Issues in Base62.php (master) - Issues in master - fwolf/uuid.php - Measure and Improve Code Quality continuously with Scrutinizer

Issues (8)

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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/Uuid/Base62.php (2 issues)

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<?php
namespace Fwolf\Util\Uuid;

use Fwolf\Util\BaseConverter\BaseConverterAwareTrait;

/**
 * UUID generator using base-62 character (0-9a-zA-Z)
 *
 *
 * second: 6 chars, seconds in microtime.
 *      base_convert('ZZZZZZ', 62, 10) = 56800235583 = 3769-12-05 11:13:03
 *      base_convert('100000', 62, 10) = 916132832 = 1999-01-12 17:20:32
 *
 * microsecond: 4 chars, micro-second in microtime, multiple 1000000.
 *      base_convert(999999, 10, 62) = 4c91
 *
 * group: 2 chars
 *      base_convert('zz', 62, 10) = 3843, enough to group server.
 *
 * random: 6 chars
 *      62^6 = 56800235584, about 13x of 16^8 = 4294967296,
 *      and microsecond is 100x of general UUID.
 * (Notice: base_convert() does not allow base greater than 36.)
 *
 * Notice: Mix of a-zA-Z may not suit for Mysql UUID, because Mysql default
 * compare string CASE INSENSITIVE.
 *
 * @copyright   Copyright 2013-2016 Fwolf
 * @license     http://opensource.org/licenses/MIT MIT
 */
class Base62 extends AbstractTimeBasedUuidGenerator
{
    use BaseConverterAwareTrait;


    /**
     * {@inheritdoc}
     */
    const LENGTH = 24;

    /**
     * {@inheritdoc}
     */
    const LENGTH_SECOND = 6;

    /**
     * {@inheritdoc}
     */
    const LENGTH_MICROSECOND = 4;

    /**
     * {@inheritdoc}
     */
    const LENGTH_GROUP = 2;

    /**
     * {@inheritdoc}
     */
    const LENGTH_CUSTOM = 6;

    /**
     * {@inheritdoc}
     */
    const LENGTH_RANDOM = 6;

    /**
     * {@inheritdoc}
     */
    const LENGTH_CHECK_DIGIT = 0;

    /**
     * {@inheritdoc}
     */
    const SEPARATOR = '';


    /**
     * {@inheritdoc}
     */
    public function explain($uuid)
    {
        $explanation = parent::explain($uuid);

        $converter = $this->getBaseConverter();

        $second = $converter->convert($explanation->getSecond(), 62, 10);
        $explanation->setSecond(date('Y-m-d H:i:s', $second));

        $microsecond =
            $converter->convert($explanation->getMicrosecond(), 62, 10);
        $explanation->setMicrosecond($microsecond);

        return $explanation;
    }


    /**
     * {@inheritdoc}
     *
     * Parent method result md5, here only need 9 digit of them.
     *      base_convert('f{8}', 16, 62) = cOu4kx
     *      base_convert('f{9}', 16, 62) = 3j1L7jb
     */
    protected function generateCustomPartAuto()
    {
        $seed = parent::generateCustomPartAuto();
        $seed = substr($seed, 0, 9);

        $converter = $this->getBaseConverter();
        $custom = $converter->convert($seed, 16, 62);

        // In case convert result not fulfill the length
        return $custom . '000000';
    }


    /**
     * {@inheritdoc}
     */
    protected function generateRandomPart()
    {
        $converter = $this->getBaseConverter();

        // base_convert('ZZZ', 62, 10) = 238327

        // base_convert('100', 62, 10) = 3844

        $randomPart = $converter->convert(mt_rand(3844, 238327), 10, 62) .
            $converter->convert(mt_rand(0, 238327), 10, 62);

        return $randomPart;
    }


    /**
     * {@inheritdoc}
     */
    protected function generateTimeParts()
    {
        list($microSecond, $second) = explode(' ', microtime());

        $converter = $this->getBaseConverter();

        $second = $converter->convert($second, 10, 62);

        $microSecond = round($microSecond * 1000000);
        $microSecond = $converter->convert($microSecond, 10, 62);
        $microSecond = str_pad(
            $microSecond,
            static::LENGTH_MICROSECOND,
            '0',
            STR_PAD_LEFT
        );

        return [$second, $microSecond];
    }
}


1			<?php
2			namespace Fwolf\Util\Uuid;
3
4			use Fwolf\Util\BaseConverter\BaseConverterAwareTrait;
5
6			/**
7			* UUID generator using base-62 character (0-9a-zA-Z)
8			*
9			*
10			* second: 6 chars, seconds in microtime.
11			* base_convert('ZZZZZZ', 62, 10) = 56800235583 = 3769-12-05 11:13:03
12			* base_convert('100000', 62, 10) = 916132832 = 1999-01-12 17:20:32
13			*
14			* microsecond: 4 chars, micro-second in microtime, multiple 1000000.
15			* base_convert(999999, 10, 62) = 4c91
16			*
17			* group: 2 chars
18			* base_convert('zz', 62, 10) = 3843, enough to group server.
19			*
20			* random: 6 chars
21			* 62^6 = 56800235584, about 13x of 16^8 = 4294967296,
22			* and microsecond is 100x of general UUID.
23			* (Notice: base_convert() does not allow base greater than 36.)
24			*
25			* Notice: Mix of a-zA-Z may not suit for Mysql UUID, because Mysql default
26			* compare string CASE INSENSITIVE.
27			*
28			* @copyright Copyright 2013-2016 Fwolf
29			* @license http://opensource.org/licenses/MIT MIT
30			*/
31			class Base62 extends AbstractTimeBasedUuidGenerator
32			{
33			use BaseConverterAwareTrait;
34
35
36			/**
37			* {@inheritdoc}
38			*/
39			const LENGTH = 24;
40
41			/**
42			* {@inheritdoc}
43			*/
44			const LENGTH_SECOND = 6;
45
46			/**
47			* {@inheritdoc}
48			*/
49			const LENGTH_MICROSECOND = 4;
50
51			/**
52			* {@inheritdoc}
53			*/
54			const LENGTH_GROUP = 2;
55
56			/**
57			* {@inheritdoc}
58			*/
59			const LENGTH_CUSTOM = 6;
60
61			/**
62			* {@inheritdoc}
63			*/
64			const LENGTH_RANDOM = 6;
65
66			/**
67			* {@inheritdoc}
68			*/
69			const LENGTH_CHECK_DIGIT = 0;
70
71			/**
72			* {@inheritdoc}
73			*/
74			const SEPARATOR = '';
75
76
77			/**
78			* {@inheritdoc}
79			*/
80			public function explain($uuid)
81			{
82			$explanation = parent::explain($uuid);
83
84			$converter = $this->getBaseConverter();
85
86			$second = $converter->convert($explanation->getSecond(), 62, 10);
87			$explanation->setSecond(date('Y-m-d H:i:s', $second));
88
89			$microsecond =
90			$converter->convert($explanation->getMicrosecond(), 62, 10);
91			$explanation->setMicrosecond($microsecond);
92
93			return $explanation;
94			}
95
96
97			/**
98			* {@inheritdoc}
99			*
100			* Parent method result md5, here only need 9 digit of them.
101			* base_convert('f{8}', 16, 62) = cOu4kx
102			* base_convert('f{9}', 16, 62) = 3j1L7jb
103			*/
104			protected function generateCustomPartAuto()
105			{
106			$seed = parent::generateCustomPartAuto();
107			$seed = substr($seed, 0, 9);
108
109			$converter = $this->getBaseConverter();
110			$custom = $converter->convert($seed, 16, 62);
111
112			// In case convert result not fulfill the length
113			return $custom . '000000';
114			}
115
116
117			/**
118			* {@inheritdoc}
119			*/
120			protected function generateRandomPart()
121			{
122			$converter = $this->getBaseConverter();
123
124			// base_convert('ZZZ', 62, 10) = 238327
			0 ignored issues – show Unused Code Comprehensibility introduced 2016-10-10 15:58 UTC by Report Bug Copy Issue Report Show Similar Issues like this `54%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
125			// base_convert('100', 62, 10) = 3844
			0 ignored issues – show Unused Code Comprehensibility introduced 2016-10-10 15:58 UTC by Report Bug Copy Issue Report Show Similar Issues like this `54%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
126			$randomPart = $converter->convert(mt_rand(3844, 238327), 10, 62) .
127			$converter->convert(mt_rand(0, 238327), 10, 62);
128
129			return $randomPart;
130			}
131
132
133			/**
134			* {@inheritdoc}
135			*/
136			protected function generateTimeParts()
137			{
138			list($microSecond, $second) = explode(' ', microtime());
139
140			$converter = $this->getBaseConverter();
141
142			$second = $converter->convert($second, 10, 62);
143
144			$microSecond = round($microSecond * 1000000);
145			$microSecond = $converter->convert($microSecond, 10, 62);
146			$microSecond = str_pad(
147			$microSecond,
148			static::LENGTH_MICROSECOND,
149			'0',
150			STR_PAD_LEFT
151			);
152
153			return [$second, $microSecond];
154			}
155			}
156

fwolf / uuid.php

Issues (8)

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src/Uuid/Base62.php (2 issues)

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