Issues in Updater.php (master) - Issues in master - nabble/semalt-blocker - Measure and Improve Code Quality continuously with Scrutinizer

Issues (13)

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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/SemaltBlocker/Updater.php (2 issues)

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<?php

namespace Nabble\SemaltBlocker;

/**
 * The `update` method is called from the Blocker class every week to grab latest domain list from GitHub.
 */
class Updater
{
    public static $ttl = 604800; // = 60 * 60 * 24 * 7 = 7 days
    public static $updateUrl = 'https://raw.githubusercontent.com/nabble/semalt-blocker/master/domains/blocked';

    private static $blocklist = './../../domains/blocked';

    //////////////////////////////////////////
    // PUBLIC API                           //
    //////////////////////////////////////////

    /**
     * Try to update the blocked domains list.
     *
     * @param bool $force
     */
    public static function update($force = false)
    {
        if (!defined('SEMALT_UNIT_TESTING') && !self::isWritable()) {
            return;
        }

        if (!$force && !self::isOutdated()) {
            return;
        }

        self::doUpdate();
    }

    /**
     * @return string
     */
    public static function getNewDomainList()
    {
        if (function_exists('curl_init')) {
            $curl = curl_init();
            curl_setopt_array($curl, [
                CURLOPT_RETURNTRANSFER => 1,
                CURLOPT_URL            => self::$updateUrl,
            ]);
            $domains = curl_exec($curl);
            curl_close($curl);
        } else {
            $domains = @file_get_contents(self::$updateUrl);
        }

        return $domains;
    }

    /**
     * @return string
     */
    public static function getBlocklistFilename()
    {
        return __DIR__ . DIRECTORY_SEPARATOR . static::$blocklist;
class YourClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return static::$someVariable;
    }
}
    }

    //////////////////////////////////////////
    // PRIVATE FUNCTIONS                    //
    //////////////////////////////////////////

    private static function doUpdate()
    {
        $domains = self::getNewDomainList();

        // Don't panic if updating the file throws an error of some kind
        if (trim($domains) !== '') {
            @file_put_contents(self::getBlocklistFilename(), $domains);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
        }
    }

    /**
     * @return bool
     */
    private static function isWritable()
    {
        return is_writable(self::getBlocklistFilename());
    }

    /**
     * @return bool
     */
    private static function isOutdated()
    {
        return filemtime(self::getBlocklistFilename()) < (time() - self::$ttl);
    }
}


1			<?php
2
3			namespace Nabble\SemaltBlocker;
4
5			/**
6			* The `update` method is called from the Blocker class every week to grab latest domain list from GitHub.
7			*/
8			class Updater
9			{
10			public static $ttl = 604800; // = 60 * 60 * 24 * 7 = 7 days
11			public static $updateUrl = 'https://raw.githubusercontent.com/nabble/semalt-blocker/master/domains/blocked';
12
13			private static $blocklist = './../../domains/blocked';
14
15			//////////////////////////////////////////
16			// PUBLIC API //
17			//////////////////////////////////////////
18
19			/**
20			* Try to update the blocked domains list.
21			*
22			* @param bool $force
23			*/
24			public static function update($force = false)
25			{
26			if (!defined('SEMALT_UNIT_TESTING') && !self::isWritable()) {
27			return;
28			}
29
30			if (!$force && !self::isOutdated()) {
31			return;
32			}
33
34			self::doUpdate();
35			}
36
37			/**
38			* @return string
39			*/
40			public static function getNewDomainList()
41			{
42			if (function_exists('curl_init')) {
43			$curl = curl_init();
44			curl_setopt_array($curl, [
45			CURLOPT_RETURNTRANSFER => 1,
46			CURLOPT_URL => self::$updateUrl,
47			]);
48			$domains = curl_exec($curl);
49			curl_close($curl);
50			} else {
51			$domains = @file_get_contents(self::$updateUrl);
52			}
53
54			return $domains;
55			}
56
57			/**
58			* @return string
59			*/
60			public static function getBlocklistFilename()
61			{
62			return __DIR__ . DIRECTORY_SEPARATOR . static::$blocklist;
			0 ignored issues – show Bug introduced 2015-11-27 09:48 UTC by Report Bug Copy Issue Report Show Similar Issues like this Since `$blocklist` is declared private, accessing it with `static` will lead to errors in possible sub-classes; consider using `self`, or increasing the visibility of `$blocklist` to at least protected. Let’s assume you have a class which uses late-static binding: class YourClass { private static $someVariable; public static function getSomeVariable() { return static::$someVariable; } } The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the `getSomeVariable()` on that sub-class, you will receive a runtime error: class YourSubClass extends YourClass { } YourSubClass::getSomeVariable(); // Will cause an access error. In the case above, it makes sense to update `SomeClass` to use `self` instead: class SomeClass { private static $someVariable; public static function getSomeVariable() { return self::$someVariable; // self works fine with private. } } Loading history...
63			}
64
65			//////////////////////////////////////////
66			// PRIVATE FUNCTIONS //
67			//////////////////////////////////////////
68
69			private static function doUpdate()
70			{
71			$domains = self::getNewDomainList();
72
73			// Don't panic if updating the file throws an error of some kind
74			if (trim($domains) !== '') {
75			@file_put_contents(self::getBlocklistFilename(), $domains);
			0 ignored issues – show Security Best Practice introduced 2015-11-27 09:48 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like you do not handle an error condition here. This can introduce security issues, and is generally not recommended. If you suppress an error, we recommend checking for the error condition explicitly: // For example instead of @mkdir($dir); // Better use if (@mkdir($dir) === false) { throw new \RuntimeException('The directory '.$dir.' could not be created.'); } Loading history...
76			}
77			}
78
79			/**
80			* @return bool
81			*/
82			private static function isWritable()
83			{
84			return is_writable(self::getBlocklistFilename());
85			}
86
87			/**
88			* @return bool
89			*/
90			private static function isOutdated()
91			{
92			return filemtime(self::getBlocklistFilename()) < (time() - self::$ttl);
93			}
94			}
95

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src/SemaltBlocker/Updater.php (2 issues)

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Issues (13)

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src/SemaltBlocker/Updater.php (2 issues)

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