v1.0 Initial commit of project
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51
vendor/robthree/twofactorauth/demo/demo.php
vendored
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51
vendor/robthree/twofactorauth/demo/demo.php
vendored
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<!doctype html>
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<html>
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<head>
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<title>Demo</title>
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</head>
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<body>
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<ol>
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<?php
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// in practice you would require the composer loader if it was not already part of your framework or project
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spl_autoload_register(function ($className) {
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include_once str_replace(array('RobThree\\Auth', '\\'), array(__DIR__.'/../lib', '/'), $className) . '.php';
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});
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// substitute your company or app name here
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$tfa = new RobThree\Auth\TwoFactorAuth(new RobThree\Auth\Providers\Qr\QRServerProvider());
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?>
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<li>First create a secret and associate it with a user</li>
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<?php
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$secret = $tfa->createSecret();
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?>
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<li>
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Next create a QR code and let the user scan it:<br>
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<img src="<?php echo $tfa->getQRCodeImageAsDataUri('Demo', $secret); ?>"><br>
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...or display the secret to the user for manual entry:
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<?php echo chunk_split($secret, 4, ' '); ?>
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</li>
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<?php
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$code = $tfa->getCode($secret);
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?>
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<li>Next, have the user verify the code; at this time the code displayed by a 2FA-app would be: <span style="color:#00c"><?php echo $code; ?></span> (but that changes periodically)</li>
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<li>When the code checks out, 2FA can be / is enabled; store (encrypted?) secret with user and have the user verify a code each time a new session is started.</li>
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<li>
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When aforementioned code (<?php echo $code; ?>) was entered, the result would be:
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<?php if ($tfa->verifyCode($secret, $code) === true) { ?>
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<span style="color:#0c0">OK</span>
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<?php } else { ?>
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<span style="color:#c00">FAIL</span>
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<?php } ?>
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</li>
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</ol>
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<p>Note: Make sure your server-time is <a href="http://en.wikipedia.org/wiki/Network_Time_Protocol">NTP-synced</a>! Depending on the $discrepancy allowed your time cannot drift too much from the users' time!</p>
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<?php
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try {
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$tfa->ensureCorrectTime();
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echo 'Your hosts time seems to be correct / within margin';
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} catch (RobThree\Auth\TwoFactorAuthException $ex) {
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echo '<b>Warning:</b> Your hosts time seems to be off: ' . $ex->getMessage();
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}
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?>
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</body>
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</html>
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