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<?php |
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namespace Kuleuven\AuthenticationBundle\Service; |
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use Symfony\Component\HttpFoundation\Session\SessionInterface; |
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use Symfony\Component\Ldap\Entry; |
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class LdapAttributesProvider implements AttributesByUsernameProviderInterface, AttributesInjectionProviderInterface |
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{ |
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/** |
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* @var LdapService |
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*/ |
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protected $ldapService; |
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/** |
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* @var array |
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*/ |
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protected $filter; |
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/** |
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* @var bool |
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*/ |
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protected $enabled; |
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/** |
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* @var SessionInterface |
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*/ |
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protected $session; |
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/** |
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* @param LdapService $ldapService |
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* @param array $filter |
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* @param bool $enabled |
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*/ |
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public function __construct(LdapService $ldapService, $filter = [], $enabled = false) |
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{ |
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$this->ldapService = $ldapService; |
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$this->filter = (!empty($filter) ? $filter : []); |
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$this->enabled = $enabled; |
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} |
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/** |
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* @param SessionInterface $session |
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*/ |
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public function setSession(SessionInterface $session) |
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{ |
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$this->session = $session; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isEnabled() |
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{ |
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return $this->enabled; |
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} |
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/** |
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* @param array $filter |
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* @return array |
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*/ |
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public function getAttributesByFilter(array $filter) |
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{ |
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// Return early if filter is empty |
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if (empty($filter)) { |
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return []; |
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} |
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// Get attributes |
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$hash = 'kuleuven-authentication-ldap-results-' . md5(serialize($filter)); |
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if (!empty($this->session) && $this->session->has($hash)) { |
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// Retrieve from the session (cache) |
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$attributes = $this->session->get($hash); |
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} else { |
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// Search LDAP |
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$ldapResults = $this->ldapService->search($filter); |
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// Return empty array if filter returns more than one user |
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if (1 !== $ldapResults->count()) { |
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return []; |
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} |
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// Get the first result |
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/** @var Entry $ldapSingleResult */ |
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$ldapSingleResult = $ldapResults->toArray()['0']; |
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// Extract attributes as strings |
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$attributes = $ldapSingleResult->getAttributes(); |
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array_walk($attributes, function (&$value) { |
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$value = (is_array($value) ? implode(';', $value) : $value); |
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}); |
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// Save to the session (cache) |
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if (!empty($this->session)) { |
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$this->session->set($hash, $attributes); |
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} |
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} |
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// Return attributes |
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return $attributes; |
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} |
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public function getAttributesByUsername($username) |
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{ |
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return $this->getAttributesByFilter(['uid' => $username]); |
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} |
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/** |
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* @return array |
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*/ |
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public function getAttributes() |
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{ |
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return $this->getAttributesByFilter($this->filter); |
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} |
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} |
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