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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * check to see if reading from header field works  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Graviton\SecurityBundle\Authentication\Strategies;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Graviton\TestBundle\Test\WebTestCase;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Class HeaderFieldStrategyTest  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author   List of contributors <https://github.com/libgraviton/graviton/graphs/contributors>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license  http://opensource.org/licenses/gpl-license.php GNU Public License  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link     http://swisscom.ch  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class HeaderFieldStrategyTest extends WebTestCase  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @covers       \Graviton\SecurityBundle\Authentication\Strategies\HeaderFieldStrategy::apply  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @covers       \Graviton\SecurityBundle\Authentication\Strategies\AbstractHttpStrategy::extractFieldInfo  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @covers       \Graviton\SecurityBundle\Authentication\Strategies\AbstractHttpStrategy::validateField  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @dataProvider stringProvider  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $headerFieldValue header to test with  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return void  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function testApply($headerFieldValue)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $server = array(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'HTTP_X_IDP_USERNAME' => $headerFieldValue, //"example-authentication-header",  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $client = static::createClient();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $client->request(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'GET', //method  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            '/', //uri  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            array(), //parameters  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            array(), //files  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $server  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $strategy = new HeaderFieldStrategy(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $client->getKernel()->getContainer()->getParameter('graviton.security.authentication.strategy_key') | 
            
            
                                                                        
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->assertEquals(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $headerFieldValue,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $strategy->apply($client->getRequest())  | 
            
                            
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                        );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return array<string>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                View Code Duplication | 
                    public function stringProvider()  | 
            
                            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'plain string, no special chars' => array('exampleAuthenticationHeader'), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'string with special chars'      => array("$-_.+!*'(),{}|\\^~[]`<>#%;/?:@&=."), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'string with octal chars'        => array("a: \141, A: \101"), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'string with hex chars'          => array("a: \x61, A: \x41") | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: