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                <?php declare(strict_types = 1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace AtlassianConnectBundle\Security;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use AtlassianConnectBundle\Service\QSHGenerator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Doctrine\ORM\EntityManagerInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Firebase\JWT\JWT;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\HttpFoundation\Request;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Class JWTSecurityHelper  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                final class JWTSecurityHelper implements JWTSecurityHelperInterface  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var EntityManagerInterface  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $entityManager;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var int|null  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $devTenant;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $environment;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $tenantEntityClass;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * JWTSecurityHelper constructor.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param EntityManagerInterface $entityManager  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param int|null               $devTenant  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string                 $environment  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string                 $tenantEntityClass  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        EntityManagerInterface $entityManager,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ?int $devTenant,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        string $environment,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        string $tenantEntityClass  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->entityManager = $entityManager;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->devTenant = $devTenant;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->environment = $environment;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->tenantEntityClass = $tenantEntityClass;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param Request $request  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function supportsRequest(Request $request): bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $request->query->has('jwt') || | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $request->headers->has('authorization') || | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ($this->devTenant && $this->environment === 'dev');  | 
            
                            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param Request $request  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string|null  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getJWTToken(Request $request): ?string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($request->query->has('jwt')) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return (string) $request->query->get('jwt'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $headerJWT = $this->findJWTInHeader($request);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($headerJWT) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $headerJWT;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->findTenantJWT($request);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param Request $request  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string|null  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function findJWTInHeader(Request $request): ?string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($request->headers->has('authorization')) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $authorizationHeaderArray = \explode(' ', $request->headers->get('authorization')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (\count($authorizationHeaderArray) > 1) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return $authorizationHeaderArray[1];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return null;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param Request $request  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string|null  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private function findTenantJWT(Request $request): ?string  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (!$this->devTenant || $this->environment  !== 'dev') { | 
            
                            
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                            return null;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $tenant = $this->entityManager  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ->getRepository($this->tenantEntityClass)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ->find($this->devTenant);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (!$tenant) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            throw new \RuntimeException(\sprintf('Cant find tenant with id %s - please set atlassian_connect.dev_tenant to false to disable dedicated dev tenant OR add valid id', $this->devTenant)); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return JWT::encode([  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'iss' => $tenant->getClientKey(),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'iat' => \time(),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'exp' => \strtotime('+1 day'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'qsh' => QSHGenerator::generate($request->getRequestUri(), 'GET'),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'sub' => 'admin',  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        ], $tenant->getSharedSecret());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
integervalues, zero is a special case, in particular the following results might be unexpected: