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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                declare(strict_types=1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * BEdita, API-first content management framework  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Copyright 2022 ChannelWeb Srl, Chialab Srl  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This file is part of BEdita: you can redistribute it and/or modify  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * it under the terms of the GNU Lesser General Public License as published  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * by the Free Software Foundation, either version 3 of the License, or  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * (at your option) any later version.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * See LICENSE.LGPL or <http://gnu.org/licenses/lgpl-3.0.html> for more details.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace BEdita\WebTools\Identifier;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use ArrayObject;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Authentication\Identifier\AbstractIdentifier;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use BEdita\SDK\BEditaClientException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use BEdita\WebTools\ApiClientProvider;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Cake\Log\LogTrait;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Cake\Utility\Hash;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Identifies authentication credentials through an OAuth2 external provider.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class OAuth2Identifier extends AbstractIdentifier  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    use LogTrait;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $_defaultConfig = [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'fields' => [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'auth_provider' => 'auth_provider',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'provider_username' => 'provider_username',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'access_token' => 'access_token',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'provider_userdata' => 'provider_userdata',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'autoSignup' => false,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'signupRoles' => [],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'providers' => [], // configured OAuth2 providers  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @inheritDoc  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function identify(array $credentials)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        try { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $result = $this->externalAuth($credentials);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } catch (BEditaClientException $ex) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->log($ex->getMessage(), 'debug');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (!$this->getConfig('autoSignup') || $ex->getCode() !== 401) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return null;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $this->signup($credentials);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $result;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Perform external login via `/auth`.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param array $credentials Identifier credentials  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return \ArrayObject  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function externalAuth(array $credentials): ArrayObject  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $apiClient = ApiClientProvider::getApiClient();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $result = $apiClient->post('/auth', json_encode($credentials), ['Content-Type' => 'application/json']); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $tokens = $result['meta'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $result = $apiClient->get('/auth/user', null, ['Authorization' => sprintf('Bearer %s', $tokens['jwt'])]); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return new ArrayObject($result['data']  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            + compact('tokens') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            + Hash::combine($result, 'included.{n}.attributes.name', 'included.{n}.id', 'included.{n}.type')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Perform OAuth2 signup and login after signup.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param array $credentials Identifier credentials  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return \ArrayObject|null;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    protected function signup(array $credentials): ?ArrayObject  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $data = $this->signupData($credentials);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        try { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $apiClient = ApiClientProvider::getApiClient();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $apiClient->setupTokens([]);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $apiClient->post('/signup', json_encode($data), ['Content-Type' => 'application/json']); | 
            
            
                                                                        
                            
            
                                    
            
            
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                            // login after signup  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $user = $this->externalAuth($credentials);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        } catch (BEditaClientException $ex) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $this->log($ex->getMessage(), 'warning');  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $this->log(json_encode($ex->getAttributes()), 'warning');  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            return null;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $user;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Signup data from OAuth2 provider user data.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param array $credentials Identifier credentials  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function signupData(array $credentials): array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $user = (array)$this->getConfig(sprintf('providers.%s.map', $credentials['auth_provider'])); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($user as $key => $value) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $user[$key] = Hash::get($credentials, sprintf('provider_userdata.%s', $value)); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $roles = (array)$this->getConfig('signupRoles'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return array_filter($user + $credentials + compact('roles')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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