) {
            return true;
        }

        $success = true;
        // list each rule as single one
        foreach ($rules as $rule) {
            // 0 = field (property) name, 1 = filter name, 2 = filter value
            if ($rule[0] === null || $rule[1] === null) {
                continue;
            }

            // check if target field defined as array and make recursive validation
            if (Obj::isArray($rule[0])) {
                $validate_foreach = true;
                foreach ($rule[0] as $field_name) {
                    // end false condition
                    if (!$this->validateRecursive($field_name, $rule[1], $rule[2], $rule[3], $rule[4])) {
                        $validate_foreach = false;
                    }
                }
                // assign total
                $validate = $validate_foreach;
            } else {
                $validate = $this->validateRecursive($rule[0], $rule[1], $rule[2], $rule[3], $rule[4]);
            }

            // do not change condition on "true" check's (end-false-condition)
            if ($validate === false) {
                $success = false;
            }
        }

        return $success;
    }

    /**
     * Try to recursive validate field by defined rules and set result to model properties if validation is successful passed
     * @param string|array $field_name
     * @param string $filter_name
     * @param mixed $filter_argv
     * @param bool $html
     * @param bool $secure
     * @return bool
     * @throws SyntaxException
     */
    public function validateRecursive($field_name, $filter_name, $filter_argv, $html = false, $secure = false)
    {
        // check if we got it from form defined request method
        if (App::$Request->getMethod() !== $this->_sendMethod) {
            return false;
        }

        // get field value from user input data
        $field_value = $this->getFieldValue($field_name, $html, $secure);


        $check = false;
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
        // maybe no filter required?
        if ($filter_name === 'used') {
            $check = true;
        } elseif (Str::contains('::', $filter_name)) { // sounds like a callback class::method::method
            // string to array via delimiter ::
            $callbackArray = explode('::', $filter_name);
            // first item is a class name
            $class = array_shift($callbackArray);
            // last item its a function
            $method = array_pop($callbackArray);
            // left any items? maybe post-static callbacks?
            if (count($callbackArray) > 0) {
                foreach ($callbackArray as $obj) {
                    if (Str::startsWith('$', $obj) && property_exists($class, ltrim($obj, '$'))) { // sounds like a variable
                        $obj = ltrim($obj, '$'); // trim variable symbol '$'
                        $class = $class::$$obj; // make magic :)
                    } elseif (method_exists($class, $obj)) { // maybe its a function?
                        $class = $class::$obj; // call function
                    } else {
                        throw new SyntaxException('Filter callback execution failed: ' . $filter_name);
                    }

                }
            }

            // check is endpoint method exist
            if (method_exists($class, $method)) {
                $check = @$class::$method($field_value, $filter_argv);
            } else {
                throw new SyntaxException('Filter callback execution failed: ' . $filter_name);
            }
        } elseif (method_exists('Ffcms\Core\Filter\Native', $filter_name)) { // only full namespace\class path based :(
            if ($filter_argv != null) {
                $check = Native::$filter_name($field_value, $filter_argv);
            } else {
                $check = Native::$filter_name($field_value);
            }
        } else {
            throw new SyntaxException('Filter "' . $filter_name . '" is not exist');
        }
        if ($check !== true) { // switch only on fail check.
            $this->_badAttr[] = $field_name;
        } else {
            $field_set_name = $field_name;
            // prevent array-type setting
            if (Str::contains('.', $field_set_name)) {
                $field_set_name = strstr($field_set_name, '.', true);
            }
            if (property_exists($this, $field_set_name)) {
                if ($field_name !== $field_set_name) { // array-based property
                    $dot_path = trim(strstr($field_name, '.'), '.');
                    // prevent throws any exceptions for null and false objects
                    if (!Obj::isArray($this->{$field_set_name})) {
                        $this->{$field_set_name} = [];
                    }
                    // use dot-data provider to compile output array
                    $dotData = new DotData($this->{$field_set_name});
                    $dotData->set($dot_path, $field_value); // todo: check me!!! Here can be bug of fail parsing dots and passing path-value
                    // export data from dot-data lib to model property
                    $this->{$field_set_name} = $dotData->export();
                } else { // just single property
                    $this->{$field_name} = $field_value; // refresh model property's from post data
                }
            }
        }
        return $check;
    }

    /**
     * Get field value from input POST/GET/AJAX data with defined security level (html - safe html, !secure = fully unescaped)
     * @param string $field_name
     * @param bool $html
     * @param bool $secure
     * @return array|null|string
     * @throws \InvalidArgumentException
     */
    private function getFieldValue($field_name, $html = false, $secure = false)
    {
        // get type of input data (where we must look it up)
        $sources = [];
        $inputType = Str::lowerCase($this->_sendMethod);
        // check input data type. Maybe file or input (text)
        if (method_exists($this, 'sources')) {
            $sources = $this->sources();
trait Idable {
    public function equalIds(Idable $other) {
        return $this->getId() === $other->getId();
    }
}
        }

        if (Obj::isArray($sources) && array_key_exists($field_name, $sources)) {
            $inputType = Str::lowerCase($sources[$field_name]);
        }

        $field_value = $this->getRequest($field_name, $inputType);
        // apply html security filter for input data
        if ($inputType !== 'file') {
            if ($html !== true) {
                $field_value = App::$Security->strip_tags($field_value);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
            } elseif($secure !== true) {
                $field_value = App::$Security->secureHtml($field_value);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

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

        return $field_value;
    }

    /**
     * Get fail validation attributes as array if exist
     * @return null|array
     */
    public function getBadAttribute()
    {
        return $this->_badAttr;
    }

    /**
     * Set model send method type. Allowed: post, get
     * @param string $acceptMethod
     */
    final public function setSubmitMethod($acceptMethod)
    {
        $this->_sendMethod = Str::upperCase($acceptMethod);
    }

    /**
     * Get model submit method. Allowed: post, get
     * @return string
     */
    final public function getSubmitMethod()
    {
        return $this->_sendMethod;
    }

    /**
     * Check if model get POST-based request as submit of SEND data
     * @return bool
     * @throws \InvalidArgumentException
     */
    final public function send()
    {
        if (!Str::equalIgnoreCase($this->_sendMethod, App::$Request->getMethod())) {
            return false;
        }

        return $this->getRequest('submit', $this->_sendMethod) !== null;
    }

    /**
     * Form default name (used in field building)
     * @return string
     */
    public function getFormName()
    {
        if ($this->_formName === null) {
            $cname = get_class($this);
            $this->_formName = substr($cname, strrpos($cname, '\\') + 1);
        }

        return $this->_formName;
    }

    /**
     * @deprecated
     * Get input params GET/POST/PUT method
     * @param string $param
     * @return string|null
     */
    public function getInput($param)
    {
        return $this->getRequest($param, $this->_sendMethod);
    }

    /**
     * @deprecated
     * Get uploaded file from user via POST request
     * @param string $param
     * @return \Symfony\Component\HttpFoundation\File\UploadedFile|null
     */
    public function getFile($param)
    {
        return $this->getRequest($param, 'file');
    }

    /**
     * Get input param for current model form based on param name and request method
     * @param string $param
     * @param string|null $method
     * @return string|null|array
     * @throws \InvalidArgumentException
     */
    public function getRequest($param, $method = null)
    {
        // build param query for http foundation request
        $paramQuery = $this->getFormName();
        if (Str::contains('.', $param)) {
            foreach (explode('.', $param) as $item) {
                $paramQuery .= '[' . $item . ']';
            }
        } else {
            $paramQuery .= '[' . $param . ']';
        }

        if ($method === null) {
            $method = $this->_sendMethod;
        }

        // get request based on method and param query
        $method = Str::lowerCase($method);
        switch ($method) {
            case 'get':
                return App::$Request->query->get($paramQuery, null, true);
            case 'post':
                return App::$Request->request->get($paramQuery, null, true);
            case 'file':
                return App::$Request->files->get($paramQuery, null, true);
            default:
                return App::$Request->get($paramQuery, null, true);

        }
    }
}

1			<?php
2
3			namespace Ffcms\Core\Traits;
4
5
6			use Ffcms\Core\App;
7			use Ffcms\Core\Exception\SyntaxException;
8			use Ffcms\Core\Filter\Native;
9			use Ffcms\Core\Helper\Type\Obj;
10			use Ffcms\Core\Helper\Type\Str;
11			use Dflydev\DotAccessData\Data as DotData;
12
13			/**
14			* Class ModelValidator. Extended realisation of model field validation
15			* @package Ffcms\Core\Traits
16			*/
17			trait ModelValidator
18			{
19			protected $_badAttr;
20			protected $_sendMethod = 'POST';
21
22			protected $_formName;
23
24			public $_tokenRequired = false;
25			protected $_tokenOk = true;
26
27			/**
28			* Initialize validator. Set csrf protection token from request data if available.
29			* @param bool $csrf
30			*/
31			public function initialize($csrf = false)
32			{
33			$this->_tokenRequired = $csrf;
34			if ($csrf === true) {
35			// get current token value from session
36			$currentToken = App::$Session->get('_csrf_token', false);
37			// set new token value to session
38			$newToken = Str::randomLatinNumeric(mt_rand(32, 64));
39			App::$Session->set('_csrf_token', $newToken);
40			// if request is submited for this model - try to validate input data
41			if ($this->send()) {
42			// token is wrong - update bool state
43			if ($currentToken !== $this->getRequest('_csrf_token', 'all')) {
44			$this->_tokenOk = false;
45			}
46			}
47			// set token data to display
48			$this->_csrf_token = $newToken;
			0 ignored issues – show Bug introduced 2016-07-03 08:18 UTC by Report Bug Copy Issue Report The property `_csrf_token` 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...
49			}
50			}
51
52			/**
53			* Start validation for defined fields in rules() model method.
54			* @param array\|null $rules
55			* @return bool
56			* @throws SyntaxException
57			*/
58			public function runValidate(array $rules = null)
59			{
60			// skip validation on empty rules
61			if ($rules === null \|\| !Obj::isArray($rules)) {
62			return true;
63			}
64
65			$success = true;
66			// list each rule as single one
67			foreach ($rules as $rule) {
68			// 0 = field (property) name, 1 = filter name, 2 = filter value
69			if ($rule[0] === null \|\| $rule[1] === null) {
70			continue;
71			}
72
73			// check if target field defined as array and make recursive validation
74			if (Obj::isArray($rule[0])) {
75			$validate_foreach = true;
76			foreach ($rule[0] as $field_name) {
77			// end false condition
78			if (!$this->validateRecursive($field_name, $rule[1], $rule[2], $rule[3], $rule[4])) {
79			$validate_foreach = false;
80			}
81			}
82			// assign total
83			$validate = $validate_foreach;
84			} else {
85			$validate = $this->validateRecursive($rule[0], $rule[1], $rule[2], $rule[3], $rule[4]);
86			}
87
88			// do not change condition on "true" check's (end-false-condition)
89			if ($validate === false) {
90			$success = false;
91			}
92			}
93
94			return $success;
95			}
96
97			/**
98			* Try to recursive validate field by defined rules and set result to model properties if validation is successful passed
99			* @param string\|array $field_name
100			* @param string $filter_name
101			* @param mixed $filter_argv
102			* @param bool $html
103			* @param bool $secure
104			* @return bool
105			* @throws SyntaxException
106			*/
107			public function validateRecursive($field_name, $filter_name, $filter_argv, $html = false, $secure = false)
108			{
109			// check if we got it from form defined request method
110			if (App::$Request->getMethod() !== $this->_sendMethod) {
111			return false;
112			}
113
114			// get field value from user input data
115			$field_value = $this->getFieldValue($field_name, $html, $secure);
			0 ignored issues – show Bug introduced 2016-05-16 11:52 UTC by Report Bug Copy Issue Report It seems like `$field_name` defined by parameter `$field_name` on line 107 can also be of type `array`; however, `Ffcms\Core\Traits\ModelValidator::getFieldValue()` does only seem to accept `string`, maybe add an additional type check? This check looks at variables that have been passed in as parameters and are passed out again to other methods. If the outgoing method call has stricter type requirements than the method itself, an issue is raised. An additional type check may prevent trouble. Loading history...
116
117			$check = false;
			0 ignored issues – show Unused Code introduced 2015-12-17 19:33 UTC by Report Bug Copy Issue Report `$check` is not used, you could remove the assignment. This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently. $myVar = 'Value'; $higher = false; if (rand(1, 6) > 3) { $higher = true; } else { $higher = false; } Both the `$myVar` assignment in line 1 and the `$higher` assignment in line 2 are dead. The first because `$myVar` is never used and the second because `$higher` is always overwritten for every possible time line. Loading history...
118			// maybe no filter required?
119			if ($filter_name === 'used') {
120			$check = true;
121			} elseif (Str::contains('::', $filter_name)) { // sounds like a callback class::method::method
122			// string to array via delimiter ::
123			$callbackArray = explode('::', $filter_name);
124			// first item is a class name
125			$class = array_shift($callbackArray);
126			// last item its a function
127			$method = array_pop($callbackArray);
128			// left any items? maybe post-static callbacks?
129			if (count($callbackArray) > 0) {
130			foreach ($callbackArray as $obj) {
131			if (Str::startsWith('$', $obj) && property_exists($class, ltrim($obj, '$'))) { // sounds like a variable
132			$obj = ltrim($obj, '$'); // trim variable symbol '$'
133			$class = $class::$$obj; // make magic :)
134			} elseif (method_exists($class, $obj)) { // maybe its a function?
135			$class = $class::$obj; // call function
136			} else {
137			throw new SyntaxException('Filter callback execution failed: ' . $filter_name);
138			}
139
140			}
141			}
142
143			// check is endpoint method exist
144			if (method_exists($class, $method)) {
145			$check = @$class::$method($field_value, $filter_argv);
146			} else {
147			throw new SyntaxException('Filter callback execution failed: ' . $filter_name);
148			}
149			} elseif (method_exists('Ffcms\Core\Filter\Native', $filter_name)) { // only full namespace\class path based :(
150			if ($filter_argv != null) {
151			$check = Native::$filter_name($field_value, $filter_argv);
152			} else {
153			$check = Native::$filter_name($field_value);
154			}
155			} else {
156			throw new SyntaxException('Filter "' . $filter_name . '" is not exist');
157			}
158			if ($check !== true) { // switch only on fail check.
159			$this->_badAttr[] = $field_name;
160			} else {
161			$field_set_name = $field_name;
162			// prevent array-type setting
163			if (Str::contains('.', $field_set_name)) {
164			$field_set_name = strstr($field_set_name, '.', true);
165			}
166			if (property_exists($this, $field_set_name)) {
167			if ($field_name !== $field_set_name) { // array-based property
168			$dot_path = trim(strstr($field_name, '.'), '.');
169			// prevent throws any exceptions for null and false objects
170			if (!Obj::isArray($this->{$field_set_name})) {
171			$this->{$field_set_name} = [];
172			}
173			// use dot-data provider to compile output array
174			$dotData = new DotData($this->{$field_set_name});
175			$dotData->set($dot_path, $field_value); // todo: check me!!! Here can be bug of fail parsing dots and passing path-value
176			// export data from dot-data lib to model property
177			$this->{$field_set_name} = $dotData->export();
178			} else { // just single property
179			$this->{$field_name} = $field_value; // refresh model property's from post data
180			}
181			}
182			}
183			return $check;
184			}
185
186			/**
187			* Get field value from input POST/GET/AJAX data with defined security level (html - safe html, !secure = fully unescaped)
188			* @param string $field_name
189			* @param bool $html
190			* @param bool $secure
191			* @return array\|null\|string
192			* @throws \InvalidArgumentException
193			*/
194			private function getFieldValue($field_name, $html = false, $secure = false)
195			{
196			// get type of input data (where we must look it up)
197			$sources = [];
198			$inputType = Str::lowerCase($this->_sendMethod);
199			// check input data type. Maybe file or input (text)
200			if (method_exists($this, 'sources')) {
201			$sources = $this->sources();
			0 ignored issues – show Bug introduced 2016-01-05 17:52 UTC by Report Bug Copy Issue Report It seems like `sources()` must be provided by classes using this trait. How about adding it as abstract method to this trait? This check looks for methods that are used by a trait but not required by it. To illustrate, let’s look at the following code example trait Idable { public function equalIds(Idable $other) { return $this->getId() === $other->getId(); } } The trait `Idable` provides a method `equalsId` that in turn relies on the method `getId()`. If this method does not exist on a class mixing in this trait, the method will fail. Adding the `getId()` as an abstract method to the trait will make sure it is available. Loading history...
202			}
203
204			if (Obj::isArray($sources) && array_key_exists($field_name, $sources)) {
205			$inputType = Str::lowerCase($sources[$field_name]);
206			}
207
208			$field_value = $this->getRequest($field_name, $inputType);
209			// apply html security filter for input data
210			if ($inputType !== 'file') {
211			if ($html !== true) {
212			$field_value = App::$Security->strip_tags($field_value);
			0 ignored issues – show Bug introduced 2015-12-19 07:59 UTC by Report Bug Copy Issue Report It seems like `$field_value` can also be of type `null`; however, `Ffcms\Core\Helper\Security::strip_tags()` does only seem to accept `string\|array`, 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)) { // $x is an array. } If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue. Loading history...
213			} elseif($secure !== true) {
214			$field_value = App::$Security->secureHtml($field_value);
			0 ignored issues – show Bug introduced 2016-02-17 12:35 UTC by Report Bug Copy Issue Report It seems like `$field_value` defined by `\Ffcms\Core\App::$Securi...ecureHtml($field_value)` on line `214` can also be of type `null`; however, `Ffcms\Core\Helper\Security::secureHtml()` does only seem to accept `string\|array`, 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...
215			}
216			}
217
218			return $field_value;
219			}
220
221			/**
222			* Get fail validation attributes as array if exist
223			* @return null\|array
224			*/
225			public function getBadAttribute()
226			{
227			return $this->_badAttr;
228			}
229
230			/**
231			* Set model send method type. Allowed: post, get
232			* @param string $acceptMethod
233			*/
234			final public function setSubmitMethod($acceptMethod)
235			{
236			$this->_sendMethod = Str::upperCase($acceptMethod);
237			}
238
239			/**
240			* Get model submit method. Allowed: post, get
241			* @return string
242			*/
243			final public function getSubmitMethod()
244			{
245			return $this->_sendMethod;
246			}
247
248			/**
249			* Check if model get POST-based request as submit of SEND data
250			* @return bool
251			* @throws \InvalidArgumentException
252			*/
253			final public function send()
254			{
255			if (!Str::equalIgnoreCase($this->_sendMethod, App::$Request->getMethod())) {
256			return false;
257			}
258
259			return $this->getRequest('submit', $this->_sendMethod) !== null;
260			}
261
262			/**
263			* Form default name (used in field building)
264			* @return string
265			*/
266			public function getFormName()
267			{
268			if ($this->_formName === null) {
269			$cname = get_class($this);
270			$this->_formName = substr($cname, strrpos($cname, '\\') + 1);
271			}
272
273			return $this->_formName;
274			}
275
276			/**
277			* @deprecated
278			* Get input params GET/POST/PUT method
279			* @param string $param
280			* @return string\|null
281			*/
282			public function getInput($param)
283			{
284			return $this->getRequest($param, $this->_sendMethod);
285			}
286
287			/**
288			* @deprecated
289			* Get uploaded file from user via POST request
290			* @param string $param
291			* @return \Symfony\Component\HttpFoundation\File\UploadedFile\|null
292			*/
293			public function getFile($param)
294			{
295			return $this->getRequest($param, 'file');
296			}
297
298			/**
299			* Get input param for current model form based on param name and request method
300			* @param string $param
301			* @param string\|null $method
302			* @return string\|null\|array
303			* @throws \InvalidArgumentException
304			*/
305			public function getRequest($param, $method = null)
306			{
307			// build param query for http foundation request
308			$paramQuery = $this->getFormName();
309			if (Str::contains('.', $param)) {
310			foreach (explode('.', $param) as $item) {
311			$paramQuery .= '[' . $item . ']';
312			}
313			} else {
314			$paramQuery .= '[' . $param . ']';
315			}
316
317			if ($method === null) {
318			$method = $this->_sendMethod;
319			}
320
321			// get request based on method and param query
322			$method = Str::lowerCase($method);
323			switch ($method) {
324			case 'get':
325			return App::$Request->query->get($paramQuery, null, true);
326			case 'post':
327			return App::$Request->request->get($paramQuery, null, true);
328			case 'file':
329			return App::$Request->files->get($paramQuery, null, true);
330			default:
331			return App::$Request->get($paramQuery, null, true);
332
333			}
334			}
335			}

phpffcms / ffcms-core

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ModelValidator::getFieldValue() C

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