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                <?php namespace nyx\auth\id\protocols\oauth2\providers;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // Internal dependencies  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use nyx\auth\id\protocols\oauth2;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use nyx\auth;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * LinkedIn Identity Provider (OAuth 2.0)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package     Nyx\Auth  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @version     0.1.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author      Michal Chojnacki <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright   2012-2017 Nyx Dev Team  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link        https://github.com/unyx/nyx  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class LinkedIn extends oauth2\Provider  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * {@inheritDoc} | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const SCOPE_SEPARATOR = ' ';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * {@inheritDoc} | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const URL_AUTHORIZE = 'https://www.linkedin.com/oauth/v2/authorization';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const URL_EXCHANGE  = 'https://www.linkedin.com/oauth/v2/accessToken';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const URL_IDENTIFY  = 'https://api.linkedin.com/v1/people';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * {@inheritDoc} | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const IDENTITY = auth\id\identities\LinkedIn::class;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * {@inheritDoc} | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $defaultScopes = ['r_basicprofile', 'r_emailaddress'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * {@inheritDoc} | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getIdentifyUrl() : string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $fields = [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'id',                   'first-name',   'last-name',    'formatted-name',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'email-address',        'headline',     'location',     'industry',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'public-profile-url',   'picture-url',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Talk about proprietary 'standards'...  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return static::URL_IDENTIFY.'/~:('.implode(',', $fields).')'; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * {@inheritDoc} | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                        
            
                                                                    
                                                                                                        
            
            
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                View Code Duplication | 
                    protected function getDefaultRequestOptions(auth\interfaces\Token $token = null) : array  | 
            
                            
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                    { | 
            
            
                                                        
            
                                    
            
            
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                        return array_merge_recursive(parent::getDefaultRequestOptions($token), [  | 
            
            
                                                        
            
                                    
            
            
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                            'headers' => [  | 
            
            
                                                        
            
                                    
            
            
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                                'x-li-format' => 'json'  | 
            
            
                                                        
            
                                    
            
            
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                            ]  | 
            
            
                                                        
            
                                    
            
            
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                        ]);  | 
            
            
                                                        
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.