Issues in Helpers.php (master) - Issues in master - wasinger/htmlpagedom - Measure and Improve Code Quality continuously with Scrutinizer

Issues (5)

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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/Helpers.php (1 issue)

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<?php
namespace Wa72\HtmlPageDom;

/**
 * Static helper functions for HtmlPageDom
 *
 * @package Wa72\HtmlPageDom
 */
class Helpers {

    /**
     * remove newlines from string and minimize whitespace (multiple whitespace characters replaced by one space)
     * useful for cleaning up text retrieved by HtmlPageCrawler::text() (nodeValue of a DOMNode)
     *
     * @param string $string
     * @return string
     */
    public static function trimNewlines($string)
    {
        $string = str_replace("\n", ' ', $string);
        $string = str_replace("\r", ' ', $string);
        $string = preg_replace('/\s+/', ' ', $string);
        return trim($string);
    }

    /**
     * Convert CSS string to array
     *
     * @param string $css list of CSS properties separated by ;
     * @return array name=>value pairs of CSS properties
     */
    public static function cssStringToArray($css)
    {
        $statements = explode(';', preg_replace('/\s+/s', ' ', $css));
        $styles = array();
        foreach ($statements as $statement) {
            $statement = trim($statement);
            if ('' === $statement) {
                continue;
            }
            $p = strpos($statement, ':');
            if ($p <= 0) {
                continue;
            } // invalid statement, just ignore it
            $key = trim(substr($statement, 0, $p));
            $value = trim(substr($statement, $p + 1));
            $styles[$key] = $value;
        }
        return $styles;
    }

    /**
     * Convert CSS name->value array to string
     *
     * @param array $array name=>value pairs of CSS properties
     * @return string list of CSS properties separated by ;
     */
    public static function cssArrayToString($array)
    {
        $styles = '';
        foreach ($array as $key => $value) {
            $styles .= $key . ': ' . $value . ';';
        }
        return $styles;
    }

    /**
     * Helper function for getting a body element
     * from an HTML fragment
     *
     * @param string $html A fragment of HTML code
     * @param string $charset
     * @return \DOMNode The body node containing child nodes created from the HTML fragment
     */
    public static function getBodyNodeFromHtmlFragment($html, $charset = 'UTF-8')
    {
        $html = '<html><body>' . $html . '</body></html>';
        $current = libxml_use_internal_errors(true);
        $disableEntities = libxml_disable_entity_loader(true);
        $d = new \DOMDocument('1.0', $charset);
        $d->validateOnParse = true;
        if (function_exists('mb_convert_encoding') && in_array(
                strtolower($charset),
                array_map('strtolower', mb_list_encodings())
            )
        ) {
            $html = mb_convert_encoding($html, 'HTML-ENTITIES', $charset);
        }
        @$d->loadHTML($html);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
        libxml_use_internal_errors($current);
        libxml_disable_entity_loader($disableEntities);
        return $d->getElementsByTagName('body')->item(0);
    }
}


1		<?php
2		namespace Wa72\HtmlPageDom;
3
4		/**
5		* Static helper functions for HtmlPageDom
6		*
7		* @package Wa72\HtmlPageDom
8		*/
9		class Helpers {
10
11		/**
12		* remove newlines from string and minimize whitespace (multiple whitespace characters replaced by one space)
13		* useful for cleaning up text retrieved by HtmlPageCrawler::text() (nodeValue of a DOMNode)
14		*
15		* @param string $string
16		* @return string
17		*/
18	1	public static function trimNewlines($string)
19		{
20	1	$string = str_replace("\n", ' ', $string);
21	1	$string = str_replace("\r", ' ', $string);
22	1	$string = preg_replace('/\s+/', ' ', $string);
23	1	return trim($string);
24		}
25
26		/**
27		* Convert CSS string to array
28		*
29		* @param string $css list of CSS properties separated by ;
30		* @return array name=>value pairs of CSS properties
31		*/
32	1	public static function cssStringToArray($css)
33		{
34	1	$statements = explode(';', preg_replace('/\s+/s', ' ', $css));
35	1	$styles = array();
36	1	foreach ($statements as $statement) {
37	1	$statement = trim($statement);
38	1	if ('' === $statement) {
39	1	continue;
40		}
41	1	$p = strpos($statement, ':');
42	1	if ($p <= 0) {
43	1	continue;
44		} // invalid statement, just ignore it
45	1	$key = trim(substr($statement, 0, $p));
46	1	$value = trim(substr($statement, $p + 1));
47	1	$styles[$key] = $value;
48		}
49	1	return $styles;
50		}
51
52		/**
53		* Convert CSS name->value array to string
54		*
55		* @param array $array name=>value pairs of CSS properties
56		* @return string list of CSS properties separated by ;
57		*/
58	1	public static function cssArrayToString($array)
59		{
60	1	$styles = '';
61	1	foreach ($array as $key => $value) {
62	1	$styles .= $key . ': ' . $value . ';';
63		}
64	1	return $styles;
65		}
66
67		/**
68		* Helper function for getting a body element
69		* from an HTML fragment
70		*
71		* @param string $html A fragment of HTML code
72		* @param string $charset
73		* @return \DOMNode The body node containing child nodes created from the HTML fragment
74		*/
75	15	public static function getBodyNodeFromHtmlFragment($html, $charset = 'UTF-8')
76		{
77	15	$html = '<html><body>' . $html . '</body></html>';
78	15	$current = libxml_use_internal_errors(true);
79	15	$disableEntities = libxml_disable_entity_loader(true);
80	15	$d = new \DOMDocument('1.0', $charset);
81	15	$d->validateOnParse = true;
82	15	if (function_exists('mb_convert_encoding') && in_array(
83	15	strtolower($charset),
84	15	array_map('strtolower', mb_list_encodings())
85		)
86		) {
87	15	$html = mb_convert_encoding($html, 'HTML-ENTITIES', $charset);
88		}
89	15	@$d->loadHTML($html);
		0 ignored issues – show Security Best Practice introduced 2016-03-18 20:10 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like you do not handle an error condition here. This can introduce security issues, and is generally not recommended. If you suppress an error, we recommend checking for the error condition explicitly: // For example instead of @mkdir($dir); // Better use if (@mkdir($dir) === false) { throw new \RuntimeException('The directory '.$dir.' could not be created.'); } Loading history...
90	15	libxml_use_internal_errors($current);
91	15	libxml_disable_entity_loader($disableEntities);
92	15	return $d->getElementsByTagName('body')->item(0);
93		}
94		}
95

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