Captcha - Code Metrics - AnuTiger/F3 - Measure and Improve Code Quality continuously with Scrutinizer

Captcha A
last analyzed 2017-10-07 21:40 UTC

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	120
Duplicated Lines	0 %

Importance

Changes

Metric	Value
dl	0
loc	120
rs	10
c	0
b	0
f	0
wmc	29

12 Methods

Rating	Name	Size	Complexity
C	render()	36	11
A	setSession()	4	1
A	text()	4	1
A	input()	3	1
A	__construct()	3	1
A	source()	2	1
A	name()	4	1
A	_generate()	3	1
A	img()	3	1
B	verify()	20	7
A	salt()	3	1
A	startSession()	3	2

<?php

class Captcha extends Prefab
{
    protected $name;
    protected $code;
    protected $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';

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

    public function text($length = 4, $mock = null)
    {
        $this->setSession($code = $this->_generate($length));
        return $code;
    }

    public function img($length = 4, $class = 'captcha-img')
    {
        return '<img src="'.$this->text($length).'" class="'.$class.'" />';
    }

    public function source($length = 4, $mock = null)
    {
    }

    public function input($class = 'captcha-input')
    {
        return '<input type="text" class="'.$class.'" name="'.$this->name.'" />';
    }

    /*
    * Captcha::instance()->render(4)
    * Captcha::instance()->render(array('type'=>'img','length'=>4,'class'=>array('img'=>'captcha-img','input'=>'captcha-input')));
     */
    public function render($param, $url)
    {
        if (is_array($param)) {
            $func = null;
            $length = null;
            $imgClass = null;
            $inputClass = null;
            foreach ($param as $key => $val) {
                if ('type' == $key) {
                    $func = $key;
                }
                if ('length' == $key) {
                    $length = $key;
                }
                if ('class' == $key && is_array($key)) {
                    if (array_key_exists('img', $key)) {
                        $imgClass = $key['img'];
                    } elseif (array_key_exists('input', $key)) {
                        $inputClass = $key['input'];
                    }
                } else {
                    $imgClass = $inputClass = $key;
                }
            }
            if (method_exists($this, $func)) {
                $response = $this->$key($length, $imgClass).$this->input($inputClass);

            } else {
                throw new Exception("Error Processing Captcha Method", 1);
            }
        } elseif (is_numeric($param)) {
            $response = $this->img($param).$this->input();
        } else {
            throw new Exception("Error Processing Captcha Parameters", 1);
        }

        return '<form method="post" action="'.$url.'">'.$response.'</form>';
    }

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

    public function verify($code)
// Bad
class Router
{
    public function generate($path)
    {
        return $_SERVER['HOST'].$path;
    }
}

// Better
class Router
{
    private $host;

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

    public function generate($path)
    {
        return $this->host.$path;
    }
}

class Controller
{
    public function myAction(Request $request)
    {
        // Instead of
        $page = isset($_GET['page']) ? intval($_GET['page']) : 1;

        // Better (assuming you use the Symfony2 request)
        $page = $request->query->get('page', 1);
    }
}
    {
        $this->startSession();

        $n = $this->name;

        $valid = isset($_SESSION[$n])
            && isset($_POST[$n])
            && strlen($_POST[$n])
            && ($_SESSION[$n] === crypt(strtolower($_POST[$n]), $this->salt()));

        if (isset($_POST[$n])) {
            unset($_POST[$n]);
        }

        if ($valid && isset($_SESSION[$n])) {
            unset($_SESSION[$n]);
        }

        return $valid;
    }

    private function startSession()
    {
        session_id() || session_start();
    }

    private function setSession($string)
// Bad
class Router
{
    public function generate($path)
    {
        return $_SERVER['HOST'].$path;
    }
}

// Better
class Router
{
    private $host;

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

    public function generate($path)
    {
        return $this->host.$path;
    }
}

class Controller
{
    public function myAction(Request $request)
    {
        // Instead of
        $page = isset($_GET['page']) ? intval($_GET['page']) : 1;

        // Better (assuming you use the Symfony2 request)
        $page = $request->query->get('page', 1);
    }
}
    {
        $this->startSession();
        $_SESSION[$this->name] = crypt(strtolower($string), $this->salt());
    }

    private function _generate($length)
    {
        return $this->code = substr(str_shuffle(str_repeat($this->pool, 5)), 0, $length);
    }

    private static function salt()
    {
        return md5(__FILE__.filemtime(__FILE__));
    }
}


1			<?php
2
3			class Captcha extends Prefab
4			{
5			protected $name;
6			protected $code;
7			protected $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
8
9			public function __construct($name = 'captcha-string')
10			{
11			$this->name = $name;
12			}
13
14			public function text($length = 4, $mock = null)
15			{
16			$this->setSession($code = $this->_generate($length));
17			return $code;
18			}
19
20			public function img($length = 4, $class = 'captcha-img')
21			{
22			return '<img src="'.$this->text($length).'" class="'.$class.'" />';
23			}
24
25			public function source($length = 4, $mock = null)
26			{
27			}
28
29			public function input($class = 'captcha-input')
30			{
31			return '<input type="text" class="'.$class.'" name="'.$this->name.'" />';
32			}
33
34			/*
35			* Captcha::instance()->render(4)
36			* Captcha::instance()->render(array('type'=>'img','length'=>4,'class'=>array('img'=>'captcha-img','input'=>'captcha-input')));
37			*/
38			public function render($param, $url)
39			{
40			if (is_array($param)) {
41			$func = null;
42			$length = null;
43			$imgClass = null;
44			$inputClass = null;
45			foreach ($param as $key => $val) {
46			if ('type' == $key) {
47			$func = $key;
48			}
49			if ('length' == $key) {
50			$length = $key;
51			}
52			if ('class' == $key && is_array($key)) {
53			if (array_key_exists('img', $key)) {
54			$imgClass = $key['img'];
55			} elseif (array_key_exists('input', $key)) {
56			$inputClass = $key['input'];
57			}
58			} else {
59			$imgClass = $inputClass = $key;
60			}
61			}
62			if (method_exists($this, $func)) {
63			$response = $this->$key($length, $imgClass).$this->input($inputClass);
			0 ignored issues – show Comprehensibility Best Practice introduced 2017-10-07 19:32 UTC by Report Bug Copy Issue Report The variable `$key` seems to be defined by a `foreach` iteration on line `45`. Are you sure the iterator is never empty, otherwise this variable is not defined? Loading history...
64			} else {
65			throw new Exception("Error Processing Captcha Method", 1);
66			}
67			} elseif (is_numeric($param)) {
68			$response = $this->img($param).$this->input();
69			} else {
70			throw new Exception("Error Processing Captcha Parameters", 1);
71			}
72
73			return '<form method="post" action="'.$url.'">'.$response.'</form>';
74			}
75
76			public function name($name)
77			{
78			$this->name = $name;
79			return $this;
80			}
81
82			public function verify($code)
			0 ignored issues – show Coding Style introduced 2017-10-07 19:32 UTC by Report Bug Copy Issue Report `verify` uses the super-global variable `$_SESSION` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($path) { return $_SERVER['HOST'].$path; } } // Better class Router { private $host; public function __construct($host) { $this->host = $host; } public function generate($path) { return $this->host.$path; } } class Controller { public function myAction(Request $request) { // Instead of $page = isset($_GET['page']) ? intval($_GET['page']) : 1; // Better (assuming you use the Symfony2 request) $page = $request->query->get('page', 1); } } Loading history... Coding Style introduced 2017-10-07 19:32 UTC by Report Bug Copy Issue Report `verify` uses the super-global variable `$_POST` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($path) { return $_SERVER['HOST'].$path; } } // Better class Router { private $host; public function __construct($host) { $this->host = $host; } public function generate($path) { return $this->host.$path; } } class Controller { public function myAction(Request $request) { // Instead of $page = isset($_GET['page']) ? intval($_GET['page']) : 1; // Better (assuming you use the Symfony2 request) $page = $request->query->get('page', 1); } } Loading history...
83			{
84			$this->startSession();
85
86			$n = $this->name;
87
88			$valid = isset($_SESSION[$n])
89			&& isset($_POST[$n])
90			&& strlen($_POST[$n])
91			&& ($_SESSION[$n] === crypt(strtolower($_POST[$n]), $this->salt()));
92
93			if (isset($_POST[$n])) {
94			unset($_POST[$n]);
95			}
96
97			if ($valid && isset($_SESSION[$n])) {
98			unset($_SESSION[$n]);
99			}
100
101			return $valid;
102			}
103
104			private function startSession()
105			{
106			session_id() \|\| session_start();
107			}
108
109			private function setSession($string)
			0 ignored issues – show Coding Style introduced 2017-10-07 19:32 UTC by Report Bug Copy Issue Report `setSession` uses the super-global variable `$_SESSION` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($path) { return $_SERVER['HOST'].$path; } } // Better class Router { private $host; public function __construct($host) { $this->host = $host; } public function generate($path) { return $this->host.$path; } } class Controller { public function myAction(Request $request) { // Instead of $page = isset($_GET['page']) ? intval($_GET['page']) : 1; // Better (assuming you use the Symfony2 request) $page = $request->query->get('page', 1); } } Loading history...
110			{
111			$this->startSession();
112			$_SESSION[$this->name] = crypt(strtolower($string), $this->salt());
113			}
114
115			private function _generate($length)
116			{
117			return $this->code = substr(str_shuffle(str_repeat($this->pool, 5)), 0, $length);
118			}
119
120			private static function salt()
121			{
122			return md5(__FILE__.filemtime(__FILE__));
123			}
124			}
125

AnuTiger / F3

Captcha A last analyzed 2017-10-07 21:40 UTC

Complexity

Size/Duplication

Importance

12 Methods

Duplication Side-by-Side

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Captcha A
last analyzed 2017-10-07 21:40 UTC