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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // error_reporting(E_ALL); ini_set('display_errors',1); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                require_once __DIR__ . '/../vendor/autoload.php';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                require_once __DIR__ . '/index-functions.php';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use CILogon\Service\Util;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use CILogon\Service\Content;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use CILogon\Service\Loggit;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                Util::startPHPSession();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // Check the csrf cookie against either a hidden <form> element or a  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // PHP session variable, and get the value of the 'submit' element.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // Note: replace CR/LF with space for 'Show/Hide Help' buttons.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $retchars = array("\r\n","\n","\r"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $submit = str_replace(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    $retchars,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    " ",  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    Util::getCsrf()->verifyCookieAndGetSubmit()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                Util::unsetSessionVar('submit'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $log = new Loggit();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $log->info('submit="' . $submit . '"'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // First, check to see if the info related to the 'oauth_token' passed  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // from the Community Portal exists in the current PHP session.  If  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // so, then continue processing based on 'submit' value.  Otherwise,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // print out error message about bad or missing oauth_token info.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                if (verifyOAuthToken(Util::getGetVar('oauth_token'))) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    // Depending on the value of the clicked 'submit' button or the  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    // equivalent PHP session variable, take action or print out HTML.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    switch ($submit) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Log On': // Check for OpenID or InCommon usage.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Continue': // For OOI  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            Content::handleLogOnButtonClicked();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            break; // End case 'Log On'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'gotuser': // Return from the getuser script  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            Content::handleGotUser();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            break; // End case 'gotuser'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Proceed': // Proceed after 'User Changed' or Error page  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Done with Two-Factor':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            Util::verifySessionAndCall('printMainPage'); | 
            
                            
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                            break; // End case 'Proceed'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'OK':  // User allows delegation of certificate  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            handleAllowDelegation(strlen(Util::getPostVar('rememberok')) > 0); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            break; // End case 'OK'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Cancel': // User denies delegation of certificate  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // If user clicked 'Cancel' on the WAYF page, return to the  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // portal's failure URL (or Google if failure URL not set).  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (Util::getPostVar('previouspage') == 'WAYF') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $failureuri = Util::getSessionVar('failureuri'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $location = 'https://www.google.com/';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                if (strlen($failureuri) > 0) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $location = $failureuri . "?reason=cancel";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                Util::unsetAllUserSessionVars();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                header('Location: ' . $location); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                exit; // No further processing necessary  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            } else { // 'Cancel' button on certificate delegate page clicked | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                printCancelPage();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            break; // End case 'Cancel'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Manage Two-Factor':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            Util::verifySessionAndCall(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'CILogon\\Service\\Content::printTwoFactorPage'  | 
            
                            
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                            );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            break; // End case 'Manage Two-Factor'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Enable':   // Enable / Disable two-factor authentication  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Disable':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Verify':   // Log in with Google Authenticator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Disable Two-Factor':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $enable = !preg_match('/^Disable/', $submit); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            Util::verifySessionAndCall(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'CILogon\\Service\\Content::handleEnableDisableTwoFactor',  | 
            
                            
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                                array($enable)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            break; // End case 'Enable' / 'Disable'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'I Lost My Phone':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            Util::verifySessionAndCall(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'CILogon\\Service\\Content::handleILostMyPhone'  | 
            
                            
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                            );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            break; // End case 'I Lost My Phone'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Enter': // Verify Google Authenticator one time password  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            Util::verifySessionAndCall(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'CILogon\\Service\\Content::handleGoogleAuthenticatorLogin'  | 
            
                            
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                            );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            break; // End case 'Enter'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    100
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                        case 'EnterDuo': // Verify Duo Security login  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            Util::verifySessionAndCall(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    102
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                                'CILogon\\Service\\Content::handleDuoSecurityLogin'  | 
            
                            
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                            );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            break; // End case 'EnterDuo'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    106
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                        case 'Show  Help ': // Toggle showing of help text on and off  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        case 'Hide  Help ':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            Content::handleHelpButtonClicked();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            break; // End case 'Show Help' / 'Hide Help'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        default: // No submit button clicked nor PHP session submit variable set  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    112
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                            Content::handleNoSubmitButtonClicked();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    113
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                            break; // End default case  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    } // End switch ($submit)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    115
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                } else { // Failed to verify oauth_token info in PHP session | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    printBadOAuthTokenPage();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    118
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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: