67 lines
2.1 KiB
PHP
67 lines
2.1 KiB
PHP
<?php
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namespace openid\handlers;
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use openid\exceptions\InvalidOpenIdMessageException;
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use openid\helpers\OpenIdErrorMessages;
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use openid\OpenIdMessage;
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use utils\services\ILogService;
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use utils\services\ICheckPointService;
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/**
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* Class OpenIdMessageHandler
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* Abstract OpenId Message Handler
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* Implements Chain of Responsibility Pattern
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* @package openid\handlers
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*/
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abstract class OpenIdMessageHandler
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{
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protected $successor;
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protected $current_request;
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protected $log_service;
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protected $checkpoint_service;
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public function __construct($successor, ILogService $log_service, ICheckPointService $checkpoint_service)
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{
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$this->successor = $successor;
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$this->log_service = $log_service;
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$this->checkpoint_service = $checkpoint_service;
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}
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/**
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* Implements chain of responsibility logic, if current handler could
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* manage the current message then do it, if not, then pass msg to next sibling
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* @param OpenIdMessage $message
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* @return mixed
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* @throws \openid\exceptions\InvalidOpenIdMessageException
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*/
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public function handleMessage(OpenIdMessage $message)
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{
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if ($this->canHandle($message)) {
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//handle request
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return $this->internalHandle($message);
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} else if (isset($this->successor) && !is_null($this->successor)) {
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return $this->successor->HandleMessage($message);
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}
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$this->log_service->warning_msg(sprintf(OpenIdErrorMessages::UnhandledMessage, $message->toString()));
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$ex = new InvalidOpenIdMessageException(sprintf(OpenIdErrorMessages::UnhandledMessage, $message->toString()));
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$this->checkpoint_service->trackException($ex);
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throw $ex;
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}
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/**
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* Returns true if current message could be managed by this handler
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* false otherwise.
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* @param OpenIdMessage $message
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* @return bool
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*/
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abstract protected function canHandle(OpenIdMessage $message);
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/**
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* Handler specific logic
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* @param OpenIdMessage $message
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* @return mixed
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*/
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abstract protected function internalHandle(OpenIdMessage $message);
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} |