Issues in class-wp2d-helpers.php (master) - Issues in master - DiasPHPora/wp-to-diaspora - Measure and Improve Code Quality continuously with Scrutinizer

Issues (22)

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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.

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lib/class-wp2d-helpers.php (6 issues)

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<?php
/**
 * Plugin Helpers.
 *
 * @package WP_To_Diaspora\Helpers
 * @since   1.3.0
 */

// Exit if accessed directly.
defined( 'ABSPATH' ) || exit;

/**
 * Various helper methods.
 */
class WP2D_Helpers {

	/**
	 * Debug text that get's accumulated before output.
	 *
	 * @var string
	 */
	private static $debugging = '';

	/**
	 * Add a line to the debug output. Include the stack trace to see where it's coming from.
	 *
	 * @param string $text Text to add.
	 *
	 * @return bool
	 */
	public static function add_debugging( $text ) {
		// Make sure we're in debug mode.
		if ( defined( 'WP2D_DEBUGGING' ) && true === WP2D_DEBUGGING ) {
			$d = '';
			foreach ( debug_backtrace() as $dbt ) { // phpcs:ignore
				extract( $dbt ); // phpcs:ignore
				// Only trace back as far as the plugin goes.
				if ( strstr( $file, plugin_dir_path( __DIR__ ) ) ) {
					$d = sprintf( "%s%s%s [%s:%s]\n", $class, $type, $function, basename( $file ), $line ) . $d;
				}
			}

			self::$debugging .= sprintf( "%s\n%s\n", gmdate( 'Y.m.d H:i:s' ), $d . $text );

			return true;
		}

		return false;
	}

	/**
	 * Return the debug output.
	 *
	 * @return string The debug output.
	 */
	public static function get_debugging() {
		if ( defined( 'WP2D_DEBUGGING' ) && true === WP2D_DEBUGGING ) {
			return self::$debugging;
		}

		return false;
	}

	/**
	 * Convert a string with comma seperated values to an array.
	 *
	 * @todo Make $input by value.
	 *
	 * @param array|string $input The string to be converted.
	 *
	 * @return array The converted array.
	 */
	public static function str_to_arr( &$input ) {

		if ( ! is_array( $input ) ) {
			// Explode string > Trim each entry > Remove blanks > Re-index array.
			$input = array_values( array_filter( array_map( 'trim', explode( ',', $input ) ) ) );
		} else {
			// If we're already an array, make sure we return it clean.
			self::arr_to_str( $input );
			self::str_to_arr( $input );
		}

		return $input;
	}

	/**
	 * Convert an array to a string with comma seperated values.
	 *
	 * @todo Make $input by value.
	 *
	 * @param array|string $input The array to be converted.
	 *
	 * @return string The converted string.
	 */
	public static function arr_to_str( &$input ) {

		if ( is_array( $input ) ) {
			// Trim each entry > Remove blanks > Implode them together.
			$input = implode( ',', array_filter( array_map( 'trim', $input ) ) );
		} else {
			// If we're already a string, make sure we return it clean.
			self::str_to_arr( $input );
			self::arr_to_str( $input );
		}

		return $input;
	}

	/**
	 * Encrypt the passed string with the passed key.
	 *
	 * @param string $input String to be encrypted.
	 * @param string $key   The key used for the encryption.
	 *
	 * @return string The encrypted string.
	 */
	public static function encrypt( $input, $key = WP2D_ENC_KEY ) {

		if ( null === $input || '' === $input ) {
			return false;
class Author {
    private $name;

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

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

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		}
		global $wpdb;

		return $wpdb->get_var( $wpdb->prepare( 'SELECT HEX(AES_ENCRYPT(%s,%s))', $input, $key ) );
	}

	/**
	 * Decrypt the passed string with the passed key.
	 *
	 * @param string $input String to be decrypted.
	 * @param string $key   The key used for the decryption.
	 *
	 * @return string The decrypted string.
	 */
	public static function decrypt( $input, $key = WP2D_ENC_KEY ) {

		if ( null === $input || '' === $input ) {
			return false;
class Author {
    private $name;

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

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

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		}
		global $wpdb;

		return $wpdb->get_var( $wpdb->prepare( 'SELECT AES_DECRYPT(UNHEX(%s),%s)', $input, $key ) );
	}

	/**
	 * Set up and return an API connection using the currently saved options..
	 *
	 * @return WP2D_API The API object.
	 */
	public static function api_quick_connect() {
		$options   = WP2D_Options::instance();
		$pod       = (string) $options->get_option( 'pod' );
		$is_secure = true;
		$username  = (string) $options->get_option( 'username' );
		$password  = self::decrypt( (string) $options->get_option( 'password' ) );

		$api = new WP2D_API( $pod, $is_secure );

		// This is necessary for correct error handling!
		if ( $api->init() ) {
			$api->login( $username, $password );
		}

		if ( $api->has_last_error() ) {
			self::add_debugging( $api->get_last_error() );
		}

		return $api;
	}
}


1		<?php
2		/**
3		* Plugin Helpers.
4		*
5		* @package WP_To_Diaspora\Helpers
6		* @since 1.3.0
7		*/
8
9		// Exit if accessed directly.
10		defined( 'ABSPATH' ) \|\| exit;
11
12		/**
13		* Various helper methods.
14		*/
15		class WP2D_Helpers {
16
17		/**
18		* Debug text that get's accumulated before output.
19		*
20		* @var string
21		*/
22		private static $debugging = '';
23
24		/**
25		* Add a line to the debug output. Include the stack trace to see where it's coming from.
26		*
27		* @param string $text Text to add.
28		*
29		* @return bool
30		*/
31		public static function add_debugging( $text ) {
32		// Make sure we're in debug mode.
33		if ( defined( 'WP2D_DEBUGGING' ) && true === WP2D_DEBUGGING ) {
34		$d = '';
35		foreach ( debug_backtrace() as $dbt ) { // phpcs:ignore
36		extract( $dbt ); // phpcs:ignore
37		// Only trace back as far as the plugin goes.
38		if ( strstr( $file, plugin_dir_path( __DIR__ ) ) ) {
39		$d = sprintf( "%s%s%s [%s:%s]\n", $class, $type, $function, basename( $file ), $line ) . $d;
40		}
41		}
42
43		self::$debugging .= sprintf( "%s\n%s\n", gmdate( 'Y.m.d H:i:s' ), $d . $text );
44
45		return true;
46		}
47
48		return false;
49		}
50
51		/**
52		* Return the debug output.
53		*
54		* @return string The debug output.
55		*/
56		public static function get_debugging() {
57		if ( defined( 'WP2D_DEBUGGING' ) && true === WP2D_DEBUGGING ) {
58		return self::$debugging;
59		}
60
61		return false;
62		}
63
64		/**
65		* Convert a string with comma seperated values to an array.
66		*
67		* @todo Make $input by value.
68		*
69		* @param array\|string $input The string to be converted.
70		*
71		* @return array The converted array.
72		*/
73	View Code Duplication	public static function str_to_arr( &$input ) {
		0 ignored issues – show Duplication introduced 2017-01-29 22:21 UTC by Report Bug Copy Issue Report Show Similar Issues like this This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
74		if ( ! is_array( $input ) ) {
75		// Explode string > Trim each entry > Remove blanks > Re-index array.
76		$input = array_values( array_filter( array_map( 'trim', explode( ',', $input ) ) ) );
77		} else {
78		// If we're already an array, make sure we return it clean.
79		self::arr_to_str( $input );
80		self::str_to_arr( $input );
81		}
82
83		return $input;
84		}
85
86		/**
87		* Convert an array to a string with comma seperated values.
88		*
89		* @todo Make $input by value.
90		*
91		* @param array\|string $input The array to be converted.
92		*
93		* @return string The converted string.
94		*/
95	View Code Duplication	public static function arr_to_str( &$input ) {
		0 ignored issues – show Duplication introduced 2017-01-29 22:21 UTC by Report Bug Copy Issue Report Show Similar Issues like this This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
96		if ( is_array( $input ) ) {
97		// Trim each entry > Remove blanks > Implode them together.
98		$input = implode( ',', array_filter( array_map( 'trim', $input ) ) );
99		} else {
100		// If we're already a string, make sure we return it clean.
101		self::str_to_arr( $input );
102		self::arr_to_str( $input );
103		}
104
105		return $input;
106		}
107
108		/**
109		* Encrypt the passed string with the passed key.
110		*
111		* @param string $input String to be encrypted.
112		* @param string $key The key used for the encryption.
113		*
114		* @return string The encrypted string.
115		*/
116	View Code Duplication	public static function encrypt( $input, $key = WP2D_ENC_KEY ) {
		0 ignored issues – show Duplication introduced 2020-06-16 21:37 UTC by Report Bug Copy Issue Report Show Similar Issues like this This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
117		if ( null === $input \|\| '' === $input ) {
118		return false;
		0 ignored issues – show Bug Best Practice introduced 2017-01-29 22:21 UTC by Report Bug Copy Issue Report Show Similar Issues like this The return type of `return false;` (`false`) is incompatible with the return type documented by `WP2D_Helpers::encrypt` of type `string`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
119		}
120		global $wpdb;
121
122		return $wpdb->get_var( $wpdb->prepare( 'SELECT HEX(AES_ENCRYPT(%s,%s))', $input, $key ) );
123		}
124
125		/**
126		* Decrypt the passed string with the passed key.
127		*
128		* @param string $input String to be decrypted.
129		* @param string $key The key used for the decryption.
130		*
131		* @return string The decrypted string.
132		*/
133	View Code Duplication	public static function decrypt( $input, $key = WP2D_ENC_KEY ) {
		0 ignored issues – show Duplication introduced 2020-06-16 21:37 UTC by Report Bug Copy Issue Report Show Similar Issues like this This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
134		if ( null === $input \|\| '' === $input ) {
135		return false;
		0 ignored issues – show Bug Best Practice introduced 2017-01-29 22:21 UTC by Report Bug Copy Issue Report Show Similar Issues like this The return type of `return false;` (`false`) is incompatible with the return type documented by `WP2D_Helpers::decrypt` of type `string`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
136		}
137		global $wpdb;
138
139		return $wpdb->get_var( $wpdb->prepare( 'SELECT AES_DECRYPT(UNHEX(%s),%s)', $input, $key ) );
140		}
141
142		/**
143		* Set up and return an API connection using the currently saved options..
144		*
145		* @return WP2D_API The API object.
146		*/
147		public static function api_quick_connect() {
148		$options = WP2D_Options::instance();
149		$pod = (string) $options->get_option( 'pod' );
150		$is_secure = true;
151		$username = (string) $options->get_option( 'username' );
152		$password = self::decrypt( (string) $options->get_option( 'password' ) );
153
154		$api = new WP2D_API( $pod, $is_secure );
155
156		// This is necessary for correct error handling!
157		if ( $api->init() ) {
158		$api->login( $username, $password );
159		}
160
161		if ( $api->has_last_error() ) {
162		self::add_debugging( $api->get_last_error() );
163		}
164
165		return $api;
166		}
167		}
168

DiasPHPora / wp-to-diaspora

Issues (22)

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lib/class-wp2d-helpers.php (6 issues)

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