Consent::__construct() - Code Metrics - Inspection of "Prepare for SSP 2.0" - simplesamlphp/simplesamlphp-module-consent - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 22ef39...b9d93e )

by Tim

created 2020-02-17 14:21 UTC

Consent::__construct() F

↳ Parent: Consent

Complexity

Conditions	17
Paths	479

Size

Total Lines	79
Code Lines	49

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	17
eloc	49
c	1
b	0
f	0
nc	479
nop	2
dl	0
loc	79
rs	1.7736

How to fix Long Method Complexity

<?php

/**
 * Consent Authentication Processing filter
 *
 * Filter for requesting the user to give consent before attributes are
 * released to the SP.
 *
 * @package SimpleSAMLphp
 */

namespace SimpleSAML\Module\consent\Auth\Process;

use SimpleSAML\Logger;
use SimpleSAML\Module;
use SimpleSAML\Stats;
use SimpleSAML\Utils;
use Webmozart\Assert\Assert;

class Consent extends \SimpleSAML\Auth\ProcessingFilter
{
    /**
     * Button to receive focus
     *
     * @var string|null
     */
    private $focus = null;

    /**
     * Include attribute values
     *
     * @var bool
     */
    private $includeValues = false;

    /**
     * Check remember consent
     *
     * @var bool
     */
    private $checked = false;

    /**
     * Consent backend storage configuration
     *
     * @var \SimpleSAML\Module\consent\Store|null
     */
    private $store = null;

    /**
     * Attributes where the value should be hidden
     *
     * @var array
     */
    private $hiddenAttributes = [];

    /**
     * Attributes which should not require consent
     *
     * @var array
     */
    private $noconsentattributes = [];

    /**
     * Whether we should show the "about service"-link on the no consent page.
     *
     * @var bool
     */
    private $showNoConsentAboutService = true;


    /**
     * Initialize consent filter.
     *
     * Validates and parses the configuration.
     *
     * @param array $config Configuration information.
     * @param mixed $reserved For future use.
     *
     * @throws \SimpleSAML\Error\Exception if the configuration is not valid.
     */
    public function __construct(array $config, array $reserved)
    {
        parent::__construct($config, $reserved);

        if (array_key_exists('includeValues', $config)) {
            if (!is_bool($config['includeValues'])) {
                throw new \SimpleSAML\Error\Exception(
                    'Consent: includeValues must be boolean. ' .
                    var_export($config['includeValues'], true) . ' given.'
                );
            }
            $this->includeValues = $config['includeValues'];
        }

        if (array_key_exists('checked', $config)) {
            if (!is_bool($config['checked'])) {
                throw new \SimpleSAML\Error\Exception(
                    'Consent: checked must be boolean. ' .
                    var_export($config['checked'], true) . ' given.'
                );
            }
            $this->checked = $config['checked'];
        }

        if (array_key_exists('focus', $config)) {
            if (!in_array($config['focus'], ['yes', 'no'], true)) {
                throw new \SimpleSAML\Error\Exception(
                    'Consent: focus must be a string with values `yes` or `no`. ' .
                    var_export($config['focus'], true) . ' given.'
                );
            }
            $this->focus = $config['focus'];
        }

        if (array_key_exists('hiddenAttributes', $config)) {
            if (!is_array($config['hiddenAttributes'])) {
                throw new \SimpleSAML\Error\Exception(
                    'Consent: hiddenAttributes must be an array. ' .
                    var_export($config['hiddenAttributes'], true) . ' given.'
                );
            }
            $this->hiddenAttributes = $config['hiddenAttributes'];
        }

        if (array_key_exists('attributes.exclude', $config)) {
            if (!is_array($config['attributes.exclude'])) {
                throw new \SimpleSAML\Error\Exception(
                    'Consent: attributes.exclude must be an array. ' .
                    var_export($config['attributes.exclude'], true) . ' given.'
                );
            }
            $this->noconsentattributes = $config['attributes.exclude'];
        } elseif (array_key_exists('noconsentattributes', $config)) {
            Logger::warning("The 'noconsentattributes' option has been deprecated in favour of 'attributes.exclude'.");
            if (!is_array($config['noconsentattributes'])) {
                throw new \SimpleSAML\Error\Exception(
                    'Consent: noconsentattributes must be an array. ' .
                    var_export($config['noconsentattributes'], true) . ' given.'
                );
            }
            $this->noconsentattributes = $config['noconsentattributes'];
        }

        if (array_key_exists('store', $config)) {
            try {
                $this->store = \SimpleSAML\Module\consent\Store::parseStoreConfig($config['store']);
            } catch (\Exception $e) {
                Logger::error(
                    'Consent: Could not create consent storage: ' .
                    $e->getMessage()
                );
            }
        }

        if (array_key_exists('showNoConsentAboutService', $config)) {
            if (!is_bool($config['showNoConsentAboutService'])) {
                throw new \SimpleSAML\Error\Exception('Consent: showNoConsentAboutService must be a boolean.');
            }
            $this->showNoConsentAboutService = $config['showNoConsentAboutService'];
        }
    }


    /**
     * Helper function to check whether consent is disabled.
     *
     * @param mixed  $option The consent.disable option. Either an array of array, an array or a boolean.
     * @param string $entityId The entityID of the SP/IdP.
     *
     * @return boolean True if disabled, false if not.
     */
    private static function checkDisable($option, string $entityId): bool
    {
        if (is_array($option)) {
            // Check if consent.disable array has one element that is an array
            if (count($option) === count($option, COUNT_RECURSIVE)) {
                // Array is not multidimensional.  Simple in_array search suffices
                return in_array($entityId, $option, true);
            }

            // Array contains at least one element that is an array, verify both possibilities
            if (in_array($entityId, $option, true)) {
                return true;
            }

            // Search in multidimensional arrays
            foreach ($option as $optionToTest) {
                if (!is_array($optionToTest)) {
                    continue; // bad option
                }

                if (!array_key_exists('type', $optionToTest)) {
                    continue; // option has no type
                }

                // Option has a type - switch processing depending on type value :
                if ($optionToTest['type'] === 'regex') {
                    // regex-based consent disabling

                    if (!array_key_exists('pattern', $optionToTest)) {
                        continue; // no pattern defined
                    }

                    if (preg_match($optionToTest['pattern'], $entityId) === 1) {
                        return true;
                    }
                } else {
                    // option type is not supported
                    continue;
                }
            } // end foreach

            // Base case : no match
            return false;
        } else {
            return (bool) $option;
        }
    }


    /**
     * Process a authentication response
     *
     * This function saves the state, and redirects the user to the page where the user can authorize the release of
     * the attributes. If storage is used and the consent has already been given the user is passed on.
     *
     * @param array &$state The state of the response.
     *
     * @return void
     *
     * @throws \SimpleSAML\Error\NoPassive if the request was passive and consent is needed.
     */
    public function process(array &$state): void
    {
        Assert::keyExists($state, 'UserID');
        Assert::keyExists($state, 'Destination');
        Assert::keyExists($state['Destination'], 'entityid');
        Assert::keyExists($state['Destination'], 'metadata-set');
        Assert::keyExists($state['Source'], 'entityid');
        Assert::keyExists($state['Source'], 'metadata-set');

        $spEntityId = $state['Destination']['entityid'];
        $idpEntityId = $state['Source']['entityid'];

        $metadata = \SimpleSAML\Metadata\MetaDataStorageHandler::getMetadataHandler();

        /**
         * If the consent module is active on a bridge $state['saml:sp:IdP']
         * will contain an entry id for the remote IdP. If not, then the
         * consent module is active on a local IdP and nothing needs to be
         * done.
         */
        if (isset($state['saml:sp:IdP'])) {
            $idpEntityId = $state['saml:sp:IdP'];
            $idpmeta = $metadata->getMetaData($idpEntityId, 'saml20-idp-remote');
            $state['Source'] = $idpmeta;
        }

        $statsData = ['spEntityID' => $spEntityId];

        // Do not use consent if disabled
        if (
            isset($state['Source']['consent.disable']) &&
            self::checkDisable($state['Source']['consent.disable'], $spEntityId)
        ) {
            Logger::debug('Consent: Consent disabled for entity ' . $spEntityId . ' with IdP ' . $idpEntityId);
            Stats::log('consent:disabled', $statsData);
            return;
        }
        if (
            isset($state['Destination']['consent.disable']) &&
            self::checkDisable($state['Destination']['consent.disable'], $idpEntityId)
        ) {
            Logger::debug('Consent: Consent disabled for entity ' . $spEntityId . ' with IdP ' . $idpEntityId);
            Stats::log('consent:disabled', $statsData);
            return;
        }

        if ($this->store !== null) {
            $source = $state['Source']['metadata-set'] . '|' . $idpEntityId;
            $destination = $state['Destination']['metadata-set'] . '|' . $spEntityId;
            $attributes = $state['Attributes'];

            // Remove attributes that do not require consent
            foreach ($attributes as $attrkey => $attrval) {
                if (in_array($attrkey, $this->noconsentattributes, true)) {
                    unset($attributes[$attrkey]);
                }
            }

            Logger::debug('Consent: userid: ' . $state['UserID']);
            Logger::debug('Consent: source: ' . $source);
            Logger::debug('Consent: destination: ' . $destination);

            $userId = self::getHashedUserID($state['UserID'], $source);
            $targetedId = self::getTargetedID($state['UserID'], $source, $destination);
            $attributeSet = self::getAttributeHash($attributes, $this->includeValues);

            Logger::debug(
                'Consent: hasConsent() [' . $userId . '|' . $targetedId . '|' . $attributeSet . ']'
            );

            try {
                if ($this->store->hasConsent($userId, $targetedId, $attributeSet)) {
                    // Consent already given
                    Logger::stats('consent found');
                    Stats::log('consent:found', $statsData);
                    return;
                }

                Logger::stats('consent notfound');
                Stats::log('consent:notfound', $statsData);

                $state['consent:store'] = $this->store;
                $state['consent:store.userId'] = $userId;
                $state['consent:store.destination'] = $targetedId;
                $state['consent:store.attributeSet'] = $attributeSet;
            } catch (\Exception $e) {
                Logger::error('Consent: Error reading from storage: ' . $e->getMessage());
                Logger::stats('Consent failed');
                Stats::log('consent:failed', $statsData);
            }
        } else {
            Logger::stats('consent nostorage');
            Stats::log('consent:nostorage', $statsData);
        }

        $state['consent:focus'] = $this->focus;
        $state['consent:checked'] = $this->checked;
        $state['consent:hiddenAttributes'] = $this->hiddenAttributes;
        $state['consent:noconsentattributes'] = $this->noconsentattributes;
        $state['consent:showNoConsentAboutService'] = $this->showNoConsentAboutService;

        // user interaction necessary. Throw exception on isPassive request
        if (isset($state['isPassive']) && $state['isPassive'] === true) {
            Stats::log('consent:nopassive', $statsData);
            throw new Module\saml\Error\NoPassive(
                \SAML2\Constants::STATUS_REQUESTER,
                'Unable to give consent on passive request.'
            );
        }

        // Save state and redirect
        $id = \SimpleSAML\Auth\State::saveState($state, 'consent:request');
        $url = Module::getModuleURL('consent/getconsent.php');
        Utils\HTTP::redirectTrustedURL($url, ['StateId' => $id]);
    }


    /**
     * Generate a unique identifier of the user.
     *
     * @param string $userid The user id.
     * @param string $source The source id.
     *
     * @return string SHA1 of the user id, source id and salt.
     */
    public static function getHashedUserID(string $userid, string $source): string
    {
        return hash('sha1', $userid . '|' . Utils\Config::getSecretSalt() . '|' . $source);
    }


    /**
     * Generate a unique targeted identifier.
     *
     * @param string $userid The user id.
     * @param string $source The source id.
     * @param string $destination The destination id.
     *
     * @return string SHA1 of the user id, source id, destination id and salt.
     */
    public static function getTargetedID(string $userid, string $source, string $destination): string
    {
        return hash('sha1', $userid . '|' . Utils\Config::getSecretSalt() . '|' . $source . '|' . $destination);
    }


    /**
     * Generate unique identifier for attributes.
     *
     * Create a hash value for the attributes that changes when attributes are added or removed. If the attribute
     * values are included in the hash, the hash will change if the values change.
     *
     * @param array  $attributes The attributes.
     * @param bool   $includeValues Whether or not to include the attribute value in the generation of the hash.
     *
     * @return string SHA1 of the user id, source id, destination id and salt.
     */
    public static function getAttributeHash(array $attributes, bool $includeValues = false): string
    {
        if ($includeValues) {
            foreach ($attributes as &$values) {
                sort($values);
            }
            ksort($attributes);
            $hashBase = serialize($attributes);
        } else {
            $names = array_keys($attributes);
            sort($names);
            $hashBase = implode('|', $names);
        }
        return hash('sha1', $hashBase);
    }
}


1			<?php
2
3			/**
4			* Consent Authentication Processing filter
5			*
6			* Filter for requesting the user to give consent before attributes are
7			* released to the SP.
8			*
9			* @package SimpleSAMLphp
10			*/
11
12			namespace SimpleSAML\Module\consent\Auth\Process;
13
14			use SimpleSAML\Logger;
15			use SimpleSAML\Module;
16			use SimpleSAML\Stats;
17			use SimpleSAML\Utils;
18			use Webmozart\Assert\Assert;
19
20			class Consent extends \SimpleSAML\Auth\ProcessingFilter
21			{
22			/**
23			* Button to receive focus
24			*
25			* @var string\|null
26			*/
27			private $focus = null;
28
29			/**
30			* Include attribute values
31			*
32			* @var bool
33			*/
34			private $includeValues = false;
35
36			/**
37			* Check remember consent
38			*
39			* @var bool
40			*/
41			private $checked = false;
42
43			/**
44			* Consent backend storage configuration
45			*
46			* @var \SimpleSAML\Module\consent\Store\|null
47			*/
48			private $store = null;
49
50			/**
51			* Attributes where the value should be hidden
52			*
53			* @var array
54			*/
55			private $hiddenAttributes = [];
56
57			/**
58			* Attributes which should not require consent
59			*
60			* @var array
61			*/
62			private $noconsentattributes = [];
63
64			/**
65			* Whether we should show the "about service"-link on the no consent page.
66			*
67			* @var bool
68			*/
69			private $showNoConsentAboutService = true;
70
71
72			/**
73			* Initialize consent filter.
74			*
75			* Validates and parses the configuration.
76			*
77			* @param array $config Configuration information.
78			* @param mixed $reserved For future use.
79			*
80			* @throws \SimpleSAML\Error\Exception if the configuration is not valid.
81			*/
82			public function __construct(array $config, array $reserved)
83			{
84			parent::__construct($config, $reserved);
85
86			if (array_key_exists('includeValues', $config)) {
87			if (!is_bool($config['includeValues'])) {
88			throw new \SimpleSAML\Error\Exception(
89			'Consent: includeValues must be boolean. ' .
90			var_export($config['includeValues'], true) . ' given.'
91			);
92			}
93			$this->includeValues = $config['includeValues'];
94			}
95
96			if (array_key_exists('checked', $config)) {
97			if (!is_bool($config['checked'])) {
98			throw new \SimpleSAML\Error\Exception(
99			'Consent: checked must be boolean. ' .
100			var_export($config['checked'], true) . ' given.'
101			);
102			}
103			$this->checked = $config['checked'];
104			}
105
106			if (array_key_exists('focus', $config)) {
107			if (!in_array($config['focus'], ['yes', 'no'], true)) {
108			throw new \SimpleSAML\Error\Exception(
109			'Consent: focus must be a string with values `yes` or `no`. ' .
110			var_export($config['focus'], true) . ' given.'
111			);
112			}
113			$this->focus = $config['focus'];
114			}
115
116			if (array_key_exists('hiddenAttributes', $config)) {
117			if (!is_array($config['hiddenAttributes'])) {
118			throw new \SimpleSAML\Error\Exception(
119			'Consent: hiddenAttributes must be an array. ' .
120			var_export($config['hiddenAttributes'], true) . ' given.'
121			);
122			}
123			$this->hiddenAttributes = $config['hiddenAttributes'];
124			}
125
126			if (array_key_exists('attributes.exclude', $config)) {
127			if (!is_array($config['attributes.exclude'])) {
128			throw new \SimpleSAML\Error\Exception(
129			'Consent: attributes.exclude must be an array. ' .
130			var_export($config['attributes.exclude'], true) . ' given.'
131			);
132			}
133			$this->noconsentattributes = $config['attributes.exclude'];
134			} elseif (array_key_exists('noconsentattributes', $config)) {
135			Logger::warning("The 'noconsentattributes' option has been deprecated in favour of 'attributes.exclude'.");
136			if (!is_array($config['noconsentattributes'])) {
137			throw new \SimpleSAML\Error\Exception(
138			'Consent: noconsentattributes must be an array. ' .
139			var_export($config['noconsentattributes'], true) . ' given.'
140			);
141			}
142			$this->noconsentattributes = $config['noconsentattributes'];
143			}
144
145			if (array_key_exists('store', $config)) {
146			try {
147			$this->store = \SimpleSAML\Module\consent\Store::parseStoreConfig($config['store']);
148			} catch (\Exception $e) {
149			Logger::error(
150			'Consent: Could not create consent storage: ' .
151			$e->getMessage()
152			);
153			}
154			}
155
156			if (array_key_exists('showNoConsentAboutService', $config)) {
157			if (!is_bool($config['showNoConsentAboutService'])) {
158			throw new \SimpleSAML\Error\Exception('Consent: showNoConsentAboutService must be a boolean.');
159			}
160			$this->showNoConsentAboutService = $config['showNoConsentAboutService'];
161			}
162			}
163
164
165			/**
166			* Helper function to check whether consent is disabled.
167			*
168			* @param mixed $option The consent.disable option. Either an array of array, an array or a boolean.
169			* @param string $entityId The entityID of the SP/IdP.
170			*
171			* @return boolean True if disabled, false if not.
172			*/
173			private static function checkDisable($option, string $entityId): bool
174			{
175			if (is_array($option)) {
176			// Check if consent.disable array has one element that is an array
177			if (count($option) === count($option, COUNT_RECURSIVE)) {
178			// Array is not multidimensional. Simple in_array search suffices
179			return in_array($entityId, $option, true);
180			}
181
182			// Array contains at least one element that is an array, verify both possibilities
183			if (in_array($entityId, $option, true)) {
184			return true;
185			}
186
187			// Search in multidimensional arrays
188			foreach ($option as $optionToTest) {
189			if (!is_array($optionToTest)) {
190			continue; // bad option
191			}
192
193			if (!array_key_exists('type', $optionToTest)) {
194			continue; // option has no type
195			}
196
197			// Option has a type - switch processing depending on type value :
198			if ($optionToTest['type'] === 'regex') {
199			// regex-based consent disabling
200
201			if (!array_key_exists('pattern', $optionToTest)) {
202			continue; // no pattern defined
203			}
204
205			if (preg_match($optionToTest['pattern'], $entityId) === 1) {
206			return true;
207			}
208			} else {
209			// option type is not supported
210			continue;
211			}
212			} // end foreach
213
214			// Base case : no match
215			return false;
216			} else {
217			return (bool) $option;
218			}
219			}
220
221
222			/**
223			* Process a authentication response
224			*
225			* This function saves the state, and redirects the user to the page where the user can authorize the release of
226			* the attributes. If storage is used and the consent has already been given the user is passed on.
227			*
228			* @param array &$state The state of the response.
229			*
230			* @return void
231			*
232			* @throws \SimpleSAML\Error\NoPassive if the request was passive and consent is needed.
233			*/
234			public function process(array &$state): void
235			{
236			Assert::keyExists($state, 'UserID');
237			Assert::keyExists($state, 'Destination');
238			Assert::keyExists($state['Destination'], 'entityid');
239			Assert::keyExists($state['Destination'], 'metadata-set');
240			Assert::keyExists($state['Source'], 'entityid');
241			Assert::keyExists($state['Source'], 'metadata-set');
242
243			$spEntityId = $state['Destination']['entityid'];
244			$idpEntityId = $state['Source']['entityid'];
245
246			$metadata = \SimpleSAML\Metadata\MetaDataStorageHandler::getMetadataHandler();
247
248			/**
249			* If the consent module is active on a bridge $state['saml:sp:IdP']
250			* will contain an entry id for the remote IdP. If not, then the
251			* consent module is active on a local IdP and nothing needs to be
252			* done.
253			*/
254			if (isset($state['saml:sp:IdP'])) {
255			$idpEntityId = $state['saml:sp:IdP'];
256			$idpmeta = $metadata->getMetaData($idpEntityId, 'saml20-idp-remote');
257			$state['Source'] = $idpmeta;
258			}
259
260			$statsData = ['spEntityID' => $spEntityId];
261
262			// Do not use consent if disabled
263			if (
264			isset($state['Source']['consent.disable']) &&
265			self::checkDisable($state['Source']['consent.disable'], $spEntityId)
266			) {
267			Logger::debug('Consent: Consent disabled for entity ' . $spEntityId . ' with IdP ' . $idpEntityId);
268			Stats::log('consent:disabled', $statsData);
269			return;
270			}
271			if (
272			isset($state['Destination']['consent.disable']) &&
273			self::checkDisable($state['Destination']['consent.disable'], $idpEntityId)
274			) {
275			Logger::debug('Consent: Consent disabled for entity ' . $spEntityId . ' with IdP ' . $idpEntityId);
276			Stats::log('consent:disabled', $statsData);
277			return;
278			}
279
280			if ($this->store !== null) {
281			$source = $state['Source']['metadata-set'] . '\|' . $idpEntityId;
282			$destination = $state['Destination']['metadata-set'] . '\|' . $spEntityId;
283			$attributes = $state['Attributes'];
284
285			// Remove attributes that do not require consent
286			foreach ($attributes as $attrkey => $attrval) {
287			if (in_array($attrkey, $this->noconsentattributes, true)) {
288			unset($attributes[$attrkey]);
289			}
290			}
291
292			Logger::debug('Consent: userid: ' . $state['UserID']);
293			Logger::debug('Consent: source: ' . $source);
294			Logger::debug('Consent: destination: ' . $destination);
295
296			$userId = self::getHashedUserID($state['UserID'], $source);
297			$targetedId = self::getTargetedID($state['UserID'], $source, $destination);
298			$attributeSet = self::getAttributeHash($attributes, $this->includeValues);
299
300			Logger::debug(
301			'Consent: hasConsent() [' . $userId . '\|' . $targetedId . '\|' . $attributeSet . ']'
302			);
303
304			try {
305			if ($this->store->hasConsent($userId, $targetedId, $attributeSet)) {
306			// Consent already given
307			Logger::stats('consent found');
308			Stats::log('consent:found', $statsData);
309			return;
310			}
311
312			Logger::stats('consent notfound');
313			Stats::log('consent:notfound', $statsData);
314
315			$state['consent:store'] = $this->store;
316			$state['consent:store.userId'] = $userId;
317			$state['consent:store.destination'] = $targetedId;
318			$state['consent:store.attributeSet'] = $attributeSet;
319			} catch (\Exception $e) {
320			Logger::error('Consent: Error reading from storage: ' . $e->getMessage());
321			Logger::stats('Consent failed');
322			Stats::log('consent:failed', $statsData);
323			}
324			} else {
325			Logger::stats('consent nostorage');
326			Stats::log('consent:nostorage', $statsData);
327			}
328
329			$state['consent:focus'] = $this->focus;
330			$state['consent:checked'] = $this->checked;
331			$state['consent:hiddenAttributes'] = $this->hiddenAttributes;
332			$state['consent:noconsentattributes'] = $this->noconsentattributes;
333			$state['consent:showNoConsentAboutService'] = $this->showNoConsentAboutService;
334
335			// user interaction necessary. Throw exception on isPassive request
336			if (isset($state['isPassive']) && $state['isPassive'] === true) {
337			Stats::log('consent:nopassive', $statsData);
338			throw new Module\saml\Error\NoPassive(
339			\SAML2\Constants::STATUS_REQUESTER,
340			'Unable to give consent on passive request.'
341			);
342			}
343
344			// Save state and redirect
345			$id = \SimpleSAML\Auth\State::saveState($state, 'consent:request');
346			$url = Module::getModuleURL('consent/getconsent.php');
347			Utils\HTTP::redirectTrustedURL($url, ['StateId' => $id]);
348			}
349
350
351			/**
352			* Generate a unique identifier of the user.
353			*
354			* @param string $userid The user id.
355			* @param string $source The source id.
356			*
357			* @return string SHA1 of the user id, source id and salt.
358			*/
359			public static function getHashedUserID(string $userid, string $source): string
360			{
361			return hash('sha1', $userid . '\|' . Utils\Config::getSecretSalt() . '\|' . $source);
362			}
363
364
365			/**
366			* Generate a unique targeted identifier.
367			*
368			* @param string $userid The user id.
369			* @param string $source The source id.
370			* @param string $destination The destination id.
371			*
372			* @return string SHA1 of the user id, source id, destination id and salt.
373			*/
374			public static function getTargetedID(string $userid, string $source, string $destination): string
375			{
376			return hash('sha1', $userid . '\|' . Utils\Config::getSecretSalt() . '\|' . $source . '\|' . $destination);
377			}
378
379
380			/**
381			* Generate unique identifier for attributes.
382			*
383			* Create a hash value for the attributes that changes when attributes are added or removed. If the attribute
384			* values are included in the hash, the hash will change if the values change.
385			*
386			* @param array $attributes The attributes.
387			* @param bool $includeValues Whether or not to include the attribute value in the generation of the hash.
388			*
389			* @return string SHA1 of the user id, source id, destination id and salt.
390			*/
391			public static function getAttributeHash(array $attributes, bool $includeValues = false): string
392			{
393			if ($includeValues) {
394			foreach ($attributes as &$values) {
395			sort($values);
396			}
397			ksort($attributes);
398			$hashBase = serialize($attributes);
399			} else {
400			$names = array_keys($attributes);
401			sort($names);
402			$hashBase = implode('\|', $names);
403			}
404			return hash('sha1', $hashBase);
405			}
406			}
407

simplesamlphp / simplesamlphp-module-consent

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Consent::__construct() F

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