FormSecrets::getData() - Code Metrics - Inspection of "added FormSecrets" - Stefanius67/Formgenerator - Measure and Improve Code Quality continuously with Scrutinizer

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by Stefan

created 2025-10-06 18:53 UTC

FormSecrets::getData() A

↳ Parent: FormSecrets

Complexity

Conditions	2
Paths	2

Size

Total Lines	9
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
cc	2
eloc	6
c	1
b	0
f	1
nc	2
nop	0
dl	0
loc	9
rs	10

<?php

declare(strict_types=1);

namespace SKien\Formgenerator;

/**
 *
 * @author Stefanius <[email protected]>
 * @copyright MIT License - see the LICENSE file for details
 */
class FormSecrets extends FormInput
{
    protected string $strPrivateKey;
    protected string $strPublicKey;
    protected bool $bUseJWT = false;
    protected array $aSecrets = [];

    public function __construct(string $strName = '')
    {
        parent::__construct($strName, -1, FormFlags::HIDDEN);
    }

    public function setData(string $strData) : bool
    {
        $aSecrets = false;
        if ($this->bUseJWT) {
            $aSecrets = $this->verifyRS256JWT($strData);
        } else {
            $aSecrets = $this->decodeJSON($strData);
        }
        if ($aSecrets !== false) {
            $this->aSecrets = $aSecrets;
        }
        return $aSecrets !== false;
    }

    public function getData() : string
    {
        $strData = '';
        if ($this->bUseJWT) {
            $strData = $this->encodeRS256JWT($this->aSecrets);
        } else {
            $strData = $this->encodeJSON($this->aSecrets);
        }
        return $strData;
    }

    public function add(string $strName, mixed $value) : void
    {
        $this->aSecrets[$strName] = $value;
    }

    public function get(string $strName) : mixed
    {
        return $this->aSecrets[$strName] ?? null;
    }

    public function loadPrivateKey(string $strPrivateKeyFile) : void
    {
        if (is_readable($strPrivateKeyFile)) {
            $this->strPrivateKey = file_get_contents($strPrivateKeyFile);
            $this->bUseJWT = true;
        } else {
            trigger_error("The file [$strPrivateKeyFile] doesn't exist or is not readable!", E_USER_ERROR);
        }
    }

    public function loadPublicKey(string $strPublicKeyFile) : void
    {
        if (is_readable($strPublicKeyFile)) {
            $this->strPublicKey = file_get_contents($strPublicKeyFile);
            $this->bUseJWT = true;
        } else {
            trigger_error("The file [$strPublicKeyFile] doesn't exist or is not readable!", E_USER_ERROR);
        }
    }

    public function setPrivateKey(string $strPrivateKey) : void
    {
        $this->strPrivateKey = $strPrivateKey;
    }

    public function setPublicKey(string $strPublicKey) : void
    {
        $this->strPublicKey = $strPublicKey;
    }

    public function enableEncoding(bool $bEncode) : void
    {
        $this->bUseJWT = $bEncode;
    }

    /**
     * Builds the RS256 encoded JWT with given payload and private key.
     * @return string
     */
    public function encodeRS256JWT(array $aPayload) : string
    {
        // 1. build and encode Header
        $aJwtHeader = ["typ" => "JWT", "alg" => "RS256"];
        $strJwtHeader = $this->encodeJSON($aJwtHeader);
        $strJwtHeader64 = $this->encodeBase64Url($strJwtHeader);

        // 2. encode the payload / claim
        $strJwtPayload = $this->encodeJSON($aPayload);
        $strJwtPayload64 = $this->encodeBase64Url($strJwtPayload);

        // 3. sign both values for the signature
        $strJwtSignature = '';
        openssl_sign(
            $strJwtHeader64 . '.' . $strJwtPayload64,
            $strJwtSignature,
            $this->strPrivateKey,
            OPENSSL_ALGO_SHA256
            );
        $strJwtSignature64 = $this->encodeBase64Url($strJwtSignature);

        return implode('.', [$strJwtHeader64, $strJwtPayload64, $strJwtSignature64]);
    }

    /**
     * Verifies the given JWT and returns the extracted payload in case of success.
     * @param string $strJWT
     * @param string $strPrivateKey
     * @return array|false
     */
    public function verifyRS256JWT(string $strJWT) : array|false
    {
        // 1. split JWT into header, payload and signature
        list($strJwtHeader64, $strJwtPayload64, $strJwtSignature64) = explode('.', $strJWT);

        // 2. decode the signature
        $strJwtSignature = $this->decodeBase64Url($strJwtSignature64);

        // 3. verify the data and signature with the public key
        $iVerfied = openssl_verify(
            $strJwtHeader64 . '.' . $strJwtPayload64,
            $strJwtSignature,
            $this->strPublicKey,
            OPENSSL_ALGO_SHA256
            );
        $aPayload = false;
        if ($iVerfied === -1) {
            trigger_error('Error verifying the JWT: ' . openssl_error_string(), E_USER_ERROR);
        } else if ($iVerfied === 1) {
            // 4. JWT is verified - decode the payload
            $strJwtPayload = $this->decodeBase64Url($strJwtPayload64);
            $aPayload = $this->decodeJSON($strJwtPayload);
        }
        return $aPayload;
    }

    /**
     * Returns a string containing the JSON representation of a value.
     * @param mixed $value
     * @return string
     */
    protected function encodeJSON($value) : string
    {
        $strEncoded = json_encode($value, JSON_UNESCAPED_SLASHES);
        if ($strEncoded === false) {
            throw new \RuntimeException('Error encoding value to JSO: ' . json_last_error_msg());
        }
        return $strEncoded;
    }

    /**
     * Encodes string to save base64URL
     * @param string $strInput
     * @return string
     */
    protected function encodeBase64Url(string $strInput) : string
    {
        return str_replace('=', '', strtr(base64_encode($strInput), '+/', '-_'));
    }

    /**
     * Returns a decoded JSON string as array .
     * @param string $strJSON
     * @return array|false
     */
    protected function decodeJSON(string $strJSON) : array|false
    {
        $decoded = json_decode($strJSON, true, 64, JSON_INVALID_UTF8_IGNORE);
        if ($decoded === null) {
            throw new \RuntimeException('Error decoding JSON: ' . json_last_error_msg());
        }
        return $decoded;
    }

    /**
     * Decodes save base64URL to string.
     * @param string $strInput
     * @return string
     */
    protected function decodeBase64Url(string $strInput) : string
    {
        return base64_decode(strtr($strInput, '-_,', '+/='));
    }
}

1			<?php
2
3			declare(strict_types=1);
4
5			namespace SKien\Formgenerator;
6
7			/**
8			*
9			* @author Stefanius <[email protected]>
10			* @copyright MIT License - see the LICENSE file for details
11			*/
12			class FormSecrets extends FormInput
13			{
14			protected string $strPrivateKey;
15			protected string $strPublicKey;
16			protected bool $bUseJWT = false;
17			protected array $aSecrets = [];
18
19			public function __construct(string $strName = '')
20			{
21			parent::__construct($strName, -1, FormFlags::HIDDEN);
22			}
23
24			public function setData(string $strData) : bool
25			{
26			$aSecrets = false;
27			if ($this->bUseJWT) {
28			$aSecrets = $this->verifyRS256JWT($strData);
29			} else {
30			$aSecrets = $this->decodeJSON($strData);
31			}
32			if ($aSecrets !== false) {
33			$this->aSecrets = $aSecrets;
34			}
35			return $aSecrets !== false;
36			}
37
38			public function getData() : string
39			{
40			$strData = '';
41			if ($this->bUseJWT) {
42			$strData = $this->encodeRS256JWT($this->aSecrets);
43			} else {
44			$strData = $this->encodeJSON($this->aSecrets);
45			}
46			return $strData;
47			}
48
49			public function add(string $strName, mixed $value) : void
50			{
51			$this->aSecrets[$strName] = $value;
52			}
53
54			public function get(string $strName) : mixed
55			{
56			return $this->aSecrets[$strName] ?? null;
57			}
58
59			public function loadPrivateKey(string $strPrivateKeyFile) : void
60			{
61			if (is_readable($strPrivateKeyFile)) {
62			$this->strPrivateKey = file_get_contents($strPrivateKeyFile);
63			$this->bUseJWT = true;
64			} else {
65			trigger_error("The file [$strPrivateKeyFile] doesn't exist or is not readable!", E_USER_ERROR);
66			}
67			}
68
69			public function loadPublicKey(string $strPublicKeyFile) : void
70			{
71			if (is_readable($strPublicKeyFile)) {
72			$this->strPublicKey = file_get_contents($strPublicKeyFile);
73			$this->bUseJWT = true;
74			} else {
75			trigger_error("The file [$strPublicKeyFile] doesn't exist or is not readable!", E_USER_ERROR);
76			}
77			}
78
79			public function setPrivateKey(string $strPrivateKey) : void
80			{
81			$this->strPrivateKey = $strPrivateKey;
82			}
83
84			public function setPublicKey(string $strPublicKey) : void
85			{
86			$this->strPublicKey = $strPublicKey;
87			}
88
89			public function enableEncoding(bool $bEncode) : void
90			{
91			$this->bUseJWT = $bEncode;
92			}
93
94			/**
95			* Builds the RS256 encoded JWT with given payload and private key.
96			* @return string
97			*/
98			public function encodeRS256JWT(array $aPayload) : string
99			{
100			// 1. build and encode Header
101			$aJwtHeader = ["typ" => "JWT", "alg" => "RS256"];
102			$strJwtHeader = $this->encodeJSON($aJwtHeader);
103			$strJwtHeader64 = $this->encodeBase64Url($strJwtHeader);
104
105			// 2. encode the payload / claim
106			$strJwtPayload = $this->encodeJSON($aPayload);
107			$strJwtPayload64 = $this->encodeBase64Url($strJwtPayload);
108
109			// 3. sign both values for the signature
110			$strJwtSignature = '';
111			openssl_sign(
112			$strJwtHeader64 . '.' . $strJwtPayload64,
113			$strJwtSignature,
114			$this->strPrivateKey,
115			OPENSSL_ALGO_SHA256
116			);
117			$strJwtSignature64 = $this->encodeBase64Url($strJwtSignature);
118
119			return implode('.', [$strJwtHeader64, $strJwtPayload64, $strJwtSignature64]);
120			}
121
122			/**
123			* Verifies the given JWT and returns the extracted payload in case of success.
124			* @param string $strJWT
125			* @param string $strPrivateKey
126			* @return array\|false
127			*/
128			public function verifyRS256JWT(string $strJWT) : array\|false
129			{
130			// 1. split JWT into header, payload and signature
131			list($strJwtHeader64, $strJwtPayload64, $strJwtSignature64) = explode('.', $strJWT);
132
133			// 2. decode the signature
134			$strJwtSignature = $this->decodeBase64Url($strJwtSignature64);
135
136			// 3. verify the data and signature with the public key
137			$iVerfied = openssl_verify(
138			$strJwtHeader64 . '.' . $strJwtPayload64,
139			$strJwtSignature,
140			$this->strPublicKey,
141			OPENSSL_ALGO_SHA256
142			);
143			$aPayload = false;
144			if ($iVerfied === -1) {
145			trigger_error('Error verifying the JWT: ' . openssl_error_string(), E_USER_ERROR);
146			} else if ($iVerfied === 1) {
147			// 4. JWT is verified - decode the payload
148			$strJwtPayload = $this->decodeBase64Url($strJwtPayload64);
149			$aPayload = $this->decodeJSON($strJwtPayload);
150			}
151			return $aPayload;
152			}
153
154			/**
155			* Returns a string containing the JSON representation of a value.
156			* @param mixed $value
157			* @return string
158			*/
159			protected function encodeJSON($value) : string
160			{
161			$strEncoded = json_encode($value, JSON_UNESCAPED_SLASHES);
162			if ($strEncoded === false) {
163			throw new \RuntimeException('Error encoding value to JSO: ' . json_last_error_msg());
164			}
165			return $strEncoded;
166			}
167
168			/**
169			* Encodes string to save base64URL
170			* @param string $strInput
171			* @return string
172			*/
173			protected function encodeBase64Url(string $strInput) : string
174			{
175			return str_replace('=', '', strtr(base64_encode($strInput), '+/', '-_'));
176			}
177
178			/**
179			* Returns a decoded JSON string as array .
180			* @param string $strJSON
181			* @return array\|false
182			*/
183			protected function decodeJSON(string $strJSON) : array\|false
184			{
185			$decoded = json_decode($strJSON, true, 64, JSON_INVALID_UTF8_IGNORE);
186			if ($decoded === null) {
187			throw new \RuntimeException('Error decoding JSON: ' . json_last_error_msg());
188			}
189			return $decoded;
190			}
191
192			/**
193			* Decodes save base64URL to string.
194			* @param string $strInput
195			* @return string
196			*/
197			protected function decodeBase64Url(string $strInput) : string
198			{
199			return base64_decode(strtr($strInput, '-_,', '+/='));
200			}
201			}

Stefanius67 / Formgenerator

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FormSecrets::getData() A

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Importance

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