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<?php |
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namespace SimpleSAML\Module\casserver\Cas\Ticket; |
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use InvalidArgumentException; |
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use SimpleSAML\Configuration; |
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use SimpleSAML\Logger; |
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use SimpleSAML\Module; |
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/** |
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* Ticket store that delegates to other ticket stores. |
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* Allows you to use multiple source for redundancy or allows a transition from one source to another. |
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*/ |
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class DelegatingTicketStore extends TicketStore |
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{ |
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/** |
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* @var string Delegate to 'all', 'first', or a named entry. |
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*/ |
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private $delegateTo = 'all'; |
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/** |
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* @var TicketStore[] |
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*/ |
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private $ticketStores = []; |
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/** |
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* @var TicketStore |
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*/ |
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private $primaryDelegate; |
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/** |
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* @param \SimpleSAML\Configuration $casConfig The cas configuration. |
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*/ |
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public function __construct(Configuration $casConfig) |
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{ |
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$config = $casConfig->getConfigItem('ticketstore'); |
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$this->delegateTo = $config->getString('delegateTo', 'all'); |
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/** @var $storeConfig Configuration */ |
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foreach ($config->getArray('ticketStores') as $name => $storeArray) { |
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// TicketStore expects the store config to be in a specific item |
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$storeConfig = Configuration::loadFromArray(['ticketstore' => $storeArray]); |
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$class = $storeConfig->getConfigItem('ticketstore')->getString('class'); |
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$ticketStoreClass = Module::resolveClass($class, 'Cas_Ticket'); |
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try { |
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$ticketStore = new $ticketStoreClass($storeConfig); |
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$ticketStores[$name] = $ticketStore; |
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} catch (\Exception $e) { |
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Logger::error("Unable to create ticket store '$name'. Error " . $e->getMessage()); |
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} |
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} |
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assert(!empty($ticketStores)); |
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$this->ticketStores = $ticketStores; |
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if ($this->delegateTo === 'first') { |
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$this->primaryDelegate = reset($ticketStores); |
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} elseif ($this->delegateTo !== 'all') { |
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if (array_key_exists($this->delegateTo, $ticketStores)) { |
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$this->primaryDelegate = $ticketStores[$this->delegateTo]; |
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} else { |
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throw new InvalidArgumentException("No ticket store called '" . $this->delegateTo . "'"); |
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} |
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} |
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} |
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/** |
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* Get the ticket, searching one or all of the delegates |
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* @param string $ticketId The ticket to find |
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* @return array|null The ticket or null if none found |
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* @throws \Exception from any delegate stores ONLY if no delegates worked |
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*/ |
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public function getTicket($ticketId) |
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{ |
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if ($this->delegateTo === 'all') { |
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$ticket = null; |
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$rethrowException = null; |
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foreach ($this->ticketStores as $name => $store) { |
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try { |
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$ticket = $store->getTicket($ticketId); |
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$rethrowException = false; // no need to rethrow, at least one store worked |
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} catch (\Exception $e) { |
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if ($rethrowException === null) { |
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$rethrowException = $e; |
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} |
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Logger::error("Unable to read tickets from '$name'. Trying next store. Error " . $e->getMessage()); |
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} |
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if ($ticket) { |
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return $ticket; |
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} |
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} |
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if ($rethrowException) { |
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throw $rethrowException; |
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} |
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return $ticket; |
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} else { |
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return $this->primaryDelegate->getTicket($ticketId); |
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} |
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} |
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/** |
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* @param array $ticket Ticket to add |
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* @throws \Exception from any delegate stores ONLY if no delegates worked |
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*/ |
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public function addTicket(array $ticket) |
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{ |
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if ($this->delegateTo === 'all') { |
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$rethrowException = null; |
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foreach ($this->ticketStores as $name => $store) { |
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try { |
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$store->addTicket($ticket); |
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$rethrowException = false; // no need to rethrow, at least one store worked |
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} catch (\Exception $e) { |
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if ($rethrowException === null) { |
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$rethrowException = $e; |
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} |
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Logger::error("Unable to add ticket to '$name'. Continue to next store. Error" . $e->getMessage()); |
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} |
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} |
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if ($rethrowException) { |
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throw $rethrowException; |
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} |
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} else { |
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$this->primaryDelegate->addTicket($ticket); |
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} |
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} |
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/** |
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* @param string $ticketId Ticket to delete |
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*/ |
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public function deleteTicket($ticketId) |
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{ |
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if ($this->delegateTo === 'all') { |
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foreach ($this->ticketStores as $name => $store) { |
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try { |
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$store->deleteTicket($ticketId); |
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} catch (\Exception $e) { |
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Logger::error("Unable to delete ticket from '$name'. Trying next store. Error" . $e->getMessage()); |
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} |
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} |
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} else { |
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$this->primaryDelegate->deleteTicket($ticketId); |
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} |
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} |
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} |
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simplesamlphp /
simplesamlphp-module-casserver
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